CN2721052Y - Memory alloy copper bearing intrauterine device - Google Patents
Memory alloy copper bearing intrauterine device Download PDFInfo
- Publication number
- CN2721052Y CN2721052Y CN 200420066722 CN200420066722U CN2721052Y CN 2721052 Y CN2721052 Y CN 2721052Y CN 200420066722 CN200420066722 CN 200420066722 CN 200420066722 U CN200420066722 U CN 200420066722U CN 2721052 Y CN2721052 Y CN 2721052Y
- Authority
- CN
- China
- Prior art keywords
- bow
- shape
- copper
- memorial alloy
- degree
- 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.)
- Expired - Lifetime
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 49
- 239000010949 copper Substances 0.000 title claims abstract description 49
- 229910001285 shape-memory alloy Inorganic materials 0.000 title claims abstract description 15
- 230000002254 contraceptive effect Effects 0.000 claims description 31
- 239000003433 contraceptive agent Substances 0.000 claims description 20
- 229910045601 alloy Inorganic materials 0.000 claims description 19
- 239000000956 alloy Substances 0.000 claims description 19
- 210000004291 uterus Anatomy 0.000 claims description 18
- 239000008187 granular material Substances 0.000 abstract 9
- 238000007086 side reaction Methods 0.000 description 16
- 238000002474 experimental method Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 208000036029 Uterine contractions during pregnancy Diseases 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 239000003984 copper intrauterine device Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
Landscapes
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The utility model discloses a memory alloy copper bearing intrauterine device which is composed of an arched bracket made of shape memory alloy thread and a cupreous granule shape plug arranged on the two arm sides of the bracket. The memory alloy copper bearing intrauterine device is characterized in that the diameter of the shape memory alloy thread of the bracket is 0.45 to 0.55 mm; the diameter of the cupreous granule shape plug is preferred to be 2.6 to 2.8 mm, and the length of the cupreous granule shape plug is 6.5 to 7.6 mm; the end part of the cupreous granule shape plug is in hemispherical shape; the middle of the cupreous granule shape plug is in cylindrical shape; the connecting point of the cupreous granule shape plug and the bracket is in hemispherical shape. The intrauterine device of the utility model solves the problems of excessive rigidity and big side effect of the existing intrauterine device and reduces the pain of users; in addition, the utility model selects the copper granule of appropriate size and shape, which solves the problems of difficulty in taking and putting the intrauterine device and big side effect in prior art caused by the oversize copper granule, and overcomes the problem of not obtaining the contraception effect caused by the undersize copper granule in prior art.
Description
Technical field
This utility model belongs to medical apparatus, is specifically related to a kind of women assembly of intra-uterine contraceptive apparatus, memorial alloy cupric intrauterine contraceptive device in utero.
Background technology
At present, at home and abroad in the birth control field, intrauterine device is a kind of very effective contraceptive device.Present stage, birth control apparatus commonly used had intrauterine device, V-type ring, Tcu ring ... etc. of a great variety, but all there is easily problem such as come off, side reaction is serious.
China's utility model patent 94200780.8 disclosed marmem cupric birth control bows, this birth control bow is made up of body and copper granular plug two parts, body divides three parts, top is arcuate openings shape bow arm, the middle part is the bow body, the lower end supports choma for fetching and delivering, and the shape of bow body is the crooked folding of the shield edge shape bar that symmetry is outwards protruded, and only in the opening shape bow arm termination of body copper granular plug is set.This utility model birth control bow has carried out many improvement technically, its support form is a shield edge shape, reduced the elastic force of birth control apparatus, and simplified the operation technique program, though it has removed the copper tube that puts on the bow arm, reduced the cupric area of birth control apparatus and the own wt of birth control apparatus, reduced the generation of side reaction, but because the diameter of its shot copper is bigger, it is very difficult to pick and place ring, and side reaction is big.And the main body of this birth control bow is to be made by the marmem of 0.6-0.8mm, and hardness, elastic force are big, and flexible poor, the side reaction that brings thus is big.
The big problem of side reaction at above-mentioned birth control bow, China's utility model patent 02281411.6 memorial alloy copper intrauterine devices improves again this, the diameter that bends the memorial alloy of body is reduced to 0.57mm, but still do not reach best elastic force, side reaction does not still drop to minimum point, brought misery to the patient, also be not easy to the doctor and execute art.And it has changed the diameter of shot copper, to reduce to pick and place the difficulty of ring, improve the side reaction phenomenon, but,, make to pick and place to encircle to be more prone to though it has reduced the sticky feeling of user through clinical experiment, but because the minimizing of the diameter of shot copper, increased the probability of becoming pregnant, reduced contraceptive effect, and the surface area of clinical trial certificate shot copper can not be less than 110mm
2, otherwise can't reach contraceptive effect.
Summary of the invention
For the big defective of elastic force that overcomes existing intrauterine device, primary and foremost purpose of the present utility model is to provide a kind of memorial alloy cupric intrauterine contraceptive device in utero that reduces side reaction, reduces the uncomfortable sensation of user.
In order to overcome the defective of prior art, another purpose of the present utility model provides a kind of rational shot copper shape and size, guarantees contraceptive effect, also will be reduced to minimum memorial alloy cupric intrauterine contraceptive device in utero owing to the shot copper size increases the side reaction that brings.
For achieving the above object, the technical solution of the utility model is: a kind of memorial alloy cupric intrauterine contraceptive device in utero, be made up of shape-memory alloy wire arciform support of making and the copper granular plug that is located at support two arm ends, it is characterized by: the diameter of the shape-memory alloy wire of described support is 0.45-0.55mm.
In order to improve contraceptive effect, reduce the probability of becoming pregnant, the diameter of described copper granular plug is 2.6-2.8mm, length is 7.6mm-6.5mm, its end is hemispherical, the middle part is cylindric, with the support junction be hemispherical.
Wherein, described arciform support comprise a U-shaped support choma, two expand outwardly along the split ring end stretch out and symmetrically arranged bow body and two along the bow body expand outwardly and symmetrically arranged bow arms, described copper granular plug is located at the end of bow arm; Described bow body is divided into two parts, is the curved crease line shape that outwards protrudes between first and the second portion.
Best, the described radius that supports choma is 1.6-1.7mm.
Best, the angle α between the described two bow arms is the 117-120 degree; Angle between described bow body first and the bow arm is 130 degree; Angle between described bow body first and the second portion is 170 degree; Bow body second portion is 150 degree with the straight line portion angle that supports choma.
Best, the distance between the two copper granular plug end mid points is respectively 29-33mm mm.
Best, two copper granular plug end mid points are 24-26mm to fetching and delivering the distance that supports choma.
Owing to adopt technique scheme, reduce the diameter of the shape-memory alloy wire of support and establish, help improving the flexibility of support, reduce the elastic force of marmem, reduce side reaction, reduce the user uncomfortable feeling.Further, improve the surface area and the shape of copper granular plug, make it have rational surface area, too small to overcome surface area, do not reach contraceptive effect, but also will avoid the excessive increase side reaction of surface area of shot copper, and shot copper and support junction is hemispherical for changing into, make connection everywhere more level and smooth, to reduce uncomfortable feeling.
This utility model is further, reduces to support the radius of choma, can make to pick and place ring easily, reduces picking and placeing misery and the discomfort that ring brings to user.
To sum up, of the present utility model more reasonable on planform, its form design meets the movable mechanics principle in human body uterus, the flexibility of support increases, and rational shot copper diameter, shape and surface area, promptly can improve contraceptive effect, simultaneously can reduce side reaction, intrauterine device itself has the function that repel in anti-uterus, intrauterine device will be relaxed with contracting of uterus actuate, and makes intrauterine device be difficult for being shifted, coming off downwards.The intrauterine device support adopts shape-memory alloy wire to make, corrosion-resistant, resisting fatigue, have the favorable tissue compatibility and under the human body temperature state, can keep given shape, intrauterine device can not come off from intrauterine, keep contraceptive effect.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Referring to accompanying drawing 1, showed memorial alloy cupric intrauterine contraceptive device in utero of the present utility model among the figure, be made up of arciform support 1 and the copper granular plug 2 that is located at support two arm ends, described support 1 is made by shape-memory alloy wire, and the diameter of the shape-memory alloy wire of described support 1 is 0.50mm.
The diameter of described copper granular plug 2 is 2.7mm, and length is 7.0mm, and its end 21 is hemispherical, and middle part 22 is cylindric, and the afterbody 23 that is connected with support is for hemispherical.
Wherein, described support 1 is arciform, comprise a U-shaped support choma 11, two expand outwardly along split ring 11 ends stretch out and symmetrically arranged bow body 12 and two along bow body 12 expand outwardly and symmetrically arranged bow arms 13; Described copper granular plug 2 is located at the end of bow arm 13.Described bow body 12 is divided into two parts, is the curved crease line shape that outwards protrudes between first 121 and the second portion 122.
Angle α between the described two bow arms 13 is 118 degree; Angle β between described bow body first 121 and the bow arm 13 is 130 degree; Angle theta between described bow body first 121 and second one 122 minutes is 170 degree; Bow body second portion 122 is 150 degree with the straight line portion 111 angle γ that support choma 11.
The described arc radius that supports choma 11 is 1.6mm, and (also claim: the anaerobic shot copper) distance between the mid point of end is respectively 27mm to two copper granular plugs 2; Two shot copper end mid points to the distance that supports the choma middle part is 26mm.
The diameter wiry of the support 1 described in the present embodiment is 0.53mm, select the less tinsel of diameter to help reducing side reaction, because it adopts thinner diameter, make that the support of intrauterine device can free shrink and extension along with uterine contraction, it is flexible better, make intrauterine device be difficult for moving down and come off, this support adopts memory alloy wire to make, and corrosion-resistant, resisting fatigue, has the favorable tissue compatibility; The diameter of copper granular plug 2 is 2.6mm, and length is 7.6mm, and the diameter of its shot copper is less, thereby can reduce side reaction, and it has enough copper surface areas, can guarantee contraceptive effect, and through clinical trial certificate, its contraceptive effect reaches can 98%.Further, its arc radius that supports choma 11 is 1.6mm, and it reduces with respect to size of the prior art, and it is easier to make when putting ring and getting ring, is easy to execute art, easy to operate.
Embodiment two, and be with a last embodiment difference: the diameter wiry of described support is 0.50mm; The diameter of described copper granular plug is 2.7mm, and length is 7.3mm; Angle α between the described two bow arms 13 is 120 degree.It has reduced diameter wiry, and the diameter of shot copper, all can reduce side reaction, and in order to guarantee contraceptive effect, the length of its shot copper is 7.6mm, and the surface area of shot copper is not subtracted, and the clinical experiment result shows that its contraceptive prevalence rate is 98%.
Embodiment three, and be with embodiment one difference: the diameter wiry of described support is 0.48mm; The diameter of described copper granular plug is 2.8mm, and length is 7.0mm; Its described radius that supports choma is 1.7mm; Angle α between the described two bow arms 13 is 119 degree; The slightly larger in diameter with respect to embodiment one of the memory alloy wire of its support, but it is still very little with respect to its diameter of prior art, help reducing side reaction, also choose the bigger sizes of the tip with the diameter of corresponding its shot copper of stent diameter, the surface area of its shot copper guarantees at the contraceptive effect required value, show that through clinical experiment its contraceptive prevalence rate can reach 97.5%.
The intrauterine device of utility model can be made the various models that vary in size, and at this moment, need need the distance between the two different copper granular plug end mid points; And two copper granular plug end mid point to fetching and delivering the distance that supports choma.This utility model memorial alloy cupric intrauterine device needs to implant uterine cavity by a conveying lever (prior art) by conveying lever when delivering to uterine cavity, and is simple and convenient.
Claims (10)
1. a memorial alloy cupric intrauterine contraceptive device in utero is made up of shape-memory alloy wire arciform support of making and the copper granular plug that is located at support two arm ends, and it is characterized by: the diameter of the shape-memory alloy wire of described support is 0.45-0.55mm.
2. memorial alloy cupric intrauterine contraceptive device in utero according to claim 1, it is characterized in that: the diameter of described copper granular plug is 2.6-2.8mm, and length is 7.6mm-6.5mm, and its end is hemispherical, the middle part is cylindric, and the afterbody that is connected with support is hemispherical.
3. memorial alloy cupric intrauterine contraceptive device in utero according to claim 1 and 2, it is characterized in that: described arciform support comprise a U-shaped support choma, two expand outwardly along the split ring end stretch out and symmetrically arranged bow body and two along the bow body expand outwardly and symmetrically arranged bow arms, described copper granular plug is located at the end of bow arm; Described bow body is divided into two parts, is the curved crease line shape that outwards protrudes between first and the second portion.
4. memorial alloy cupric intrauterine contraceptive device in utero according to claim 3 is characterized in that: the described radius that supports choma is 1.6-1.7mm.
5. memorial alloy cupric intrauterine contraceptive device in utero according to claim 3 is characterized in that: the angle between the described two bow arms is the 117-120 degree; Angle between described bow body first and the bow arm is 130 degree; Angle between described bow body first and the second portion is 170 degree; Bow body second portion is 150 degree with the straight line portion angle that supports choma.
6. memorial alloy cupric intrauterine contraceptive device in utero according to claim 4 is characterized in that: the angle between the described two bow arms is the 117-120 degree; Angle between described bow body first and the bow arm is 130 degree; Angle between described bow body first and the second portion is 170 degree; Bow body second portion is 150 degree with the straight line portion angle that supports choma.
7. memorial alloy cupric intrauterine contraceptive device in utero according to claim 4 is characterized in that: the distance between the two copper granular plug end mid points is respectively 29-33mm.
8. memorial alloy cupric intrauterine contraceptive device in utero according to claim 5 is characterized in that: the distance between the two copper granular plug end mid points is respectively 29-33mm.
9. memorial alloy cupric intrauterine contraceptive device in utero according to claim 4 is characterized in that: two copper granular plug end mid points are 24-26mm to fetching and delivering the distance that supports choma.
10. memorial alloy cupric intrauterine contraceptive device in utero according to claim 5 is characterized in that: two copper granular plug end mid points are 24-26mm to fetching and delivering the distance that supports choma.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420066722 CN2721052Y (en) | 2004-06-08 | 2004-06-08 | Memory alloy copper bearing intrauterine device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420066722 CN2721052Y (en) | 2004-06-08 | 2004-06-08 | Memory alloy copper bearing intrauterine device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2721052Y true CN2721052Y (en) | 2005-08-31 |
Family
ID=35011430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420066722 Expired - Lifetime CN2721052Y (en) | 2004-06-08 | 2004-06-08 | Memory alloy copper bearing intrauterine device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2721052Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007051417A1 (en) * | 2005-11-03 | 2007-05-10 | Fengyang Shi | Method for manufacturing an intra-uterine contraceptive device of a shape memory alloy |
-
2004
- 2004-06-08 CN CN 200420066722 patent/CN2721052Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007051417A1 (en) * | 2005-11-03 | 2007-05-10 | Fengyang Shi | Method for manufacturing an intra-uterine contraceptive device of a shape memory alloy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING SHENG YIN XIN LI MEDICAL TECHNOLOGY CO., L Free format text: FORMER OWNER: ZHAO HONG Effective date: 20090918 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090918 Address after: C1, East Zone, Shijingshan Park, Zhongguancun science and Technology Park, Beijing, 100041 Patentee after: Beijing Shengyin Xinli Medical Technology Co., Ltd. Address before: Beijing City, Haidian District Yongfeng Road No. 99 yihushanzhuang Yuhua garden 25, zip code: 100094 Patentee before: Zhao Hong |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHAO HONG Free format text: FORMER OWNER: BEIJING SHENGYIN XINLI MEDICAL TECHNOLOGY CO., LTD. Effective date: 20101013 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100041 C1, EAST SECTION OF ZHONGGUANCUN SCIENCE PARK SHIJINGSHAN ZONE, BEIJING TO: 100094 NO.25, YUHUAYUAN, YIHE SHANZHUANG, NO.99, YONGFENG MIDDLE ROAD, HAIDIAN DISTRICT, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101013 Address after: 100094 Beijing City, Haidian District Yongfeng Road No. 99 yihushanzhuang Yuhua garden 25 Patentee after: Zhao Hong Address before: 100041 C1, East Zone, Shijingshan Park, Zhongguancun science and Technology Park, Beijing Patentee before: Beijing Shengyin Xinli Medical Technology Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: BEIJING SHENGYIN XINLI MEDICAL TECHNOLOGY CO., LTD Free format text: FORMER OWNER: ZHAO HONG Effective date: 20110509 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100094 NO. 25, YUHUAYUAN, YIHE VILLA, NO. 99, YONGFENG MIDDLE ROAD, HAIDIANDISTRICT, BEIJING TO: 100041 C1, EAST AREA, SHIJINGSHAN PARK, ZHONGGUANCUN SCIENCE AND TECHNOLOGY PARK, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110509 Address after: 100041, Beijing Zhongguancun science and Technology Park, Shijingshan Park, Eastern C1 Patentee after: Beijing Shengyin Xinli Medical Technology Co., Ltd. Address before: 100094 Beijing City, Haidian District Yongfeng Road No. 99 yihushanzhuang Yuhua garden 25 Patentee before: Zhao Hong |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140608 Granted publication date: 20050831 |