Having Means To Prevent Fluid Return To Reservoir Patents (Class 604/213)
  • Patent number: 9937292
    Abstract: A transfer device for filing a fluid reservoir of a fluid infusion device with a fluid is provided. The transfer device comprises a first end to couple to a source of the fluid, and a second end to couple to a pressurizing device. The transfer device also comprises a body interconnecting the first end and the second end, and having an end to couple to the fluid reservoir. The body defining at least one fluid flow path between the source of the fluid, the pressurizing device and the fluid reservoir to enable the filling of the fluid reservoir with the fluid.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: April 10, 2018
    Assignee: MEDTRONIC MINIMED, INC.
    Inventors: Sherif M. Ali, Thomas P. Miller, Vaughn S. Sakae, Edgardo C. Halili
  • Patent number: 9901682
    Abstract: A medical syringe apparatus includes a syringe unit, a hypodermic needle attached to the syringe unit and at least one interfacing member for mating a labeled medication container to the syringe unit. A filling needle is attached to the syringe unit for drawing fluid from a container. A movable needle sheath protects the hypodermic needle when not in use and may be moved out of the way when administering an injection. The medication label is visible. The container remains mated to the syringe when the syringe is in use. Risk of mislabeling the syringe may therefore be substantially reduced or eliminated and patient safety may accordingly be improved.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: February 27, 2018
    Inventor: Yair Grinberg
  • Patent number: 9844630
    Abstract: A locking mechanism is provided for use with a reservoir and a reservoir holder so as to prevent unwanted tampering with the reservoir. The mechanism comprises a main body with an aperture that is coupled to the reservoir. A hinged flange is provided on the main body. The flange folds inwards at the pivot point provided by the hinge, toward the aperture of the main body, allowing the mechanism to pass over the ferrule of the reservoir. Once the mechanism is placed over the cartridge, the flange folds toward the reservoir at the pivot point, flexing away from the main body. The flange rests against the underside of the reservoir ferrule, thereby retaining the reservoir within the locking mechanism. The locking mechanism may be for use with either a disposable or a reusable delivery device.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: December 19, 2017
    Assignee: Sanofi-Aventis Deutschland GmbH
    Inventors: Richard James Vincent Avery, Aled Meredydd James
  • Patent number: 9259536
    Abstract: An automatic injection syringe assembly having an integrated and fillable medicine container that includes a medicine container within a housing and a conduit assembly. The medicine container includes a piston having an aperture at a distal end thereof for the passage of fluid therethrough. The conduit assembly includes a conduit member that is releasably connected to the housing and has an open proximal end and an open distal end. The open distal end of the conduit member is releasably engaged with the piston and in fluid communication with the piston aperture. The open proximal end and the open distal end of the conduit member are m fluid communication via a conduit within the conduit member.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: February 16, 2016
    Assignee: West Pharmaceutical Services, Inc.
    Inventors: Richard David Gillespie, III, Doug Owen Crow
  • Publication number: 20150112263
    Abstract: The present disclosure relates to fluid delivery devices for supplying a fluid, e.g., a flush medium, to a medical device, e.g., a vascular access device, inexpensively. The fluid delivery device includes a collapsible body defining a fluid reservoir and a connector for securing the fluid delivery device to the medical device. The collapsible body can include a bellows or pleated structure. In addition, structure including levers or plungers can be provided to collapse the body.
    Type: Application
    Filed: April 25, 2013
    Publication date: April 23, 2015
    Inventors: Kathleen Tremblay, Scott M. Jones, Gregory A. Steube, Stephen B. Earheart, Kevin R. Martz, Mark Baker
  • Patent number: 8968257
    Abstract: A coded cartridge holder system is disclosed for use with a cartridge assembly (20) containing a fluid and a delivery device (10), where the system has keyed connectors (5, 5?, 6, 6?) to prevent accidental attachment of the wrong fluid delivery device (10). The system comprises a coupling (1) attachable to the dose setting portion (12) of the device (10) and keyed to the proximal end of the cartridge holder (14). The cartridge holder (14) may also contain medical coding (27, 28) to correspond to matching coding (27?, 28?) on the distal end of a cartridge assembly (20).
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: March 3, 2015
    Assignee: Sanofi-Aventis Deutschland GmbH
    Inventors: Uwe Dasbach, Steffen Raab, Michael Harms, Udo Stauder, Volker Korger
  • Patent number: 8905970
    Abstract: A high pressure delivery device for delivering a medicament includes a first chamber for storing a supply of the medicament and a second chamber in fluid communication with the first chamber. A fluid connection path is in fluid communication with the second chamber for administering the medicament. A valving system is in fluid communication with the first chamber, the second chamber and the fluid connection path. The valving system allows a dose of the medicament to be injected from the first chamber into the second chamber while substantially preventing backflow of the dose into the first chamber and substantially preventing leakage through the fluid connection path. The valving system also allows the dose in the second chamber to be administered through the fluid connection path while substantially preventing the dose from flowing back into the first chamber.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: December 9, 2014
    Assignee: Becton, Dickinson and Company
    Inventors: James Bates, Robert Banik, Barry Ginsberg
  • Patent number: 8529513
    Abstract: A device for administering an injectable substance, the device including a housing, a translation member moveable in a translation direction, a rotation member rotatably moveable about a rotation axis and coupled to the translation member to support the translation member counter to the translation direction, a rotary bearing including a bearing body bearing the rotation member rotatably about the rotation axis, the rotary bearing having support surfaces for supporting the rotation member axially on the bearing body, and a device for reducing play whereby at least two support surfaces are brought into contact with a pressing force, thereby reducing an axial play of the rotary bearing.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: September 10, 2013
    Assignee: Roche Diagnostics International AG
    Inventors: Daniel Peter, Simone Gafner-Geiser
  • Patent number: 8444027
    Abstract: A one way valve assembly flows a sterile flowable substance from a source to an outlet orifice and prevents any backflow of contaminants through the one way valve assembly when the flowable substance ceases to flow. The valve assembly includes an elastomeric membrane which aids in preventing any backflow of contaminants when dispensing of the flowable substance is stopped.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: May 21, 2013
    Assignee: ReSeal International Limited Partnership
    Inventors: Greg Pardes, Stewart Swiss
  • Publication number: 20120266876
    Abstract: The invention relates to a medicament container (2), comprising a bag (3) with an outlet (4), the bag (3) compressible by a compression means (6), the bag (3) having an inner surface arranged to stick when subjected to the compression means (6). The invention also refers to an arrangement (1) for administering a liquid medicament (M) comprising the medicament container (2) and a compression means (6) for locally compressing the bag (3).
    Type: Application
    Filed: August 20, 2010
    Publication date: October 25, 2012
    Applicant: SANOFI-AVENTIS DEUTSCHLAND GMBH
    Inventors: Thomas Nagel, Rene Richter, Robert Witt
  • Patent number: 8221414
    Abstract: An apparatus for treatment of tissue within a body requiring thermotherapy includes a catheter to be inserted into a bodily conduit, an energy-emitting source disposed within the catheter, a compression balloon surrounding the energy-emitting source where the compression balloon has an inflated diameter that is greater than that of the bodily conduit in a relaxed state and an outside surface of the balloon is coated with one of gene modifiers and drug or medication, and means for activating the energy-emitting source to radiate energy to heat the drug-coated compression balloon and tissue to be treated whereby the heated drug-coated compression balloon effectively delivers the one of the gene modifiers and drug or medication to a target area of the diseased tissue. In addition, methods for using the above apparatus to treat diseased tissue are disclosed.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: July 17, 2012
    Assignee: Boston Scientific Corporation
    Inventor: John Mon
  • Patent number: 8177757
    Abstract: A piston adapter, which can be easily removed even when it is mounted on a piston member of a rodless syringe and pressed in a cylinder member, is provided. In piston adapter 200, when manual operation member 230 is manually rotated relative to adapter rod 210, adapter shaft 220 is also rotated to turn the trailing end of flange engagement member 240 engaging with an engagement open/close mechanism near leading end of the flange engagement member, thereby piston adapter 200 can be easily put on and removed from the piston member of the rodless syringe its leading end by manually operating the trailing end of piston adapter 200.
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: May 15, 2012
    Assignee: Nemoto Kyorindo Co., Ltd.
    Inventors: Shigeru Nemoto, Takashi Saitoh
  • Patent number: 8118780
    Abstract: A hand-held remote for a medical fluid injector includes a syringe and a conduit which may be coupled to a pressure transducer on a control circuit of the injector. Movement of a plunger within a syringe body on the syringe creates a pressure which is sensed by the pressure transducer and the control circuit responds to the sensed pressure by causing fluid to be ejected from, or drawn into, a syringe mounted to the injector. The pressure developed by the remote provides tactile feedback to an operator for improved control over injections.
    Type: Grant
    Filed: August 23, 2004
    Date of Patent: February 21, 2012
    Assignee: Liebel-Flarsheim Company LLC
    Inventors: Frank M. Fago, James E. Knipfer, Charles S. Neer
  • Patent number: 8087553
    Abstract: A one way valve assembly flows a sterile flowable substance from a source to an outlet orifice and prevents any backflow of contaminants through the one way valve assembly when the flowable substance ceases to flow. The valve assembly includes an elastomeric membrane which aids in preventing any backflow of contaminants when dispensing of the flowable substance is stopped.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: January 3, 2012
    Assignee: ReSeal International Limited Partnership
    Inventors: Greg Pardes, Stewart Swiss
  • Patent number: 7997460
    Abstract: A reusable continuously sealing one-way valve assembly and delivery system flows a sterile flowable substance from a source to an outlet orifice and prevents any backflow of contaminants through the continuously sealing one way valve assembly when the flowable substance ceases to flow. The valve assembly includes an elastomeric membrane which aids in preventing any backflow of contaminants when dispensing of the flowable substance is stopped. Multiple dosing of preservative-free flowable substance is provided.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: August 16, 2011
    Assignee: ReSeal International Limited Partnership
    Inventors: Greg Pardes, Stewart Swiss, Ilan Hofman, Wesley Domareki
  • Publication number: 20110146671
    Abstract: The present invention provides a pharmaceutical composition comprising a chemical compound or a herb extract or the combination having at least one of the activities of antiviral, antibacterial, antifungal, anti-inflammatory, anti-allergy, anti-cancer, promoting membrane healing or immunomodulating, for the treatment and prevention of a disease of a mammal. The present invention also provides a system for delivering the composition to the hard-to-reach sinuses of a mammal to reduce the load of the pathogen, to reduce the amount of inflammatory mediators, to heal pathological changes, and collectively to treat a disease of a mammal, such as allergic fungal rhinosinusitis. The invented method of treating a human disease reduces infectious and inflammatory agents without causing antibiotic resistance or adverse event.
    Type: Application
    Filed: November 24, 2007
    Publication date: June 23, 2011
    Inventors: James Zhou Liu, Lixin Lilly Zhang
  • Patent number: 7874467
    Abstract: A reusable continuously sealing metered dosing one-way valve assembly and delivery system flows a premeasured amount of a sterile flowable substance from a source which is coupled to an actuator assembly to an outlet orifice and prevents any backflow of contaminants through the continuously sealing one way valve assembly when the flowable substance ceases to flow. The valve assembly includes an elastomeric membrane which aids in preventing any backflow of contaminants when dispensing of the flowable substance is stopped. Multiple dosing of preservative-free flowable substance is provided.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: January 25, 2011
    Assignee: ReSeal International Limited Partnership
    Inventors: Greg Pardes, Stewart Swiss, Paul Mulhauser, Lyndon T. Treacy
  • Patent number: 7819845
    Abstract: A syringe plunger/jacket assembly may comprise a flexible jacket attached to a rigid plunger. The jacket may comprise at least two sealing rings (front and rear) that prevent fluid from leaking out of the rear of the barrel during injection of fluid from the syringe. The rear sealing ring may or may not contact or seal the interior surface of the syringe barrel in an unloaded state. In the loaded state, when force is applied in the direction of the forward discharge end of the syringe, pressure is created on the jacket. This condition causes the rear seal to expand and contact and/or seal the interior surface of the syringe barrel.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: October 26, 2010
    Assignee: Coeur, Inc.
    Inventor: J. Michael Cude
  • Patent number: 7651481
    Abstract: A self-sealing male connector device for connection with a female Luer connector. The device has an elongated male body configured with lengthwise relatively rigid and flexible wall segments cooperating to allow the body to be radially compressed from an expanded configuration to a contracted configuration. A closure cap formed with a resealable aperture is disposed on the distal end of the male body so as to be responsive to the compression of the male body. The relatively flexible wall segments may be installed within notches in the male body or be formed integral with the relatively rigid wall segments.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: January 26, 2010
    Assignee: CareFusion 303 Inc.
    Inventor: John Raybuck
  • Patent number: 7513396
    Abstract: A one way valve assembly flows a sterile flowable substance from a source to an outlet orifice and prevents any backflow of contaminants through the one way valve assembly when the flowable substance ceases to flow. The valve assembly includes an elastomeric membrane which aids in preventing any backflow of contaminants when dispensing of the flowable substance is stopped.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: April 7, 2009
    Assignee: ReSeal International Limited Partnership
    Inventors: Greg Pardes, Stewart Swiss
  • Patent number: 7306129
    Abstract: A one way valve assembly flows a sterile flowable substance from a source to an outlet orifice and prevents any backflow of contaminants through the one way valve assembly when the flowable substance ceases to flow. The valve assembly includes an elastomeric membrane which aids in preventing any backflow of contaminants when dispensing of the flowable substance is stopped.
    Type: Grant
    Filed: November 3, 2005
    Date of Patent: December 11, 2007
    Inventors: Stewart Swiss, Greg Pardes
  • Patent number: 7144385
    Abstract: For safely inserting a catheter into a chest cavity of a child or corpulent patient to be retained therein and for preventing atmospheric air from proceeding into the chest cavity during a removal of a penetrating needle, discharge equipment for medical procedures is provided which equipment includes a connector cap and a storage bottle detachably connectable to each other, a connector to be connected to the catheter retained in the patient, a check valve including an outer periphery covered by a protective cover and being openable only toward a storage bottle side, and a coupling device to the storage bottle mounted on the connector cap. The storage bottle is a hollow container including an inlet port and a discharge port, a detachably connecting device for the connector cap mounted on the inlet port, and a check valve openable only toward an exterior of the storage bottle is mounted on the discharge port.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: December 5, 2006
    Assignee: Sumitomo Bakelite Company Limited
    Inventors: Yoshifumi Matsuura, Tomohiro Isono, Yukihiko Sakaguchi
  • Patent number: 7074210
    Abstract: Disclosed is a medical device used to prevent the cross-contamination of patients or injectors in which various components placed on the injector minimize or eliminate back splash contamination of the injector.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: July 11, 2006
    Assignee: Felton International, Inc.
    Inventors: Nathaniel J. Leon, Victor T. Rogatchev, Michael Mathews
  • Publication number: 20040059300
    Abstract: A single use syringe and a plunger rod locking device for such a syringe are provided. The locking device and plunger rod include features that cause the plunger rod to be locked with respect to the syringe barrel upon completion of an injection stroke. A cutting member is provided at the distal end of the locking device. The cutting member will penetrate, and thereby disable the stopper affixed to the plunger rod in an attempt to retract the plunger rod following the injection stroke. The locking device includes barbs for engaging the syringe barrel.
    Type: Application
    Filed: September 25, 2002
    Publication date: March 25, 2004
    Inventors: Anthony J. Kosinski, Gene Fleischer, Marcos Calucho
  • Publication number: 20040059294
    Abstract: A single use syringe and a plunger rod assembly for such a syringe are provided. The syringe includes features that cause the plunger rod to be locked with respect to the syringe barrel upon completion of an injection stroke. The locking device may include barbs for engaging the syringe barrel and relatively long, proximally extending legs. The legs include barbs for engaging the syringe barrel and end portions for engaging the plunger rod. The plunger rod assembly includes a recess defined by converging surfaces, the recess being displaced from the longitudinal axis thereof. A locking element that fits a smaller syringe can thereby be used in a larger syringe as well.
    Type: Application
    Filed: September 25, 2002
    Publication date: March 25, 2004
    Inventors: Brian J. Pelkey, Gene Fleischer
  • Patent number: 6626869
    Abstract: The present invention comprises a device for advancing a guide wire into a blood vessel of a patient, which comprises a housing from a distal end of which extends a needle hub support having a blood aspiration canal extending along its length; a syringe chamber located in the housing; a passageway extending between the blood aspiration canal and the syringe chamber for the passage therethrough of aspirated blood; a switch mounted for sliding movement along a surface of the housing and having attached thereto a cannula for movement therewith; the switch being formed with a through hole aligned with the cannula and the blood aspiration canal for the passage therethrough of a guide wire; the arrangement being such that movement of the switch towards the distal end of the housing will cause the cannula to block the passage of blood along the passageway between the blood aspiration canal and the syringe chamber.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: September 30, 2003
    Assignee: Becton Dickinson Critical Care System PTE Ltd.
    Inventor: Stephen Bint
  • Patent number: 6605064
    Abstract: Disclosed is a single-use syringe comprising a needle housing, a bore-containing fluid-delivery needle and a volume-containing element. The needle housing has a top surface to which the volume-containing element is attached, a needle attachment side to which the bore-containing needle is attached, and a fluid delivery channel in communication between the top surface and the needle attachment side. The volume-containing element is fluid-tight but for communication with the fluid-delivery and a filling port. Embodiments are disclosed which include vapor-permeable portions which facilitate lyophilization of materials in situ.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: August 12, 2003
    Inventor: Thomas Hatch
  • Patent number: 6394982
    Abstract: A fibrin glue applicator system (10) is provided for dispensing a first and a second protein solution which form a biological adhesive when intermixed on an application site. The fibrin glue applicator system (10) includes a coupler interface (16), a disposable loading unit (DLU) (14), and a housing (12) having a handle portion (20) which includes a trigger (22) operatively associated with a slide bar (36) for dispensing the solutions from the DLU (14). Each piercer (66) is fluid communication with one of the two cylinders (46) of the DLU (14) via a respective conduit (64) connected to a respective main conduit (60). A first one-way valve (68) is included within each conduit (64) to open, and close a path leading from the piercer (66) to the main conduit (60). A second one-way valve (70) is fixed within each main conduit (60) in proximity to each dispensing orifice to open, and close a path leading from each cylinder (46) to its corresponding dispensing orifice.
    Type: Grant
    Filed: January 31, 2000
    Date of Patent: May 28, 2002
    Assignee: United States Surgical Corporation
    Inventor: Karl Ehrenfels
  • Patent number: 5879336
    Abstract: The invention relates to a portable and non-implantable device to enable a patient to self-administer, on demand, successive doses of a liquid while ensuring that the period of time between two successive administrations cannot be less than a reference value. The device has a liquid reservoir formed in a piston which can be pushed in a chamber to expel the contents of the chamber via an injection outlet and which is returned in the opposite direction by a return. The liquid reservoir communicates with the inside of the chamber via a passage formed through the piston and is provided with a flow rate limiter so that the time required to fill the chamber corresponds to a reference value. The invention is suitable for medical applications.
    Type: Grant
    Filed: March 12, 1996
    Date of Patent: March 9, 1999
    Assignee: Vygon
    Inventor: Thierry Brinon
  • Patent number: 5836484
    Abstract: A dispensing cartridge is designed to dispense multiple doses of a flowable material from a collapsible container, i.e., from a container of the type which does not produce an internal vacuum as the flowable material is dispensed. The cartridge has a housing for protecting a delivery block enveloped by an elastic sheath. The delivery block receives the flowable material from the collapsible container through an input port and delivers it through an internal channel with branches to at least one output port. Sleeve valves are created at the output port or ports by the sheath. In a preferred embodiment an end of the sheath forms an outlet valve downstream of the sleeve valves.
    Type: Grant
    Filed: October 3, 1996
    Date of Patent: November 17, 1998
    Inventor: Bernard R. Gerber
  • Patent number: 5772665
    Abstract: Device for mixing a pharmaceutical composition stored in a chamber (44) in said device with an agent to be added shortly before administration to form a preparation to be adminstered. The device should be capable of being shaken without leaking. It comprises a hollow body (2) having an outlet (4) sealed by a removable closure (12) and a plunger (6), which is slidable therein in sealing contact with the inner wall of the hollow body (2). The plunger (6), the hollow body (2) and the removable closure (12) define said chamber (44). An actuating means (22) is connected to the plunger (6) for displacing the same in the hollow body (2). A filling conduit (19) for said agent is connected to the chamber (44). A check valve (30) is associated with the conduit (19) and the chamber (44), which prevents flow from the chamber (44) but permits flow into said chamber through said conduit (19).
    Type: Grant
    Filed: November 14, 1997
    Date of Patent: June 30, 1998
    Assignee: Astra Aktiebolag
    Inventors: H.ang.kan Lars Christer Glad, Tore Anders Kers, Mats Anders Ruden
  • Patent number: 5484913
    Abstract: A calcium-modified oxidized cellulose hemostat provides faster hemostasis than does either unmodified or sodium- or potassium-modified oxidized cellulose. The percentage by weight of calcium in the modified oxidized cellulose must be in a range between about 0.5 and about 4, in order to enhance hemostasis, while not interfering excessively with bioabsorbability. In a second embodiment, an oxidized cellulose hemostat is modified with both calcium and either sodium or potassium. The second embodiment may be used to deliver acid-sensitive materials.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: January 16, 1996
    Assignee: Johnson & Johnson Medical, Inc.
    Inventors: Reginald L. Stilwell, Elaine J. Whitmore, Lowell G. Saferstein
  • Patent number: 5474541
    Abstract: A re-usable nozzle for dispensing a flowable product from a resilient container has a removable one-way valve which facilitates cleaning and sterilisation of the nozzle. When the nozzle is used for dispensing a flowable pharmaceutical, the nozzle controls the amount of suck back of pharmaceutical into the nozzle on completion of dispensing. With a stand off of the valve float from the valve seat during dispensing of about one eighth of an inch (1) the suck back is sufficient to draw any drop of contaminated pharmaceutical at the tip of nozzle on completion of dispensing into the nozzle so as to reduce the risk of contamination of the environment and (2) the suck back is sufficiently small to minimize the risk of damage to any tissue with which the nozzle is intimately associated. Furthermore, with the distance from the valve seat to the nozzle tip being at least about three times the stand off, no contaminated pharmaceutical may enter the container so that the container may be re-used.
    Type: Grant
    Filed: August 31, 1993
    Date of Patent: December 12, 1995
    Assignee: Astra Pharma, Inc.
    Inventors: Anthony F. Ritsky, John E. Cameron, Tjalke K. Schuurmans, Russell L. M. Soobrian, Henryk Klakurka, Robert K. Watson, Christopher G. Szumilas
  • Patent number: 5342329
    Abstract: A portable, closed circuit, disposable device for post operatory surgical suction which comprised a bellows-shaped body receptacle for suctioned fluids, a threaded neck located on the upper surface of said bellows-shaped body suitable to receive a threaded cap; said cap being provided with a suction tube system connected through said cap into the bellows-shaped body, and said system of tubes is provided with a check-valve, wherein said bellows-shaped body is provided with a cannula in its lower surface, having a nearly rectangular longitudinal section, having a lower end wall, wherein the side wall of said cannula is provided with at least one opening located in a position close to said lower end wall of said cannula; where an elastic tube, with a longer extension than said cannula, is introduced under pressure in said cannula in order to close the at least one opening of said cannula, and wherein a tube of rigid or semi-rigid material is introduced in said cannula, fixing the elastic tube between its interio
    Type: Grant
    Filed: September 17, 1992
    Date of Patent: August 30, 1994
    Assignee: Inmed Ltda.
    Inventor: Raul J. Croquevielle
  • Patent number: 5269771
    Abstract: A needleless device for introducing or withdrawing a fluid to/from the vascular system of a being. The device includes first and second housing sections movably connected with respect to each other and which define a hollow interior in which a pair of resilient valve elements are located. The first housing section includes a first luer fitting for connection to an input line. The second housing section includes a second luer fitting for connection to an output line. A tubular plunger is located within the device and is arranged, when the housing sections are in a first position, to be automatically extended through a first valve element if the input line is connected to the first luer fitting, so that a liquid can be forced from the input line through the device to the output line. When the housing sections are in the first position and the input line disconnected from the first luer fitting, the tubular plunger is retracted out of both valve elements so that the device is fully occluded.
    Type: Grant
    Filed: February 24, 1993
    Date of Patent: December 14, 1993
    Assignee: Thomas Medical Products, Inc.
    Inventors: Joseph J. Thomas, David G. Catlin, Andrew Armour, Robert W. Thomas
  • Patent number: 5261881
    Abstract: A dispensing apparatus comprising a container adapted to house a fluid to be dispensed in sealed relation; an exposing member borne by the container for exposing the fluid for dispensing from the container through an opening; and a mount borne by the container adjacent to the exposing member operable to secure a needle or the like, through which the fluid can be passed, in fluid transferring relation to the opening of the container.
    Type: Grant
    Filed: March 9, 1992
    Date of Patent: November 16, 1993
    Assignee: R. Myles Riner, M.D., Professional Corporation
    Inventor: Robert M. Riner
  • Patent number: 5222948
    Abstract: An improved injection port (1) for a single-use syringe is described. One embodiment of the injection port has a one-way valve system for making it more difficult to reuse the syringe (2). The one-way valve system has a flap or diaphragm valve (6) housed in a valve chamber (11) at the proximal end of port cylinder (45). When the valve (6) is seated against valve seat (51) on valve cap (5), refilling of the syringe is blocked. During injection, the valve (6) unseats and moves toward radial ribs (7), allowing flow of medicament into the proximal end of a needle (2). Another embodiment of the injection port (1) includes longitudinal grooves (8) on the interior surface of the chamber (12) at the distal end of cylinder (45). The grooves (8) vent pressure from a Luer syringe inserted in the distal end of the cylinder (45).
    Type: Grant
    Filed: September 9, 1991
    Date of Patent: June 29, 1993
    Assignee: Path
    Inventors: Glenn Austin, Carib Nelson, Ronny D. Thomas
  • Patent number: 5219337
    Abstract: A liquid container comprises a container body (2) having an opening (12) and a liquid-containing portion (2a), the container body containing liquid (W) therein; a cap (3) integrally formed with or fixedly connected to the opening after the liquid is charged in the container body, the cap having a base portion (3a) continuous to the opening, a thin-wall portion (3b) continuous to the base portion, a top portion (3c) continuous to the thin-wall portion, and at least one horn plate portion (13) continuous to the top portion, the horn portion radially outwardly extending beyond the diameter of the top portion; a cap opener (5) provided around the cap to be rotatable with respect to the cap, the cap opener having at least one craw plate (15) radially inwardly extending from inner wall of the cap opener to be in contact with the horn plate when the cap opener is rotated, an opening (5d) being made in the cap opener so as to exhaust the liquid (W) therethrough after the thin-wall portion is cut by twisting the cap o
    Type: Grant
    Filed: July 30, 1991
    Date of Patent: June 15, 1993
    Assignees: Hashin Kasei Kogyo K.K., Ohta Pharmaceutical Co., Ltd.
    Inventors: Junichi Takata, Sigeru Yamana
  • Patent number: 5137177
    Abstract: An improved flexible wall dispensing tube is disclosed. The tube has a plurality of circumferential ridges along its length and a spherical plunger ball mounted inside near its sealed end. The outside of the tube is squeezed from the rear to push forward the plunger ball which then uniformly pushes the tube contents ahead of it while significantly preventing leakage back past the ball. As the plunger ball is pushed, or softly clicked, past the inside vertex of each groove formed between ribs, a stepwise uniform amount of tube contents is pushed out of the tube.
    Type: Grant
    Filed: March 11, 1991
    Date of Patent: August 11, 1992
    Inventor: Dale R. Willis
  • Patent number: 5067948
    Abstract: A vial holding syringe (84) includes a barrel (6) having a bore (12), a sealable needle end (8) and an open plunger end (10). A plunger (16) is mounted within the bore and includes an elongated hollow stem (18), having an interior (36) sized to hold a conventional vial (4), and a piston (20). The stem includes a hollow piercing member (46) having a piercing end (48), opposite the membrane (42) covering the vial ,and an outer end (50), adjacent a one-way valve (70) to permit passage of the medication (80) within the vial from the vial, through the hollow piercing member and through the one-way valve into a variable volume region (67) of the bore between the needle end of the barrel and the piston. An opening (14) at the needle end of the barrel is initially sealed by a cap (66). To use, the plunger is pulled part way from the bore to create a partial vacuum within the variable volume region. During this process, the diaphragm of the vial is driven onto the piercing end of the piercing member.
    Type: Grant
    Filed: September 27, 1990
    Date of Patent: November 26, 1991
    Assignee: Habley Medical Technology Corporation
    Inventors: Terry M. Haber, Clark B. Foster
  • Patent number: 4950254
    Abstract: A one way valve means for incorporation into a fluid administration set for enteral therapy which arrests retrograde movement of fluid into the set to avoid flow rate interruption or, in the event of extreme fluid back pressure, rupturing of the tubing in the set. The one way valve means is responsive to fluid back pressure and is incorporated in a male connector disposed on a distal end of the administration set tubing. As a result retrograde fluid movement caused by either irrigation or patient originated, fluid back pressure is immediately arrested before fluid enters the administration set.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: August 21, 1990
    Assignee: Corpak, Inc.
    Inventors: Erik Andersen, Charles Dillon
  • Patent number: 4828546
    Abstract: A bulb evacuator is provided for closed wound suction having a flexible compressible container with a pair of inlets having one way valves therein and a port to a suction source with a removable cap thereon at one end of the bulb evacuator. The opposite end of the bulb evacuator is provided with an integrally formed anti-reflux valve and a latching device surrounding the anti-reflux valve. A separate collection bag can be attached to the latching device so that when the bulb evacuator is filled with fluid from a closed wound, it can be compressed to force the fluid into the attached collection chamber and simultaneously creating a suction within the bulb evacuator to promote further withdrawal of fluids from the closed wound.
    Type: Grant
    Filed: August 21, 1987
    Date of Patent: May 9, 1989
    Assignee: Surgidyne, Inc.
    Inventors: Charles B. McNeil, Thomas J. McEvoy, Jeffery D. Dahlquist
  • Patent number: 4776848
    Abstract: The present invention involves a urethral fluid application device and system for insertion of fluids with backflow prevention. The device includes a tubular member having a feed port at one end and an outlet port at the opposite end, a unidirectional channel connecting the two ports and a one-way valve permitting flow only from the feed port to the outlet port. The device also includes a flange about the tubular member for contact with and attachment to the glans penis, as well as attachment means located on the flange. The system includes both the device and a supply container with a nozzle adapted to interconnect with the feed port of the device.
    Type: Grant
    Filed: July 20, 1987
    Date of Patent: October 11, 1988
    Inventor: Anthony Solazzo
  • Patent number: 4522622
    Abstract: A multiple fluid pulse dispenser comprising a plurality of interconnected fluid reservoirs defined by mating, oppositely directed concavities at least one of which mating concavity is formed from an invertable, preferrably permanently deformable blister. The reservoirs are in fluid communication with an outlet through which the contents of the reservoirs may be dispensed. A preferred embodiment permits fluid to flow through a reservoir after it has been discharged to allow random activation of the individual reservoirs.
    Type: Grant
    Filed: December 23, 1982
    Date of Patent: June 11, 1985
    Assignee: ALZA Corporation
    Inventors: John R. Peery, James B. Eckenhoff
  • Patent number: 4513891
    Abstract: A spray dispenser of the squeeze bottle type, for use in the administration of nasal sprays, comprises a squeeze bottle in combination with a spray dispenser head assembly consisting of a cap, and associated spray nozzle which functions as a two-way check valve and a dip tube for conveying liquid from the bottle to the spray nozzle. The head may optionally be fitted with an overcap for protecting the spray head from contamination when not in use.
    Type: Grant
    Filed: April 15, 1982
    Date of Patent: April 30, 1985
    Assignee: Sterling Drug Inc.
    Inventors: Robert W. Hain, Frederick B. Hadtke, Myron Paikoff
  • Patent number: 4392858
    Abstract: A wound drainage device is provided which includes a manually operable suction pump having inlet and outlet ports, and a pliable fluid storage bag having a pair of plastic sheets in face-to-face contact and an inlet. The pump inlet port is adapted to be connected to a wound suction catheter for removing drainage fluid from the wound. The pump outlet port is connectable to storage bag inlet for discharging drainage fluid into the storage bag without disconnecting the suction catheter. The bag has an upper foldable portion between the main storage portion and the bag inlet to close fluid communication to the bag and can serve as an added protection against drainage fluid flowing back to the suction pump. The storage bag can be used to receive drainage fluid and thereby provide a relatively large storage capacity without requiring a relatively large suction pump.
    Type: Grant
    Filed: July 16, 1981
    Date of Patent: July 12, 1983
    Assignee: Sherwood Medical Company
    Inventors: Robert D. George, Georgio di Palma