Drug delivery dose setting mechanism with variable maximum dose
First Claim
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1. A drug delivery device having a variable maximum dose, said device comprising:
- a housing, said housing comprisinga helical groove, anda plurality of ratchet teeth;
a dial sleeve rotatably coupled to said helical groove of said housing, anda first stop component engaging a first set of said plurality of ratchet teeth of said housing, said first stop component located at a first stop location along an outer surface of said housing defining a first maximum dose of said drug delivery device;
wherein said dial sleeve moves said first stop component to a second set of said plurality of said ratchet teeth so that said first stop component moves along said outer surface of said housing to a second stop location, said second stop location defining a second maximum dose of said drug delivery device, andwherein said first stop component is user-adjustable (i) from said first stop location to said second stop location and (ii) from said second stop location to said first stop location, such that the variable maximum dose for the drug delivery device can be increased and decreased.
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Abstract
A method and system for proving a drug delivery device having a variable dose. The drug delivery device comprising a first tubular member and a second tubular member rotatably coupled to the first tubular member. A maximum stop component is operatively coupled to the first and second tubular member such that the maximum stop component is movable from a first position to a second position. The first position defines a first maximum dose that may be set by a user of said drug delivery device and the second position defines a second maximum dose that may be set by the user of said drug delivery device.
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Citations
12 Claims
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1. A drug delivery device having a variable maximum dose, said device comprising:
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a housing, said housing comprising a helical groove, and a plurality of ratchet teeth; a dial sleeve rotatably coupled to said helical groove of said housing, and a first stop component engaging a first set of said plurality of ratchet teeth of said housing, said first stop component located at a first stop location along an outer surface of said housing defining a first maximum dose of said drug delivery device; wherein said dial sleeve moves said first stop component to a second set of said plurality of said ratchet teeth so that said first stop component moves along said outer surface of said housing to a second stop location, said second stop location defining a second maximum dose of said drug delivery device, and wherein said first stop component is user-adjustable (i) from said first stop location to said second stop location and (ii) from said second stop location to said first stop location, such that the variable maximum dose for the drug delivery device can be increased and decreased. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification