Patents by Inventor Craig L. Adams
Craig L. Adams 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: 20240079861Abstract: A method includes providing an earth wire including a core formed of a composite material, and an encapsulation layer disposed around the core. The encapsulation layer includes a conducive material and may be optionally pretensioned. The earth wire is hung between a first pole and a second pole. A suspension member may be coupled to the earth wire, and a set of conductors may be coupled to the suspension member such that a weight of the set of conductors is supported by the earth wire. A strength to weight ratio of the earth wire may be in a range of about 70 to about 500.Type: ApplicationFiled: April 26, 2023Publication date: March 7, 2024Inventors: Jianzhong Jason HUANG, Craig L. ADAMS, Rulong CHEN
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Patent number: 7819848Abstract: Various improvements are made to catheters adapted to be flushed to remove air from within the catheter. For example, improved catheters include a catheter with a self-sealing seal at its distal end to pass a venting tube for removing air from within the catheter, a catheter having a distal end whose diameter is reduced to compress a seal adapted to pass a venting tube; a catheter having a cap at its distal end where the cap has a venting hole that is opened or closed depending on the conditions subjected to the shape-memory material of the cap; a catheter having a vent hole at its distal end; a catheter having an opening at its distal end that can be closed by a plug; and a catheter having a narrow neck with an opening to vent air and the neck is coupled to a tab where twisting the tab closes the opening in the neck.Type: GrantFiled: March 4, 2004Date of Patent: October 26, 2010Assignee: Boston Scientific Scimed, Inc.Inventor: Craig L. Adams
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Patent number: 7625367Abstract: A telescoping catheter is adapted to provide improved support and protection for a drive cable by providing, in addition to an outer sheath and a telescoping sheath, an inner sheath surrounding the drive cable. The outer sheath has a relatively larger diameter, to allow for a flared end of the telescoping sheath to pass freely within the outer sheath. The inner sheath protects and supports the drive cable when the telescoping catheter is extended and the drive cable would otherwise only be protected and supported by the outer sheath having a diameter too large to provide the desired amount of support and protection for the drive cable.Type: GrantFiled: December 3, 2003Date of Patent: December 1, 2009Assignee: Scimed Life Systems, Inc.Inventors: Craig L. Adams, Almira Gascon
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Patent number: 6913601Abstract: 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.Type: GrantFiled: May 22, 2001Date of Patent: July 5, 2005Assignee: Heartport, Inc.Inventors: Frederick G. St. Goar, William S. Peters, Philip C. Evard, Stephen W. Boyd, Craig L. Adams, Richard L. Mueller, Jr., John H. Stevens
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Publication number: 20040171937Abstract: Various improvements are made to catheters adapted to be flushed to remove air from within the catheter. For example, improved catheters include a catheter with a self-sealing seal at its distal end to pass a venting tube for removing air from within the catheter, a catheter having a distal end whose diameter is reduced to compress a seal adapted to pass a venting tube; a catheter having a cap at its distal end where the cap has a venting hole that is opened or closed depending on the conditions subjected to the shape-memory material of the cap; a catheter having a vent hole at its distal end; a catheter having an opening at its distal end that can be closed by a plug; and a catheter having a narrow neck with an opening to vent air and the neck is coupled to a tab where twisting the tab closes the opening in the neck.Type: ApplicationFiled: March 4, 2004Publication date: September 2, 2004Applicant: Scimed Life Systems, Inc.Inventor: Craig L. Adams
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Publication number: 20040059228Abstract: Various improvements are made to catheters adapted to be flushed to remove air from within the catheter. For example, improved catheters include a catheter with a self-sealing seal at its distal end to pass a venting tube for removing air from within the catheter, a catheter having a distal end whose diameter is reduced to compress a seal adapted to pass a venting tube; a catheter having a cap at its distal end where the cap has a venting hole that is opened or closed depending on the conditions subjected to the shape-memory material of the cap; a catheter having a vent hole at its distal end; a catheter having an opening at its distal end that can be closed by a plug; and a catheter having a narrow neck with an opening to vent air and the neck is coupled to a tab where twisting the tab closes the opening in the neck.Type: ApplicationFiled: September 23, 2002Publication date: March 25, 2004Applicant: Scimed Life Systems, Inc.Inventors: Lawrence Wasicek, Richard A. Bautista, Craig L. Adams
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Publication number: 20020077595Abstract: The coronary sinus catheter has a balloon for occluding the coronary sinus and a lumen for delivering fluid distal to the occluding member. The catheter has a proximal portion which is relatively stiff to provide column strength to facilitate insertion, advancement and steering of the catheter. The catheter also has a distal portion which is more flexible than the proximal portion to provide an atraumatic, kink-resistant distal end. The flexible, distal portion also helps prevent damage to the coronary sinus and facilitates guiding the catheter into the coronary sinus.Type: ApplicationFiled: June 15, 1998Publication date: June 20, 2002Inventors: RONALD R HUNDERTMARK, CRAIG L ADAMS
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Publication number: 20010023334Abstract: 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.Type: ApplicationFiled: May 22, 2001Publication date: September 20, 2001Applicant: HEARTPORT, INC.Inventors: Frederick G. St. Goar, William S. Peters, Philip C. Evard, Stephen W. Boyd, Craig L. Adams, Richard L. Mueller, John H. Stevens
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Publication number: 20010001825Abstract: A device for minimizing displacements of the heart when performing a beating heart surgical procedure including two heart engaging members. The heart engaging members are slidably coupled to a retractor. The heart engaging members may be rotated and extended as necessary to reach the target site on the patient's heart. The heart engaging members have curved distal ends which are configured to engage a coronary shunt positioned in the coronary artery. A suture extends around the coronary and is coupled to the heart engaging members.Type: ApplicationFiled: January 12, 2001Publication date: May 24, 2001Applicant: HEARTPORT, INC.Inventors: David W. Snow, Craig L. Adams, Brian S. Donlon, Hanson S. Gifford
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Patent number: 6183486Abstract: A device for minimizing displacements of the heart when performing a beating heart surgical procedure including two heart engaging members. The heart engaging members are slidably coupled to a retractor. The heart engaging members may be rotated and extended as necessary to reach the target site on the patient's heart. The heart engaging members have curved distal ends which are configured to engage a coronary shunt positioned in the coronary artery. A suture extends around the coronary and is coupled to the heart engaging members.Type: GrantFiled: March 16, 1999Date of Patent: February 6, 2001Assignee: Heartport, Inc.Inventors: David W. Snow, Craig L. Adams, Brian S. Donlon, Hanson S. Gifford, III
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Patent number: 5913842Abstract: retrograde delivery catheter includes at its distal end a balloon configured to occlude the coronary sinus of a patient's heart, and has a length and flexibility which allow the distal end to be positioned in the coronary sinus with the proximal end extending transluminally to a peripheral vein such as an internal jugular vein and out of the body through a puncture therein. The delivery catheter has a delivery lumen extending between its proximal and distal ends which is configured to allow a cardioplegic fluid to be delivered at a flow rate of at least 200 ml/min with a pump pressure less than 300 mm Hg, thereby allowing cardioplegic arrest to be maintained using a blood cardioplegic fluid without causing excessive hemolysis.Type: GrantFiled: February 11, 1998Date of Patent: June 22, 1999Assignee: Heartport, Inc.Inventors: Stephen W. Boyd, John H. Stevens, Philip C. Evard, Craig L. Adams
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Patent number: 5807318Abstract: 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.Type: GrantFiled: March 12, 1996Date of Patent: September 15, 1998Assignee: Heartport, Inc.Inventors: Frederick G. St. Goar, William S. Peters, Philip C. Evard, Stephen W. Boyd, Craig L. Adams, Richard L. Mueller, Jr., John H. Stevens
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Patent number: 5797933Abstract: A coronary shunt for occluding both sides of an anastomosis site and providing a blood flow path across the anastomosis site. The shunt includes two occluding members sized and configured to occlude the coronary artery. A tether is attached to the coronary shunt and is used to remove the coronary shunt from the coronary artery before completing the anastomosis.Type: GrantFiled: July 16, 1996Date of Patent: August 25, 1998Assignee: Heartport, Inc.Inventors: David W. Snow, Craig L. Adams, Brian S. Donlon, Hanson S. Gifford, III
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Patent number: 5738652Abstract: A retrograde delivery catheter includes at its distal end a balloon configured to occlude the coronary sinus of a patient's heart, and has a length and flexibility which allow the distal end to be positioned in the coronary sinus with the proximal end extending transluminally to a peripheral vein such as an internal jugular vein and out of the body through a puncture therein. The delivery catheter has a delivery lumen extending between its proximal and distal ends which is configured to allow a cardioplegic fluid to be delivered at a flow rate of at least 200 ml/min with a pump pressure less than 300 mm Hg, thereby allowing cardioplegic arrest to be maintained using a blood cardioplegic fluid without causing excessive hemolysis.Type: GrantFiled: January 17, 1997Date of Patent: April 14, 1998Assignee: Heartport, Inc.Inventors: Stephen W. Boyd, John H. Stevens, Philip C. Evard, Craig L. Adams
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Patent number: 5695457Abstract: 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.Type: GrantFiled: December 7, 1994Date of Patent: December 9, 1997Assignee: Heartport, Inc.Inventors: Frederick G. St. Goar, William S. Peters, Philip C. Evard, Stephen W. Boyd, Craig L. Adams, Richard L. Mueller, Jr., John H. Stevens
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Patent number: 5558644Abstract: A retrograde delivery catheter includes at its distal end a balloon configured to occlude the coronary sinus of a patient's heart, and has a length and flexibility which allow the distal end to be positioned in the coronary sinus with the proximal end extending transluminally to a peripheral vein such as an internal jugular vein and out of the body through a puncture therein. The delivery catheter has a delivery lumen extending between its proximal and distal ends which is configured to allow a cardioplegic fluid to be delivered at a flow rate of at least 200 ml/min with a pump pressure less than 300 mm Hg, thereby allowing cardioplegic arrest to be maintained using a blood cardioplegic fluid without causing excessive hemolysis.Type: GrantFiled: January 12, 1995Date of Patent: September 24, 1996Assignee: Heartport, Inc.Inventors: Stephen W. Boyd, John H. Stevens, Philip C. Evard, Craig L. Adams