| 摘要 |
The claimed syringe relates to medical instruments and can be used for a local analgesia. It contains joining body (1) and barrel (2) with gear rod (3) inside which has kinematical connection with driver pawl (5) and stopper pawl (6) of return move of the plunger (3), which are hinged on a rotary handle (7). Fastening unit (11) of double-edged needle (12) is fixed on one of the ends of the barrel which provides for the turn of the needle up to 180~. A set of aspiration elements (16), spring (21) and squeezing bushing (22) permit to execute the aspiration test. The design of the driver unit permits to carry out an analgesia in two modes: discrete dosing, e.g., for the intraligamental analgesia, and free dosing for the conducting or infiltration analgesia.
|
