Patent US5320462A successfully refreshed from Google Patents.
US5320462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing dental restorations and medical prostheses
Assignee: SUNDH ANDRES
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Filing: 1990-08-17
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Granted: 1994-06-14
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Expires: 2010-08-17
Abstract
Abstract This invention relates to a method of producing restorations, prosthesis or the like within dentistry and medical service, a measuring device, a computer and a shaping machine being utilized. According to the invention the method is characterized by the combination of the following moments: a measuring probe (3) provided with at least two lighting points (5-7) and being an integral part of a measuring device provided with at least two cameras (1, 2) is conveyed along the treatment area at the same time as the movements of the measuring probe (3) are registered by means of the cameras (1, 2); data from the cameras are collected by and stored in a computer which is specially programmed for this field of use and which on basis of incoming data can determine the form of the treatment area; the data information stored in the computer is utilized for controlling a shaping machine which out of a working piece shapes a suitable restoration or prosthesis.
Inventors
- 👤 Gunnar Johansson
- 👤 Goran Sjogren
- 👤 Anders Sundh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:54
CPC Classifications
A; A61; A61C; A61C13/00; A61C13/0003; A61C13/0004; A61C9/00; A61C9/004; A61C9/0046; A61C9/0053; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/3094; A61F2/30942; A61F2002/30952; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/30112; Y10T409/303752
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
126 words
A method of producing a dental or medical restoration or prosthesis, comprising: conveying a measuring probe provided with two lighting points and being an integral part of a measuring device provided with three cameras along a treatment area while registering movements of the measuring probe using the cameras; collecting data from the cameras by and storing the collected data in a computer which is specially programmed for the field of use of preparing dental or medical restorations or prosthesis and which on the basis of incoming data can determine the form of said treatment area; and utilizing the data thereby stored in the computer for controlling a shaping machine which, out of a working piece, shapes a suitable restoration or prosthesis which fits said treatment area.
Claim 2
Independent Claim
126 words
A method of producing a dental or medical restoration or prosthesis, comprising: conveying a measuring probe provided with two lighting points and being an integral part of a measuring device provided with three cameras along a treatment area while registering movements of the measuring probe using the cameras; collecting data from the cameras by and storing the collected data in a computer which is specially programmed for the field of use of preparing dental or medical restorations or prosthesis and which on the basis of incoming data can determine the form of said treatment area; and utilizing the data thereby stored in the computer for controlling a shaping machine which, out of a working piece, shapes a suitable restoration or prosthesis which fits said treatment area.
Claim 3
Independent Claim
126 words
A method of producing a dental or medical restoration or prosthesis, comprising: conveying a measuring probe provided with three lighting points and being an integral part of a measuring device provided with two cameras along a treatment area while registering movements of the measuring probe using the cameras; collecting data from the cameras by and storing the collected data in a computer which is specially programmed for the field of use of preparing dental or medical restorations or prosthesis and which, on the basis of incoming data, can determine the form of said treatment area; and utilizing the data thereby stored in the computer for controlling a shaping machine which, out of a working piece, shapes a suitable restoration or prosthesis which fits said treatment area.
Claim 4
Independent Claim
126 words
A method of producing a dental or medical restoration or prosthesis, comprising: conveying a measuring probe provided with three lighting points and being an integral part of a measuring device provided with two cameras along a treatment area while registering movements of the measuring probe using the cameras; collecting data from the cameras by and storing the collected data in a computer which is specially programmed for the field of use of preparing dental or medical restorations or prosthesis and which, on the basis of incoming data, can determine the form of said treatment area; and utilizing the data thereby stored in the computer for controlling a shaping machine which, out of a working piece, shapes a suitable restoration or prosthesis which fits said treatment area.
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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) | 1997-06-13 | 1997-12-13 | 1998-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-06-13 | 2001-12-13 | 2002-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-06-13 | 2005-12-13 | 2006-06-14 | $7700.00 | Window Closed / Lapsed |