04863133 is referenced by 263 patents and cites 32 patents.

An instrument-supporting, articulated device has a distal end capable of supporting an instrument in the region of a surgical operating site. The device has at least one joint that supports a movable distal support element relative to a proximal support, the joint being associated with a mode selector. The joint has structure capable, upon selection of a first mode of operation by the selector, of enabling relatively free motion of the joint for achieving a desired position of the instrument and the joint has structure capable, upon selection of a second mode of operation by the selector, to set the position of the instrument in space with lightly loaded restraint. The lightly loaded restraint is of a value that, while the second mode continues to be selected, the user may adjust the position of the instrument by application of a light force to the instrument and upon release of such light force by the user, the instrument will remain in the newly adjusted position.

Title
Arm device for adjustable positioning of a medical instrument or the like
Application Number
7/54431
Publication Number
4863133
Application Date
May 26, 1987
Publication Date
September 5, 1989
Inventor
Leonard Bonnell
Huntingdon Valley
PA, US
Assignee
Leonard Medical
PA, US
IPC
F16M 11/14
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