Patent US4485823A successfully refreshed from Google Patents.
US4485823A
Expired / Lapsed
US
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Apparatus for diagnosing environmental tissue of tooth
Assignee: Sankin Industry Co Ltd
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Filing: 1981-08-17
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Granted: 1984-12-04
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Expires: 2001-08-17
Abstract
Abstract An apparatus for diagnosing the environmental tissue of teeth, which has an electro-mechanical oscillation converter for converting the electric oscillation output from an electric oscillation output generation circuit into mechanical oscillation, a probe connected to the converter to be brought into contact with a patient's tooth for applying the mechanical oscillation from the converter to the tooth, and patient's responding means for actuation by the patient when he detects the sense threshold of the mechanical oscillation applied through the probe to the patient's tooth. Thus, a dentist can scientifically diagnose the health of the tissue of the patient's teeth as distinguished from the diseased part without visual examination nor palpation by the dentist.
Inventors
- 👤 Akiya Yamaguchi
- 👤 Marvin M. Stark
- 👤 Kenneth B. Soelberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:52
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/05; A61B5/053; A61B5/0534; A61B5/0048; A61B5/0051; A61C; A61C19/00; A61C19/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
130 words
An apparatus for diagnosing the environmental tissue of teeth comprising: means for generating an electric oscillation output having a predetermined characteristic, an electro-mechanical oscillation converter connected to said generating means for converting said electric oscillation output into mechanical oscillation, an oscillation probe connected to said converter and adapted to be brought into contact with a patient's tooth for applying mechanical oscillation to the tooth, means for indicating a response by the patient when he senses the threshold of the mechanical oscillation applied through said probe to his tooth, means for measuring the characteristic of the electric oscillation output from said generation circuit at the time of the patient's response, and an acoustic sound shielding means for shielding the ear of the patient from external noise conflicting with said mechanical oscillation.
Claim 2
Independent Claim
130 words
An apparatus for diagnosing the environmental tissue of teeth comprising: means for generating an electric oscillation output having a predetermined characteristic, an electro-mechanical oscillation converter connected to said generating means for converting said electric oscillation output into mechanical oscillation, an oscillation probe connected to said converter and adapted to be brought into contact with a patient's tooth for applying mechanical oscillation to the tooth, means for indicating a response by the patient when he senses the threshold of the mechanical oscillation applied through said probe to his tooth, means for measuring the characteristic of the electric oscillation output from said generation circuit at the time of the patient's response, and an acoustic sound shielding means for shielding the ear of the patient from external noise conflicting with said mechanical oscillation.
Claim 3
Dependent Claim
64 words
The apparatus for diagnosing the environmental tissue of teeth as claimed in claim 1, wherein said acoustic sound shielding means is a headphone to be mounted at the ear of the patient, an electric circuit for generating white noise conflicting with noise generated by said mechanical oscillation applied to the patient's tooth, and means for connecting said white noise generating circuit to said headphone.
References Cited (Backward Citations)
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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) | 1987-12-04 | 1988-06-04 | 1988-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-04 | 1992-06-04 | 1992-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-04 | 1996-06-04 | 1996-12-04 | $7700.00 | Window Closed / Lapsed |