Evertible membrane catheter and method of use

Details Evertible membrane catheter and method of use Evertible membrane catheter and method of use

1988-10-05

1990-08-07

Apley, Richard J.

Surgery

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

Treating material introduced into or removed from body...

604 97, 604 98, 604114, 606 2, 606 7, 606 27, 128756, 128772, A61M 3700

Patent

active

049464400

ABSTRACT:
A catheter for medical or veterinary use is provided which is especially adapted for gentle and pristine introduction into a body cavity or vasculature. The catheter includes an outer and inner tube with a cylindrical membrane connecting distal ends of the two tubes. A fluid may be introduced into an annular space between the tubes to inflate the membrane, which may have a variable thickness to inflate into various configurations within the body cavity. The catheter may be advantageously provided with a guide wire for directing the catheter during insertion into the body cavity by diverting the distal end of the outer tube. The invention hereof also includes a method of using the catheter including the steps of inserting, directing and locating the catheter, extending inner tube beyond the outer tube, isolating the body cavity or vessel and then withdrawing the catheter from the body cavity or vessel.

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