Disposable uterine cavity tissue aspirator

Abstract

The invention discloses a disposable uterine cavity tissue aspirator which comprises a needle cylinder, a connection device and a suction tube. The connection device is provided with a first port, a second port and a third port. The second port and the third port of the connection device are internally provided with a first one-way valve and a second one-way valve respectively; the first one-way valve only allows the second port to input air, and the second one-way valve only allows the third port to output air; the needle cylinder is connected with the first port of the connection device; the rear end of the suction tube is connected with the second port of the connection device, and the front of the suction tube is provided with an inlet. The disposable uterine cavity tissue aspirator is simple in structure, low in cost, capable of being used in a disposable mode and free of the problem of cross infection generated due to the fact that the disposable uterine cavity tissue aspirator is not cleaned completely or sterilized strictly; it is convenient for a doctor to search for the embryonic tissue in the uterine cavity or pick the uterine cavity tissue; the negative pressure in the suction tube can be controlled by controlling the pulling speed of the needle cylinder by the doctor according to requirements, and operation is quite convenient.

Description

technical field [0001] The invention relates to a disposable uterine cavity tissue aspirator. Background technique [0002] A uterine tissue aspirator is required when performing early pregnancy induction operations or extracting uterine cavity tissue for testing. The traditional uterine cavity tissue aspirator consists of a suction device or a pull rod and a suction tube. The structure of the suction device is complicated, the operation is troublesome, and the cost is high; although the cost of the pull rod is low, the negative pressure caused by the pull rod is weak when it is twitched, and the operation time is long and the effect is poor; The cervix requires anesthesia during the operation, and the patient feels strong pain. This suction tube is reused many times. If it is not cleaned or disinfected strictly, it is easy to cause cross-infection of the patient. Contents of the invention [0003] The purpose of the present invention is to provide a disposable uterine c...

AI Technical Summary

Problems solved by technology

The structure of the suction device is complicated, the operation is troublesome, and the cost is high; although the cost of the pull rod is low, the negative pressure caused by the pull rod is weak when it is twitched, and the operation time is long and the effect is poor; The cervix requires anesthesia during the operation, and the patient feels strong pain. This suction tube is reused many times. If it is not cleaned or sterilized strictly, it is easy to cause cross-infection of patients.

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