JPH037841U - - Google Patents
Info
- Publication number
- JPH037841U JPH037841U JP1989068476U JP6847689U JPH037841U JP H037841 U JPH037841 U JP H037841U JP 1989068476 U JP1989068476 U JP 1989068476U JP 6847689 U JP6847689 U JP 6847689U JP H037841 U JPH037841 U JP H037841U
- Authority
- JP
- Japan
- Prior art keywords
- shape
- shape memory
- tubular organ
- memory alloy
- expanding
- 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
Description
第１図は本考案の一実施例による拡張具の断面
図、第２図は同拡張具の拡張した形状及び縮小さ
せた形状を示す図、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図は本考案の他の実施例による拡張具を示す
図、第７図は本考案の更に他の実施例による拡張
具を示す図、第８図、第９図、第１０図、第１１
図、第１２図及び第１３図は本考案の拡張具を用
いて尿管を拡張する方法を順序に従つて示す説明
図である。
図中、１１、１４、１７は拡張具、１２は形状
記憶合金の線材、１３は形状記憶樹脂のチユーブ
、１５は形状記憶合金の平線、１６は形状記憶樹
脂の平線、１７ａは端部、２２は尿管、２４はカ
テーテル、２５はプツシヤである。
Fig. 1 is a sectional view of an expansion device according to an embodiment of the present invention, Fig. 2 is a diagram showing an expanded shape and a contracted shape of the expansion device, and Fig. 3 is a temperature of shape memory alloy and shape memory resin. Figure 4 shows the temperature rise over time when shape memory alloy and shape memory resin are placed in a predetermined temperature atmosphere, Figure 5 shows the relationship between shape memory alloy and shape memory resin. A diagram showing the load generated over time when resins are combined,
6 is a diagram showing a dilator according to another embodiment of the present invention, FIG. 7 is a diagram illustrating a dilator according to still another embodiment of the present invention, and FIGS. 8, 9, 10, and 11
12 and 13 are explanatory diagrams sequentially showing a method of dilating the ureter using the dilator of the present invention. In the figure, 11, 14, and 17 are expansion tools, 12 is a shape memory alloy wire, 13 is a shape memory resin tube, 15 is a shape memory alloy flat wire, 16 is a shape memory resin flat wire, and 17a is an end. , 22 is a ureter, 24 is a catheter, and 25 is a pusher.
Claims (1)
して、形状復帰させることにより管状器官を拡張
させる拡張具において、体温より低い温度の変態
点をもち、形状復帰することにより拡張した形状
となる形状記憶合金と、体温より低い温度のガラ
ス転移点をもつ形状記憶樹脂とを接合してなるこ
とを特徴とする管状器官の拡張具。 (2) 前記形状記憶合金がコイル形状をなす線材
からなり、前記形状記憶樹脂がチユーブ状をなし
て前記線材に被着されている請求項１記載の管状
器官の拡張具。[Claims for Utility Model Registration] (1) An expansion device that is inserted into a tubular organ of the human body in a contracted state and expands the tubular organ by restoring its shape, which has a transformation point lower than body temperature; A device for expanding a tubular organ, characterized in that it is made by bonding a shape memory alloy that assumes an expanded shape by returning to its shape and a shape memory resin that has a glass transition point lower than body temperature. (2) The device for expanding a tubular organ according to claim 1, wherein the shape memory alloy is made of a coil-shaped wire, and the shape memory resin is attached to the wire in a tube shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989068476U JPH0354751Y2 (en) | 1989-06-12 | 1989-06-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989068476U JPH0354751Y2 (en) | 1989-06-12 | 1989-06-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH037841U true JPH037841U (en) | 1991-01-25 |
| JPH0354751Y2 JPH0354751Y2 (en) | 1991-12-04 |
Family
ID=31602950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989068476U Expired JPH0354751Y2 (en) | 1989-06-12 | 1989-06-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0354751Y2 (en) |
-
1989
- 1989-06-12 JP JP1989068476U patent/JPH0354751Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0354751Y2 (en) | 1991-12-04 |
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