| 摘要 |
<p num="1"><br/><br/><br/>An injection device for holding and activating a two-chamber ampulla has <br/>components whose relative movement causes the pistons of the two-chamber <br/>ampulla to be moved in order to mix the substances, as well as devices for <br/>injecting the product which is mixed in this way. For this purpose, a <br/>receptacle (103) into which the two-chamber ampulla (111) can be inserted and <br/>secured is held in a housing (101), and the receptacle (103) can be displaced <br/>by means of a carriage (108). A tappet (104) which acts on the pistons (111A, <br/>111B) is movably held in the receptacle (103). A traction cable (114) which is <br/>deflected by means of a roller (109) which is mounted on the carriage (108) <br/>and one of whose ends is connected to the receptacle (103) and the other end <br/>of which is connected to a tension spring (110) which is held on the housing <br/>(101) is provided in order to carry out a mixing stroke, insertion stroke, <br/>injection stroke and a return stroke. Devices which can be activated <br/>automatically and/or manually between the housing (101), receptacle (103), <br/>tappet (104) and carriage (108) control their alternating coupling to the <br/>traction cable (114) and thus the sequence of the mixing stroke, insertion <br/>stroke, injection stroke and return stroke. The invention thus provides a <br/>partially automatic injection device for two-chamber ampullas whose handling <br/>comfort and safety for the patient are substantially improved.<br/> |
