Light shield for dental apparatus
US5288231A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 1993 |
| Grant date | Feb 22, 1994 |
| Priority date | — |
| Expiry date | Mar 8, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C19/004
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A light shield is provided for dental apparatus which shines light onto light curable material used to repair teeth. The shield is formed of a plastic material which substantially attenuates light in the blue range, and can be mounted onto the guide tube of the light gun utilizing engagement members defined between slits cut in the plastic sheet forming the body of the shield. The engagement members between the slits are displaced as the light shield is pressed onto the tip of the guide tube, with the engagement members then resiliently pressing against the periphery of the guide tube to firmly hold the shield in place. The shield can be easily removed by the dentist after the procedure with the patient is completed, and is economical so that it may be disposed of after one use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.