Patents by Inventor Bruce H. Wand
Bruce H. Wand has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5921978Abstract: A catheter including fluoroscopic marker components disposed in the catheter distal end portion to provide enhanced fluoroscopic visibility of the catheter end portion. Various embodiments of the marker include a cylindrical plug disposed within the catheter tip, a half section catheter tip, a longitudinal stripe along a sidewall of the catheter end portion, and multiple combinations of marker plugs and marker stripes to provide enhanced in vivo fluoroscopically visible catheter disposition information to the physician. An enhanced embodiment of the present invention includes an orientation marker that is disposed on the steering handle, particularly on the control knob, to provide visual and tactile information to the catheter user regarding the direction to manipulate the control knob in order to maneuver the catheter distal end portion.Type: GrantFiled: June 20, 1997Date of Patent: July 13, 1999Assignee: EP Technologies, Inc.Inventors: Russell B. Thompson, Sidney D. Fleischman, Bruce H. Wand
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Patent number: 5885272Abstract: A method and apparatus are described for percutaneous myocardial revascularization of a human heart. A deflectable elongated flexible lasing apparatus is used which includes a source of laser radiation, an elongated flexible radiation conveying member for conducting the laser radiation to a lens on the distal end of the radiation conveying member for focusing the laser radiation, and control lines for deflecting the distal end of the radiation conveying member. The control lines are secured to the distal end of the radiation conveying member for changing the angle of deflection of the distal end of the radiation conveying member. The lasing apparatus is guided to an area within the patient's heart, and the distal end of the lasing apparatus is directed to an area of interest where the inner wall of the heart is irradiated with laser energy to form a channel through the myocardium for a desired distance. In a preferred embodiment, channels are formed without perforating the epicardium of the heart.Type: GrantFiled: November 21, 1995Date of Patent: March 23, 1999Inventors: Michael Aita, Gene Samson, Bruce H. Wand, Robert F. Kotmel
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Patent number: 5525388Abstract: A balloon for a dilatation catheter having a cylindrically shaped working section and tapered end sections which have essentially the same wall thicknesses. Upon deflation, the balloon collapses to a much smaller profile than conventional dilatation catheters. The balloon is preferably formed from a tubular parison which has a central thick walled portion. The balloon may be employed in dilatation catheters for angioplasty, prostatic urethra dilatations and other intraluminal dilatations.Type: GrantFiled: June 3, 1994Date of Patent: June 11, 1996Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Bruce H. Wand, Richard J. Saunders
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Patent number: 5451209Abstract: A composite tubular element for intravascular catheters, such as fixed-wire dilatation catheters and guiding and angiographic catheters, which is formed by braiding strands formed from an intimate mixture of polymeric matrix materials, such as fibers and powders, having a relatively low melting point and high strength reinforcing fibers having a relatively high melting point into a tubular element, heating the braided tubular element to melt the low melting point matrix materials and flow around the reinforcing fibers to form a matrix. A thermoplastic jacket or coating may then be extruded or otherwise applied to the exterior of the braided tubular element.Type: GrantFiled: February 16, 1994Date of Patent: September 19, 1995Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Robert D. Ainsworth, Bruce H. Wand, David T. Jacobson
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Patent number: 5389096Abstract: A method and apparatus are described for percutaneous myocardial revascularization of a human heart. A deflectable elongated flexible lasing apparatus is used which includes a source of laser radiation, an elongated flexible radiation conveying means for conducting the laser radiation to a lens on the distal end of the radiation conveying means for focusing the laser radiation, and control lines for deflecting the distal end of the radiation conveying means. The control lines are secured to the distal end of the radiation conveying means for changing the angle of deflection of the distal end of the radiation conveying means. The lasing apparatus is guided to an area within the patient's heart, and the distal end of the lasing apparatus is directed to an area of interest where the inner wall of the heart is irradiated with laser energy to form a channel through the myocardium for a desired distance. In a preferred embodiment, channels are formed without perforating the epicardium of the heart.Type: GrantFiled: February 25, 1993Date of Patent: February 14, 1995Assignee: Advanced Cardiovascular SystemsInventors: Michael Aita, Gene Samson, Bruce H. Wand, Robert F. Kotmel
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Patent number: 5290230Abstract: A composite tubular element for intravascular catheters, such as fixed-wire dilatation catheters and guiding and angiographic catheters, which is formed by braiding strands formed from an intimate mixture of polymeric matrix materials, such as fibers and powders, having a relatively low melting point and high strength reinforcing fibers having a relatively high melting point into a tubular element, heating the braided tubular element to melt the low melting point matrix materials and flow around the reinforcing fibers to form a matrix. A thermoplastic jacket or coating may then be extruded or otherwise applied to the exterior of the braided tubular element.Type: GrantFiled: May 11, 1992Date of Patent: March 1, 1994Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Robert D. Ainsworth, Bruce H. Wand, David T. Jacobson
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Patent number: 4898577Abstract: Guiding catheter and method of using the same in a cardiovascular procedure such as coronary angioplasty. The catheter has an elongated shaft with a deflectable distal portion. One lumen extends through the elongated shaft to form a passageway through which a dilatation catheter can be introduced. A second smaller lumen extends through the shaft to form a passageway for a control line which passes therethrough and which is connected to the distal tip. Proximal movement of the control line decreases the included angle between the distal portion and the main portion of the shaft. Pull on the control line also exerts a force on the distal portion of the guiding catheter which transmits a resultant axial force to push the catheter disposed within the first lumen. Pull on the control line also allows for catheter tip configuration adjustment thereby enabling the catheter to engage a difficult coronary ostium. In the disclosed embodiments, the distal portion is formed in two sections.Type: GrantFiled: September 28, 1988Date of Patent: February 6, 1990Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Rodney S. Badger, Lawrence D. Wasicek, Bruce H. Wand
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Patent number: 4024857Abstract: A micro device for collecting blood from an individual or other blood source into a blood sampler cup, which cup has a removable vented top with a capillary tube passing through the top and contacting or proximate to the inside wall of the cup to deliver blood directly from the blood source to the cup.Type: GrantFiled: December 11, 1975Date of Patent: May 24, 1977Assignee: Becton, Dickinson and CompanyInventors: Jacob B. Blecher, Gene W. Tabor, Charles F. Steinbrink, Jr., Bruce H. Wand