Patent US3680553A successfully refreshed from Google Patents.
US3680553A
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US
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Fixing apparatus for osteosynthesis of fractures of long tubular bones
Assignee: TALLINSKAYA BOLNITSA TYNISMYAE
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Filing: 1970-12-07
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Granted: 1972-08-01
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Expires: 1990-12-07
Abstract
Abstract A fixing apparatus for the osteosynthesis of fractures of long tubular bones in which two pairs of interconnected curved rods have the free ends of each pair being directed to the opposite sides. Each pair of the rods is intended for introduction into one of the bone fragments so that the free ends of the rods and the middle portion of one of the rods must rest on the compact layer within the wall of the bone tube at the opposite sides. The pairs of the rods are interconnected through a coupling allowing the distance between the pairs of the rods and their position to be forcibly changed and fixed.
Inventors
- 👤 Arnold Ivanovich Seppo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:24
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/72; A61B17/7233; A61B17/7258
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
136 words
A fixing apparatus for osteosynthesis of fractures of long tubular bones comprising in combination: two pairs of interconnected bracing curved rods, the free ends in each pair being directed in opposite directions for introduction of each said pair of rods into one of the bone tube fragments for resting on the inner compact layer of the bone tube at one side with the middle portion of one of said rods for resting on the compact layer of the wall of the bone tube at the opposite side, a coupling connecting both said pairs of the rods and adapted for a forced change and fixation of the distance between said pairs of the rods and their position, hinged joints connecting said coupling with said rods, and adjustable stops controlling the angle of rotation of said hinged joints.
Claim 2
Dependent Claim
136 words
A fixing apparatus for osteosynthesis of fractures of long tubular bones comprising in combination: two pairs of interconnected bracing curved rods, the free ends in each pair being directed in opposite directions for introduction of each said pair of rods into one of the bone tube fragments for resting on the inner compact layer of the bone tube at one side with the middle portion of one of said rods for resting on the compact layer of the wall of the bone tube at the opposite side, a coupling connecting both said pairs of the rods and adapted for a forced change and fixation of the distance between said pairs of the rods and their position, hinged joints connecting said coupling with said rods, and adjustable stops controlling the angle of rotation of said hinged joints.
Claim 3
Dependent Claim
147 words
The fixing apparatus as claimed in claim 1, in which the coupling comprises a bushing having oppositely threaded portions at the ends thereof in its bore two stretchers threaded into the oppositely threaded portions of said bushing, the ends of said stretchers disposed within said bushing being shaped to provide semi-cylindrical portions, with the diametral surfaces of the semi-cylindrical portions engaging each other, the middle portion of the bushing having a smooth wall cylindrical surface which coacts with said semi-cylindrical portions, the diameter of said cylindrical surface being selected so as to press the diametral surfaces against each other in a transverse diRection normal to the plane of the diametral surfaces so that upon rotation of the bushing, there is insured a longitudinal displacement of said stretchers without any play relative to each other and also provide for rigid fixation of said stretchers in a predetermined position.
Claim 4
Dependent Claim
46 words
The fixing apparatus as claimed in claim 1, in which said hinged joints are defined by a projection in the form of a truncated cone at the end of said rods and by a complementary conical hole in said coupling, and being braced by a screw.
Claim 5
Dependent Claim
26 words
The fixing apparatus as claimed in claim 3, in which the end of said screw is in the form of a drill transforming into a tap.
Claim 6
Dependent Claim
45 words
The fixing apparatus as claimed in claim 1, characterized in that said adjustable stops for controlling the angle of rotation comprises a toothed sector at the end of said coupling engaging the end of one of said rods of a respective pair of curved rods.
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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |