Inner housing for a drug delivery device
First Claim
Patent Images
1. A dose setting mechanism for a drug delivery device, said dose setting mechanism comprising:
- an outer housing;
an inner housing having an external groove, the inner housing having an inner surface comprising a mechanical configuration;
a driver;
a dial sleeve disposed between said outer housing and said inner housing, said dial sleeve being rotatably engaged with said external groove of said inner housing; and
a dose dial grip rotatably coupled to said dial sleeve, said dose dial grip being non-rotatably coupled to a dose button,wherein, when a dose is set by rotating said dose dial grip of said dose setting mechanism, said dial sleeve and said driver are both rotated with respect to both said outer housing and said inner housing and said dial sleeve and said driver are both translated away from both said outer housing and said inner housing, andwherein the mechanical configuration of the inner surface of the inner housing is configured to prevent rotation of said driver relative to said inner housing during dispensing of said dose set by said dose setting mechanism to guide said driver to dispense said dose.
1 Assignment
0 Petitions
Accused Products
Abstract
A dose setting mechanism for a drug delivery device is disclosed. The mechanism comprises an outer housing and an inner housing having an external groove. The inner housing guides a driver to dispense a set dose. A dial sleeve is disposed between the outer and inner housing and is rotatably engaged with the inner housing. When a dose is set, the dial sleeve is rotated and translates away from both the outer housing and the inner housing.
-
Citations
21 Claims
-
1. A dose setting mechanism for a drug delivery device, said dose setting mechanism comprising:
-
an outer housing; an inner housing having an external groove, the inner housing having an inner surface comprising a mechanical configuration; a driver; a dial sleeve disposed between said outer housing and said inner housing, said dial sleeve being rotatably engaged with said external groove of said inner housing; and a dose dial grip rotatably coupled to said dial sleeve, said dose dial grip being non-rotatably coupled to a dose button, wherein, when a dose is set by rotating said dose dial grip of said dose setting mechanism, said dial sleeve and said driver are both rotated with respect to both said outer housing and said inner housing and said dial sleeve and said driver are both translated away from both said outer housing and said inner housing, and wherein the mechanical configuration of the inner surface of the inner housing is configured to prevent rotation of said driver relative to said inner housing during dispensing of said dose set by said dose setting mechanism to guide said driver to dispense said dose. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A dose setting mechanism for a drug delivery device, said dose setting mechanism comprising:
-
an outer housing; an inner housing having an external groove, said inner housing comprising an internal surface defining a spline or a groove; a driver; a dial sleeve disposed between said outer housing and said inner housing, said dial sleeve being rotatably engaged with said external groove of said inner housing; and a dose dial grip rotatably coupled to said dial sleeve, said dose dial grip being non-rotatably coupled to a dose button, wherein, when a dose is set by rotating said dose dial grip of said dose setting mechanism, said dial sleeve and driver are both rotated with respect to both said outer housing and said inner housing and are translated away from both said outer housing and said inner housing, and wherein said spline or said groove of said inner housing is configured to guide said driver to dispense said dose set by said dose setting mechanism.
-
Specification