Jeffrey L Gold

US Patent:

56626223, Sep 2, 1997

Filed:

Apr 4, 1995

Appl. No.:

8/409973

Inventors:

Susana M. Gore - Fort Lauderdale FL
Mark Mueller - Miramar FL
Nicholas Green - Kinnelon NJ
Jeffrey G. Gold - Parkland FL
Peter P. Soltesz - San Jose CA

Assignee:

Cordis Corporation - Miami Lakes FL

International Classification:

A61M 2500

US Classification:

604282

Abstract:

An intravascular catheter carries a helical reinforcement member embedded within at least a portion of the tubular wall of the catheter. The helical reinforcement member comprises a helical first portion having coils of greater pitch than the pitch of helical coils of a second portion. Preferably, the catheter is for insertion into brain arteries, and comprises a flexible tube having an outer diameter of no more that about 0. 05 inch, for example 3 French or smaller. The flexible tube defines outer and inner tubular layers. The inner tubular layer surrounds a catheter lumen and comprises a chemically inert fluorinated polymer such as PTFE. The outer tubular layer comprises at least three longitudinally spaced, connected tubular sections. The sections are of successively increasing flexibility from the proximal toward the distal catheter end. Also, manufacturing methods are disclosed pertaining to increasing the flexibility of a section of the catheter and joining together in abutting relation a pair of dissimilar catheter reinforcement members.

US Patent:

57119090, Jan 27, 1998

Filed:

May 9, 1996

Appl. No.:

8/647205

Inventors:

Susana M. Gore - Fort Lauderdale FL
Mark Mueller - Miramar FL
Nicholas Green - Kinnelon NJ
Jeffrey G. Gold - Parkland FL
Peter P. Soltesz - San Jose CA

Assignee:

Cordis Corporation - Miami Lakes FL

International Classification:

B29C 5308

US Classification:

264320

Abstract:

An intravascular catheter carries a helical reinforcement member embedded within at least a portion of the tubular wall of the catheter. The helical reinforcement member comprises a helical first portion having coils of greater pitch than the pitch of helical coils of a second portion. Preferably, the catheter is for insertion into brain arteries, and comprises a flexible tube having an outer diameter of no more that about 0. 05 inch, for example 3 French or smaller. The flexible tube defines outer and inner tubular layers. The inner tubular layer surrounds a catheter lumen and comprises chemically inert fluorinated polymer such as PTFE. The outer tubular layer comprises at least three longitudinally spaced, connected tubular sections. The sections are of successively increasing flexibility from the proximal toward the distal catheter end. Also, manufacturing methods are disclosed pertaining to increasing the flexibility of a section of the catheter and joining together in abutting relation a pair of dissimilar catheter reinforcement members.

US Patent:

57334005, Mar 31, 1998

Filed:

May 8, 1996

Appl. No.:

8/647019

Inventors:

Susana M. Gore - Fort Lauderdale FL
Mark Mueller - Miramar FL
Nicholas Green - Kinnelon NJ
Jeffrey G. Gold - Parkland FL
Peter P. Soltesz - San Jose CA

Assignee:

Cordis Corporation - Miami Lakes FL

International Classification:

B29C 6554

US Classification:

156158

Abstract:

An intravascular catheter carries a helical reinforcement member embedded within at least a portion of the tubular wall of the catheter. The helical reinforcement member comprises a helical first portion having coils of greater pitch than the pitch of helical coils of a second portion. Preferably, the catheter is for insertion into brain arteries, and comprises a flexible tube having an outer diameter of no more that about 0. 05 inch, for example 3 French or smaller. The flexible tube defines outer and inner tubular layers. The inner tubular layer surrounds a catheter lumen and comprises chemically inert fluorinated polymer such as PTFE. The outer tubular layer comprises at least three longitudinally spaced, connected tubular sections. The sections are of successively increasing flexibility from the proximal toward the distal catheter end. Also, manufacturing methods are disclosed pertaining to increasing the flexibility of a section of the catheter and joining together in abutting relation a pair of dissimilar catheter reinforcement members.