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Articulated prosthetic wrist

  • US 4,613,331 A
  • Filed: 10/05/1984
  • Issued: 09/23/1986
  • Est. Priority Date: 10/05/1984
  • Status: Expired due to Fees
First Claim
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1. An articulated artificial wrist for use with a hand prosthesis, comprising:

  • contractible ball means, said ball means comprising two semispherical ball members and bias means positioned between the semispherical ball members so as to bias the two semispherical ball members apart to a normally expanded configuration;

    connecting means having proximal and distal ends, said proximal end being secured to the ball means and said distal end being secured to the hand prosthesis;

    socket means for receiving the ball means, said socket means adapted to secure the ball means in a desired orientation when the ball means is in the normally expanded configuration;

    means for contracting the ball means such that, when contracted, said two semispherical ball members are both released from engagement with said socket means and the ball means is capable of being positioned within the socket means; and

    means for securing said socket means to a limb prosthesis for attachment to the remaining portion of an amputated limb.

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  • 3 Assignments
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