Griffiths, Steven M.,Hill, Robert L.,Wilmot, John G.
申请号：
ES11153053
公开号：
ES2570781T3
申请日:
2004.10.21
申请国别(地区):
ES
年份:
2016
代理人:
摘要：
An automatic injection device (10) containing a pre-filled medication load for the automatic self-administration of the medicine during the actuation thereof, the device (10) comprising: a housing (110) a medicine chamber (150, 350) having a first compartment (152) and a second compartment (151), the first compartment (152) containing a first portion of medication and the second compartment (151) containing a second portion of medication for mixing with the first portion of medication； a joint structure (160, 360) between the first compartment (152) and the second compartment (151), the joint structure (160, 360) being initially in a sealing state that keeps the first compartment (152) separated from the second compartment (151)； a needle assembly (140, 340) that dispenses the drug load from the medicine chamber (150, 350), the needle assembly (140, 340) comprising a needle (141) and a needle holder (143, 343), the needle holder (143, 343) for mounting the needle (141) to the medication chamber (150, 350), defining a needle assembly chamber (394), which has a tapered inner surface radially inwards as it extends axially forward towards a rear end of the needle (141), the needle holder (143, 343) forming a channel from the medication chamber (150, 350) to the needle ( 141): and an activation assembly (120), in which the activation of the activation assembly (120) causes (a) the joint structure (160, 360) to be converted from the sealing condition to the mixing condition , (b) the first and second portions of medication are mixed, and (c) the first and second portions of mixed medications are forced through the needle assembly (140, 340), characterized in that it further comprises an insert (384) mounted on a front end of the medicine chamber (150, 350) adjacent to the needle assembly (140, 340), defining the insert (384) a flow path that radially tapers inwardly as it extends axially forward.Un dispositivo de inyección automática (10) que contiene una carga de medicam
