Patents by Inventor Bernard A. Andreas
Bernard A. Andreas 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: 7300456Abstract: Custom-length self-expanding stent delivery systems and methods enable precise control of prosthesis position during deployment. The stent delivery systems carry multiple stent segments and include a stent bumper for helping control the axial position of the stent segments during deployment. This enables the deployment of multiple prostheses at a target site with precision and predictability, preventing stent segment recoil and ejection from the delivery device and thus eliminating excessive spacing or overlap between prostheses. In particular embodiments, the prostheses of the invention are deployed in stenotic lesions in coronary or peripheral arteries or in other vascular locations.Type: GrantFiled: September 17, 2004Date of Patent: November 27, 2007Assignee: Xtent, Inc.Inventors: Bernard Andreas, Jeffry J. Grainger
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Publication number: 20070270936Abstract: Methods and apparatus for delivering prostheses to body lumens, such as stents and grafts to blood vessels, utilize a delivery device which carries one or more linearized elements. The linearized elements assume non-linear configurations, particularly helical configurations, when advanced and released from the delivery device. By selectively controlling the length and/or number of elements delivered from the delivery device, extended and disseminated disease within the body lumens may be effectively treated.Type: ApplicationFiled: August 8, 2007Publication date: November 22, 2007Applicant: Xtent, Inc.Inventors: Bernard Andreas, Ron French, Allan Will
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Publication number: 20070265637Abstract: Apparatus and methods for delivering stents or stent segments to body lumens include one or more tubular prostheses carried at the distal end of a catheter shaft, a sheath slidably disposed over the prostheses, and a guidewire tube extending from within the sheath to the exterior of the sheath through an exit port in a sidewall thereof. A guidewire extends slidably through the guidewire tube. The sheath can be moved relative to the catheter shaft and the guidewire tube to expose the prostheses for deployment. Mechanisms are described for measuring the distance that the sheath is moved relative to the catheter shaft and/or the guidewire tube, or for counting the number of stents exposed and/or deployed by operation of the device. These mechanisms include optical counting mechanisms, inductive, resistive, and/or magnetic resonating counters, electrical contact counters, and mechanical counters.Type: ApplicationFiled: April 13, 2007Publication date: November 15, 2007Applicant: Xtent, Inc.Inventors: Bernard Andreas, Matthew McDonald, Jay Daulton, Chris Kilgus, Andrew Leopold, Philip Leopold, Matt Maulding
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Patent number: 7294146Abstract: Blood vessels and other body lumens are stented using multiple, discreet stent structures, or continuous coiled or mesh stent structures. Stent structures may be balloon expandable or self-expanding and are delivered by a delivery catheter which is repositioned to spaced-apart delivery sights. By coating the stents with particular biologically active substances, hyperplasia within and between the implanted stents can be inhibited. An exemplary delivery catheter comprises a catheter body having a deployment mechanism for deploying one or more stents of selectable length into the vessel.Type: GrantFiled: July 21, 2003Date of Patent: November 13, 2007Assignee: XTENT, Inc.Inventors: Sunmi Chew, Bernard Andreas, Hanson S. Gifford, III, Ron French, Mark E. Deem, Allan Will
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Publication number: 20070250083Abstract: Various obesity treatment tools and methods are described herein, as well as treatments for other gastric-related diseases, e.g., GERD. Treatment includes reducing the size of the stomach pouch to limit the caloric intake as well as to provide an earlier feeling of satiety. This may be done by creating a smaller gastric pouch within the stomach directly from the interior of the stomach itself. The smaller pouches may be made through the use of individual anchoring devices, rotating probes, or volume reduction devices. A pyloroplasty procedure may also be performed to render the pyloric sphincter incompetent. A gastric bypass procedure may additionally be performed using atraumatic magnetic anastomoses devices so that sugars and fats are passed directly to the bowel while bypassing the stomach. Many of these procedures may be done in a variety of combinations.Type: ApplicationFiled: June 4, 2007Publication date: October 25, 2007Applicant: SATIETY, INC.Inventors: MARK DEEM, DOUGLAS SUTTON, HANSON GIFFORD, BERNARD ANDREAS, RONALD FRENCH
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Publication number: 20070249892Abstract: Devices and methods for augmenting or otherwise enhancing closure of body lumens comprise magnetic or magnetizable components or particles which are implanted in the wall of the lumen. The magnet fields exerted by the components or particles act to close the body lumen with a desired force.Type: ApplicationFiled: June 21, 2007Publication date: October 25, 2007Inventors: Mark Deem, Hanson Gifford, Bernard Andreas, Sunmi Chew, Ron French, Doug Sutton
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Publication number: 20070219570Abstract: Various obesity treatment tools and methods are described herein, as well as treatments for other gastric-related diseases, e.g., GERD. Treatment includes reducing the size of the stomach pouch to limit the caloric intake as well as to provide an earlier feeling of satiety. This may be done by creating a smaller gastric pouch within the stomach directly from the interior of the stomach itself. The smaller pouches may be made through the use of individual anchoring devices, rotating probes, or volume reduction devices. A pyloroplasty procedure may also be performed to render the pyloric sphincter incompetent. A gastric bypass procedure may additionally be performed using atraumatic magnetic anastomoses devices so that sugars and fats are passed directly to the bowel while bypassing the stomach. Many of these procedures may be done in a variety of combinations.Type: ApplicationFiled: May 10, 2007Publication date: September 20, 2007Inventors: Mark Deem, Douglas Sutton, Hanson Gifford, Bernard Andreas, Ronald French
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Publication number: 20070219612Abstract: A luminal prosthesis comprises a plurality of radially expandable prosthetic stent segments arranged axially. Two or more of the prosthetic stent segments are separable upon expansion from the remaining prosthetic stent segments and a coupling structure connects at least some of the adjacent prosthetic stent segments to each other. The coupling structure permits a first group of the adjacent prosthetic stent segments to separate from a second group of the prosthetic stent segments upon differential radial expansion of the first group relative to the second group and the coupling structure maintains or forms an attachment between the adjacent prosthetic stent segments in the first group which have been expanded together. A delivery system and methods for deploying the multiple coupled prosthetic stent segments are also disclosed.Type: ApplicationFiled: March 19, 2007Publication date: September 20, 2007Applicant: XTENT, INC.Inventors: Bernard Andreas, Sunmi Chew, Jeremy Dittmer, Jeff Grainger, Stephen Kao, David Lowe, Bryan Mao, Steve Olson, David Snow, Craig Welk
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Patent number: 7270668Abstract: Methods and apparatus for delivering prostheses to body lumens, such as stents and grafts to blood vessels, utilize a delivery device which carries one or more linearized elements. The linearized elements assume non-linear configurations, particularly helical configurations, when advanced and released from the delivery device. By selectively controlling the length and/or number of elements delivered from the delivery device, extended and disseminated disease within the body lumens may be effectively treated.Type: GrantFiled: November 27, 2002Date of Patent: September 18, 2007Assignee: Xtent, Inc.Inventors: Bernard Andreas, Ron French, Allan Will
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Publication number: 20070213748Abstract: Various obesity treatment tools and methods are described herein, as well as treatments for other gastric-related diseases, e.g., GERD. Treatment includes reducing the size of the stomach pouch to limit the caloric intake as well as to provide an earlier feeling of satiety. This may be done by creating a smaller gastric pouch within the stomach directly from the interior of the stomach itself. The smaller pouches may be made through the use of individual anchoring devices, rotating probes, or volume reduction devices. A pyloroplasty procedure may also be performed to render the pyloric sphincter incompetent. A gastric bypass procedure may additionally be performed using atraumatic magnetic anastomoses devices so that sugars and fats are passed directly to the bowel while bypassing the stomach. Many of these procedures may be done in a variety of combinations.Type: ApplicationFiled: May 10, 2007Publication date: September 13, 2007Inventors: Mark Deem, Douglas Sutton, Hanson Gifford, Bernard Andreas, Ronald French
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Publication number: 20070167963Abstract: Various obesity treatment tools and methods are described herein, as well as treatments for other gastric-related diseases, e.g., GERD. Treatment includes reducing the size of the stomach pouch to limit the caloric intake as well as to provide an earlier feeling of satiety. This may be done by creating a smaller gastric pouch within the stomach directly from the interior of the stomach itself. The smaller pouches may be made through the use of individual anchoring devices, rotating probes, or volume reduction devices. A pyloroplasty procedure may also be performed to render the pyloric sphincter incompetent. A gastric bypass procedure may additionally be performed using atraumatic magnetic anastomoses devices so that sugars and fats are passed directly to the bowel while bypassing the stomach. Many of these procedures may be done in a variety of combinations. Treatment may create enforced behavioral modifications by discouraging the ingestion of high-caloric foods.Type: ApplicationFiled: March 12, 2007Publication date: July 19, 2007Inventors: Mark Deem, Douglas Sutton, Hanson Gifford, Bernard Andreas, Ronald French
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Patent number: 7241308Abstract: A stent deployment system includes a catheter shaft, an expandable member mounted to the catheter shaft, and one or more stents or stent segments slidably positioned on the expandable member. The stent deployment system is adapted for deployment of stents or stent segments in very long lesions and in tapered and curved vessels. The stent deployment system facilitates slidable movement of a stent in a distal direction relative to the expandable member while inhibiting slidable movement in a proximal direction relative to the expandable member.Type: GrantFiled: June 9, 2003Date of Patent: July 10, 2007Assignee: Xtent, Inc.Inventors: Bernard Andreas, David W. Snow, Jeffry J. Grainger
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Publication number: 20070156225Abstract: Methods and apparatus for delivering prosthetic segments to a body lumen, utilize a delivery device having an elongated flexible member including proximal and distal ends, a plurality of prosthetic segments arranged near the distal end and axially along the elongated flexible member and an outer sheath slidably disposed over at least a portion of the prosthetic segments. The delivery device also includes a control mechanism coupled with the outer sheath and the elongated flexible member, wherein the control mechanism is adapted to retract the sheath a fixed distance, the fixed distance selectable by an operator to expose a selected number of prosthetic segments and create a spacing between a proximal prosthetic segment in the selected number and a distal prosthetic segment remaining with the elongated flexible member.Type: ApplicationFiled: December 21, 2006Publication date: July 5, 2007Applicant: Xtent, Inc.Inventors: Robert George, Bernard Andreas
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Publication number: 20070156226Abstract: Blood vessels and other body lumens are stented using multiple, discreet stent structures. Stent structures may be balloon expandable or self-expanding and are delivered by a delivery catheter which is repositioned to spaced-apart delivery sights. By coating the stents with particular biologically active substances, hyperplasia within and between the implanted stents can be inhibited. An exemplary delivery catheter comprises a catheter body having both a pusher rod for advancing the stents relative to a sheath and a reciprocatable delivery catheter for implanting the stents.Type: ApplicationFiled: March 13, 2007Publication date: July 5, 2007Applicant: XTENT, INC.Inventors: SUNMI CHEW, Bernard Andreas, Hanson Gifford, Ron French, Mark Deem, Allan Will
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Publication number: 20070129597Abstract: Devices and methods for augmenting or otherwise enhancing closure of body lumens comprise magnetic or magnetizable components or particles which are implanted in the wall of the lumen. The magnet fields exerted by the components or particles act to close the body lumen with a desired force.Type: ApplicationFiled: November 16, 2006Publication date: June 7, 2007Applicant: The Foundry Inc.Inventors: Mark Deem, Hanson Gifford, Bernard Andreas, Sunmi Chew, Ron French, Doug Sutton
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Publication number: 20070129733Abstract: Apparatus for delivering stents to body lumens include one or more tubular prostheses carried at the distal end of a catheter shaft, a sheath slidably disposed over the prostheses, and a guidewire tube extending from within the sheath to the exterior of the sheath through an exit port in a sidewall thereof. A guidewire extends slidably through the guidewire tube. The sheath can be moved relative to the catheter shaft and the guidewire tube to expose the prostheses for deployment. Methods of delivering stents are also provided.Type: ApplicationFiled: November 16, 2006Publication date: June 7, 2007Applicant: Xtent, Inc.Inventors: ALLAN WILL, Bernard Andreas, Sunmi Chew
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Publication number: 20070118158Abstract: Various obesity treatment tools and methods are described herein, as well as treatments for other gastric-related diseases, e.g., GERD. Treatment includes reducing the size of the stomach pouch to limit the caloric intake as well as to provide an earlier feeling of satiety. This may be done by creating a smaller gastric pouch within the stomach directly from the interior of the stomach itself. The smaller pouches may be made through the use of individual anchoring devices, rotating probes, or volume reduction devices. A pyloroplasty procedure may also be performed to render the pyloric sphincter incompetent. A gastric bypass procedure may additionally be performed using atraumatic magnetic anastomoses devices so that sugars and fats are passed directly to the bowel while bypassing the stomach. Many of these procedures may be done in a variety of combinations. Treatment may create enforced behavioral modifications by discouraging the ingestion of high-caloric foods.Type: ApplicationFiled: January 18, 2007Publication date: May 24, 2007Inventors: Mark Deem, Douglas Sutton, Hanson Gifford, Bernard Andreas, Ronald French
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Publication number: 20070118159Abstract: Various obesity treatment tools and methods are described herein, as well as treatments for other gastric-related diseases, e.g., GERD. Treatment includes reducing the size of the stomach pouch to limit the caloric intake as well as to provide an earlier feeling of satiety. This may be done by creating a smaller gastric pouch within the stomach directly from the interior of the stomach itself. The smaller pouches may be made through the use of individual anchoring devices, rotating probes, or volume reduction devices. A pyloroplasty procedure may also be performed to render the pyloric sphincter incompetent. A gastric bypass procedure may additionally be performed using atraumatic magnetic anastomoses devices so that sugars and fats are passed directly to the bowel while bypassing the stomach. Many of these procedures may be done in a variety of combinations. Treatment may create enforced behavioral modifications by discouraging the ingestion of high-caloric foods.Type: ApplicationFiled: January 18, 2007Publication date: May 24, 2007Inventors: Mark Deem, Douglas Sutton, Hanson Gifford, Bernard Andreas, Ronald French
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Publication number: 20070106365Abstract: A stent deployment system includes a catheter shaft, an expandable member mounted to the catheter shaft, and one or more stents or stent segments slidably positioned on the expandable member. The stent deployment system is adapted for deployment of stents or stent segments in very long lesions and in tapered and curved vessels. The stent deployment system facilitates slidable movement of a stent in a distal direction relative to the expandable member while inhibiting slidable movement in a proximal direction relative to the expandable member.Type: ApplicationFiled: October 5, 2006Publication date: May 10, 2007Applicant: XTENT, INC.Inventors: Bernard Andreas, David Snow, Jeffry Grainger
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Publication number: 20070100424Abstract: Blood vessels and other body lumens are stented using multiple, discreet stent structures. Stent structures may be balloon expandable or self-expanding and are delivered by a delivery catheter which is repositioned to spaced-apart delivery sights. By coating the stents with particular biologically active substances, hyperplasia within and between the implanted stents can be inhibited. An exemplary delivery catheter comprises a catheter body having both a pusher rod for advancing the stents relative to a sheath and a reciprocatable delivery catheter for implanting the stents.Type: ApplicationFiled: November 28, 2006Publication date: May 3, 2007Applicant: Xtent, Inc.Inventors: Sunmi Chew, Bernard Andreas, Hanson Gifford, Ron French, Mark Deem, Allan Will