CN201119944Y

CN201119944Y - Silicon rubber intrauterine device

Info

Publication number: CN201119944Y
Application number: CNU200720051956XU
Authority: CN
Inventors: 许玉芳
Original assignee: SCIENCE AND TECHNOLOGY INST OF FAMILY PLANNING GUANGDONG PROV
Current assignee: SCIENCE AND TECHNOLOGY INST OF FAMILY PLANNING GUANGDONG PROV
Priority date: 2007-05-25
Filing date: 2007-05-25
Publication date: 2008-09-24
Anticipated expiration: 2017-05-25

Abstract

The utility model relates to an intrauterine device with copper silicon rubber, the improvement is that a copper spring (2) and silicon rubber (3) are injected into a fan shape in one time, the big head portion of the fan shape is divided into three hollow small fan shapes (5), and the frame skin layers of the copper spring (2) and the silicon rubber (3) are coated with silicon rubber soft membranes (4). All indications of the utility model are in accordance with IUD standard which is made by the state family planning commission. The intrauterine device with copper silicon rubber has wide application prospect.

Description

A kind of silicone rubber intrauterine device

Technical field

This utility model relates to a kind of gynecological intrauterine device, particularly a kind of silica gel flower intrauterine device with copper.

Background technology

Existing tens kinds of gynecological that come in every shape in utero save ring both at home and abroad at present, and birth control is cried, but the ubiquity abnormal vaginal bleeding, menstruation increases, and side reactions such as menostaxis or waist abdomen pain all have certain discontinuation rate.

As far back as the initial stage in the sixties, the intrauterine device GS-1 of Flos Bombacis Malabarici shape has just been developed in Guangdong, early stage the first day of the lunar month material that uses is material, developed the silicone rubber intrauterine device GS-2 of the copper that meets accident afterwards again, clinical effectiveness is all not ideal, the former pregnancy with IUD in situ and take-off rate due to symptom do not reach national standard, latter's expulsion rate is 3 times of national standard, the north material of Flos Bombacis Malabarici shape intrauterine device because of texture material is hard and crisp, easily causes endometrial impairment, cause malaise symptoms such as menorrhagia and pain, thereafter improved band copper rubber intrauterine device, because of silicone rubber quality softness, support force causes expulsion rate too high inadequately.

Summary of the invention

The purpose of this utility model is in order to solve the side reaction that existing intrauterine device exists, the problem that take-off rate due to symptom is high, and indexs such as expulsion rate and gestation can meet the guideline that State Family Planning Commission's IUD special topic instructs the member to formulate, the IUD clinical effectiveness must meet the following requirements: 1. 1 year pregnancy rate＜2%, 2. expulsion rate＜4% women, 3. 4. take-off rate due to symptom≤4% women uses relevant gross output to use rate≤10% women with IUD.

For achieving the above object, this utility model is achieved by the following technical programs: according to the characteristics of women's uterine cavity, it is one fan-shaped to be with copper silicone rubber birth control apparatus GS-2 to change into, segmental major part partial segmentation divides the little fan-shaped of three hollows, the fan handle afterbody is a fillet, fan handle partly is provided with aperture, can wear the flexible cord in limit.

Wherein, band copper silicone rubber birth control apparatus has been adopted

Fine copper money coiled

Spring, with the skeleton that the silicone rubber and the copper spring of good supporting force are made intrauterine device, there is one deck medical grade rubber film on the surface of skeleton.

Because the difference in size of organization of human body, product is divided into A, B, C three types.

A type elastic force maximum, support force is the strongest, copper spring from the afterbody of fan handle begin until the edge two little fan-shaped be bracing frame all with the copper spring, the little scallop of having only is divided into the silicone rubber bracing frame.

The Type B spring force is medium, gets two little fan-shaped copper spring bracing frames of using on segmental both sides, and remainder is the silicone rubber bracing frame.

C type elastic force minimum has only intermediary little fan-shaped be copper spring bracing frame, all the other big Gongwei's silicone rubber bracing frames.

Because band copper spring silicone rubber has good support force, reduced expulsion rate significantly, and top layer medical grade silicon rubber mantle, has good biocompatibility, non-stimulated to body, and copper ion had good controlled release and sustained release performance, like this, guaranteed that promptly copper ion makes the contraceptive efficacy of sperm inactivation, the stimulation infringement that can avoid the exposed copper metal silicon rubber that machine is produced again.

Description of drawings

The utility model will be further described below in conjunction with accompanying drawing and embodiment.

Fig. 1 is band copper spring silicone rubber birth control apparatus cross-sectional view (A type);

Fig. 2 is band copper spring silicone rubber birth control apparatus cross-sectional view (Type B);

Fig. 3 is band copper spring silicone rubber birth control apparatus cross-sectional view (C type).

The specific embodiment

Fig. 1 shows the cross-sectional view (A type) of band copper spring silicone rubber birth control apparatus 1 embodiment, copper spring 2 and silicone rubber 3 are once annotated the first day of the lunar month and are shaped to fan-shaped, segmental major part partly is divided into little fan-shaped 5 of three hollows, under the effect of external force, can juxtaposition between little fan-shaped 5, and silicone rubber 3 and copper spring 2 can resile, and have good support force; The afterbody of fan handle has an aperture 6, can wear a flexible cord, and the tail end of fan handle is a fillet 7.Top layer at band copper spring 2 silicone rubber 3 bracing frames, it is silicone rubber mantle 4, has good biocompatibility, non-stimulated to body, and copper ion there are good controlled release and sustained release performance, like this, both guaranteed that copper ion made the contraceptive efficacy of sperm inactivation, the stimulation infringement that can avoid exposed copper metal 2 and 3 pairs of bodies of hard silicone rubber to produce again.

Band copper spring silicone rubber birth control apparatus is divided into A, B, C three types according to the structure size of women's uterine cavity, as shown in Figure 2, is band copper spring silicone rubber birth control apparatus Type B 8; As shown in Figure 3, for being with the C type 9 of copper spring silicone rubber birth control apparatus.According to the clinical experiment of 500 examples, band copper spring silicone rubber birth control apparatus has good contraceptive effect and lower rate of side effects, and every index all reaches the IUD standard that State Family Planning Commission formulates, and has broad application prospects.

Claims

1. a silicone rubber intrauterine device is characterized in that with copper spring (2) and the disposable main body that is injection molded into intrauterine device of silicone rubber (3).

2. a kind of silicone rubber intrauterine device according to claim 1 is characterized in that the intrauterine device main body is enclosed with one deck medical grade silicon rubber mantle (4) through quadric injection mould.