SURGICAL OPERATING APPARATUS

• US 20090248051A1
• Filed: 03/28/2008
• Published: 10/01/2009
• Est. Priority Date: 03/28/2008
• Status: Active Grant

• Current Assignee: Olympus Corporation
• Original Assignee: Olympus Medical Systems Corporation (Olympus Corporation)
• Inventors: Masuda, Shinya
• Granted Patent: US 8,048,074 B2
• Time in Patent Office: Days
• US Class Current: 606/169
• CPC Class Codes: A61B 17/320092 with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw
• CPC Class Codes: A61B 18/1445 at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod
• CPC Class Codes: A61B 2017/320095 with sealing or cauterizing means

Abstract

A surgical operating apparatus includes an ultrasonic treatment section which performs ultrasonic treatment on a living tissue, and a high-frequency treatment section which performs high-frequency treatment on the living tissue, and includes a narrow width part which is provided on at least one of mutually opposed surfaces of a first electrode portion of a first grasping member and a second electrode portion of a second grasping member. The narrow width part is configured to be disposed at a position where the second grasping member does not easily suffer a stress due to ultrasonic vibration when the living tissue is grasped between the second grasping member and the first grasping member, and to make a distance between the mutually opposed surfaces of the first electrode portion and the second electrode portion narrower than a distance at other positions.

Claims

1. A surgical operating apparatus including an ultrasonic treatment section which performs ultrasonic treatment on a living tissue, and a high-frequency treatment section which performs high-frequency treatment on the living tissue,

wherein the ultrasonic treatment section comprises:

a first grasping member;

a second grasping member which is provided to be openable/closable relative to the first grasping member, the living tissue being grasped between the first grasping member and the second grasping member;

an ultrasonic vibration portion which is provided in the first grasping member and is connected to an ultrasonic transducer; and

a push portion which is provided on the second grasping member, is opposed to the ultrasonic vibration portion, and pushes the living tissue between the push portion and the ultrasonic vibration portion,

the ultrasonic treatment section performs the ultrasonic treatment on the living tissue between the ultrasonic vibration portion and the push portion, and

the high-frequency treatment section comprises;

a first electrode portion which is provided on the first grasping member;

a second electrode portion which is provided on the second grasping member, and is opposed to the first grasping member, the living tissue, which is grasped between the second electrode portion and the first grasping member, being subjected to treatment between the second electrode portion and the first electrode portion; and

a narrow width part which is provided on at least one of mutually opposed surfaces of the first electrode portion and the second electrode portion, the narrow width part being configured to be disposed at a position where the first grasping member does not easily suffer a stress due to ultrasonic vibration when the living tissue is grasped between the second grasping member and the first grasping member, and to make a distance between the mutually opposed surfaces of the first electrode portion and the second electrode portion narrower than a distance at other positions.

2. The surgical operating apparatus according to claim 1, wherein the narrow width part is a projecting electrode portion which is formed at a part of the second electrode portion in such a manner as to narrow a distance between the first electrode portion and the second electrode portion.

3. The surgical operating apparatus according to claim 2, wherein the second electrode portion includes a metallic electrode body and a pad member which is formed of an insulator attached to the electrode body, and

the pad member includes an engaging groove for alignment between the second electrode portion and the first electrode portion, the engaging groove being with the first electrode portion.

4. The surgical operating apparatus according to claim 3, wherein the projecting electrode portion is a projection portion which is provided on that surface of the electrode body, which is opposed to the first electrode portion, so as to project toward the first electrode portion in such a manner as to narrow the distance between the first electrode portion and the second electrode portion in a state in which the first electrode portion is engaged in the engaging groove of the pad member, the projection portion forming a point of occurrence of a spark when the pad member is worn.

5. The surgical operating apparatus according to claim 4, wherein the projection portion is configured such that a separate projection portion forming member is fixed to the electrode body.

6. The surgical operating apparatus according to claim 4, wherein the projection portion is formed integral with the electrode body.

7. The surgical operating apparatus according to claim 1, wherein the narrow width part is a projecting electrode portion which is formed at a part of the first electrode portion in such a manner as to narrow a distance between the first electrode portion and the second electrode portion.

8. The surgical operating apparatus according to claim 7, wherein the second electrode portion includes a metallic electrode body and a pad member which is formed of an insulator attached to the electrode body,

the pad member includes an engaging groove for alignment between the second electrode portion and the first electrode portion, the engaging groove being engaged with the first electrode portion, and

the projecting electrode portion is a projection portion which is provided on that surface of the first electrode portion, which is opposed to the electrode body of the second electrode portion, so as to project toward the second electrode portion in such a manner as to narrow the distance between the first electrode portion and the second electrode portion in a state in which the first electrode portion is engaged in the engaging groove of the pad member.

9. The surgical operating apparatus according to claim 1, wherein the first grasping member has a center axis, a distal end portion and a proximal end portion, the first electrode portion including a first curved-shaped portion which is curved relative to an axial direction of the center axis, and

the second grasping member includes a second curved-shaped portion which is curved in a curved shape corresponding to the first curved-shaped portion.