Punch for opening passages between two compartments

Details Punch for opening passages between two compartments Punch for opening passages between two compartments

1993-01-21

1995-04-04

Pellegrino, Stephen C.

Surgery

Instruments

Cutting, puncturing or piercing

604164, A61B 1732

Patent

active

054033381

ABSTRACT:
A punch for opening passages between two compartments comprises an outer hollow tube and an inner needle tube. The outer hollow tube has a sharp distal edge constituting a circular knife. The needle tube is provided with screw actuating member at a proximal end thereof and a bevelled tip at a distal end thereof. A screw mechanism is located upon a distal end of the needle tube, and the screw mechanism is connected to a cutting disc. The mechanism is screw-actuated by the actuating member. The punch is particularly suitable in cardiac surgery and cardiology as a cardiac catheter and in opening the inter-atrial septum of babies.

REFERENCES:
patent: 4018228 (1977-04-01), Goosen
patent: 4191191 (1980-04-01), Auburn
patent: 4216776 (1980-08-01), Downie et al.
patent: 5009643 (1991-04-01), Reich et al.
patent: 5129913 (1992-07-01), Ruppert
patent: 5139503 (1992-08-01), Kantrowitz et al.
patent: 5192294 (1993-03-01), Blake, III
patent: 5242427 (1993-09-01), Bilweis
patent: 5258003 (1993-11-01), Ciaglia et al.

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