Ethicon Endo-surgery, Inc.

John I Izuchukwu

Charles A Hansford

Jeremy David Jarrett

Richard R Schweet

John J Mertz

Eugene L Timperman

Robert L Koch, Jr

Leslie M Fugikawa

Robert F Welch

Steven W Hamblin

Navneet T Sharma

John A Kretchman

Jeff Kirk

David Wolf

An improved surgical stapler which allows for the multi-directional release of staples includes a stapler body and a driver contained therein. A magazine is connected to the stapler body and includes a plurality of staples. The magazine also includes an anvil having a staple forming surface at a distal end thereof for forming a staple thereon. The anvil is movable from a staple forming position to a staple release position. A feeder element which is spring biased against the staples is used for feeding each staple to the staple forming surface. A trigger is operatively connected to the driver and is movable from a pre-fire position to a firing position for advancing the driver against the anvil for forming the staple against the staple forming surface of the anvil. The trigger is operatively connected to the anvil for moving the anvil from the staple forming position to the staple release position for releasing the staple from the stapler.

Skin stapler with movable anvil

An improved surgical stapler includes a stapler body having a driver and a magazine connected to the stapler body. The magazine includes a staple track for carrying a plurality of staples and an anvil associated with the staple track. The anvil has a staple forming surface for forming each of the staples thereon. A trigger is operatively connected to the driver for advancing the driver against the anvil so as to form the staple against the staple forming surface of the anvil. A feeder for feeding each of the staples from the staple track to the anvil is movably mounted in the magazine. A pinion is operatively connected to the trigger and is movably engaged with the feeder. An indexing member is movably engaged with the pinion such that the indexing member and the pinion advance the feeder and the staples toward the anvil upon an actuation of the trigger.

Skin stapler with rack and pinion staple feed mechanism

An improved surgical stapler which allows for the multi-directional release of staples includes a stapler body and a driver contained therein. A magazine is connected to the stapler body and includes a staple track for carrying a plurality of staples wherein each of the staples has staple legs. An anvil is associated with the staple track for providing a staple forming surface for forming a staple thereon. A feeder element which is spring biased against the staples is used for feeding each staple from the staple track to the anvil. A trigger is operatively connected to the driver and is movable from a pre-fire position to a firing position for advancing the driver against the anvil for forming the staple against the anvil. A kick-off spring is positioned beneath and substantially parallel to the staple track and the anvil. The kick-off spring has a deflectable tip which is deflected away from the anvil and engages the staple legs of the staple by downwardly camming against the staple legs when the trigger is moved from its pre-fire position to its firing position. The kick-off spring ejects the staples off of and away from the anvil by disengaging the staple legs with the deflectable tip by upwardly camming against the staple legs upon returning of the trigger from the firing position to the pre-fire position.

Skin stapler with multi-directional release mechanism

Growing community of inventors

Loveland, OH, United States of America

John I Izuchukwu