CN2090248U - Uterine cavity-shaped intrauterine device with copper ion slow release function - Google Patents
Uterine cavity-shaped intrauterine device with copper ion slow release function Download PDFInfo
- Publication number
- CN2090248U CN2090248U CN 91214127 CN91214127U CN2090248U CN 2090248 U CN2090248 U CN 2090248U CN 91214127 CN91214127 CN 91214127 CN 91214127 U CN91214127 U CN 91214127U CN 2090248 U CN2090248 U CN 2090248U
- Authority
- CN
- China
- Prior art keywords
- copper
- uterine cavity
- intrauterine device
- copper ion
- stainless steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 title abstract description 9
- 229910001431 copper ion Inorganic materials 0.000 title abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052802 copper Inorganic materials 0.000 claims abstract description 14
- 239000010949 copper Substances 0.000 claims abstract description 14
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 10
- 239000010935 stainless steel Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000005253 cladding Methods 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 230000002254 contraceptive effect Effects 0.000 abstract description 7
- 239000003433 contraceptive agent Substances 0.000 abstract description 5
- 229920002379 silicone rubber Polymers 0.000 abstract description 5
- 239000004945 silicone rubber Substances 0.000 abstract description 4
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 abstract description 3
- 239000005751 Copper oxide Substances 0.000 abstract description 3
- 208000032843 Hemorrhage Diseases 0.000 abstract description 3
- 229910000431 copper oxide Inorganic materials 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 2
- 230000000740 bleeding effect Effects 0.000 abstract 1
- 208000007106 menorrhagia Diseases 0.000 abstract 1
- 239000007769 metal material Substances 0.000 abstract 1
- 230000008092 positive effect Effects 0.000 abstract 1
- 210000004291 uterus Anatomy 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000003984 copper intrauterine device Substances 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 1
- 230000005906 menstruation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000035935 pregnancy Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The prior copper-containing uterine cavity-shaped contraceptive device used by women is easy to cause side effects such as menorrhagia, drop bleeding and the like because the metal material is directly contacted with the uterine cavity; and in the long-term use of the contraceptive device, a copper oxide layer is generated on the surface of the copper material, so that the release amount of copper ions is obviously reduced, and the contraceptive effect is influenced. The utility model is composed of a uterus-shaped device made of stainless steel and containing copper and a silicone rubber layer coated on the uterus-shaped device, and has the positive effects of keeping constant release of copper ions for a long time and having small side effect.
Description
This utility model belongs to the women and uses the contraceptive field.
The cupric uterine cavity shaped rustless steel birth control apparatus of women's use at present, as Chinese patent CN86208696 " copper facing palace shape device ", Chinese patent CN87208919 " band copper palace shape device ", and the generally acknowledged good TCu220C birth control apparatus of effect both at home and abroad of World Health Organization's popularization, have the advantage that expulsion rate is low, pregnancy rate is low.Yet, because the metal of birth control apparatus partly has the incompatibility with human body, when directly contacting, can cause some side effect with uterine cavity, many as menstruation, the long-term drop of intrauterine is hemorrhage etc.; And in the life-time service process, the copper material surface can form copper oxide, hinder the release of copper ion, influence contraceptive effect, can not life-time service, be example with the TCu220C birth control apparatus, discharge 50 μ g every day in first month after placement, promptly be reduced to after 1 month and discharge 10-15 μ g every day, littler later on.
The purpose of this utility model provides and a kind ofly in use can keep the long time constant copper ion releasing, and the little birth control apparatus of side effect.
The purpose of this utility model is achieved in that
The palace body (1) of the coil spring shape that birth control apparatus is made by the cupric stainless steel silk and the silastic-layer (2) that clads on it are formed.Accompanying drawing 1 is its structure chart.
Among the figure: (1) is the palace body;
(2) be the silicone rubber cladding;
(3) be the joint of stainless steel silk coil spring.
Palace body (1) is made by stainless steel silk, stainless steel silk twist up spring-like, end to end, tail end should screw in and be no less than 1 circle in the head end, the cross section of the flat shape of palace body (1) and size and women's cavity of uterus inner chamber is roughly suitable, the copper of stainless steel silk coil spring surface plating thin layer also can be placed copper material in stainless steel silk coil spring volume.Palace body (1) outer surface cladding thin-layer silicon rubber layer (2), silastic-layer has many micropores in (2), and after inserting birth control apparatus in the cavity of uterus, the copper material in the palace body (1) is promptly constantly emitted copper ion, emit by the micropore in the silastic-layer (2), play contraceptive efficacy.Because the sealing function of silastic-layer (2), the copper material in the palace body (1) does not directly contact with air, is difficult for generating copper oxide, can not hinder passing through of copper ion, and copper ion can keep long time constant to discharge, and therefore, birth control apparatus can life-time service.Silicone rubber has the compatibility with human body, so side effect is little.
Below in conjunction with embodiment this utility model is further described.
Accompanying drawing 2 is the profile machine dimensional drawing of birth control apparatus.
The palace body is by 1Cr
18Ni
9The Ti stainless steel silk is made, and steel wire diameter is 0.3mm.The overall diameter of coil spring is 20mm, plates the copper of purity 99.4% outward, and every copper facing weight is 120-165mg.The palace body has three kinds of different sizes, and the shape in its flat shape and cavity of uterus cross section is suitable substantially, and its size is as follows:
Large size: length A is 24 ± 0.65mm, and width B is 22 ± 0.42mm
Medium size: length A is 22 ± 0.65mm, and width B is 20 ± 0.42mm
Small size: length A is 20 ± 0.42mm, and width B is 18 ± 0.42mm
At outer surface cladding one deck methyl polyethylene base silastic-layer of palace body, its thickness is 0.05-0.4mm, and silastic-layer should seal the palace body fully.
This utility model be owing to can keep the constant of copper ion to discharge for a long time, can life-time service, to place once, and effect duration can reach more than 10 years.And because the metal of birth control apparatus does not partly directly contact with human body, the silicone rubber that the outside cladded has the compatibility with human body, and caused side effect is little, places after 2-3 days, and menolipsis too much reaches the hemorrhage generation of uterus drop.Use reliably,, follow up a case by regular visits to more than half a year, none example failure through the clinical trial of many cases.Its effect is better than existing various cupric birth control apparatus, for people take like a shot.
Claims (3)
1, a kind of cupric uterine cavity shaped intrauterine device is characterized in that being made up of the silastic-layer (2) that bends to the uterine cavity cavity shape and contain the palace body (1) of copper material and encase palace body outer surface that the stainless steel silk coil spring is made.
2, cupric uterine cavity shaped intrauterine device as claimed in claim 1 is characterized in that the copper coating at the stainless steel silk coil spring.
3, cupric uterine cavity shaped intrauterine device as claimed in claim 1 is characterized in that at the outside of palace body (1) cladding thin layer methyl polyethylene base silastic-layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91214127 CN2090248U (en) | 1991-02-01 | 1991-02-01 | Uterine cavity-shaped intrauterine device with copper ion slow release function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91214127 CN2090248U (en) | 1991-02-01 | 1991-02-01 | Uterine cavity-shaped intrauterine device with copper ion slow release function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2090248U true CN2090248U (en) | 1991-12-11 |
Family
ID=4922368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91214127 Withdrawn CN2090248U (en) | 1991-02-01 | 1991-02-01 | Uterine cavity-shaped intrauterine device with copper ion slow release function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2090248U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104998344A (en) * | 2015-07-27 | 2015-10-28 | 肖雁冰 | Memory alloy silicone rubber intrauterine sustained-release system |
| CN105982779A (en) * | 2015-02-10 | 2016-10-05 | 刘雯倩 | Contraceptive ring |
-
1991
- 1991-02-01 CN CN 91214127 patent/CN2090248U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105982779A (en) * | 2015-02-10 | 2016-10-05 | 刘雯倩 | Contraceptive ring |
| CN104998344A (en) * | 2015-07-27 | 2015-10-28 | 肖雁冰 | Memory alloy silicone rubber intrauterine sustained-release system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |