Grasping treatment device

Patent metadata

Field	Value
Publication number	US-9687264-B2
Application number	US-201313939685-A
Country	US
Kind code	B2
Filing date	Jul 11, 2013
Priority date	Feb 1, 2012
Publication date	Jun 27, 2017
Grant date	Jun 27, 2017

Abstract

A jaw of the grasping treatment device includes an abutting portion being abutable on a probe treatment portion when the jaw is closed relative to the probe treatment portion, and a separated portion being disposed with a clearance between the separated portion and the probe treatment portion when the abutting portion is in abutment with the probe treatment portion. The jaw includes a distal-side wall portion provided to a distal direction side of the separated portion and protruding toward the probe treatment portion as compared with the separated portion, and a proximal-side wall portion provided to a proximal direction side of the separated portion and which protruding toward the probe treatment portion as compared with the separated portion.

First claim

What is claimed is:

1. A grasping treatment device comprising:
a probe having a distal end and a proximal end, and extending along a longitudinal axis;
a jaw configured to open or close relative to the probe, and including an opposed surface that faces toward a closing direction of the jaw and that is opposed to a distal portion of the probe,
the opposed surface including an abutting surface, a distal separated surface, an intermediate separated surface, and a proximal separated surface,
the distal separated surface, the intermediate separated surface, and the proximal separated surface being continuously arranged along the longitudinal axis,
the abutting surface being configured to abut the probe continuously from a proximal end of the abutting surface to a distal end of the abutting surface along the longitudinal axis when the jaw is closed relative to the probe,
the distal separated surface, the intermediate separated surface, and the proximal separated surface being configured to form a clearance between the jaw and the probe such that the clearance continuously extends from a distal end of the distal separated surface to a proximal end of the proximal separated surface along the longitudinal axis when the abutting surface abuts the probe,
the intermediate separated surface being configured to grasp a blood vessel, and
the intermediate separated surface extending from the abutting surface to a first outer edge of the jaw and from the abutting surface to a second outer edge of the jaw along the entire length of the jaw in an intermediate portion of the jaw, the first outer edge of the jaw being on an opposite side of the jaw from the second outer edge of the jaw,

wherein:
the intermediate separated surface and the abutting surface are continuously arranged in a direction perpendicular to a plane of a direction of motion of the jaw,
each of the distal separated surface, the intermediate separated surface, and the proximal separated surface continuously extends to both the first outer edge of the jaw and the second outer edge of the jaw in the direction perpendicular to the plane of the motion of the jaw,
a length of the intermediate separated surface in a direction along the longitudinal axis is longer than a length of each of the distal separated surface and the proximal separated surface in the direction along the longitudinal axis,
a part of the distal separated surface and a part of the proximal separated surface protrude further toward the probe compared with the intermediate separated surface,
the opposed surface includes a distal stepped surface provided at a boundary between a distal end of the intermediate separated surface and a proximal end of the distal separated surface and facing toward a proximal side, and a proximal stepped surface provided at a boundary between a proximal end of the intermediate separated surface and a distal end of the proximal separated surface and facing toward a distal side, and
the distal stepped surface and the proximal stepped surface are configured to regulate a movement of the grasped blood vessel.

2. The grasping treatment device according to claim 1 , wherein the probe is configured to receive ultrasonic vibrations, and configured to transmit the ultrasonic vibrations from the proximal end to the distal end.

3. The grasping treatment device according to claim 2 , wherein the clearance between the probe and the jaw in the distal separated surface and the proximal separated surface is smaller than the clearance between the probe and the jaw in the intermediate separated surface.

4. The grasping treatment device according to claim 1 , wherein an entirety of the intermediate separated surface forms a flat surface extending along the longitudinal axis.

5. The grasping treatment device according to claim 1 , wherein the probe is configured to flow a high-frequency current.

6. The grasping treatment device according to claim 1 , wherein the jaw includes an electrode portion configured to receive a high-frequency current.

7. The grasping treatment device according to claim 1 , wherein the jaw includes a metallic member that forms the distal separated surface, the intermediate separated surface, and the proximal separated surface.

8. The grasping treatment device according to claim 7 , wherein the jaw includes an abutting member that is made of resin and that forms the abutting surface.

Assignees

• Olympus Corp

Inventors

• Takabayashi Junichi
• Masuda Shinya
• Murakami Eiji

Classifications

• A61B2018/00994

  combining two or more different kinds of non-mechanical energy or combining one or more non-mechanical energies with ultrasound · CPC title

• A61B18/18 Primary

  by applying electromagnetic radiation, e.g. microwaves · CPC title

• A61B17/320092 Primary

  with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw · CPC title

• A61B2018/0063

  Sealing · CPC title

• A61B18/1445 Primary

  at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod · CPC title