Patents by Inventor Mark A. Vierra
Mark A. Vierra 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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Publication number: 20110106029Abstract: A polyp trap comprises a body portion and a top portion sealingly and releasably covering the body portion. A suction entrance passageway in the top portion receives liquid and tissue during examination procedures. A removable tissue collection basket in the body portion has a bottom wall with small drainage openings therein, and a removable screen is positioned in the body portion below the collection basket. A suction discharge passageway in the body portion is located below the removable screen, and the discharge passageway is connected to a suction source for the passage of liquid from the body portion.Type: ApplicationFiled: November 2, 2010Publication date: May 5, 2011Inventors: Mary L. Garren, Lloyd R. Garren, Silas Lum, Daniel G. Luba, James A. Disario, Mark Vierra
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Patent number: 7025722Abstract: The invention provides a system and method for performing less-invasive surgical procedures within a body cavity. In a preferred embodiment, the invention provides a system and method for isolating a surgical site such as an anastomosis between an internal mammary artery and a coronary artery in a thoracoscopic coronary artery bypass grafting procedure. The system comprises a foot (11) pivotally coupled to the distal end of a shaft (3) by a linkage (13). The foot has first and second engaging portions (15, 17) with contact surfaces for engaging a tissue surface. The engaging portions are movable between an open position, where the contact surfaces are separated by a gap, and a collapsed position, where the foot is configured for delivery through the percutaneous penetration.Type: GrantFiled: April 30, 2004Date of Patent: April 11, 2006Assignee: Heartport, Inc.Inventors: Mark A. Vierra, Alex T. Roth
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Publication number: 20040254425Abstract: The invention provides a system and method for performing less-invasive surgical procedures within a body cavity. In a preferred embodiment, the invention provides a system and method for isolating a surgical site such as an anastomosis between an internal mammary artery and a coronary artery in a thoracoscopic coronary artery bypass grafting procedure. The system comprises a foot (11) pivotally coupled to the distal end of a shaft (3) by a linkage (13). The foot has first and second engaging portions (15, 17) with contact surfaces for engaging a tissue surface. The engaging portions are movable between an open position, where the contact surfaces are separated by a gap, and a collapsed position, where the foot is configured for delivery through the percutaneous penetration.Type: ApplicationFiled: April 30, 2004Publication date: December 16, 2004Inventors: Mark A. Vierra, Alex T. Roth
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Patent number: 6821247Abstract: The invention provides a system and method for performing less-invasive surgical procedures within a body cavity. In a preferred embodiment, the invention provides a system and method for isolating a surgical site such as an anastomosis between an internal mammary artery and a coronary artery in a thoracoscopic coronary artery bypass grafting procedure. The system comprises a foot (11) pivotally coupled to the distal end of a shaft (3) by a linkage (13). The foot has first and second engaging portions (15, 17) with contact surfaces for engaging a tissue surface. The engaging portions are movable between an open position, where the contact surfaces are separated by a gap, and a collapsed position, where the foot is configured for delivery through the percutaneous penetration.Type: GrantFiled: September 27, 2002Date of Patent: November 23, 2004Assignee: Heartport, Inc.Inventors: Mark A. Vierra, Alex T. Roth
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Publication number: 20030055318Abstract: The invention provides a system and method for performing less-invasive surgical procedures within a body cavity. In a preferred embodiment, the invention provides a system and method for isolating a surgical site such as an anastomosis between an internal mammary artery and a coronary artery in a thoracoscopic coronary artery bypass grafting procedure. The system comprises a foot (1) pivotally coupled to the distal end of a shaft (3) by a linkage (13). The foot has first and second engaging portions (15, 17) with contact surfaces for engaging a tissue surface. The engaging portions are movable between an open position, where the contact surfaces are separated by a gap, and a collapsed position, where the foot is configured for delivery through the percutaneous penetration.Type: ApplicationFiled: September 27, 2002Publication date: March 20, 2003Inventors: Mark A. Vierra, Alex T. Roth
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Patent number: 6482151Abstract: The invention provides a system and method for performing less-invasive surgical procedures within a body cavity. In a preferred embodiment, the invention provides a system and method for isolating a surgical site such as an anastomosis between an internal mammary artery and a coronary artery in a thoracoscopic coronary artery bypass grafting procedure. The system comprises a foot (11) pivotally coupled to the distal end of a shaft (3) by a linkage (13). The foot has first and second engaging portions (15, 17) with contact surfaces for engaging a tissue surface. The engaging portions are movable between an open position, where the contact surfaces are separated by a gap, and a collapsed position, where the foot is configured for delivery through the percutaneous penetration.Type: GrantFiled: October 3, 2000Date of Patent: November 19, 2002Assignee: Heartport, Inc.Inventors: Mark A. Vierra, Alex T. Roth
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Patent number: 6149583Abstract: The invention provides a system and method for performing less-invasive surgical procedures within a body cavity. In a preferred embodiment, the invention provides a system and method for isolating a surgical site such as an anastomosis between an internal mammary artery and a coronary artery in a thoracoscopic coronary artery bypass grafting procedure. The system comprises a foot (11) pivotally coupled to the distal end of a shaft (3) by a linkage (13). The foot has first and second engaging portions (15, 17) with contact surfaces for engaging a tissue surface. The engaging portions are movable between an open position, where the contact surfaces are separated by a gap, and a collapsed position, where the foot is configured for delivery through the percutaneous penetration.Type: GrantFiled: May 6, 1999Date of Patent: November 21, 2000Assignee: Heartport, Inc.Inventors: Mark A. Vierra, Alex T. Roth
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Patent number: 6139492Abstract: The invention provides a system and method for performing less-invasive surgical procedures within a body cavity. In a preferred embodiment, the invention provides a system and method for isolating a surgical site such as an anastomosis between an internal mammary artery and a coronary artery in a thoracoscopic coronary artery bypass grafting procedure. The system comprises a foot (11) pivotally coupled to the distal end of a shaft (3) by a linkage (13). The foot has first and second engaging portions (15, 17) with contact surfaces for engaging a tissue surface. The engaging portions are movable between an open position, where the contact surfaces are separated by a gap, and a collapsed position, where the foot is configured for delivery through the percutaneous penetration.Type: GrantFiled: April 8, 1999Date of Patent: October 31, 2000Assignee: Heartport, Inc.Inventors: Mark A. Vierra, Alex T. Roth
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Patent number: 6017304Abstract: The invention provides a system and method for performing less-invasive surgical procedures within a body cavity. In a preferred embodiment, the invention provides a system and method for isolating a surgical site such as an anastomosis between an internal mammary artery and a coronary artery in a thoracoscopic coronary artery bypass grafting procedure. The system comprises a foot (11) pivotally coupled to the distal end of a shaft (3) by a linkage (13). The foot has first and second engaging portions (15, 17) with contact surfaces for engaging a tissue surface. The engaging portions are movable between an open position, where the contact surfaces are separated by a gap, and a collapsed position, where the foot is configured for delivery through the percutaneous penetration.Type: GrantFiled: April 20, 1998Date of Patent: January 25, 2000Inventors: Mark A. Vierra, Alex T. Roth
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Patent number: 5807243Abstract: The invention provides a system and method for performing less-invasive surgical procedures within a body cavity. In a preferred embodiment, the invention provides a system and method for isolating a surgical site such as an anastomosis between an internal mammary artery and a coronary artery in a thoracoscopic coronary artery bypass grafting procedure. The system comprises a foot (11) pivotally coupled to the distal end of a shaft (3) by a linkage (13). The foot has first and second engaging portions (15, 17) with contact surfaces for engaging a tissue surface. The engaging portions are movable between an open position, where the contact surfaces are separated by a gap, and a collapsed position, where the foot is configured for delivery through the percutaneous penetration.Type: GrantFiled: February 20, 1996Date of Patent: September 15, 1998Assignee: Heartport, Inc.Inventors: Mark A. Vierra, Alex T. Roth
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Patent number: 5749892Abstract: The invention provides a system and method for performing less-invasive surgical procedures within a body cavity. In a preferred embodiment, the invention provides a system and method for isolating a surgical site such as an anastomosis between an internal mammary artery and a coronary artery in a thoracoscopic coronary artery bypass grafting procedure. The system comprises a foot (11) pivotally coupled to the distal end of a shaft (3) by a linkage (13). The foot has first and second engaging portions (15, 17) with contact surfaces for engaging a tissue surface. The engaging portions are movable between an open position, where the contact surfaces are separated by a gap, and a collapsed position, where the foot is configured for delivery through the percutaneous penetration.Type: GrantFiled: July 24, 1996Date of Patent: May 12, 1998Assignee: Heartport, Inc.Inventors: Mark A. Vierra, Alex T. Roth