JPH10118081A - Hemostatic tool - Google Patents

Hemostatic tool

Info

Publication number
JPH10118081A
JPH10118081A JP28390496A JP28390496A JPH10118081A JP H10118081 A JPH10118081 A JP H10118081A JP 28390496 A JP28390496 A JP 28390496A JP 28390496 A JP28390496 A JP 28390496A JP H10118081 A JPH10118081 A JP H10118081A
Authority
JP
Japan
Prior art keywords
blood
hemostatic
liquid
outlet
hole
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.)
Granted
Application number
JP28390496A
Other languages
Japanese (ja)
Other versions
JP3724895B2 (en
Inventor
Toshiaki Akita
利明 秋田
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.)
BUAAYU KK
Original Assignee
BUAAYU KK
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 BUAAYU KK filed Critical BUAAYU KK
Priority to JP28390496A priority Critical patent/JP3724895B2/en
Publication of JPH10118081A publication Critical patent/JPH10118081A/en
Application granted granted Critical
Publication of JP3724895B2 publication Critical patent/JP3724895B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To provide a hemostatic tool wherein after bloodstream is stopped, blood sticked on a bloodsteam stopping position can be extremely simply washed out. SOLUTION: A hemostatic tool 1 has a structure wherein hemostatic parts 14 and 16 with larger outer peripheral dimensions than that of a base part 12 are provided on both ends of the rod-like base part 12 which can be flexibly curved and a tube 18 is fixed on the side face of the base part 12 and a connector 20 is fitted on the end part of the tube 18. Liq. outlets 22 are provided on four positions on the side face of the base part 12 between the hemostatic parts 14 and 16 and a liq. bung hole 24 is provided on the connector 20. In addition, the liq. outlets 22 on the four positions and the liq. bung hole 24 are communicated through a liq. flow path 26 formed in the tube 18 and the base part 12. When a plasma liq. is injected into the liq. bung hole 24, the plasma liq. flows out from the liq. outlets 22 and the blood sticked in the region where the bloodstream is stopped can be washed out by means of the hemostatic tool 1.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、例えば血管の側面
にバイパス用血管を縫合する際に、縫合箇所付近で血管
内の血流を遮断するために使われる止血用具に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hemostatic device used for blocking blood flow in a blood vessel near a suturing point, for example, when suturing a bypass blood vessel to the side of a blood vessel.

【0002】[0002]

【従来の技術】従来、例えば冠動脈狭窄による外科的治
療法として、CABG(coronary artery bypass graf
t:冠動脈バイパス術)が行われている。このCABG
は、例えば図5(a)に示す様に、血管Aに狭窄部Bが
存在する場合に、図5(e)に示す様に、その狭窄部B
よりも末梢側の箇所にバイパス用血管Cを縫合して、バ
イパス用血管Cを介して別の箇所から血液を供給できる
ようにする方法である。
2. Description of the Related Art Conventionally, CABG (coronary artery bypass graft) has been used as a surgical treatment for coronary artery stenosis.
t: coronary artery bypass surgery). This CABG
For example, as shown in FIG. 5A, when a stenosis B exists in a blood vessel A, as shown in FIG.
This is a method of suturing the bypass blood vessel C to a location more peripheral to the blood so that blood can be supplied from another location via the bypass blood vessel C.

【0003】ところで、このCABGでは、図5(b)
に示す様に、まず、狭窄部Bよりも末梢側の箇所で血管
Aに穴Dを開けてから、その穴Dに連通させる形でバイ
パス用血管Cが縫合されるが、穴Dから多量の血液が流
出する状態では、患者にかかる負担が大きくなるのはも
ちろんのこと、血管Aとバイパス用血管Cとの吻合部を
確認できず、両者を縫合することが困難になるため、バ
イパス用血管Cの縫合に先だって、穴Dの位置を含む所
定区間の血流を遮断すると共に、穴Dの近傍の血液を除
去しておく必要がある。
By the way, in this CABG, FIG.
As shown in (1), first, a hole D is made in the blood vessel A at a position more peripheral than the stenosis B, and then a bypass blood vessel C is sutured in a form communicating with the hole D. In a state in which blood flows out, not only does the burden on the patient increase, but also the anastomotic portion between the blood vessel A and the bypass blood vessel C cannot be confirmed, and it becomes difficult to suture both blood vessels. Prior to the suturing of C, it is necessary to cut off the blood flow in a predetermined section including the position of the hole D and remove the blood near the hole D.

【0004】そこで、従来は、穴Dの位置を含む所定区
間の血流を遮断するために、例えば図5(c)に示す様
な、止血用具100が使われていた。この止血用具10
0は、柔軟に湾曲する棒状の基部102の両端に、基部
102よりも外周寸法の大きい止血部104、106を
設けた構造で、上記穴Dから血管A内に挿入されて、両
端の止血部104、106が穴Dの両側に配置される
と、その状態で止血部104、106の外周が全周にわ
たって血管Aの内壁に密接し、穴Dの両側E、Fから穴
D側へと流入する血液を遮断することができた。
Therefore, conventionally, in order to cut off the blood flow in a predetermined section including the position of the hole D, a hemostatic device 100 as shown in FIG. This hemostatic device 10
Reference numeral 0 denotes a structure in which hemostatic portions 104 and 106 having larger outer dimensions than the base portion 102 are provided at both ends of a softly curved rod-like base portion 102. When the holes 104 and 106 are arranged on both sides of the hole D, the outer periphery of the hemostatic portions 104 and 106 is in close contact with the inner wall of the blood vessel A over the entire circumference in this state, and flows into the hole D from both sides E and F of the hole D. Could cut off blood.

【0005】そして、この止血用具100で血管A内の
血流を遮断した状態で、穴Dの近傍の所定区間を無血状
態とし、その状態で穴Dに連通するようにバイパス用血
管Cを縫合し、図5(d)に示す様に、バイパス用血管
Cを完全に縫合し終える直前に、紐108を引っ張って
止血用具100を血管A内から取り出し、その後、完全
にバイパス用血管Cを縫合していた。
[0005] With the hemostatic device 100 blocking the blood flow in the blood vessel A, a predetermined section near the hole D is made bloodless, and the bypass blood vessel C is sutured so as to communicate with the hole D in this state. Then, as shown in FIG. 5 (d), immediately before the suture of the bypass blood vessel C is completely completed, the string 108 is pulled to take out the hemostatic device 100 from the blood vessel A, and thereafter, the suture blood vessel C is completely sutured. Was.

【0006】[0006]

【発明が解決しようとする課題】ところで、上記従来の
止血用具100は、血流の遮断はできるものの、吻合部
に付着している血液を除去する機能は備えていない。そ
のため、実際の手術の際には、血流を遮断した後で、別
途、透明度の高い晶水液(例えば、生理食塩水など)を
注入して血液を洗い流していた。また、血液を洗い流し
た後にも、血液が滲み出すことがあり、その場合も、あ
らためて晶水液を注入して血液を洗い流していた。
By the way, the above-mentioned conventional hemostatic device 100 can block the blood flow, but does not have a function of removing the blood adhering to the anastomotic portion. Therefore, at the time of actual surgery, after blocking the blood flow, a highly transparent crystal water (eg, physiological saline) is separately injected to wash out the blood. In addition, even after the blood is washed out, the blood may seep out, and in such a case, the crystal water is again injected to wash out the blood.

【0007】しかしながら、この様にたびたび晶水液を
注入するといった作業は非常に煩わしく、手術の進行を
妨げることにもなるため、より簡単に血液を除去できる
手段が望まれていた。また、上記のような止血用具10
0は、CABGで使用する以外にも、血流を一時的に遮
断する手段として利用できると考えられるが、いずれに
しても血流遮断箇所に付着した血液が邪魔になるケース
は多々あり、より簡便な血液の除去手段が要望されてい
た。
[0007] However, such an operation of frequently injecting the crystallization water is very troublesome and hinders the progress of the operation. Therefore, means for removing blood more easily has been desired. In addition, the hemostatic device 10 as described above
It is considered that 0 can be used as a means for temporarily blocking blood flow in addition to use in CABG, but in any case, there are many cases in which blood adhered to a blood flow blocking portion becomes an obstacle. There has been a demand for a simple means of removing blood.

【0008】本発明は、上記問題を解決するためになさ
れたものであり、その目的は、血流を遮断した後で、き
わめて簡単に血流遮断箇所に付着した血液を洗い流すこ
とのできる止血用具を提供することにある。
SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a hemostatic device capable of extremely easily flushing blood adhered to a blood flow blocking portion after blocking a blood flow. Is to provide.

【0009】[0009]

【課題を解決するための手段、および発明の効果】上述
の目的を達成するために、請求項1記載の発明は、柔軟
に湾曲可能な棒状の基部の両端に、該基部よりも外周寸
法の大きい止血部を設けた構造で、血管の側面に形成さ
れる穴から血管内に挿入されて、前記両端の止血部が前
記穴の両側に配置され、その状態で前記止血部の外周が
全周にわたって血管の内壁に密接し、前記穴の両側から
穴側へと流入する血液を遮断する止血用具において、前
記両端の止血部の間に設けられ、外部へ液体を流出させ
る液体流出口と、該液体流出口と液体の供給源とを連通
し、該供給源から前記液体流出口へ液体を誘導する液体
流路とを備え、前記液体流出口から前記穴の近傍に液体
を放出可能としたことを特徴とする。
Means for Solving the Problems and Effects of the Invention In order to achieve the above-mentioned object, the invention according to claim 1 is characterized in that both ends of a flexible bendable rod-shaped base have outer peripheral dimensions smaller than the base. A structure provided with a large hemostatic portion, which is inserted into a blood vessel through a hole formed on the side surface of the blood vessel, and the hemostatic portions at both ends are arranged on both sides of the hole, and in this state, the outer periphery of the hemostatic portion is formed around the entire circumference. A hemostatic device that is in close contact with the inner wall of a blood vessel and blocks blood flowing from both sides of the hole toward the hole side, provided between the hemostatic portions at both ends, and a liquid outlet for flowing liquid to the outside; A liquid flow path that communicates the liquid outlet with a liquid supply source and guides the liquid from the supply source to the liquid outlet; and enables the liquid to be discharged from the liquid outlet to the vicinity of the hole. It is characterized by.

【0010】このように構成された本発明の止血用具に
よれば、従来品と同様に、血管内に挿入され、両端の止
血部が穴の両側に配置される。この状態では、止血部の
外周が全周にわたって血管の内壁に密接し、穴の両側か
ら穴側へと流入する血液は遮断される。また、従来品と
は異なり、液体の供給源から液体流路を介して供給され
る液体を液体流出口から流出させることができるため、
例えば止血部間の部分に晶水液を放出することにより、
付着した血液を洗い流すことができる。
According to the hemostatic device of the present invention configured as described above, the hemostatic device is inserted into a blood vessel and the hemostatic portions at both ends are arranged on both sides of the hole, similarly to the conventional product. In this state, the outer periphery of the hemostatic portion is in close contact with the inner wall of the blood vessel over the entire periphery, and blood flowing from both sides of the hole toward the hole is blocked. Also, unlike the conventional product, the liquid supplied from the liquid supply source via the liquid flow path can flow out of the liquid outlet,
For example, by releasing crystal water into the area between the hemostatic parts,
The attached blood can be washed away.

【0011】したがって、この止血用具であれば、血管
とバイパス用血管との吻合部付近を無血状態にでき、し
かも、吻合部付近に付着した血液を簡単に洗い流すこと
ができ、再び血液が滲み出してきたような場合にも、直
ちに洗い流すなどの対応を簡単にとることができる。ま
た、必要に応じて薬液を放出するような用途に利用する
こともできるので、吻合部近傍に簡単に薬剤を投与でき
るという利点もある。
[0011] Therefore, with this hemostatic device, the vicinity of the anastomosis between the blood vessel and the bypass blood vessel can be made free of blood, and the blood adhered to the vicinity of the anastomosis can be easily washed away, and the blood seeps out again. In such a case, it is possible to easily take measures such as immediately washing away. In addition, since it can be used for a purpose of releasing a drug solution as needed, there is an advantage that a drug can be easily administered near an anastomotic portion.

【0012】また、上記構成において、液体流出口は、
両端の止血部の間に設けられていれば、具体的な形態等
は特に限定されないが、例えば請求項2記載の止血用具
の様に、前記基部の側面から液体を注入可能な液体注入
口が設けられ、前記液体流出口が、前記基部の側面に設
けられ、前記液体流路が、前記液体注入口と前記液体流
出口とを連通する形で形成されていると、基部側面の任
意の位置に液体流出口を設けることができるので、血液
を洗い流すのに最適な位置に液体流出口を設けることが
でき、また、必要に応じて多数の液体流出口を設けるこ
ともできる。
In the above configuration, the liquid outlet is
The specific form and the like are not particularly limited as long as they are provided between the hemostatic portions at both ends. For example, as in the hemostatic device according to claim 2, a liquid inlet capable of injecting a liquid from the side surface of the base is provided. Provided, the liquid outlet is provided on a side surface of the base, and the liquid flow path is formed so as to communicate the liquid inlet and the liquid outlet. Since the liquid outlet can be provided at the most suitable position, the liquid outlet can be provided at an optimum position for flushing blood, and a plurality of liquid outlets can be provided as necessary.

【0013】また、請求項2記載の構成以外には、例え
ば、基部の外部に別途チューブなどを並列に接着して、
そのチューブに液体流出口を形成するといった構造も考
え得る。但し、この場合、チューブの配置されている側
にしか液体を放出できないので、例えば全方向に液体を
放出したいような場合には、基部の外周を取り巻くよう
な形でチューブを配設するといった工夫が必要となり、
構造的にかさ高いものとなりやすい。その点、請求項2
記載の如く構成すれば、基部の内部に液体を導入してい
るので、基部の外周であればきわめて簡単に任意の方向
に液体を放出できるという利点がある。
Further, in addition to the configuration described in claim 2, for example, a tube or the like is separately attached in parallel outside the base,
A structure in which a liquid outlet is formed in the tube is also conceivable. However, in this case, the liquid can be discharged only to the side where the tube is arranged. Therefore, for example, when it is desired to discharge the liquid in all directions, the device is arranged so that the tube surrounds the outer periphery of the base. Is required,
It tends to be bulky in structure. In that regard, claim 2
According to the configuration described above, since the liquid is introduced into the inside of the base, there is an advantage that the liquid can be discharged in an arbitrary direction extremely easily on the outer periphery of the base.

【0014】ところで、この種の止血用具を使用する場
合、例えば図5(c)に示した様に、血管Aの内部に配
置された状態では、一時的とはいえ、血管Aの末梢側へ
血液が全く供給されず、心筋に酸素が供給されない状態
となるため、患者には相応の負担がかかり、例えば患者
の容態を悪化させたり、あるいは患者の手術後の回復に
時間がかかったりする要因の一つとなっている。
By the way, when this kind of hemostatic device is used, for example, as shown in FIG. Blood is not supplied at all, and oxygen is not supplied to the myocardium, which places a considerable burden on the patient, for example, factors that deteriorate the patient's condition or take time to recover the patient after surgery. It has become one of.

【0015】この様な問題を解決するには、請求項3記
載の止血用具の様に、一方の止血部の先端側に設けら
れ、外部へ血液を流出させる血液流出口と、該血液流出
口と血液の供給源とを連通し、該供給源から前記血液流
出口へ血液を誘導する血液流路とを備え、前記血液流出
口から流出させた血液を、前記一方の止血部によって閉
塞された箇所よりも末梢側へ供給可能としてあるとよ
い。
In order to solve such a problem, as in the hemostatic device according to the third aspect, a blood outlet provided at the distal end side of one of the hemostatic parts and allowing blood to flow out to the outside, and the blood outlet A blood flow path that communicates with the blood supply source and guides blood from the supply source to the blood outlet, and the blood that has flowed out of the blood outlet is closed by the one hemostatic portion. It is preferable to be able to supply to the peripheral side from the location.

【0016】この様に構成された止血用具によれば、血
液流出口のある側の止血部が血管の末梢側となるような
向きで血管内に挿入し、血液の供給源から血液流路を介
して供給される血液を血液流出口から流出させると、こ
の血液が血管の末梢側へ供給される。したがって、この
止血用具であれば、血管の内部に配置した状態であって
も、血管の末梢側へ血液が供給され、心筋に酸素が供給
される状態を維持できる。その結果、患者の負担は格段
に軽減され、より安全に手術を行うことができるように
なり、また患者の手術後の回復も早くなる。
According to the thus configured hemostatic device, the hemostatic device is inserted into the blood vessel such that the hemostatic portion on the side with the blood outlet is located on the peripheral side of the blood vessel, and the blood flow path is supplied from the blood supply source. When blood supplied through the blood outlet flows out of the blood outlet, the blood is supplied to the peripheral side of the blood vessel. Therefore, with this hemostatic device, it is possible to maintain a state in which blood is supplied to the peripheral side of the blood vessel and oxygen is supplied to the myocardium, even when the hemostatic tool is placed inside the blood vessel. As a result, the burden on the patient is remarkably reduced, the operation can be performed more safely, and the patient can recover more quickly after the operation.

【0017】[0017]

【発明の実施の形態】次に、本発明の実施形態を図面に
基づいて説明する。なお、以下に説明する止血用具は、
本発明の実施形態の一例に過ぎず、本発明の構成手段は
下記の具体例に限定されない。
Next, embodiments of the present invention will be described with reference to the drawings. In addition, the hemostatic device described below
This is merely an example of an embodiment of the present invention, and the constituent means of the present invention are not limited to the following specific examples.

【0018】図1(a)に示す様に、止血用具1は、柔
軟に湾曲可能な棒状の基部12の両端に、基部12より
も外周寸法の大きい止血部14、16を設けた構造で、
基部12の側面にはチューブ18が固定され、チューブ
18の端部にはコネクタ20が取り付けられている。
As shown in FIG. 1A, the hemostatic device 1 has a structure in which hemostatic portions 14 and 16 having larger outer dimensions than the base 12 are provided at both ends of a rod-like base 12 that can be flexibly bent.
A tube 18 is fixed to a side surface of the base 12, and a connector 20 is attached to an end of the tube 18.

【0019】また、止血部14、16間で基部12の側
面には、図1(b)に示す様に、4ヶ所に液体流出口2
2が設けられ、コネクタ20には、液体注入口24が設
けられている。そして、4ヶ所の液体流出口22と液体
注入口24は、チューブ18および基部12の内部に形
成された液体流路26を介して連通している。
As shown in FIG. 1B, the liquid outlets 2 are provided at four locations on the side surface of the base 12 between the hemostatic portions 14 and 16.
2 is provided, and the connector 20 is provided with a liquid inlet 24. The four liquid outlets 22 and the liquid inlets 24 are in communication with each other via a liquid flow path 26 formed inside the tube 18 and the base 12.

【0020】基部12、止血部14、16は、いずれも
医療器具用として使われている樹脂材料等で作製されて
いれば、材料について特に限定されるものではないが、
例えば、ポリウレタン、ラテックス、シリコンゴム、天
然ゴム、ポリ塩化ビニル、ポリアミド、ポリアミドエラ
ストマー、エチレン酢酸ビニル共重合体、ポリエチレ
ン、ポリイミド、ポリエチレンテレフタレート、フッ素
樹脂等といった材料で形成されていればよく、その表面
をシリコンゴム等によってコーティングするなど、血管
内へ挿入される医療器具として周知の構造を適宜採用す
ることができる。また、基部12、止血部14、16
は、一体成形されていても、いくつかの分割された部品
を接着したものであってもよい。加えて、必要があれ
ば、基部12を中心に細い金属線を巻回するなどして、
樹脂材料だけでは足りない靱性や剛性の補強を図っても
よい。
The material of the base 12 and the hemostatic parts 14 and 16 is not particularly limited as long as they are made of a resin material or the like used for medical instruments.
For example, polyurethane, latex, silicon rubber, natural rubber, polyvinyl chloride, polyamide, polyamide elastomer, ethylene-vinyl acetate copolymer, polyethylene, polyimide, polyethylene terephthalate, a fluororesin, etc. may be used, and the surface thereof may be used. A known structure for a medical device to be inserted into a blood vessel, such as coating with silicone rubber or the like, can be appropriately adopted. In addition, the base 12, the hemostatic parts 14, 16
May be integrally formed or may be obtained by bonding several divided parts. In addition, if necessary, a thin metal wire is wound around the base 12,
Reinforcement of toughness or rigidity that is not sufficient with the resin material alone may be achieved.

【0021】以上のように構成された止血用具1は、例
えばCABGにおいて、従来品と全く同様の方法で使用
される。即ち、図2に示す様に、バイパス用血管を縫合
するために血管Aの側面に開けられた穴Dから血管A内
に挿入されて、止血部14、16が穴Dの両側に配置さ
れる。その状態で止血部14、16の外周が全周にわた
って血管Aの内壁に密接するため、穴Dの両側E、Fか
ら穴D側へと流入する血液を遮断することができる。
The hemostatic device 1 configured as described above is used in, for example, CABG in exactly the same manner as a conventional product. That is, as shown in FIG. 2, the hemostatic portions 14 and 16 are placed on both sides of the hole D by being inserted into the blood vessel A from a hole D formed on the side surface of the blood vessel A for suturing the bypass blood vessel. . In this state, since the outer circumferences of the hemostatic portions 14 and 16 are in close contact with the inner wall of the blood vessel A over the entire circumference, the blood flowing from both sides E and F of the hole D to the hole D side can be blocked.

【0022】また、この止血用具1であれば、例えばシ
リンジ(図示略)等を使って液体注入口24に晶水液
(生理食塩水)を注入することにより、その晶水液が液
体流路26を通って液体流出口22から流出するため、
止血用具1によって血流が遮断されている区間に付着し
ている血液を洗い流すことができる。したがって、止血
用具1を挿入した直後あるいは手術中に、穴D近傍の血
液を洗い流して簡単に除去することができ、血管Aとバ
イパス用血管の吻合部を容易に確認できる状態にするこ
とができる。
Further, in the case of the hemostatic device 1, a crystal water (physiological saline) is injected into the liquid inlet 24 using, for example, a syringe (not shown) or the like, so that the crystal water is supplied to the liquid flow path. 26 to flow out of the liquid outlet 22 through
The blood attached to the section where the blood flow is blocked by the hemostatic device 1 can be washed away. Therefore, immediately after the insertion of the hemostatic device 1 or during the operation, the blood in the vicinity of the hole D can be washed out and easily removed, and the anastomotic portion between the blood vessel A and the bypass blood vessel can be easily confirmed. .

【0023】更に、この止血用具1の液体注入口24を
使えば、穴D近傍に薬剤を投与することもできるので、
きわめて便利である。なお、チューブ18は、基部12
に対して接着剤を用いて接着されており、従来品(図5
参照)において説明した紐108と同様、血管内から引
き抜く際の操作部としても機能するが、もちろん、チュ
ーブ18とは別に紐を設けてもよい。
Further, if the liquid inlet 24 of the hemostatic device 1 is used, a medicine can be administered near the hole D.
Very convenient. The tube 18 is connected to the base 12.
To the conventional product (FIG. 5).
Similarly to the cord 108 described in (1), the cord also functions as an operation unit for pulling out of the blood vessel. However, a string may be provided separately from the tube 18.

【0024】以上、本発明の実施形態について説明した
が、本発明の構成手段については上記実施形態以外にも
種々考えられる。以下、有用な変形例について説明す
る。例えば、上記実施形態では、液体流出口22が、基
部12の側面の4ヶ所に設けられていたが、吻合部とな
る穴Dの近傍の血液を洗い流すことができれば、液体流
出口を設ける位置や数は適宜変更することができる。
Although the embodiment of the present invention has been described above, various constitutional means of the present invention can be considered in addition to the above-described embodiment. Hereinafter, useful modifications will be described. For example, in the above embodiment, the liquid outlets 22 are provided at four positions on the side surface of the base 12. However, if blood near the hole D serving as an anastomosis portion can be washed away, the position at which the liquid outlet is provided, The number can be changed as appropriate.

【0025】具体例を挙げれば、例えば、図3(a)に
示す止血用具2の様に、基部32の側面に1ヶ所だけ液
体流出口34を設け、液体注入口36から注入される晶
水液を放出できるものであってもよい。また別の具体例
を挙げれば、上述の止血用具1、2の様に、基部に液体
流路を形成するには、基部をいくつかの部品に分割して
穴開け加工を施し、その後で接着するといった加工、あ
るいは、基部を分割することなく穴開け加工を施し、余
計な穴を樹脂材料で埋めるといった加工が必要となる
が、図3(b)に示す止血用具3の様に、チューブ42
の固定端側に液体流出口44を設け、液体注入口46か
ら注入される晶水液を放出できる構造とすれば、基部に
対する穴開け加工は不要となる。但し、この場合、晶水
液を放出できる位置や向きが限られるため、基部から晶
水液を放出できる構造とする方が、晶水液の放出位置や
放出方向の自由度が高くなる。
As a specific example, for example, as in the hemostatic device 2 shown in FIG. 3 (a), only one liquid outlet 34 is provided on the side surface of the base 32 and crystal water injected from the liquid inlet 36 is provided. It may be capable of releasing liquid. As another specific example, in order to form a liquid flow path in the base like the hemostatic tools 1 and 2 described above, the base is divided into several parts, and a hole is formed, and then the bonding is performed. However, it is necessary to perform a process of forming a hole without dividing the base portion and to fill an unnecessary hole with a resin material. However, as in the hemostatic device 3 shown in FIG.
If the liquid outlet 44 is provided on the fixed end side of the device and the structure is such that the crystal water can be discharged from the liquid inlet 46, drilling of the base is unnecessary. However, in this case, since the position and the direction in which the crystal water can be discharged are limited, the structure in which the crystal water can be discharged from the base increases the degree of freedom in the discharge position and the discharge direction of the crystal water.

【0026】更に、上述の止血用具1〜3を使用する場
合は、一時的とはいえ、血管の末梢側へ血液が全く供給
されくなるため、患者の負担を軽減するには、使用時間
を可能な限り短縮することが望まれるが、図4に示す止
血用具4の様な構造にすれば、血流を遮断した状態にお
いても、血管の末梢側へ血液が供給される。
Furthermore, when the above-mentioned hemostatic devices 1 to 3 are used, the blood is not supplied at all to the peripheral side of the blood vessel, although temporarily, so that the use time is reduced in order to reduce the burden on the patient. Although it is desirable to reduce the length as much as possible, a structure such as the hemostatic device 4 shown in FIG. 4 allows blood to be supplied to the peripheral side of the blood vessel even when the blood flow is blocked.

【0027】より詳しく説明すると、止血用具4は、図
4に示す通り、柔軟に湾曲可能な棒状の基部52の両端
に、基部52よりも外周寸法の大きい止血部54、56
を設けた構造で、基部52の側面には、2本のチューブ
58、60が固定されている。そして、一方の止血部5
4の先端側には、血液流出口62が設けられ、チューブ
58の端部に取り付けられたコネクタ64には、血液注
入口66が設けられ、血液流出口62と血液注入口66
は、チューブ58、基部52および止血部54の内部に
形成された血液流路68を介して連通している。また、
基部52の側面には、液体流出口70が設けられ、チュ
ーブ60の端部に取り付けられたコネクタ72には、液
体注入口74が設けられ、液体流出口70と液体注入口
74は、チューブ60および基部52の内部に形成され
た液体流路76を介して連通している。
More specifically, as shown in FIG. 4, the hemostatic device 4 includes hemostatic portions 54, 56 having larger outer dimensions than the base 52 at both ends of a rod-like base 52 which can be flexibly bent.
The two tubes 58 and 60 are fixed to the side surface of the base 52. And one hemostatic part 5
4, a blood outlet 62 is provided, and a connector 64 attached to the end of the tube 58 is provided with a blood inlet 66, and the blood outlet 62 and the blood inlet 66 are provided.
Communicate with each other through a blood channel 68 formed inside the tube 58, the base 52, and the hemostatic portion 54. Also,
A liquid outlet 70 is provided on a side surface of the base 52, and a liquid inlet 74 is provided on a connector 72 attached to an end of the tube 60. The liquid outlet 70 and the liquid inlet 74 are connected to the tube 60. And a fluid channel 76 formed inside the base 52.

【0028】このように構成された止血用具4であれ
ば、例えばシリンジ(図示略)等を使って液体注入口7
4に晶水液(生理食塩水)を注入することにより、その
晶水液が液体流路76を通って液体流出口70から流出
するため、止血用具4によって血流が遮断されている区
間に付着している血液を洗い流すことができる。また特
に、ポンプ(図示略)等を使って血液注入口66に血液
を注入することにより、その血液が血液流路68を通っ
て血液流出口62から流出するため、止血用具4によっ
て閉塞された箇所よりも末梢側の血管へ、血液を供給す
ることができる。したがって、止血用具4を使用してい
る間の患者の負担は格段に軽減され、より安全に手術を
行うことができるようになり、また患者の手術後の回復
も早くなる。
With the hemostatic device 4 configured as described above, for example, a liquid inlet 7 is formed using a syringe (not shown) or the like.
By injecting the crystallization water (physiological saline) into the liquid flow path 4, the crystallization water flows out of the liquid outlet 70 through the liquid flow path 76, so that the blood flow is blocked by the hemostatic device 4. The attached blood can be washed away. Particularly, when blood is injected into the blood inlet 66 using a pump (not shown) or the like, the blood flows out of the blood outlet 62 through the blood flow channel 68, and is closed by the hemostatic device 4. Blood can be supplied to a blood vessel on the peripheral side of the site. Therefore, the burden on the patient while using the hemostatic device 4 is remarkably reduced, the operation can be performed more safely, and the recovery of the patient after the operation becomes faster.

【0029】なお、上記止血用具4では、末梢側の血管
へ供給する血液を体外から注入する構造としているが、
基部52および止血部54、56を軸方向に貫通する貫
通穴を形成すれば、止血部54、56の両外側が貫通穴
によって連通するので、この様な貫通穴を血液流路とし
て形成しても、止血部54よりも末梢側へ血液を供給す
ることができる。
The hemostatic device 4 has a structure in which blood to be supplied to peripheral blood vessels is injected from outside the body.
If a through-hole is formed through the base 52 and the hemostatic portions 54 and 56 in the axial direction, both outer sides of the hemostatic portions 54 and 56 communicate with each other through the through-holes. Also, blood can be supplied to the peripheral side from the hemostatic portion 54.

【0030】加えて、上記実施形態の説明では特に言及
しなかったが、上記止血部材の寸法については、使用さ
れる血管の内径寸法に応じて適宜止血部の外径を変えれ
ば良く、また、基部の軸方向長さも適宜調整すればよ
い。また、本発明の止血用具は、CABGの際に使用す
る他にも、血管の所定区間の血流を遮断する手段として
適宜使用することができ、その場合も、血液遮断箇所の
近傍の血液を簡単に除去でき、薬液の放出なども容易に
実施できるという効果がある。
In addition, although not particularly mentioned in the description of the above-described embodiment, the outer diameter of the hemostatic portion may be appropriately changed according to the inner diameter of the blood vessel to be used. The axial length of the base may be adjusted as appropriate. Further, the hemostatic device of the present invention can be appropriately used as a means for blocking blood flow in a predetermined section of a blood vessel, in addition to the use at the time of CABG. There is an effect that it can be easily removed, and the release of the chemical solution can be easily performed.

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

【図1】 実施形態として例示した止血用具であり、
(a)はその側面図、(b)はその従断面図である。
FIG. 1 is a hemostatic device exemplified as an embodiment,
(A) is a side view thereof, and (b) is a sectional view thereof.

【図2】 実施形態として例示した止血用具の使用状態
を示す概略断面図である。
FIG. 2 is a schematic cross-sectional view illustrating a use state of the hemostatic device exemplified as the embodiment.

【図3】 (a)、(b)共に、それぞれ変形例として
示した止血用具の使用状態を示す概略断面図である。
FIGS. 3A and 3B are schematic cross-sectional views each showing a usage state of a hemostatic device shown as a modified example.

【図4】 更に別の変形例として例示した止血用具の従
断面図である。
FIG. 4 is a sectional view of a hemostatic device exemplified as still another modified example.

【図5】 従来の止血用具の使用手順を示すための概略
断面図である。
FIG. 5 is a schematic sectional view showing a procedure for using a conventional hemostatic device.

【符号の説明】[Explanation of symbols]

1,2,3,4・・・止血用具、12,32,52・・
・基部、14,54・・・止血部、18,42,58,
60・・・チューブ、20,64,72・・・コネク
タ、22,34,44,70・・・液体流出口、24,
36,46,74・・・液体注入口、26,76・・・
液体流路、62・・・血液流出口、66・・・血液注入
口、68・・・血液流路。
1, 2, 3, 4 ... hemostatic device, 12, 32, 52 ...
・ Base, 14, 54 ... hemostatic part, 18, 42, 58,
60 ... tube, 20, 64, 72 ... connector, 22, 34, 44, 70 ... liquid outlet, 24,
36, 46, 74 ... liquid inlet, 26, 76 ...
Liquid flow path, 62 blood outlet, 66 blood inlet, 68 blood flow path.

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 柔軟に湾曲可能な棒状の基部の両端に、
該基部よりも外周寸法の大きい止血部を設けた構造で、
血管の側面に形成される穴から血管内に挿入されて、前
記両端の止血部が前記穴の両側に配置され、その状態で
前記止血部の外周が全周にわたって血管の内壁に密接
し、前記穴の両側から穴側へと流入する血液を遮断する
止血用具において、 前記両端の止血部の間に設けられ、外部へ液体を流出さ
せる液体流出口と、 該液体流出口と液体の供給源とを連通し、該供給源から
前記液体流出口へ液体を誘導する液体流路とを備え、 前記液体流出口から前記穴の近傍に液体を放出可能とし
たことを特徴とする止血用具。
1. At both ends of a rod-shaped base that can be flexibly bent,
With a structure provided with a hemostatic part having a larger outer peripheral dimension than the base part,
Inserted into the blood vessel through a hole formed in the side surface of the blood vessel, the hemostatic portions at both ends are arranged on both sides of the hole, and in this state, the outer periphery of the hemostatic portion is in close contact with the inner wall of the blood vessel over the entire circumference, In a hemostatic device for blocking blood flowing from both sides of the hole to the hole side, a liquid outlet provided between the hemostatic portions at the both ends and allowing liquid to flow out to the outside; a liquid outlet and a liquid supply source; And a liquid flow path that guides a liquid from the supply source to the liquid outlet, wherein the liquid can be discharged from the liquid outlet to the vicinity of the hole.
【請求項2】 請求項1記載の止血用具において、 前記基部の側面から液体を注入可能な液体注入口が設け
られ、 前記液体流出口が、前記基部の側面に設けられ、 前記液体流路が、前記液体注入口と前記液体流出口とを
連通する形で形成されていることを特徴とする止血用
具。
2. The hemostatic device according to claim 1, wherein a liquid inlet capable of injecting liquid from a side surface of the base is provided, the liquid outlet is provided on a side surface of the base, and the liquid flow path is provided. A hemostatic device formed so as to communicate the liquid inlet and the liquid outlet.
【請求項3】 請求項1又は請求項2記載の止血用具に
おいて、 一方の止血部の先端側に設けられ、外部へ血液を流出さ
せる血液流出口と、 該血液流出口と血液の供給源とを連通し、該供給源から
前記血液流出口へ血液を誘導する血液流路とを備え、 前記血液流出口から流出させた血液を、前記一方の止血
部によって閉塞された箇所よりも末梢側へ供給可能とし
たことを特徴とする止血用具。
3. The hemostatic device according to claim 1, wherein the blood outlet is provided at a distal end side of one of the hemostatic portions and allows blood to flow out, and the blood outlet and a blood supply source. And a blood flow path for guiding blood from the supply source to the blood outlet. The blood flowing out of the blood outlet is located more peripherally than the place closed by the one hemostatic portion. A hemostatic device characterized in that it can be supplied.
JP28390496A 1996-10-25 1996-10-25 Hemostatic device Expired - Lifetime JP3724895B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP28390496A JP3724895B2 (en) 1996-10-25 1996-10-25 Hemostatic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28390496A JP3724895B2 (en) 1996-10-25 1996-10-25 Hemostatic device

Publications (2)

Publication Number Publication Date
JPH10118081A true JPH10118081A (en) 1998-05-12
JP3724895B2 JP3724895B2 (en) 2005-12-07

Family

ID=17671697

Family Applications (1)

Application Number Title Priority Date Filing Date
JP28390496A Expired - Lifetime JP3724895B2 (en) 1996-10-25 1996-10-25 Hemostatic device

Country Status (1)

Country Link
JP (1) JP3724895B2 (en)

Also Published As

Publication number Publication date
JP3724895B2 (en) 2005-12-07

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