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Stephen John Tiernan

from Oceanside, CA
Age ~60

Stephen Tiernan Phones & Addresses

  • 3952 Baja Vista Dr, Oceanside, CA 92054
  • Sherman Oaks, CA
  • Santa Clara, CA
  • Palo Alto, CA
  • Bellingham, MA
  • Boston, MA
  • Whittier, CA
  • San Diego, CA
  • Fontana, CA

Publications

Us Patents

Catheter Member With Bondable Layer

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US Patent:
6530938, Mar 11, 2003
Filed:
Dec 9, 1999
Appl. No.:
09/458361
Inventors:
Jeong Soo Lee - Diamond Bar CA
Kenneth L. Wantink - Temecula CA
Alan A. Tannier - Temecula CA
Stephen J. Tiernan - Palo Alto CA
Assignee:
Advanced Cardiovascular Systems, Inc. - Santa Clara CA
International Classification:
A61M 2900
US Classification:
606194, 606191
Abstract:
The invention is directed to a catheter formed at least in part of a multilayered member having a first layer which is fusion bondable to another catheter component such as the skirt of an inflatable balloon and a second layer which is adjacent the first layer having a melting point greater than the first layer so that the multilayered member of the catheter is not deformed when the other catheter component is fusion bonded to the first layer of the multilayered member. The second layer is preferably lubricious in nature. In one embodiment of the invention, the multilayered member is a tubular element with the lubricious second layer defining an inner lumen extending within the tubular element. The outer layer of the tubular member may extend beyond the distal end of the inner layer and form a non-traumatic distal tip. Alternatively, a flexible non-traumatic distal tip may be fusion bonded to at least the outer layer of the multilayered tubular member.

Co-Extruded Taper Shaft

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US Patent:
6579484, Jun 17, 2003
Filed:
Dec 16, 1999
Appl. No.:
09/464932
Inventors:
Stephen J. Tiernan - Palo Alto CA
Jeong S. Lee - Diamond Bar CA
Mina W. B. Chow - Campbell CA
Stephen G. Schaible - Anaheim CA
Assignee:
Advanced Cardiovascular Systems, Inc. - Santa Clara CA
International Classification:
B29C 4706
US Classification:
26417316, 2642094, 2642095
Abstract:
An apparatus and method for providing a co-extruded, tapered multi-layer shaft. A co-extruded, tapered multi-layer shaft may be fabricated by selecting a first material for the inner layer of the shaft and a second material for the outer layer of the shaft. The first and second materials are then co-extruded by a co-extrusion system including a puller with programmable tapering capabilities. The system forms a hollow tubing having an inner layer and an outer layer, wherein the tubing has the desired tapered characteristics. The result is a tapered tubular shaft having an inner layer and an outer layer.

Method Of Forming A Thin Walled Member By Extrusion And Medical Device Produced Thereby

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US Patent:
6692511, Feb 17, 2004
Filed:
Feb 2, 2001
Appl. No.:
09/776068
Inventors:
Stephen J. Tiernan - Palo Alto CA
Assignee:
Advanced Cardiovascular Systems, Inc. - Santa Clara CA
International Classification:
G02F 11335
US Classification:
606194
Abstract:
A method of forming a thin-walled polymeric tubular member for an intralumenal device, and the member produced thereby. The thin-walled tubular member extruded using the method of the invention is suitable for use a sleeve for a catheter shaft or balloon. The thin-walled tubular member has a single wall thickness of not greater than about 0. 003 inch (0. 0076 cm). In the method of the invention, the thin-walled tubular member is formed by co-extruding a thin-walled first polymer layer with a removable second polymer layer, and the two layers are separated by dissolution or physical removal of the second layer, to leave the first layer, with the first polymer layer forming the thin-walled tubular member. Because the method of the invention involves co-extruding a removable second polymer layer along with the thin-walled first polymer layer, conventional tooling dimensions in the extruder may be used.

Co-Extruded Taper Shaft

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US Patent:
7037295, May 2, 2006
Filed:
May 20, 2003
Appl. No.:
10/442554
Inventors:
Stephen J. Tiernan - Palo Alto CA, US
Jeong S. Lee - Diamond Bar CA, US
Mina W. B. Chow - Campbell CA, US
Stephen G. Schaible - Anaheim CA, US
Assignee:
Advanced Cardiovascular Systems, Inc. - Santa Clara CA
International Classification:
A61M 25/00
US Classification:
604264, 604525, 606194, 428 357, 428 3691
Abstract:
An apparatus and method for providing a co-extruded, tapered multi-layer shaft. A co-extruded, tapered multi-layer shaft may be fabricated by selecting a first material for the inner layer of the shaft and a second material for the outer layer of the shaft. The first and second materials are then co-extruded by a co-extrusion system including a puller with programmable tapering capabilities. The system forms a hollow tubing having an inner layer and an outer layer, wherein the tubing has the desired tapered characteristics. The result is a tapered tubular shaft having an inner layer and an outer layer.

Catheter Member With Bondable Layer

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US Patent:
60105216, Jan 4, 2000
Filed:
Nov 25, 1997
Appl. No.:
8/977815
Inventors:
Jeong Soo Lee - Diamond Bar CA
Kenneth L. Wantink - Temecula CA
Alan A. Tannier - Temecula CA
Stephen J. Tiernan - Palo Alto CA
Assignee:
Advanced Cardiovasular Systems, Inc. - Santa Clara CA
International Classification:
A61B 1700
US Classification:
606194
Abstract:
The invention is directed to a catheter formed at least in part of a multilayered member having a first layer which is fusion bondable to another catheter component such as the skirt of an inflatable balloon and a second layer which is adjacent the first layer having a melting point greater than the first layer so that the multilayered member of the catheter is not deformed when the other catheter component is fusion bonded to the first layer of the multilayered member. The second layer is preferably lubricious in nature. In one embodiment of the invention, the multilayered member is a tubular element with the lubricious second layer defining an inner lumen extending within the tubular element. The outer layer of the tubular member may extend beyond the distal end of the inner layer and form a non-traumatic distal tip. Alternatively, a flexible non-traumatic distal tip may be fusion bonded to at least the outer layer of the multilayered tubular member.

Method Of Forming A Thin Walled Member By Extrusion And Medical Device Produced Thereby

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US Patent:
62248030, May 1, 2001
Filed:
Apr 28, 1999
Appl. No.:
9/301151
Inventors:
Stephen J. Tiernan - Palo Alto CA
Assignee:
Advanced Cardiovascular Systems, Inc. - Santa Clara CA
International Classification:
B29C 6902
B29C 4706
US Classification:
264166
Abstract:
A method of forming a thin-walled polymeric tubular member for an intralumenal device, and the member produced thereby. The thin-walled tubular member extruded using the method of the invention is suitable for use a sleeve for a catheter shaft or balloon. The thin-walled tubular member has a single wall thickness of not greater than about 0. 003 inch (0. 0076 cm). In the method of the invention, the thin-walled tubular member is formed by co-extruding a thin-walled first polymer layer with a removable second polymer layer, and the two layers are separated by dissolution or physical removal of the second layer, to leave the first layer, with the first polymer layer forming the thin-walled tubular member. Because the method of the invention involves co-extruding a removable second polymer layer along with the thin-walled first polymer layer, conventional tooling dimensions in the extruder may be used.
Stephen John Tiernan from Oceanside, CA, age ~60 Get Report