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US5190554A Expired / Lapsed US ⏱️ 0.0 years remaining

Appendix extractor

Assignee: Eastern Virginia Medical School
•
Filing: 1992-04-08
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Granted: 1993-03-02
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Expires: 2012-04-08
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Abstract

Abstract An appendix extractor includes a cannula (10) with two spaced apart guide members (12 and 14) and an appendix grasping line (16) threaded through each of the guide members (12 and 14). Finger loops (20, 28, and 30) allow for easy insertion into a hole in the patient's abdomen, movement of the appendix grasping assembly forward from the cannula (10), and enlargement and contraction of the appendix grasping region (26) of the appendix grasping line (16).

Inventors

  • 👤 Charles C. Coddington, III
  • 👤 David L. Sarrett

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 06:30
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/00234; A61B17/28; A61B17/29; A61B2017/2926; A61B2017/2932; A61B2017/2944

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 265 words
An appendix extraction tool, comprising: a cannula sized to fit in a laparoscopic hole in a patient's abdomen having first and second ends, a first end of said cannula being insertable within a human abdomen and having an opening large enough to accommodate a human appendix; two spaced apart guide members positioned within said cannula; a first slidable member connecting said two spaced apart guide members, said first slidable member being positioned within said cannula; a means for moving said first slidable member between a first position within said cannula to a second position which may be inside or outside said first end of said cannula; an appendix grasping line which passes through said two spaced apart guide members, said appendix grasping line forming an appendix grasping loop between said two spaced apart guide members, said appendix grasping line being separate from said means for moving; and means for enlarging and contracting said appendix grasping loop which is separately operable from said means for moving including (i) means for securing said appendix grasping line to a first of said two spaced apart guide members, and (ii) a means for sliding a sufficient amount of said appendix grasping line out a first end of a second of said two spaced apart guide members for said appendix grasping loop to fit around a distal tip of said human appendix, said means for sliding including a second slidable member which can slide within said second guide member of said two spaced apart guide members relatively toward and away from said second of said two spaced apart guide members.
Claim 2
Dependent Claim 265 words
An appendix extraction tool, comprising: a cannula sized to fit in a laparoscopic hole in a patient's abdomen having first and second ends, a first end of said cannula being insertable within a human abdomen and having an opening large enough to accommodate a human appendix; two spaced apart guide members positioned within said cannula; a first slidable member connecting said two spaced apart guide members, said first slidable member being positioned within said cannula; a means for moving said first slidable member between a first position within said cannula to a second position which may be inside or outside said first end of said cannula; an appendix grasping line which passes through said two spaced apart guide members, said appendix grasping line forming an appendix grasping loop between said two spaced apart guide members, said appendix grasping line being separate from said means for moving; and means for enlarging and contracting said appendix grasping loop which is separately operable from said means for moving including (i) means for securing said appendix grasping line to a first of said two spaced apart guide members, and (ii) a means for sliding a sufficient amount of said appendix grasping line out a first end of a second of said two spaced apart guide members for said appendix grasping loop to fit around a distal tip of said human appendix, said means for sliding including a second slidable member which can slide within said second guide member of said two spaced apart guide members relatively toward and away from said second of said two spaced apart guide members.
Claim 3
Dependent Claim 27 words
An appendix extraction tool as recited in claim 1 wherein said second slidable member is hollow and said appendix grasping line passes through said second slidable member.
Claim 4
Dependent Claim 18 words
An appendix extraction tool as recited in claim 1 wherein the first slidable member is a hollow tube.
Claim 5
Dependent Claim 44 words
An appendix extraction tool as recited in claim 1 wherein at least a portion of said two spaced apart guide members projects from said first end of said cannula when said means for moving has moved said first slidable member to said second position.
Claim 6
Dependent Claim 34 words
An appendix extraction tool as recited in claim 3 wherein said means for moving said first slidable member includes an extended portion of said second guide member of said two spaced apart guide members.
Claim 7
Dependent Claim 22 words
An appendix extraction tool as recited in claim 1 further comprising handles on said second guide member and said second slidable member.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1996-03-01 1996-08-31 1997-03-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2000-03-01 2000-08-31 2001-03-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2004-03-01 2004-08-31 2005-03-02 $7700.00 Window Closed / Lapsed

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