Patents Assigned to C.R. Bard, Inc.
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Patent number: 6331185Abstract: Implants and associated delivery systems for promoting angiogenesis in ischemic tissue are provided. The implants may be delivered percutaneously, thoracically or surgically and are particularly well suited for implantation into the myocardium of the heart. The implants are configured to be flexible so that they compress and expand with corresponding movement of the surrounding tissue into which they are implanted. The flow of blood into the implant and pooling of the blood in and around the implant leads to thrombosis and fibrin growth, a healing process that leads to angiogenesis in the tissue surrounding the implant. Additionally, the implants may contain an angiogenic substance or a thrombus of blood, preloaded or injected after implantation to aid in initiating angiogenesis.Type: GrantFiled: September 30, 1998Date of Patent: December 18, 2001Assignee: C.R. Bard, Inc.Inventors: Richard A. Gambale, Stephen J. Forcucci, Michael F. Weiser, Richard T. Choh, Sean Forde
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Patent number: 6319250Abstract: A method of treating cardiac arrhythmia, including guiding a distal end portion of a catheter, the distal end portion having a distal tip and accommodating an elongated configuration of ablation electrodes, from the inferior vena cava into the right atrium of a human heart, guiding the distal end portion from the right atrium into the right ventricle of the heart, deflecting the distal tip into a hook configuration, pulling the catheter towards the inferior vena cava until the hook configuration engages the tricuspid annulus of the heart and the configuration of electrodes engages the isthmus of tissue between the tricuspid annulus and the inferior vena cava of the heart, and activating the configuration of electrodes to produce a substantially continuous lesion on the isthmus of tissue.Type: GrantFiled: November 23, 1998Date of Patent: November 20, 2001Assignee: C.R. Bard, IncInventors: Gary S. Falwell, Ian D. McRury, Michael C. Peterson, Paul J. Wang
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Publication number: 20010039446Abstract: Shape memory alloy and elastically self-expanding endoluminal stents which are at least partially encapsulated in a substantially monolithic expanded polytetrafluoroethylene (“ePTFE”) covering. An endoluminal stent, which has a reduced diametric dimension for endoluminal delivery and a larger in vivo final diametric diameter, is encapsulated in an ePTFE covering which circumferentially covers both the luminal and abluminal walls along at least a portion of the longitudinal extent of the endoluminal stent. The shape memory endoluminal stent is fabricated from a shape memory alloy which exhibits either shape memory or pseudoelastic properties or from an elastic material having an inherent spring tension.Type: ApplicationFiled: April 9, 1997Publication date: November 8, 2001Applicant: IMPRA, Inc., a subsidiary of C.R. Bard, Inc.Inventors: TARUN J. EDWIN, BRENDAN J. MCCRAE, CHRISTOPHER E. BANAS
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Publication number: 20010025160Abstract: A system is provided for aspirating fluid from a surgical site. The system includes an outlet tube that leads to a suction canister or other suitable receptacle for collecting fluid. The outlet tube includes an anti-siphon adapter which defines an atmospheric vent downstream of the outflow connection to an endoscopic device. The vent allows atmospheric pressure to enter the outlet tube to increase the pressure at the outflow of the endoscopic device.Type: ApplicationFiled: March 8, 2001Publication date: September 27, 2001Applicant: C.R. BARD, INC.Inventors: Augustus Felix, Debra Ranucci
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Publication number: 20010012935Abstract: An ablation catheter including a probe, an electrode mounted on the probe so as to be movable relative thereto, a remote-operated actuator means for moving the electrode, an elongate conductor connected to the electrode and insulation provided around the conductor. The insulation can include a sleeve axially slidable on the probe, the elongate conductor extending longitudinally between the probe and the insulation sleeve and the insulation sleeve being retractable at least in part into a recess formed in a rearward portion of the probe.Type: ApplicationFiled: April 11, 2001Publication date: August 9, 2001Applicant: C.R. Bard, Inc.Inventors: John Mark Morgan, Andrew David Cunningham
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Patent number: 6270530Abstract: A prosthetic repair fabric including a sheet of tissue infiltratable fabric and a second sheet, also preferably including tissue infiltratable fabric, which is united with the first sheet. The second sheet is fused to an adhesion resistant barrier, forming a laminate composite prosthesis without degrading the mechanical properties or tissue ingrowith capability of the first sheet.Type: GrantFiled: June 9, 2000Date of Patent: August 7, 2001Assignee: C.R. Bard, Inc.Inventors: Stephen N. Eldridge, Milo A. Titone
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Publication number: 20010010012Abstract: A method for selectively bonding layers of polymeric material, especially expanded polytetrafluoroethylene (ePTFE), to create endoluminal vascular devices. In a preferred method the selective bonding is achieved by applying pressure to selected areas using a textured mandrel. This permits a stent device to be encapsulated between two layers of ePTFE with unbonded slip pockets to accommodate movement of the structural members of the stent. This allows stent compression with minimal force and promotes a low profile of the compressed device. Unbonded regions of ePTFE allow enhanced cellular penetration for rapid healing and can also contain bioactive substance that will diffuse through the ePTFE to treat the vessel wall.Type: ApplicationFiled: January 16, 2001Publication date: July 26, 2001Applicant: IMPRA, Inc., a subsidiary of C.R. Bard, Inc.Inventors: Tarun J. Edwin, Scott L. Randall, Brendan McCrea, Christopher E. Banas
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Publication number: 20010009981Abstract: A flexible, kink-resistant, low-friction guidewire for positioning a medical instrument through tortuous passageways within a patient is disclosed. The guidewire includes a core wire which remains substantially free of any residual strain when it is positioned within the patient, a metal coil about the core wire and extending substantially the entire length of the core, a primer coating on the coil and a hydrophilic, lubricous coating on the primer coating. The core wire is preferably a superelastic metal alloy such as Nitinol. The metal coil is preferably formed from a wire with a rectangular cross section. The primer is preferably one which reacts with species of isocyanate or hydroxyl, and the hydrophilic, lubricous coating is preferably a cross- linked polymer selected from the group of polyurethane, polyurea, and polyurethaneurea, complexed with a hydrophilic complexing species such as poly(ethylene oxide) or polyvinylpyrrolidone. A method for manufacturing and coating such a guidewire is also disclosed.Type: ApplicationFiled: February 15, 2001Publication date: July 26, 2001Applicant: C.R. Bard, Inc.Inventors: Tom DuBois, Richard Elton, Gary Teague
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Patent number: 6264684Abstract: Shape memory alloy and elastically self-expanding endoluminal support structures which are at least partially encapsulated in a substantially monolithic expanded polytetrafluoroethylene (“ePTFE”) covering. An endoluminal stent, which has a reduced diametric dimension for endoluminal delivery and a larger in vivo final diametric diameter, is encapsulated in an ePTFE covering which circumferentially covers both the luminal and abluminal walls along at least a portion of the longitudinal extent of the endoluminal stent. The stent and ePTFE covering are helically wound into an open cylindrical configuration with adjacent windings forming overlapping regions of ePTFE covering bonded to one another.Type: GrantFiled: December 22, 1997Date of Patent: July 24, 2001Assignee: IMPRA, Inc., a subsidiary of C.R. Bard, Inc.Inventors: Christopher E. Banas, Tarun J. Edwin, Brendan J. McCrea, Rajagopal R. Kowligi
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Patent number: 6251418Abstract: A system and method for implanting pellets into myocardial tissue for treatment of coronary artery restenosis, ischemic heart disease, or cardiac conduction of disturbances. The mechanism of delivery can be transcatheter via chambers of the heart, endoscopic pericardial approach via minimally invasive transthoracic access, or intraoperative pericardial approach during open-chest surgery. Noncardiac tissues can also be treated.Type: GrantFiled: December 18, 1997Date of Patent: June 26, 2001Assignee: C.R. Bard, Inc.Inventors: John E. Ahern, James F. Crittenden
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Patent number: 6224587Abstract: A medical device including an elongated shaft that is twisted through a predetermined angle. One or more lumen are formed in the shaft and twist through the predetermined angle as well. A pull wire extends through one of the lumen and attaches to a distal portion of the elongated shaft at an off-axis location. By tensioning the pull wire, the medical device can assume various complex curves, depending on the degree of twist imparted to the shaft.Type: GrantFiled: November 22, 1999Date of Patent: May 1, 2001Assignee: C.R. Bard, Inc.Inventor: Charles A. Gibson
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Patent number: 6099535Abstract: A hydraulically multiple ligating band dispenser comprising a body whose distal portion is adapted to support the elastic ligating bands. A tissue contacting surface is disposed surrounding and spaced from the distal portion so as to define a chamber. A seal slidably mounted on the distal potion is shaped to seal the chamber, to which a proximally situated fluid inlet is coupled. By these means pressurized fluid applied to the fluid inlet causes the seal to slide in a distal direction along the distal portion in order to urge the ligating bands distally and to dispense them serially.Type: GrantFiled: March 19, 1999Date of Patent: August 8, 2000Assignee: C.R. Bard, Inc.Inventors: Ronald Lamport, Gregory Stiegmann, Frank Van Patterson
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Patent number: 6096027Abstract: An apparatus for loading a stent onto or into a catheter. A flexible sterile sleeve is provided to encase the stent as it is pulled through a loading device. The loading device is a simple design utilizing a tapered passageway. The passageway has first diameter at a proximal end which tapers to a second diameter, forming a funnel. The passageway continues at the second diameter forming a tube. The sleeved stent is pulled through the loading device from the proximal end to the distal end, smoothly compressing the stent. Depending on the type of stent and catheter being used, the stent is either crimped onto the catheter as it is pulled through the funnel, or is loaded into a catheter positioned at the distal end of the loading device. The sleeve acts to minimize the frictional forces to which the stent is subjected and to eliminate the longitudinal force that the stent would be subjected to if pushed or pulled directly. The sleeve may be close-ended to provide an additional sterility barrier about the stent.Type: GrantFiled: May 12, 1999Date of Patent: August 1, 2000Assignee: Impra, Inc., a subsidiary of C.R. Bard, Inc.Inventor: Richard Layne
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Patent number: 6077243Abstract: An improvement in an internal bolster for a corporeal access tube assembly wherein a retention balloon is preformed of relatively thick silicone rubber film. The balloon includes parallel front and rear sidewalls connected by a semi-circular treadwall, the front sidewall having a front retention surface thereon with a radial width equal to the radius of the treadwall. Annular sleeves at the inner periphery of each sidewall are sealed to the outer surface of a tube segment. Each sleeve extends forwardly of its corresponding sidewall.Type: GrantFiled: October 19, 1998Date of Patent: June 20, 2000Assignee: C.R. Bard, Inc.Inventor: David G. Quinn
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Patent number: 6064902Abstract: A catheter for ablating and/or mapping tissue on the inner wall of a blood vessel, including a body portion and a tip portion having a proximal section and a distal section, the proximal section including a proximal ablation electrode and a proximal mapping electrode and the distal section including a distal ablation electrode and a distal mapping electrode, wherein the tip portion is deflectable from a first, generally straight, configuration in which the proximal and distal sections are substantially co-linear to a second, J-shaped, configuration in which the proximal and distal sections are generally parallel with a separation therebetween substantially corresponding to the inside diameter of the blood vessel.Type: GrantFiled: April 16, 1998Date of Patent: May 16, 2000Assignee: C.R. Bard, Inc.Inventors: Michel Haissaguerre, Donald F. Patterson, James M. Fialkowski
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Patent number: 6039755Abstract: Tubular ePTFE materials which are capable of being radially expanded under the influence of a radially outward force applied from the lumen of the ePTFE tubular material to substantially uniformly radially deform the ePTFE material. The ePTFE material is radially expandable to a diameter 700% its unexpanded diameter under the influence of pressures less than 6 atm while retaining the structural integrity of the ePTFE microstructure. Conservation of the structural integrity of the ePTFE material is determined by conservation of the ePTFE microstructure structural integrity.Type: GrantFiled: February 5, 1997Date of Patent: March 21, 2000Assignee: Impra, Inc., a Division of C.R. Bard, Inc.Inventors: Tarun J. Edwin, Fariba Hurry, Christopher E. Banas
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Patent number: 6007530Abstract: The invention pertains to an angioplasty catheter for expanding and/or opening up morbidly constricted or obstructed blood vessels, comprising at least one rotor (3) that is rotatively mounted in a cylindrical housing (4) at the distal end of the catheter, is connected to a rotational actuator (2) and is guided in the axial and/or radial direction along a preset path of motion (5), where as a result of the guided motion, the turning rotor (3) mechanically generates endogenous sound waves, especially sound waves in the ultrasound range, and induces a corresponding motion of the housing (4).Type: GrantFiled: January 26, 1998Date of Patent: December 28, 1999Assignee: C.R. Bard, Inc.Inventors: Thomas Dornhofer, Burkhard Husslein, Christian Meyer, Erhard Starck, Harry Zscheeg
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Patent number: 5993399Abstract: An automated tissue sampling device is disclosed which permits its needles to be cocked either simultaneously or sequentially and can be cocked with only one hand. The cocking mechanism is arranged so as to virtually eliminate the possibility that the needles will be cocked in the wrong sequence. The physician can readily confirm, either visually or tactilely, whether the device is uncocked, half cocked, or fully cocked. The disclosed tissue sampling device also comprises two different trigger buttons, one adjacent the front end of the device and the other at the rear, and manipulating either of the two trigger buttons will actuate the device.Type: GrantFiled: December 1, 1998Date of Patent: November 30, 1999Assignee: C.R. Bard, Inc.Inventors: Terrell A. Pruitt, David C. Field, Charles N. Jacobs
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Patent number: 5989180Abstract: A removable external closure device is disclosed for managing female urinary incontinence. The device includes a resilient, deformable, hollow body portion and a flange which seals against the tissue surrounding the urethral orifice. When the body portion is squeezed and the flange positioned against the tissue surrounding the urethral orifice, the resilience of the body portion creates a vacuum which holds the device in place and closes the urethral orifice. The device is configured to promote tearing of the flange after a predetermined period of normal use so as to insure that the patient will change the device regularly and thus minimize the possibility of creating an infection or tissue irritation that could result from use of a contaminated or dirty device. In one aspect of the invention tearing is promoted by at least the flange being formed of a composition which exhibits a low tear strength.Type: GrantFiled: April 10, 1998Date of Patent: November 23, 1999Assignee: C.R. Bard, Inc.Inventor: William J. Norton
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Patent number: 5961546Abstract: An endoprosthesis assembly adapted to be securely positioned within a body lumen is provided with one or more hooks adapted to engage tissue that defines the body lumen. The endoprosthesis includes a resilient self-expanding anchor attached to the tubular graft. The anchor and hooks carried by the anchor are constructed to enable the endoprosthesis to be recaptured in a delivery device to enable repositioning or removal of the endoprosthesis and any time prior to complete deployment of the endoprosthesis in the patient.Type: GrantFiled: April 11, 1997Date of Patent: October 5, 1999Assignee: C.R. Bard, Inc.Inventors: Timothy Robinson, Michael Weiser