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Pivotal brace for prosthesis

  • US 5,772,619 A
  • Filed: 01/31/1997
  • Issued: 06/30/1998
  • Est. Priority Date: 04/07/1995
  • Status: Expired due to Fees
First Claim
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1. A rotatable brace forming part of a prothesis for supporting a human joint including a first wrapping support supporting a first limb member, a second wrapping support for supporting a second limb member, said rotatable brace being secured to said wrapping supports for permitting limited rotation of said joint:

  • said rotatable brace comprising a first strap secured to one of said wrapping supports having a main portion and a portion of reduced width at one end terminating in a generally semicircular portion, a hole centered in said semicircular portion, and a pair of shoulder portions joining said main portion with said portion of reduced width;

    a second strap secured to the other of said wrapping supports having a hole generally centered at one end thereof, and a plurality of threaded ports positioned radially outwardly of said hole;

    a washer of low friction plastic material interposed between said first and second straps and having a centrally located hole and a plurality of ports aligned with said threaded ports;

    a pivot pin extending through said holes in said first and second straps and through said washer; and

    a pair of screws having upstanding heads extending through a pair of said ports in said washer and threadedly engaged with corresponding said threaded ports, said heads limiting rotation of said brace when contacted by said shoulder portions, said screws being deflectable and said washer being deformable to absorb forces at said rotation limit to avoid damage to said brace.

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