JPS6124020B2 - - Google Patents
Info
- Publication number
- JPS6124020B2 JPS6124020B2 JP57044479A JP4447982A JPS6124020B2 JP S6124020 B2 JPS6124020 B2 JP S6124020B2 JP 57044479 A JP57044479 A JP 57044479A JP 4447982 A JP4447982 A JP 4447982A JP S6124020 B2 JPS6124020 B2 JP S6124020B2
- Authority
- JP
- Japan
- Prior art keywords
- catheter
- puncture needle
- protective tube
- knife
- holding device
- 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
- 230000001681 protective effect Effects 0.000 claims description 34
- 210000003462 vein Anatomy 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims description 7
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 239000003814 drug Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 229920002457 flexible plastic Polymers 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Description
【発明の詳細な説明】
本発明は、主に心臓入口付近の中心静脈へ挿入
するためのカテーテルの定置装置に関し、特に体
外から静脈内へカテーテルを導入するための穿刺
針をカテーテル定置完了後、切断除去できるナイ
フを有するカテーテル定置装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for placing a catheter mainly for insertion into a central vein near the entrance of the heart, and in particular, for inserting a puncture needle into a vein from outside the body into a vein after the catheter is placed. The present invention relates to a catheter placement device having a removable knife.
従来知られている静脈カテーテルの定置方法や
装置としては種々なものが考案されているが、最
も一般的なカテーテル定置装置としては、可撓プ
ラスチツク管のカテーテル、薬液等の注入装置と
接続するためのカテーテル後端部に設けられた接
続装置および金属製あるいはプラスチツク製の管
状の穿刺針からなり、カテーテルは穿刺針の中空
部を通つて体外から静脈内へ挿入されるが、カテ
ーテルの定置操作後、穿刺針を静脈から抜いた
後、穿刺針がカテーテル後端部の接続装置により
カテーテルから抜き去ることができず、カテーテ
ル留置中は、定置操作で使用した穿刺針をカテー
テルに被せたままとなる欠点を有し、特に長期に
カテーテルを留置する場合は問題であつた。 Various conventional methods and devices for placing intravenous catheters have been devised, but the most common catheter placement devices include catheters made of flexible plastic tubes, and catheters for connecting to injection devices for drug solutions, etc. The catheter consists of a connecting device installed at the rear end of the catheter and a tubular puncture needle made of metal or plastic.The catheter is inserted into the vein from outside the body through the hollow part of the puncture needle, but after the catheter is placed in place. After the puncture needle is removed from the vein, the puncture needle cannot be removed from the catheter due to the connection device at the rear end of the catheter, and the puncture needle used for stationary operation remains over the catheter while the catheter is indwelling. It has drawbacks, especially when the catheter is left in place for a long period of time.
さらに上記のカテーテルは、カテーテル自体を
直接手で持つて定置操作を行なうこととなり、カ
テーテルの無菌状態を保つことが困難であるとい
う欠点を有していた。この欠点を改善するために
従来ある種の装置は、定置操作中カテーテルに無
菌状態を維持させるために、柔軟な透明袋の中に
カテーテルを容れ、穿刺針を通して、該透明袋の
上からカテーテルを手で操作するのであるが、こ
の透明袋を介しての操作はやりにくいばかりでな
く、カテーテルを定置操作前に注入装置と接続し
得ないという難点を有していた。 Furthermore, the above-mentioned catheter has the disadvantage that it is difficult to maintain the sterile state of the catheter because the catheter itself must be held directly in the hand to perform the stationary operation. In order to improve this drawback, some conventional devices have been developed in which the catheter is placed in a flexible transparent bag, and the catheter is inserted from above the transparent bag through a puncture needle in order to maintain the sterile state of the catheter during stationary operation. Although the catheter is manually operated, it is not only difficult to perform the operation through the transparent bag, but also has the disadvantage that the catheter cannot be connected to the injection device before the operation is performed in place.
この問題を改善するために、カテーテル定置操
作時に無菌状態を維持し、かつ定置操作性を向上
させたものとして、穿刺針である管状針と長手方
向の分離線を有し、管状針の根元に係合され、中
にカテーテルを容れた密閉被覆を有する特公昭第
43−20519号に示されたカテーテル定置装置が知
られている。しかし、この定置装置において分離
線を有する密閉被覆はあやまつた外力により密閉
が破られる可能性を有するだけでなく、従来のカ
テーテル定置装置と同様に、前記穿刺針である管
状針がカテーテル定置装置から除去し得ないとい
う本質的な欠点を有していた。 In order to improve this problem, in order to maintain sterile conditions and improve the operability of catheter placement, the catheter has a longitudinal separation line from the puncture needle, which is a tubular needle, at the base of the tubular needle. The special public Shodai is engaged and has a hermetic sheath containing a catheter therein.
43-20519 is known. However, in this placement device, not only does the sealing sheath with a separation line have the possibility of breaking the seal due to an incorrect external force, but also, as with conventional catheter placement devices, the tubular needle that is the puncture needle is separated from the catheter placement device. It had the essential drawback that it could not be removed.
上記事情に鑑み、本発明の重要な目的は、カテ
ーテル定置操作後不要となつたプラスチツク製の
穿刺針をカテーテルから切断除去できる構造を有
するカテーテル定置装置を提供する事である。 In view of the above circumstances, an important object of the present invention is to provide a catheter placement device having a structure in which a plastic puncture needle that is no longer needed after catheter placement can be cut and removed from the catheter.
また、上記構造を有することにより可能となる
本発明の別な特徴は、一般にカテーテル定置操作
前にカテーテルを保護するためにカテーテルを保
管しておくためのプラスチツクチユーブの如き特
別な構造を有さない保護チユーブ内のカテーテル
を該チーブを切断することにより、カテーテルに
直接手を触れることなく、穿刺針中空部を通して
定置操作することが可能となることである。 Another feature of the present invention that is made possible by having the above structure is that it generally does not have a special structure such as a plastic tube for storing the catheter to protect it before the catheter placement operation. By cutting the catheter inside the protective tube, it becomes possible to place the catheter in place through the hollow part of the puncture needle without touching the catheter directly.
上記目的は、以下のカテーテル定置装置によつ
て達せられる。すなわち、プラスチツク製の管状
の穿刺針と、その先端で穿刺針と接続する保護チ
ユーブと、該保護チユーブ内にあつて該保護チユ
ーブ先端付近で終わる先端部を有するカテーテル
と、該カテーテル端部に結合された接続装置と、
該穿刺針内を通してカテーテルを該穿刺針外へ進
行させるとき該保護チユーブを切断除去し、かつ
カテーテル定置操作完了にともない該穿刺針を切
断除去するため、カテーテル後端部に設置された
ナイフと該ナイフおよび接続装置を固定し切断時
に該保護チユーブおよび穿刺針をガイドする保持
装置とを有することを特徴とするカテーテル定置
装置である。 The above objects are achieved by the following catheter placement device. That is, a tubular puncture needle made of plastic, a protective tube connected to the puncture needle at its tip, a catheter having a tip disposed within the protective tube and ending near the tip of the protective tube, and coupled to the end of the catheter. a connected device,
In order to cut and remove the protective tube when the catheter is advanced through the puncture needle and out of the puncture needle, and to cut and remove the puncture needle when the catheter placement operation is completed, a knife installed at the rear end of the catheter and a knife installed at the rear end of the catheter are used. This catheter positioning device is characterized by having a holding device that fixes the knife and the connecting device and guides the protective tube and puncture needle during cutting.
以下、本発明を添付図面に示した実施例をもつ
て説明する。第１図は本発明のカテーテル定置装
置の一実施例の外観を示す図で、１はその内部に
ナイフを有する保持装置で、２はカテーテルの保
護チユーブ、３はプラスチツク製のカテーテルを
静脈内に導入するための管状の穿刺針、４はカテ
ーテル後端部に結合され該保持装置によつて固定
された薬液等の注入装置と連結するための接続装
置で、保持装置１を保護チユーブ２に沿つて穿刺
針３の方向へ進めることにより該保護チユーブ２
が切断され該保護チユーブ２の中に容れられたカ
テーテル５が穿刺針３の中空部を通つて外へ進行
する様子を示している。 The present invention will be described below with reference to embodiments shown in the accompanying drawings. FIG. 1 is a diagram showing the appearance of an embodiment of the catheter placement device of the present invention, in which 1 is a holding device having a knife inside, 2 is a protective tube for the catheter, and 3 is a catheter for inserting a plastic catheter into a vein. A tubular puncture needle 4 is connected to the rear end of the catheter and is connected to an injection device for liquid medicine, etc. fixed by the holding device. The protective tube 2 is removed by moving it in the direction of the puncture needle 3.
The catheter 5 cut and placed in the protective tube 2 is shown advancing outward through the hollow part of the puncture needle 3.
第２図は穿刺針および保護チユーブを第１図の
定置装置から外し、さらに保持装置の内部構造を
示すために第１図で示したＡ方向から保持装置の
みを切断した断面図である。ナイフ６はカテーテ
ル５の後端部にその刃を向け両端を保持装置に固
定されている。接続装置４はその一端がカテーテ
ル５の中空部に結合されており他の一端は薬液等
の注入装置に接続できる構造を有し、ナイフ６お
よび中間の広がり部７において保持装置に固定さ
れている。尚、第３図に示した如く、接続装置は
ナイフ６にのみ固着させ、ナイフ６を介して保護
装置に固定させることも可能である。ナイフ６は
薄く切れ味の良いことが必要でかつ錆の出ないス
テンレススチールの如き材質を使用することが望
ましい。 FIG. 2 is a cross-sectional view of only the holding device taken from the direction A shown in FIG. 1, with the puncture needle and protective tube removed from the stationary device of FIG. 1, and further showing the internal structure of the holding device. The knife 6 has its blade directed toward the rear end of the catheter 5, and both ends thereof are fixed to a holding device. The connecting device 4 has one end connected to the hollow part of the catheter 5, and the other end has a structure capable of being connected to an injection device for liquid medicine, etc., and is fixed to the holding device at the knife 6 and the intermediate widened portion 7. . Incidentally, as shown in FIG. 3, it is also possible to fix the connecting device only to the knife 6 and to the protective device via the knife 6. The knife 6 needs to be thin and sharp, and is preferably made of rust-free material such as stainless steel.
第４図は保護チユーブおよび穿刺針の断面を示
した図である。保護チユーブ２は可撓性のプラス
チツクまたは同等の、望ましくは中に容れたカテ
ーテルが目視できる様な透明性を有する材質で作
られ、その先端に穿刺針をはめ込むことができる
チユーブである。穿刺針３は可撓性であるが剛固
なプラスチツク製で従来よりカテーテルの体内へ
の導入装置として広く使用されているもので、一
般には、カテーテルの定置に先立ち本穿刺針は金
属製の注射針を有する注射器の注射針外側にはめ
込まれ該穿刺針の先端から注射針の刃先を出した
状態で静脈へ穿刺され、穿刺後該穿刺針から注射
器を抜き去ることにより穿刺針のみが静脈に設置
され、しかる後に該穿刺針３のカテーテル挿入口
である根元部に保護チユーブ２が接続されるので
ある。以上説明した構造により、先端に穿刺針３
を接続した保護チユーブ２に沿つて、その内部に
ナイフ６を有する保持装置１を進めることにより
該保護チユーブ２は該ナイフ６により切断され、
該保持装置内でその後端部が接続装置４に結合さ
れ該保護チユーブ２内に収められたカテーテル５
は該穿刺針３の中空部を通つて該穿刺針外へ進行
する。さらに該カテーテル５の完置完了にともな
い、該保護チユーブ２は該保持装置１の後方へ切
断除去され、さらに該穿刺針３を該保持装置１内
を通すことにより保護チユーブ同様該ナイフ６に
より切断され該保持装置から除去される。最後に
保持装置１を患者に固定し定置操作を完了する。
尚、本発明のカテーテル定置装置は、カテーテ
ル、穿刺針、接続装置から成る従来のカテーテル
装置同様、カテーテル定置操作時に接続装置に薬
液等の注入装置を結合させておくことが可能であ
ることは明らかである。 FIG. 4 is a cross-sectional view of the protective tube and puncture needle. The protective tube 2 is a tube made of flexible plastic or a similar material, preferably transparent so that the catheter contained therein can be seen, and into which a puncture needle can be inserted. The puncture needle 3 is made of flexible but rigid plastic and has been widely used as a device for introducing catheters into the body.Generally, this puncture needle is made of a metal injection needle before placing the catheter in place. A syringe with a needle is inserted into the outside of the needle, and a vein is punctured with the cutting edge of the needle sticking out from the tip of the puncture needle, and by removing the syringe from the puncture needle after puncturing, only the puncture needle is placed in the vein. After that, the protective tube 2 is connected to the base of the puncture needle 3, which is the catheter insertion port. With the structure explained above, the puncture needle 3 at the tip
The protective tube 2 is cut by the knife 6 by advancing the holding device 1 having a knife 6 inside it along the protective tube 2 connected to the protective tube 2;
A catheter 5 connected at its rear end to a connecting device 4 in the holding device and housed in the protective tube 2
advances to the outside of the puncture needle through the hollow part of the puncture needle 3. Further, when the catheter 5 is completely placed, the protective tube 2 is cut and removed to the rear of the holding device 1, and the puncture needle 3 is passed through the holding device 1, and the protective tube is cut by the knife 6. and removed from the holding device. Finally, the holding device 1 is fixed to the patient to complete the placement operation.
It is clear that the catheter placement device of the present invention, like the conventional catheter device consisting of a catheter, a puncture needle, and a connection device, can have an injection device for liquid medicine or the like coupled to the connection device during catheter placement operation. It is.
第５図は本発明の別な実施例を示し、保持装置
１から、該保持装置内部を第２図同様穿刺針、保
護チユーブを除き第６図に断面で示した如く、接
続装置４の薬液等の注入装置との結合部がカテー
テル５の長手方向に対し、ある角度を持つて設置
された構造を有したカテーテル定置装置である。 FIG. 5 shows another embodiment of the present invention, in which the interior of the holding device is removed from the holding device 1, excluding the puncture needle and protective tube as in FIG. 2, as shown in cross section in FIG. This catheter positioning device has a structure in which a connecting portion with an injection device such as the catheter 5 is installed at a certain angle with respect to the longitudinal direction of the catheter 5.
また、第７図は本発明のまた別な構造を持つ保
持装置部の実施例を第２図と同様、穿刺針、保護
チユーブを除いた保持装置の断面で示したもの
で、これまでの実施例では、穿刺針および保護チ
ユーブを保持装置内のナイフで２つ割りに切断す
る構造であつたのに対し、本装置は、保持装置１
内のナイフ６がカテーテル５の後端部にその刃を
向け、一端が保持装置１に固定されており、他端
を接続装置４のカテーテル５との接続部８に接合
し、穿刺針および保護チユーブを管の周囲の１ヵ
所で長手方向にスリツト状に切断し該穿刺針およ
び保護チユーブをカテーテル定置装置から除去す
る構造を有したカテーテル定置装置である。 In addition, FIG. 7 shows an embodiment of the holding device section of the present invention having a different structure, similar to FIG. 2, showing a cross section of the holding device excluding the puncture needle and the protective tube. In the example, the puncture needle and the protective tube were cut into two by the knife inside the holding device, whereas this device has a structure in which the puncture needle and the protective tube are cut into two by the knife inside the holding device.
The inner knife 6 has its blade directed toward the rear end of the catheter 5, one end is fixed to the holding device 1, and the other end is joined to the connection part 8 of the connection device 4 with the catheter 5, and the puncture needle and protection This catheter placement device has a structure in which the tube is cut into a slit in the longitudinal direction at one location around the tube and the puncture needle and protective tube are removed from the catheter placement device.
その他本発明の穿刺針および保護チユーブをナ
イフで切断除去する新しい概念の範囲を離反する
事なく種々の改変が施され得るのは勿論である。 Of course, various other modifications can be made without departing from the scope of the new concept of cutting and removing the puncture needle and protective tube of the present invention with a knife.
第１図は本発明の一実施例を示す外観図であ
る。第２図は第１図からカテーテルの保護チユー
ブおよび穿刺針を除いた保持装置内部を示す断面
図である。第３図は保持装置内部の構造が第２図
と異なる別な実施例を示す断面図である。第４図
は保護チユーブおよび穿刺針の断面図である。第
５図は本発明の別な実施例を示し、第６図は第５
図の保持装置内部を示す断面図を示す。第７図は
保持装置内部の構造が異なるまた別な実施例の断
面図である。
１は保持装置、２は保護チユーブ、３は穿刺
針、４は接続装置、５はカテーテル、６はナイ
フ、７は接続装置広がり部、８は接続装置のカテ
ーテルとの接続部を示す。
FIG. 1 is an external view showing an embodiment of the present invention. FIG. 2 is a sectional view showing the inside of the holding device from FIG. 1 with the protective tube and puncture needle of the catheter removed. FIG. 3 is a sectional view showing another embodiment in which the internal structure of the holding device is different from that in FIG. 2. FIG. 4 is a cross-sectional view of the protective tube and puncture needle. FIG. 5 shows another embodiment of the present invention, and FIG.
FIG. 3 is a sectional view showing the inside of the holding device shown in FIG. FIG. 7 is a sectional view of another embodiment in which the internal structure of the holding device is different. 1 is a holding device, 2 is a protective tube, 3 is a puncture needle, 4 is a connecting device, 5 is a catheter, 6 is a knife, 7 is a widening portion of the connecting device, and 8 is a connecting portion of the connecting device with the catheter.
Claims (1)
置において、プラスチツク製の管状の穿刺針と、
その先端で穿刺針と接続する保護チユーブと、該
保護チユーブ内にあつて該保護チユーブ先端付近
で終わる先端部を有するカテーテルと、該カテー
テル後端部に結合された接続装置と、該穿刺針内
を通してカテーテルを該穿刺針外へ進行させると
き該保護チユーブを切断除去し、かつカテーテル
定置操作完了にともない該穿刺針を切断除去する
ため、カテーテル後端部に設置されたナイフと該
ナイフおよび接続装置を固定し切断時に該保護チ
ユーブおよび穿刺針をガイドする保持装置とを有
することを特徴とするカテーテル定置装置。1. A device for placing a catheter mainly in a vein, which includes a tubular puncture needle made of plastic;
a protective tube connected to the puncture needle at its distal end; a catheter having a distal end disposed within the protective tube and terminating near the distal end of the protective tube; a connecting device coupled to the rear end of the catheter; A knife installed at the rear end of the catheter, the knife and a connecting device for cutting and removing the protective tube when advancing the catheter out of the puncture needle through the catheter, and cutting and removing the puncture needle when the catheter placement operation is completed. A catheter placement device comprising a holding device that fixes the protective tube and guides the puncture needle during cutting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57044479A JPS58163375A (en) | 1982-03-23 | 1982-03-23 | Cathetel placing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57044479A JPS58163375A (en) | 1982-03-23 | 1982-03-23 | Cathetel placing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58163375A JPS58163375A (en) | 1983-09-28 |
| JPS6124020B2 true JPS6124020B2 (en) | 1986-06-09 |
Family
ID=12692667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57044479A Granted JPS58163375A (en) | 1982-03-23 | 1982-03-23 | Cathetel placing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58163375A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021255517A1 (en) | 2020-06-15 | 2021-12-23 | Toyota Jidosha Kabushiki Kaisha | Vehicle charged to positive potential and having friction neutralizing-static eliminating type lubrication mechanism |
-
1982
- 1982-03-23 JP JP57044479A patent/JPS58163375A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021255517A1 (en) | 2020-06-15 | 2021-12-23 | Toyota Jidosha Kabushiki Kaisha | Vehicle charged to positive potential and having friction neutralizing-static eliminating type lubrication mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58163375A (en) | 1983-09-28 |
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