Intravascular catheter with a nontraumatic distal tip

Details Intravascular catheter with a nontraumatic distal tip Intravascular catheter with a nontraumatic distal tip

1991-06-06

1993-08-10

Rosenbaum, C. Fred

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604264, 128658, A61M 2500

Patent

active

052344169

ABSTRACT:
An intravascular catheter such as a guiding catheter of composite construction having a nontraumatic distal tip comprising a proximal elastomeric tubular element and a distal elastomeric tubular element formed of softer material that the proximal section. The proximal tubular section of the distal tip preferably has a radiopaque material incorporated therein to enable the distal tip to be fluoroscopically observable when in place within a patient. The shaft of the catheter, which exhibits excellent torquability and pushability, is formed with a very thin wall. The catheter shaft includes an inner tubular member of braided polymeric fibrous strands impregnated with a thermoset polyurethane and having an outer jacket or coating of thermoplastic polyurethane secured to the braided tubular member. In some embodiments it is preferred to include a lubricous liner within the braided tubular member.

REFERENCES:
patent: 4425919 (1984-01-01), Alston, Jr. et al.
patent: 4636346 (1987-01-01), Gold et al.
patent: 4690175 (1987-09-01), Ouchi et al.
patent: 4863442 (1989-09-01), DeMello et al.
patent: 4898591 (1990-02-01), Jang et al.
patent: 5037407 (1991-08-01), Gold et al.
patent: 5045072 (1991-09-01), Castillo et al.

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