Multiple hemoclip system for an endoscope

• US 20060259045A1
• Filed: 02/09/2006
• Published: 11/16/2006
• Est. Priority Date: 10/24/2001
• Status: Abandoned Application

• Current Assignee: Scimed Life Systems Incorporated (Boston Scientific Corporation)
• Original Assignee: Scimed Life Systems Incorporated (Boston Scientific Corporation)
• Inventors: Damarati, John J.
• Application Number:
  US11/351,294
• Publication Number:
  US 20060259045A1
• Time in Patent Office: Days
• US Class Current: 606/142
• 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 17/1227 Spring clips
• CPC Class Codes: A61B 17/1285 for minimally invasive surgery
• CPC Class Codes: A61B 2017/00296 mounted on an endoscope
• CPC Class Codes: A61B 2017/00867 shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61B 2017/2905 flexible
• CPC Class Codes: A61B 2017/2924 Translation movement of handle without rotating movement
• CPC Class Codes: Y10T 29/53783 Clip applier

Abstract

Spring clips are arranged end to end in a cavity of an inner shaft. Such shaft slides within an outer shaft, and a pusher member slides in the cavity behind the clips. The clips have jaws biased together, but which are wedged apart by an opener as the pusher is moved distally. An opened clip is ejected by relative movement of the inner and outer shafts to clamp body tissue at a desired site.

Claims

1. An apparatus comprising:

an elongated tubular outer shaft having a distal portion and a proximate portion;

an elongated tubular inner shaft slideable inside the outer shaft and having a distal portion adjacent to the outer shaft distal portion and a proximate portion adjacent to the outer shaft proximate portion, the distal portion of the inner shaft forming an elongated cavity;

a clip slideably received in the cavity and having opposing jaws biased toward each other, the clip having a leading end facing the distal end of the inner shaft, the clip having a trailing end remote from the distal end of the inner shaft;

a pusher member slideably received in the inner shaft and having a distal portion fitted in the distal portion of the inner shaft and positioned to be proximate to the trailing end of the clip received in the cavity, the pusher member including a proximate portion extending to the proximate portion of the inner shaft, the pusher member being moveable distally of the inner shaft for sliding the clip within the cavity; and

a clip opening component at the distal end of the inner shaft and adjacent to the distal end of the outer shaft, the opening component having at least one clip-wedging side piece with at least one wedge surface angled outward and in the path of the leading end of a clip for engagement between the jaws of the clip as the clip is moved distally by the pusher member so as to spread apart the jaws in opposition to force tending to bias the jaws of the clip toward each other, for moving the clip to and holding the clip in a loaded position in which the jaws project from the distal end of the outer shaft, the inner and outer shafts and the clip being constructed and arranged relatively to eject a clip distally from the loaded position by relative movement of the inner and outer shafts to free the clip from the opening component and apply a clamping force by inherent biasing of the clip jaws toward each other.

2. The apparatus defined in claim 1, including a row of identical clips received in the cavity and arranged end to end.