Gravity Feed To Body From Plural Material Reservoirs Patents (Class 604/80)
  • Patent number: 6602239
    Abstract: An infusion bag exhibiting an internal space which is surrounded by flexible walls, at least one outlet channel arranged through one of the walls for communication with the interior of the infusion bag, a communicating member integrated with the walls of the infusion bag which exhibits an opening accessible from the exterior of the infusion bag and an inlet channel which connects the opening with the interior of the infusion bag. An infusion system includes the infusion bag and a connecting member.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: August 5, 2003
    Assignee: Carmel Pharma AB
    Inventor: Pär Rönneklev
  • Patent number: 6595950
    Abstract: An apparatus and method for preventing free flow through an infusion set utilizes an occluder disposed within the infusion set to selectively prevent flow therethrough. The occluder may be responsive to a pressure differential within the infusion set or may respond to compression of the infusion set. When a pair of occluders are used in sequence, an in-line pump may be formed.
    Type: Grant
    Filed: May 11, 2000
    Date of Patent: July 22, 2003
    Assignee: Zevex, Inc.
    Inventors: Scott Miles, Kent F. Beck, James Malmstrom
  • Publication number: 20030114790
    Abstract: An in-line drug delivery pack that connects in-line with an intravenous (IV) line and allows for the mixing of diluent with a drug reagent to be delivered to the patient. An internal drug bed bypass mechanism is tailored to apportion diluent flow between the bypass and the drug bed. The apportionment is selected to achieve a solution concentration suitable for IV administration as the dried reagent is dissolved. Thus, both dissolution and precisely tailored dilution are performed in the same simple device.
    Type: Application
    Filed: February 3, 2003
    Publication date: June 19, 2003
    Inventor: Michael A. Taylor
  • Patent number: 6520932
    Abstract: An in-line drug delivery pack that connects in-line with an intravenous (IV) line and allows for the mixing of diluent with a drug reagent to be delivered to the patient. An internal drug bed bypass mechanism is tailored to apportion diluent flow between the bypass and the drug bed. The apportionment is selected to achieve a solution concentration suitable for IV administration as the dried reagent is dissolved. Thus, both dissolution and precisely tailored dilution are performed in the same simple device.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: February 18, 2003
    Assignee: Prismedical Corporation
    Inventor: Michael A. Taylor
  • Publication number: 20030023202
    Abstract: An apparatus for delivering aerosolized fibrin endoscopically to a wound is disclosed. The apparatus has a pair of syringes for holding fibrin precursors, a mixing chamber for mixing the fibrin precursors separately with pressurized gas to form individual aerosol solutions, and a delivery tube for delivery of the aerosol solutions to a remote surgical site for formation of an aerosolized fibrin seal.
    Type: Application
    Filed: July 26, 2001
    Publication date: January 30, 2003
    Inventor: David H. Nielson
  • Patent number: 6511456
    Abstract: An improved method for simultaneous intravenous delivery of multiple medications by use of prematched tubing between medication source and patient's IV.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: January 28, 2003
    Inventors: Terri L. Salinas, Gail Barton-Hay
  • Publication number: 20020193733
    Abstract: An in-line drug delivery pack that connects in-line with an intravenous (IV) line and allows for the mixing of diluent with a drug reagent to be delivered to the patient. An internal drug bed bypass mechanism is tailored to apportion diluent flow between the bypass and the drug bed. The apportionment is selected to achieve a solution concentration suitable for IV administration as the dried reagent is dissolved. Thus, both dissolution and precisely tailored dilution are performed in the same simple device.
    Type: Application
    Filed: August 6, 2002
    Publication date: December 19, 2002
    Inventor: Michael A. Taylor
  • Patent number: 6485454
    Abstract: Automatic infusion set for continuously infusing liquid medicine of double bottles, including a hollow circular barrel and a float-type sealing valve disposed in the circular barrel. The sealing valve has an I-shaped cross-section for reducing contacting area with inner wall of the circular barrel and preventing the sealing valve from attaching to the inner wall. A rubber-made membrane is disposed on each of two end faces of the sealing valve. An A bottle infusion catheter is passed through the circumference of a lower section of the circular barrel near the cap member at bottom end of the circular barrel, whereby the liquid medicine in double bottles can be automatic continuously infused and it is unnecessary to replace the exhausted drop bottle to save time. Moreover, the air in the vacant drop bottle is prevented from entering the vessels of a patient to lead to thrombosis.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: November 26, 2002
    Inventor: Sheng-Chi Yueh
  • Patent number: 6458104
    Abstract: An intravenous administration lines fastening and identification device includes a hollow cylindrical fastening member of resilient, flexible material. The cylindrical member has a full length longitudinal slit aperture. A plurality of tube holding members of resilient, flexible material, each with a cylindrical bore, are secured to the outer surface of the hollow cylindrical fastening member opposite the fastening member longitudinal slit aperture. Each tube holding member bore axis is oriented perpendicular to the fastening member longitudinal cylindrical axis. The tube holding members each have a full length slit aperture opposite the fastening member, with the slit aperture accessing the holding member cylindrical bore. An identification marking surface is present on the cylindrical member outer surface in register with and adjacent each tube holding member for identification of the IV tubing contents.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: October 1, 2002
    Inventor: Julie K. Gautsche
  • Publication number: 20020120230
    Abstract: An apparatus and method for preventing free flow through an infusion set utilizes an occluder disposed within the infusion set to selectively prevent flow therethrough. The occluder may be responsive to a pressure differential within the infusion set or may respond to compression of the infusion set. When a pair of occluders are used in sequence, an in-line pump may be formed.
    Type: Application
    Filed: April 12, 2002
    Publication date: August 29, 2002
    Inventors: Scott Miles, Kent F. Beck, James Malmstrom
  • Publication number: 20020120229
    Abstract: An apparatus and method for preventing free flow through an infusion set utilizes an occluder disposed within the infusion set to selectively prevent flow therethrough. The occluder may be responsive to a pressure differential within the infusion set or may respond to compression of the infusion set. When a pair of occluders are used in sequence, an in-line pump may be formed.
    Type: Application
    Filed: April 12, 2002
    Publication date: August 29, 2002
    Inventors: Scott Miles, Kent F. Beck, James Malmstrom
  • Patent number: 6428505
    Abstract: An in-line drug delivery pack that connects in-line with an intravenous (IV) line and allows for the mixing of diluent with a drug reagent to be delivered to the patient. An internal drug bed bypass mechanism is tailored to apportion diluent flow between the bypass and the drug bed. The apportionment is selected to achieve a solution concentration suitable for IV administration as the dried reagent is dissolved. Thus, both dissolution and precisely tailored dilution are performed in the same simple device.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: August 6, 2002
    Assignee: PrisMedical Corporation
    Inventor: Michael A. Taylor
  • Patent number: 6382568
    Abstract: A tube and wire organizer for medical situations is an aide to organize adjunctive equipment used by paramedical and medical people including an oxygen supply tube for an oxygen mask, EKG electrode wires, a defibrillator and wires and intravenous therapy supply tubes (IV drug therapy) the wires and tubes of which can be organized and kept separate by a separating block that has a plurality of channels along the top and removably closed by a hook/loop fastening strap across the top.
    Type: Grant
    Filed: July 26, 2000
    Date of Patent: May 7, 2002
    Inventor: Richard Snell
  • Patent number: 6375017
    Abstract: A tubing organizer apparatus includes a body member that extends radially outwardly from a central axis. The body member has opposite surfaces and a peripheral wall that is disposed between the opposite surfaces to define a thickness and extends circumferentially about the central axis. The peripheral wall includes a plurality of exterior wall segments facing outwardly relative to the central axis and a plurality of interior wall segments connected to the exterior wall segments. The plurality of interior wall segments are configured to form a corresponding plurality of notches extending inwardly between consecutive ones of the exterior wall segments and into the body member relative to the central axis. The tubing organizer apparatus might also include a support structure sized and adapted for rotatably mounting the body member thereto.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: April 23, 2002
    Assignee: Omnimed Acquistion Corp
    Inventors: Robert L. Schattner, Joseph Clarke, Kyle A. Jackson, Robert A. Zera, Dennis A. Hart
  • Patent number: 6332467
    Abstract: A Feeding tube spike set with integrated Y-port is disclosed. The preferred spike set includes a spike, a drip chamber, a y-port fitting, a stepped connector, and tubing connecting these components to one another in series. The y-port fitting further includes a body, a plug assembly and an undulating retaining member connecting the plug assembly to the body. The plug assembly further includes a plug from which a pair of tabs extend. The body also includes a flushing port formed within it; the preferred flushing port includes a plurality of ridges formed along it's bore to assist in retaining a secure seal between the inserted plug and the body.
    Type: Grant
    Filed: April 5, 2000
    Date of Patent: December 25, 2001
    Assignee: LH Medical Products, Inc.
    Inventors: Lonnie Hutson, Leonard Hoffstetter, Raymond D. Clark
  • Patent number: 6206850
    Abstract: A patient controllable drug delivery system including a metering device (30) having an intermittent dose reservoir (34) and a plunger, a main reservoir (26), a fill line (32connecting the main reservoir (26) and the intermittent reservoir (34) via a metering device fill point (26) and a flow regulating means (10) between the metering device (30) and the patient line (36), the flow regulating means (10) comprising a means for receiving and dispensing a dose of drug (12) and a pressure set one way valve (16), the intermittent dose reservoir (34) and the patient line (36) being in restricted fluid communication, dispensation of the drug being effected by pressure applied by the receiving and dispensing means (12). Systems for the supply of a continuous dose in addition to the patient controllable delivered dose, and a secondary delivery system are also disclosed.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: March 27, 2001
    Inventor: Alexander George Brian O'Neil
  • Patent number: 6102889
    Abstract: A sterile solution infusion apparatus having a first line to intake infusion liquid and transport it via two anti-syphon one way valves to an output end and having a branch intake line to the first line between the anti-syphon one way valves to allow the input under pressure of a different infusion feed.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: August 15, 2000
    Assignee: REM Systems Limited
    Inventor: Pieter Robert Wijnhoud
  • Patent number: 6024720
    Abstract: An improved fluid management system for irrigation of a body cavity and in particular for use in arthroscopic surgery having a pressurized fluid circuit for supplying irrigation fluid and a vacuum fluid circuit for withdrawing waste fluid from the cavity. In a preferred embodiment there is an uninterrupted fluid supply comprised of a plurality of sterile solution saline bags with an automatic spiker to perforate the bags. The system is processor controlled with numerous safety and design features to automate arthroscopy to the highest degree possible. Some of the features include the monitoring and tracking of cavity pressure and flow rates to predetermined pressure and flow rates, tracking cavity to mean blood pressure, overpressure protection, a plurality of pressure and flow rate baseline settings, monitoring, setting and controlling saline supply, and specialized functions for providing pressure and flow rates for typical surgical procedures such as lavage, clear view, and burr/shaver.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: February 15, 2000
    Assignee: Aquarius Medical Corporation
    Inventors: W. Jeffrey Chandler, John Kane, Michael J. Egan, Howard S. Phillips, James S. Roundy, Ernest W. Cassaday, Roger Etherington
  • Patent number: 5961488
    Abstract: A flow set which enables the sequential administration of two liquids from a pair of containers to a patient. The flow set has a pair of valve assemblies each in communication with a container. Each valve assembly has three ports communicating through a communication chamber; an inlet port being sealed with a first one-way valve allowing flow of liquid through it only into the chamber, an outlet port being sealed with a second one-way valve allowing flow of liquid through it only out of the chamber, and a pump communication port. A pair of inlet tubing segments each connect a container to the inlet port of a valve assembly. A connecting tubing segment connects the pump communicating ports of the two valve assemblies. An outlet tubing segment connects to the outlet port of each valve assembly for delivery of the liquid to the patient. A pump is connected to the connecting tubing segment. By reversing the pumping direction of the pump, liquid may be sequentially draw from one container or the other.
    Type: Grant
    Filed: February 26, 1998
    Date of Patent: October 5, 1999
    Assignee: Nestec S.A.
    Inventor: Swi Barak
  • Patent number: 5935100
    Abstract: A method and infusion set for consecutively draining liquid medicines from a plurality of containers, such as two containers (1, 2) containing said liquid medicines, the liquid medicine via a differential pressure valve (5a) is fed into a drip chamber (6), wherein the fluid flow is permitted initially from one container (1) by the higher fluid pressure and differential force area from the first container (1) on a diaphragm disk (15), whereby the fluid flow from the second container (2) is stopped and, later an automatic switch to a second container (2) as a source of fluid is effected when the fluid flow from the almost drained first container (1) is at a lower fluid pressure and a smaller differential force area and is exceeded by a higher fluid pressure of the second container (2) and the larger differential force area.
    Type: Grant
    Filed: February 13, 1997
    Date of Patent: August 10, 1999
    Inventor: Jan Willem Marinus Myers
  • Patent number: 5916201
    Abstract: An anti-cross contamination valve for use in medical fluid delivery systems comprises a valve housing having a first port, a second port, and a third port that open into a hollow interior. A valve body is rotatably mounted within the hollow interior and has at least one fluid passageway therethrough. A knob is attached to the valve body and extends outside of the valve housing. The at least one passageway includes a first fluid passageway that opens the first port to the third port when the valve body is rotated to a first position with respect to the valve housing. The second port is closed when the valve is in its first position. The at least one passageway also includes a second fluid passageway that opens the second port to the third port when the valve body is rotated to a second position with respect to the valve housing. The first port is closed when the valve is in its second position.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: June 29, 1999
    Inventors: Roland B. Wilson, Jr., Glenda A. Wilson
  • Patent number: 5902281
    Abstract: The present invention relates to a drip chamber for an intravenous infusion set. The invention also relates to a method of making drip chambers, and further, to an intravenous infusion set including a drip chamber. The invention is provided with a drip chamber comprising a housing defining a chamber to be located in a vertical position and including an inlet at the top and an outlet at the bottom; a first hydrophilic filter covering the outlet effective, when wet, to permit the flow therethrough of a liquid and to block the flow therethrough of air; and a second hydrophilic filter covering the inlet also effective, when wet, to permit the flow therethrough of a liquid and to block the flow therethrough of air.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: May 11, 1999
    Assignee: Teva Medical Ltd.
    Inventors: Menahem Kraus, Eli Shemesh, Haim Raz, Micha Ben-David
  • Patent number: 5895368
    Abstract: An extracorporeal blood set may be primed with physiological solution for use in a blood transporting process such as hemodialysis. The set comprises tubing having a patient connector on an end thereof, and a first branch tube in connection with a source of the solution. The branch tube connects with the set between the ends of the set. The branch tube also connects with further branch tubing, having a second connector which is capable of sealing connection with the patient connector. The method comprises the steps of connecting the patient connector and the second connector to form a closed loop of tubing. One then passes the solution from the source in flow through the first branch tube and further branch tubing to fill them and the set tubing with the solution. One then disconnects the patient connector for subsequent connection with the vascular system of a patient.
    Type: Grant
    Filed: September 23, 1996
    Date of Patent: April 20, 1999
    Assignee: Medisystems Technology Corporation
    Inventor: David S. Utterberg
  • Patent number: 5876371
    Abstract: An intravenous tube holder for use in a trauma unit or similar environment is disclosed. The present invention includes at least one element, each element preferably containing a plurality of tracks, each track being design to secure a separate intravenous tube, said element further having a writing surface on the same side of the element as the tracks, with a writing surface next to each track for identifying the content and/or other dosage information identifying the contents of the intravenous tube therein. Each element further has a projection on the side opposite the tracks and writing surfaces for attaching the element to a support means. Each element has a male extension and female indent for interconnecting to additional element so as to accommodate a greater number of intravenous tubes.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: March 2, 1999
    Inventors: Lisa D. Yokoyama, Donna J. Heller, Cecilia S. Bato
  • Patent number: 5865797
    Abstract: A fluid deliver system including a pair of bags having an opening formed in a bottom edge thereof. The bags include a first bag for containing a first liquid and a second bag for containing a second liquid. Further provided is a pair of elongated lumens each with a top open end and a bottom open end. Each top open end of the lumens is connected in communication with the openings of a corresponding bag. The bottom ends are in communication with each other to form an exit conduit and communicable with a dispensable apparatus for inserting into an arm of a patient. Finally, a drip control means is provided with a roller for manually controlling the amount of the first fluid and second fluid which exits the lumens and enters a patient.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: February 2, 1999
    Inventor: Mary L. Zeeman
  • Patent number: 5820582
    Abstract: A dual-filled twin bag, a packaging including the twin bag, and a method for forming the packaged twin bags are provided. Each of two bags, a solution bag (10) and a drain bag (12) for a system used for a peritoneal dialysis procedure, are filled, at least partially, with a solution (14). A tubing set (16) connects the two filled bags (10, 12) and may also be filled with solution (14) which is added to the bags (10, 12) and the tubing set (16) during the manufacturing process. The tubing set (16) is sandwiched between the solution bag (10) and the drain bag (12) and subsequently packaged in an overpouch (24). The method for forming the package including the bags filled with solution is simplified and the overall package size is reduced due to the sandwiched tubing set (16) between the solution bags (10, 12) and the provision of solution in both bags (10, 12).
    Type: Grant
    Filed: May 3, 1996
    Date of Patent: October 13, 1998
    Assignee: Baxter International Inc.
    Inventor: Michael R. Keilman
  • Patent number: 5814025
    Abstract: A system and method is provided which substantially eliminates the effect of air entrapped in tubing for delivering a liquid from a container. The inner diameter of the tubing is selected such that the gravitational force of the liquid from the container is greater than the surface tension of the liquid. A release agent may be used as a coating layer on the interior wall in addition to or alternatively from an expanded diameter.
    Type: Grant
    Filed: June 10, 1996
    Date of Patent: September 29, 1998
    Assignee: Baxter International Inc.
    Inventor: Dale Severs
  • Patent number: 5769815
    Abstract: A plastic blood chamber comprises a chamber-defining wall having a first blood inlet port adjacent to the end of the chamber and a blood outlet port adjacent typically the opposed end of the chamber. The inlet port is positioned in separate, lateral relation with the chamber, and has a conduit extending longitudinally of the chamber from the inlet port toward a central chamber portion in such separate, lateral relation to the chamber. The conduit curves into communication with the chamber in a transverse direction at an inlet position in the central chamber portion. A second portion of the chamber which is laterally opposed to the inlet position of the conduit defines a sloping shoulder to turn lateral blood flow from the conduit gently upwardly to define a gentle, circulatory flow of blood in an upper portion of the chamber. The chamber upper portion has a wall that carries projections to create blood flow eddys that slow the upward motion of bubbles present.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: June 23, 1998
    Assignee: Medisystems Technology Corporation
    Inventor: David S. Utterberg
  • Patent number: 5725511
    Abstract: Method and apparatus for preventing mismatching of blood types between a blood bag and a patient. A first connector has a configuration coding corresponding to the blood type of the blood in the bag, and has means for piercing and providing access to the bag. Blood tubing fluidly connects the blood bag to the patient and has a second connector with configuration coding corresponding to the blood type of the patient. The first and second connection must have matching configurations in order to sealably connect and deliver blood to the patient, thereby preventing mismatches. Optionally, another pair of configuration coded connectors may also be provided to sealably connect the intravenous needle in the arm of the patient. These two pairs of configuration coded connectors may be used separately or together to guard against blood type mismatches.
    Type: Grant
    Filed: September 7, 1995
    Date of Patent: March 10, 1998
    Inventor: Sharon A. Urrutia
  • Patent number: 5643205
    Abstract: A blood chamber for hemodialysis sets which comprises a sealed, flattened plastic parison, typically from blow molding, which defines a double reservoir chamber, each having at least a first conduit communicating with a first end of the reservoir chamber through a first port. The conduit extends laterally along substantially the length of the reservoir chamber in spaced relation thereto, for connection with hemodialysis set tubing adjacent the reservoir chamber and opposed to the first end. The blood chamber typically also defines a second port communicating with the reservoir chamber, typically at the same end thereof as the first port.
    Type: Grant
    Filed: January 4, 1995
    Date of Patent: July 1, 1997
    Assignee: Medisystems Technology Corporation
    Inventor: David S. Utterberg
  • Patent number: 5605540
    Abstract: A blood chamber for hemodialysis sets which comprises a sealed, flattened plastic parison, typically from blow molding, which defines a reservoir chamber and at least a first conduit communicating with a first end of the reservoir chamber through a first port. The conduit extends laterally along substantially the length of the reservoir chamber in spaced relation thereto, for connection with hemodialysis set tubing adjacent the reservoir chamber and opposed to the first end. The blood chamber typically also defines a second port communicating with the reservoir chamber, typically at the same end thereof as the first port.
    Type: Grant
    Filed: August 15, 1994
    Date of Patent: February 25, 1997
    Inventor: David S. Utterberg
  • Patent number: 5599303
    Abstract: The subject invention is a novel apparatus for the administration of intravenous fluids. The invention is particularly well suited for accurately and efficiently administering intravenous fluids over a wide range of flow rates. Disclosed is an intravenous fluid administration apparatus having at lease one flow line capable of administering fluid at high flow rates and comprising an airless, dripless, fluid monitoring chamber. A preferred embodiment comprises a main flow line which diverges into at least two flow limbs, where one flow limb is a low-flow limb and another flow limb is a high-flow limb, each having separate flow indicators, and with the flow limbs typically converging into a common tube for fluid delivery to the patient. The subject invention also discloses a novel flow meter, which is particularly well suited for measuring and indicating flow rates over a wide range, without the introduction of air bubbles into the fluid flow being measured.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: February 4, 1997
    Inventors: Richard Melker, Eric J. Hulsman, Brad D. Wellington
  • Patent number: 5580522
    Abstract: A novel integral cardiotomy/venous blood reservoir, blood oxygenator and heat exchanging device, method of making a blood oxygenating and heat exchanging device and an extracorporeal circulatory support circuit. The reservoir includes a novel blood defoaming and filtering chamber closely receiving filtering and defoaming media. The blood oxygenating and heat exchanging device includes thermal formed housing portions, and a heat exchanging barrier, blood oxygenating medium and/or filtering medium, which are sealed by potting compound at one time. The oxygenating medium comprises a hollow fiber type medium, with its ends left open to be sealingly mounted in a gas path by a novel mounting bracket.
    Type: Grant
    Filed: April 26, 1995
    Date of Patent: December 3, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Ronald J. Leonard, Erin J. Lindsay, David B. Maurer, Daniel W. Viitala
  • Patent number: 5578070
    Abstract: A blow molded, rigid plastic venous chamber for hemodialysis, for use in a venous hemodialysis set. The chamber defines a plurality of first access ports adjacent to a first end thereof. A second access port is provided at an opposed end. A tubular plastic filter is positioned in close-fitting relation within the second access port to project into the chamber. Unique advantages are provided by such a blow-molded, filter-carrying chamber, and by the chamber shape.
    Type: Grant
    Filed: January 31, 1996
    Date of Patent: November 26, 1996
    Assignee: Medisystems Technology Corporation
    Inventor: David S. Utterberg
  • Patent number: 5562638
    Abstract: A system and method is provided which substantially eliminates the effect of air entrapped in tubing for delivering a liquid from a container. The inner diameter of the tubing is selected such that the gravitational force of the liquid from the container is greater than the surface tension of the liquid. A release agent may be used as a coating layer on the interior wall in addition to or alternatively from an expanded diameter.
    Type: Grant
    Filed: February 15, 1995
    Date of Patent: October 8, 1996
    Assignee: Baxter International Inc.
    Inventor: Dale Severs
  • Patent number: 5540668
    Abstract: An anti-cross contamination valve for use in medical fluid delivery systems comprises a valve housing having a first port, a second port, and a third port that open into a hollow interior. A valve body is rotatably mounted within the hollow interior and has at least one fluid passageway therethrough. A knob is attached to the valve body and extends outside of the valve housing. The at least one passageway includes a first fluid passageway that opens the first port to the third port when the valve body is rotated to a first position with respect to the valve housing. The second port is closed when the valve is in its first position. The at least one passageway also includes a second fluid passageway that opens the second port to the third port when the valve body is rotated to a second position with respect to the valve housing. The first port is closed when the valve is in its second position.
    Type: Grant
    Filed: January 20, 1995
    Date of Patent: July 30, 1996
    Inventors: Roland B. Wilson, Jr., Glenda A. Wilson
  • Patent number: 5533978
    Abstract: A method and apparatus for injecting radiographic dye during angiography are provided. A deformable holding chamber is interposed between a contrast dye bottle and a syringe manifold. A one-way valve and an integral disconnect/flow-stop are connected between the bottle and the holding chamber. A vent is provided in the holding chamber, with a second one-way valve. Squeezing and releasing the deformable chamber fills the chamber from the bottle. The holding chamber contains a floating baffle which acts as a shut off valve by plugging the chamber outlet if the chamber becomes empty. The syringe is used to withdraw dye from the holding chamber. If dye remains in the bottle after performance of the procedure, the disconnect/flow-stop fitting can be disconnected, and the dye can be saved.
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: July 9, 1996
    Inventor: Paul S. Teirstein
  • Patent number: 5527299
    Abstract: The invention provides a one-piece rotator and manifold system and method of operating the same. The system comprises a manifold having an integral stem formed on its proximal end, a O-ring, and a cylindrical outer member. The integral stem has a spigot and a circular flange having a stepped surface which are received in a recess formed in the cylindrical outer member. The O-ring is disposed within the recess and encircles the spigot. During pressurization, the stepped surface is forced axially and radially into the outer cylindrical member and acts to prevent the outer cylindrical member from decoupling from the manifold.
    Type: Grant
    Filed: May 13, 1994
    Date of Patent: June 18, 1996
    Assignee: Critical Disposables, Inc.
    Inventor: J. Michael Cude
  • Patent number: 5520640
    Abstract: A blood chamber for hemodialysis sets which comprises a sealed, flattened plastic parison, typically from blow molding, which defines a reservoir chamber and at least a first conduit communicating with a first end of the reservoir chamber through a first port. The conduit extends laterally along substantially the length of the reservoir chamber in spaced relation thereto, for connection with hemodialysis set tubing adjacent the reservoir chamber and opposed to the first end. The blood chamber typically also defines a second port communicating with the reservoir chamber, typically at the same end thereof as the first port.
    Type: Grant
    Filed: June 6, 1994
    Date of Patent: May 28, 1996
    Inventor: David S. Utterberg
  • Patent number: 5423750
    Abstract: A system for the intravenous administration of single or multiple mendicants and/or nutrients to a patient through single or multiple intravenous tubings from single or multiple intravenous fluid sources where a portion of the intravenous tubing and a portion of the intravenous fluid source container are clearly marked with multiple indicia allowing for rapid visual identification and distinction between different tubes and containers, and where a section of the intravenous tubing at the patient's body and a section of the intravenous fluid container remains clear, colorless and transparent allowing for rapid and easy visual quality control and monitoring of the transfusion process.
    Type: Grant
    Filed: December 16, 1993
    Date of Patent: June 13, 1995
    Inventor: Kenneth M. Spiller
  • Patent number: 5374248
    Abstract: A manifold has a plurality of stopcocks wrapped in a flexible cellular material saturated with an antiseptic liquid and contained in a housing. Each control element of the stopcocks is removable and can be rotationally integrated with a head portion of a stopcock via a shaped male part. The shaped male part engages a female cavity of a matching shape through openings provided in the housing and in the cellular material opposite the stopcocks. Markings showing the position of the stopcocks are visible from the exterior of the housing when the element is withdrawn.
    Type: Grant
    Filed: December 28, 1992
    Date of Patent: December 20, 1994
    Assignee: Cair L.G.L.
    Inventor: Georges A. Lopez
  • Patent number: 5358477
    Abstract: A differential pressure administration set having a tubular chamber, which has an inlet at its upper end connected to a liquid supply container. Below the inlet is a first chamber which receives liquid from the container. Near or at the bottom of the first chamber is an outlet supply line to provide the higher pressure liquid to the operating site. The first chamber also has a second outlet which feeds liquid to a second chamber below the first chamber. There is a second outlet supply line at the lower end of the second chamber, which provides the lower pressure liquid to the operating site. The differential pressure is produced by and corresponds to the difference in height between the levels of the fluids in the first and second chambers.
    Type: Grant
    Filed: June 25, 1993
    Date of Patent: October 25, 1994
    Assignee: Surgical Design Corporation
    Inventor: Igor Strukel
  • Patent number: 5356379
    Abstract: The disposable ambulatory infusion pump assembly includes a line through which there is a restricted flow of fluid from a pump to a T- or Y-Site connector. The flow is sufficient to keep the vein of a patient opened, for example, using a flow rate of 0.5 cubic centimeters per hour. A second line is disposed in parallel to the first line to convey fluid from the pump to the T-connector at a higher flow rate and a clamp is provided for opening and closing the second line. Opening of the clamp permits the line to the T-connector to be primed when desired. Opening of the clamp also permits flushing of the T-connector and following lines after injection of a medication dose through the injection port of the T-connector. A restrictor may also be disposed in the line with a valve actuator to move the restrictor from a valve seat in the line to allow a greater flow of fluid about the restrictor than through the restrictor.
    Type: Grant
    Filed: August 3, 1993
    Date of Patent: October 18, 1994
    Inventor: Vincent L. Vaillancourt
  • Patent number: 5356375
    Abstract: A pressurized intravenous fluid delivery apparatus that operates as a closed system incorporating a waste component to avoid the accidental injection of air. The apparatus comprises a fluid reservoir under pressure, a manifold with a series of stopcock, an exhaust means in fluid connection with both the fluid reservoir and the manifold by means of a dual check valve, and a cannula and syringe means for injecting fluid into a patient. The closed system facilitates the flushing of blood and air out a catheter without the necessity of disconnecting any part of the apparatus and thereby risking exposure to air or risking physician contact with body fluids. The system is useful for delivering any quantity of one or more fluids under pressure, while avoiding the injection of air.
    Type: Grant
    Filed: April 6, 1992
    Date of Patent: October 18, 1994
    Assignee: Namic U.S.A. Corporation
    Inventor: Robert E. Higley
  • Patent number: 5336179
    Abstract: An organizer for organizing and maintaining a plurality of lines in a specifically arranged manner. The organizer is to include a clamping arrangement to facilitate securement to an exterior structure. The lines are fixedly mounted at appropriate spaced-apart locations on a block with this block being pivotally mounted on the clamping apparatus so as to position the lines at a desired orientation relative to an exterior structure upon which the clamping apparatus is mounted. Identifying indicia is to be placed on the organizer which is to correspond to identifying indicia on the lines so as to organize the lines and avoid confusion between the different lines mounted on the organizer.
    Type: Grant
    Filed: November 22, 1993
    Date of Patent: August 9, 1994
    Inventor: Richard M. Ryan
  • Patent number: 5334170
    Abstract: An apparatus wherein the primary dye container is connected to a secondary dye container with sufficient safeguards, including at least one-way check valve and at least one stopcock between the primary dye container and the secondary dye container, to assure a sterile barrier between the primary and secondary dye sources so that less than the total amount of sterile contrast media can be transferred from the primary dye container in an amount sufficient to perform a cardiac catheterization procedure.
    Type: Grant
    Filed: July 14, 1993
    Date of Patent: August 2, 1994
    Assignee: Abbott Laboratories
    Inventor: Mark T. Moroski
  • Patent number: 5330425
    Abstract: A blow molded, rigid plastic venous chamber for hemodialysis, for use in a venous hemodialysis set. The chamber defines a plurality of first access ports adjacent to a first end thereof. A second access port is provided at an opposed end. A tubular plastic filter is positioned in close-fitting relation within the second access port to project into the chamber. Unique advantages are provided by such a blow-molded, filter-carrying chamber.
    Type: Grant
    Filed: May 11, 1993
    Date of Patent: July 19, 1994
    Inventor: David S. Utterberg
  • Patent number: 5328461
    Abstract: A blow molded rigid plastic venous chamber for hemodialysis, for use in a venous hemodialysis set. The chamber defines a plurality of first access ports adjacent to a first end thereof. A second access port is provided at an opposed end. A tubular plastic filter is positioned in close-fitting relation within the second access port to project into the chamber. Unique advantages are provided by such a blow-molded, filter-carrying chamber.
    Type: Grant
    Filed: April 30, 1992
    Date of Patent: July 12, 1994
    Inventor: David S. Utterberg
  • Patent number: 5287852
    Abstract: A releasably anchorable bushing conduit apparatus for providing access through a wall having a generally accessible side and a generally inaccessible side and an opening extending through the wall from the generally accessible side to the generally inaccessible side comprises a bushing conduit having first and second opposite end portions with first and second coterminous openings therein. The bushing conduit is insertable into the opening such that the first end portion protrudes from the wall on the inaccessible side and the second end portion protrudes from the wall on the accessible side. A retaining device external to the first and second coterminous openings retains the bushing conduit in place, yet presents no obstruction to the first and second coterminous openings.
    Type: Grant
    Filed: January 13, 1993
    Date of Patent: February 22, 1994
    Assignee: Direct Trends International Ltd.
    Inventor: William W. Arkinstall
  • Patent number: 5279557
    Abstract: A multiple chamber IV manifold delivery device for controlling infusion of blood, medical drugs or other solutions to a medical patient. The manifold includes a transparent housing defining a set of drip chambers that communicate with a Y-site fluid reservoir that delivers fluid to a conduit line leading to a medical patient. The Y-site reservoir is provided with a flotation check valve. The manifold delivery device is operable to control the order of delivery of at least two fluid solutions from separate supply chambers to a medical patient. The flotation check valve is used to maintain one supply chamber in a sealed condition while another chamber supplies fluid to be administered to a patient. The IV manifold device is provided with exit and entry ports to enable the device to be coupled together with at least two other similarly constructed apparatus to thereby increase the time period for administering drugs of fluids to a medical patient.
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: January 18, 1994
    Inventor: Joe B. Lomick