JPH0428596Y2 - - Google Patents
Info
- Publication number
- JPH0428596Y2 JPH0428596Y2 JP1989013171U JP1317189U JPH0428596Y2 JP H0428596 Y2 JPH0428596 Y2 JP H0428596Y2 JP 1989013171 U JP1989013171 U JP 1989013171U JP 1317189 U JP1317189 U JP 1317189U JP H0428596 Y2 JPH0428596 Y2 JP H0428596Y2
- Authority
- JP
- Japan
- Prior art keywords
- shape
- expansion member
- tubular organ
- expansion
- capsule
- 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
- 210000000056 organ Anatomy 0.000 claims description 30
- 239000002775 capsule Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 12
- 210000000626 ureter Anatomy 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 229920003002 synthetic resin Polymers 0.000 description 7
- 239000000057 synthetic resin Substances 0.000 description 7
- 108010010803 Gelatin Proteins 0.000 description 5
- 229920000159 gelatin Polymers 0.000 description 5
- 239000008273 gelatin Substances 0.000 description 5
- 235000019322 gelatine Nutrition 0.000 description 5
- 235000011852 gelatine desserts Nutrition 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 5
- 230000003446 memory effect Effects 0.000 description 4
- 102000004190 Enzymes Human genes 0.000 description 3
- 108090000790 Enzymes Proteins 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 230000036760 body temperature Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000916 dilatatory effect Effects 0.000 description 3
- 210000004204 blood vessel Anatomy 0.000 description 2
- 210000000621 bronchi Anatomy 0.000 description 2
- 230000010339 dilation Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 201000001320 Atherosclerosis Diseases 0.000 description 1
- 208000005655 Bronchomalacia Diseases 0.000 description 1
- 208000000913 Kidney Calculi Diseases 0.000 description 1
- 206010029148 Nephrolithiasis Diseases 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003238 esophagus Anatomy 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- -1 stainless steel Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
Description
【考案の詳細な説明】
「産業上の利用分野」
本考案は、例えば尿管、血管、食道、気管など
の人体の管状器官を拡張するための管状器官拡張
器具に関する。[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a tubular organ expansion device for expanding tubular organs of the human body, such as ureters, blood vessels, esophagus, and trachea.
「従来の技術」
人体の管状器官の治療に際して、管状器官を外
科的に拡張させることが有効な場合がある。``Prior Art'' When treating tubular organs in the human body, it may be effective to surgically expand the tubular organs.
例えば腎結石を衝撃波で破壊する治療において
は、破壊後の石を取出すために尿管を拡張して取
出しやすくしている。 For example, in the treatment of destroying kidney stones with shock waves, the ureter is dilated to facilitate removal of the stones after they have been destroyed.
また、小児の気管支軟化症などにおいて、気管
支が閉塞され、呼吸障害を起こすことが知られて
おり、このような場合にも外科的な手段によつて
気管支を拡張させる治療が行なわれている。 Furthermore, it is known that bronchi are obstructed in cases such as bronchomalacia in children, causing respiratory problems, and even in such cases, treatment is performed to dilate the bronchi by surgical means.
更に、粥状動脈硬化症などにおいても、外科的
な手段によつて血管の狭窄部を拡張する治療が行
なわれている。 Furthermore, treatment for atherosclerosis and the like is performed by dilating the narrowed portion of the blood vessel by surgical means.
このような管状器官の拡張方法として、管状器
官内に合成樹脂、金属などからなる拡張部材を挿
入し、強制的に管状器官を拡張する方法が知られ
ている。 As a method for expanding such a tubular organ, a method is known in which an expansion member made of synthetic resin, metal, or the like is inserted into the tubular organ to forcibly expand the tubular organ.
この方法は、管状器官にカテーテルなどのガイ
ドチユーブを挿入し、このチユーブを通して拡張
部材を挿入するだけでよく、患部を切り開くなど
の大がかりな手術を必要としないため、手術が容
易で患者に与える負担が少ないという利点を有し
ている。 This method only requires inserting a guide tube such as a catheter into a tubular organ and inserting an expansion member through this tube, and does not require major surgery such as cutting open the affected area, so it is easy to operate and does not place a burden on the patient. It has the advantage of having less
「考案が解決しようとする課題」
上記のような拡張部材としては、ガイドチユー
ブに挿入することができ、しかもガイドチユーブ
から押し出された後、管状器官を効果的に拡張で
きるように拡径されるものが好ましい。``Problem to be solved by the invention'' The above-mentioned expansion member can be inserted into the guide tube, and after being pushed out of the guide tube, the diameter is expanded so as to effectively expand the tubular organ. Preferably.
しかしながら、人体の管状器官は、複雑に曲折
していたり、治療部位までの距離が長かつたり、
極めて細い場合もあるため、ガイドチユーブを通
して拡張部材を挿入することが困難であつた。 However, the tubular organs of the human body are complicatedly curved, and the distance to the treatment site is long.
It has been difficult to insert the expansion member through the guide tube because it can be very thin.
このため、拡張部材の大きさや構造などに制限
が生じ、拡張部材を挿入しても管状器官を効果的
に拡張できない場合があつた。 For this reason, there are restrictions on the size and structure of the expansion member, and even if the expansion member is inserted, it may not be possible to effectively expand the tubular organ.
したがつて、本考案の目的は、人体の管状器官
に容易に挿入でき、しかも管状器官を効果的に拡
張できるようにした管状器官の拡張器具を提供す
ることにある。 SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a tubular organ expansion device that can be easily inserted into a tubular organ of the human body and can effectively expand the tubular organ.
「課題を解決するための手段」
上記目的を達成するため、本考案は、人体の管
状器官に挿入して管状器官を拡張させる拡張器具
において、弾性復元力又は形状復帰力を有する拡
張部材を縮径させて、体内において溶解可能な材
質からなるカプセル又はチユーブに挿入したこと
を特徴とする。"Means for Solving the Problems" In order to achieve the above object, the present invention provides an expansion device that is inserted into a tubular organ of the human body to expand the tubular organ, in which an expansion member having an elastic restoring force or a shape restoring force is compressed. It is characterized by being inserted into a capsule or tube made of a material that can be dissolved in the body.
「作用」
本考案では、上記のように拡張部材をカプセル
又はチユーブに挿入したので、拡張部材を縮径さ
せた形状に維持し、かつ、ガイドチユーブなどの
内部を滑りやすくすることができる。このため、
本考案の拡張器具は、例えばガイドチユーブなど
を通して管状器官の内部に容易に挿入することが
できる。"Operation" In the present invention, since the expansion member is inserted into the capsule or tube as described above, the expansion member can be maintained in a reduced diameter shape and can easily slide inside the guide tube or the like. For this reason,
The expansion device of the present invention can be easily inserted into a tubular organ through, for example, a guide tube.
本考案の拡張器具は、管状器官内部に挿入され
たとき、カプセル又はチユーブを溶解させること
ができる。溶解は、例えばカプセル又はチユーブ
を、体温によつて溶融するゼラチン、ワツクスな
どの材料で形成したり、体液によつて溶解する水
溶性樹脂、糖類などの材料で形成したり、酵素、
薬液などを接触させることによつて溶解する材料
で形成することにより行なうことができる。 The expansion device of the present invention is capable of dissolving the capsule or tube when inserted inside the tubular organ. For example, capsules or tubes may be formed from materials such as gelatin or wax that melt with body temperature, or may be formed from materials such as water-soluble resins or sugars that are dissolved by body fluids, or may be formed from materials such as enzymes,
This can be done by forming it from a material that dissolves when brought into contact with a chemical solution or the like.
カプセル又はチユーブが溶解すると、拡張部材
が露出し、拡張部材の有する弾性復元力又は形状
復帰力によつて拡張した形状となる。この結果、
管状器官は、拡張部材によつて内側から押し広げ
られ、強制的に拡張される。 When the capsule or tube dissolves, the expansion member is exposed and assumes an expanded shape due to the elastic restoring force or shape recovery force of the expansion member. As a result,
The tubular organ is forced open from the inside by the expansion member and is forcibly expanded.
なお、拡張部材としては、金属、合成樹脂など
のいずれの材質も用いられるが、特に形状記憶合
金が好ましく採用される。形状は、コイル形状、
Ｃ字形、断面Ｃ字形をなす筒形など各種の形状が
採用できる。これらの拡張部材は、カプセル又は
チユーブが溶解したとき、弾性復元力によつて拡
張するものでもよく、形状記憶効果によつて拡張
するものであつてもよい。 The expansion member may be made of any material such as metal or synthetic resin, but shape memory alloy is particularly preferably used. The shape is a coil shape,
Various shapes can be adopted, such as a C-shape and a cylindrical shape with a C-shaped cross section. These expansion members may expand due to elastic restoring force or due to a shape memory effect when the capsule or tube is dissolved.
「実施例」
第１図には本考案による管状器官拡張器具の一
実施例が示されている。"Embodiment" FIG. 1 shows an embodiment of the tubular organ expansion device according to the present invention.
この拡張器具１１は、形状記憶合金のコイルか
らなる拡張部材１２をゼラチンからカプセル１３
で包み込んで形成されている。カプセル１３は、
カツプ状をなす部材１４，１５からなり、径の大
きい方の部材１４に径の小さい方の部材１５が挿
入され、カプセル状となる。 This expansion device 11 has an expansion member 12 made of a coil of shape memory alloy made of gelatin and a capsule 13.
It is formed by wrapping it in. Capsule 13 is
It consists of cup-shaped members 14 and 15, and the smaller diameter member 15 is inserted into the larger diameter member 14 to form a capsule shape.
拡張部材１２は、カプセル１３に挿入するとき
には、第２図ｂに示すように縮径され、カプセル
１３から出されたときに、弾性復元力又は形状記
憶効果によつて第２図ａに示すように拡径される
ようになつている。形状記憶効果は、体温によつ
て変態することにより作用する。 When the expansion member 12 is inserted into the capsule 13, the diameter is reduced as shown in FIG. 2b, and when taken out from the capsule 13, the expansion member 12 is reduced in diameter as shown in FIG. The diameter is being expanded to . The shape memory effect works by being transformed by body temperature.
第３図には本考案による管状器官拡張器具の他
の実施例が示されている。 FIG. 3 shows another embodiment of the tubular organ expansion device according to the present invention.
この拡張器具１１は、形状記憶合金のコイルか
らなる拡張部材１２がゼラチンからなるチユーブ
１６内に挿入されて形成されている。この場合
も、拡張部材１２は第２図ｂに示すように縮径さ
れた状態で挿入されている。 This expansion device 11 is formed by inserting an expansion member 12 made of a coil of shape memory alloy into a tube 16 made of gelatin. Also in this case, the expansion member 12 is inserted in a reduced diameter state as shown in FIG. 2b.
なお、上記実施例において、カプセル１３又は
チユーブ１６の材質は、ゼラチン以外に前述した
ような各種の材質を用いることができる。 In the above embodiments, the capsule 13 or the tube 16 may be made of various materials other than gelatin as described above.
また、拡張部材１２の材質は、形状記憶効果や
超弾性を有する形状記憶合金が最も好ましいが、
ステンレスなどの他の金属や、各種の合成樹脂な
どを用いることもできる。更には、金属の表面を
シリコン樹脂、フツ素樹脂などで被覆したもので
あつてもよい。 The material of the expansion member 12 is most preferably a shape memory alloy having a shape memory effect and superelasticity;
Other metals such as stainless steel, various synthetic resins, etc. can also be used. Furthermore, the surface of metal may be coated with silicone resin, fluororesin, or the like.
第４〜７図には、本考案で用いられる拡張部材
の他の例が示されている。 4 to 7 show other examples of expansion members used in the present invention.
第４図の拡張部材１７は、金属、合成樹脂など
の角線をＣ字状に屈曲させて構成したものであ
り、ａは拡張した形状、ｂは縮径した形状を示し
ている。 The expansion member 17 in FIG. 4 is constructed by bending a rectangular wire made of metal, synthetic resin, etc. into a C-shape, and a indicates an expanded shape and b indicates a reduced diameter shape.
第５図の拡張部材１８は、金属、合成樹脂など
の板体を端面がＣ字状をなすように屈曲させて構
成したものであり、ａは拡張した形状、ｂは縮径
した形状を示している。 The expansion member 18 in FIG. 5 is constructed by bending a plate made of metal, synthetic resin, etc. so that the end face forms a C-shape, where a indicates an expanded shape and b indicates a reduced diameter shape. ing.
第６図の拡張部材１９は、金属、合成樹脂など
からなる線材をコイル状にしてさらにコイルを押
し潰すことにより構成したものであり、ａは拡張
した形状、ｂは縮小したした形状を示している。 The expansion member 19 in FIG. 6 is constructed by coiling a wire material made of metal, synthetic resin, etc. and then crushing the coil, and a shows the expanded shape and b shows the contracted shape. There is.
第７図の拡張部材２０は、金属、合成樹脂など
からなる線材の両端部２０ａ，２０ｂをコ字状に
折曲し、さらにこの両端部２０ａ，２０ｂを側方
から見てＣ字状をなすように屈曲させて構成した
ものであり、ａは拡張した形状、ｂは縮径した形
状を示している。 The expansion member 20 in FIG. 7 is made by bending both ends 20a and 20b of a wire made of metal, synthetic resin, etc. into a U-shape, and further forming a C-shape when viewed from the side. It is constructed by being bent as shown in FIG.
第８図〜第１３図は、第１図に示した本考案の
拡張器具１１を用いて尿管を拡張する方法を示し
ている。 8 to 13 show a method of dilating the ureter using the dilation device 11 of the present invention shown in FIG.
第８図において、２１は膀胱、２２は尿管であ
り、尿管２２の入口からガイドワイヤー２３を挿
入する。 In FIG. 8, 21 is the bladder, 22 is the ureter, and a guide wire 23 is inserted from the entrance of the ureter 22.
第９図に示すように、ガイドワイヤー２３の外
周にガイドチユーブとしてのカテーテル２４を差
し込み、カテーテル２４をガイドワイヤー２３に
沿つて尿管２２内に挿入する。 As shown in FIG. 9, a catheter 24 serving as a guide tube is inserted around the outer periphery of the guide wire 23, and the catheter 24 is inserted into the ureter 22 along the guide wire 23.
第１０図に示すように、カテーテル２４内から
ガイドワイヤー２３を引き抜く。 As shown in FIG. 10, the guide wire 23 is pulled out from inside the catheter 24.
第１１図に示すように、カテーテル２４内に第
１図に示した拡張器具１１を挿入し、プツシヤー
２５でカテーテル２４先端に押し込む。 As shown in FIG. 11, the expansion device 11 shown in FIG. 1 is inserted into the catheter 24 and pushed into the tip of the catheter 24 with the pusher 25. As shown in FIG.
第１２図に示すように、拡張器具１１をカテー
テル２４先端から尿管２２内に押し出す。 As shown in FIG. 12, the expansion device 11 is pushed out from the tip of the catheter 24 into the ureter 22.
第１３図に示すように、拡張器具１１のゼラチ
ンでできたカプセル１３が体温によつて溶解し、
形状記憶合金からなる拡張部材１２が弾性復帰力
又は形状記憶効果によつて拡張する。その結果、
尿管２２が拡張される。 As shown in FIG. 13, the capsule 13 made of gelatin of the expansion device 11 is dissolved by body temperature.
The expansion member 12 made of a shape memory alloy expands due to elastic return force or shape memory effect. the result,
The ureter 22 is dilated.
なお、カプセル１３が酵素や薬液などによつて
溶解する材質の場合は、カテーテル２４を通して
酵素や薬液などを注入することにより、カプセル
１３を溶解する。 In addition, if the capsule 13 is made of a material that can be dissolved by an enzyme or a drug solution, the capsule 13 is dissolved by injecting the enzyme or drug solution through the catheter 24.
「考案の効果」
以上説明したように、本考案によれば、弾性復
元力又は形状復帰力を有する拡張部材を縮径させ
て、体内において溶解可能な材質からなるカプセ
ル又はチユーブに挿入してなるので、拡張部材を
縮径させた形状に維持し、かつ、ガイドチユーブ
などの内部を滑りやすくすることができる。この
ため、例えばガイドチユーブなどを通して管状器
官の内部に容易に挿入することができる。そし
て、管状器官内部においてカプセル又はチユーブ
を溶解し、拡張部材を露出させ弾性復元力又は形
状復帰力により拡張させて、管状器官を効果的に
拡張することができる。"Effects of the Invention" As explained above, according to the present invention, an expansion member having elastic restoring force or shape restoring force is reduced in diameter and inserted into a capsule or tube made of a material that can be dissolved in the body. Therefore, the expansion member can be maintained in a reduced diameter shape, and the inside of the guide tube etc. can be easily slid. Therefore, it can be easily inserted into a tubular organ through, for example, a guide tube. Then, the capsule or tube is dissolved inside the tubular organ, the expansion member is exposed and expanded by elastic restoring force or shape restoring force, and the tubular organ can be effectively expanded.
第１図は本考案の一実施例による管状器官拡張
器具の断面図、第２図は上記拡張器具における拡
張部材の拡張および縮径形状を示す図、第３図は
本考案の他の実施例による管状器官拡張器具の断
面図、第４図、第５図、第６図及び第７図は本考
案の管状器官拡張器具に用いられる拡張部材のそ
れぞれ異なる例における拡張および縮径形状を示
す図、第８図、第９図、第１０図、第１１図、第
１２図及び第１３図は本考案の管状器官拡張器具
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は拡張器具、１２は拡張部材、１３
はカプセル、１６はチユーブ、１７，１８，１
９，２０は拡張部材、２２は尿管である。
FIG. 1 is a sectional view of a tubular organ expansion device according to an embodiment of the present invention, FIG. 2 is a diagram showing the expansion and diameter-reduced shape of the expansion member in the expansion device, and FIG. 3 is another embodiment of the present invention. FIGS. 4, 5, 6, and 7 are diagrams showing the expanded and reduced diameter shapes of different examples of the expansion member used in the tubular organ expansion device of the present invention. , FIG. 8, FIG. 9, FIG. 10, FIG. 11, FIG. 12, and FIG. 13 are explanatory diagrams sequentially showing a method for dilating a ureter using the tubular organ dilation device of the present invention. be. In the figure, 11 is an expansion device, 12 is an expansion member, 13
is a capsule, 16 is a tube, 17, 18, 1
9 and 20 are expansion members, and 22 is a ureter.
Claims (1)
る拡張器具において、弾性復元力又は形状復帰力
を有する拡張部材を縮径させて、体内において溶
解可能な材質からなるカプセル又はチユーブに挿
入したことを特徴とする管状器官の拡張器具。 In an expansion device that is inserted into a tubular organ of the human body to expand the tubular organ, an expansion member having elastic restoring force or shape restoring force is reduced in diameter and inserted into a capsule or tube made of a material that can be dissolved in the body. A device for expanding tubular organs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989013171U JPH0428596Y2 (en) | 1989-02-07 | 1989-02-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989013171U JPH0428596Y2 (en) | 1989-02-07 | 1989-02-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02104050U JPH02104050U (en) | 1990-08-17 |
| JPH0428596Y2 true JPH0428596Y2 (en) | 1992-07-10 |
Family
ID=31223266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989013171U Expired JPH0428596Y2 (en) | 1989-02-07 | 1989-02-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0428596Y2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3322867B1 (en) * | 2001-02-20 | 2002-09-09 | エスエムエー メディカル インコーポレーテッド | Insertion member for insertion into tubular organ of living body and method of manufacturing the same |
| US20030216769A1 (en) | 2002-05-17 | 2003-11-20 | Dillard David H. | Removable anchored lung volume reduction devices and methods |
| US20030181922A1 (en) | 2002-03-20 | 2003-09-25 | Spiration, Inc. | Removable anchored lung volume reduction devices and methods |
| US7533671B2 (en) | 2003-08-08 | 2009-05-19 | Spiration, Inc. | Bronchoscopic repair of air leaks in a lung |
| US8136230B2 (en) * | 2007-10-12 | 2012-03-20 | Spiration, Inc. | Valve loader method, system, and apparatus |
-
1989
- 1989-02-07 JP JP1989013171U patent/JPH0428596Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02104050U (en) | 1990-08-17 |
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