Patents by Inventor Timothy Stivland
Timothy Stivland 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: 8465456Abstract: An intravascular aspirating assembly comprising an elongate guidewire having a proximally facing filter disposed on a distal portion thereof, a single operator exchange aspiration catheter disposed on the guidewire, the aspiration catheter having a proximal end, a distal end and an aspiration lumen extending therebetween, an extension catheter slidably disposed in the aspiration lumen and having a length greater than that of the aspiration catheter.Type: GrantFiled: July 31, 2008Date of Patent: June 18, 2013Assignee: Boston Scientific Scimed, Inc.Inventor: Timothy Stivland
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Publication number: 20100030186Abstract: An intravascular aspirating assembly comprising an elongate guidewire having a proximally facing filter disposed on a distal portion thereof, a single operator exchange aspiration catheter disposed on the guidewire, the aspiration catheter having a proximal end, a distal end and an aspiration lumen extending therebetween, an extension catheter slidably disposed in the aspiration lumen and having a length greater than that of the aspiration catheter.Type: ApplicationFiled: July 31, 2008Publication date: February 4, 2010Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventor: Timothy Stivland
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Publication number: 20070299423Abstract: Devices constrain a distal portion or region of a wire, such as a guidewire or a filterwire, from movement at or near a proximal portion or region of the wire. A magnetic field may be used to constrain a wire passing through a hub. A clamping apparatus may include first and second clamps that, when used in combination, restrain wire movement while advancing an exchange device. A guide catheter may include an anchor movable between an open configuration and a closed configuration.Type: ApplicationFiled: June 13, 2007Publication date: December 27, 2007Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Lloyd Jones, Timothy Stivland, Jayson Delos Santos, Herbert Mendoza, Ari Ryan
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Publication number: 20070265655Abstract: Embolic protection filtering devices and methods for making and using the same. An example filtering device includes a filter wire, a filter including a support member coupled to the filter wire, and a filter membrane coupled to the support member. A traction member may be coupled to the support member. The traction member may help to stabilize the longitudinal position of the filtering device within a body lumen.Type: ApplicationFiled: May 9, 2006Publication date: November 15, 2007Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Richard Renati, Timothy Stivland
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Publication number: 20060229658Abstract: An emboli capturing filter device and system are provided. The filter device includes an expandable filter disposed about an elongate member. The filter has a proximal mouth portion facing the proximal end of the elongate member, and a distal portion extending toward to distal end of the elongate member. A support arm is coupled to the elongate member and mouth portion of the expandable filter. When the filter is in an expanded orientation, the support arm is attached to the elongate member at or distal of the mouth of the filter.Type: ApplicationFiled: April 7, 2005Publication date: October 12, 2006Inventor: Timothy Stivland
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Publication number: 20060217682Abstract: A catheter having a flexible outer tube and a lubricious inner tube bonded within the flexible outer tube. One catheter has a distal outer tube formed of a substantial portion of a first, flexible material, an inner tube having a lubricious inside wall surface formed of a second, lubricious material, and an outer tube wall surface compatible with heat bonding the inner tube outside wall surface to the outer tube wall surface. A preferred flexible material is polyether block amide (PEBA) and a preferred lubricious material is polyethylene. One catheter utilizing the invention includes a flexible distal outer tube having an orifice through the tube wall and an inner tube inserted through the orifice having a lubricious inner layer surrounded by a tie-layer, surrounded in turn by the same flexible material forming the outer tube.Type: ApplicationFiled: April 20, 2006Publication date: September 28, 2006Applicant: SCIMED LIFE SYSTEMS, INC.Inventors: Timothy Stivland, Elias Khoury
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Publication number: 20020007145Abstract: A catheter having a flexible outer tube and a lubricious inner tube bonded within the flexible outer tube. One catheter has a distal outer tube formed of a substantial portion of a first, flexible material, an inner tube having a lubricious inside wall surface formed of a second, lubricious material, and an outer tube wall surface compatible with heat bonding the inner tube outside wall surface to the outer tube wall surface. A preferred flexible material is polyether block amide (PEBA) and a preferred lubricious material is polyethylene. One catheter utilizing the invention includes a flexible distal outer tube having an orifice through the tube wall and an inner tube inserted through the orifice having a lubricious inner layer surrounded by a tie-layer, surrounded in turn by the same flexible material forming the outer tube.Type: ApplicationFiled: October 23, 1998Publication date: January 17, 2002Inventors: TIMOTHY STIVLAND, ELIAS KHOURY
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Patent number: 5980484Abstract: An intravascular balloon catheter including a dilation balloon is provided. The intravascular balloon catheter includes a shaft assembly including a proximal end, a distal end, and an inflation lumen extending longitudinally therethrough. The dilation balloon is operably coupled proximate the distal end of the shaft assembly, such that an interior chamber of the dilation balloon is in fluid communication with the inflation lumen. In one aspect of the invention, a core wire is disposed within the inflation lumen of the shaft assembly. In another aspect of the invention, a tubular member extends longitudinally over the exterior of the dilation balloon for receiving a guidewire.Type: GrantFiled: February 17, 1998Date of Patent: November 9, 1999Assignee: SciMed Life Systems, Inc.Inventors: Thomas V. Ressemann, Timothy Stivland, David Blaeser
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Patent number: 5718683Abstract: A dilation balloon is provided for an intravascular catheter having an elongated shaft with a proximal portion, a distal portion, and an inflation lumen extending therethrough. In one aspect of the invention, the dilation balloon includes a balloon member having a chamber therein in fluid communication with the inflation lumen. The balloon member defines a portion of a guide wire lumen which coextends with a portion of the balloon member for receiving a guide wire. In another aspect of the invention, a balloon is connected to the distal portion of the catheter shaft and a guide wire lumen is spaced exteriorly from the shaft and coextends with a portion of the balloon. In yet another aspect of the invention, a process for making a dilation balloon includes the step of providing a longitudinal member having a first elongated lumen and a second elongated lumen.Type: GrantFiled: April 19, 1996Date of Patent: February 17, 1998Assignee: SciMed Life Systems, Inc.Inventors: Thomas V. Ressemann, Timothy Stivland, David Blaeser
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Patent number: 5549553Abstract: A dilation balloon is provided for an intravascular catheter having an elongated shaft with a proximal portion, a distal portion, and an inflation lumen extending therethrough. In one aspect of the invention, the dilation balloon includes a balloon member having a chamber therein in fluid communication with the inflation lumen. The balloon member defines a portion of a guide wire lumen which coextends with a portion of the balloon member for receiving a guide wire. In another aspect of the invention, a balloon is connected to the distal portion of the catheter shaft and a guide wire lumen is spaced exteriorly from the shaft and coextends with a portion of the balloon. In yet another aspect of the invention, a process for making a dilation balloon includes the step of providing a longitudinal member having a first elongated lumen and a second elongated lumen.Type: GrantFiled: December 6, 1995Date of Patent: August 27, 1996Assignee: SciMed Life Systems, Inc.Inventors: Thomas V. Ressemann, Timothy Stivland, David Blaeser