US 12,144,934 B2
Intermittent catheter
Lukas Kandrac, Flintshire (GB); Marian Novak, Flintshire (GB); Aliaksandr Piashevich, Flintshire (GB); David Donnelly, Flintshire (GB); and Patrik Lacko, Flintshire (GB)
Assigned to CONVATEC LIMITED, Flintshire (GB)
Filed by ConvaTec Limited, Flintshire (GB)
Filed on Oct. 23, 2023, as Appl. No. 18/492,200.
Application 18/492,200 is a continuation of application No. PCT/GB2022/051015, filed on Apr. 22, 2022.
Claims priority of application No. 2105824 (GB), filed on Apr. 23, 2021.
Prior Publication US 2024/0050693 A1, Feb. 15, 2024
Int. Cl. A61M 25/00 (2006.01); A61M 25/01 (2006.01)
CPC A61M 25/0017 (2013.01) [A61M 25/002 (2013.01); A61M 25/0082 (2013.01); A61M 25/01 (2013.01); A61M 25/0111 (2013.01); A61M 25/0113 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A catheter assembly comprising:
an external housing;
a catheter located within the external housing;
a movable insert comprising an internal housing arranged between the external housing and the catheter;
wherein an outer surface of the internal housing and an inner surface of the external housing together define a wetting agent storage chamber
wherein the internal housing is located in a radially spaced relation within the external housing to provide the storage chamber therebetween, and wherein either or both of the internal housing and external housing comprise a plurality of projections, the plurality of projections being distributed axially along the length of the internal housing or external housing extending between the internal housing and the external housing;
wherein at least one projection of the plurality of projections extends circumferentially around the internal housing;
wherein the at least one projection includes an axial flow passage therethrough or extends only partially around the internal housing to provide an axial flow passage therepast.