| 摘要 |
FIELD: medical engineering. ^ SUBSTANCE: device has body with automatically removable cannula having pieces possessing relative rotation properties between them and bushing for supporting the cannula in the device body. The bushing has two ends. Cannula is drawn into the device body due to spring pressure applied when body pieces coincide as a result of rotation allowing the used cannula to be drawn away into the device body to enable one to safely remove it later. ^ EFFECT: high reliability of device operation. ^ 23 cl, 9 dwg |
