Forceps for dissecting free tissue in body cavities

• US 6,709,445 B2
• Filed: 02/21/2001
• Issued: 03/23/2004
• Est. Priority Date: 02/21/2000
• Status: Expired due to Fees

• Current Assignee: Richard Wolf GmbH (Richard & Annemarie Wolf- Stiftung)
• Original Assignee: Richard Wolf GmbH (Richard & Annemarie Wolf- Stiftung)
• Inventors: Knodel, Frank, Boebel, Manfred, Gallinat, Adolf
• Primary Examiner(s): Bennett, Henry
• Assistant Examiner(s): Odland, Kathryn
• Application Number:
  US09/789,351
• Publication Number:
  US 20010021861A1
• Time in Patent Office: 1,126 Days
• Field of Search: 606/170, 606/171, 606/190, 606/205, 606/206, 606/207, 606/210, 606/167, 606/198, 600/564
• US Class Current: 606/207
• CPC Class Codes: A61B 10/06 Biopsy forceps , e.g. with cup-shaped jaws
• CPC Class Codes: A61B 17/29 Forceps for use in minimally invasive surgery
• CPC Class Codes: A61B 17/320016 Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes A61B10/0233, A61B17/29, A61B17/3207 take precedence
• CPC Class Codes: A61B 2017/2926 Details of heads or jaws
• CPC Class Codes: A61B 2017/320044 Blunt dissectors blunt suture needles A61B2017/06085

Abstract

A forceps serves in particular for excising myomas located intramurally in the uterus and including a forceps jaw having two branches which are pivotable about a common axis in a working plane for opening and closing the forceps jaw and which bear against one another with structured gripping surfaces with a closed, empty forceps jaw. The branches are each provided over a part of their length with a tooth-shaped back profile and a longitudinal cutting blade on their outer back sides lying opposite the gripping surfaces.

Claims

1. A forceps for excising tissue in body cavities, in particular myomas located intramurally in a uterus, comprising a forceps jaw having two branches which are pivotable about a common axis in opposing direction in a working plane for opening and closing the forceps jaw, the forceps jaw having structured gripping surfaces which bear against one another with a closed, empty forceps jaw, wherein the branches are each provided over a part of their length with a tooth-shaped back profile on an outer side of their backs lying opposite the gripping surfaces, and wherein a blade with an outwardly directed cutter is arranged longitudinally in a middle of each back profile.

2. The forceps according to claim 1, wherein the cutter terminates with the back profile in a flush manner.

3. The forceps according to claim 1, wherein the back profile has a saw-tooth shape, and wherein the teeth run transversely over the backs of the branches.

4. The forceps according to claim 3, wherein the teeth extend to a region of the branch gripping surfaces.

5. The forceps according to claim 3, wherein the teeth each have a standing flank which connects to a retrograde running flank of an adjacent proximally following tooth.

6. The forceps according to claim 1, wherein the cutter is substantially rectilinear in the longitudinal direction.

7. The forceps according to claim 3, wherein the teeth have substantially curvilinear edges in the transverse direction.