Patent ID: 11951036
Assignee: HOFFMANN-LA ROCHE, INC.
Field: Measurement (Instruments)
Classification: CPC A  G  B | IPC A

Claim 0:
1. A device for providing a droplet of a liquid stored in an interior of a vial, comprising:
a support body; and
a resilient dome portion mounted to the support body to form a chamber comprising air, the resilient dome portion being configured to create an air flow with the air in the chamber when compressed by a user and to return to its original shape when released by the user,
wherein the support body comprises a vial seat arranged to receive the vial, a nozzle, an air flow conduit and a transfer conduit connecting the vial seat with the nozzle,
wherein the support body is arranged such that, when the vial is received by the vial seat,
the air flow conduit establishes a fluid connection between the interior of the vial and the chamber,
the transfer conduit establishes a fluid connection between the vial and the nozzle, and
on activation of the resilient dome portion by compression by the user, the air flow delivers air into the vial such that a pressure rise is created in the interior of the vial which causes liquid to be transferred from the vial to the nozzle through the transfer conduit;

wherein, after compression and release by the user, re-expansion of the resilient dome portion causes air to be drawn through the nozzle into the interior of the vial and into the chamber;
wherein the transfer conduit includes a pointed end section dimensioned to end in or adjacent to the vial seat of the support body and is positioned to receive the liquid from the interior of the vial, when the vial is received by the vial seat; and
wherein the air flow conduit includes a pointed end section that protrudes within the interior of the vial beyond the pointed end section of the transfer conduit.