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Surgical apparatus

  • US 4,877,026 A
  • Filed: 07/22/1988
  • Issued: 10/31/1989
  • Est. Priority Date: 07/22/1988
  • Status: Expired due to Term
First Claim
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1. A surgical apparatus for insertion into the eye for surgical procedures, said apparatus comprising:

  • an elongated rigid tubular housing of circular cross section having an inner tubular wall supporting therein a first and a second elongated shaft member;

    said first and said second elongated shaft members each having juxtaposed inner surfaces slidable relative to each other for a predetermined stroke distance, said first and said second shaft members further having outer surfaces terminating in corners, said corners abutting said inner tubular wall, said shaft members being held in a spacial relationship relative to each other and said inner tubular wall by said corners, whereby said shaft members occupy only a portion of the space in said inner tubular housing, thus leaving a freeboard space between said outer surfaces and the inner tubular wall;

    said first shaft member having at one end, a driven end, and at the other end a first operable means disposed thereon;

    said second shaft member being fixedly disposed in said tubular housing and having a second operable means disposed thereon, said second operable means being cooperatable with said first operable means to perform a surgical procedure; and

    means for restraining the motion of said first shaft member on a plane parallel to the axis of said tubular housing and for limiting the distance of a stroke of said first shaft member relative to said second shaft member, whereby to limit the movement of said first operable means relative to said second operable means.

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