CN110559559B

CN110559559B - Device for removing eye swelling fat

Info

Publication number: CN110559559B
Application number: CN201910803789.7A
Authority: CN
Inventors: 徐晓婷
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-28
Filing date: 2019-08-28
Publication date: 2021-04-06
Anticipated expiration: 2039-08-28
Also published as: CN110559559A

Abstract

The invention discloses a device for removing eye swelling fat, which comprises a central controller (6), a cooling fluid control part (3), a heating control part (4), a radio frequency control part (5) and a radio frequency handle (1); the central controller (6) is respectively connected with the cooling fluid control part (3), the heating control part (4), the radio frequency handle (1) and the radio frequency control part (5) and is used for receiving a preset program and a temperature feedback signal of a temperature sensor (133) on the radio frequency handle (1); and according to the requirements of a preset program and the temperature feedback signal, corresponding control instructions for the cooling fluid, the heating part and the radio frequency signal are respectively sent to the cooling fluid control part (3), the heating control part (4) and the radio frequency control part (5) so as to realize the control of the corresponding parts.

Description

Device for removing eye swelling fat

Technical Field

The invention belongs to the field of medical beauty equipment, and particularly relates to a device for removing eye swelling fat and a control method thereof.

Background

Puffy fat in the eye (i.e., bags) is caused by excessive fat accumulation in the orbit and thinning and weakening of the eyelid support structure (i.e., the musculus oculi), which has a large aesthetic impact on the face of the patient. The method for removing the eye puffy fat by an operation mode is an effective means for rapidly solving the problem of the eye bags. The conventional methods for removing the swelling fat of the eyes comprise an internal cutting method, an external cutting method, a vacuum liposuction method, a radio frequency method and a laser method for removing the eye bags. Among them, the endo-incision, exo-incision and liposuction are involved in interventional surgical treatment, usually with wounds, long recovery time, and the situation of unsatisfactory surgical effect may exist because the positions and amounts of the tissues to be cut and cut/sucked are all operated by the experience of the surgeon. Although the laser method has no wound, the laser may directly contact with the eyes during the operation process, so that the eyes can be burnt. The radio frequency method is the optimal treatment scheme in the prior art in terms of postoperative recovery and operational safety.

However, the current methods for removing the swelling fat of the eyes by radio frequency have the following problems: 1) the radio-frequency biological heat can cause the dermis of the fibrous septum to tighten, and then the inflammatory reaction after the trauma is started, so that the postoperative edema condition is obvious; 2) the fat distribution is not uniform enough and local skin depressions are likely to occur. Therefore, in view of these problems and the deficiencies of the prior art methods, it would be desirable to provide a device for removing puffy eye fat and a method for controlling the same, which overcome the above deficiencies of the prior art.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: provided are a device for removing swelling fat of an eye and a control method thereof, which can make fat ablation more uniform and can reduce postoperative inflammatory reaction and edema.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a device for removing eye puffy fat comprises a central controller 6, a cooling fluid control part 3, a heating control part 4, a radio frequency control part 5 and a radio frequency handle 1; the central controller 6 is respectively connected with the cooling fluid control part 3, the heating control part 4, the radio frequency handle 1 and the radio frequency control part 5, and is used for receiving a preset program and a temperature feedback signal of a temperature sensor 133 on the radio frequency handle 1; and according to the requirements of the preset program and the temperature feedback signal, corresponding control instructions for the cooling fluid, the heating component and the radio frequency signal are respectively sent to the cooling fluid control part 3, the heating control part 4 and the radio frequency control part 5, so as to realize the control of the corresponding components.

Further, the cooling fluid control section 3 is connected to a cooling fluid pump connected to a cooling fluid circuit constituted by the cooling fluid pump, the radio frequency handle 1 and a cooling fluid reservoir.

Furthermore, the heating control part 4 controls the temperature of a plurality of heating components on the surface of the operating head 13 of the radio frequency handle 1 according to the instruction of the central controller 6, thereby realizing the control of the heating temperature of the operating head 13 of the radio frequency handle 1.

Further, the rf control part 5 controls the rf signals of the three rf output heads 136 of the operating head 13 of the rf handle 1 according to the instruction of the central controller 6.

Further, the operating head 13 of the radio frequency handle 1 is integrally in a disc shape, the outermost circle of the disc portion is a heating region 131, 3 radio frequency output heads 136 are arranged inside an annular region surrounded by the heating region 131, cooling grooves 134 are further formed at blank positions between the 3 radio frequency output heads 136, and one or more temperature sensors 133 are arranged in the blank regions of the radio frequency output heads 136 and the cooling space.

Further, a plurality of heating elements 132, heat-resistant elements or optoelectronic devices are distributed inside the heating region 131.

Further, the cooling groove 134 is a groove structure recessed downward from the surface of the operating head 13, and a plurality of fluid inlets and fluid outlets 135 are uniformly distributed at the bottom of the groove structure; the plurality of fluid inlets and outlets 135 are connected to the inflow and outflow pipes, respectively, of the cooling fluid circuit; a cooling cover is sealingly provided on top of the cooling recess 134 and sealingly engages with the cooling recess 134 via a sealing member such as a gasket to form a sealed cooling space.

Furthermore, the cooling cover is made of metal with good heat conduction.

Further, the cooling cover is made of 304 stainless steel.

The control method of the device for removing the eye swelling fat sequentially comprises the following steps: heating, maintaining the temperature, applying radio frequency, maintaining the temperature and cooling.

The device for removing the swelling fat of the eyes and the control method thereof can enable the fat ablation to be more uniform and can reduce the inflammatory reaction and edema after the operation.

Drawings

FIG. 1 is a schematic structural diagram of an apparatus for removing puffy fat from the eye according to the present invention;

fig. 2 is a structural diagram of a radio frequency handle 1 of the device for removing eye puffiness fat provided by the invention;

FIG. 3 is a structural diagram of an operating head 13 at the end of a radio frequency handle 1 of the device for removing eye puffiness fat provided by the invention;

FIG. 4 is a temperature control diagram of the device for removing ocular bulge fat provided by the present invention;

fig. 5 is a timing chart of the rf loading of the apparatus for removing puffy fat from the eye according to the present invention.

Detailed Description

The method for locating the fault of the optical transmission network provided by the present invention will be described in further detail below.

The present invention will now be described in more detail with reference to the accompanying drawings, in which preferred embodiments of the invention are shown, it being understood that one skilled in the art may modify the invention herein described while still achieving the beneficial results of the present invention. Accordingly, the following description should be construed as broadly as possible to those skilled in the art and not as limiting the invention.

In the interest of clarity, not all features of an actual implementation are described. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. It will of course be appreciated that in the development of any such actual embodiment, numerous implementation-specific details must be set forth in order to achieve the developer's specific goals.

In order to make the objects and features of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise ratio for the purpose of facilitating and clearly aiding in the description of the embodiments of the invention.

As shown in fig. 1, the device for removing eye puffy fat provided by the invention comprises a central controller 6, a cooling fluid control part 3, a heating control part 4, a radio frequency control part 5 and a radio frequency handle 1.

Wherein, the central controller 6 is respectively connected with the cooling fluid control part 3, the heating control part 4, the radio frequency handle 1 and the radio frequency control part 5. The central controller 6 is used for receiving a preset program and a temperature feedback signal of a temperature sensor 133 on the radio frequency handle 1; and according to the requirements of the preset program and the temperature feedback signal, corresponding control instructions for the cooling fluid, the heating component and the radio frequency signal are respectively sent to the cooling fluid control part 3, the heating control part 4 and the radio frequency control part 5, so as to realize the control of the corresponding components. The above control is a common setting-feedback control method in the art, and the specific programming method of the control is known to those skilled in the art, and therefore, the detailed description thereof is omitted here. The central controller 6 may be a programmable controller, a single chip or other microcomputer/electronic control device.

The cooling fluid control 3 is connected to a cooling fluid pump which is connected to a cooling fluid circuit which is formed by the cooling fluid pump, the radio frequency handle 1 and a cooling fluid reservoir (not shown). The cooling fluid control part 3 controls the flow rate of the cooling fluid in the cooling circuit according to the instruction of the central controller 6, thereby realizing the control of the surface cooling temperature of the operating head 13 of the radio frequency handle 1.

The heating control part 4 controls the temperature of a plurality of heating parts on the surface of the operating head 13 of the radio frequency handle 1 according to the instruction of the central controller 6, thereby realizing the control of the heating temperature of the operating head 13 of the radio frequency handle 1.

The radio frequency control part 5 controls the radio frequency signals of the three radio frequency output heads 136 of the operating head 13 of the radio frequency handle 1 according to the instruction of the central controller 6.

As shown in fig. 2, the structure of the radio frequency handle 1 in the device provided by the invention is shown. Wherein the radio frequency handle 1 comprises a body having a horizontal portion 11 and a hand-held portion 12. A power line and a signal line are connected to the lower end of the hand-held portion 12, the power line is used for providing electric energy for the radio frequency handle 1, and the signal line is respectively connected with the heating control portion 4 and the radio frequency control portion 5, so that corresponding control signals are respectively transmitted to the heating component on the operating head 13 and the radio frequency output head 136.

The middle of the hand-held portion 12 of the radio-frequency handle 1 is also provided with a control panel 16, and the control panel 16 preferably comprises a circular liquid crystal digital display screen at the center for displaying the setting conditions of basic parameters (such as temperature, radio-frequency, time, cycle times and the like) of the current operation. Touch keys are distributed around the circular liquid crystal digital display screen and used for realizing the functions of selecting, adjusting or modifying the setting.

The rear end of the horizontal part 11 of the radio frequency handle 1 is provided with a cooling fluid interface 14, and the cooling fluid interface 14 is further connected with a cooling fluid input pipe and a cooling fluid output pipe 15. The cooling fluid inlet and outlet pipes 15 extend from the interior of the horizontal portion 11 to the cooling plate of the operating head 13, and allow circulation of the cooling fluid in the cooling zone of the operating head 13.

As shown in fig. 3, fig. 3 shows the structure of the operating head 13 of the radio frequency handle 1, the operating head 13 is a disk shape as a whole, the outermost circle of the disk part is a heating area 131, a plurality of heating elements 132 are distributed inside the heating area 131, preferably, the heating elements 132 are 4-8, more preferably, 8, the heating effect is most uniform, and the cost is not increased obviously. The heating element 132 may be a heat resistive element, such as: resistance wires, micro electric heating plates; but may also be opto-electronic devices such as infrared emitters, infrared diodes.

Inside the annular region enclosed by the heating region 131, 3 rf output heads 136 are provided, and the rf output heads 136 can continuously output rf signals to the fat-swollen portion of the patient, and the frequency of the rf signals is 40.67 MHz. By outputting the radio frequency with the frequency to the position where the eye bulges fat, water molecules in the cells can generate heat through friction, and the heat is transferred to the fat cells, so that the fat cells are gradually melted. By the above-mentioned manner of melting the excess fat, the swollen fat of the eye can be removed.

The 3 rf output heads 136 output rf signals with the same frequency, but the rf signals have different phases and a phase difference exists between the rf signals, so that the energy distribution of the rf signals is more uniform, which is more beneficial to melting the redundant fat more uniformly, and avoiding uneven distribution of fat blocks. Preferably, the 3 rf output heads 136 may be arranged in a triangular shape, and the 3 rf output heads 136 may also be arranged in a column or a row or in other forms.

At blank positions between the 3 rf output studs 136, cooling grooves 134 are also formed. The cooling recess 134 is a groove structure recessed downward from the surface of the operating head 13, and a plurality of fluid inlets and fluid outlets 135 are uniformly distributed at the bottom of the groove structure. The plurality of fluid inlets and outlets 135 are connected to the inflow and outflow tubes, respectively, of the cooling fluid circuit. A cooling cover (not shown) is sealingly provided on top of the cooling groove 134 and is sealingly engaged with the cooling groove 134 by a sealing member such as a gasket to form a sealed cooling space, so that the cooling fluid is sealed in the cooling space. The sealed space preferably has a Y-shape in plan view. Of course, other forms of graphics, such as a herringbone or other shapes, may be selected.

The cooling cover is made of metal with good heat conduction, and 304 stainless steel is preferably used as the material of the cooling cover in view of the biological safety of the surgical process. The cooling effect of the operating head 13 in the respective region is achieved by cooling fluid in a cooling space below the cooling cover.

The cooling fluid may be a cooling gas or a cooling liquid, and the temperature of the cooling fluid is set to 10 to 15 degrees. If the temperature of the cooling fluid is set too high, it is difficult to achieve the cooling effect, and if the temperature is too low, the cooling of the human tissue is excessive, which may cause the molten fat to be difficult to be discharged from the skin tissue, resulting in a situation in which edema is aggravated.

One or more temperature sensors 133 are disposed in the rf output head 136 and the free area of the cooling space, and the temperature sensors 133 are configured to measure the real-time temperature of the surface of the operating head 13 and the skin in substantial contact with the surface of the operating head 13. Preferably, the number of the temperature sensors 133 is 3. When there is one temperature sensor 133, the measured temperature is the temperature directly measured by the temperature sensor 133; when the sensor is plural, the measured temperature may be an average or a weighted average of direct measurements of the plural temperature sensors 133.

Referring to fig. 4, a control method of the apparatus for removing puffy fat at the eye region is described, as shown in fig. 4, which shows a control manner of one operation cycle, wherein 20-100 operation cycles are often required for completing the operation because the rf fat removal requires sufficient heat energy, and for a more concise illustration of the control method, only the control manner of one operation cycle is shown in fig. 4, and the control manners of the other operation cycles are the same as those in fig. 4. The temperatures appearing hereinafter are all temperature signals collected by the temperature sensor 133 located on the surface of the operating head 13.

S1, at the beginning of the operation (time T0), the operating head 13 of the radio frequency handle 1 is fully contacted with the pouch part, after the temperature is stabilized, the temperature is measured by the temperature sensor 133, and after the operating head 13 is fully contacted with the skin, the temperature of the operating head 13 is the reference temperature, namely the body temperature (T0).

S2, the heating area 131 of the operating head 13 is controlled to heat the skin of the pouch part, and the temperature measured by the temperature sensor 133 of the operating head 13 reaches T1 at time T1, wherein T1 is 110% of T0-120% of T0, and the skin and the adipose tissues of the eyes can be relaxed by heating the pouch part by 10% -20% of the temperature, so that preparation is made for subsequent radio frequency fat elimination.

Preferably, the ramp rate, i.e., (T1-T0)/(T1-T0) is less than 5 degrees Celsius per second and greater than 2 degrees Celsius per second. If the temperature rise rate is too high, the skin capillaries become congested, and capillary bleeding is caused in the radio frequency fat elimination stage, so that the edema is aggravated. If the heating rate is too low, the operation time can be prolonged, and the user experience is reduced.

S3, preserving heat of the eyes, namely stopping heating after the temperature detected by the sensor reaches T1, and preserving heat for time T2. Preferably, 1 minute < t2-t1<3 minutes. The eye skin and tissues can be fully relaxed within the heat preservation time, and heat can be transferred to the fat cells in a deeper layer, thereby being beneficial to subsequent thermal ablation.

S4, at time t2, applying 3 radio frequency signals simultaneously under the heat preservation state of the heating component, wherein the frequency of the radio frequency signals is 40.67 MHz. Due to the application of the radio frequency, the temperature detected by the temperature sensor 133 on the surface of the operating head 13 rises to the temperature T2 in a short period (time period T2-T3), and then enters a temperature stabilization phase after time T3. The T2 is the ablation temperature, which depends on the operation of the rf output head 136 and does not need to be individually preset.

Referring to fig. 5, three sets of rf signal output patterns are shown. As shown in fig. 5, the three sets of rf signals have the same frequency, and are all rf square waves of 40.67MHz, but the waveform of output 2 is 1/4 square wave periods later than the waveform of output 1; the square wave output 3 was also 1/4 square wave periods later than the square wave output 2, and the square wave output 3 was 1/2 square wave periods later than the square wave output 1. Through the application of the plurality of groups of radio frequencies with phase differences, the radio frequency energy is more uniformly distributed in time and space, the uniformity in the fat ablation process is facilitated, and skin depression after operation is avoided.

S5, maintaining the radio frequency output and the heating component in a heat preservation state during the time t2-t4, preferably, t4-t2 is between 1 minute and 3 minutes.

S6, stopping the radio frequency output at time T4, but maintaining the heating component in a heat preservation state, and stopping the radio frequency enables the detection temperature of the temperature sensor 133 on the surface of the operating head 13 at T5 to be reduced to T3, wherein T3 is preferably T3 which is 110% T0-120% T0, and the heat preservation is continued until time T6. Wherein t6-t5 is in the range of 3-5 minutes.

The second section of heat preservation time can make the adipose tissue after the radio frequency ablation fully pass through the skin at higher temperature and discharge, and the condition of edema can further be reduced to the abundant discharge of ablation fat and other tissue fluids.

S7, cooling the eyes through a cooling cover of the operating head 13 at a time T6-T7 to reduce the eye temperature to T4, wherein the T4 is set to be 50% T0-70% T0, and the temperature reduction rate (T3-T4)/(T7-T6) is controlled to be 0.5-1 ℃ per second. If the cooling rate is too great, excessive shrinkage of tissue may occur on the eye under rapid cooling, causing excessive stretching, such that the remaining fat undergoes excessive shrinkage with the excessively stretched tissue, resulting in uneven distribution of fat after surgery. If the temperature drops too slowly, the operation time can be prolonged, and the user experience can be reduced.

S8, at the stage of time T7-T8, the temperature is continuously controlled to be T4 through the cooling plate, the temperature is controlled to be T8-T7 for 2 minutes, and eye tissues can be stabilized through sufficient slow cooling, so that edema is further eliminated.

S9, in the stage of T8-T9, the eye temperature is adjusted back to the original body temperature T0 through the heating component, and therefore a surgical cycle is completed.

The foregoing shows and describes the general principles, essential features and advantages of the invention, which is, therefore, described only as an example of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but rather that the invention includes various equivalent changes and modifications without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A device for removing turgor fat from an eye, comprising: the device comprises a central controller (6), a cooling fluid control part (3), a heating control part (4), a radio frequency control part (5) and a radio frequency handle (1);

wherein, the central controller (6) is respectively connected with the cooling fluid control part (3), the heating control part (4), the radio frequency handle (1) and the radio frequency control part (5); the central controller (6) is used for receiving a preset program and a temperature feedback signal of a temperature sensor (133) on the radio frequency handle (1); according to the requirements of a preset program and the temperature feedback signal, corresponding control instructions for the cooling fluid, the heating part and the radio frequency signal are respectively sent to a cooling fluid control part (3), a heating control part (4) and a radio frequency control part (5) so as to realize the control of the corresponding parts;

the cooling fluid control part (3) is connected with a cooling fluid pump, the cooling fluid pump is connected into a cooling fluid loop, and the cooling fluid loop is composed of a cooling fluid pump, a radio frequency handle (1) and a cooling fluid storage; the cooling fluid control part (3) controls the flow of the cooling fluid in the cooling circuit according to the instruction of the central controller (6), thereby realizing the control of the surface cooling temperature of the operating head (13) of the radio frequency handle (1);

the heating control part (4) controls the temperatures of a plurality of heating parts on the surface of the operating head (13) of the radio frequency handle (1) according to the instruction of the central controller (6), thereby realizing the control of the heating temperature of the operating head (13) of the radio frequency handle (1);

the radio frequency control part (5) controls radio frequency signals of three radio frequency output heads (136) of an operating head (13) of the radio frequency handle (1) according to an instruction of the central controller (6);

the radio frequency handle (1) comprises a body with a horizontal part (11) and a handheld part (12); the lower end of the hand-held part (12) is connected with a power line and a signal line, the power line is used for providing electric energy for the radio frequency handle (1), and the signal line is respectively connected with the heating control part (4) and the radio frequency control part (5), so that corresponding control signals are respectively transmitted to the heating part and the three radio frequency output heads (136) on the operating head (13);

the middle part of the handheld part (12) of the radio frequency handle (1) is also provided with a control panel (16), the control panel (16) comprises a circular liquid crystal digital display screen positioned in the center, and touch keys are distributed around the circular liquid crystal digital display screen;

a cooling fluid interface (14) is arranged at the tail end of the horizontal part (11) of the radio frequency handle (1), and a cooling fluid input pipe and a cooling fluid output pipe (15) are further connected to the cooling fluid interface (14); the cooling fluid input pipe and the cooling fluid output pipe (15) extend from the interior of the horizontal part (11) to a cooling disc of the operating head (13), so that the circulation of cooling fluid in a cooling area of the operating head (13) is realized;

the whole operating head (13) is in a disc shape, the outermost ring of the operating head (13) is a heating area (131), a plurality of heating elements (132) are distributed inside the heating area (131), the number of the heating elements (132) is 4-8,

three radio frequency output heads (136) are arranged inside an annular region surrounded by the heating region (131), the three radio frequency output heads (136) respectively and continuously output radio frequency signals, and the frequencies of the radio frequency signals output by the three radio frequency output heads (136) are all 40.67 MHz;

the phases of the radio frequency signals output by the three radio frequency output heads (136) are different, and phase differences exist among the radio frequency signals; the three radio frequency output heads (136) are arranged in a mode that the central connecting line is triangular, or in a mode of one column or one row;

at blank positions among the three radio frequency output heads (136), cooling grooves (134) are also formed; the cooling groove (134) is a groove structure which is recessed downwards from the surface of the operating head (13), and a plurality of fluid inlets and fluid outlets (135) are uniformly distributed at the bottom of the groove structure; the plurality of fluid inlets and outlets (135) are connected to an inflow pipe and an outflow pipe, respectively, in the cooling fluid circuit; a cooling cover is arranged at the top of the cooling groove (134) in a sealing way, and is in sealing fit with the cooling groove (134) through a sealing gasket to form a closed cooling space, and the top view of the cooling space is Y-shaped; one or more temperature sensors (133) are arranged in the three radio frequency output heads (136) and the blank area of the cooling space, and the temperature sensors (133) are used for measuring the real-time temperature of the surface of the operating head (13) and the skin fully contacted with the surface of the operating head (13);

wherein the central controller (6) generates control instructions for controlling a plurality of cycle operations in accordance with the received booking program, wherein each cycle in the booking program comprises:

s1, at time T0, after the operating head (13) is in full contact with the skin, the reference temperature of the operating head (13) is the body temperature T0;

s2, controlling a heating area (131) of the operating head (13) to heat the skin of the pouch part, and enabling the temperature measured by a temperature sensor (133) of the operating head (13) to reach T1 at time T1, wherein T1 is 110% T0-120% T0; the heating rate is less than 5 ℃ per second and more than 2 ℃;

s3, preserving heat of the eyes, stopping heating after the temperature detected by the sensor reaches T1, and preserving heat for time T2; 1 min < t2-t1<3 min;

s4, at time t2, simultaneously applying radio frequency signals output by three radio frequency output heads (136) under the condition that the heating component is in a heat preservation state, wherein the frequency of the radio frequency signals is 40.67 MHz; three groups of radio frequency signals output by the three radio frequency output heads (136) are all radio frequency square waves of 40.67MHz, but the waveform output by a second radio frequency head in the three radio frequency output heads (136) is 1/4 square wave periods later than the waveform output by a first radio frequency head; the square wave output by the third radio frequency head is also 1/4 square wave periods later than the square wave output by the second radio frequency head, and the square wave output by the third radio frequency head is 1/2 square wave periods later than the square wave output by the first radio frequency head;

s5, maintaining the radio frequency output and the heating component in a heat preservation state during time t2-t4, wherein time t4-t2 is between 1 minute and 3 minutes;

s6, stopping radio frequency output at time T4, maintaining the heating component in a heat preservation state, enabling the detection temperature of a temperature sensor (133) on the surface of an operating head (13) to be reduced to T3 when the radio frequency is stopped at T5, enabling T3 to be T3-110% T0-120% T0, continuing to preserve heat for time T6, and enabling T6-T5 to be in 3-5 minutes;

s7, cooling the eyes through a cooling cover of an operating head (13) at a time T6-T7 to reduce the eye temperature to T4, wherein the T4 is set to be 50% of T0-70% of T0, and the temperature reduction rate (T3-T4)/(T7-T6) is controlled to be 0.5-1 ℃ per second;

s8, at the stage of time T7-T8, the temperature is continuously controlled to be T4 through a cooling plate, and the time T8-T7 is 2 minutes;

s9, in the stage of T8-T9, the eye temperature is adjusted back to the original body temperature T0 through the heating component.