Strong pulsed light therapeutic apparatus and energy output method

Abstract

The invention discloses an intense pulsed light therapeutic apparatus and an energy output method, and relates to the field of medical instruments, the therapeutic apparatus comprises a host and a handle, the handle comprises: a light emitting module for emitting light; the speed measuring module is used for sensing and calculating the transverse moving speed and the longitudinal moving speed of the handle; the host comprises a charging and discharging module which is used for enabling the light-emitting module to emit strong pulse light through charging and discharging; the switch module is used for sending an opening or closing signal to the control module; the control module is used for receiving set parameters and controlling the charging and discharging module to charge and discharge according to the set parameters; the control module is further used for calculating the moving distance of the handle in the moving direction according to the moving speed of the speed measuring module, and when the moving distance meets the preset condition of the light-emitting module in the moving direction and receives a starting signal of the switch module, the control module controls the charging and discharging module to discharge, so that the light-emitting module emits light with preset energy. The light energy output speed is adjusted according to the habit of an operator, and the light energy received in unit area is relatively uniform.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and specifically to an intense pulsed light therapy device and an energy output method. Background Art

[0002] Intense pulsed light therapy is a medical device that periodically emits strong light of multiple wavelengths to treat human skin diseases or improve facial skin conditions. Its basic working method is to set the pulse width and energy parameters through the operation interface, then use the foot switch as the trigger signal, and finally release the light energy through the xenon lamp on the handle. Conventional light energy output methods include pulse train output and repeated pulse output (i.e. fixed frequency output). In terms of the use of the handle, it is divided into stamp mode and sliding mode.

[0003] Stamping mode: When the foot switch is closed once, light energy is output once on the target area. One output contains multiple light pulses, such as Figure 1 The advantage is that the single output energy is large; the disadvantage is that the irradiation position needs to be judged by the naked eye before each light is emitted to avoid overlap with the area irradiated with light energy before, so the treatment speed is slow and it is not suitable for large-area skin treatment.

[0004] Sliding mode: The foot switch is in a continuously closed state, the treatment handle is continuously moved on the target area, and the light energy is output at a fixed frequency. The output on the target area contains only one pulse at a time, such as Figure 2 As shown in the figure. The sliding mode can achieve the purpose of quickly treating a large area of ​​skin by repeatedly sliding output in the target area, which can solve the problems of the stamping mode. However, the sliding mode still has the following defects:

[0005] 1. The operator needs to adapt to the light output frequency of the instrument and then adjust the speed of the moving handle. However, the light output frequency is high and the speed is far beyond the human reaction speed. It is impossible to accurately control the output of the specified light energy irradiation area in the specified area.

[0006] 2. Since the single output energy is low, the required treatment energy is judged by increasing the cumulative irradiation time and observing the patient's clinical response. Although the total light energy received by the target area meets the standard, the local distribution is uneven, and the light output frequency is fixed. The speed at which the operator moves the handle must change nonlinearly. Therefore, the light energy received per unit area may still be insufficient or excessive, resulting in ineffective areas or local burns due to repeated output, resulting in poor skin treatment effects. Summary of the invention

[0007] The present application provides an intense pulsed light therapy device and an energy output method, which can solve the technical problems existing in the prior art of being unable to effectively control the output of specified light energy in a specified area and the uneven local distribution of light energy.

[0008] In a first aspect, an embodiment of the present application provides an intense pulsed light therapy device, comprising a main unit and a handle, wherein the handle comprises:

[0009] A light emitting module, which is used to emit light;

[0010] A speed measurement module, which is used to sense and calculate the lateral and longitudinal movement speeds of the handle;

[0011] The host comprises:

[0012] A charging and discharging module, which is used to make the light-emitting module emit intense pulsed light through charging and discharging;

[0013] A switch module, which is used to send an on or off signal to the control module;

[0014] The control module is used to receive setting parameters and control the charging and discharging of the charging and discharging module according to the setting parameters; it is also used to calculate the moving distance of the handle in the moving direction according to the moving speed of the speed measuring module, and when the moving distance meets the preset conditions of the light-emitting module in the moving direction and receives the start signal of the switch module, it controls the charging and discharging module to discharge so that the light-emitting module emits light of preset energy.

[0015] In combination with the first aspect, in one implementation, the light emitting module includes:

[0016] A light emitting body, which is arranged in the handle and is used for emitting light;

[0017] A light-guiding crystal, which is arranged at the light-emitting window of the handle and is used to evenly guide the light emitted by the light-emitting body;

[0018] A cooling plate is installed on the light-guiding crystal and is used for dissipating heat for the light-guiding crystal.

[0019] In combination with the first aspect, in one embodiment, the preset condition of the light emitting module in the moving direction is S n =D n ×(1-N), where S n is the moving distance of the handle in the moving direction, D n is the size of the light-guiding crystal in the moving direction, and N is the overlapping density, that is, the percentage of the overlapping area in two adjacent light outputs of the light-guiding crystal to the single light output area.

[0020] In combination with the first aspect, in one embodiment, the handle further includes a skin sensing circuit, and the skin sensing circuit is used to determine whether the light-guiding crystal is in contact with the skin, and send a trigger signal to the speed measurement module when it is in contact with the skin.

[0021] In combination with the first aspect, in one embodiment, the skin sensing circuit includes a sensing capacitor at a sensing pad and a capacitive trigger chip. When the skin sensing circuit is close to the skin to a preset distance, the light-guiding crystal is deemed to be in contact with the skin, the sensing capacitance value at the sensing pad changes, and a trigger signal is sent to the speed measurement module through the capacitive trigger chip.

[0022] In combination with the first aspect, in one embodiment, the charging and discharging module includes a capacitor, a charging circuit and a discharging circuit. The charging circuit is used to start charging the capacitor after receiving the set parameters and the charging signal of the control module, and is also used to return a charging completion signal to the control module after charging is completed; the discharging circuit is used to control the discharge of the capacitor and the illumination of the light-emitting module after receiving the discharge signal of the control module.

[0023] In combination with the first aspect, in one implementation, the charging circuit is further used for:

[0024] When charging is abnormal, an overload alarm signal is returned to the control module;

[0025] When the charged voltage is higher than the target voltage, an overvoltage alarm signal is returned to the control module;

[0026] When the temperature of the charging circuit is higher than the preset charging circuit temperature, an over-temperature alarm signal is returned to the control module;

[0027] When the charging current is greater than the preset charging current, an overload alarm signal is returned to the control module.

[0028] In combination with the first aspect, in one embodiment, the speed measurement module includes an acceleration sensor and a microprocessor, wherein the acceleration sensor senses the acceleration changes of the handle in different directions in three-dimensional coordinates and transmits them to the microprocessor; the microprocessor periodically samples the data of the acceleration sensor and calculates the lateral and longitudinal movement speeds of the handle.

[0029] In a second aspect, an embodiment of the present application provides an energy output method of an intense pulsed light therapy device as described in any of the above embodiments, comprising the steps of:

[0030] S1, the control module receives the set parameters and controls the charging and discharging module to charge according to the set parameters; after the charging is completed and the start signal of the switch module is received, the charging and discharging module discharges, so that the light-emitting module emits a preset energy light;

[0031] S2, the speed measurement module senses and calculates the lateral movement speed and longitudinal movement speed of the handle, and transmits them to the control module, while the charge and discharge module charges;

[0032] S3, the control module calculates the moving distance of the handle in the moving direction, and when the moving distance meets the preset condition of the light emitting module in the moving direction and receives the start signal of the switch module, controls the charging and discharging module to discharge, so that the light emitting module emits light of preset energy, and the control module clears the moving distance;

[0033] Steps S2 and S3 are repeated until the control module receives a closing signal from the switch module, or the opening time of the switch module reaches a preset time threshold, and the charge-discharge module stops charging and discharging.

[0034] In conjunction with the second aspect, in one implementation, the above step S3 includes:

[0035] The control module calculates the lateral moving distance and the longitudinal moving distance according to the lateral moving speed and the longitudinal moving speed of the handle, respectively, and calculates the angle between the moving direction and the coordinate axis where the lateral moving distance is located by inverse trigonometric function to obtain the moving direction;

[0036] The light-emitting module includes a light-guiding crystal, and the control module controls the movement distance S of the handle according to the movement direction. n , and the size D of the light-guiding crystal in the moving direction n Calculate, when S is satisfied n =D n ×(1-N), the control module determines to trigger light emission, where N is the overlap density, that is, the percentage of the overlap area of ​​two adjacent light emission of the light guide crystal to the single light emission area. In combination with the first aspect, in one embodiment,

[0037] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0038] The lateral movement speed and longitudinal movement speed of the handle are calculated by the speed measurement module, and the control module calculates the movement distance of the handle in the movement direction accordingly. When the movement distance meets the preset conditions of the light-emitting module in the movement direction and receives the start signal of the switch module, the charge and discharge module discharges to make the light-emitting module emit light of preset energy.

[0039] The present application links the light emission and the movement speed of the handle. Under the condition of equal light emission distance, the slower the handle moves, the longer the light emission time interval is, and the faster the handle moves, the shorter the light emission time interval is. The operator does not need to adapt to the light emission frequency of the instrument and then adjust the speed of moving the handle. Instead, the speed of light energy output can be adjusted according to the operator's habit of using the handle. The light energy received per unit area is relatively uniform, avoiding the occurrence of ineffective areas or local burns due to repeated output.

[0040] In the moving direction, the percentage of the overlapping area of ​​two adjacent light outputs of the light-guiding crystal to the single light output area increases successively to 50%, 66%, 75%, and 80%. The specified light energy irradiation area can be output within the specified area without relying on the operator's clinical experience.

[0041] When the handle stops moving due to subjective or objective reasons, since the moving distance no longer changes, even if the switch module is in the on state, the charging and discharging module will not discharge, and the light-emitting module will stop emitting light, thereby avoiding thermal damage caused by improper operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of outputting light pulses in the stamping mode in the background technology;

[0043] Figure 2 It is a schematic diagram of outputting optical pulses in a conventional sliding mode in the background technology;

[0044] Figure 3 This is a schematic block diagram of an intense pulsed light therapy device according to an embodiment of the present application;

[0045] Figure 4 This is a schematic block diagram of an intense pulsed light therapy device according to another embodiment of the present application;

[0046] Figure 5 This is a schematic diagram of the cross-sectional structure of the handle in the embodiment of the present application;

[0047] Figure 6 This is a schematic diagram of the coordinate system where the handle is located in the embodiment of the present application;

[0048] Figure 7 This is a schematic diagram of the handle movement path in the embodiment of the present application;

[0049] Figure 8 This is a schematic diagram of uniformly overlapping irradiation areas in an embodiment of the present application;

[0050] Fig. 9 This is a schematic diagram of the relationship between the light pulse waveform, speed and distance in the embodiment of the present application;

[0051] Fig.10 This is a schematic diagram of the irradiation area when the overlap degree is 0 in the embodiment of the present application.

[0052] In the figure:

[0053] 1. Handle; 11. Light-emitting module; 111. Light-emitting body; 112. Light-guiding crystal; 113. Refrigeration sheet; 12. Speed ​​measurement module; 13. Skin sensing circuit; 14. Bluetooth module; 15. Light-emitting window;

[0054] 2. Host; 21. Charging and discharging module; 211. Charging circuit; 212. Capacitor; 213. Discharging circuit; 22. Switch module; 23. Control module; 24. Touch screen. DETAILED DESCRIPTION

[0055] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0056] First, some technical terms in the present application are explained to facilitate those skilled in the art to understand the present application.

[0057] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0058] In a first aspect, an embodiment of the present application provides an intense pulsed light therapy device.

[0059] In one embodiment, referring to Figure 3 , Figure 3 This is a schematic diagram of the first embodiment of the intense pulsed light therapy device of the present application. Figure 1 As shown, the intense pulsed light therapy device includes a main unit 2 and a handle 1. After the operator turns on the device on the main unit 2, he holds the handle 1 to operate it.

[0060] Specifically, the handle 1 includes a light emitting module 11 and a speed measuring module 12 . The light emitting module 11 is used for emitting light; the speed measuring module 12 is used for sensing and calculating the lateral moving speed and the longitudinal moving speed of the handle 1 .

[0061] The host 2 includes a control module 23 , and a charge-discharge module 21 and a switch module 22 respectively connected to the control module 23 .

[0062] The charging and discharging module 21 is used to enable the light emitting module 11 to emit strong pulse light through charging and discharging.

[0063] The switch module 22 is used to send an on or off signal to the control module 23 .

[0064] The control module 23 is used to receive the set parameters from the operator and control the charging and discharging of the charging and discharging module 21 according to the set parameters; it is also used to calculate the moving distance of the handle 1 in the moving direction according to the moving speed of the speed measuring module 12. When the moving distance meets the preset conditions of the light-emitting module 11 in the moving direction and receives the start signal of the switch module 22, the charging and discharging module 21 is controlled to discharge, so that the light-emitting module 11 emits light of preset energy.

[0065] In this embodiment, the lateral movement speed and longitudinal movement speed of the handle 1 are calculated by the speed measurement module 12, and the control module 23 calculates the movement distance of the handle 1 in the movement direction (actual movement direction) accordingly. When the movement distance meets the preset conditions of the light-emitting module 11 in the movement direction and receives the start signal, the charge and discharge module 21 discharges to make the light-emitting module 11 emit light of preset energy. By linking the light emission with the movement speed of the handle 1, the operator does not need to adapt to the light emission frequency of the instrument and then adjust the speed of moving the handle 1. The light energy received per unit area is relatively uniform, and the specified light energy irradiation area can be output within the specified area without relying on the operator's clinical experience. The technical problem that the output of the specified light energy in the specified area cannot be accurately controlled in the related art, and the local distribution of light energy is uneven.

[0066] Furthermore, in one embodiment, the speed measurement module 12 is usually implemented in the form of a circuit, including an acceleration sensor and a microprocessor. The acceleration sensor senses the acceleration changes of the handle 1 in different directions in the three-dimensional coordinates and transmits them to the microprocessor; the microprocessor periodically samples the data of the acceleration sensor and calculates the lateral movement speed and longitudinal movement speed of the handle 1. In this embodiment, the sampling period is 1ms. Figure 6 As shown, in this embodiment, the three-dimensional coordinates are set when the handle 1 is in use. When the handle 1 is in use, the speed measurement module 12 takes its current position as the origin of the three-dimensional coordinate system, the lateral movement direction of the handle 1 is the X-axis, the up and down movement direction is the Y-axis, and the longitudinal movement direction is the Z-axis.

[0067] The switch module 22 is implemented in the form of a foot switch. When the foot switch is closed, the switch module 22 sends an on signal to the control module 23 ; when the foot switch is disconnected, the switch module 22 sends a off signal to the control module 23 .

[0068] Further, in one embodiment, if Figure 5 As shown, the light emitting module 11 includes a light emitting body 111, a light guide crystal 112 and a cooling plate 113. The light emitting body 111 is arranged in the handle 1 for emitting light; preferably, the light emitting body 111 is a xenon lamp. The light guide crystal 112 is arranged in the handle 1, and its bottom surface is located at the light exit window 15 (such as Figure 6 As shown, Figure 5(not shown in the figure), the bottom surface of the light-guiding crystal 112 and the light-exiting window 15 are located in the same plane, and the side surface of the light-guiding crystal 112 is covered in the light-exiting window 15; the light-guiding crystal 112 is used to evenly guide the light emitted by the light-emitting body 111 out of the handle 1. The cooling plate 113 is installed on the light-guiding crystal 112, and is used to dissipate heat for the light-guiding crystal 112 to prevent the temperature of the light-guiding crystal 112 from being too high and scalding the skin during the light-emitting process. In this embodiment, the cooling plate 113 is attached to the side surface of the light-guiding crystal 112, the length of the light-guiding crystal 112 is greater than the length of the cooling plate 113, and the lower part of the side surface of the light-guiding crystal 112 is located outside the cooling plate 113.

[0069] Further, in one embodiment, if Figure 4 and Figure 5 As shown, a schematic diagram of a second embodiment of an intense pulsed light therapy device is provided. Based on the previous embodiment, the handle 1 further includes a skin sensing circuit 13, which is connected to the speed measuring module 12. The skin sensing circuit 13 is used to determine whether the light-guiding crystal 112 is in contact with the skin, and sends a trigger signal to the speed measuring module 12 when in contact with the skin. Since the size of the light-guiding crystal 112 is known, the position where the skin sensing circuit 13 is set is also known, so it can be inferred by calculation based on the distance between the skin sensing circuit 13 and the skin whether the light-guiding crystal 112 is in contact with the skin.

[0070] Further, the skin sensing circuit 13 may include a sensing capacitor and a capacitive trigger chip (not shown) at the sensing pad. When the skin sensing circuit 13 is close to the skin to a preset distance, it can be regarded as the light-guiding crystal 112 in contact with the skin. The sensing capacitance value at the sensing pad will change, and a trigger signal is sent to the speed measurement module 12 through the capacitive trigger chip. In this embodiment, the trigger signal is a high level. When the preset distance between the skin sensing circuit 13 and the skin is not reached, the capacitive trigger chip sends a low level signal to the speed measurement module 12, and the speed measurement module 12 does not process it at this time. The skin sensing circuit 13 can prevent light energy from leaking from the gap between the skin and the light-guiding crystal 112 during operation to affect the treatment effect, and can also prevent light leakage from having an adverse effect on the surrounding environment. Therefore, when calculating the moving direction and moving distance of the handle 1 above, the up and down movement of the handle 1 does not need to be considered, because when the preset distance between the skin sensing circuit 13 and the skin is not reached, the control module 23 stops the light-emitting module 11 from emitting light by controlling the charging and discharging module 21.

[0071] Furthermore, in one embodiment, the handle 1 also includes a Bluetooth module 14 , which is used to implement data transmission between the control module 23 and the speed measurement module 12 .

[0072] Furthermore, in one embodiment, the charge and discharge module 21 of the host 2 includes a charging circuit 211, a capacitor 212 and a discharging circuit 213. The charging circuit 211 is used to start charging the capacitor 212 after receiving the setting parameters and the charging signal of the control module 23, and is also used to return a charging completion signal to the control module 23 after charging is completed; the discharging circuit 213 is used to control the discharge of the capacitor 212 after receiving the discharge signal of the control module 23, so that the light-emitting body 111 of the light-emitting module 11 emits light.

[0073] Furthermore, in one embodiment, the host 2 further includes a touch screen 24 for realizing human-computer interaction. The host 2 receives setting parameters input by the operator through the touch screen 24 , and can also display data of the control module 23 through the touch screen 24 .

[0074] In the above embodiment, the setting parameters include: single light pulse energy E, maximum continuous working time T, and overlap density N, wherein the overlap density N is the percentage of the overlap area of ​​two adjacent light outputs of the light guide crystal to the single light output area.

[0075] The preset condition of the light emitting module 11 in the moving direction is: n =D n ×(1-N), where S n is the moving distance of handle 1 in the moving direction, D n is the size of the light-guiding crystal 112 in the moving direction, and N is the overlapping density.

[0076] In a second aspect, the present application also provides an energy output method based on the above-mentioned intense pulsed light therapy device, comprising the following steps:

[0077] S1, the control module 23 receives the set parameters, and controls the charging and discharging module 21 to charge according to the set parameters; after the charging is completed and the start signal of the switch module 22 is received, the charging and discharging module 21 is controlled to discharge, so that the light-emitting module 11 emits a preset energy light.

[0078] S2, the speed measurement module 12 senses and calculates the lateral movement speed and the longitudinal movement speed of the handle 1, and transmits them to the control module 23, while the charge and discharge module 21 charges.

[0079] S3, the control module 23 calculates the moving distance of the handle 1 in the moving direction according to the lateral moving speed and the longitudinal moving speed. When the moving distance meets the preset conditions of the light-emitting module 11 in the moving direction and receives the start signal of the switch module 22, the charging and discharging module 21 is controlled to discharge, so that the light-emitting module 11 emits light of preset energy, and the control module 23 resets the moving distance.

[0080] Steps S2 and S3 are repeated until the control module 23 receives a closing signal from the switch module 22 or the opening time T of the switch module 22 reaches a preset time threshold, and the charge-discharge module 21 stops charging.

[0081] In this embodiment, when the handle 1 stops moving due to subjective or objective reasons, the moving distance no longer changes, and even if the foot switch is closed, the light energy output is no longer triggered. This application can prevent thermal damage caused by improper operation. In addition, when the opening time T of the internal timing of the control module 23 has arrived, it means that the current round of light energy output has ended. If the switch module 22 is not turned on again for more than a preset time (such as 1 minute) in the ready state, the charging and discharging stops and the ready state is exited. Compared with the traditional stamping mode and sliding mode, which can only stop the light output by releasing the foot switch and manually exiting the ready state, this embodiment can play a protective role.

[0082] In the above method, the charging and discharging module 21 is charged through the charging circuit 211 and discharged through the discharging circuit 213. The charging circuit 211 starts to charge the capacitor 212 after receiving the charging enable signal and the target voltage signal from the control module 23, and returns a charging completion signal to the control module 23 after charging to the target voltage. The target voltage is calculated by the control module 23 according to the working parameters selected by the operator.

[0083] Furthermore, when charging is abnormal, such as capacitor 212 is short-circuited, the charging circuit 211 will return an overload alarm signal to the control module 23; when the charging voltage is higher than the target voltage, the charging circuit 211 will return an overvoltage alarm signal to the control module 23; when the temperature of the charging circuit 211 is higher than the preset charging circuit temperature, the charging circuit 211 will return an overtemperature alarm signal to the control module 23; when the charging current is greater than the preset charging current, the charging circuit 211 will return an overload alarm signal to the control module 23.

[0084] After the discharge pulse signal of the discharge circuit 213 control module 23 of the charge and discharge module 21 is received, the capacitor 212 starts to be controlled to discharge. Furthermore, when it is detected that the discharge pulse width is greater than the set pulse width, an overcurrent alarm signal is returned. The discharge energy is mainly determined by the discharge voltage U of the light source 111 (xenon lamp in this embodiment), the capacity C of the capacitor 212, and the light pulse width Wd of the xenon lamp. The light energy E and the voltage have the following relationship:

[0085] E=0.5×C×(U1 2 -U2 2 )×η, where U1 is the starting voltage for light emission, U2 is the ending voltage for light emission after Wd, and η is the photoelectric conversion efficiency.

[0086] like Figure 6As shown, when the handle 1 is in use, the speed measuring module 12 uses its location as the origin of the three-dimensional coordinate system, the lateral movement direction of the handle 1 is the X-axis, the up and down movement direction is the Y-axis, and the longitudinal movement direction is the Z-axis, so as to sense the changes in acceleration in different directions. Since the acceleration in the negative direction of the Y-axis is usually the acceleration of gravity g, the changes in the acceleration in the X-axis direction and the acceleration in the Z-axis direction are mainly processed during the working process. When the switch module 22 is closed, the speed measuring module 12 detects 10 continuous samples of positive or negative acceleration changes on the X-axis or Z-axis, and the microprocessor of the speed measuring module 12 starts to calculate the speed. Since the speed is the integral of the acceleration over time, that is, v(t) = ∫a(t)dt, where v is the speed and a is the acceleration. Therefore, the moving speed V after the first 10 samples of the X-axis x1 , can be converted into the formula:

[0087] V x1 =a1×t+a2×t+.....+a 10 ×t;

[0088] Average acceleration 平1 =V x1 / 10t, t is the sampling period. Similarly, after the second 10 samples, the 10 acceleration data are used to obtain the speed V x2 , the formula is: V x2 =V x1 +a 11 ×t+a 12 ×t+.....+a 20 ×t.

[0089] The control module 23 of the host 2 determines the moving speed V x1 Calculate the distance moved in one speed sampling cycle, because distance is the integral of speed over time s(t) = ∫v(t)dt, where s is the distance. Therefore, the distance moved in the first 10 samples is S x1 =V x1 ×10t / 2; Second return speed V x2 The moving distance after x2 for:

[0090] S x2 =S x1 +V x1 ×10t+a 平2 ×100t 2 / 2;

[0091] By analogy, the moving distance after the third return speed is S x3 =S x2 +V x2 ×10t+a 平3 ×100t 2 / 2.

[0092] like Figure 7 As shown, this is the moving path of handle 1. Similarly, the moving speed V of the Z axis can be calculated. zn and moving distance S zn , the control module 23 according to S xn and S zn , using the inverse trigonometric function θ = arctan(S zn / S xn ) calculates the angle θ between the moving direction and the X axis. In this direction, the moving distance S of the handle 1 n =S xn / cosθ, and then calculate the size D of the light guide crystal 112 in the moving direction according to the size D of the light guide crystal 112 in the X-axis direction n =D / cosθ, when the moving distance satisfies the light emitting module 11 in the moving direction S n =D n ×(1-N), the control module 23 determines to trigger the light emission.

[0093] Furthermore, in step S1 of the energy output method of the above-mentioned intense pulsed light therapy device, the operator can set parameters through the touch screen 24.

[0094] After the above-mentioned intense pulsed light therapy device is turned on, in the standby state, the control module 23 will periodically receive the speed data transmitted by the speed measurement module 12 through the Bluetooth module 14. When the intense pulsed light therapy device enters the ready state, the control module 23 controls the charging circuit 211 to charge the capacitor 212, and the touch screen 24 displays the charging state; when the capacitor 212 is charged to the rated voltage, the touch screen 24 displays that the charging is completed, and at the same time, after the skin sensing circuit 13 detects that the skin has contacted the light-guiding crystal 112, the control module 23 detects whether the opening signal of the switch module 22 is received. If so, the control module 23 sends a corresponding electrical signal to the discharge circuit 213, and then discharges the xenon lamp through the capacitor 212, releasing the first light pulse with a microsecond pulse width Wd, and at the same time, the control module 23 starts timing.

[0095] In step S2, the speed measuring module 12 senses and calculates the moving speed V of the speed data X axis. xn and the moving speed V of the Z axis zn and transmitted to the control module 23 via the Bluetooth module 14 .

[0096] In step S3, the control module 23 receives the V xn and V zn , respectively calculate the moving distance S of the X axis xn and the Z-axis moving distance S zn Using the inverse trigonometric function θ = arctan (S zn / Sxn ) calculate the angle θ between the moving direction of handle 1 and the X-axis, and the moving distance S in the direction of the angle θ n =S xn / cosθ, and then calculate the size D of the light guide crystal 112 in the moving direction according to the size D of the light guide crystal 112 in the X-axis direction n =D / cosθ. Once S is reached n =D n ×(1-N), the control module 23 controls the charge and discharge module 21 to discharge, so that the xenon lamp emits light of preset energy E, where N is the overlap density, that is, the percentage of the overlap area of ​​two adjacent light outputs of the light guide crystal 112 to the single light output area. Then, the control module 23 clears the moving distance S n , restart the calculation of the moving distance in the moving direction and wait for the next trigger. Repeat steps S2 and S3 to achieve the effect of uniform light energy output at equal distances.

[0097] like Figure 8 As shown, when the angle θ=0, the relationship between the moving distance S and the overlapping density N can be derived, S=D×(1-N), where D is the width of the light exit window 15 (also the size of the bottom surface of the light guide crystal 112 in the X-axis direction). Compared with the traditional sliding mode, when N=50%, 66%, 75%, 80%, the overlapping area of ​​the two adjacent light exits of the light guide crystal 112 increases successively, without relying on the clinical experience of the operator, the specified light energy irradiation area can be output within the specified area, avoiding the situation where the light energy received per unit area is still insufficient or excessive.

[0098] In the time interval between two adjacent light energy outputs, the charging circuit 211 will continue to charge the capacitor 212 to the rated voltage until the control module 23 detects the closing signal of the switch module 22, and the distance detection will also stop. When the handle 1 stops moving due to subjective or objective reasons, light energy will not be output to prevent thermal damage caused by improper operation. Alternatively, when the opening time T of the switch module 22 reaches the preset time threshold, the current round of light energy output ends, which plays a protective role; when the switch module 22 is not reopened for more than 1 minute, the charging and discharging stops and exits the ready state. If the switch module 22 is reopened within 1 minute, the next round of light energy output begins. The relationship between the light pulse waveform and the speed and distance during the output process is shown as follows. Fig. 9 shown.

[0099] like Fig. 9 As shown, it can be seen that under the condition of equal distance light emission, the slower the handle 1 moves, the longer the light emission time interval is, and the faster the handle 1 moves, the shorter the light emission time interval is. Therefore, the operator does not need to adjust the speed of moving the handle 1 to adapt to the light emission frequency of the instrument, but can adjust the speed of light energy output according to the operator's habit of using the handle 1.

[0100] In addition, the IPL therapy device in this application is also compatible with the stamping mode. When N=0, the light energy overlap area is 0, and the output mode is equivalent to a seamless and uniform stamping output, but the steps of using the naked eye to judge each light output position and then moving the handle to output light energy in the traditional mode are omitted. Therefore, the treatment speed is faster than the traditional stamping mode, greatly improving the treatment efficiency.

[0101] like Fig.10 As shown, taking D = 2cm as an example, the irradiation length L = 8cm, and the width of the area A, the stamp-type output requires pressing the handle on the skin, stepping on the foot switch, outputting light energy, and then picking up the handle and moving it 2cm. Repeating the above actions four times can complete the task, which takes at least 15-20 seconds. However, using the sliding mode operation in this application, you only need to step on the foot switch and then move the handle 1 horizontally 8cm, which takes only 1-2 seconds.

[0102] Since the output energy per unit area is controllable, the upper limit of the single light output energy can be set higher in this embodiment. Compared with the traditional sliding mode which requires repeated sliding to accumulate energy, the number of light outputs for treating the same area is less and the time is shorter.

[0103] It should be noted that the serial numbers of the above-mentioned embodiments of the present application are only for description and do not represent the advantages or disadvantages of the embodiments.

[0104] The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices. The terms "first", "second" and "third" are used to distinguish different objects, etc., and do not represent a sequence, nor do they limit "first", "second" and "third" to different types.

[0105] In the description of the embodiments of the present application, "exemplary", "for example" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary", "for example" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary", "for example" or "for example" is intended to present related concepts in a concrete way. In addition, in the description of the embodiments of the present application, "plurality" refers to two or more than two.

[0106] In some processes described in the embodiments of the present application, multiple operations or steps that appear in a specific order are included, but it should be understood that these operations or steps may not be executed in the order in which they appear in the embodiments of the present application or in parallel, and the sequence number of the operation is only used to distinguish the different operations, and the sequence number itself does not represent any execution order. In addition, these processes may include more or fewer operations, and these operations or steps may be executed in sequence or in parallel, and these operations or steps may be combined.

[0107] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, disk, CD) as described above, and includes a number of instructions for a terminal device to execute the methods described in each embodiment of the present application.

[0108] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An intense pulsed light therapy device, comprising a main unit (2) and a handle (1), characterized in that: The handle (1) comprises: A light emitting module (11) for emitting light; A speed measurement module (12), which is used to sense and calculate the lateral movement speed and longitudinal movement speed of the handle (1); The host comprises: A charging and discharging module (21), used for causing the light-emitting module (11) to emit intense pulsed light through charging and discharging; A switch module (22) for sending an on or off signal to a control module (23); A control module (23) is used to receive setting parameters and control the charging and discharging of the charging and discharging module according to the setting parameters; and is also used to calculate the moving distance of the handle (1) in the moving direction according to the moving speed of the speed measuring module (12); when the moving distance meets the preset conditions of the light emitting module (11) in the moving direction and after receiving the start signal of the switch module (22), the charging and discharging module is controlled to discharge, so that the light emitting module (11) emits light of preset energy.

2. The intense pulsed light therapy device according to claim 1, characterized in that: The light emitting module (11) comprises: A light emitting body (111), which is arranged in the handle (1) and is used for emitting light; A light-guiding crystal (112), which is arranged at the light-emitting window (15) of the handle (1) and is used to evenly guide the light emitted by the light-emitting body (111); A cooling plate (113) is mounted on the light-guiding crystal (112) and is used to dissipate heat for the light-guiding crystal (112).

3. The intense pulsed light therapy device according to claim 2, characterized in that: The preset condition of the light emitting module (11) in the moving direction is S n =D n ×(1-N), where S n is the moving distance of the handle (1) in the moving direction, D n is the size of the light-guiding crystal (112) in the moving direction, and N is the overlap density, that is, the percentage of the overlap area in two adjacent light outputs of the light-guiding crystal (112) to the single light output area.

4. The intense pulsed light therapy apparatus as claimed in claim 2, characterized in that: The handle (1) further comprises a skin sensing circuit (13), wherein the skin sensing circuit (13) is used to determine whether the light-guiding crystal (112) is in contact with the skin, and to send a trigger signal to the speed measurement module (12) when in contact with the skin.

5. The intense pulsed light therapy device according to claim 4, characterized in that: The skin sensing circuit (13) comprises a sensing capacitor at a sensing pad and a capacitive trigger chip. When the skin sensing circuit (13) is close to the skin to a preset distance, it is considered that the light-guiding crystal (112) is in contact with the skin, the sensing capacitance value at the sensing pad changes, and a trigger signal is sent to the speed measurement module (12) via the capacitive trigger chip.

6. The intense pulsed light therapy device according to claim 1, characterized in that: The charging and discharging module comprises a capacitor (212), a charging circuit (211) and a discharging circuit (213); the charging circuit (211) is used to start charging the capacitor (212) after receiving a setting parameter and a charging signal from the control module (23), and is also used to return a charging completion signal to the control module (23) after charging is completed; the discharging circuit (213) is used to control the capacitor (212) to discharge and the light-emitting module (11) to emit light after receiving a discharge signal from the control module (23).

7. The intense pulsed light therapy device according to claim 6, characterized in that: The charging circuit (211) is also used for: When charging is abnormal, an overload alarm signal is returned to the control module (23); When the charged voltage is higher than the target voltage, an overvoltage alarm signal is returned to the control module (23); When the temperature of the charging circuit (211) is higher than a preset charging circuit temperature, an over-temperature alarm signal is returned to the control module (23); When the charging current is greater than the preset charging current, an overload alarm signal is returned to the control module (23).

8. The intense pulsed light therapy device according to claim 1, characterized in that: The speed measurement module (12) comprises an acceleration sensor and a microprocessor, wherein the acceleration sensor senses the acceleration changes of the handle (1) in different directions in three-dimensional coordinates and transmits the changes to the microprocessor; the microprocessor periodically samples the data of the acceleration sensor and calculates the lateral movement speed and the longitudinal movement speed of the handle (1).

9. The energy output method of the intense pulsed light therapy apparatus according to any one of claims 1 to 8, characterized in that: Includes steps: S1, the control module (23) receives the set parameters and controls the charging and discharging module to charge according to the set parameters; after the charging is completed and the start signal of the switch module (22) is received, the charging and discharging module discharges, so that the light-emitting module (11) emits preset energy light; S2, the speed measurement module (12) senses and calculates the lateral movement speed and the longitudinal movement speed of the handle (1), and transmits them to the control module (23), while the charging and discharging module charges; S3, the control module (23) calculates the moving distance of the handle (1) in the moving direction, and when the moving distance satisfies the preset condition of the light-emitting module (11) in the moving direction and receives the start signal of the switch module (22), controls the charging and discharging module to discharge, so that the light-emitting module (11) emits light of preset energy, and the control module (23) resets the moving distance; Steps S2 and S3 are repeated until the control module (23) receives a closing signal from the switch module (22), or the opening time of the switch module (22) reaches a preset time threshold, and the charge-discharge module stops charging and discharging.

10. The energy output method of the intense pulsed light therapy apparatus as claimed in claim 9, characterized in that: The above step S3 includes: The control module (23) calculates the lateral movement distance and the longitudinal movement distance according to the lateral movement speed and the longitudinal movement speed of the handle (1), respectively, and calculates the angle between the movement direction and the coordinate axis where the lateral movement distance is located by inverse trigonometric function to obtain the movement direction; The light-emitting module (11) comprises a light-guiding crystal (112), and the control module (23) controls the movement of the handle (1) according to the movement distance S in the movement direction. n , and the dimension D of the light-guiding crystal (112) in the moving direction n Calculate, when S is satisfied n =D n ×(1-N), the control module (23) determines to trigger light emission, wherein N is the overlap density, that is, the percentage of the overlap area in two adjacent light emission of the light guide crystal (112) to the single light emission area.

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