CPC A61M 5/1452 (2013.01) [A61M 1/3659 (2014.02); A61M 1/772 (2021.05); A61M 1/80 (2021.05); A61M 25/00 (2013.01); A61M 39/225 (2013.01); A61M 2005/1403 (2013.01); A61M 2005/1588 (2013.01); A61M 2005/16863 (2013.01); A61M 2025/0019 (2013.01); A61M 2205/3344 (2013.01)] | 18 Claims |
1. A catheter assembly, comprising:
a catheter including a lumen; and
a patency device connectable to the catheter, the patency device comprising:
a fluid reservoir designed to be placed in fluid communication with the lumen;
a positive pressure input portion having a distal end connected to the fluid reservoir, designed to provide at least one impulse of positive pressure to a fluid disposed within the lumen;
an interface portion including a proximal end coupled to the fluid reservoir and a distal end coupled to the lumen;
a normally closed two-way valve coupled in line between the fluid reservoir and the lumen; and
a negative pressure input portion operably connected to a fluid outlet of the normally closed two-way valve.
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