Patent ID: 8197469
Filing Date: 2012-06-12
Classification: A61B,Y10T

Abstract:
1. A controlled relative motion system permitting a controlled motion member therein, joined to a base member therein, to selectively move with respect to that base member, said system comprising: a base support; a manipulable support; a plurality of doubled pivoting links each having therein a base link and a manipulable link rotatably coupled to one another by a link hinge supported both by said base link and said manipulable link, said base link in each of said plurality of doubled pivoting links being rotatably coupled to said base support by a base hinge supported both by said base link and said base support so as to be rotatable about a corresponding base link axis, and said manipulable link in each of said plurality of doubled pivoting links being rotatably coupled to said manipulable support by a manipulable hinge supported both by said manipulable link and said manipulable support so as to be rotatable about a corresponding support link axis; and a plurality of force imparting members spaced apart from one another, each positioned to have at least a part thereof across from one another extending in a common direction within a supporting structure having a unitary wall therein provided completely surrounding all of said parts of said force imparting members in a plane perpendicular to said common direction with said unitary wall extending along said parts of said force imparting members therein parallel thereto such that said manipulable support is positioned outside said supporting structure adjacent an end thereof, and at least one of said force imparting members in said plurality thereof being coupled to said base link in one of said plurality of doubled pivoting links so that repositionings of at least portions of that force imparting member within said supporting structure in said common direction forces that said base link to rotate about its corresponding said base link axis, and another of said plurality of force imparting members being coupled to said base support so that repositionings of at least portion of that force imparting member within said supporting structure in said common direction forces said base support to move toward or away from both at least a portion of that said force imparting member and said end of said supporting structure without repositioning in said common direction of said one of said plurality of force imparting members coupled to a said base link.