EP0594004A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Surgical clip applier

Assignee: United States Surgical Corp

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Filing: 1993-10-08

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Granted: —

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Expires: 2013-10-08

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Abstract

Abstract A surgical clip applicator (10) comprising a housing (12,14), a pair of handles (22) pivotally connected to opposite sides of said housing (12,14), and a jaw blade assembly (17) fixedly connected to the housing (12,14). The jaw blade assembly (17) includes a pair of jaws (38) for receiving and deforming a clip therebetween and a clip carrier (40) for supplying a series of clips (42) to said jaws (38). A channel assembly (16) is slidably mounted in the housing (12,14) and envelops said jaw blade assembly (17). A forming cam (30) is connected between and to said handles (12,14) and said channel assembly (16) for sliding said channel assembly (16) in a distal direction in response to closing of said handles (22) together to move said jaws (38) towards each other. A feed cam bar (18) slidably mounted in said channel assembly (16) in overlying relation to said clip carrier (40), said bar having a nose (84) at its distal end. A pusher bar (90) slidably mounted in said channel assembly (16) for advancing clips (42) along said clip carrier (40). A first spring means connected between said cam bar (18) and said forming cam (30) for sliding said cam (18) bar in a proximal direction in response to closing of said handles (22) together and further biasing said channel assembly (16) in a proximal direction. Second spring means biasing said pusher bar (90) in a distal direction to push a foremost clip in said clip carrier (40) between said jaws (38) in response to opening of said handles (22) form each other. A clip retainer (51) for preventing movement of said spring biased pusher bar (90) is also provided.

Inventors

👤 David T. Green
👤 Henry Bolanos
👤 Kenneth E. Toso
👤 Daniel E. Alesi

Bibliographic Details

Application Number —

Jurisdiction EP

Data Source google_patents

Last Synchronized 2026-10-22 23:03

CPC Classifications

A; A61; A61B; A61B17/00; A61B17/12; A61B17/128; A61B17/1285; A61B17/11; A61B2017/1107

Claims Analysis

Total Claims: 10

Claim 1

Independent Claim 238 words

A surgical clip applicator comprising: a housing; a pair of handles pivotally connected to said housing and actuable in a tweezer like manner, each of said handles having a proximal and a distal end and being pivotally mounted to said housing at said proximal ends; a pair of jaws extending from said housing for receiving and deforming a clip therebetween; means extending from said housing for holding a series of clips; a channel assembly slidably mounted in said housing; means connected to said channel assembly for sliding said channel assembly in a distal direction in response to closing of said handles to move said jaws towards each other; means slidably mounted in said channel assembly in overlying relation to said clip holding means for feeding said clips into said jaws, said feeding means comprising a feed bar having a nose at a distal end; a pusher bar slidably mounted in said channel assembly for advancing said series of clips along said holding means; first spring means connected between said sliding means and said feeding means for biasing said feeding means in a distal direction and for further biasing said channel assembly in a proximal direction; second spring means biasing said pusher bar in a distal direction to push a foremost clip from said clip holding means to a position between said jaws in response to opening of said handles; and means for preventing movement of said pusher bar.

Claim 2

Dependent Claim 19 words

A surgical clip applicator as defined in claim 1, wherein said jaws and said clip holding means are integral.

Claim 3

Dependent Claim 23 words

A surgical clip applicator as defined in claim 1 or 2, wherein said first spring means biases said handles into an open position.

Claim 4

Dependent Claim 38 words

An applicator as defined claim 1, 2 or 3, wherein said distal end of said pusher bar has a rounded distal end portion with a pair of prongs for engaging the proximal-most clip on said clip holding means.

Claim 5

Dependent Claim 31 words

An applicator as defined in any one of the preceding claims, wherein said sliding means includes at least one cam slot for engaging with said handles to actuate said channel assembly.

Claim 6

Dependent Claim 60 words

An applicator as defined in any one of the preceding claims, wherein said means for preventing movement is a clip retainer extending from said clip holding means for preventing movement of said clips into said jaws and being movable between a first position which prevents movement of said clips and a second position which permits said clips to advance distally.

Claim 7

Dependent Claim 27 words

An applicator as defined in claim 6, wherein said clip retainer is movable from said first position to said second position by engagement with said feeding means.

Claim 8

Dependent Claim 43 words

An applicator as defined in claim 7, wherein engagement of said clip retainer with said feeding means causes movement of said clip retainer away from said clip holding means to permit movement of at least one clip positioned on said clip holding means.

Claim 9

Dependent Claim 23 words

An applicator as defined in any one of the preceding claims, wherein said handles are pivotable about a distal end of said housing.

Claim 10

Dependent Claim 28 words

An applicator as defined in any one of the preceding claims further comprising a spring guide cooperating with said second spring for controlling advancement of said pusher bar.

References Cited (Backward Citations)

US4712549A Cited

US5047038A Cited

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