Intravascular device utilizing fluid to extract occlusive materi

Details Intravascular device utilizing fluid to extract occlusive materi Intravascular device utilizing fluid to extract occlusive materi

1996-05-24

1998-12-01

Coggins, Wynn Wood

Surgery

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

Material introduced into and removed from body through...

604 96, A61M 100

Patent

active

058430229

ABSTRACT:
An intravascular device and associated system which utilizes pressurized fluid to extract occlusive material. The device and system includes several unique features which provide desirable advantages over prior art devices. For example, the device is particularly suitable for removing occlusive material which is diffuse, friable, grumous-like, paste-like, granular, and/or chunky. The device includes independently movable fluid input and fluid output tubes and may be advanced over a guide wire. The fluid port holes are located immediately adjacent the distal end of the fluid output tube so as to engage the occlusive material without the need to first traverse the occlusive material with the device. The system utilizes a unique constant volume pump and associated pressure sensors to maintain balanced flow and immediately detect and correct conditions which may cause clinical complications.

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