US4936851A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analytic bone implant
Assignee: Omron Healthcare Co Ltd
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Filing: 1988-08-26
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Granted: 1990-06-26
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Expires: 2008-08-26
Abstract
Abstract A analytic bone implant includes a cylindrical housing with an inner chamber designed for collecting sample of bone tissues. The outer surface of the housing is provided with a plurality of threads for securing the implant into bone tissue. The housing is further provided with a plurality of openings to allow new bone tissue to grow into a collecting basket. The openings in the housing are alignable with complementary openings in the basket. The openings on the basket are provided with sharp edges which serve as cutting blades to facilitate the removal of the bone sample. The implant includes provision for repeated access to the medullary compartment for obtaining sample of cancellous tissue for histologic and morphometric analysis.
Inventors
- 👤 William C. Fox
- 👤 William T. Balogh
- 👤 Phontie J. Pantermuehl
- 👤 Thomas B. Aufdemorte
- 👤 George R. Holt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:04
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/0247; A61B; A61B10/00; A61B10/02; A61B10/0233; A61B10/025; A61M2039/025; A61M2039/0261; A61M2039/0288
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
154 words
An analytic bone implant for repeated acquisition of substantially undeformed osseous tissue from a site in a bone, comprising: a housing having a generally cylindrical outer surface, an inner chamber, and a predetermined length terminating in two ends; said inner chamber having a generally smooth wall extending from one of said two end to the other; said outer surface having threads, for engaging cortical or medullary tissue in said bone, said threads beginning a predetermined distance from one of said two ends and extending to the other of said two ends, and having a predetermined number of openings to permit bone growth into said inner chamber; cutting means substantially contiguous with said bone growth openings for separating new bone growth said cutting means cooperating with said closure cap to cut said new bone growth upon removal of said cap; and basket means to collect said new bone growth after separation by said cutting means.
Claim 2
Dependent Claim
154 words
An analytic bone implant for repeated acquisition of substantially undeformed osseous tissue from a site in a bone, comprising: a housing having a generally cylindrical outer surface, an inner chamber, and a predetermined length terminating in two ends; said inner chamber having a generally smooth wall extending from one of said two end to the other; said outer surface having threads, for engaging cortical or medullary tissue in said bone, said threads beginning a predetermined distance from one of said two ends and extending to the other of said two ends, and having a predetermined number of openings to permit bone growth into said inner chamber; cutting means substantially contiguous with said bone growth openings for separating new bone growth said cutting means cooperating with said closure cap to cut said new bone growth upon removal of said cap; and basket means to collect said new bone growth after separation by said cutting means.
Claim 3
Dependent Claim
36 words
An analytic bone implant as described in claim 1, wherein said means to collect said new bone growth includes disc means supported from said closure cap means beneath said openings to collect said new bone growth.
Claim 4
Dependent Claim
36 words
An analytic bone implant as described in claim 2, including insert means attached to said closure cap means, extending therefrom, and attached to said disc means to support said disc means from said closure cap means.
Claim 5
Dependent Claim
33 words
An analytic bone implant as described in claim 3 wherein said outer surface of said housing includes at least two openings positioned diametrically opposite each other to permit bone-growth into the inner chamber.
Claim 6
Dependent Claim
30 words
The analytic bone implant as described in claim 4, said access ports comprising arched slots in said housing, said slots being alignable with complementary arch slots in said basket assembly.
Claim 7
Dependent Claim
27 words
An analytic bone implant as described in claim 5, said arch slots on said basket assembly being provided with sharp edges for cutting said new bone growth.
Claim 8
Dependent Claim
22 words
An analytic bone implant as described in claim 6, said housing and said basket each comprising a total of four arch slots.
Claim 9
Dependent Claim
182 words
An analytic bone implant for repeated acquisition of substantially undeformed osseous tissue from a site in a bone, comprising: a housing having a generally cylindrical outer surface, an inner chamber, and a predetermined length terminating in two ends, said housing having a tapered portion of one end thereof; said inner chamber having a generally smooth wall extending from one of said two ends to the other; said outer surface having threads on said tapered portion of said housing, for engaging cortical or medullary tissue in said bone, said threads beginning a predetermined distance from one of said two ends and extending to the other of said two ends, and having a predetermined number of openings to permit bone growth into said inner chamber; closure cap means threaded onto said housing at said one end; cutting means substantially contiguous with said bone growth openings for separating new bone growth said cutting means cooperating with said closure cap to cut said new bone growth upon removal of said cap; and basket means to collect said new bone growth after separation by said cutting means.
Claim 10
Dependent Claim
182 words
An analytic bone implant for repeated acquisition of substantially undeformed osseous tissue from a site in a bone, comprising: a housing having a generally cylindrical outer surface, an inner chamber, and a predetermined length terminating in two ends, said housing having a tapered portion of one end thereof; said inner chamber having a generally smooth wall extending from one of said two ends to the other; said outer surface having threads on said tapered portion of said housing, for engaging cortical or medullary tissue in said bone, said threads beginning a predetermined distance from one of said two ends and extending to the other of said two ends, and having a predetermined number of openings to permit bone growth into said inner chamber; closure cap means threaded onto said housing at said one end; cutting means substantially contiguous with said bone growth openings for separating new bone growth said cutting means cooperating with said closure cap to cut said new bone growth upon removal of said cap; and basket means to collect said new bone growth after separation by said cutting means.
References Cited (Backward Citations)
EP0269175A2
Cited
EP0269176A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-06-25 | 1993-12-25 | 1994-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-25 | 1997-12-25 | 1998-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-25 | 2001-12-25 | 2002-06-26 | $7700.00 | Window Closed / Lapsed |