US 12,390,575 B2
Apparatus and method for filtering
Kyrylo Shvetsov, Depew, NY (US); Gregory Pepe, Lancaster, NY (US); and Samantha Bonano, Williamsville, NY (US)
Assigned to Buffalo Filter LLC, Lancaster, NY (US)
Appl. No. 17/261,900
Filed by Buffalo Filter LLC, Lancaster, NY (US)
PCT Filed Nov. 21, 2019, PCT No. PCT/US2019/062636
§ 371(c)(1), (2) Date Jan. 21, 2021,
PCT Pub. No. WO2020/106970, PCT Pub. Date May 28, 2020.
Claims priority of provisional application 62/770,486, filed on Nov. 21, 2018.
Prior Publication US 2022/0347372 A1, Nov. 3, 2022
Int. Cl. A61M 1/00 (2006.01); A61B 17/34 (2006.01); B01D 46/00 (2022.01); B01D 46/10 (2006.01); B01D 46/54 (2006.01)
CPC A61M 1/79 (2021.05) [A61B 17/3421 (2013.01); A61B 17/3423 (2013.01); B01D 46/0002 (2013.01); B01D 46/0047 (2013.01); B01D 46/10 (2013.01); B01D 46/543 (2013.01); A61B 2217/005 (2013.01); A61B 2218/008 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An apparatus for evacuation, the apparatus comprising:
a trocar comprising an inlet at a distal end, an outlet, and an exit port at a proximal end, the inlet, the outlet, and the exit port are fluidly connected by a tubular hollow body circumscribing a cavity extending through a longitudinal axis of the trocar, the trocar includes a filter maintained within the cavity operable to filter at least one of fluid and particulates from a flow passing through the cavity, wherein the filter further comprises a liquid trap operable to filter liquid and a filter media operable to filter particulate materials; and
a vacuum source fluidly connected to the exit port, the vacuum source operable to pull at least one of fluid and particulates from the cavity through the inlet, the cavity and the outlet, wherein the trocar passively allows a flow of the at least one of fluid and particulates through the inlet, the cavity, and the outlet when the vacuum source is in an off position, wherein the trocar passively allows a flow of the at least one of fluid and particulates through the inlet, the cavity, and the exit port when the exit port is in an open position, and wherein the exit port is operable to allow a surgical tool to pass through the exit port to the cavity and the inlet.