Anti-backflow and blockage-proof negative pressure drainage device
A negative pressure drainage and anti-clogging technology, applied in suction devices and other directions, can solve the problems of insufficient negative pressure attraction, laborious, aggravating abdominal infection, etc., to ensure the flow of body fluids, improve labor intensity, and prevent retrograde infection.
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[0017] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0018] The accompanying drawing is an embodiment disclosed by the invention. The anti-backflow and anti-blocking negative pressure drainage device of the present invention consists of a left valve sleeve 1, a liquid inlet valve core 2, a left spring 3, a left valve cover 4, a right valve sleeve 5, a liquid discharge valve core 7, a right spring 8, and a right valve cover 9. Syringe connection 6, liquid outlet connection 12 and other components. The main points of its structure are: the left valve sleeve 1 is provided with a liquid inlet valve core 2 that only allows body fluid to flow to the right; the right valve sleeve 5 is provided with a liquid discharge valve core 7 that only allows body fluid to flow to the lower right; And the liquid outlet connecting pipe 12 is glued with the right valve sleeve 5 respectively.
[0019] The left valv...
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