Patent US3670724A successfully refreshed from Google Patents.
US3670724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prosthetic or fracture device and method
Assignee: Individual
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Filing: 1970-03-12
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Granted: 1972-06-20
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Expires: 1990-03-12
Abstract
Abstract A hip replacement prosthesis comprises an artificial ball mounted on or integral with an intermediate portion which abuts the end of the bone in question. A shank or stem having a plurality of screw holes is attached to the intermediate portion and is intended for intramedullary insertion. The intermediate portion has at least one locating hole and the stem has a plurality of spaced holes formed therein. The stem is inserted into the medulla leaving the locating holes in the intermediate portion exposed. A rectangular post is fitted into the locating holes and then a template having a rectangular aperture is fitted over the rectangular post. The template has a plurality of screw holes in it positioned, when in place, to be congruent with the holes in the stem. When the template is in place one or more holes are drilled transversely through the template, the near bone cortex, the corresponding prosthetic stem hole and the far cortex portion. The template is then removed and screws are then screwed through the aligned holes in the bone and the stem. In ordinary bone fixation a similar technique is used except that at least part of the external plate or template is left on and the screws are screwed through it, the bone and the intramedullary nail.
Inventors
- 👤 David N Bosacco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:57
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/16; A61B17/17; A61B17/1739; A61B17/1742; A61B17/1753; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/32; A61F2/36; A61B17/72; A61B17/7283; A61F2/30767; A61F2/30771; A61F2002/30772; A61F2002/30784; A61F2002/30785; A61F2/3609; A61F2002/3625; A61F2002/3631; A61F2/3662; A61F2002/3678; A61F2002/368
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
132 words
Medical therapeutic apparatus comprising: a. a rigid member adapted to be wholly inserted into the medulla of a bone, said member having a first set of spaced apertures formed therein, said member also having position reference means including at least one aperture, b. a rigid plate having a second set of apertures spaced from one another identically to the spacing of the apertures in said first set, and c. means adapted to engage said (b) means and said position reference means thereby to bring the first and second sets of apertures in line with one another, said (c) means including: i. a pin for insertion into said aperture in said position reference means and ii. a holder separate removable engaging the pin and a portion of said plate in a predetermined position.
Claim 2
Dependent Claim
132 words
Medical therapeutic apparatus comprising: a. a rigid member adapted to be wholly inserted into the medulla of a bone, said member having a first set of spaced apertures formed therein, said member also having position reference means including at least one aperture, b. a rigid plate having a second set of apertures spaced from one another identically to the spacing of the apertures in said first set, and c. means adapted to engage said (b) means and said position reference means thereby to bring the first and second sets of apertures in line with one another, said (c) means including: i. a pin for insertion into said aperture in said position reference means and ii. a holder separate removable engaging the pin and a portion of said plate in a predetermined position.
Claim 3
Dependent Claim
25 words
The combination according to claim 1 wherein a plurality of fasteners are passed through said first and second sets of apertures and into said bone.
Claim 4
Dependent Claim
22 words
The apparatus according to claim 1 wherein said holder is generally U-shaped and a terminal portion of said rigid plate fits therein.
Claim 5
Independent Claim
195 words
A method of treating a human bone comprising: a. introducing into the medulla of said bone a rigid member having a first set of spaced apertures, b. applying to the exterior of said bone a plate having a second set of apertures spaced from one another identically to the spacing of the apertures in said first set, said plate being applied so that both sets of apertures are aligned with one another, including the steps of drilling a hole in said bone to locate one of the apertures of said first set, disposing in said last-mentioned hole a positional reference means which fits in said aperture so that a part extends outside of the bone, said reference means including a separate removable member having a portion which interfits with a terminal portion of said plate, c. drilling a plurality of holes in said bone inwardly through said second set of apertures in said plate, said plurality of holes being aligned with said first set of apertures in said rigid member, and d. inserting into said plurality of holes a plurality of fasteners which pass through said first set of apertures thereby immobilizing said rigid member.
Claim 6
Independent Claim
195 words
A method of treating a human bone comprising: a. introducing into the medulla of said bone a rigid member having a first set of spaced apertures, b. applying to the exterior of said bone a plate having a second set of apertures spaced from one another identically to the spacing of the apertures in said first set, said plate being applied so that both sets of apertures are aligned with one another, including the steps of drilling a hole in said bone to locate one of the apertures of said first set, disposing in said last-mentioned hole a positional reference means which fits in said aperture so that a part extends outside of the bone, said reference means including a separate removable member having a portion which interfits with a terminal portion of said plate, c. drilling a plurality of holes in said bone inwardly through said second set of apertures in said plate, said plurality of holes being aligned with said first set of apertures in said rigid member, and d. inserting into said plurality of holes a plurality of fasteners which pass through said first set of apertures thereby immobilizing said rigid member.
Claim 7
Dependent Claim
16 words
The method according to claim 4 wherein said plate is removed before said fasteners are inserted.
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) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |