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US5507775: Tissue expansion and approximation device

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Filing Information

Inventor(s) Ralph Ger · Robert Oddsen ·
Assignee(s) Progressive Surgical Products Inc. ·
Attorney/Agent(s) Rosen, Dainow & Jacobs ·
Primary Examiner Gary Jackson ·
Application Number US8181762
Filing date 01/21/1994
Issue date 04/16/1996
Predicted expiration date 01/21/2014
U.S. Classifications 606/216  · 606/215  ·
International Classifications A61B 1704  ·
Kind CodeA
International Classifications 606148;150;151;212;213;215-218 ·
40 Claims, No Drawings


Abstract

A device applies continuous tension to skin adjacent an ulcerative area, to expand and approximate this skin until it covers the ulcerative area. The new device includes a frame which defines a path in which sliders move under the force of a constant tension spring. Each slider includes a hook-like element that engages and pulls the skin until the skin on opposite sides of the ulcerative area comes together.

Independent Claims | See all claims (40)

  1. 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.
  2. 33. A constant tension tissue expansion and approximation device for helping to restore skin to an open wound area of a patient who has relatively 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,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,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.
  3. 37. A method for treating a patient's open wound which is surrounded by healthier skin, comprising:a) engaging at least one edge of the healthier skin,b) urging said engaged edge of skin in a direction to cover said open wound, where said urging comprises applying a generally continuous force of generally constant magnitude to said edge of skin, andc) applying said generally continuous force of generally constant magnitude slowly for a period of time until said edge has extended and at least partially covers said open wound.
  4. 40.40. A constant tension issue expansion and approximation device for helping to restore skin to an open wound area of a patient who has relatively 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,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,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.

References Cited

U.S. Patent Documents

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Other Publications

"Complications of soft tissue expansion", O. Antonyshyn, J. S. Gruss, S. E. MacKinnon and R. Zuker, British Journal of Plastic Surgery, vol. 41, pp. 239-250 (1988).
"Long-Term Histopathologic Evaluation of Human Expanded Skin", L. Matturri, A. Azzolini, C. Riberti, A. M. Lavezzi, D. Cavalca, F. Vercesi, and C. Azzolini, Plastic and Reconstructive Surgery, Oct. 1992, vol. 90, No. 4, pp. 636-642.
"Use of Tissue Expansion in Podiatric Surgery", G. R. Zainer, J. R. Thul, and Scott J. Hoffman, Journal of the American Podiatric Medical Association, Jan. 1988, vol. 78, No. 1, pp. 34-40.
"Tissue Expansion as an Alternative to Skin Grafting for Closure of Skin Deficits", Gail R. Johnson, Paul Han, Joseph A. Giacopelli, Journal of the American Podiatric Medical Association, May 1992, vol. 82, No. 5, pp. 249-259.
"Fundamentals of Expanded Tissue", Shan R. Baker, Head & Neck, Jul./Aug. 1991, vol. 13, pp. 327-333.
"Tissue Expansion in the Treatment of Pressure Ulcers", Gaetano Esposito, Giovanni Di Caprio, Pasquale Ziccardi, and Nicolo Scuderi, Plastic and Reconstructive Surgery, Mar. 1991, vol. 87, No. 3, pp. 501-508.
"Efficacy of Operative Cure in Pressure Sore Patients", Joseph J. Disa, James M. Carlton, and Nelson H. Goldberg, Plastic and Reconstructive Surgery, Feb. 1992, vol. 89, No. 2, pp. 272-278.
"Continuous versus Conventional Tissue Expansion: Experimental Verification of a New Technique", Steven C. Schmidt, Samuel E. Logan, Jonathan M. Hayden, Sang Tae Ahn, and Thomas A. Mustoe, Plastic and Reconstructive Surgery, Jan. 1991, vol. 87, No. 1, pp. 10-15.
"Enhancement of Tissue Expansion by Anticontractile Agents", P. Lee, C. A. Squier, and J. Bardach, Plastic and Reconstructive Surgery, Oct. 1985, vol. 76, No. 4, pp. 604-610.
"Blood Flow in Expanded Tissue Treated with an Anticontractile Agent", John W. Canady, Kevin M. Kelly, Christopher A. Squier, and Janusz Bardach, Ann Otol Rhinol Laryngol, vol. 100, pp. 962-965 (1991).
"Progressive Would Closure with Constant Tension Traction: Combat Theater Application", COL Gustavo A. Escalera, Military Medicine, Jan. 1993, vol. 158, No. 1, pp. 66-63.
"Increased Survival and Vascularity of Random-Pattern Skin Flaps Elevated in Controlled, Expanded Skin", George W. Cherry, Eric Austad, Krystyna Pasyk, Kenneth McClatchey, and Rod J. Rohrich, Plastic and Reconstructive Surgery, Nov. 1983, vol. 72, No. 5, pp. 680-685.
"Use of the Subcutaneous Tissue Expander for Delayed Primary Closure of Flaps", John P. Santoro, Philip A. Radovic, and Nicholas A. Grumbine, The Journal of Foot Surgery, 1989, vol. 28, No. 3, pp. 225-232.
"Tissue Exapnsion: Dividend or Loan?", Eric David Austad, Steven B. Thomas, and Krystyna Pasyk, Plastic and Reconstructive Surgery, Jul. 1986, vol. 78, No. 1, pp. 63-67.

Referenced By

Document NumberAssigneeInventorsIssue/Pub Date
US5893879 MedChem Products, Inc. Bernard Hirshowitz et al. Apr 1999
US5830125 Scribner-Browne Medical Design Incorporated Robert M. Scribner et al. Nov 1998
US5968097 MXM Patrick Frechet et al. Oct 1999
US6254624 Progressive Surgical Products Robert Oddsen et al. Jul 2001
US5662714 M.X.M. Guy Charvin et al. Sep 1997
US5649960 Michael M. Pavletic Jul 1997
US6071309 Edward W. Knowlton Jun 2000
US7455681 Wound Care Technologies, LLC Robert C. Wilke et al. Nov 2008
US7361185 Canica Design, Inc. Michael T. O'Malley et al. Apr 2008
US7611521 Tendon Technology, Ltd. Lawrence M. Lubbers et al. Nov 2009
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US7208006 Wilhelm Fleischmann Apr 2007
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US8092491 Wilhelm Fleischmann Jan 2012
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US8183428 The Board of Trustees of the Leland Stanford Junior University Geoffrey C. Gurtner et al. May 2012
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