Endoscopic surgical instrument for releasably grasping a curved needle

• US 5,222,962 A
• Filed: 04/23/1992
• Issued: 06/29/1993
• Est. Priority Date: 04/23/1992
• Status: Expired due to Fees

• Current Assignee: Stephen S. Burkhart
• Original Assignee: Stephen S. Burkhart
• Inventors: Burkhart, Stephen S.
• Primary Examiner(s): Pellegrino, Stephen C.
• Assistant Examiner(s): SCHMIDT, JEFFREY
• Application Number:
  US07/872,548
• Time in Patent Office: 432 Days
• Field of Search: 606/205-209, 606/139, 606/147, 606/148, 81/418, 81/421, 81/302
• US Class Current: 606/148
• CPC Class Codes: A61B 17/0469 Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery
• CPC Class Codes: A61B 17/282 Jaws
• CPC Class Codes: A61B 17/2909 Handles
• CPC Class Codes: A61B 2017/06019 by means of a suture-receiving lateral eyelet machined in the needle lateral opening for attaching suture to suture anchor A61B2017/0414
• CPC Class Codes: A61B 2017/2837 with a locking ratchet

Abstract

An endoscopic surgical instrument for releasably grasping a curved needle, the instrument employing a handle at a first end of a shaft, the handle for operating a set of opposed jaws at a second end of the shaft. The jaws are serrated and have a channel through the top jaw and an arcuate groove in the top surface of the bottom jaw. The nose of the jaws is slotted to receive the forward portion of the curved needle while the central portion of the curved needle rests in the groove in the top surface of the bottom jaw, and the rear portion of the curved needle extends through the channel. With the jaws compressed and holding the needle in place, the surgeon may then insert the combination through a canulus to suture the tissue at a remotely-located operation site.

Claims

1. A grasping instrument for arthroscopic surgical use in externally manipulating a curved needle between the outside of a patient and a remote operation site, the instrument comprising:

a pair of jaws, said pair comprising a first jaw and a second jaw, the first jaw having a nose at the front end thereof and an articulation point at the rear end thereof for articulation with respect to the second jaw, the first jaw having an outer surface with a top portion, front portion, and side portions and having an inner surface, the second jaw being similar in external dimensions to the first jaw and having a nose at the front end thereof, the second jaw having an outer surface with a top portion, a front portion, and side portions and an inner surface, wherein the first jaw contains a channel therethrough from the top surface of the first jaw through to the inner surface of the first jaw;

a shaft with said pair of jaws operatively connected thereto at a first end thereof;

a pair of handles operatively connected to the second end of said shaft; and

means for opening and closing said jaws;

wherein the channel of the first jaw of said pair of jaws is dimensioned to receive at least a rear portion of a curved needle therethrough, said jaws capable of securely grasping the needle so received, wherein the inner surface of the second jaw of said pair of jaws has a longitudinal groove coincident with the longitudinal axis of the second jaw and dimensioned to receive a portion of the curved needle therein when said curved needle is in the channel and is being held by the grasping device, and wherein the nose of the first jaw of said pair of jaws has a notch therein, the notch dimensioned to receive a portion of the curved needle and wherein the channel of the first jaw of said pair is arcuate and wherein the groove of the second jaw is likewise arcuate.

2. The instrument of claim 1 wherein the inner surface of each of said pair of jaws is serrated.

3. The instrument of claim 1 further including means to bias said jaws in a closed position.

4. The instrument of claim 3 wherein the inner surface of each of said pair of jaws is serrated.

5. The instrument of claim 1 further including means to rotate said jaws with respect to said pair of handles.

6. The instrument of claim 5 wherein the inner surface of each of said pair of jaws is serrated.

7. A grasping instrument for arthroscopic surgical use in externally manipulating a curved needle between the outside of a patient and a remote operation site, the instrument comprising:

a pair of jaws, said pair comprising a first jaw and a second jaw, the first jaw having a nose at the front end thereof and an articulation point the rear end thereof for articulation with respect to the second jaw, the first jaw having an outer surface with a top portion, front portion, and side portions and having an inner surface, the second jaw having an articulation point at the rear end thereof and having a nose at the front end thereof, the second jaw having an outer surface with a top portion, front portion, and side portions and an inner surface, wherein the first jaw contains a channel therethrough from the top surface of the first jaw through to the inner surface of the first jaw;

wherein the inner surface of the second jaw of said pair of jaws has an arcuate longitudinal groove coincident with the longitudinal axis of the second jaw and dimensioned to receive a portion of a curved needle therein when said curved needle is in the channel and is being held by the grasping device;

wherein the nose of the first jaw of said pair of jaws has a notch therein, the notch dimensioned to receive a portion of the curved needle;

a shaft with said pair of jaws operatively connected thereto at a first end thereof;

a pair of handles operatively connected to the second end of said shaft; and

means for opening and closing said jaws, said means operatively engaging both said handles and said pair of jaws;

wherein the channel of the first jaw of said pair of jaws is arcuate and is dimensioned to receive at least the rear portion of the curved needle therethrough, said jaws capable of securely grasping the needle so received.

8. The instrument of claim 7 wherein the inner surface of each of said pair of jaws is serrated.

9. The instrument of claim 7 further including means to bias said jaws in a closed position.

10. The instrument of claim 7 further including means to rotate said jaws with respect to said pair of handles.