US 11,849,915 B2
Suction valve of endoscope
Tsz Hang Ko, Hong Kong (CN)
Assigned to SML Med-Tech Solutions Limited, Hong Kong (CN)
Filed by SML Med-Tech Solutions Limited, Hong Kong (CN)
Filed on Apr. 21, 2022, as Appl. No. 17/725,621.
Claims priority of application No. 32021030996.1 (HK), filed on May 12, 2021.
Prior Publication US 2022/0361734 A1, Nov. 17, 2022
Int. Cl. A61B 1/00 (2006.01); F16K 31/528 (2006.01)
CPC A61B 1/00068 (2013.01) [F16K 31/5284 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A suction valve for an endoscope, wherein the endoscope comprises a first conduit and a second conduit, and the suction valve comprises a shaft, a pressing unit, and a holding seat;
wherein a first opening and a second opening are provided at a bottom and a sidewall of the shaft, respectively, the first opening communicating with the first conduit;
wherein the holding seat is sleeved in the shaft, and a middle portion of the shaft projects outward to form a ridge, the ridge being snap-fitted into the holding seat;
and wherein the pressing unit is connected to the shaft, the shaft being provided with a curved slide rail, the pressing unit being provided with a sliding ball at a position in contact with the curved slide rail, the pressing unit comprising a bump, a first slot being provided at a sidewall of the holding seat, the bump being snap-fitted with the first slot such that when the pressing unit is depressed, the bump moves in the first slot and the sliding ball slides along the curved slide rail to bring the shaft to rotate by a preset angle, such that the second opening communicates with the second conduit.