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Abstract

A dual-chamber suction filtering device and filtering method, belonging to a surgical waste liquid collecting device, and solving the problem in the prior art that drainage fluid of an endoscope shaver system and a plasma surgical system is easily contaminated and cannot be separated in sections. The dual-chamber suction filtering device comprises a dual-chamber one-way valve (1), a switching valve (4), and a filtering branch (2) and a direct-passing main path (3) which are connected to each other in parallel, the water outlet of the dual-chamber one-way valve (1) being connected to the water inlet of the filtering branch (2) and the water inlet of direct-passing main path (3); the switching valve (4) is provided on the joint between the water inlet of the filtering branch (2) and the water inlet of direct-passing main path (3); the dual-chamber one-way valve (1) has a first drainage fluid system (5) setting, a second drainage fluid system (6) setting, and a dual-drainage fluid system (5, 6) setting, and the switching valve (4) has a filtering setting and a direct-passing setting. The dual-chamber suction filtering device and filtering method can be used for collecting and filtering drainage fluid.

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