CN114424973B - Tumor microwave thermal therapy system - Google Patents
Tumor microwave thermal therapy system Download PDFInfo
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- CN114424973B CN114424973B CN202210107124.4A CN202210107124A CN114424973B CN 114424973 B CN114424973 B CN 114424973B CN 202210107124 A CN202210107124 A CN 202210107124A CN 114424973 B CN114424973 B CN 114424973B
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- conical cover
- microwave
- air outlet
- tumor
- electric lifting
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
- A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
- A61B2018/00017—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids with gas
Abstract
The invention belongs to the technical field of microwave hyperthermia, and discloses a tumor microwave hyperthermia system, which comprises a treatment bed and a mounting frame, wherein a microwave radiator is arranged on the mounting frame, a conical cover is sleeved on the microwave radiator, a circle of reflecting layer is arranged at the upper part of the inner side surface of the conical cover, at least one air outlet is arranged in the conical cover, the air outlet is connected with a cold air source through a hose, and a plurality of air outlet holes are uniformly distributed on the circumference of the lower part of the conical cover; the bottom of the conical cover is provided with a circle of rubber ring, the rubber ring is internally provided with a heat conductor, the lower end of the heat conductor is exposed to the bottom surface of the rubber ring, the air outlet is internally provided with a radiating fin, and the radiating fin is connected with the heat conductor. According to the tumor microwave thermal therapy system, cold air is blown to the skin through the air outlet to cool the skin, heat of the skin is taken away, meanwhile, the heat conductor contacts the skin to transfer the heat to the radiating fins, when the air is discharged from the air outlet, the heat of the radiating fins is taken away, and the combination of the two modes can effectively utilize the cold air, so that the cooling speed is improved.
Description
Technical Field
The invention belongs to the technical field of microwave hyperthermia, and particularly relates to a tumor microwave hyperthermia system.
Background
The microwave tumor heat treatment is one method of tumor treatment, and has been used widely in clinical medicine to kill tumor cell and combined with local tumor heat treatment to raise the clinical effect of tumor radiotherapy and the effect of comprehensive heat and radiation treatment.
As shown in fig. 1, most of the tumor microwave hyperthermia apparatuses used in clinic are purchased products, and during the use, the inventor finds that at least the following problems exist in the existing tumor microwave hyperthermia apparatuses: in order to ensure the treatment effect, the temperature of tumor tissues needs to be heated to 43-45 ℃ in an effective treatment high-temperature area, the output power needs to be adjusted in order to realize the treatment of tumor tissues with different depths, when the output power is high, the surface of the skin is easy to cause scalding, the recovery time is long after scalding, the discomfort of a patient is aggravated, and the treatment effect is influenced.
Disclosure of Invention
The present invention aims to solve the above technical problems at least to some extent. For this purpose, the invention aims to provide a tumor microwave hyperthermia system.
The technical scheme adopted by the invention is as follows:
a tumor microwave thermal therapy system, which comprises a therapeutic bed; one side of the treatment bed is provided with a mounting frame, a microwave radiator is arranged on the mounting frame, a conical cover is detachably sleeved on the microwave radiator, a circle of reflecting layer is arranged on the upper part of the inner side surface of the conical cover, at least one air outlet is arranged in the conical cover, the air outlet is connected with a cold air source through a hose, and a plurality of air outlet holes are uniformly distributed on the circumference of the lower part of the conical cover; the bottom of the conical cover is provided with a circle of rubber ring, the rubber ring is internally provided with a heat conductor, the lower end of the heat conductor is exposed to the bottom surface of the rubber ring, the air outlet is internally provided with a radiating fin, and the radiating fin is connected with the heat conductor.
Preferably, the air outlet is connected with a blowing pipe, a plurality of clamping seats are arranged on the outer side face of the conical cover, the blowing pipe is arranged on the clamping seats, and an outlet at the upper end of the blowing pipe is arranged towards the microwave radiator; two sections of diffusion cavities which are in a horn shape are arranged in the blowpipe in a back direction, and an air inlet hole is arranged at the joint of the two sections of diffusion cavities.
Preferably, the device further comprises a controller, wherein the inner side surface of the conical cover is provided with a temperature detector, the controller is respectively and electrically connected with the cold air source, the microwave radiator and the temperature detector, the temperature detector is used for detecting the temperature of the skin at the focus when the microwave radiator works, the controller is used for starting the cold air source when the temperature detected by the temperature detector reaches a preset first temperature value and closing the microwave radiator when the temperature detected by the temperature detector reaches a preset second temperature value, and the preset second temperature value is larger than the preset first temperature value.
Preferably, a rotating seat is arranged on the inner side surface of the conical cover, a rotating shaft is rotatably arranged on the rotating seat, and the temperature detector is arranged on the rotating shaft.
Preferably, the treatment couch comprises an electric lifting device and a couch body arranged on the electric lifting device, and the electric lifting device is electrically connected with the controller.
Preferably, the mounting frame comprises an electric lifting bracket, the microwave radiator is arranged on the electric lifting bracket, a plurality of pressure sensors are uniformly distributed on the bottom surface of the rubber ring, the pressure sensors and the electric lifting bracket are electrically connected with the controller, and when the pressure value detected by at least one pressure sensor reaches a preset pressure value, the controller controls the electric lifting bracket to stop descending.
Preferably, the mounting frame comprises a base, the electric lifting bracket is mounted on the base, and the bottom of the base is provided with a universal wheel with a self-locking function.
Preferably, the controller is further electrically connected with an alarm and a display.
Preferably, the microwave radiator is provided with an external thread ring, the upper end of the conical cover is provided with an internal thread ring matched with the external thread ring, and the internal thread ring is connected with the upper end of the conical cover through a section of flexible corrugated pipe.
The beneficial effects of the invention are as follows:
1. when the temperature of the skin on the surface of a patient is too high, cold air is blown to the skin through the air outlet to cool, then the cold air is discharged through the air outlet, heat of the skin is taken away, meanwhile, the heat conductor contacts the skin to transfer the heat to the radiating fin, and when the air is discharged from the air outlet, the heat of the radiating fin is taken away. The combination of the two modes that the cold air is directly blown to the skin to take away heat and the heat conductor is contacted with the skin to take away heat can effectively utilize the cold air and improve the cooling speed.
2. The conical cover covers the part to be treated of the patient, the reflecting layer forms a reflecting cover with a hyperbolic cambered surface, and the reflecting cover focuses microwaves emitted by the microwave radiator, so that the microwave power density of the microwave radiator is increased, the directivity is good, and normal tissues around tumors can not be damaged.
Drawings
Fig. 1 is a schematic diagram of a prior art tumor microwave hyperthermia apparatus.
Fig. 2 is a schematic perspective view of a tumor microwave hyperthermia system according to the invention.
Fig. 3 is a cross-sectional view of the conical cap of the present invention.
Figure 4 is a cross-sectional view of a blowpipe of the present invention.
Fig. 5 is an enlarged view of a portion a in fig. 3.
Fig. 6 is a schematic block diagram of a tumor microwave hyperthermia system of the invention.
In the figure: 1-a treatment couch; 2-mounting frames; 3-a microwave radiator; 4-conical shields; a 5-reflecting layer; 6-an air outlet; 7-an air outlet hole; 8-rubber rings; 9-a heat conductor; 10-radiating fins; 11-a blowpipe; 12-a clamping seat; 13-a diffusion chamber; 14-an air inlet hole; 15-a temperature detector; 16-rotating; 17-rotating shaft; 18-an electric lifting device; 19-a bed body; 20-a base; 21-an electric lifting bracket; 22-an external thread ring; 23-an internal thread ring; 24-flexible bellows.
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. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
In the description of the embodiments of the present invention, it should be noted that, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship conventionally put in place when the product of the present invention is used, or the orientation or positional relationship conventionally understood by those skilled in the art is merely for convenience of describing the present invention and simplifying the description, and is not indicative or implying that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for understanding as indicating or implying a relative importance.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements.
As shown in fig. 2 to 6, a tumor microwave hyperthermia system of the present embodiment includes a treatment couch 1, a mounting frame 2, a microwave radiator 3, and a conical cover 4. The treatment couch 1 is used for supporting a patient body when the patient lies down, the mounting frame 2 is arranged on one side of the treatment couch 1, the microwave radiator 3 is fixedly arranged on the mounting frame 2, and the mounting frame 2 can move so as to move the microwave radiator 3 to the position (tumor position) to be treated of the patient. The conical cover 4 is detachably sleeved at the lower end of the microwave radiator 3. Specifically, the microwave radiator 3 is provided with an external thread ring 22, the upper end of the conical cover 4 is provided with an internal thread ring 23 matched with the external thread ring 22, and the conical cover 4 is installed through threaded connection, so that the microwave heat treatment device is suitable for reconstruction of the existing tumor microwave heat treatment.
When in use, the conical cover 4 is covered on the part to be treated of a patient, the upper part of the inner side surface of the conical cover 4 is stuck with a circle of reflecting layer 5, the reflecting layer 5 forms a reflecting cover with a hyperbolic cambered surface, and the reflecting cover focuses microwaves emitted by the microwave radiator 3, so that the microwave power density of the microwave radiator 3 is increased, the directivity is good, and normal tissues around tumors can not be damaged. Likewise, the conical cover 4 can effectively reduce the damage to the normal tissues around the conical cover 4.
Three air outlets 6 are uniformly distributed on the inner circumference of the conical cover 4, the outlet ends of the air outlets 6 are downward or obliquely downward, the inlet ends of the air outlets 6 are connected with a cold air source through a hose, and the cold air source is used for providing positive-pressure cold air. Three air outlet holes 7 are uniformly distributed on the circumference of the lower part of the conical cover 4. The bottom of conical cover 4 is equipped with round flexible rubber ring 8, is equipped with heat conductor 9 in the rubber ring 8, and the lower extreme of heat conductor 9 exposes in the bottom surface of rubber ring 8, is equipped with fin 10 in the apopore 7, and fin 10 links to each other with heat conductor 9, and fin 10 is the fence type in apopore 7 and distributes to can not influence the fluxion of apopore 7.
When the tumor microwave thermal therapy system is used, medical staff helps a patient lie on the treatment bed 1, after the microwave radiator 3 is aligned to the tumor position of the patient, the microwave radiator 3 and the conical cover 4 are moved downwards, so that the conical cover 4 covers the tumor position, the rubber ring 8 is attached to the skin of the patient, an approximately airtight space is formed in the conical cover 4, and only the air outlet 7 is communicated with the outside; at this time, the microwave radiator 3 is started to perform heat treatment, in the heat treatment process, along with the continuous operation of the microwave radiator 3, the skin on the surface of a patient can generate heat (in principle, the skin temperature cannot be higher than 43 ℃, otherwise scald can be caused), at this time, a cold air source is started, positive-pressure cold air is blown to the skin through the air outlet 6 to cool the skin, then the cold air is discharged through the air outlet hole, heat of the skin is taken away, and along with the continuous cold air entering, the temperature of the skin can be prevented from being too high.
Since cold air cannot be blown to the skin in contact with the bottom surface of the rubber ring 8 and the temperature is also raised by the close distance of this skin with the skin in the conical cover 4, the skin in contact with the bottom surface of the rubber ring 8 may be locally high in temperature, resulting in discomfort. The heat conductor 9 can transfer the heat of the skin in contact with the bottom surface of the rubber ring 8 to the heat sink 10, and at the same time take away the heat of the heat sink 10 when the air is discharged from the air outlet.
The combination of the two modes that the cold air is directly blown to the skin to take away heat and the heat conductor 9 is contacted with the skin to take away heat can effectively utilize the cold air and improve the cooling speed; of course, the temperature and pressure values of the positive pressure cold air generated by the cold air source can be adjusted to increase or slow down the cooling speed of the skin.
In another embodiment, each air outlet 7 is connected with a blowing pipe 11, a plurality of clamping seats 12 are arranged on the outer side surface of the conical cover 4, the blowing pipes 11 are arranged on the clamping seats 12, and the upper end outlets of the blowing pipes 11 are arranged towards the microwave radiator 3; the air coming out from the air outlet 7 can be blown to the microwave radiator 3 along the blowing pipe 11 to cool the microwave radiator 3, so that the problem of service life reduction caused by long-time high-temperature operation of the microwave radiator 3 can be prevented.
Since the temperature of the air coming out of the air outlet 7 is increased, the cooling effect on the microwave radiator 3 may not be obvious, two sections of diffusion cavities 13 which are in a horn shape are arranged in the blowing pipe 11 in a back way, an air inlet 14 is arranged at the joint of the two sections of diffusion cavities 13, the air flow speed at the joint of the two sections of diffusion cavities 13 is increased to form negative pressure, and the external air enters the blowing pipe 11 from the air inlet 14 and is mixed with the air coming out of the air outlet 7 and then blown to the microwave radiator 3.
In order to monitor the temperature of the skin during the tumor position thermotherapy, the damage temperature measurement is more accurate, but the damage is brought to the patient, so the nondestructive temperature measurement is generally adopted; the tumor microwave thermal therapy system further comprises a controller, a temperature detector 15, an alarm and a display, wherein the temperature detector 15 is arranged on the inner side surface of the conical cover 4, specifically, a swivel seat 16 is arranged on the inner side surface of the conical cover 4, a rotating shaft 17 is rotatably arranged on the swivel seat 16, the rotating shaft 17 can be locked after rotating in place, the temperature detector 15 is arranged on the rotating shaft 17, the temperature detector 15 can adopt an infrared temperature sensor or a contact type temperature sensor, and the temperature sensor is aligned to a temperature measuring position or is in skin contact with the temperature measuring position by adjusting the position of the rotating shaft 17 and the position of the temperature detector 15 arranged on the rotating shaft 17.
The controller is respectively and electrically connected with the cold air source, the microwave radiator 3 and the temperature detector 15, and the specific working principle is as follows: the temperature detector 15 is used for detecting the temperature of the skin at the focus when the microwave radiator 3 works, when the temperature detected by the temperature detector 15 reaches a preset first temperature value K (the first temperature value K is smaller than 43 ℃), the controller controls the cold air source to be started to cool the skin to prevent scalding, when the temperature detected by the temperature detector 15 reaches a preset second temperature value L (the preset second temperature value L is larger than the preset first temperature value K), the system is represented to have a fault, whether effective cooling is possible or not is possible, and the temperature detector 15 is wrong, the controller controls the microwave radiator 3 to be closed immediately, and the alarm is used for prompting staff through the alarm. In this process, the temperature value at which the detection is performed can be displayed by a display.
Since the patient who is subjected to microwave thermotherapy on a tumor is generally weak, it is difficult to go up and down the treatment couch 1, and thus the treatment couch 1 is configured to be up-down, the treatment couch 1 includes an electric lifting device 18 and a couch body 19 mounted on the electric lifting device 18, the electric lifting device 18 is electrically connected to the controller, and the electric lifting device 18 adopts the prior art, such as an electric lifting table and an electric hydraulic lifter.
The medical staff can input instructions through the buttons or the remote controller, and the controller controls the electric lifting device 18 to drive the bed 19 to descend, so that the patient can conveniently go up and down. After the patient gets on the bed 19 and lies down, the controller controls the electric lifting device 18 to drive the bed 19 to reset, thereby facilitating the operation and examination of medical staff.
The mounting frame 2 comprises a base 20 and an electric lifting support 21, the electric lifting support 21 is mounted on the base 20, universal wheels with self-locking functions are arranged at the bottom of the base 20, the microwave radiator 3 is mounted on the electric lifting support 21, and the electric lifting support 21 also adopts the prior art. Three pressure sensors are uniformly distributed on the bottom surface of the rubber ring 8, the pressure sensors are slightly protruded from the heat conductor 9, the pressure sensors and the electric lifting support 21 are electrically connected with the controller, the pressure sensors can detect the pressure of the rubber ring and the heat conductor when the rubber ring and the heat conductor contact the skin of a patient in real time, after the patient is on the bed 19 and lies down, the controller controls the electric lifting support 21 to drive the microwave radiator 3 and the conical cover 4 to descend, and the controller controls the electric lifting support 21 to stop descending until the pressure value detected by at least one pressure sensor reaches a preset pressure value. The magnitude of the preset pressure value should ensure that the rubber ring and the heat conductor cannot cause injury to human body at the moment, but the pressure exceeds the preset value to a certain extent, so that the injury to the body of a patient is likely to be caused.
The internal thread ring 23 on the microwave radiator 3 is connected with the upper end of the conical cover 4 through a section of flexible corrugated pipe 24, the flexible corrugated pipe 24 has certain elasticity, and even if the skin of a tumor position contacted with the rubber ring 8 is slightly inclined, the adhesion between the rubber ring and the skin can be realized through the elasticity of the flexible corrugated pipe 24.
The invention is not limited to the above-described alternative embodiments, and any person who may derive other various forms of products in the light of the present invention, however, any changes in shape or structure thereof, all falling within the technical solutions defined in the scope of the claims of the present invention, fall within the scope of protection of the present invention.
Claims (8)
1. A tumor microwave hyperthermia system, which is characterized in that: comprises a treatment bed (1); one side of the treatment bed (1) is provided with a mounting frame (2), the mounting frame (2) is provided with a microwave radiator (3), the microwave radiator (3) is detachably sleeved with a conical cover (4), the upper part of the inner side surface of the conical cover (4) is provided with a circle of reflecting layer (5), at least one air outlet (6) is arranged in the conical cover (4), the air outlet (6) is connected with a cold air source through a hose, and a plurality of air outlet holes (7) are uniformly distributed on the circumference of the lower part of the conical cover (4); the bottom of the conical cover (4) is provided with a circle of rubber ring (8), a heat conductor (9) is arranged in the rubber ring (8), the lower end of the heat conductor (9) is exposed to the bottom surface of the rubber ring (8), a cooling fin (10) is arranged in the air outlet hole (7), and the cooling fin (10) is connected with the heat conductor (9); the air outlet hole (7) is connected with the blowing pipe (11), a plurality of clamping seats (12) are arranged on the outer side face of the conical cover (4), the blowing pipe (11) is arranged on the clamping seats (12), and an outlet at the upper end of the blowing pipe (11) faces the microwave radiator (3); two sections of diffusion cavities (13) which are in a horn shape are arranged in the blowing pipe (11) in a back direction, and an air inlet hole (14) is arranged at the joint of the two sections of diffusion cavities (13).
2. The tumor microwave hyperthermia system of claim 1, wherein: the device is characterized by further comprising a controller, wherein the inner side surface of the conical cover (4) is provided with a temperature detector (15), the controller is respectively electrically connected with a cold air source, the microwave radiator (3) and the temperature detector (15), the temperature detector (15) is used for detecting the temperature of the skin at a focus when the microwave radiator (3) works, the controller is used for starting the cold air source after the temperature detected by the temperature detector (15) reaches a preset first temperature value and closing the microwave radiator (3) after the temperature detected by the temperature detector (15) reaches a preset second temperature value, and the preset second temperature value is larger than the preset first temperature value.
3. The tumor microwave hyperthermia system of claim 2, wherein: the inner side surface of the conical cover (4) is provided with a rotary seat (16), a rotary shaft (17) is rotatably arranged on the rotary seat (16), and a temperature detector (15) is arranged on the rotary shaft (17).
4. The tumor microwave hyperthermia system of claim 2, wherein: the treatment bed (1) comprises an electric lifting device (18) and a bed body (19) arranged on the electric lifting device (18), and the electric lifting device (18) is electrically connected with a controller.
5. The tumor microwave hyperthermia system of claim 2, wherein: the mounting frame (2) comprises an electric lifting support (21), the microwave radiator (3) is arranged on the electric lifting support (21), a plurality of pressure sensors are uniformly distributed on the bottom surface of the rubber ring (8), the pressure sensors and the electric lifting support (21) are electrically connected with the controller, and when the pressure value detected by at least one pressure sensor reaches a preset pressure value, the controller controls the electric lifting support (21) to stop descending.
6. The tumor microwave hyperthermia system according to claim 5, wherein: the mounting frame (2) comprises a base (20), an electric lifting support (21) is mounted on the base (20), and universal wheels with self-locking functions are arranged at the bottom of the base (20).
7. The tumor microwave hyperthermia system of claim 2, wherein: the controller is also electrically connected with an alarm and a display.
8. The tumor microwave hyperthermia system of claim 1, wherein: the microwave radiator (3) is provided with an external thread ring (22), the upper end of the conical cover (4) is provided with an internal thread ring (23) matched with the external thread ring (22), and the internal thread ring (23) is connected with the upper end of the conical cover (4) through a section of flexible corrugated pipe (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210107124.4A CN114424973B (en) | 2022-01-28 | 2022-01-28 | Tumor microwave thermal therapy system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210107124.4A CN114424973B (en) | 2022-01-28 | 2022-01-28 | Tumor microwave thermal therapy system |
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| CN114424973A CN114424973A (en) | 2022-05-03 |
| CN114424973B true CN114424973B (en) | 2023-07-21 |
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| CN202210107124.4A Active CN114424973B (en) | 2022-01-28 | 2022-01-28 | Tumor microwave thermal therapy system |
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Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5107832A (en) * | 1991-03-11 | 1992-04-28 | Raul Guibert | Universal thermotherapy applicator |
| CN2610946Y (en) * | 2003-02-18 | 2004-04-14 | 孙映辉 | Microwave thermal therapeutical equipment |
| CN1541628A (en) * | 2003-04-29 | 2004-11-03 | 陈绍勇 | Constantly high temperature high pressure oxygen bed microwave treating device for cancer prevention and treatment |
| CN205494695U (en) * | 2016-03-25 | 2016-08-24 | 东方嘉南（北京）科技有限公司 | Near -infrared therapeutic instrument |
| CN208229220U (en) * | 2017-12-11 | 2018-12-14 | 上海惠然商务咨询有限公司 | A kind of Microwave Hyperthermia System of noninvasive thermometric |
| CN208611586U (en) * | 2018-03-10 | 2019-03-19 | 于辉 | A kind of thermochemotherapy device for tumour |
| CN209302033U (en) * | 2018-06-08 | 2019-08-27 | 上海华源热疗技术有限公司 | A kind of thermal therapeutic apparatus with human body refrigerating function |
| CN111214322A (en) * | 2020-03-13 | 2020-06-02 | 大连奥瑞科技有限公司 | Central heat-gathering type thermal therapy heating device |
| CN113558758A (en) * | 2020-04-29 | 2021-10-29 | 孙映辉 | Physical targeting thermotherapy system for tumor treatment and control method thereof |
| CN111840807A (en) * | 2020-05-13 | 2020-10-30 | 尚圣杰 | Microwave radio frequency cooperative rotation irradiation tumor global thermotherapy instrument |
| CN214908023U (en) * | 2020-06-19 | 2021-11-30 | 深圳由莱智能电子有限公司 | Household depilator |
| CN113633458A (en) * | 2021-07-26 | 2021-11-12 | 黄秀荣 | A rapid cooling device for nursing of general branch of academic or vocational study |
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- 2022-01-28 CN CN202210107124.4A patent/CN114424973B/en active Active
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