JPH0420307U - - Google Patents
Info
- Publication number
- JPH0420307U JPH0420307U JP6106790U JP6106790U JPH0420307U JP H0420307 U JPH0420307 U JP H0420307U JP 6106790 U JP6106790 U JP 6106790U JP 6106790 U JP6106790 U JP 6106790U JP H0420307 U JPH0420307 U JP H0420307U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- shape
- shape memory
- primary coil
- memory resin
- 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.)
- Granted
Links
- 239000011347 resin Substances 0.000 claims description 10
- 229920005989 resin Polymers 0.000 claims description 10
- 239000008280 blood Substances 0.000 claims description 8
- 210000004369 blood Anatomy 0.000 claims description 8
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims 4
- 230000036760 body temperature Effects 0.000 claims 2
- 230000007423 decrease Effects 0.000 claims 1
- 230000009477 glass transition Effects 0.000 claims 1
- 230000009466 transformation Effects 0.000 claims 1
- 210000004204 blood vessel Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000002792 vascular Effects 0.000 description 1
Description
第１図は本考案の血路閉塞具の斜視図、第２図
ａはコイル形状の形状記憶合金線材の内部に形状
記憶樹脂の線材を挿入した状態を示す中間部の部
分断面図、第２図ｂはコイル形状の形状記憶合金
線材の内部に形状記憶樹脂の線材を挿入した状態
を示す先端部の部分断面図、第３図は形状記憶合
金と形状記憶樹脂の温度と荷重との関係を示す図
、第４図は形状記憶合金と形状記憶樹脂を所定の
温度雰囲気下に配置した場合における温度上昇を
経時的に示す図、第５図は形状記憶合金と形状記
憶樹脂を組み合わせた場合の発生荷重を経時的に
示す図、第６図は本考案の血路閉塞具を用いて血
管内を閉塞する方法を示す図、第７図は従来の血
路閉塞具をカテーテル内に挿入したときの状態を
示す図、第８図は従来の血路閉塞具を用いて血管
内を閉塞する方法を示す図、第９図は本考案の血
路閉塞具の他の実施例を示す部分断面図、第１０
図は同血路閉塞具の正面図である。
図中、１１は血路閉塞具、１２は形状記憶合金
からなる線材、１２ａは一次コイル、１２ｂは二
次コイル、１３は形状記憶樹脂の線材、１３ａは
端部、２１はカテーテル、２５はプツシヤー、３
１は血管である。
Fig. 1 is a perspective view of the blood duct obturator of the present invention, Fig. 2a is a partial cross-sectional view of the intermediate portion showing a shape memory resin wire inserted into a coil-shaped shape memory alloy wire; b is a partial sectional view of the tip of the shape memory resin wire inserted into the coil-shaped shape memory alloy wire, and Figure 3 shows the relationship between the temperature and load of the shape memory alloy and shape memory resin. Figure 4 shows the temperature rise over time when a shape memory alloy and shape memory resin are placed in a predetermined temperature atmosphere, and Figure 5 shows the temperature rise when a shape memory alloy and shape memory resin are combined. Figure 6 is a diagram showing the load over time, Figure 6 is a diagram showing a method for occluding the inside of a blood vessel using the blood vessel occlusion device of the present invention, and Figure 7 is a diagram showing the state when a conventional blood vessel occlusion device is inserted into a catheter. 8 is a diagram showing a method of occluding the inside of a blood vessel using a conventional blood duct occluding device. FIG. 9 is a partial sectional view showing another embodiment of the vascular occluding device of the present invention, and FIG.
The figure is a front view of the same blood duct obturator. In the figure, 11 is a blood path obturator, 12 is a wire made of a shape memory alloy, 12a is a primary coil, 12b is a secondary coil, 13 is a shape memory resin wire, 13a is an end, 21 is a catheter, 25 is a pusher, 3
1 is a blood vessel.
Claims (1)
イルをなし、この一次コイルが更にコイル状に成
形されて二次コイルをなし、この二次コイルはコ
イル径が徐々に小さくなるようなテーパー形状を
なしている金属コイルと、前記一次コイルの内部
に挿入された、体温より低い温度のガラス転移点
をもつ形状記憶樹脂の線材とからなることを特徴
とする血路閉塞具。 (2) 前記金属コイルが体温より低い温度の変態
点をもつ形状記憶合金からなる請求項１記載の血
路閉塞具。 (3) 前記形状記憶樹脂の線材が前記金属コイル
の形状に沿つた形状に記憶処理されている請求項
１又は２記載の穴路閉塞具。 (4) 前記形状記憶樹脂の線材が、前記一次コイ
ルの端部から突出して、前記一次コイルの端部を
覆つている請求項１〜３のいずれか１つに記載の
血路閉塞具。 (5) 前記形状記憶樹脂の線材が、前記一次コイ
ルの一方の端部から突出して長く伸び、形状復帰
したときに、前記二次コイルの径が小さくなる方
の端部に連続して、更に径が小さくなる渦巻きを
形成する請求項１〜４のいずれか１つに記載の血
路閉塞具。[Claims for Utility Model Registration] (1) A metal wire is formed into a coil shape to form a primary coil, this primary coil is further formed into a coil form to form a secondary coil, and this secondary coil has a coil diameter. It is characterized by comprising a metal coil having a tapered shape such that the temperature gradually decreases, and a wire rod made of a shape memory resin having a glass transition point lower than body temperature, which is inserted inside the primary coil. Blood duct obturator. (2) The blood duct obturator according to claim 1, wherein the metal coil is made of a shape memory alloy having a transformation point lower than body temperature. (3) The hole passage obturator according to claim 1 or 2, wherein the wire rod of the shape memory resin is memorized into a shape that follows the shape of the metal coil. (4) The blood duct obturator according to any one of claims 1 to 3, wherein the shape memory resin wire protrudes from an end of the primary coil and covers the end of the primary coil. (5) The shape memory resin wire protrudes from one end of the primary coil and extends long, and when it returns to its shape, continues to the end of the secondary coil where the diameter becomes smaller, and further extends. The blood duct occlusion device according to any one of claims 1 to 4, which forms a spiral whose diameter becomes smaller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6106790U JPH0546418Y2 (en) | 1990-06-08 | 1990-06-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6106790U JPH0546418Y2 (en) | 1990-06-08 | 1990-06-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0420307U true JPH0420307U (en) | 1992-02-20 |
| JPH0546418Y2 JPH0546418Y2 (en) | 1993-12-06 |
Family
ID=31588990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6106790U Expired - Lifetime JPH0546418Y2 (en) | 1990-06-08 | 1990-06-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0546418Y2 (en) |
-
1990
- 1990-06-08 JP JP6106790U patent/JPH0546418Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0546418Y2 (en) | 1993-12-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |