Ethicon Endo-surgery, Inc.

Ethicon, Gmbh

J David Hughett

Michael A Murray

David Stefanchik

C Kerwin Braddock

Michael E Boehm

Mark Fogelberg

Mark S Ortiz

John A Hibner

Sean P Conlon

Rudolph Henry Nobis

James J Bedi

Richard C Smith

Federico Bilotti

Gregory D Bishop

Jack E Smith

Mark A Burdorff

Thomas J Sierocuk

Joseph F Paraschac

Narinderjit S Sambi

E David Allen

Eugene David Allen

Mark S Zeiner

Bryan Dale Knodel

Anil K Nalagatla

William D Fox

Kenneth S Wales

Ronald J Brinkerhoff

Richard L Grant

Jerome E Reckelhoff

Roger L Hildwein

Philip J Churchill

W Thompson Lawrence

Charles A Hansford

Helmut Wolf

Clifton Coles

A clip, clip applier and method for ligating a tissue structure is provided. The applier has a two stage actuation. In the first stage, a tissue structure is positioned into the jaws of the clip applier. The jaws close and lock to a preset force to compress and temporarily occlude the tissue structure. If satisfactorily positioned, the second stage is initiated in which a clip is advanced through the shaft of the clip applier in a closed position. At the distal end of the clip applier, the clip is opened slightly to capture the pre-compressed tissue structure, and is placed over the structure. The clip is then dissociated from the business end of the instrument. Preferably the clip comprises two leg members disposed in close proximity to one another joined from opposing directions by a connecting element. The connecting element restricts separation of the leg members with opposing spring members so as to provide substantially uniform parallel deflection of the leg members from each other.

Sterile occlusion fasteners and instrument and method for their placement

A clip, clip applier and method for ligating a tissue structure is provided. The applier has a two stage actuation. In the first stage, a tissue structure is positioned into the jaws of the clip applier The jaws close and lock to a preset force to compress and temporarily occlude the tissue structure. If satisfactorily positioned, the second stage is initiated in which a clip is advanced through the shaft of the clip applier in a closed position. At the distal end of the clip applier, the clip is opened slightly to capture the pre-compressed tissue structure, and is placed over the structure. The clip is then dissociated from the business end of the instrument. Preferably the clip comprises two leg members disposed in close proximity to one another joined from opposing directions by a connecting element. The connecting element restricts separation of the leg members with opposing spring members so as to provide substantially uniform parallel deflection of the leg members from each other.

A surgical stapler is provided which is insertable through an endoscopic tube to enable a surgeon to staple a hernia patch to tissue inside a body cavity. The endoscopic surgical stapler includes a staple cartridge pivotally mounted on the distal end of a support tube extending from a handle provided with an actuator mechanism for actuating a staple forming mechanism inside the staple cartridge to fasten staples to the tissue. The staple cartridge is adjustable to different angular orientations relative to the support tube. The staple actuator mechanism is operable to actuate the staple cartridge in any of the angular orientations. The support shaft is rotatable about its longitudinal axis relative to the handle to adjust the rotational orientation of the support shaft and the staple cartridge. The staple cartridge is rotatable about its longitudinal axis relative to the support shaft to adjust the rotational position of the staple cartridge relative to the support shaft. Separate actuator mechanisms are provided on the handle to control the pivotal movement of the staple cartridge, the rotation of the support shaft, and the rotation of the staple cartridge relative to the support shaft.

Endoscopic surgical stapling instrument with pivotable and rotatable

An electrosurgical instrument according to the present invention includes a handle, an elongated tube, an end effector, a pair of wireform conductors extending through the elongated tube from the handle to the end effector and a working tool such as, for example, a knife blade. The working tool being connected to the handle through a push bar which passes through the elongated tube. In an electrosurgical instrument according to the present invention, the push bar is positioned between the wireform conductors and is axially moveable with respect to the wireform conductors. In addition, in an electrosurgical instrument according to the present invention, the handle includes a coupling element to allow the wireform conductors and push bar to rotate with respect to the handle and to allow the push bar to move axially with respect to the wireform conductors and the handle.

Knife coupler mechanism for an endoscopic instrument

A surgical stapling instrument which has an elongated staple cartridge and anvil is disclosed. The anvil is movable relative to the cartridge from rearward to forward positions for insertion of tissue between these two components and clamping the tissue, respectively. A pair of spaced-apart ribs protrude from the anvil, and when the anvil is moved from its rearward to forward positions, these ribs are received into and slide within a groove embedded on the surface of the cartridge. In this manner, misalignment of the anvil and cartridge when tissue is being clamped is prevented or appreciably reduced, therefore reducing the chances of misforming the staples when the instrument is fired. The alignment features also act as tissue abutment surfaces to prevent the migration of tissue into a region where tissue is transected but not stapled.

Surgical clamping mechanism

A surgical instrument including a handle and a trigger is designed to be closed and latched by the operator, and includes a latch mechanism. The latch mechanism includes a latch on the grip, a latch knob including a latching notch on the trigger and a latch guide on the trigger to guide the latch hook into the latching notch.

Latch mechanism for surgical instruments

A clip applier and method for ligating a tissue structure is provided. The applier has a two stage actuation. In the first stage, a tissue structure is positioned into the jaws of the clip applier The jaws close and lock to a preset force to compress and temporarily occlude the tissue structure. If satisfactorily positioned, the second stage is initiated in which a clip is advanced through the shaft of the clip applier in a closed position. At the distal end of the clip applier, the clip is opened slightly to capture the pre-compressed tissue structure, and is placed over the structure. The clip is then dissociated from the business end of the instrument. Preferably the clip comprises two leg members disposed in close proximity to one another joined from opposing directions by a connecting element. The connecting element restricts separation of the leg members with opposing spring members so as to provide substantially uniform parallel deflection of the leg members from each other.

Sterile occlusion fasteners and instruments and method for their

A surgical stapling instrument for performing a circular anastomosis stapling operation is provided. The surgical instrument includes a stapling head assembly mounted by a curved shaft to an actuator handle assembly and incorporates an improved actuator mechanism for transmitting the required operating forces and movements from the actuator handle assembly through the curved shaft to an anvil and staple driver of the stapling head assembly. The stapling head assembly includes a longitudinally movable trocar detachably secured by one or more retainer clips on a hollow shaft of the anvil. When the trocar is retracted, the anvil shaft slides into a central support tube which aligns the anvil axially and circumferentially with a staple holder on the stapling head assembly. The retainer clips are locked against the trocar by the support tube and transmit tension from the trocar to the anvil with no tension load on the anvil shaft. The actuator mechanism permits adjustment of the anvil gap to produce a desired staple height and precludes actuation of the staple head assembly if the anvil gap is set outside of a predetermined range. Also, the actuator mechanism is adapted to both advance and retract the staple driver relative to the staple holder in the stapling head assembly. Further, an improved arrangement for attaching the support shaft to the stapling head assembly and to the actuator handle assembly is provided.

Surgical anastomosis stapling instrument

An endoscopic clip applying system as described which contains a venting system and a clip applying support system which prevents closure of the mechanism before firing. The applier's jaws are spaced apart no further than the width of the applier shaft, even when holding a clip. Also, the system ensures proper loading of the clips and prevents them from falling out during loading. Further, the system describes an easily manufacturable, positively opening system which has minimized size requirements. Furthermore, a lock-out mechanism is provided so that the mechanism may not be inadvertently fired. The shaft resists excessive torque as well as holds the clip in place during firing. There are provisions for sealant and non back-up of the clips, as well as features which make the clip properly placed for closure. In an alternate embodiment, the clip applier shaft rotates about its handle mechanism.

Endoscopic multiple ligating clip applier with rotating shaft

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Hamilton, OH, United States of America

J David Hughett