JPH07100212A - Stopcock for medical treatment - Google Patents

Stopcock for medical treatment

Info

Publication number
JPH07100212A
JPH07100212A JP5275989A JP27598993A JPH07100212A JP H07100212 A JPH07100212 A JP H07100212A JP 5275989 A JP5275989 A JP 5275989A JP 27598993 A JP27598993 A JP 27598993A JP H07100212 A JPH07100212 A JP H07100212A
Authority
JP
Japan
Prior art keywords
stopcock
valve
pressure
syringe
way
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
Application number
JP5275989A
Other languages
Japanese (ja)
Inventor
Shigeru Nemoto
茂 根本
Kazuaki Mizoguchi
一昭 溝口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nemoto Kyorindo Co Ltd
Original Assignee
Nemoto Kyorindo Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nemoto Kyorindo Co Ltd filed Critical Nemoto Kyorindo Co Ltd
Priority to JP5275989A priority Critical patent/JPH07100212A/en
Publication of JPH07100212A publication Critical patent/JPH07100212A/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/007Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests for contrast media
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22Valves or arrangement of valves
    • A61M39/223Multiway valves

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • Pulmonology (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

PURPOSE:To relieve an operator from intricate changeover operations of the stopcock in operation, such as injecting of a raw physiological salt soln. by disposing a second one-way valve between the three-ways stopcock with a one-way valve and a blood pressure monitoring line and disposing a negative- positive pressure changeover valve connected to an contrast medium packing line between the stopcock and a syringe for injecting the contrast medium. CONSTITUTION:The one-way valve 20 is inserted between the blood pressure monitoring line 11a and a monitoring cock 13 of a stopcock body 1. The valve attains an open state while the pressure from the stopcock body 1 side remains under a predetermined low pressure and attains a closed state when the pressure applied thereon rises to a high pressure. The three-ways stopcock 30 with the one-way valve attains the open state in the direction shown by an arrow (d) when the nozzle part of the syringe is inserted to the one-way valve disposed in its central part. The valve attains the closed state simultaneously when the nozzle part is withdrawn. The negative-positive pressure changeover valve 40 is formed with a flow passage shown by an arrow (e) when a negative pressure is applied to a syringe juncture. A flow passage shown by an arrow (c) is formed therein when a positive pressure is applied thereon.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、Coronary A
ngiography(冠動脈造影,以降CAGと略
す)に使用する医療用活栓に関するものである。
FIELD OF THE INVENTION The present invention relates to Coronary A
The present invention relates to a stopcock for medical use used for ngiography (coronary angiography, hereinafter abbreviated as CAG).

【0002】[0002]

【従来の技術】従来、CAGにおいては3連3方活栓が
使用されている。図6は、従来の3連3方活栓(3−W
ay 3−Stop Cock)を説明するための図で
あり、図において、1aは活栓本体、2はロテーティン
グ・アダプタ(Rotating Adaptor)、
3はその先端が患者に接続された造影用カテーテル、4
は注入用シリンジ、5は3連3方活栓のシリンジ接続
口、11aは血圧モニタリングライン、11bはヘパリ
ン添加生理食塩水充填ライン、11cは造影剤充填ライ
ン、12は圧力トランスデューサである。
2. Description of the Related Art Conventionally, three-way three-way stopcocks have been used in CAG. FIG. 6 shows a conventional three-way three-way stopcock (3-W
FIG. 3 is a diagram for explaining ay 3-Stop Cock), in which 1a is a stopcock main body, 2 is a Rotating Adapter,
3 is an imaging catheter whose tip is connected to the patient, 4
Is a syringe for injection, 5 is a syringe connection port of a three-way three-way stopcock, 11a is a blood pressure monitoring line, 11b is a heparin-added physiological saline filling line, 11c is a contrast medium filling line, and 12 is a pressure transducer.

【0003】次に、図6に示す3連3方活栓の動作につ
いて説明する。図7〜図8,図10〜図12はそれぞれ
3連3方活栓の動作を説明するための図であり、図にお
いて、10a〜10cはそれぞれストップコックを示
す。ストップコック10を操作して図7の状態に位置さ
せることで、造影剤充填ライン11cと注入用シリンジ
4との間が接続されると同時に造影用テーテル3へのル
ートを遮断して、シリンジ4へ造影剤の充填を行う。次
にストップコック10cを図8に示すように戻し、造影
用カテーテル3とシリンジ4とを接続して、図9に示す
ようにシリンジ4を45度以上持ち上げ、一度引いてカ
テーテル3内のエアー(Air)を抜きを行う。これら
の操作を行うことで患者への造影剤の注入が可能にな
る。なお、この造影剤の注入は、CAG検査中におい
て、造影用カテーテル3の先端を患者の冠動脈口に導く
ためのテストショット(この場合は1cc〜3ccの造
影剤を注入する)と、本造影(この場合は5cc〜7c
cの造影剤を注入する)とで、数十回繰り返されるが、
その都度、医師等によってストップコック10cの切り
換え操作が繰り返し行われることになる。
Next, the operation of the three-way three-way stopcock shown in FIG. 6 will be described. 7 to 8 and FIGS. 10 to 12 are views for explaining the operation of the three-way three-way stopcock, respectively, and in the drawings, 10a to 10c respectively indicate stopcocks. By operating the stopcock 10 to position it in the state shown in FIG. 7, the contrast agent filling line 11c and the injection syringe 4 are connected, and at the same time, the route to the contrast imaging catheter 3 is blocked and the syringe 4 Fill with contrast agent. Next, the stop cock 10c is returned as shown in FIG. 8, the contrasting catheter 3 and the syringe 4 are connected, the syringe 4 is lifted 45 degrees or more as shown in FIG. Remove Air). By performing these operations, it becomes possible to inject the contrast medium into the patient. The injection of the contrast agent includes a test shot (in this case, 1 cc to 3 cc of the contrast agent is injected) for guiding the tip of the contrast catheter 3 to the coronary ostium of the patient during the CAG examination, and the main contrast ( In this case, 5cc-7c
Injecting the contrast agent of c)
Each time, the switching operation of the stopcock 10c is repeatedly performed by a doctor or the like.

【0004】次に、CAG検査中の血圧測定について説
明する。CAG検査中は、造影用カテーテル3の先端が
冠動脈口へ挿入されることによる冠血流の障害、および
造影剤注入による冠血流の希釈化から、患者がショック
を起こす場合があり、このため出来るだけ連続した血圧
の測定が必要になる。そして、この血圧のモニタリング
は、ストップコック10aを操作して、図10に示すよ
うに血圧モニタリングライン11aと造影用カテーテル
3とを接続し、造影用カテーテル3を通じて得た心拍に
よる血液の動きを、血圧モニタリングライン11aに充
填されたヘパリン添加生理食塩水を介して(この充填に
ついては後述する)圧力トランスデューサ12に導き、
電気信号に変換し、血圧波形としてCAG検査中の患者
の状態を連続モニタする。したがってCAG検査におい
ては、図10に示すように血圧をモニタリングしなが
ら、その都度コック10aを切り換え、図8に示すよう
に血圧測定を遮断して上述のテストショットや本造影を
行うことになる。
Next, the blood pressure measurement during the CAG test will be described. During the CAG examination, the patient may be shocked due to the impaired coronary blood flow due to the tip of the contrast enhancement catheter 3 being inserted into the ostium of the coronary artery and the dilution of the coronary blood flow due to the injection of the contrast medium. It is necessary to measure blood pressure as continuously as possible. Then, in this blood pressure monitoring, the stop cock 10a is operated to connect the blood pressure monitoring line 11a and the contrast catheter 3 as shown in FIG. Through the heparin-added physiological saline filled in the blood pressure monitoring line 11a, the pressure transducer 12 is introduced (this filling will be described later),
It is converted into an electric signal and the patient's condition during CAG examination is continuously monitored as a blood pressure waveform. Therefore, in the CAG examination, while monitoring the blood pressure as shown in FIG. 10, the cock 10a is switched each time, and the blood pressure measurement is interrupted as shown in FIG. 8 to perform the above-described test shot or main imaging.

【0005】図11は、充填ライン11bを介して、ヘ
パリン添加生理食塩水を注入シリンジ4へ充填する場合
のストップコックの位置を示す。すなわち、図11に示
す状態でパリン添加生理食塩水を注入用シリンジ4へ充
填し、次に図12に示すようにストップ・コック10a
を切り換えて注入用シリンジ4を押圧することで、血圧
モニタリングライン11aヘ、パリン添加生理食塩水を
送り、上述の血圧モニタリングを行う。なお、カテーテ
ルが長時間留置されるとカテーテル内に血栓が付着して
くるためフラッシングが必要になる。さらに、薬液を注
入した場合にもフラッシングが必要となり、適宜、スト
ップコックを図11に示す状態から図8に示す状態へ切
り換え、造影用カテーテル3にヘパリン添加生理食塩水
を流し、カテーテルをフラッシングしている。また、図
9に示すエアー抜き操作は、3連3方活栓の操作では無
いものの、カテーテル3の挿入・交換時および、造影剤
注入用シリンジ4とそれ以外の例えば薬液注入用シリン
ジ(図示せず)との交換時などに混入してしまうエアー
の除去を行うため、必要不可欠な操作として術中数度と
なく行われるものである。
FIG. 11 shows the position of the stopcock when filling the injection syringe 4 with heparin-added physiological saline via the filling line 11b. That is, in the state shown in FIG. 11, the injection syringe 4 is filled with the physiological saline containing parine, and then the stop cock 10a as shown in FIG.
Is switched to press the injecting syringe 4 to send the parin-added physiological saline to the blood pressure monitoring line 11a to perform the above blood pressure monitoring. If the catheter is left indwelling for a long period of time, thrombus will adhere to the inside of the catheter, which requires flushing. Further, flushing is necessary even when the drug solution is injected, and the stopcock is appropriately switched from the state shown in FIG. 11 to the state shown in FIG. ing. The air bleeding operation shown in FIG. 9 is not the operation of the three-way three-way stopcock, but at the time of insertion / replacement of the catheter 3 and the contrast medium injection syringe 4 and other syringes (not shown) for injecting a drug solution, for example. ) To remove the air that would be mixed in during replacement, etc., and is performed as an indispensable operation several times during surgery.

【0006】[0006]

【発明が解決しようとする課題】従来の医療用活栓は以
上のように構成され動作するので、血圧のモニタとテス
トショットを含めた造影剤の注入・充填およびエアー抜
きその他の操作を、ストップコックの頻繁な切り換えな
しに行うことはできない。また、造影剤を含めた各種の
薬液の注入においては、シリンジ接続口5が1個しかな
いため、術中のシリンジ交換を数度となく行う必要があ
り、そのためその都度図9に示すエアー抜き操作が必要
になる。さらに、テストショットを含め数十回も行わな
ければならない造影剤の注入では、注入時と注入後との
両方で、その都度ストップコック10aを速やかに切り
換えなければならず、これらの操作が術者に過度の負担
を与える。特に、患者が重症であればあるほど、これら
のストップコックの頻繁な切り換えが必要となり、その
負担が増大するという問題点があった。
Since the conventional stopcock for medical use is constructed and operates as described above, the stopcock can be used for injection / filling of the contrast agent including the blood pressure monitor and test shot, and air bleeding and other operations. Cannot be done without frequent switching. Further, in the injection of various kinds of liquid medicine including the contrast agent, since there is only one syringe connection port 5, it is necessary to replace the syringe during the operation several times. Therefore, the air venting operation shown in FIG. 9 is required each time. Will be required. Furthermore, in injection of a contrast agent that must be performed several tens of times including a test shot, the stopcock 10a must be switched promptly both at the time of injection and after injection, and these operations are performed by the operator. Give undue burden to. In particular, the more severe the patient, the more frequently these stopcocks need to be switched, which increases the burden.

【0007】本発明は、かかる問題点を解決するために
なされたものであり、血圧のモニタリング、造影剤およ
び生食水の注入・充填、エアー抜き等の操作におけるス
トップコックの頻繁な切り換え操作から術者を開放でき
る医療用活栓を提供することを目的としている。
The present invention has been made in order to solve such a problem, and it is operated from frequent switching operations of a stopcock in operations such as blood pressure monitoring, injection / filling of contrast medium and saline, air bleeding and the like. It is intended to provide a medical stopcock that can open a person.

【0008】[0008]

【課題を解決するための手段】本発明に係わる医療用活
栓は、ストップコックで操作される三方活栓のうちa方
向活栓が造影用カテーテルに接続され、b方向活栓が血
圧モニタリングラインに接続され、c方向活栓が造影剤
注入用シリンジに接続され、上記a,b,c方向と直角
方向(d方向)に第1の一方弁が設けられ、この第1の
一方弁に別のシリンジを装着することでd方向の活栓を
形成する一方弁付き三方活栓と、上記b方向活栓と上記
血圧モニタリングラインとの間に、上記一方弁付き三方
活栓側から加えられる圧力が予め定めた一定圧力値以下
の場合に開放状態をとり一定圧力以上の場合に閉塞状態
をとる第2の一方弁と、上記c方向活栓と造影剤注入用
シリンジとの間に、造影剤充填ラインに接続されるe方
向活栓が設けられた陰陽圧切換バルブとで構成される。
In the medical stopcock according to the present invention, of the three-way stopcocks operated by a stopcock, the stopcock in the a direction is connected to the contrast catheter, and the stopcock in the b direction is connected to the blood pressure monitoring line. A c-direction stopcock is connected to a contrast medium injection syringe, and a first one valve is provided in a direction (d direction) perpendicular to the a, b, and c directions, and another syringe is attached to the first one valve. The three-way stopcock with a one-way valve that forms a stopcock in the d direction, and the pressure applied from the three-way stopcock with the one-way valve between the b-way stopcock and the blood pressure monitoring line is below a predetermined constant pressure value. In this case, an e-direction stopcock connected to the contrast agent filling line is provided between the second one-way valve which is opened and closed when the pressure exceeds a certain level, and the c-direction stopcock and the contrast agent injection syringe. Provided Composed of the yin and yang pressure switching valve.

【0009】[0009]

【作用】この発明の医療用活栓においては上述の構成と
することにより、術中造影剤注入用シリンジの着脱を不
要とし、エアー抜き操作を簡略化する。また、造影剤の
注入,充填、および血圧モニタリングと造影剤注入との
切り換えをストップコックの切り換えなしに行えるよう
にした。
In the medical stopcock of the present invention, the construction described above makes it unnecessary to attach and detach the intraoperative contrast agent injection syringe, and simplifies the air bleeding operation. In addition, contrast agent injection and filling, and blood pressure monitoring and contrast agent injection can be switched without switching the stopcock.

【0010】[0010]

【実施例】以下、本発明の一実施例を図面を用いて説明
する。図1は、本発明の医療用活栓の構成を示す図であ
り、図において、図3と同一符号は同一又は相当部分を
示し、1は本実施例における医療用活栓本体で、20の
一方弁(スイッチング バルブ)、30の一方弁付き三
方活栓、40の陰陽圧切換バルブとで構成される。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a configuration of a medical stopcock of the present invention. In the figure, the same reference numerals as those in FIG. 3 indicate the same or corresponding portions, and 1 is a medical stopcock main body in the present embodiment, and one valve of 20 (Switching valve), three-way stopcock with one-way valve 30, and positive / negative pressure switching valve 40.

【0011】図2は一方弁20の構成および動作を説明
するための図である。一方弁20は、血圧モニタリング
ライン11aと活栓本体1のモニタリングコック13と
の間に挿入され、活栓本体1側から加えられる圧が予め
定めた低圧までは開放状態を取り、加えられる圧が高圧
になると閉塞状態を取るように開閉動作する。
FIG. 2 is a view for explaining the structure and operation of the one-way valve 20. On the other hand, the valve 20 is inserted between the blood pressure monitoring line 11a and the monitoring cock 13 of the stopcock main body 1, and is kept open until the pressure applied from the stopcock main body 1 side reaches a predetermined low pressure, and the applied pressure becomes high. Then, it opens and closes so as to take the closed state.

【0012】図3は一方弁付き三方活栓30の構成およ
び動作を説明するための図であり、この一方弁付き三方
活栓30は、三方活栓本体31とストップコック32と
で、矢印a,b,c方向へ通常の三方活栓と同様に機能
するが、この中心部に一方弁33が設けられており、図
3(B)に示すように、ここへシリンジ34のノズル部
が挿入されて装着されることにより、矢印dに示す方向
が開放状態となり、ノズル部引き抜きと同時に閉塞状態
となるように動作する機能が付加されている。
FIG. 3 is a view for explaining the structure and operation of the one-way valve-equipped three-way stopcock 30. This one-way valve-equipped three-way stopcock 30 comprises a three-way stopcock main body 31 and a stopcock 32, which are indicated by arrows a, b, and. Although it functions in the same way as a normal three-way stopcock in the c direction, a one-way valve 33 is provided at the center of the stopcock, and as shown in FIG. As a result, the direction shown by the arrow d is opened, and a function is added to operate so as to be closed at the same time as the nozzle portion is pulled out.

【0013】図4は陰陽圧切換バルブ40の構成および
動作を説明するための図であり、図4(A)に示すよう
にシリンジ4で吸引動作を行っておりシリンジ接続部4
1に陰圧がかかっている(白抜きの矢印に示す)とき
は、点線の矢印mに示す流路が形成される。また、これ
と反対に図4(B)に示すようにシリンジ4で押圧動作
を行っており、シリンジ接続部41に陽圧がかかってい
るときは、点線の矢印nに示す流路が形成される。この
陰陽圧バルブ40は商品名(Dual Check Aspiration Val
be) として市販されているものと同様の構成のものであ
る。
FIG. 4 is a diagram for explaining the construction and operation of the negative / positive pressure switching valve 40. As shown in FIG. 4 (A), the syringe 4 is performing the suction operation, and the syringe connecting portion 4 is shown.
When negative pressure is applied to 1 (indicated by a white arrow), a flow path indicated by a dotted arrow m is formed. On the contrary, as shown in FIG. 4 (B), when the syringe 4 is performing the pressing operation and the positive pressure is applied to the syringe connection portion 41, the flow path indicated by the dotted arrow n is formed. It This positive / negative pressure valve 40 is a product name (Dual Check Aspiration Val
be) has the same configuration as that commercially available.

【0014】次に本発明の動作について説明する。本発
明では第1として、負圧の相違により自動的に開閉する
一方弁20を用いて、ストップコック10aの機能を自
動的に行わせることにより、ストップコック10aの操
作を、初期セッティングおよびエアー抜き時のみの操作
とすることができる。すなわち、ヘパ生理食塩水の血圧
モニタリングライン11aへの充填圧は約200m/m
・Hgで済み、血圧モニタリング中の測定圧は約300
m/m・Hgで済むのに対し、造影剤注入圧は8,00
0m/m・Hg以上を必要とする。従って、この負圧の
相違により、自動的に開閉する一方弁20を用いること
で、血圧をモニタリングしながら、必要時に造影剤の注
入を行い、テストショットおよび本造影を可能とする。
Next, the operation of the present invention will be described. According to the first aspect of the present invention, by using the one-way valve 20 that automatically opens and closes depending on the difference in negative pressure, the stopcock 10a is automatically operated, so that the operation of the stopcock 10a is initially set and bleeded. It can be operated only when. That is, the filling pressure of hepa saline to the blood pressure monitoring line 11a is about 200 m / m.
・ Hg is enough and the measured pressure during blood pressure monitoring is about 300.
m / m · Hg is sufficient, whereas contrast agent injection pressure is 8,000
It requires 0 m / m · Hg or more. Therefore, by using the one-way valve 20 that automatically opens and closes due to this difference in negative pressure, a contrast agent is injected when necessary while monitoring blood pressure, and a test shot and main imaging can be performed.

【0015】以上の動作を図2の一方弁で説明すれば、
図2(A)に示すように一方弁20は、通常、スプリン
グ23の引っ張り力によって弁体21が図面矢印の方向
(下方)へ引っ張られており、約300m/m・Hg程
度の負圧では弁体21が摺動しないように構成されてい
る。従って血圧モニタリング時(約300m/m・Hg
以内)やモニタリングライン11aにヘパリン添加生理
食塩水を充填する(約200m/m・Hg以内)場合
は、一方弁20は開放状態を取り、一方、造影剤注入時
においては、その注入圧が8,000m/m・Hg以上
となるため、スプリング23の引っ張り力に抗って弁体
21が図面上方へ持ち上げられ、上部嵌合部24とO−
リング22とが嵌合し、このラインを閉鎖し、モニタリ
ングライン11aへの造影剤注入時における過剰圧を防
ぐ(この状態を図2(B)に示す)ため、ストップコッ
クの切り換え操作なしに、これらの動作を連続して行う
ことができるようになる。
The above operation will be described with reference to the one valve of FIG.
As shown in FIG. 2 (A), in the one-way valve 20, the valve body 21 is normally pulled in the direction of the arrow (downward) by the pulling force of the spring 23, and when the negative pressure is about 300 m / m · Hg. The valve body 21 is configured not to slide. Therefore, during blood pressure monitoring (approx. 300 m / m · Hg
1) and the monitoring line 11a are filled with heparin-added physiological saline (within about 200 m / m · Hg), the one-way valve 20 is opened, while the injection pressure is 8 when the contrast agent is injected. Since it is more than 1,000 m / m · Hg, the valve body 21 is lifted upward in the drawing against the tensile force of the spring 23, and the upper fitting portion 24 and O-
In order to prevent excessive pressure at the time of injecting the contrast medium into the monitoring line 11a (this state is shown in FIG. 2B), the ring 22 is fitted and the line is closed. These operations can be continuously performed.

【0016】次に本発明では第2として、一方弁付き三
方活栓30を設けることによりストップコック10bお
よび生理食塩水充填ライン11bを省略した構成とでき
る。すなわち、図3に示すように中央に一方弁33を設
けることにより、この一方弁33の先端を第2のシリン
ジ接続口とし、3−WAYであったコックを4−WAY
コックと同様に動作させる。すなわち、今までストップ
コック10bを使用して単独ルートにより行われてい
た、ヘパ生理食塩水の注入,エアー抜き,およびその他
の薬液の注入がこの一方弁33の先端に設けた第2のシ
リンジ接続口を利用して行えるようになり、ストップコ
ック10bおよび生理食塩水充填ライン11bを不要に
することができる。また、その他の薬液の注入はこの一
方弁33の先端の第2の接続口に別のシリンジ34を挿
入して行えるようになるため、図1に示す造影剤注入シ
リンジ4を術中着脱する必要がなくなり、そのための手
間およびエアー抜き操作から術者を開放できるようにな
る。
Next, in the second aspect of the present invention, the stop cock 10b and the saline filling line 11b can be omitted by providing the one-way valve-equipped three-way stopcock 30. That is, by providing a one-way valve 33 in the center as shown in FIG. 3, the tip of this one-way valve 33 is used as a second syringe connection port, and the cock that was 3-WAY is replaced with 4-WAY.
It works like a cook. That is, the injection of hepa physiological saline, the air bleeding, and the injection of other chemicals, which have been performed by the single route using the stop cock 10b, are connected to the second syringe provided at the tip of the one-way valve 33. Since it can be performed using the mouth, the stop cock 10b and the saline filling line 11b can be eliminated. Further, since the injection of the other drug solution can be performed by inserting another syringe 34 into the second connection port at the tip of the one-way valve 33, it is necessary to attach and detach the contrast agent injection syringe 4 shown in FIG. 1 during the operation. The operator can be freed from the trouble and air bleeding operation.

【0017】図5は本実施例におけるエアー抜き操作を
説明するための図であるが、本実施例においては、a,
b,cの三方と直角方向(図面Y方向)にシリンジ34
を装着できるため、一方弁33の先端の第2のシリンジ
接続口を垂直方向に向け、シリンジ34を垂直にして容
易に装着でき、シリンジ34装着時のエアーの混入を防
ぐことができると共に、図9に示すように、従来は手で
持って45度以上傾けて行っていたエアー抜き操作を、
装置を台に固定させたまま行えるようになる。このため
従来のエアー抜き操作時におけるカテーテルの折曲点
(図9の符号6に示す)の損傷等に気使う必要がなくな
り、術者の負担を軽減し安全に行えるようになる。
FIG. 5 is a view for explaining the air bleeding operation in this embodiment, but in this embodiment, a,
Syringe 34 in the direction perpendicular to the three directions of b and c (Y direction in the drawing)
Since the second syringe connection port at the tip of the one-way valve 33 is oriented in the vertical direction so that the syringe 34 can be mounted vertically, it is possible to prevent air from being mixed when the syringe 34 is mounted. As shown in 9, the air bleeding operation that was conventionally carried by hand and tilted 45 degrees or more,
The device can be fixed on the table. Therefore, it is not necessary to pay attention to the damage of the bending point (shown by reference numeral 6 in FIG. 9) of the catheter during the conventional air bleeding operation, and the burden on the operator can be reduced and the operation can be performed safely.

【0018】次に本発明では第3として一方弁付き三方
活栓30の後段に三方向の陰陽圧切換バルブ40を設け
ることにより、ストップコック10cを省略した構成と
できる。この陰陽圧切換バルブ40の動作は図4で説明
しているが、その構成は陰圧により閉塞状態をとり陽圧
により開放状態をとる一方弁を注入側に、陽圧により閉
塞状態をとり陰圧により開放状態をとる一方弁を充填側
に直列に連結させて一体化したもので、シリンジ4の押
し引きに連動して各一方弁が交互に動作し、図7,図8
で説明した従来の装置の動作を、ストップコック10c
を設けることなく、術者の片手だけの操作で連続して行
えるようになる。
Next, in the third aspect of the present invention, the stop cock 10c can be omitted by providing the three-way negative / positive pressure switching valve 40 at the rear stage of the one-way valve-equipped three-way stopcock 30. The operation of the positive / negative pressure switching valve 40 has been described with reference to FIG. One valve that is opened by pressure is connected to the filling side in series and integrated, and each one valve alternately operates in conjunction with pushing and pulling of the syringe 4.
The operation of the conventional device described in 1.
It is possible to continuously perform the operation with only one hand of the surgeon without providing.

【0019】[0019]

【発明の効果】本発明の医療用活栓は以上説明したよう
に、CAG操作において従来必要であった3個のストッ
プコックを1個のストップコックだけで構成でき、しか
もこのストップコックの操作は初期セッティングおよび
エアー抜き操作時における操作のみに限定でき、それ以
外のストップコックの操作を全く不要とできる。特に、
一番コックの切り換えが必要な血圧モニタリング、造影
剤の注入・充填時にコックの切換操作が全くいらなくな
り、ストップコックの操作から術者を大幅に開放できる
ようになる。また、造影剤注入時における血圧モニタリ
ングが中断するというタイムロスを最小限にとどめられ
る等の効果がある。
As described above, in the medical stopcock of the present invention, the three stopcocks conventionally required for the CAG operation can be configured with only one stopcock, and the operation of the stopcock is initially performed. The operation can be limited to the setting and air bleeding operations, and the other stop cock operations can be completely eliminated. In particular,
It eliminates the need to switch the cock when monitoring blood pressure, which requires the most cock switching, and when injecting / filling the contrast agent, thus greatly freeing the operator from the operation of the stop cock. Further, there is an effect such that the time loss that blood pressure monitoring is interrupted at the time of injecting a contrast medium can be minimized.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明における医療用活栓の構成を示す図であ
る。
FIG. 1 is a diagram showing a configuration of a medical stopcock according to the present invention.

【図2】図1に示す一方弁20の構成および動作を説明
するための図である。
FIG. 2 is a view for explaining the configuration and operation of the one-way valve 20 shown in FIG.

【図3】図1に示す一方弁付き三方活栓30の構成およ
び動作を説明するための図である。
FIG. 3 is a diagram for explaining the configuration and operation of the one-way valve-equipped three-way stopcock 30 shown in FIG. 1.

【図4】図1に示す陰陽圧切換バルブ40の構成および
動作を説明するための図である。
4A and 4B are views for explaining the configuration and operation of the positive / positive pressure switching valve 40 shown in FIG.

【図5】本発明の装置におけるエアー抜き操作を説明す
るための図である。
FIG. 5 is a view for explaining an air venting operation in the device of the present invention.

【図6】従来の3連3方活栓を説明するための図であ
る。
FIG. 6 is a diagram for explaining a conventional three-way three-way stopcock.

【図7】従来の動作を説明するための図である。FIG. 7 is a diagram for explaining a conventional operation.

【図8】従来の動作を説明するための図である。FIG. 8 is a diagram for explaining a conventional operation.

【図9】従来の動作を説明するための図である。FIG. 9 is a diagram for explaining a conventional operation.

【図10】従来の動作を説明するための図である。FIG. 10 is a diagram for explaining a conventional operation.

【図11】従来の動作を説明するための図である。FIG. 11 is a diagram for explaining a conventional operation.

【図12】従来の動作を説明するための図である。FIG. 12 is a diagram for explaining a conventional operation.

【符号の説明】[Explanation of symbols]

1 医療用活栓 3 造影用カテーテル 4 造影剤注入用シリンジ 5 シリンジ接続口 6 カテーテルの折曲点 11a 血圧モニタリングライン 11c 造影剤充填ライン 20 一方弁(スイッチングバルブ) 30 一方弁付き三方活栓 40 陰陽圧切換バルブ 34 シリンジ 1 Medical Stopcock 3 Contrast Catheter 4 Syringe for Injection of Contrast Agent 5 Syringe Connection Port 6 Bending Point of Catheter 11a Blood Pressure Monitoring Line 11c Contrast Agent Filling Line 20 One-way Valve (Switching Valve) 30 One-way Stopcock with One-way Valve 40 Negative / Positive Switching Valve 34 syringe

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 Coronary Angiograp
hy(冠動脈造影)に使用する医療用活栓において、 ストップコックで操作される三方活栓のうちa方向活栓
が造影用カテーテルに接続され、b方向活栓が血圧モニ
タリングラインに接続され、c方向活栓が造影剤注入用
シリンジに接続され、上記a,b,c方向と直角方向
(d方向)に第1の一方弁が設けられ、この第1の一方
弁に別のシリンジを装着することでd方向の活栓を形成
する一方弁付き三方活栓を備え、 術中上記造影剤注入用シリンジの着脱を不要にすると共
にエアー抜き操作を簡略化させたことを特徴とする医療
用活栓。
1. Coronary Angiograp
Among the stopcocks for medical use used for hy (coronary angiography), of the three-way stopcocks operated by the stopcock, the stopcock in the a direction is connected to the contrast catheter, the stopcock in the b direction is connected to the blood pressure monitoring line, and the stopcock in the c direction is imaged. It is connected to a drug injection syringe, and a first one valve is provided in a direction (d direction) perpendicular to the a, b, and c directions, and by attaching another syringe to this first one valve, A stopcock for medical use characterized by comprising a three-way stopcock with a one-way valve forming a stopcock, which makes it unnecessary to attach and detach the contrast medium injection syringe during operation and simplifies the air bleeding operation.
【請求項2】 上記b方向活栓と上記血圧モニタリング
ラインとの間に、上記一方弁付き三方活栓側から加えら
れる圧力が予め定めた一定圧以下の場合に開放状態とな
り一定圧以上の場合に閉塞状態となる第2の一方弁を挿
入し、血圧モニタリングと造影剤注入との切り換えをス
トップコックの切り換えなしに行わせることを特徴とす
る請求項第1項記載の医療用活栓。
2. When the pressure applied from the one-way valve-equipped three-way stopcock side between the b-direction stopcock and the blood pressure monitoring line is below a predetermined constant pressure, it is opened, and when it is above the constant pressure, it is closed. 2. The stopcock for medical use according to claim 1, wherein the second one valve which is in a state is inserted, and the blood pressure monitoring and the contrast medium injection are switched without switching the stopcock.
【請求項3】 上記c方向活栓と造影剤注入用シリンジ
との間に、造影剤充填ラインに接続されるe方向活栓が
設けられた陰陽圧切換バルブを挿入し、上記造影剤注入
用シリンジを引いて陰圧をかけることにより上記c方向
活栓を閉塞状態,上記e方向活栓を開放状態として上記
造影剤注入用シリンジに造影剤の充填を行わせ、上記造
影剤注入用シリンジを押して陽圧をかけることにより上
記c方向活栓を開放状態,上記e方向活栓を閉塞状態と
して上記造影剤注入用シリンジで造影剤の注入を行わ
せ、造影剤の注入・充填をストップコックの切り換えな
しに行わせることを特徴とする請求項第1項または第2
項記載の医療用活栓。
3. A negative / positive pressure switching valve provided with an e-direction stopcock connected to a contrast agent filling line is inserted between the c-direction stopcock and the contrast agent injection syringe, and the contrast-agent injection syringe is inserted. By pulling and applying a negative pressure, the c-direction stopcock is closed and the e-direction stopcock is opened to cause the contrast medium injection syringe to be filled with the contrast medium, and the contrast medium injection syringe is pushed to apply a positive pressure. By making the c-direction stopcock open and the e-direction stopcock closed to cause the contrast agent injection syringe to inject the contrast agent, and to inject / fill the contrast agent without switching the stopcock. Claim 1 or 2 characterized by
The stopcock for medical treatment according to the item.
JP5275989A 1993-10-08 1993-10-08 Stopcock for medical treatment Pending JPH07100212A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5275989A JPH07100212A (en) 1993-10-08 1993-10-08 Stopcock for medical treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5275989A JPH07100212A (en) 1993-10-08 1993-10-08 Stopcock for medical treatment

Publications (1)

Publication Number Publication Date
JPH07100212A true JPH07100212A (en) 1995-04-18

Family

ID=17563228

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5275989A Pending JPH07100212A (en) 1993-10-08 1993-10-08 Stopcock for medical treatment

Country Status (1)

Country Link
JP (1) JPH07100212A (en)

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