Title:
PROTECTIVE DEVICE FOR DENTAL USE
Document Type and Number:
WIPO Patent Application WO/2000/072774
Kind Code:
A2
Abstract:
Protective device for dental use comprising a closed envelope (1) made of a transparent or semitransparent material, provided with at least two holes (2, 3) in substantially opposite positions wherein a tooth to be operated (4) and a dental instrument (7) respectively can be inserted, as well as with a rigid or semirigid perimetrical structure, which divides the envelope (1) into two portions, each one comprising one of said holes (2, 3).
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Inventors:
MORTATO SCIPIONE (IT)
Application Number:
PCT/IT2000/000220
Publication Date:
December 07, 2000
Filing Date:
May 29, 2000
Export Citation:
Assignee:
MORTATO SCIPIONE (IT)
International Classes:
A61C1/16; A61C5/12; A61C5/82; (IPC1-7): A61C/
Foreign References:
| US2637107A | 1953-05-05 | |||
| DE691434C | 1940-05-27 | |||
| US6024566A | 2000-02-15 |
Attorney, Agent or Firm:
Pizzoli, Antonio (Via Carducci 8, Milano, IT)
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Claims:
CLAIMS
| 1. | Protective device for dental use, characterized in that it comprises a closed envelope (1) made of a transparent or semitransparent flexible material, provided with at least two holes (2,3) in substantially opposite positions wherein a tooth (4) to be operated and a dental instrument (7) respectively can be inserted, as well as with a rigid or semirigid perimetrical structure (9), which divides the envelope (1) in two portions, each comprising one of said holes (2,3). Device according to the preceding claim, characterized in that said holes (2,3) are provided with strengthened elastic borders. Device according to any of the preceding claims, characterized in that a multiplicity of wings (6) is connected to the border of one hole (2), which can be seized and pulled in order to widen the opening of said hole (2). Device according to any of the preceding claims, characterized in that said envelope (1) is provided with one or more further holes (12). Device according to the preceding claim, characterized in that at least one of said further holes (12) is passed through by a sucking duct (10). Device according to the preceding claim, characterized in that the free end of said sucking duct is provided with a protecting grill (11). Device according to any of the preceding claims, characterized in that said perimetrical structure (9) comprises a rigid ring. Device according to any of the preceding claims, characterized in that said perimetrical structure (15) is hollow and is provided with a fitting (14) for connection with a sucking duct (13) as well as with a multiplicity of sucking nozzles (16) turned towards the inside of the structure irself. |
Description:
INTERNATIONAL SEARCH REPORT | Int lalApplicatlonNo PCT/IT00/00220 Patent document Publication Patent family Publication cited in search report date member (s) date US 2637107 A 05-05-1953 NONE __________________ ___________________________________________________ DE 691434 0 NONE DE 691434 C NONE US 6024566 A 15-02-2000 NONE ____________________________________________________________
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