JPH088932B2 - catheter - Google Patents
catheterInfo
- Publication number
- JPH088932B2 JPH088932B2 JP2231546A JP23154690A JPH088932B2 JP H088932 B2 JPH088932 B2 JP H088932B2 JP 2231546 A JP2231546 A JP 2231546A JP 23154690 A JP23154690 A JP 23154690A JP H088932 B2 JPH088932 B2 JP H088932B2
- Authority
- JP
- Japan
- Prior art keywords
- catheter
- wiring board
- flexible wiring
- flexible
- tube
- 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
Links
Landscapes
- Media Introduction/Drainage Providing Device (AREA)
Description
【発明の詳細な説明】 「産業上の利用分野」 本発明は体液の採取又は薬液の注入に使用する為の医
用カテーテルに関するもので、更に具体的に云えば、本
発明はカテーテルのセンサに接続する布線部材として細
長い可撓性配線基板を用い、この可撓性配線基板をカテ
ーテルのルーメン用チューブ等の外皮に対して実質的に
一体状に埋設する構造を採用し、以って埋設可撓性配線
基板のスプリングアクションと適度な剛直性による好適
な操作制御性及び挿入性の高いカテーテルに関する。TECHNICAL FIELD The present invention relates to a medical catheter for use in collecting body fluids or injecting medical fluids, and more specifically, the present invention connects to a sensor of the catheter. A slender flexible wiring board is used as the wiring member, and the flexible wiring board is embedded substantially integrally with the outer skin of the lumen tube of the catheter. TECHNICAL FIELD The present invention relates to a catheter having a suitable operation controllability and a high insertability due to a spring action of a flexible wiring board and an appropriate rigidity.
「従来技術とその問題点」 この種のカテーテルは、第６図に示すようにカテーテ
ルの先端部に設けたセンサ１と、該センサ１の接続パッ
ド２に個別的に接続部４を電気的に接続した所要本数の
リード線３と、上記センサ１を除く他のリード線３の部
分を隠蔽保護する為の合成樹脂或いはゴム等の可撓性チ
ューブ５とから構成され、上記各リード線３は外部機器
に接続されてセンサ１と信号の授受を行うものであっ
て、生体の各種検査手段として現今多方面に採用されて
いる。"Prior Art and Its Problems" In this type of catheter, as shown in FIG. 6, a sensor 1 provided at the tip of the catheter and a connection portion 4 electrically connected to a connection pad 2 of the sensor 1 are electrically connected. It is composed of a required number of connected lead wires 3 and a flexible tube 5 made of synthetic resin or rubber for concealing and protecting the other lead wires 3 excluding the sensor 1. Each of the lead wires 3 is It is connected to an external device to exchange signals with the sensor 1, and is currently used in various fields as various means for inspecting a living body.
上記の如きカテーテルは、強度を確保する上で一本の
直径が略60μｍ程度の大きさとなるリード線３の複数本
数を可撓性チューブ５に挿入しようとしても、該チュー
ブ５の断面積に比してリード線３の束の占める実質断面
積が大きくなるので、可撓性チューブ５に複数本数のリ
ード線３を挿通配線することは事実上不可能であった。In order to secure strength, the catheter as described above has a diameter of about 60 μm, and even if an attempt is made to insert a plurality of lead wires 3 into the flexible tube 5, the catheter will have a cross-sectional area that is smaller than that of the flexible tube 5. Since the bundle of lead wires 3 occupies a substantial cross-sectional area, it is virtually impossible to insert a plurality of lead wires 3 into the flexible tube 5.
カテーテル用可撓性チューブ５と複数本数のリード線
３とは別体であってこのチューブ５の構成部位の一部と
なるような一体状のものではない為、カテーテルの生体
に対する剛直性乃至は挿入性に効果的に寄与できず、従
って、カテーテルの操作制御性に難点があった。Since the flexible tube 5 for catheter and the plurality of lead wires 3 are separate bodies and are not integrated so as to be a part of the constituent parts of the tube 5, the catheter is not rigid with respect to a living body or It cannot effectively contribute to the insertability, and therefore has a difficulty in controlling the operation of the catheter.
「発明の目的及び構成」 本発明は、センサに接続するための従来の如きリード
線に代えて、これに細長い長尺状の可撓性配線基板をカ
テーテル用可撓性チューブに一体となるように配設する
ことにより、多種類のセンサをも極めてコンパクト且つ
最適状態でカテーテルに装着することができ、また、カ
テーテルの操作制御性乃至は応答性、即ち、ワンツーワ
ン・トルクコントロールの良好なカテーテルを提供する
ものである。"Object and Structure of the Invention" In the present invention, instead of a conventional lead wire for connecting to a sensor, an elongated long flexible wiring board is integrated with a flexible tube for a catheter. By arranging the sensor on the catheter, many kinds of sensors can be mounted on the catheter in an extremely compact and optimal state, and the catheter can be operated and controlled in a responsive manner, that is, one-to-one torque control can be achieved. Is provided.
その為に本発明に係るカテーテルの場合では、体液の
採取又は薬液の注入に用いる為の医用カテーテルに於い
て、カテーテルの挿入端に設けたセンサに電気的に接続
した細長い可撓性の配線基板を備え、該可撓性配線基板
を上記カテーテルの外皮に埋設するように構成したもの
である。Therefore, in the case of the catheter according to the present invention, in a medical catheter for use in collecting a body fluid or injecting a drug solution, an elongated flexible wiring board electrically connected to a sensor provided at the insertion end of the catheter. And the flexible wiring board is embedded in the outer skin of the catheter.
カテーテルの外皮に上記可撓性配線基板を埋設構造と
しては各種の手段を適用できるが、その好ましい態様と
してはカテーテルのルーメン用チューブ外周面にスパイ
ラル状に配設され、このスパイラル状可撓性配線基板の
外面に高血栓性の樹脂性被覆層をスプレー法或いは浸漬
法で設けて可撓性回路基板の上記埋設構造を構成する
か、又はカテーテルのルーメン用チューブ外周面の長手
方向に直線状に配設され、該直線状可撓性配線基板の外
面に上記の如き樹脂性被覆層を設けることにより該可撓
性回路基板の上記埋設構造を構成することも出来る。Various means can be applied as a structure for embedding the flexible wiring board in the outer skin of the catheter, and in a preferred embodiment, the flexible wiring board is spirally arranged on the outer peripheral surface of the lumen tube of the catheter. A highly thrombotic resinous coating layer is provided on the outer surface of the substrate by a spray method or a dipping method to form the above-mentioned embedded structure of the flexible circuit board, or a linear shape is formed in the longitudinal direction of the outer circumferential surface of the lumen tube of the catheter. The embedded structure of the flexible circuit board can be configured by disposing the resinous coating layer as described above on the outer surface of the linear flexible wiring board.
更に、カテーテルのルーメン用チューブの押出し成形
時に該チューブの外皮中に同時的にスパイラル状又は直
線状に一体状に埋設するようなチューブと一体的な埋設
構造も構成可能である。Further, an embedding structure integrated with a tube that is simultaneously and integrally embedding in a spiral or linear shape in the outer skin of the tube during extrusion molding of the lumen tube of the catheter can be configured.
「実施例」 以下、図示の実施例を参照しながら本発明を更に詳述
する。第１図は本発明に係るカテーテルの概念的な部分
切欠拡大構成図であって、６はカテーテルの全体を示
し、その一端には各種のセンサ10を備えると共に、他端
には体液又は薬液等の導入出端部11の所要個数と、セン
サ10を外部の機器に電気的に接続する為の接続端子部12
とを具備している。７は第２図にも示す如く体液又は薬
液等の導入出路の為のルーメン7Aを内部に形成したルー
メン用可撓性チューブを示すものであり、該チューブの
材質としてはテフロン、塩化ビニール又は高密度ポリエ
チレン、４フッ化エチレン等を使用することが出来る。
８は上記可撓性チューブ７にスパイラル状に巻付けた細
長い可撓性の配線基板であって、上記センサ10と端子部
12との間の必要な電気的接続を行う為の従来のリード線
に代えて使用されている。９は該可撓性配線基板８の外
面を被覆する為に可撓性チューブ７の上に更に設けたジ
ャケットとしての抗血栓性に富むポリウレタン等の被覆
層を示し、この外皮被覆層９は例えば東洋紡（株）製の
TM-3又はダウケミカル社製のペレセン＃2363の如きポリ
ウレタンエラストマーのドープをスプレー法や浸漬法等
の手法で可撓性チューブ７に塗布して形成することが出
来る。なお、可撓性配線基板８は第３図のとおり、ルー
メン用の可撓性チューブとなる上記同様の材質からなる
外皮13中に押出し成形法で既述の如き可撓性配線基板８
の為の一体的な埋設構造を構成することも勿論自在であ
る。[Examples] Hereinafter, the present invention will be described in more detail with reference to the illustrated examples. FIG. 1 is a conceptual partial cutaway enlarged configuration view of a catheter according to the present invention, in which reference numeral 6 shows the entire catheter, which is provided with various sensors 10 at one end thereof and a body fluid or a drug solution at the other end thereof. The required number of lead-in / out end portions 11 of the and the connection terminal portion 12 for electrically connecting the sensor 10 to an external device.
Is provided. Reference numeral 7 shows a flexible tube for a lumen in which a lumen 7A for introducing and discharging a body fluid or a chemical solution is formed as shown in FIG. 2, and the material of the tube is Teflon, vinyl chloride or high Density polyethylene, tetrafluoroethylene and the like can be used.
Reference numeral 8 denotes an elongated flexible wiring board spirally wound around the flexible tube 7, and includes the sensor 10 and a terminal portion.
It is used in place of the conventional leads for making the necessary electrical connections between the 12 and. Reference numeral 9 denotes a coating layer of polyurethane or the like having a high antithrombogenic property as a jacket further provided on the flexible tube 7 for coating the outer surface of the flexible wiring board 8. The outer coating layer 9 is, for example, Manufactured by Toyobo Co., Ltd.
It can be formed by applying a dope of a polyurethane elastomer such as TM-3 or Peresen # 2363 manufactured by Dow Chemical Company to the flexible tube 7 by a method such as a spray method or a dipping method. As shown in FIG. 3, the flexible wiring board 8 is extruded into the outer skin 13 made of the same material as the flexible tube for the lumen, and the flexible wiring board 8 as described above is used.
Of course, it is of course possible to form an integral buried structure for the purpose.
可撓性配線基板８はフォトリソグラフィ手法等の採用
により適宜構成可能ではあるが、その幅の狭さと相当な
長さを有する外形形状であることから、現有製造装置を
以っては本発明の目的とするカテーテル用の可撓性配線
基板を構成することは一般的には困難である。その為、
本案の場合では斯かる可撓性配線基板８を形成するに際
し図示しないが好ましくはスパイラル状に構成可能な可
撓性の配線基板原形体を例えば所要の大きさの薄目の可
撓性銅張積層板素材に対して予め多数個形成しておくの
が有利であり、その配線基板原形体としては上記スパイ
ラル状のものに限らず、その他の矩形若しくは方形又は
楕円形状等の任意の限定された領域に所要の製品形状の
可撓性配線基板８をスパイラル状に一括集中的に形成
し、その配線基板原形体を構成後、所要の配線パターン
を含む製品外形線に沿いエキシマレーザ等の手段で適宜
分離処理してスパイラル状に展開伸長することにより、
所要長の可撓性配線基板８を製作するのが好ましい。Although the flexible wiring substrate 8 can be appropriately configured by adopting a photolithography technique or the like, since it has an outer shape having a narrow width and a considerable length, the existing manufacturing apparatus can be used for the flexible wiring substrate 8 of the present invention. It is generally difficult to construct a flexible wiring board for an intended catheter. For that reason,
In the case of the present invention, when forming such a flexible wiring board 8, although not shown, a flexible wiring board prototype which can be preferably configured in a spiral shape is formed, for example, on a thin flexible copper clad laminate of a required size. It is advantageous to preliminarily form a large number of plate materials, and the wiring board prototype is not limited to the above spiral shape, but any other limited area such as a rectangle, a square, or an ellipse. Then, the flexible wiring board 8 having a required product shape is collectively and collectively formed in a spiral shape, and after forming the wiring board prototype, it is appropriately arranged by means such as an excimer laser along a product outline including a required wiring pattern. By separating and expanding and expanding in a spiral shape,
It is preferable to manufacture the flexible wiring board 8 having a required length.
また、第１図及び第２図のスパイラル状可撓性配線基
板８を一体構造に埋設したカテーテル６の構成の他、そ
のスパイラル状可撓性配線基板８を第４図及び第５図の
とおり、ルーメン用の可撓性チューブ７の長手方向外周
に沿って既述の埋設法を採用して直線状に配設した可撓
性配線基板14にに形成することも可能であり、この一体
状に埋設すべき直線状の可撓性配線基板14のルーメン用
可撓性チューブ７に対する配設本数はセンサ10の機能或
いは個数等を加味して適数本に設定することも可能であ
る。従って、上記の如き可撓性の配線基板にルーメン用
可撓性チューブ７に対する配設態様は、既述のようなカ
テーテル外皮の為の塗布成形法又は一体押出し成形法を
も含め、本案のカテーテルに於ける操作制御性乃至は応
答性、即ち、ワンツーワン・トルクコントロールを良好
化可能な剛直性を確保できる構造を導出可能なものであ
ればその他の一体状埋設構造も採用できる。In addition to the configuration of the catheter 6 in which the spiral flexible wiring board 8 of FIGS. 1 and 2 is embedded in an integral structure, the spiral flexible wiring board 8 is as shown in FIGS. 4 and 5. It is also possible to form it on the flexible wiring board 14 that is linearly arranged along the outer circumference in the longitudinal direction of the flexible tube 7 for lumen by adopting the above-mentioned embedding method. The number of linear flexible wiring boards 14 to be embedded in the lumen flexible tube 7 can be set to an appropriate number in consideration of the function or number of the sensors 10. Therefore, the arrangement of the flexible wiring board for the lumen flexible tube 7 on the flexible wiring board as described above includes the coating molding method or the integral extrusion molding method for the outer skin of the catheter as described above. Other integral embedding structure can be adopted as long as it is possible to derive a structure capable of ensuring the operation controllability or responsiveness, that is, the rigidity capable of improving one-to-one torque control.
「発明の効果」 本発明に係るカテーテルは以上のとおり、体液の採取
又は薬液の注入に用いる為の医用カテーテルに於いて、
カテーテルの挿入端に設けたセンサに電気的に接続した
細長い可撓性の配線基板を備え、該可撓性配線基板を上
記カテーテルの外皮に埋設するように構成したものであ
り、該外皮に対する可撓性配線基板の一体的埋設構造と
しては好ましくはカテーテルのルーメン用チューブ外周
面にスパイラル状に配設され、該スパイラル状可撓性配
線基板の外面に抗血栓性の樹脂性被覆層をスプレー法或
いは浸漬法等の採用により設けて該可撓性配線基板の上
記埋設構造を構成するか、又はカテーテルのルーメン用
チューブ外周面の長手方向に直線状に配設され、該直線
状可撓性配線基板の外面に上記の如き樹脂性被覆層を被
着するように構成可能であるので、少なくとも次の効果
を奏する。"Effects of the Invention" As described above, the catheter according to the present invention is a medical catheter for use in collecting body fluid or injecting a drug solution,
An elongated flexible wiring board electrically connected to a sensor provided at the insertion end of the catheter is provided, and the flexible wiring board is embedded in the outer skin of the catheter. The flexible wiring board is preferably integrally embedded in the outer circumference of the lumen tube of the catheter in a spiral shape, and an antithrombogenic resin coating layer is sprayed on the outer surface of the spiral flexible wiring board. Alternatively, it is provided by adopting an immersion method or the like to form the embedded structure of the flexible wiring board, or is arranged linearly in the longitudinal direction of the outer peripheral surface of the lumen tube of the catheter, and the linear flexible wiring is provided. Since the resinous coating layer as described above can be formed on the outer surface of the substrate, at least the following effects can be obtained.
多種類のセンサをカテーテルに設ける必要のある場合
でも本発明の可撓性配線基板の一体的埋設構造の採用に
より最適に実現できる。Even when it is necessary to provide various kinds of sensors on the catheter, it can be optimally realized by adopting the integrally embedded structure of the flexible wiring board of the present invention.
本発明による上記の如き可撓性配線基板の一体的埋設
構造の適用は、従来のリード線を使用した布線手段と異
なり、その埋設可撓性配線基板に於けるセンサとの接続
部に工夫を加えることによって多種類のセンサをカテー
テル先端部にマイクロ化して装着することが可能とな
る。The application of the above-mentioned integrated embedding structure of the flexible wiring board according to the present invention is different from the conventional wiring means using the lead wire, and is devised in the connecting portion with the sensor in the embedding flexible wiring board. It becomes possible to attach various kinds of sensors to the tip of the catheter by adding them.
本発明のカテーテルによれば、従来法のようなワイヤ
ーブレード等の弾性体をカテーテル外皮に挿入するが如
き手段と相違して、細長い可撓性の配線基板をカテーテ
ルの外皮中に一体状に埋設できるので、操作制御性乃至
は応答性、換言すればワンツーワン・トルクコントロー
ルを良好に確保可能な剛直性を簡便に構成できる。According to the catheter of the present invention, unlike the conventional method in which an elastic body such as a wire blade is inserted into the outer skin of the catheter, a slender flexible wiring board is integrally embedded in the outer skin of the catheter. Therefore, the operation controllability or responsiveness, in other words, the rigidity capable of ensuring good one-to-one torque control can be easily configured.
第１図は本発明の一実施例に従ってルーメン用可撓性チ
ューブ外周面に細長い可撓性配線基板をスパイラル状に
巻付けてカテーテルの外皮と一体に構成されたカテーテ
ルの概念的な部分切欠拡大構成図、 第２図はその要部拡大断面構成図であり、 第３図はカテーテルの外皮を押出し成形する際に上記と
同様に可撓性配線基板をスパイラル状にルーメン用可撓
性チューブ外周面に同時に埋設するように構成した本発
明の他の実施例による同様なカテーテルの概念的な部分
切欠拡大構成図、 第４図は本発明の更に他の実施例に従ってルーメン用可
撓性チューブ外周面の長手方向に細長い可撓性配線基板
を直線状に配設してカテーテルの外皮と一体に構成され
たカテーテルの概念的部分切欠拡大構成図、 第５図はその要部拡大断面構成図、そして、 第６図はリート線を用いてセンサをカテーテル先端部に
配装するように構成した従来構造に従ったカテーテルの
概念的な要部拡大構成図である。 ６……カテーテル、７……ルーメン用可撓性チューブ、
7A……ルーメン、８……可撓性の配線基板、９……ジャ
ケット用被覆層、10……センサ、11……薬液等導入出端
部、12……接続端子部、13……外皮、14……直線状可撓
性配線基板。FIG. 1 is a conceptual partial notch enlargement of a catheter integrally formed with the outer skin of a catheter by spirally winding an elongated flexible wiring board around the outer surface of a flexible tube for lumen according to an embodiment of the present invention. FIG. 2 is an enlarged cross-sectional configuration diagram of the main part of the configuration, and FIG. 3 is a perspective view of the flexible tube for the lumen in which the flexible wiring board is spirally formed in the same manner as above when the outer cover of the catheter is extruded. FIG. 4 is an enlarged schematic view of a partial cutaway view of a similar catheter according to another embodiment of the present invention configured to be simultaneously embedded in a surface, and FIG. 4 is a circumference of a flexible tube for a lumen according to still another embodiment of the present invention. FIG. 5 is an enlarged schematic sectional view showing a partial cutaway of a catheter integrally formed with the outer skin of a catheter by arranging a flexible wiring board elongated in the longitudinal direction of the plane, and FIG. And FIG. 6 is an enlarged conceptual view of a main part of a catheter according to a conventional structure in which a sensor is mounted on a catheter tip portion using a lead wire. 6 ... Catheter, 7 ... Flexible tube for lumen,
7A ... lumen, 8 ... flexible wiring board, 9 ... jacket cover layer, 10 ... sensor, 11 ... introducing / exiting end of chemical liquid, 12 ... connecting terminal, 13 ... outer skin, 14: Linear flexible wiring board.
Claims (4)
用カテーテルに於いて、カテーテルの挿入端に設けたセ
ンサに電気的に接続した細長い可撓性の配線基板を備
え、該可撓性配線基板を上記カテーテルの外皮に埋設す
るように構成したことを特徴とするカテーテル。1. A medical catheter for use in collecting a body fluid or injecting a drug solution, comprising an elongated flexible wiring board electrically connected to a sensor provided at an insertion end of the catheter, the flexible catheter comprising: A catheter characterized in that a wiring board is embedded in the outer skin of the catheter.
メン用チューブ外周面にスパイラル状に配設され、この
スパイラル状可撓性配線基板の外面に樹脂性被覆層を設
けて該可撓性回路基板の上記埋設構造を構成した請求項
（１）のカテーテル。2. The flexible wiring board is spirally arranged on an outer peripheral surface of a lumen tube of a catheter, and a resinous coating layer is provided on an outer surface of the spiral flexible wiring board. The catheter according to claim 1, wherein the embedded structure of the circuit board is formed.
メン用チューブ外周面の長手方向に直線状に配設され、
この直線状可撓性配線基板の外面に樹脂性被覆層を設け
て該可撓性回路基板の上記埋設構造を構成した請求項
（１）のカテーテル。3. The flexible wiring board is linearly arranged in a longitudinal direction of an outer peripheral surface of a lumen tube of a catheter,
The catheter according to claim (1), wherein a resinous coating layer is provided on the outer surface of the linear flexible wiring board to form the embedded structure of the flexible circuit board.
メン用チューブの成形時に該チューブの外皮中にスパイ
ラル状又は直線状に一体的に埋設することによって該可
撓性回路基板の上記埋設構造を構成した請求項（１）の
カテーテル。4. The embedding structure of the flexible circuit board by integrally embedding the flexible wiring board in a spiral shape or a linear shape integrally in an outer skin of the tube when forming a lumen tube of a catheter. The catheter according to claim 1, which comprises:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2231546A JPH088932B2 (en) | 1990-08-31 | 1990-08-31 | catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2231546A JPH088932B2 (en) | 1990-08-31 | 1990-08-31 | catheter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04109962A JPH04109962A (en) | 1992-04-10 |
| JPH088932B2 true JPH088932B2 (en) | 1996-01-31 |
Family
ID=16925194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2231546A Expired - Lifetime JPH088932B2 (en) | 1990-08-31 | 1990-08-31 | catheter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH088932B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002537885A (en) * | 1999-03-03 | 2002-11-12 | エンドソニックス・コーポレーション | Elongated flexible member with one or more electrical contacts |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2504613C (en) * | 2002-11-18 | 2012-01-31 | Mediguide Ltd. | Method and system for mounting an mps sensor on a catheter |
-
1990
- 1990-08-31 JP JP2231546A patent/JPH088932B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002537885A (en) * | 1999-03-03 | 2002-11-12 | エンドソニックス・コーポレーション | Elongated flexible member with one or more electrical contacts |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04109962A (en) | 1992-04-10 |
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