CN100581510C - Flower type intrauterine device prepared by copper spring and silicon rubber - Google Patents
Flower type intrauterine device prepared by copper spring and silicon rubber Download PDFInfo
- Publication number
- CN100581510C CN100581510C CN200710028233A CN200710028233A CN100581510C CN 100581510 C CN100581510 C CN 100581510C CN 200710028233 A CN200710028233 A CN 200710028233A CN 200710028233 A CN200710028233 A CN 200710028233A CN 100581510 C CN100581510 C CN 100581510C
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- intrauterine device
- silicone rubber
- copper spring
- fan
- flower type
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- Expired - Fee Related
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- Orthopedics, Nursing, And Contraception (AREA)
- Medicinal Preparation (AREA)
Abstract
The invention discloses an intrauterine device 1 used for gynecology, which is characterized in that a copper spring 2 and a silicone rubber 3 are used for the injection molding at one time, thus forming a main body of the intrauterine device and the main body is wrapped with a medical silicone rubber film 4 by the secondary injection molding. The intrauterine device 1 produced by the method of the invention has various indexes conforming to the requirements of the guidelines made by the IUD subject steering committee of State Family Planning Commission, which has wide prospect of social benefit and economical benefit.
Description
Invention relates to the field
The present invention relates to a kind of gynecological intrauterine device, particularly a kind of band copper spring silicone rubber intrauterine device.
The background technology of invention
The home and abroad has tens kinds of gynecological's intrauterine contraceptive device in utero, birth control apparatus that come in every shape at present, but total ubiquity abnormal vaginal bleeding, menstruation increases, and menostaxis or the side reaction of waist abdomen pain all have certain discontinuation rate.As far back as the initial stage in the sixties, the intrauterine device that Flos Bombacis Malabarici shape has just been developed in Guangdong is commonly called as Guangdong silicon flower, use plastic material, developed the silicone rubber intrauterine device of caudal peduncle band copper afterwards again, clinical effectiveness is all not ideal, the former pregnancy rate with iud and take-off rate due to symptom all do not reach national standard, and latter's expulsion rate is 3 times of national standard.Guangdong silica gel flower intrauterine device easily causes endometrial impairment because of texture material is hard and crisp, causes malaise symptoms such as menorrhagia pain, and improved thereafter band copper silicone rubber intrauterine device is because of silicone rubber quality softness, and support force causes expulsion rate too high inadequately.
The purpose of invention
The objective of the invention is to cause the too high problem of expulsion rate inadequately for solving copper silicone rubber intrauterine device support force.
The explanation of invention
To achieve these goals, the present invention chooses with clean steel (99.99%) line, harder silicone rubber, and softer medical grade silicon rubber material combines.
At first,, both enlarged the surface area of copper cash, strengthened the flexible support power of copper cash again copper cash coiled bastion of iron spring (copper ion CU+ has the effect of well killing sperm).
Then, is fan-shaped with ready-made copper spring with harder silicone rubber injection mo(u)lding, and segmental major part partly is divided into the little fan-shaped of three hollows, when big fan-shaped when being subjected to certain external force extruding, little fan-shaped can distortion or juxtaposition, and try hard to resile, thereby keep good supporting power, last, the medical soft silicone rubber membrane of injection moulding parcel one deck on copper spring silicone rubber bracing frame, through using the test of normal saline or interior simulated solution dipping, coat the silicone rubber mantle to CU
2+Have good controlled release and slow-releasing.Guarantee that copper ion makes the contraceptive efficacy of sperm inactivation, simultaneously, the silicone rubber mantle has good biocompatibility, and is non-stimulated to body, the stimulation infringement that can avoid naked copper metallic hard silicone rubber that body is produced again.
The present invention will be in conjunction with the accompanying drawings and embodiments further instruction in addition
Accompanying drawing 1 is band copper spring silicone rubber cross sectional representation
Accompanying drawing 1 explanation, band copper spring silicone rubber intrauterine device 1, characteristics according to gynecological's uterine cavity, be injection molded into fan-shaped bracing frame with copper spring 2 and silicone rubber 3 are disposable, the major part part of fan-shaped bracing frame is decomposed into the little fan-shaped 5 of three hollows again, is subjected to certain external force and hits when pressing when fan-shaped, energy complex or little fan-shaped can the intersection, overlapping and try hard to resile, have good support force, injection moulding superscribes one deck medical grade silicon rubber mantle 4 on the copper spring silicone rubber bracing frame of molding then.The silicone rubber mantle has the controlled capability of good slow release to CU2+.Guarantee that copper ion makes the contraceptive efficacy of sperm inactivation, simultaneously, the silicone rubber mantle has good biocompatibility, and is non-stimulated to body, the stimulation infringement that can avoid 3 pairs of bodies of naked copper metallic hard silicone rubber to produce again.
The intrauterine device safety of producing according to said method, efficient, easy, meet the requirement of the guideline that the state plan production IUD of committee special topic steering committee formulates: 1. 1 year gestation＜2% women, 2. expulsion rate＜4% women, 3. take-off rate due to symptom≤4% women, 4. use relevant gross output to use rate≤10% women with IUD, thereby, have the prospect of social benefit and economic benefit widely.
Claims (2)
1, a kind of band copper spring silicone rubber flower type intrauterine device is characterized in that: be injection molded into fan-shaped bracing frame with copper spring (2) and silicone rubber (3) are disposable, the major part of fan-shaped bracing frame partly is divided into little fan-shaped (5) of three hollows.
2, a kind of band copper spring silicone rubber flower type intrauterine device according to claim 1, it is characterized in that: injection moulding is enclosed with one deck medical grade silicon rubber mantle (4) on the fan-shaped bracing frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710028233A CN100581510C (en) | 2007-05-25 | 2007-05-25 | Flower type intrauterine device prepared by copper spring and silicon rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710028233A CN100581510C (en) | 2007-05-25 | 2007-05-25 | Flower type intrauterine device prepared by copper spring and silicon rubber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101310694A CN101310694A (en) | 2008-11-26 |
| CN100581510C true CN100581510C (en) | 2010-01-20 |
Family
ID=40099658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710028233A Expired - Fee Related CN100581510C (en) | 2007-05-25 | 2007-05-25 | Flower type intrauterine device prepared by copper spring and silicon rubber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100581510C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101803969B (en) * | 2010-05-06 | 2011-05-25 | 山东省计划生育科学技术研究所 | Heart-shaped three-dimensional intrauterine device |
-
2007
- 2007-05-25 CN CN200710028233A patent/CN100581510C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101310694A (en) | 2008-11-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100120 Termination date: 20120525 |