Having Flow Closing Or Opening Means (e.g., Plug, Cap, Seal, Etc.) Patents (Class 604/256)
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Patent number: 7033339Abstract: An improved luer lock receiving septum having a configuration which provides rapid and tight resealing and yet allows penetration of the septum by the luer tip with a low penetration force. The elongated septum includes an upper portion of enlarged diameter having a target surface, a central slit, and a central, lower septum extension projecting about the slit below the upper portion and into a housing so that following luer insertion there is provided sufficient room for both the laterally displaced extension of the septum, the luer taper, and the housing to be received into a conventional luer lock connector. The septum is further preferably configured to minimize or eliminate the negative pressure deflection normally associated with the withdrawal of the large diameter luer cannula from an enclosed fluid filled lumen or chamber, by substantially isolating the lumen or chamber from the septum material displacement resultant from luer insertion.Type: GrantFiled: August 8, 2000Date of Patent: April 25, 2006Assignee: Becton Dickinson and Company (part interest)Inventor: Lawrence A. Lynn
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Patent number: 7025744Abstract: A medical device has an interior for containment of fluids; an opening into the interior, an elastomeric wall comprising a fixedly placed, flexible barrier across the opening; and a retention wall positioned adjacent to a peripheral portion of the elastomeric wall. The retention wall defines a central opening and has a generally rigid retention zone surrounding the central opening, to engage and retain a connector tube which is advanced into the central opening to displace the elastomeric wall and to open a flow aperture through the elastomeric wall, for flow through the wall and connector tube. One of the retention zone and connector tube are made of a material of sufficient hardness that material of the other engaging member is deformed by engagement therewith, which increases the strength of retention between the retention wall and the connector tube.Type: GrantFiled: October 4, 2002Date of Patent: April 11, 2006Assignee: DSU Medical CorporationInventors: David S. Utterberg, William J. Schnell, David Bell
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Patent number: 7013181Abstract: A lead assembly includes insulative tubing with at least one tine coupled thereto, and a lumen extends through the tubing. The tine has a first position that extends away from the exterior of the tubing, and a second compressed position. In the second compressed position, the tine at least partially compresses the lumen.Type: GrantFiled: December 23, 2002Date of Patent: March 14, 2006Assignee: Cardiac Pacemakers, Inc.Inventor: Randy Westlund
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Patent number: 7011314Abstract: A seal assembly used in combination with a trocar assembly to maintain sealing engagement with the exterior surface of medical instrument, which may have different size diameters, introduced into the trocar assembly so as to maintain adequate insufflation pressure within a body cavity accessed by the trocar assembly. The seal assembly includes a seal member and is structured to permit free movement of the seal member at least radially within a chamber of a seal housing which may be attached to or part of the trocar housing. The seal member and the sealing chamber are cooperatively dimensioned to maintain at least the periphery of an outer surface of the seal member in surrounding relation to an inlet port of the chamber and thereby maintain seal engagement between corresponding interior surfaces of the chamber and the corresponding outer surfaces of the seal member.Type: GrantFiled: April 28, 2003Date of Patent: March 14, 2006Assignee: Taut, Inc.Inventor: Richard H. McFarlane
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Patent number: 7011094Abstract: A flow control device includes a sealing component that can be positioned within a bronchial lumen. The sealing component can comprise two or more overlapping segments that are movable relative to one another such that the segments collectively form a seal that can expand and contract in size to fit within and seal bronchial lumens of various sizes.Type: GrantFiled: July 25, 2003Date of Patent: March 14, 2006Assignee: Emphasys Medical, Inc.Inventors: Alan Rapacki, Michael Barrett
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Patent number: 7008406Abstract: A needleless injection site comprising a housing defining proximal and distal ends and including a reseal member disposed therein. The reseal member has an elastically openable and closable aperture formed therein, and normally resides within the housing in a closed position wherein the aperture is in a closed configuration. The reseal member is deformable such that the application of distally directed pressure thereto will cause the reseal member to distally advance within the housing to an open position wherein the aperture assumes an open configuration. The removal of the distally directed pressure from the reseal member will cause it to resiliently return to the closed position wherein the aperture assumes the closed configuration.Type: GrantFiled: October 30, 2003Date of Patent: March 7, 2006Assignee: Becton, Dickinson and CompanyInventor: Bruno Franz P. Mayer
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Patent number: 6994315Abstract: An improved needle-free intravenous injection port assembly is disclosed. Embodiments include a boot valve with a helical surface, a boot valve and septum which mate with mechanical interference, a spike with a rough outer surface coated with a lubricant, a septum having a shoulder and a single continuous swabbable surface, a septum and a boot valve which are pre-punctured with a solid core steel needle, a septum with a frustroconical extension and a combination single piece septum and boot valve. The injection port assembly provides neutral fluid displacement during coupling and uncoupling.Type: GrantFiled: January 13, 2004Date of Patent: February 7, 2006Assignee: Rymed Technologies, Inc.Inventors: Dana Wm. Ryan, David P. Gordon, James M. Kaiser, Frank A. Scarfone
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Patent number: 6972001Abstract: A fluid delivery system for delivery of an injection fluid to a patient generally includes a first pump system, a second pump system, a patient interface in removable fluid connection with the first and second pump systems, and a fluid path in fluid connection between the first and second pump systems and the patient interface. The fluid path preferably includes a housing member defining a first inlet, a second inlet and an outlet. The first and second pump systems are placed in fluid connection with the respective first and second inlets of the housing member and the patient interface is placed in removable fluid connection with the outlet of the housing member. A first check valve is in fluid connection between an outlet of the first pump system and the first inlet of the housing member, and a second check valve is in fluid connection between an outlet of the second pump system and the second inlet of the housing member.Type: GrantFiled: March 1, 2004Date of Patent: December 6, 2005Assignee: Medrad, Inc.Inventors: Michael F. Emig, Klaus Urich, Frederick Trombley, III, Joseph B. Havrilla, Edward J. Rhinehart, Gerald W. Callan
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Patent number: 6932795Abstract: A closed system, spikeless, positive-flow valve device includes a body defining an internal cavity. At the proximal end of the body is an opening which is preferably sufficiently large to receive an ANSI standard tip of a medical implement. The valve includes a plastic, resilient silicon seal which fills the upper cavity and opening with an oval seal cap having a slit. The opening presses the oval seal cap to keep the slit closed in the decompressed state. The slit opens as the nose of the medical implement compresses the seal into the cavity and the seal cap is free from the opening. The housing also includes a fluid space which facilitates fluid flow between the medical implement and a catheter tip.Type: GrantFiled: June 5, 2002Date of Patent: August 23, 2005Assignee: ICU Medical, Inc.Inventors: George A. Lopez, Thomas F. Fangrow, Jr., David C. Arnold, Bruce M. Hubrecht, Alison D. Brummett, Thomas J. Gustus, Dennis M. Bui
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Patent number: 6916331Abstract: A skin seal or trocar stabilizer with an inflatable balloon in the shape of a dumbbell, where the balloon may be stored within a cannula for easy placement in an incision and inflated to deploy the balloon inside the body, and a portion of the balloon expands inside the cannula, whereby medical instruments may be passed through the skin seal into a laparoscopic workspace while the balloon is inflated, thereby allowing the use of normal short surgical instruments during laparoscopic procedures and during insufflation.Type: GrantFiled: May 15, 2003Date of Patent: July 12, 2005Assignee: General Surgical Innovations, Inc.Inventors: Kenneth H. Mollenauer, Michelle Y. Monfort
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Patent number: 6908459Abstract: A needleless luer access connector is disclosed having a septum disposed in a housing. The septum has a proximal portion with a cross section, a medial portion with a cross section smaller than the cross section of the proximal portion, and a distal portion. A longitudinal slit extends through the septum from the proximal portion to the distal portion. The septum and housing are designed so that septum will not be rotated or removed from the housing when the connector is accessed by a male luer taper. In addition, the septum and housing are designed to bias the slit at the distal portion closed and so a male luer connector does not have to extend completely through the distal portion to open the slit at the distal portion. Finally, the septum and housing are designed to minimize the amount of dead space in the connector when accessed with a male luer taper.Type: GrantFiled: December 7, 2001Date of Patent: June 21, 2005Assignee: Becton, Dickinson and CompanyInventors: Weston F. Harding, Carolyn E. Brown, Kelly D. Christensen, Tom M. Miner, Ralph L. Sonderegger
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Patent number: 6883778Abstract: A medical valve for valving fluid includes a housing defining a chamber having an inlet, an outlet, and an interior wall, a compressible member within the chamber, and a fluid channel defined by the interior wall. The fluid channel directs fluid received from the inlet toward the outlet.Type: GrantFiled: January 6, 2000Date of Patent: April 26, 2005Assignee: Nypro Inc.Inventors: Brian L. Newton, Charles F. Ganem
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Patent number: 6880801Abstract: A connector or a connector assembly comprises a fitting, a resilient sealing member, a plurality of protrusions, and a removable stripout layer. The fitting includes a socket. The protrusions extend from the fitting and are connectable to a mating connector. The resilient sealing layer, which is disposed in the socket of the fitting, includes a hollow body having opposite open ends and an internal passage extending between the open ends. The removable stripout layer is movable between a first position in which the stripout layer overlies an end of the resilient sealing member and a second position in which the stripout layer is removed from the end of the resilient sealing member.Type: GrantFiled: October 16, 2003Date of Patent: April 19, 2005Assignee: Pall CorporationInventors: Vlado Ivan Matkovich, Thomas J. Bormann, Gerald R. Delgiacco, Mladen Franovic
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Patent number: 6866656Abstract: A lubrication system is disclosed which minimizes friction and that is useful for application on the surface of a flexible portion of a medical device. Such a lubrication system includes a lubricant that is able to move when the flexible portion of the medical device flexes and is biocompatible and is not degraded by the application of alcohol or other conventional medical sterilizing and cleaning agents. The lubricant is bonded to the surface of the flexible portion of the medical device. The lubrication system may be used on an elastomeric septum, such as a silicone rubber elastomer. The lubricant coating may be any type of coating that can be chemically bonded to the elastomer, such as di-paraxylene, poly-(p-xylene), polytetrafluoroethylene, or polyvinylpyrrolidone.Type: GrantFiled: January 24, 2002Date of Patent: March 15, 2005Assignee: Becton, Dickinson and CompanyInventors: Kevin Tingey, Steven W. Johnson, E. Robert Purdy, Douglas P. Orr, Min-Shiu Lee
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Patent number: 6858137Abstract: A closure element for sterile closure of connections, in particular connections of filter modules for dialysis, hemofiltration or ultrafiltration is described. A closure element with a simple design that provides a reliable seal is formed by having the closure element include a wall with an automatically closing slit-shaped indentation which when closed creates a germ-proof seal. The sealing element is used for sterile closure of connections of medical items, as well as for the medical items themselves.Type: GrantFiled: January 18, 2002Date of Patent: February 22, 2005Assignee: Fresenius Medical Care Deutschland GmbHInventors: Uwe Hahmann, Christian Sauerwald, Klaus Heilmann, Gerhard Breith, Steffen Fritzsche
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Patent number: 6846303Abstract: A prefilled syringe of cartridge barrel having a tamper evident closure. Tamper evidence is provided by: a frangible tip seal which is integral with the tapered tip of the barrel; a frangible tip cap covering the tip, the tip seal and a portion of the distal end of the barrel; and an overwrap covering the frangible tip cap and the distal end of the barrel sealed to the distal end of the barrel by a tamper evident seal. The tapered tip is optionally equipped with a luer collar to receive an external luer connector. Alternatively, the tapered tip can be provided with a bore therethrough which can be closed with an elastomeric plug and the external connector can be a tubing conduit.Type: GrantFiled: February 9, 2004Date of Patent: January 25, 2005Assignee: Bracco Diagnostics Inc.Inventors: Michael N. Eakins, Ernest Balestracci, Ernst Schramm, John J. Niedospial Jr.
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Patent number: 6843780Abstract: A valve arrangement is described for providing clinical nutrition. The arrangement comprises a split flushing valve. Also described are a method of production of the valve arrangement, use of the valve arrangement in providing nutrition to a patient and a method of treatment of a patient that comprises administering an effective amount of a composition via the valve arrangement.Type: GrantFiled: July 17, 2002Date of Patent: January 18, 2005Assignee: Nestec S.A.Inventors: Ignacio Larrain, Michael Jedwab
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Patent number: 6840501Abstract: A needless valve is described which avoids the suctioning problems of the prior needleless devices upon deactivation and which preferably provides a positive self-purging effect. The valve is self-purging at the end of an administration cycle, avoiding clogging of attached catheters or other devices, and ensures that substantially all of liquid received into the valve is delivered to the receiver. The valve is also extremely simple in design and easy to construct and assemble, since it consists of only three pieces. The valve has a base with a connector for fluid communication attachment to tubing or other device, a solid elongated fluid channeling rod, and an internal fluid flow conduit; a flexible hollow expandable and contractible plug fitting over and moveable along the rod; and a tubular housing fitting over the plug and attached to the base.Type: GrantFiled: March 26, 2003Date of Patent: January 11, 2005Assignee: ALARIS Medical Systems, Inc.Inventor: Mark Christopher Doyle
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Publication number: 20040260249Abstract: A catheter is provided having a plurality of fluid entry ports formed therein and in communication with an inner lumen of the catheter. One or more of the fluid entry ports includes a fluid-permeable barrier extending there across. In a preferred embodiment, a set of conductive members is embedded in the wall of the catheter and connects each barrier to a control unit. In the event of blockage in the catheter, an external power source can non-invasively command the control unit to transmit an electric current to one or more of the barriers to dissolve or otherwise remove the barrier, thereby allowing fluid to once again flow through the catheter.Type: ApplicationFiled: June 23, 2003Publication date: December 23, 2004Applicant: CODMAN & SHURTLEFF, INC.Inventor: Sigmund Kulessa
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Patent number: 6827709Abstract: A mixing/charging port for medical treatment in which no air bubble is retained inside thereof even at the time of priming, and which is capable of infusing a drug solution or transfusing blood into a patient safely.Type: GrantFiled: September 25, 2001Date of Patent: December 7, 2004Assignee: JMS Co., Ltd.Inventor: Ryoji Fujii
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Patent number: 6811139Abstract: A connector is provided which has a fluid passage whose volume does not substantially vary with the opening/closing of a valve disc. The connector includes a substantially cylindrical connector main body, a valve disc made of elastic material and disposed at one of the opening ends of the connector main body, and a substantially cylindrical connecting member disposed on the outer periphery of the connector main body on the side of the valve disc and coaxially with the connector main body to be movable in an axial direction of the connector main body.Type: GrantFiled: October 25, 2002Date of Patent: November 2, 2004Assignee: Terumo Kabushiki KaishaInventor: Yoshinori Hishikawa
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Publication number: 20040215130Abstract: An agent delivery device includes an inner tubular body having a proximal end, a sharpened distal end, a delivery lumen extending therebetween, and one or more outlet ports on the distal end communicating with the delivery lumen. The device also includes one or more seals sealing the one or more outlet ports, the one or more seals capable of being melted to allow a fluid to be delivered from the delivery lumen through the one or more outlet ports. The agent delivery device may further include a monopolar or bipolar electrode and/or a radio-opaque marker carried at the distal end of the device. The inner tubular body can be made from a conductive material to thereby allow the inner tubular body to function as an electrode.Type: ApplicationFiled: May 13, 2004Publication date: October 28, 2004Applicant: Scimed Life Systems, Inc.Inventors: Robert Rioux, Paul DiCarlo
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Publication number: 20040204689Abstract: A catheter system for fluid connection between a patient's vasculature and a fluid system that has a luer lock connector including a luer tip. The catheter system includes a catheter having a hub having an open end sealed with an elastomeric septum. The hub defines a female luer sized to be received into and locked to the connector of the fluid system when the luer tip is advanced into the septum. A needle extends through at least a portion of the septum, the needle having a tip projecting adjacent the catheter tip and a needle hub disposed adjacent the outer face of the septum. The needle is removable from the catheter and septum after the catheter is advanced into a blood vessel. The elastomeric septum seals subsequent to withdrawal of the hollow needle to provide a sealed outer face for engaging and receiving the luer tip.Type: ApplicationFiled: April 27, 2004Publication date: October 14, 2004Inventor: Lawrence A. Lynn
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Publication number: 20040199126Abstract: A needleless luer access connector is disclosed having a septum disposed in a housing. The septum has a proximal portion with a cross section, a medial portion with a cross section smaller than the cross section of the proximal portion, and a distal portion. A longitudinal slit extends through the septum from the proximal portion to the distal portion. The septum and housing are designed so that septum will not be rotated or removed from the housing when the connector is accessed by a male luer taper. In addition, the septum and housing are designed to bias the slit at the distal portion closed and so a male luer connector does not have to extend completely through the distal portion to open the slit at the distal portion. Finally, the septum and housing are designed to minimize the amount of dead space in the connector when accessed with a male luer taper.Type: ApplicationFiled: April 21, 2004Publication date: October 7, 2004Inventors: Weston F. Harding, Carolyn E. Brown, Kelly D. Christensen, Tom M. Miner, Ralph L. Sonderegger
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Publication number: 20040181192Abstract: A vascular access device and method of using is disclosed. The vascular access device includes a housing defining a cavity and adapted to connect to a catheter. A self-sealing injection port and a subhousing are also provided. The subhousing may be movably connected to the housing so that a position of the other end of the subhousing relative to the housing can be selectively adjusted within a range of positions. A unidirectional fluid valve permits solution flow from the subhousing to the housing. The vascular access device may be utilized in a variety of treatment protocols including medication administration, fluid sampling, and placement of balloon catheters or guide wire-based medical devices.Type: ApplicationFiled: March 10, 2004Publication date: September 16, 2004Inventor: Michael John Cuppy
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Patent number: 6789885Abstract: The invention pertains to a configuration for forming a ventilation aperture having a small cross section, whereby a sealing part is placed in a passageway and the ventilation aperture is formed between the sealing part and the inner wall of the passageway. In order to simplify manufacturing and, in particular, make possible the use of injection-molded plastic parts throughout, the invention suggests that the sealing part should have a cylindrical stopper that is made of an elastically deformable material and can be inserted into the passageway, and has in its surface shell at least one axially continuous, channel-like depression, the outside diameter of which, when in the unstressed state, is oversized in comparison with the inside diameter of the passageway.Type: GrantFiled: September 13, 2000Date of Patent: September 14, 2004Assignee: ARTECH GmbH design + production in plasticInventors: Helmut Michele, Dirk Klein, Peter Busch
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Patent number: 6783516Abstract: A trocar is disclosed which comprises a housing assembly having an upper end and a lower end and a cannula assembly attached to the lower end of the housing assembly to define an axial bore therethrough. The disclosed trocar also includes an obturator for sliding engagement in the bore. The housing assembly includes an access port formed on the upper end which is axially aligned with the bore of the trocar. Communication via the access port of the housing is regulated by a flapper valve having a closed position and a range of open positions. The flapper valve comprises a metal flapper door having a male/female configuration formed around the protrusion. In the closed position, the protrusion of the flapper door engages the male/female configuration of both door and port mesh resulting in a metal-to-metal seal across the access port. The metal-to-metal seal provides enhanced resistance to mechanical, heat, and chemical wear encountered during surgical and sterilization operations.Type: GrantFiled: November 13, 2001Date of Patent: August 31, 2004Assignee: NeoSurg Technologies, Inc.Inventors: Peter T. O'Heeron, Patrick C. Newlin
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Patent number: 6776774Abstract: An improved vascular introducer sheath having a hemostasis valve assembly which provides tailored distribution of compressive forces along one of the top and bottom edges of each slit to avoid puckering of the slit(s) and to provide balanced performance in terms of bi-directional sealing effectiveness and device movement therethrough.Type: GrantFiled: July 16, 2001Date of Patent: August 17, 2004Assignee: SciMed Life Systems, Inc.Inventors: William J. Tansey, Jr., Mark H. Van Diver, Eric Houde
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Patent number: 6767340Abstract: A sealing valve assembly is provided for medical products. The valve assembly includes a valve member mountable within a passageway of a medical product body element, the valve member defining a peripheral portion spaced from a central axis and including two walls extending from the peripheral portion toward the central axis, the walls including ends that contact each other to preclude flow through the passageway toward the second end. The valve member further includes at least one stiffening member extending from at least one of the walls to urge the valve member toward the closed position when disposed in the medical product.Type: GrantFiled: December 19, 2000Date of Patent: July 27, 2004Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Allan F. Willis, Alan Conlin
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Publication number: 20040133171Abstract: A medical valve having an open mode to permit fluid flow and a closed mode to prevent fluid flow has a body and a valving element within the interior of the body. The body also has a valving element within its interior, and a proximal port and a distal port. The valving element controls fluid flow between the proximal and distal ports. Moreover, the valving element includes a resilient member and a plug. The resilient member forms a variable sized fluid chamber within the interior of the body, while the plug cooperates with the gland to provide an internal seal (within the interior of the body) that is spaced from the proximal port. The plug is capable of radially expanding the resilient member when the valve transitions from the closed mode to the open mode. The fluid chamber has a larger volume when in the open mode than when in the closed mode.Type: ApplicationFiled: October 16, 2003Publication date: July 8, 2004Inventors: Brian L. Newton, Andrew L. Cote
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Publication number: 20040127855Abstract: A hemostasis valve includes a single gland with multiple offset longitudinal slits that do not extend through the gland completely. The multiple slits form a complex pathway for the guide dilator/catheter and thus a better seal. The offset slits are joined by a lateral cut in the gland. When a guide wire or dilator/catheter is introduced into the introducer, the gland deforms sufficiently to allow the guide wire or other device to move through the first slit, the lateral cut and the second slit. This complex pathway or slit provides a larger sealing surface thereby creating a better seal. As a result, effective seals may be formed around relatively large, as compared to the inner diameter of an introducer sheath, catheters.Type: ApplicationFiled: October 9, 2003Publication date: July 1, 2004Applicant: NMT Medical, Inc.Inventor: Lee A. Core
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Patent number: 6755806Abstract: According to the invention, the lumen channel, which passes through a guide catheter and an insertion valve, said insertion valve being connected to said guide catheter, is also provided with a shut-off device at a certain point. Said shut-off device enables the lumen to be closed off by means of clamping. In the clamped position, the shut-off device therefore prevents blood from escaping from the insertion valve when it is necessary to open said insertion valve, for example, in order to introduce a treatment catheter.Type: GrantFiled: January 20, 2000Date of Patent: June 29, 2004Inventor: Wolf von Casimir
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Publication number: 20040102738Abstract: 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.Type: ApplicationFiled: November 26, 2002Publication date: May 27, 2004Applicant: Medical Ventures, L.L.C.Inventors: W. Cary Dikeman, Thomas J. Solomon, Kerry L. Spiker
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Patent number: 6740063Abstract: A catheter system for fluid connection between a patient's vasculature and a fluid system that has a luer lock connector including a luer tip. The catheter system includes a catheter having a hub having an open end sealed with an elastomeric septum. The hub defines a female luer sized to be received into and locked to the connector of the fluid system when the luer tip is advanced into the septum. A needle extends through at least a portion of the septum, the needle having a tip projecting adjacent the catheter tip and a needle hub disposed adjacent the outer face of the septum. The needle is removable from the catheter and septum after the catheter is advanced into a blood vessel. The elastomeric septum seals subsequent to withdrawal of the hollow needle to provide a sealed outer face for engaging and receiving the luer tip.Type: GrantFiled: October 15, 2002Date of Patent: May 25, 2004Inventor: Lawrence A. Lynn
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Patent number: 6726663Abstract: A modular trocar assembly having a cannula, a passive valve seal assembly and an instrument seal assembly all releasably joined to define a central axial bore, where the passive valve seal assembly contains a valve seal which prevents passage of gas through the trocar assembly into the atmosphere when no instrument is inserted but which opens to allow for insertion of an instrument, and where the instrument seal assembly contains an instrument reducer seal which prevents passage of gas through the trocar assembly into the atmosphere when an instrument is inserted through the valve seal. The passive valve seal assembly and the instrument seal assembly are preferably composed of plastic so as to be disposable, while the cannula is preferably composed of a sterilizable material to enable reuse.Type: GrantFiled: March 10, 2000Date of Patent: April 27, 2004Assignee: ConMed CorporationInventor: William G. Dennis
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Patent number: 6726652Abstract: A prefilled syringe of cartridge barrel having a tamper evident closure. Tamper evidence is provided by: a frangible tip seal which is integral with the tapered tip of the barrel; a frangible tip cap covering the tip, the tip seal and a portion of the distal end of the barrel; and an overwrap covering the frangible tip cap and the distal end of the barrel sealed to the distal end of the barrel by a tamper evident seal. The tapered tip is optionally equipped with a luer collar to receive an external luer connector. Alternatively, the tapered tip can be provided with a bore therethrough which can be closed with an elastomeric plug and the external connector can be a tubing conduit.Type: GrantFiled: October 7, 2002Date of Patent: April 27, 2004Assignee: Bracco Diagnostics, Inc.Inventors: Michael N. Eakins, Ernest Balestracci, Ernst Schramm, John J. Niedospial, Jr.
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Publication number: 20040073176Abstract: A medical device has an interior for containment of fluids; an opening into the interior, and an elastomeric wall having at least one perforation. The wall comprises a fixedly placed, flexible barrier across the opening. The device also defines a passageway extending inwardly from adjacent to the elastomeric wall, the passageway being proportioned to receive and form an annular seal with a connector tube that extends into the interior through the perforation.Type: ApplicationFiled: July 3, 2003Publication date: April 15, 2004Inventor: David S. Utterberg
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Publication number: 20040068239Abstract: A medical device has an interior for containment of fluids; an opening into the interior, an elastomeric wall comprising a fixedly placed, flexible barrier across the opening; and a retention wall positioned adjacent to a peripheral portion of the elastomeric wall. The retention wall defines a central opening and has a generally rigid retention zone surrounding the central opening, to engage and retain a connector tube which is advanced into the central opening to open a flow aperture through the elastomeric wall, for flow through the wall and connector tube. One of the retention zone and connector tube may be made of a material of sufficient hardness that material of the other engaging member is deformed by engagement therewith, which increases the strength of retention between the retention wall and the connector tube.Type: ApplicationFiled: April 25, 2003Publication date: April 8, 2004Inventors: David S. Utterberg, William J. Schnell, David Bell
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Publication number: 20040068238Abstract: A medical device has an interior for containment of fluids; an opening into the interior, an elastomeric wall comprising a fixedly placed, flexible barrier across the opening; and a retention wall positioned adjacent to a peripheral portion of the elastomeric wall. The retention wall defines a central opening and has a generally rigid retention zone surrounding the central opening, to engage and retain a connector tube which is advanced into the central opening to displace the elastomeric wall and to open a flow aperture through the elastomeric wall, for flow through the wall and connector tube. One of the retention zone and connector tube are made of a material of sufficient hardness that material of the other engaging member is deformed by engagement therewith, which increases the strength of retention between the retention wall and the connector tube.Type: ApplicationFiled: October 4, 2002Publication date: April 8, 2004Inventors: David S. Utterberg, William J. Schnell, David Bell
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Patent number: 6712786Abstract: A single-use preassembled medical device for administering at least two drugs in preset proportions to patients, comprising at least one pair of independent injectors and at least one pair of piercing couplings for corresponding bottles containing the drugs which are reciprocally connected by corresponding tubes which lead into a single tube for infusion to a patient; at least one of the piercing couplings is of a conventional type and the second one is of a dedicated type, forming a conveniently provided small cup-shaped receptacle for the precision insertion of the neck of a bottle of a preset drug whose dimensions are likewise correspondingly smaller than those of a normal bottle.Type: GrantFiled: June 8, 2001Date of Patent: March 30, 2004Assignee: Sidam di Azzolini Graziano E C. S.a.s.Inventor: Graziano Azzolini
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Patent number: 6712796Abstract: A valve has a flow restrictor positioned outside of a lumen of a tube, which transitions between an open configuration and a closed configuration. The valve further contains a closing mechanism that automatically positions the flow restrictor to the closed configuration when a pressure in a fluid within the lumen is below a low threshold pressure, and an opening mechanism that automatically positions the first flow restrictor to the open configuration when the pressure in the fluid within the lumen is above a high threshold pressure that is higher than the low threshold pressure. The flow restrictor is preferably positioned outside the tube, although it may be positioned inside the wall of the tube, or even within the lumen of the tube. There may also be a second, downstream flow restrictor. The opening and closing mechanisms advantageously comprise a magnet or solenoid. The tube may comprise a catheter, and especially a urinary catheter.Type: GrantFiled: December 15, 2000Date of Patent: March 30, 2004Inventors: Robert Fentis, Kirk Buhler
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Patent number: 6712789Abstract: An introducing apparatus includes an elongate tubular sheath having an external diameter, and the sheath has a bore including an internal diameter sized to receive a dilator therethrough. The sheath includes at least one tab extending away from a longitudinal axis of the sheath. A movable valve assembly is movably engaged with the tab, where the moving valve is adapted to move from a first position to a second position. In the first position the moving valve is disposed through the longitudinal axis of the sheath. In the second position the moving valve assembly is disposed away from the longitudinal axis of the sheath.Type: GrantFiled: July 13, 2000Date of Patent: March 30, 2004Assignee: MedAmicus, Inc.Inventors: Michael Lange, Mark C. Kraus
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Patent number: 6709418Abstract: A cannula assembly (120) provides access to an interior body region (22). The cannula assembly defines a lumen (24) having a distal region (30). The lumen includes a bend in the distal region to guide deployment in the body region. A closure assembly (44, 46, 48) can be provided to open, and close the cannula assembly to fluid flow.Type: GrantFiled: April 16, 2001Date of Patent: March 23, 2004Assignee: A-Med Systems, Inc.Inventors: Walid N Aboul-Hosn, William R Kanz, Roland W Zieglier, Kelly J McCrystle, Rosalind Castor, Allan deDios
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Patent number: 6706022Abstract: A needleless connector for medical use, adapted to facilitate the flow of fluid therethrough, includes a housing having an inlet port and an outlet port. The connector also includes a flex-tube assembly defining a fluid path between the inlet port and the outlet port. The flex-tube assembly is movable between uncompressed and compressed states. The flex-tube assembly has a first internal volume when in the uncompressed state and a second internal volume, greater than or substantially equal to the first internal volume, when in the compressed state.Type: GrantFiled: July 27, 1999Date of Patent: March 16, 2004Assignee: ALARIS Medical Systems, Inc.Inventors: Karl R. Leinsing, Theodore J. Mosler
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Patent number: 6702787Abstract: A seal assembly for reception of an elongated surgical instrument is provided which includes a body having at least one opening configured and dimensioned to permit entry of an elongated surgical instrument and defining a central longitudinal axis; a seal member formed of a resilient material and defining an aperture therein, the aperture being configured and dimensioned such that insertion of the surgical instrument into the aperture causes the resilient material defining the aperture to resiliently contact the outer surface of the surgical instrument in a substantially fluid tight manner; and a fabric layer juxtaposed relative to the resilient material. A coating may be applied to the seal member to reduce friction between the seal member and surgical instrumentation inserted therein. The coating is preferably a hydrocyclosiloxane membrane prepared by plasma polymerization process.Type: GrantFiled: June 6, 2002Date of Patent: March 9, 2004Assignee: Tyco Healthcare Group LPInventors: David C. Racenet, Gene A. Stellon, William J. Vumback, Joseph Pasqualucci
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Patent number: 6699219Abstract: A fluid delivery system for delivery of an injection fluid to a patient generally includes a pump system to pressurize the injection fluid, a patient interface in removable fluid connection with the pump system, and a connector in fluid connection between the pump system and the patient interface. The pump system is connected to an inlet of the connector, and the patient interface is removably connected to an outlet of the connector. The connector includes a sealing member at least partly disposed within a housing of the connector that is biased to close the outlet when the patient interface is removed.Type: GrantFiled: October 28, 2002Date of Patent: March 2, 2004Assignee: Medrad, Inc.Inventors: Michael F. Emig, Klaus Urich, Frederick Trombley, III, Joseph B. Havrilla, Edward J. Rhinehart, Gerald W. Callan
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Patent number: 6699225Abstract: A mixing/charging port for medical treatment capable of cleanly wiping out a residual liquid, residual blood, or the like. The mixing/charging port includes a disk-like valve having an insertion hole at the center, a seating for supporting a lower part of the periphery of the valve, and a cover for restraining the valve. A fitting hole defined by an inner edge portion of the cover works as an anchor for anchoring an insertion member to the mixing/charging port, the thickness of the center of the valve is larger than the thickness of the periphery of the valve, and the thickness of the edge portion of the cover provided with the fitting hole substantially corresponds to the difference between the thickness of the center of the valve and the thickness of the periphery of the valve.Type: GrantFiled: September 25, 2001Date of Patent: March 2, 2004Assignee: JMS Co., Ltd.Inventor: Ryoji Fujii
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Publication number: 20040039341Abstract: An improved protective cap and method for capping medical male luer fittings is provided. The protective cap may include inner and intermediate annular members extending from an end wall and defining a slot therebetween. At least one and preferably a plurality of depressible members project from an outer surface of the inner annular member, wherein the depressible member(s) conforms to the internal threads of a male luer fitting upon interconnection. For such purposes, the depressible member(s) may comprise a resilient material, e.g. most preferably having a modulus of elasticity of between about 5000 psi and 20000 psi. Each depressible member may be of an arcuate configuration in cross-section to present a convex surface for depressible engagement by the collar of a male luer fitting when positioned in the annular slot. The protective cap may be readily employed in automated capping/uncapping procedures via direct linear advancement/retraction relative to a male luer fitting.Type: ApplicationFiled: August 22, 2002Publication date: February 26, 2004Inventor: Joseph V. Ranalletta
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Patent number: 6695820Abstract: A bleed back control assembly for controlling blood loss during catheterization procedures includes a side arm body having a proximal end engaging and retaining a cap assembly and a seal assembly. The seal assembly includes a single elastomeric bleed back seal. The bleed back seal has an aperture and is normally closed. The bleed back seal self-sizes to devices introduced through the aperture. The cap assembly includes a funnel cap having a dilator. Depressing the funnel cap causes the dilator to open the aperture in the bleed back seal. A spring, wound around the dilator, biases the funnel cap to its original position. The side arm body includes a secondary branch having a lumen, and a finger rest on the exterior of the secondary branch.Type: GrantFiled: November 16, 2001Date of Patent: February 24, 2004Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Kenneth K. Armstrong, Vito Foggetti, Charles R. Peterson, Albert A. Quinones
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Publication number: 20040034325Abstract: A medical valve has a body and a flexible element. The body includes a wall structure defining an internal cavity having an inside and an outside. The body also has a proximal end and a distal end. The proximal end has an opening sufficiently large to receive a tip of a delivery end of a medical implement which transfers fluid through the delivery end. The body has a fluid escape space in its wall structure. The flexible element is adapted to be moved into a compressed state upon insertion of the tip of the medical implement into the opening. The flexible element is sufficiently resilient to return to a decompressed state upon removal of the tip of the medical implement from the opening. The fluid escape space is in fluid communication with the outside of the cavity when the seal is in its compressed state.Type: ApplicationFiled: August 13, 2003Publication date: February 19, 2004Inventor: George A. Lopez