US5700263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bone distraction apparatus
Assignee: Osteomed LLC
•
Filing: 1996-06-17
•
Granted: 1997-12-23
•
Expires: 2016-06-17
Abstract
Abstract A distraction device for osteosynthesis includes a first member which is telescopically housed within a second member. The first and second members are attached to first and second bone segments, respectively. The device includes a ratchet wheel having teeth which engage teeth of the first member. Rotation of the ratchet wheel cause the first member to telescopically extend from its second member housing in an arcuate path.
Inventors
- 👤 Stephen A. Schendel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:42
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/60; A61B17/66; A61B17/663
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
59 words
A bone distraction device comprising: a first member for attachment to a first bone segment; a second member, telescopically interrelated with said first member, for attachment to a second bone segment; and a mechanism for moving said first member relative to said second member, wherein movement of said first member relative to said second member defines an arcuate path.
Claim 2
Dependent Claim
59 words
A bone distraction device comprising: a first member for attachment to a first bone segment; a second member, telescopically interrelated with said first member, for attachment to a second bone segment; and a mechanism for moving said first member relative to said second member, wherein movement of said first member relative to said second member defines an arcuate path.
Claim 3
Dependent Claim
17 words
The bone distraction device of claim 1, wherein said mechanism for moving further comprises a ratchet wheel.
Claim 4
Dependent Claim
47 words
The bone distraction device of claim 2, wherein said ratchet wheel has teeth and said first member has teeth, further wherein said ratchet wheel teeth engage said first member teeth such that rotation of said ratchet wheel causes movement of said first member in said arcuate path.
Claim 5
Dependent Claim
33 words
The bone distraction device of claim 3, wherein said mechanism for moving further comprises a pawl in association with said ratchet wheel which prevents the rotation of said ratchet wheel in one direction.
Claim 6
Dependent Claim
19 words
The bone distraction device of claim 1, wherein at least one of said first or second members is non-linear.
Claim 7
Dependent Claim
21 words
The bone distraction device of claim 5, wherein at least one of said first or second members has a logarithmic curvature.
Claim 8
Dependent Claim
26 words
The bone distraction device of claim 1, wherein said mechanism for moving moves said first bone segment away from said second bone segment to promote osteogenesis.
Claim 9
Dependent Claim
112 words
A bone distraction device comprising: a first member for attachment to a first bone segment; a second member, telescopically interrelated with said first member, for attachment to a second bone segment; and a mechanism for moving said first member relative to said second member, wherein movement of said first member relative to said second member defines an arcuate path; wherein said mechanism for moving includes a ratchet wheel for relatively displacing said first and second members with ratcheted movement; and wherein said mechanism for moving further includes at least one guide roller, said at least one guide roller adjustably held in contact with said first member by means of a tension mechanism.
Claim 10
Dependent Claim
112 words
A bone distraction device comprising: a first member for attachment to a first bone segment; a second member, telescopically interrelated with said first member, for attachment to a second bone segment; and a mechanism for moving said first member relative to said second member, wherein movement of said first member relative to said second member defines an arcuate path; wherein said mechanism for moving includes a ratchet wheel for relatively displacing said first and second members with ratcheted movement; and wherein said mechanism for moving further includes at least one guide roller, said at least one guide roller adjustably held in contact with said first member by means of a tension mechanism.
Claim 11
Dependent Claim
16 words
The bone distraction device of claim 8, wherein said tension mechanism comprises at least one spring.
References Cited (Backward Citations)
US2333033A
Cited
US3604414A
Cited
US3680553A
Cited
US3900025A
Cited
US4096857A
Cited
US4157715A
Cited
US4475546A
Cited
US4615338A
Cited
US5129903A
Cited
US5466261A
Cited
US5364396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-12-22 | 2001-06-23 | 2001-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-12-22 | 2005-06-23 | 2005-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-12-22 | 2009-06-23 | 2009-12-23 | $7700.00 | Window Closed / Lapsed |