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US 2026/0306750 A1Published application
Dose Divider
AssigneeSanofi Pasteur Limited
InventorsMichael Thomas Hrynyk, Qinglian Li, Nausheen Rahman
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AssigneeSanofi Pasteur Limited
InventorsMichael Thomas Hrynyk, Qinglian Li, Nausheen Rahman
Estimating the term…
A dose divider for releasable attachment to a plunger rod of a syringe comprises first and second arms. A front portion of the first arm and the front portion of the second arm form a channel therebetween for receiving the plunger rod. A resilient hinge pivotably couples the first arm and the second arm such that the dose divider is reversibly movable between first and second configurations. When the dose divider is in the second configuration, the dose divider is configured to receive the plunger rod in the channel through an opening formed between the front portions of the first and second arms. The channel has a shape configured to receive a specific outer shape of the plunger rod. The front portions of the first and second arms are closer when the dose divider is in the first configuration than when the dose divider is in the second configuration.
A dose divider (30) for releasable attachment to a plunger rod (12) of a syringe (10), the dose divider comprising:
A dose divider according to any one of the preceding claims, wherein the front portion of the first arm and the front portion of the second arm each comprises a respective guide surface (60, 61) for guiding the plunger rod through the opening towards the channel.
A dose divider according to any one of the preceding claims, comprising at least one of a first blocking projection (63) or a second blocking projection (64) located between the channel and the resilient hinge to inhibit movement of the plunger rod out of the channel.
A dose divider according to any one of the preceding claims, wherein the dose divider is integrally formed from a single piece of material, optionally wherein the material is a polymer.
A dose divider according to any one of the preceding claims, wherein the resilient hinge comprises a curved portion (51) coupled at either end to a respective straight portion (50a, 50b).
A dose divider according to any one of the preceding claims, wherein the resilient hinge is a living hinge integrally formed with the first arm and the second arm.
A medicament delivery device (70) comprising a dose divider (30) according to any preceding claim and a syringe (10), wherein the syringe comprises the plunger rod (12) and the dose divider is removably coupled to the plunger rod.
A medicament delivery device (70) comprising:
A system comprising:
Dependencies are inferred from the claim text.