JP3100671U - Coronary artery stenosis penetrating catheter to measure the length of diseased blood vessels when placing a stent during percutaneous coronary angioplasty - Google Patents
Coronary artery stenosis penetrating catheter to measure the length of diseased blood vessels when placing a stent during percutaneous coronary angioplasty Download PDFInfo
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- JP3100671U JP3100671U JP2003272058U JP2003272058U JP3100671U JP 3100671 U JP3100671 U JP 3100671U JP 2003272058 U JP2003272058 U JP 2003272058U JP 2003272058 U JP2003272058 U JP 2003272058U JP 3100671 U JP3100671 U JP 3100671U
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Abstract
【課題】この考案は、経皮的冠動脈形成術を行う際に、冠動脈の狭窄病変に応じた、適切な長さのステントの留置を安全に行うための装置に関するものである。
【解決手段】冠動脈狭窄部に冠動脈形成術用のワイヤーを通過させた後に、ポリエチレン製のインナーチューブ（１）にレントゲン不透過のマーカー（２）をつけた冠動脈狭窄部貫通用カテーテルの先端からワイヤーを側溝（３）へ通し、カテーテルを冠動脈内の狭窄部まで誘導する。冠動脈造影上の狭窄病変部を、カテーテルのレントゲン不透過のマーカー部（２）に透視下にて合わせることで、実際の狭窄長を計測する。計測終了後カテーテルは抜去し、次に適切な長さのステントを挿入する。
【選択図】図１The present invention relates to an apparatus for safely placing a stent of an appropriate length in accordance with a stenotic lesion of a coronary artery during percutaneous coronary angioplasty.
After passing a wire for coronary angioplasty through a coronary artery stenosis, a wire is inserted from the distal end of a catheter for penetrating a coronary artery stenosis having a radiopaque marker (2) attached to a polyethylene inner tube (1). Through the gutter (3) to guide the catheter to the stenosis in the coronary artery. The actual stenosis length is measured by aligning the stenotic lesion on coronary angiography with a radiographically opaque marker (2) of the catheter under fluoroscopy. After the measurement, the catheter is removed, and then a stent of an appropriate length is inserted.
[Selection diagram] Fig. 1
Description
経皮的冠動脈形成術とは、狭心症または急性心筋梗塞症の患者に対して、疾患の原因である狭くなった冠動脈の中に、ワイヤーを介してバルーンやステントを挿入し、血管の内側より狭窄部の拡張を行う治療法である。このステントは冠動脈狭窄部の形態、長さに応じて選択し、留置することが安全に手技を進める上で重要である。この考案は経皮的冠動脈形成術において適切なステントの長さを決定するための冠動脈狭窄病変長計測が可能なカテーテル装置に関するものである。 Percutaneous coronary angioplasty is a technique for patients with angina or acute myocardial infarction who insert a balloon or stent through a wire into the narrowed coronary artery causing This is a treatment method that expands the stenosis. It is important to select this stent according to the shape and length of the coronary artery stenosis and to place it in order to safely proceed with the procedure. The present invention relates to a catheter device capable of measuring a coronary stenosis lesion length for determining an appropriate stent length in percutaneous coronary angioplasty.
従来の方法では、冠動脈にステントを留置する場合に、ステントのサイズの選択は、冠動脈造影を見た上での術者の経験または感覚による所謂、目測で決められていた。したがって、病変部に対して留置したステントが短すぎたり、長かったりする不都合が生じることが発生しやすく、仮にステントが短すぎれば追加のステントが必要になり、また長すぎた場合、将来ステント内の再狭窄の原因になる危険性があった。 In the conventional method, when the stent is placed in the coronary artery, the selection of the size of the stent is determined by so-called visual measurement based on the experience or sensation of the operator after viewing the coronary angiography. Therefore, it is easy for the stent placed in the lesion to be too short or too long, and if the stent is too short, an additional stent is required. At risk of restenosis.
本考案は、経皮的冠動脈形成術において適切な長さのステントを留置するために考案された、冠動脈病変長を計測するものである。 The present invention measures a coronary artery lesion length designed for placing a stent of an appropriate length in percutaneous coronary angioplasty.
その構成を説明すると、
（イ）ポリエチレン製のインナーチューブ（１）に、先端から５ｍｍ、１５ｍｍ、２０ｍｍ、２５ｍｍ、３０ｍｍ、３５ｍｍ、４０ｍｍの部位に０．７ｍｍ大のレントゲン不透過（レントゲンに写る）のプラチナ９０％／イリジウム１０％製マーカー（２）をつける。
（ロ）ポリアミド製チューブの中にインナーチューブ（イ）を入れ、先端から側溝（３）に経皮的冠動脈形成術用のワイヤーが通過できる穴をあける。
以上のように装置する。To explain the configuration,
(A) In a polyethylene inner tube (1), 0.7 mm-sized radiopaque (90%) platinum / iridium, which is 0.7 mm larger, at 5 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, and 40 mm from the tip. Attach a 10% marker (2).
(B) An inner tube (a) is placed in a polyamide tube, and a hole through which a wire for percutaneous coronary angioplasty can pass is formed in the side groove (3) from the tip.
The device is operated as described above.
次に本考案の実施の形態を述べると、まず冠動脈狭窄部に冠動脈形成術用のワイヤーを通過させた後に、インナーチューブ（１）にレントゲン不透過のマーカー（２）をつけた冠動脈狭窄部貫通用カテーテルを、その先端から側溝（３）へワイヤーを通し滑らして行くことで、カテーテルを冠動脈内の狭窄部まで誘導する。そして、冠動脈造影上の狭窄病変部をカテーテルのレントゲン不透過のマーカー（２）に透視下にて合わせることで、実際の狭窄長を計測する。計測終了後カテーテルは抜去し、次に適切なサイズのステントを挿入する。この、レントゲン不透過のマーカー（２）のついた冠動脈狭窄部貫通用カテーテルを使用することで、病変部に対してステントが短すぎたり、長かったりする不都合が解消されるため安全であり、また追加のステントを必要とすることもなくなるため、コスト面でも有用である。 Next, an embodiment of the present invention will be described. First, a wire for coronary angioplasty is passed through a coronary artery stenosis, and then a penetrating coronary artery stenosis having an X-ray opaque marker (2) attached to an inner tube (1). The catheter is guided to the stenosis in the coronary artery by sliding the catheter through the wire from the tip to the side groove (3). Then, the actual stenosis length is measured by aligning the stenotic lesion on coronary angiography with a radiographic opaque marker (2) of the catheter under fluoroscopy. After the measurement, the catheter is removed, and then a stent of an appropriate size is inserted. By using the coronary artery stenosis penetrating catheter provided with the radiopaque marker (2), the inconvenience that the stent is too short or too long for the lesion can be solved, and it is safe. This eliminates the need for an additional stent, which is cost-effective.
したがって、本発明により経皮的冠動脈形成術において、安全に適切な長さのステントの留置が可能となる。 Therefore, according to the present invention, in percutaneous coronary angioplasty, it is possible to safely place an appropriate length stent.
１はポリエチレン製のインナーチューブ
２はレントゲン不透過のプラチナ９０％／イリジウム製マーカー
３ワイヤー通過のための側溝1 is an inner tube made of
Claims (1)
（ロ）ポリアミド製チューブの中にインナーチューブ（イ）を入れ、先端から側溝（３）に経皮的冠動脈形成術用のワイヤーが通過できる穴をあける。
以上の如く構成された、経皮的冠動脈形成術時にステントを留置する際に、冠動脈に挿入して透視下で狭窄の長さを測るための冠動脈狭窄部貫通用カテーテルである。(A) In a polyethylene inner tube (1), 0.7 mm-sized radiopaque (90%) platinum / iridium, which is 0.7 mm larger, at 5 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, and 40 mm from the tip. Attach a 10% marker (2).
(B) An inner tube (a) is placed in a polyamide tube, and a hole through which a wire for percutaneous coronary angioplasty can pass is formed in the side groove (3) from the tip.
The catheter for penetrating a coronary artery stenosis portion configured as described above, which is inserted into the coronary artery and measures the length of the stenosis under fluoroscopy when the stent is placed during percutaneous coronary angioplasty.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003272058U JP3100671U (en) | 2003-09-19 | 2003-09-19 | Coronary artery stenosis penetrating catheter to measure the length of diseased blood vessels when placing a stent during percutaneous coronary angioplasty |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003272058U JP3100671U (en) | 2003-09-19 | 2003-09-19 | Coronary artery stenosis penetrating catheter to measure the length of diseased blood vessels when placing a stent during percutaneous coronary angioplasty |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3100671U true JP3100671U (en) | 2004-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003272058U Expired - Fee Related JP3100671U (en) | 2003-09-19 | 2003-09-19 | Coronary artery stenosis penetrating catheter to measure the length of diseased blood vessels when placing a stent during percutaneous coronary angioplasty |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3100671U (en) |
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2003
- 2003-09-19 JP JP2003272058U patent/JP3100671U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |