Ultrasonic surgical instrument with finger actuator

• US 20020103496A1
• Filed: 01/29/2001
• Published: 08/01/2002
• Est. Priority Date: 01/29/2001
• Status: Active Grant

• Current Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Original Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Inventors: Miklautsch, Paul R., Harper, Richard M.
• Granted Patent: US 6,500,188 B2
• Time in Patent Office: Days
• US Class Current: 606/169
• CPC Class Codes: A61B 17/2909 Handles
• CPC Class Codes: A61B 2017/0042 with special provisions for gripping
• CPC Class Codes: A61B 2017/2931 with releasable head
• CPC Class Codes: A61B 2017/320094 additional movable means performing clamping operation

Abstract

An ultrasonic surgical instrument having a handle with a finger actuator, and more particularly, an ultrasonic surgical device adapted to be held by a surgeon and fingers-operated with precise movements while opening and closing an ultrasonic instrument while meeting the ergonomic requirements of the surgeon with regard to comfort and imparting the surgeon with an enhanced dextral control for easy maneuverability of the instrument. The instrument incorporates a thimble-shaped lever at the distal end of the handle for actuating the clamp arm of the ultrasonic surgical instrument, and votator structure for selective rotation of the surgical device whereby the ergonomic thimble-shaped lever and pencil grip provide the physician with an improved degree of control, greater comfort in manipulating the instrument, and the ability to perform blunt dissections.

Claims

1. An ultrasonic surgical instrument, comprising:

an end effector including relatively movable blade and clamp means for the engagement of tissue located therebetween;

an elongated shaft structure having a first end operatively connected to said end effector;

a handle portion for receiving a second distal end of said elongated shaft structure,

said second distal end of said elongated shaft structure being connected to operative means in said handle for imparting movement to said end effector,

said handle portion including first finger-operated means for imparting selective clamping and releasing movement to said blade and clamp means, and second finger-operated means for imparting selective rotational displacement to said end effector.

2. An ultrasonic surgical instrument as claimed in claim 1, wherein said handle portion has a generally cylindrical configuration, said elongated shaft structure extending from one end of said handle portion in coaxial relationship therewith, said first and second finger-operated means being spaced about the cylindrical circumference of said handle portion.

3. An ultrasonic surgical instrument as claimed in claim 2, wherein said first finger-operated means comprises a pivotable lever hingedly connected to said handle portion, whereby selective upward and downward pivoting of said lever respectively, imparts closing and opening movements between the clamp and blade means of said end effector so as to selectively engage and release tissue located therebetween.

4. An ultrasonic surgical instrument as claimed in claim 3, wherein said lever has an essentially hollow thimble-shaped configuration to facilitate insertion therein of the index finger of a user gripping the handle portion in a pencil-like manner.

5. An ultrasonic surgical instrument as claimed in claim 4, wherein said thimble-shaped lever is constituted of a slip-resistant material so as to prevent unintended slippage of the finger of the user therefrom during operation thereof.

6. An ultrasonic surgical instrument as claimed in claim 5, wherein said slip-resistant material is constituted of a plastic material.

7. An ultrasonic surgical instrument as claimed in claim 2, wherein two indents are formed one each in the cylindrical surface of said handle portion on opposite sides of and rearwardly of the location of said first finger-operated means, said indents each receiving the second finger-operated means.

8. An ultrasonic surgical instrument as claimed in claim 7, wherein said second finger-operated means in each of said indents are operatively connected to actuator means for imparting a predetermined selective rotational displacement to said end effector and blade and clamp means about an axis extending coaxially with said elongated shaft structure and cylindrical handle portion.

9. An ultrasonic surgical instrument as claimed in claim 8, wherein said blade and clamp means are rotatable through an angle of up to 360°

about said axis in response to actuation of said second-finger operated means.

10. An ultrasonic surgical instrument as claimed in claim 8, wherein said second finger-operated means comprise a rotator arrangement responsive to actuation by, respectively, the thumb and ring finger of a user while holding the handle portion in a pencil-like grip.

11. An ultrasonic surgical instrument as claimed in claim 10, wherein said first and said second finger-operated means are separately or simultaneously actuatable by a user holding the handle portion in a pencil-like grip.

12. An ultrasonic surgical instrument as claimed in claim 2, wherein said handle portion has a bulbous enlarged end portion mounting said first finger-operated means so as to impart an ergonomic configuration to said handle portion increasing the comfort level of a user of the instrument during protracted procedures.