Flexible tubular member for catheter construction

Details Flexible tubular member for catheter construction Flexible tubular member for catheter construction

1989-03-31

1990-10-02

Pellegrino, Stephen C.

Surgery

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

Treating material introduced into or removed from body...

604280, 606194, A61N 2510

Patent

active

049604104

ABSTRACT:
A catheter having a two-part tubular member that defines a passageway which extends completely through the catheter. One part of the tubular member is a relatively stiff tube having a reduced wall thickness at its distal end that is spirally cut to increase its flexibility. A more flexible sheath covers the reduced thickness, distal portion of the relatively stiff tube to insure that the tubular member can hold pressure. A preferred flexible sheath or tube is constructed using a biaxially oriented polymer such as nylon or polyethylene.

REFERENCES:
patent: 4195637 (1980-04-01), Gruntzig et al.
patent: 4202346 (1980-05-01), Granier
patent: 4323071 (1982-04-01), Simpson et al.
patent: 4362150 (1982-12-01), Lombardi et al.
patent: 4385635 (1983-05-01), Ruiz
patent: 4597755 (1986-07-01), Samson et al.
patent: 4787399 (1988-11-01), Bonello et al.
patent: 4798586 (1989-01-01), Stevens

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