US Patent 11779709 Supplemental device for attachment to an injection device
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US Patent 11779709 Supplemental device for attachment to an injection device
Article
Patent abstract
A supplemental device for attachment to an injection device, the supplemental device having a housing containing at least two electromechanical switches each having an open state and a closed state and a protrusion associated with each switch configured to protrude from the housing so as to contact a rotatable surface of the injection device while the supplemental device is attached to the injection device; and a processor arrangement configured to detect a change in the state of each of the switches; and to determine a direction of rotation of the rotatable surface of the injection device from the detected state changes.
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Patent Number
Patent Inventor Names
David Aubrey Plumptre
David Richard Mercer
Paul Richard Draper
Robert Veasey
Date of Patent
October 10, 2023
Patent Application Number
17728165
Date Filed
April 25, 2022
Patent Citations
Patent Primary Examiner
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