Orthotic hinge system with spring-biased pawl control of...

Details Orthotic hinge system with spring-biased pawl control of... Orthotic hinge system with spring-biased pawl control of...

2007-05-18

2010-02-16

Brown, Michael A. (Department: 3772)

Surgery: splint, brace, or bandage

Orthopedic bandage

Splint or brace

C602S023000

Reexamination Certificate

active

07662118

ABSTRACT:
The invention relates to an orthopedic hinge system, including an outer and an inner lateral base, each substantially complemental in peripheral dimension to each other, the bases each having a major vertical axis, the inner base having a recess. Also included is an elongate distal member having a semi-circular pivot end including, upon a portion of the end, ratchet teeth pointing in a counter-clockwise direction, the pivot end rotationally secured to both of the bases. Further included is an elongate proximal member having a transverse end element proportioned for complemental securement within the recess of the inner base, transverse end element including an axis of rotation co-linear with an axis of rotation of the distal member and defining an axis of rotation of the pivot end of the distal member. The system also includes a cam lever including a pawl surface having teeth pointing in a clockwise direction and, upon contact with the ratchet teeth of the distal member, then complemental therewith, the lever having an axis of rotation co-linear with a second axis within a transverse end element of the proximal member, the lever also including a radial projection disposed radially oppositely from the pawl surface to which an end of a biasing spring is attached.

REFERENCES:
patent: 2943622 (1960-07-01), Nelson
patent: 4502472 (1985-03-01), Pansiera
patent: 4928676 (1990-05-01), Pansiera
patent: 5776086 (1998-07-01), Pansiera
patent: 6960175 (2005-11-01), Myers

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