| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 604167030 | Valve means | 88 |
| 20100010447 | FLUSH ENTRANCE HEMOSTASIS VALVE WITH UNOBSTRUCTED PASSAGEWAY - A method of placing a catheter into a patient while preventing disadvantageous escape of fluid from the patient comprises providing a catheter secured to a valve hosing. The catheter has a proximal end, a distal end and an interior lumen. The valve housing has a first port, a second port, and a fluid path running between the first and second ports. The catheter and the valve housing have a hollow needle extending therethrough. The method further comprises piercing the patient's skin, thereby inserting the catheter into the patient. The method further comprises holding the catheter and valve housing in place while removing the hollow needle through the catheter and valve housing. The hollow needle passes through the first and second ports of the valve housing. | 01-14-2010 |
| 20120310167 | Valved Introducer Assembly and Method Therefor - An introducer assembly includes a sheath having a sheath proximal end and distal end, and a passage therethrough. The introducer assembly further includes a valve assembly that is sealingly associated with the passage of the sheath. The valve assembly includes a valve having a first seal and a second seal, where the first and second seal optionally have different sealing properties. For example, the first seal and the second seal have different thicknesses, different sealing durometers, or otherwise different sealing features. In another option, the sheath is removable from the instrument disposed therethrough. In yet another option, the valve of the valve assembly further includes a chamber disposed between the first and second seals. The seals are spaced to accommodate devices with multiple flow holes therein. | 12-06-2012 |
| 20100249711 | SURGICAL ACCESS APPARATUS WITH SEAL AND CLOSURE VALVE ASSEMBLY - A surgical access apparatus includes an access housing, an access member extending from the access housing, a seal mount disposed within the access housing and having an object seal for forming a seal about the surgical object and a monolithic closure valve mounted to the housing distal of the seal mount. The access housing and the access member define a longitudinal passage for passage of a surgical object. The closure valve includes an interface segment and a closure segment extending from the interface segment. The interface segment is in contacting relation with the seal mount and comprises a generally compilable material adapted to maintain a substantial seal with the seal mount and within the longitudinal passageway during angular movement of the surgical object. | 09-30-2010 |
| 20110087170 | TROCAR AND CANNULA ASSEMBLY HAVING IMPROVED CONICAL VALVE, AND METHODS RELATED THERETO - A trocar and cannula assembly with improved conical valve that incorporates a plurality of ribs to restrict and/or otherwise influence valve movement, and a plurality of improved convolutes and bumps to enhance performance characteristics. | 04-14-2011 |
| 20140207069 | ACCESS DEVICE WITH VALVE - A splittable sheath includes a splittable sheath body, a splittable sheath hub, and a valve element. The sheath body comprises a generally flexible tubular structure, a proximal end, and a distal end. The sheath body defines a longitudinal axis and is splittable into two halves along a pre-determined line generally parallel to the longitudinal axis. The sheath hub extends from the proximal end of the sheath body and defines a longitudinal axis generally aligned with the longitudinal axis of the sheath body. The sheath body and sheath hub form an inner cavity along their respective longitudinal axes. The valve element includes a resilient plate and a sealing element. The resilient plate includes a distal portion extending radially inwardly from a side of the inner cavity. | 07-24-2014 |
| 20110288483 | Groove Universal Radial Seal Ring Used in a Trocar and Trocar - A grooved universal radial seal ring used in a trocar and a trocar are provided. The radial seal ring includes one or more easily-deformable grooves, one or more supporting areas capable of guiding surgical device movement, and a through hole, the supporting areas of the seal ring are connected by the easily-deformable grooves, a thickness of the easily-deformable grooves is much smaller than an average thickness of the supporting areas, so that when a surgical device is inserted along a cone-shaped guiding groove of the supporting areas, the easily-deformable grooves deform first and surround the surgical device because a wall thickness of the easily-deformable grooves is very small, thereby achieving a sealing effect. When the surgical device shakes, the supporting areas separated by the easily-deformable grooves also shake together, but the seal ring formed by the easily-deformable grooves still surrounds the surgical device, thereby always keeping a sealed state and achieving an excellent dynamic sealing effect. Particularly, the thickness of the easily-deformable grooves is small, not only a dynamic sealing effect is excellent, but also surgical device moving resistance is small. The trocar realizes any replacement among surgical devices with diameters being 12 millimeters (mm), 10 mm, and 5 mm, thereby bringing convenience to surgical operation. | 11-24-2011 |
| 20110087169 | Trocar Assembly - A trocar sleeve assembly including a cannula connected to a housing assembly to define a working channel, wherein the housing assembly includes a housing that defines an opening in fluid communication with the working channel, a sleeve slidably received over the housing to define an annular region between the sleeve and the housing, a first sealing member forming a first seal between the sleeve and the housing, and a second sealing member forming a second seal between the sleeve and the housing, the second sealing member being axially spaced from the first sealing member to define a chamber in the annular region, and an insufflation port in fluid communication with the chamber, wherein the sleeve is slidable relative to the housing between a first position, wherein the chamber is in fluid communication with the opening, and a second position, wherein the chamber is fluidly decoupled from the opening. | 04-14-2011 |
| 20110087168 | Trocar Assembly - A trocar assembly including a sleeve assembly defining a working channel extending axially therethrough and including an insufflation port in fluid communication with the working channel, and an insufflation valve assembly fluidly coupled to the insufflation port, the insufflation valve assembly including a valve member and a housing, wherein the valve member defines an inlet channel and is biased relative to the housing to a first position in which the inlet channel is in fluid communication with the working channel, and wherein the valve member is moveable relative to the housing from the first position to a second position in which the inlet channel is fluidly decoupled from the working channel. | 04-14-2011 |
| 20140074034 | CATHETER ASSEMBLY - A catheter assembly includes a hollow catheter; a catheter hub fixed onto a base end portion of the catheter, the catheter hub having an internal passage communicating with an inside of the catheter; a needle disposed in the catheter; a needle hub; a valve element including an opening and closing unit configured to be opened and closed; an operation member including a tubular body, the operation member being configured such that an opening portion of the operation member is insertable into the opening and closing unit to cause the base end side and a tip side of the catheter hub to communicate with each other; a communication unit; and a sealing member including a tubular body, the sealing member being disposed at a base end side of the valve element and being configured to allow the passage of air and prohibit the passage of liquid. | 03-13-2014 |
| 20110112480 | SURGICAL ACCESS DEVICE WITH FLOATING GEL SEAL - A trocar is provided with a cannula and a housing and valve assembly disposed in the housing which forms a housing seal, and instrument seal, and in some cases a zero seal. A gel material is included in the valve and provides the valve with superior flotation properties for maintaining the instrument seal even when the instrument is moved off-axis. In order to accommodate movement of the gel material, voids can be formed within the valve housing and even within the gel material. | 05-12-2011 |
| 20120197201 | INDWELLING NEEDLE AND INDWELLING NEEDLE ASSEMBLY - A indwelling needle includes an outer needle, an outer needle hub with a flow path communicating with the inside of the outer needle and configured to connect a connector to the flow path, and a valve mechanism which opens and closes the flow path. The valve mechanism includes a valve element in the middle of the flow path having an openable/closable opening/closing section and an operation member having a side hole and configured to open and close the opening/closing section. The valve mechanism is positionable in a state in which the operation member penetrates through the opening/closing section to protrude therefrom and the side hole is located closer to the front end side than the opening/closing section. When infusion liquid is supplied in this state, the liquid flows to the flow path through the side hole and the dead space within the flow path is filled with the infusion liquid. | 08-02-2012 |
| 20110202008 | ACCESS APPARATUS INCLUDING INTEGRAL ZERO-CLOSURE VALVE AND CHECK VALVE - An access apparatus for use in surgical procedures is provided. The access apparatus includes a zero-closure valve disposed within a housing associated with the access apparatus and adjacent a longitudinal passage defined by an access member operably associated with the access apparatus. The zero-closure valve is configured to provide a substantially fluid-tight seal in the absence of the surgical instrument inserted therethrough. A check-valve is operably associated with the zero-closure valve and is in fluid communication with the longitudinal passage and an insufflation port operably associated with the access member. The check-valve is configured to provide a fluid-tight seal when a pressure inside the access apparatus is greater than a pressure external thereof. | 08-18-2011 |
| 20120143138 | Catheter Introducer Including a Valve and Valve Actuator - Tear-away sheath introducers for catheters and methods for making and using such introducers are described. The sheath introducers contain movable valves that are encapsulated in a movable housing that allows the valve to move along the introducer axis. As the movable valve and housing travel along the axis, a portion of the hub protrudes past the valve and is exposed. As well, the sheath introducers can also contain a stationary valve and housing that can be opened to expose a portion of the hub when a conduit penetrates the stationary valve. The conduit can include a one-way, two-way, or other suitable valve actuator that can penetrate and open the valve, yet remain attached to a portion of the introducer when the introducer is split for removal from a patient. In both instances, the protruding portion of the hub contains a friction-free pathway for a catheter into the sheath introducer. | 06-07-2012 |
| 20100222747 | SURGICAL ACCESS APPARATUS - An access apparatus for use during a surgical procedure to provide access to the interior of the body includes an access member defining a longitudinal axis and having a proximal end for being disposed at an exterior side of the body and a distal end for extending into the interior of the body. The access member has a bore therethrough dimensioned to permit passage of an object. A seal is disposed within the bore of the access member. The seal includes a fabric material and an elastomeric material, and defines an internal passageway dimensioned to form a substantial sealing relation with an object inserted therethrough. | 09-02-2010 |
| 20090292251 | INTRODUCER SEAL ASSEMBLY - A unique surgical system and method of use includes a seal assembly which is initially mountable about a surgical instrument. The surgical instrument with mounted seal assembly is thereafter positioned within a cannula assembly. The seal assembly forms a fluid tight seal within the interior of the cannula assembly while also forming a fluid tight seal about the surgical instrument. The seal assembly and the cannula assembly cooperate to permit angulation of the surgical instrument. A magnetic coupling assists in retaining the seal assembly within the cannula assembly. | 11-26-2009 |
| 20100298775 | ACCESS SHEATH WITH CENTRAL SEAL - An access apparatus for use during a surgical procedure to provide access to the interior of the body includes an access member defining a longitudinal axis and having a proximal end for being disposed at an exterior side of the body and a distal end for extending into the interior of the body. The access member has a bore therethrough dimensioned to permit passage of an object. A seal is disposed within the longitudinal bore substantially at the rotational center of the access member. The seal has inner seal portions adapted to establish a substantial seal about a surgical instrument introduced within the longitudinal bore of the access member. An access housing may be mounted to the proximal end of the access member. A zero closure valve may be mounted to the access housing. The zero-closure valve may be adapted to close in the absence of the instrument. The seal may be generally disc shaped. The seal may define an aperture for reception of the surgical instrument. The seal may comprise a fabric material, an elastomeric material or a gel material. | 11-25-2010 |
| 20120271236 | Sheath Introducer System with Exchangeable Hemostatic Valves - A sheath introducer system with exchangeable hemostatic valve modules is disclosed. A first valve module includes a single entry port to ensure hemostasis during the introduction of an interventional device, such as a main graft delivery system for treatment of an abdominal aortic aneurysm (AAA). A second valve module includes multiple entry ports to ensure hemostasis during the simultaneous introduction and manipulation of multiple interventional devices, such as multiple guiding catheters for use in delivering various intravascular graft components for completion of branch perfusion, for instance, during treatment of the AAA. | 10-25-2012 |
| 20130338595 | INTRODUCER SHEATH - An introducer sheath and methods of making the introducer sheath are described. The introducer sheath may include a hub portion and a tubular portion. The hub portion may include a substantially non-planar valve portion in a relaxed state. The valve portion may include an aperture configured to receive a medical device. A hub portion may be formed using a forming device. An aperture may be formed through a distal surface of the valve portion. | 12-19-2013 |
| 20110152777 | POWERED VARIABLE SEAL DIAMETER TROCAR EMPLOYING A WINEPRESS MECHANISM - A surgical access apparatus includes an access member having a longitudinal passageway providing access to a tissue site. An elongated seal member mounted to the access member has an orifice with a variable inner dimension. The elongated seal member establishes a sealing relation about an instrument and is associated with a powered adjustment mechanism for adjusting the variable inner dimension of the orifice. The powered adjustment mechanism includes trailing and leading hubs longitudinally spaced and adapted for relative rotation about an axis defined by the access member. A plurality of spokes extends between the hubs and defines first and second minimum internal dimensions when in first and second conditions respectively upon relative rotation of the hubs. The spokes are arranged about the elongated seal member to adjust the variable inner dimension of the orifice upon relative rotation of the hubs. A powered motion generator effects relative rotation between the hubs. | 06-23-2011 |
| 20100280456 | ACCESS PORT VALVE ASSEMBLY - The invention relates to a valve assembly ( | 11-04-2010 |
| 20110054405 | HEMOSTASIS VALVE WITH IRIS SEAL - A hemostasis valve is disclosed herein. The hemostasis valve may include an inner bushing, a rotation sleeve, an elastomeric sleeve, and a biasing element. The rotation sleeve may extend about the inner bushing and be rotationally displaceable relative to the inner bushing. The elastomeric sleeve may include a first end operably coupled to the inner bushing, a second end operably coupled to the rotation sleeve, and an iris valve portion. Rotation of the rotation sleeve relative to the inner bushing may cause the iris valve to transition from an open state to a closed state. The biasing element may act between the rotation sleeve and inner bushing to bias the iris valve towards at least one of a closed state or an open state. | 03-03-2011 |
| 20100292647 | Valve-Retaining Cap for Tearaway Sheath Assembly and Method of Assembly - A tearaway sheath assembly ( | 11-18-2010 |
| 20140316338 | Pleated Trocar Seal - A trocar seal comprising an elastomeric membrane having an opening adapted to receive a surgical instrument. The membrane is configured with a plurality of pleats circumscribing the opening and extending laterally from opening. The pleats comprise a plurality of pleat walls increasing in height as the pleats extend laterally from the opening. In one embodiment, the pleats are conically arranged. | 10-23-2014 |
| 20100324490 | Variable diameter tubular structure for a biomedical use - A plastics material variable diameter tubular structure for a biomedical use has a diameter which increases as the structure is subjected to an inner force, and returns to a starting diameter in a rest condition of the structure, the tubular structure being advantageously used for making a body of a vascular introducer device. | 12-23-2010 |
| 20100114032 | SURGICAL ACCESS PORT WITH FLEXIBLE SEALING CANNULA - A surgical access device for surgical instruments comprises a housing with an instrument port and zero closure valve. A cannula is disposed distally relative the housing. The cannula comprises a distal end, a proximal end, and a flexible tube having a longitudinal axis between the distal and proximal ends. An instrument seal is positioned adjacent the distal end of the cannula. The instrument seal is dimensioned to have an interference fit with a surgical instrument inserted into the cannula. Longitudinal movements of a surgical instrument are accommodated by buckling of the flexible tube while the relative longitudinal position of the instrument seal and instrument are substantially unchanged. | 05-06-2010 |
| 20120004613 | PLEATED TROCAR SEAL - A trocar seal comprising an elastomeric membrane having an opening adapted to receive a surgical instrument. The membrane is configured with a plurality of pleats circumscribing the opening and extending laterally from opening. The pleats comprise a plurality of pleat walls increasing in height as the pleats extend laterally from the opening. In one embodiment, the pleats are conically arranged. | 01-05-2012 |
| 20130345636 | CARRIERS FOR HEMOSTATIC TRACT TREATMENT - Apparatuses and methods for administering a hemostatic agent to the tissue surrounding an opening in a body lumen are disclosed. The apparatus can include a tissue-contacting region and an optional body lumen-penetrating region. At least one hemostatic agent is included as a component of a coating over and/or a mixture with the material of at least a portion of the tissue-contacting region. | 12-26-2013 |
| 20090326469 | SURGICAL ACCESS INSTRUMENT INCLUDING A VALVE WITH DYNAMIC FLUID - A surgical access instrument for use during the course of a minimally invasive surgical procedure, includes an access member defining a longitudinal axis and having a longitudinal opening for reception and passage of a surgical object, a valve membrane mounted to the access member defining at least one internal cavity and permitting passage of the surgical object and a dynamic fluid disposed within the internal cavity. The dynamic fluid is adapted to transition from a first state to a second state upon exposure thereof to a stimulus to assist in stabilizing the surgical object relative to the access member. In its first state, the fluid defines a first set of physical attributes, including but not being limited to viscosity and density, that allow for the displacement of the fluid, whereas in the second state, the fluid defines a second, dissimilar set of physical attributes, e.g., a greater viscosity and a greater density, that substantially limit displacement of the fluid. | 12-31-2009 |
| 20090318869 | ACCESS SEAL WITH INTERSTITIAL CHANNELS - The present disclosure relates to a valve or seal of the type adapted to allow the introduction of an instrument or object therethrough. In particular, the valve disclosed herein is adapted to maintain a substantially fluid-tight seal with a surgical instrument and is used during a minimally invasive surgical procedure. The valve disclosed herein incorporates one or more bladder members adapted to retain a fluid therein that are associated by one or more interstitial members. | 12-24-2009 |
| 20100204655 | HEMOSTASIS VALVE SYSTEM - A hemostasis valve system for controlling a flow of fluid includes a housing having a chamber therein, and a valve disposed in the chamber. The valve comprises a plurality of elastomeric valve members, each having opposing shaped first and second faces, a shaped inner edge portion, and a shaped outer edge portion. The valve members are collectively structured and arranged in the valve such that the shaped faces and the shaped inner edges are engaged in interlocking relationship. The valve members have sufficient elasticity to define a yieldable opening along the engaged inner edge portions upon passage therethrough of a medical interventional device. | 08-12-2010 |
| 20100241082 | ACCESS SEALING APPARATUS AND METHOD - A surgical access device includes a seal housing and a roller disposed in the housing and defining a working channel. The roller may be stationary or moveable within the seal housing to form both a zero seal in the absence of an instrument, and an instrument seal in the presence of an instrument. Rotation of the roller is contemplated and low-friction surfaces are discussed to reduce instrument insertion forces. Multiple rollers, wiper elements, low-friction braid, pivoting elements and idler rollers are contemplated. The rollers will typically be formed of a gel material in order to facilitate the desired compliance, stretchability and elongation desired. | 09-23-2010 |
| 20100130939 | INTRODUCER SHEATH AND METHODS OF MAKING - An introducer sheath and methods of making the introducer sheath are described. The introducer sheath may include a hub portion and a tubular portion. The hub portion may include a substantially non-planar valve portion in a relaxed state. The valve portion may include an aperture configured to receive a medical device. A hub portion may be formed using a forming device. An aperture may be formed through a distal surface of the valve portion. | 05-27-2010 |
| 20130053782 | Surgical Access Device with Adjustable Cannula - A surgical access device is provided having a cannula and obturator. The cannula has a housing and tube section with an anchor located about the tube section. The obturator has a mechanism to deploy the anchor and adjust the cannula length. The anchor is moveable between a deployed and undeployed state where the undeployed state facilitates insertion and removal of the access device and the deployed state assists in fixation of the cannula in an anatomic structure. Anchor deployment is independent of cannula length adjustment. | 02-28-2013 |
| 20120310166 | HEMOSTATIC VALVE WITH MULTI-LAYER VALVE STRUCTURE - A hemostatic valve device for use in inserting an interventional device into a body lumen of patient is provided. The valve device includes a housing that defines a cavity between first and second end openings. A valve structure is disposed within the cavity, and defines a variable diameter channel for receiving the interventional device. The valve structure can include discrete layers of material, such as a sealing layer and a contractible layer such as a biaxial braided layer. The end of the valve structure is movable relative to the fixed end so that the longitudinal passageway of the valve structure varies in diameter and axial length to form a seal against an interventional device inserted within the passageway. An operable element is coupled to the movable end and is actuated by the end user to open and close the valve structure. | 12-06-2012 |
| 20130138043 | INTRODUCER SHEATH AND METHODS OF MAKING - An introducer sheath and methods of making the introducer sheath are described. The introducer sheath may include a hub portion and a tubular portion. The hub portion may include a substantially non-planar valve portion in a relaxed state. The valve portion may include an aperture configured to receive a medical device. A hub portion may be formed using a forming device. An aperture may be formed through a distal surface of the valve portion. A valve portion may be formed in a cap defining a cavity sized to elastically receive a proximal end of the hub portion. | 05-30-2013 |
| 20090306598 | Valve assembly for medical procedures - The invention relates to a valve used in medical procedures. More specifically the invention relates to an introducer sheath valve used in minimally invasive and conventional surgical procedures. The valve may accommodate a wide range of surgical implement diameters, shapes, and multiple implements without imposing the high frictional forces of known valves. | 12-10-2009 |
| 20100268164 | Trocar for Laparoscopic Surgery - The present invention relates to a trocar for laparoscopic surgery for performing the laparoscopic surgery through a surgical instrument by making a puncture in the abdomen of a patient, the trocar including: a head unit 10 including an upper case 11 and a lower cover 12; a base unit 20 including a lower case 24 having a trocar sleeve fixing protrusion 21 in a lower part thereof and a coupling member 25 installed at an upper surface thereof; a trocar sleeve 17 installed at the trocar sleeve fixing protrusion 21; a lip valve 60 installed within the head unit 10 and having a tapered lower part; an insertion unit 30 installed at the upper part of the lip valve 60; a button unit 40 including a button 41 elastically installed at an elastic bush 43; and a trocar needle 50 introduced into the trocar sleeve 17 through the lip valve 60 or the insertion unit 30. | 10-21-2010 |
| 20100268163 | MODULAR INTRODUCER AND EXCHANGE SHEATH - In accordance with the present disclosure there is provided exemplary embodiments of an introducer sheath, wherein the introducer sheath may be formed of multiple components at least one of which may be integrally formed or resiliently assembled to form a single introducer sheath. One embodiment of the introducer sheath includes a hub and a flexible valve. The flexible valve member may be non-planar in a relaxed state. | 10-21-2010 |
| 20120109063 | HAEMOSTATIC VALVE ASSEMBLY - A haemostatic valve assembly ( | 05-03-2012 |
| 20120157923 | SURGICAL ACCESS DEVICE WITH PENDENT VALVE - A surgical access device, such as a trocar, includes a pendent valve having an elongate structure extending from a proximal end to a septum valve disposed at a distal end. In operation, the elongate structure follows the angle of the instrument to pre-position the septum valve into the path of the instrument where it is not significantly challenged during instrument insertion or manipulation. The pendant valve can be made to float at both the proximal end and the distal end of the elongate structure, to further reduce the vulnerability of 100 the septum valve. Since the valve is less vulnerable to instrument insertion, it can be formed to minimize friction and maximize the functional range of the access device. | 06-21-2012 |
| 20100125248 | SURGICAL ACCESS DEVICE WITH FLOATING GEL SEAL - A trocar is provided with a cannula and a housing and valve assembly disposed in the housing which forms a housing seal, and instrument seal, and in some cases a zero seal. A gel material is included in the valve and provides the valve with superior flotation properties for maintaining the instrument seal even when the instrument is moved off-axis In order to accommodate movement of the gel material, voids can be formed within the valve housing and even within the gel material. | 05-20-2010 |
| 20100094228 | TROCAR ASSEMBLY - A surgical system comprising a cannula assembly and an obturator assembly for penetrating tissue is disclosed. A cover of the cannula assembly is mounted to a cannula housing and has a cover aperture therethrough. The cover has a trailing end face defining a predetermined geometrical configuration, at least a portion of the trailing end face is obliquely arranged relative to a longitudinal axis and terminates in, and leads toward the cover aperture to facilitate guiding of the surgical object through the cover aperture. The obturator assembly includes an obturator housing and an obturator member. The obturator housing has a housing base defining a leading end face, which defines a predetermined geometrical configuration corresponding to the predetermined geometrical configuration of the trailing end face of the cover to mate therewith upon assembly of the obturator assembly with the cannula assembly. | 04-15-2010 |
| 20120123340 | FLUSH ENTRANCE HEMOSTASIS VALVE WITH UNOBSTRUCTED PASSAGEWAY - A method of placing a catheter into a patient while preventing disadvantageous escape of fluid from the patient comprises providing a catheter secured to a valve hosing. The catheter has a proximal end, a distal end and an interior lumen. The valve housing has a first port, a second port, and a fluid path running between the first and second ports. The catheter and the valve housing have a hollow needle extending therethrough. The method further comprises piercing the patient's skin, thereby inserting the catheter into the patient. The method further comprises holding the catheter and valve housing in place while removing the hollow needle through the catheter and valve housing. The hollow needle passes through the first and second ports of the valve housing. | 05-17-2012 |
| 20130030373 | Angiocatheter System With Anti-Leak Features - Angiocatheter systems with anti-leak features for helping to prevent leaking or blood splashes that could possibly pose a health risk to the patient and/or practitioner. The systems may feature slidable anti-leak components that regulate opening and closing of the hub's hole, wherein the anti-leak components are moveable upon insertion or removal of a secondary device. The systems may feature a moveable inner wall or components on the inner wall that regulate opening of the hub's hole, wherein the wall or components of the wall are movable upon insertion or removal of a secondary device. The systems may feature compressible valves or twistable bases that regulate opening of the hub's hole, wherein the valves or bases are manipulated upon insertion or removable of a secondary device. | 01-31-2013 |
| 20120238958 | ADJUSTABLE DIAMETER HEMOSTATIC VALVE - A hemostatic valve device for use in inserting an interventional device into a body lumen of a patient. The valve device includes a housing that defines a cavity between first and second end openings. A valve structure is disposed within the cavity, and defines a variable diameter channel for receiving the interventional device. An annular chamber is generally formed between the valve structure and the housing inner surface, and can be filled with fluid. The housing is movable between first and second positions so that the volume of the cavity and the diameter of the channel vary to a degree for the valve structure to form a seal along the interventional device inserted within the channel. The valve structure may be configured to seal without substantial twisting. | 09-20-2012 |
| 20120310165 | COAXIAL TROCAR SEALS HAVNG SEQUENTIAL ADJACENT OPENINGS - An instrument seal of a surgical access device is provided and includes a plurality of nested coaxial seals arranged to cooperate and form a complete, circumferential seal around an inserted instrument. | 12-06-2012 |
| 20120245527 | INTRODUCER VALVE - The present invention is directed to a novel valve for an introducer and a method for using the introducer valve to facilitate the insertion of one or more medical devices into a patient's body. The introducer valve of the present invention includes two or more valves seals adapted to form a seal around medical devices having a wide range of sizes. In one embodiment, the valve includes a longitudinal passageway for receiving a medical device, a first seal forming a seal across longitudinal passageway, and an annular second seal, wherein an aperture of the second seal is defined by a semi-toroidal portion that forms a curved inner surface that forms a seal with the medical device. | 09-27-2012 |
| 20120316501 | PLEATED TROCAR SHIELD - A surgical access device or trocar defines an access channel for instruments extending from a proximal end to the distal end thereof. The trocar comprises a cannula and a seal assembly disposed at the proximal end of the cannula. The seal assembly comprises a first or zero seal, a second or instrument seal, and a trocar shield disposed proximally of the first seal and the second seal. The first seal seals the access channel in the absence of an instrument extending therethrough. The second seal seals the access channel in the presence of an instrument extending therethrough. The trocar shield protects the first seal and second seal from damage as an instrument is advanced through the access channel. The trocar shield comprises an open proximal end and a tapered distal end comprising a plurality of longitudinal pleats, converging in an opening. | 12-13-2012 |
| 20110264047 | Valved Introducer Assembly and Method Therefor - An introducer assembly includes a sheath having a sheath proximal end and distal end, and a passage therethrough. The introducer assembly further includes a valve assembly that is sealingly associated with the passage of the sheath. The valve assembly includes a valve having a first seal and a second seal, where the first and second seal optionally have different sealing properties. For example, the first seal and the second seal have different thicknesses, different sealing durometers, or otherwise different sealing features. In another option, the sheath is removable from the instrument disposed therethrough. In yet another option, the valve of the valve assembly further includes a chamber disposed between the first and second seals. The seals are spaced to accommodate devices with multiple flow holes therein. | 10-27-2011 |
| 20110257598 | TROCAR SEAL WITH REDUCED CONTACT AREA - Seal assemblies or valves, generally for use in trocar assemblies, are provided for reducing the amount of contact between an instrument being passed into and out of a trocar assembly and an inner surface of a sealing wall of such seal assemblies or valves. In one exemplary embodiment a valve includes an activation extension that is formed on the inner surface of the sealing wall of the valve and is configured such that a distal end of the sealing wall is moved to the open position by an instrument contacting the activation extension. In one embodiment the instrument does not come into contact with the inner surface of the sealing wall during the procedure. In another embodiment a distal-most end of the activation extension can be closer to a longitudinal axis extending through the flange than the inner surface of the sealing wall. | 10-20-2011 |
| 20090157006 | Introducer Assembly with Cap and Method of using Same - An introducer sheath assembly ( | 06-18-2009 |
| 20080300545 | Trocar Cannula with an Elastic Ring - This invention provides a trocar cannula adapted to form a seal around a surgical instrument, the trocar cannula comprising: a housing for receiving the surgical instrument; an elastomeric septum seal disposed in the housing, the elastomeric septum seal comprising a septum seal defining an orifice having a diameter substantially no greater than the diameter of the surgical instrument so that during insertion of the surgical instrument, the septum seal forms a seal with the surgical instrument; a cannula tube connected to the housing; a zero closure valve disposed between the cannula tube and the housing; and an elastic ring disposed surrounding the elastomeric septum seal, the elastic ring being capable of changing its shape in accordance with the movement of the elastomeric septum seal so as to enable the septum seal to maintain a tight seal around the surgical instrument when the surgical instrument is moved. | 12-04-2008 |
| 20080208132 | Indwelling Needle - An indwelling needle for reducing the deterioration of the valve by the pressure force of the elastic member. | 08-28-2008 |
| 20080319395 | VALVE OPENER - A medical introducer apparatus for use in inserting an interventional device into a body vessel of a patient. The apparatus includes a housing having a proximal opening, a distal opening, and a chamber positioned between the openings. A hemostatic valve system is provided in the housing chamber. The valve system includes a plurality of generally elastomeric valve members axially arranged in the chamber. The valve members each have a generally circular hole extending therethrough, which hole is sized for substantially leak-free passage of the interventional device. The valve members are aligned in the chamber to be sequentially penetrable by the interventional device, such that a hole in one valve member is covered by an adjoining valve member. A valve opener having a tubular body with a curved portion penetrates the hemostatic valve system to aid in the positioning of the interventional device. The curved portion maintains the valve opener stationary within the valve system. | 12-25-2008 |
| 20090198188 | ADAPTOR FOR AN INTRODUCER VALVE IN A HUMAN OR ANIMAL BODY - An adaptor ( | 08-06-2009 |
| 20090069751 | Intravenous Delivery Systems - An intravenous delivery system includes a device head and a needle carrier. The device head includes a body defining a first lumen extending from a first end to a second end and a second lumen in fluid communication with the first lumen and a port defined by the head body. A catheter disposed at the first end of the head body is in fluid communication with the first lumen. A self-sealing plug is disposed at the second end. The needle carrier is secured to the second end of the head body and includes a longitudinally extending housing and a hollow needle slidably disposed therein. A needle retractor coupled to the needle is operable to slide the needle longitudinally among deployed and retracted positions. The needle extends through the plug, first lumen, and catheter while in the deployed position, and is retracted into the needle carrier housing in the retracted position. | 03-12-2009 |
| 20090177163 | REDUCED FRICTION CATHETER INTRODUCER AND METHOD OF MANUFACTURING AND USING THE SAME - Tear-away sheath introducers for catheters, methods for making such introducers, and methods for using such introducers are described. The sheath introducers contain movable valves that are encapsulated in a movable housing that allows the valve to move along the axis of the introducer. As the movable valve and housing travel along the axis, a portion of the hub protrudes past the valve and is exposed. As well, the sheath introducers can also contain a stationary valve and housing that can be opened to expose a portion of the hub when a conduit penetrates the stationary valve. The conduit can include a one-way valve actuator that can penetrate and open the valve, yet remain attached to a portion of the introducer when the introducer is split for removal from a patient. In both instances, the protruding portion of the hub contains a friction-free pathway for a catheter into the sheath introducer. | 07-09-2009 |
| 20090076455 | Variable diameter tube for use in a vasal inserter for performing hemodinamics researches and related operations - A variable diameter tube for use in a vessel inserter for performing hemodynamics researches and related operations comprises two coupled different-characteristic materials which are coupled to one another to provide a single stretchable tube assembly. | 03-19-2009 |
| 20090112167 | SHEATHLESS INSERTION STYLET SYSTEM FOR CATHETER PLACEMENT - A stylet instrument is positionable within a catheter to facilitate placement of the catheter during a surgical procedure. The stylet instrument has application in a hemodialysis procedure where the catheter is positioned via a subcutaneous tunneling technique. The stylet instrument includes a hub, first and second stylet members extending from the hub and operatively connected to permit positioning within corresponding lumens of a catheter, and securing means associated with the hub to releasably secure the catheter to the hub. The securing means includes at least one locking detent. | 04-30-2009 |
| 20090240204 | INSTRUMENT SEAL WITH INVERTING SHROUD - A surgical access device comprising an instrument access channel extending through an instrument seal and a shroud comprising an inverting region disposed distally of the instrument seal exhibits improved tear-resistance of the instrument seal from instrument manipulation, for example, instrument withdrawals. Some embodiments of the inverting region invert through the instrument seal on instrument withdrawal. Some embodiments of the inverting region induce at least a portion of the instrument seal itself to invert on instrument withdrawal. | 09-24-2009 |
| 20080319396 | VALVE ASSEMBLY INCLUDING DIAMETER REDUCTION STRUCTURE FOR TROCAR - A surgical seal assembly includes a sleeve housing adapted to be operatively connected to a surgical sleeve, a seal housing adapted for releasable mounting to the sleeve housing and having a seal member with inner portions adapted to permit passage of a surgical object in substantial sealed relation therewith, and a manual lock member associated with the sleeve housing. The manual lock member is adapted for movement relative to the seal housing between a first position corresponding to a release position of the seal housing to permit removal of the seal housing from mounting to the sleeve housing and a second position corresponding to a lock position of the seal housing to secure the seal housing to the sleeve housing. The manual lock member is preferably adapted for rotational movement relative to a longitudinal axis of the seal housing to move between the first and second positions thereof. | 12-25-2008 |
| 604167040 | Slit valve | 22 |
| 20090292252 | Pressure Activated Valve for High Flow Rate and Pressure Venous Access Applications - A valve comprises a first housing including a first lumen extending therethrough and defining a first disk-facing surface and a second housing including a second lumen extending therethrough and defining a second disk-facing surface, the second housing being mated to the first housing so that the second disk-facing surface faces the first disk-facing surface in combination with a flexible disk gripped between gripping portions of the first and second disk-facing surfaces, the disk including a slit extending therethrough which, when acted upon by a fluid pressure of at least a predetermined threshold level opens to permit fluid flow between the first and second lumens and which, when acted upon by a fluid pressure less than the threshold level remains sealed preventing fluid flow between the first and second lumens and a relief well between opposing portions of the first and second housings radially outside the gripping portions, a width of the relief well exceeding a width of a radially outer portion of the flexible disk so that the radially outer portion of the disk is free to move therewithin. | 11-26-2009 |
| 20090287154 | RADIALLY COMPRESSIBLE BLOOD CONTROL VALVE - An apparatus to control blood flow through an intravenous catheter in accordance with the present invention may include an intravenous catheter adapter and a blood control valve. The blood control valve may be retained within a hollow interior region of the intravenous catheter adapter, and may include a resilient outer shell and an inner valve portion extending inwardly therefrom. The inner valve portion may include a slit configured to open, coin-purse style, upon radially compressing the resilient outer shell. In some embodiments, a compression feature may be integrated into the intravenous catheter adapter to radially compress the resilient outer shell. A Luer device, for example, may be inserted into the intravenous catheter adapter to translate the blood control valve to a position substantially corresponding to the compression feature, thereby actuating the compression feature to open the slit. | 11-19-2009 |
| 20100114033 | SURGICAL ACCESS DEVICE - The present disclosure relates to a surgical access device for use during a surgical procedure that includes a housing, an access member extending distally from the housing, and a valve that is at least partially disposed within the housing. The access member is dimensioned for positioning within tissue, defines a longitudinal axis and a longitudinal opening, and has proximal and distal ends. The valve has a passage for the reception of a surgical object, and includes a proximal collar segment, a distal tapered segment that extends contiguously from the proximal collar segment, and a fluid resistive shelf. The fluid resistive shelf is generally defined at a juncture of the proximal collar segment and the distal tapered segment. The fluid resistive shelf and the distal tapered segment cooperate to substantially minimize the egress of fluids from the operative site about the valve. | 05-06-2010 |
| 20150126935 | TROCAR ASSEMBLY - A surgical system comprising a cannula assembly and an obturator assembly for penetrating tissue is disclosed. A cover of the cannula assembly is mounted to a cannula housing and has a cover aperture therethrough. The cover has a trailing end face defining a predetermined geometrical configuration, at least a portion of the trailing end face is obliquely arranged relative to a longitudinal axis and terminates in, and leads toward the cover aperture to facilitate guiding of the surgical object through the cover aperture. The obturator assembly includes an obturator housing and an obturator member. The obturator housing has a housing base defining a leading end face, which defines a predetermined geometrical configuration corresponding to the predetermined geometrical configuration of the trailing end face of the cover to mate therewith upon assembly of the obturator assembly with the cannula assembly. | 05-07-2015 |
| 20090292253 | Vascular Guide Wire Introducer Assembly and Valve Therefor - A vascular guidewire introducer device ( | 11-26-2009 |
| 20100312190 | LOW INSERTION FORCE HEMOSTASIS VALVE FOR VASCULAR INTRODUCER - A hemostasis valve for a vascular introducer includes a valve body having a seal region with opposed first and second end surfaces and a central axis extending through the seal region perpendicular to the first and second end surfaces. The first end surface of the seal region has a first grouping of cut lines formed on the first end surface and extending radially outward from the central axis. The second end surface of the seal region has a second grouping of cut lines formed on the second end surface and extending radially outward from the central axis. The first circumferential grouping of intersecting cut lines is axially aligned with and angularly offset from the second circumferential grouping of cut lines. A pair of planar slits extend angularly away from each cut line in the first end surface, through the valve body, to a respective pair of oppositely adjacent cut lines in the second end surface. | 12-09-2010 |
| 20100274194 | TWO-WAY SLIT VALVE - A slit valve | 10-28-2010 |
| 20100241083 | HUB FOR TEARAWAY SHEATH ASSEMBLY - A tearaway sheath assembly ( | 09-23-2010 |
| 20100004600 | SURGICAL PORTAL APPARATUS WITH CENTERING MECHANISM - A surgical portal apparatus is provided. The surgical portal apparatus includes a portal member defining a longitudinal axis and having a longitudinal opening therethrough for receiving a surgical object, a seal member positioned along the longitudinal opening for receiving a surgical object in a sealing manner, and a centering mechanism maintained within the portal member, wherein the centering mechanism including a pair of rollers arranged in general diametrical opposed relation, the rollers movable relative to the longitudinal axis from a radial inward position to a radial outward position to permit passage of the surgical object, the rollers being biased toward the radial inward direction to correspondingly bias the surgical object in general alignment with the longitudinal axis. | 01-07-2010 |
| 20100004599 | ONE-WAY VALVE FOR TROCAR - An one-way valve for trocar is provided, which is mounted in the cavity of the end portion of the trocar sheath tube ( | 01-07-2010 |
| 20100234807 | HEMOSTASIS VALVE - A tearaway sheath assembly ( | 09-16-2010 |
| 20100185153 | VALVE BODY AND MEDICAL TOOL - A valve body is formed from an elastic member in the form of an elliptic or circular film (disk shape) having an upper face and a lower face. The valve body has an opening and closing section which is opened and closed in response to insertion and pulling out of a dilator and is formed from a first slit, a second slit, a second concave portion and two third concave portions. A pair of ribs and six projections are formed on the lower face side of the valve body. The ribs are disposed in opposing relationship to each other with the second slit interposed therebetween and extend along the lower face. Further, the projections are disposed such that they are positioned on the inner side of the ribs and are opposed to each other with the second slit interposed therebetween. | 07-22-2010 |
| 20100179480 | VALVE BODY AND MEDICAL TOOL - A valve body formed from an elastic member in the form of an elliptical or circular film (disk shape) has upper and lower surfaces. A first concave portion is formed on the upper surface side of the valve body. The valve body further has an opening and closing section which is opened and closed in response to insertion and pulling out of a dilator and is formed from a first slit, a second slit, a second concave portion and two third concave portions. The second concave portion is formed at a portion of the concave surface side of the valve body corresponding to an intersecting portion, and the third concave portions are formed at the opposite end portions of the first slit. The second concave portion extends, in a thickness wise direction of the valve body, to an intermediate portion of the first slit but not to the second slit. | 07-15-2010 |
| 20090259186 | ACCESS ASSEMBLY WITH MULTI-FLAPPER DESIGN - An apparatus for the reception of an instrument inserted through a surgical portal apparatus includes a valve mount, a major opening through the valve mount, a primary valve for selectively sealing the major opening, a minor opening through the primary valve, and a secondary valve for selectively sealing the minor opening. Components of both the major valve and the minor valve may be displaced to permit passage of a broad instrument, while components of only the secondary valve may be displaced to permit passage of a narrow instrument. | 10-15-2009 |
| 20140074035 | CANNULA SEAL - A cannula seal is presented. The cannula seal includes a cap portion that fits over a cannula and a valve portion. The valve portion includes an hourglass seal and a cross slit seal. In some embodiments, the cap portion includes a tab. In some embodiments, the cap portion and the valve portion are integrally formed. In some embodiments, the cap portion and the valve portion are joined at a bonding region, which may include overflow traps. In some embodiments, ribs are included. | 03-13-2014 |
| 20150289903 | Valved Sheath Introducer for Venous Cannulation - A valved sheath introducer for venous cannulation, including a valve, sheath, handle and cap. The valve is configured to permit safe introduction and removal of medical instruments through the sheath introducer. The valve may have one or more anchoring members and a thickened central portion through which a slit is formed. The central portion may have one or more concave surfaces and the slit can be angled with respect to the top surface of the valve. The cap is attached to the handle, compressing a portion of the valve therebetween. | 10-15-2015 |
| 20110295208 | Sealing Valve - A vascular guidewire introducer device ( | 12-01-2011 |
| 20110282287 | TRANSAPICAL MINI-INTRODUCER HOMEOSTASIS VALVE AND PUNCH - An introducer for providing access to the interior of the heart generally includes a valve, a shaft, and a piercing element. The valve has a substantially closed state in the absence of an instrument inside the valve and an open state in the presence of the instrument inside the valve. The shaft has first and second ends. The piercing element is located at the first end of the shaft. The shaft is removably positioned inside the valve in an assembled condition. The valve is dimensioned to receive the instrument therein upon removal of the shaft from the valve. | 11-17-2011 |
| 20160022121 | OUTER TUBE - The outer tube includes two insertion holes which are formed in a cross-sectional D-shape via a partition wall provided in the central part in a cross-section vertical to respective axial directions of the insertion holes. A slit of a valve body located in the insertion hole is disposed along reference line passing through centers of respective arcs of the insertion holes as seen from the axial directions of the insertion holes. Therefore, two leaflets of the slit abut on an arc edge of the insertion hole and a D-shaped cut part of the partition wall respectively when the insertion part of the treatment tool is internally fitted, and they are deformed into the same shape. Since there is no difference in stress applied to two leaflets, it is possible to secure the airtightness by the slit over a long period of time. | 01-28-2016 |
| 20090012476 | HEMOSTASIS VALVE FOR A CATHETER INTRODUCER - A catheter introducer valve comprising a body having an upper surface and a lower surface; a rim having a portion thereof extending beyond the upper surface and a portion thereof extending beyond the lower surface; a substantially conical depression formed in the body extending from an outer portion proximate to the upper surface and tapering toward an inner portion; an aperture formed in the body coaxial with the conical depression, the aperture having a conical first portion, a second portion comprising a first slit coaxial with the first portion and extending from the conical depression inner portion into the body, a third portion comprising a slit flaring outward from and at least partially intersecting the aperture first portion toward the bottom surface; a first thickened portion associated with the bottom surface; and, a second thickened portion associate with the bottom surface and generally perpendicular to the first thickened portion. | 01-08-2009 |
| 20090143739 | Tearaway sheath assembly with split hemostasis valve - A tearaway sheath assembly ( | 06-04-2009 |
| 20090018508 | Tearaway Sheath Assembly with Hemostasis Valve - A tearaway sheath assembly ( | 01-15-2009 |
| 604167050 | Rotatable type valve (e.g., stopcock etc.) | 5 |
| 20140207070 | HEMOSTASIS VALVE WITH ROLLER SEAL - A hemostasis valve has a housing having proximal and distal ends defining proximal and distal openings configured for passage of a medical device therethrough. The housing further defines a cavity between the proximal and distal ends. One or more rollers are received within the cavity and define end sections and a central section having a smaller diameter than the end sections. Sleeves are disposed about the rollers and are elastically deformable to form a fluid seal around the device. The sleeves each assume a first form when the device is absent from the cavity wherein a radially inner surface of the sleeve is located at a first distance from the central section of a roller and a second form when the device is present in the cavity wherein the surface is located at a second distance, less than the first distance, from the central section of the roller. | 07-24-2014 |
| 20140221932 | CATHETER INTRODUCER ASSEMBLY - The present invention relates to a valve assembly for sealing a through passage of a catheter introducing device, comprising a sealing unit having a movable closing member connected to a biasing means, and a seat member arranged with a sealing surface around the aperture of the through passage, wherein the biasing means is arranged to urge the closing member to sealably abut against the sealing surface, corresponding to a closed position, so as to prevent flow of fluid through the valve. The invention also relates to a catheter introducer assembly comprising a valve assembly. | 08-07-2014 |
| 20120046611 | INTEGRAL INSUFFLATION VALVE - A trocar assembly includes a trocar valve body defining a cavity. The assembly includes a rotatable valve handle that is elongated and has a first end and a second end. The first end is sized and configured to be rotatably maintained within the cavity and the second end extends outwardly so as to be actuatable by a user. The rotatable valve handle defines a lumen therethrough which extends longitudinally from the first end to the second end. The valve body defines an outlet that communicates with the cavity. The rotatable valve handle is rotatable from an open position, in which the lumen is at least partially aligned with the outlet so as permit fluid to pass through the lumen, and a closed position, in which the lumen is not aligned with the outlet so as prevent fluid to pass through the lumen. | 02-23-2012 |
| 20110166527 | CENTER TWIST HEMOSTATIC VALVE - The invention comprises a hemostatic valve apparatus used in medical procedures that provides a valve that is always sealed. The valve apparatus incorporates a double twist and a rotation member placed between the ends of the valve. Because the valve is never fully opened, either no fluids or an insignificant amount of fluids will flow when used in surgical or interventional procedures. The invention also comprises a valve conduit with first and second fixed ends and a rotatable member positioned between the first and second ends. | 07-07-2011 |
| 20080275399 | Perfected 3 Way Stopcock - A 3-way stopcock which is intended for sanitary use comprising a body or nucleus ( | 11-06-2008 |
