Pen-type drug injector with dose encoder having piezoelectric transducers and alphanumeric segmented electronic display therefor

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United States of America Patent

PATENT NO 9858887
SERIAL NO

14648569

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Abstract

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A display arrangement for e.g. a medical substance delivery device includes a movable control member, at least one transducer responsive to movement of the control member to convert mechanical energy into electrical energy to output an electrical signal, a drive circuit for receiving the electrical signal and for outputting an output drive signal, and a display device for receiving the output drive signal and displaying a variable image that varies consequent on the relative movement. The display may be a bistable display, so that the display function is self-powered without a requirement for a battery or the like. The parameter displayed for a medical substance delivery device may be a dose volume, a count of doses delivered, progress and/or completion of a dose. The drive circuit is an absolute position encoder and detects the actual position of the control member and does not deduce the position by counting pulses.

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Patent Owner(s)

Patent OwnerAddress
OWEN MUMFORD LIMITEDBROOK HILL WOODSTOCK OXFORDSHIRE OXFORD OX20 1TU

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cowe, Toby Oxford, GB 71 820
Santella, Cosimo Oxford, GB 3 50

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