| 摘要 |
Portable endermic injector of a mechanical type which comprises an aspiration and containment chamber, an assembly (12) to aspirate and to store, a cocking and trigger assembly (13) and an assembly (14) to read the quantity aspirated, and in which: - a containment assembly (11) comprising the aspiration and containment chamber and a piston (19) is screwed onto a frontal container (15), - the assembly (12) to aspirate and to store energy comprises means to regulate the pre-loading of a spring assembly (28) which consist of spacer rings (226) and means (15-23) having variable axial reciprocal positions, and - the reader assembly (14) comprises a threaded tract (46) and a slider (47) cooperating with a graduated area (50). |
