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Retractor for soft tissue for example brain tissue

  • US 3,882,855 A
  • Filed: 11/12/1973
  • Issued: 05/13/1975
  • Est. Priority Date: 11/12/1973
  • Status: Expired due to Term
First Claim
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1. A retractor for tissue comprising:

  • a deformable metal blade having a pair of opposite faces and a peripheral edge bounding and interconnecting said faces; and

    a sheath enveloping at least a part of said blade, said sheath comprising a cover portion covering at least said part of both faces of said blade and having an exposed bearing face for bearing against brain tissue, and a skirt portion extending from said cover portion and projecting to a free edge beyond said peripheral edge, said portions comprising a material which is non-adherent to brain tissue the skirt being thinner adjacent to its free edge than it is adjacent to the peripheral edge of the blade and being sufficiently flexible as to bend upon contact with soft tissue such as brain tissue without cutting, tearing, or bruising said tissue.

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