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US4622010A
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Enossal implant for securing a tight-fitting tooth replacement
Assignee: IMPLANTO LOCK GmbH
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Filing: 1984-11-16
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Granted: 1986-11-11
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Expires: 2004-11-16
Abstract
Abstract An enossal tooth implant for a tooth replacement comprising an internally threaded metal tube for insertion into the jawbone, a rigid insert that screws into the tube containing a pin on which the tooth is mounted, and a resilient plastic cushioning sleeve between the pin and rigid insert.
Inventors
- 👤 Werner L. Koch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:50
CPC Classifications
A; A61; A61C; A61C8/00; A61C8/0086; A61C8/0018; A61C8/0048
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
81 words
An enossal implant for holding a resiliently-mounted, tight-fitting tooth replacement comprising a rigid metal tube insertable into the jaw bone a threaded bore within said tube a removable insert for said tube having a threaded rigid metal peg for screwing into said bore to lock the tube to the insert a pin disposed within said insert for mounting said tooth replacement on the outer end thereof and an intermediary resilient sleeve positioned between and bonded to said pin and said insert.
Claim 2
Dependent Claim
81 words
An enossal implant for holding a resiliently-mounted, tight-fitting tooth replacement comprising a rigid metal tube insertable into the jaw bone a threaded bore within said tube a removable insert for said tube having a threaded rigid metal peg for screwing into said bore to lock the tube to the insert a pin disposed within said insert for mounting said tooth replacement on the outer end thereof and an intermediary resilient sleeve positioned between and bonded to said pin and said insert.
Claim 3
Dependent Claim
26 words
An enossal implant in accordance with claim 1, in which said intermediary sleeve is firmly connected, by cementing or casting, with said pin and said insert.
Claim 4
Dependent Claim
42 words
An enossal implant in accordance with claim 1, in which said insert has a head, said pin terminates in a cone spaced above said head, and said intermediate sleeve has a flange positioned in the space between said head and said cone.
Claim 5
Dependent Claim
18 words
An enossal implant in accordance with claim 3, in which said bore is enlarged above the threaded portion.
Claim 6
Dependent Claim
18 words
An enossal implant in accordance with claim 1, in which said peg is constructed as an expansible screw.
Claim 7
Dependent Claim
24 words
An enossal implant in accordance with claim 5, in which said insert has a cylindrical shaft tightly fitted in the bore of said tube.
Claim 8
Dependent Claim
22 words
An enossal implant in accordance with claim 6, in which said cylindrical shaft has a significantly larger diameter than said threaded peg.
Claim 9
Dependent Claim
38 words
An enossal implant in accordance with claim 3, in which said cone has a contact surface lying opposite a similar contact surface on the external end of said head, and said flange is compressed between said contact surfaces.
Claim 10
Dependent Claim
16 words
An enossal implant in accordance with claim 8, in which both the contact surfaces are curved.
Claim 11
Dependent Claim
21 words
An enossal implant in accordance with claim 8, in which the contact surface of the cone is oriented towards said pin.
Claim 12
Dependent Claim
17 words
An enossal implant in accordance with claim 3, in which said head extends in an axial direction.
Claim 13
Dependent Claim
21 words
An enossal implant in accordance with claim 11, in which said head has a circular rounded constriction on its external surface.
References Cited (Backward Citations)
US4270905A
Cited
US4416629A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-11-10 | 1990-05-12 | 1990-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-10 | 1994-05-12 | 1994-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-10 | 1998-05-12 | 1998-11-11 | $7700.00 | Window Closed / Lapsed |