Patents by Inventor Manuel A. Villafana
Manuel A. Villafana 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: 8353814Abstract: A method for securing a compliant scaffold to an outer surface of a vascular graft includes positioning the scaffold radially about an elongated support tube which includes first and second radially outwardly flared end portions respectively defining first and second open ends of the support tube. The method further includes pulling the vascular graft through a lumen of the support tube, and axially deploying the scaffold over the first end portion of the support tube and into compliant contact with the outer surface of the vascular graft.Type: GrantFiled: October 9, 2008Date of Patent: January 15, 2013Assignee: Kips Bay Medical, Inc.Inventors: Manuel A. Villafana, Eric E. Solien, Michael P. Winegar, Michael J. Urick
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Publication number: 20100160718Abstract: A method for securing a compliant scaffold to an outer surface of a vascular graft includes positioning the scaffold radially about an elongated support tube which includes first and second radially outwardly flared end portions respectively defining first and second open ends of the support tube. The method further includes pulling the vascular graft through a lumen of the support tube, and axially deploying the scaffold over the first end portion of the support tube and into compliant contact with the outer surface of the vascular graft.Type: ApplicationFiled: October 9, 2008Publication date: June 24, 2010Inventors: Manuel A. Villafana, Eric E. Solien, Michael P. Winegar, Michael J. Urick
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Publication number: 20060093647Abstract: A multiple layer coating for application upon surfaces of an implantable medical device, a first layer of such coating includes an anti-thrombogenic factor and a second layer of such coating includes a hyperplasia inhibiting factor that is releasably contained therein. The hyperplasia inhibiting factor is controllably released from the multiple layer coating over a predetermined period of time upon implantation of the medical device in vivo.Type: ApplicationFiled: October 29, 2004Publication date: May 4, 2006Inventors: Manuel Villafana, John Babitt, Jacquie Campbell, Alex Peterson
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Patent number: 7011643Abstract: A grafted network including one or more graft segments for use in coronary bypass procedures and which are configured to operably transport bypass blood flow from a singular supply location to one or more delivery locations in the grafted network is provided in combination with one or more multiple channel blood flow connectors for directing such bypass blood flow in the grafted network to one or more vascular members requiring restorative blood flow thereto. The grafted network also preferably includes one or more devices for operably maintaining the grafted network under relatively high internal fluid pressure so as to continuously supply selective vascular members with adequate bypass blood flow.Type: GrantFiled: August 5, 2003Date of Patent: March 14, 2006Assignee: CABG Medical, Inc.Inventors: Manuel A. Villafana, William E. Palmquist, Bruce Fletcher
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Patent number: 6991615Abstract: A grafted network including one or more graft segments for use in coronary bypass procedures and which are configured to operably transport bypass blood flow from a singular supply location to one or more delivery locations, and which is provided in combination with one or more multiple channel blood flow connectors for directing such bypass blood flow in the grafted network to one or more vascular members requiring restorative blood flow thereto. The grafted network also preferably includes one or more devices for operably maintaining the grafted network under relatively high internal fluid pressure so as to continuously supply selective vascular members with adequate bypass blood flow.Type: GrantFiled: August 2, 2004Date of Patent: January 31, 2006Assignee: CABG Medical, Inc.Inventors: Manuel A. Villafana, William E. Palmquist, Bruce Fletcher
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Patent number: 6986751Abstract: A grafted network including one or more graft segments for use in coronary bypass procedures and which are configured to operably transport bypass blood flow from a singular supply location to one or more delivery locations in the grafted network is provided in combination with one or more multiple channel blood flow connectors for directing such bypass blood flow in the grafted network to one or more vascular members requiring restorative blood flow thereto. The grafted network also preferably includes one or more devices for operably maintaining the grafted network under relatively high internal fluid pressure so as to continuously supply selective vascular members with adequate bypass blood flow.Type: GrantFiled: October 31, 2003Date of Patent: January 17, 2006Assignee: CABG Medical, Inc.Inventors: Manuel A. Villafana, William E. Palmquist, Bruce Fletcher
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Publication number: 20050033217Abstract: A grafted network including one or more graft segments for use in coronary bypass procedures and which are configured to operably transport bypass blood flow from a singular supply location to one or more delivery locations in the grafted network is provided in combination with one or more multiple channel blood flow connectors for directing such bypass blood flow in the grafted network to one or more vascular members requiring restorative blood flow thereto. The grafted network also preferably includes one or more devices for operably maintaining the grafted network under relatively high internal fluid pressure so as to continuously supply selective vascular members with adequate bypass blood flow.Type: ApplicationFiled: August 5, 2003Publication date: February 10, 2005Inventors: Manuel Villafana, William Palmquist, Bruce Fletcher
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Publication number: 20050033218Abstract: A grafted network including one or more graft segments for use in coronary bypass procedures and which are configured to operably transport bypass blood flow from a singular supply location to one or more delivery locations in the grafted network is provided in combination with one or more multiple channel blood flow connectors for directing such bypass blood flow in the grafted network to one or more vascular members requiring restorative blood flow thereto. The grafted network also preferably includes one or more devices for operably maintaining the grafted network under relatively high internal fluid pressure so as to continuously supply selective vascular members with adequate bypass blood flow.Type: ApplicationFiled: October 31, 2003Publication date: February 10, 2005Inventors: Manuel Villafana, William Palmquist, Bruce Fletcher
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Publication number: 20050033219Abstract: A grafted network including one or more graft segments for use in coronary bypass procedures and which are configured to operably transport bypass blood flow from a singular supply location to one or more delivery locations, and which is provided in combination with one or more multiple channel blood flow connectors for directing such bypass blood flow in the grafted network to one or more vascular members requiring restorative blood flow thereto. The grafted network also preferably includes one or more devices for operably maintaining the grafted network under relatively high internal fluid pressure so as to continuously supply selective vascular members with adequate bypass blood flow.Type: ApplicationFiled: August 2, 2004Publication date: February 10, 2005Inventors: Manuel Villafana, William Palmquist, Bruce Fletcher
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Patent number: 6241764Abstract: Improved stented grafts for coupling vascular members, and for use in surgical implantation during coronary bypass operations. The stented graft of the present invention comprises a plurality of graft link segments, each having a lumen for accommodating blood flow, and with at least one graft link segment being secured to one end of a vascular stent forming a junction between a supply lumen and a delivery lumen. The delivery lumen is arranged to be inserted into the patient's vascular system downstream from blockage in the coronary artery. In order to provide ease of access for the attachment of a second graft link segment to the stent assembly, the individual tubular element or elements defining the dual lumen assembly are axially offset, one from the other, in order to expose the free end of the stent for receiving a second graft link segment.Type: GrantFiled: January 26, 2000Date of Patent: June 5, 2001Assignee: CABG Medical, Inc.Inventor: Manuel A. Villafana
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Patent number: 6241761Abstract: Improved stented grafts for coupling vascular members, and for use in surgical implantation during coronary bypass operations. The stented graft of the present invention comprises a plurality of graft link segments, each having a lumen for accommodating blood flow, and with at least one graft link segment being secured to one end of a vascular stent forming a junction between a supply lumen and a delivery lumen. The delivery lumen is arranged to be inserted into the patient's vascular system downstream from blockage in the coronary artery. In order to provide ease of access for the attachment of a second graft link segment to the stent assembly, the individual tubular element or elements defining the dual lumen assembly are axially offset, one from the other, in order to expose the free end of the stent for receiving a second graft link segment.Type: GrantFiled: March 14, 2000Date of Patent: June 5, 2001Assignee: CABG Medical, Inc.Inventor: Manuel A. Villafana
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Patent number: 5487760Abstract: A heart valve prosthesis containing electronic circuitry for monitoring valve performance provides information to an implanted transceiver arranged to transmit digital or analog data transcutaneously to an external transceiver. The implanted electronics may be integrally contained within the heart valve prosthesis, or alternatively, may be separately housed in a moisture-proof container within the patient's body but external to the heart. By coupling the implanted transceiver to a pulse generator and electrode combination, electrical stimulating pulses can be applied to the heart upon command from an externally located monitor/transceiver combination.Type: GrantFiled: March 8, 1994Date of Patent: January 30, 1996Assignee: ATS Medical, Inc.Inventor: Manuel A. Villafana
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Patent number: 5354330Abstract: An improved heart valve prosthesis arranged for permanent implantation to replace a defective natural heart valve, wherein the improved prosthesis device includes an annular body or ring designed to retain a pair of rotatable flat plate occluders. The structure of the present invention contains modifications which improve the flow dynamics therethrough, and reduce if not eliminate the formation of eddies or areas of stasis in and along the flow pattern. The annular ring is provided with oppositely disposed pairs of spherical segments which form pivot areas for the occluders, with the occluders being provided with concavities engageable with the spherical segments. Stops are provided for controlling the degree of arcuate travel or rotational skirt of motion. The abutment surfaces are arranged at positions spaced from the axis of rotation so as to improve the distribution of stresses created during closure.Type: GrantFiled: September 16, 1993Date of Patent: October 11, 1994Assignee: ATS Medical Inc.Inventors: Donald W. Hanson, Richard W. Kramp, Manuel A. Villafana