05762255 is referenced by 769 patents and cites 57 patents.

This invention provides surgical instruments having improved lockout mechanisms. The surgical instruments are of the type which have an operating mechanism for repeatedly performing a surgical procedure and a control mechanism for manipulating the instrument between a neutral position and a ready position for performing the surgical procedure. The instruments comprise a passive lockout assembly and an active lockout assembly. The passive lockout assembly includes a key which is operatively connected to the control mechanism. The key immobilizes the operating mechanism unless the instrument is in the ready position. The active lockout assembly includes a plunger operatively connected to a manually operable switch. The plunger immobilizes the operating mechanism unless the switch is operated and reengages the operating mechanism each time the instrument is used. Each time the instrument is used to perform the surgical operation, therefore, the instrument of the instrument must be in the ready position and the active lockout switch must be operated. Otherwise, the operating mechanism of the instrument is immobilized by one or both of the passive and active lockout assemblies.

Title
Surgical instrument with improvement safety lockout mechanisms
Application Number
8/604106
Publication Number
5762255
Application Date
February 20, 1996
Publication Date
June 9, 1998
Inventor
Stephen F Peters
Hickory Corners
MI, US
Scott H Heneveld
Hickory Corners
MI, US
Lars R Chrisman
Plano
TX, US
Agent
Howard & Howard
Assignee
Richard Allan Medical
MI, US
IPC
A61B 17/072
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