DOSING MECHANISM FOR A DRUG DELIVER DEVICE
First Claim
Patent Images
1. A maximum settable dose feature for a drug delivery device comprising, in combination,a. a movable dose setting component;
- b. a locking band having an unlocked configuration in rotational or linear engagement with the dose setting component and a locked configuration that provides a permanent stop for the dose setting component;
wherein the locking band transitions from the unlocked to the locked configuration after a first dose is set.
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Abstract
A maximum settable dose feature is disclosed that is set by a user or health care professional one time that prevents future injections from exceeding the desired maximum dose. The feature includes a locking band initially in an unlocked configuration, which transforms to a locked configuration when activated after setting a desired maximum dose. The feature can include a trigger mechanism to transform the locking band to the locked configuration.
33 Citations
19 Claims
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1. A maximum settable dose feature for a drug delivery device comprising, in combination,
a. a movable dose setting component; -
b. a locking band having an unlocked configuration in rotational or linear engagement with the dose setting component and a locked configuration that provides a permanent stop for the dose setting component; wherein the locking band transitions from the unlocked to the locked configuration after a first dose is set. - View Dependent Claims (2, 3, 4)
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5. An irreversible locking mechanism for setting a maximum dose for a drug delivery device comprising, in combination,
a. an inner body having a distal end, a proximal end and a helical grove positioned along its axis from the proximal end to the distal end; -
b. a rotatable number sleeve; c. a threaded collar attached to the number sleeve that rotates with number sleeve about the helical grove of the inner body; d. a locking band having a first unlocked configuration on the inner body and a second locked configuration on the inner body; wherein the locking band transitions from the first to the second configuration after a first dose is set. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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12. A method of setting a permanent maximum settable dose in a drug delivery device having,
a. a movable dose setting component; -
b. a locking band having an unlocked configuration in rotational or linear engagement with the dose setting component and a locked configuration that provides a permanent stop for the dose setting component; wherein the locking band transitions from the unlocked to the locked configuration after a first dose is set; the method comprises, c. rotating or pulling the dose setting component to set a first dose; d. rotating or pulling the locking band in the unlocked position while in rotational or linear engagement with the dose setting component; e. stopping rotation or linear movement of the dose setting component when the first dose is reached; and f. reversing rotation or linear movement of the dose setting component causing the locking band to transition from the unlocked to the locked configuration.
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13. A method of setting a permanent maximum settable dose in a drug delivery device having,
a. an inner body with a distal end, a proximal end, and a helical grove positioned along its axis from the proximal end to the distal end; -
b. a rotatable number sleeve; c. a threaded collar attached to the number sleeve that rotates with number sleeve about the helical grove of the inner body; d. a locking band having a first unlocked configuration on the inner body and a second locked configuration on the inner body; the method comprises, e. rotating the number sleeve to set a first dose; f. rotating the threaded collar with the number sleeve during setting of the first dose, where the threaded collar and number sleeve move in the proximal direction with the threaded collar engaging the helical grove of the inner body; g. rotating the locking band in the unlocked position while in rotational engagement with the threaded collar; h. stopping rotation of the number sleeve when the first dose is reached; and i. reversing rotation of the number sleeve causing the threaded collar to move distally along the helical grove of the inner body and to disengage from the locking band causing the locking band to irreversible engage the inner body. - View Dependent Claims (14)
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15. An irreversible locking mechanism for setting a maximum dose for a drug delivery device comprising, in combination,
a. an inner body having a distal end, a proximal end, and a helical grove positioned along its axis from the proximal end to the distal end; -
b. a rotatable number sleeve; c. a threaded collar attached to the number sleeve that rotates with number sleeve while engaged with the helical grove of the inner body; d. a locking band having a first unlocked configuration on the inner body and a second locked configuration on the inner body; e. a release trigger that maintains the locking band in the first unlocked configuration; and wherein the locking band transitions from the first to the second position after a first dose is set when a user activates the trigger. - View Dependent Claims (16, 17)
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18. A method of setting a permanent maximum settable dose in a drug delivery device having,
a. an inner body with a distal end, a proximal end, and a helical grove positioned along its axis from the proximal end to the distal end; -
b. a rotatable number sleeve; c. a threaded collar attached to the number sleeve that rotates with number sleeve about the helical grove of the inner body; d. a locking band having a first unlocked configuration on the inner body and a second locked configuration on the inner body; e. a release trigger that maintains the locking band in the first unlocked configuration; the method comprises, f. rotating the number sleeve to set a first dose; g. rotating the threaded collar with the number sleeve during setting of the first dose, where the threaded collar and number sleeve move in the proximal direction with the threaded collar engaging the helical grove of the inner body; h. rotating the locking band in the unlocked position while in rotational engagement with the threaded collar; i. stopping rotation of the number sleeve when the first dose is reached; and j. activating the trigger and causing the locking band to irreversible engage the inner body. - View Dependent Claims (19)
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Specification