Patent US4719907A successfully refreshed from Google Patents.
US4719907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orthopedic pin placement guide
Assignee: Howmedica Osteonics Corp
•
Filing: 1987-03-18
•
Granted: 1988-01-19
•
Expires: 2007-03-18
Abstract
Abstract A guide device for the placement of a bone screws or pin in the orthopedic treatment of bone fractures is disclosed. The guide device is constructed of a body having one or more tunnels for guiding therethrough an orthopedic pin for placement in the orthopedic treatment of a bone fracture. The body includes at least one frangible portion for separating the body from about the pin such that the body is removable while the pin remains in secured place within the bone.
Inventors
- 👤 Victor F. Banko
- 👤 Robert E. Zickel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:06
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/16; A61B17/17; A61B17/1721; A61B90/00; A61B90/03; A61B2090/037
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
67 words
Guide device for the placement of a pin in the orthopedic treatment of bone fractures, said device comprising a body having a first opening for guiding therethrough a pin for placement in the orthopedic treatment of a bone fracture, said body having a frangible portion for separating said body from about said pin, whereby said body is removable while said pin remains in place within said bone.
Claim 2
Dependent Claim
67 words
Guide device for the placement of a pin in the orthopedic treatment of bone fractures, said device comprising a body having a first opening for guiding therethrough a pin for placement in the orthopedic treatment of a bone fracture, said body having a frangible portion for separating said body from about said pin, whereby said body is removable while said pin remains in place within said bone.
Claim 3
Dependent Claim
27 words
The device of claim 1 wherein said first opening is a pin placement tunnel for guiding said pin into place during orthopedic treatment of a bone fracture.
Claim 4
Dependent Claim
14 words
The guide device of claim 1 wherein said first opening intersects said frangible portion.
Claim 5
Dependent Claim
23 words
The guide device of claim 3 further including a trough-like depression formed within said body and arranged in communication with said first opening.
Claim 6
Dependent Claim
34 words
The guide device of claim 3 further including a second opening, said second opening arranged parallel to said first opening for guiding therethrough a pin for placement in the orthopedic treatment of a bone.
Claim 7
Dependent Claim
18 words
The guide device of claim 5 wherein said frangible portion intersects said first opening and said second opening.
Claim 8
Dependent Claim
22 words
The guide device of claim 3 wherein said first opening is angularly arranged with respect to a longitudinal axis of said body.
Claim 9
Dependent Claim
23 words
The guide device of claim 7 wherein said frangible portion is at an angle corresponding to the angular arrangement of said first opening.
Claim 10
Dependent Claim
39 words
The guide device of claim 7 wherein the angular arrangement of said first opening is approximately between 125°-150° when measured from the underside of a human greater trochanter in the treatment of bone fractures of a human femoral neck.
Claim 11
Dependent Claim
13 words
The guide device of claim 9 wherein the angular arrangement is between 130°-140°.
Claim 12
Dependent Claim
22 words
The guide device of claim 9 wherein said body has a rounded edge conforming to the underside of the greater human trochanter.
Claim 13
Dependent Claim
26 words
The guide device of claim 3 wherein said body is sufficiently transparent to permit visualization of said pin as said pin passes through said first opening.
Claim 14
Dependent Claim
13 words
The guide device of claim 3 wherein said body is made of acrylic.
Claim 15
Dependent Claim
28 words
The guide device of claim 3 wherein said frangible portion is a hollowed out region having securing means bridging said hollowed out region for holding said body together.
Claim 16
Dependent Claim
18 words
The device of claim 3 wherein said body includes a flat region having a trough-like depression extending therefrom.
Claim 17
Dependent Claim
13 words
The device of claim 15 wherein said trough-like depression is a circular arc.
Claim 18
Dependent Claim
9 words
The device of claim 3 further comprising radioopaque markers.
Claim 19
Dependent Claim
19 words
The device of claim 3 wherein said first opening is arranged perpendicular to a longitudinal axis of said body.
Claim 20
Dependent Claim
29 words
The guide device of claim 18 wherein said body further includes a beveled edge, said beveled edge conforming to the curvature of the underside of a human greater trochanter.
Claim 21
Dependent Claim
86 words
Guide device for the placement of a pin in the orthopedic treatment of bone fractures said device comprising: a body having a plurality of openings for guiding therethrough pins for placement in the orthopedic treatment of a bone fracture; at least one frangible portion within said body for separating said body from about said pin, said frangible portion intersecting said plurality of openings; and a trough-like depression within said body, said frangible portion and said plurality of openings located at least partially within said trough-like depression.
Claim 22
Dependent Claim
86 words
Guide device for the placement of a pin in the orthopedic treatment of bone fractures said device comprising: a body having a plurality of openings for guiding therethrough pins for placement in the orthopedic treatment of a bone fracture; at least one frangible portion within said body for separating said body from about said pin, said frangible portion intersecting said plurality of openings; and a trough-like depression within said body, said frangible portion and said plurality of openings located at least partially within said trough-like depression.
References Cited (Backward Citations)
US3171408A
Cited
US3765034A
Cited
US3842824A
Cited
US4360012A
Cited
US4488543A
Cited
US4522201A
Cited
US4570624A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-01-18 | 1991-07-20 | 1992-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-18 | 1995-07-20 | 1996-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-18 | 1999-07-20 | 2000-01-19 | $7700.00 | Window Closed / Lapsed |