US5169312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental apparatus intended for driving an instrument for endodontic surgery
Assignee: Bien Air Dental SA
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Filing: 1992-04-08
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Granted: 1992-12-08
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Expires: 2012-04-08
Abstract
Abstract The apparatus of the contra-angle type comprises an instrument holder sleeve driven in a combined movement of alternate rotation and translation by an eccentric stud fixed to the end of a flexible shaft consisting of a metal cable. It comprises a device for controlling the flexibility of the end of the cable, this device consisting of a ring mounted rotatably in a support which can slide in the body of the apparatus.
Inventors
- 👤 Pierre Berlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:40
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/02; A61C1/07; A61C1/08; A61C1/18; A61C5/00; A61C5/40
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
101 words
A dental apparatus intended for driving an instrument for endodontic surgery, comprising a body (1, 2, 3) equipped with a head (4) in which is freely mounted a sleeve (5) intended to receive the instrument (6) and which is driven in a combined movement of alternate rotation and translation by an eccentric stud (7) fixed to the end of a flexible shaft driven in rotation by a drive means, wherein the flexible shaft is a metal cable (8) and wherein the apparatus comprises a means (9, 17) for controlling the flexibility of the end of the cable bearing the eccentric stud.
Claim 2
Dependent Claim
101 words
A dental apparatus intended for driving an instrument for endodontic surgery, comprising a body (1, 2, 3) equipped with a head (4) in which is freely mounted a sleeve (5) intended to receive the instrument (6) and which is driven in a combined movement of alternate rotation and translation by an eccentric stud (7) fixed to the end of a flexible shaft driven in rotation by a drive means, wherein the flexible shaft is a metal cable (8) and wherein the apparatus comprises a means (9, 17) for controlling the flexibility of the end of the cable bearing the eccentric stud.
Claim 3
Dependent Claim
49 words
The dental apparatus as claimed in claim 1, wherein the means for controlling the flexibility of the end of the cable consists of a ring (9) which is mounted rotatably in the body and through which the cable passes, said ring being displaceable in the body along the cable.
Claim 4
Dependent Claim
27 words
The dental apparatus as claimed in claim 2, wherein said ring (9) is mounted rotatably in a support (17) mounted slidably in the body of the apparatus.
Claim 5
Dependent Claim
20 words
The dental apparatus as claimed in claim 3, wherein said ring (9) consists of the inner raceway of a ballbearing.
References Cited (Backward Citations)
DE650678C
Cited
US987732A
Cited
US2451192A
Cited
US3578745A
Cited
US4185474A
Cited
US4341519A
Cited
US4629426A
Cited
US4773855A
Cited
US4911639A
Cited
US4781588A
Cited
FR2645430A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-12-08 | 1996-06-08 | 1996-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-12-08 | 2000-06-08 | 2000-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-12-08 | 2004-06-08 | 2004-12-08 | $7700.00 | Window Closed / Lapsed |