Patent CH617857A5 successfully refreshed from Google Patents.
CH617857A5
Expired / Lapsed
CH
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Injection syringe, in particular for dental anaesthesia
Assignee: Jeanneret Gris Bernard Emile
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Filing: 1977-11-14
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Granted: —
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Expires: 1997-11-14
Abstract
Abstract This syringe comprises an ultrathin needle (2), a capsule (3) filled with a liquid (5) and closed by a stopper (4), a rod (7) with a bearing head (7a) which pushes the stopper (4) forward in the capsule, this rod advancing by a screw mechanism (7b) driven by a nut (8), itself actuated at its periphery by gearing (8a, 12a) which is driven by the shaft (14) of a dental micromotor (18). This syringe makes it possible to perform localised injections, by which it is possible for example to anaesthetise only one tooth of a patient. <IMAGE>
Inventors
- 👤 Bernard Emile Jeanneret-Gris
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-10-23 04:52
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/20
Claims Analysis
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