Patents by Inventor Lawrence W. Hu
Lawrence W. Hu 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: 9498198Abstract: Surgical devices for stabilizing the heart are disclosed which facilitate anastomosis under beating heart conditions. Various instruments or devices may be maneuvered and secured on a retractor device to provide stabilization of the heart. An instrument mount is provided which is preferably configured to accept a surgical instrument, such as a tissue stabilizer, and to allow the instrument to be easily maneuvered to a desired position and subsequently locked into position with a simple operation of a single locking actuator. Further disclosed are stabilizer devices each having at least one surface for contacting the heart and each being adapted to be mounted to the retractor while having the ability to be positioned in the desired location against the heart.Type: GrantFiled: April 27, 2010Date of Patent: November 22, 2016Assignee: MAQUET CARDIOVASCULAR, LLCInventors: Lawrence W. Hu, David J. Paul, Eugene Edward Reis, Harry Leonard Green, II, Joshua K. Wallin, Morejohn P. Dwight, Charles S. Taylor, Gary B. Weller, Richard M. Ferrari
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Publication number: 20100210916Abstract: Surgical devices for stabilizing the heart are disclosed which facilitate anastomosis under beating heart conditions. Various instruments or devices may be maneuvered and secured on a retractor device to provide stabilization of the heart. An instrument mount is provided which is preferably configured to accept a surgical instrument, such as a tissue stabilizer, and to allow the instrument to be easily maneuvered to a desired position and subsequently locked into position with a simple operation of a single locking actuator. Further disclosed are stabilizer devices each having at least one surface for contacting the heart and each being adapted to be mounted to the retractor while having the ability to be positioned in the desired location against the heart.Type: ApplicationFiled: April 27, 2010Publication date: August 19, 2010Inventors: Lawrence W. Hu, David J. Paul, Eugene Edward Reis, Harry Leonard Green, II, Joshua K. Wallin, Morejohn P. Dwight, Charles S. Taylor, Gary B. Weller, Richard M. Ferrari
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Patent number: 7736307Abstract: Surgical devices for stabilizing the heart are disclosed which facilitate anastomosis under beating heart conditions. Various instruments or devices may be maneuvered and secured on a retractor device to provide stabilization of the heart. An instrument mount is provided which is preferably configured to accept a surgical instrument, such as a tissue stabilizer, and to allow the instrument to be easily maneuvered to a desired position and subsequently locked into position with a simple operation of a single locking actuator. Further disclosed are stabilizer devices each having at least one surface for contacting the heart and each being adapted to be mounted to the retractor while having the ability to be positioned in the desired location against the heart.Type: GrantFiled: December 12, 2003Date of Patent: June 15, 2010Assignee: Maquet Cardiovascular LLCInventors: Lawrence W. Hu, David J. Paul, Eugene Edward Reis, Harry Leonard Green, II, Joshua K. Wallin, Morejohn P. Dwight, Charles S. Taylor, Gary B. Weller, Richard M. Ferrari
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Patent number: 7238155Abstract: In accordance with the present invention, there is disclosed surgical methods and apparatus for accessing and stabilizing the heart. The methods and apparatus facilitate access to an anastomosis site, allows various instruments or devices to be maneuvered and secured in place, and provide stabilization of the heart. In particular, the apparatus involves a retractor assembly having a pair of opposing blades having a channel adapted to engage an incision in a patient. The retractor blades may have features to cooperatively engage an instrument mount. The instrument mount may hold an instrument, such as a tissue stabilizer, and allows the instrument to be easily maneuvered. The retractor blades may have a number of suture locks for securing sutures used during surgery. The retractor system is particularly useful in accessing, positioning and stabilizing the beating heart for coronary artery bypass graft surgery.Type: GrantFiled: September 23, 2003Date of Patent: July 3, 2007Inventors: Lawrence W. Hu, David J. Paul, Eugene Edward Reis, Harry Leonard Green, II
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Patent number: 7220228Abstract: In accordance with the present invention, there is disclosed surgical methods and apparatus for accessing and stabilizing the heart. The methods and apparatus facilitate access to an anastomosis site, allows various instruments or devices to be maneuvered and secured in place, and provide stabilization of the heart. In particular, the apparatus involves a retractor apparatus having one or more opposing blades having a channel adapted to engage an incision in a patient. The retractor blades may have features to cooperatively engage an instrument mount. The instrument mount preferably is configured to hold an instrument, such as a tissue stabilizer, and allows the instrument to be easily maneuvered. The retractor blades may have a number of suture locks for securing sutures used during surgery. The retractor system is particularly useful in accessing, positioning and stabilizing the beating heart for coronary artery bypass graft surgery.Type: GrantFiled: July 6, 2001Date of Patent: May 22, 2007Assignee: Cardiothoracic System, Inc.Inventors: Lawrence W. Hu, David J. Paul, Eugene E. Reis, Harry L. Green, II
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Publication number: 20040143168Abstract: Surgical devices for stabilizing the heart are disclosed which facilitate anastomosis under beating heart conditions. Various instruments or devices may be maneuvered and secured on a retractor device to provide stabilization of the heart. An instrument mount is provided which is preferably configured to accept a surgical instrument, such as a tissue stabilizer, and to allow the instrument to be easily maneuvered to a desired position and subsequently locked into position with a simple operation of a single locking actuator. Further disclosed are stabilizer devices each having at least one surface for contacting the heart and each being adapted to be mounted to the retractor while having the ability to be positioned in the desired location against the heart.Type: ApplicationFiled: December 12, 2003Publication date: July 22, 2004Inventors: Lawrence W. Hu, David J. Paul, Eugene Edward Reis, Harry Leonard Green, Joshua K. Wallin, Dwight P. Morejohn, Charles S. Taylor, Gary B. Weller, Richard M. Ferrari
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Publication number: 20040092799Abstract: In accordance with the present invention, there is disclosed surgical methods and apparatus for accessing and stabilizing the heart. The methods and apparatus facilitate access to an anastomosis site, allows various instruments or devices to be maneuvered and secured in place, and provide stabilization of the heart. In particular, the apparatus involves a retractor assembly having a pair of opposing blades having a channel adapted to engage an incision in a patient. The retractor blades may have features to cooperatively engage an instrument mount. The instrument mount may hold an instrument, such as a tissue stabilizer, and allows the instrument to be easily maneuvered. The retractor blades may have a number of suture locks for securing sutures used during surgery. The retractor system is particularly useful in accessing, positioning and stabilizing the beating heart for coronary artery bypass graft surgery.Type: ApplicationFiled: September 23, 2003Publication date: May 13, 2004Inventors: Lawrence W. Hu, David J. Paul, Eugene Edward Reis, Harry Leonard Green
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Patent number: 6685632Abstract: Surgical devices for stabilizing the heart which facilitate anastomosis under beating heart conditions. Various instruments or devices may be maneuvered and secured on a retractor device to provide stabilization of the heart. An instrument mount is provided which is preferably configured to accept a surgical instrument, such as a tissue stabilizer, and to allow the instrument to be easily maneuvered to a desired position and subsequently locked into position. Stabilizer devices each having at least one surface for contacting the heart and each being adapted to be mounted to the retractor while having the ability to be positioned in the desired location against the heart are provided.Type: GrantFiled: March 6, 2002Date of Patent: February 3, 2004Assignee: Cardiothoracic Systems, Inc.Inventors: Lawrence W. Hu, David J. Paul, Eugene Edward Reis, Harry Leonard II Green, Joshua K. Wallin, Dwight P. Morejohn, Charles S. Taylor, Gary B. Weller, Richard M. Ferrari
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Patent number: 6652454Abstract: In accordance with the present invention, there is disclosed surgical methods and apparatus for accessing and stabilizing the heart. The methods and apparatus facilitate access to an anastomosis site, allows various instruments or devices to be maneuvered and secured in place, and provide stabilization of the heart. In particular, the apparatus involves a retractor assembly having a pair of opposing blades having a channel adapted to engage an incision in a patient. The retractor blades may have features to cooperatively engage an instrument mount. The instrument mount may hold an instrument, such as a tissue stabilizer, and allows the instrument to be easily maneuvered. The retractor blades may have a number of suture locks for securing sutures used during surgery. The retractor system is particularly useful in accessing, positioning and stabilizing the beating heart for coronary artery bypass graft surgery.Type: GrantFiled: January 10, 2001Date of Patent: November 25, 2003Inventors: Lawrence W. Hu, David J. Paul, Eugene Edward Reis, Harry Leonard Green, II
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Publication number: 20020004628Abstract: In accordance with the present invention, there is disclosed surgical methods and apparatus for accessing and stabilizing the heart. The methods and apparatus facilitate access to an anastomosis site, allows various instruments or devices to be maneuvered and secured in place, and provide stabilization of the heart. In particular, the apparatus involves a retractor apparatus having one or more opposing blades having a channel adapted to engage an incision in a patient. The retractor blades may have features to cooperatively engage an instrument mount. The instrument mount preferably is configured to hold an instrument, such as a tissue stabilizer, and allows the instrument to be easily maneuvered. The retractor blades may have a number of suture locks for securing sutures used during surgery. The retractor system is particularly useful in accessing, positioning and stabilizing the beating heart for coronary artery bypass graft surgery.Type: ApplicationFiled: July 6, 2001Publication date: January 10, 2002Inventors: Lawrence W. Hu, David J. Paul, Eugene Edward Reis, Harry Leonard Green
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Patent number: 6331158Abstract: Surgical methods and apparatus for accessing and stabilizing the heart. The methods and apparatus facilitate access to an anastomosis site, allow various instruments or devices to be maneuvered and secured in place, and provide stabilization of the heart. In particular, the apparatus involves a retractor assembly having a pair of opposing blades having a channel adapted to engage an incision in a patient. The retractor blades may have features to cooperatively engage an instrument mount. The retractor blades may have a number of suture locks for securing sutures used during surgery. The retractor system is particularly useful in accessing, positioning and stabilizing the beating heart for coronary artery bypass graft surgery.Type: GrantFiled: May 4, 1999Date of Patent: December 18, 2001Assignee: Cardiothoracic Systems, Inc.Inventors: Lawrence W. Hu, David J. Paul, Eugene Edward Reis, Harry Leonard Green, II
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Publication number: 20010020121Abstract: In accordance with the present invention, there is disclosed surgical methods and apparatus for accessing and stabilizing the heart. The methods and apparatus facilitate access to an anastomosis site, allows various instruments or devices to be maneuvered and secured in place, and provide stabilization of the heart. In particular, the apparatus involves a retractor apparatus having one or more opposing blades having a channel adapted to engage an incision in a patient. The retractor blades may have features to cooperatively engage an instrument mount. The instrument mount preferably is configured to hold an instrument, such as a tissue stabilizer, and allows the instrument to be easily maneuvered. The retractor blades may have a number of suture locks for securing sutures used during surgery. The retractor system is particularly useful in accessing, positioning and stabilizing the beating heart for coronary artery bypass graft surgery.Type: ApplicationFiled: May 4, 1999Publication date: September 6, 2001Inventors: LAWRENCE W. HU, DAVID J. PAUL, EUGENE EDWARD REIS, HARRY LEONARD GREEN
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Patent number: 6283912Abstract: In accordance with the present invention, there is disclosed surgical methods and apparatus for accessing and stabilizing the heart. The methods and apparatus facilitate access to an anastomosis site, allows various instruments or devices to be maneuvered and secured in place, and provide stabilization of the heart. In particular, the apparatus involves a retractor apparatus having one or more opposing blades having a channel adapted to engage an incision in a patient. The retractor blades may have features to cooperatively engage an instrument mount. The instrument mount preferably is configured to hold an instrument, such as a tissue stabilizer, and allows the instrument to be easily maneuvered. The retractor blades may have a number of suture locks for securing sutures used during surgery. The retractor system is particularly useful in accessing, positioning and stabilizing the beating heart for coronary artery bypass graft surgery.Type: GrantFiled: May 4, 1999Date of Patent: September 4, 2001Assignee: Cardiothoracic Systems, Inc.Inventors: Lawrence W. Hu, David J. Paul, Eugene Edward Reis, Harry Leonard Green, II
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Publication number: 20010002429Abstract: In accordance with the present invention, there is disclosed surgical methods and apparatus for accessing and stabilizing the heart. The methods and apparatus facilitate access to an anastomosis site, allows various instruments or devices to be maneuvered and secured in place, and provide stabilization of the heart. In particular, the apparatus involves a retractor assembly having a pair of opposing blades having a channel adapted to engage an incision in a patient. The retractor blades may have features to cooperatively engage an instrument mount. The instrument mount may hold an instrument, such as a tissue stabilizer, and allows the instrument to be easily maneuvered. The retractor blades may have a number of suture locks for securing sutures used during surgery. The retractor system is particularly useful in accessing, positioning and stabilizing the beating heart for coronary artery bypass graft surgery.Type: ApplicationFiled: January 10, 2001Publication date: May 31, 2001Inventors: Lawrence W. Hu, David J. Paul, Eugene Edward Reis, Harry Leonard Green
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Patent number: 6231506Abstract: In accordance with the present invention, there is disclosed surgical methods and apparatus for accessing and stabilizing the heart. The methods and apparatus facilitate access to an anastomosis site, allows various instruments or devices to be maneuvered and secured in place, and provide stabilization of the heart. In particular, the apparatus involves a retractor assembly having a pair of opposing blades having a channel adapted to engage an incision in a patient. The retractor blades may have features to cooperatively engage an instrument mount. The instrument mount may hold an instrument, such as a tissue stabilizer, and allows the instrument to be easily maneuvered. The retractor blades may have a number of suture locks for securing sutures used during surgery. The retractor system is particularly useful in accessing, positioning and stabilizing the beating heart for coronary artery bypass graft surgery.Type: GrantFiled: May 4, 1999Date of Patent: May 15, 2001Assignee: Cardiothoracic Systems, Inc.Inventors: Lawrence W. Hu, David J. Paul, Eugene Edward Reis, Harry Leonard Green, II