Patent US3596656A successfully refreshed from Google Patents.
US3596656A
Expired / Lapsed
US
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Fracture fixation device
Assignee: Individual
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Filing: 1969-01-21
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Granted: 1971-08-03
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Expires: 1989-01-21
Abstract
Abstract A device for use in the fixation of bone fractures including a metal plate having front and back faces and having at least one bore therethrough with a countersunk portion in the front face of said plate. The backface of said plate is adapted for positioning against the bone. A nonmetallic frustoconical washer is seated in the countersunk portion of the plate bore. A metal pin is inserted through the washer and the plate bore. Said pin has a shank end part which is anchored into the bone and an enlarged head which engages the washer and which serves to hold the plate firmly against the bone.
Inventors
- 👤 Bernd B Kaute
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:17
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/80; A61B17/8033; A61B17/8047; A61B17/74; A61B17/742; A61B17/746; A61B17/84; A61B17/86; A61B17/8695; Y; Y10; Y10S; Y10S411/00; Y10S411/904; Y10S411/908; Y10S411/955; Y10S411/956; Y10S411/96
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
A device for use in the fixation of the fracture of the bone comprising a metal plate having front and back faces and having a bore therethrough, said bore defined by a straight wall portion and a countersunk portion located at said plate front face, said plate backface adapted to be positioned against said bone, a nonmetallic washer having a frustoconical portion and a preformed substantially coaxial tubular neck portion, the frustoconical portion of said washer seating within the countersunk portion of said bore, the neck portion of said washer extending into the straight wall portion of said bore and terminating inwardly spaced from the back face of said plate, a metal pin having a shank and an enlarged head, said washer encircling said pin, said pin shank extending through said plate bore with clearance and adapted to be anchored into said bone, said pin head engaging the frustoconical portion of said washer and being separated from contact with said plate.
Claim 2
Independent Claim
161 words
A device for use in the fixation of the fracture of the bone comprising a metal plate having front and back faces and having a bore therethrough, said bore defined by a straight wall portion and a countersunk portion located at said plate front face, said plate backface adapted to be positioned against said bone, a nonmetallic washer having a frustoconical portion and a preformed substantially coaxial tubular neck portion, the frustoconical portion of said washer seating within the countersunk portion of said bore, the neck portion of said washer extending into the straight wall portion of said bore and terminating inwardly spaced from the back face of said plate, a metal pin having a shank and an enlarged head, said washer encircling said pin, said pin shank extending through said plate bore with clearance and adapted to be anchored into said bone, said pin head engaging the frustoconical portion of said washer and being separated from contact with said plate.
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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |