William D Peters

US Patent:

6401720, Jun 11, 2002

Filed:

Oct 4, 1999

Appl. No.:

09/411095

Inventors:

John H. Stevens - Palo Alto CA 94303
Bruce A. Reitz - Stanford CA 94305
Alex T. Roth - Redwood City CA 94061
William S. Peters - Woodside CA 94062
Hanson S. Gifford - Woodside CA 94062

International Classification:

A61B 1900

US Classification:

128898

Abstract:

Devices, systems, and methods are provided for accessing the interior of the heart and performing procedures therein while the heart is beating. In one embodiment, a tubular access device having an inner lumen is provided for positioning through a penetration in a muscular wall of the heart, the access device having a means for sealing within the penetration to inhibit leakage of blood through the penetration. The sealing means may comprise a balloon or flange on the access device, or a suture placed in the heart wall to gather the heart tissue against the access device. An obturator is removably positionable in the inner lumen of the access device, the obturator having a cutting means at its distal end for penetrating the muscular wall of the heart. The access device is preferably positioned through an intercostal space and through the muscular wall of the heart. Elongated instruments may be introduced through the tubular access device into an interior chamber of the heart to perform procedures such as septal defect repair and electrophysiological mapping and ablation.

US Patent:

6478029, Nov 12, 2002

Filed:

Aug 5, 2000

Appl. No.:

09/634608

Inventors:

Stephen W. Boyd - Redwood City CA
Alan R. Rapacki - San Francisco CA
Matthias Vaska - Palo Alto CA
Brian S. Donlon - Los Altos Hills CA
William S. Peters - Woodside CA

Assignee:

Hearport, Inc. - Redwood City IA

International Classification:

A61B 1900

US Classification:

128898, 600201

Abstract:

Surgical methods and instruments are disclosed for performing port-access or closed-chest coronary artery bypass (CABG) surgery in multivessel coronary artery disease. In contrast to standard open-chest CABG surgery, which requires a median sternotomy or other gross thoracotomy to expose the patients heart, post-access CABG surgery is performed through small incisions or access ports made through the intercostal spaces between the patients ribs, resulting in greatly reduced pain and morbidity to the patient. In situ arterial bypass grafts, such as the internal mammary arteries and/or the right gastroepiploic artery, are prepared for grafting by thoracoscopic or laparoscopic takedown techniques. Free grafts, such as a saphenous vein graft or a free arterial graft, can be used to augment the in situ arterial grafts. The graft vessels are anastomosed to the coronary arteries under direct visualization through a cardioscopic microscope inserted through an intercostal access port.

US Patent:

6494211, Dec 17, 2002

Filed:

Jan 19, 2000

Appl. No.:

09/487024

Inventors:

Stephen W. Boyd - Redwood City CA
Alan R. Rapacki - San Francisco CA
Matthias Vaska - Palo Alto CA
Brian S. Donlon - Los Altos Hills CA
William S. Peters - Woodside CA

Assignee:

Hearport, Inc. - Redwood City CA

International Classification:

A61B 1900

US Classification:

128898

Abstract:

Surgical methods and instruments are disclosed for performing port-access or closed-chest coronary artery bypass (CABG) surgery in multivessel coronary artery disease. In contrast to standard open-chest CABG surgery, which requires a median stemotomy or other gross thoracotomy to expose the patients heart, port-access CABG surgery is performed through small incisions or access ports made through the intercostal spaces between the patients ribs, resulting in greatly reduced pain and morbidity to the patient. In situ arterial bypass grafts, such as the internal mammary arteries and/or the right gastroepiploic artery, are prepared for grafting by thoracoscopic or laparoscopic takedown techniques. Free grafts, such as a saphenous vein graft or a free arterial graft, can be used to augment the in situ arterial grafts. The graft vessels are anastomosed to the coronary arteries under direct visualization through a cardioscopic microscope inserted through an intercostal access port.

US Patent:

6613069, Sep 2, 2003

Filed:

Oct 19, 2001

Appl. No.:

09/982504

Inventors:

Stephen W. Boyd - Redwood City CA
Alan R. Rapacki - San Francisco CA
Matthias Vaska - Palo Alto CA
Brian S. Donlon - Los Altos Hills CA
William S. Peters - Woodside CA
John H. Stevens - London, GB

Assignee:

Heartport, Inc. - Redwood City CA

International Classification:

A61B 1744

US Classification:

606205

Abstract:

Surgical methods and instruments are disclosed for performing port-access or closed-chest coronary artery bypass (CABG) surgery in multivessel coronary artery disease. In contrast to standard open-chest CABG surgery, which requires a median sternotomy or other gross thoracotomy to expose the patients heart, port-access CABG surgery is performed through small incisions or access ports made through the intercostal spaces between the patients ribs, resulting in greatly reduced pain and morbidity to the patient. In situ arterial bypass grafts, such as the internal mammary arteries and/or the right gastroepiploic artery, are prepared for grafting by thoracoscopic or laparoscopic takedown techniques. Free grafts, such as a saphenous vein graft or a free arterial graft, can be used to augment the in situ arterial grafts. The graft vessels are anastomosed to the coronary arteries under direct visualization through a cardioscopic microscope inserted through an intercostal access port.

US Patent:

6679268, Jan 20, 2004

Filed:

Mar 15, 2002

Appl. No.:

10/098838

Inventors:

John H. Stevens - Palo Alto CA
Bruce A. Reitz - Stanford CA
Alex T. Roth - Redwood City CA
William S. Peters - Woodside CA
Hanson S. Gifford - Woodside CA

Assignee:

Heartport, Inc. - Redwood City CA

International Classification:

A61B 1900

US Classification:

128898

Abstract:

Devices, systems, and methods are provided for accessing the interior of the heart and performing procedures therein while the heart is beating. In one embodiment, a tubular access device having an inner lumen is provided for positioning through a penetration in a muscular wall of the heart, the access device having a means for sealing within the penetration to inhibit leakage of blood through the penetration. The sealing means may comprise a balloon or flange on the access device, or a suture placed in the heart wall to gather the heart tissue against the access device. An obturator is removably positionable in the inner lumen of the access device, the obturator having a cutting means at its distal end for penetrating the muscular wall of the heart. The access device is preferably positioned through an intercostal space and through the muscular wall of the heart. Elongated instruments may be introduced through the tubular access device into an interior chamber of the heart to perform procedures such as septal defect repair and electrophysiological mapping and ablation.

US Patent:

6899704, May 31, 2005

Filed:

Jul 10, 2001

Appl. No.:

09/902523

Inventors:

Wesley D. Sterman - San Francisco CA, US
Michi E. Garrison - Belmont CA, US
John H. Stevens - Palo Alto CA, US
William S. Peters - Woodside CA, US

Assignee:

Heartport, Inc. - Redwood City CA

International Classification:

A61B017/00
A61B018/18
A61B037/00

US Classification:

606 1, 606 10, 604 401, 607 1

Abstract:

The invention provides devices and methods for performing less-invasive surgical procedures within an organ or vessel. In an exemplary embodiment, the invention provides a method of closed-chest surgical intervention within an internal cavity of a patient's heart or great vessel. According to the method, the patient's heart is arrested and cardiopulmonary bypass is established. A scope extending through a percutaneous intercostal penetration in the patient's chest is used to view an internal portion of the patient's chest. An internal penetration is formed in a wall of the heart or great vessel using cutting means introduced through a percutaneous penetration in an intercostal space in the patient's chest. An interventional tool is then introduced, usually through a cannula positioned in a percutaneous intercostal penetration. The interventional tool is inserted through the internal penetration in the heart or great vessel to perform a surgical procedure within the internal cavity under visualization by means of the scope.

US Patent:

6913600, Jul 5, 2005

Filed:

Sep 25, 1998

Appl. No.:

09/161109

Inventors:

Kirsten L. Valley - Mountain View CA, US
David W. Snow - Woodside CA, US
Timothy C. Corvi - Belmont CA, US
Brian S. Donlon - Los Altos Hills CA, US
Stephen W. Boyd - Redwood City CA, US
Sylvia W. Fan - San Francisco CA, US
Alex T. Roth - Redwood City CA, US
William S. Peters - Woodside CA, US

Assignee:

Heartport, Inc. - Redwood City CA

International Classification:

A61M031/00
A61M029/00

US Classification:

604509, 604 9601, 60410001, 604108, 604109, 606194

Abstract:

Devices and methods are provided for temporarily inducing cardioplegic arrest in the heart of a patient and for establishing cardiopulmonary bypass in order to facilitate surgical procedures on the heart and its related blood vessels. Specifically, a catheter based system is provided for isolating the heart and coronary blood vessels of a patient from the remainder of the arterial system and for infusing a cardioplegic agent into the patient's coronary arteries to induce cardioplegic arrest in the heart. The system includes an endoaortic partitioning catheter having an expandable balloon at its distal end which is expanded within the ascending aorta to occlude the aortic lumen between the coronary ostia and the brachiocephalic artery. Means for centering the catheter tip within the ascending aorta include specially curved shaft configurations, eccentric or shaped occlusion balloons and a steerable catheter tip, which may be used separately or in combination. The shaft of the catheter may have a coaxial or multilumen construction.

US Patent:

6913601, Jul 5, 2005

Filed:

May 22, 2001

Appl. No.:

09/863135

Inventors:

Frederick G. St. Goar - Menlo Park CA, US
William S. Peters - Woodside CA, US
Philip C. Evard - Palo Alto CA, US
Stephen W. Boyd - Menlo Park CA, US
Craig L. Adams - San Ramon CA, US
John H. Stevens - Palo Alto CA, US

Assignee:

Heartport, Inc. - Redwood City CA

International Classification:

A61M031/00

US Classification:

604509, 604 9601, 604523, 604113, 604 401, 128898

Abstract:

A catheter system is provided for accessing the coronary ostia transluminally from a peripheral arterial access site, such as the femoral artery, and for inducing cardioplegic arrest by direct infusion of cardioplegic solution into the coronary arteries. In a first embodiment, the catheter system is in the form of a single perfusion catheter with multiple distal branches for engaging the coronary ostia. In a second embodiment, multiple perfusion catheters are delivered to the coronary ostia through a single arterial cannula. In a third embodiment, multiple perfusion catheters are delivered to the coronary ostia through a single guiding catheter. In a fourth embodiment, multiple catheters are delivered to the coronary ostia through a single guiding catheter which has distal exit ports that are arranged to direct the perfusion catheters into the coronary ostia. In each embodiment, the catheters are equipped with an occlusion means at the distal end of the catheter for closing the coronary ostia and isolating the coronary arteries from the systemic blood flow. The occlusion means can take the form of an inflatable occlusion balloon cuff, a tapered occlusion device or an O-ring encircling the distal end of the catheter.