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US4643389A Expired / Lapsed US ⏱️ 0.0 years remaining

Tubing occlusion clip

Assignee: Edwards Lifesciences Corp
•
Filing: 1984-12-27
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Granted: 1987-02-17
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Expires: 2004-12-27
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Abstract

Abstract A tubing occlusion clip comprising a first wall portion, first and second arms joined to spaced regions of the first wall portion and a closing wall portion joined to the first arm and extendible to the second arm such that the arms cooperate with the wall portions to form a closed loop. The wall portions have openings, and a tube is coupled to the first wall portion and extends across the closed loop and through the opening of the closing wall portion. First and second clamping members are carried by the first and second arms, respectively, and they are adapted to have the tube extend therebetween. The arms are relatively movable toward each other to a clamping position in which the tube is clamped between the clamping members and relatively movable away from each other to a releasing position. Interlocking members are provided on the closing wall portion and the second arm for positively locking the closed loop against opening when the arms are in the releasing position.

Inventors

  • 👤 Edward E. Elson
  • 👤 Farley W. Bolwell
  • 👤 Wayne E. Manska
  • 👤 Stanley G. Shoffner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 20:59
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/22; A61M39/28; A61M39/284; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44641; Y10T24/44744; Y10T24/44752

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 263 words
A tubing occlusion clip comprising: an end wall portion; first and second arms joined to spaced regions of the end wall portion and being resiliently movable toward each other; a closing wall portion joined to said first arm and extendible to said second arm whereby said arms can cooperate with said wall portions to form a closed loop; said arms being adapted to have a tube extend therebetween; first and second clamping members carried by the first and second arms, respectively, and adapted to have the tube extend between the clamping members; said arms being relatively movable toward each other to a clamping position in which the tube is clamped between said clamping members to at least restrict flow through the tube and relatively movable away from each other to a releasing position in which the clamping members impose a lesser restriction to flow through the tube; said second arm terminating in a cam and having a shoulder and an outer surface at opposite ends of the cam; said closing wall portion having a cam follower and a shoulder at the inner end of said cam follower; said shoulders being in engagement in the releasing position whereby the arms are positively locked in the closed loop in the releasing position and said cam and said cam follower being in engagement in said releasing position whereby inward movement of the second arm moves the arms to the clamping position; and said outer surface engaging the shoulder of the closing wall portion in the clamping position to releasably retain the arms in the clamping position.
Claim 2
Dependent Claim 263 words
A tubing occlusion clip comprising: an end wall portion; first and second arms joined to spaced regions of the end wall portion and being resiliently movable toward each other; a closing wall portion joined to said first arm and extendible to said second arm whereby said arms can cooperate with said wall portions to form a closed loop; said arms being adapted to have a tube extend therebetween; first and second clamping members carried by the first and second arms, respectively, and adapted to have the tube extend between the clamping members; said arms being relatively movable toward each other to a clamping position in which the tube is clamped between said clamping members to at least restrict flow through the tube and relatively movable away from each other to a releasing position in which the clamping members impose a lesser restriction to flow through the tube; said second arm terminating in a cam and having a shoulder and an outer surface at opposite ends of the cam; said closing wall portion having a cam follower and a shoulder at the inner end of said cam follower; said shoulders being in engagement in the releasing position whereby the arms are positively locked in the closed loop in the releasing position and said cam and said cam follower being in engagement in said releasing position whereby inward movement of the second arm moves the arms to the clamping position; and said outer surface engaging the shoulder of the closing wall portion in the clamping position to releasably retain the arms in the clamping position.
Claim 3
Dependent Claim 43 words
A tubing occlusion clip as defined in claim 1 wherein said wall portions have openings therein whereby the tube can extend from the opening in the end wall portion and across said closed loop and into the opening of the closing wall portion.
Claim 4
Dependent Claim 55 words
A tubing occlusion clip as defined in claim 2 wherein the closing wall portion includes a member extending across the opening thereof and a tab on the second arm is extendible into the opening of the closing wall portion and engageable with said member to at least assist in locking the closed loop against opening.
Claim 5
Dependent Claim 31 words
A tubing occlusion clip as defined in claim 2 including said tube and wherein said tube is coupled to the end wall portion at the opening in said end wall portion.
Claim 6
Dependent Claim 42 words
A tubing occlusion clip as defined in claim 4 including a hub carried by the end wall portion and having the opening in the end wall portion extending therethrough and the tube is molded into the opening in the end wall portion.
Claim 7
Dependent Claim 55 words
A tubing occlusion clip as defined in claim 5 wherein the closing wall portion includes a member extending across the opening thereof and a tab on the second arm is extendible into the opening of the closing wall portion and engageable with said member to at least assist in locking the closed loop against opening.
Claim 8
Dependent Claim 36 words
A tubing occlusion clip as defined in claim 1 wherein said tubing occlusion clip is integrally molded of plastic and said end wall portion and said arms are relatively rigid and integrally joined by resilient hinges.
Claim 9
Dependent Claim 48 words
A tubing occlusion clip as defined in claim 1 including a hub carried by the end wall portion, projecting outwardly of the closed loop, and having the opening in the end wall portion extending therethrough and mechanical means on the hub for coupling the hub to another member.
Claim 10
Dependent Claim 29 words
A tubing occlusion clip as defined in claim 1 wherein said closing wall portion terminates substantially flush with said outer surface of said second arm in said releasing position.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-02-16 1990-08-18 1991-02-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-02-16 1994-08-18 1995-02-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-02-16 1998-08-18 1999-02-17 $7700.00 Window Closed / Lapsed

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