CN218980050U - Perfusate heating device - Google Patents
Perfusate heating device Download PDFInfo
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- CN218980050U CN218980050U CN202222493487.4U CN202222493487U CN218980050U CN 218980050 U CN218980050 U CN 218980050U CN 202222493487 U CN202222493487 U CN 202222493487U CN 218980050 U CN218980050 U CN 218980050U
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Abstract
The application discloses perfusate heating device includes: the clamping type graphene constant temperature heater E1 is used for heating; a temperature sensor B1 for detecting a temperature; the main control chip U1 is used for driving the clamping type graphene constant temperature heater E1, and driving the power-off protection circuit to perform power-off protection according to the temperature fed back by the temperature sensor B1. This application adopts centre gripping formula graphite alkene constant temperature heater E1, the mode that utilizes the centre gripping does not direct contact to pour the liquid in the pipe 1, avoid causing the pollution to the liquid in the pipe 1 that fills, the heating plate adopts graphite alkene can improve heat conduction efficiency simultaneously, better heats pouring the pipe 1, reduce the region that needs to heat, and cooperation constant temperature heater, temperature sensor B1 and main control chip U1, can realize the accurate control to heating temperature and further ensure heating and electrical safety through outage protection circuit, better adaptation ophthalmic surgery requirement, can the safe and controllable heat current ophthalmic pouring pipe 1.
Description
Technical Field
The application relates to the technical field of power electronics, in particular to a perfusate heating device.
Background
Ophthalmic microsurgery (especially phacoemulsification, vitrectomy) has become the most predominant means of treating common diseases of the eye (cataracts, vitreous hemorrhage of various causes, retinal detachment, etc.). Because of the particularities of ocular mechanisms, continuous intraocular fluid infusion is required to maintain the balance of intraocular pressure during microsurgery, particularly when morcellating, cutting and aspirating diseased tissue. The perfusion liquid used clinically at present is connected to operation equipment and is used under the room temperature (22-25 ℃) condition of an operating room. Because the perfusate is at a temperature well below body temperature, patient comfort is poor during surgery, especially vitrectomy (relatively long surgery times). When measuring the temperature in the eye of a human undergoing vitrectomy, it was found that there was a significant fluctuation in the temperature at different times during the procedure. The literature demonstrates that rapid fluctuations in temperature during vitreoretinal surgery may affect the restoration of visual function. In addition, moderate warming of the perfusate (32-35 ℃) can prevent the cascade of destructive inflammation; preventing disruption of the blood water barrier leading to apoptosis and local edema; reducing nerve tissue damage caused by ischemia reperfusion; reducing oxygen metabolism demand; inducing release of the protective protein; reducing the occurrence of postoperative cardiovascular and cerebrovascular accidents.
In order to achieve the purpose of heating output liquid or blood, the medical blood transfusion warmer in the prior art needs to introduce the heating liquid into the warmer and then discharge the heated liquid from the warmer. In addition, the blood transfusion and infusion heating device can achieve the purpose of heating output liquid, but the inside needs to be coiled with a perfusion tube, the occupied length of the perfusion tube is too long, a power supply needs to be connected, and the blood transfusion and infusion heating device is not suitable for being used on an ophthalmic operating table.
Thus, the prior art generally suffers from the following drawbacks: 1. the current transfusion and blood transfusion heating scheme can not realize aseptic treatment and can not be applied to an ophthalmic operating table. 2. Most of the devices adopt external power supply, which is not suitable for aseptic operation in operation. 3. The irrigation lines that need to be wrapped or heated are too long to meet ophthalmic surgical needs. 4. The output temperature of the partial heating equipment can be set, the real-time monitoring of the output temperature is lacked, and the safety is insufficient due to the protection measures exceeding the preset temperature. 5. In order to relieve discomfort caused by low temperature of flushing liquid, the operating rooms and preoperative preparation rooms of some hospitals are provided with thermostats for keeping the flushing liquid at constant temperature, but in the flushing process, the liquid is still exposed to room temperature and the output temperature is not constant.
Therefore, there is a need for a perfusate heating device that can accommodate ophthalmic surgery requirements and that can safely and controllably heat existing ophthalmic perfusion tubes.
Disclosure of Invention
In view of the above, the present application aims to provide a perfusate heating device that can adapt to ophthalmic surgery requirements and that can safely and controllably heat an existing ophthalmic perfusion tube 1. The specific scheme is as follows:
a perfusate heating device, comprising: the device comprises a clamping type graphene constant temperature heater E1, a main control chip U1, a temperature sensor B1 and a power-off protection circuit;
the main control chip U1 is respectively connected with the clamping type graphene constant temperature heater E1, the temperature sensor B1 and the power-off protection circuit;
the clamping type graphene constant temperature heater E1 is used for clamping the pouring tube 1 and heating a clamped area of the pouring tube 1;
the temperature sensor B1 is used for detecting the temperature of the heated perfusion tube 1;
the main control chip U1 is used for driving the clamping type graphene constant temperature heater E1, and driving the power-off protection circuit to perform power-off protection according to the temperature fed back by the temperature sensor B1.
Optionally, a battery for supplying power is also included.
Optionally, the perfusion tube also comprises a display screen U2 which is connected with the main control chip U1 and used for displaying the current liquid temperature in the perfusion tube 1.
Optionally, the temperature sensor B1 is attached to the pouring tube 1 after the pouring tube 1 is clamped by the clamping type graphene constant temperature heater E1.
Optionally, the device further comprises a work prompt lamp connected with the main control chip U1 and used for prompting that the clamping type graphene constant temperature heater E1 is in a heating state.
Optionally, a power supply switch S1 connected in series on the power supply line is also included.
Optionally, the device further comprises a control button 2 connected with the main control chip U1 and used for receiving user operation to adjust the heating temperature.
Optionally, the clamping type graphene constant temperature heater E1 wraps the clamped area and heats the clamped area after clamping the perfusion tube 1.
Optionally, the temperature sensor B1 measures the temperature of a region downstream of the clamped region of the perfusion tube 1.
Optionally, a medical-grade silicone housing is also included for protecting the circuitry.
In this application, a perfusate heating device includes: the device comprises a clamping type graphene constant temperature heater E1, a main control chip U1, a temperature sensor B1 and a power-off protection circuit; the main control chip U1 is respectively connected with the clamping type graphene constant temperature heater E1, the temperature sensor B1 and the power-off protection circuit; the clamping type graphene constant temperature heater E1 is used for clamping the perfusion tube 1 and heating a clamped area of the perfusion tube 1; a temperature sensor B1 for detecting the temperature of the heated perfusion tube 1; the main control chip U1 is used for driving the clamping type graphene constant temperature heater E1, and driving the power-off protection circuit to perform power-off protection according to the temperature fed back by the temperature sensor B1.
This application adopts centre gripping formula graphite alkene constant temperature heater E1, the mode that utilizes the centre gripping does not direct contact to pour the liquid in the pipe 1, avoid causing the pollution to the liquid in the pipe 1 that fills, the heating plate adopts graphite alkene can improve heat conduction efficiency simultaneously, better heats pouring the pipe 1, reduce the region that needs to heat, and cooperation constant temperature heater, temperature sensor B1 and main control chip U1, can realize the accurate control to heating temperature and further ensure heating and electrical safety through outage protection circuit, better adaptation ophthalmic surgery requirement, can the safe and controllable heat current ophthalmic pouring pipe 1.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings may be obtained according to the provided drawings without inventive effort to a person skilled in the art.
Fig. 1 is a schematic circuit topology diagram of a perfusate heating device according to an embodiment of the present application;
fig. 2 is a schematic diagram of clamping a clamping type graphene constant temperature heater according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
The embodiment of the application discloses perfusate heating device, see fig. 1, and the device includes: the device comprises a clamping type graphene constant temperature heater E1, a main control chip U1, a temperature sensor B1 and a power-off protection circuit;
the main control chip U1 is respectively connected with the clamping type graphene constant temperature heater E1, the temperature sensor B1 and the power-off protection circuit;
the clamping type graphene constant temperature heater E1 is used for clamping the perfusion tube 1 and heating a clamped area of the perfusion tube 1;
a temperature sensor B1 for detecting the temperature of the heated perfusion tube 1;
the main control chip U1 is used for driving the clamping type graphene constant temperature heater E1, and driving the power-off protection circuit to perform power-off protection according to the temperature fed back by the temperature sensor B1.
Specifically, in order to adapt to ophthalmic perfusion tube 1, and do not cause the pollution to the liquid in perfusion tube 1, adopt the heater of centre gripping formula, through the surface of holding perfusion tube 1, thereby through the indirect heating perfusion tube 1 inside liquid of heating to the heating pipe outside, realize not direct contact perfusion tube 1 inside liquid heats, avoided causing the pollution to perfusion tube 1 inside liquid, simultaneously, adopt constant temperature heater can effective control heating temperature, can not make perfusion tube 1 interior liquid by the overheating, the security of heating process has been improved, further, in order to improve heating efficiency, avoid the material that needs the centre gripping overlength perfusion tube 1 just can play the heating effect, adopt the heating plate to heat the graphene constant temperature heater of graphene to carry out two-sided heating to perfusion tube 1, adopt the heating plate heat conduction efficiency of graphene material higher, can be better with the heat conduction to perfusion tube 1 on, 360 all-round promotion perfusion tube 1's temperature fast, make the centre gripping need not the perfusion tube 1 just can effectually heat.
Specifically, in order to avoid polluting the liquid in the perfusion tube 1, the temperature sensor B1 cannot contact the liquid in the perfusion tube 1, and only the temperature of the heated perfusion tube 1 can be measured, and since the material of the perfusion tube 1 and the parameters such as the temperature conductivity can be known in advance, the main control chip U1 can calculate the temperature of the liquid in the perfusion tube 1 according to the temperature of the perfusion tube 1, so that the temperature of the surface of the perfusion tube 1 can be indirectly measured by using the temperature sensor B1 to measure the temperature of the heated liquid in the perfusion tube 1.
Specifically, the temperature sensor B1 can measure the vicinity of the clamped area of the perfusion tube 1, and preferably, the downstream of the clamped area is measured, the upstream is divided according to the flow direction of the liquid in the perfusion tube 1, the temperature sensor B1 is arranged at the downstream of the clamped area, so that the temperature of the liquid in the perfusion tube 1 after being heated can be measured better, and meanwhile, the temperature sensor B1 is arranged at different positions, so that different temperatures can be obtained, for example, the temperature sensor B1 is arranged at a position close to the outlet of the perfusion tube 1, at this time, the temperature measured by the temperature sensor B1 is closer to the temperature when the liquid in the actual perfusion tube 1 flows out and is used, the temperature measured by the temperature sensor B1 is closer to the position of the clamped graphene constant temperature heater E1, at this time, the temperature measured by the temperature sensor B1 is closer to the actual output temperature of the liquid in the perfusion tube 1 after being heated by the clamped graphene constant temperature heater E1, and the temperature sensor B1 can be adjusted according to the actual application requirements, for example, the temperature sensor B1 can be measured by the temperature sensor B1, and the graphene constant temperature heater can be heated, and the temperature sensor B1 can be heated by the actual temperature heater, and the graphene heater can be heated by the temperature sensor B1.
Further, in order to realize integration of the perfusate heating device, the temperature sensor B1 may be disposed adjacent to the clamped graphene constant temperature heater E1, and measure the external temperature of the perfusion tube 1 downstream of the clamped region of the perfusion tube 1.
Specifically, the main control chip U1 may convert the temperature of the liquid in the perfusion tube 1 into the temperature of the liquid in the perfusion tube 1 according to the temperature of the perfusion tube 1 fed back by the temperature sensor B1, and may receive the target output temperature input by the user, and drive the clamping type graphene constant temperature heater E1 to heat the perfusion tube 1 according to the temperature fed back by the temperature sensor B1, so as to implement closed loop control of the heating process, and continuously drive the temperature of the liquid in the perfusion tube 1 to approach the target output temperature input by the user, so as to implement precise control of heating.
It can be seen that, this application embodiment adopts centre gripping formula graphite alkene constant temperature heater E1, the mode that utilizes the centre gripping does not direct contact to pour into the liquid in pipe 1, avoid causing the pollution to the liquid in the pipe 1 that fills, the heating plate adopts graphite alkene can improve heat conduction efficiency simultaneously, better heats pouring pipe 1, reduce the region that needs to heat, and cooperation constant temperature heater, temperature sensor B1 and main control chip U1, can realize the accurate control to heating temperature and further ensure heating and power consumption safety through outage protection circuit, better adaptation ophthalmic surgery requirement, can be safe and controllable heat current ophthalmic pouring pipe 1.
Although the embodiment of the present application is directed to heating the perfusion fluid in the perfusion tube 1 for ophthalmic use, the present utility model may be applied to a perfusion tube, a blood transfusion tube, or a wash tube.
Further, the embodiment of the application also discloses a perfusate heating device, and compared with the previous embodiment, the embodiment further describes and optimizes the technical scheme, and is shown in fig. 1.
Specifically, the device may further include a display screen U2 connected to the main control chip U1 and configured to display the liquid temperature in the current perfusion tube 1, through the display screen U2, the user may know the liquid temperature in the current perfusion tube 1 conveniently, so that the user may adjust the heating temperature, meanwhile, the display screen U2 may display not only the liquid temperature in the current perfusion tube 1, that is, the actual output temperature of the liquid, but also the target output temperature that the user inputs and wants to reach, where the main control chip U1 is based on the temperature fed back by the temperature sensor B1, the actual output temperature of the liquid is controlled by a closed loop to approach the target output temperature, for example, the target output temperature input by the user is 38 ℃, the actual output temperature reaches 37 ℃ after the heating period, so that, in order to make the actual output temperature continuously raise to 38 ℃ and in order to continuously heat the perfusion tube 1, the actual output temperature is raised to 38 ℃, if the target output temperature is set to 39 ℃, the actual output temperature reaches 39 ℃ and if the actual output temperature is higher than the input temperature is 38 ℃, the main control chip U1 is able to lower the target output temperature to be set to 37 ℃ after the actual output temperature is set to 38 ℃. The display screen U2 may be specifically a liquid crystal display screen.
Specifically, for better measurement fills the temperature of pipe 1, temperature sensor B1 behind the graphite alkene constant temperature heater E1 centre gripping fill pipe 1 with fill pipe 1 laminating to better more accurate measurement fills the temperature of pipe 1, simultaneously, temperature sensor B1 can specifically adopt electron temperature sensor.
Specifically, the working prompt lamp which is connected with the main control chip U1 and used for prompting the clamping type graphene constant temperature heater E1 to be in a heating state can be further included, and a user can be better informed of whether the heater is in a working state or not through the prompt lamp, for example, when the heater is in the working state, the working prompt lamp can display a green light to inform the user that the heater is in the working state.
Specifically, the control button 2 connected with the main control chip U1 may be further included, and is configured to receive a user operation to adjust the heating temperature, where the user inputs a corresponding control signal to the main control chip U1 through the control button 2, and the main control chip U1 may adjust the input temperature according to the control signal, and perform operations such as switching the heater.
Specifically, in order to improve portability, reduce the requirement to the place of use, can also include the battery that is used for supplying power, the battery can supply power to each item power consumption circuit and device in the perfusate heating device of this application embodiment, realizes not having to external power supply in the certain time.
Specifically, the perfusion fluid heating device also comprises a power supply switch S1 connected in series on the power supply line, and the power supply of the battery or the power supply to the perfusion fluid heating device can be controlled through the power supply switch S1, so that the switch of the perfusion fluid heating device can be controlled. The power supply switch S1 can be used as a power-off protection circuit, the main control chip U1 can control the power supply switch S1 to be disconnected, so that power-off protection is realized, and the power-off protection circuit can also be a protection circuit in the main control chip U1, namely the main control chip U1 comprises the power-off protection circuit.
Specifically, referring to fig. 2, in order to improve heating efficiency on a limited distance, after the clamping perfusion tube 1 is clamped, the clamped area is wrapped by the clamping type graphene constant temperature heater E1 and double-sided heating is performed, so that 360-degree omnibearing heating of the clamped area is realized, and heating efficiency is improved.
Specifically, the infusion liquid heating device further comprises a shell for protecting a circuit, the shell can wrap circuit parts of devices such as a clamping type graphene constant temperature heater E1, a main control chip U1, a temperature sensor B1, a power-off protection circuit, a battery, a display screen U2 and the like in the infusion liquid heating device, the display screen U2 can be embedded on the surface of the shell, the clamping type graphene constant temperature heater E1 can extend out of the shell from an opening reserved in the shell so as to clamp the infusion tube 1, a plurality of other openings can be formed in the shell so as to enable parts, such as a power supply switch S1, the temperature sensor B1 and the like, which need to extend out of the shell to be sealed, so that the whole infusion liquid heating device supports ethylene oxide disinfection and high-temperature high-pressure disinfection, the infusion liquid heating device can be used on an aseptic operating table, and the shell can be a medical-level silicone shell for supporting the disinfection process.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. are based on the orientation or positional relationship shown in the drawings, are for convenience of description only, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application, and the specific meaning of the terms described above may be understood by those of ordinary skill in the art as appropriate. The terms "first," "second," and "second" 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. The meaning of "a plurality of" is two or more, unless specifically defined otherwise.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A perfusate heating device, comprising: the device comprises a clamping type graphene constant temperature heater (E1), a main control chip (U1), a temperature sensor (B1) and a power-off protection circuit;
the main control chip (U1) is respectively connected with the clamping type graphene constant temperature heater (E1), the temperature sensor (B1) and the power-off protection circuit;
the clamping type graphene constant temperature heater (E1) is used for clamping the pouring tube (1) and heating a clamped area of the pouring tube (1);
the temperature sensor (B1) is used for detecting the temperature of the heated perfusion tube (1);
the main control chip (U1) is used for driving the clamping type graphene constant temperature heater (E1), and driving the power-off protection circuit to perform power-off protection according to the temperature fed back by the temperature sensor (B1).
2. Perfusate heating device according to claim 1, further comprising a display screen (U2) connected to said main control chip (U1) for displaying the current temperature of the liquid in said perfusate tube (1).
3. Perfusate heating device according to claim 1, characterized in that the temperature sensor (B1) is attached to the perfusate tube (1) after the perfusate tube (1) is clamped by the clamped graphene constant temperature heater (E1).
4. The perfusate heating device according to claim 1, further comprising a work indicator light connected to the main control chip (U1) for indicating that the clamp-type graphene constant temperature heater (E1) is in a heated state.
5. Perfusate heating device according to claim 1, further comprising a control button (2) connected to the main control chip (U1) for receiving a user operation to adjust the heating temperature.
6. The perfusate heating device of claim 1, further comprising a battery for powering the power supply.
7. Perfusate heating device according to claim 6, further comprising a power switch (S1) connected in series on the power supply line.
8. Perfusate heating device according to any of claims 1 to 7, wherein said clamped graphene constant temperature heater (E1) after clamping of said perfusate tube (1) encloses said clamped area and heats it.
9. Perfusate heating device according to any of claims 1 to 7, characterized in that said temperature sensor (B1) measures said temperature of a region downstream of a clamped region of said perfusate tube (1).
10. The perfusate heating device according to any of claims 1 to 7, further comprising a medical grade silicone housing for protecting the circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222493487.4U CN218980050U (en) | 2022-09-20 | 2022-09-20 | Perfusate heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222493487.4U CN218980050U (en) | 2022-09-20 | 2022-09-20 | Perfusate heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218980050U true CN218980050U (en) | 2023-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222493487.4U Active CN218980050U (en) | 2022-09-20 | 2022-09-20 | Perfusate heating device |
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| Country | Link |
|---|---|
| CN (1) | CN218980050U (en) |
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- 2022-09-20 CN CN202222493487.4U patent/CN218980050U/en active Active
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