Fluid aspiration device and technique for reducing the risk of c

Details Fluid aspiration device and technique for reducing the risk of c Fluid aspiration device and technique for reducing the risk of c

1977-07-22

1980-12-23

Michell, Robert W.

Surgery

Truss

Pad

128276, A61B 1734, A61M 100

Patent

active

042404339

ABSTRACT:
A device and technique utilized in body fluid aspiration which minimizes the risk of complications that normally may result from accidental puncture of internal organs. The device includes a sharp-tipped fluid aspiration needle which features cushioning means, preferably in the form of an inflatable balloon, positionable between the sharp tip of the needle and the internal organs during the aspiration procedure. The inflatable balloon is preferably connected to an end of a cannula which is, in turn, slidably positionable within the hollow needle. The cannula is in a retracted position in the needle upon insertion of the latter through the body. When the fluid is located, the cannula is advanced to a locked position beyond the sharp tip of the needle, whereupon the balloon is inflated and the fluid aspiration commenced. The inflated balloon and extended cannula ablate the sharp edge of the needle as well as minimize movement thereof during the procedure to substantially reduce the risk of accidental puncture.

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