阅读说明：本技术 三腔双囊血液氧合原位灌注系统 (Three-cavity double-bag blood oxygenation in-situ perfusion system ) 是由 胡春晓 毛文君 纪勇 秦钟 王雁娟 高宏 于 2019-11-25 设计创作，主要内容包括：本发明涉及一种灌注系统,尤其是一种三腔双囊血液氧合原位灌注系统,属于血液氧合灌注的技术领域。抽取灌注置管能穿置进入上腔静脉、下腔静脉内,通过第一囊体、第二囊体能对上腔静脉、下腔静脉进行所需的封堵,从而上腔静脉、下腔静脉内的血液能分别通过血液抽取第一腔、血液抽取第二腔抽出,通过抽取驱动氧合灌注机构能对抽取出的血液与氧气进行氧合,并在氧合后经由血液灌注腔以及血液灌注孔灌注到心脏的右心房内,能有效实现血液氧合后的灌注,降低心脏负担；在使用过程中,仅需对股静脉或颈静脉穿刺后,将抽取灌注置管置入到上腔静脉、下腔静脉内所需的位置即可,能有效减少创伤,安全可靠。(The invention relates to a perfusion system, in particular to a three-cavity double-bag blood oxygenation in-situ perfusion system, belonging to the technical field of blood oxygenation perfusion. The extraction perfusion tube can penetrate into the superior vena cava and the inferior vena cava, the superior vena cava and the inferior vena cava can be sealed and blocked as required by the first bag body and the second bag body, so that blood in the superior vena cava and the inferior vena cava can be respectively extracted through the first blood extraction cavity and the second blood extraction cavity, the extracted blood and oxygen can be oxygenated by the extraction and driving oxygenation perfusion mechanism, and the oxygenated blood is perfused into the right atrium of the heart through the blood perfusion cavity and the blood perfusion hole after oxygenation, so that perfusion after blood oxygenation can be effectively realized, and the heart burden is reduced; in the using process, after the femoral vein or the jugular vein is punctured, the extraction perfusion tube is placed in the position required by the superior vena cava and the inferior vena cava, so that the wound can be effectively reduced, and the operation is safe and reliable.)

1. A three-cavity double-bag blood oxygenation in-situ perfusion system is characterized in that: comprises a blood extraction perfusion mechanism and an extraction driving oxygenation perfusion mechanism which is in adaptive connection with the blood extraction perfusion mechanism;

the blood extracting and filling mechanism comprises an extracting and filling device (1) which can be placed in a superior vena cava (35) and an inferior vena cava (36), a first capsule body (2) and a second capsule body (3) are arranged on the extracting and filling device (1), the first capsule body (2) and the second capsule body (3) are wrapped on the circumferential outer wall of the extracting and filling device (1), and the first capsule body (2) is adjacent to the head end of the extracting and filling device (1); a first blood extraction cavity (16), a second blood extraction cavity (17) and a blood perfusion cavity (18) are arranged in the extraction perfusion tube (1); the blood perfusion cavity (18) is communicated with a blood perfusion hole (4) on the outer wall of the pumping perfusion tube (1), and the blood perfusion hole (3) is positioned between the first capsule body (2) and the second capsule body (3); the second blood extraction cavity (17) is communicated with a blood extraction liquid inlet hole (5) on the extraction perfusion tube (1), the blood extraction liquid inlet hole (5) is positioned between the second capsule body (3) and the tail end of the extraction perfusion tube (1), the first blood extraction cavity (16) is distributed along the length direction of the extraction perfusion tube (1), and the first blood extraction cavity (16) penetrates through the extraction perfusion tube (1);

after the pumping perfusion cannula (1) is placed in a superior vena cava (35) and an inferior vena cava (36), the first capsule body (2) and the second capsule body (3) are respectively positioned at two sides of a blood inlet of the right atrium, the venous lumens where the first capsule body (2) and the second capsule body (3) are positioned can be respectively blocked, and the blood perfusion hole (4) corresponds to the blood inlet of the right atrium; the blood pumping and oxygenation driving perfusion mechanism can respectively pump the blood in the superior vena cava (35) and the inferior vena cava (36) through the blood pumping first cavity (16) and the blood pumping second cavity (17), can oxygenate the pumped blood and oxygen in the pumping and oxygenation driving perfusion mechanism, and can perfuse the oxygenated blood into the right atrium of the heart (37) through the blood perfusion cavity (18) and the blood perfusion hole (4).

2. The three-chamber double-bag blood oxygenation in-situ perfusion system of claim 1, which is characterized in that: still including can with first utricule of first utricule (2) intercommunication fills trachea (6) and can with second utricule of second utricule (3) intercommunication fills trachea (8) set up first utricule and fills trachea seal valve (7) on first utricule fills trachea (6), fill trachea seal valve (7) and first utricule and fill trachea (6) and can carry out required inflation or gassing to first utricule (2) through first utricule, set up second utricule and fill trachea seal valve (9) on second utricule fills trachea (8), fill trachea seal valve (9) and second utricule and fill trachea (8) and can carry out required inflation or gassing to second utricule (3) through second utricule.

3. The three-chamber double-bag blood oxygenation in-situ perfusion system of claim 1, which is characterized in that: a first connecting pipe (10) of the blood extracting and placing pipe communicated with a first blood extracting cavity (16), a second connecting pipe (14) of the blood extracting and placing pipe communicated with a second blood extracting cavity (17) and a connecting pipe (12) of the blood extracting and placing pipe communicated with a blood injecting cavity (18) are arranged at the tail end of the extracting and placing pipe (1);

the first connecting tube (10) of the blood extracting and placing tube and the second connecting tube (14) of the blood extracting and placing tube can be communicated with a blood oxygenation tube group in the extraction and drive oxygenation perfusion mechanism, the blood oxygenation tube set comprises a blood oxygenation circulation tube for allowing blood to circulate and an oxygen circulation sleeve (26) sleeved on the blood oxygenation circulation tube, the blood oxygenation circulating tube comprises a water-blocking air-permeable part (31) positioned in an oxygen circulating sleeve (26) and blood circulating connection parts (24) positioned at two ends of the oxygen circulating sleeve (26), oxygen entering the oxygen circulating tube (26) from an oxygen inlet (25) of the oxygen circulating sleeve (26) can be oxygenated with blood in the blood oxygenation circulating tube through the water-blocking air-permeable part (31), and the oxygenated blood is infused into the right atrium of the heart (37) through a blood infusion cavity (18) and a blood infusion hole (4) by an oxygenation blood conveying driving device (28).

4. The three-chamber double-bag blood oxygenation in-situ perfusion system of claim 3, which is characterized in that: a liquid outlet of the oxygenation blood conveying driving device (28) is in adaptive connection with the blood perfusion tube connecting tube (12) through an oxygenated blood conveying tube (34); also comprises a blood heating device (29) which can heat the blood in the blood conveying pipe (34) after oxygenation.

5. The three-chamber double-bag blood oxygenation in-situ perfusion system of claim 4, which is characterized in that: the oxygenation device also comprises a liquid medicine injection port capable of injecting required liquid medicine into the oxygenated blood conveying pipe (34), a liquid medicine injection port sealing cap capable of sealing the liquid medicine injection port and a free oxygen release port (27) capable of releasing oxygen in the oxygen circulating pipe (26), wherein an oxygen release switch capable of controlling the oxygen release state is arranged in the free oxygen release port (27).

6. The three-chamber double-bag blood oxygenation in-situ perfusion system of claim 3, which is characterized in that: a first connecting pipe joint (11) of the blood extracting and placing pipe is arranged at the end part of the first connecting pipe (10) of the blood extracting and placing pipe, the first connecting pipe (10) of the blood extracting and placing pipe is connected with one end of the first connecting pipe (21) of the extracting and driving pipe through the first connecting pipe joint (11) of the blood extracting and placing pipe, and the other end of the first connecting pipe (21) of the extracting and driving pipe is connected with a blood collecting device (23) of the extracting and driving pipe;

a second connecting pipe joint (15) of the blood extracting and placing pipe is arranged at the end part of the second connecting pipe (14) of the blood extracting and placing pipe, the second connecting pipe (14) of the blood extracting and placing pipe is connected with one end of the second connecting pipe (22) of the extracting and driving pipe through the second connecting head (15) of the blood extracting and placing pipe, the other end of the second connecting pipe (22) of the extracting and driving pipe is connected with an extracting and driving blood container (23), and the extracting and driving blood container (23) is connected with a blood oxygenation circulation pipe; blood extraction pressure measuring joints (32) are arranged on the first connecting pipe (10) of the blood extraction tube and the second connecting pipe (14) of the blood extraction tube.

7. The three-chamber double-bag blood oxygenation in-situ perfusion system of claim 6, which is characterized in that: a blood drawing drive is provided on the drawing drive first connecting pipe (21) and/or the drawing drive second connecting pipe (22).

8. The three-chamber double-bag blood oxygenation in-situ perfusion system of claim 4, which is characterized in that: and a blood perfusion pressure measuring joint (33) is arranged on the blood perfusion tube connecting pipe (12), and the blood heating device (29) comprises a water bath heating structure.

9. The three-chamber double-bag blood oxygenation in-situ perfusion system of claim 1, which is characterized in that: when an extraction perfusion placing tube (1) is respectively placed in the superior vena cava (35) and the inferior vena cava (36), a blood perfusion hole (4) of the extraction perfusion placing tube (1) corresponds to a blood liquid inlet of the right atrium; the head end of each extraction perfusion tube (1) is provided with a magnetic body, and the head ends of the two extraction perfusion tubes (1) are closely aligned after being mutually attracted through the corresponding magnetic bodies.

10. The three-chamber double-bag blood oxygenation in-situ perfusion system of claim 3, which is characterized in that:

the water-blocking breathable part (31) is made of a water-blocking breathable film.

Technical Field

The invention relates to a perfusion system, in particular to a three-cavity double-bag blood oxygenation in-situ perfusion system, belonging to the technical field of blood oxygenation perfusion.

Background

Extracorporeal membrane pulmonary oxygenation (ECMO) is a treatment commonly used in patients to replace or assist in the respiratory and/or cardiac function of medically disabled patients. In its broadest sense, ECMO uses one or more catheters and pump systems to draw blood out of the patient. The blood is then pumped through a gas exchanger where carbon dioxide (CO) is present₂) Is removed from the blood and oxygen (O)₂) Is added. The oxygenated blood is then pumped back to the patient's circulatory system where it can be distributed to the rest of the body. In some ECMO systems, blood is drawn from the venous system and returned to the arterial system. In other forms, blood is drawn from and returned to the venous system.

ECMO is typically accomplished by a large-bore cannula that is inserted percutaneously into a major peripheral vein or major peripheral artery of the body (e.g., femoral vein, subclavian vein, jugular vein; femoral artery, subclavian artery, etc.). However, many patients do not work properly in the right ventricle and/or the pulmonary circulation is a significant problem, making this form of treatment ineffective. Meanwhile, in the case of a patient with lung failure or the like, when blood is drawn from the femoral artery, the amount of blood perfusion at the drawing site is reduced, and the heart load of the patient is increased. In addition, the conventional ECMO requires a tube to be cut from a plurality of puncture sites when used, which causes a large wound.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a three-cavity double-bag blood oxygenation in-situ perfusion system which is compact in structure, can effectively realize perfusion after blood oxygenation, reduces cardiac burden and trauma, and is safe and reliable.

According to the technical scheme provided by the invention, the three-cavity double-bag blood oxygenation in-situ perfusion system comprises a blood extraction perfusion mechanism and an extraction driving oxygenation perfusion mechanism which is in adaptive connection with the blood extraction perfusion mechanism;

the blood extracting and filling mechanism comprises an extracting and filling tube which can be placed in the superior vena cava and the inferior vena cava, a first capsule and a second capsule are arranged on the extracting and filling tube, the first capsule and the second capsule are wrapped on the circumferential outer wall of the extracting and filling tube, and the first capsule is adjacent to the head end of the extracting and filling tube; a first blood extraction cavity, a second blood extraction cavity and a blood perfusion cavity are arranged in the extraction perfusion tube; the blood perfusion cavity is communicated with a blood perfusion hole on the outer wall of the pumping perfusion tube, and the blood perfusion hole is positioned between the first bag body and the second bag body; the second blood pumping cavity is communicated with a blood pumping liquid inlet hole on the pumping perfusion tube, the blood pumping liquid inlet hole is positioned between the second capsule body and the tail end of the pumping perfusion tube, the first blood pumping cavity is distributed along the length direction of the pumping perfusion tube, and the first blood pumping cavity penetrates through the pumping perfusion tube;

after the perfusion catheter is drawn and placed into the superior vena cava and the inferior vena cava, the first bag body and the second bag body are respectively positioned at two sides of a blood inlet of the right atrium, the venous lumens can be respectively blocked by the first bag body and the second bag body, and the blood perfusion hole corresponds to the blood inlet of the right atrium; the extraction driving oxygenation perfusion mechanism can respectively extract blood in the superior vena cava and the inferior vena cava through the blood extraction first cavity and the blood extraction second cavity, can oxygenate the extracted blood and oxygen in the extraction driving oxygenation perfusion mechanism, and can perfuse the oxygenated blood into the right atrium of the heart through the blood perfusion cavity and the blood perfusion hole.

The air inflation and deflation device comprises a first bag body air inflation and deflation pipe and a second bag body air inflation and deflation pipe, wherein the first bag body air inflation and deflation pipe is communicated with the first bag body, the first bag body air inflation and deflation pipe sealing valve is arranged on the first bag body air inflation and deflation pipe, the first bag body air inflation and deflation pipe sealing valve and the first bag body air inflation and deflation pipe can be used for inflating or deflating the first bag body in a required mode, the second bag body air inflation and deflation pipe sealing valve is arranged on the second bag body air inflation and deflation pipe, and the second bag body air inflation and deflation pipe sealing valve and the second bag body air inflation and deflation pipe can be used for inflating or deflating the.

The tail end of the drawing and perfusion tube is provided with a first connecting tube of the blood drawing tube communicated with the first blood drawing cavity, a second connecting tube of the blood drawing tube communicated with the second blood drawing cavity and a connecting tube of the blood perfusion tube communicated with the blood perfusion cavity;

the blood oxygenation circulating tube comprises a water-blocking ventilating part and blood circulation connecting parts, wherein the water-blocking ventilating part is positioned in the oxygen circulation circulating tube, the blood circulation connecting parts are positioned at two ends of the oxygen circulation circulating tube, oxygen entering the oxygen circulation circulating tube from an oxygen inlet of the oxygen circulation circulating tube can be oxygenated with blood in the blood oxygenation circulating tube through the water-blocking ventilating part, and the oxygenated blood is conveyed to the right atrium of the heart through the oxygenated blood conveying and driving device via the blood perfusion cavity and the blood perfusion hole.

The liquid outlet of the oxygenation blood conveying driving device is in adaptive connection with the blood perfusion tube connecting tube through the oxygenated blood conveying tube; the blood heating device can heat the blood in the blood conveying pipe after oxygenation.

The oxygenation blood conveying tube is characterized by further comprising a liquid medicine injection port capable of injecting required liquid medicine into the oxygenated blood conveying tube, a liquid medicine injection port sealing cap capable of sealing the liquid medicine injection port and a free oxygen release port capable of releasing oxygen in the oxygen circulating tube, wherein an oxygen release switch capable of controlling the oxygen release state is arranged in the free oxygen release port.

The end part of the first connecting pipe of the blood pumping and placing pipe is provided with a first connecting pipe joint of the blood pumping and placing pipe, the first connecting pipe of the blood pumping and placing pipe is connected with one end of the first connecting pipe of the pumping and driving pipe through the first connecting pipe joint of the blood pumping and placing pipe, and the other end of the first connecting pipe of the pumping and driving pipe is connected with the blood drawing and driving container;

the end part of the second connecting pipe of the blood extracting and placing pipe is provided with a second connecting pipe joint of the blood extracting and placing pipe, the second connecting pipe of the blood extracting and placing pipe is connected with one end of the second connecting pipe of the extracting and driving pipe through a second connecting head of the blood extracting and placing pipe, the other end of the second connecting pipe of the extracting and driving pipe is connected with an extracting and driving blood container, and the extracting and driving blood container is connected with a blood oxygenation circulation pipe; blood extraction pressure measuring joints are arranged on the first connecting pipe of the blood extraction tube and the second connecting pipe of the blood extraction tube.

A blood draw driver is provided on the draw driving first connector and/or the draw driving second connector.

And a blood perfusion pressure measuring joint is arranged on the blood perfusion tube connecting pipe, and the blood heating device comprises a water bath heating structure.

When an extraction perfusion catheter is respectively placed in the superior vena cava and the inferior vena cava, a blood perfusion hole of the extraction perfusion catheter corresponds to a blood inlet of the right atrium; the head end of putting the pipe all sets up a magnetic substance at every extraction perfusion, and the head end of putting the pipe is filled in to two extractions closely aligns through corresponding magnetic substance after attracting each other.

The water-blocking breathable part is made of a water-blocking breathable film.

The invention has the advantages that: the extraction perfusion tube can penetrate into the superior vena cava and the inferior vena cava, the superior vena cava and the inferior vena cava can be sealed and blocked as required by the first bag body and the second bag body, so that blood in the superior vena cava and the inferior vena cava can be respectively extracted through the first blood extraction cavity and the second blood extraction cavity, the extracted blood and oxygen can be oxygenated by the extraction and driving oxygenation perfusion mechanism, and the oxygenated blood is perfused into the right atrium of the heart through the blood perfusion cavity and the blood perfusion hole after oxygenation, so that perfusion after blood oxygenation can be effectively realized, and the heart burden is reduced; in the using process, after the femoral vein or the jugular vein is punctured, the extraction perfusion tube is placed in the position required by the superior vena cava and the inferior vena cava, so that the wound can be effectively reduced, and the operation is safe and reliable.

Drawings

FIG. 1 is a perspective view of an aspiration infusion set of the present invention.

FIG. 2 is a schematic view of the structure of the aspiration perfusion cannula of the present invention.

FIG. 3 is a schematic view of the distribution of the first blood drawing lumen, the second blood drawing lumen, and the blood perfusion lumen within the draw perfusion cannula in accordance with the present invention.

FIG. 4 is a schematic view of the distribution of the blood drawing primary chamber and the blood perfusion chambers within the drawing perfusion tube of the present invention.

Fig. 5 is a schematic view of a first blood drawing lumen of the present invention within a drawing perfusion cannula.

FIG. 6 is a perspective view of an embodiment of the present invention.

Fig. 7 is a schematic structural diagram of fig. 6.

FIG. 8 is a schematic diagram of another embodiment of the present invention.

Fig. 9 is a state diagram of the present invention.

Fig. 10 is another state diagram of the present invention.

Description of reference numerals: 1-a suction perfusion tube, 2-a first balloon, 3-a second balloon, 4-a blood perfusion hole, 5-a blood suction inlet hole, 6-a first balloon inflation/deflation tube, 7-a first balloon inflation/deflation tube sealing valve, 8-a second balloon inflation/deflation tube, 9-a second balloon inflation/deflation tube sealing valve, 10-a blood suction tube first connecting tube, 11-a blood suction tube first connecting tube, 12-a blood suction tube connecting tube, 13-a blood suction tube connecting tube, 14-a blood suction tube second connecting tube, 15-a blood suction tube second connecting tube, 16-a blood suction first cavity, 17-a blood suction second cavity, 18-a blood perfusion cavity, 19-a first balloon inflation/deflation tube inner part, 20-a second balloon inflation/deflation tube inner part, 2-a blood suction tube first connecting tube, 6-a blood suction tube first connecting tube, 17-a blood suction tube second cavity, 18-a blood perfusion cavity, 19-a first, 21-extraction driving first connecting pipe, 22-extraction driving second connecting pipe, 23-extraction driving blood container, 24-blood circulation connecting part, 25-oxygen inlet, 26-oxygen circulation sleeve pipe, 27-free oxygen release port, 28-oxygenation blood conveying driving device, 29-blood heating device, 30-liquid medicine injection connecting pipe, 31-water-blocking ventilating part, 32-liquid extraction pressure measuring joint, 33-blood perfusion pressure measuring joint, 34-conveying perfusion connecting pipe, 35-superior vena cava, 36-inferior vena cava and 37-heart.

Detailed Description

The invention is further illustrated by the following specific figures and examples.

In order to effectively realize the perfusion after the blood oxygenation, reduce the cardiac burden and reduce the trauma, the invention comprises a blood extraction perfusion mechanism and an extraction driving oxygenation perfusion mechanism which is in adaptive connection with the blood extraction perfusion mechanism;

the blood extracting and filling mechanism comprises an extracting and filling tube 1 which can be placed in a superior vena cava 35 and an inferior vena cava 36, a first capsule body 2 and a second capsule body 3 are arranged on the extracting and filling tube 1, the first capsule body 2 and the second capsule body 3 are wrapped on the circumferential outer wall of the extracting and filling tube 1, and the first capsule body 2 is adjacent to the head end of the extracting and filling tube 1; a first blood drawing cavity 16, a second blood drawing cavity 17 and a blood perfusion cavity 18 are arranged in the drawing perfusion tube 1; the blood perfusion cavity 18 is communicated with a blood perfusion hole 4 on the outer wall of the pumping perfusion tube 1, and the blood perfusion hole 4 is positioned between the first capsule body 2 and the second capsule body 3; the second blood-pumping cavity 17 is communicated with a blood-pumping liquid inlet hole 5 on the pumping perfusion tube 1, the blood-pumping liquid inlet hole 5 is positioned between the second capsule 3 and the tail end of the pumping perfusion tube 1, the first blood-pumping cavities 16 are distributed along the length direction of the pumping perfusion tube 1, and the first blood-pumping cavities 16 penetrate through the pumping perfusion tube 1;

after the pumping perfusion indwelling tube 1 is placed in the superior vena cava 35 and the inferior vena cava 36, the first capsule body 2 and the second capsule body 3 are respectively positioned at two sides of a blood inlet of the right atrium, the venous lumens can be respectively blocked by the first capsule body 2 and the second capsule body 3, and the blood perfusion hole 4 corresponds to the blood inlet of the right atrium; the blood pumping and oxygenation perfusion mechanism can respectively pump the blood in the superior vena cava 35 and the inferior vena cava 36 through the blood pumping first cavity 16 and the blood pumping second cavity 17, can oxygenate the pumped blood with oxygen in the blood pumping and oxygenation perfusion mechanism, and can perfuse the oxygenated blood into the right atrium of the heart 37 through the blood perfusion cavity 18 and the blood perfusion hole 4.

Specifically, the blood pumping and perfusion mechanism and the pumping and driving oxygenation and perfusion mechanism are both made of materials meeting medical standards, and the specific material types can be selected according to needs, which are well known to those skilled in the art and will not be described herein again.

The extraction perfusion tube 1 is tubular, and the extraction perfusion tube 1 can be placed in the superior vena cava 35 and the inferior vena cava 36, so that blood in the superior vena cava 35 and the inferior vena cava 36 can be extracted. The first capsule body 2 and the second capsule body 3 are generally air bags, the first capsule body 2 and the second capsule body 3 are annular, namely the first capsule body 2 and the second capsule body 3 are wrapped on the circumferential outer wall of the extraction perfusion tube 1, the first capsule body 2 is adjacent to the head end of the extraction perfusion tube 1, the second capsule body 3 is positioned between the first capsule body 2 and the tail end of the extraction perfusion tube 1, generally, the head end of the extraction perfusion tube 1 can be penetrated into the superior vena cava 35 and the end part of the inferior vena cava 36, and when the device is used, the tail end of the extraction perfusion tube 1 is positioned outside the body.

Set up first chamber 16 of blood extraction, blood extraction second chamber 17 and blood perfusion chamber 18 in drawing perfusion tube 1, the first chamber 16 of blood extraction, blood extraction second chamber 17 and blood perfusion chamber 18 are isolated each other, and first chamber 16 of blood extraction, blood extraction second chamber 17 and blood perfusion chamber 18 are each other not communicated between blood extraction promptly. Generally, the first blood-drawing lumen 16, the second blood-drawing lumen 17, and the blood perfusion lumen 18 are all distributed along the length of the withdrawal site 1. The blood perfusion tube 1 is further provided with a blood perfusion hole 4 and a blood extraction liquid inlet hole 5, the blood perfusion hole 4 is communicated with a blood perfusion cavity 18, the blood extraction liquid inlet hole 5 is communicated with a blood extraction second cavity 17, and of course, the blood extraction first cavity 16 is communicated with an end hole at the head end of the blood perfusion tube 1, as shown in fig. 1, 2, 3, 4 and 5. Blood perfusion hole 4 is located between first utricule 2 and the second utricule 3, and blood extraction feed liquor hole 5 is located between the second utricule 3 and the tail end of extraction perfusion tube 1, and blood passes through blood extraction feed liquor hole 5 promptly and can get into blood extraction second chamber 17 in, can get into blood extraction first chamber 16 through the end opening of extraction perfusion tube 1 head end, and the blood that gets into in the blood perfusion chamber 18 can carry out required blood perfusion output through blood perfusion hole 4.

In the embodiment of the present invention, the extraction infusion set 1 can be inserted into the femoral vein through the femoral vein, and at this time, the head end of the extraction infusion set 1 is located in the superior vena cava 35, and the second balloon 3 is located in the inferior vena cava 36, as shown in fig. 10; alternatively, the withdrawal infusion set 1 may be placed through the jugular vein with the head end of the withdrawal infusion set 1 positioned in the inferior vena cava 36 and the second balloon 3 positioned in the superior vena cava 35, as shown in FIG. 9. When putting into through different positions puncture back promptly, the position at first utricule 2, second utricule 3 place is different, but can the vein lumen at shutoff place through first utricule 2, second utricule 3. Namely, the superior vena cava 35 or the inferior vena cava 36 can be blocked by the first capsule body 2, the inferior vena cava 36 or the superior vena cava 35 can be blocked by the second capsule body 3, and no matter how the positions of the first capsule body 2 and the second capsule body 3 are, the blood perfusion hole 4 on the pumping perfusion tube 1 needs to correspond to the blood inlet of the right atrium, so that oxygenated blood can be perfused into the blood inlet of the right atrium through the blood perfusion hole 4.