Intrauterine device of composite material

A technology of intrauterine contraceptives and composite materials, applied in the field of intrauterine contraceptives, can solve the problems of uncontrollable copper ion release rate, rough metal copper surface, low effective utilization rate, etc., achieve excellent contraceptive effect and overcome surface roughness , the effect of improving the effective utilization rate

Inactive Publication Date: 2007-03-21
湖北大禹医疗器械有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Bare copper structure IUD, due to structural defects, there are still problems such as uncontrollable copper ion release rate, direct contact between metal copper and endometrium and low effective utilization rate, metal copper surface will become rougher and deposit a large amount of deposits Drugs and other problems, and thus cause clinical side effects such as pain, bleeding and menstrual disorders

Method used

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  • Intrauterine device of composite material
  • Intrauterine device of composite material
  • Intrauterine device of composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The outer arc radius R of the arc arms 11 and 11' is prepared by using the original powder mixture of the low-density polyethylene-based composite material masterbatch with a copper particle content of 50.0wt.%. 1 =7.0mm, inner arc radius R 2 =5.5mm, the center O of the cross section of the arc arm 11 2 The arc radius of the arc is 0.5×(R 1 +R 2 )=6.25mm, the radius r of the sphere 12 at the outer end of the arc arm 11 1 =1.0mm, center O of sphere 12 3 The center O of the arc with the arc arm 1 The link L between 1 and the center O of the arc 1 Where the horizontal line L 2 The included angle α=135 degrees, the radius r of the hemisphere 15 at the bottom end of the trailing arm 13 2 =1.0mm, the total length L of the longitudinal arm 13 and the hemisphere 15 3 =19mm, diameter 2r of the tail wire hole 14 3 = 0.10mm composite intrauterine device. That is, the diameter of the arc arm of the composite IUD (R 1 -R 2 )=1.5mm, trailing arm diameter 2r 2 =2.0mm, to...

Embodiment 2-19

[0034] All were prepared by a method similar to that of Example 1, wherein the composition of the prepared composite IUD was shown in Table 1, and the size parameters of the prepared composite IUD were shown in Table 2.

[0035] Reality

[0036]

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Abstract

The intrauterine device (IUD) of composite material consists of one vertical arm and two arc arms distributed symmetrically about the top of the vertical arm, and has also two spheres in the external ends of two arc arms and one semi-sphere in the bottom of the vertical arm and with anal filament hole in the center. It has the shape between T and Gamma, accords with the morphologic and dynamic requirements of women's uterine. Compared with available IUD, the present invention has simple setting operation without need of dilatation, no damage on endocervix and less pain, bleeding and other side effects.

Description

technical field [0001] The invention relates to an intrauterine contraceptive device, in particular to a composite material intrauterine contraceptive device. technical background [0002] The intrauterine device (IUD) has become a kind of contraceptive device widely used at home and abroad because of its long-term, safe, effective, simple and reversible advantages. According to the report of the World Health Organization (WHO), there are about 156 million women of childbearing age in the world who use IUD as a contraceptive measure, of which my country accounts for about 75 million, accounting for more than 40% of women of childbearing age. Although the existing IUDs have excellent contraceptive effects, there are still many clinical problems such as pain, bleeding and menstrual disorders, and excessive or irregular bleeding has become the most important reason affecting the wider application of IUDs. Therefore, how to eliminate or alleviate various side effects caused by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F6/14A61K45/00A61K31/56A61P15/18
Inventor 夏先平谢长生朱长虹蔡水洲
Owner 湖北大禹医疗器械有限责任公司
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