Administering apparatus with a resettable activating block
OwnerEdgar Hommanninventor
Life of this patent
Estimating the term…
Abstract
An administering apparatus for administering an injectable substance in doses is provided. The apparatus includes a casing with a reservoir for the substance, a conveying mechanism which acts to deliver a selected dose of the substance from the reservoir, a dosing and activating mechanism which performs a dosing movement and a delivery movement, and which is coupled to the conveying mechanism such that the delivery movement causes the selected dose to be delivered, a dosage indicator sleeve coupled to the dosing and activating mechanism, and a blocking member in a blocking engagement with the dosing and activating mechanism.
Claims19
An administering apparatus for administering an injectable product in selected doses, said administering apparatus comprising:
- a) a casing configured to hold a reservoir containing the product;
- b) a piston rod configured to act on the product to deliver a selected product dose from the reservoir;
- c) a dose setting member for performing a dosing movement and for causing delivery of a selected dose, said dose setting member operably coupled to the piston rod such that a delivery movement of the dose setting member causes the selected product dose to be delivered via actuation of the piston rod;
- d) a dose indicator sleeve coupled to the dose setting member such that the dose indicator sleeve is moved relative to the casing by the dosing movement of the dose setting member to indicate the selected product dose, the dose indicator sleeve comprising a reset cam protruding from the dose indicator sleeve;
- and
- e) a blocking member in a blocking engagement with the dose setting member in the front end position of the dose setting member to prevent the dose setting member from moving counter to an activating direction;
- f) wherein the blocking member comprises a counter reset cam protruding from the blocking member, and in a zero-dose position of the dose indicator sleeve, said reset cam and counter reset cam engage such that the blocking member is pressed out of the blocking engagement with the dose setting member.
Dependencies are inferred from the claim text.