| Entries |
| Document | Title | Date |
|---|
| 20080214980 | SPLITABLE TIP CATHETER WITH BIORESORBABLE ADHESIVE - Splitable-tip catheters are disclosed with bioresorbable adhesive to provide spatial separation of distal tip elements during use. The invention can be particularly useful in hemodialysis applications where it is desirable to separate blood extraction and return lumens. The adhesive facilitates insertion of the distal end of the catheter as an assembly, e.g., into a blood vessel using a single guidewire, while the bioresorbable nature of the adhesive allows the tip elements to separate in vivo. | 09-04-2008 |
| 20080214981 | Extracorporeal Blood Set - A blood set comprises an arterial line having a patient end provided with a multiport connector ( | 09-04-2008 |
| 20080221499 | TRANSDUCER PROTECTOR - A transducer protector (TP) and a method for forming the transducer protector are disclosed. The transducer protector is operable in cooperation with a hemodialysis system, and may be mounted between a drip chamber and a pressure transducer. The transducer protector is mounted in an integrally-assembled housing which includes an inlet from the hemodialysis system or drip chamber, and an outlet to the pressure transducer. The transducer includes at least one hydrophobic membrane that is attached permanently to either a first connector, a second connector or a peripheral ring, the connectors integrally attached to each other to form the TP housing. | 09-11-2008 |
| 20080228125 | Methods and Devices for Rendering Different Types of Patient Access Devices Compatible with Different Types of Tubing Sets - In general, this invention relates to methods and devices for introducing and/or draining fluids into and/or from a patient's body. Methods and devices are provided for rendering conventional tubing sets, or fluid flow sets, which are normally coupleable with only specific complementary patient access devices, compatible with other access devices also. In accordance with one aspect of the invention, methods and devices are provided which render conventional extracorporeal tubing sets to be interchangeably connectable with other specific transcutaneous catheters. In yet another aspect of the invention, non-conventional tubing sets and corresponding non-conventional access devices for use in hemodialysis, or hemofiltration, are provided such that specific tubing sets and access devices can be used interchangeably. | 09-18-2008 |
| 20080281249 | Valves and Conduits for Vascular Access - A dialysis fistula graft comprising a valve mechanism with a valve member which is substantially flush with blood flowing in a blood vessel in the closed configuration and allows for blood flow into the fistula graft when the valve member is in the open position. In one embodiment, a subcutaneous access to the valve is provided in which the valve can be opened or closed by applying force through the skin of a patient. | 11-13-2008 |
| 20080300528 | Arteriovenous access valve system and process - An arteriovenous graft system is described. The arteriovenous graft system includes an arteriovenous graft that is well suited for use during hemodialysis. In order to minimize or prevent arterial steal, at least one valve device is positioned at the arterial end of the arteriovenous graft. In one embodiment, for instance, the arteriovenous graft system includes a first valve device positioned at the arterial end and a second valve device positioned at the venous end. In one embodiment, the valve devices may include an inflatable balloon that, when inflated, constricts and closes off the arteriovenous graft. If desired, a single actuator can be used to open and close both valve devices. | 12-04-2008 |
| 20080306427 | Chronic Hemodialysis Catheter with Balloon - An indwelling catheter device and a method of treatment using the indwelling catheter device are provided. The indwelling catheter device includes an elongate shaft having a proximal portion, a distal portion, a first lumen extending longitudinally therethrough and an inflation lumen extending at least partially through the shaft. The distal portion of the shaft includes a first opening connected to the first lumen. The catheter device further includes a balloon operably connected to an outer surface of the shaft proximal to the first opening wherein the balloon at least partially surrounds the shaft. The inflation lumen is connected to the balloon for selective inflation and deflation of the balloon for disrupting migration of the occluding material and inhibiting the material from occluding the first opening when the catheter device is indwelling. | 12-11-2008 |
| 20080312577 | EXPANDABLE DIALYSIS APPARATUS AND METHOD - A venovenous expandable dialysis apparatus includes a blood feeding needle component configured to introduce blood at a position of a first peripheral vein and a blood withdrawal needle component configured to withdraw blood at another position from a second peripheral vein located, where the first position is located away from the second position. The expandable dialysis apparatus further includes a guide wire having a central axis, an expanding sheath configured circumferentially around the guide wire to form an annular lumen between a distal blood withdrawal position and a proximal extracorporeal position; and a needle disposed around the expandable sheath. | 12-18-2008 |
| 20080312578 | Dialysis catheter - A medical catheter comprising a first return lumen, a plurality of withdrawal lumens, a first clamping member and a plurality of intake extension tubes. Each intake extension tube communicates with an intake lumen of the catheter to provide fluid communication with the respective intake lumens. The intake extension tubes are positioned in a stacked arrangement, and the clamping member has a plurality of posts to receive the stacked tubes to limit lateral movement thereof. | 12-18-2008 |
| 20090043241 | QUICK PRIMING CONNECTORS FOR BLOOD CIRCUIT - A connector system is provided for use in priming a fluid circuit. The system includes a first connector and a second connector. The first connector is configured to couple with one end of a conduit. The first connector has a gas permeable membrane, a main lumen extending from the gas permeable membrane, and a second lumen. The second lumen has a first end configured to couple with a fluid source and a second end in fluid communication with the main lumen. The second connector is configured to couple with an end of a cannula. The second connector has an end configured to be inserted through the gas permeable membrane into the first connector, whereby fluid communication can be established between the main lumen of the first connector and the cannula lumen. | 02-12-2009 |
| 20090054824 | MULTI-LUMEN CATHETER ASSEMBLY - A multi-lumen catheter assembly for use in the extracorporeal treatment of a body fluid of a patient. The catheter assembly includes an elongated catheter body having a pair of lumens extending therethrough, and a septum separating the lumens. The catheter body has an aspiration port in communication with a first lumen for transporting fluid withdrawn from a body vessel to a treatment unit, and an infusion port in communication with a second lumen for return of treated fluid to the vessel. The infusion port is positioned distal of the aspiration port along a length of the catheter body. A flexible member is provided, wherein the flexible member has an end receivable in the first lumen and another end engaged with the catheter body distal of the aspiration port. The flexible member is structured and arranged to maintain a spacing between the aspiration port and a wall of the vessel. | 02-26-2009 |
| 20090054825 | WINGED CATHETER ASSEMBLY - A catheter assembly for use in extracorporeal treatment of a body fluid comprises a catheter body having a plurality of lumens extending therein. The catheter body has an aspiration port in communication with a first lumen for transporting fluid withdrawn from a body vessel to a treatment instrument, such as a dialyzer, and an infusion port in communication with a second lumen for return of treated fluid to the vessel. The catheter body includes a wing-like flap portion extending radially from the catheter body and defining the aspiration port. The flap portion is configured and arranged to space the aspiration port from a wall of the body vessel. | 02-26-2009 |
| 20090054826 | MULTI-LUMEN CATHETER - A catheter for use in extracorporeal treatment of a bodily fluid includes an elongated tubular member having a pair of lumens extending therein, and a septum separating the lumens. A first lumen comprises a withdrawal lumen, and a second lumen comprises an infusion lumen. A withdrawal port disposed along a length of the tubular member communicates with the withdrawal lumen for receiving fluid from a body vessel for transport to a treatment unit, such as a dialyzer. An infusion port disposed along a length of the tubular member communicates with the infusion lumen for returning treated fluid to the vessel. A passageway is formed in an outer wall of the tubular member adjacent the infusion lumen and extends through the septum. A generally tubular conduit extends through the passageway such that the withdrawal lumen communicates with an environment exterior of the tubular member outer wall. | 02-26-2009 |
| 20090076435 | Catheter Assembly - A catheter assembly is provided with a flexible tubular body having two lumens. A solid slidable member with a sharp distal end is disposed within one of the lumens. The slidable member is capable of sliding within the lumen of the tubular body between an exposed position in which the sharp distal end of the slidable member protrudes from the distal end of the tubular body and a shielded position in which the distal end of the slidable member is within the tubular body. One advantage is that the sharp distal end of the slidable member may be withdrawn into the tubular body in order to shield a patient from unintentional cutting or irritation from the sharp distal end of the slidable member. | 03-19-2009 |
| 20090088676 | Perfusion System for Pancreas Treatment - A perfusion system is so formed that enclosed areas may be formed in the artery system related to the pancreas and the venous system related to the pancreas, respectively, by using balloon catheters, the blood inside the venous system in the enclosed area may be extracted outside the human body, and that, after injecting a pharmaceutical such as anticancer agent into the extracted blood, the extracted blood including pharmaceutical may be returned to the artery system in the enclosed area again. | 04-02-2009 |
| 20090093748 | LOOP-TIP CATHETER - A hemodialysis catheter, including an elongate body with an outer wall enclosing an arterial lumen and a venous lumen, and a method of making same. A loop extends from a distal end of the body and defines an enclosed opening. An arterial inlet in fluid communication with the arterial lumen, and a venous outlet in fluid communication with the venous lumen, are positioned on the loop. | 04-09-2009 |
| 20090118661 | CATHETER ASSEMBLY INCLUDING TRIPLE LUMEN TIP - A catheter assembly for use in accessing a vasculature of a patient during renal replacement or other therapies is disclosed. In one embodiment, the catheter assembly includes a catheter body that defines first and second lumens. The catheter body defines a distal tip region that includes a venous lateral opening that is in fluid communication with the first lumen and includes a distal-facing portion. The distal tip region further includes an arterial lateral opening that is in fluid communication with the second lumen, includes a distal-facing portion, and is substantially un-staggered with respect to the venous lateral opening. A distal end opening is defined on the distal tip region and is sized to pass a fluid therethrough. In one embodiment, the distal end opening is in fluid communication with a third lumen of the catheter body that can withstand high fluid flow rates associated with power injection of contrast media. | 05-07-2009 |
| 20090187133 | APPLIANCE FOR CANNULATION OF A BLOOD VESSEL - The present invention relates to an appliance for cannulation of a blood vessel with a cannula which, after introduction into the vessel, is in fluidic communication with the vessel. At least one means is also provided to permit a controlled division of the blood into a first subsidiary stream which leaves the vessel through the cannula, and a second subsidiary stream which continues to flow through the vessel. | 07-23-2009 |
| 20090192435 | SOLID-BODY CATHETER INCLUDING LATERAL DISTAL OPENINGS - A split-tip catheter for placement within the vasculature of a patient and for use in hemodialysis or other suitable procedures is disclosed. In one embodiment, the split-tip catheter includes a catheter body that defines a first lumen and a second lumen. The catheter body further comprises a split distal region, including a venous segment and an arterial segment. The venous segment includes a recess extending proximally of a nose portion; and a lateral opening in fluid communication with the first lumen. The arterial segment also includes a lateral opening, is separate from the venous segment, and is removably seatable in the recess provided by the venous segment. In one embodiment, the distal region is un-split, but includes symmetrically opposed lateral openings, as well as distal openings, in communication with the first and second lumens for providing a functional stagger for blood flow in both forward and reverse catheter flow directions. | 07-30-2009 |
| 20090198171 | DEVICE FOR USE IN AN ARRANGEMENT FOR MONITORING AN ACCESS TO A PATIENT, AND METHOD FOR MONITORING A PATIENT ACCESS, IN A PARTICULAR VASCULAR ACCESS IN EXTRACORPOREAL BLOOD TREATMENT - The present invention relates to a device for monitoring a patient access, in particular a vascular access in extracorporeal blood treatment. The device is used to establish a substantially parallel connection between the arterial and venous tubes, or the arterial and venous puncture needles. If the venous needle slips out of the vascular access, the arterial cannula is forcibly withdrawn. This incident is reliably detected by the known protection systems which monitor the pressure in the arterial tube and/or an air intake. In addition, the present invention relates to an extracorporeal blood treatment device and to a method for monitoring a patient access, wherein the venous and arterial tubes or the puncture needles are connected to each other. | 08-06-2009 |
| 20090204052 | MANUFACTURE OF SPLIT TIP CATHETERS - Multi-lumen catheter devices having at least one split-tipped end are disclosed, together with methods of forming such split tip catheters. In one aspect of the invention, the manufacturing methods can include the steps of: providing a catheter body having at least a first and a second internal lumen extending longitudinally through the catheter body; removing a distal portion of the catheter body to form a first distal tip segment such that the first lumen extends longitudinally within this tip segment beyond the second lumen; and joining a second lumen tip segment to the catheter body in communication with the second lumen. The second tip segment can be joined to the catheter body such that it is at least partially separated from the first tip segment and, in some embodiments, preferably diverges at an angle relative to the first tip segment. | 08-13-2009 |
| 20090216174 | DOUBLE LUMEN DIALYSIS CATHETER WITH CLOSEABLE ARTERIAL DISTAL PORT - A dialysis catheter which includes a first tube having a first tube distal end with an intake port and a second tube that extends parallel to and is connected to the first tube, with the second tube having a second tube distal end with a discharge port is provided. A cover is located on the first tube that it movable from a first position, in which it blocks the intake port, to a second position, which the intake port is unblocked. A longitudinally extending control wire hole is defined in a wall of the first tube. A control wire extends through the hole, with the control wire having a first end that is fixed to the cover. The second end of the control wire is connected to a switch that is moveable in order to move the cover between the first and second positions. This arrangement helps to prevent blockage of the arterial intake port due to thrombosis and fibrin buildup. | 08-27-2009 |
| 20090221949 | Device and method for circulatory isolation and treatment of a part of a body - An apparatus for circulatory isolation and treatment of a part of a patient's body includes a fluid circulation loop having a first end and a second end, a flow obstructer adapted for obstructing blood flow in a patient's blood vessel such that a body part or organ becomes circulatorily isolated from the circulation of the rest of the body, and a flow-through arrangement including first and second flow-through members respectively connected to the first and second ends of the fluid circulation loop, for providing the isolated part of the patient's body with a fluid connection to the fluid circulation loop, allowing circulation of a therapeutic fluid through the isolated body part. | 09-03-2009 |
| 20090221950 | CATHETER AND TUNNELING DEVICE THEREFOR - A catheter for introduction and removal of fluids from a body and tunneling device therefor, the catheter has a body having a first conduit for removing fluid from the body and a second conduit for delivering fluid to the body wherein at least a part of each of the conduits is integrally formed within a first end of the body and extends along side one another. The first conduit extends beyond the second conduit and forms a terminal point of the first end and defines a first opening thereat and the second conduit extends to a point short of the terminal point defining a second opening. A bumper portion is adjacent the second opening extending toward the terminal point. Another part of each the first and the second conduits are disjoined and form part of a second Y-shaped end. The tunneling device has a channel to removably receive the catheter. | 09-03-2009 |
| 20090287135 | Catheter - The present invention provides a catheter for extraction that can efficiently extract blood flowing in coronary sinus from coronary artery through coronary vein and has the same operability as catheters used in conventional PCI. The present invention also provides a catheter for extracorporeal circulation that can lessen an introduction number of devices for blood access as little as possible and reduce further the burden to a patient, in addition to the same operability as the catheters used in the conventional PCI. The catheter for extraction is equipped with blood extracting lumen in an inside and equipped with a hub at a proximal end portion, and when a minimum sectional area to a circumferential direction of the blood extracting lumen is referred to as S1 and immersion side length is referred to as L1, an equivalent diameter D1 satisfies the formula defined by D1=(4×S1)/L1 and the equivalent diameter D1 is at 1.80 mm. The catheter for extracorporeal circulation also has blood extracting lumen extending from the distal end to the proximal end and blood return lumen extending from the proximal end of the catheter to a fixed length distal end. | 11-19-2009 |
| 20090292235 | Cardiotomy Reservoir with Total Massive Air Emboli Protection Safety Valve - A total massive air emboli protection safety valve during cardio pulmonary bypass to protect the massive air embolism without allowing any air into the arterial system by keeping a minimum level of blood into venous cordiatomy reservoir, keeping the patient's life very much safe. It will be in-built in the resent hard shell cordiatomy reservoirs and no need to attach and pay anything extra. | 11-26-2009 |
| 20090292236 | METHOD AND DEVICE FOR MONITORING AN EXTRACORPOREAL BLOOD CIRCUIT - To monitor an extracorporeal blood circuit during extracorporeal blood treatment, the arterial pressure and venous pressure in the arterial branch and venous branch of the extracorporeal circuit are measured by pressure sensors, and the sum P | 11-26-2009 |
| 20090299261 | Expandable Catheters and Methods Relating Thereto - In accordance with certain embodiments of the present disclosure, a catheter is provided. The catheter includes a body having a proximal portion and a distal portion. The body comprises a first element sealably interwoven with a second element to define a longitudinally extending lumen configured to pass fluid therethrough. The first element is wound in a clockwise direction and the second element is wound in a counterclockwise direction. The body further comprises a mechanism configured to cause the distal portion of the body to move toward the proximal portion causing the diameter of the lumen to increase. | 12-03-2009 |
| 20090306574 | DEVICE AND METHOD FOR MONITORING ACCESS TO A PATIENT, IN PARTICULAR ACCESS TO VESSELS DURING EXTRACORPOREAL BLOOD TREATMENT - The invention relates to a device and to a method for monitoring access to vessels during extracorporeal blood treatment. The invention forms a loop in the arterial and/or venous line and provides device for fixing a section of the line in a loop. When the line is stressed under tension, the loop contracts and the line finally kinks. The modification of the diameter of the line and the formation of a kink in the line leads to a rise of pressure in the line, which is monitored by a pressure monitoring device. If the pressure exceeds a predetermined threshold value, the aspirating cannula is in danger of slipping out of the vessel access or has partially or completely slipped out, thus allowing the threshold value to be determined for alarms. | 12-10-2009 |
| 20090312687 | Dialysis Catheter - A medical catheter comprising a first return lumen, a plurality of withdrawal lumens, a first clamping member and a plurality of intake extension tubes. Each intake extension tube communicates with an intake lumen of the catheter to provide fluid communication with the respective intake lumens. The intake extension tubes are positioned in a stacked arrangement, and the clamping member has a plurality of posts to receive the stacked tubes to limit lateral movement thereof. | 12-17-2009 |
| 20100010413 | Needle for Subcutaneous Port - This disclosure relates to a new type of needed for a subcutaneous port or for any use where blood is recycled, and more precisely to a needle with reduced friction openings for easing blood and its elements along a passageway made of a through bore in the body of a needle. The needle includes an oval shape opening for increased mechanical resistance of the needle while allowing a greater passage curvature of the blood cells at the greatest zone of passage. In other embodiments, a plurality of staggered openings is used to reduce the flow through any single opening where damage occurs, the openings can be made in a curved area, or a plurality of smaller openings or a grid made of openings can be used to further reduce the interference of the needle tip and the needle openings on blood. | 01-14-2010 |
| 20100016779 | MOLECULAR EXCHANGE DEVICE - The present application relates to a molecular exchange device ( | 01-21-2010 |
| 20100022939 | Cannula tip for use with a vad - In one embodiment of the present invention, a cannula for use with a blood circulation device may include the cannula having a longitudinal axis and proximal and distal directions along the longitudinal axis. The cannula may also include a proximal portion having a wall extending around the longitudinal axis and having outer and inner faces, the inner face may define a bore, the proximal portion may have dimensions transverse to the longitudinal axis, and the dimensions may be constant in the proximal and distal directions. Also, the cannula may have a distal portion having an outer face, continuous with the outer face of the proximal portion. The outer face of the distal portion may extend around and along the longitudinal axis, and the outer face of the distal portion may taper distally toward the longitudinal axis. The distal portion may include at least two openings extending from the outer face of the distal portion, which may merge with one another within the distal portion. Then, the openings may communicate with the bore of the proximal portion. One type of blood circulation device may be a ventricular assist device. | 01-28-2010 |
| 20100036307 | METHODS, APPARATUSES AND SYSTEMS FOR CAVAL STENTING FOR VENOUS DRAINAGE - A self expanding cannula with improved drainage properties based upon its greater length is provided, along with methods of using the cannula in cardiopulmonary bypass. | 02-11-2010 |
| 20100049116 | DIALYSIS CATHETER - A catheter assembly includes catheter having proximal and distal ends and at least one lumen extending between the ends. At least one end of the catheter is formed from a material that can be trimmed to achieve a selected length for the catheter. A tubular connector is telescoped over the catheter and a hub is joined to the tubular connector. Proximal portions of the hub are configured for connection to a medical apparatus. A cuff is mounted around the tubular connector or the catheter. The cuff is formed from a material that will permit or promote the growth of scar tissue for anchoring the catheter device at least on a semi-permanent basis in a patient. | 02-25-2010 |
| 20100056975 | BLOOD LINE CONNECTOR FOR A MEDICAL INFUSION DEVICE - A blood line connector for a blood circuit of a hemodialysis unit with an ability to make two different types of fluid tight connections, e.g., a screw-type connection with a luer connector at a patient access and a press-in type connection with a dialysate circuit. The blood line connector may include a tube connection end arranged to sealingly engage with a blood circuit tube, and a patient access connection end with a frustoconical member having an internally threaded portion arranged to engage with an externally threaded patient access, and a pair of locking arms extending rearwardly from the frustoconical member. The locking arms may each have a finger depression portion and a barbed portion, and may be arranged to engage with a mating connector on the dialysis unit at the barbed portions to lock the frustoconical member in sealing engagement with the mating connector when making a press-in type connection. | 03-04-2010 |
| 20100056976 | VENOUS LINE DISCONNECTION / VENOUS NEEDLE DISLODGEMENT CLAMP - In renal haemodialysis there is a condition whereby the patient can by at serious risk of harm if the venous line becomes disconnected or the venous needle becomes dislodged and the haemodialysis machine does not detect this condition. The invented device is designed to safeguard haemodialysis patients from serious losses of blood through venous line disconnection or venous needle dislodgement. The invented device is designed to clamp the venous line automatically before venous needle dislodgement or venous line disconnection becomes a serious problem and to make the haemodialysis machine stop drawing blood from the patient This will cause the haemodialysis machine to alarm in the normal way so as to alert the patient or healthcare worker to the problem. The invented device will have to be manually reset before therapy can continue. | 03-04-2010 |
| 20100069818 | Self-Stripping Hemodialysis Catheter - A hemodialysis catheter is provided with an exterior surface that has two or more lumens, wherein at least one large hole extends through the exterior surface for dialysis and at least one small hole extends through the exterior surface, in proximity to the large hole. A first lumen serves as a blood outflow path from the arteriovenous system and a second lumen serves as an inflow path for blood to be returned to the system. The large holes provide for blood exchange and the small holes are strategically placed in proximity to and around the large holes and may comprise an angled wall so as to allow for a jetting of blood or a sterile solution at high force over the surface of the catheter that strips off the biofilm as it is formed on the exterior surface of the catheter. | 03-18-2010 |
| 20100081986 | Valved Hemodialysis Catheter - A dialysis catheter includes an elongate catheter member having an outer wall member defining proximal and distal end regions and a longitudinal axis, and defining first and second longitudinal lumens. The outer member includes first and second ports in respective fluid communication with the first and second longitudinal lumens. The first opening and the first lumen define an inflow passage for removal of blood under vacuum for circulation within a hemodialysis machine. The second opening and the second longitudinal lumen define an outflow passage for return of the blood from the hemodialysis machine. A valve is disposed relative to the outer member proximal of the first port. The valve is adapted to move from a closed position to an open position in response to a predetermined vacuum pressure level realized within the first longitudinal lumen to permit flow of blood through the valve and into the first longitudinal lumen. The valve may be adapted to move to the open position in the event of an at least partial luminal occlusion within the first longitudinal lumen at locations distal of the valve. | 04-01-2010 |
| 20100145251 | Prevention of indwelling device related infection: compositions and methods - Catheters used for medical treatment, e.g., hemodialysis are filled with a locking solution, usually heparin between treatments. To prevent infections, antimicrobial or antibiotic substances have been used as locking solution alone or in combination with antithrombotic substances. It has been found that these locking solutions are rapidly washed out from the catheter tip. The invention describes a thixotropic gel that can be used as locking solution. Beneficial substances, e.g., antimicrobial or antibiotic substances can be added to the gel. A preferred antimicrobial substance is taurolidin alone or in combination with salicylic acid or one of its salts. | 06-10-2010 |
| 20100145252 | Prevention of indwelling device related infection: compositions and methods - Catheters used for medical treatment, e.g., hemodialysis are filled with a locking solution, usually heparin between treatments. To prevent infections, antimicrobial or antibiotic substances have been used as locking solution alone or in combination with antithrombotic substances. It has been found that these locking solutions are rapidly washed out from the catheter tip. The invention describes a thixotropic gel that can be used as locking solution. Beneficial substances, e.g., antimicrobial or antibiotic substances can be added to the gel. A preferred antimicrobial substance is taurolidin alone or in combination with salicylic acid or one of its salts. | 06-10-2010 |
| 20100152640 | METHODS AND APPARATUS FOR VASCULAR ACCESS - Methods and systems are described for creating chronic vascular access or hemodialysis. These methods and systems eliminate the insertion of needles which are now required for using the available methods of obtaining vascular access. Thus multiple complications due to needle insertion through skin, tissue, and vein or graft wall are prevented. A low-profile stable transcutaneous implant's external surface and stability minimizes infection. The implant is readily joined to a connector device that functions substantially automatically and which provides high blood flow volumes for hemodialysis. | 06-17-2010 |
| 20100168642 | Multilumen Venous Catheter and Method of Use - A multilumen venous access catheter and method of use and repair is provided. The catheter has a means for identifying at least one physical characteristic of an arterial tube and a means for identifying at least one physical characteristic of a venous tube. The at least one physical characteristic of the respective arterial and venous tubes are different in order to allow a user to distinguish between the arterial and venous catheter tubes during use, manufacture, and repair. | 07-01-2010 |
| 20100168643 | INFUSION SITE FOR IMPROVED MIXING OF FLUIDS - The invention relates to a blood line ( | 07-01-2010 |
| 20100191165 | Multilumen Catheters and Method of Manufacturing - A multilumen catheter assembly and method of making the catheter assembly is provided that involves providing a plurality of tubes, each tube having a first end, a second end, at least one lumen, and at least one surface, selectively heating at least a portion of the surface of at least a first tube of the plurality of tubes, and contacting the selectively heated portion of the tube with a portion of the surface of a second tube to form a multilumen catheter shaft that is joined together along at least a portion of the length of the catheter shaft. | 07-29-2010 |
| 20100191166 | SUBCUTANEOUS VASCULAR ACCESS PORTS AND RELATED SYSTEMS AND METHODS - Ports for accessing a vessels within a patient include passageways that can guide needles or other access devices directly into the vessels. The ports can be implanted subcutaneously within a patient. Some ports may be used in the creation and use of vascular access buttonholes. | 07-29-2010 |
| 20100204635 | Catheter System With Attachable Catheter Hub - A hemodialysis catheter assembly adapted for use in a subcutaneous tunneling procedure incorporates a mechanism for securing the catheter hub member to the elongated catheter, and to provide the requisite fluid communication between fluid passages within the hub and the catheter lumens within the catheter. The catheter hub member may be connected to the elongated catheter after implantation of the catheter via a subcutaneous tunneling procedure. | 08-12-2010 |
| 20100210990 | CATHETER/FISTULA NEEDLE TO BLOODLINE CONNECTION ASSURANCE DEVICE - In general, multiple embodiments of a catheter/fistula needle to bloodline connection assurance device, which secures and strengthens a connection between an extension tube end of a catheter or fistula needle and a bloodline are provided. A first embodiment of the assurance device is configured to be compatible with any industrial catheter/fistula needle female luer connector and is specifically configured for use with a bloodline connector having locking clips which are biased slightly outwardly from the bloodline connector. The first embodiment of the assurance device is cylindrical and includes clamshell halves that open rotatably about at least one hinge. The first embodiment of the assurance device includes an upper, threaded portion and a lower housing portion. The interior wall of the upper portion defines a plurality of barbs configured to engage with distal or moveable ends of the locking clips. Each locking clip is biased slightly outwardly to enable the distal or moveable end of the locking clip to fit between two respective barbs. The barbs are spaced as close together as possible to prevent any axial movement of the bloodline connector when the assurance device is engaged about the mated connectors. | 08-19-2010 |
| 20100228178 | HEMODIALYSIS CATHETER APPARATUS - A catheter apparatus is provided for reducing blood clotting in connection with hemodialysis treatment. The catheter apparatus can comprise a first conduit defining an arterial lumen and a second conduit defining a venous lumen. Large staggered apertures can be provided in side walls of the conduits with at least one of the apertures having a cross-sectional area equal or greater than a cross-sectional area of one of the lumens. The catheter apparatus can further include first and second removable obturators adapted for axial insertion into the conduits and for occluding the apertures while so inserted. Advantageously, the obturators can wipe the apertures during removal, causing blood clots incident on the apertures to be dislodged from the apertures. Related methods for using the catheter apparatus in performing hemodialysis treatment are also provided. | 09-09-2010 |
| 20100274174 | Biased Clamping Assemblies - A medical clamping assembly includes a housing defining a chamber and a deflecting member operable to slide relative to the housing between a first position and a second position. A conduit is also provided within the housing and is adapted for fluid coupling to a medical device. The medical clamping assembly also includes a biasing element disposed within the housing adjacent to the conduit. The deflecting member is movable relative to the housing between the first position corresponding to an open state of the conduit and the second position corresponding to a closed state of the conduit whereby the biasing element compresses the conduit to substantially close a lumen of the conduit. | 10-28-2010 |
| 20100298754 | Indwelling device - A medical device for insertion into a body having a surface covered by a detachable cover. The cover may be detached from the surface and removed from the body while the device is inserted in the body. The device may be, for example, a catheter, cannula, drain, stent, pacemaker, or electrode. | 11-25-2010 |
| 20100324466 | Multi-port fluid access device and method - The invention provides a multi-port fluid access device for medical use, such as in a blood-flow circuit during dialysis. The device has a main tubular body and a needle access port and a needleless access port located at positions axially offset from each other. Each port has a tubular body with a septum sealing the passageway to the main fluid channel of the main tubular body. Alongside the main tubular body are members providing finger-gripping surfaces at or near the axial position of the needle access port. There is also a needle shield located between the finger gripping surfaces and the needle access port. Use of the device permits either or both of needle access and needleless access to a patient's blood during dialysis. | 12-23-2010 |
| 20100331755 | METHODS FOR SELECTIVE THERMAL TREATMENT - Systems and methods for selective cooling of a target site include a catheter having a supply lumen and a delivery lumen, with inlet and exit ports. Blood is withdrawn from the supply lumen and cooled or heated in a control unit. The treated blood is sent to the targeted area via delivery lumen. The supply lumen can act as an insulator for the delivery lumen. | 12-30-2010 |
| 20110009800 | DIALYSIS SYSTEMS INCLUDING NON-INVASIVE MULTI-FUNCTION SENSOR SYSTEMS - A dialysis system that includes a dialysis machine, a tube connected to the dialysis machine, and a sensor system. The sensor system includes a head having a slot configured to receive the tube and a plurality of sensors secured to the head adjacent the slot. At least one of the plurality of sensors includes a light emitting element configured to transmit light through the tube when the tube is disposed in the slot and a light receiving element configured to receive the light emitted by the light emitting element after the light passes trough the tube. | 01-13-2011 |
| 20110015558 | Isolating cardiac circulation - In a method for substantially isolating cardiac circulation from systemic circulation, flow between the coronary sinus and the right atrium is occluded. A venous collection device having a collection lumen and a support structure is located in the coronary sinus. The support structure is used to maintain patency of the coronary sinus during collection of fluid through the collection lumen. An artificial flow path is provided between the collection lumen and the one or more coronary arteries, thus isolating the cardiac circulation. According to the method, cardiac pumping for systemic circulation can be maintained during isolation of the cardiac circulation. | 01-20-2011 |
| 20110015559 | Dialysis Catheter - A dialysis catheter comprising a catheter body having a proximal portion, a distal portion, a first longitudinally extending central lumen configured to deliver blood, and at least three longitudinally extending lumens positioned radially of the central lumen and configured to withdraw blood from a patient. At least one blood delivery opening is formed in the distal portion of the catheter body and in fluid communication with the first lumen and configured for passage of blood therethrough. At least three blood withdrawal openings are formed in the outer wall of the catheter body, wherein each of the openings is in fluid communication with one of the at least three lumens and is configured for passage of blood from a patient | 01-20-2011 |
| 20110021967 | DEVICE AND METHOD FOR MONITORING AN ACCESS TO A PATIENT - The present invention relates to a device and a method for monitoring a patient access, particularly for monitoring the venous vascular access in extracorporeal blood treatment where blood is withdrawn from the patient via a flexible arterial line which has an arterial needle or cannula, and provided to the patient via a flexible venous line which has a venous needle or cannula. The needle or cannula of the present invention is so designed that, due to the liquid flowing through the needle or cannula, air is drawn in if the needle or cannula is out of the vascular access, whereby sound is generated. A vascular access which is not in proper order is detected with great certainty and reliability by monitoring the surrounding environment for the occurrence of sound, particularly for the occurrence of the solid-borne sound which propagates along the flexible venous line of the extracorporeal blood circuit. | 01-27-2011 |
| 20110034852 | IMPLANTABLE ACCESS FOR REMOVAL AND/OR RETURN OF FLUIDS - Implantable access device for removal and/or return of fluids to a patient, comprising a casing attached to an internal conduit to be connected with a lumen of the patient; a connector attached at the casing and connected to an external conduit, and arranged for attachment of an extracorporeal lumen to the device; and an actuator unit within the casing to selectively allow or block the fluid communication between the internal conduit and the external conduit; the device further comprising a fixation unit integrated in or attached at the casing arranged for fixation of the device to a bone of the patient; wherein the fixation unit extends axially along the longitudinal axis of the device. The disclosed access device can be used for high volume removal and/or return of blood or other fluids from the patient. | 02-10-2011 |
| 20110060263 | Medical Devices and Methods for Assisting in Sub-Scab Access - Device and methods for separating a scab from a vascular access site are disclosed. The devices include providing a scab separation device having a point for initial separation of a portion of a scab from a patient's flesh, and a series of inclined surfaces leading from the point to lift and separate the scab from the access site. The scab separation device is provided with a cover so that the device is maintained as sterile. In a preferred embodiment, the scab separation device is provided as a set or assembly with a needle or needle set and, in a more preferred embodiment, the scab separation device cover is also used as a cover for a needle to maintain sterility both of an operative end of the separation device and of the needle. | 03-10-2011 |
| 20110077577 | Medical Catheter Having a Design Providing Low Recirculation and Reversibility - The present disclosure relates to a medical catheter including an elongate catheter member defining a longitudinal axis and having a proximal end, a distal end, an outer wall, and first and second internal lumens. The outer wall of the catheter member includes a first opening in fluid communication with the first internal lumen to facilitate the establishment of a first flow stream, and a second opening in fluid communication with the second internal lumen to facilitate the establishment of a second flow stream. Each of the first and second openings includes proximal and distal tapered portions that are connected by an intermediate portion having a constant transverse dimension. The configurations, dimensions, and positioning of the first and second openings optimizes separation of the first flow stream from the second flow stream in order to reduce the likelihood of recirculation between the first and second internal lumens. | 03-31-2011 |
| 20110092876 | Chronic Hemodialysis Catheter with Balloon - An indwelling catheter device and a method of treatment using the indwelling catheter device are provided. The indwelling catheter device includes an elongate shaft having a proximal portion, a distal portion, a first lumen extending longitudinally therethrough and an inflation lumen extending at least partially through the shaft. The distal portion of the shaft includes a first opening connected to the first lumen. The catheter device further includes a balloon operably connected to an outer surface of the shaft proximal to the first opening wherein the balloon at least partially surrounds the shaft. The inflation lumen is connected to the balloon for selective inflation and deflation of the balloon for disrupting migration of the occluding material and inhibiting the material from occluding the first opening when the catheter device is indwelling. | 04-21-2011 |
| 20110105984 | DUAL LUMEN DIALYSIS CATHETER WITH INTERNALLY BORED OR EXTERNALLY-GROOVED SMALL BORE - A dual lumen catheter for insertion into a vein of a patient for use in hemodialysis treatments. An asymmetric dialysis catheter may have a tube containing at least an axial septum asymmetrically disposed within the tube, thereby defining a first and a second lumens, wherein said first lumen is larger in cross sectional area than said second lumen, and a single lumen catheter inserted through the first lumen. | 05-05-2011 |
| 20110137225 | MULTI-LUMEN CATHETER - A catheter for use in the extracorporeal treatment of bodily fluids comprises a catheter body having a withdrawal port, an infusion port, and a plurality of lumens therein. The lumens comprise two or more withdrawal lumens that merge to form a single lumen proximal to withdrawal ports for transport of fluids withdrawn from a body vessel through the withdrawal port to an extracorporeal treatment unit, such as a dialyzer. The lumens also comprise an infusion lumen for infusion of treated fluids from the extracorporeal treatment unit through the infusion port into the vessel. The infusion lumen is disposed substantially at the center of the catheter body, while the withdrawal lumens extend longitudinally adjacent the infusion lumen along the catheter body length. A manifold may be provided at the proximal end of the catheter body to include the merger of the withdrawal lumens. | 06-09-2011 |
| 20110152741 | CANNULA SYSTEM - A cannula system for removing fluid from a patient's vasculature includes a cannula and an obturator. The cannula includes a proximal end, a distal end, and an elongate flexible tube extending therebetween. The cannula has a central lumen. The obturator is sized for insertion into the cannula's central lumen and is also configured to extend beyond the cannula distal end. A tapered portion at the cannula's distal end provides a smooth transition and an interference fit between the cannula and the obturator. The obturator includes an obturator central lumen and an opening at its distal end that is sized to receive a guidewire. | 06-23-2011 |
| 20110190682 | NEEDLE PLACEMENT DETECTION AND SECURITY DEVICE AND METHOD - A blood access device includes (i) a conductive needle configured to pierce a patient's skin and gain access to a blood vessel; (ii) an insulative housing supporting a fluid communication junction between the needle and flexible tube; (iii) a conductor having a first end connected to the insulative housing and a second end extending from the insulative housing in a direction coextensive with the needle such that (a) when the needle has gained access to the blood vessel the patient's skin, the conductor is electrically insulated from the conductive needle and (b) if the needle is pulled so as to interrupt access with the blood vessel, the conductive needle and the conductor come into contact with each other. | 08-04-2011 |
| 20110190683 | EXPANDABLE AND COLLAPSIBLE MEDICAL DEVICE - A catheter (or cannula) is small enough in diameter to be placed minimally invasively into the body of a patient but also can be expanded post-placement to provide a larger-diameter placed catheter that supports fluid flow at a rate higher than is possible through the pre-placement reduced-diameter catheter. The expandable catheter is constructed using one or more shape memory polymers and can include one or more stent-like sections and/or at least part of the cannula formed as folded lobes. Each of the stent-like sections is configured to enhance the flexibility of the section as compared to the other parts of the catheter and thus allow the section to accommodate tight bends and turns when inserted into the body of the patient. The folded lobes are axial folds that constitute at least one section of the cannula, and they unfold upon expansion of the catheter to create a large cross-sectional shape. | 08-04-2011 |
| 20110213291 | HEMODIALYSIS CATHETER - A hemodialysis catheter comprising a dual lumen catheter tube with a molded plastic bolus formed at the distal end of the tube. The tube and bolus assembly which results has arterial and venous ports which overlap each other longitudinally but are oriented on opposite sides of the tube and bolus assembly. | 09-01-2011 |
| 20110275974 | Clear Flush Check Flow - The disclosure provides apparatus and methods a flow adapter for use with a medical introducer. The flow adapter comprises a housing, a connector disposed on the distal end of the housing, a valve member disposed within the housing, and a side port disposed on the housing. The housing comprises a first opening in a proximal end of the housing, a second opening in a distal end of the housing, and a passageway extending between the first and second openings. The first and second openings and the passageway are configured for the passage of an elongate medical device there through. The connector is in communication with the second opening and is configured for attachment to the medical introducer. The valve member disposed within the housing is configured to prevent the leakage of blood from the adapter. The side port disposed on the housing is configured to be attached to a source of flushing fluid. The side port is fluidly connected to the passageway by one or more conduits extending along a side of the housing and the conduits are configured to direct the flushing fluid to a proximal portion of the passageway adjacent to the first opening. | 11-10-2011 |
| 20110295176 | VENOUS DEVICE - A needle can include a fluid directing portion comprising a U-shaped lateral orifice extending between the exterior and interior surfaces and a corresponding U-shaped diverter adjacent to the U-shaped lateral orifice. A diverter can be disposed within a lumen of a needle and transverse to a central axis within the lumen. | 12-01-2011 |
| 20110295177 | Treating Heart Tissue - Some embodiments of a system or method for treating heart tissue can include a catheter device that provides a user with the ability to perform a number of heart treatment tasks (before, during, and after a cardiac surgery or a percutaneous coronary intervention). In particular embodiments, the catheter device can be used to (i) precondition heart muscle tissue before the heart is isolated from the circulatory system, (ii) deliver cardioplegia into the coronary sinus during the cardiac surgery when the heart is isolated from the circulatory system, and (iii) control the blood flow through the heart after the heart is reconnected with the circulatory system. In some embodiments, the catheter device can perform some or all of: (i) intermittently occluding the coronary sinus, (ii) delivering a treatment fluid into the coronary sinus, and (iii) monitoring a flow rate of blood passing from the coronary sinus to the right atrium. | 12-01-2011 |
| 20110301522 | DIALYSIS CATHETER - A dialysis catheter including a first portion having an outer wall having a first diameter, an elongated distal portion having a second diameter smaller than the first diameter, and a transition region between the first portion and distal portion. A first longitudinally extending venous lumen is configured to deliver blood. First and second independent longitudinally extending arterial lumens are configured to withdraw blood from a patient. The venous lumen and arterial lumen have first and second regions each positioned a first distance from the outer wall of the catheter and a third region positioned a second shorter distance from the outer wall of the catheter to form an arch shaped wall portion progressively increasing in thickness from the third region toward the first region and from the third region to the second region. | 12-08-2011 |
| 20120029410 | Apparatus for detecting moisture for an apparatus for monitoring the access to a patient, in particular for monitoring the vascular access during extracorporeal blood treatment - An apparatus is disclosed for detecting moisture, which is intended for the use in an apparatus for monitoring an access to a patient for a device by means of which a fluid is conducted to and/or removed from a patient via a hose line, in particular for monitoring the vascular access during an extracorporeal blood treatment, wherein blood of a patient is removed from the patient via an arterial hose line, which has an arterial puncture cannula, and is conducted back to the patient via a venous hose line, which has a venous puncture cannula. The apparatus for detecting moisture is designed as a pad which is made of a flexible material and is to be applied onto the patient's skin and which comprises an upper side facing away from the patient's skin and a lower side facing the patient's skin. The pad comprises an opening for the passage of fluid, in particular blood, and a moisture sensor having contact elements for the connection of the same. The moisture sensor is capable of detecting blood flowing through the opening to the surface of the pad. The apparatus according to the invention is characterized in that the lower side of the pad is impervious to fluid. | 02-02-2012 |
| 20120059304 | SPLIT-TIP CATHETER INCLUDING LATERAL DISTAL OPENINGS - A split-tip catheter for placement within the vasculature of a patient and for use in hemodialysis or other suitable procedures is disclosed. In one embodiment, the split-tip catheter includes a catheter body that defines a first lumen and a second lumen. The catheter body further comprises a split distal region, including a venous segment that defines a distal portion of the first lumen and an arterial segment that defines a distal portion of the second lumen. The venous segment includes a recess extending proximally of a nose portion; and a lateral opening in fluid communication with the first lumen. The arterial segment is separate from the venous segment and is removably seatable in the recess provided by the venous segment such that it “nests” therein. The arterial segment also includes a lateral opening in fluid communication with the second lumen. | 03-08-2012 |
| 20120065569 | DOUBLE LUMEN CATHETER - The present invention concerns a double-lumen catheter and a method for delivering or withdrawing fluids to/from a patient, in particular for use in hemodialysis. The double-lumen catheter comprises an elongated tubular body having a proximal end and distal end, with the distal end being positionable within a vessel of a patient, a divider wall extending along an interior of said tubular body and separating said interior into an intake lumen and a return lumen. The intake lumen and said return lumen each comprise an opening sloping toward the divider wall and toward the distal end of the tubular body, respectively, the openings. | 03-15-2012 |
| 20120089070 | Catheter Assembly Including Triple Lumen Tip - A catheter assembly for use in accessing a vasculature of a patient during renal replacement or other therapies is disclosed. In one embodiment, the catheter assembly includes a catheter body that defines first and second lumens. The catheter body defines a distal tip region that includes a venous lateral opening that is in fluid communication with the first lumen and an arterial lateral opening that is in fluid communication with the second lumen. | 04-12-2012 |
| 20120095382 | GAMMA ACCUMULATOR - A device (FIGS. | 04-19-2012 |
| 20120150091 | ACOUSTIC ACCESS DISCONNECTION SYSTEMS AND METHODS - An access disconnection system includes a blood treatment machine including a housing, an access site detection housing separate from the blood treatment machine housing, a transmitter positioned in the access site housing and configured to transmit an ultrasound wave into a blood stream of a patient, a receiver positioned in the access site housing and configured to receive a reflection of the ultrasound wave from the blood stream of the patient; and electronic circuitry in communication with the transmitter and the receiver. The electronic circuitry is supported by the access site detection housing, and the transmitter is configured to send a wireless disconnection output to the blood treatment machine. The disconnection output is indicative of a change in the reflected ultrasound wave received by the receiver sufficient to expect that an access disconnection of one of the arterial line and the venous line has occurred. | 06-14-2012 |
| 20120165718 | TUBE SET FOR A BLOOD HANDLING APPARATUS AND BLOOD HANDLING APPARATUS COMPRISING A TUBE SET - A tube set for a blood handling apparatus, in particular an extracorporeal blood handling apparatus with an extracorporeal blood circuit or an apparatus for peritoneal dialysis, and a blood handling apparatus that has such a tube set are described. The tube set includes a device for collecting particles provided in a tube line portion of the tube set downstream of the tube portion placed in the occluding hose pump. The device for collecting particles prevents retention of solid substances that are possibly contained in the dialysis fluid, substituate or peritoneal solution. The tube set also has a device for limiting the pressure in the tube line portion between the occluding hose pump and the device for collecting particles. The device for limiting the positive pressure prevents an excessive positive pressure from building up in the tube line when fluid flow through the device for collecting particles is reduced or interrupted. | 06-28-2012 |
| 20120165719 | ACOUSTIC ACCESS DISCONNECTION SYSTEMS AND METHODS - An access disconnection system includes: an arterial line; a venous line; a transmitter configured to transmit a sound wave in one of the arterial and venous lines when connected to a patient; a receiver configured to receive the sound wave from the other of the arterial and venous lines when connected to the patient; and electronic circuitry coupled to at least one of the transmitter and receiver, the circuitry configured to send a disconnection output indicative of a change in the sound waves received by the receiver from the transmitter sufficient to expect that an access disconnection of one of the arterial line and venous lines has occurred. | 06-28-2012 |
| 20120172781 | METHOD OF RESUSCITATION - This disclosure presents a method and apparatus to perfuse heart and/or other organs with a resuscitation fluid to replace blood circulation in the vascular system to resuscitate cardiac arrest patient. | 07-05-2012 |
| 20120283617 | Arteriovenous Access Valve System and Process - An arteriovenous graft system is described. The arteriovenous graft system includes an arteriovenous graft that is well suited for use during hemodialysis. In order to minimize or prevent arterial steal, at least one valve device is positioned at the arterial end of the arteriovenous graft. In one embodiment, for instance, the arteriovenous graft system includes a first valve device positioned at the arterial end and a second valve device positioned at the venous end. In one embodiment, the valve devices may include an inflatable balloon that, when inflated, constricts and closes off the arteriovenous graft. If desired, a single actuator can be used to open and close both valve devices. | 11-08-2012 |
| 20120283618 | Method of Inducing Cellular Growth and Materials for Use Therewith - The present invention relates generally to a method of producing a population of cells and materials for use therewith. More particularly, the present invention is directed to a method of generating the growth of a population of blood-derived cells and materials for use therewith. The method of the present invention facilitates cell growth by virtue of the migration of blood-derived cells from the vasculature of a vascularised receptacle to the acellular tissue support matrix of said receptacle. These findings have now facilitated the design of means for reliably and efficiently deriving cellular populations from blood-derived cells, such as the generation of bone marrow cells including haemopoietic stem cells and mesenchymal stem cells, for use in a wide variety of clinical and research settings. The method of the present invention is particularly useful for the therapeutic or prophylactic treatment of a range of conditions via the administration of the cells generated in accordance with the method of the present invention. | 11-08-2012 |
| 20130012861 | DEVICE AND METHOD FOR MONITORING A VASCULAR ACCESS FOR AN EXTRACORPOREAL BLOOD TREATMENT - A device and method for monitoring an access to a patient for an extracorporeal blood treatment apparatus with an extracorporeal blood circuit are described, as well as an extracorporeal blood treatment apparatus with a device for monitoring the vascular access. The device and method are based on the monitoring of a characteristic property of the blood, in particular the concentration of haemoglobin in the blood flowing in the arterial blood line of extracorporeal blood circuit I of an extracorporeal blood treatment apparatus A. In the event of an incorrect vascular access, the flow conditions change in the communicating intra- and extracorporeal blood circulation system. These changes in the flow conditions can be detected as a change in the haemoglobin concentration. A disconnection of venous puncture cannula for the patient access is ascertained by a reduction in the haemoglobin concentration in the blood in arterial blood line. | 01-10-2013 |
| 20130030348 | MEDICAL PORT, BLOOD HOSE FOR USE IN AN EXTRACORPOREAL BLOOD TREATMENT AS WELL AS MEDICAL TREATMENT APPRATUS - A medical port includes a main channel with a lumen to conduct a first fluid through the port, a secondary channel aperture of a secondary channel to add a second fluid in the main channel, at least one housing element and at least one actuation element arranged to be transferable relative to the housing element from a first position into a second position, a seal section, which is arranged to be rotatable between a first position of the seal section, in which the seal section does not close, seal or cover the secondary channel aperture and a second position of the seal section, in which the seal section closes, seals or covers the secondary channel aperture, when the actuation element is transferred from the first position to the second position. A blood hose including at least one port, and a medical treatment apparatus are also described. | 01-31-2013 |
| 20130035627 | DEVICE AND METHOD FOR FIXING A SEGMENT OF TUBING, FOR AN ARRANGEMENT FOR MONITORING AN ACCESS TO A PATIENT - A device for fixing a segment of tubing in the form of a loop, for an apparatus by which a fluid is fed to or out from a patient via tubing, in particular for monitoring vascular access in extra-corporeal blood treatment, and a tubing and an arrangement for monitoring, each having the device for fixing the segment, are also described. The fixing of the segment includes a guiding piece and a securing piece. The guiding piece fixes intersecting portions of the segment which forms an eye, thereby forming a loop which contracts under a tractive stress. The securing piece fixes a portion of the segment forming the eye such that when the loop tightens, that portion of the segment does not slip through the guiding piece. Alternatively, intersecting portions of the segment are fixed in a loop only by a guiding piece formed as an annular body. | 02-07-2013 |
| 20130053753 | CATHETER TIP - Catheters and their uses for vascular access to a patient are described. The catheter comprises an arterial lumen and a venous lumen which run along the shaft of the catheter for most of the length. Near the catheter tip, the two lumens can twist around the longitudinal axis of the catheter. The catheter shaft has two openings, one where the arterial lumen begins the twist and another about 180 degrees into the twist. The catheter shaft also contains an opening for the venous lumen near the nose of the catheter shaft. The orientation of the arterial lumen opening on opposite sides of the shaft eliminates the possibility of side port occlusions since the catheter can't be pressed against a vessel wall that blocks both suction openings simultaneously. And using these openings at each point reduces the chance of occlusion due to blood clots and fibrin sheaths. Other embodiments are described. | 02-28-2013 |
| 20130053754 | DEVICE FOR DETECTING MOISTURE FOR USE WITH A DEVICE FOR MONITORING AN ACCESS TO A PATIENT, IN PARTICULAR FOR MONITORING THE VASCULAR ACCESS IN AN EXTRACORPOREAL BLOOD TREATMENT - A device for detecting moisture for use with a device for monitoring an access to a patient for an extracorporeal blood treatment apparatus is described. The device for detecting moisture is constituted as a two-dimensionally extending fabric to be placed on the patient's skin, having an electrically conductive structure as a moisture sensor and constituted by non-conductive and conductive warp and weft threads configured to produce in the woven fabric a defined electrically conductive structure through spatial separation of the warp and weft threads. By the use of conductive warp and weft threads, an electrically conductive structure can be constituted having sections running in different directions, thereby creating a moisture sensor exhibiting a particularly high degree of sensitivity. The electrically conductive structure is preferably terminated with a terminating resistor, preferably not a component part but rather part of a connection part of the device, so that production is simplified. | 02-28-2013 |
| 20130072847 | IMPLANTED ACCESS PORT - Implantable access port for removal and/or return of fluids to a patient, comprising an internal conduit connectable at its proximal end to the access port and at its distal end to a vascular structure of the patient; an external conduit connectable at its proximal end to the access port and at its distal end to an extracorporeal device; and a transcutaneous coupling member destined to be anchored in a tissue of the patient and comprising a first valve system operable to be in an open or closed configuration; the coupling member further comprises a second valve system removably connectable to the first valve system and operable to be in an open or closed configuration, such as to establish fluid communication between the internal and external conduits when the first and second valve systems are connected and in open configuration. | 03-21-2013 |
| 20130079697 | SYSTEMS AND METHODS FOR LIMB TREATMENT - A method of delivering a medicament to a limb of a patient body includes isolating a circulatory system of the limb from a circulatory system of the patient body, wherein the limb circulatory system is substantially all limb arteries and substantially all limb veins located between an isolation region and an end of the limb. A perfusion catheter is inserted into a limb artery in an antegrade position, while a collection catheter is inserted into a limb vein in a retrograde position. The blood flow of the limb circulatory system is then circulated by collecting the blood flow with the collection catheter and delivering the blood flow with the perfusion catheter. A medicament is perfused into the limb circulatory system with the perfusion catheter. | 03-28-2013 |
| 20130079698 | METHOD OF INITIALISING AN APPARATUS FOR BLOOD TREATMENT IN THE SINGLE-NEEDLE MODE AND APPARATUS FOR BLOOD TREATMENT IN THE SINGLE-NEEDLE MODE - An apparatus and method for blood treatment for the single-needle mode, the apparatus having an extra-corporeal blood circuit with a blood infeed line running to the inlet and a blood return line leading away from the outlet, of a blood treating unit, includes in the blood return line a device, e.g., container, for amassing blood, which is in flow-permitting connection for gas transfer with a device, e.g., container, for storing gas. A pressure is calculated and set in the device for storing gas before the arterial and venous phases are started, with two constraints. First, the pressure should be sufficiently low to ensure both no infusion of air into the patient and also regulated flow of blood into the patient even at opposing pressures lower than ambient pressure. Second, the pressure should be sufficiently high to expel blood from the device for amassing blood into the device for storing gas. | 03-28-2013 |
| 20130085437 | CATHETER WITH ARTICULABLE SEPTUM EXTENSION - A catheter includes an elongated tubular body including a first wall and second wall defining first and second lumens, respectively. Each wall extends to a distal end and defines a distal opening. The first and second walls may each include one or more side openings disposed proximal of the distal end. The first and second lumens are separated by a septum. The septum includes a septum extension extending distally from the septum. The septum extension is adapted to articulate relative to the septum in response to fluid flow into and out of the distal openings of the first and second lumens. The septum extension is dimensioned to partially obstruct fluid flow into the catheter through one of the distal openings upon the articulation of the septum extension. | 04-04-2013 |
| 20130085438 | HEMODIALYSIS CATHETER WITH IMPROVED SIDE OPENING DESIGN - A hemodialysis catheter is provided which includes a catheter body having a proximal and a distal end and defining at least one lumen. The at least one lumen includes a distal opening and a side opening formed through a sidewall of the catheter body. The side opening communicates with the at least one lumen, and includes guiding structure positioned adjacent a distal side of the side opening configured to smoothly redirect blood flow into the at least one lumen. The guiding structure may be defined by a raised wall, or in the alternative, an angled distal wall of the side opening. | 04-04-2013 |
| 20130150769 | DEVICE FOR DETECTING MOISTURE, FOR USE WITH AN ARRANGEMENT FOR MONITORING AN ACCESS TO A PATIENT - The present invention relates to a moisture detection system which takes the form of a covering to be applied to the patient's skin, and to a monitoring system for monitoring a vascular access for a blood-treating apparatus. The covering of the moisture detection system has a flexible substrate material to which an electrically conductive structure having printed conductors is applied as a moisture sensor. In accordance with one aspect of the present invention, because a terminating resistor is not part of a moisture detection system, the device can be inexpensively produced in large quantities. This is of advantage in that the moisture detection system is generally intended for once-only use. With the separate terminating resistor, there is no risk of the terminating resistor being damaged or its resistance changing due to movements on the part of the patient. | 06-13-2013 |
| 20130197420 | NANOPOROUS MEMBRANES, DEVICES, AND METHODS FOR RESPIRATORY GAS EXCHANGE - One aspect of the present invention relates to a silicon nanoporous membrane for oxygenating blood. The nanoporous membrane includes a first major surface, a second major surface, and a plurality of pores extending between the first and second major surfaces. The first major surface is for contacting a gas. The second major surface is for contacting blood and is oppositely disposed from said first major surface. The first and second major surfaces define a membrane thickness. Each of the pores is defined by a length, a width, and a height. Each of the pores is separated by a uniform interpore distance. | 08-01-2013 |
| 20130274645 | DEVICE FOR SUPPORTING THE HEART AND CIRCULATORY SYSTEM - The present invention relates to a device for circulating a body fluid in a body of a living organism, especially to support the heart and/or circulation of the living organism, comprising a catheter device which has at least one inlet portion to take up the body fluid at at least one first location within the body of the living organism, at least one outlet portion some distance from the at least one inlet portion to discharge the body fluid at at least one second location some distance from the at least one first location within the body of the living organism and a pump device for directed transport of the body fluid between the at least one inlet portion and the at least one outlet portion of the catheter device; and a valve arrangement coupled to the catheter device for controlled uptake of the body fluid as a function of operation of the pump device at the at least one inlet portion of the catheter device and controlled discharge of the body fluid at the at least one outlet portion of the catheter device. | 10-17-2013 |
| 20130303966 | CATHETER SYSTEM WITH ATTACHABLE CATHETER HUB - A hemodialysis catheter assembly adapted for use in a subcutaneous tunneling procedure incorporates a mechanism for securing the catheter hub member to the elongated catheter, and to provide the requisite fluid communication between fluid passages within the hub and the catheter lumens within the catheter. The catheter hub member may be connected to the elongated catheter after implantation of the catheter via a subcutaneous tunneling procedure. | 11-14-2013 |
| 20130324901 | Transvascular Access Methods - Various methods employing transvascular access devices are described, including a method of placing a central catheter in a peripheral vein in an arm of a patient; a method of providing percutaneous access to the heart of a patient; a method of clearing a clotted arteriovenous dialysis graft; a method of creating multiple access points into a single blood vessel; a method of creating an AV fistula in a patient; and a method of providing a bypass to a blockage in a popliteal artery in a patient. | 12-05-2013 |
| 20130338562 | NEEDLELESS DIALYSIS GRAFT - A needleless dialysis graft device eliminates the need to use needles during the dialysis process. The device of the present invention can be implanted into a dialysis patient, allowing the patient to be treated instantly, effortlessly and without pain. The device includes a tubing, placed under the skin that attaches on one side to an artery and on the other side to a vein. An access opening can be fluidly connected to each side of the device and may penetrate to the outside of the skin. The snap caps can be removed from both openings the compression lines are attached, then the locking mechanism is then twisted open to begin blood flow. Once dialysis is completed, the locking cap can be twisted shut, the compression lines removed, and the snap caps replaced on the access openings, saving the time waiting for clotting as is needed with conventional methods. | 12-19-2013 |
| 20140012176 | MULTI-CONNECTOR AND MEDICAL DEVICE FOR EXTRACORPOREAL BLOOD TREATMENT - Multi-connectors are disclosed for arranging a tubing segment and feeding/discharging lines of an extracorporeal blood circulation on a tube roller pump, the multi-connectors including a base and connectors for connecting the tubing segment to the feeding/discharging lines. A first connector includes a convex contour. The multi-connectors may be arranged on a medical device pump housing having a bearing surface and a rotor within the bearing surface, wherein a tube can be introduced between the bearing surface and the rotor and blood can be fed/discharged via feeding/discharging lines. A concave receiving portion is provided for the first connector, forming a pivot bearing to pivot the multi-connector. Pump housing means for locking adapted to interact with multi-connector means for locking are provided so the multi-connector can be detachably fastened. | 01-09-2014 |
| 20140088484 | ACOUSTIC ACCESS DISCONNECTION SYSTEMS AND METHODS - An access disconnection system includes a blood treatment machine including a housing, an access site detection housing separate from the blood treatment machine housing, a transmitter positioned in the access site housing and configured to transmit an ultrasound wave into a blood stream of a patient, a receiver positioned in the access site housing and configured to receive a reflection of the ultrasound wave from the blood stream of the patient; and electronic circuitry in communication with the transmitter and the receiver. The electronic circuitry is supported by the access site detection housing, and the transmitter is configured to send a wireless disconnection output to the blood treatment machine. The disconnection output is indicative of a change in the reflected ultrasound wave received by the receiver sufficient to expect that an access disconnection of one of the arterial line and the venous line has occurred. | 03-27-2014 |
| 20140100508 | HYBRID ARTERIOVENOUS SHUNT - An apparatus for positioning a graft and catheter operable for subcutaneous access to the vascular system of a patient. A surgically created, hybrid arteriovenous shunt is provided which comprises a flexible graft and a venous outflow catheter connected to the graft via surgical anastomosis over a cuff. The graft is connected to an arterial source and then to a single lumen venous outflow catheter which deposits dialyzed blood directly into the heart at the right atrium. Methods of surgical placement and performing hemodialysis using embodiments of the apparatus are provided. | 04-10-2014 |
| 20140100509 | DIALYSIS CATHETER - A dialysis catheter including a first portion having an outer wall having a first diameter, an elongated distal portion having a second diameter smaller than the first diameter, and a transition region between the first portion and distal portion. A first longitudinally extending venous lumen is configured to deliver blood. First and second independent longitudinally extending arterial lumens are configured to withdraw blood from a patient. The venous lumen and arterial lumen have first and second regions each positioned a first distance from the outer wall of the catheter and a third region positioned a second shorter distance from the outer wall of the catheter to form an arch shaped wall portion progressively increasing in thickness from the third region toward the first region and from the third region to the second region. | 04-10-2014 |
| 20140100510 | ANASTOMOTIC CONNECTOR - An anastomotic connector comprises a generally tubular access port having a first end and a second end, a generally tubular main body portion having a first end and a second end, wherein the second end of the main body portion is positioned adjacent to the second end of the access port such that the main body portion and access port are in fluid communication, and an anchor member received, within the access port and having a plurality of fingers that are extendable from the first end thereof. The fingers of the anchor member are movable between a loaded position wherein the fingers are substantially parallel to a center axis of the access port and an expanded position wherein the fingers are substantially perpendicular to the center axis of the access port. | 04-10-2014 |
| 20140128792 | HEMODIALYSIS ACCESS PORT AND CLEANING SYSTEM - An embodiment in accordance with the present invention provides a device and method for hemodialysis including a needle access port having a housing defining a septum, wherein the septum is configured for needle access. Generally, the needle access port will have three septa for communication with valves configured to be anastomosed to a large-diameter blood vessel. The valves are in fluid communication with a flow of blood through the large-diameter blood vessel. The device also includes an elongate tube having a first and a second elongate lumen, wherein a first end of the tube is coupled to the needle access port and a second end of the tube is coupled to the valve. The device can be cleaned by injecting a cleaning fluid into a first septum of the needle access port and extracting it though the second septum of the needle access port. | 05-08-2014 |
| 20140155801 | ADJUSTABLE-LENGTH DUAL-LUMEN HEMODIALYSIS CATHETER AND A METHOD FOR ITS USE - The present adjustable-length dual-lumen hemodialysis catheter can eliminate the need to stock various lengths of hemodialysis catheters and can provide a hemodialysis catheter, which can be trimmed to various lengths in order to precisely accommodate patients of various shapes and sizes. Specifically, the present adjustable-length dual-lumen hemodialysis catheter can comprise a cuff ring assembly, which can be secured at selected locations along the trailing limbs of the catheter allowing the cuff ring assembly to be installed in a location chosen to precisely fit a particular patient. | 06-05-2014 |
| 20140155802 | CATHETER - A catheter comprising a dual lumen catheter tube with a molded plastic bolus formed at the distal end of the tube. The tube and bolus assembly which results has arterial and venous ports which overlap each other longitudinally but are oriented on opposite sides of the tube and bolus assembly. | 06-05-2014 |
| 20140221898 | CURVED TIP HEMODIALYSIS CATHETER - A hemodialysis catheter for use within a vein of a patient includes a catheter body having a proximal end when positioned within and relative to the vein. The catheter body defines an arterial lumen and a venous lumen. The catheter body is shaped with a curved tip which has a distal end. The venous lumen is truncated at a location between the proximal end of the catheter body and the distal end of the curved tip. The truncated location of the venous lumen defines an out-flow opening. The distal end of the curved tip defines an in-flow opening which corresponds to the arterial lumen. The vein has a blood flow direction and the in-flow opening faces the blood flow direction. | 08-07-2014 |
| 20140236063 | ARTERIOVENOUS ACCESS VALVE SYSTEM AND PROCESS - In accordance with certain aspects of the present disclosure, a subcutaneous arteriovenous graft system is described. The system includes an arteriovenous graft having an arterial end and an opposite venous end, at least one of the arterial end and venous end including a support frame. The system further includes a first valve device positioned at the arterial end of the arteriovenous graft and a second valve device positioned at the venous end of the arteriovenous graft and an actuator in communication with both the first valve device and the second valve device, the actuator being configured to cause each valve device to open or close simultaneously. | 08-21-2014 |
| 20140276326 | CONNECTION SYSTEM FOR CREATING A CONNECTION CHANNEL FOR BODILY FLUIDS - A connection system for creating a vascular cannula for connection to a blood vessel includes a flexible hose element in the form of a graft, a conduit element and, disposed therebetween, a connecting element extablishing fluid-tight connections, wherein a retaining element is equipped with a radially outwardly elastically beadable snap ring, which, in the connected state, can be snapped in behind a detent surface of one of the parts of the connection system. | 09-18-2014 |
| 20140276327 | HYDRAULICALLY CONTROLLED ARTERIAL/VENOUS ACCESS - Apparatus and methods for hydraulically controlled arterial/venous access are provided. The apparatus and methods may include tubing anastomized to a conduit. A clamp may be positioned over the tubing. The clamp may seal the tubing. The clamp may be configured to unseal the tubing. The clamp may be positioned to seal the tubing such that outer walls of the tubing are compressed flush with each other. The tubing may include an inner lumen and an outer lumen. The outer lumen may terminate in a balloon. The inner lumen may include a compressible portion near the anastomosis site. The inner lumen may include a non-compressible portion. The balloon may encircle at least part of the non-compressible portion. A reservoir may be configured to control an opening or closing of the clamp. When the inner lumen is open, fluid may flow from the conduit to the reservoir. | 09-18-2014 |
| 20150328389 | Device for Detecting Moisture for Use With A Device for Monitoring An Access to A Patient, In Particular For Monitoring the Vascular Access In An Extracorporeal Blood Treatment - A device for detecting moisture for use with a device for monitoring an access to a patient for an extracorporeal blood treatment apparatus is described. The device for detecting moisture is constituted as a two-dimensionally extending fabric to be placed on the patient's skin, having an electrically conductive structure as a moisture sensor and constituted by non-conductive and conductive warp and weft threads configured to produce in the woven fabric a defined electrically conductive structure through spatial separation of the warp and weft threads. By the use of conductive warp and weft threads, an electrically conductive structure can be constituted having sections running in different directions, thereby creating a moisture sensor exhibiting a particularly high degree of sensitivity. The electrically conductive structure is preferably terminated with a terminating resistor, preferably not a component part but rather part of a connection part of the device, so that production is simplified. | 11-19-2015 |
| 20150335810 | SPLITABLE TIP CATHETER WITH BIORESORBABLE ADHESIVE - Splitable-tip catheters are disclosed with bioresorbable adhesive to provide spatial separation of distal tip elements during use. The invention can be particularly useful in hemodialysis applications where it is desirable to separate blood extraction and return lumens. The adhesive facilitates insertion of the distal end of the catheter as an assembly, e.g., into a blood vessel using a single guidewire, while the bioresorbable nature of the adhesive allows the tip elements to separate in vivo. | 11-26-2015 |
| 20160030658 | Systems and Methods for Detecting Vascular Access Disconnection - A system for detecting whether a vascular access has been interrupted in an arrangement in which two catheters or needles are present in a blood vessel, fistula or graft. A fluid line leading to a pump is connected via a first connector to a first indwelling catheter, and a fluid line leading from a pump is connected via a second connector to a second indwelling catheter. Each connector is equipped with an electrode in contact with the lumen of the connector, the electrodes electrically connected to an electronic circuit that measures the impedance or conductivity of fluid between the first connector and second connectors via a fluid path through the blood vessel, fistula or graft. An electronic controller receives the impedance or conductivity data and processes the data to determine whether a vascular access disconnection has occurred. The processing may involve filtering the signal received by the controller, and/or setting provisional flags for a disconnection event that may be cleared if the signal changes before the expiration of a counter. | 02-04-2016 |
| 20160038715 | DIALYSIS CATHETER - A dialysis catheter including a first portion having an outer wall having a first diameter, an elongated distal portion having a second diameter smaller than the first diameter, and a transition region between the first portion and distal portion. A first longitudinally extending venous lumen is configured to deliver blood. First and second independent longitudinally extending arterial lumens are configured to withdraw blood from a patient. The venous lumen and arterial lumen have first and second regions each positioned a first distance from the outer wall of the catheter and a third region positioned a second shorter distance from the outer wall of the catheter to form an arch shaped wall portion progressively increasing in thickness from the third region toward the first region and from the third region to the second region. | 02-11-2016 |
| 20160175513 | Localized Therapy Delivery and Local Organ Protection | 06-23-2016 |
