Edward Weck & Co.

Other

Edward Weck Incorporated

Taylor, William

Weck & Company, Inc.

Peters, Rudolph

Peters, Ronald L.

Ronald L Peters

William P Taylor

Rudolph W Peters

Activity clock

A surgical instrument for implanting one or more rows of staples in living tissue has a pair of juxtaposed beam members with forward portions that jointly define a thin gap in which the tissue may be received and clamped. A latch couples the beam members together at a location behind the tissue gap. Operation of a first actuator forces staples out of one of the beam members and into the tissue, the other beam member having indentations shaped to close the staples. A tensioner flexes the beam members to create internal stresses which resist spreading of the beam member tips in response to load forces that are exerted on the members by clamped tissue and the stapling operation. This assures that the gap has a uniform width along its length and thus assures that the successive staples are each formed into an optimum configuration. The tensioner is actuated prior to and independently of operation of the first actuator and thus does not require exertion of additional effort nor interfere with tactile feedback to the surgeon during the stapling operation.

Surgical stapler

A tool for storing dispensing, and applying hemostatic clips includes a shell-like housing, and a pair of ring-handle actuating levers extending therefrom. An elongated dispensing and applying portion extends longitudinally from the housing, and includes a jaw strut extending fixedly from the housing with a pair of laterally opposed jaw members pivotally supported on a distal portion thereof. A channel-like jaw housing extends from the housing in longitudinally translatable fashion, and is received about the jaw strut and jaw members. A magazine member secured to the jaw strut stores a plurality of hemostatic clips in serial, end to end fashion, and is disposed to deliver the distal-most clip between the open jaw members. A feeder slide adjacent to the jaw strut is resiliently biased to urge the clip toward the distal end of the jaw members. Within the housing a shuttle block is disposed for longitudinal translation by squeezing of the levers. A flexible band extends from the shuttle block, about a pulley on the jaw housing, to the feeder slide. As the shuttle is urged distally, the band pulls the feeder slide proximally to clear the jaw members. At the limit of travel of the slide, the band tension on the pulley then drives the jaw housing distally to translate about the jaw members, closing the jaws and crimping the clip completely flat. The shuttle also decrements a counter wheel to show the number of clips remaining in the tool.

Automatic hemostatic clip applier

A method and apparatus for storing, dispensing, and applying surgical staples includes a pistol-like tool having a handle portion with a manually movable trigger lever, and a rotatable barrel portion with a staple track for storing staples in parallel, stacked, column fashion, the axis of the column extending generally colinearly with the barrel axis. The staples are urged distally in the track, and the distal track portion is curved out of axial alignment so that the distal staples are urged into points-first alignment. A form tool is slidably disposed in the barrel portion and adapted to advance and urge the distal-most staple against an anvil tool to crimp the staple. The form tool includes a drag spring which engages the distal-most staple in the staple track as the form tool retracts after a crimping cycle, pulling the distal-most staple from the track into a dispensing position for the next dispensing cycle. A drive block connected to the form tool and the trigger lever is mounted in the apparatus for reciprocal translation along a coaxial drive track. The drive block includes a pawl engaging ratchet teeth in the drive track, so that the block is urged distally by trigger actuation and proximal translation is prevented. The pawl includes a release slide actuated by translation of the block to the distal end of the drive track, coincident with full distal translation of the form tool and crimping of the dispensed staple, the release slide disengaging the pawl and allowing the drive block to return proximally.

Method and apparatus for storing, dispensing and applying surgical

A method and apparatus for storing and automatically dispensing and applying surgical staples in serial fashion includes a pistol-like tool having means for storing a large plurality of staples in parallel, stacked column fashion aligned along the longitudinal (barrel) axis of the tool. A form tool and an anvil tool extend longitudinally parallel to the axis, and are advanced in synchronism by actuation of a trigger lever. The form tool includes a pair of arms which impinge upon and rotate the legs of the staple about the web portion thereof to dispose the staple in a points-first dispensing orientation. The form tool advances the staple to the distal dispensing end of the tool, where it drives the staple into a portion of the anvil and crimps the staple thereabout. Release of the trigger causes an elevator member to separate the next distal staple inthe column from its column alignment into postion to be engaged by the anvil tool and form tool at the start of the subsequent dispensing cycle. A trigger actuation mechanism prevents release of the trigger lever until the dispensed staple is completely crimped in the tissue.

Method and apparatus for storing, dispensing, and applying surgical

A tool for storing dispensing, and applying hemostatic clips includes a shell-like housing, and a pair of ring-handle actuating levers extending therefrom. An elongated dispensing and applying portion extends longitudinally from the housing, and includes a jaw strut extending fixedly from the housing with a pair of laterally opposed jaw members pivotally supported on a distal portion thereof. A channel-like jaw housing extends from the housing in longitudinally translatable fashion, and is received about the jaw strut and jaw members. A magazine member secured to the jaw strut stores a plurality of hemostatic clips in serial, end to end fashion, and is disposed to deliver the distal-most clip between the open jaw members. A feeder slide adjacent to the jaw strut is resiliently biased to urge the clip toward the distal end of the jaw members. Within the housing a shuttle block is disposed for longitudinal translation by squeezing of the levers. A flexible band extends from the shuttle block, about a pulley on the jaw housing, to the feeder slide. As the shuttle is urged distally, the band pulls the feeder slide proximately to clear the jaw members. At the limit of travel of the slide, the band tension on the pulley then drives the jaw housing distally to translate about the jaw members, closing the jaws and crimping the clip completely flat. The shuttle also decrements a counter wheel to show the number of clips remaining in the tool.

A device for applying a plurality of hemoclips to blood vessels and the like includes a longitudinally disposed frame having a pistol grip and an opposed trigger lever extending from the proximal end thereof. A narrow, internal passageway extends the length of the frame, from a loading opening at the proximal end to a fixed lower jaw at the distal end of the frame. A plurality of U-shaped hemoclips is disposed in the passageway with the points thereof extending toward the distal jaw portion. An upper jaw extends from a clevis member which straddles the frame and is pivotally joined to an upper medial portion thereof. The trigger lever is pivotable to cause the clevis member to pivot upwardly and the upper jaw to close upon the lower jaw to crush a hemoclip disposed therebetween. A piston resiliently biased in the internal passageway urges the hemoclips toward the jaw portion, and a feed release lever is disposed at the proximal end of the passageway to discharge a hemoclip from the passageway to the jaw portion with each full actuation of the upper jaw.

Growing community of inventors

Danville, CA, United States of America

Ronald L Peters