Actuating handle for surgical instruments

• US 5,382,254 A
• Filed: 10/30/1992
• Issued: 01/17/1995
• Est. Priority Date: 07/18/1989
• Status: Expired due to Term

• Current Assignee: United States Surgical Corporation (Medtronic Plc)
• Original Assignee: United States Surgical Corporation (Medtronic Plc)
• Inventors: Castro, Salvatore, Gonzalez, Giovanni, McGarry, Richard A., Phillips, Paul J.
• Primary Examiner(s): Pellegrino, Stephen C.
• Assistant Examiner(s): Jackson, Gary
• Application Number:
  US07/969,754
• Time in Patent Office: 809 Days
• Field of Search: 606/139, 606/143, 606/142, 227/19, 227/175-182
• US Class Current: 606/143
• CPC Class Codes: A61B 17/1285 for minimally invasive surgery
• CPC Class Codes: A61B 90/03 Automatic limiting or abutting means, e.g. for safety

Abstract

An apparatus is disclosed for individually applying surgical clips endoscopically to body tissue which includes a frame, an elongated endoscopic section having clip closing jaws positioned at a distal end thereof and surgical clips slidably positioned therein, rotatably connected to a distal end of the frame such that the endoscopic section extends distally therefrom. The apparatus includes a system for individually advancing the surgical clips into the clip closing jaws and a system for closing the clip closing jaws. An interference mechanism is associated with the a release mechanism, and is configured, dimensioned and adapted to prevent actuation of the jaw closing system until a surgical clip is positioned between the clip closing jaws.

Claims

1. An actuating handle for attachment to an endoscopic portion of an endoscopic surgical instrument, which comprises:

a frame;

a pusher drive member positioned within said frame and movable between proximal and distal positions;

a spring member positioned within said frame and operatively connected to bias said pusher drive member toward said distal position;

a first actuating member at least partially extending from said frame, and configured and adapted to cooperate with said pusher drive member such that actuation of said first actuating member causes said pusher drive member to move distally under the bias of said spring member;

a second actuating member at least partially extending from said frame and movable between non-actuated and actuated positions, said second actuating member being operatively connected to a channel drive member slidably positioned within said frame and movable between proximal and distal positions; and

means at least partially connected to said first actuators member for preventing substantial movement of said second actuating member from said non-actuated position to said actuated position until said pusher drive member is in said distal position.

2. The actuating handle according to claim 1, wherein said means for preventing substantial movement of said second actuating member comprises a rigid member having a first end connected to said first actuating member and a free second end which upon actuation of said first actuating member engages at least a portion of said second actuating member to prevent said movement of said second actuating member.

3. The actuating handle according to claim 1, wherein said first actuating member comprises a button.

4. The actuating handle according to claim 1, wherein said first actuating member comprises a trigger.

5. The actuating handle according to claim 1, wherein said second actuating member comprises a handle pivotally connected to said frame and at least one link connected between said handle and said channel drive member such that movement of said handle is translated to movement of said channel drive member.

6. The actuating handle according to claim 5, wherein said means for preventing substantial movement of said second actuating member engages said at least one link so as to prevent said movement of said second actuating member.

7. The actuating handle according to claim 1 further comprising:

means positioned within said frame for releasably maintaining said pusher drive member in said proximal position; and

means positioned within said frame and operatively connected to said first actuating member for releasing said means for releasably maintaining said pusher drive member.

8. The actuating handle according to claim 1 further comprising:

means positioned within said frame for releasably maintaining said channel drive member in said proximal position; and

means positioned within said frame for releasing said means for releasably maintaining said channel drive member.

9. The actuating handle according to claim 8, wherein said releasing means is operatively connected to said pusher drive member such that movement of said pusher drive member to said distal position causes said means for releasably maintaining said channel drive member to release said channel drive member.