Levonorgestrel intrauterine sustained-release system with enhanced stability performance and production equipment of levonorgestrel intrauterine sustained-release system

Abstract

The invention discloses a stability-enhanced levonorgestrel intrauterine sustained release system and production equipment thereof, the stability-enhanced levonorgestrel intrauterine sustained release system comprises a levonorgestrel rubber rod, the stability-enhanced levonorgestrel intrauterine sustained release system is characterized in that the lower end of the levonorgestrel rubber rod is provided with a stabilizing structure, and the upper end of the levonorgestrel rubber rod is provided with a supporting structure; the device has the advantages that the stable structure with the four arc-shaped strips is arranged below the levonorgestrel rubber rod and close to the uterine cavity, the four arc-shaped strips are in the shape of a lantern framework, meet different cervical opening sizes and are prevented from falling off, meanwhile, the four arc-shaped strips are arranged on the four arc-shaped strips in an externally-expanded mode and located in the uterine cavity, the system is stably placed in the uterine cavity, and therefore the stability of the system is improved. The levonorgestrel rubber rod is arranged on the intrauterine device, system position deviation is avoided, the birth control effect is guaranteed, the supporting structure is arranged above the levonorgestrel rubber rod, the uterus is in flexible contact with the system during contraction, and the safety of the uterus during contraction is improved.

Description

technical field [0001] The invention relates to the technical field of birth control devices, in particular to a levonorgestrel intrauterine sustained-release system with enhanced stability and production equipment thereof. Background technique [0002] The levonorgestrel intrauterine sustained-release system, that is, Mirena, has the advantage that in addition to the contraceptive effect, the slow release of levonorgestrel in the uterine cavity is equivalent to local administration in the uterine cavity, and it can be treated clinically. Endometriosis, adenomyosis, dysmenorrhea, idiopathic menorrhagia, and also has the effect of transforming the endometrium to treat endometrial lesions. [0003] However, during the use of the existing IUD, since the position below the levonorgestrel intrauterine sustained-release system and near the cervix is ​​a smooth rod-shaped structure, the IUD will fall off from the uterus, and the stability is relatively high. Poor, and the position...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is in order to solve the above-mentioned problem, has designed the levonorgestrel intrauterine slow-release system and its production equipment of strengthening stable performance, has solved existing birth control device in use process, due to levonorgestrel uterine The position below the internal sustained-release system and close to the cervix is ​​a smooth rod-shaped structure, which may cause the IUD to fall out of the uterus, and the stability is poor, and the levonorgestrel intrauterine sustained-release system is easy to contact with the uterus If the position is a non-deformable structure, friction will occur between the uterus and the IUD during uterine contraction, which will cause painful bleeding; In the molding process of the progesterone intrauterine sustained-release system, it is not necessary for the operator to hold an air gun to assist the demoulding. After the demoulding is completed, the operator needs to clean up the mold residue, which is a problem of heavy workload and low work efficiency.

Images