Treatment apparatus and treatment device for surgical treatments using ultrasonic vibration

• US 7,799,045 B2
• Filed: 03/30/2005
• Issued: 09/21/2010
• Est. Priority Date: 03/30/2004
• Status: Active Grant

• Current Assignee: Olympus Corporation
• Original Assignee: Olympus Corporation
• Inventors: Masuda, Shinya
• Primary Examiner(s): Le; Long V
• Assistant Examiner(s): HOFFA, ANGELA MARIE
• Application Number:
  US11/093,601
• Publication Number:
  US 20050234338A1
• Time in Patent Office: 2,001 Days
• Field of Search: 600/439, 601/2, 601/3, 606/169
• 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 2017/320093 additional movable means performing cutting operation
• CPC Class Codes: A61B 2017/320095 with sealing or cauterizing means

Abstract

An ultrasonic treatment device comprises a transducer unit, probe unit, and a main unit. The transducer unit comprises an ultrasonic transducer generating ultrasonic vibration in response to supply of power. The probe unit has a treatment member at a distal end thereof. The probe unit is detachably loaded to the transducer unit, and is equipped with an ultrasonic probe transmitting the ultrasonic vibration to the distal end of the treatment member when the transducer unit is loaded to the probe unit. The main unit is manually grasped by an operator. The probe unit with the transducer unit loaded thereto is detachably loaded to the main unit. The main unit has a cylindrical insert through which the ultrasonic probe is inserted to have the treatment member protruded outwardly when the probe unit is loaded. The main unit further has an outer sheath detachably covering an outer surface of the insert.

Claims

1. An ultrasonic treatment device comprising:

a transducer unit equipped with an ultrasonic transducer generating ultrasonic vibration in response to supply of power;

a probe unit configured to have a treatment member at a distal end thereof, detachably loaded to the transducer unit, and equipped with an ultrasonic probe transmitting the ultrasonic vibration to the distal end of the treatment member when the transducer unit is loaded to the probe unit;

a main unit which is adapted to be manually grasped by an operator, to which the probe unit with the transducer unit loaded thereto is detachably loaded, and which has a cylindrical insert through which the ultrasonic probe is inserted and positioned within, to have the treatment member protruded outwardly when the probe unit is loaded and an outer sheath detachably covering an outer surface of the insert;

an electric connector disposed at a base end of the outer sheath and electrically connected to a power source for electric cautery; and

an electric connecting portion connected to the electric connector and configured to allow the electric connector to be connected electrically to the ultrasonic probe when the outer sheath is loaded to the main unit; and

wherein

the electric connecting portion is located to contact a portion of the ultrasonic probe at a node of vibration thereof, when the outer sheath is loaded into the main unit.

2. The device according to claim 1, wherein the outer sheath is provided with a cylindrical sheath body and a connector detachably connecting the cylindrical sheath body to the main unit.

3. The device according to claim 2, wherein an inner diameter of the cylindrical sheath body is larger than an outer diameter of the insert, whereby the ultrasonic probe of the probe unit with the transducer unit loaded thereto are insertable into the cylindrical sheath body.

4. The device according to claim 1, wherein the treatment member of the ultrasonic probe comprises a curved portion bent to deviate from an axial direction of the ultrasonic probe.

5. The device according to claim 4, wherein the curved portion comprises a hook portion bent to deviate from the axial direction and is able to hook a target to be treated.

6. The device according to claim 1, wherein the main unit comprises an operation member to which the probe unit with the transducer unit loaded thereto is detachable and which is adapted to be grasped by the operator,

a cylindrical inner sheath providing part of the insert,

a jaw rotatably supported to face the treatment member of the ultrasonic probe at a distal end of the inner sheath and adapted to grip living tissue of the subject together with the treatment member, and

an operational force transfer member linking the jaw and the operation member, and configured to move forward and backward along an axial direction of the inner sheath, and to transmit to the jaw an operation force generated by the operation member.

7. An ultrasonic treatment device comprising:

a main unit having an operation member adapted to be grasped and operated by an operator;

an ultrasonic transducer;

a treatment member;

an ultrasonic probe detachably loaded to the main unit and configured to transmit ultrasonic vibration generated by the ultrasonic transducer to the treatment member, the ultrasonic transducer being located at a base end of the probe and the treatment member being located at a distal end of the probe;

an inner sheath approximately cylindrically shaped, arranged in the main unit, and configured to allow the ultrasonic probe to be inserted therethrough and positioned within, when the ultrasonic probe is loaded to the main unit;

a jaw rotatably supported to face the treatment member of the ultrasonic probe at a distal end of the inner sheath when the ultrasonic probe is loaded to the main unit and formed to grip living tissue of the subject together with the treatment member;

an operational force transfer member linking the jaw and the operation member, and configured to move forward and backward on a surface of the inner sheath along an axial direction of the inner sheath, and to transmit to the jaw an operation force generated by the operation member;

an outer sheath detachably attached to the main unit to cover an outer surface of the inner sheath and the operational force transfer member; and

an electric connector disposed at a base end of the outer sheath and electrically connected to a power source for electric cautery.

8. The device according to claim 7, wherein the outer sheath is provided with a cylindrical sheath body and a connector detachably connecting the cylindrical sheath body to the main unit.

9. The device according to claim 8, wherein the inner sheath comprises a back-and-forth movement limiting mechanism preventing the operational force transfer member from moving back and forth along a direction deviating from an axial direction of the inner sheath.

10. The device according to claim 9, wherein

the operational force transfer member comprises a plate-like slit portion formed along an axial direction of the operational force transfer member and

the back-and-forth movement limiting mechanism comprises a limit pin arranged in the slit portion and formed to prevent the operational force transfer member from moving back and forth along the direction deviating from the axial direction of the inner sheath.

11. The device according to claim 9, wherein the back-and-forth movement limiting mechanism comprises a limit band arranged on an outer face of the inner sheath and configured to limit the operational force transfer member from moving in a direction perpendicular to an axial direction of the operational force transfer member.

12. The device according to claim 11, wherein the operational force transfer member comprises a plate-like member movable back and forth along the axial direction of the inner sheath.

13. The device according to claim 7, wherein the outer sheath is provided with

an electric connecting portion connected to the electric connector and configured to allow the electric connector to be connected electrically to the ultrasonic probe when the outer sheath is loaded to the main unit.

14. The device according to claim 13, wherein the electric connecting portion is located to contact a portion of the ultrasonic probe at a node of vibration thereof, when the outer sheath is loaded to the main unit.

15. An ultrasonic treatment device comprising:

a main unit adapted to be grasped and operated by an operator; and

a probe unit detachably loaded to the main unit and formed to transmit ultrasonic vibration from a base end of the probe unit to a distal end of the probe unit, the ultrasonic vibration being generated by an ultrasonic transducer and a treatment member being disposed at the distal end of the probe unit,

wherein the main unit comprises

an inner sheath through which the probe is inserted and positioned within, when the probe unit is loaded to the main unit,

a jaw rotatably supported to face the treatment member at a distal end of the inner sheath and formed to grip living tissue of the subject together with the treatment member,

an operation member disposed at a base end of the inner sheath and adapted to be operated by the operator,

an operational force transfer member linking the jaw and the operation member, and configured to move forward and backward on a surface of the inner sheath along an axial direction of the inner sheath, and to transmit to the jaw an operation force generated by the operation member;

an outer sheath detachably attached to the main unit to cover an outer surface of the inner sheath,

an electric connector disposed at a base end of the outer sheath and electrically connected to a power source for electric cautery,

an electric connecting portion connected to the electric connector and configured to allow the electric connector to be connected electrically to the ultrasonic probe when the outer sheath is loaded to the main unit, and

the electric connecting portion being configured to contact a portion of the ultrasonic probe at a node of vibration thereof, when the outer sheath is loaded to the main unit.

16. The device according to claim 15, wherein the outer sheath is provided with a cylindrical sheath body and a connector detachably connecting the cylindrical sheath body to the main unit.

17. A treatment apparatus comprising:

a probe comprising an energy transmitting member and a treatment member and being configured to enable physical energy to be transmitted to the treatment member through the energy transmitting member to allow the treatment member to medically treat living tissue of a subject to be treated;

a device movably supported near to the treatment member by the probe and formed to be in charge of a cooperative operation for the living tissue together with the probe;

an operation member operable to move the device from or toward the treatment member;

a first sheath which links the device and the operation member and through which the energy transmitting member is inserted and positioned within;

an operational force transfer member linking the device and the operation member, movably disposed along an outer surface of the first sheath, and effective to transmit an operation force from the operation member to the device;

a second sheath detachably loaded to the operation member to cover the first sheath as well as the operation force transfer member,

an electric connector disposed at a base end of the second sheath and electrically connected to a power source for electric cautery,

an electric connecting portion connected to the electric connector and configured to allow the electric connector to be connected electrically to the probe when the second sheath is loaded, and

the electric connecting portion being configured to contact a portion of the energy transmitting member at a node of vibration thereof, when the second sheath is loaded.

18. The treatment apparatus according to claim 17, wherein

the physical energy is ultrasonic vibration energy,

the probe is an ultrasonic probe,

the device is a jaw supported to face the treatment member, and configured to open and close from and toward the treatment member, and to grip living tissue of the subject together with the ultrasonic probe, and

the operation member is configured to control opening and closing the jaw from and toward the treatment member.