Surgical clip advancing system

• US 5,527,318 A
• Filed: 01/05/1995
• Issued: 06/18/1996
• Est. Priority Date: 01/15/1988
• Status: Expired due to Term

• Current Assignee: United States Surgical Corporation (Medtronic Plc)
• Original Assignee: United States Surgical Corporation (Medtronic Plc)
• Inventors: McGarry, Richard A.
• Primary Examiner(s): Jackson, Gary
• Application Number:
  US08/368,928
• Time in Patent Office: 530 Days
• Field of Search: 606/139, 606/142, 606/143, 227/19, 227/175, 227/180
• US Class Current: 606/139
• CPC Class Codes: A61B 17/128 for applying or removing clamps or clips
• CPC Class Codes: A61B 17/1285 for minimally invasive surgery

Abstract

A clip advancing system is provided which includes a pusher bar having a nose with two transverse members, each transverse member including a distally facing clip contacting surface and an angular cam surface proximal thereto.

Claims

1. A surgical clip advancing system which comprises:

an elongated clip carrier defining a longitudinal axis and a clip-supporting face;

a plurality of surgical clips in contact with the clip-supporting face of the elongated carrier;

an elongated pusher bar movably mounted with respect to the elongated carrier, the pusher bar having a distal end and a proximal end and including a nose at its distal end, the nose having a pair of members extending substantially transverse to the longitudinal axis, each substantially transverse member including a distally facing clip contacting surface and an angular cam surface proximal to the clip contacting surface.

2. The system of claim 1, wherein the distal end of the pusher bar is angled with respect to the longitudinal axis.

3. The system of claim 1, wherein the elongated clip carrier is an elongated channel having a pair of side walls between which the surgical clips are slidably guided.

4. The system of claim 1, further comprising a pusher and a biasing spring positioned proximal of the plurality of surgical clips, wherein the pusher and biasing spring distally bias the plurality of surgical clips along the clip carrier.

5. The system of claim 1, further comprising at least one finger upstanding from the clip carrier, wherein the at least one finger prevents distal movement of the surgical clips.

6. The system of claim 1, further comprising a tab extending from the clip carrier, wherein the tab prevents proximal movement of a distal-most surgical clip in contact with the clip supporting face of the clip carrier.

7. The system of claim 1, wherein the plurality of surgical clips are U-shaped and are aligned in an array in contact with the clip-supporting face of the clip carrier.