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US5707383A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of removing soft tissue in the middle ear

Assignee: Medtronic Xomed LLC
•
Filing: 1995-10-05
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Granted: 1998-01-13
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Expires: 2015-10-05
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Abstract

Abstract A surgical abrading instrument for removing soft bodily tissue includes a stiffening support member and an abrasive member formed of a rubbery polymeric material. The abrasive member is mounted on the stiffening support member and includes an integral abrasive surface having a roughness to remove soft bodily tissue when the abrasive member is driven against the tissue via movement of the stiffening support member. The abrasive member can be of integral one-piece construction, in which case the abrasive member can also be formed simultaneously with attachment to the stiffening support member. In one embodiment, the stiffening support member includes a cylindrical shaft with proximal and distal ends, and the abrasive member is formed at the distal end of the shaft for rotation about a longitudinal axis thereof.

Inventors

  • 👤 F. Barry Bays
  • 👤 Dan H. Treace

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 02:29
CPC Classifications
A; A61; A61F; A61F11/00; A61F11/20; A61B; A61B17/00; A61B17/32; A61B17/320016; A61B17/32002; A61B2017/320004

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 74 words
A method of removing soft bodily tissue in the middle ear comprising the steps of positioning an abrasive member formed of a rubbery polymeric material in the middle ear adjacent the soft bodily tissue, the abrasive member being of integral one-piece construction and having an abrasive surface with a roughness to remove soft bodily tissue when moved against the tissue; and moving the abrasive surface of the abrasive member against the soft bodily tissue.
Claim 2
Independent Claim 74 words
A method of removing soft bodily tissue in the middle ear comprising the steps of positioning an abrasive member formed of a rubbery polymeric material in the middle ear adjacent the soft bodily tissue, the abrasive member being of integral one-piece construction and having an abrasive surface with a roughness to remove soft bodily tissue when moved against the tissue; and moving the abrasive surface of the abrasive member against the soft bodily tissue.
Claim 3
Dependent Claim 35 words
A method of removing soft bodily tissue as recited in claim 1 wherein said moving step includes driving the abrasive member via movement of a stiffening support member upon which the abrasive member is mounted.
Claim 4
Dependent Claim 27 words
A method of removing soft bodily tissue as recited in claim 2 wherein said moving step includes rotating said stiffening support member about a longitudinal axis thereof.
Claim 5
Dependent Claim 24 words
A method of removing soft bodily tissue as recited in claim 2 wherein said positioning step includes positioning the abrasive member adjacent a cholesteatoma.

References Cited (Backward Citations)

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US4681106A Cited
US4917085A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2001-01-12 2001-07-14 2002-01-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2005-01-12 2005-07-14 2006-01-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2009-01-12 2009-07-14 2010-01-13 $7700.00 Window Closed / Lapsed

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