US4858603A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bone pin
Assignee: Johnson and Johnson Professional Inc
•
Filing: 1988-06-06
•
Granted: 1989-08-22
•
Expires: 2008-06-06
Abstract
Abstract A bone pin made with a tapered polymeric portion and a cutting device secured to the smaller end of the polymeric portion. The pin can be inserted through a bone or bone fragment and the cutting device removed.
Inventors
- 👤 Alastair J. T. Clemow
- 👤 Scott H. Jaeger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:49
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/84; A61B17/842; A61B17/86; A61B17/8625; A61B17/8635; A61F; A61F5/00; A61F5/01; A61F5/04; A61B17/846; A61B17/848; Y; Y10; Y10S; Y10S606/00; Y10S606/907; Y10S606/908; Y10S606/91
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
79 words
A bone pin comprising a tapered cylindrical portion made of a polymeric material and a separate drill portion affixed to one end of the cylindrical polymeric portion, the cylindrical polymeric portion of the pin having a taper such that the diameter is reduced by from 0.005 to 0.05 millimeters per millimeter of length of the polymeric portion of the pin, the diameter of the drill portion being between the smallest diameter and the largest diameter of the polymeric portion.
Claim 2
Dependent Claim
79 words
A bone pin comprising a tapered cylindrical portion made of a polymeric material and a separate drill portion affixed to one end of the cylindrical polymeric portion, the cylindrical polymeric portion of the pin having a taper such that the diameter is reduced by from 0.005 to 0.05 millimeters per millimeter of length of the polymeric portion of the pin, the diameter of the drill portion being between the smallest diameter and the largest diameter of the polymeric portion.
Claim 3
Dependent Claim
26 words
The bone pin of claim 1 in which the polymeric portion of the pin is made from a polymer which is absorbable in an animal body.
Claim 4
Dependent Claim
22 words
The pin of claim 2 in which the polymeric portion of the pin is swaged to the drill portion of the device.
Claim 5
Dependent Claim
13 words
The bone pin of claim 2 in which the absorbable polymer is poly-dioxanone.
Claim 6
Dependent Claim
15 words
The pin of claim 1 in which the point of the drill portion is metal.
References Cited (Backward Citations)
US2121193A
Cited
US2772676A
Cited
US3915162A
Cited
US4052988A
Cited
US4463753A
Cited
US4414966A
Cited
US4628923A
Cited
US4756307A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-08-21 | 1993-02-20 | 1993-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-21 | 1997-02-20 | 1997-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-21 | 2001-02-20 | 2001-08-22 | $7700.00 | Window Closed / Lapsed |