Codman & Shurtleff, Inc.

Raphael F Meloul

Jose E Lizardi

Herbert H Loeffler

Frederick W Faller

Charles Bridgham Worrick, Iii

Robert G Kraus

Victor B Agbodoe

Philip C Walker

Richard C Schneider

Joseph A Cherry

Jose F Lizardi

A surgical drill assembly is provided having a clutch mechanism that requires a sufficient axial load on cutting surfaces of the drill to enable rotation of the drill. Rotation of the drill ceases almost immediately upon the axial load falling below the predetermined axial load threshold. In one embodiment the drill assembly is disposable, and is virtually impossible to disassemble and reassemble to an operative form. In another embodiment the drill assembly is reusable. The reusable embodiment includes a drill body that enables quick and easy attachment and detachment of a drill head. The reusable drill body is of a unitary construction that can be sterilized and reused without any disassembly.

Surgical drill

A surgical clip applier includes a pair of pivotal housing sections on which are provided a pair of clip actuating jaws. An elongated clip sleeve which receives a plurality of surgical clips arranged front to back in a row is mounted for longitudinal reciprocating movement between the housing sections. The clip sleeve includes a pair of clip retaining jaws adjacent to its open front to receive and hold a surgical clip advanced from the clip sleeve between the clip actuating jaws on the housing sections. A pusher is mounted on the clip sleeve for engaging the rearmost clip in the row. The surgical clip applier includes a ratchet mechanism which is operable each time the clip sleeve is reciprocated to advance the pusher and the row of clips by one step corresponding to the length of one surgical clip in the row. The ratchet mechanism includes a first ratchet on the clip sleeve and a second ratchet on one of the housing sections which are engaged by pawls on opposite sides of the pusher. The surgical clip applier operates by a double pump action in which the housing sections are twice pivoted together and released. In the first pump action, the clip sleeve is reciprocated to load the frontmost surgical clip between the clip retaining jaws and to advance the surgical clip to a load position between the clip actuating jaws. In the second pump action, the clip actuating jaws are pivoted into engagement with the clip retaining jaws to actuate the surgical clip held by the clip retaining jaws.

Surgical clip applier with reciprocating clip sleeve and dual ratchet

A pin assembly for use in a skull clamp having a cylindrical non-metallic housing and a metallic rigid pin with a conical point fitted in the non-metallic housing. The non-metallic housing has fingers extending from a cavity in the surface of the housing and are positioned at an angle towards the pin end of the housing to hold the pin assembly in the skull clamp.

Skull clamp pin assembly

Growing community of inventors

Randolph, MA, United States of America

Raphael F Meloul