Ethicon Endo-surgery, Inc.

C. R. Bard, Inc.

Scott Nielsen Barton

Kip M Rupp

David H Ruder

Gregory D Bishop

Thomas J Sierocuk

Dario Vitali

Michael A Colbert

Kevin L Houser

Thomas W Huitema

Mark A Neurohr

Steven K Neuenfeldt

An ultrasonic clamp coagulator assembly that is configured to permit selective cutting, coagulation and clamping of tissue during surgical procedures. An elongated portion of the instrument can be configured for endoscopic applications and has an outside diameter of less than 6 mm. The construction includes a clamping mechanism, including a clamp arm pivotally mounted at the distal portion of the instrument, which is specifically configured to create a desired level of tissue clamping forces, exceeding 4 pounds when the trigger is fully closed. The clamping mechanism includes a two-piece pad design and pad material that enables the higher tissue clamping forces and a force-limiting mechanism that effectively smooths out abusive tissue forces. The assembly also features hand activation configured to provide an ergonomical grip and operation for the surgeon. Hand switches are placed in the range of the natural swing of the surgeon's thumb, whether gripping the surgical instrument right-handed or left handed.

Handle assembly having hand activation for use with an ultrasonic surgical instrument

The present invention is directed to a seed cartridge assembly including a cartridge body, a seed drawer slideably disposed within the cartridge body, a radiation shield slideably disposed around the cartridge body and a seed retainer in the seed drawer. Further embodiments of the present invention include a seed cartridge assembly as described above including a gravity lock between the seed drawer and the cartridge body. Further embodiments of the present invention include a seed cartridge assembly as described above, wherein the cartridge body includes a magnification lens positioned above the seed drawer. Further embodiments of the present invention include a seed cartridge assembly as described above wherein a seed channel extends axially along the seed drawer and a plurality of vents extending from the seed channel to an exterior surface of the seed drawer. Further embodiments of the present invention include a seed cartridge assembly as described above wherein the gravity lock includes a moveable locking element, a first locking recess in an interior surface of the cartridge body and a second locking recess in an exterior surface of the drawer opposite the first locking recess.

Brachytherapy seed cartridge

A needle or cylindrical element position lock includes a disposable template assembly having front and back templates halves which define an array of close-fitting through-holes to guide needles therethrough. A series of lock slides locks the positions of columns of needles positioned within the template. Each lock slide locks the position of one or more needles inserted into one or more series of the through- holes in the template, with a preferred embodiment locking two series of needles. Each lock slide has the capability of locking one or more series of needles inserted into through-holes in the needle guide template by an axial motion applied by a lock lever or cam. When the lock slide is moved axially, a locking function is provided by a wedge/clamp which engages an inserted needle. For a typical template arrangement, six lock slides are used to lock twelve columns of needles inserted into through-holes in the template assembly.

Needle position lock

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Loveland, OH, United States of America

Scott Nielsen Barton