Audible indicator
AssigneeSanofi-Aventis Deutschland GmbH
InventorsCarsten Mosebach, Thomas Mark Kemp, Louise Hodgson, William Timmis
Life of this patent
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Abstract
The disclosure relates to an audible indicator in combination with a drug delivery device having a resilient force member capable of resting in either of two states. In a biased state, the resilient force member is biased and stores energy and in a relaxed state, the resilient force member is relaxed. The resilient force member releases the stored energy when changing from the biased state into the relaxed state, thereby generating an audible signal, wherein the resilient force member is supported by a retaining element in the biased state in order to prevent transition into the relaxed state.
Claims18
A drug delivery device comprising:
- a case;
- a syringe contained within the case, wherein the syringe contains a medicament and is connected to a needle;
- a plunger movable in a distal direction from a proximal position to a distal position to deliver the medicament from the syringe;
- a needle shroud telescopically coupled to the case and movable between a first extended position relative to the case in which the needle is covered and a retracted position in which the needle is exposed;
- and
- an audible indicator configured to contact a portion of a rear of the case to generate an audible signal at an end of medicament delivery, wherein the audible indicator comprises:
- a resilient force member comprising a cross bend running perpendicular to a longitudinal axis of the resilient force member, wherein the cross bend divides the resilient force member into two sections angled to each other, wherein the two sections have a same length;
- and
- two tabs projecting radially from the two sections of the resilient force member, wherein the two tabs are opposite each other, wherein the tabs are angled relative to the two sections.
An audible indicator configured to contact a portion of a rear of a case of a drug delivery device to generate an audible signal at an end of medicament delivery, the audible indicator comprising:
- a resilient force member comprising a cross bend running perpendicular to a longitudinal axis of the resilient force member, wherein the cross bend divides the resilient force member into two sections angled to each other, wherein the two sections have a same length;
- and
- two tabs projecting radially from the two sections of the resilient force member, wherein the two tabs are opposite each other, wherein the tabs are angled relative to the two sections;
- wherein the two tabs are configured to engage with the case of the drug delivery device.
Dependencies are inferred from the claim text.