US 12,280,202 B2
Rolling surgical drains
E. Skott Greenhalgh, Gladwyne, PA (US); and Jason Keiser, Exton, PA (US)
Assigned to Koko Medical, Inc., Exton, PA (US)
Appl. No. 17/998,919
Filed by Koko Medical, Inc., Exton, PA (US)
PCT Filed May 13, 2022, PCT No. PCT/US2022/029171
§ 371(c)(1), (2) Date Nov. 15, 2022,
PCT Pub. No. WO2022/241206, PCT Pub. Date Nov. 17, 2022.
Claims priority of provisional application 63/188,385, filed on May 13, 2021.
Prior Publication US 2023/0241303 A1, Aug. 3, 2023
Int. Cl. A61M 1/00 (2006.01)
CPC A61M 1/87 (2021.05) [A61M 1/915 (2021.05); A61M 1/916 (2021.05)] 30 Claims
OG exemplary drawing
 
1. A surgical drain system, the system comprising:
a first elongate member having a first lumen;
a second elongate member that is slidably disposed in the first lumen;
an invertible porous mesh coupled at a first end to a distal end region of the first elongate member and at a second end to a distal end of the second elongate member, wherein the invertible porous mesh has an expanded configuration, in which the invertible porous mesh is extended distally out of the first elongate member, and a retracted configuration in which the invertible porous mesh is inverted and withdrawn into the first lumen, the invertible porous mesh having a pore size that is 1 mm or greater to allow fluid and clot material to pass easily and to distribute suction within a tissue region being treated, wherein the invertible porous mesh is configured to be withdrawn into the first elongate member after draining the tissue region; and
a vacuum channel extending around the second elongate member from a proximal vacuum port to a proximal end of the first elongate member so that the suction can be applied through the invertible porous mesh when it is extended distally of the second elongate member in the expanded configuration.