CN103272293A - Portable life resuscitation machine - Google Patents
Portable life resuscitation machine Download PDFInfo
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- CN103272293A CN103272293A CN2013102418883A CN201310241888A CN103272293A CN 103272293 A CN103272293 A CN 103272293A CN 2013102418883 A CN2013102418883 A CN 2013102418883A CN 201310241888 A CN201310241888 A CN 201310241888A CN 103272293 A CN103272293 A CN 103272293A
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- 210000004369 blood Anatomy 0.000 claims abstract description 112
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 43
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 43
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
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Abstract
The invention provides a portable life resuscitation machine which is mainly composed of a suction pump, a temperature varying container, an oxygenator, a blood clearing filter, a delivery pump, a warmer, a control circuit system, a display, an operation keyboard, an oxygen and air mixing controller, an oxygen and air flow meter and a power supply. A device for driving blood for saving a patient adopts the structure of a rotor pump, rotating speed of a motor of the rotor pump is accurate under control, the fluid dynamics principle is fully utilized to enable blood to obtain power in a smooth environment, effects of rotor rotating on the blood are reduced as much as possible, damage to the blood is reduced, and thrombus forming possibility is reduced. A flow outlet of the rotor pump is designed to be L-shaped, the rotating blocking structure and hydraulic conversion are adopted, layout of rotor blades is designed according to fluid dynamics, blood disturbance is reduced, and thrombus forming is prevented. The machine can slowly warm the blood of a patient losing vital signs due to coldness and conduct oxygenation properly (as the oxygenation function of drowners is reduced due to the fact that the lung of a drowner is immersed into water) to enable the patient to be resuscitated slowly from 'hibernation', and the effect that the dying is brought back to life can be achieved.
Description
Technical Field
The invention discloses a portable life resuscitator, which is used for treating a patient who is dead due to the fact that the patient loses vital sign misdiagnosis because of cardiac arrest and belongs to the field of medical equipment.
Background
Today, with the rapid development of science and technology, various professional medical instruments bring good news to patients. However, due to the progressive nature of human cognition, there are currently many patients who lose life because no medication is available or because treatment is not timely performed.
As a specific example, the body temperature of a drowning person is often reduced to below 20 degrees due to long-term soaking in cold water, and the heart may stop jumping. When these drowners are salvaged, the traditional medical opinion can misdiagnose that they are "dead" because they have no vital signs. However, international reports have recently demonstrated that these "dead" patients, if properly treated, are completely likely to survive and that the patient will not be injured by the cardiac arrest because of the immediate treatment.
Modern medical research has found that when the body temperature of a human body drops sufficiently, the human body enters a "hibernating" state similar to that of an animal. At this time, the energy consumption and oxygen consumption of the human body are reduced to very low levels, and thus the human body is often misdiagnosed as "dead" due to the lack of vital signs. In this case, if the blood can be warmed up slowly and oxygenated properly (drowning people have reduced oxygenation due to lung immersion), the patient can be resuscitated from "hibernation" slowly, "and" die back ".
The medical instrument similar to the present invention is an artificial heart-lung machine, which is a device for leading venous blood flowing into the heart out of the body, exchanging oxygen and carbon dioxide, regulating temperature, filtering and returning to the artery in the body for supporting the life. However, the cabinet-type heart-lung machine widely used in the heart operating room of the hospital at present has the defects of large volume, heavy weight and need of an external power supply. Therefore, the artificial heart-lung machine can not be used outdoors without an external power supply, and can not be used on an ambulance or in a war with a military.
In addition, most of the cabinet type heart-lung machines use a flow meter to control the rotating speed, and have the defects of complicated structure, difficult long-time stable operation of the blood pump and inconvenient operation. Experiments prove that when the blood pump for driving blood to flow is determined, if the rotating speed of the motor is stable and accurate, the flow can be automatically calculated by the computer according to the rotating speed, so that a flow meter is not needed.
Disclosure of Invention
The invention provides a portable life recovery machine, which is a portable life recovery auxiliary medical instrument, is specially designed for ambulances and rescue helicopters, and has the characteristics of simple structure, convenient use, low energy consumption and the like.
The invention discloses a portable life resuscitator, which comprises the following technical solutions:
mainly comprises a suction pump, a temperature-changing container, an oxygenator, a blood cleaning filter, a delivery pump, a warmer, a control circuit system (central processing unit), a display, an operation keyboard, an oxygen and air mixing controller, an oxygen air flowmeter and a power supply device; wherein,
the suction pump is connected with the temperature-changing container, the oxygenator, the blood cleaning filter and the delivery pump in sequence, so as to lead the blood out of the vein vessel and lead the blood into the temperature-changing container;
the temperature-variable container slowly heats the blood, and the blood is input into the oxygenator after being subjected to temperature regulation;
the oxygenator is connected with the oxygen and air mixing controller, and exchanges oxygen and carbon dioxide for the blood conveyed by the temperature-changing container to realize the blood oxygenation, and the oxygen and air flow meter displays the respective flow rates of oxygen and air;
-the blood cleaning filter cleans and filters the oxygenated blood;
-the oxygenated and cleaned blood is returned to the artery by the delivery pump;
-the warmer produces temperature-regulated water, which is supplied to the temperature-variable container for temperature-varying the blood;
the control circuit system (central processor) is connected to the suction pump and the delivery pump, and operates smoothly at a suitable speed to allow blood to flow out of the venous blood vessel and finally back to the artery.
The suction pump and the delivery pump both adopt rotor pump structures, and the upper end and the lower end of the pump body are provided with an outflow port and an inflow port; the outflow port is in a bell mouth shape, and the inner wall of the outflow port is provided with a rotation blocking rib; the outflow port is communicated with the pump cavity through an L-shaped speed reducing pipe; the rotor shaft is arranged in the pump cavity through a bearing seat and connected with the motor and the control circuit, and spiral blades are distributed on the rotor shaft.
The rotor pump of the invention is characterized in that: the rotor directly drives the blood to flow, and the energy consumption for driving the blood to flow is relatively small, so that a small motor can be selected to push the blood to flow, and the portable life resuscitator can realize long-time operation as far as possible under the drive of a limited battery.
The working process of the invention is as follows:
the blood flow for rescuing patients is mainly completed by the cooperation of two rotor pumps, namely a suction pump and a delivery pump; the suction pump leads the blood out of the vein vessel, and the delivery pump returns the blood after oxidation cleaning to the artery. The two rotor pumps run at a stable rotating speed under the control and regulation of a control circuit system (a central processing unit) so that blood flows out of the vein and finally flows back to the artery; the temperature-changing container is an important functional component of the portable life resuscitator for carrying out temperature regulation on blood. It can slowly warm blood according to the needs, lets the life body come back to life. The blood is nourished by an oxygenator, which exchanges oxygen and carbon dioxide with the blood. The blood cleaning filter cleans and filters blood.
The invention has the positive effects that:
the device for driving the blood of the rescue patient adopts a rotor pump structure, the rotating speed of a motor of the device is accurate through control, the fluid dynamics principle is fully utilized, the blood obtains power in a smooth environment, the influence on the blood caused by the rotation of a rotor is reduced as far as possible, the damage to the blood is reduced, and the possibility of thrombosis is reduced. The L-shaped design of the flow outlet of the rotor pump, the rotation-resisting structure, the hydraulic conversion and the layout of the rotor blades designed by fluid dynamics can reduce the disturbance of blood and prevent the formation of thrombus. The invention can slowly warm the blood of a patient who loses vital signs due to cold and properly oxygenate (the oxygenation function of a drowned person is reduced due to the fact that the lung is soaked in water), so that the patient can be slowly revived from 'hibernation', and the patient can be revived 'from death and survival'. The lives of the people who are misdiagnosed as dead because of cardiac arrest are saved.
Drawings
FIG. 1: the portable life recovery mechanism of the invention is in a block diagram;
FIG. 2: the portable life resuscitator is connected with a schematic diagram;
in the figure, A attracts the pump; b, a temperature-changing container; c oxygenator and blood cleaning filter; d, an oxygen-air mixing controller and an oxygen-air flow meter; e, a delivery pump; f, a power supply; g, a warmer; h control circuit system (CPU), display and operation keyboard.
FIG. 3: the invention relates to a rotor pump structure section diagram;
FIG. 4: the invention discloses a rotor pump in a three-dimensional schematic view;
in the figure, 1, a rotation blocking rib; 2. an outflow port; 3. a pump body; 4. a pump chamber; 5. an L-shaped speed reducing pipe; 6. a rotor shaft; 7. a blade; 8. an inflow port; 9. a bearing seat; 10. a motor and a control circuit;
FIG. 5: the invention relates to a motor control circuit block diagram of a rotor pump.
Detailed Description
The portable life resuscitator of the invention has been described above. The description is illustrative, and thus the scope of the invention should not be limited to the specific embodiments described above. It will be apparent to those skilled in the art that other variations and modifications of the above-described embodiments can be made without departing from the spirit or essential characteristics of the invention, which should also be regarded as the scope of the invention.
Example 1
As shown in fig. 1, the device mainly comprises a suction pump, an oxygenator, an oxygen and air mixing controller, a delivery pump, a blood cleaning filter, a temperature-changing container, a warmer, a control circuit system (central processing unit), a display, an operation keyboard, an oxygen air flow meter and a power supply device; the suction pump is sequentially connected with the temperature-changing container, the oxygenator, the blood cleaning filter and the delivery pump, leads the blood out of the venous blood vessel and leads the blood into the temperature-changing container; the temperature-changing container slowly heats the blood, and the blood is input into the oxygenator after being subjected to temperature regulation; the oxygenator is connected with the oxygen-air mixing controller, and exchanges oxygen and carbon dioxide for the blood conveyed by the temperature-changing container to realize the blood oxygenation; the blood cleaning filter cleans and filters the oxygenated blood; the delivery pump returns the oxygenated and cleaned blood to the artery; the control circuit system (central processing unit) is connected with the suction pump and the delivery pump, and stably operates at a proper rotating speed, so that blood flows out of the vein vessel and finally flows back to the artery.
Example 2
The connection relationship of the present invention is shown in fig. 2:
1. the suction pump A adopts a rotor pump structure: an inflow port of the suction pump A is connected to a vein through a blood vessel, and an outflow port of the suction pump A is connected to a blood input port of the temperature-variable container B through a blood vessel; the control circuit system (central processing unit) H is connected with the control circuit of the suction pump A; the rotating speed of the suction pump A is determined by the flow rate, the flow rate is 0-9.99 liters/minute, and a pump pipe with the diameter of 6-12 mm can be used.
2. The blood input port of the temperature-changing container B is connected with the outflow port of the suction pump A through a blood vessel, and the blood output port of the temperature-changing container B is connected with the blood input ports of the oxygenator and the blood cleaning filter C; the temperature-changing container B realizes heat exchange by water flowing in the isolation pipe, so that a temperature-changing water flow inlet of the temperature-changing container B is connected with a temperature-changing water delivery outlet of the warmer G, and a temperature-changing water flow outlet of the temperature-changing container B is connected with a temperature-changing water return port of the warmer G.
3. The blood input ports of the oxygenator and the blood cleaning filter C are connected with the blood output port of the temperature changing container B, and the blood output ports of the oxygenator and the blood cleaning filter C are connected with the inflow port of the delivery pump E through a blood vessel; the oxygen air input ports of the oxygenator and the blood cleaning filter C are connected with the oxygen air mixing controller and the oxygen air output port of the oxygen air flow meter D; the carbon dioxide output ports of the oxygenator and the blood cleaning filter C are opened and not connected to other components. In this example, a disposable bubbling oxygenator of the type Cijing-87, available from Dongguan Kewei medical instruments Co., Ltd, or a disposable KW-membrane oxygenator (which is provided with a temperature-changing container B) was used. The human lung can make 500ml of oxygen enter the blood at 250-. These oxygenators also have a blood cleaning function, and have defoaming and filtering functions. To eliminate air bubbles generated during oxygenation and to filter out various emboli and micro-emboli in the blood.
4. The oxygen air mixing controller and the oxygen input port of the oxygen air flow meter D are connected with an external oxygen tank through a conduit; the air input ports of the oxygen air mixing controller and the oxygen air flow meter D are in an open state and are not connected to other components. The oxygen air output ports of the oxygen air mixing controller and the oxygen air flow meter D are connected with the oxygen air input ports of the oxygenator and the blood cleaning filter C through conduits. This example uses a 3500CPG oxygen-air mixing controller manufactured by sichrist (Sechrist) whose mixing ratio is adjustable between 21-100% (error less than ± 3%), with an oxygen-air flow meter to display the flow rate.
5. The delivery pump E is a rotor pump structure, the inflow port of the delivery pump E is connected with the blood outlet of the oxygenator and the blood cleaning filter C through a blood vessel, and the outflow port of the delivery pump E is connected with the artery through the blood vessel; the control circuit system (central processing unit) H is connected with a motor control circuit of the delivery pump E; the rotating speed of the conveying pump E is determined by the flow rate, the flow rate is 0-9.99 liters/minute, and a pump pipe with the diameter of 6-12 mm can be used.
6. The power supply F is connected with the control circuit system (central processing unit) H and supplies power to the whole system.
7. The variable temperature water delivery outlet of the warmer G is connected with the variable temperature water flow inlet of the variable temperature container B, the variable temperature water reflux port of the warmer G is connected with the variable temperature water flow outlet of the variable temperature container B, and the control interface of the warmer G is connected with the control circuit system (central processing unit) H. The temperature difference between the water temperature and the blood temperature of the heater G is less than 10-15 ℃, and the absolute maximum water temperature is not more than 42 ℃.
8. The control circuit system (central processing unit) H is respectively connected with the control interface of the warmer G, the control interface of the power supply and power supply device F, the motor control circuit of the suction pump A and the motor control circuit of the delivery pump E.
Example 3
The suction pump A and the delivery pump E in the embodiment 1 and the embodiment 2 of the invention both adopt a rotor pump structure; referring to fig. 3 and 4, the upper and lower ends of the pump body 3 are provided with an outflow port 2 and an inflow port 8; the outflow port 2 is in a bell mouth shape, so that the hydraulic pressure in the rotor pump is reduced from large to small, the disturbance of blood is reduced, and the formation of thrombus is prevented; the inner wall of the outflow port 2 is provided with four arched rotation-resisting ribs 1 which are separated by 90 degrees, so that the rotation of blood flowing out of the rotor pump can be reduced; the outflow port 2 is communicated with the pump cavity 4 through an L-shaped deceleration pipe 5, thereby further reducing the disturbance of blood and preventing the formation of thrombus; rotor shaft 6 is connected with motor and control circuit 10 in pump chamber 4 through the bearing frame 9 device, and rotor shaft 6 is last to distribute has spiral rising's blade 7, and blade 7 area is along rotor shaft 6 by little grow gradually, and blade 7 upper and lower interval is also by little grow gradually, makes blood obtain accelerating gradually, has reduced the disturbance of blood in the pump equally, has prevented the formation of thrombus.
Example 4
A, a suction pump; b, a temperature-changing container; c oxygenator and blood cleaning filter; d, an oxygen-air mixing controller and an oxygen-air flow meter; e, a delivery pump; f, a power supply; g, a warmer; h control circuitry (central processing unit);
in order to simplify the whole structure of the portable life resuscitator, the temperature-changing container B, the oxygenator, the blood cleaning filter C, the oxygen-air mixing controller and the oxygen-air flow meter D are designed to be accessories outside the main machine, so that the main machine of the portable life resuscitator is simplified to be provided with the suction pump A, the delivery pump E, the heater G, the power supply F, a control circuit system (a central processing unit), a display and an operation keyboard (the portable life resuscitator in the figure 1 is a part which is included by a dotted line in a block diagram). The temperature-changing container B, the oxygenator, the blood cleaning filter C, the oxygen-air mixing controller and the oxygen-air flow meter D are hung by a built-in accessory hanging rod of the portable life resuscitator in actual use. In addition, in the use process of the whole portable life resuscitator, parts of the blood which are in direct contact with the portable life resuscitator are all made of disposable materials, so that the use and the maintenance are very convenient, and the infection probability is reduced.
Example 5
According to the invention, as shown in fig. 5, the motor servo circuit with double feedback of voltage and current is adopted, so that the rotating speed of the motor is stable and accurate. The motor servo circuit is composed of a voltage feedback amplifier VFA (OP177), a current feedback amplifier CFA (AD810) and a direct current/direct current converter DC/DC CONV (XL 4012). The control signals generate the control voltage and current required by the motor through these three main components.
The output terminal SW of the DC/DC converter DC/DC CONV (XL 4012) is connected to the negative input terminal IN-of the voltage feedback amplifier VFA (OP177) through a variable potentiometer W1, and the negative input terminal IN-of the voltage feedback amplifier VFA (OP177) is connected to the ground through a resistor R1. The ratio of the variable potentiometer W1 and the resistor R1 determines the strength of the voltage negative feedback. Therefore, the change of the control voltage of the rotor pump motor is negatively fed back to the negative input end IN-of the voltage feedback amplifier VFA (EL5105) to be restrained, and the negative feedback circuit has the function of stabilizing the output voltage of the DC/DC converter DC/DC CONV (XL 4012). The output OUT of the voltage feedback amplifier VFA (OP177) is connected to the positive input IN + of the current feedback amplifier CFA (AD 810).
The output end SW of the DC/DC converter DC/DC CONV (XL 4012) is connected with the negative input end IN-of the current feedback amplifier CFA (AD810) through a variable potentiometer W2, and the negative input end IN-of the current feedback amplifier CFA (AD810) is grounded through a resistor R2. Thus, the ratio of the variable potentiometer W2 to the resistor R2 determines the strength of the current negative feedback. The negative input terminal IN-of the current feedback amplifier CFA (AD810) has a very small input impedance, so that when there is any change IN the current flowing through W2, the change IN the current is converted into a voltage change to the output terminal OUT of the current feedback amplifier CFA (AD810), so that the fluctuation is suppressed. The function of the current negative feedback circuit is to convert the change of current into the change of voltage to stabilize the output current of the DC/DC converter DC/DC CONV (XL 4012). An output terminal OUT of the current feedback amplifier CFA (AD810) is connected to a feedback terminal FB of the DC/DC converter DC/DC CONV (XL 4012).
The power input end VIN of the DC/DC converter DC/DC CONV (XL 4012) is connected with a power supply + Vs, the voltage of the output end SW is determined by the voltage of the feedback end FB, and the motor passes stable working voltage and current under the regulation of the voltage feedback amplifier VFA (OP177) and the current feedback amplifier CFA (AD 810).
Claims (3)
1. A portable life resuscitator comprises a suction pump, a temperature-changing container, an oxygenator, a blood cleaning filter, an oxygen-air mixing controller, an oxygen-air flow meter, a delivery pump, a power supply, a warmer, a control circuit system (central processing unit), a display and an operation keyboard; wherein,
the suction pump is connected with the temperature-changing container, the oxygenator, the blood cleaning filter and the delivery pump in sequence, and the suction pump leads the blood out of the venous blood vessel and leads the blood into the temperature-changing container;
the temperature-changing container slowly heats the blood, and the blood is input into the oxygenator and the blood cleaning filter after being subjected to temperature regulation;
the oxygenator and the blood cleaning filter are connected with the oxygen-air mixing controller and the oxygen-air flow meter, and exchange of oxygen and carbon dioxide is performed on the blood conveyed from the temperature-variable container to realize the blood oxygenation;
-the blood cleaning filter cleans and filters the oxygenated blood;
-the oxygenated and cleaned blood is returned to the artery by the delivery pump;
the control circuit system (central processor) is connected to the suction pump and the delivery pump, and operates smoothly at a suitable speed to allow blood to flow out of the venous blood vessel and finally back to the artery.
2. A portable life resuscitator, characterized in that:
1) the suction pump adopts a rotor pump structure: the inflow port of the suction pump is connected to the vein through a blood vessel, and the outflow port of the suction pump is connected to the blood input port of the temperature-variable container through a blood vessel; the control circuit system (central processing unit) is connected with the control circuit of the suction pump; the rotating speed of the suction pump is determined by the flow rate, the flow rate is 0-9.99 liters/minute, and a pump pipe with the diameter of 6-12 mm can be used;
2) the blood input port of the temperature-changing container is connected with the outflow port of the suction pump through a blood vessel, and the blood output port of the temperature-changing container is connected with the blood input ports of the oxygenator and the blood cleaning filter; the temperature-changing container realizes heat exchange by water flowing in the isolation pipe, so that a temperature-changing water flow inlet of the temperature-changing container is connected with a temperature-changing water delivery outlet of the warmer, and a temperature-changing water flow outlet of the temperature-changing container is connected with a temperature-changing water return port of the warmer;
3) the blood input ports of the oxygenator and the blood cleaning filter are connected with the blood output port of the temperature-changing container, and the blood output ports of the oxygenator and the blood cleaning filter are connected with the inflow port of the delivery pump through a blood vessel; the oxygen air input ports of the oxygenator and the blood cleaning filter are connected with the oxygen air output ports of the oxygen air mixing controller and the oxygen air flow meter; the carbon dioxide output ports of the oxygenator and the blood cleaning filter are in an open state;
4) the oxygen air mixing controller and the oxygen inlet of the oxygen air flow meter are connected with an external oxygen tank through a conduit; the air input ports of the oxygen air mixing controller and the oxygen air flow meter are in an opening state; the oxygen and air mixing controller and the oxygen and air output port of the oxygen and air flow meter are connected with the oxygen and air input ports of the oxygenator and the blood cleaning filter through a conduit;
5) the delivery pump is a rotor pump structure, the inflow port of the delivery pump is connected with the blood output port of the oxygenator and the blood cleaning filter through a blood vessel, and the outflow port of the delivery pump is connected with the artery through the blood vessel; the control circuit system (central processing unit) is connected with a motor control circuit of the delivery pump;
6) the power supply F is connected with a control circuit system (central processing unit) H and supplies power to the whole system;
7) the temperature-changing water delivery outlet of the warmer is connected with the temperature-changing water flow inlet of the temperature-changing container, the temperature-changing water reflux port of the warmer is connected with the temperature-changing water flow outlet of the temperature-changing container, and the control interface of the warmer is connected with a control circuit system (central processing unit); the temperature difference between the water temperature and the blood temperature of the warmer is less than 10-15 ℃, and the absolute maximum water temperature is not more than 42 ℃;
8) the control circuit system (central processor) is respectively connected with the control interface of the warmer, the control interface of the power supply and power supply device, the motor control circuit of the suction pump and the motor control circuit of the delivery pump.
3. Portable life resuscitator according to claims 1 and 2, characterized in that:
the suction pump and the delivery pump both adopt rotor pump structures, and the upper end and the lower end of the pump body are provided with an outflow port and an inflow port; the outflow port is in a bell mouth shape, and the inner wall of the outflow port is provided with a rotation blocking rib; the outflow port is communicated with the pump cavity through an L-shaped pressure-resistant pipe; the rotor shaft is arranged in the pump cavity through a bearing seat and connected with the motor and the control circuit, and spiral blades are distributed on the rotor shaft.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108744099A (en) * | 2018-06-19 | 2018-11-06 | 广州军区广州总医院 | The control method that a kind of extracorporeal membrane oxygenation device and its control oxygenated blood supply |
| CN111228598A (en) * | 2020-03-16 | 2020-06-05 | 美茵（北京）医疗器械研发有限公司 | Extracorporeal life support blood circulation device and flow channel design method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5391142A (en) * | 1992-07-29 | 1995-02-21 | Organetics, Ltd. | Apparatus and method for the extracorporeal treatment of the blood of a patient having a medical condition |
| US5957880A (en) * | 1996-03-04 | 1999-09-28 | Cormedics Corp. | Extracorporeal circulation apparatus and method |
| CN1339975A (en) * | 1999-02-12 | 2002-03-13 | 利弗布里奇医药技术有限公司 | Mobile hart-lung machine |
| CN2936268Y (en) * | 2006-08-01 | 2007-08-22 | 云琛 | Blood-oxygen mixing device |
| CN102886082A (en) * | 2012-09-20 | 2013-01-23 | 上海市杨浦区市东医院 | Active in-vitro lung auxiliary system |
-
2013
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5391142A (en) * | 1992-07-29 | 1995-02-21 | Organetics, Ltd. | Apparatus and method for the extracorporeal treatment of the blood of a patient having a medical condition |
| US5957880A (en) * | 1996-03-04 | 1999-09-28 | Cormedics Corp. | Extracorporeal circulation apparatus and method |
| CN1339975A (en) * | 1999-02-12 | 2002-03-13 | 利弗布里奇医药技术有限公司 | Mobile hart-lung machine |
| CN2936268Y (en) * | 2006-08-01 | 2007-08-22 | 云琛 | Blood-oxygen mixing device |
| CN102886082A (en) * | 2012-09-20 | 2013-01-23 | 上海市杨浦区市东医院 | Active in-vitro lung auxiliary system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108744099A (en) * | 2018-06-19 | 2018-11-06 | 广州军区广州总医院 | The control method that a kind of extracorporeal membrane oxygenation device and its control oxygenated blood supply |
| CN111228598A (en) * | 2020-03-16 | 2020-06-05 | 美茵（北京）医疗器械研发有限公司 | Extracorporeal life support blood circulation device and flow channel design method thereof |
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| Publication number | Publication date |
|---|---|
| CN103272293B (en) | 2015-07-15 |
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