US 12,257,369 B2
Catheter assemblies with interfacial pH controller
David J. Farrell, Ballina (IE); Kevin Murnaghan, Ballina (IE); Carlos Horkan, Westport (IE); Satwinder S. Panesar, Foxford (IE); and Paul Healy, Claremorris (IE)
Assigned to Hollister Incorporated, Libertyville, IL (US)
Appl. No. 18/032,292
Filed by Hollister Incorporated, Libertyville, IL (US)
PCT Filed Nov. 2, 2021, PCT No. PCT/US2021/057664
§ 371(c)(1), (2) Date Apr. 17, 2023,
PCT Pub. No. WO2022/103619, PCT Pub. Date May 19, 2022.
Claims priority of provisional application 63/113,707, filed on Nov. 13, 2020.
Prior Publication US 2023/0390464 A1, Dec. 7, 2023
Int. Cl. A61L 29/02 (2006.01); A61L 29/10 (2006.01); A61M 25/00 (2006.01)
CPC A61L 29/02 (2013.01) [A61L 29/106 (2013.01); A61M 25/002 (2013.01); A61M 25/0045 (2013.01); A61L 2400/10 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A catheter assembly comprising:
a package defining a cavity;
a catheter including an insertion portion with at least a portion of the catheter having a hydrophilic surface contained within the cavity of the package;
a hydration liquid within the cavity of the package; and
an interfacial pH controller comprising a salt at least partially in contact with the hydration liquid of the cavity, wherein the interfacial pH controller is incorporated into a film that is separate from the insertion portion of the catheter.
 
17. A catheter assembly comprising:
a package defining a cavity;
a catheter with at least a portion of the catheter having a hydrophilic surface contained within the cavity of the package;
a hydration liquid within the cavity of the package; and
an interfacial pH controller in pill form comprising a salt at least partially in contact with the hydration liquid of the cavity.
 
21. A method of maintaining pH within a catheter package comprising:
placing a catheter with an insertion portion with at least a portion including a hydrophilic surface into a catheter package;
adding a hydration liquid to the catheter package; and
adding an interfacial pH controller comprising a salt to the catheter package so it is at least partially in contact with the hydration liquid of the catheter package, wherein the interfacial pH controller is incorporated into a film that is separate from the insertion portion of the catheter.