US7077845B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical abrader with suction port proximal to bearing
Assignee: Arthrex Inc
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Filing: 2004-03-11
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Granted: 2006-07-18
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Expires: 2024-03-11
Abstract
Abstract An apparatus for abrading tissue includes a bearing tube having distal and proximal ends, and a suction port formed distally in a sidewall of the bearing tube. An inner tube disposed within the bearing tube has a distal opening, the distal opening being located proximal of the suction port in the sidewall of the bearing tube. A solid transition region extending distally from the inner tube is disposed distal to the distal opening. An abrading element supported distally by the solid transition region is used to perform orthopedic abrading procedures. The outer diameter of the abrading element is greater than the inner diameter of the bearing tube. Debris generated by abrading procedures is aspirated through the suction port formed in the sidewall of the bearing tube and into the lumen of the inner tube. A hooded sheath extends distally from the bearing tube, or optionally from a sheath tube provided over the bearing tube.
Inventors
- 👤 Randall L. Hacker
- 👤 John W. Schmieding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:11
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/320016; A61B17/32002; A61B2017/320004; A61B2217/00; A61B2217/002; A61B2217/005
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
121 words
An apparatus for abrading tissue, comprising: a bearing tube having a distal end and a proximal end; a suction port formed distally in a sidewall of the bearing tube, the suction port being spaced from the distal end of the bearing tube; an inner tube disposed within the bearing tube and having a distal suction opening, the distal suction opening being located proximal of the suction port in the sidewall of the bearing tube; a solid transition region extending distally from the inner tube and disposed distal to the distal suction opening; a distal bearing sleeve disposed on the solid transition region extending distally from the inner tube; and an abrading element disposed distally and supported on the solid transition region.
Claim 2
Independent Claim
121 words
An apparatus for abrading tissue, comprising: a bearing tube having a distal end and a proximal end; a suction port formed distally in a sidewall of the bearing tube, the suction port being spaced from the distal end of the bearing tube; an inner tube disposed within the bearing tube and having a distal suction opening, the distal suction opening being located proximal of the suction port in the sidewall of the bearing tube; a solid transition region extending distally from the inner tube and disposed distal to the distal suction opening; a distal bearing sleeve disposed on the solid transition region extending distally from the inner tube; and an abrading element disposed distally and supported on the solid transition region.
Claim 3
Dependent Claim
36 words
The apparatus of claim 1 , wherein the solid transition region has an outer diameter smaller than an inner diameter of bearing tube to provide a clearance between the solid transition region and the bearing tube.
Claim 4
Dependent Claim
23 words
The apparatus of claim 2 , wherein the distal suction opening is arranged operationally to be in constant fluid communication with the clearance.
Claim 5
Dependent Claim
17 words
The apparatus of claim 1 , further comprising a proximal bearing sleeve disposed on the inner tube.
Claim 6
Dependent Claim
28 words
The apparatus of claim 1 , wherein the solid transition region extending distally from the inner tube is attached to a support disposed adjacent the distal suction opening.
Claim 7
Dependent Claim
16 words
The apparatus of claim 1 , wherein an outer diameter of the inner tube is uniform.
Claim 8
Dependent Claim
16 words
The apparatus of claim 1 , wherein the inner diameter of the inner tube is uniform.
Claim 9
Dependent Claim
20 words
The apparatus of claim 1 , further comprising a drive assembly attached to the proximal end of the inner tube.
Claim 10
Dependent Claim
26 words
The apparatus of claim 8 , wherein the drive assembly includes suction ports extending radially, the suction ports connecting to a lumen of the inner tube.
Claim 11
Dependent Claim
24 words
The apparatus of claim 1 , wherein the abrading element has an outer diameter substantially equal to an outer diameter of the bearing tube.
Claim 12
Dependent Claim
38 words
The apparatus of claim 1 , further comprising a sheath tube in which the bearing tube is disposed, the sheath tube including a hooded sheath formed on a distal end and at least partially surrounding the abrading element.
Claim 13
Independent Claim
171 words
A method of abrading tissue, comprising: proximating tissue to be abraded with an abrading instrument, the abrading instrument including: a bearing tube having a distal end and a proximal end, and a suction port formed distally in a sidewall of the bearing tube, the suction port being spaced from the distal end of the bearing tube; an inner tube disposed within the bearing tube and having a distal suction opening, the distal suction opening being located proximal to the suction port in the sidewall of the bearing tube; a solid transition region extending distally from the inner tube and disposed distal to the distal suction opening; a distal bearing sleeve disposed on the solid transition region extending distally from the inner tube; a proximal bearing sleeve disposed on the inner tube; and an abrading element disposed distally on the solid transition region; abrading the tissue with the abrading element; and aspirating debris generating by abrading the tissue through the suction port and into the inner tube through the distal suction opening.
Claim 14
Independent Claim
171 words
A method of abrading tissue, comprising: proximating tissue to be abraded with an abrading instrument, the abrading instrument including: a bearing tube having a distal end and a proximal end, and a suction port formed distally in a sidewall of the bearing tube, the suction port being spaced from the distal end of the bearing tube; an inner tube disposed within the bearing tube and having a distal suction opening, the distal suction opening being located proximal to the suction port in the sidewall of the bearing tube; a solid transition region extending distally from the inner tube and disposed distal to the distal suction opening; a distal bearing sleeve disposed on the solid transition region extending distally from the inner tube; a proximal bearing sleeve disposed on the inner tube; and an abrading element disposed distally on the solid transition region; abrading the tissue with the abrading element; and aspirating debris generating by abrading the tissue through the suction port and into the inner tube through the distal suction opening.
Claim 15
Dependent Claim
16 words
The method of claim 12 , wherein the tissue to be abraded is in a knee.
Claim 16
Dependent Claim
12 words
The method of claim 12 , wherein the abrading element is rotated.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2009-07-17 | 2010-01-16 | 2010-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-07-17 | 2014-01-16 | 2014-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-07-17 | 2018-01-16 | 2018-07-18 | $7700.00 | Window Closed / Lapsed |