US 12,070,414 B2
Medical tools for corneal tissue delivery
Jerry W. Barker, Gretna, VA (US); and Kevin Potts, Lexington, NC (US)
Assigned to CorneaGen, Seattle, WA (US)
Filed by CORNEAGEN, Seattle, WA (US)
Filed on Jul. 14, 2021, as Appl. No. 17/375,279.
Claims priority of provisional application 63/052,957, filed on Jul. 17, 2020.
Prior Publication US 2022/0015944 A1, Jan. 20, 2022
Int. Cl. A61F 9/00 (2006.01); A61F 9/013 (2006.01)
CPC A61F 9/0017 (2013.01) [A61F 9/013 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A donor corneal tissue storage and delivery device, comprising:
a storage fluid;
a housing having a proximal end and a distal end;
a cannula having a proximal end and a distal end, said cannula disposed at a distal end of the housing;
a fluid channel connector disposed at a proximal end of the housing;
at least one fluid channel with a proximal end and a distal end, the proximal end coupled to the fluid channel connector and the distal end disposed within the proximal end of the cannula;
a flexible support configured to receive a donor corneal tissue and retract into the cannula;
a retractor shaft coupled to the flexible support;
one or more loading members held by the housing, coupled to the retractor shaft and operable to retract the retractor shaft and coupled flexible support thereby retracting the flexible support and donor corneal tissue into the cannula;
a deployment shaft coupled to the cannula and configured to retract into the distal end of the housing;
one or more deployment members coupled to the deployment shaft and operable to cause the deployment shaft to retract the cannula and to deliver the donor corneal tissue to an implantation site from the flexible support retracted into the cannula;
a removable reservoir comprising a reservoir base configured to removably couple the removable reservoir to a distal end of the deployment shaft, wherein the removable reservoir is in fluid communication with the at least one fluid channel and encloses the flexible support and cannula when the removable reservoir is removably coupled to the distal end of the deployment shaft, wherein the removable reservoir is configured to receive the storage fluid for hydrating the donor corneal tissue received by the flexible support while the flexible support is retracted into the cannula; and
wherein the at least one fluid channel, cannula, and the removable reservoir are all filled with the storage fluid.