JPH119573A - Wire for measuring diameter of blood vessel - Google Patents
Wire for measuring diameter of blood vesselInfo
- Publication number
- JPH119573A JPH119573A JP9185823A JP18582397A JPH119573A JP H119573 A JPH119573 A JP H119573A JP 9185823 A JP9185823 A JP 9185823A JP 18582397 A JP18582397 A JP 18582397A JP H119573 A JPH119573 A JP H119573A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- blood vessel
- diameter
- measuring
- sphere
- 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.)
- Pending
Links
Landscapes
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、心臓冠動脈の狭塞
部位を治療するに際し、その狭塞部位の血管径の測定に
使用する血管径計測用ワイヤに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire for measuring the diameter of a blood vessel at a narrowed portion of a coronary artery when treating the narrowed portion of the coronary artery.
【０００２】[0002]
【従来の技術】心臓冠動脈の狭塞部位の治療は、細極管
体のバルーンカテーテルに備えたバルーンを、その狭塞
部位に挿入して膨ませることによって血管を拡径した
り、或は、カテーテルの先端に備えた金属網状筒体を拡
径した患部に装着留置して拡径状態を維持する治療方法
が採られている。2. Description of the Related Art In the treatment of a narrowed portion of a coronary artery, the diameter of a blood vessel is increased by inserting a balloon provided in a balloon catheter of a microtubular body into the narrowed portion and expanding the balloon. A treatment method has been employed in which a metal net-like tubular body provided at the distal end of a catheter is mounted and detained on a diseased part having a large diameter to maintain the large diameter state.
【０００３】しかし、その狭塞部位の狭塞度合等の状態
は、患者の体質や症状によって異なるので、主たる治療
手段として（図７参照）、ウレタン・ナイロン等からな
る極細軟質短小管体のソフトチップ１６を先端に設けた
計測用カテーテル１５を予め血管１１内に挿入して造影
し、患部の狭塞部位１０に達したソフトチップ１６の造
影形状から、狭塞血管径Ｄ３と正常血管径Ｄ２を算定
（コンピュータによる演算）して、その症状に適合する
バルーン・金属網状筒体を選定して前記の治療を行った
り、その治療後の血管状態を確認する方法が採られてい
る。However, the state of the stenosis, such as the degree of stenosis, varies depending on the constitution and symptoms of the patient. Therefore, as a main treatment means (see FIG. 7), a soft and short tubule made of urethane, nylon or the like is used. The measurement catheter 15 provided with the tip 16 at the distal end is inserted into the blood vessel 11 in advance to perform imaging, and the contrast shape of the soft tip 16 that has reached the occlusive site 10 of the diseased part shows the narrowed vascular diameter D3 and the normal vascular diameter D2. Is calculated (calculated by a computer), a balloon / metal net-shaped cylinder suitable for the symptom is selected, and the above-mentioned treatment is performed, and a blood vessel state after the treatment is confirmed.
【０００４】[0004]
【発明が解決しようとする課題】以上の従来の計測用カ
テーテル１５による血管径測定方法は、ソフトチップ１
６が柔軟質弾性管体であることから、複雑に屈曲したり
分岐している血管内の進行抵抗や血管狭塞による抵抗に
よって、患部に達したソフトチップ１６が図示例示のよ
うに容易に変形して正常な管形状・管径が乱れる現象が
不可避に発生する。従って、その変形状態のソフトチッ
プ１６は、形状・サイズが不定な上、投影アングル（視
角アングル）によって形状サイズが異なってあらわれる
ので、そのソフトチップ１６の造影形状を基準として把
握する患部血管径の精度は正確性を欠き、前記の治療に
影響を与えることがある。本発明は、以上の従来技術の
難点を解消する血管径計測用ワイヤを提供するものであ
る。The above-mentioned conventional method for measuring the diameter of a blood vessel using the measuring catheter 15 employs a soft tip 1
Since the flexible elastic tube 6 is used, the soft tip 16 that has reached the affected part is easily deformed as shown in the illustrated example due to the resistance to progression in the blood vessel that is bent or branched in a complicated manner and the resistance due to the blockage of the blood vessel. A phenomenon that the normal pipe shape and diameter are disturbed occurs inevitably. Accordingly, the shape and size of the soft tip 16 in the deformed state are not fixed, and the shape and size appear different depending on the projection angle (viewing angle). Accuracy lacks accuracy and can affect the treatment described above. The present invention provides a wire for measuring the diameter of a blood vessel which solves the above-mentioned disadvantages of the prior art.
【０００５】[0005]
【課題を解決するための手段】以上の技術課題を解決す
る本発明の血管径計測用ワイヤは「血管内挿入可能の可
撓性極細長尺形状のワイヤ体からなり、該ワイヤ体の先
端部分に、横断面真円の球面を該ワイヤ体の先端方向に
臨ませると共に、該球面の中心に前記ワイヤ体を貫通
し、かつ、放射線不透過材からなる計測球体を固着した
構造」の計測球体構造の血管径計測用ワイヤと、According to the present invention, there is provided a wire for measuring the diameter of a blood vessel, which comprises a flexible ultra-fine elongated wire body which can be inserted into a blood vessel, and a distal end portion of the wire body. A spherical surface having a perfect circular cross section facing the distal end of the wire body, and a measurement sphere made of a radiopaque material fixedly penetrating the wire body at the center of the spherical surface. " A wire for measuring the vessel diameter of the structure;
【０００６】「血管内挿入可能の可撓性極細長尺形状の
ワイヤ体からなり、該ワイヤ体の先端部分に、円頭を該
ワイヤ体の先端方向に臨ませると共に、中心軸心に沿っ
て前記ワイヤ体を貫通し、かつ、放射線不透過材からな
る計測板体を固着した構造」の計測板体構造の血管径計
測用ワイヤ、になっている。[0006] A flexible, ultra-fine elongated wire body that can be inserted into a blood vessel, with a circular head facing the distal end of the wire body toward the distal end of the wire body, and along the central axis. A structure in which a measurement plate made of a radiopaque material is fixedly penetrating the wire, and a wire for measuring the diameter of a blood vessel having a measurement plate structure.
【０００７】即ち、以上の本発明の血管径計測用ワイヤ
は、その計測球体・計測板体を「白金・金・タングステ
ンのいずれかを主成分とする合金または鉛等」の放射線
不透過材からなる剛質体に構成して、血管内において変
形しない固有の形状・サイズを確保し、その計測球体・
計測板体の血管内の形状・サイズを基準として患部の血
管径の高精度算定把握を図ると共に、その計測球体から
なるものは全方位的投影アングルにおいて常に一定化し
た基準サイズの把握を図り、計測板体からなるものは板
体幅と板体厚さの大小二様の一定化した基準サイズによ
って血管径計測の一段の精度向上と板厚方向に血流路を
確保することを意図するものである。That is, in the above-described blood vessel diameter measuring wire of the present invention, the measuring sphere and the measuring plate are made of a radiopaque material such as “an alloy or lead containing platinum, gold or tungsten as a main component”. A rigid body that secures a unique shape and size that does not deform inside the blood vessel.
Aiming at high-precision calculation and grasp of the diameter of the blood vessel of the affected area based on the shape and size of the inside of the blood vessel of the measurement plate, the measurement sphere is intended to grasp the reference size that is always constant in the omnidirectional projection angle, The one consisting of a measurement plate is intended to further improve the accuracy of blood vessel diameter measurement and to secure a blood flow path in the plate thickness direction by a constant reference size of plate width and plate thickness It is.
【０００８】なお、前記構成における計測球体は、真円
球体・半円球体・長円球体・砲弾型球体等多様のものが
包含され、計測板体は真円板体・長円板体・半円板体等
の多様なものが包含される。そして、その構成の態様と
して、計測球体を大径球・小径球の大小二個の組合せに
して小球のものをワイヤ体の先端方向にした複数直列に
したり、球面から球体軸心に至るワイヤ挿入スロットを
設けて、そのスロットの底部にワイヤ体を挿入着すると
共に、スロットの上半部分の空所を血流路として確保す
る形態を採択する。The measuring spheres in the above-mentioned configuration include various spheres such as a perfect circular sphere, a semispherical sphere, an oblong sphere, and a cannonball-shaped sphere. Various objects such as a disk body are included. As a mode of the configuration, the measurement sphere is a combination of two large and small spheres of a large diameter sphere and a small diameter sphere, and a plurality of small spheres are arranged in series in the direction of the distal end of the wire, or a wire extending from the sphere to the axis of the sphere. An insertion slot is provided, a wire body is inserted into and attached to the bottom of the slot, and a space in the upper half of the slot is secured as a blood flow path.
【０００９】[0009]
【作用】以上の構成の本発明の計測球体構造の血管径計
測用ワイヤは、血管内抵抗による変形がなく正常な形状
・サイズを確保すると共に、全方位的投影アングルにお
いて常に一定したサイズ把握が可能になるので、その計
測球体を基準として算出する血管径の計測精度が極めて
向上する。そして、その態様の前記大小二球構造のもの
は、狭塞度が大なる血管の場合は小なる計測球体を基準
とし、狭塞度が小なる場合は大なる計測球体を基準とし
たり、或は、小なる計測球体を基準として狭塞血管径を
計測すると共に、大なる計測球体を基準として正常血管
径を計測することによって、一段と高精度の血管径計測
ができる。そして、前記の血流路を確保するものは、血
管径計測中の患者の血流不足トラブルと苦痛が緩和でき
る。The blood vessel diameter measuring wire of the measuring spherical structure of the present invention having the above-described structure has a normal shape and size without deformation due to intravascular resistance, and has a constant size grasp in an omnidirectional projection angle. As a result, the measurement accuracy of the blood vessel diameter calculated based on the measurement sphere is extremely improved. And the thing of the large and small two-sphere structure of the mode is based on a small measurement sphere in the case of a blood vessel with a large degree of stenosis, and based on a large measurement sphere in the case of a small degree of stenosis, or By measuring the diameter of a narrow occluded blood vessel based on a small measurement sphere and measuring the diameter of a normal blood vessel based on a large measurement sphere, the blood vessel diameter can be measured with higher accuracy. In addition, the above-mentioned blood flow channel can alleviate the trouble and the pain of the blood flow shortage of the patient during the measurement of the blood vessel diameter.
【００１０】一方、前記の計測板体構造のものは、前記
計測球体構造のものと同様に、血管内抵抗による変形が
なく、かつ、血流路が確保できるので、計測精度が向上
すると共に、血流路確保によるメリット作用がある。さ
らに、この計測板体構造のものは、板体幅の大なるサイ
ズと板体厚さの小なるサイズの二様サイズが活用できる
（計測板材が血管内挿入状態で体外に出ているワイヤ端
を操作することによって、計測板体の軸方向を交換操作
することができる）ので、前記大小二球の球体構造のも
のと同様に、血管狭塞の症状によって、前記大小二様サ
イズを基準とする高精度計測が可能になる、そして、本
発明の血管径計測用ワイヤは、カテーテルの血管内挿入
のガイド部材として使用される公知のカテーテル用ガイ
ドワイヤと、ワイヤ体が同一であることから、前記の血
管径計測用のみではなく、公知の医療用ガイドワイヤと
して使用可能の多機能性が存在する。On the other hand, the measurement plate structure has no deformation due to intravascular resistance and can secure a blood flow path similarly to the measurement spherical structure, so that measurement accuracy is improved and There is a merit effect by securing the blood flow path. In addition, the measurement plate structure can be used in two sizes, ie, a large plate width and a small plate thickness (the wire ends that are outside the body when the measurement plate material is inserted into the blood vessel). By operating, the axial direction of the measurement plate can be exchanged, so that, similar to the spherical structure of the large and small two spheres, the size of the large and small two-dimensional is based on the symptom of vascular obstruction. High-precision measurement becomes possible, and the blood vessel diameter measurement wire of the present invention is the same as a known catheter guide wire used as a guide member for catheter intravascular insertion, since the wire body is the same. There is multifunctionality that can be used not only for the above-mentioned blood vessel diameter measurement but also as a known medical guidewire.
【００１１】[0011]
【発明の実施の形態】本発明の血管径計測用ワイヤは、
以下の実施形態または実施例のように実施される。即
ち、まず、前記計測球体構造の第一実施例を示す図１を
参照して、本発明の血管径計測用ワイヤ１は、約１，８
００粍長の可撓性極細ステンレス製のワイヤ体２が主要
部を構成し、このワイヤ体２のワイヤ先端部５に続いて
放射線不透過材（この実施例のものは白金・タングステ
ン合金）からなる小球真球体の計測球体３を固着した構
造を有している。DESCRIPTION OF THE PREFERRED EMBODIMENTS The blood vessel diameter measuring wire of the present invention
It is implemented as in the following embodiments or examples. That is, first, referring to FIG. 1 showing the first embodiment of the measurement sphere structure, the wire 1 for measuring a blood vessel diameter of the present invention is approximately 1,8.
The main body is a wire body 2 made of a flexible ultrafine stainless steel having an abrasion length, and is made of a radiopaque material (a platinum-tungsten alloy in this embodiment) following a wire tip 5 of the wire body 2. It has a structure in which the measurement sphere 3 of a true sphere is fixed.
【００１２】詳しくは、計測球体３は真円球体にして直
径方向にワイヤ体２を貫通挿着して「ロー付け９」によ
ってワイヤ体２に固着されると共に、その真円球面をワ
イヤ体２の先端方向に臨ませている。そして、計測球体
３の前方に突き出すワイヤ先端部５は、複雑に屈曲分岐
する血管への先導進行を円滑にするために、ワイヤ体２
にコイルばね７・８を外嵌して先端に先丸頭６を備え、
応分の可撓性と曲げ剛性が付与されている。More specifically, the measuring sphere 3 is a perfect circular sphere, the wire 2 is pierced and inserted in the diameter direction, and is fixed to the wire 2 by "brazing 9". Facing toward the tip of The wire tip 5 protruding forward of the measurement sphere 3 is used to smoothly advance the blood vessel that is bent and branched in a complicated manner.
, Coil springs 7 and 8 are fitted to the outside, and the tip is provided with a rounded head 6.
Some flexibility and bending rigidity are provided.
【００１３】なお、この実施例のものは、ワイヤ体２の
直径Ｄ４が約０．２粍、計測球体３の直径Ｄ１が１．５
〜２．０粍、ワイヤ先端部５の長さＬが５０粍の寸法諸
元にして、ワイヤ先端部５に外嵌するコイルばねはコイ
ルピッチ間空隙を有する高可撓性にして放射線不透過材
からなる前方コイルばね７とコイルを密着巻きして適度
の剛性を有するステンレス材の後方コイルばね８の直列
構成であり、さらに、ワイヤ体２の後端部分はワイヤ体
２を血管内に挿入したとき体外に出して血管径計測用ワ
イヤ１を操作する太目線径のワイヤ操作部４に形成され
ている。In this embodiment, the diameter D4 of the wire 2 is about 0.2 mm, and the diameter D1 of the measuring sphere 3 is 1.5.
A coil spring which is fitted around the wire tip 5 is highly flexible and has a gap between coil pitches and is radiopaque. It is a series configuration of a front coil spring 7 made of a material and a rear coil spring 8 made of stainless steel having a moderate rigidity by tightly winding a coil, and a rear end portion of the wire body 2 inserts the wire body 2 into a blood vessel. It is formed on a wire operation unit 4 having a thick wire diameter for taking out of the body and operating the blood vessel diameter measurement wire 1 when the user performs the operation.
【００１４】そして、以上の血管径計測用ワイヤ１は、
ワイヤ先端部５から患者の血管１１へ挿入すると共に、
後端のワイヤ操作部４を体外に出してセットし、計測球
体３を患者の冠動脈の狭塞部位１０に到達させる。そし
て、その状態において体外からの放射線と血管内へ注入
した造影剤によって狭塞部位１０と計測球体３の相対的
形状・サイズを体外から把握すると共に、計測球体３の
直径Ｄ１を基準として狭塞部位１０の狭塞直径Ｄ３と非
狭塞の正常血管径Ｄ２を算定把握するようになってい
る。The above-described blood vessel diameter measuring wire 1 is
While being inserted into the blood vessel 11 of the patient from the wire tip 5,
The wire operating unit 4 at the rear end is set out of the body, and the measurement sphere 3 reaches the narrowed area 10 of the coronary artery of the patient. Then, in this state, the relative shape and size of the narrowed portion 10 and the measurement sphere 3 are grasped from outside the body by the radiation from outside the body and the contrast agent injected into the blood vessel, and the blockage is performed based on the diameter D1 of the measurement sphere 3. The stenosis diameter D3 of the site 10 and the normal blood vessel diameter D2 of the non-occlusion are calculated and grasped.
【００１５】以上の図１実施例の血管径計測用ワイヤ１
は前記の作用があり、計測球体３は血管内抵抗に耐え得
る剛性を有するので、狭塞部位１０へ達した状態におい
て常に正常な形状・サイズを確保すると共に、体外から
の全方位的投影アングルにおいても正常な球体直径Ｄ１
が一定して把握できるので、そのＤ１を基準数値として
狭塞血管径Ｄ３と、正常血管径Ｄ２を高精度に把握する
ことができる。さらに、ワイヤ体２が公知の医療用ガイ
ドワイヤと共通形状を有するので、カテーテルを血管内
へ挿入するときのガイドワイヤとしても有効に利用でき
る。The above-described wire 1 for measuring a blood vessel diameter according to the embodiment shown in FIG.
Has the above-mentioned effect, and the measurement sphere 3 has rigidity enough to withstand intravascular resistance, so that it always maintains a normal shape and size in the state where it reaches the occlusive site 10, and has an omnidirectional projection angle from outside the body. Normal sphere diameter D1
Can be grasped in a fixed manner, so that the strictly obstructed blood vessel diameter D3 and the normal blood vessel diameter D2 can be grasped with high accuracy, using D1 as a reference numerical value. Further, since the wire body 2 has a common shape with a known medical guide wire, it can be effectively used as a guide wire when a catheter is inserted into a blood vessel.
【００１６】続いて、図２・図３・図４を参照して本発
明の計測球体構造の血管径計測用ワイヤ１の他の実施形
態を説明する。即ち、まず図２のものは計測球体３が大
なる直径の計測球体３Ａと小なる直径の計測球体３Ｂの
二個直列組合せにして、小なる直径の計測球体３Ｂがワ
イヤ先端部５寄りに配列されている。そして、狭塞部位
１０の狭塞度が大なるときは小なる直径の３Ｂ、狭塞度
が小なるときは大なる直径３Ａを、それぞれ基準球体に
して計測したり、正常な血管直径Ｄ２に近い「大なる直
径の３Ａ」によって、血管直径Ｄ２を計測するようにな
っている。この図２実施形態のものによると、基準とな
る計測球体３と計測すべき血管径を相対的に近づけるこ
とができるので、計測精度が一段と向上する。Next, another embodiment of the blood vessel diameter measuring wire 1 of the measuring spherical structure of the present invention will be described with reference to FIGS. 2, 3 and 4. FIG. That is, first, in FIG. 2, the measuring sphere 3 is a two-piece combination of a measuring sphere 3A having a large diameter and a measuring sphere 3B having a small diameter, and the measuring spheres 3B having a small diameter are arranged near the wire tip 5. Have been. Then, when the degree of stenosis of the stenosis site 10 is large, the small diameter 3B is used, and when the degree of stenosis is small, the large diameter 3A is used as a reference sphere. The blood vessel diameter D2 is measured by the close "large diameter 3A". According to the embodiment of FIG. 2, the measurement sphere 3 serving as a reference can be relatively close to the diameter of the blood vessel to be measured, so that the measurement accuracy is further improved.
【００１７】続いて、図３は計測球体３の他の形態が示
してあり、計測球体３は貫通したワイヤ体２と直交する
方向の横断面が真円形を呈し、かつ、先丸形状であれば
機能することができるので、前記実施例の真円球以外の
図示例示の半円球体３Ｃまたは長円型球体３Ｄ、或は砲
弾型球体３Ｅであっても良く、半円球体３Ｃにすると容
積半減による放射線不透過材のコスト節減ができる。FIG. 3 shows another embodiment of the measuring sphere 3. The measuring sphere 3 may have a true circular cross section in a direction perpendicular to the penetrating wire 2 and a rounded tip. Since it can function, it may be a semicircular sphere 3C, an elliptical sphere 3D, or a shell-shaped sphere 3E shown in the drawings other than the perfect circular sphere of the above-described embodiment. The cost of the radiopaque material can be reduced by halving.
【００１８】一方、図４のものは真円球体または半円球
体の計測球体３に、ワイヤ体２を受け入れるワイヤ挿入
スロット１２を設けた構造からなり、このワイヤ挿入ス
ロット１２の底にワイヤ体２を貫挿入して固着すると共
に、そのワイヤ体２の上縁から球体外周に至り、かつ、
球体の前後方向に貫通するワイヤ挿入スロット１２の上
半部分の空所を血流路とする構造を有している。この図
４実施形態のものは血管径計測時の血流が確保できるの
で、血流不足による治療上のトラブルと患者の苦痛が緩
和・防止できる。On the other hand, the one shown in FIG. 4 has a structure in which a wire insertion slot 12 for receiving the wire 2 is provided on a measurement sphere 3 of a perfect sphere or a hemisphere. Through the wire body 2 to the outer periphery of the sphere, and
It has a structure in which a space in the upper half of the wire insertion slot 12 penetrating in the front-back direction of the sphere is used as a blood flow path. In the embodiment of FIG. 4, the blood flow at the time of measuring the blood vessel diameter can be secured, so that the treatment trouble and the pain of the patient due to the insufficient blood flow can be alleviated or prevented.
【００１９】続いて、図５を参照して本発明の計測板体
構造の血管径計測用ワイヤ１の一実施形態を説明する。
即ち、図１実施例のものと同一のワイヤ体２からなるも
のにおいて、前記の計測球体３に代えて、長円型形状に
して放射線不透過材からなる計測板体１３が装着され、
ワイヤ体２は計測板体１３の長径軸心１４に沿って沿設
固着されている。そして、同じく血管内へ挿入した計測
板体１３のサイズを基準として狭塞部位１０の狭塞血管
径Ｄ３と正常血管径Ｄ２を計測するようになっている。
この図５の実施形態のものは、計測板体１３の板厚Ｔと
板幅Ｗの大小二様サイズを基準サイズとすることができ
るので、ワイヤ操作部４の操作によって計測板体１３の
軸方向変換ができるワイヤステアリング性をワイヤ体２
に確保しておくことによって、前記の大小二個の計測球
体３Ａ・３Ｂからなるものと同一の作用が期待できる。Next, an embodiment of a blood vessel diameter measuring wire 1 having a measuring plate structure according to the present invention will be described with reference to FIG.
That is, in the one made of the same wire body 2 as that of the embodiment of FIG. 1, a measurement plate 13 made of a radiopaque material in an elliptical shape is mounted instead of the measurement sphere 3,
The wire 2 is fixed along the major axis 14 of the measuring plate 13. Then, based on the size of the measurement plate 13 similarly inserted into the blood vessel, the narrowed blood vessel diameter D3 and the normal blood vessel diameter D2 of the narrowed portion 10 are measured.
In the embodiment of FIG. 5, the size of the measurement plate 13 can be set as a reference size based on the plate thickness T and the plate width W. Therefore, the axis of the measurement plate 13 is operated by operating the wire operation unit 4. Wire body 2 that can change direction
In this case, the same action as that of the two large and small measurement spheres 3A and 3B can be expected.
【００２０】なお、この計測板体１３は血管内へ円滑に
挿入できる先丸形状と、異なるサイズの板厚と板幅を有
する板体であれば機能できるので、図６例示のように、
真円型の計測板体１３Ａまたは先丸後方形の計測板体１
３Ｂ・１３Ｃ等であっても良い。The measuring plate 13 can function as long as it has a rounded tip shape that can be smoothly inserted into a blood vessel and a plate having a different thickness and width, as shown in FIG.
13 A of perfect circular measuring plate or measuring plate 1 of rounded back shape
3B, 13C, etc.
【００２１】[0021]
【発明の効果】以上の説明のとおり、本発明の血管径計
測用ワイヤは、血管狭塞部位の治療に際する狭塞血管径
・正常血管径の高精度計測把握が可能になり、その血管
径計測値に基づいて適正な治療用バルーン・金属網状筒
体の選択ができるので、当該治療効果の一段の向上を図
る効果がある。As described above, the blood vessel diameter measuring wire of the present invention enables highly accurate measurement and grasp of the narrowed blood vessel diameter and the normal blood vessel diameter at the time of treatment of a blood vessel narrowed area. Since a proper treatment balloon / metal net-like tubular body can be selected based on the diameter measurement value, there is an effect of further improving the treatment effect.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明の計測球体構造の血管径計測用ワイヤの
第一実施例を示し、（Ａ）はその全体正面図、（Ｂ）は
その計測球体の横断面図、（Ｃ）はその使用方法の説明
図1A and 1B show a first embodiment of a blood vessel diameter measuring wire having a measuring sphere structure of the present invention, wherein FIG. 1A is an overall front view, FIG. 1B is a cross-sectional view of the measuring sphere, and FIG. Illustration of how to use
【図２】本発明の計測球体構造の血管径計測用ワイヤの
他の実施形態を示し、（Ａ）（Ｂ）ともその部分正面図
と使用方法の説明図FIG. 2 shows another embodiment of a blood vessel diameter measuring wire having a measuring spherical structure according to the present invention, wherein FIGS.
【図３】本発明の計測球体構造の血管径計測用ワイヤの
計測球体の他の形状態様を示す斜視図FIG. 3 is a perspective view showing another shape aspect of the measurement sphere of the blood vessel diameter measurement wire of the measurement sphere structure of the present invention.
【図４】本発明の計測球体構造の血管径計測用ワイヤの
他の実施形態を示し、（Ａ）（Ｂ）はその計測球体部分
の斜視図、（Ｃ）はその計測球体の横断面図4A and 4B show another embodiment of a blood vessel diameter measuring wire having a measuring sphere structure according to the present invention, in which (A) and (B) are perspective views of the measuring sphere portion, and (C) is a cross-sectional view of the measuring sphere.
【図５】本発明の計測板体構造の血管径計測用ワイヤの
一実施形態を示し、（Ａ）はその平面図、（Ｂ）はその
計測板体部分の正面図、（Ｃ）はその計測板体の横断面
図、（Ｄ）はその使用方法の説明図5A and 5B show one embodiment of a blood vessel diameter measuring wire having a measurement plate structure according to the present invention, wherein FIG. 5A is a plan view, FIG. 5B is a front view of the measurement plate portion, and FIG. Cross-sectional view of the measuring plate, (D) is an explanatory view of how to use it
【図６】本発明の計測板体構造の血管径計測用ワイヤの
計測板体の他の形状態様の平面図FIG. 6 is a plan view of another shape aspect of the measurement plate body of the blood vessel diameter measurement wire of the measurement plate structure of the present invention.
【図７】従来の血管径計測用カテーテルを示し、（Ａ）
はその先端部分の正面図、（Ｂ）はその使用状態の説明
図、（Ｃ）はそのソフトチップの形状変化を示す斜視図FIG. 7 shows a conventional blood vessel diameter measuring catheter, and (A)
Is a front view of the tip portion, (B) is an explanatory view of a use state, and (C) is a perspective view showing a shape change of the soft tip.
１ 血管径計測用ワイヤ ２ ワイヤ体 ３ 計測球体 ４ ワイヤ操作部 ５ ワイヤ先端部 ９ ロー付け １０ 血管狭塞部 １１ 血管 １２ ワイヤ挿入スロット １３ 計測板体 １５ 血管径計測用カテーテル １６ ソフトチップ Ｄ１ 計測球体の直径 Ｄ２ 正常な血管径 Ｄ３ 狭塞血管径 REFERENCE SIGNS LIST 1 blood vessel diameter measuring wire 2 wire body 3 measuring sphere 4 wire operating unit 5 wire tip 9 brazing 10 blood vessel narrowing section 11 blood vessel 12 wire insertion slot 13 measuring plate 15 blood vessel diameter measuring catheter 16 soft tip D1 measuring sphere Diameter D2 Normal blood vessel diameter D3 Stenosis blood vessel diameter
Claims (5)
ワイヤ体からなり、該ワイヤ体の先端部分に、横断面真
円の球面を該ワイヤ体の先端方向に臨ませると共に、該
球面の中心に前記ワイヤ体を貫通し、かつ、放射線不透
過材からなる計測球体を固着した構造を特徴とする血管
径計測用ワイヤ。1. A flexible ultra-fine elongated wire body that can be inserted into a blood vessel, and a spherical surface having a perfect circular cross section faces a distal end portion of the wire body toward the distal end of the wire body. A wire for measuring the diameter of a blood vessel, characterized by having a structure in which a measurement sphere made of a radiopaque material is fixedly penetrating the wire at the center of a spherical surface.
径計測用ワイヤ。2. The blood vessel diameter measuring wire according to claim 1, wherein the measuring sphere is a perfect circular sphere.
る径の計測球体の組合せにして、かつ、該小なる径の計
測球体をワイヤ体の先端側に配設した請求項１または請
求項２の血管径計測用ワイヤ。3. The measuring sphere according to claim 1, wherein the measuring sphere has a combination of a measuring sphere having a large diameter and a measuring sphere having a small diameter, and the measuring sphere having a small diameter is disposed on the tip side of the wire. The blood vessel diameter measuring wire according to claim 2.
体を貫通するワイヤ挿入スロットを切設し、該ワイヤ挿
入スロットの底にワイヤ体を挿入着した状態において、
該ワイヤ挿入スロットの上半部分の空所を血流路に構成
した請求項１・請求項２・請求項３のいずれかの血管径
計測用ワイヤ。4. A state in which a wire insertion slot having a depth from the spherical surface to the center of the sphere and penetrating the sphere is cut out, and the wire is inserted and fitted at the bottom of the wire insertion slot.
The blood vessel diameter measuring wire according to any one of claims 1, 2, and 3, wherein a cavity in an upper half portion of the wire insertion slot is configured as a blood flow path.
ワイヤ体からなり、該ワイヤ体の先端部分に、円頭を該
ワイヤ体の先端方向に臨ませると共に、中心軸心に沿っ
て前記ワイヤ体を貫通し、かつ、放射線不透過材からな
る計測板体を固着した構造を特徴とする血管径計測用ワ
イヤ。5. A flexible ultra-fine elongated wire body which can be inserted into a blood vessel, and a tip of the wire body has a circular head facing the distal end of the wire body and extends along a central axis. A wire for measuring the diameter of a blood vessel, wherein the wire is penetrated by the wire body and a measurement plate made of a radiopaque material is fixed thereto.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9185823A JPH119573A (en) | 1997-06-26 | 1997-06-26 | Wire for measuring diameter of blood vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9185823A JPH119573A (en) | 1997-06-26 | 1997-06-26 | Wire for measuring diameter of blood vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH119573A true JPH119573A (en) | 1999-01-19 |
Family
ID=16177511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9185823A Pending JPH119573A (en) | 1997-06-26 | 1997-06-26 | Wire for measuring diameter of blood vessel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH119573A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007530097A (en) * | 2003-07-11 | 2007-11-01 | アルヴィオラス，インコーポレイテッド | Lumen measuring device and method |
| CN102805626A (en) * | 2012-07-29 | 2012-12-05 | 宁波市鄞州青林医疗器械技术咨询有限公司 | Wheel-arc reading type precise measurement instrument for cardiac surgery |
| WO2023053805A1 (en) * | 2021-09-28 | 2023-04-06 | 朝日インテック株式会社 | Guide wire |
-
1997
- 1997-06-26 JP JP9185823A patent/JPH119573A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007530097A (en) * | 2003-07-11 | 2007-11-01 | アルヴィオラス，インコーポレイテッド | Lumen measuring device and method |
| CN102805626A (en) * | 2012-07-29 | 2012-12-05 | 宁波市鄞州青林医疗器械技术咨询有限公司 | Wheel-arc reading type precise measurement instrument for cardiac surgery |
| CN102805626B (en) * | 2012-07-29 | 2014-07-16 | 宁波江东峻峰医疗器械技术咨询有限公司 | Wheel-arc reading type precise measurement instrument for cardiac surgery |
| WO2023053805A1 (en) * | 2021-09-28 | 2023-04-06 | 朝日インテック株式会社 | Guide wire |
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