Divided manifold tee joint for germfree ovum aspiration needle

Abstract

The invention relates to a divided manifold tee joint for a germfree ovum aspiration needle. Three ports of the divided manifold tee joint for the germfree ovum aspiration needle are respectively communicated with the connection end (1) of a puncture needle of which the end is provided with an ultrasound echo area, a collection end (2) communicated with a vacuum suction device, and an infusion end (3) communicated with a low-pressure infusion device. The invention is characterized in that one end of the puncture needle is connected with the divided manifold tee joint and is communicated with the low-pressure infusion device by the bifurcation end of a handle, the inner chamber (4) of the divided manifold tee joint is provided with a chamber body which is partial to an ellipse, the diameter of the joint of the puncture needle end thereof ranges from 0.9 to 1.7mm, and the diameter of the joint of the inner chamber of the divided manifold tee joint on the collection end and the infusion device end thereof ranges from 0.8 to 1.0mm. The divided manifold tee joint for the germfree ovum aspiration needle can enable the diameter of the needle tube to be smaller and causes less wound to the ovary, and by adopting an electromechanical interlocks, simple, reliable and continuous operation on processes of ovum flushing and suction can be maintained; and the divided manifold tee joint endues the germfree ovum aspiration needle with the functions of a single-lumen needle and a double-lumen needle.

Description

technical field [0001] The invention relates to an auxiliary medical device in the process of reproductive medical treatment, in particular, the invention relates to a novel manifold tee for a sterile single-chamber ovum retrieval needle. The manifold tee for the aseptic ovum retrieval needle can use a needle tube with a smaller diameter, less trauma to the ovary, and an electromechanical linkage device, which can keep the operation of the process of flushing and aspiration of eggs simple, reliable and continuous, and at the same time make the The sterile ovum retrieval needle has the functions of single-lumen needle and double-lumen needle. Background technique [0002] In today's society, the number of infertile patients is increasing day by day due to the acceleration of the pace of work and the increasing pressure of job competition, as well as under the combined influence of various other factors. Clinically, artificially assisted conception has become an effective med...

AI Technical Summary

Problems solved by technology

[0010] The shortcoming of above-mentioned patent technology is: its needle tube diameter is made thicker, and traumatic to ovary is big, thereby has increased patient's misery

, but usually follicles tend to stay and adhere to the ovarian wall, which reduces the success rate of artificial egg retrieval

[0012] In order to avoid the deficiency of the above-mentioned single-chamber egg retrieval needle, some people have designed a double-chamber egg retrieval needle, that is, a manifold tee is provided on the operating handle, and the ovary is washed with a low-pressure flushing fluid after puncture, so that the eggs can be avoided. Retention and adhesion on the ovarian wall to improve the success rate of artificial egg retrieval. The usual double-cavity egg retrieval needle adopts the method of large needle and small needle to achieve the purpose of washing the eggs in the ovary, so that the eggs attached to the ovarian wall can be removed. In the floating state, it is possible to artificially extract eggs, but because of the method of using a large needle with a small needle, the diameter of the large needle cannot be made smaller, which makes the trauma of the patient relatively large when performing medical assistance.

In addition, the outer diameter of the existing double-lumen needle can only be 16G (1.6~1.69mm), and doctors cannot further choose to use it according to the patient's condition during medical treatment.

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