NICI GITTENS,NEIL THOMAS,JULIAN SHAPLEY,MATTHEW POWELL
申请号：
HK16104431.1
公开号：
HK1216399A
申请日:
2016.04.18
申请国别(地区):
HK
年份:
2016
代理人:
摘要：
A therapeutic product delivery device comprising a circuit layer 154, an actuator layer carrying an actuator, an occlusion detection layer 118, and a valve layer, through which a therapeutic product is conveyed by the action of the actuator. A plurality of conductive pins 155 extend from the circuit layer through or to each of the actuator layer, the occlusion detection layer 118 and the valve layer, the conductive pins aligning the layers with each other. The occlusion detection layer 118 comprises a plurality of contacts 820, each electrically connected to a respective one of the conductive pins 155, the contacts being provided at a detection region 800 at which the therapeutic product is deposited in the event of a blockage. A blockage inhibiting the therapeutic product from being conveyed to the patient is detected when therapeutic product deposited in the detection region 800 provides an electrical connection between the contacts 820. The conductive pins 155 therefore provide at least two functions firstly they align the layers of the cartridge (at assembly and during use), and a secondly they provide a conductive route between the circuit layer 154 and the occlusion layer 118, permitting therapeutic product deposited at the occlusion layer 118 to be able to complete an electric circuit with the circuit layer 154 to enable occlusion detection.
