US 2003/0069595 A1Published application

Surgical punch device

OwnerTrinh D. Phung, Douglas W. Moore +1inventors

InventorsTrinh D. Phung, Douglas W. Moore, Jason LaShun Hamilton

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Abstract

A device for forming openings (holes) in internal bodily tissue is provided. The device includes a cutter defining a longitudinal passageway and a cutting edge. The device also includes an inner core in reciprocally sliding relationship with the cutter having a tissue engagement portion at its distal end. A syringe-like mechanism moves the cutter and the core substantially co-axially between a first position wherein the distal portion of the core extends distally of the cutting edge and a second position wherein the distal portion of the core resides within the passageway. Tissue is sheared as the core and cutter are moved from the first to the second position. The core and cutter are attached to different portions of the syringe-like mechanism such that the longitudinal axes of the cutter passageway, the core member and the activation assembly may deviate (i.e., “float”) relative to one another.

A surgical tissue punch device comprising:

a tissue cutting assembly attached to an activation device;
said tissue cutting assembly including:
(i) a body having a body proximal end portion, a body distal end portion and a longitudinal passageway having a first longitudinal length extending between said body proximal end portion and said body distal end portion, said body distal end portion including a distally facing cutting blade edge adjacent said passageway, and
(ii) an elongate core member having a core proximal end portion, a core distal end portion, and a second longitudinal length greater than said first longitudinal length, said elongate core member being disposed in reciprocally movable relationship with said body in said longitudinal passageway, said core member defining a substantially circumferentially oriented recessed tissue engagement portion in closely spaced relation to said core distal end portion;
said activation device including means for moving said body and said core reciprocally relative to one another between a first position wherein a distal portion of said core including said recessed portion extends substantially longitudinally and distally of said cutting blade edge, and a second position wherein said distal portion of said core resides within said passageway;
wherein said passageway of said body and said core are sized relative to one another such that a portion of at least one bodily tissue layer located in said recessed portion when said tissue cutting assembly is disposed in said first position is sheared away from the tissue adjacent thereto by said cutting blade as said core and said body are moved from said first position to said second position relative to one another;
and
further wherein said core and said body are attached separately to said activation device such that said body and said core may shift radially and/or longitudinally relative to each other and to said activation device.

5 more elements

Facts

Application

09/971,421Filed 5 Oct 2001

Published

10 Apr 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

A61B 17/32053
Excision instruments: punch like cutting instruments, e.g. using a cylindrical or oval knife
A61B 2017/00252
Making holes in the wall of the heart, e.g. laser Myocardial revascularization: for by-pass connections, i.e. connections from heart chamber to…
A61B 2017/1107
For performing anastomosis; Buttons for anastomosis: for blood vessels
A61B 2017/1135
For performing anastomosis; Buttons for anastomosis: end-to-side connections, e.g. T- or Y-connections

Abstract

Claims28