US4135506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and device for pinning a fractured vertebra
Assignee: Individual
•
Filing: 1977-03-15
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Granted: 1979-01-23
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Expires: 1997-03-15
Abstract
Abstract A bone pin for a fractured vertebra has a pair of ends, a bend between the ends, and at least one laterally extending lug at one of the ends. A nonstraight hole is drilled in a vertebra or between two vertebrae and the pin is inserted by means of a special forceps into this hole. Thereafter the lug or lugs of the pin is screwed to the vertebra. Such a pin can be applied transabdominably or transthoracically, and can even be used to pin the odontoid process of the second cervical vertebra.
Inventors
- 👤 Max B. Ulrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:38
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/88; A61B17/8872; A61B17/68
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
77 words
A bone pin having a pair of coplanar ends substantially at right angles to one another, a bend between said ends said ends and said bend lying substantially in a common plane, and at least one laterally extending lug at one of said ends securable to a vertebra in which said pin is set, said lug lying, generally perpendicular to said plane and the other of said ends being pointed for setting the pin in said vertebra.
Claim 2
Dependent Claim
77 words
A bone pin having a pair of coplanar ends substantially at right angles to one another, a bend between said ends said ends and said bend lying substantially in a common plane, and at least one laterally extending lug at one of said ends securable to a vertebra in which said pin is set, said lug lying, generally perpendicular to said plane and the other of said ends being pointed for setting the pin in said vertebra.
Claim 3
Dependent Claim
55 words
A bone pin comprising: an elongated member having a front end insertable in a vertebra, a rear end adapted to protrude therefrom and substantially perpendicular to said front end and coplanar therewith, and a bend connecting said ends; and a pair of lugs extending laterally oppositely from said rear end and securabe to said vertebra.
Claim 4
Dependent Claim
55 words
A bone pin comprising: an elongated member having a front end insertable in a vertebra, a rear end adapted to protrude therefrom and substantially perpendicular to said front end and coplanar therewith, and a bend connecting said ends; and a pair of lugs extending laterally oppositely from said rear end and securabe to said vertebra.
Claim 5
Dependent Claim
18 words
The bone defined in claim 2 wherein said lugs are curved and shaped to fit around a vertebra.
Claim 6
Dependent Claim
23 words
The bone pin defined in claim 2 wherein said portion at said one end is curved and the other portion is generally straight.
Claim 7
Dependent Claim
15 words
The bone pin defined in claim 2 wherein the other of said ends is pointed.
Claim 8
Dependent Claim
38 words
The bone pin defined in claim 2 wherein said pin has a concave side and a convex side, said portions being formed with a groove extending the full length of said convex side and opening at said lugs.
Claim 9
Dependent Claim
22 words
The bone pin defined in claim 6 wherein said pin is formed on said concave side at said lugs with a recess.
Claim 10
Dependent Claim
44 words
In combination with the bone pin of claim 7, a forceps having a pair of approachable jaws one of which is formed with a ridge snugly fittable with said groove and the other of which is formed as a claw engageable in said recess.
Claim 11
Dependent Claim
19 words
The bone pin defined in claim 2 wherein said lugs are formed with throughgoing holes adapted to receive screws.
Claim 12
Independent Claim
50 words
A method of pinning a fractured vertebra comprising the steps of: boring in the fractured vertebra a nonstraight hole extending across the fracture therein and opening at a surface thereof; inserting in said hole a nonstraight bone pin having a pair of lugs; and screwing said lugs to said surface.
Claim 13
Independent Claim
50 words
A method of pinning a fractured vertebra comprising the steps of: boring in the fractured vertebra a nonstraight hole extending across the fracture therein and opening at a surface thereof; inserting in said hole a nonstraight bone pin having a pair of lugs; and screwing said lugs to said surface.
Claim 14
Dependent Claim
16 words
The method defined in claim 10 wherein said surface is the side surface of said vertebra.
Claim 15
Dependent Claim
16 words
The method defined in claim 10 wherein said surface is the front surface of said vertebra.
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) | 1982-01-22 | 1982-07-24 | 1983-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-22 | 1986-07-24 | 1987-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-22 | 1990-07-24 | 1991-01-23 | $7700.00 | Window Closed / Lapsed |