Having Inflation Or Deflation Control Means Patents (Class 604/99.01)
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Patent number: 7914505Abstract: The irrigation system comprises a reservoir (1) for irrigating liquid, a probe (3) for arrangement in a user, conduit means (6,7,10,11) for conducting the irrigating fluid from the reservoir to the probe, and a fixation member (5) for fixation of the probe in the user. Pumping means (9) are provided for pumping gas into the reservoir (1) to transfer the irrigating liquid from the reservoir to the probe (3). The fixation member includes an inflatable cuff (5), and the system includes a control unit (8) which may be set in at least a cuff inflating position and a liquid transferring position.Type: GrantFiled: April 11, 2003Date of Patent: March 29, 2011Assignee: Coloplast A/SInventors: Peter Moeller-Jensen, Kristoffer Zeuthen, Jimmy Groetner, Christian Grunewaldt
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Patent number: 7909844Abstract: A catheter comprises a first catheter shaft comprising a wall. The wall comprises at least one section of electroactive polymer having an actuated state and a non-actuated state and defines a first lumen. In the actuated state the first lumen haves a first diameter and in the non-actuated state the first lumen haves a second diameter, the first diameter being different than the second diameter.Type: GrantFiled: July 31, 2006Date of Patent: March 22, 2011Assignee: Boston Scientific Scimed, Inc.Inventors: Yousef Alkhatib, Matt Heidner, Tracee Eidenschink, Angela Kornkven Volk, John Blix, Dominick Godin, Derek Sutermeister
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Patent number: 7887480Abstract: A balloon control apparatus includes a balloon, a flow rate adjustment section, a setting section and a control section. The balloon is attached to an insertion section of an endoscope and/or an insertion aid instrument for guiding insertion of the insertion section of the endoscope. The flow rate adjustment section adjusts an air supply flow rate to the balloon and/or an exhaust flow rate from the balloon. The setting section sets the air supply flow rate and/or the exhaust flow rate. The control section controls the flow rate adjustment section so that the air supply flow rate to the balloon and/or the exhaust flow rate from the balloon become the air supply flow rate and/or the exhaust flow rate set by the setting section.Type: GrantFiled: February 8, 2007Date of Patent: February 15, 2011Assignee: Fujinon CorporationInventor: Tadashi Sekiguchi
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Patent number: 7883491Abstract: A multilayer film including a layer of sealing film, having main top and bottom surfaces, and a layer of thermoplastic polymer film, laminated to the layer of sealing film, on at least one of the main top and bottom surfaces. The sealing film has a composition and thickness imparting gas barrier character to the multilayer film, of which the layer(s) of thermoplastic polymer film by themselves lack such gas barrier character. Such multilayer film is usefully employed to form biologically compatible therapeutic articles such as medical balloons that are constructed to be inflated in vivo.Type: GrantFiled: April 1, 2004Date of Patent: February 8, 2011Inventor: Tilak M. Shah
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Publication number: 20110021987Abstract: The invention relates to a novel pulsating medical device comprising: a catheter (1) designed to be inserted into a blood vessel, having a diameter and comprising a rod at its insertion end, termed part A; and an inflatable component (6) housed around part of the catheter (1), termed part B, said inflatable component (6) being designed to be connected to an inflation means (9) connected to the other end of said catheter (1) and termed part C, so that said inflatable component can be inflated/deflated in a pulsed manner, the diameter of part B of said catheter (1) being less than the diameters of parts A and C of said catheter (1), and the diameters of parts A and C of said catheter (1) being approximately equal.Type: ApplicationFiled: April 2, 2009Publication date: January 27, 2011Inventor: Sayed Nour
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Patent number: 7842027Abstract: A combination aspiration/irrigation and illumination device using optical fibers circumferentially disposed around the aspiration conduit for transmitting illuminating light to a cavity to be aspirated. The ends of the optical fibers being formed at an angle relative to the aspiration conduit so as to direct the illuminating light inward to provide intensified illumination ahead of the aspiration conduit.Type: GrantFiled: June 4, 2007Date of Patent: November 30, 2010Inventor: Jonas V. Lieponis
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Publication number: 20100292536Abstract: A fluid control device which controls a flow rate of a fluid supplied or sucked to or from an inflation and deflation member, includes: a first pipe system connected to the inflation and deflation member, wherein the fluid flow of a predetermined flow rate is supplied to the first pipe system; a second pipe system connected to the inflation and deflation member, wherein a fluid flow of a flow rate lower than the predetermined flow rate is supplied to the second pipe system; a device which switches the first pipe system to the second pipe system when a predetermined amount of fluid is supplied or sucked to or from the inflation and deflation member through the first pipe system; and a device which controls the pressure in the inflation and deflation device by using the second pipe system based on a pressure in the second pipe system.Type: ApplicationFiled: May 13, 2010Publication date: November 18, 2010Inventors: Shinichi Yamakawa, Tsuyoshi Ashida, Takayuki Nakamura
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Patent number: 7824369Abstract: A system and method for inflating and deflating a catheter balloon using osmosis. An elongate catheter shaft has a proximally disposed osmotic membrane in fluid communication with a distally mounted balloon through a fluid-filled catheter lumen. The balloon is inflated by exposing the exterior of the membrane to a solution that is hypotonic relative to the solution within the catheter lumen. The balloon is deflated by exposing the exterior of the membrane to a solution that is hypertonic in relation to the solution within the catheter lumen.Type: GrantFiled: April 21, 2005Date of Patent: November 2, 2010Assignee: Medtronic Vascular, Inc.Inventor: Vincent J. Cangialosi
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Patent number: 7803124Abstract: An apparatus for modulating the pressure of a fluid such as a gas within the expandable portion of a guide wire catheter. A preferred embodiment apparatus features a mechanism for controllably gripping and releasing the open, proximal end of a tubular guide wire, a mechanism for introducing a fluid to a desired pressure and volume into the expandable portion of the tubular guide wire through the open end, and, while maintaining the pressure and volume of fluid in the tubular guide wire, a mechanism for introducing a sealing member into the chamfered, open end of the tubular guide wire to consistently seal the fluid in the tubular guide wire. In a particularly preferred embodiment, the apparatus also features a deflation tool for piercing the seal and letting the fluid out. Using this apparatus, the tubular guide wire can be re-sealed and re-opened as necessary.Type: GrantFiled: August 28, 2004Date of Patent: September 28, 2010Assignee: Kensey Nash CorporationInventors: Mark Eberhart, William T. Fisher, John E. Nash, Dennis M Sauro
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Patent number: 7777399Abstract: An expandable medical balloon having at least one static state, at least one expanded state, and at least one deflated state, the expandable medical balloon including at least one active region, the at least one active region including electroactive polymer.Type: GrantFiled: July 31, 2006Date of Patent: August 17, 2010Assignee: Boston Scientific Scimed, Inc.Inventors: Tracee Eidenschink, Derek Wise, Derek Sutermeister, Yousef Alkhatib, Daniel Gregorich, Adam Jennings, Matt Heidner, Dominick Godin, Richard C. Gunderson, John Blix, Karl A. Jagger, Angela Kornkven Volk
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Patent number: 7771370Abstract: An apparatus for modulating the pressure of a fluid such as a gas within the expandable portion of a guide wire catheter. A preferred embodiment apparatus features a means for controllably gripping and releasing the open, proximal end of a tubular guide wire, means for introducing a fluid to a desired pressure and volume into the expandable portion of the tubular guide wire through the open end, and, while maintaining the pressure and volume of fluid in the tubular guide wire, a means for introducing a sealing member into the open end of said tubular guide wire to seal the fluid in the tubular guide wire. In a particularly preferred embodiment, the apparatus also features a deflation tool for piercing the seal and letting the fluid out. Using this apparatus, the tubular guide wire can be re-sealed and re-opened as necessary.Type: GrantFiled: May 22, 2006Date of Patent: August 10, 2010Assignee: Kensey Nash CorporationInventors: Mark Eberhart, William T. Fisher, John E. Nash, Dennis M. Sauro
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Publication number: 20100198149Abstract: A surgical device comprises a guide tube having a proximal end, a distal end, and an inside diameter. A needle has a proximal end and a distal end. The needle comprises a longitudinal portion having a diameter suitable to be slidably received within the inside diameter of the guide tube. The needle comprises a helical element disposed at the distal end of the needle.Type: ApplicationFiled: January 30, 2009Publication date: August 5, 2010Applicant: Ethicon Endo-Surgery, Inc.Inventor: William D. Fox
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Patent number: 7766870Abstract: A safety adaptor having attachment components and reservoir components for use with balloon anchored catheters such that if the catheter is forcibly removed the reservoir components will act as a safety valve and allow the anchoring balloon to deflate. The safety adaptor acts to minimize damage caused to a patient due to the removal of an inflated anchor balloon of a catheter. The safety adaptor attaches to any existing catheter having a fluid balloon and does not require re-engineering or re-tooling of the catheter or adaptor.Type: GrantFiled: April 20, 2006Date of Patent: August 3, 2010Assignee: The United States of America as represented by the Secretary of the ArmyInventor: Clifton R. Dabbs
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Publication number: 20100185173Abstract: The present invention provides a kit for delivering catheter brachytherapy to a subject comprising a medical balloon catheter (1) having a proximal (2) and distal (3) end, comprising a elongated catheter tube (5) with an inflation lumen (21) extending therewithin and at least one inflatable balloon (4, 4?) towards the distal end (3) in fluid communication with the catheter tube (5) inflation lumen (21), the catheter tube (5) configured to unfold from a kinked condition permitting the inflation lumen (21) to slidably receive a removable inner tube (6), the inflation lumen (21) configured to carry inflation fluid to the least one inflatable balloon (4, 4?) in the presence of the removable inner tube (6); and a removable inner tube (6) having an elongated body, an open (9) proximal end (7), a closed (10) distal end (8), and a source wire lumen (22) extending therewithin, wherein the removable inner tube (6) is configured for insertion into and removal from at least part of the length of the inflation lumen (21),Type: ApplicationFiled: August 26, 2008Publication date: July 22, 2010Inventors: Youri Popowski, Erwin Berger
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Publication number: 20100168668Abstract: Catheter systems and methods are disclosed including a seal for helping direct an anticoagulant or other fluid for proper irrigation in a basket catheter. An exemplary basket catheter includes an outer tubing housing an inner fluid delivery tubing having at least one fluid delivery port. A plurality of splines each connected at a proximal end of the splines to the outer tubing and at a distal end of the splines to the inner fluid delivery tubing. The inner fluid delivery tubing is operable to be moved in a first direction relative to the outer tubing to expand the splines to a deployed position. The inner fluid delivery tubing is also operable to be moved in a second direction relative to the outer tubing to collapse the splines to an undeployed position. A porous membrane is provided over at least a portion of the inner fluid delivery tubing having the at least one fluid delivery port.Type: ApplicationFiled: December 29, 2008Publication date: July 1, 2010Inventors: Dale Just, James V. Kauphusman
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Publication number: 20100121270Abstract: A resector balloon system is disclosed generally comprising a catheter with at least one balloon having an outer wall with a resecting, non-slip surface for resecting unwanted biological material, such as tissues or tumors, and a pump that supplies fluid thereto in pulsed fashion to repeatedly deflate and inflate said balloon. In certain embodiments, the pump includes a processor that controls the pulsed supply of fluid based on an established frequency or change in volume. In some embodiments, the system includes a keyed connector with which the pump identifies the balloon type, and in some cases, the system calculates intra-lumen diameters and densities. In some embodiments, the balloon portion of the catheter includes multiple balloon segments, which in some cases, are inflatable separately from one another.Type: ApplicationFiled: November 12, 2008Publication date: May 13, 2010Inventors: Erhan H. Gunday, Lawrence J. Gerrans
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Patent number: 7686788Abstract: A catheter having a drug delivery unit at the distal end thereof. The drug delivery unit includes an actuator capable of assuming an activated and an inactivated configuration. The drug delivery unit also includes a receptacle capable of accepting a therapeutic agent. The actuator and receptacle are in communication with each other such that the actuator transmits force to the receptacle and the receptacle accepts force from the actuator in an activated configuration of the actuator. Also provided is a method of delivering a therapeutic agent to a target site using the catheter of the present invention.Type: GrantFiled: March 3, 2005Date of Patent: March 30, 2010Assignee: Boston Scientific Scimed, Inc.Inventors: Toby Freyman, Maria Palasis, Wendy Naimark, Timothy J. Mickley
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Publication number: 20100010470Abstract: A dilatation catheter for delivering a therapeutic agent within a body lumen having a wall with a thickness is provided having a balloon having a flexible wall including a polymer with dispersed nanotubes and pores configured to close below a predefined pressure and to open at or above a predefined pressure. In some embodiments, an actuator is provided to controllably inflate the balloon with a fluid at a pressure sufficient to bring the flexible wall of the balloon into contact with at least a portion of the wall of the body lumen but below the predefined pressure, and to controllably increase the pressure of the fluid within the inflated balloon to at least the predefined pressure at a rate and with a force sufficient to deliver the therapeutic agent from the pores and through at least a portion of the thickness of the wall of the body lumen.Type: ApplicationFiled: July 11, 2008Publication date: January 14, 2010Applicant: Paragon Intellectual Properties, LLCInventor: Mark C. Bates
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Patent number: 7641668Abstract: An apparatus and method for ejecting fluid from a fluid delivery system. The fluid delivery system has a pneumatic assembly that when triggered injects gas into a hydraulic assembly, which in turn ejects fluid through an external interface. An electronic interface displays various measurements, for example, how much fluid has been ejected and if the hydraulic system is closed the pressure of the system. The pneumatic assembly can also be depressurized such that fluid can reenter the hydraulic assembly through the external interface.Type: GrantFiled: May 16, 2003Date of Patent: January 5, 2010Assignee: SCIMED Life Systems, Inc.Inventors: Stephen J. Perry, Michele B. Carter, David R. Conti, Thomas F. Janecek, Bryan D. Knodel, Anthony Scott Hollars, Peter Crowley, Donald C. Hovey, William Lucas Churchill, John C. Golden, Yem Chin, Mark L. Adams, Carleton E. Yee, Otto E. Anderhub
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Patent number: 7635346Abstract: Apparatus is provided for use with a biologically-compatible-fluid pressure source, the apparatus including an elongate carrier, adapted to be inserted through a proximal opening of a body lumen, and a piston head coupled to a distal portion of the carrier. The piston head is adapted to form a pressure seal with a wall of the lumen after the carrier has been inserted into the lumen, and to be advanced distally through the body lumen in response to pressure from the fluid pressure source. The apparatus is configured to facilitate distal advancement of the piston head by facilitating passage of fluid out of the lumen from a site within the lumen distal to the piston head. The apparatus additionally includes an optical system, coupled to the carrier in a vicinity of the distal portion, the optical system having distal and proximal ends.Type: GrantFiled: October 18, 2004Date of Patent: December 22, 2009Assignee: G. I. View Ltd.Inventors: Oz Cabiri, Yossi Gross, Boris Degtiar, Eran Shor
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Patent number: 7635345Abstract: Apparatus is provide for use with a fluid pressure source, including an elongate carrier, adapted to be inserted through a proximal opening of a body lumen, and a distal piston head coupled to a distal portion of the carrier. The piston head is adapted to be in direct contact with a wall of the lumen when the carrier is inserted into the lumen, and to be advanced distally through the body lumen in response to pressure from the fluid pressure source. Additionally, the piston head is typically adapted to facilitate passage of fluid out of the lumen from a site within the lumen distal to the piston head.Type: GrantFiled: May 3, 2004Date of Patent: December 22, 2009Assignee: G. I. View Ltd.Inventors: Yossi Gross, Oz Cabiri, Boris Degtiar, Eran Shor
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Publication number: 20090299282Abstract: Methods and devices for augmenting bone, such as in performing vertebroplasty are disclosed. A bone cement injection needle is provided, having a laterally deflectable distal end. The distal end may be provided with one or two or more cavity creation elements, such as inflatable balloons. A cavity creation element may include one or more filament layers. Systems are also disclosed, including the steerable injection needle, introducer and stylet. The system may additionally include a cement delivery gun, one-time use disposable cement cartridges and a cement mixing chamber. Methods are also disclosed.Type: ApplicationFiled: May 20, 2009Publication date: December 3, 2009Applicant: Osseon Therapeutics, Inc.Inventors: Jan R. Lau, Michael T. Lyster, Robert C. Lichty, II
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Publication number: 20090299261Abstract: In accordance with certain embodiments of the present disclosure, a catheter is provided. The catheter includes a body having a proximal portion and a distal portion. The body comprises a first element sealably interwoven with a second element to define a longitudinally extending lumen configured to pass fluid therethrough. The first element is wound in a clockwise direction and the second element is wound in a counterclockwise direction. The body further comprises a mechanism configured to cause the distal portion of the body to move toward the proximal portion causing the diameter of the lumen to increase.Type: ApplicationFiled: June 3, 2009Publication date: December 3, 2009Inventor: Istvan Bognar
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Publication number: 20090292278Abstract: Disclosed is an apparatus that includes a modifiable fiber structure adapted to operate in at least two configurations such that in a sideways-firing configuration the fiber structure is adapted to emit radiation in a substantially sideways direction relative to a longitudinal axis of the fiber structure, and in another, axial-firing, configuration the fiber structure is adapted to emit radiation in a substantially axial direction relative to the longitudinal axis of the fiber structure. Also disclosed is another apparatus that includes a guide tube disposed within a scope, the guide tube configured to be advanced to a position near an area to be treated so that the scope can be advanced along the guide tube to the position near the area to be treated. The guide tube is further configured to receive a treatment instrument to perform a treatment procedure on the area to be treated.Type: ApplicationFiled: April 2, 2009Publication date: November 26, 2009Applicant: Lumenis Ltd.Inventors: Reuven M. Lewinsky, Roee Khen
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Patent number: 7615031Abstract: A gas inflation/evacuation system incorporating a multiple element valved guidewire assembly having an occlusive device for use in thrombectomy or other vascular procedures includes a multiple element valved guidewire assembly having an occlusive balloon removably and sealingly connectible to an included manifold assembly where a guidewire tube defines a lumen for inflation or deflation of the occlusive balloon. A first syringe for evacuating the lumen and a second syringe for introducing a biocompatible gas into the lumen to inflate the occlusive balloon that is in fluid communication with the lumen a plurality of times are included. A sealing valve arrangement selectively seals the proximal portion of the guidewire tube to control inflated or deflated states of the occlusive balloon.Type: GrantFiled: September 1, 2005Date of Patent: November 10, 2009Assignee: MEDRAD, Inc.Inventors: Michael J. Bonnette, Richard R. Prather, Eric J. Thor
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Patent number: 7611482Abstract: There is provided a minimally-invasive smart device which can detect environmental conditions in the vicinity of a target site within a patient's body and autonomously determine whether the medical device on the distal end of the instrument should be activated to perform, or inhibited from performing, a desired minimally-invasive medical procedure. The smart device includes a medical device affixed to the distal end of a lumen, at least one environmental condition sensor adapted to detect an environmental condition adjacent to the medical device, and at least one medical device actuator which responds to signals from an environmental condition sensor to either cause the medical device to perform the desired medical procedure or to inhibit operation of the medical device actuator.Type: GrantFiled: November 21, 2002Date of Patent: November 3, 2009Assignee: Boston Scientific Scimed, Inc.Inventors: Wendy Naimark, Henry Tung, Maria Palasis
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Publication number: 20090187101Abstract: To accomplish isolation and removal of a substance from a vasculature, a catheter is employed to occlude a vessel of the vasculature. The substance is thus isolated in the vasculature and can be removed. In this way, the substance is removed before entering other parts of the circulatory system. This method is applicable to removal of contrast from the coronary sinus shortly after injection of the coronary arteries with the contrast. The method substantially minimizes or avoids renal dysfunction caused by angiographic procedures in which contrast must be injected. Such angiographic procedures are often performed during intervention procedures. This method substantially prevents circulation of the contrast to the kidneys where it could otherwise cause renal dysfunction or failure. The apparatus for implementation of the method is also disclosed.Type: ApplicationFiled: March 27, 2009Publication date: July 23, 2009Inventor: M. Reza Movahed
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Publication number: 20090156997Abstract: A device for delivering an allograft patch through a cannula provides for feeding of the device and the allograft patch through the cannula and provides for deploying of the allograft patch after feeding through the cannula.Type: ApplicationFiled: December 12, 2008Publication date: June 18, 2009Applicant: ROCKFORD ORTHOPAEDIC SPORTS MEDICINE SERVICES, LLCInventor: SCOTT TRENHAILE
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Publication number: 20090099516Abstract: The invention is directed to a balloon catheter comprising, in addition to one or more balloons and one or more inflating/deflating conduits having a novel design which enables a predetermined sequence of inflation/deflation of a number of balloons via a single lumen. The invention is also directed to an indwelling device for direct organ (renal) perfusion to be harnessed to a standard single lumen pump drive. The invention is also directed to perfusion of a side branch vessel (e.g. renal artery) from a main branch vessel (e.g. aorta) with minimal risk of obstructing the target vessel.Type: ApplicationFiled: November 7, 2005Publication date: April 16, 2009Inventors: Zvi M. Gildoni, Eran Hirszowicz
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Publication number: 20090069878Abstract: A catheter assembly includes a balloon member and a balloon restricting arrangement. The balloon member includes a proximal portion, a distal portion and a circumferential bulge portion. The circumferential bulge portion extends around a circumference of the balloon member and is positioned at a location between the proximal and distal portions of the balloon member. The balloon restricting arrangement includes a proximal portion extending around the proximal portion of the balloon member and a distal portion extending around the distal portion of the balloon member to restrict an inflated size of the proximal and distal portions of the balloon member. The proximal and distal portions of the balloon restricting arrangement are spaced apart axially, and the circumferential bulge portion extends radially outward therebetween.Type: ApplicationFiled: August 1, 2008Publication date: March 12, 2009Applicant: Boston Scientific Scimed, Inc.Inventors: Jan Weber, James M. Anderson, Karl Jagger, James Lee Shippy
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Patent number: 7481778Abstract: A steerable guidewire having a deflectable distal tip which comprises a longitudinal hypotube and an interlocking spring coil attached to the distal end of the hypotube and also includes a longitudinally movable deflection member which is attached to the distal end of the spring coil and a tip retaining ribbon which extends from the distal end of the hypotube to the distal end of the spring coil for providing very precise deflection of the distal tip. The distal end of the deflection member has “skived,” or tapered, sides to enhance the flexibility of the guidewire.Type: GrantFiled: October 31, 2006Date of Patent: January 27, 2009Assignee: Cordis CorporationInventors: Rudolph Cedro, David D. Grewe, Hikmat Hojeibane
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Patent number: 7481793Abstract: An apparatus for accessing a site within a body includes a cannula and an elongate member. The cannula has a proximal end, a distal end, and a lumen extending therebetween. The elongate member has a distal end configured for insertion into the lumen, wherein the distal end of the elongate member is attachable to and releasable from the distal end of the cannula. A method for accessing a site within a body includes inserting a distal end of an elongate member into a lumen of a cannula, detachably attaching the distal end of the elongate member to the cannula, and steering a distal end of the cannula to a desired site using the elongate member.Type: GrantFiled: December 10, 2003Date of Patent: January 27, 2009Assignee: Boston Scientic Scimed, Inc.Inventors: Robert M. Abrams, Michael P. Wallace
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Publication number: 20090024087Abstract: A balloon catheter including an inflatable balloon affixed to a catheter. The proximal end of the balloon is affixed to the distal end of the catheter so as to provide an air tight seal there between. A stiffening member extends distally of the distal end of the catheter and forms a slip joint connection with the distal end of the balloon to permit the distal end of the balloon to axially move or translate relative to the distal end of the catheter. The slip joint allows the axial length of balloon to change during inflation or deflation without transferring tensile or compressive forces between the balloon and the catheter. A balloon folding control mechanism is disposed about the portion of the stiffening member traversing the interior of the balloon, and is configured to promote refolding of the balloon into a predetermined and desired folding configuration upon deflation.Type: ApplicationFiled: July 7, 2008Publication date: January 22, 2009Applicant: Wilson-Cook Medical Inc.Inventors: Kenneth C. Kennedy, II, Matthew P. Carter
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Publication number: 20090018500Abstract: A balloon catheter including an inflatable balloon affixed to a catheter. The proximal end of the balloon is fixedly connected to the distal end of the catheter, and the distal end of the balloon is supported by stiffening member that extends distally from the distal end of the catheter and through the interior of the balloon. The distal end of the catheter comprises one or more apertures that are in fluid communication with an inflation lumen extending through the catheter. A deflation mechanism is disposed about the stiffening member and is configured to facilitate the flow of an inflation fluid through the interior volume of the balloon and towards the aperture.Type: ApplicationFiled: July 7, 2008Publication date: January 15, 2009Applicant: Wilson-Cook Medical Inc.Inventors: Matthew P. Carter, Kenneth C. Kennedy, II
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Publication number: 20090012467Abstract: A balloon pumping method of inflating and deflating a balloon includes the steps of setting a pressure in the balloon at a first pressure value, which is higher than a minimum pressure value and is substantially equal to or lower than a maximum pressure value, when the balloon is shifted from a deflated condition to an inflated condition, and setting the pressure in the balloon at a second pressure value, which is substantially equal to or higher than the minimum pressure value and lower than the first pressure value, when the balloon is estimated to have completely inflated at the first pressure value.Type: ApplicationFiled: September 16, 2008Publication date: January 8, 2009Applicant: SENKO MEDICAL INSTRUMENT MFG. CO., LTD.Inventors: Akira Suzuki, Hideaki Yamaguchi
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Publication number: 20090005733Abstract: Embodiments include an infusion-occlusion system having a delivery catheter, a guide catheter adapted to receive the delivery catheter, and a guidewire with an occlusion device adapted to be received within the guide catheter. The guide catheter of the catheter kit may be provided with an occlusion device at the distal end of the guide catheter. The delivery catheter may have an accessory lumen, coaxial or co-linear lumen, a supporting mandrel, or an occlusion device at its distal end. Moreover, according to some embodiments, occlusion devices may be a single material or a composite balloon having an inner liner and an outer layer of different materials, a high compliance low pressure balloon, or a filter device that restricts particles from passing through but does not restrict fluid, such as blood. An inflation device with a large volume and low volume syringe can be used to inflate the balloon.Type: ApplicationFiled: October 24, 2007Publication date: January 1, 2009Inventors: Jessica G. Chiu, Gregory Waimong Chan, Gabriel Asongwe, Robert C. Esselstein, Douglas Gesswein, Srinivasan Sridharan, Nianjiong Joan Bei, William E. Webler, Stephen G. Schaible, Mina Chow, Yan Shen, Hongzhi Bai, Mark J. Bly, Thomas R. Hatten
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Publication number: 20080306441Abstract: A balloon catheter including an inflatable balloon affixed to a catheter. The proximal end of the balloon is affixed to the distal end of the catheter so as to provide an air tight seal there between. A stiffening member extends distally of the distal end of the catheter and forms a slip joint connection with the distal end of the balloon to permit the distal end of the balloon to axially move or translate relative to the distal end of the catheter. The slip joint allows the axial length of balloon to change during inflation or deflation without transferring tensile or compressive forces between the balloon and the catheter, thereby preventing transverse creases from forming in the surface of the balloon and preventing the catheter from bowing. The stiffening member provides alignment and lateral support to the distal end of the balloon.Type: ApplicationFiled: April 7, 2008Publication date: December 11, 2008Applicant: Wilson-Cook Medical Inc.Inventors: Hilbert D. Brown, Steven K. Chen, Kenneth C. Kennedy, II
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Publication number: 20080306440Abstract: The present invention provides a balloon catheter system comprising one or more conduits to which are attached a compliant balloon having a non-helical shape in its deflated state, wherein said balloon is constructed such that is capable of adopting a spiral or helical conformation upon inflation. In addition, the present invention also provides methods for using said balloon catheter system.Type: ApplicationFiled: March 27, 2008Publication date: December 11, 2008Inventors: Eran Hirszowicz, Hila Yaron
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Publication number: 20080243067Abstract: A device, such as for use with lumen reentry, including a catheter including a balloon disposed at a distal end thereof, the catheter being formed with a first lumen through the balloon for passing therethrough a guidewire and a second lumen for inflation and deflation of the balloon, the catheter and the balloon being sized and shaped for entry between two layers of a wall of a body lumen, wherein upon expansion of the balloon when placed between the layers, a distal portion of the first lumen that passes through the balloon is bent with respect to a portion of the first lumen proximal to the balloon and is directed towards the body lumen.Type: ApplicationFiled: March 30, 2008Publication date: October 2, 2008Inventors: Dan Rottenberg, Abi Zakay
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Publication number: 20080243066Abstract: Disclosed is a combination perfusion and occlusion device that can have a perfusion member, an occlusive member and an elongate member. The perfusion member can be an elongate perfusion member that can have a collapsed configuration and an expanded configuration. In the collapsed configuration, the perfusion member can be disposed around the elongate member. In the expanded configuration, the perfusion member can define a perfusion lumen. The occlusive member can have a collapsed configuration and an expanded configuration. The occlusive member in the collapsed configuration can have a low profile that can facilitate insertion of the occlusive member in a body lumen. In the expanded configuration the occlusive member can be a structure that restricts the flow of fluids through a body vessel, for example a filter or another structure that restricts the flow of fluids. The occlusive member can be disposed on the elongate member, for example on a distal portion of the elongate member.Type: ApplicationFiled: March 30, 2007Publication date: October 2, 2008Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Mark L. Jenson, William J. Drasler
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Publication number: 20080200896Abstract: Device and method for treating a vessel including for example the insertion of a catheter toward a target destination using a guidewire. The catheter may include for example a proximal balloon, being shaped to enable the formation of for example a funnel shape when infated, and a distal balloon. The target destination, for example, a thrombosis, chronic total occlusion or myocardial infarction area may be substantially enclosed by the proximal balloon and the distal balloon.Type: ApplicationFiled: July 13, 2005Publication date: August 21, 2008Inventors: Ascher Shmulewitz, Zeev Brandeis
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Publication number: 20080167607Abstract: The invention relates to an enteral feeding catheter (1) for channelling flowable nutrient into a patient's digestive tract, such as into patients stomach, duodenum or jejunum, said catheter having a first lumen (2), having an opening (3) for connecting it to a supply for of nutrient and channelling said nutrient from the proximal end (P) to the distal end (D), the distal end (D) of the first lumen (2) being provided with several radial outlets (4) for the exit of said nutrient into patient's digestive tract, the catheter (1) further comprising a second lumen (7), for being connected to a source/sink of gas (26) and a gas pressure gauge (24) at its proximal end and being connected to an inflatable and deflatable distal balloon (6) provided on the catheter (1) near the distal end (D). The invention refers also to a computer system and computer program to operate said feeding catheter.Type: ApplicationFiled: January 3, 2006Publication date: July 10, 2008Inventors: Ulrich Pfeiffer, Reinhold Knoll, Manu Malbrain
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Patent number: 7363072Abstract: To accomplish isolation and removal of a substance from a vasculature, a catheter is employed to occlude a vessel of the vasculature. The substance is thus isolated in the vasculature and can be removed. In this way, the substance is removed before entering other parts of the circulatory system. This method is applicable to removal of contrast from the coronary sinus shortly after injection of the coronary arteries with the contrast. The method substantially minimizes or avoids renal dysfunction caused by angiographic procedures in which contrast must be injected. Such angiographic procedures are often performed during intervention procedures. This method substantially prevents circulation of the contrast to the kidneys where it could otherwise cause renal dysfunction or failure. The apparatus for implementation of the method is also disclosed.Type: GrantFiled: January 23, 2002Date of Patent: April 22, 2008Assignee: Catharos Medical Systems, Inc.Inventor: M. Reza Movahed
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Patent number: 7351214Abstract: A steerable balloon catheter including a balloon catheter supported by a steerable guidewire having a deflectable distal tip. The guidewire comprises a longitudinal hypotube and a spring coil attached to the distal end of the hypotube and includes a longitudinally movable deflection member which is attached to the distal end of the spring coil and a tip retaining member which extends from the distal end of the hypotube to the distal end of the spring coil for providing very precise deflection of the distal tip of the balloon catheter.Type: GrantFiled: October 23, 2003Date of Patent: April 1, 2008Assignee: Cordis CorporationInventor: Robert Burgermeister
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Patent number: 7314461Abstract: A medical device including an inflation element, such as a syringe, and a balloon catheter in which the inflation element includes a series of indicia to which an operative portion of the inflation device can be aligned. The indicia directly correspond to a particular balloon diameter. A method of inflating a balloon to at least two desired diameters in a body lumen and determining the inflation diameter of the balloon within the body lumen. A method of calibrating the inflation device to allow a user to inflate a balloon to a desired diameter.Type: GrantFiled: April 23, 2003Date of Patent: January 1, 2008Assignee: Wilson-Cook Medical, Inc.Inventors: Matthew P. Carter, Gregory J. Skerven
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Publication number: 20070299433Abstract: A medical device for treating esophageal tissue comprises a catheter, a balloon, placeable within the esophagus of the patient, and a refrigerant. The refrigerant is deliverable into the interior of the balloon so to place the balloon into an expanded, cooled state so that the balloon can press against and cool esophageal tissue. In other examples the medical device may include means for limiting radial expansion of the balloon.Type: ApplicationFiled: June 26, 2007Publication date: December 27, 2007Applicant: C2 TherapeuticsInventors: Richard S. Williams, Peter Garcia-Meza
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Patent number: 7220243Abstract: A gas inflation/evacuation system and sealing system for use with occlusive devices in vascular procedures. The gas inflation/evacuation system is removably connectable via the sealing system to a proximal portion of a guidewire assembly having a guidewire that defines a lumen and includes a first syringe system for evacuating the lumen and a second syringe system for introducing a biocompatible gas into the lumen to inflate an occlusive balloon that is in fluid communication with the lumen a plurality of times. The sealing system selectively seals the proximal portion of the guidewire and includes a crimping mechanism and a compression sealing mechanism having a resilient seal for sealing around the proximal portion of the guidewire when it is passed therethrough.Type: GrantFiled: May 4, 2004Date of Patent: May 22, 2007Assignee: Possis Medical, Inc.Inventors: Michael J. Bonnette, Eric J. Thor, Richard R. Prather
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Patent number: 7195610Abstract: A pneumatic syringe driver having a control module for regulating pressure applied to the plunger of an associated syringe is disclosed. The syringe driver is adapted for receiving a compressed gas canister and for enabling the selective release of gas from the canister into a chamber, one wall of which being formed by the syringe plunger via a three-way valve. The valve also enables the selective venting of gas from the canister into the atmosphere, thereby forming a venturi which reduces the pressure in the chamber and causes the syringe plunger to be withdrawn into the chamber. A pressure sensor in communication with the control module is provided for pressure feedback. Pushbuttons or switches in communication with the control module are provided for defining the syringe driver operation. The device is suited for the selective inflation and deflation of a balloon attached to the syringe driver for a balloon angioplasty procedures.Type: GrantFiled: September 17, 2002Date of Patent: March 27, 2007Assignee: Cardinal Health 303, Inc.Inventor: Eric J. Flachbart
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Patent number: 7169161Abstract: A tubular guidewire assembly having a distal occlusive device and an extended crimpable section proximate a proximal end that is adapted to connect to a gas inflation/evacuation system. The extended crimpable section can be selectively sealed at one of a plurality of separate locations to form an airtight seal of the tubular guidewire assembly. Each time a deflation of the occlusive device is desired in order to reestablish blood flow to a vessel downstream of the occlusive device, the extended crimpable section preferably is cut distal to the location of the last seal to quickly deflate the occlusive device.Type: GrantFiled: November 6, 2001Date of Patent: January 30, 2007Assignee: Possis Medical, Inc.Inventors: Michael J. Bonnette, Eric J. Thor, Mark L. Jenson, Rick C. Kravic, Hieu V. Le
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Patent number: 7160266Abstract: An improved balloon catheter which includes a purge mechanism for purging air from the catheter prior to use. The purge mechanism is sized to allow air to pass through, but highly restricts the flow of liquids. Air remaining in the catheter after purging is allowed to diffuse through the balloon prior to use. The mechanism is especially useful with low-pressure, gas-permeable, compliant balloons.Type: GrantFiled: July 28, 2005Date of Patent: January 9, 2007Assignee: Cordis Neurovascular, Inc.Inventor: Boris Shkolnik