Robert Veasey,David Aubrey Plumptre,Paul Richard Draper,David Richard Mercer
申请号：
US14888724
公开号：
US20160082192A1
申请日:
2014.05.02
申请国别(地区):
US
年份:
2016
代理人:
摘要：
A supplemental device for attachment to an injection device, the supplemental device comprising: an electromechanical switch arrangement having an open state and a closed state, the electromechanical switch arrangement comprising a protrusion configured to contact a surface of the injection device when a dose of zero units is dialled into the injection device, wherein the state of the switch arrangement is configured to change when a dose dialled into the attached injection device is decreased from one unit to zero units； and a processor arrangement configured to: detect one or more changes in the state of the electromechanical switch arrangement； and determine from the one or more state changes that a dose of zero units is dialled into the injection device.
