US5913859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for extracting bone marrow
Assignee: Individual
•
Filing: 1997-07-01
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Granted: 1999-06-22
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Expires: 2017-07-01
Abstract
Abstract Methods and apparatus are presented for extracting and collecting bone marrow from the jawbone of a patient before, during, or after dental procedures. The method and apparatus further provides a readily accessible, and easily harvested, source of bone marrow without the drawbacks of current extraction methods.
Inventors
- 👤 Ira L. Shapira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:27
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B10/0233; A61B10/025; A61B17/00; A61B17/16; A61B17/1635; A61B10/0283; A61B2017/00681; A61B2017/00685; A61B2017/00969; A61C; A61C1/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
109 words
A dental apparatus for extracting bone marrow from a patient, the apparatus comprising: a housing having a cavity, a first passage for passing irrigation fluid to an extraction site, and a second passage for passing bone marrow from the cavity to a collection device, the second passage being in communication with the cavity; a hollow shaft disposed in the cavity and having first and second ends, the hollow shaft being in communication with the first passage; a bur attached to the first end of the hollow shaft; a beveled gear attached to the second end of the hollow shaft; and a drive gear matingly engaged to the beveled gear.
Claim 2
Dependent Claim
109 words
A dental apparatus for extracting bone marrow from a patient, the apparatus comprising: a housing having a cavity, a first passage for passing irrigation fluid to an extraction site, and a second passage for passing bone marrow from the cavity to a collection device, the second passage being in communication with the cavity; a hollow shaft disposed in the cavity and having first and second ends, the hollow shaft being in communication with the first passage; a bur attached to the first end of the hollow shaft; a beveled gear attached to the second end of the hollow shaft; and a drive gear matingly engaged to the beveled gear.
Claim 3
Dependent Claim
30 words
The dental apparatus of claim 1, wherein: the housing has a detachable portion; at least a part of the second passage is defined in the detachable portion of the housing.
Claim 4
Dependent Claim
21 words
The dental apparatus for extracting bone marrow according to claim 1 further comprising a vacuum in communication with the second passage.
Claim 5
Dependent Claim
40 words
The dental apparatus for extracting bone marrow according to claim 1 wherein: the hollow shaft has a circumferential outer surface; and a spiral cutting blade for breaking up bone marrow is attached to the outer surface of the hollow shaft.
Claim 6
Dependent Claim
31 words
The dental apparatus for extracting bone marrow according to claim 1 wherein: the collection device comprises a tube in communication with the second passage and a container connected to the tube.
Claim 7
Dependent Claim
27 words
The dental apparatus for extracting bone marrow according to claim 5 wherein: the tube comprises a valve for controlling a flow of bone marrow into the container.
Claim 8
Dependent Claim
25 words
The dental apparatus for extracting bone marrow according to claim 1 wherein: a source of irrigation fluid is in fluid communication with the first passage.
Claim 9
Dependent Claim
36 words
The dental apparatus for extracting bone marrow according to claim 1 wherein: the cavity is defined by walls having ridges for breaking up bone marrow prior to passage of the bone marrow through the second passage.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-06-21 | 2002-12-21 | 2003-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-06-21 | 2006-12-21 | 2007-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-06-21 | 2010-12-21 | 2011-06-22 | $7700.00 | Window Closed / Lapsed |