US 12,290,472 B2
Hydrodynamically actuated preservative free dispensing system
Yehuda Ivri, Newport Coast, CA (US)
Assigned to BAUSCH + LOMB IRELAND LIMITED, Dublin (IE)
Filed by Bausch + Lomb Ireland Limited, Dublin (IE)
Filed on Mar. 11, 2022, as Appl. No. 17/692,991.
Application 17/692,991 is a continuation in part of application No. 17/509,383, filed on Oct. 25, 2021, granted, now 11,938,057.
Application 17/509,383 is a continuation in part of application No. 17/233,105, filed on Apr. 16, 2021, granted, now 11,925,577.
Claims priority of provisional application 63/212,545, filed on Jun. 18, 2021.
Claims priority of provisional application 63/159,830, filed on Mar. 11, 2021.
Claims priority of provisional application 63/011,808, filed on Apr. 17, 2020.
Prior Publication US 2022/0192874 A1, Jun. 23, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 9/00 (2006.01)
CPC A61F 9/0026 (2013.01) 11 Claims
OG exemplary drawing
 
1. Apparatus for delivering a liquid to an eye of a patient, the apparatus comprising:
a) a reservoir assembly; and
b) an actuator assembly;
c) wherein the reservoir assembly includes a reservoir configured to contain the liquid and a check valve, wherein the check valve includes an aperture through which the liquid can be dispensed and a pin member that engages with the aperture to provide a normally closed configuration of the check valve;
d) wherein the actuator assembly includes an actuator configured to provide a mechanical excitation to the reservoir assembly that generates a corresponding hydrodynamic excitation of the liquid;
e) wherein the hydrodynamic excitation of the liquid ejects the liquid through the aperture by elastically deforming the aperture to open the check valve; and
f) wherein the actuator assembly can be connected to and disconnected from the reservoir assembly by a user, whereby the reservoir assembly is disposable.