SURGICAL OPERATING APPARATUS

• US 20090088667A1
• Filed: 09/28/2007
• Published: 04/02/2009
• Est. Priority Date: 09/28/2007
• Status: Active Grant

• Current Assignee: Olympus Corporation
• Original Assignee: Olympus Medical Systems Corporation (Olympus Corporation)
• Inventors: MASUDA, Shinya
• Granted Patent: US 7,766,929 B2
• Time in Patent Office: Days
• US Class Current: 601/2
• 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 2017/0046 with a releasable handle; with handle and operating part separable for prosthetic joint-implanting tools A61F2/4603
• CPC Class Codes: A61B 2017/2929 with a head rotatable about the longitudinal axis of the shaft
• CPC Class Codes: A61B 2017/294 Connection of actuating rod to jaw, e.g. releasable
• CPC Class Codes: A61B 2017/320094 additional movable means performing clamping operation
• CPC Class Codes: A61B 2017/320095 with sealing or cauterizing means

Abstract

A surgical tool includes a sheath, a probe body, a distal end portion and a proximal end portion. A probe distal end portion is provided at the distal end portion of the probe body, a jaw is rotatably supported on the distal end portion of the sheath and is engaged with the probe distal end portion. A first tubular member a fits on the proximal end portion of the sheath and extends rearward. It has an elongated slit and extends in an axial direction of the sheath. A second tubular member fits in a rear end portion of the first tubular member. A tubular driving member is slidably inserted in the sheath and rotates the jaw. A coupling member including a projection body passes through the second tubular member, includes an engaging portion which is engaged in the slit of the first tubular member.

Claims

1. A surgical operating apparatus comprising:

a sheath having a distal end portion and a proximal end portion;

a shaft-shaped probe body which is inserted in the sheath and has a distal end portion and a proximal end portion, and in which ultrasonic vibration is transmitted;

a probe distal end portion which is provided at the distal end portion of the probe body;

a jaw which is rotatably supported on the distal end portion of the sheath and is engaged with the probe distal end portion;

a first tubular member having a tubular body which is fitted on the proximal end portion of the sheath and extends rearward, and has an elongated slit which is provided in an outer peripheral wall portion of the tubular body and extends in an axial direction of the sheath;

a second tubular member which is fitted in a rear end portion of the first tubular member;

a tubular driving member which is inserted in the sheath slidably in the axial direction of the sheath, and rotates the jaw by sliding movement thereof; and

a coupling member including a projection body projecting outward of the driving member, the projection body being passed through the second tubular member, thus forming a coupling body which couples the driving member and the second tubular member, the coupling member including an engaging portion which is engaged in the slit of the first tubular member, the coupling member coupling the coupling body slidably as one body, relative to the first tubular member, along the slit in the axial direction of the sheath.

2. The surgical operating apparatus according to claim 1, wherein the surgical operating apparatus includes a handle unit which is detachably coupled to the proximal end portion of the sheath,

the handle unit includes a stationary handle and a movable handle which is coupled rotatably about a rotational shaft relative to the stationary handle,

the first tubular member includes a first attachment/detachment section which is detachably coupled to the stationary handle, and

the second tubular member includes a second attachment/detachment section which is detachably coupled to the movable handle.

3. The surgical operating apparatus according to claim 1, wherein the sheath includes, at the proximal end portion thereof, a flare portion which has a greater inside diameter than the other portion thereof, and

seal means for effecting sealing between the sheath and the driving member is provided between the flare portion and the driving member.

4. The surgical operating apparatus according to claim 3, wherein the seal means includes a pair of backup rings, which are paired in a back-and-forth direction along the axial direction of the sheath, and an O ring which is provided between the backup rings so as to be movable in the axial direction of the sheath.

5. The surgical operating apparatus according to claim 1, wherein the second tubular member has a through-hole in which the projection body of the coupling member is passed through, and

the projection body has a threaded portion which is screwed and coupled in the through-hole.

6. The surgical operating apparatus according to claim 1, wherein the second tubular member has a through-hole in which the projection body of the coupling member is passed through, and

the projection body has, at a part of a penetration portion which is passed through the through-hole, a press-fitting portion which is press-fitted in the through-hole.