JPS625149Y2 - - Google Patents
Info
- Publication number
- JPS625149Y2 JPS625149Y2 JP12664984U JP12664984U JPS625149Y2 JP S625149 Y2 JPS625149 Y2 JP S625149Y2 JP 12664984 U JP12664984 U JP 12664984U JP 12664984 U JP12664984 U JP 12664984U JP S625149 Y2 JPS625149 Y2 JP S625149Y2
- Authority
- JP
- Japan
- Prior art keywords
- contraceptive device
- shape
- uterus
- spiral
- contraceptive
- 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
Links
- 239000003433 contraceptive agent Substances 0.000 claims description 22
- 230000002254 contraceptive effect Effects 0.000 claims description 22
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 7
- 230000037431 insertion Effects 0.000 description 19
- 238000003780 insertion Methods 0.000 description 19
- 210000004291 uterus Anatomy 0.000 description 15
- 239000004698 Polyethylene Substances 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 230000036760 body temperature Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Landscapes
- Orthopedics, Nursing, And Contraception (AREA)
Description
【考案の詳細な説明】
技術分野
本考案は、子宮内に挿入して使用される避妊具
に関するものである。[Detailed Description of the Invention] Technical Field The present invention relates to a contraceptive device that is used by being inserted into the uterus.
従来技術
従来より用いられている子宮内挿入避妊具とし
ては、例えば第２図ａ〜ｄに示すような形状のも
のがあり、また、素材としては合成樹脂、金属等
で作られているが、子宮内への挿入、除去を考慮
するとその形状が限定され、また、それでも挿入
除去が簡単ではなかつた。さらに、挿入に際して
の変形により子宮内で最も好ましい形状のものと
することが難かしく、また、ポリエチレン製のも
のは柔軟であるが安定度が悪く、知らない間に子
宮内より脱落することもある。Prior Art Intrauterine insertion contraceptive devices that have been used in the past include, for example, those with shapes as shown in Figures 2 a to d, and are made of synthetic resin, metal, etc. Considering the insertion and removal into the uterus, its shape is limited, and even then, insertion and removal are not easy. Furthermore, it is difficult to achieve the most desirable shape within the uterus due to deformation during insertion, and polyethylene products, although flexible, are not stable and may fall out of the uterus without your knowledge. .
目 的
本考案は、避妊具を子宮内温度で形状が安定す
る曲げ易い形状記憶合金を用いることにより、子
宮挿入が簡単で、しかも、子宮内で要求される正
しい形状を保つ避妊具を得ようとするものであ
る。Purpose This invention aims to provide a contraceptive device that is easy to insert into the uterus and maintains the correct shape required within the uterus by using a flexible shape memory alloy that maintains its shape at intrauterine temperature. That is.
構 成 以下図面に従つて本考案を説明する。composition The present invention will be explained below with reference to the drawings.
第１図は本考案を渦巻状子宮内挿入避妊具に適
用した実施例を示す平面図で、子宮内挿入避妊具
１は、内部に約37℃で渦巻状に安定する形状記憶
合金２と、その外周全面を被覆しているポリエチ
レン被覆３とにより形成されている。この形状は
渦巻状に限るものではなく、第２図ａ〜ｄに示さ
れた形状のような従来より使用されている任意の
ものとしてもよく、また、ポリエチレン被覆３を
施こすことなく、形状記憶合金２のみにより子宮
内挿入避妊具１を構成させてもよい。 FIG. 1 is a plan view showing an embodiment in which the present invention is applied to a spirally inserted intrauterine contraceptive device, in which the intrauterine device 1 includes a shape memory alloy 2 that is stable in a spiral shape at about 37° C.; It is formed by a polyethylene coating 3 covering the entire outer periphery. This shape is not limited to a spiral shape, but may be any conventionally used shape such as the shapes shown in FIGS. The intrauterine contraceptive device 1 may be constructed of the memory alloy 2 alone.
なお、第３図は第１図に示す渦巻状の避妊具１
を子宮内に挿入するための器具を示す斜視図で、
ａは挿入器４に渦巻状避妊具１を取付けた状態、
ｂは挿入器４内に渦巻状避妊具１を引き込んだ状
態を示すもので、避妊具１の尾部５を挿入筒６内
を摺動する挿入棒７の先端に糸８により連結し、
挿入棒７を矢印のように下方に引き下げ、ｂ図の
ように避妊具１の頭部９が挿入筒６の先端に止ま
るまで引き込んだ後、挿入筒６先端より子宮内に
挿入し、挿入棒７により避妊具１尾部５を押して
挿入筒６より避妊具１を子宮内に排出させ、糸８
を切断して除去する。この糸８は、避妊具１の尾
部の孔に通されていて、切断後引張ることで除去
できる。なお、符号１０は挿入制限環である。 In addition, FIG. 3 shows the spiral contraceptive device 1 shown in FIG. 1.
in a perspective view showing an instrument for inserting into the uterus,
a shows the spiral contraceptive device 1 attached to the inserter 4;
b shows the state in which the spiral contraceptive device 1 is pulled into the inserter 4, in which the tail portion 5 of the contraceptive device 1 is connected to the tip of the insertion rod 7 that slides inside the insertion tube 6 by a thread 8;
Pull the insertion rod 7 downward as shown by the arrow, pull it in until the head 9 of the contraceptive device 1 stops at the tip of the insertion tube 6 as shown in Figure b, then insert it into the uterus from the tip of the insertion tube 6, and remove the insertion rod. 7, push the tail part 5 of the contraceptive device 1 to eject the contraceptive device 1 into the uterus from the insertion tube 6, and insert the thread 8.
Cut and remove. This thread 8 is passed through a hole in the tail of the contraceptive device 1 and can be removed by pulling after cutting. Note that reference numeral 10 is an insertion restriction ring.
このように、本考案による渦巻状避妊具１は、
挿入筒６内で引き伸ばされた状態となるが、子宮
内に挿入されると、子宮の体温約37℃に温めら
れ、形状記憶合金２が記憶形状である渦巻型の安
定形状になる。 Thus, the spiral contraceptive device 1 according to the present invention has the following features:
It is in a stretched state within the insertion tube 6, but when inserted into the uterus, it is warmed to the uterus's temperature of about 37° C., and the shape memory alloy 2 assumes a stable spiral shape as a memorized shape.
効 果
以上説明したように、本考案による渦巻状避妊
具は、子宮挿入時に変形されても、子宮内で体温
（約37℃）により形状記憶合金が温められ、所定
の渦巻状になるので、従来製品のように、挿入時
の変形歪が残つて変形したままとなることがな
く、正確な形状を保たせることができ、また、挿
入操作も容易となる。さらに、避妊具が金属で構
成されているので、合成樹脂製のものでは不可能
であるＸ線による子宮内での状態を検知すること
ができる。Effects As explained above, even if the spiral contraceptive device of the present invention is deformed when inserted into the uterus, the shape memory alloy is warmed by body temperature (approximately 37 degrees Celsius) in the uterus, and it assumes the desired spiral shape. Unlike conventional products, there is no residual deformation due to deformation during insertion, and the accurate shape can be maintained, and the insertion operation is also facilitated. Furthermore, since the contraceptive device is made of metal, it is possible to detect the state inside the uterus using X-rays, which is impossible with a contraceptive device made of synthetic resin.
第１図は本考案を渦巻状子宮内挿入避妊具に適
用した実施例を示す平面図、第２図ａ〜ｄは従来
よりされている避妊具の形状を例示する平面図、
第３図ａ，ｂは渦巻状避妊具を子宮内に挿入する
ための器具およびその使用法を説明するための斜
視図、である。
１……渦巻状避妊具、２……形状記憶合金、３
……ポリエチレン被覆、４……挿入器、６……挿
入筒、７……挿入棒、８……糸、１０……制限
環。
FIG. 1 is a plan view showing an embodiment in which the present invention is applied to a spiral-shaped intrauterine insertion contraceptive device; FIGS. 2 a to 2 d are plan views illustrating the shape of a conventional contraceptive device;
FIGS. 3a and 3b are perspective views for explaining an instrument for inserting a spiral contraceptive into the uterus and its usage. 1... Spiral contraceptive device, 2... Shape memory alloy, 3
... Polyethylene coating, 4 ... Insertion device, 6 ... Insertion tube, 7 ... Insertion rod, 8 ... Thread, 10 ... Restriction ring.
Claims (1)
金により形成してなる子宮内挿入避妊具。 An intrauterine contraceptive device made of a shape-memory alloy that is stable in the desired shape at approximately 37°C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12664984U JPS6142914U (en) | 1984-08-21 | 1984-08-21 | Intrauterine contraceptive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12664984U JPS6142914U (en) | 1984-08-21 | 1984-08-21 | Intrauterine contraceptive device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6142914U JPS6142914U (en) | 1986-03-20 |
| JPS625149Y2 true JPS625149Y2 (en) | 1987-02-05 |
Family
ID=30685322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12664984U Granted JPS6142914U (en) | 1984-08-21 | 1984-08-21 | Intrauterine contraceptive device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6142914U (en) |
-
1984
- 1984-08-21 JP JP12664984U patent/JPS6142914U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6142914U (en) | 1986-03-20 |
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