Conduit Deforming Clamp Patents (Class 604/250)
  • Patent number: 8267370
    Abstract: A clamp assembly (10,110) for flexible tubing (100), having a housing (12,112) and a clamp (14,114) slidable within the housing between first and second positions, to occlude the tubing when the clamp is in the second position. Both the clamp and the housing include tubing-engaging ribs (30,60;130,160) to compress the tubing when the clamp is moved from its first or open position to its second or occluding position, with the tubing-engaging ribs being axially offset to force the tubing (100) into a tortuous path causing occlusion thereof. A pair of latch arms (62) extend forwardly from the clamp to follow respective channels (32) formed into housing side walls (20,22), with latch arm free ends (64) extending beyond the end of the housing to become latchingly engaged therewith when the clamp is moved into its occluding position, and also to be exposed to be manually engaged for delatching when desired.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: September 18, 2012
    Assignee: Medical Components, Inc.
    Inventors: Mark S. Fisher, W. Shaun Wall
  • Publication number: 20120232496
    Abstract: A catheter that comprises a hub, an elongated conduit, and at least one lumen therein. The lumen includes a proximal lumen section, a distal lumen section, and an intermediate lumen section extending between the proximal and distal lumen sections. The cross-sectional dimension of the intermediate lumen section is less than the cross-sectional dimension of the distal lumen section. In one embodiment, the cross-sectional dimension of the intermediate lumen section is less than the cross-sectional dimension of the proximal lumen section. In certain embodiments, the lumen tapers from the distal and/or proximal lumen sections to the intermediate lumen section.
    Type: Application
    Filed: May 17, 2012
    Publication date: September 13, 2012
    Applicant: Navilyst Medical, Inc.
    Inventors: Raymond Lareau, Benjamin Bell, Mark Girard
  • Publication number: 20120232497
    Abstract: A non-reopening clamp including two arms hingedly connected, each arm having a clamping portion such that relative rotation of the arms brings the clamping portions into clamping engagement, wherein the arms include a locking mechanism for locking the clamping portions together. Access to the locking mechanism may be prevented by a shield, to prevent a user from re-opening the clamp.
    Type: Application
    Filed: September 21, 2010
    Publication date: September 13, 2012
    Inventor: Sukhvinder Singh
  • Publication number: 20120232495
    Abstract: A system for clamping a tube includes a Bowden cable with an inner member and an outer casing. A first jaw element has a first tube abutment surface, a passage, and a first sliding latch portion. The inner member of the Bowden cable passes through the passage. A second jaw element has a second tube abutment surface, a cable guide, and a second sliding latch portion. The inner member has a first end which is held in the mated sliding latch portions so that sliding of the inner member results in selectably positioning the first and second tube abutment surfaces together or spaced apart. An actuator is coupled to a second end of the outer casing and a second end of the inner member for applying a force to slide the inner member within the outer casing, the passage, and the cable guide. The Bowden cable substantially isolates the tube being clamped from the weight of the actuator.
    Type: Application
    Filed: March 7, 2011
    Publication date: September 13, 2012
    Applicant: TERUMO CARDIOVASCULAR SYSTEMS CORPORATION
    Inventor: Zachary A. Coon
  • Patent number: 8262639
    Abstract: The present disclosure relates to clamps for controlling the flow of liquid through a fluid circuit. More particularly, the present disclosure relates to flow control clamps that can be substantially irreversibly secured in a closed position, thereby discouraging reopening of the flow path of the tube.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: September 11, 2012
    Assignee: Fenwal, Inc.
    Inventor: Jean-Marie Mathias
  • Patent number: 8251945
    Abstract: A device for suctioning material out of an instrument channel during an endoscopic procedure. The device includes a biopsy valve having a first end, a second end, and an outer circumferential surface. The biopsy valve defines an internal passage leading from the first end to the second end, wherein the first end is adapted for connection to an endoscope instrument channel inlet port. Tubing connects the biopsy valve second end to a suction source connector disposed remote from the biopsy valve. A flow controller is fixed to the tubing and disposed between the biopsy valve second end and the suction source connector. The device may include an irrigation port and an instrument entry port.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: August 28, 2012
    Assignee: U.S. Endoscopy Group, Inc.
    Inventors: Dean J. Secrest, Christopher J. Kaye, Paul Davis, John P. Winstanley
  • Publication number: 20120215181
    Abstract: Disclosed is an infusion flow regulator, in which a reference point is set within a manipulating range of a manipulation unit for regulating a flow rate in the infusion flow regulator, so that a manipulating point of the manipulation unit can be tuned with reference to the ratio of a flow rate measured at the reference point in relation to a prescribed injection flow rate, whereby the flow rate can be quickly and accurately tuned to the prescribed flow rate. The disclosure also includes an infusion flow regulating set including the infusion flow regulator, and an infusion flow regulating method using the same.
    Type: Application
    Filed: August 31, 2011
    Publication date: August 23, 2012
    Inventor: Doo-Yong Lee
  • Publication number: 20120203187
    Abstract: A medical catheter assembly includes a catheter hub, an elongate catheter member extending from the catheter hub and having at least one longitudinal lumen for passage of fluids, an extension tube extending from the catheter hub and defining an internal lumen in fluid communication with the at least one longitudinal lumen of the catheter member and a clamp positionable about the extension tube. The catheter hub defines a reduced profile to facilitate passage of the catheter hub through a surgical tunnel. The clamp includes first and second clamp sections and defines a longitudinal clamp axis. The clamp has a longitudinal opening for passage of the extension tube and a movable member adapted to move from a first position to a second position to substantially close the internal lumen. The first and second clamp sections are separable to facilitate transverse positioning of the clamp sections about the extension tube.
    Type: Application
    Filed: April 17, 2012
    Publication date: August 9, 2012
    Applicant: Tyco Healthcare Group LP
    Inventors: Richard Braga, Robert Frechette, Brett Haarala
  • Publication number: 20120191059
    Abstract: The present disclosure provides cassettes and methods of using same for the delivery of fluids to a patient using fluid delivery systems. In a general embodiment, the cassettes of the present disclosure include a flexible tube, a housing having a recessed area and first and second ends for holding the flexible tube, and at least two additional components including, for example, different sensors, false reading components for sensors, anti-flow valve means, insertion guides, directional indicators, latch mechanisms, kink-prevention notches, etc. Such additional components provide the cassettes of the present disclosure with several advantages including, for example, quality control, efficiency of use, cost effectiveness, and safety of use.
    Type: Application
    Filed: July 8, 2010
    Publication date: July 26, 2012
    Applicant: NESTEC S.A.
    Inventors: David Charles Cummings, Alan P. Halbert, Seralaathan Hariharesan, James Allen Higgins, Brian Highley, Michael Rueben Jedwab, Russell Paul Meyer, Andrew Peter Nelson, David Woodruff West
  • Publication number: 20120179138
    Abstract: A device and method for enterally hydrating a patient, such as a paralyzed or limited upper body mobility patient with a functional gastrointestinal system who is nonetheless incapable or not fully capable of drinking unassisted. Here fluids are provided by a suspended semi-flexible container with graduation markings to allow for convenient estimation of fluid use, an upper open and closeable cap to allow the container to be refilled, and a lower fluid conducting tube that terminates in a mouthpiece, which contains a fluid valve formed from at least one slit in an elastic material. Patient mouth force on the valve causes the slit to enlarge, thus enabling fluid to flow into the patient.
    Type: Application
    Filed: January 10, 2012
    Publication date: July 12, 2012
    Inventors: Jeffrey Lee Wheeler, Kari Nicole Whitaker Wheeler
  • Publication number: 20120157918
    Abstract: A patient controlled liquid drug administration device is provided that enables either or both of a continuous flow of a liquid drug, as well as successive, large-volume boluses thereof, to be self-administered to and by a patient while avoiding bolus refill during bolus delivery or after bolus delivery but before an intake stroke of the pump occurs. The device includes an elongated housing having an axial cavity extending through it with a reciprocating pump mounted at a bottom end thereof. The pump defines a closed internal reservoir and includes a first wall, or seat, that is fixed in the cavity, and a second, flexible wall that is axially movable in the cavity in relation to the fixed wall between reservoir-full and reservoir-empty positions. The pump includes an inlet port that is connectable to a source of a pressurized liquid drug by an inlet conduit, and an outlet port subcutaneously connectable to the patient by an outlet conduit, both conduits extending out the bottom end of the housing.
    Type: Application
    Filed: December 15, 2010
    Publication date: June 21, 2012
    Inventors: Moises Valle, Giuseppe Sacca
  • Patent number: 8202266
    Abstract: Equipment for use in changing a catheter, preferably of the type used for drainage of the urinary tract. The urinary catheter is used as an aid in emptying the urinary bladder in conditions where this cannot be done in the normal manner. The equipment of the present invention includes a sleeve mounting unit which is mounted to an indwelling catheter, and which has a branch member formed in one piece therewith and extending at an acute angle therefrom, for reception of an elongated sleeve having a longitudinal slit. The sleeve is positioned on the branch member and then progressively advanced onto the catheter, causing the slit to become enlarged as the sleeve surrounds the upstream portion of the catheter in a yielding manner. The catheter may then be quickly removed through the sleeve and a new catheter inserted in its place.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: June 19, 2012
    Assignee: Urological AS
    Inventor: Knut Eilert Karlsen
  • Publication number: 20120143150
    Abstract: Mixing systems and methods include a mixing device comprising a primary tube having a proximal end, a distal end, an outer surface and an inner lumen and at least one secondary tube having a proximal end, a distal end, an outer surface and an inner lumen. The at least one secondary tube is substantially parallel to the primary tube. The distal end of the at least one secondary tube is fluidly connected to the primary tube at a junction located on the primary tube close to the distal end of the primary tube.
    Type: Application
    Filed: December 3, 2010
    Publication date: June 7, 2012
    Inventors: Christopher Page, Stephen Probst, Thomas Corrado
  • Publication number: 20120136305
    Abstract: A pinch clamp assembly for engaging a tube (10) with an enteral feeding or infusion pump adapted to feed nutritionals or to infuse medical solutions to a patient, is provided comprising a base (1) comprising holding means (3) for holding a tube (10) in operative engagement with the base (1), a first clamping surface (4) and supporting means (5) for supporting a connector (6), a clamping element (7) having a second clamping surface (8) engageable with the tube (10) and moveable between an open position allowing flow of fluid through the tube (10) and a closed position wherein the tube (10) is occluded by the clamping element (7), a connector (6) for connecting the tube with a port on a patient, the connector (6) being removable from the pinch clamp assembly, and a spring (12), wherein the connector (6) is adapted to engage with the clamping element (7) so as to hold the clamping element (7) in the open position, wherein the clamping element (7) is forced from the open to the closed position by the force of the
    Type: Application
    Filed: September 22, 2009
    Publication date: May 31, 2012
    Applicant: NESTEC S.A.
    Inventors: Giancarlo Gagliardoni, Giuseppe Antonio Nichetti
  • Patent number: 8187253
    Abstract: A low profile adaptor for use with a medical catheter. In one embodiment, the adaptor comprises a lower connector portion, an upper connector portion and a valve. The lower connector portion comprises a tubular portion and an annular portion, the annular portion radially surrounding the tubular portion along an intermediate length thereof. A helical thread is formed on the inside surface of the tubular portion. A circular lip projects upwardly a short distance from the top surface of the annular portion. The upper connector portion comprises a tubular section adapted for insertion into the tubular portion of the lower connector portion. An external helical thread is formed on the tubular section of the upper connector portion for mating engagement with the thread on the interior of the tubular portion of the lower connector portion. The upper connector portion also includes an annular base.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: May 29, 2012
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Laddvanh Bouphavichith, Michael S. H. Chu, Laurence D. Brenner, William L. Churchill
  • Publication number: 20120101437
    Abstract: A pinch clamp assembly for engaging a tube with an enteral feeding or infusion pump adapted to feed nutritionals or to infuse medical solutions to a patient, is provided comprising a base (1) comprising holding means (3) for holding a pumping section (10) of the tube in operative engagement with the base (1) and supporting means (5) for supporting a connector (6), a clamping element (7) having clamping surfaces engageable with the pumping section (10) and moveable between an open position allowing flow of fluid through the pumping section (10) and a closed position, a cover element (8) for slidable engagement with the clamping element (7) and the connector (6), the cover element (8) being removable from the pinch clamp assembly, wherein the cover element (8) is mountable to or dis-mountable from the clamping element (7) and the connector (6) only when the clamping element (7) is in the closed position, wherein in the mounted position of the cover element (8) the clamping element (7) can be brought into the op
    Type: Application
    Filed: June 25, 2009
    Publication date: April 26, 2012
    Applicant: NESTEC S.A.
    Inventors: Giancarlo Gagliardoni, Giuseppe Antonio Nichetti
  • Publication number: 20120101438
    Abstract: A pinch clamp assembly for engaging a tube with an enteral feeding or infusion pump adapted to feed nutritionals or to infuse medical solutions to a patient, is provided comprising a base (1) comprising holding means (3) for holding a pumping section (10) of the tube in operative engagement with the base (1) and supporting means (5) for supporting a connector (6), a clamping element (7) having clamping surfaces engageable with the pumping section (10) and moveable between an open position allowing flow of fluid through the pumping section (10) and a closed position wherein the pumping section (10) is occluded by the clamping element (7), and locking means adapted to engage with each other in the closed position and adapted to interact with releasing means external to the pinch clamp assembly so as to bring the clamping element (7) from the closed to the open position, a connector (6) for connecting the tube with a port on a patient, the connector (6) being removable from the pinch clamp assembly, the clamping
    Type: Application
    Filed: August 14, 2009
    Publication date: April 26, 2012
    Applicant: Nestec S.A.
    Inventors: Giancarlo Gagliardoni, Giuseppe Antonio Nichetti
  • Patent number: 8152780
    Abstract: In general, this disclosure relates to techniques for sealing, or pinching, high-pressure fluid tubing (e.g., braided tubing) that may be used to deliver medical fluid from a powered medical fluid injection device, such as an injector that delivers contrast media and/or saline during angiographic or computed tomography (CT) procedures. In some cases, one or more low-friction, solenoid-based pinch valve mechanisms may be used. One example powered medical fluid injection device comprises an injector head and at least one pinch valve mechanism that is coupled to the injector head. The at least one pinch valve mechanism comprises a plunger, a reciprocating arm driven by the plunger, and a tube pinching area. The at least one pinch valve mechanism, when deactivated by the injector head, is configured to cause the reciprocating arm to pinch fluid tubing that runs through the tube pinching area.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: April 10, 2012
    Assignee: ACIST Medical Systems, Inc.
    Inventors: Alan Evans, Marty Hieb, Khoi Le, Chris Lins, Steven Paul Plager, Bill West, Darryl T. Wrolson
  • Publication number: 20120083737
    Abstract: A system for selectively preventing free flow in a tube includes an in-line occluder disposed in the tube and an actuator pad for creating a flow path between the tube and the occluder. The actuation pad presses towards the occluder from a single side and stretches the tube to create a large flow path. The occluder stem is strengthened to resist deformation and damage from the forces applied by the actuator pad.
    Type: Application
    Filed: September 29, 2011
    Publication date: April 5, 2012
    Inventor: Kent Beck
  • Patent number: 8123732
    Abstract: A bowel management system includes a waste collection catheter having at least two distinct sections. The first section is patient proximal when disposed in the patient's rectum and has durometer hardness in the range of about 50 A to about 90 A. The second catheter section is connected to the first section and has durometer hardness in the range of about 5 A to about 49 A. A selectively collapsible, substantially spherical retention balloon is attached coaxially and exterior of the first catheter section such that the proximal-most end of the retention balloon is coincident to the proximal-most end of the first section of the waste collection catheter, the substantially spherical retention balloon having an inflated size so as to be sufficiently large enough to retain the patient proximal end of the catheter in the patient's rectum without being so large as to trigger a defecatory response in the patient.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: February 28, 2012
    Assignee: Hollister Incorporated
    Inventors: Nick Martino, James G. Schneider, Peter M. von Dyck, Jae Hwang Kim, John S. Minasi
  • Patent number: 8114056
    Abstract: A catheter for connecting an administering device to an administering needle, the catheter including a catheter wall, a flow region limited by the catheter wall, and at least one catheter portion at which at least one partial piece of the catheter wall abuts at least one other partial piece of the catheter wall to releasably block or obstruct the flow of a medium through the catheter, wherein the flow is unblocked or opened when the medium exhibits a pressure above a predetermined blocking pressure.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: February 14, 2012
    Assignee: Roche Diagnostics International AG
    Inventors: Hanspeter Niklaus, Roger Haenggi
  • Publication number: 20120035553
    Abstract: A clamp for closing flexible tubing including a first arm having a first anchoring element, a second arm, a first connecting portion elastically connecting the first arm to the second arm, a second connecting portion connected to the second arm opposite the first connecting portion, extending towards the free end of the first arm, a second anchoring element positioned on the second connecting portion, a first projection integral to the first arm and facing the second arm, a second projection integral to the second arm and facing the first projection. The first and the second arms are movable between an open position, wherein the projections are in a spaced position, and a closed position, wherein the first anchoring element and the second anchoring element are coupled and the projections are in a close position squeezing a tubing.
    Type: Application
    Filed: February 10, 2010
    Publication date: February 9, 2012
    Applicant: Gambro Lundia AB
    Inventors: Eugenio Lombardo, Aldo Calimeri
  • Patent number: 8105316
    Abstract: The present invention is directed to, in one aspect, a medical apparatus having a nasogastric tube with hypopharyngeal suctioning capability. In one embodiment, the medical apparatus has a flexible nasogastric tube for insertion through a patient's nose. The nasogastric tube has a first end defining a first opening, a distal, second end that defines a second opening, and a length sufficient to allow the second opening to be positioned in a patient's stomach. The medical apparatus also has a flexible oropharyngeal tube for insertion through a patient's mouth. The oropharyngeal tube has a first end and a distal, second end that defines a suction intake. The oropharyngeal tube has a length that is less than the length of the nasogastric tube and which allows the suction intake to be positioned in a patient's hypopharynx region. In another embodiment of the invention, the medical apparatus has a laryngeal mask with hypopharyngeal suctioning capability.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: January 31, 2012
    Inventor: Nalini Vadivelu
  • Publication number: 20120016317
    Abstract: A clamp guard for securing to flexible tubing such as catheters and their extension tubes and about a clamp therealong for housing the clamp at least when the clamp is in a tubing-clamping state, to prevent inadvertent contact of the clamp by a foreign body and undesirable unclamping of the clamp. The clamp guard is removable from around the clamp when desired.
    Type: Application
    Filed: September 23, 2011
    Publication date: January 19, 2012
    Applicant: MEDICAL COMPONENTS, INC.
    Inventors: Kenneth J. Chesnin, John Stephens
  • Publication number: 20120004624
    Abstract: A device for holding an IV tube in a pumping apparatus and for selectively occluding the tube when the door of the pumping apparatus is opened, to prevent free flow of fluid in the tube. A flange provided on a sliding clamp is designed to prevent inadvertent finger slippage causing pushing of a tab positioned in the sliding direction from the flange, resulting in undesirable fluid leakage. The flange is made slip-resistant using a textured surface, having a concave shape, or having an angled top portion to prevent finger slippage or having a concave setback to guide a finger when pushing the sliding clamp.
    Type: Application
    Filed: June 30, 2010
    Publication date: January 5, 2012
    Applicant: CareFusion 303, Inc.
    Inventors: Houston Brown, Rob Pecsar
  • Patent number: 8062008
    Abstract: A removable cassette for a peristaltic pump includes a cassette body and an occluder disposed at least partially in the cassette body and configured to be movable between an occluding position and a non-occluding position. The occluder includes an occluder body and an anti-ejection member integrally formed on the occluder body. The anti-ejection member is configured to substantially prevent the removal of the cassette from the peristaltic pump when the occluder is in the non-occluding position.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: November 22, 2011
    Assignee: Curlin Medical Inc.
    Inventors: Robert R. Voltenburg, Jr., Loren M. Thompson
  • Publication number: 20110276000
    Abstract: An automatic safety occluder provides an occluder for an infusion set that is biased in a closed position until an electrical signal is received that causes the occluder to open. Should the occluder fail to be installed correctly, or if power is removed, the occluder will return to its biased closed position, preventing free flow. The occluder may also be placed in an integrated unit such that the automatic safety occluder may attach to the tubing as a unit.
    Type: Application
    Filed: July 22, 2011
    Publication date: November 10, 2011
    Inventor: Mark Stringham
  • Patent number: 8052657
    Abstract: The invention lies in the domain of medical technology and relates to a method and devices, which permit a patient to control and dose the administration of a liquid medicament from a container via a tube (4) and a catheter into the vascular system, by regulating the rate of flow of the medicament by means of a variable clamping of the tube ranging from a total block to a complete release and/or by regulating specific flow periods. To achieve this, a dosing element, preferably in the form of a mechanical rocker control switch (3), comprising a rocker (10) is put onto the tube (4), whereby the rocker (10) pivots about the rocker axis (13) pressing against the tube with its longitudinal end, by means of an adjusting coil spring (9), the flow cross-section of the tube (4) is regulated by an adjusting screw (8) on the adjusting coil spring (9) and the medicament flow through the tube (4) can also be regulated by a manually operated trigger switch (11).
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: November 8, 2011
    Inventor: Niels Rahe-Meyer
  • Patent number: 8047482
    Abstract: A device for securing an object on a holder includes a platen attached to the object, a tightening element that pivots relative to the platen so that it can be folded back against the platen or raised perpendicularly to the platen. A lock is provided for locking the tightening element in the position perpendicular to the platen. The lock includes a tab that moves between a stowed position in which, when the tightening element is in the raised position, the tab bears against the tightening element and blocks it in this position, and a drawn out position in which the tab allows the tightening element to pivot towards the platen so that, in the folded position of the tightening element, the tab bears against a face of the tightening means different from the inner face.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: November 1, 2011
    Assignee: Fresenius Vial SAS
    Inventors: Gilbert Poncon, Philippe Traversaz
  • Patent number: 8025645
    Abstract: A clamp guard (10,110,210, . . . ) for securing to flexible tubing (50) such as catheters and their extension tubes and about a clamp (60) therealong for housing the clamp at least when the clamp is in a tubing-clamping state, to prevent inadvertent contact of the clamp by a foreign body and undesirable unclamping of the clamp. The clamp guard is removable from around the clamp when desired.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: September 27, 2011
    Assignee: Medical Components, Inc.
    Inventors: Kenneth J. Chesnin, John Stephens
  • Publication number: 20110218475
    Abstract: A blood processing system includes a flow reversing device with at least an air sensor in the venous line located near the patient. During treatment, blood flow is reversed to cause air to infiltrate the blood lines if any disconnections or breaks in the blood line are present. One means for placing the sensor close to the patient is to provide the flow switching device aid sensors in a small lightweight module that can be located close to the treatment machine. Another is to provide a module with just the sensors near the access.
    Type: Application
    Filed: March 30, 2011
    Publication date: September 8, 2011
    Applicant: NxStage Medical, Inc.
    Inventors: James M. Brugger, Christopher McDowell
  • Patent number: 7998121
    Abstract: An automatic safety occluder provides an occluder for an infusion set that is biased in a closed position until an electrical signal is received that causes the occluder to open. Should the occluder fail to be installed correctly, or if power is removed, the occluder will return to its biased closed position, preventing free flow. The occluder may also be placed in an integrated unit such that the automatic safety occluder may attach to the tubing as a unit.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: August 16, 2011
    Assignee: ZEVEX, Inc.
    Inventor: Mark Stringham
  • Patent number: 7976515
    Abstract: The present invention describes IV regulators that allow interruption of normal controlled-flow for a safe and convenient bolus flush, either for a specific period of time or for a specific volume of saline flush. Two time-controlled IV regulators are shown, one employing a pneumatic cylinder counter-opposed by elastic band(s) for administering a bolus flush, and one employing a compressible lever and torsion spring counter-opposed by a rotary damper. In both cases the mechanisms disengage the roller-clamp from the IV tube for a predetermined amount of time to fully open fluid flow there through for a bolus flush before return to the regulated-flow position. The volume-controlled flow regulator employs two internal bladders and allows one bladder to fill while the other bladder drains (and vice versa) by flipping a slider paddle-type toggle, thus enabling the administration of a set volume of flush fluid.
    Type: Grant
    Filed: October 15, 2007
    Date of Patent: July 12, 2011
    Inventors: Todd Murphy, Christopher Klassen, Eric Schneider, Brian Lee Lipford
  • Patent number: 7976533
    Abstract: An apparatus for removing body fluids from a body cavity by suction, such as a thorax, gastric or any other human body cavity or a wound, comprises means (9) to increase the pressure difference between a pressure in a drainage lumen (3) and a pressure in the atmosphere when an auxiliary lumen (5) is open. The apparatus enables removal of clots or other plugs of the catheter and drainage tube in an efficient and not patient disturbing way.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: July 12, 2011
    Assignee: Medela Holding AG
    Inventor: Michael Larsson
  • Publication number: 20110137265
    Abstract: Positive displacement fluid lock ports for use in combination with an indwelling catheter and a syringe during a flushing/locking procedure are provided. The fluid lock port includes a housing having a distal and a proximal end; a resilient conduit supported within the housing, wherein the conduit defines a lumen therethrough; and at least one biasing member supported in the housing and being operatively associatable with the resilient conduit. The at least one biasing member has a first condition restrained from deforming the resilient conduit and a second condition operatively engaged with the resilient conduit to at least partially occlude the lumen of the resilient conduit.
    Type: Application
    Filed: February 16, 2011
    Publication date: June 9, 2011
    Applicant: TYCO HEALTHCARE GROUP LP
    Inventor: Todd M. Chelak
  • Publication number: 20110137264
    Abstract: Positive displacement fluid lock ports for use in combination with an indwelling catheter and a syringe during a flushing/locking procedure are provided. The fluid lock port includes a housing having a distal and a proximal end; a resilient conduit supported within the housing, wherein the conduit defines a lumen therethrough; and at least one biasing member supported in the housing and being operatively associatable with the resilient conduit. The at least one biasing member has a first condition restrained from deforming the resilient conduit and a second condition operatively engaged with the resilient conduit to at least partially occlude the lumen of the resilient conduit.
    Type: Application
    Filed: February 16, 2011
    Publication date: June 9, 2011
    Applicant: TYCO HEALTHCARE GROUP LP
    Inventor: Todd M. Chelak
  • Patent number: 7954210
    Abstract: A hose clamp, preferably for the closing of catheter extensions, has an integral plastic body extending in an elongate manner with two arms which are resiliently connected to one another at the ends and which each form a projection such that they are disposed opposite one another in the closed state of the hose clamp. The arms can be hooked with one another in the closed state with openings being provided at the front and rear ends thereof for the reception of a hose. The hose clamp generally has the shape of a cylinder with cut-off sides which taper conically at both sides toward the ends of the clamp, with the ends being adapted to the circular shape of a hose is received therein.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: June 7, 2011
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventor: Andreas Ruffing
  • Patent number: 7951122
    Abstract: A device, system and method for occluding fluid flow through an infusion set detached from a patient's body. The device includes a means for detecting loss of contact to a patient's body and activating an occlusion mechanism accordingly.
    Type: Grant
    Filed: May 12, 2008
    Date of Patent: May 31, 2011
    Assignee: Medx-Set Ltd.
    Inventor: Avraham Shekalim
  • Publication number: 20110112489
    Abstract: A tube clamp includes (i) a tube holding portion; (ii) a first arm extending from a first end of the tube holding portion; (iii) a second arm extending from a second end of the tube holding portion, the second armed curved so that a first catch located at a distal end of the second arm can be snap-fitted to the first arm to occlude a first tube extending through the tube holding portion; and (iv) wherein the first arm includes a locking feature configured such that when a second tube clamp is mated with the tube clamp, the locking feature interacts with a second catch of the second tube clamp so that the second tube clamp is prevented from occluding a second tube.
    Type: Application
    Filed: November 10, 2009
    Publication date: May 12, 2011
    Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventor: Patrick Balteau
  • Publication number: 20110098661
    Abstract: A device for controlling the rate of flow of a liquid in a flexible tube comprising two opposed surfaces between which the tube is received in use wherein the surfaces are elongated in the direction of flow of the liquid in the tube and are either parallel to one another or arranged so that in use the included angle does not exceed 40°, and means for varying the distance between the surfaces so as to compress the tube between them by the desired amount.
    Type: Application
    Filed: November 5, 2007
    Publication date: April 28, 2011
    Inventors: Michael Jedweb, Giancarlo Gagliardoni, Giuseppe Antonio Nichetti
  • Patent number: 7931612
    Abstract: An intravenous fluid administration apparatus may include a proximal conduit having a spiked first end for attaching to a reservoir of fluid and a second end, a distal conduit, an intermediate conduit network providing fluid communication from the proximal conduit's second end to the distal conduit and including first and second constituent conduits that provide parallel paths from the proximal conduit to the distal conduit, a flow regulator so engaged with the first constituent conduit as to enable control of fluid flow therethrough, and a pressure-responsive valve so interposed in the second constituent conduit as to permit flow from the proximal conduit to the distal conduit through the second constituent conduit when a fluid pressure difference across the valve exceeds a threshold and to prevent such flow when the difference does not exceed the threshold.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: April 26, 2011
    Assignee: Rosenblatt Associates, LLC
    Inventor: Peter L. Rosenblatt
  • Patent number: 7922700
    Abstract: In general, this disclosure relates to techniques for sealing, or pinching, high-pressure fluid tubing (e.g., braided tubing) that may be used to deliver medical fluid from a powered medical fluid injection device, such as an injector that delivers contrast media and/or saline during angiographic or computed tomography (CT) procedures. In some cases, one or more low-friction, solenoid-based pinch valve mechanisms may be used. One example powered medical fluid injection device comprises an injector head and at least one pinch valve mechanism that is coupled to the injector head. The at least one pinch valve mechanism comprises a plunger, a reciprocating arm driven by the plunger, and a tube pinching area. The at least one pinch valve mechanism, when deactivated by the injector head, is configured to cause the reciprocating arm to pinch fluid tubing that runs through the tube pinching area.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: April 12, 2011
    Assignee: Acist Medical Systems, Inc.
    Inventors: Alan Evans, Marty Hieb, Khoi Le, Chris Lins, Steven Paul Plager, Bill West, Darryl T. Wrolson
  • Publication number: 20110082438
    Abstract: An anti-free-flow mechanism includes an occluder mechanism which is disposed along a segment of tubing. The occluder mechanism is normally in a biased closed position, but may be moved into an open position by moving an engagement member into engagement with the tubing segment to deform the tubing segment and open a flow channel. Unless force is applied to keep the engagement member in contact with the tubing segment, the tubing will return to the first, closed position.
    Type: Application
    Filed: October 1, 2010
    Publication date: April 7, 2011
    Inventors: Kent Beck, Philip Eggers
  • Patent number: 7914518
    Abstract: A clamp (110) for releasably clamping a catheter, including a body having a first portion (112), a second portion (122), and a hinge (132) connecting the first portion and the second portion, such that the first portion is disposed to face the second portion. The first portion (112) includes a tab (134) extending distal from the hinge (132) and wherein the second portion (122) includes a locking means (146) for releasably locking the tab (134) to the second portion (122). A method of releasably clamping a plurality of catheter lumens (100,102) during catheter insertion and a method of locating a catheter insertion distance based on the location of the clamp are also disclosed.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: March 29, 2011
    Assignee: Medical Components, Inc.
    Inventors: J. Daniel Raulerson, John Stephens
  • Patent number: 7896863
    Abstract: Positive displacement fluid lock ports for use in combination with an indwelling catheter and a syringe during a flushing/locking procedure are provided. The fluid lock port includes a housing having a distal and a proximal end; a resilient conduit supported within the housing, wherein the conduit defines a lumen therethrough; and at least one biasing member supported in the housing and being operatively associatable with the resilient conduit. The at least one biasing member has a first condition restrained from deforming the resilient conduit and a second condition operatively engaged with the resilient conduit to at least partially occlude the lumen of the resilient conduit.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: March 1, 2011
    Assignee: Tyco Healthcare Group LP
    Inventor: Todd M. Chelak
  • Publication number: 20110028899
    Abstract: An anti-free-flow mechanism includes an occluder mechanism which is disposed along a segment of tubing and a mounting structure. The occluder mechanism is normally in a biased closed position, but may be moved into an open position by placement in the mounting structure. However, unless force is applied to keep the occluder mechanism in the mounting structure, the occluder will move relative to the mounting structure and return to the first, closed position.
    Type: Application
    Filed: September 28, 2010
    Publication date: February 3, 2011
    Inventors: Kent Beck, Jason Bultman, Jeff Juretich, Philip Eggers, Ryan Federspiel, Blake Allen
  • Publication number: 20110004190
    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. The occluder may also be configured to allow flow when the infusion set adjacent the occluder is moved sideways relative to the occluder or maintained at an angle relative to the occluder. When a pair of occluders are used in sequence, an in-line pump may be formed.
    Type: Application
    Filed: September 14, 2010
    Publication date: January 6, 2011
    Inventors: David Cise, David J. McNally, Kent F. Beck, Blake Allen, John Dickey
  • Publication number: 20100268161
    Abstract: The invention relates to a clamp (10) for a flexible tube, in particular an infusion tube, composed of a substantially U-shaped plastic band, the free end (111) of the first branch (11?) of the U being bent over, so as to form the head (11) of the clamp, to the free end (121) of the second branch, called the back (12), in such a way that, in the closed position, the free end (121) of the back (12) is situated resting under the free end (111) of the head (11), whereas, in the opened position, the free end (121) of the back (12) is situated at a distance above the free end (111) of the head (11), the clamp having a pair of openings (114, 134) to allow a flexible tube to extend through the clamp and be supported by the latter, and two opposite projections (113, 123) for obturating the flexible tube by compressing it when the clamp is in the closed position.
    Type: Application
    Filed: August 27, 2008
    Publication date: October 21, 2010
    Applicant: FRESENIUS VIAL SAS
    Inventor: Philippe Traversaz
  • Patent number: 7815613
    Abstract: A clamp (110) for releasably clamping a catheter body having a first portion (112), a second portion (122), and a hinge (132) connecting the first portion and the second portion, such that the first portion is disposed to face the second portion. The first portion (112) includes a tab (134) extending distal from the hinge (132) and wherein the second portion (122) includes a locking means (146) for releasably locking the tab (134) to the second portion (122). A method of releasably clamping a plurality of catheter lumens (100,102) during catheter insertion and a method of locating a catheter insertion distance based on the location of the clamp are also disclosed.
    Type: Grant
    Filed: February 9, 2004
    Date of Patent: October 19, 2010
    Assignee: Medical Components, Inc.
    Inventors: J. Daniel Raulerson, John Stephens
  • Patent number: 7810784
    Abstract: A roller clamp is configured to maintain at a prescribed rate the flow rate of a fluid that flows through a tube. The roller clamp includes a tube winding shaft part around which a fluid flow tube is passed and which prevents the setting of the flow rate being disturbed if the tube is subject to a tensional force.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: October 12, 2010
    Assignee: Tyco Healthcare Group LP
    Inventors: Kazuhiro Abe, Ichiro Kitani