Rotary Valve Patents (Class 604/32)
  • Patent number: 5382230
    Abstract: A vascular access sheath is provided for introducing catheters, stents, and other interventional devices into blood vessels. The invention comprises a stiff tubular catheter segment, which is designed to remain outside the body, having two hemostatic valves, most preferably of an iris valve design disposed at each end. A flexible sheath extends from one of the valves for insertion into the blood vessel. In operation, the valves are opened and closed one at a time, to allow relatively large devices to be introduced into the blood vessel without the valve pressing against the devices and with minimal loss of blood.
    Type: Grant
    Filed: December 16, 1991
    Date of Patent: January 17, 1995
    Assignee: Thomas Jefferson University
    Inventor: Joseph Bonn
  • Patent number: 5374244
    Abstract: A surgical device has a first cannula formed to define a first interior channel and a second cannula positioned substantially within the first interior channel of the first cannula. The second cannula is formed to define a second interior channel. Both the first cannula and the second cannula are attached to a conduit piece that defines a first passageway in fluid communication with the first interior channel of the first cannula and a second passageway in fluid communication with the second interior channel of the second cannula. A third passageway defined by the conduit piece is in fluid communication with the first interior channel of the first cannula. The second passageway is covered by a breachable seal that permits insertion of instruments therethrough while limiting undesired fluid flow.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: December 20, 1994
    Assignee: Mectra Labs, Inc.
    Inventors: Thomas P. Clement, David P. Weber
  • Patent number: 5372581
    Abstract: The present invention relates to an apparatus and a method for the withdrawal of placental blood from an umbilical cord vein. More specifically, the apparatus has a valve housing and a valve member. A needle is attached to a first port in the valve housing and a blood collection bag is attached to a second port in the valve housing. Additionally, a first syringe is attached to a third port, and a second syringe is attached to a fourth port. When the plunger on the first syringe is withdrawn it causes blood to flow from the umbilical vein through the needle and into the syringe. The valve member is then rotated, thereby sealing the needle from the blood collection bag and the syringes. Subsequently, the plunger in the second syringe, which contains an anticoagulant, is pressed. This causes the anticoagulant to mix with the blood. The blood is then stored in the attached storage bag.
    Type: Grant
    Filed: July 21, 1993
    Date of Patent: December 13, 1994
    Assignee: Minneapolis Children's Services Corporation
    Inventor: Sanford J. Anderson
  • Patent number: 5364364
    Abstract: A fluid flow control system having a valve disposed in-line with a fluid conduit extending between a fluid container and a fluid receiver. The conduit and valve are designed to be used with a fluid infusion device such as a peristaltic pump. The valve is non-clamping and includes a rotatable member with an external handle for controlling the valve between flow and flow stop positions. The handle can be manually operated as well as automatically operated. Mounted to the infusion device is an automatic operating mechanism for cooperating with the pumping mechanism of the infusion device to control the position of the valve. In a disclosed embodiment, the operating mechanism is mounted to an access door of the pump which cannot be closed until the peristaltic mechanism is engaged with the tubing. When the door is closed, the operating mechanism automatically moves the valve to the flow position. When the access door is opened, the mechanism automatically moves the valve to the flow stop position.
    Type: Grant
    Filed: August 4, 1993
    Date of Patent: November 15, 1994
    Assignee: IVAC Corporation
    Inventors: Spyros Kasvikis, Richard W. Herrmann, Simon E. Finburgh
  • Patent number: 5354267
    Abstract: Apparatus for irrigating and suctioning a patient during ventilating wherein in one operation the irrigation fluid is directed solely to the patient and in another operation the irrigation fluid is directed solely to flush the internal lumen of the catheter and in another operation suctioning of the patient is permitted.
    Type: Grant
    Filed: September 20, 1993
    Date of Patent: October 11, 1994
    Assignee: Vital Signs Inc.
    Inventors: Volker Niermann, Dennis H. Irlbeck, Jr.
  • Patent number: 5352214
    Abstract: A tubing clamp controlling flow within compressible tubing passing through the clamp which is adapted for inserting the tubing sidewise into the clamp upon opening of a hinged side wall. An adjustable flow controller overlies the tubing and is adapted to rotate, bear upon and squeeze the tubing for precise flow control. A lever arm to actuate the flow controller is in ratcheting engagement with an arcuate bar to hold the lever arm and cylindrical surface of the flow controller in the desired rotative position. The selected position of the lever arm can then be recorded. The tubing clamp can be constructed as a one-piece structure by use of a single mold and prepared as a kit to facilitate use for medical purposes. The assembly of the clamp is thus simplified and the method for controlling flow is accomplished by a series of simple steps.
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: October 4, 1994
    Inventor: Rolf A. Oscarsson
  • Patent number: 5340364
    Abstract: The device for selectively drawing samples of blood from two sections of a line and for injecting drugs into the blood comprises a three-way selection element which operates in a seat provided with three connections; the ways are suitable for selectively connecting two of the connections upon manual actuation on the part of an operator. A connection is suitable for receiving a line connected to an arterial blood drawing section; another connection is connected, by means of a duct, to the base of a trap which is open at the top and is suitable for receiving a line connected to a venous blood drawing section; and the third connection comprises a one-way valve allowing flow away from the connection and is connected by means of a duct to the base of a trap which is open at the top and is shaped so as to allow the insertion of a syringe for drawing samples of blood.
    Type: Grant
    Filed: October 14, 1993
    Date of Patent: August 23, 1994
    Assignee: Dideco S.r.l.
    Inventors: Nicola Ghelli, Ivo Panzani
  • Patent number: 5334182
    Abstract: A catheter monitor bridge is provided which allows for rapid identification of intravenous lines. The bridge has color-keyed fluid routing paths indicated on the bridge so that a caretaker can easily connect intravenous lines to the bridge and can readily manipulate the flow of fluids between the intravenous lines.
    Type: Grant
    Filed: September 2, 1992
    Date of Patent: August 2, 1994
    Assignee: Perry Creek Group Corporation
    Inventors: R. Kaye Simons, Frazer A. Wadenstorer
  • Patent number: 5306237
    Abstract: A surgical device has a first cannula formed to define a first interior channel and a second cannula positioned substantially within the first interior channel of the first cannula. The second cannula is formed to define a second interior channel. Both the first cannula and the second cannula are attached to a conduit piece that defines a first passageway in fluid communication with the first interior channel of the first cannula and a second passageway in fluid communication with the second interior channel of the second cannula. A third passageway defined by the conduit piece is in fluid communication with the first interior channel of the first cannula. The second passageway is covered by a breachable seal that permits insertion of instruments therethrough while limiting undesired fluid flow.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: April 26, 1994
    Assignee: Mectra Labs, Inc.
    Inventors: Thomas P. Clement, David P. Weber
  • Patent number: 5288290
    Abstract: The multi-ported valve assembly includes a valve body having a plurality of individual ports disposed in a common plane and a common port having its axis disposed perpendicularly to the common plane of the individual ports. The valve assembly includes a selector means having a body portion designed to engage the valve body and provide selective communication between one of the individual ports and the common port. The selector means includes a handle to facilitate rotation thereof and selection of a desired fluid flow passageway as well as indicator means to indicate direction of fluid flow. Also provided are sealing means to prevent external leakage during use and suitable connecting or coupling means to provide connection especially in devices and apparatus used in ophthalmic surgical procedures.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: February 22, 1994
    Assignee: Alcon Surgical, Inc.
    Inventor: George Brody
  • Patent number: 5241990
    Abstract: The invention is a valving device for use in laparoscopic surgery. The device generally has a valve housing having a wall defining a common channel. The channel includes at least first and second apertures extending through the channel wall to allow fluid communication to and from the channel. The invention also includes a laparoscopic probe having a channel created by a wall defining a first open end and a second open end, as well as a valve for trapping debris positioned within the channel first open end.
    Type: Grant
    Filed: July 10, 1992
    Date of Patent: September 7, 1993
    Assignee: Inlet Medical, Inc.
    Inventor: John D. Cook
  • Patent number: 5207641
    Abstract: A dual purpose catheter valve especially for oxygen insufflation and mucous suction from the lungs and trachea system of a patient, is provided. The body has two snap-fitted generally cylindrical parts, mounted for relative rotation, with an oxygen port, suction port and catheter port on the outer body part for connection to the respective valves, and ports formed in the wall of the inner body part. There are two pairs of inner body ports, one pair for alignment with the oxygen port and the catheter port of the outer body part, the other pair for alignment with the suction port and the catheter port of the outer body part. When one of the oxygen or suction ports is aligned for fluid communication to the interior of the body and to the catheter port, the other of the oxygen or suction ports is shut off by a wall portion of the inner body part.
    Type: Grant
    Filed: June 18, 1991
    Date of Patent: May 4, 1993
    Assignee: Bird Medical International Inc.
    Inventor: Robert A. Allton
  • Patent number: 5203769
    Abstract: A medical device valving mechanism comprising an elongated valve body molded to have a longitudinally extending body shaped to be gripped and securely held in either hand leaving the hand's thumb free for valve operational movement. The body has at least one fluid passageway extending longitudinally therethrough and a cylindrical opening extending transversely therethrough to intercept the at least one passageway. A cylindrical molded plastic, one-piece rotor for snug slidable and rotational insertion into the cylindrical opening to block the at least one passageway is provided. The rotor has at least one transaxial passageway which opens the at least one fluid passageway through the valve body when the rotor is in its valve opening position and which closes the at least one fluid passageway when the rotor is in its valve closing position. A thumb-actuated means is provided for rotating the rotor, the actuated means is disposed above the valve body and the rotor for convenient thumb movement.
    Type: Grant
    Filed: February 22, 1991
    Date of Patent: April 20, 1993
    Assignee: Mectra Labs, Inc.
    Inventors: Thomas P. Clement, David P. Weber
  • Patent number: 5197968
    Abstract: The present invention provides an apparatus for retrieval, dissection and removal of small organs and tissue from a patient's body. The instrument includes a collapsible basket defining a basket cavity. An anvil is attached to the distal end of the basket to form an impacting surface. A cutting cannula defining a cutting cavity is positioned to be reciprocatingly movable to pass through the basket cavity and impact the anvil. The cutting cannula is manually and reciprocatingly driven to pass into and through the basket cavity, cutting any tissue contained in the basket cavity. The cut tissue is then suctioned from the body for analysis.
    Type: Grant
    Filed: August 14, 1991
    Date of Patent: March 30, 1993
    Assignee: Mectra Labs, Inc.
    Inventor: Thomas P. Clement
  • Patent number: 5169385
    Abstract: A safety I.V. drug introducer set for use with a I.V. administration set is described for facilitating the injection of drugs into a primary fluid line without the necessity of an exposed hypodermic needle. In one embodiment, a Tee is inserted in the I.V. line whose cross-portion includes one or more check valves and whose stem portion comprises a socket for receiving the distal end of an outer tuburlar shaft having a pair of oppositely disposed ports passing through the wall thereof near the distal end. Fitted into the lumen of the outer tubular shaft is an inner tubular shaft having but a single aperture at its distal end alignable with one, the other, or neither of the pair of apertures in the outer shaft. A hollow key member is designed to fit within the non-circular bore of the inner tubular shaft for facilitating the rotation thereof. The key member also includes a single aperture at its distal end which is continuously aligned with the single aperture in the inner tubular member.
    Type: Grant
    Filed: July 26, 1991
    Date of Patent: December 8, 1992
    Inventor: Christopher J. Turnbull
  • Patent number: 5074334
    Abstract: A multi-way cock comprises a housing including a cylinder having a plurality of branch tubes extending from the periphery thereof, and a plug including a barrel adapted to be rotatably fitted in the cylinder and having a corresponding plurality of channels formed therein, the channels corresponding to the branch tubes in assembled condition. The barrel is formed of a polyester elastomer.
    Type: Grant
    Filed: July 27, 1990
    Date of Patent: December 24, 1991
    Assignee: Terumo Kabushiki Kaisha
    Inventor: Tsuneyoshi Onodera
  • Patent number: 5047012
    Abstract: Apparatus for introducing fluids into, and withdrawing fluids from, a hollow organ of the body, in particular a galibladder, for conducting litholysis, comprises a piston-type injection device having a multi-directional valve and which can be removably inserted into an operating mechanism. The injection device has a chamber located in front of its piston and serving as a settling chamber for a mixture of organ secretion and stone sludge removed with the solvent from the hollow organ. The valve is for the sequential connection of the pressure chamber to the hollow organ, to a tank for the solvent, and to a receiving vessel for fluid drawn off.
    Type: Grant
    Filed: January 12, 1990
    Date of Patent: September 10, 1991
    Assignee: Richard Wolf, GmbH
    Inventors: Ulrich Leuschner, Felix Ams, Klaus Muller
  • Patent number: 5045068
    Abstract: A flow rate regulator includes a first cylindrical member, a second cylindrical member and a disc-shaped member to regulate, the flow rate of liquid flowing through a transfusion unit. The liquid is introduced into the second cylindrical member via an inlet port. It flows through the disc-shaped member via a through hole and flows further along a peripherally extending groove in the first cylindrical member. Then, it is discharged from the first cylindrical member via an outlet port after the flow rate is regulated as required. The disc-shaped member is fitted in the second cylindrical member so as not to be rotated relative to the latter, and the sub-assembly is then fitted into the first cylindrical member. The peripherally extending groove is so designed that its cross-sectional area is gradually varied on the bottom portion of the first cylindrical member. The through hole in the disc-shaped member is communicated with the peripherally extending groove.
    Type: Grant
    Filed: April 10, 1989
    Date of Patent: September 3, 1991
    Assignee: Japan Medical Supply Company Limited
    Inventors: Tatsuya Kawai, Takashi Matsuda
  • Patent number: 5045053
    Abstract: In a device for the recovery of a tissue sample, tissue fluid or similar, which is detached and/or aspirated by a surgical instrument, tubing is provided between the surgical instrument and a collecting device. A vacuum-producing apparatus is assigned to the tubing. In this case the tubing (5) is to be connected to a transmission head (4), which rests with a ring seal (15) on the collecting apparatus (7).
    Type: Grant
    Filed: June 21, 1989
    Date of Patent: September 3, 1991
    Inventor: Lutz Kothe
  • Patent number: 5019054
    Abstract: A medical device valving mechanism comprising a molded plastic, one-piece, elongated valve body molded to have a longitudinally extending body shaped to be gripped and securely held in either hand leaving the hand's thumb free for valve operational movement. The body has at least one fluid passageway extending longitudinally therethrough and a cylindrical opening extending transversely therethrough to intercept the at least one passageway. A cylindrical molded plastic, one-piece rotor for snug slidable and rotational insertion into the cylindrical opening to block the at least one passageway is provided. The rotor has at least one transaxial passageway which opens the at least one fluid passageway through the valve body when the rotor is in its valve opening position and which closes the at least one fluid passageway when the rotor is in its valve closing position.
    Type: Grant
    Filed: November 6, 1989
    Date of Patent: May 28, 1991
    Assignee: Mectra Labs, Inc.
    Inventors: Thomas P. Clement, David P. Weber
  • Patent number: 5005604
    Abstract: A metering apparatus and system for controlling the administration of IV fluids having a valve housing with a valving chamber therein. A rotatable valve body member is positioned within the valve chamber and a valve passageway of variable cross-sectional area is provided at either the chamber or on the valve member. The effective area and length of the valve passageway interposed between the inlet and outlet to the valve is adjustable to regulate flow by moving the valve body relative to the valve member. Various accessories can be selectively attached to the basic valve configuration including a backplate which facilitates single-handed operation and an optional cover plate which may be secured to the backplate to provide security from patient tempering. In the preferred embodiment the valve housing and internal valve members are fabricated from dissimilar plastic materials of different hardness to improve the sealing therebetween.
    Type: Grant
    Filed: February 2, 1989
    Date of Patent: April 9, 1991
    Inventor: Jerry L. Aslanian
  • Patent number: 4966551
    Abstract: A long life vacuum for use primarily by a dental assistant for evacuating debris from the mouth of a patient during dental operations. The instrument takes the form of an open-ended tube having a quick disconnect coupler at one end to enable the tube to be coupled to a vacuum line. The other end of the tube is intended to be inserted into the mouth of the patient. The instrument is formed entirely of plastic so that it may be conveniently sterilized in a high temperature autoclave. Specifically, plastic seals are used instead of O-rings since O-rings are incapable of withstanding high temperatures and/or chemicals used during the sterilizing operations. In addition, there are no metal parts which would be subject to corrosive attach by the bonding materals currently used by many dentists. The instrument includes a valve which is operated by the dental assistant, and which is sealed to the tube by integral plastic seals.
    Type: Grant
    Filed: June 28, 1988
    Date of Patent: October 30, 1990
    Inventor: Frank A. Betush
  • Patent number: 4950230
    Abstract: A method and apparatus for bagless continuous ambulatory peritoneal dialysis comprising a valve having first, second and third fluid ports. The first and second fluid ports are secured to first and second fluid containers, respectively, through tubing and respective first and second connector assemblies. The third fluid port is connected through tubing to a catheter implanted in the abdominal wall of a user, also through a connector assembly. The valve includes an actuator moveable at least between four positions, a first position in which all of the fluid ports are blocked to prevent the flow of fluid through the valve, a second position in which the second and third fluid ports are interconnected, a third position in which the first and second fluid ports are interconnected, and a fourth position in which the first and third fluid ports are interconnected.
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: August 21, 1990
    Assignee: Delmed, Inc.
    Inventor: Lamar C. Kendell
  • Patent number: 4931044
    Abstract: A blood collecting valve (10) is provided with a structural input part (11.1) with a half moon shaped separating wall opening (18) as well as a structural output part (12.1) which is rotatable with respect to the structural input part with a seal face opening (23). Both are disposed outside of the rotational axis of the associated structural parts. Thereby, it is possible to bring the two opening into congruence with each other by rotating around the rotational axis or to again sealingly separate the same from each other.The mentioned common rotating of the structural input part and the structural output part and thereby the opening and closing of the blood collection valve may be performed by rotating a blood collecting cylinder (16) being inserted into the structural output part with an application conus (15). Hence, no separate manual handling is required for using the blood collection valve.
    Type: Grant
    Filed: October 6, 1988
    Date of Patent: June 5, 1990
    Assignee: Becton, Dickinson and Company
    Inventor: Werner Beiter
  • Patent number: 4878894
    Abstract: The present invention is a gas/saline valve for use in an gas/saline insufflation system which includes a gas insufflator and a saline source. The gas insufflator is fluidly coupled to a gas inlet of an arthroscopic attachment by a first tubing. The saline source is fluidly coupled to a saline inlet of an arthroscope by a second tubing. The gas/saline valve includes a housing with an open end and a gas/saline control knob. The housing has a first bore and a second bore. The housing also has a first slotted chamber and a second slotted chamber both of which are contiguous to the first and second bores, respectively, and within which the first and second tubings, respectively, are disposed. The gas/saline control knob has a solid cylinder which has a first semi-cylindrical notch and a second semi-cylindrical notch so that when the solid cylinder is disposed inside the housing, the first and second semi-cylindrical notches are aligned with the first and second slotted chambers, respectively.
    Type: Grant
    Filed: February 26, 1987
    Date of Patent: November 7, 1989
    Inventors: Leroy V. Sutter, Harold A. Cameron
  • Patent number: 4807660
    Abstract: A metering apparatus and system for controlling the administration of IV fluids having a valve housing with a valving chamber therein. A rotatable valve body member is positioned within the valve chamber and a valve passageway of variable cross-sectional area is provided at either the chamber or on the valve member. The effective area and length of the valve passageway interposed between the inlet and outlet to the valve is adjustable to regulate flow by moving the valve body relative to the valve member. Various accessories can be selectively attached to the basic valve configuration including a backplate which facilitates single-handed operation and an optional cover plate which may be secured to the backplate to provide security from patient tampering. In the preferred embodiment the valve housing and internal valve members are fabricated from dissimilar plastic materials of different hardness to improve the sealing therebetween.
    Type: Grant
    Filed: June 1, 1987
    Date of Patent: February 28, 1989
    Inventor: Jerry L. Aslanian
  • Patent number: 4802506
    Abstract: A metering apparatus and system for controlling the administraton IV fluids having a valve housing with a valving chamber therein. A rotatable valve body member is positioned wihtin the valve chamber and a valve passageway of variable cross-sectional area is provided at either the chamber or on the vlave member. The effective area and length of the valve passageway interposed between the inlet and outlet to the valve is adjustable to regulate flow by moving the valve body relative to the valve member. Various accessories can be selectively attached to the basic valve configuration including a backplate which facilitates single-handed operation and an optional cover plate which may be secured to the backplate to provide security from patient tampering. In the preferred embodiment the valve housing and internal valve members are fabricated from dissimilar plastic materials of different hardness to improve the sealing therebetween.
    Type: Grant
    Filed: April 20, 1987
    Date of Patent: February 7, 1989
    Inventor: Jerry L. Aslanian
  • Patent number: 4789000
    Abstract: A metering apparatus and system for controlling the administration of IV fluids having a valve housing with a valving chamber therein. A rotatable valve body member is positioned within the valve chamber and a valve passageway of variable cross-sectional area is provided at either the chamber or on the valve member. The effective area and length of the valve passageway interposed between the inlet and outlet to the valve is adjustable to regulate flow by moving the valve body relative to the valve member. Various accessories can be selectively attached to the basic valve configuration including a backplate which facilitates single-handed operation and an optional cover plate which may be secured to the backplate to provide security from patient tampering. In the preferred embodiment the valve housing and internal valve members are fabricated from dissimilar plastic materials of different hardness to improve the sealing therebetween.
    Type: Grant
    Filed: November 9, 1987
    Date of Patent: December 6, 1988
    Inventor: Jerry L. Aslanian
  • Patent number: 4784637
    Abstract: A flow control apparatus for providing selective fluid communication with physiological organs includes a nozzle structure for multiple conduits, a syringe having a fluid chamber for containing and discharging fluids in communication with the nozzle structure, two valve members having respective engaged surfaces relatively rotatable to provide valving action, and a clamp structure which forces the valve members together to establish fluid-tight seal between their engaged surfaces. The first valve member has a plurality of through apertures respectively communicating with separate fluid ports in the nozzle, and the second valve member has a through passageway communicating with the syringe chamber; the passageway is further selectively communicatable with at least one of the apertures in the first valve member to enable fluid flow between the respective nozzle port and the syringe chamber.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: November 15, 1988
    Assignee: Ryder International Corporation
    Inventors: Francis E. Ryder, Rowland W. Kanner
  • Patent number: 4769012
    Abstract: A flow regulating device for gravity infusion and transfusion of fluids comprises upper and lower housing parts which include inflow and outflow channels respectively. A continuously adjustable valve is connected between the inflow and outflow channels. The outflow channel has an outlet opening which defines a valve seat and a membrane extends across the outlet opening and is movable toward and away from the outlet opening depending on pressure appearing on opposite sides of the membrane. In this way extraneous pressures, such as patient venous pressure, can be compensated for by the membrane to maintain a substantially constant flow of fluid once the valve is set.
    Type: Grant
    Filed: May 27, 1987
    Date of Patent: September 6, 1988
    Assignee: Codan Medizinische Gerate GmbH & Co. KG
    Inventors: Minh B. Quang, Gert Urbschat
  • Patent number: 4703775
    Abstract: A liquid flow regulator has a housing including an axial bore, an inlet, an outlet and a plurality of axial grooves opening endwise of the inlet and laterally of the housing into the bore. The grooves, which have different axial lengths, taper axially so that the cross-sectional area of each groove gradually decreases from the inlet to nothing at a point where the groove merges with the bore. An elastomeric stock fits within the bore. A plunger for expanding the sock radially outward into sealing engagement with the housing adjacent the bore is axially movable within the bore. Flow through the grooves and the bore is regulated by the axial position of the plunger and the minimum cross-sectional area of the tapered, axial grooves at the axial location where the sock seals the bore. Axial adjustment of the plunger sequentially opens and closes passage from the grooves through the bore to the bore outlet.
    Type: Grant
    Filed: April 25, 1986
    Date of Patent: November 3, 1987
    Assignee: Abbott Laboratories
    Inventor: Giovanni Pastrone
  • Patent number: 4674496
    Abstract: Double-lumen tube adaptors for use with either single or dual anesthesia or ventillating machines enable the various features thereof to be utilized without airway disconnection or clamping, interruption of ventilation or the use of unreliable mechanical elements. The adaptor having a single machine-side entry port comprises a support frame and a pair of linear axially-extending cylindrical tubes in substantially parallel disposition extending rotatably through the frame, each of the tubes defining externally of the frame at one end a patient-side exit port adapted for communication with a patient via one lumen of a double-lumen tube and at the other end an entry port with a removable cap. Each of the tubes further defines within the frame interior intermediate the entry and exit ports an aperture extending appreciably in a direction transverse to the tube axes.
    Type: Grant
    Filed: September 30, 1986
    Date of Patent: June 23, 1987
    Assignee: Albert Einstein College of Medicine of Yeshiva University
    Inventors: Edward Svadjian, Paul L. Goldiner
  • Patent number: 4662868
    Abstract: A syringe assembly includes a syringe receiving a plunger at one end and at the other end there is an extended part which can be heat deformed to hold a ported cap member and a rotatable valve member to the syringe. The ported cap member includes ports adapted to be connected to tubes for receiving, or conveying fluid material. The ported cap member has a central opening through which the extended part extends. The rotatable valve member is located between the syringe and the ported cap member for sealingly engaging both the syringe and the ported cap member by O-ring seals therebetween. The ported cap member is non-rotatably connected to the syringe by a splined connection.
    Type: Grant
    Filed: July 26, 1985
    Date of Patent: May 5, 1987
    Assignee: University of Pittsburgh
    Inventor: Orlando D. Cambio, Jr.
  • Patent number: 4648868
    Abstract: An apparatus comprising a valve body having first, second and vent ports and a generally tubular valve element having a peripheral wall with first, second and vent openings in the peripheral wall leading to the interior of the tubular valve element. The valve element is mounted in the valve body for rotational movement between first and second rotational positions and for axial movement between first and second axial positions. A pressure sensor is exposed to the fluid pressure within the valve body. In the first rotational position of the valve element, drip flow is provided between the first and second ports, and in the second rotational position, the vent port is open to provide communication between the pressure sensor and the atmosphere. To provide flush flow between the first and second ports, the valve element is moved to the second axial position.
    Type: Grant
    Filed: September 30, 1985
    Date of Patent: March 10, 1987
    Assignee: American Hospital Supply Corporation
    Inventors: Martha K. Hardwick, Kelly A. Pike, George D. Evans, II, Ronald Edwards, Jacob J. Norman
  • Patent number: 4642097
    Abstract: The valve is positioned in the left ventricle drain line and includes a check valve which permits flow only away from the heart and downstream of the check valve includes a vent valve which prevents buildup of pressure. In addition, the valve includes a manually adjustable vacuum control orifice whereby the surgeon can control the left ventricle drain line vacuum intensity applied to the heart.
    Type: Grant
    Filed: March 25, 1985
    Date of Patent: February 10, 1987
    Inventor: George G. Siposs
  • Patent number: 4608996
    Abstract: An externally located blood monitoring system has a single access to a patient's blood vessel for monitoring blood associated parameters. A three-position valve permits three modes of operation including flushing, blood pressure monitoring while maintaining patency of the access, and blood sampling while also permitting monitoring of other blood related parameters, such as blood temperature.
    Type: Grant
    Filed: August 10, 1984
    Date of Patent: September 2, 1986
    Assignee: Cordis Corporation
    Inventor: David C. Brown
  • Patent number: 4605396
    Abstract: A gravity flow cassette for use with an I.V. infusion pump has a fluid inlet, a fluid outlet and a pump chamber with associated pump piston. A valve body having an annular groove and a partial groove parallel thereto is slidably disposed in the cassette for reciprocal movement between a first position and a second position. Engagement of the cassette with the pump firmly holds the valve body in the first position wherein the annular groove is sealed and the valve body can be rotated to alternately provide fluid communication through the partial groove between the inlet and the pump chamber or between the pump chamber and the outlet. Upon disengagement of the cassette from the pump, the valve body can be moved into the second position to seal the partial groove and provide for simultaneous fluid communication through the annular groove between the input, the output and the pump chamber.
    Type: Grant
    Filed: February 25, 1985
    Date of Patent: August 12, 1986
    Assignee: Warner-Lambert Company
    Inventors: Gus G. Tseo, Dennis L. Fitzwater
  • Patent number: 4595005
    Abstract: A dual-purpose catheter for performing suction or oxygen feed on a patient including two cylindrical bodies rotatably coupled together and held together by a spring which is biased to hold the bodies in a first position with respect to each other but permits rotation to a second position. One body includes first and second tubes which can be coupled to a source of suction or a source of oxygen, and the other body includes means for receiving said tubes in a tight fit and tube means for coupling either suction or oxygen to the patient, depending on the rotation state of the two bodies with respect to each other.
    Type: Grant
    Filed: February 8, 1984
    Date of Patent: June 17, 1986
    Inventor: Walter J. Jinotti
  • Patent number: 4586919
    Abstract: A shunt for attachment between an artery and a vein being harvested for use in an arterial bypass including an elongated tube, a first end on the elongated tube for insertion into a femoral artery, a second end on the elongated tube for insertion into the distal portion of a saphenous vein to thereby maintain communication between the artery and the vein even though normal blood flow to the vein is disrupted, a stopcock between the first and second ends, a second elongated tube coupled to the stopcock for selectively receiving blood from the elongated tube to irrigate the external portion of the vein being harvested, and a detachable connection at the second end of the elongated tube for selectively permitting detachment of the second end of the elongated tube from the remainder of the elongated tube during vein harvesting.
    Type: Grant
    Filed: April 6, 1984
    Date of Patent: May 6, 1986
    Inventor: Syde A. Taheri
  • Patent number: 4566480
    Abstract: An improved medical stopcock valve assembly (10,40,60,80) of the type the valve body (11,111,62) of which has extending fluid-directing tubes (14,16,18,114,116,118,66,68,70,214,216,218) at least some of which have a female Luer lock fitting (30,130,72) adapted to receive a Luer lock cap (32) when not in use, is provided with a blind portion (34,42,44,46,48,52,88,90,92,188,190,192) for receiving and storing a cap (32,132,232) when it is out of use such as during a fluid sampling procedure In one form, the blind portion is formed as a female Luer lock fitting (34',130,54). Alternatively, recessed blind portions (188,190,192) may be provided for receiving and engaging the outer rim (233) of the cap (232) to sealably enclose the entire cap interior to maintain it sterile. In one embodiment, a blind fitting (34) is formed on the valve body (11).
    Type: Grant
    Filed: June 14, 1984
    Date of Patent: January 28, 1986
    Inventor: Allan M. Parham
  • Patent number: 4551130
    Abstract: A post-operative patient drainage and irrigation apparatus, employing a simplified two-position valve to control the passage of fluids into and out of the body of the patient. A two-channel catheter directs body fluids into and out of the control valve. A first flexible tube directs irrigating solutions from a source into the control valve. A second flexible tube, attached at one end to the control valve, serves as a waste conduit from the said valve to a waste receptacle. Check valves carried in rubber squeeze bulbs in the first and second flexible tubes further control the direction of fluid flow and serve to clear obstructions in the apparatus. A simple control changes the two-position control valve position from one mode to another.
    Type: Grant
    Filed: May 8, 1984
    Date of Patent: November 5, 1985
    Inventors: William B. Herbert, Rohit A. Patel
  • Patent number: 4525156
    Abstract: A sanitary, disposable, gastric lavage closed system is disclosed that quickly and effectively flushes material from a patient's stomach. The system includes an elevated, plastic reservoir bag connected through a feed line having a specified bore range, to a T-connection. A gastric tube is fitted to the T-connection and is adapted for insertion into the patient's stomach. A fixed volume of liquid from the reservoir bag is admitted to the patient by pump or by hand control of the feed line over a short, measured period of time.Material in the patient's stomach is then quickly removed into a disposable container that forms a closed system with the rest of the components.An injection syringe may be employed to inject treatment materials into the stomach, remove test samples, and maintain the system free of clogged material.An attachment for colonic irrigation and enemas may be employed to replace and/or by-pass the gastric tube.
    Type: Grant
    Filed: February 16, 1983
    Date of Patent: June 25, 1985
    Inventors: John E. Benusa, Richard L. Kingston
  • Patent number: 4447226
    Abstract: A medical aspirator including an automatic valve means to reverse the flow of air upon stoppage of the suction system whereby the stoppage may be dislodged and the normal suction function of the aspirator is reinstituted. The aspirator includes a spring loaded suction responsive trigger means to rotate the valve means.
    Type: Grant
    Filed: March 8, 1982
    Date of Patent: May 8, 1984
    Inventor: Armando G. Mayoral
  • Patent number: 4397335
    Abstract: A rotary valve, especially designed for use in medical systems, has an arrangement of passageways in its rotary valve plug and ports in its housing that permit manual manipulation of the valve to switch the medical system from monitoring pulmonary artery pressure to measuring central venous pressure. The system can also be used for cardiac output measurement or for the withdrawal of a mixed venous blood sample. Patient trauma and contamination are avoided.
    Type: Grant
    Filed: May 26, 1981
    Date of Patent: August 9, 1983
    Inventors: Dennis D. Doblar, John C. Hinkle
  • Patent number: 4380236
    Abstract: Apparatus for the administration of solution to a patient at a precisely controlled rate. A length of flexible, collapsible tubing filled with the solution and connectable at one end to a conduit communicating with the vascular system of a patient is advanced through roller means, so that the solution expelled from the tubing is proportional to the rate of advancement of the tubing through the roller means.
    Type: Grant
    Filed: September 14, 1981
    Date of Patent: April 19, 1983
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventor: William W. Norton
  • Patent number: 4378799
    Abstract: A vaginal hygiene device comprising an annular supporting cushion, fluid injection and fluid collection means, including an adjustable base with the supporting cushion having a hydrophobic outer surface.
    Type: Grant
    Filed: August 12, 1981
    Date of Patent: April 5, 1983
    Inventor: Elizabeth C. Bernacky
  • Patent number: D271421
    Type: Grant
    Filed: June 12, 1981
    Date of Patent: November 15, 1983
    Inventor: James W. Fetterman