Catheter for even distribution of therapeutic fluids

Details Catheter for even distribution of therapeutic fluids Catheter for even distribution of therapeutic fluids

1989-01-30

1991-06-04

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

604280, 604264, 604164, 138115, A61M 3100

Patent

active

050210440

ABSTRACT:
A multilumen vascular catheter for the delivery of therapeutic fluids, e.g., containing thrombolytic agents, to a patient's blood vessel. The catheter has a plurality of flow passageways in the wall of the outer tubular member in which the discharge openings thereof increase in diametrical dimensions so that a desired, e.g., uniform, flow of treatment fluid is delivered exteriorly of the catheter body. The flow passageways preferably are formed by means of lasers. A first rectangularly shaped passageway is formed in the catheter wall and then a second rectangularly shaped hole is made in the wall, overlapping the first hole to form the final rectangular shape. The catheter is particularly adapted to deliver small quantities of thrombolytic agents, such as urokinase, streptokinase, and tissue plasminogen activator.

REFERENCES:
patent: 3888249 (1975-06-01), Spencer
patent: 4299226 (1981-11-01), Banka
patent: 4406656 (1983-09-01), Hattler et al.
patent: 4717379 (1988-01-01), Ekholmer
patent: 4748984 (1988-06-01), Patel
patent: 4782834 (1978-11-01), Maguire et al.
patent: 4795439 (1989-01-01), Guest
patent: 4801297 (1989-01-01), Mueller

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