Clamp having bendable shaft

• US 7,108,703 B2
• Filed: 02/02/2004
• Issued: 09/19/2006
• Est. Priority Date: 05/02/2001
• Status: Expired due to Term

• Current Assignee: Vitalitec International Inc. (Groupe Peters Surgical SAS)
• Original Assignee: Vitalitec International Inc. (Groupe Peters Surgical SAS)
• Inventors: Gold, Adam C., Danitz, David J.
• Primary Examiner(s): Nguyen, Anhtuan T.
• Assistant Examiner(s): NGUYEN, TUAN VAN
• Application Number:
  US10/770,897
• Publication Number:
  US 20040158268A1
• Time in Patent Office: 960 Days
• Field of Search: 606/157, 606/158, 606/205, 606/206, 606/151, 606/123, 606/124, 606/125, 606/139, 606/141, 606/50, 606/57, 604/523, 604/524, 604/525, 604/535, 600/123, 600/124, 600/101
• US Class Current: 606/157
• CPC Class Codes: A61B 17/122 Clamps or clips , e.g. for the umbilical cord for the vas deferens A61F6/206
• CPC Class Codes: A61B 2017/00292 mounted on or guided by flexible, e.g. catheter-like, means
• CPC Class Codes: A61B 2017/00314 Separate linked members
• CPC Class Codes: A61B 2017/2837 with a locking ratchet
• CPC Class Codes: A61B 2017/2901 Details of shaft
• CPC Class Codes: A61B 2017/2905 flexible
• CPC Class Codes: A61B 2017/2946 Locking means
• CPC Class Codes: A61B 90/50 Supports for surgical instruments, e.g. articulated arms

Abstract

A clamp has a handle assembly and a gripping assembly having a pair of jaws that can be opened and closed to grip an element, the pair of jaws being parallel to each other when they are opened and when they are closed. The clamp also has a flexible shaft having a proximal end that is operatively coupled to the handle assembly and a distal end that is operatively coupled to the gripping assembly.

Claims

1. A clamp comprising:

a gripping assembly having a pair of jaws that can be opened and closed to grip an element;

a handle assembly for controlling the opening and closing of the jaws; and

a shaft assembly having;

a flexible shaft having a proximal end that is operatively coupled to the handle assembly and a distal end that is operatively coupled to the gripping assembly; and

a rigid element having a proximal end that is removably coupled to the handle assembly, and a distal end that is removably coupled to the gripping assembly;

wherein the rigid element supports the shaft in a manner where the shaft cannot be bent when the proximal and distal ends are coupled to the handle assembly and the gripping assembly, respectively, and wherein the shaft can be bent when the rigid element is removed from the handle assembly and the gripping assembly; and

whereby the handle assembly continues to remain operable to control the opening and closing of the jaws when the rigid element is removed from the handle assembly and the gripping assembly.

2. The clamp of claim 1, wherein the handle assembly includes means for locking the pair of jaws in a closed position, the locking means having means for adjusting the locking force of the jaws.

3. The clamp of claim 2, wherein the handle assembly includes a first handle piece and a second handle piece, and the locking means includes:

a ratchet rack pivotally coupled to the first and second handle pieces, the ratchet rack having a tooth; and

a ratchet that is normally biased towards the ratchet rack, and having means for engaging the tooth on the ratchet rack.

4. The clamp of claim 3, wherein the adjusting means includes the engaging means, with the engaging means having an elongate member that has a helical groove that also defines a continuous path that includes a plurality of teeth, with the tooth of the ratchet rack adapted to engage the groove and to travel along the continuous path.

5. The clamp of claim 1, wherein the flexible shaft is capable of withstanding axial loads when the plurality of telescoping tubes is in the first position.

6. The clamp of claim 1, wherein the jaws are non-rotational and are capable of supporting axial loads, side loads, moments, and torques.