Active endouterine contraceptive device made of composite material
An intrauterine device and composite material technology, applied in the field of female contraceptive devices, can solve the problems of complex preparation process of bare copper structure IUD, low effective utilization rate of metal copper, rough surface of metal copper, etc. Relief of various side effects, pain and bleeding
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Embodiment 1
[0025] Weigh 5 g of megestrol and 15 g of medical-grade low-density polyethylene (LDPE), and prepare a gamma-shaped composite material active IUD by premixing, blending, pressure injection or injection molding.
[0026] Examples 2-18 were all prepared by a method similar to that of Example 1, and the components of the prepared composite active IUD are shown in Table 1.
[0027] Reality
[0028] The technical effect of using low-density polyethylene as the base material is obviously better than that of using silicone rubber as the base material, so the preferred base material is low-density polyethylene. Steroidal hormonal contraceptives can use the various progestogens available. Since the melting points of megestrol, norethindrone and levonorgestrel, etc. are higher than the thermal processing temperature of the active IUD of the composite material, the steroid hormone contraceptives preferably used are megestrol, methyl acetylene, etc. nordrone and levonorgestrel...
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