JP4609904B2 - 医療用ガイドワイヤ - Google Patents
医療用ガイドワイヤ Download PDFInfo
- Publication number
- JP4609904B2 JP4609904B2 JP2008075383A JP2008075383A JP4609904B2 JP 4609904 B2 JP4609904 B2 JP 4609904B2 JP 2008075383 A JP2008075383 A JP 2008075383A JP 2008075383 A JP2008075383 A JP 2008075383A JP 4609904 B2 JP4609904 B2 JP 4609904B2
- Authority
- JP
- Japan
- Prior art keywords
- guide wire
- catheter
- blood flow
- spiral
- medical
- 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 - Lifetime
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- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 206010052428 Wound Diseases 0.000 description 2
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- KIUKXJAPPMFGSW-DNGZLQJQSA-N (2S,3S,4S,5R,6R)-6-[(2S,3R,4R,5S,6R)-3-Acetamido-2-[(2S,3S,4R,5R,6R)-6-[(2R,3R,4R,5S,6R)-3-acetamido-2,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-2-carboxy-4,5-dihydroxyoxan-3-yl]oxy-5-hydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-3,4,5-trihydroxyoxane-2-carboxylic acid Chemical compound CC(=O)N[C@H]1[C@H](O)O[C@H](CO)[C@@H](O)[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@H](O[C@H]2[C@@H]([C@@H](O[C@H]3[C@@H]([C@@H](O)[C@H](O)[C@H](O3)C(O)=O)O)[C@H](O)[C@@H](CO)O2)NC(C)=O)[C@@H](C(O)=O)O1 KIUKXJAPPMFGSW-DNGZLQJQSA-N 0.000 description 1
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- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
- A61M2025/09191—Guide wires made of twisted wires
Description
請求項4のカテーテルと医療用ガイドワイヤとの組立体は、請求項1又は2のいずれか1つに記載の構成に加え、スパイラル凹条線条部が、長さ方向に間欠配設されている。
即ち、(図2(A)参照)ガイドワイヤ1A〜1Cを心臓血管の大動脈弓20から左冠状動脈21に導入挿入するときは、ガイドワイヤ1A〜1Cは大動脈弓20の血流Fの逆方向に遡及前進する挿入形態となり、その大動脈弓20から分岐する左冠状動脈21に挿入するときは血流Fと同一方向に挿入する相対関係となる。
即ち(図3(C)(D)参照)粘性液流の血流F内ではガイドワイヤ1Bの表面に微細な渦流FAが生じて渦層11となり、ガイドワイヤ1Bの表面から遠ざかるに従って血流速Vを増す流体メカニズムになる。
1B 医療用ガイドワイヤ
1C 医療用ガイドワイヤ
2 芯材
3 流線形丸線部
4 半球状流線頭
5 鋸刃線条部
6 後方増径斜面
7 鋸刃部
8 太線
9 細線
10 スパイラル凹条溝
12 スパイラル凹条線条部
15 ツイスト線条部
16 線材不存在のスパイラル溝
17 中心中空部
20 大動脈弓
21 左冠状動脈
C 樹脂被覆
F 血流
FA 渦流
K カテーテル
P 前進推力
V 血流速
Claims (4)
- カテーテル内へ、高可撓性の先端部分を有する可撓性細長線状体の医療用ガイドワイヤを挿入した組立体において、
前記医療用ガイドワイヤは、前記先端部分の後方に、太線と細線の並設組合せのコイル体にして、外周にスパイラル凹条溝をあらわして成るスパイラル凹条線条部を設けた構造とし、
前記医療用ガイドワイヤが血流と同方向の挿入時には、血流が前記スパイラル凹条溝の区画壁の太線に衝接し、この衝接力作用により前進推力作用とし、及び前記カテーテル内へ手元側から先端側へ向けて注入剤の注入力・噴射力を利用することにより前記衝接力利用による前進力付与作用を増幅させて、血管内深部挿入性を向上させたことを特徴とするカテーテルと医療用ガイドワイヤとの組立体。 - 先端部分に、先端が半球状で手元側が径小となる半球状流線頭つき流線形丸線部を設けて、血流と逆方向の挿入時には、血流の動圧に対する抵抗を小にしたことを特徴とする
請求項1に記載のカテーテルと医療用ガイドワイヤとの組立体。 - 芯材の外周に撚合構成したスパイラル凹条線条部が、後端まで連設し、かつ、前記スパイラル凹条線条部の前記芯材を不存在にした構造から成る請求項1又は2のいずれか1つに記載のカテーテルと医療用ガイドワイヤとの組立体
- スパイラル凹条線条部が、長さ方向に間欠配設された請求項1又は2のいずれか1つに記載のカテーテルと医療用ガイドワイヤとの組立体
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008075383A JP4609904B2 (ja) | 2008-03-24 | 2008-03-24 | 医療用ガイドワイヤ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008075383A JP4609904B2 (ja) | 2008-03-24 | 2008-03-24 | 医療用ガイドワイヤ |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004127766A Division JP4181081B2 (ja) | 2004-04-23 | 2004-04-23 | 医療用ガイドワイヤ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008155054A JP2008155054A (ja) | 2008-07-10 |
JP4609904B2 true JP4609904B2 (ja) | 2011-01-12 |
Family
ID=39656562
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008075383A Expired - Lifetime JP4609904B2 (ja) | 2008-03-24 | 2008-03-24 | 医療用ガイドワイヤ |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4609904B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104511082A (zh) * | 2013-10-02 | 2015-04-15 | 朝日英达科株式会社 | 轴及使用该轴的导线 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103703297B (zh) * | 2011-06-13 | 2015-09-30 | 日星电气有限公司 | 用于导丝的树脂制管、用于导丝的树脂制管的制造方法及导丝 |
JP5927974B2 (ja) * | 2012-02-17 | 2016-06-01 | 住友ベークライト株式会社 | 医療機器 |
JP2015070896A (ja) | 2013-10-02 | 2015-04-16 | 朝日インテック株式会社 | シャフト及びそのシャフトを用いたガイドワイヤ |
JP6061341B2 (ja) * | 2013-12-06 | 2017-01-18 | 朝日インテック株式会社 | ガイドワイヤ |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5497785A (en) * | 1994-07-27 | 1996-03-12 | Cordis Corporation | Catheter advancing guidewire and method for making same |
JP2001212243A (ja) * | 2000-02-02 | 2001-08-07 | Ci Medeikku:Kk | 医療用ガイドワイヤ |
JP2003190290A (ja) * | 2001-12-26 | 2003-07-08 | Asahi Intecc Co Ltd | 医療用ガイドワイヤ |
JP2003265617A (ja) * | 2002-03-20 | 2003-09-24 | Asahi Intecc Co Ltd | 圧力センサ付ガイドワイヤ |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62231675A (ja) * | 1986-03-31 | 1987-10-12 | 加藤発条株式会社 | 医療用ガイドワイヤ |
-
2008
- 2008-03-24 JP JP2008075383A patent/JP4609904B2/ja not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5497785A (en) * | 1994-07-27 | 1996-03-12 | Cordis Corporation | Catheter advancing guidewire and method for making same |
JP2001212243A (ja) * | 2000-02-02 | 2001-08-07 | Ci Medeikku:Kk | 医療用ガイドワイヤ |
JP2003190290A (ja) * | 2001-12-26 | 2003-07-08 | Asahi Intecc Co Ltd | 医療用ガイドワイヤ |
JP2003265617A (ja) * | 2002-03-20 | 2003-09-24 | Asahi Intecc Co Ltd | 圧力センサ付ガイドワイヤ |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104511082A (zh) * | 2013-10-02 | 2015-04-15 | 朝日英达科株式会社 | 轴及使用该轴的导线 |
CN104511082B (zh) * | 2013-10-02 | 2019-07-26 | 朝日英达科株式会社 | 轴及使用该轴的导线 |
Also Published As
Publication number | Publication date |
---|---|
JP2008155054A (ja) | 2008-07-10 |
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