CN112870545B - ECMO blood heating device - Google Patents
ECMO blood heating device Download PDFInfo
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- CN112870545B CN112870545B CN202110075052.5A CN202110075052A CN112870545B CN 112870545 B CN112870545 B CN 112870545B CN 202110075052 A CN202110075052 A CN 202110075052A CN 112870545 B CN112870545 B CN 112870545B
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- water
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- mixing valve
- heating
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1621—Constructional aspects thereof
- A61M1/1629—Constructional aspects thereof with integral heat exchanger
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1698—Blood oxygenators with or without heat-exchangers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
- A61M1/369—Temperature treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3368—Temperature
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/36—General characteristics of the apparatus related to heating or cooling
- A61M2205/3606—General characteristics of the apparatus related to heating or cooling cooled
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/36—General characteristics of the apparatus related to heating or cooling
- A61M2205/366—General characteristics of the apparatus related to heating or cooling by liquid heat exchangers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/36—General characteristics of the apparatus related to heating or cooling
- A61M2205/3666—General characteristics of the apparatus related to heating or cooling using heat loss of a motor
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Urology & Nephrology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Emergency Medicine (AREA)
- Cardiology (AREA)
- External Artificial Organs (AREA)
Abstract
ECMO blood warming device. The application proposes 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; a heating water jacket disposed outside the lung membrane; the water outlet of the water cooling jacket is connected with the water inlet of the heating water jacket, the water inlet of the water cooling jacket is connected with the water outlet of the heating water jacket, so that hot water in the water cooling jacket is replaced into the heating water jacket, the lung membrane is heated, and energy sources are effectively saved.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to an ECMO blood heating device.
Background
On ECMO (Extracorporeal membrane oxygenation ) devices, the blood pump motor generates a large amount of heat energy during operation, requiring heat dissipation, while blood in a low temperature state is susceptible to clotting and requires heating. In the related art, an independent heat dissipation device is generally adopted to dissipate heat of the blood pump motor, and an independent heating device is adopted to heat blood, so that heat energy is seriously wasted, and meanwhile, the electric quantity consumption of ECMO is large and needs to be improved.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent.
Therefore, a first object of the present invention is to provide an ECMO blood heating apparatus, which can heat the lung membrane by using the heat of the blood pump motor, and effectively save energy.
To achieve the above object, an embodiment of a first aspect of the present invention provides an ECMO blood warming apparatus, in which a blood pump motor and a lung membrane are disposed, the apparatus comprising: the water cooling sleeve is arranged outside the blood pump motor; a heating water jacket disposed 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 and 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 sleeve, the water outlet of the constant-temperature water mixing valve is connected with the water inlet of the heating water sleeve, and the constant-temperature water mixing valve is used for controlling the water temperature entering the heating water sleeve.
In some embodiments, the apparatus further comprises: and the control unit is used for controlling the 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.
In some embodiments, the apparatus further comprises: 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 provided in the water storage device to provide water in the water storage device to the water inlet of the water jacket and/or the cold water inlet of the thermostatic mixing valve through the water pump.
In some embodiments, a thermally conductive silicone grease is coated between the blood pump motor and the water-cooled jacket.
In some embodiments, a thermally conductive silicone grease is coated between the blood pump motor and the water-cooled jacket.
In some embodiments, the water jacket is copper.
In some embodiments, the water-cooled jacket is helically wound outside the blood pump motor.
This application establishes water circulation 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 pulmonary membrane, effectively ensures ECMO's job stabilization nature and security, need not to set up in addition the heating device to pulmonary membrane 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 invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic view of a heat exchanger according to one embodiment of the present application;
FIG. 2 is a schematic view of a heat exchanger according to another embodiment of the present application;
FIG. 3 is a schematic view of a water jacket in one embodiment of the present application.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
A heat exchanger according to an embodiment of the present invention is described below 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 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 lung 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, and the lung membrane is heated in the heating water jacket 20 which replaces the hot water in the water-cooling jacket 10.
In the ECMO, in order to promote the flow of blood, a blood pump motor is required to generate heat during operation, heat dissipation is required to be performed to the blood pump motor in order to ensure the stability of continuous operation of the blood pump motor, and in order to ensure that the temperature of blood in the lung membrane meets the temperature requirement of a human body, therefore, the lung membrane is also required to be heated,
therefore, the application establishes a water circulation system, and through the water circulation heating device which establishes communication outside the blood pump motor and the lung membrane, the lung membrane can be heated by effectively utilizing the heat generated by the blood pump motor, so that the working stability and the safety of ECMO are effectively ensured, and meanwhile, the heating device for the lung membrane is not required to be additionally arranged, and the use cost of the ECMO is effectively reduced.
Wherein heat conduction silicone grease is coated between the blood pump motor and the water cooling jacket 10.
Wherein the water jacket 10 is made of a good conductor which is not easy to corrode, preferably, the water jacket 10 can be made of copper.
As shown in fig. 3, the water jacket 10 is spirally wound outside the blood pump motor to increase the contact area of the water jacket 10 with the blood pump motor, wherein (a), (b), and (c) in fig. 3 show the observation effect of the water jacket from different viewing angles, respectively.
Further, as shown in fig. 2, the ECMO blood warming apparatus 1 further includes 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 water temperature entering the heating water jacket.
It should be noted that, the constant temperature water mixing valve 30 may be provided with a temperature control unit 33, where the temperature control unit 33 heats the water in the constant temperature water mixing valve 30 when the water temperature in the constant temperature water mixing valve 30 is insufficient to heat the lung membrane, so as to meet the heating requirement of the heating water jacket 20.
Still further, the ECMO blood warming apparatus 1 further comprises a control unit 40.
And a control unit 40 for controlling the hot water inlet 311 of the thermostatic water mixing valve 30 to be opened when the detected temperature of the blood pump motor is greater than or equal to a first preset temperature.
It should be understood that, at the initial stage of operation of the blood pump motor, the temperature of the blood pump motor is still low enough to heat the lung membrane, and therefore, a temperature acquisition unit may be provided on the water 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, i.e., if the temperature detected by the temperature detection unit is greater than or equal to the first preset temperature, controls the hot water inlet 311 of the thermostatic water mixing valve 30 to be opened so as to replace the hot water in the water 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, controls the hot water inlet 311 of the thermostatic water mixing valve 30 to be continuously closed.
Thereby, the water which is not heated up to the lung membrane is effectively prevented from being replaced into the heating water jacket 20, and the lung membrane temperature is prevented from being influenced.
Optionally, the ECMO blood warming apparatus 1 further comprises a water storage means 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 constant temperature water 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 constant temperature water mixing valve 30.
That is, the thermostatic water mixing valve 30 mixes cold water in the water storage device 50 with hot water in the water jacket 10 to obtain thermostatic water that can be supplied to the heating jacket 20. When the water temperature in the water jacket 10 is insufficient, the constant temperature water mixing valve 30, the heating water jacket 20 and the water storage device 50 form water circulation, the temperature control unit in the constant temperature water mixing valve 30 is utilized to provide stable constant temperature water for the heating water jacket 20, and when the water temperature in the water jacket 10 is sufficient, the constant temperature water mixing valve 30 provides stable constant temperature water for the heating water jacket 20 by controlling the water inlet ratio of the hot water inlet 311 and the cold water inlet 312.
Optionally, in order to ensure an efficient flow of water in the water circulation system, a water pump 53 may be further provided in the water storage device 50 to supply water in the water storage device 50 to the water inlet 11 of the water jacket 10 and/or the cold water inlet 312 of the thermostatic 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 the blood pump motor and carries out work on the blood pump motor, motor controller is the electrical component, overheated easy influence life and damage even, but, electrical component long-term use can produce heat, and motor controller sets up on the blood pump motor, the heat of blood pump motor during operation is absorbed easily, consequently, still need cool down motor controller, this application is equipped 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 of water storage device 50 to send to water cooling jacket 10 to cool down motor controller.
To sum up, this application establishes water circulation 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 pulmonary membrane, effectively ensures ECMO's job stabilization nature and security, need not to set up in addition the heating device to pulmonary membrane simultaneously, effectively reduces ECMO's use cost.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present invention. In this specification, schematic representations of the above terms are not necessarily directed 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, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
Claims (5)
1. An ECMO blood warming device, wherein a blood pump motor and a lung membrane are disposed in the ECMO, the device comprising:
the water cooling sleeve is arranged outside the blood pump motor;
a heating water jacket disposed outside the lung membrane;
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 and heat the lung membrane;
the apparatus further comprises: a constant-temperature water mixing valve,
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 sleeve, the water outlet of the constant-temperature water mixing valve is connected with the water inlet of the heating water sleeve, and the constant-temperature water mixing valve is used for controlling the water temperature entering the heating water sleeve;
the apparatus further comprises: the control unit is used for controlling the control unit,
the control unit is used for controlling the 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 a first preset temperature;
the apparatus further comprises: the water storage device comprises 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;
the constant temperature water mixing valve also 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;
the water storage device is internally provided with a water pump so as to supply water in the water storage device to the water inlet of the water cooling sleeve and/or the cold water inlet of the constant-temperature water mixing valve through the water pump.
2. The device of claim 1, wherein a thermally conductive silicone is coated between the blood pump motor and the water-cooled jacket.
3. The apparatus of claim 2, wherein the water jacket is a corrosion resistant good conductor.
4. A device according to claim 3, wherein the water jacket is copper.
5. The apparatus of claim 1, wherein the water jacket is helically wound outside the blood pump motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110075052.5A CN112870545B (en) | 2021-01-20 | 2021-01-20 | ECMO blood heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110075052.5A CN112870545B (en) | 2021-01-20 | 2021-01-20 | ECMO blood heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112870545A CN112870545A (en) | 2021-06-01 |
| CN112870545B true CN112870545B (en) | 2023-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110075052.5A Active CN112870545B (en) | 2021-01-20 | 2021-01-20 | ECMO blood heating device |
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| CN (1) | CN112870545B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117731879B (en) * | 2024-02-04 | 2024-07-05 | 湖南捷工医疗科技有限公司 | Temperature control device of membrane oxygenator |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1857745A (en) * | 2005-04-30 | 2006-11-08 | 清华大学 | Miniature blood temperature changing system based on distributed control of computer |
| US8545754B2 (en) * | 2009-04-23 | 2013-10-01 | Medtronic, Inc. | Radial design oxygenator with heat exchanger |
| CN205956444U (en) * | 2016-08-09 | 2017-02-15 | 谭世龙 | Automatic thermostatic water mixing valve |
| CN209075647U (en) * | 2018-06-12 | 2019-07-09 | 上海立马医疗器械有限公司 | A kind of Novel blood perfusion device |
| CN209351215U (en) * | 2019-01-08 | 2019-09-06 | 河南机电职业学院 | A kind of pure electric automobile energy conservation heating device |
| CN110583620A (en) * | 2019-08-26 | 2019-12-20 | 广东顺德工业设计研究院(广东顺德创新设计研究院) | Temperature adjusting device, method and device for mechanical perfusion of isolated lung |
| CN215308951U (en) * | 2021-01-20 | 2021-12-28 | 深圳市赛恒尔医疗科技有限公司 | ECMO blood heating device |
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Address after: 610000 room 1, floor 1, unit 1, building 3, No. 88, Bayi Road north section, Yongning Town, Wenjiang District, Chengdu, Sichuan Applicant after: Chengdu saihenger Medical Technology Co.,Ltd. Address before: 2101, unit 6, Qilin Mingdu, 8232 Baoan Avenue, Shaqi community, Xinqiao street, Bao'an District, Shenzhen, Guangdong 518000 Applicant before: Shenzhen saihenger Medical Technology Co.,Ltd. |
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