Coagulation forceps with a hollow shaft

• US 8,298,230 B2
• Filed: 03/17/2006
• Issued: 10/30/2012
• Est. Priority Date: 03/24/2005
• Status: Active Grant

• Current Assignee: Sutter Medizintechnik GmbH
• Original Assignee: Sutter Medizintechnik GmbH
• Inventors: Sutter, Hermann, Weitkamp, Dirk
• Primary Examiner(s): Dvorak, Linda
• Assistant Examiner(s): HUPCZEY, JR, RONALD JAMES
• Application Number:
  US11/378,503
• Publication Number:
  US 20060217708A1
• Time in Patent Office: 2,419 Days
• Field of Search: 606 41- 52, 606/174, 606205-211
• US Class Current: 606/51
• CPC Class Codes: A61B 17/282 Jaws
• CPC Class Codes: A61B 18/1447 wherein sliding surfaces cause opening/closing of the end effectors
• CPC Class Codes: A61B 2017/2933 camming or guiding means
• CPC Class Codes: A61B 2017/2945 Curved jaws
• CPC Class Codes: A61B 2018/1432 curved
• CPC Class Codes: A61B 2218/007 Aspiration

Abstract

Coagulation forceps (1) with a hollow shaft (2) and with a fixed forceps leg (3), set at an angle in reference to the hollow shaft (2) and provided with a gripping surface (3a) are provided, having a forceps leg (6) pivotally mounted in reference thereto at a pivot support (4). At the exterior or bottom side facing away from the pivotal forceps leg (6), a hollow profile (8) is provided for stiffening or reinforcing it, which has a mouth or entry opening (10) at the distal end of its interior longitudinal caving (9), i.e. is open and leads to a suction connection (12) so that suction can be applied via the hollow profile (8) in the distal end region of this forceps leg (3).

Claims

1. Coagulation forceps (1) comprising a hollow shaft (2) with a fixed forceps leg (3) having a gripping surface (3a) set at an angle in reference to the hollow shaft (2), a pivotable forceps leg (6) pivotably connected at a pivot support (4) relative to the fixed forceps leg (3) by a pivotal element (5), the fixed forceps leg (3) is stiffened or reinforced by a hollow profile (8) arranged at an exterior or bottom side thereof facing away from the movable forceps leg (6), the hollow profile is open with an interior longitudinal cavity (9) in an end region of the fixed forceps leg (3) and extends towards the hollow shaft (2) and with an extension (11) along the hollow shaft (2), and is provided at a proximal end of the extension (11) with a suction connector (12), the coagulation forceps (1) comprise bipolar coagulation forceps and an insulation part (15) is provided between the fixed forceps leg (3) and the pivot support (4) for the movable forceps leg (6), and the hollow profile (8) and the extension (11) are connected in one piece or are welded together along an entire longitudinal extension thereof.

2. Coagulation forceps according to claim 1, wherein the hollow profile (8) ends in an area of the distal end of the fixed forceps leg (3) and extends therefrom over the entire longitudinal extension of the forceps leg (3).

3. Coagulation forceps according to claim 1, wherein an entry opening (10) at the open end of the hollow profile (8) is approximately flush to a distal end of the gripping surface (3a) of the fixed leg (3).

4. Coagulation forceps according to claim 3, wherein an encircling rim (13) of the entry opening (10) of the hollow profile (8) is arranged in one plane which forms an angle with a plane of the gripping surface (3a), which is equal to or smaller than 90°

.

5. Coagulation forceps according to claim 4, wherein the rim of the entry opening of the hollow profile facing away from the gripping surface (3a) is off-set backwards in reference to an end of the gripping surface (3a), and the hollow profile (8) together with the gripping surface (3a) have a sloped or conically narrowing form.

6. Coagulation forceps according to claim 1, wherein a cross-section of the hollow profile (8) is circular or oval.

7. Coagulating forceps according to claim 1, wherein the hollow profile (8) is flattened or provided with an oval cross-section at at least a distal end or in a progression along the fixed forceps leg (3), and a larger dimension of the cross-section is arranged approximately parallel to the gripping surface (3a) and is approximately equivalent to or smaller than a width of the gripping surface (3a) of the fixed leg (3).

8. Coagulation forceps according to claim 1, wherein the hollow profile (8) is connected in a fixed manner to the fixed forceps leg (3).

9. Coagulation forceps according to claim 8, wherein the hollow profile (8) is connected to the fixed forceps leg (3) by soldering or welding.

10. Coagulation forceps according to claim 1, wherein the fixed forceps legs (3) and the hollow profile (8) are connected in one piece or have a connection point along the hollow profile (11) extending along the hollow shaft (2).

11. Coagulation forceps according to claim 1, wherein the insulation (15) shields at least the non-angled part of the fixed forceps leg (3).

12. Coagulation forceps according to claim 11, wherein the insulation (15) is connected to the non-angled part of the fixed forceps leg (3).