阅读说明：本技术 Ecmo血液加温装置 (ECMO blood heating device ) 是由 赖亚明 黄健兵 刘新 黄洪辉 黄裕凯 于 2021-01-20 设计创作，主要内容包括：ECMO血液加温装置。本申请提出一种热交换器,所述ECMO中设置有血泵电机和肺膜,所述装置包括：设置于所述血泵电机外部的水冷套；设置于所述肺膜外部的加热水套；其中,所述水冷套的出水口与所述加热水套的进水口相连,所述水冷套的进水口与所述加热水套的出水口相连,以将所述水冷套中的热水置换至所述加热水套中,对所述肺膜进行加热,有效节约能源。(ECMO blood heating device. The application provides a heat exchanger, be provided with blood pump motor and lung membrane in the ECMO, the device includes: the water cooling sleeve is arranged outside the blood pump motor; the heating water jacket is arranged outside the lung membrane; the water outlet of the water cooling jacket is connected with the water inlet of the heating water jacket, and the water inlet of the water cooling jacket is connected with the water outlet of the heating water jacket so as to replace hot water in the water cooling jacket into the heating water jacket to heat the lung membrane, thereby effectively saving energy.)

1. The ECMO blood heating device is characterized in that a blood pump motor and a lung membrane are arranged in the ECMO, and the device comprises:

the water cooling sleeve is arranged outside the blood pump motor;

the heating water jacket is arranged outside the lung membrane;

the water outlet of the water cooling jacket is connected with the water inlet of the heating water jacket, and the water inlet of the water cooling jacket is connected with the water outlet of the heating water jacket so as to replace hot water in the water cooling jacket into the heating water jacket to heat the lung membrane.

2. The apparatus of claim 1, further comprising: a constant-temperature water mixing valve is arranged on the water tank,

the constant-temperature water mixing valve comprises a hot water inlet and a water outlet, the hot water inlet is connected with the water outlet of the water cooling jacket, the water outlet of the constant-temperature water mixing valve is connected with the water inlet of the heating water jacket, and the constant-temperature water mixing valve is used for controlling the temperature of water entering the heating water jacket.

3. The apparatus of claim 2, further comprising: the control unit is used for controlling the operation of the electronic device,

the control unit is used for controlling a hot water inlet of the constant-temperature water mixing valve to be opened when the detected temperature of the blood pump motor is greater than or equal to the first preset temperature.

4. The apparatus of claim 1, further comprising: a water storage device,

the water inlet of the water storage device is connected with the water outlet of the heating water jacket, and the water outlet of the water storage device is connected with the water inlet of the water cooling jacket.

5. The device of claim 4, wherein the thermostatic mixing valve further comprises a cold water inlet,

the water outlet of the water storage device is also connected with the cold water inlet of the constant-temperature water mixing valve.

6. The device as claimed in claim 4, wherein a water pump is arranged in the water storage device, so that water in the water storage device is supplied to the water inlet of the water cooling jacket and/or the cold water inlet of the thermostatic water mixing valve through the water pump.

7. The device of claim 1, wherein a thermally conductive silicone grease is applied between the blood pump motor and the water cooling jacket.

8. The apparatus of claim 7, wherein the water jacket is a good conductor that is not susceptible to corrosion.

9. The apparatus of claim 8, wherein the water jacket is copper.

10. The device of claim 1, wherein the water cooling jacket is helically wound outside the blood pump motor.

Technical Field

The invention relates to the technical field of medical instruments, in particular to an ECMO blood heating device.

Background

In an ECMO (Extracorporeal membrane oxygenation) device, a blood pump motor generates a large amount of heat energy during operation and needs to dissipate heat, and blood in a low-temperature state easily coagulates blood and needs to be heated. In the related art, an independent heat dissipation device is usually adopted to dissipate heat of a blood pump motor, an independent heating device is adopted to heat blood, heat energy is seriously wasted, and meanwhile, the electric quantity of ECMO is greatly consumed and needs to be improved.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.

Therefore, the first purpose of the present invention is to provide an ECMO blood warming device, which can heat the lung membrane by using the heat of the blood pump motor, thereby effectively saving energy.

In order to achieve the above object, a first aspect of the present invention provides an ECMO blood warming device, in which a blood pump motor and a lung membrane are disposed, the device comprising: the water cooling sleeve is arranged outside the blood pump motor; the heating water jacket is arranged outside the lung membrane; the water outlet of the water cooling jacket is connected with the water inlet of the heating water jacket, and the water inlet of the water cooling jacket is connected with the water outlet of the heating water jacket so as to replace hot water in the water cooling jacket into the heating water jacket to heat the lung membrane.

In some embodiments, the apparatus further comprises: the constant-temperature water mixing valve comprises a hot water inlet and a water outlet, the hot water inlet is connected with the water outlet of the water cooling jacket, the water outlet of the constant-temperature water mixing valve is connected with the water inlet of the heating water jacket, and the constant-temperature water mixing valve is used for controlling the temperature of water entering the heating water jacket.

In some embodiments, the apparatus further comprises: and the control unit is used for controlling a hot water inlet of the constant-temperature water mixing valve to be opened when the detection temperature of the blood pump motor is greater than or equal to the first preset temperature.

In some embodiments, the apparatus further comprises: and the water inlet of the water storage device is connected with the water outlet of the heating water jacket, and the water outlet of the water storage device is connected with the water inlet of the water cooling jacket.

In some embodiments, the thermostatic mixing valve further comprises a cold water inlet, and the water outlet of the water storage device is further connected with the cold water inlet of the thermostatic mixing valve.

In some embodiments, a water pump is arranged in the water storage device, so that water in the water storage device is provided to the water inlet of the water cooling jacket and/or the cold water inlet of the thermostatic water mixing valve through the water pump.

In some embodiments, thermally conductive silicone grease is coated between the blood pump motor and the water cooling jacket.

In some embodiments, thermally conductive silicone grease is coated between the blood pump motor and the water cooling jacket.

In some embodiments, the water jacket is copper.

In some embodiments, the water jacket is helically wound outside the blood pump motor.

This application establishes water circulating system, through the hydrologic cycle heating device who establishes the UNICOM outside blood pump motor and pulmonary membrane, can effectively utilize the heat that blood pump motor produced to heat the pulmonary membrane, effectively ensures ECMO's job stabilization nature and security, need not to set up the heating device to the pulmonary membrane in addition simultaneously, effectively reduces ECMO's use cost.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic diagram of a heat exchanger according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a heat exchanger according to another embodiment of the present application;

FIG. 3 is a schematic structural diagram of a water jacket according to an embodiment of the present application.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

A heat exchanger according to an embodiment of the present invention will be described with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of a heat exchanger according to an embodiment of the present application. As shown in fig. 1, the ECMO blood warming apparatus 1 includes: a water cooling jacket 10 and a heating water jacket 20.

Wherein, the water cooling jacket 10 is arranged outside the blood pump motor, and the heating water jacket 20 is arranged outside the pulmonary membrane.

Wherein, the water outlet 12 of the water cooling jacket 10 is connected with the water inlet 11 of the heating water jacket 20, the water inlet 11 of the water cooling jacket 10 is connected with the water outlet 22 of the heating water jacket 20, the hot water in the water cooling jacket 10 is replaced in the heating water jacket 20, and the lung membrane is heated.

It should be noted that, in the ECMO, in order to promote the flow of blood, a blood pump motor needs to be provided, the blood pump motor generates heat during operation, in order to ensure the stability of the continuous operation of the blood pump motor, the blood pump motor needs to be cooled, and in order to ensure that the temperature of blood in the lung membrane meets the temperature requirement of a human body, the lung membrane also needs to be heated,

consequently, this application establishes water circulating system, through the water circulation heating device who establishes the UNICOM outside blood pump motor and pulmonary membrane, can effectively utilize the heat that blood pump motor produced to heat the pulmonary membrane, effectively ensures ECMO's job stabilization nature and security, need not to set up the heating device to the pulmonary membrane in addition simultaneously, effectively reduces ECMO's use cost.

Wherein, heat conduction silicone grease is coated between the blood pump motor and the water cooling jacket 10.

Wherein, the water cooling jacket 10 adopts a good conductor which is not easy to corrode, and preferably, the water cooling jacket 10 can be made of copper.

As shown in fig. 3, the water cooling jacket 10 is spirally wound outside the blood pump motor to increase the contact area between the water cooling jacket 10 and the blood pump motor, wherein (a), (b), (c) in fig. 3 show the observation effect of the water cooling jacket from different viewing angles, respectively.

Further, as shown in fig. 2, the ECMO blood warming device 1 further comprises a thermostatic mixing valve 30.

The constant-temperature water mixing valve 30 comprises a hot water inlet 311 and a water outlet 32, the hot water inlet 311 is connected with the water outlet 12 of the water cooling jacket 10, the water outlet 32 of the constant-temperature water mixing valve 30 is connected with the water inlet 21 of the heating water jacket 20, and the constant-temperature water mixing valve 30 is used for controlling the temperature of water entering the heating water jacket.

It should be noted that a temperature control unit 33 may be disposed in the thermostatic mixing valve 30, and the temperature control unit 33 heats the water in the thermostatic mixing valve 30 when the temperature of the water in the thermostatic mixing valve 30 is not enough to heat the lung membrane, so as to meet the heating requirement of the heating water jacket 20.

Further, the ECMO blood warming device 1 further comprises a control unit 40.

And the control unit 40 is used for controlling the opening of the hot water inlet 311 of the thermostatic water mixing valve 30 when the detected temperature of the blood pump motor is greater than or equal to a first preset temperature.

It should be understood that, in the initial stage of operation of the blood pump motor, the temperature of the blood pump motor is still low and is not enough for heating the lung membrane, therefore, a temperature acquisition unit may be disposed on the water cooling jacket 10, and the temperature acquisition unit is connected to the control unit 40, and the control unit 40 determines whether the hot water inlet 311 of the thermostatic water mixing valve 30 needs to be opened according to the temperature acquired by the temperature acquisition unit, that is, if the temperature detected by the temperature detection unit is greater than or equal to the first preset temperature, the hot water inlet 311 of the thermostatic water mixing valve 30 is controlled to be opened to replace the hot water in the water cooling jacket 10 into the heating water jacket 20 for heating the lung membrane, and if the temperature detected by the temperature detection unit is less than the first preset temperature, the hot water inlet 311 of the thermostatic water mixing valve 30 is controlled to be continuously closed.

Therefore, the water which is not heated to the temperature and can heat the lung membrane is effectively prevented from being replaced into the heating water jacket 20, and the lung membrane temperature is further prevented from being influenced.

Optionally, the ECMO blood warming device 1 further comprises a water storage device 50.

Wherein, the water inlet 51 of the water storage device 50 is connected with the water outlet 22 of the heating water jacket 20, and the water outlet 52 of the water storage device 50 is connected with the water inlet 11 of the water cooling jacket 10.

Further, the thermostatic mixing valve 30 further comprises a cold water inlet 312, and the water outlet 52 of the water storage device 50 is further connected with the cold water inlet 312 of the thermostatic mixing valve 30.

That is, the thermostatic mixing valve 30 mixes the cold water in the water storage device 50 with the hot water in the water jacket 10 to obtain the thermostatic water that can be supplied to the heating water jacket 20. When the temperature of water in the water cooling jacket 10 is insufficient, the thermostatic water mixing valve 30, the heating water jacket 20 and the water storage device 50 form water circulation, stable thermostatic water is provided for the heating water jacket 20 by using the temperature control unit in the thermostatic water mixing valve 30, and when the temperature of water in the water cooling jacket 10 is sufficient, the thermostatic water mixing valve 30 provides stable thermostatic water for the heating water jacket 20 by controlling the water inlet proportion of the hot water inlet 311 and the cold water inlet 312.

Optionally, in order to ensure effective flow of water in the water circulation system, a water pump 53 may be further disposed in the water storage device 50, so that water in the water storage device 50 is supplied to the water inlet 11 of the water cooling jacket 10 and/or the cold water inlet 312 of the thermostatic water mixing valve 30 through the water pump 50.

It should be understood that, still be provided with the motor controller that is used for controlling blood pump motor to carry out work on the blood pump motor, motor controller is electrical element, overheated easy influence life damage even, however, electrical element uses for a long time can produce heat, and motor controller sets up on blood pump motor, absorb the heat of blood pump motor during operation easily, therefore, still need cool down motor controller, this application is provided with the water-cooling piece of establishing ties between the water inlet 11 of water-cooling jacket 10 and the delivery port 52 of water storage device 50 outside motor controller, the water inlet of water-cooling piece links to each other with the delivery port 52 of water storage device 50, the delivery port of water-cooling piece links to each other with the water inlet 11 of water-cooling jacket 10, utilize the cold water that water storage device 50 sent to water-cooling jacket 10 to cool down motor controller.

To sum up, this application establishes water circulating system, through the hydrologic cycle heating device who establishes the UNICOM outside blood pump motor and pulmonary membrane, can effectively utilize the heat that blood pump motor produced to heat the pulmonary membrane, effectively ensures ECMO's job stabilization nature and security, need not to set up the heating device to the pulmonary membrane in addition simultaneously, effectively reduces ECMO's use cost.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.