Injection device with electronic presentation of set doses
First Claim
1. An injection device comprising:
- a plurality of operative elements for setting and injecting of set doses of medicine;
signal generators connected to at least two of said operative elements to generate output signals representing operating conditions of said at least two operative elements, wherein the operating conditions indicated by such output signals individually are not indicative of whether an error state exists; and
an electronic circuit coupled to said signal generators for receiving said output signals and for determining whether the combination of said output signals indicates an error state for said device.
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Accused Products
Abstract
An injection device has signal generators (11, 12, 13, 14) which are connected to operative elements (8, 3, 5, 4) of the device and which give off signals which represents the operative condition of the device. The signals are sent to an electronic circuit which controls a presentation of the operational condition of the device and presents operational conditions, which are defined as not allowed, as error indications by switching off the display presenting the operational condition of the device. The number of signals from each generator is counted and a number of operations exceeding a pre-set number for the signal generator in question is interpreted as representing a not allowed operational condition.
321 Citations
17 Claims
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1. An injection device comprising:
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a plurality of operative elements for setting and injecting of set doses of medicine;
signal generators connected to at least two of said operative elements to generate output signals representing operating conditions of said at least two operative elements, wherein the operating conditions indicated by such output signals individually are not indicative of whether an error state exists; and
an electronic circuit coupled to said signal generators for receiving said output signals and for determining whether the combination of said output signals indicates an error state for said device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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- 12. An injection device comprising a housing, a dose-setting wheel rotatably supported by said housing for setting an injection dose, an injection button supported by said housing and moveable between a plurality of first positions, corresponding to selected doses, and a second position for injecting the selected dose, a first signal generator connected to said dose-setting wheel for generating a first output signal in response to rotation of said wheel, a second signal generator for generating a second output signal indicative of whether said injection button is in said second position or one of said first positions, and an electronic circuit coupled to said signal generators for receiving said output signals and for comparing said output signals with one another to determine whether the combination of said output signals indicate an error state for said device.
- 15. An injection device comprising a housing, a dose-setting wheel rotatably supported by said housing for setting an injection dose, an injection button supported by said housing and moveable between a plurality of first positions, corresponding to selected doses, and a second position for injecting the selected dose, a first signal generator connected to said dose-setting wheel for generating a first output signal in response to rotation of said wheel, a second signal generator for generating a second output signal indicative of whether said injection button is in said second position or one of said first positions, and an electronic circuit coupled to said signal generators for storing a number value for each generator representing the predetermined maximum desired use of said device, for receiving and counting the number of signals from each generator, and for generating a signal when the number of signals exceeds a corresponding stored value for said generator.
Specification