Balloon catheter

Details Balloon catheter Balloon catheter

1986-07-28

1987-12-29

Truluck, Dalton L.

Surgery

Truss

Pad

604 96, A61M 2902

Patent

active

047153784

ABSTRACT:
A balloon catheter having a distal balloon, and a catheter extending from the proximal end of the balloon, out of the body, forming a conduit for balloon inflation fluid, is sized and adapted, with the balloon deflated to a relatively small size, for introduction of the balloon into the body, and the balloon is adapted to be inflated to a relatively larger size by introduction of inflation fluid into the balloon for outside the body via the conduit. The balloon catheter includes a vent disposed at the distal end of the balloon for selectively venting gas above a predetermined pressure from the interior of the balloon while restricting passage of inflation fluid from the balloon at operating pressure. The vent consists of a multi-winding coil extending distally from within the balloon, interstitial spaces generally between the windings of the coil being of a predetermined size selected to permit passage therethrough of gaseous molecules above a predetermined pressure, while restricting throughpassage of larger molecules of inflation fluid.

REFERENCES:
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patent: 3572315 (1971-03-01), Cullen, II
patent: 3854484 (1974-12-01), Jackson
patent: 4307722 (1981-12-01), Evans
patent: 4323071 (1982-04-01), Simpson et al.
patent: 4349033 (1982-09-01), Eden
patent: 4444188 (1984-04-01), Eazell et al.
patent: 4545390 (1985-10-01), Leary
patent: 4561439 (1985-12-01), Bishop et al.
patent: 4582181 (1986-04-01), Samson
patent: 4638805 (1987-01-01), Powell
Advanced Cardiovascular Systems, Advertisement.

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