Patent US4570618A successfully refreshed from Google Patents.
US4570618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intervertebral body wire stabilization
Assignee: Henry Ford Hospital
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Filing: 1983-11-23
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Granted: 1986-02-18
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Expires: 2003-11-23
Abstract
Abstract The method and apparatus of stabilizing the spine wherein a bone graft has been provided between spaced vertebral bodies which comprises engaging preformed wire members having loops connected by wire with each loop engaging the transverse process of a vertebra, forming the wire connecting loops in an arch extending posteriorly of the lamina, and packing bone cement about the wire members and longitudinally between the lamina.
Inventors
- 👤 Kent K. Wu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:50
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/70; A61B17/7062; A61B17/707; A61B17/82; A61B17/88; A61B17/8861; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/44; A61B17/84; A61B17/842; A61F2/28; A61F2002/2835; A61F2/46; A61F2002/4631
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
64 words
The method of stabilizing the spine wherein a bone graft has been provided between spaced vertebral bodies which comprises engaging preformed wire members having loops connected by wire with each loop engaging the transverse process of a vertebra, forming the wire connecting loops in an arch extending posteriorly of the lamina, and packing bone cement about the wire members and longitudinally between the lamina.
Claim 2
Independent Claim
64 words
The method of stabilizing the spine wherein a bone graft has been provided between spaced vertebral bodies which comprises engaging preformed wire members having loops connected by wire with each loop engaging the transverse process of a vertebra, forming the wire connecting loops in an arch extending posteriorly of the lamina, and packing bone cement about the wire members and longitudinally between the lamina.
Claim 3
Dependent Claim
19 words
The method set forth in claim 1 including the step of clamping each loop tightly about the transverse process.
Claim 4
Dependent Claim
18 words
The method set forth in claim 1 wherein the portion of the wire between the loops is twisted.
Claim 5
Dependent Claim
17 words
The method set forth in claim 1 wherein said wire member comprises a single length of wire.
Claim 6
Dependent Claim
28 words
The method set forth in claim 1 including the step of forming additional arches by looping a wire member through the laminae prior to applying the bone cement.
Claim 7
Dependent Claim
82 words
The method set forth in claim 5 wherein said additional arch is formed by passing one end of a length of wire under a lamina from the top to the base of the posterior of a lamina, twisting said one end about the lamina to define a loop, passing the other end of the wire under the opposite lamina from the top to the base and twisting the free end of the other end to form a loop about the other lamina.
Claim 8
Dependent Claim
19 words
The method set forth in claim 6 including the step of clamping each loop tightly about the respective lamina.
Claim 9
Dependent Claim
41 words
A wire stabilizing device for use in stabilizing the vertebra of a spine which comprises spaced loops and an interconnecting wire member which can be bent into the form of an arch, said interconnecting wire member being made of twisted wires.
Claim 10
Dependent Claim
41 words
A wire stabilizing device for use in stabilizing the vertebra of a spine which comprises spaced loops and an interconnecting wire member which can be bent into the form of an arch, said interconnecting wire member being made of twisted wires.
Claim 11
Dependent Claim
66 words
A wire stabilizing device for use in stabilizing the vertebra of a spine which comprises spaced loops and an interconnecting wire member which can be bent into the form of an arch, said stabilizing device being made of a single length of wire bent intermediate its ends to form loops with the ends twisted about other portions of the wire to form an interconnecting twisted portion.
Claim 12
Dependent Claim
66 words
A wire stabilizing device for use in stabilizing the vertebra of a spine which comprises spaced loops and an interconnecting wire member which can be bent into the form of an arch, said stabilizing device being made of a single length of wire bent intermediate its ends to form loops with the ends twisted about other portions of the wire to form an interconnecting twisted portion.
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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) | 1989-02-17 | 1989-08-19 | 1990-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-17 | 1993-08-19 | 1994-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-17 | 1997-08-19 | 1998-02-18 | $7700.00 | Window Closed / Lapsed |