US5298012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tendon graft preparation workstation
Assignee: Allegiance Corp
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Filing: 1993-01-21
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Granted: 1994-03-29
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Expires: 2013-01-21
Abstract
Abstract A device for holding a tendon graft in position as the tendon is scraped and sutured is described. The device includes a pair of tension arms that can be moved in both a horizontal and vertical plane. Horizontal movement of the tension arms can be used to adjust the amount of tension that is applied to a tendon graft. Vertical movement of the tension arms can be used to position the tendon graft in a location which enables medical personnel to more easily suture parallel lengths of a graft together.
Inventors
- 👤 Kurt E. Handlos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:17
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/08; A61B; A61B90/00
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
166 words
A device for tendon graft preparation, comprising: a pair of tension arms for positioning and tensioning a tendon graft, at least one of said tension arms being movable in a horizontal plane to place tension on said graft, and both of said tension arms being movable in a vertical plane to position said graft; a pair of height-adjusting arms, each of said height-adjusting arms being attached to one of said tension arms, said height-adjusting arms being independently rotatable, from each other, about a central axis to provide a means for adjusting the vertical position of each of said tension arms; a base to which said height adjusting arms are pivotally mounted, said base being positionable on a table; a surface preparation area supported by said base, said surface preparation area being suitable for supporting said graft while said graft is being scraped or sutured; and said height adjusting arms being rotatable to position said tension arms and said graft in contact with said surface preparation area.
Claim 2
Independent Claim
166 words
A device for tendon graft preparation, comprising: a pair of tension arms for positioning and tensioning a tendon graft, at least one of said tension arms being movable in a horizontal plane to place tension on said graft, and both of said tension arms being movable in a vertical plane to position said graft; a pair of height-adjusting arms, each of said height-adjusting arms being attached to one of said tension arms, said height-adjusting arms being independently rotatable, from each other, about a central axis to provide a means for adjusting the vertical position of each of said tension arms; a base to which said height adjusting arms are pivotally mounted, said base being positionable on a table; a surface preparation area supported by said base, said surface preparation area being suitable for supporting said graft while said graft is being scraped or sutured; and said height adjusting arms being rotatable to position said tension arms and said graft in contact with said surface preparation area.
Claim 3
Dependent Claim
19 words
A device as recited in claim 1 wherein: each of said tension arms are rotatable about a central axis.
Claim 4
Dependent Claim
22 words
A device as recited in claim 2 wherein: each of said tension arms are rotatable about a central axis by 360 degrees.
Claim 5
Dependent Claim
31 words
A device as recited in claim 1, further comprising: horizontal locking means for locking in a fixed horizontal position any of said tension arms that are movable in a horizontal plane.
Claim 6
Dependent Claim
66 words
A device as recited in claim 4, wherein: said locking means further includes a self-locking screw that when rotated in a clockwise direction will lock said tension arm in a fixed horizontal position, and when rotated in a counter-clockwise direction will horizontally release said tension arm and said locking means further including means for self locking to prevent accidental removal of said screw from said device.
Claim 7
Dependent Claim
17 words
A device as recited in claim 1, wherein: said surface preparation area further includes a non-slip surface.
Claim 8
Dependent Claim
20 words
A device as recited in claim 1, wherein: said base comprises a means for removably mounting said surface preparation area.
Claim 9
Dependent Claim
19 words
A device as recited in claim 7, further comprising a pair of height-adjusting arms pivotally mounted on said base.
Claim 10
Dependent Claim
42 words
A device as recited in claim 7, wherein said base further includes: a trough for preserving said tendon after said tendon has been prepared for re-implantation into a patient, said trough being able to contain a preserving solution for soaking said tendon.
Claim 11
Dependent Claim
21 words
A device as recited in claim 7, wherein said base further includes measuring indicia for measuring the length of a tendon.
Claim 12
Dependent Claim
33 words
A device as recited in claim 7, wherein said base further includes: two recessed gripping areas for lifting a positioning said base, said gripping areas being positioned on opposite ends of said base.
Claim 13
Dependent Claim
21 words
A device as recited in claim 11, wherein said base further includes: gripping means for positioning said base on a table.
Claim 14
Dependent Claim
71 words
A device as recited in claim 7, wherein: said means for removably mounting said surface preparation area includes a dovetail grove for receiving said surface preparation area; said surface preparation area includes a sheet of material having a non-skid upper surface; means for locking said surface preparation area in a lateral position to prevent movement of said surface preparation area while a tendon is being scraped on said surface preparation area.
Claim 15
Dependent Claim
96 words
A device as recited in claim 13, wherein said locking means includes: a permanent stop lock post at a first end of said base to prevent said surface preparation area from sliding beyond said first end; and a releasable stop lock at a second end of said base to allow said surface preparation area to be slid out of said groove when said releasable stop lock is in a first position and to allow said surface preparation area to be locked in position in said groove when said releasable stop lock is in a second position.
Claim 16
Dependent Claim
16 words
A device as recited in claim 14, wherein said sheet is formed of a sterilizable material.
Claim 17
Dependent Claim
21 words
A device as recited in claim 15, wherein said sheet is formed of 316 stainless steel with a sand-blasted, non-skid surface.
Claim 18
Dependent Claim
16 words
A device as recited in claim 14, wherein said sheet is formed of a disposable material.
Claim 19
Dependent Claim
15 words
A device as recited in claim 17, wherein said sheet if formed of ABS plastic.
Claim 20
Dependent Claim
21 words
A device as recited in claim 1 further comprising: means for locking each of said height-adjusting arms in a fixed position.
Claim 21
Dependent Claim
29 words
A device as recited in claim 1, wherein at least one of said tension arms includes a means for looping a portion of a tendon about said tension arm.
Claim 22
Dependent Claim
33 words
A device as recited in claim 20, wherein: at least one of said tension arms includes a pair of hook-shaped extensions; and said looping means includes a pin removably mounted between said extensions.
Claim 23
Dependent Claim
34 words
A device as recited in claim 1 wherein: said tension arms and said height adjusting arms are rotatable 180 degrees about a horizontal axis to position said graft while maintaining tension on said graft.
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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) | 1997-03-28 | 1997-09-27 | 1998-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-03-28 | 2001-09-27 | 2002-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-03-28 | 2005-09-27 | 2006-03-29 | $7700.00 | Window Closed / Lapsed |