US5059202A
Expired / Lapsed
US
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Tendon approximator
Assignee: Montefiore Medical Center
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Filing: 1990-06-21
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Granted: 1991-10-22
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Expires: 2010-06-21
Abstract
Abstract A tendon approximator employs two connected, normally closed clamps, which are each formed from two extruded elements. The two extruded elements are connected together in their mid-region by means of non-circular cam on a base element and a corresponding non-circular cam surface on a clamping element. In the normally closed position of the individual clamps, the cam and cam surface urge the device into a jaw-closed position with the handles being spaced apart. In a preferred embodiment two of the clamps are connected by means of rods extending through corresponding handle portions of the two clamps.
Inventors
- 👤 Marc D. Liang
- 👤 Krishna Narayanan
- 👤 Eugene D. Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 15:58
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/122; A61B17/1227; A61B17/02; A61B17/11
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
152 words
A tendon approximator including two normally closed clamps, each clamp comprising two connected elements including: a base element having a base jaw member, a base handle member and a central, non-circular arcuate cam member; a clamping element having a clamping jaw member, a clamping handle member and a non-circular arcuate cam-engaging member; said base element being secured to said clamping element by engagement of at least a portion of said cam-engaging member with said cam member; said base jaw member and said clamping jaw member having confronting surfaces which are in proximity when said cam-engaging member conforms to the surface of said cam member; each said clamp having two transverse bores; a pair of rods fitting in corresponding ones of said bores to support the said two clamps in generally parallel relation; at least one of said clamps being slideable along the said rods with respect to the other of said clamps.
Claim 2
Dependent Claim
152 words
A tendon approximator including two normally closed clamps, each clamp comprising two connected elements including: a base element having a base jaw member, a base handle member and a central, non-circular arcuate cam member; a clamping element having a clamping jaw member, a clamping handle member and a non-circular arcuate cam-engaging member; said base element being secured to said clamping element by engagement of at least a portion of said cam-engaging member with said cam member; said base jaw member and said clamping jaw member having confronting surfaces which are in proximity when said cam-engaging member conforms to the surface of said cam member; each said clamp having two transverse bores; a pair of rods fitting in corresponding ones of said bores to support the said two clamps in generally parallel relation; at least one of said clamps being slideable along the said rods with respect to the other of said clamps.
Claim 3
Dependent Claim
24 words
A tendon approximator as defined in claim 1 wherein the said jaw members of one clamp have corresponding transverse channels to receive a tendon.
Claim 4
Dependent Claim
31 words
The tendon approximator of claim 2 wherein a sharp spike is positioned in one of the said channels to penetrate and retain a tendon within the said one of said channels.
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) | 1994-10-21 | 1995-04-22 | 1995-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-10-21 | 1999-04-22 | 1999-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-10-21 | 2003-04-22 | 2003-10-22 | $7700.00 | Window Closed / Lapsed |