Sternum closure device

• US 20060122611A1
• Filed: 11/14/2005
• Published: 06/08/2006
• Est. Priority Date: 06/04/2003
• Status: Abandoned Application

• Current Assignee: Aesculap AG (B. Braun Holding GmbH & Co. KG)
• Original Assignee: Aesculap AG (B. Braun Holding GmbH & Co. KG)
• Inventors: Morales, Pedro, Dworschak, Manfred, Eijsman, Leon
• Application Number:
  US11/274,921
• Publication Number:
  US 20060122611A1
• Time in Patent Office: Days
• US Class Current: 606/324
• CPC Class Codes: A61B 17/688 for reattaching pieces of the skull
• CPC Class Codes: A61B 17/8076 for the ribs or the sternum
• CPC Class Codes: A61B 17/809 with bone-penetrating elements, e.g. blades or prongs bone staples A61B17/0642; intramedullary nails with a plate at an end A61B17/7233
• CPC Class Codes: A61B 17/823 for the sternum
• CPC Class Codes: A61B 2017/00004 (bio)absorbable, (bio)resorbable, resorptive for implantable prostheses A61F2210/0004

Abstract

In a sternum closure device for fixing two sternum portions to be joined to each other, comprising a first plate-shaped contact element for placement against the inner surface of the sternum, a clamping element fixed on and protruding transversely from the first contact element, a second plate-shaped contact element for placement against the outer side of the sternum, the second contact element being clampable against the first contact element by means of the clamping element passing through the space between the sternum portions, and fixing projections on the first contact element pointing in the direction towards the second contact element, in order to facilitate placement of the sternum closure device, it is proposed that at least one fixing projection on the first contact element be provided with barb-shaped recesses.

Claims

1. Sternum closure device for fixing two sternum portions to be joined to each other, comprising a first plate-shaped contact element for placement against the inner surface of the sternum, a clamping element fixed on and protruding transversely from the first contact element, a second plate-shaped contact element for placement against the outer side of the sternum, the second contact element being clampable against the first contact element by means of the clamping element passing through the space between the sternum portions, and fixing projections on the first contact element pointing in the direction towards the second contact element, wherein at least one fixing projection on the first contact element is provided with barb-shaped recesses.

2. Sternum closure device in accordance with claim 1, wherein at least one fixing projection provided with recesses protrudes further in the direction towards the second contact element than other fixing projections.

3. Sternum closure device in accordance with claim 1, wherein the first contact element comprises only one fixing projection with recesses and a plurality of fixing projections without recesses.

4. Sternum closure device in accordance with claim 1, wherein at least one fixing projection at ends extending substantially parallel to the space between the sternum portions is slightly inclined relative to a plane lying perpendicular to the contact surface of the contact element.

5. Sternum closure device in accordance with claim 2, wherein at least one fixing projection at ends extending substantially parallel to the space between the sternum portions is slightly inclined relative to a plane lying perpendicular to the contact surface of the contact element.

6. Sternum closure device in accordance with claim 4, wherein the inclined fixing projections are inclined towards one another on opposite sides.

7. Sternum closure device in accordance with claim 5, wherein the inclined fixing projections are inclined towards one another on opposite sides.

8. Sternum closure device in accordance with claim 1, wherein two clamping elements are fixed on the first contact element so as to extend in parallel spaced relation to each other.

9. Sternum closure device in accordance with claim 1, wherein the clamping element is of pin-shaped design.

10. Sternum closure device in accordance with claim 6, wherein the clamping element is of pin-shaped design.

11. Sternum closure device in accordance with claim 1, wherein the second contact element carries elastic tongues which rest against the clamping element and enable displacement of the contact element relative to the clamping element in one direction only.

12. Sternum closure device in accordance with claim 1, wherein a holding member displaceable on the clamping element is arranged on the side of the second contact element facing away from the first contact element and carries elastic tongues which rest against the clamping element and enable displacement of the holding member relative to the clamping element in one direction only.

13. Sternum closure device in accordance with claim 1, wherein the contact elements are of rectangular design.

14. Sternum closure device in accordance with claim 13, wherein a fixing projection with barb-shaped recesses is arranged at the center of the longer side edge of the first contact element.

15. Sternum closure device in accordance with claim 1, wherein the fixing projections on the second contact element are of the same design as on the first contact element.

16. Sternum closure device in accordance with claim 2, wherein the fixing projections on the second contact element are of the same design as on the first contact element.

17. Sternum closure device in accordance with claim 4, wherein the fixing projections on the second contact element are of the same design as on the first contact element.