Invention Grant
US08425411B2 Windowed flexor tendon sheath retractor and dilator 有权
窗口屈肌腱鞘牵开器和扩张器

  • Patent Title: Windowed flexor tendon sheath retractor and dilator
  • Patent Title (中): 窗口屈肌腱鞘牵开器和扩张器
  • Application No.: US12942348
    Application Date: 2010-11-09
  • Publication No.: US08425411B2
    Publication Date: 2013-04-23
  • Inventor: Dennis L. Steffen
  • Applicant: Dennis L. Steffen
  • Main IPC: A61B1/32
  • IPC: A61B1/32
Windowed flexor tendon sheath retractor and dilator
Abstract:
A surgical device and method used to assist in the surgical repair of damaged and/or severed tendons. In the present invention, the device is comprised of a distal conical member, having an inner and outer surface, a tapered tip, a rounded end, and windowed openings on either side of axial centerline passing through the inner and outer surfaces. In the same embodiment, the device is comprised of a proximal concave convex member with an inner and outer surface, a tapered tip, and a rounded end, tapering both in width and thickness to the tip. The present invention further discloses a method of passing a severed flexor tendon through the tendon sheathing to the repair site aiding in the passage of the severed tendon through the edges of the pulleys in the flexor tendon sheath, wherein the distal conical member of the device disclosed in the present invention is introduced into the edge of a flexor tendon sheath's pulley and a severed tendon end is passed along the inner surface of the conical member allowing the tendon to be reintroduced into the sheathing with minimal trauma. The present invention further discloses a method of dilation of the pulleys in the flexor tendon sheath, wherein the proximal concave convex member of the device disclosed in the present invention is introduced into the edge of a flexor tendon sheath's pulley to a desire depth and left in place until the desired amount of dilation is achieved the tendon is then introduced back into the sheathing utilizing the afore described method.
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