US5456246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fat pad retractor
Assignee: Arthrex Inc
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Filing: 1994-02-23
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Granted: 1995-10-10
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Expires: 2014-02-23
Abstract
Abstract An apparatus and method for retracting the infrapatellar fat pad during arthroscopic knee surgery. The apparatus includes a silicone retractor strap for supporting the fat pad, a device for threading the strap into the arthroscopic operating compartment, and a segment of suture or other frangible connector for connecting the retractor strap to the threading device.
Inventors
- 👤 Reinhold Schmieding
- 👤 Donald K. Shuler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:29
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/02; A61B17/04; A61B17/06; A61B17/06166; A61B17/06004; A61B2017/06019; A61B90/00; A61B90/03; A61B2090/037
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
95 words
An apparatus for retracting a fat pad during arthroscopic knee surgery, comprising: a strap for retracting the fat pad, the strap comprising a proximal end, a distal end, a centrally disposed widened portion for supporting, inside the knee, the fat pad to be retracted, and means disposed on the proximal and distal ends which cooperate to adjustably and lockably connect the proximal and distal ends together outside the knee; an obturator for threading the strap behind the fat pad to be retracted; and a closed loop of suture material connecting the strap to the obturator.
Claim 2
Independent Claim
95 words
An apparatus for retracting a fat pad during arthroscopic knee surgery, comprising: a strap for retracting the fat pad, the strap comprising a proximal end, a distal end, a centrally disposed widened portion for supporting, inside the knee, the fat pad to be retracted, and means disposed on the proximal and distal ends which cooperate to adjustably and lockably connect the proximal and distal ends together outside the knee; an obturator for threading the strap behind the fat pad to be retracted; and a closed loop of suture material connecting the strap to the obturator.
Claim 3
Dependent Claim
12 words
The apparatus of claim 1, wherein the strap is made of silicone.
Claim 4
Independent Claim
77 words
An apparatus for retracting a fat pad during arthroscopic surgery, comprising: a strap for retracting the fat pad, the strap having a proximal end, a distal end, and a widened support section between the proximal and distal ends for supporting, inside the knee, the retracted fat pad; an arcuate-shaped cylindrical obturator for threading the strap behind the fat pad to be retracted; and a closed loop of suture material for connecting the threading member and the strap.
Claim 5
Independent Claim
77 words
An apparatus for retracting a fat pad during arthroscopic surgery, comprising: a strap for retracting the fat pad, the strap having a proximal end, a distal end, and a widened support section between the proximal and distal ends for supporting, inside the knee, the retracted fat pad; an arcuate-shaped cylindrical obturator for threading the strap behind the fat pad to be retracted; and a closed loop of suture material for connecting the threading member and the strap.
Claim 6
Dependent Claim
15 words
The apparatus of claim 3, wherein the obturator is formed of a surgically-acceptable plastic material.
Claim 7
Dependent Claim
19 words
The apparatus of claim 3, wherein the distal end of the strap includes an aperture for receiving the suture.
Claim 8
Dependent Claim
42 words
The apparatus of claim 3, wherein the distal end of the strap is formed in the shape of an arrow with a pointed head and the proximal end of the strap includes slots for receiving the pointed head of the distal end.
Claim 9
Dependent Claim
55 words
The apparatus of claim 6, wherein the distal end of the strap further comprises at least one locking wing, the locking wing having an arrowhead shape whereby, when the wing is drawn through one of the slots at the proximal end of the strap, the wing is locked to the proximal end of the strap.
Claim 10
Independent Claim
195 words
A method for retracting a fat pad during arthroscopic knee surgery, the method comprising the steps of: attaching a strap to an arcuate-shaped, cylindrical obturator with a closed loop of suture, the strap having a proximal end, a distal end, a centrally-disposed widened portion for supporting the fat pad to be retracted, and connecting means on the proximal and distal ends which cooperate to adjustably and lockably connect the proximal and distal ends together outside the knee; threading the strap into the knee through a first portal, behind the fat pad to be retracted and out of the knee through a second portal, such that the distal end of the strap extends outside of the knee from the first portal, the proximal end of the strap extends outside of the knee from the second portal, and the central portion of the strap is disposed behind and supports the fat pad to be retracted; connecting the proximal and distal ends of the strap together outside the knee using the connecting means provided on the proximal and distal ends; and adjusting the connection of the proximal and distal ends of the strap to retract the fat pad.
Claim 11
Independent Claim
195 words
A method for retracting a fat pad during arthroscopic knee surgery, the method comprising the steps of: attaching a strap to an arcuate-shaped, cylindrical obturator with a closed loop of suture, the strap having a proximal end, a distal end, a centrally-disposed widened portion for supporting the fat pad to be retracted, and connecting means on the proximal and distal ends which cooperate to adjustably and lockably connect the proximal and distal ends together outside the knee; threading the strap into the knee through a first portal, behind the fat pad to be retracted and out of the knee through a second portal, such that the distal end of the strap extends outside of the knee from the first portal, the proximal end of the strap extends outside of the knee from the second portal, and the central portion of the strap is disposed behind and supports the fat pad to be retracted; connecting the proximal and distal ends of the strap together outside the knee using the connecting means provided on the proximal and distal ends; and adjusting the connection of the proximal and distal ends of the strap to retract the fat pad.
Claim 12
Dependent Claim
30 words
The method of claim 8, further comprising the step of detaching the strap from the obturator after the strap has been threaded into the knee by severing the suture material.
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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) | 1998-10-09 | 1999-04-10 | 1999-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-09 | 2003-04-10 | 2003-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-09 | 2007-04-10 | 2007-10-10 | $7700.00 | Window Closed / Lapsed |