Rapid temperature control system for extracorporeal circulation

Abstract

The utility model discloses a quick temperature control system for extracorporeal circulation, which belongs to the technical field of medical equipment and comprises a heat exchange device, a cover body, a temperature control blanket, pipelines, a heat exchange water tank and a water injection funnel, the cover body is mounted above the heat exchange water tank, the water injection funnel is mounted above the cover body, the bottom of the water injection funnel penetrates through the cover body, one ends of the pipelines are inserted into the heat exchange water tank, and the other ends of the pipelines are inserted into the heat exchange water tank. The heat exchange device is installed in the heat exchange water tank, the upper portion of the heat exchange device is connected with a cable, the cable penetrates out of the cover body and is connected with the upper portion of the cover body, and the water injection funnel penetrates through the cover body and is inserted in the heat exchange water tank. The problem that in the prior art, due to the fact that existing equipment cannot guarantee constant temperature supply to a temperature control blanket, the effect of lowering the temperature of the brain of a patient is poor is solved. The practicability of the water tank is improved, and the curing probability of a patient is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a rapid temperature control system for extracorporeal circulation. Background Art

[0002] Acute hypoxic-ischemic brain injury (such as after cardiopulmonary resuscitation and severe asphyxia) is a common critical illness in intensive care units. It has a high mortality rate, and survivors often have neurological sequelae. Targeted temperature management of patients is a treatment method that has been proven to reduce brain damage and improve neurological prognosis. That is, artificially and physically lowering the whole body temperature or local brain temperature, thereby reducing brain oxygen consumption and promoting brain function recovery.

[0003] At present, traditional hypothermia treatment methods include systemic hypothermia and local hypothermia. Systemic hypothermia method is to cool the skin surface or cool the blood vessels to reduce the body temperature to about 33°C, but its side effects can easily cause patients to have abnormal coagulation function, low immune function, respiratory tract infection, bedsores, arrhythmias, hypotension, electrolyte disorders, etc. Local hypothermia is to use ice caps or dressings to reduce temperature, which often cannot meet the requirements of hypothermia treatment.

[0004] Therefore, how to provide a rapid temperature control system for extracorporeal circulation to solve the problem that existing equipment cannot continuously provide a constant temperature to the patient's brain surface is a technical problem that needs to be urgently solved by those skilled in the art. Utility Model Content

[0005] To this end, the present invention provides a rapid temperature control system for extracorporeal circulation to solve the problem in the prior art that the existing equipment cannot ensure a constant temperature supply to the temperature control blanket, resulting in a poor effect on lowering the patient's brain temperature.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] The utility model discloses a rapid temperature control system for extracorporeal circulation, comprising:

[0008] A heat exchange water tank with a cover installed on top;

[0009] A water injection funnel is installed above the cover body, and the bottom of the water injection funnel passes through the cover body;

[0010] a plurality of pipes, one end of which is inserted into the heat exchange water tank and the other end of which is inserted into the temperature control blanket;

[0011] a heat exchange device, installed in the heat exchange water tank;

[0012] The upper portion of the heat exchange device is connected to a cable, the cable passes through the cover and is connected to the upper portion of the cover, and the water injection funnel passes through the cover and is inserted into the heat exchange water tank.

[0013] In a possible implementation, the heat exchange water tank includes:

[0014] An installation shell is connected to a cover body on the top, a horizontal baffle is installed in the middle, a vertical baffle is installed behind the horizontal baffle, a cold source space and a heat source space are formed between the vertical baffle and the horizontal baffle, a mixing space is formed between the installation shell and the horizontal baffle, the mixing space is arranged in front of the cold source space and the heat source space, the heat exchange device is inserted in the middle of the vertical baffle, and a temperature sensor is installed in the mixing space;

[0015] The return water pipe is arranged in pairs, one end of which passes through the horizontal baffle and the other end is arranged in the cold source space and the heat source space;

[0016] A one-way valve is inserted in the horizontal baffle.

[0017] In a possible implementation, the return water pipe is a one-way flow pipe.

[0018] In a possible implementation, the water injection funnel includes:

[0019] A water inlet channel, one end of which passes through the cover body and is disposed in the heat exchange water tank, and the other end of which is connected to a water inlet funnel;

[0020] A diverter assembly is installed in the water inlet funnel, and the diverter assembly is arranged above the water inlet channel;

[0021] A sealing cover is installed above the water inlet funnel.

[0022] In a possible implementation, the cover includes:

[0023] A mounting plate, mounted above the water exchange tank;

[0024] A display screen is installed above the mounting plate;

[0025] a connecting hole, arranged behind the display screen, wherein a cable is arranged in the connecting hole;

[0026] A socket is installed behind the connecting hole, and a water injection funnel is inserted into the socket.

[0027] In a possible implementation, the heat exchange device is a semiconductor refrigeration plate.

[0028] The utility model uses a heat exchange water tank connected to a temperature control blanket through a pipe, and then transmits the predetermined temperature to the surface of the patient's brain through the temperature control blanket, thereby realizing a physical cooling process. Water flows into the heat exchange water tank through a water injection funnel, and then a heat exchange device is used to heat and cool the water respectively. After completion, the cold water and hot water are mixed and used. After the temperature of the mixed water is monitored, it flows into the temperature control blanket through a pipe, so that a constant temperature can be used to cool the patient's brain, which makes up for the deficiency of the existing sub-hypothermia method in cooling the patient's brain temperature and improves the patient's cure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0030] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in size, without affecting the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.

[0031] Figure 1 A three-dimensional diagram of the rapid temperature control system for extracorporeal circulation provided by the utility model;

[0032] Figure 2 A cross-sectional view of a water exchange tank provided by the present utility model;

[0033] Figure 3 A cross-sectional view of the water injection funnel provided by the utility model;

[0034] Figure 4 A three-dimensional diagram of the cover provided by the utility model;

[0035] In the figure: 1 heat exchange device; 2 cover; 21 connection hole; 22 display screen; 23 mounting plate; 24 socket; 3 temperature control blanket; 4 pipeline; 5 heat exchange water tank; 51 mounting shell; 52 vertical baffle; 53 horizontal baffle; 54 return water pipe; 55 one-way valve; 6 water injection funnel; 61 sealing cover; 62 water inlet funnel; 63 water inlet channel; 64 diversion component. DETAILED DESCRIPTION

[0036] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can readily understand the other advantages and benefits of the present invention from the contents disclosed in this specification. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0037] Please refer to Figures 1-4 Now, a rapid temperature control system for extracorporeal circulation disclosed in the present utility model is described. The present utility model is composed of six parts, such as Figure 1 , comprising a heat exchange device 1, a cover 2, a temperature control blanket 3, pipes 4, a heat exchange water tank 5 and a water injection funnel 6. The cover 2 is installed above the heat exchange water tank 5, and the water injection funnel 6 is installed above the cover 2. The bottom of the water injection funnel 6 passes through the cover 2. One end of a plurality of pipes 4 is inserted into the heat exchange water tank 5, and the other end is inserted into the temperature control blanket 3. The heat exchange device 1 is installed in the heat exchange water tank 5. The upper part of the heat exchange device 1 is connected to a cable, which passes through the cover 2 and is connected to the upper part of the cover 2. The water injection funnel 6 passes through the cover 2 and is inserted into the heat exchange water tank 5. When the utility model is in use, water is poured into the heat exchange water tank 5 through the water injection funnel 6, and then the heat exchange device 1 is used to cool down and heat up the water respectively. After that, the hot water and warm water are mixed and passed into the temperature control blanket 3. The temperature control blanket 3 is then attached to the surface of the patient's brain to physically cool the patient down and bring the patient to a sub-hypothermia state.

[0038] In this embodiment, heat exchange device 1 is a semiconductor refrigeration chip. Utilizing the Peltier effect of semiconductor materials, when direct current passes through a galvanic couple formed by two different semiconductor materials in series, heat is absorbed and released at both ends of the galvanic couple, achieving cooling. Semiconductor refrigeration chips are a refrigeration technology that produces negative thermal resistance and are characterized by having no moving parts and high reliability. The two surfaces of the semiconductor refrigeration chip are in contact with the water, utilizing heat absorption and release at both ends of the galvanic couple to cool and heat the water. The amount of heat absorbed and released by the semiconductor refrigeration chip depends on the amount of power input. A cable is connected to display screen 22, and the amount of power can be adjusted by a control element within display screen 22 to achieve precise temperature control.

[0039] In a specific embodiment, Figure 2The heat exchange water tank 5 includes an installation shell 51, a vertical baffle 52, a horizontal baffle 53, a return water pipe 54 and a one-way valve 55. The installation shell 51 is connected to the top of the cover body 2, and a horizontal baffle 53 is installed in the middle. A vertical baffle 52 is installed behind the horizontal baffle 53. A cold source space and a heat source space are formed between the vertical baffle 52 and the horizontal baffle 53. A mixing space is formed between the installation shell 51 and the horizontal baffle 53. The mixing space is arranged in front of the cold source space and the heat source space. A heat exchange device 1 is inserted in the middle of the vertical baffle 52. A temperature sensor is installed in the mixing space. The return water pipe 54 is arranged in pairs, one end passes through the horizontal baffle 53, and the other end is arranged in the cold source space and the heat source space. The one-way valve 55 is inserted in the horizontal baffle 53. In the cold source space, the heat exchange device 1 can reduce the water temperature to a minimum of 4 degrees, while the heat source space can raise the water temperature to 40 degrees. In the mixing space, the cold and hot fluids can be mixed through the one-way valve 55 to achieve fast and accurate temperature control between 4 and 40 degrees. The temperature sensor can monitor the temperature of the mixing space in real time, and the flow control of the one-way valve 55 can make the mixing temperature more accurate. The return water pipe 54 flows the water from the mixing space back to the cold source space and the heat source space to achieve recycling. Two holes are opened on the upper side of the vertical baffle 52 where the heat exchange device 1 is installed. The cable is extended through the holes to prevent the cable from contacting the water and causing leakage.

[0040] In this embodiment, the return water pipe 54 is a one-way flow pipe. The use of the one-way flow pipe is to prevent the fluid in the cold source space and the hot source space from flowing into the mixing space, resulting in affecting the temperature of the water in the mixing space.

[0041] In a specific embodiment, Figure 3 The water injection funnel 6 includes a cover 61, a water inlet funnel 62, a water inlet channel 63, and a diverter assembly 64. One end of the water inlet channel 63 passes through the cover body 2 and is disposed in the heat exchange water tank 5. The other end is connected to the water inlet funnel 62. The diverter assembly 64 is installed in the water inlet funnel 62. The diverter assembly 64 is disposed above the water inlet channel 63, and the cover 61 is installed above the water inlet funnel 62. After opening the cover 61, water is poured into the water inlet funnel 62. The water flows through the diverter assembly 64 and enters the two water inlet channels 63 respectively, thereby replenishing water to the cold source space and the heat source space.

[0042] In a specific embodiment, Figure 4The cover 2 includes a connection hole 21, a display screen 22, a mounting plate 23, and a socket 24. The mounting plate 23 is mounted above the heat exchange water tank 5, and the display screen 22 is mounted above the mounting plate 23. The connection hole 21 is set behind the display screen 22, and a cable is set in the connection hole 21. The socket 24 is mounted behind the connection hole 21, and a water injection funnel 6 is inserted into the socket 24. The connection hole 21 is used to pass the cable through to connect the heat exchange device 1 to the display screen 22 for easy control, while the socket 24 is used to install the water injection funnel 61. The display screen 22 is designed to display the water volume and the temperature in the mixing space. At the same time, the display screen 22 will be connected to a control element. The heat exchange device 1 can be adjusted through the control element to achieve temperature control in the cold source space and the heat source space. The one-way valve 55 can also be controlled to ensure the accuracy of the temperature in the mixing space.

[0043] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, such modifications or improvements, without departing from the spirit of the present invention, are within the scope of protection claimed herein.

Claims

1. A rapid temperature control system for extracorporeal circulation, characterized in that: include: A water exchange tank (5) with a cover (2) installed on top; A water injection funnel (6) is installed above the cover body (2), and the bottom of the water injection funnel (6) passes through the cover body (2); a plurality of pipes (4), one end of which is inserted into the heat exchange water tank (5) and the other end of which is inserted into the temperature control blanket (3); A heat exchange device (1) is installed in the heat exchange water tank (5); The upper portion of the heat exchange device (1) is connected to a cable, the cable passes through the cover (2) and is connected to the upper portion of the cover (2), and the water injection funnel (6) passes through the cover (2) and is inserted into the heat exchange water tank (5).

2. The rapid temperature control system for extracorporeal circulation according to claim 1, characterized in that: The heat exchange water tank (5) comprises: A mounting shell (51) is connected to a cover (2) on the top, a horizontal baffle (53) is mounted in the middle, a vertical baffle (52) is mounted behind the horizontal baffle (53), a cold source space and a hot source space are formed between the vertical baffle (52) and the horizontal baffle (53), a mixing space is formed between the mounting shell (51) and the horizontal baffle (53), the mixing space is arranged in front of the cold source space and the hot source space, the heat exchange device (1) is inserted in the middle of the vertical baffle (52), and a temperature sensor is mounted in the mixing space; The return water pipe (54) is arranged in pairs, one end of which passes through the horizontal baffle (53) and the other end is arranged in the cold source space and the heat source space; A one-way valve (55) is inserted in the horizontal baffle (53).

3. The rapid temperature control system for extracorporeal circulation according to claim 2, characterized in that: The return water pipe (54) is a one-way flow pipe.

4. The rapid temperature control system for extracorporeal circulation according to claim 1, wherein: The water injection funnel (6) comprises: A water inlet channel (63), one end of which passes through the cover (2) and is disposed in the heat exchange water tank (5), and the other end of which is connected to a water inlet funnel (62); A diverter assembly (64) is installed in the water inlet funnel (62), and the diverter assembly (64) is arranged above the water inlet channel (63); A sealing cover (61) is installed above the water inlet funnel (62).

5. The rapid temperature control system for extracorporeal circulation according to claim 1, characterized in that: The cover (2) comprises: A mounting plate (23) mounted above the water exchange tank (5); A display screen (22) is mounted above the mounting plate (23); A connection hole (21) is provided behind the display screen (22), and a cable is provided in the connection hole (21); The socket (24) is installed behind the connecting hole (21), and a water injection funnel (6) is inserted into the socket (24).

6. The rapid temperature control system for extracorporeal circulation according to claim 1, characterized in that: The heat exchange device (1) is a semiconductor refrigeration plate.

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