Surgical instrument for the placement of ligature clips

• US 20100274264A1
• Filed: 03/31/2010
• Published: 10/28/2010
• Est. Priority Date: 04/24/2009
• Status: Abandoned Application

• Current Assignee: Aesculap AG (Lonza Group AG)
• Original Assignee: Aesculap AG (Lonza Group AG)
• Inventors: Weisshaupt, Dieter, Morales, Pedro, Schulz, Peter
• Application Number:
  US12/798,317
• Publication Number:
  US 20100274264A1
• Time in Patent Office: Days
• US Class Current: 606/143
• CPC Class Codes: A61B 17/1285 for minimally invasive surgery
• CPC Class Codes: A61B 2017/2911 rings

Abstract

In a surgical instrument for placement of C-shaped ligature clips having two legs running next to one another and connected to one another by means of a bridge-section, with two clamping jaws movable relative to one another, with a supply guide means, along which the ligature clip can be pushed onto the clamping jaws with the free ends of the legs first, with a clamping jaw guide means, which adjoins the supply guide means and in which the ligature clip can be inserted between the clamping jaws, and with a feeding means for advancing a ligature clip out of the supply guide means into the clamping jaw guide means and into an end position between the clamping jaws, in order to improve the guidance of the ligature clips during transfer from the supply guide means into the clamping jaw guide means, it is proposed that the feeding means comprises a feed element, which can be placed against the ligature clip to be fed and is guided in a longitudinal guide means running along its feed path in the transition region from the supply guide means into the clamping jaw guide means.

Claims

1. A surgical instrument for the placement of C-shaped ligature clips having two legs running next to one another and connected to one another by means of a bridge section, with two clamping jaws movable relative to one another, with a supply guide means, along which the ligature clip can be pushed onto the clamping jaws with the free end of the legs first, with a clamping jaw guide means, which adjoins the supply guide means and in which the ligature clip can be inserted between the clamping jaws, and with a feeding means for displacing a ligature clip out of the supply guide means into the clamping jaw guide means and into an end position between the clamping jaws, wherein the feeding means comprises a feed element, which can be placed against the ligature clip to be fed and is guided in a longitudinal guide means running along its feed path in the transition region from the supply guide means into the clamping jaw guide means.

2. A surgical instrument according to claim 1, wherein the longitudinal guide means is formed by at least one longitudinal groove, into which a lateral guide projection of the feed element projects.

3. A surgical instrument according to claim 2, wherein there is provided, on opposite sides of the feed element, a respective longitudinal groove, into which project lateral guide projections of the feed element located opposite one another.

4. A surgical instrument according to claim 1, wherein the longitudinal guide means is arranged in the clamping jaws.

5. A surgical instrument according to claim 1, wherein the supply guide means and the clamping jaw guide means are inclined relative to one another.

6. A surgical instrument according to claim 4, wherein the supply guide means and the clamping jaw guide means are inclined relative to one another.

7. A surgical instrument according to claim 5, wherein the angle of inclination between the supply guide means and the clamping jaw guide means lies between 5°

and 45°

.

8. A surgical instrument according to claim 5, wherein the longitudinal guide means runs in a curve in the transition region between the supply guide means and the clamping jaw guide means.

9. A surgical instrument according to claim 1, wherein the feed element is elastically deformable.

10. A surgical instrument according to claim 1, wherein the feed element is in the form of a strip.

11. A surgical instrument according to claim 10, wherein the feed element in the form of a strip bears at least one laterally projecting arm, which projects into a longitudinal groove of the instrument and thus guides the feed element in the longitudinal direction.

12. A surgical instrument according to claim 11, wherein at its end the arm bears a guide section bent at right angles, the length of which corresponds to the width of the longitudinal groove.

13. A surgical instrument according to claim 1, wherein the feed element at least partially embraces the ligature clip in the abutment region on the ligature clip.

14. A surgical instrument according to claim 13, wherein the feed element has a feed surface running transversely to the feed direction, a lower support surface abutting against the underside of the ligature clip and an upper support surface abutting against the upper side of the ligature clip.

15. A surgical instrument according to claim 14, wherein in the case of a ligature clip consisting of two sections located next to one another forming a slit between them, the upper support surface engages into the slit and abuts against the upper side of the section, against the underside of which the lower support surface abuts.

16. A surgical instrument according to claim 1, wherein the legs of the ligature clip diverge from the bridge section to the free ends of the legs, so that the legs are only guided at their fee ends in the clamping jaw guide means.