CN212817420U - ECMO & CRRT pressure balancing appearance - Google Patents
ECMO & CRRT pressure balancing appearance Download PDFInfo
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- CN212817420U CN212817420U CN202021955439.7U CN202021955439U CN212817420U CN 212817420 U CN212817420 U CN 212817420U CN 202021955439 U CN202021955439 U CN 202021955439U CN 212817420 U CN212817420 U CN 212817420U
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Abstract
The utility model relates to a medical auxiliary assembly technical field discloses an ECMO & CRRT pressure balance appearance, include: the transmission pipeline is used for transmitting blood from the ECMO machine to the CRRT machine, and an input interface and an output interface are correspondingly arranged at two ends of the transmission pipeline; the brake is arranged on the transmission pipeline and used for controlling the flow of the blood transmitted from the ECMO machine to the CRRT machine according to the signal of the central control machine; a first pressure transmitter for detecting the pressure of blood input from the ECMO machine; a second pressure transmitter for detecting the blood pressure output to the CRRT machine; the opening and closing degree of the brake is controlled by the central control machine according to the blood pressure detected by the first pressure transmitter and the second pressure transmitter, the ECMO machine and the CRRT machine are combined by the pressure balancing instrument, the human body only needs one blood leading end and one blood returning end, the treatment effect is not influenced, the human body pressure is reduced, and the treatment is more convenient and safer.
Description
Technical Field
The utility model relates to a medical auxiliary equipment technical field, in particular to ECMO & CRRT pressure balance appearance.
Background
ECMO machine is called totally: an ExtraCorporeal Membrane pulmonary oxygenator (ExtraCorporeal Membrane oxygen) mainly has the function of replacing the cardiopulmonary function completely/partially so as to strive for the time for curing cardiopulmonary diseases and recovering the function. ECMO introduces blood from the body to the outside of the body through a pump (the function of which is similar to that of an artificial heart), and then the blood is infused back into the human body after gas exchange is carried out through a membrane oxygenator (the function of which is similar to that of an artificial lung, namely a membrane lung for short), so that the functions of the heart and/or the lung are completely or partially replaced, and the heart and the lung are fully rested.
CRRT machine: continuous Renal Replacement Therapy (CRRT). The treatment process is simple in that the blood of a patient is led out through a pipeline, purified through a special filter and then returned into the body of the patient through the pipeline.
At present, if the heart, lung and kidney functions of a patient are not very healthy, two machines are required to act simultaneously, but because of different pressures, the two machines can only work respectively, a human body has two blood leading ends and two blood returning ends, so that the large pressure of the human body is caused, extra burden is brought to the heart of the patient, and complications are particularly easy to cause.
At present, no good solution to the problem exists in ICU wards at home and abroad, when ECMO combined CRRT treatment is carried out, due to the ECMO pump head, the blood flow speed is high, the ECMO pump head can reach 3000-. The CRRT machine also generates power through a pump head, and a rolling mechanical pump is applied, so that when the CRRT machine normally passes through the blood-drawing treatment of a human body, the blood-drawing end is basically negative pressure, and can also be positive pressure (about-20 to +50 mmHg) with smaller pressure. The blood return end is positive pressure (about 100 mmHg). Too high a pressure may affect the therapeutic effect and may also cause damage to the machine.
The current solution is as follows: one is to reduce the ECMO rotation rate to reduce the pressure, but this can affect the therapeutic effect. Secondly, puncture a passageway for the patient in addition, increased the wound operation, the patient is painful, has also increased the risk such as infection, hemorrhage, and two ECMO pipelines (the blood guide end and the blood return end of ECMO) have been punctured, and the blood vessel of puncturing a pipeline again selects limitedly.
SUMMERY OF THE UTILITY MODEL
The utility model provides a ECMO & CRRT pressure balance appearance can unite two machines of ECMO machine and CRRT machine, and the human body only needs one to draw the blood end, and blood end is returned to one, does not influence treatment, has alleviateed human pressure moreover for the treatment is more convenient safety.
The utility model provides a ECMO & CRRT pressure balance appearance, include: the transmission pipeline is used for transmitting blood from the ECMO machine to the CRRT machine, an input interface and an output interface are correspondingly arranged at two ends of the transmission pipeline, the input interface is connected with the ECMO machine, and the output interface is connected with the CRRT machine;
the brake is arranged on the transmission pipeline and used for controlling the flow of the blood transmitted from the ECMO machine to the CRRT machine according to the signal of the central control machine;
a first pressure transmitter for detecting the pressure of blood input from the ECMO machine;
the second pressure transmitter is used for detecting the blood pressure input to the CRRT machine;
the central control machine is used for receiving the blood pressure detected by the first pressure transmitter and the second pressure transmitter and controlling the opening and closing degree of the brake according to the blood pressure detected by the first pressure transmitter and the second pressure transmitter;
and the power supply is used for supplying power to the first pressure transmitter, the second pressure transmitter, the brake and the central control machine.
The third pressure transmitter is used for detecting the blood pressure output by the CRRT machine; and the third pressure transmitter is connected with a power supply, and the third pressure transmitter is in signal connection with the central control machine.
The central control machine controls the opening and closing degree of the brake by outputting an analog quantity signal of 4-20mA to achieve pressure balance.
The power supply is 24V direct current.
The input and output blood pressure of the CRRT machine is 50mmHg, and the input blood pressure of the ECMO machine is 500 mmHg.
The pipe diameter of the pipeline of the transmission pipeline is 6 mm.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model discloses a pressure balancing appearance main role of ECMO machine and CRRT machine is the pressure between balanced ECMO machine and the CRRT machine, and it unites two machines, has overcome the blood conflux pipeline between two machine connections because the different thrombus that forms of pressure influence treatment's problem, and the human body only needs one to draw the blood end, and blood return end does not influence treatment, has alleviateed human pressure simultaneously for the treatment is more convenient safety.
Drawings
Fig. 1 is the utility model provides a connection structure sketch map of ECMO & CRRT pressure balance appearance.
Fig. 2 is a schematic block diagram of the ECMO & CRRT pressure balancer provided by the present invention.
Fig. 3 is a schematic circuit diagram of the ECMO & CRRT pressure balancer provided by the present invention.
Fig. 4 is a circuit diagram of the pressure transmitter provided by the present invention.
Description of reference numerals:
1-a first pressure transmitter, 2-a second pressure transmitter, 3-a central control machine, 4-a brake, 5-a third pressure transmitter, 6-an ECMO host, 7-a transmission pipeline and 8-a CRRT machine.
Detailed Description
An embodiment of the present invention will be described in detail with reference to fig. 1-4, but it should be understood that the scope of the present invention is not limited by the embodiment.
As shown in fig. 1, an embodiment of the present invention provides an ECMO & CRRT pressure balancer, including: the transmission pipeline 7 is used for transmitting blood from the ECMO machine 6 to the CRRT machine 8, an input interface and an output interface are correspondingly arranged at two ends of the transmission pipeline, the input interface is connected with the ECMO machine 6, and the output interface is connected with the CRRT machine 8;
the brake 4 is arranged on the transmission pipeline 7 and is used for controlling the flow of the blood transmitted from the ECMO machine 6 to the CRRT machine 8 according to the signal of the central control machine 3;
a first pressure transmitter 1 for detecting the pressure of blood inputted from the ECMO machine 6;
a second pressure transmitter 2 for detecting the pressure of the blood input to the CRRT machine 8;
the central control machine 3 is used for receiving the blood pressure detected by the first pressure transmitter 1 and the second pressure transmitter 2 and controlling the opening degree of the brake 4 according to the blood pressure detected by the first pressure transmitter 1 and the second pressure transmitter 2;
and the power supply is used for supplying power to the first pressure transmitter 1, the second pressure transmitter 2, the brake 4 and the central control machine 3.
The device also comprises a third pressure transmitter 5 which is used for detecting the blood pressure output by the CRRT machine 8; and the third pressure transmitter 5 is connected with a power supply, and the third pressure transmitter 5 is in signal connection with the central control machine 3.
The central control machine 3 controls the opening and closing degree of the brake 4 by outputting an analog quantity signal of 4-20mA to achieve pressure balance.
The power supply is 24V direct current.
The input and output blood pressure of the CRRT machine 8 is 50mmHg, and the input blood pressure of the ECMO machine 6 is 500 mmHg.
The pipe diameter of the transmission pipeline 7 is 6 mm.
The ECMO & CRRT pressure balancing instrument combines two machines, and overcomes the problem that the blood between the two machines flows into a pipeline to form thrombus due to different pressures, so that the treatment effect is influenced.
If two machines of the ECMO machine and the CRRT machine are required to work simultaneously, only one blood leading end and one blood returning end are required to achieve the treatment effect, and the pressure of a human body is reduced.
The two pressure transmitters of the first pressure transmitter 1 and the second pressure transmitter 2 transmit pressure signals to the touch screen of the central control machine 3 for display, the central control machine 3 outputs analog quantity signals of 4-20mA through differential pressure calculation, and the closing degree of a valve of the brake 4 is controlled, so that the purpose of pressure balance is achieved.
The utility model discloses the material that transmission pipeline 7 was used accords with human safe standard of using, because will direct contact blood, what transmission pipeline 7 adopted can not produce destructive action and pipeline wall to the tangible composition of blood and do not have adhesive action and to blood system's activating action, has reduced the influence of these effects to human blood system.
The input interface and the output interface of the transmission pipeline 7 both adopt standard interfaces consistent with the interfaces of the CRRT pipeline and the ECMO pipeline.
The transmission pipeline 7 in the ECMO & CRRT pressure balancing instrument has short pipeline and few bent channels, reduces turbulence and reduces the risk of thrombus.
The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the embodiments, and any changes that can be considered by those skilled in the art shall fall within the protection scope of the present invention.
Claims (6)
1. An ECMO & CRRT pressure balancer, comprising:
the transmission pipeline (7) is used for transmitting blood from the ECMO machine (6) to the CRRT machine (8), an input interface and an output interface are correspondingly arranged at two ends of the transmission pipeline, the input interface is connected with the ECMO machine (6), and the output interface is connected with the CRRT machine (8);
the brake (4) is arranged on the transmission pipeline (7) and is used for controlling the flow of the blood transmitted from the ECMO machine (6) to the CRRT machine (8) according to the signal of the central control machine (3);
a first pressure transmitter (1) for detecting the pressure of the blood input from the ECMO machine (6);
a second pressure transmitter (2) for detecting the pressure of the blood input to the CRRT machine (8);
the central control machine (3) is used for receiving the blood pressure detected by the first pressure transmitter (1) and the second pressure transmitter (2) and controlling the opening and closing degree of the brake (4) according to the blood pressure detected by the first pressure transmitter (1) and the second pressure transmitter (2);
and the power supply is used for supplying power to the first pressure transmitter (1), the second pressure transmitter (2), the brake (4) and the central control machine (3).
2. The ECMO & CRRT pressure equaliser of claim 1 further comprising a third pressure transducer (5) for sensing the blood pressure output by the CRRT machine (8); the third pressure transmitter (5) is connected with a power supply, and the third pressure transmitter (5) is in signal connection with the central control machine (3).
3. The ECMO & CRRT pressure balancer according to claim 1, wherein the central control unit (3) controls the opening and closing degree of the brake (4) by outputting an analog signal of 4-20mA to achieve pressure balance.
4. The ECMO & CRRT pressure equaliser of claim 1 wherein said power supply is a direct current 24V.
5. The ECMO & CRRT pressure equaliser of claim 2 wherein the blood pressure input and output by the CRRT machine (8) is 50mmHg and the blood pressure input by the ECMO machine (6) is 500 mmHg.
6. The ECMO & CRRT pressure equaliser of claim 1 wherein the transfer conduit (7) has a conduit diameter of 6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021955439.7U CN212817420U (en) | 2020-09-08 | 2020-09-08 | ECMO & CRRT pressure balancing appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021955439.7U CN212817420U (en) | 2020-09-08 | 2020-09-08 | ECMO & CRRT pressure balancing appearance |
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| Publication Number | Publication Date |
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| CN212817420U true CN212817420U (en) | 2021-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021955439.7U Active CN212817420U (en) | 2020-09-08 | 2020-09-08 | ECMO & CRRT pressure balancing appearance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113230531A (en) * | 2021-04-27 | 2021-08-10 | 江苏省人民医院（南京医科大学第一附属医院） | System and method for connecting additional pressure adjusting device in ECMO and CRRT pipelines |
| EP4353275A1 (en) | 2022-10-13 | 2024-04-17 | Gambro Lundia AB | Apparatus for extracorporeal blood treatment |
-
2020
- 2020-09-08 CN CN202021955439.7U patent/CN212817420U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113230531A (en) * | 2021-04-27 | 2021-08-10 | 江苏省人民医院（南京医科大学第一附属医院） | System and method for connecting additional pressure adjusting device in ECMO and CRRT pipelines |
| EP4353275A1 (en) | 2022-10-13 | 2024-04-17 | Gambro Lundia AB | Apparatus for extracorporeal blood treatment |
| WO2024079060A1 (en) | 2022-10-13 | 2024-04-18 | Gambro Lundia Ab | Apparatus for extracorporeal blood treatment |
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