Drug delivery device with dose capturing module
First Claim
1. A drug delivery device comprising:
- a housing,a drug-filled cartridge or structure for receiving a drug-filled cartridge, the cartridge comprising an axially displaceable piston and a distal outlet portion,drug expelling structure comprising;
dose setting structure allowing a user to set a dose of drug to be expelled,an axially displaceable piston rod adapted to move the piston of a cartridge in a distal direction to thereby expel drug from the cartridge, anda rotational member adapted to rotate relative to the housing and corresponding to a set and/or expelled dose,sensor structure adapted to detect a set and/or an expelled dose, comprising;
a first portion mounted to and rotating with the rotational member, comprising;
electronic processor circuitry, anda first rotary sensor part,a second portion comprisinga second rotary sensor part mounted non-rotationally relative to the housing,whereby the first and second rotary sensor parts rotate relative to each other during setting and/or expelling of a dose of drug.
1 Assignment
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Accused Products
Abstract
A drug delivery system is provided including a drug expelling structure adapted to expel a set dose from a drug-filled cartridge, the expelling structure including a rotational member adapted to rotate relative to a housing and corresponding to a set and/or expelled dose, the system including a sensor adapted to detect a set and/or an expelled dose. The sensor includes a first portion mounted to and rotating with the rotational member, and a second portion including a second rotary sensor part mounted non-rotationally relative to the housing. The first portion includes electronic circuitry, and a first rotary sensor part, and the second portion includes a second rotary sensor part mounted non-rotationally relative to the housing. The first and second rotary sensor parts rotate relative to each other during setting and/or expelling of a dose of drug.
52 Citations
15 Claims
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1. A drug delivery device comprising:
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a housing, a drug-filled cartridge or structure for receiving a drug-filled cartridge, the cartridge comprising an axially displaceable piston and a distal outlet portion, drug expelling structure comprising; dose setting structure allowing a user to set a dose of drug to be expelled, an axially displaceable piston rod adapted to move the piston of a cartridge in a distal direction to thereby expel drug from the cartridge, and a rotational member adapted to rotate relative to the housing and corresponding to a set and/or expelled dose, sensor structure adapted to detect a set and/or an expelled dose, comprising; a first portion mounted to and rotating with the rotational member, comprising; electronic processor circuitry, and a first rotary sensor part, a second portion comprising a second rotary sensor part mounted non-rotationally relative to the housing, whereby the first and second rotary sensor parts rotate relative to each other during setting and/or expelling of a dose of drug. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A drug delivery system comprising:
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a drug delivery assembly comprising; a housing, a drug-filled cartridge or structure for receiving a drug-filled cartridge, the cartridge comprising an axially displaceable piston and a distal outlet portion, drug expelling structure comprising; dose setting structure allowing a user to set a dose of drug to be expelled, an axially displaceable piston rod adapted to move the piston of a cartridge in a distal direction to thereby expel drug from the cartridge, a rotational member adapted to rotate corresponding to a set and/or expelled dose, and an axially moveable release member adapted to release the drug expelling structure to thereby expel the set dose of drug, first and second modules each comprising; first coupling structure allowing the module to be mounted non-rotationally to the rotational member, wherein a mounted module serves to transfer an axially directed force acting to move the release member, wherein the first module comprises no electronic processor circuitry, and wherein the second module is a self-contained sensor module, comprising; a first portion comprising; the first coupling structure, electronic processor circuitry, and a first rotary sensor part, a second portion comprising; a second rotary sensor part mounted rotationally relative to the housing, and second coupling structure allowing the second rotary sensor part to be mounted non-rotationally to the housing, whereby the first and second rotary sensor parts of a mounted sensor module rotate relative to each other during setting and/or expelling of a dose of drug to thereby detect a set and/or expelled dose. - View Dependent Claims (15)
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Specification