Absolute Position Determination of Movably Mounted Member in Medication Delivery Device
First Claim
1. A medication delivery device comprising a position determining assembly for determining absolute positions of a first member relative to a second member of the medication delivery device, the position determining assembly comprising:
- first and second electrically conducting electrodes arranged on the first member, wherein the first and second electrically conducting electrodes are electrically connected through an electronic device having a measurable electronic value, and wherein the first and second electrically conducting electrodes form part of a first group of electrodes,first and second contact members being adapted to establish galvanic electrical connections to the first and second electrically conducting electrodes, said first and second contact members further being adapted to be slid across the first and second electrically conducting electrodes when the first member is moved relative the second member, andan electronic control circuit electrically coupled to the first and second contact members, the electronic control circuit being adapted to determine the measurable electronic value of the electronic device, the electronic control circuit further being adapted to compare a determined measurable electronic value with a set of predetermined values.
1 Assignment
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Accused Products
Abstract
The present invention relates to a medication delivery device for expelling set doses of medicament, the medication delivery device comprising a position determining arrangement for detecting absolute positions of a movably mounted member, such as a dose indicator barrel, relative to a housing of the medication delivery device. The position determining arrangement comprises a plurality of electrically conducting electrodes arranged on an outer surface of the movably mounted member, and a plurality of contacts members fixedly arranged relative to the housing of the medication delivery device. A first and a second contact member are arranged to follow a first path across the electrically conducting electrodes upon movement of the movably mounted member relative to the housing, whereas a third and a fourth contact member are arranged to follow a second path across the electrically conducting electrodes upon movement of the movably mounted member relative to the housing.
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Citations
34 Claims
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1. A medication delivery device comprising a position determining assembly for determining absolute positions of a first member relative to a second member of the medication delivery device, the position determining assembly comprising:
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first and second electrically conducting electrodes arranged on the first member, wherein the first and second electrically conducting electrodes are electrically connected through an electronic device having a measurable electronic value, and wherein the first and second electrically conducting electrodes form part of a first group of electrodes, first and second contact members being adapted to establish galvanic electrical connections to the first and second electrically conducting electrodes, said first and second contact members further being adapted to be slid across the first and second electrically conducting electrodes when the first member is moved relative the second member, and an electronic control circuit electrically coupled to the first and second contact members, the electronic control circuit being adapted to determine the measurable electronic value of the electronic device, the electronic control circuit further being adapted to compare a determined measurable electronic value with a set of predetermined values. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for determining absolute positions of a first member relative to a second member of a medication delivery device, the method comprising:
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providing first and second electrically conducting electrodes arranged on the first member, wherein the first and second electrically conducting electrodes are electrically connected through an electronic device having a measurable electronic value, and wherein the first and second electrically conducting electrodes form part of a first group of electrodes, providing first and second contact members being adapted to establish galvanic electrical connections to the first and second electrically conducting electrodes, said first and second contact members further being adapted to be slided across the first and second electrically conducting electrodes when the first member is moved relative to the second member, and determining the measurable electronic value of the electronic device, and comparing the determined measurable electronic value with a set of predetermined values. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification