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Tissue expansion and approximation device

  • US 5,507,775 A
  • Filed: 01/21/1994
  • Issued: 04/16/1996
  • Est. Priority Date: 01/21/1994
  • Status: Expired due to Term
First Claim
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1. A constant tension tissue expansion and approximation device for helping to restore skin to an open wound area of a patient who has relative healthier skin outward of and surrounding the open wound area, the device comprising:

  • a) a frame including means thereon forming boundaries which define a path that extends in an axial direction, the path having remote and near ends, the frame having an exposed surface positionable to overlie the patient'"'"'s skin,b) a slider coupled to said frame and movable along said path, where said boundaries of the path define and control any non-axial displacement of the slider when it is moved axially along said path,c) engaging means carried by said slider for releasably engaging the healthier skin, andd) force application means urging said slider to move in the direction from said remote end of the path toward said near end of the path, said force application means providing a generally continuous force of generally constant magnitude on said slider regardless of the location of the slider along said path.

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