Patent ID: 11918786
Assignee: SANOFI-AVENTIS DEUTSCHLAND GMBH
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A medicament delivery device comprising:
a housing;
a needle comprising a distal tip through which a dose of medicament is deliverable from the medicament delivery device into an injection site, wherein at least a portion of the needle extends distally out of the housing;
a sleeve assembly coupled to the housing, the sleeve assembly being adjacent to the needle, the sleeve assembly being movable during an injection process between a first position in which the sleeve assembly covers the portion of the needle extending distally out of the housing and a second position in which the needle at least partially extends distally beyond the sleeve assembly, wherein the sleeve assembly comprises a first sleeve and a second sleeve telescopically movable relative to one another;
one or more indicia on the sleeve assembly, the one or more indicia being configured to provide an indication of progress of the injection process, wherein the one or more indicia comprise a first indicia on the first sleeve and a second indicia on the second sleeve, the first indicia being different from the second indicia; and
a first biasing element configured to bias the first sleeve away from the housing; and
a second biasing element configured to bias the second sleeve away from the housing,
wherein the first biasing element and the second biasing element are configured such that a force needed to compress the first biasing element is less than a force needed to compress the second biasing element.