DOSE SENSING MODULE WITH FRICTION ENHANCING MEANS

DOSE SENSING MODULE WITH FRICTION ENHANCING MEANS

The present invention provides a sensor module adapted to be arranged in a cartridge based drug delivery device between a rotatable piston rod and a cartridge piston for capturing dose data from a dose expelling event, the sensor module (50) extending along a reference axis and comprising: a first m...

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Hauptverfasser: HELBO, Janus, JAKOBSEN, Nikolaj, Eusebius
Format: Patent
Sprache:eng ; fre ; ger
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DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
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creator HELBO, Janus
JAKOBSEN, Nikolaj, Eusebius
description The present invention provides a sensor module adapted to be arranged in a cartridge based drug delivery device between a rotatable piston rod and a cartridge piston for capturing dose data from a dose expelling event, the sensor module (50) extending along a reference axis and comprising: a first module part (51) adapted to engage the cartridge piston and comprising anti-rotation means for establishing a frictional interface to the cartridge to impede rotation of the first module part (51) relative thereto, a second module part (54) adapted to engage the rotatable piston rod, and sensor means (52, 152, 252; 53, 153, 253) adapted to detect an extent of relative rotational motion between the first module part (51) and the second module part (54), wherein the anti-rotation means comprises a plurality of radially outwardly projecting studs (51.1; 351.1; 451.1), each comprising a contact surface (51.8; 351.8; 451.8, 451.9) adapted to establish frictional contact with an interior surface of the cartridge.
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subjects DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
title DOSE SENSING MODULE WITH FRICTION ENHANCING MEANS
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