US 12,268,836 B2
Apparatus for negative-pressure therapy and irrigation
Timothy Mark Robinson, Shillingstone (GB); Christopher Brian Locke, Bournemouth, TX (US); and James A. Luckemeyer, San Antonio, TX (US)
Assigned to Solventum Intellectual Properties Company, Maplewood, MN (US)
Filed by Solventum Intellectual Properties Company, Maplewood, MN (US)
Filed on May 18, 2023, as Appl. No. 18/198,963.
Application 18/198,963 is a continuation of application No. 17/370,239, filed on Jul. 8, 2021, granted, now 11,697,015.
Application 17/370,239 is a continuation of application No. 15/580,756, granted, now 11,083,884, issued on Aug. 10, 2021, previously published as PCT/US2016/039610, filed on Jun. 27, 2016.
Claims priority of provisional application 62/186,093, filed on Jun. 29, 2015.
Prior Publication US 2023/0302269 A1, Sep. 28, 2023
Int. Cl. A61M 39/22 (2006.01); A61M 1/00 (2006.01); A61M 3/02 (2006.01); F16K 1/38 (2006.01); F16K 31/122 (2006.01); F16K 31/363 (2006.01); A61F 13/0206 (2024.01)
CPC A61M 39/227 (2013.01) [A61M 1/77 (2021.05); A61M 1/85 (2021.05); A61M 1/92 (2021.05); A61M 3/0254 (2013.01); A61M 39/22 (2013.01); A61M 39/228 (2013.01); F16K 1/38 (2013.01); F16K 31/1221 (2013.01); F16K 31/1226 (2013.01); F16K 31/363 (2013.01); A61F 13/0206 (2013.01); A61M 1/772 (2021.05); A61M 2039/226 (2013.01); Y10S 137/907 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a housing including an inlet and an outlet; and
a plunger disposed in the housing and defining an inlet chamber in fluid communication with the inlet and an outlet chamber in fluid communication with the outlet, the plunger configured to move between a first position, a second position, and a third position, the plunger comprising:
a head,
a rod extending from the head,
a plug attached to the rod opposite the head, the plug defining a first fluid passage configured to fluidly couple the outlet chamber to the outlet in the third position; and
a second fluid passage extending from the head and through the rod, the second fluid passage configured to provide fluid communication between the inlet chamber and the outlet chamber.