| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 604247000 | Having fluid responsive means (e.g., check valve, etc.) | 84 |
| 20080215014 | Manually activated flow/no flow medical slit valves and related methods - Slit valve technology is disclosed comprising medical slit valves and related methodology, the slit valves being either normally open or normally closed. A slit or slits are disposed in membranes or diaphragms spanning across the lumen of a cannula of elastomeric material with memory. Each slit valve is closed and opened by manual manipulation of an external actuator radially disposed outside the cannula. The elastomeric cannula are shown to be in the shape of a sleeve, which is connected to a housing of a medical valve assembly, although the present invention is not so limited. | 09-04-2008 |
| 20080262441 | INFUSION STATUS INDICATOR - An infusion status indicator disposed in the medical infusion line includes a housing with an opening through which the status of the infusion may be determined. A flexible membrane is located at the opening to indicate the status of fluid in the cavity. A recessed flexible membrane indicates insufficient flow of medical fluid into the cavity from the fluid supply, a level flexible membrane indicates correct flow of fluid through the indicator, and a concave flexible membrane indicates an insufficient flow of medical fluid out of the cavity, possibly indicating an occlusion of the fluid line downstream of the indicator. Check valves may be included upstream and downstream of the cavity so that a bolus of fluid may be forced out of the cavity to the patient by pressing the flexible membrane into the cavity. | 10-23-2008 |
| 20080287887 | Pump Module For Use In A Medical Fluid Dispensing System - A pump module for use in a medical fluid dispensing system is provided that includes a pump body and first and second pump chambers formed in the pump body. The module further includes a pair of chamber inlets and chamber outlets formed in the pump body, each associated with one of the pump chambers. Each of the pump chambers further includes a first portion having a generally spherical segment shape and a second portion integral with the first portion and having a generally conical shape, with the first and second portions in fluid communication with the chamber inlet and the chamber outlet. The second, conically shaped portion converges to the chamber outlet. | 11-20-2008 |
| 20090018513 | Flow Control Apparatus And Medical Injection Circuit Using The Same - A flow control apparatus | 01-15-2009 |
| 20090093774 | AMBULATORY PUMP WITH INTELLIGENT FLOW CONTROL - The present invention includes an ambulatory medical fluid delivery system, which may comprise a fluid flow path for communicating between a source and a patient. The system may also comprise a reusable controller, which may be operable to control fluid flow in the path and include a module interface station, and a disposable fluid flow delivery set, which may include a flow control module adapted to be removably received by the module interface station. Such flow control module may include a flow valve which is operably associated with the path. Such valve may be operably controlled by the reusable controller in response to sensed flow rates of fluid flow in such path. The present invention may alternatively include an ambulatory reusable controller that is provided for use with a disposable medical fluid flow delivery set. The present invention may further alternatively include a differential pressure sensing device. | 04-09-2009 |
| 20090105665 | Drip infusion IV catheter check cover set - A check sealing set of intravenous injection catheter for drip infusion to seal up a needle retained in human body includes a check body, a locking seat, and a mobile cover; the check body related to an arc body provided with a retaining edge and a check seam disposed below the retaining edge; the locking seat related to a tube seat having on one end disposed with a locking slot and a groove on its outer circumference; the mobile cover has its neck ring to engage the groove of the locking seat so to merely cover up an exposed end of the locking seat; the check set is connected to an IV set when assembled with a terminal of the IV catheter for preventing blood from flowing back to a tube (it is impossible for the prior art of drip infusion to provide the check purpose); the tube is plugged off when the drip infusion is not required for the check cover to serve a protection cover to allow direct insertion through a rubber pad if subsequent drip infusion or adding medicine into the fluid, thus to avoid repeated penetration of the catheter due to peripheral IV site failure and solve the problem of storage of the catheter cover when removed. | 04-23-2009 |
| 20090124983 | Biomedical line union device for administering pharmacological substances - A biomedical line union device for administering pharmacological substances, comprising a union body with: at least one main duct thereinside, provided with at least one outlet associated with a conveyance line or with a closed container, and at least one branch duct, provided with at least one branching port associated with a line for administering a pharmacological substance and connected to the main duct by at least one connecting port. The device comprises at least one valve element, arranged proximate to the connecting port and movable between a closed configuration, in which it interrupts the connection between the branch duct and the main duct, and an open configuration, in which it provides the connection between the branch duct and the main duct due to an overpressure within the branch duct with respect to the pressure within the main duct, and vice versa. | 05-14-2009 |
| 20090149820 | CARDIOVASCULAR ACCESS CATHETER WITH SLIT VALVE - Two-way, three-position and one-way, two-position slit valves in cardiovascular access catheters with closed distal ends have slit geometries configured to overcome adhesion between opposed abutting slit faces, when pressure differentials are applied between the interior and the exterior of the catheter. Portions of the slit are oriented at a non-zero angle relative to the longitudinal axis of the catheter causing shear forces to be generated in abutting slit faces. Shear forces arise from tangential, radial, or longitudinal stresses generated in the catheter body. Slit geometries are planar or curved or include multiple end-to-end connected slit subsections. If a slit partially circumscribes a portion of the adjacent outer wall of the catheter body, restraint to outward and inward movement on that portion is reduced. Slit valves are configured to open inwardly to aspirate fluids, to open outwardly to infuse fluids, or both. | 06-11-2009 |
| 20090187152 | ANTI-MICROBIAL CATHETER - A catheter having features configured to provide a substantially uniform flow rate of a fluid exiting the catheter and also exhibits anti-microbial properties. The uniform flow rate features may include one or more of a flow restricting membrane or flow restricting component within an infusion section of the catheter. In other arrangements, exit holes defining the infusion section of the catheter may be configured to provide the desired uniform flow rate over the length of the infusion section. Furthermore, the catheter also includes anti-microbial properties to inhibit the growth of microbes on or within the catheter and, preferably, to inhibit microbe growth in an anatomical region surrounding the catheter. The desired anti-microbial properties may be provided by an anti-microbial layer, anti-microbial materials dispersed within the material from which components of the catheters are constructed, or a combination of anti-microbial layers and embedded anti-microbial materials. In some arrangements, one or more portions of the catheter may be bio-absorbable. | 07-23-2009 |
| 20090254049 | SYSTEMS AND METHODS FOR PROVIDING AN AUTOMATIC OCCULSION DEVICE - An auto-occlusion safety device is provided for use in preventing rupture of infusion components during rapid infusion procedures. An occlusion valve is disclosed having a threshold pressure that is less than a rupture tolerance of the infusion system components. As the fluid pressure of the infusion system increases beyond the threshold pressure of the occlusion valve, the occlusion valve is automatically activated thereby occluding fluid flow upstream from a vulnerable infusion component. An accumulator is further disclosed for use in combination with the safety device to compensate for time delays in full activation of the occlusion valve. | 10-08-2009 |
| 20090264832 | PRESSURE ACTUATED FLOW CONTROL VALVE - A pressure actuated flow control valve for an infusion catheter permits gravity flow of a liquid through the catheter and into a patient while resisting back flow of blood from the patient and into the catheter. The valve has a hemispherical body with an outstanding circumferential flange and a normally closed, diametric slit. The slit is longer on the convex outer surface than on the concave inner surface. Dome thickness diminishes in the area adjacent the slit, reducing total apical deflection upon collapse of the slit toward the concave surface. An inner orthogonal rib biases the slit closed. Upon application of a predetermined pressure, the slit opens toward the concave surface to permit forward fluid flow. At lower pressures, the slit closes to check fluid flow. Greater reverse pressure is required to collapse the slit toward the concave surface to permit reverse fluid flow. | 10-22-2009 |
| 20090326483 | Valve Assembly Including a Dissolvable Valve Member - A valve assembly is provided which includes a housing having an inlet end and an outlet end and defining a fluid channel and a central chamber. A dissolvable valve member is positioned to obstruct flow through the channel within the chamber. The dissolvable valve member is formed of a material which is dissolvable at a predetermined rate upon contact with a preselected fluid. The preselected fluid is selected from the group consisting of blood, urine, saline and antimicrobial solutions. The dissolvable valve member can be formed from a fluid soluble glass or a starch based material. | 12-31-2009 |
| 20100036327 | FLOW PREVENTION, REGULATION, AND SAFETY DEVICES AND RELATED METHODS - A football-shaped blockage within a vessel lumen designed to prevent any flow material from passing through the vessel lumen when suction is applied below the blockage or when the flow material pressure is below a given value, and further designed to allow flow when the flow material pressure increases above the given value by allowing the vessel lumen walls to expand around the football-shaped blockage or, alternately, to allow the football-shaped blockage to collapse in response to the increased pressure. A series of compressible members contained within the vessel lumen may also be coupled with the above mentioned blockage device to limit the flow rate beyond the given value. The compressible members are designed to partially restrict flow so as to initially allow for only moderate increases in flow rate with respect to flow material pressure, but with a pressure above a second given material pressure, greater increases in flow rate are allowed. | 02-11-2010 |
| 20100036328 | PRESSURE ACTUATED FLOW CONTROL VALVE - A pressure actuated flow control valve for an infusion catheter permits gravity flow of a liquid through the catheter and into a patient while resisting back flow of blood from the patient and into the catheter. The valve has a hemispherical body with an outstanding circumferential flange and a normally closed, diametric slit. The slit is longer on the convex outer surface than on the concave inner surface. Dome thickness diminishes in the area adjacent the slit, reducing total apical deflection upon collapse of the slit toward the concave surface. An inner orthogonal rib biases the slit closed. Upon application of a predetermined pressure, the slit opens toward the concave surface to permit forward fluid flow. At lower pressures, the slit closes to check fluid flow. Greater reverse pressure is required to collapse the slit toward the concave surface to permit reverse fluid flow. | 02-11-2010 |
| 20100057015 | MEDICINAL LIQUID SUPPLY APPARATUS HAVING FIXED-TYPE MEDICINAL LIQUID SUPPLY VOLUME CONTROLLER AND ARBITRARY MEDICINAL LIQUID SUPPLY VOLUME CONTROLLER - Disclosed therein is a medicinal liquid supply apparatus, which includes a fixed-type medicinal liquid supply volume controller adapted to supply medicinal liquid only as much as a paramedic sets and fixes and an arbitrary medicinal liquid supply volume controller adapted to allow a patient or the third party to arbitrarily supply the medicinal liquid as occasion demands during the paramedic's absence, thereby effectively supplying the medicinal liquid according to the patient's disease and pain conditions. The medicinal liquid supply apparatus includes: a fixed-type medicinal liquid supply volume controller having a plurality of medicinal liquid branch hoses opened and closed by a controller and a medicinal liquid transfer hose always opened, the medicinal liquid branch hoses and the medicinal liquid transfer hose being connected to an inflow part and an outflow part of a medicinal liquid control line thereof; and an arbitrary medicinal liquid supply volume controller connected to a double medicinal liquid hose having a branch tube connected to the medicinal liquid transfer hose of the fixed-type medicinal liquid supply volume controller, the arbitrary medicinal liquid supply volume controller having a medicinal liquid storing tube for storing the medicinal liquid transferred through the double medicinal liquid hose to arbitrarily and additionally supply the medicinal liquid by a button body. | 03-04-2010 |
| 20100152680 | ONE-WAY VALVE, ESPECIALLY LOW PRESSURE CHECK VALVE FOR USE IN THE MEDICAL TECHNIQUE - One-way valve, especially low-pressure check valve, for use in the medical technology, having a housing consisting of an inlet half and an outlet half and having an inlet channel and an outlet channel with a diaphragm being positioned in a pressure space which is contacting an annular valve seat under pre-tension which is opening into the outlet channel. The pressure space is consisting of two pressure chambers. In the direction of flow before the closing mechanism formed by the valve seat and the diaphragm a second valve mechanism is provided which is opening in the same sense with the first closing mechanism at an over-pressure in the entry channel and which is closing at an over-pressure in the exit channel. | 06-17-2010 |
| 20100191192 | Three-way Valve for Power Injection in Vascular Access Devices - An apparatus for facilitating fluid flow between an internal body structure and a device external to the body comprises a housing having proximal and distal chambers separated from one another by a wall and fluidly connected to proximal port and distal ports. The wall includes a valve selectively sealing first and second openings thereof and a canopy biased toward a sealing position sealingly surrounding the first opening. The bias of the canopy is set to define a first pressure differential at which the canopy is moved out of the sealing position to permit fluid transfer therepast in a first direction. A duck-bill stem extends through the second opening and includes a lumen extending therethrough with walls of the stem being biased toward a sealing position and configured so that, when a second pressure differential is applied at at least a second level, the first end opens to permit flow therepast. | 07-29-2010 |
| 20100204661 | LEAF SPRING VALVE AND CONE MEMBRANE VALVE - A delivery device and a method for administering a fluid from a fluid reservoir, wherein an unintended free flow of the fluid from the reservoir to a recipient is reliably prevented, are disclosed. The delivery device has a tank for the fluid; a fluid delivery device which delivers the fluid from the tank; a valve body providing an input hole and an output hole; and an infusion set in order to guide the fluid from the tank to a distal end of the delivery device. The delivery device further provides a shutter assembly which is or can be mounted to the valve body and prevents the fluid from flowing inside the infusion set when the fluid exhibits a pressure which is lower than a predefined pressure. | 08-12-2010 |
| 20100211020 | LUER-TYPE NEEDLE-FREE VALVE FITTING WITH BYPASS - Embodiments of luer-type needle-free valve devices are disclosed. One of the novel aspects of the invention is its ability to transform from an open state to a closed state. The open position eliminates the potential for a differential pressure to exist between the volume connected to the inlet and outlet of the valve fitting. The closed position enables the device to maintain a differential pressure between the volume connected to the inlet and outlet of the valve fitting. The invention is useful in manufacturing sterile medical devices by allowing all surfaces to communicate with the sterilizing agent when the valve is in an open configuration when it is in a closed position. | 08-19-2010 |
| 20100211021 | Self Service Cleaning Device for Woman - The present invention relates to a self service cleaning device for woman comprising a handle and a flexible conduit. The handle has a connector at its one end and is removably connected with a water supply pipe by the connector. The flexible conduit has one end connected with the handle and the other end which has a curved portion with a closed top corresponding to a curvature of vagina, wherein an opening is arranged at an introverted segment of the curved portion, and a plurality of outlets are orderly arranged on a circumferential surface of the curved portion, a plurality of circular protrusions are projecting outwardly and radially from the circumferential surface; and a counterflow preventer is arranged around an inlet of the flexible conduit. The present invention is low in cost, portable, simple in use, and good in cleaning effect, whereby it is easy to promote and widely adapted for effective prevention and treatment of diseases. | 08-19-2010 |
| 20100249723 | MEDICAL CONNECTORS AND METHODS OF USE - Some embodiments disclosed herein relate to a medical connector having a backflow resistance module configured to prevent fluid from being drawn into the connector when a backflow inducing event occurs. In some embodiments, the backflow resistance module can include a variable-volume chamber configured to change in volume in response to a backflow-inducing event and a check valve configured to resist backflow. In some embodiments, the medical connector can include a fluid diverter configured to direct fluid flowing through the medical connector into the variable volume chamber to prevent fluid stagnation therein. In some embodiments, the medical connector includes a body member, a base member, a seal member, a support member, and a valve member. | 09-30-2010 |
| 20100298782 | INTRAVASCULAR VALVE COMPONENT WITH IMPROVED VALVE POSITIONING - An intravascular valve component broadly includes a valve case and a flexible pressure-actuated flow control valve. The valve case includes attached proximal and distal case portions that present respective spaced apart fluid ports and a fluid passageway extending between the ports. The flexible pressure-actuated flow control valve is disposed within the fluid passageway and includes a slitted central valve wall and an annular flange surrounding the central valve wall. The annular flange includes a radially-extending flange wall and a projection extending axially from the flange wall, with the projection engaging one of the case portions to restrict radial movement of the flow control valve relative to the valve case. | 11-25-2010 |
| 20100324505 | DEVICE FOR FLOW-THROUGH ULTRAVIOLET LIGHT DECONTAMINATION OF MICROBIAL CONTAMINANTS - A device for administering a fluid includes a sterilization cassette having a shell, a fluid chamber, and an ultraviolet light transmitting window. An input tube directs fluid into the chamber. An ultraviolet light source is positioned to direct ultraviolet light through the window into the fluid chamber at an intensity sufficient to kill or render non-reproducible at least one species of a microorganism in the fluid while the fluid is in the chamber. An outlet tube receives fluid from the cassette and directs the fluid to a destination. The fluid is substantially uniformly exposed to the light while in the chamber. The cassette and light source are contained in a housing that prevents ultraviolet light from escaping the housing. | 12-23-2010 |
| 20110054415 | Valved catheter - A valved catheter is provided which includes a slit that opens readily in both directions either when a fluid is caused to flow from the interior to the exterior thereof or when a fluid is caused to flow from the exterior to the interior thereof, and that prevents inadvertent closure thereof from the opened state. The valve includes an openable slit that penetrates from the inner surface to the outer surface of a distal end section of a valved catheter with a closed distal end, and edge portions on the two sides of the slit are formed along the direction in which the valved catheter extends. The slit includes a linear shape in the cross-section of the distal end section of the valved catheter that extends in a position away from a center line “c” that passes through the center of the valved catheter in parallel with this center line “c” whereupon, either one of the edge portions deforms more readily than either one of the other edge portions. | 03-03-2011 |
| 20110196314 | FLUID CONDUIT CONNECTION - A fluid conduit connector assembly includes a connector having a body with an inner surface defining a fluid channel. The connector also includes an inlet region for flow of fluid into the fluid channel, and an outlet region for flow of fluid from the fluid channel. The connector further includes an axial alignment member outward of the body, and a pair of flexible tabs arranged generally circumferentially of the alignment member and outward of the body. The connector can be configured as a day-side connector, transfer member with check valve, and/or patient-side connector. An implementation includes a day-side connector, a patient-side connector, and a transfer member, each of which has a pair of flexible tabs. The pairs of tabs are configured such that the transfer member releasably couples the day-side and patient-side connectors. A method for aseptically connecting a fluid conduit is also disclosed. | 08-11-2011 |
| 20110208128 | Safety Drug Delivery Connectors - Drug delivery connectors are provided for permitting and blocking fluid flow between a container and a catheter connector or other drug delivery site. Embodiments of the drug delivery connectors include a ball valve for forming a releasable seal within the drug delivery connectors. In one or more embodiments, the ball valve prevents fluid flow between an open proximal end and an open distal end of the drug delivery connector and is movable in a proximal direction to release the releasable seal to permit fluid flow from the open proximal direction to the open distal direction. Methods of delivering medication to a catheter connector that includes an actuator are also provided | 08-25-2011 |
| 20110208129 | PRESSURE ACTUATED CATHETER SEAL AND METHOD FOR THE SAME - A catheter includes a pressure actuated seal within a manifold. A catheter body is coupled with the manifold, and a manifold lumen and catheter lumen are configured to receive pressurized fluids. The pressure actuated seal includes a pressure actuated seal element having a seal element lumen. The seal element lumen is in communication with the manifold and catheter lumens. The pressure actuated seal element is deformable between an open configuration and a sealed configuration. In the sealed configuration, the pressurized fluid in the manifold presses on the pressure actuated seal element along a first seal face. The pressure actuated seal element compresses inwardly around the seal element lumen according to the pressure of the pressurized fluid. In the open configuration, the pressure actuated seal element relaxes in the absence of the pressurized fluid, and the seal element lumen is open and configured to allow passage of an instrument. | 08-25-2011 |
| 20110257608 | Multi-Slit High Flow Valve - A valve may include (a) a housing defining a valve lumen adapted for fluid connection with a lumen of a catheter; (b) a substantially conical valve member coupled to the housing and extending across the valve lumen to control flow therethrough; (c) a plurality of slits extending through the valve member and separated from one another circumferentially around the valve member; and (d) a ramp formed within a distal end of the valve lumen extending proximally from a distal tip of the valve member toward a ramp vertex separated from the distal tip by a predetermined distance. | 10-20-2011 |
| 20110264053 | FLOW CONTROL DEVICE FOR MEDICAL LIQUID - A flow control device for medical liquid including a housing having an inlet and an outlet, and a channel formed in an inner surface of the housing, the channel extending at least partly in axial direction; a rotatable member rotatable in relation to the housing without being axially displaced, the rotatable member having at least two apertures; and a core member arranged inside the rotatable member, fixedly connected to the rotatable member. A helical flow path is formed between the lateral surface of the core member and the inner surface of the rotatable member, the at least two apertures of the rotatable member being in communication with said helical flow path, and wherein each of the apertures debouches into the channel in at least one rotational position of the rotatable member. | 10-27-2011 |
| 20110282301 | HAEMOSTATIC VALVE ASSEMBLY - The haemostatic valve assembly ( | 11-17-2011 |
| 20110282302 | MEDICAL CONNECTORS AND METHODS OF USE - A medical connector for use in a fluid pathway includes a substantially transparent housing having a proximal end with a proximal opening and a distal end with a distal opening, and a cavity extending therebetween. The connector provides a substantially visible fluid flow path extending through a substantial portion of the connector. | 11-17-2011 |
| 20110313367 | PRESSURE RESPONSIVE SLIT VALVE ASSEMBLY FOR A PLURALITY OF FLUIDS AND USES THEREOF - A pressure responsive slit valve assembly is designed to be used in a variety of configurations of medical devices to manage contemporaneous and pressure responsive fluid communications between such devices and a plurality of fluid sources. The pressure responsive slit valve assembly of the present invention includes a valve housing adapted to receive fluids from at least two sources and a pressure responsive slit valve means corresponding to each fluid sources. | 12-22-2011 |
| 20110313368 | Pressure Activated Valve with High Flow Slit - A pressure actuated valve for controlling the flow of fluid through a medical device, the valve comprises a housing including a lumen extending therethrough and a flow control membrane extending across the lumen to control the flow of fluid through the lumen. The membrane includes a plurality of slits extending therethrough so that, when the membrane is acted upon by a pressure of at least a threshold magnitude, the slits open to permit flow through the lumen and, when not acted upon by a pressure of at least the predetermined magnitude, the slits are maintained closed by a biasing force applied thereto by the membrane to prevent flow through the lumen. Each of the slits extends between end portions thereof along a curve wherein a distance between a first end portion of a first one of the slits and a first end portion of a second one of the slits is a minimum distance between the first and second slits. | 12-22-2011 |
| 20120004623 | ONE-WAY CHECK VALVE - A one-way check valve in an IV system set is provided with structural features to capture contaminant particles and inhibit the particles from adversely impacting the performance of the check valve. A screen can be provided upstream of the valve seat and the valve may be provided with flow channels for accumulating the particles. Modifications of the valve seat provide open volumes for accumulating contaminants. | 01-05-2012 |
| 20120078197 | PORTABLE INFUSION PUMP WITH ANTI-SIPHONING PROTECTION - Described is drug infusion device with one or more check valves for inhibiting the unintentional discharge of medication from a cartridge. The device includes a chamber capable of receiving a cartridge of medication in a fluid form and one or more novel check valves for ensuring the drug is not unintentionally released due to pressure differentials between the cartridge and the ambient pressure outside of the drug infusion device. | 03-29-2012 |
| 20120089102 | Microvalve Protection Device and Method of Use for Protection Against Embolization Agent Reflux - An endovascular valve device for use in a vessel during a therapy procedure includes a catheter having at its distal end a valve. The valve is constructed of a braid of elongate first filaments coupled together at their proximal ends in a manner that the first filaments are movable relative to each other along their lengths. The first filaments have a spring bias that radially expands the valve. A filter is provided to the braid formed by electrostatically depositing or spinning polymeric second filaments onto the braided first filaments. The lumen of the catheter is in communication with the center of the valve. | 04-12-2012 |
| 20120101454 | SPLASH FREE NEEDLE ASSEMBLY - A leak preventing AV needle assembly including an AV needle, a catheter having a first end engaged with the AV needle and a second end, and a one-way valve assembly including a housing having a first end portion engaged with the second end of the catheter, and a second end portion having an opening for receiving a fluid transmission conduit, is disclosed. The valve assembly further includes an axially displaceable closure element for closing the opening in the second end portion when the second end portion is not engaged with the conduit. The needle assembly further includes an elongated housing within which is disposed a biasing element for urging the closure element away from the first end and into sealing engagement with an opening in the second end of the valve assembly housing into which a fluid transmission conduit can be inserted for fluid communication with a catheter inserted into the first end of the valve housing. The closure element can be a disk, an element with a spherical portion, or an element with a conical portion. | 04-26-2012 |
| 20120130319 | Valved Catheters Including High Flow Rate Catheters - A pressure activated two-way slit valve assembly is designed to be used in combination with, but not limited to, a high flow rate catheter to prevent accidental ingestion of air or loss of blood if the closure cap comes off during non-use of the catheter. In addition, the potential for occlusion of the catheter due to blood clots in the catheter and catheter related infection is substantially reduced. The pressure activated two-way slit valve assembly includes a first end, a second end, a wall defining a dumbbell shaped channel, and a flexible, thin disk having a slit and positioned within the pressure activated two-way slit valve assembly to reside within the dumbbell shaped channel. The slit and the dumbbell shaped channel are sized to enable the slit to deform in response to a predetermined pressure differential across the slit to allow fluid to pass therethrough. | 05-24-2012 |
| 20120165758 | SANITARY APPARATUS FOR INTESTINAL CLEANSING - A sanitary apparatus for intestinal cleansing to be attached to a water faucet (R), includes a faucet filter ( | 06-28-2012 |
| 20120179116 | Device For Preventing A Free Catheter Flow - A catheter for connecting an administering device to an administering needle, the catheter including a catheter wall, a flow region limited by the catheter wall, and at least one catheter portion at which at least one partial piece of the catheter wall abuts at least one other partial piece of the catheter wall to releaseably block or obstruct the flow of a medium through the catheter, wherein the flow is unblocked or opened when the medium exhibits a pressure above a predetermined blocking pressure. | 07-12-2012 |
| 20120215178 | PRESSURE VENTED FLUID RESERVOIR HAVING A MOVABLE SEPTUM - Disclosed herein is a fluid infusion device of the type that delivers medication fluid to the body of a patient. The device includes or cooperates with a fluid reservoir, and the device has a sealing assembly to receive and form a fluid seal with the fluid reservoir. A retractable sealing element surrounding a hollow fluid delivery needle may be used to seal a port of the fluid reservoir. The port may include a pressure vent that is sealed by the retractable sealing element. In one variation, the reservoir includes a moving valve sleeve that holds a septum. The septum moves to allow the reservoir to vent, and to form a seal with the port when the needle pierces the septum. In another variation, the device includes a needleless sealing assembly. In yet other variations, the device uses a needled fluid reservoir. | 08-23-2012 |
| 20120215179 | FLUID RESERVOIR HAVING A FLUID DELIVERY NEEDLE FOR A FLUID INFUSION DEVICE - Disclosed herein is a fluid infusion device of the type that delivers medication fluid to the body of a patient. The device includes or cooperates with a fluid reservoir, and the device has a sealing assembly to receive and form a fluid seal with the fluid reservoir. A retractable sealing element surrounding a hollow fluid delivery needle may be used to seal a port of the fluid reservoir. The port may include a pressure vent that is sealed by the retractable sealing element. In one variation, the reservoir includes a moving valve sleeve that holds a septum. The septum moves to allow the reservoir to vent, and to form a seal with the port when the needle pierces the septum. In another variation, the device includes a needleless sealing assembly. In yet other variations, the device uses a needled fluid reservoir. | 08-23-2012 |
| 20120226243 | PRESSURE ACTIVATED SAFETY VALVE WITH ANTI-ADHERENT COATING - A pressure activated valve comprises a valve housing defining a lumen for receiving bodily fluids therein and a flexible membrane disposed in the valve housing. The flexible membrane includes a slit extending therethrough so that the flexible membrane may be moved between an open and a closed configuration based on fluid pressure within the lumen. A nonthrombogenic coating may be formed on fluid contacting surfaces of the flexible membrane. | 09-06-2012 |
| 20120238964 | SLEEVE VALVE CATHETERS - A catheter body includes an exit port over which a pressure responsive sleeve is formed that allows material to exit a lumen of the catheter body at a given pressure. In one embodiment, a surface of the sleeve is approximately flush with a surface of the catheter body. | 09-20-2012 |
| 20120245533 | SLEEVE VALVE CATHETERS - A catheter body includes an exit port over which a pressure responsive sleeve is formed that allows material to exit a lumen of the catheter body at a given pressure. In one embodiment, a surface of the sleeve is approximately flush with a surface of the catheter body. | 09-27-2012 |
| 20120259291 | MEDICAL FLOW DEVICE FOR MULTI-LUMEN CATHETERS - An apparatus for providing access to a target site in a living body, comprises a first elongated member including a proximal opening to a first lumen and a branching point at a distal end thereof and a second lumen open to the first lumen at the branching point, the second lumen extending to a second lumen distal opening at a first connector, the first connector configured to engage a proximal end of a first lumen of a multi-lumen catheter in combination with a third lumen open to the first lumen at the branching point, the third lumen extending to a third lumen distal opening at a second connector, the second connector configured to engage a proximal end of a second lumen of a multi-lumen catheter. | 10-11-2012 |
| 20120271247 | PRESSURE ACTUATED VALVE WITH IMPROVED SLIT CONFIGURATION - A valve apparatus for medical applications, comprises a flexible member extending across a lumen through which a flow of materials is to be controlled. The flexible member includes a plurality of movable elements formed on opposite sides of a slit extending through the flexible member. The moveable members are biased so that when a pressure less than a predetermined threshold value is applied to the flexible member, the moveable elements are maintained in a closed position in which no flow is permitted past the flexible member and, when a pressure at least as great as the threshold value is applied to the flexible member, the moveable elements are moved to an open position separated from one another along the slit permitting flow through the lumen. | 10-25-2012 |
| 20120277688 | Male Reflux Valve - A male reflux valve comprising a distal body portion and a proximal body portion, the proximal body portion having a male connection for connection to a female connection of an access device, a valve element operatively positioned within the distal body portion, a core operatively positioned within the distal body portion to retain the valve element into sealing engagement with the distal body portion and an actuator reciprocably retained within a generally circular cylindrical longitudinal bore of the proximal body portion in engagement with the valve element to open the valve element when engaged by the female connection of the access device. | 11-01-2012 |
| 20120316511 | MULTI-VALVE INJECTION/ASPIRATION MANIFOLD WITH NEEDLELESS ACCESS CONNECTION - An IV manifold includes a plurality of injection/aspiration ports including a needleless access port (NAC). A check valve included in the manifold is generally located between injection ports. A two-way aspiration can be provided by the NAC having a single elongate valve element including a plug at one end. The elongate valve element has properties for resiliently and sealingly biasing the plug into an aperture of the NAC. In use, the plug is mechanically displaced by insertion of a male Luer for injection or aspiration. | 12-13-2012 |
| 20130030385 | CATHETER WITH FLOW BALANCING VALVE - A catheter has at least two irrigated ablation electrodes and a coaxial irrigation tubing to transport fluid to the electrodes by separate and dedicated flow paths. A valve is used to control flow of fluid into the coaxial irrigation tubing by means of a plunger assembly that allows fluid to flow through one lumen of the coaxial irrigation tubing while regulating the flow into the other lumen of the coaxial irrigation tubing in response to the fluid flow rate and pressure applied to the plunger assembly. | 01-31-2013 |
| 20130090607 | INTRAVENOUS CATHETER WITH DUCKBILL VALVE - A catheter assembly is disclosed, which includes a catheter adapter. A port is disposed in the catheter adapter to provide selective access to the interior of the catheter adapter, and can be used for fluid flushing or infusion. A valve is disposed within the catheter adapter that includes a one-way valve portion that prevents proximally-directed fluid flow. The valve further including a flexible tube portion that covers an opening between the port and the catheter adapter. | 04-11-2013 |
| 20130237925 | CATHETER ADAPTER PORT VALVE - A catheter assembly is disclosed that includes a catheter adapter having a port disposed on its sidewall. A valve is coupled to the port to seal the opening in the port. | 09-12-2013 |
| 20130310767 | SEAL TIP CATHETER DEVICES OR METHODS - A first catheter can include a first catheter body providing a longitudinal bore and can have flexible first seal at its distal portion. The first seal can at least partially occlude the bore at the distal portion of the catheter body in a first configuration. A second catheter can be slid into or through the bore of the first catheter body, such as to expand the first seal into a second configuration. Wicking or reflux can be inhibited. Other features, applications, and methods can be included. | 11-21-2013 |
| 20130324943 | Pressure Actuated Valve with Curved Slit Configuration - A valve for controlling material flow through a catheter, comprises a first flexible member including a first moveable element, wherein, when the first moveable element is in the open position, material may flow past the first flexible member through a first lumen of the catheter and, when the first moveable element is in the closed position, flow through the first lumen is prevented and a first biasing member coupled to the first flexible member for biasing the first moveable member toward the closed position. | 12-05-2013 |
| 20140005612 | ONE-WAY VALVE FOR MEDICAL LINES | 01-02-2014 |
| 20140012209 | Valved Tip Catheters - The present disclosure relates to multiple embodiments of catheters which include valved openings which are normally closed to maintain a lock solution within a catheter during periods of non-use. | 01-09-2014 |
| 20140025019 | CATHETER WITH VALVE - A catheter including one or more bidirectional valves is provided. The catheter includes a tubular body having proximal and distal ends, and inner and outer surfaces, and at least one valve formed near the distal end of the tubular body. The valve includes a deformation portion that defines a slit that is openable and closable. The openable/closable slit communicates from the inner surface to the outer surface of the tubular body, wherein the distance between the inner surface and the outer surface of the tubular body progressively becomes thinner approaching the openable/closable slit within the deformation portion. | 01-23-2014 |
| 20140081217 | Flexible Valve Geometry for the Use of Rigid Materials - The present invention inter-alia relates to an apparatus comprising a diaphragm valve, wherein a diaphragm of said diaphragm valve is made from a substantially rigid material, having at least partially an flexible cross-sectional shape. | 03-20-2014 |
| 20140107588 | MEDICAL CONNECTORS AND METHODS OF USE - Some embodiments disclosed herein relate to a medical connector having a backflow resistance module configured to prevent fluid from being drawn into the connector when a backflow inducing event occurs. In some embodiments, the backflow resistance module can include a variable-volume chamber configured to change in volume in response to a backflow-inducing event and a check valve configured to resist backflow. In some embodiments, the medical connector can include a fluid diverter configured to direct fluid flowing through the medical connector into the variable volume chamber to prevent fluid stagnation therein. In some embodiments, the medical connector includes a body member, a base member, a seal member, a support member, and a valve member. | 04-17-2014 |
| 20140163480 | LASSO CATHETER WITH GUIDE WIRE - Medical apparatus includes a flexible insertion shaft, which is adapted for insertion into a body of a patient. A resilient end section is fixed to the distal end of the insertion shaft and is formed so as to assume, when unconstrained, an arcuate shape. One or more electrodes are disposed at respective locations along the end section. A first lumen runs from the insertion shaft through the end section so as to convey an irrigation fluid to exit the end section through perforations of the electrodes. A second lumen runs through the insertion shaft to a distal opening and is configured to permit a guide wire to pass through the second lumen from the proximal end of the insertion shaft to exit distally through the distal opening, while conveying the irrigation fluid from the proximal end through the distal opening together with the guide wire. | 06-12-2014 |
| 20140200521 | Pressure Activated Safety Valve with High Flow Slit - A pressure actuated valve for controlling the flow of fluid through a medical device, the valve comprises a housing including a lumen extending therethrough and a flow control membrane extending across the lumen to control the flow of fluid through the lumen. The membrane includes a plurality of slits extending therethrough so that, when the membrane is acted upon by a pressure of at least a threshold magnitude, the slits open to permit flow through the lumen and, when not acted upon by a pressure of at least the predetermined magnitude, the slits are maintained closed by a biasing force applied thereto by the membrane to prevent flow through the lumen. Each of the slits extends between end portions thereof along a curve wherein a distance between a first end portion of a first one of the slits and a first end portion of a second one of the slits is a minimum distance between the first and second slits. | 07-17-2014 |
| 20140243758 | METHOD TO SECURE AN ELASTIC COMPONENT IN A VALVE - An apparatus for controlling fluid flow to provide long-term access to the vascular system, and methods of making the same, are disclosed. Exemplary embodiments of the present invention describe a wedge or other similarly shaped geometrical features for fixing an elastic component and controlling an internal stress of the elastic component. | 08-28-2014 |
| 20140249485 | Injector System With A Manual Control Device - An injector system includes a powered injector, a pressurizing chamber in operative connection with the powered injection, a fluid path in fluid communication with the pressurizing chamber, and a manual control in fluid connection with the fluid path. The manual control includes at least one actuator for controlling the injector through application of force by an operator. The actuator provides tactile feedback of pressure in the fluid path to the operator via a fluid connection therewith. An injection system for use in angiography includes a source of saline, a pump in fluid connection with the source of saline to pressurized the saline, a source of contrast, a contrast valve in fluid connection with the source of contrast, a powered injector in fluid connection with the contrast valve, and a pressure isolation mechanism. | 09-04-2014 |
| 20140249486 | SELF-PRIMING, ANTI-FREE FLOW VALVE FOR INFUSION PUMPS - A connector of a self-priming IV set valve including a connector body having a hollow region, and a valve element that is at least partially positioned in the hollow region that is configured to be moved, displaced or punctured by a cap that is releasably connectable to the connector body. When the cap is mounted to the connector, the cap either punctures or moves the valve element and a passageway is formed in the connector such that air and liquid are permitted to pass through the connector and into the cap. When the cap is not mounted to the connector, the valve element of the connector is configured to open under pressure to permit the passage of liquid through the connector and close when pressure ceases. | 09-04-2014 |
| 20140276455 | NEEDLELESS CONNECTOR WITH SUPPORT MEMBER - Needleless connectors are described herein. A needleless connector includes a body, a valve element at least partially disposed within the body, and a base. The valve element includes a cylindrical portion having an outwardly extending flange at a distal end. The flange has a bottom surface with an outer area and an inner area. The base includes a rim having a top surface that is in contact with at least a portion of the outer area of the flange of the valve element, the rim defining a recess with a bottom surface distally separated from the top surface of the rim, and at least one support member extending from the rim into the recess so as to contact the inner portion of the bottom surface of the flange. | 09-18-2014 |
| 20140288512 | MULTI-VALVE INJECTION/ASPIRATION MANIFOLD WITH NEEDLELESS ACCESS CONNECTION - An IV manifold includes a plurality of injection/aspiration ports including a needleless access port (NAC). A check valve included in the manifold is generally located between injection ports. A two-way aspiration can be provided by the NAC having a single elongate valve element including a plug at one end. The elongate valve element has properties for resiliently and sealingly biasing the plug into an aperture of the NAC. In use, the plug is mechanically displaced by insertion of a male Luer for injection or aspiration. | 09-25-2014 |
| 20140364814 | INFUSION CHECK VALVE FOR MEDICAL DEVICES - An intravascular valve assembly having a valve case and a flexible pressure- actuated flow control valve. The valve case includes attached proximal and distal case portions that present respective spaced apart fluid ports and a fluid passageway extending between the ports. The flexible pressure-actuated flow control valve is disposed within the fluid passageway and includes a slitted central valve wall. The proximal case portion includes an axially-extending boss that projects distally, with a portion of a distal end of the boss contacting the flow control valve. The valve permits fluid flowing in a distal direction to pass through the slit. Fluid flowing in a proximal direction, however, causes the valve to compresses against the boss and the slit to close, thus restricting fluid flow in a proximal direction. | 12-11-2014 |
| 20140378912 | FLUID INFUSION DEVICE AND RELATED SEALING ASSEMBLY FOR A NEEDLELESS FLUID RESERVOIR - Disclosed herein is a fluid infusion device of the type that delivers medication fluid to the body of a patient. The device includes or cooperates with a fluid reservoir, and the device has a sealing assembly to receive and form a fluid seal with the fluid reservoir. A retractable sealing element surrounding a hollow fluid delivery needle may be used to seal a port of the fluid reservoir. The port may include a pressure vent that is sealed by the retractable sealing element. In one variation, the reservoir includes a moving valve sleeve that holds a septum. The septum moves to allow the reservoir to vent, and to form a seal with the port when the needle pierces the septum. In another variation, the device includes a needleless sealing assembly. In yet other variations, the device uses a needled fluid reservoir. | 12-25-2014 |
| 20140378913 | PRESSURE VENTED FLUID RESERVOIR HAVING A MOVABLE SEPTUM - Disclosed herein is a fluid infusion device of the type that delivers medication fluid to the body of a patient. The device includes or cooperates with a fluid reservoir, and the device has a sealing assembly to receive and form a fluid seal with the fluid reservoir. A retractable sealing element surrounding a hollow fluid delivery needle may be used to seal a port of the fluid reservoir. The port may include a pressure vent that is sealed by the retractable sealing element. In one variation, the reservoir includes a moving valve sleeve that holds a septum. The septum moves to allow the reservoir to vent, and to form a seal with the port when the needle pierces the septum. In another variation, the device includes a needleless sealing assembly. In yet other variations, the device uses a needled fluid reservoir. | 12-25-2014 |
| 20150045747 | DISPENSER COMPRISING ACTUATING PISTON AND OUTLET CHECK VALVE - A valved container assembly which has a container for containing a fluid, the container extending in an axial direction and having an open front end and a valve disposed in the container. The valved container assembly is configured so that forward axial movement of the valve relative to the container is inhibited. A plunger element is disposed axially rearward of the valve and is axially moveable in the container. The plunger element is configured to increase the pressure of a fluid in a first volume of the container upon forward axial movement relative to the valve. The valve includes a channel bypassing the permanent seal, the channel having a first opening in fluid communication with the atmosphere outside of the valved container assembly and a second opening selectively sealed from the first volume by a resilient seal. | 02-12-2015 |
| 20150051554 | ONE-WAY VALVE FOR AN INFUSION INSTRUMENT - The invention pertains to a one-way valve | 02-19-2015 |
| 20150297880 | CONNECTOR - A connector includes: a port in which a disc configured to be displaceable is provided; a space defined by a side wall surrounding the disc in the circumferential direction when the disc is displaced and a bottom wall arranged at a position opposite the disc and configured to allow displacement of the disc; and a flow passage connected to the bottom wall at a position away from the side wall, and allowing fluid to flow therethrough to the space. The connector further includes cutouts formed from the flow passage to the side wall. | 10-22-2015 |
| 20150306309 | INFUSION DEVICE FOR IV DRUGS THAT ARE INCOMPATIBLE TO EACH OTHER - The present invention is a device and system to permit the isolation of two fluid compounds to be delivered to a patient without intermingling the two fluid compounds, yet permitting the labor saving activity of permitting a nurse or other medical staff member to hang two IV bags simultaneously. Fluid from the first IV bag inflates the barrier pressure valve and seals the system against the intrusion of the second fluid from the second IV bag until the first fluid has been fully delivered. The barrier pressure valve then unseals the system to permit the flow of fluid from the second IV bag to the patient. This implementation permits this isolation and separate delivery of two fluids without using electronics or other technology that would require a battery backup or other uninterruptible power source. | 10-29-2015 |
| 20150320993 | COMPRESSIBLE CANNULA VALVE - A needleless valve system includes a cannula comprising a cannula tip; a valve comprising a valve tip, wherein the valve is disposed around the cannula; and a housing comprising a housing tip, wherein the cannula tip, the valve tip, and the housing tip comprise a flat surface when the needleless valve system is in a sealed position. | 11-12-2015 |
| 20150374970 | Anti-blood-loss valve - An anti-blood-loss valve based on a valve body ( | 12-31-2015 |
| 20160001056 | MEDICAL CONNECTOR - A medical connector for use in a fluid pathway includes a housing configured to permit fluid flow between a first medical device and a second device or location. The medical connector includes a valve member configured to be positioned at least partially within the housing. The valve member is configured to receive the first medical device. The valve member can be moved into a second state. The connector can be adapted for use with a catheter assembly. | 01-07-2016 |
| 20160008530 | Pressure Actuated Valve with Improved Biasing Member | 01-14-2016 |
| 20160089492 | VALVE DEVICE, A DELIVERY SYSTEM INCLUDING SAME AND METHOD - The disclosed subject matter relates to a valve device that includes a valve member located within a housing in which the valve member's operation can be bypassed. For example, the valve device can include a bypass device that has an input structure, a motion conversion structure, and an output structure. The input structure can include a portion configured to resiliently deform if a valve opening input force is applied to the input structure in an input direction. The motion conversion structure can be configured to convert the valve opening input force into motion of the output structure in an output direction that is non-parallel to the input direction. The output structure can be configured to move the valve member (e.g., from a closed state to an opened state in order to bypass normal valve operation) if the motion conversion structure is displaced in the input direction. The valve device can be used in various manners, and is particularly suitable for use in a patient fluid delivery system. | 03-31-2016 |
| 20160106915 | Adjustable Medium Diverter - A system for modulating delivery of a fluid medium to a selected site within a patient's body includes a syringe for injecting the fluid medium, a delivery catheter including a conduit for delivering the fluid medium from outside of the body to the selected site within the body, and a flow diverter assembly disposed in a fluid medium flow path between the syringe and the delivery catheter. The syringe includes a chamber for receiving the fluid medium therein. The flow diverter assembly is configured to simultaneously divert at least some of the fluid medium within the chamber of the syringe away from the delivery of the medium through the delivery catheter conduit during injecting with the syringe, and wherein the flow diverter assembly creates increasing medium fluid flow resistance with increasing pressure level of the fluid medium within the flow diverter assembly. A method for modulating fluid delivery to a selected site within a patient's body is also disclosed. | 04-21-2016 |
| 20160106970 | MEDICAL CONNECTORS AND METHODS OF USE - Some embodiments disclosed herein relate to a medical connector having a backflow resistance module configured to prevent fluid from being drawn into the connector when a backflow inducing event occurs. In some embodiments, the backflow resistance module can include a variable-volume chamber configured to change in volume in response to a backflow-inducing event and a check valve configured to resist backflow. In some embodiments, the medical connector can include a fluid diverter configured to direct fluid flowing through the medical connector into the variable volume chamber to prevent fluid stagnation therein. In some embodiments, the medical connector includes a body member, a base member, a seal member, a support member, and a valve member. | 04-21-2016 |
| 20160121041 | Pressure Activated Valve with High Flow Slit - A pressure actuated valve for controlling the flow of fluid through a medical device, the valve comprises a housing including a lumen extending therethrough and a flow control membrane extending across the lumen to control the flow of fluid through the lumen. The membrane includes a plurality of slits extending therethrough so that, when the membrane is acted upon by a pressure of at least a threshold magnitude, the slits open to permit flow through the lumen and, when not acted upon by a pressure of at least the predetermined magnitude, the slits are maintained closed by a biasing force applied thereto by the membrane to prevent flow through the lumen. Each of the slits extends between end portions thereof along a curve wherein a distance between a first end portion of a first one of the slits and a first end portion of a second one of the slits is a minimum distance between the first and second slits. | 05-05-2016 |
| 20160121095 | COUPLER FOR ENDOSCOPE FLUID SUPPLY - In some embodiments, a device for coupling a fluid source to a medical device includes a housing. The housing includes a proximal portion and a distal portion and defines a passageway therebetween. The proximal portion is configured to be coupled to the fluid source and the distal portion is configured to be coupled to the medical device such that the medical device is in fluidic communication with the fluid source via the passageway. A deformable member is disposed on the distal portion and is configured to deform to removably couple the housing to the medical device. In some embodiments, the deformable member is configured to form a substantially fluid-tight seal with the medical device. In some embodiments, the distal portion includes a sealing member configured to form a substantially fluid-tight seal with the medical device. | 05-05-2016 |
| 20160175518 | REGULATOR FOR DRUG INFUSION AND DRUG INFUSION DEVICE INCLUDING SAME | 06-23-2016 |
| 20160175560 | CATHETER PATENCY SYSTEMS AND METHODS | 06-23-2016 |
