Patents by Inventor Blair D. Walker
Blair D. Walker 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).
-
Patent number: 8277386Abstract: The present invention provides for an improved combination sensor tip that includes an ultrasound transducer and a pressure sensor both disposed at or in close proximity to the distal end of the combination sensor tip. The present invention also provides for an improved connector to couple a guide wire to a physiology monitor that reduces torsional resistance when maneuvering the guide wire.Type: GrantFiled: September 26, 2005Date of Patent: October 2, 2012Assignee: Volcano CorporationInventors: Masood Ahmed, Edward Anthony Oliver, Joseph Puleo, Christopher Dee Ingman, Blair D. Walker
-
Patent number: 8231537Abstract: The present invention provides for an improved combination sensor tip that includes a pressure sensor and a second sensor other than a pressure sensor, both disposed at or in close proximity to the distal end of the combination sensor tip. The present invention also provides for an improved connector to couple a guide wire to a physiology monitor that reduces torsional resistance when maneuvering the guide wire.Type: GrantFiled: June 23, 2006Date of Patent: July 31, 2012Assignee: Volcano CorporationInventors: Masood Ahmed, Edward Anthony Oliver, Joseph Puleo, Christopher Dee Ingman, Blair D. Walker
-
Publication number: 20120185022Abstract: A catheter is adapted to exchange heat with a body fluid, such as blood, flowing in a body conduit, such as a blood vessel. The catheter includes a shaft with a heat exchange region disposed at its distal end. This region may include hollow fibers which are adapted to receive a remotely cooled heat exchange fluid preferably flowing in a direction counter to that of the body fluid. The hollow fibers enhance the surface area of contact, as well as the mixing of both the heat exchange fluid and the body fluid. The catheter can be positioned to produce hypothermia in a selective area of the body or alternatively positioned to systemically cool the entire body system.Type: ApplicationFiled: March 7, 2012Publication date: July 19, 2012Applicants: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, ZOLL CIRCULATION, INC.Inventors: Wayne A. Noda, Mike L. Jones, Scott M. Evans, Blair D. Walker, William J. Worthen, Yves Pierre Gobin
-
Patent number: 8206332Abstract: A catheter is adapted to exchange heat with a body fluid, such as blood, flowing in a body conduit, such as a blood vessel. The catheter includes a shaft with a heat exchange region disposed at its distal end. This region may include hollow fibers which are adapted to receive a remotely cooled heat exchange fluid preferably flowing in a direction counter to that of the body fluid. The hollow fibers enhance the surface area of contact, as well as the mixing of both the heat exchange fluid and the body fluid. The catheter can be positioned to produce hypothermia in a selective area of the body or alternatively positioned to systemically cool the entire body system.Type: GrantFiled: June 7, 2010Date of Patent: June 26, 2012Assignees: Zoll Circulation Inc., The Regents of the University of CaliforniaInventors: Wayne A. Noda, Mike L. Jones, Scott M. Evans, Blair D. Walker, William J. Worthen, Yves Pierre Gobin
-
Publication number: 20120130250Abstract: The present invention provides for pleated bags used with interventional pullback systems, including imaging catheters such as IVUS catheters, as well as for use with other catheters. An exemplary pleated bag of the present invention may be an elongate, sterile bag, having a plurality of pleats near the distal end, and including an orifice proximal to the pleats designed to allow passage of a catheter into the bag. The present invention also provides for a system that includes a pullback device, catheter, and pleated bag. The present invention allows for improved imaging catheter procedures at reduced costs.Type: ApplicationFiled: January 30, 2012Publication date: May 24, 2012Applicant: VOLCANO CORPORATIONInventors: Timothy K. Glynn, Ernest W. Heflin, Norman H. Hossack, Julie A. Riolo, Blair D. Walker
-
Patent number: 8128595Abstract: A kit of parts comprises a system and instructions for use for controlling patient temperature which uses a central venous line catheter having a heat exchange element. The central venous line catheter is provided with one or more lumens for providing access to the central blood supply of the patient, and with additional lumens for communicating heat exchange fluid to the heat exchange element. Heat exchange fluid temperature is controlled through a feed back loop in which patient temperature is sensed and used to control a temperature control unit comprising a heating device and/or a cooling device in heat exchange relationship with the heat exchange fluid. A tubing set transports the heat exchange fluid between the central venous line and the temperature control unit, with a pump serving to circulate the fluid in a closed fluid circuit in the system.Type: GrantFiled: August 24, 2001Date of Patent: March 6, 2012Assignee: Zoll Circulation, Inc.Inventors: Blair D. Walker, Scott M. Evans, David P. Balding, Peter Barker
-
Patent number: 8109894Abstract: A catheter is adapted to exchange heat with a body fluid, such as blood, flowing in a body conduit, such as a blood vessel. The catheter includes a shaft with a heat exchange region disposed at its distal end. This region may include hollow fibers which are adapted to receive a remotely cooled heat exchange fluid preferably flowing in a direction counter to that of the body fluid. The hollow fibers enhance the surface area of contact, as well as the mixing of both the heat exchange fluid and the body fluid. The catheter can be positioned to produce hypothermia in a selective area of the body or alternatively positioned to systemically cool the entire body system.Type: GrantFiled: February 4, 2011Date of Patent: February 7, 2012Assignees: Zoll Circulation, Inc., The Regents of the University of CaliforniaInventors: Wayne A. Noda, Mike L. Jones, Scott M. Evans, Blair D. Walker, William J. Worthen, Yves Pierre Gobin
-
Patent number: 8105263Abstract: A catheter is adapted to exchange heat with a body fluid, such as blood, flowing in a body conduit, such as a blood vessel. The catheter includes a shaft with a heat exchange region disposed at its distal end. This region may include hollow fibers which are adapted to receive a remotely cooled heat exchange fluid preferably flowing in a direction counter to that of the body fluid. The hollow fibers enhance the surface area of contact, as well as the mixing of both the heat exchange fluid and the body fluid. The catheter can be positioned to produce hypothermia in a selective area of the body or alternatively positioned to systemically cool the entire body system.Type: GrantFiled: February 3, 2011Date of Patent: January 31, 2012Assignees: Zoll Circulation, Inc., The Regents of the University of CaliforniaInventors: Wayne A. Noda, Mike L. Jones, Scott M. Evans, Blair D. Walker, William J. Worthen, Yves Pierre Gobin
-
Patent number: 8104479Abstract: The present invention provides for pleated bags used with interventional pullback systems, including imaging catheters such as IVUS catheters, as well as for use with other catheters. An exemplary pleated bag of the present invention may be an elongate, sterile bag, having a plurality of pleats near the distal end, and including an orifice proximal to the pleats designed to allow passage of a catheter into the bag. The present invention also provides for a system that includes a pullback device, catheter, and pleated bag. The present invention allows for improved imaging catheter procedures at reduced costs.Type: GrantFiled: June 14, 2006Date of Patent: January 31, 2012Assignee: Volcano CorporationInventors: Timothy K. Glynn, Ernest W. Heflin, Norman H. Hossack, Julie A. Riolo, Blair D. Walker
-
Patent number: 8105262Abstract: A catheter is adapted to exchange heat with a body fluid, such as blood, flowing in a body conduit, such as a blood vessel. The catheter includes a shaft with a heat exchange region disposed at its distal end. This region may include hollow fibers which are adapted to receive a remotely cooled heat exchange fluid preferably flowing in a direction counter to that of the body fluid. The hollow fibers enhance the surface area of contact, as well as the mixing of both the heat exchange fluid and the body fluid. The catheter can be positioned to produce hypothermia in a selective area of the body or alternatively positioned to systemically cool the entire body system.Type: GrantFiled: February 3, 2011Date of Patent: January 31, 2012Assignees: Zoll Circulation, Inc., The Regents of the University of CaliforniaInventors: Wayne A. Noda, Mike L. Jones, Scott M. Evans, Blair D. Walker, William J. Worthen, Yves Pierre Gobin
-
Patent number: 8105264Abstract: A catheter is adapted to exchange heat with a body fluid, such as blood, flowing in a body conduit, such as a blood vessel. The catheter includes a shaft with a heat exchange region disposed at its distal end. This region may include hollow fibers which are adapted to receive a remotely cooled heat exchange fluid preferably flowing in a direction counter to that of the body fluid. The hollow fibers enhance the surface area of contact, as well as the mixing of both the heat exchange fluid and the body fluid. The catheter can be positioned to produce hypothermia in a selective area of the body or alternatively positioned to systemically cool the entire body system.Type: GrantFiled: February 4, 2011Date of Patent: January 31, 2012Assignees: Zoll Circulation, Inc., The Regents of the University of CalifoniaInventors: Wayne A. Noda, Mike L. Jones, Scott M. Evans, Blair D. Walker, William J. Worchen, Yves Pierre Gobin
-
Publication number: 20110264073Abstract: A liquid embolic delivery system is provided for trapping an injected liquid embolic composition to prevent the liquid embolic from solidifying or otherwise passing outside of an embolization area. The delivery system includes a catheter for delivery of a liquid embolic composition and a containment member positioned at a distal end of the catheter which is shaped to trap the liquid embolic composition delivered through the lumen of the catheter. The containment member is formed as a brush, nest, sponge, swab, flexible sack, or other shape into and around which the liquid embolic composition is injected. The liquid embolic composition is trapped or meshes with the containment member during solidification containing the liquid embolic and preventing the embolic composition from passing into the blood stream.Type: ApplicationFiled: June 2, 2011Publication date: October 27, 2011Inventors: Andrew H. Cragg, Blair D. Walker, John Perl, II, Michael Jones, George Robert Greene, George Wallace, Richard J. Greff
-
Patent number: 7976527Abstract: A liquid embolic delivery system is provided for trapping an injected liquid embolic composition to prevent the liquid embolic from solidifying or otherwise passing outside of an embolization area. The delivery system includes a catheter for delivery of a liquid embolic composition and a containment member positioned at a distal end of the catheter which is shaped to trap the liquid embolic composition delivered through the lumen of the catheter. The containment member is formed as a brush, nest, sponge, swab, flexible sack, or other shape into and around which the liquid embolic composition is injected. The liquid embolic composition is trapped or meshes with the containment member during solidification containing the liquid embolic and preventing the embolic composition from passing into the blood stream.Type: GrantFiled: October 24, 2007Date of Patent: July 12, 2011Assignee: Micro Therapeutics, Inc.Inventors: Andrew H. Cragg, Blair D. Walker, John Perl, II, Michael Jones, George R. Greene, George Wallace, Richard J. Greff
-
Publication number: 20110130812Abstract: A catheter is adapted to exchange heat with a body fluid, such as blood, flowing in a body conduit, such as a blood vessel. The catheter includes a shaft with a heat exchange region disposed at its distal end. This region may include hollow fibers which are adapted to receive a remotely cooled heat exchange fluid preferably flowing in a direction counter to that of the body fluid. The hollow fibers enhance the surface area of contact, as well as the mixing of both the heat exchange fluid and the body fluid. The catheter can be positioned to produce hypothermia in a selective area of the body or alternatively positioned to systemically cool the entire body system.Type: ApplicationFiled: February 4, 2011Publication date: June 2, 2011Inventors: WAYNE A. NODA, Mike L. Jones, Scott M. Evans, Blair D. Walker, William J. Worchen, Yves Pierre Gobin
-
Publication number: 20110125237Abstract: A catheter is adapted to exchange heat with a body fluid, such as blood, flowing in a body conduit, such as a blood vessel. The catheter includes a shaft with a heat exchange region disposed at its distal end. This region may include hollow fibers which are adapted to receive a remotely cooled heat exchange fluid preferably flowing in a direction counter to that of the body fluid. The hollow fibers enhance the surface area of contact, as well as the mixing of both the heat exchange fluid and the body fluid. The catheter can be positioned to produce hypothermia in a selective area of the body or alternatively positioned to systemically cool the entire body system.Type: ApplicationFiled: February 4, 2011Publication date: May 26, 2011Inventors: WAYNE A. NODA, Mike L. Jones, Scott M. Evans, Blair D. Walker, William J. Worthen, Yves Pierre Gobin
-
Publication number: 20110125236Abstract: A catheter is adapted to exchange heat with a body fluid, such as blood, flowing in a body conduit, such as a blood vessel. The catheter includes a shaft with a heat exchange region disposed at its distal end. This region may include hollow fibers which are adapted to receive a remotely cooled heat exchange fluid preferably flowing in a direction counter to that of the body fluid. The hollow fibers enhance the surface area of contact, as well as the mixing of both the heat exchange fluid and the body fluid. The catheter can be positioned to produce hypothermia in a selective area of the body or alternatively positioned to systemically cool the entire body system.Type: ApplicationFiled: February 3, 2011Publication date: May 26, 2011Inventors: WAYNE A. NODA, Mike L. Jones, Scott M. Evans, Blair D. Walker, William J. Worthen, Yves Pierre Gobin
-
Publication number: 20110125235Abstract: A catheter is adapted to exchange heat with a body fluid, such as blood, flowing in a body conduit, such as a blood vessel. The catheter includes a shaft with a heat exchange region disposed at its distal end. This region may include hollow fibers which are adapted to receive a remotely cooled heat exchange fluid preferably flowing in a direction counter to that of the body fluid. The hollow fibers enhance the surface area of contact, as well as the mixing of both the heat exchange fluid and the body fluid. The catheter can be positioned to produce hypothermia in a selective area of the body or alternatively positioned to systemically cool the entire body system.Type: ApplicationFiled: February 3, 2011Publication date: May 26, 2011Inventors: WAYNE A. NODA, Mike L. Jones, Scott M. Evans, Blair D. Walker, William J. Worthen, Yves Pierre Gobin
-
Patent number: 7930014Abstract: A system and method for providing a vascular image are disclosed wherein a single composite display simultaneously provides a first view of a patient including an angiogram image and a second view including an intravascular image rendered from information provided by an imaging probe mounted on a distal end of a flexible elongate member. A cursor, having a position derived from image information provided by a radiopaque marker proximate the imaging probe, is displayed within the angiogram image to correlate the position of the imaging probe to a presently displayed intravascular image and thus provide an easily discernable identification of a position within a patient corresponding to a currently displayed intravascular image. The resulting composite display simultaneously provides: an intravascular image that includes information about a vessel that is not available from an angiogram and a current location within a vessel of a source of intravascular image data from which the intravascular image is rendered.Type: GrantFiled: January 11, 2006Date of Patent: April 19, 2011Assignee: Volcano CorporationInventors: R. Scott Huennekens, Stephen M. Fry, Blair D. Walker, Jon D. Klingensmith, Nancy Perry Pool, Vincent J. Burgess, William R. Kanz
-
Patent number: 7857781Abstract: A catheter is adapted to exchange heat with a body fluid, such as blood, flowing in a body conduit, such as a blood vessel. The catheter includes a shaft with a heat exchange region disposed at its distal end. This region may include hollow fibers which are adapted to receive a remotely cooled heat exchange fluid preferably flowing in a direction counter to that of the body fluid. The hollow fibers enhance the surface area of contact, as well as the mixing of both the heat exchange fluid and the body fluid. The catheter can be positioned to produce hypothermia in a selective area of the body or alternatively positioned to systemically cool the entire body system.Type: GrantFiled: May 16, 2005Date of Patent: December 28, 2010Assignee: Zoll Circulation, Inc.Inventors: Wayne A. Noda, Mike L. Jones, Scott M. Evans, Blair D. Walker, William J. Worthen, Yves Pierre Gobin
-
Publication number: 20100241201Abstract: A catheter is adapted to exchange heat with a body fluid, such as blood, flowing in a body conduit, such as a blood vessel. The catheter includes a shaft with a heat exchange region disposed at its distal end. This region may include hollow fibers which are adapted to receive a remotely cooled heat exchange fluid preferably flowing in a direction counter to that of the body fluid. The hollow fibers enhance the surface area of contact, as well as the mixing of both the heat exchange fluid and the body fluid. The catheter can be positioned to produce hypothermia in a selective area of the body or alternatively positioned to systemically cool the entire body system.Type: ApplicationFiled: June 7, 2010Publication date: September 23, 2010Inventors: Wayne A. Noda, Mike L. Jones, Scott M. Evans, Blair D. Walker, William J. Worthen, Yves Pierre Gobin