05405073 is referenced by 376 patents and cites 20 patents.

The present invention provides a flexible support shaft assembly which is capable of bending transversely relative to its longitudinal axis or centerline with a predetermined limit on the bending range. The flexible support shaft assembly comprises a first helical member with a series of coils of round cross section and a second helical member with a series of coils of wedge-shaped cross section. The first and second helical members are coiled together along a common longitudinal axis with the round coils alternating with the wedge-shaped coils which separate the adjacent round coils from each other when the support shaft assembly is straight. The wedge-shaped coils are slidable relative to the round coils to allow the support shaft assembly to bend into a curved shape until the round coils on the inside of the bend engage each other and limit the bending range.

Title
Flexible support shaft assembly
Application Number
8/162557
Publication Number
5405073
Application Date
December 6, 1993
Publication Date
April 11, 1995
Inventor
David S Porter
Middlebury
CT, US
Agent
Charles P Boukus
Paul A Coletti
Assignee
Ethicon
NJ, US
IPC
A61B 17/068
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