Patents by Inventor John Cvinar
John Cvinar 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: 9089437Abstract: The invention provides a fusion device for use in spinal fusion procedures. The invention also provides systems and methods that include filling the fusion device with a cement composition.Type: GrantFiled: October 16, 2007Date of Patent: July 28, 2015Assignee: PIONEER SURGICAL TECHNOLOGY, INC.Inventors: Edward S. Ahn, John Cvinar
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Patent number: 8828033Abstract: A system for performing vascular surgery includes a first retractor blade and a second retractor blade and a fulcrum device. The first retractor blade includes a first grasping bar, and the second retractor blade comprises a second grasping bar. The first retractor blade and the second retractor blade are adapted to engage opposing edges of a subcostal incision in a patient. The fulcrum device includes a first fulcrum slot and a second fulcrum slot formed through opposing edges of the fulcrum device. The first fulcrum slot is adapted to receive the first grasping bar and the second fulcrum slot is adapted to receive the second grasping bar, such that the fulcrum device is adapted to apply leverage from the first retractor blade and the second retractor blade to spread the edges of the incision and to allow access to a chest cavity of the patient.Type: GrantFiled: April 18, 2011Date of Patent: September 9, 2014Inventors: J. Donald Hill, Geoffrey Briggs, Michael Sims, John Cvinar, Andy H. Levine, Eric May, John Meade
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Publication number: 20120065475Abstract: A system for performing vascular surgery includes a first retractor blade and a second retractor blade and a fulcrum device. The first retractor blade includes a first grasping bar, and the second retractor blade comprises a second grasping bar. The first retractor blade and the second retractor blade are adapted to engage opposing edges of a subcostal incision in a patient. The fulcrum device includes a first fulcrum slot and a second fulcrum slot formed through opposing edges of the fulcrum device. The first fulcrum slot is adapted to receive the first grasping bar and the second fulcrum slot is adapted to receive the second grasping bar, such that the fulcrum device is adapted to apply leverage from the first retractor blade and the second retractor blade to spread the edges of the incision and to allow access to a chest cavity of the patient.Type: ApplicationFiled: April 18, 2011Publication date: March 15, 2012Inventors: J. Donald Hill, Geoffrey Briggs, Michael Sims, John Cvinar, Andy H. Levine, Eric May, John Meade
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Patent number: 7935073Abstract: Method and apparatus for limiting absorption of food products in specific parts of the digestive system is presented. A gastrointestinal implant device is anchored in the stomach and extends beyond the ligament of Treitz. All food exiting the stomach is funneled through the device. The gastrointestinal device includes an anchor for anchoring the device to the stomach and a flexible sleeve to limit absorption of nutrients in the duodenum. The anchor is collapsible for endoscopic delivery and removal.Type: GrantFiled: October 29, 2007Date of Patent: May 3, 2011Assignee: GI Dynamics, Inc.Inventors: Andy H. Levine, John Cvinar
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Patent number: 7927343Abstract: A system for performing vascular surgery includes a first retractor blade and a second retractor blade and a fulcrum device. The first retractor blade includes a first grasping bar, and the second retractor blade comprises a second grasping bar. The first retractor blade and the second retractor blade are adapted to engage opposing edges of a subcostal incision in a patient. The fulcrum device includes a first fulcrum slot and a second fulcrum slot formed through opposing edges of the fulcrum device. The first fulcrum slot is adapted to receive the first grasping bar and the second fulcrum slot is adapted to receive the second grasping bar, such that the fulcrum device is adapted to apply leverage from the first retractor blade and the second retractor blade to spread the edges of the incision and to allow access to a chest cavity of the patient.Type: GrantFiled: November 19, 2003Date of Patent: April 19, 2011Inventors: J. Donald Hill, Geoffrey Briggs, John Cvinar, Andy H. Levine, Eric May, John Meade, Michael Sims
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Publication number: 20110004307Abstract: The spinal fusion device (100) of the invention is implanted within an intervertebral space between adjacent upper and lower vertebrae and secured to the vertebrae with cement. The fusion device includes upper and lower endplate facing surfaces (150, 160) each having at least one opening (120) for delivering cement material to adjacent contact surfaces of the vertebrae above and below the implant. Utilizing quick-setting cement compositions with the device <:an allow for almost immediate fusion of the vertebrae, thus, reducing or eliminating the need for adjuvant fixation devices such as screws, plates, and/or rods, while also simultaneously providing precise delivery of cement to contact surfaces between the fusion device and vertebrae.Type: ApplicationFiled: October 16, 2007Publication date: January 6, 2011Inventors: Edward S. Ahn, John Cvinar
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Publication number: 20080103604Abstract: Method and apparatus for limiting absorption of food products in specific parts of the digestive system is presented. A gastrointestinal implant device is anchored in the stomach and extends beyond the ligament of Treitz. All food exiting the stomach is funneled through the device. The gastrointestinal device includes an anchor for anchoring the device to the stomach and a flexible sleeve to limit absorption of nutrients in the duodenum. The anchor is collapsible for endoscopic delivery and removal.Type: ApplicationFiled: October 29, 2007Publication date: May 1, 2008Inventors: Andy Levine, John Cvinar
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Patent number: 7347875Abstract: Method and apparatus for limiting absorption of food products in specific parts of the digestive system is presented. A gastrointestinal implant device is anchored in the stomach and extends beyond the ligament of Treitz. All food exiting the stomach is funneled through the device. The gastrointestinal device includes an anchor for anchoring the device to the stomach and a flexible sleeve to limit absorption of nutrients in the duodenum. The anchor is collapsible for endoscopic delivery and removal.Type: GrantFiled: November 30, 2004Date of Patent: March 25, 2008Assignee: GI Dynamics, Inc.Inventors: Andy H. Levine, John Cvinar
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Patent number: 7267694Abstract: Method and apparatus for limiting absorption of food products in specific parts of the digestive system is presented. A gastrointestinal implant device is anchored in the stomach and extends beyond the ligament of Treitz. All food exiting the stomach is funneled through the device. The gastrointestinal device includes an anchor for anchoring the device to the stomach and a flexible sleeve to limit absorption of nutrients in the duodenum. The anchor is collapsible for endoscopic delivery and removal.Type: GrantFiled: November 30, 2004Date of Patent: September 11, 2007Assignee: GI Dynamics, Inc.Inventors: Andy H. Levine, John Cvinar, Dave Melanson, John C. Meade
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Publication number: 20060265082Abstract: A gastrointestinal implant device is anchored in the duodenum and extends beyond the ligament of Treitz. All food exiting the stomach is funneled through the device. The gastrointestinal device includes an anchor for attaching the device to the duodenum and an unsupported flexible sleeve. The anchor can include a stent and/or a wave anchor and is collapsible for catheter-based delivery and removal.Type: ApplicationFiled: July 26, 2006Publication date: November 23, 2006Inventors: John Meade, Andy Levine, David Melanson, John Cvinar
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Publication number: 20060161172Abstract: Methods of treatment using a gastrointestinal implant device removably anchored within an animal's gastrointestinal tract. For example, the implant device includes a collapsible anchor for anchoring the device coupled to a proximal end of a flexible sleeve. The implant device can be anchored within the stomach, within the pyloric orifice, and/or distal to the pylorus and extended into the duodenum. All partially-digested food, or chyme, exiting the stomach is funneled through the device. Methods of treatment include treating obesity by one or more of: limiting the absorption of nutrients within the duodenum; delaying the mixing of chyme with digestive enzymes; alter hormonal triggers; and providing negative feedback. Alternatively or in addition, the desired result includes treating a diseases, such as diabetes, or temporarily shielding a portion of the intestine to promote healing within the intestine.Type: ApplicationFiled: December 13, 2005Publication date: July 20, 2006Inventors: Andy Levine, John Cvinar, David Melanson, John Meade
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Publication number: 20060161265Abstract: Method and apparatus for limiting absorption of food products in specific parts of the digestive system is presented. A gastrointestinal implant device is anchored in the stomach and extends beyond the ligament of Treitz. All food exiting the stomach is funneled through the device. The gastrointestinal device includes an anchor for anchoring the device to the stomach and a flexible sleeve. When implanted within the intestine, the sleeve can limit the absorption of nutrients, delay the mixing of chyme with digestive enzymes, altering hormonal triggers, providing negative feedback, and combinations thereof. The anchor is collapsible for endoscopic delivery and removal.Type: ApplicationFiled: December 13, 2005Publication date: July 20, 2006Inventors: Andy Levine, John Cvinar, David Melanson, John Meade
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Publication number: 20060155312Abstract: Methods and apparatus for delivering an implant device within the digestive system of an animal are presented. An delivery device includes an outer sheath, or container, for storing a proximal portion of the implant device. The outer sheath is moveable relative to the stored portion of the implant device to release the proximal portion from within the outer sheath. The delivery device also includes an inner sheath defining a lumen therein that extends distal to the outer sheath, a moveable element adapted to secure the distal end of the implant to the inner sheath, and a release mechanism coupled to the moveable element for releasing the distal end of the implant. The device also includes a atraumatic tip, or ball, coupled at its distal end to facilitate guiding the delivery device through the gastrointestinal tract.Type: ApplicationFiled: December 13, 2005Publication date: July 13, 2006Inventors: Andy Levine, John Cvinar, David Melanson, John Meade
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Patent number: 7025791Abstract: Method and apparatus for limiting absorption of food products in specific parts of the digestive system is presented. A gastrointestinal implant device is anchored in the stomach and extends beyond the ligament of Treitz. All food exiting the stomach is funneled through the device. The gastrointestinal device includes an anchor for anchoring the device to the stomach and a flexible sleeve to limit absorption of nutrients in the duodenum. The anchor is collapsible for endoscopic delivery and removal.Type: GrantFiled: January 9, 2003Date of Patent: April 11, 2006Assignee: GI Dynamics, Inc.Inventors: Andy H. Levine, John Cvinar, Dave Melanson, John Meade
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Publication number: 20050125075Abstract: Method and apparatus for limiting absorption of food products in specific parts of the digestive system is presented. A gastrointestinal implant device is anchored in the duodenum and extends beyond the ligament of Treitz. All food exiting the stomach is funneled through the device. The gastrointestinal device includes an anchor for attaching the device to the duodenum and an unsupported flexible sleeve to limit absorption of nutrients in the duodenum. The anchor can include a stent and/or a wave anchor and is collapsible for catheter-based delivery and removal.Type: ApplicationFiled: June 1, 2004Publication date: June 9, 2005Applicant: GI Dynamics, Inc.Inventors: John Meade, Andy Levine, David Melanson, John Cvinar
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Publication number: 20050125020Abstract: The present invention relates to an anchor configured for minimally-invasive implantation and sized to remain securely positioned within at least a portion of the gastrointestinal tract of an animal. The anchor includes a radial spring formed from an elongated resilient member shaped into an annular wave pattern about a central axis. The anchor defines a central lumen and provides an outward radial force, while allowing for substantial flexure about its perimeter. The anchor is generally removable, but can include fasteners, such as barbs, to further secure it to the surrounding anatomy. In some embodiments, the anchor includes a connector coupling a fixed portion to a removable portion. Further, the anchor can be used to secure a medical device within the body, such as a flexible sleeve within the intestine.Type: ApplicationFiled: June 1, 2004Publication date: June 9, 2005Applicant: GI Dynamics, Inc.Inventors: John Meade, Andy Levine, David Melanson, John Cvinar
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Publication number: 20050080395Abstract: Method and apparatus for limiting absorption of food products in specific parts of the digestive system is presented. A gastrointestinal implant device is anchored in the stomach and extends beyond the ligament of Treitz. All food exiting the stomach is funneled through the device. The gastrointestinal device includes an anchor for anchoring the device to the stomach and a flexible sleeve to limit absorption of nutrients in the duodenum. The anchor is collapsible for endoscopic delivery and removal.Type: ApplicationFiled: November 30, 2004Publication date: April 14, 2005Applicant: GI Dynamics, Inc.Inventors: Andy Levine, John Cvinar
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Publication number: 20050075622Abstract: Method and apparatus for limiting absorption of food products in specific parts of the digestive system is presented. A gastrointestinal implant device is anchored in the stomach and extends beyond the ligament of Treitz. All food exiting the stomach is funneled through the device. The gastrointestinal device includes an anchor for anchoring the device to the stomach and a flexible sleeve to limit absorption of nutrients in the duodenum. The anchor is collapsible for endoscopic delivery and removal.Type: ApplicationFiled: November 30, 2004Publication date: April 7, 2005Applicant: GI Dynamics, Inc.Inventors: Andy Levine, John Cvinar, Dave Melanson, John Meade
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Publication number: 20040242968Abstract: A system for performing vascular surgery includes a first retractor blade and a second retractor blade and a fulcrum device. The first retractor blade includes a first grasping bar, and the second retractor blade comprises a second grasping bar. The first retractor blade and the second retractor blade are adapted to engage opposing edges of a subcostal incision in a patient. The fulcrum device includes a first fulcrum slot and a second fulcrum slot formed through opposing edges of the fulcrum device. The first fulcrum slot is adapted to receive the first grasping bar and the second fulcrum slot is adapted to receive the second grasping bar, such that the fulcrum device is adapted to apply leverage from the first retractor blade and the second retractor blade to spread the edges of the incision and to allow access to a chest cavity of the patient.Type: ApplicationFiled: November 19, 2003Publication date: December 2, 2004Inventors: J. Donald Hill, Geoffrey Briggs, Michael Sims, John Cvinar, Andy H. Levine, Eric May, John Meade
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Publication number: 20040107004Abstract: Method and apparatus for limiting absorption of food products in specific parts of the digestive system is presented. A gastrointestinal implant device is anchored in the stomach and extends beyond the ligament of Treitz. All food exiting the stomach is funneled through the device. The gastrointestinal device includes an anchor for anchoring the device to the stomach and a flexible sleeve to limit absorption of nutrients in the duodenum. The anchor is collapsible for endoscopic delivery and removal.Type: ApplicationFiled: January 9, 2003Publication date: June 3, 2004Applicant: Seedling Enterprises, LLCInventors: Andy H. Levine, John Cvinar, Dave Melanson, John Meade