Dot matrix laser hand tool and 1470nm semiconductor laser therapeutic instrument

Abstract

The application relates to a dot matrix laser hand tool and a 1470nm semiconductor laser therapeutic instrument, wherein the dot matrix laser hand tool comprises a cover body used for covering the skin surface during laser treatment of the skin surface; an X galvanometer mirror arranged in the cover body and used for laser scanning in the X axis; a Y galvanometer mirror arranged in the cover body and used for laser scanning in the Y axis; an X axis motor assembly arranged in the cover body and used for driving the work of the X galvanometer mirror; a Y axis motor assembly arranged in the cover body and used for driving the work of the Y galvanometer mirror; a smoke exhaust pipe arranged in the cover body, one end of the smoke exhaust pipe is arranged at the bottom of the cover body, and the other end of the smoke exhaust pipe is connected to a negative pressure device; and a cooling pipe arranged in the cover body, the end of the cooling pipe is connected to a cooling device and is used for absorbing the generated heat during the laser treatment of the skin. The dot matrix laser hand tool can greatly improve the laser treatment effect and guarantee the safety of the treatment process.

Description

Technical Field

[0001] This invention relates to the field of laser technology. More specifically, this invention relates to a fractional laser handpiece and a 1470nm semiconductor laser therapy device. Background Technology

[0002] When spots, pimples, wrinkles, or other blemishes appear on the skin's surface, laser therapy devices are typically used in conjunction with fractional laser handpieces to treat the affected areas.

[0003] Because 1470nm lasers can be efficiently absorbed by water molecules in tissues, instantly releasing heat energy and producing a focal photothermal effect, fractional lasers using fractional laser scanning technology can create hundreds of microcolumnar coagulants on the skin surface, triggering a rapid healing response and achieving non-ablative skin surface repair purposes such as removing freckles, scars, wrinkles, and acne pits; at the same time, laser treatment can also stimulate collagen regeneration in the skin, achieving skin rejuvenation and tightening effects.

[0004] However, traditional fractional laser handpieces lack good laser directionality, resulting in chaotic and scattered treatment light that suffers significant reflection loss after passing through the skin. During use, a skin coupling agent must be applied to the affected area, and the handpiece must be placed tightly against the agent to reduce scattering loss as the laser beam enters the skin and ensure even distribution of the treatment light. However, this structure limits efficient cooling of the skin surface, forcing the use of less efficient and less precise contact cooling, which significantly restricts the light flux during fractional laser treatment, impacting clinical efficacy. Excessive laser power or energy can cause skin pigmentation and thermal damage, while insufficient localized photothermal effects lead to ineffective or poor treatment results. Furthermore, uncontrollable operator technique can result in wasted energy and shallow treatment depth, affecting cosmetic outcomes. Therefore, existing fractional laser handpieces suffer from poor treatment efficacy. Summary of the Invention

[0005] To address the technical problem of poor treatment effects in existing fractional laser handpieces, this invention provides solutions in the following aspects.

[0006] In a first aspect, the present invention provides a fractional laser handpiece suitable for a 1470nm semiconductor laser therapy device, comprising: a cover for covering the skin surface during laser treatment; an X-ray galvanometer disposed inside the cover for performing laser scanning on the X-axis under the drive of an X-axis motor assembly; a Y-ray galvanometer disposed inside the cover for performing laser scanning on the Y-axis under the drive of a Y-axis motor assembly; an X-axis motor assembly disposed inside the cover for driving the operation of the X-ray galvanometer; a Y-axis motor assembly disposed inside the cover for driving the operation of the Y-ray galvanometer; a smoke exhaust pipe disposed inside the cover, one end of which is located at the bottom of the cover and the other end is connected to a negative pressure device to extract smoke generated inside the cover; and a cooling pipe disposed inside the cover, the end of which is connected to a cooling device for absorbing heat generated during laser treatment of the skin.

[0007] The beneficial effects are as follows: The fractional laser handpiece of this invention avoids energy loss during laser treatment of the skin surface by setting up a cover; by setting up X-ray and Y-ray mirrors, the laser can have good directionality; the fractional laser handpiece of this invention no longer uses contact cooling, but instead uses cooling pipes to cool the skin surface, preventing excessive temperature burns and avoiding treatment side effects such as abnormal epidermal pigmentation and epidermal thermal damage; since the laser beam produces smoke when acting on the skin, this smoke not only affects the surgical field of vision but also contains harmful substances that may pose health hazards to medical staff and patients. By setting up a smoke exhaust pipe, the smoke generated during operation can be absorbed in time and then discharged through the pipe, ensuring air quality in the surgical area and the smooth progress of the surgery; therefore, when performing laser treatment on the skin surface, using the fractional laser handpiece of this invention can greatly improve the effect of laser treatment and ensure the safety of the treatment process.

[0008] Preferably, it further includes: a plurality of tracking rollers disposed at the bottom of the cover for moving the cover during laser treatment of the skin surface.

[0009] Its beneficial effects are: since the affected area on the patient's skin may be large, by setting a tracking roller, the fractional laser handpiece can be moved conveniently to adjust the position of the laser on the patient's skin.

[0010] Preferably, it further includes: a speed sensor disposed inside the cover and connected to the control system module of the laser therapy device, for monitoring the moving speed of the cover.

[0011] Its beneficial effects are as follows: Since the fractional laser handpiece needs to be moved at a constant speed when treating the skin surface, monitoring the movement speed of the cover using a speed sensor can prevent the laser handpiece from moving too fast, thus ensuring the treatment effect. Furthermore, by rolling the fractional laser handpiece along the long and wide axes of the treatment area during treatment, and combining this with the real-time speed measured by the speed sensor, the length and width of the treatment area can be calculated.

[0012] In a second aspect, the present invention provides a 1470nm semiconductor laser therapy device, comprising: a laser module for generating laser light, a laser output module for beam shaping and coupling output of the laser light generated by the laser module, and a control system module for adjusting the operating parameters of the laser module. The laser output module includes a collimating lens for beam shaping of the laser light generated by the laser module, a laser output interface for coupling output of the laser beam, a dot matrix laser interface for connecting a dot matrix handpiece for dot matrix mode laser output, and the dot matrix laser handpiece of the present invention. The beam output end of the collimating lens is connected to the laser output interface and the dot matrix laser interface, respectively. The laser output interface is used to connect to the fiber optic connection line of the dot matrix laser handpiece, and the dot matrix laser interface is used to connect to the handle connection line of the dot matrix laser handpiece.

[0013] Its beneficial effects are as follows: The fractional laser handpiece of the 1470nm semiconductor laser therapy instrument of the present invention avoids energy loss when performing laser treatment on the skin surface by setting a cover; since the laser beam acts on the skin and produces smoke, this smoke not only affects the surgical field of vision, but also contains harmful substances that may cause health hazards to medical staff and patients. By setting a smoke exhaust pipe, the smoke generated during the operation can be absorbed in time and then discharged through the pipe, ensuring the air quality of the surgical area and the smooth progress of the operation; by setting a cooling pipe, the skin surface can be cooled down to prevent the skin from being burned by excessive temperature; therefore, when performing laser treatment on the skin surface, the use of the 1470nm semiconductor laser therapy instrument of the present invention can greatly improve the effect of laser treatment and ensure the safety of the treatment process.

[0014] Preferably, the laser output module further includes: a direct-fiber laser, a ring-fiber laser, and a scattering-type photobiological probe. The laser output interface is also used to connect to the fiber optic connectors of the direct-fiber laser, the ring-fiber laser, and the scattering-type photobiological probe, respectively.

[0015] Its beneficial effects are as follows: The laser output module of this invention, in addition to the set fractional laser handpiece, also includes a direct-fiber laser, a ring-fiber laser, and a scattering photobiological probe. Therefore, it can achieve the following using a single 1470nm semiconductor laser therapy instrument: it can select to output a point-fiber mode laser through the direct-fiber laser for controlled tissue vaporization and ablation treatment; it can select to output a 360-degree ring-fiber laser for safe intracavitary treatment; it can also select to output a fractional mode laser through the fractional treatment handpiece for precise light scanning of skin surface repair treatment; and further, it can select to output a scattering mode laser through the photobiological therapy probe for efficient photobiological stimulation and modulation treatment of wounds, ulcers, and abrasions. Thus, a single 1470nm semiconductor laser therapy instrument realizes the multi-mode laser therapy required for clinical medicine.

[0016] Preferably, it further includes: an automatic fiber optic cable pulling device for adjusting and positioning the fiber optic cable of the 1470nm semiconductor laser therapy instrument, the automatic fiber optic cable pulling device comprising: a fiber optic box for accommodating the fiber optic cable; a first hole and a second hole are provided on its side, wherein the first hole is for one end of the fiber optic cable to pass through to connect to the laser output interface of the 1470nm semiconductor laser therapy instrument, and the second hole is for the other end of the fiber optic cable to pass through to reach the lesion; a fiber optic reel, disposed inside the fiber optic box for storing the fiber optic cable; a drive motor for driving a shaft connected to the fiber optic reel to control the rotation of the fiber optic reel thereby retracting and extending the fiber optic cable; and a motor control device connected to the drive motor for controlling the start, stop, direction, and speed of the drive motor.

[0017] Its beneficial effects are as follows: The automatic fiber optic pulling device of the present invention achieves uniform speed retraction or release of laser fiber through the cooperation of drive motor and fiber optic disk, thereby reducing the error of manual pulling of laser fiber by medical staff, reducing the surgical operation pressure of medical staff, and preventing the laser fiber from moving at an uneven and uncontrollable speed; In addition, the automatic fiber optic pulling device of the present invention adopts a split structure, which is convenient, quick and easy to carry.

[0018] Preferably, the automatic fiber optic cable pulling device further includes a fixing device disposed at the second hole for fixing the fiber optic cable. The fixing device includes a pressure groove for the fiber optic cable to pass through and a pressure plate for applying pressure to the pressure groove. When the first end of the pressure plate is pressed, the second end will be raised. When the second end is not pressed, the second end will be pressed at the pressure groove.

[0019] Preferably, the control system module includes: a temperature control module for controlling the operating temperature of the laser module, a main control board for issuing control commands to the temperature control module and the laser module, an operation screen for human-machine interaction, and a power supply module for supplying power to the temperature control module, the main control board and the operation screen, wherein the main control board is connected to the temperature control module, the laser module and the operation screen respectively.

[0020] Preferably, the temperature control module includes a cooling fan, a heat pipe, and a thermoelectric cooler disposed inside the laser module. The heat pipe is connected to a heating device, and a solenoid valve for controlling the on / off state of the heat pipe is disposed inside the heat pipe. The controlled end of the cooling fan, the controlled end of the thermoelectric cooler, and the controlled end of the solenoid valve are all connected to the main control board.

[0021] Preferably, the main control board is provided with a central processing unit and a communication interface. The central processing unit is used for data processing, and the communication interface is used for outputting and receiving control signals. Attached Figure Description

[0022] The above and other objects, features, and advantages of exemplary embodiments of the present invention will become readily apparent upon reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the invention are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0023] Figure 1 This is the first part of a schematic diagram of the structure of a dot matrix laser handpiece according to an embodiment of the present invention;

[0024] Figure 2 This is the second part of a schematic diagram of the structure of a dot matrix laser handpiece according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of a 1470nm semiconductor laser therapy device according to an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the automatic fiber optic cable pulling device according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the control system module according to an embodiment of the present invention.

[0028] Explanation of reference numerals in the attached diagram: 1 is the fiber optic connection interface; 2 is the handle connection interface; 3 is the X-ray galvanometer; 4 is the X-axis motor assembly; 5 is the Y-ray galvanometer; 6 is the Y-axis motor assembly; 7 is the laser; 8 is the speed status light; 9 is the speed sensor; 10 is the exhaust pipe; 11 is the cooling pipe; 12 is the tracking roller; 13 is the housing; 14 is the fiber optic disc; 15 is the drive motor; 16 is the power switch; 17 is the speed control knob; 18 is the fiber optic box; 19 is the fixing device; 20 is the laser output interface of the 1470nm semiconductor laser therapy instrument; 21 is the lesion site. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0031] Example of a fractional laser handpiece suitable for 1470nm semiconductor laser therapy:

[0032] like Figure 1 and Figure 2 As shown, the fractional laser handpiece of the present invention, applicable to a 1470nm semiconductor laser therapy device, includes: a cover 13 for covering the skin surface during laser treatment; an X-ray galvanometer 3 disposed inside the cover for laser scanning along the X-axis under the drive of an X-axis motor assembly 4; a Y-ray galvanometer 5 disposed inside the cover for laser scanning along the Y-axis under the drive of a Y-axis motor assembly 6; an X-axis motor assembly 4 disposed inside the cover for driving the X-ray galvanometer; a Y-axis motor assembly 6 disposed inside the cover for driving the Y-ray galvanometer; a smoke exhaust pipe 10 disposed inside the cover, one end of which is located at the bottom of the cover, and the other end is connected to a negative pressure device to extract smoke generated inside the cover; and a cooling pipe 11 disposed inside the cover, the end of which is connected to a cooling device for absorbing heat generated during laser treatment of the skin. A handle connection cable interface 2 for a handle connection cable to pass through and an optical fiber connection cable interface 1 for an optical fiber connection cable to pass through are provided on the top of the cover.

[0033] The cooling device in this embodiment includes a cooling unit and a refrigerant. The cooling pipe 11 consists of two independent pipes: a high-pressure side pipe and a low-pressure side pipe. The working principle of the cooling pipe is based on the circulating flow and phase change process of the refrigerant. The refrigerant flows between these two pipes, undergoing a phase change and absorbing heat.

[0034] In this embodiment, the X-axis is parallel to the horizontal plane, and the Y-axis is perpendicular to the horizontal plane. The cover is made of transparent material to allow medical staff to observe the inside of the cover.

[0035] In this embodiment, the fractional laser handpiece first projects the laser beam 7 onto the X-ray mirror handle. The X-ray mirror refracts the laser horizontally onto the Y-ray mirror, which then refracts the laser vertically downwards onto the patient's skin. The main control software of the laser therapy device controls the X-axis motor assembly to drive the X-ray mirror to scan along the X-axis, and the Y-axis motor assembly to drive the Y-axis mirror to scan along the Y-axis, thereby deflecting the laser beam and allowing the laser focal point with a certain power density to move as required, thus outputting a vector graphic laser beam. Before treating the patient's skin, the negative pressure device is kept running, and the generated smoke is discharged from the hood through the exhaust pipe. Before treating the patient's skin, the cooling device is kept running to cool the inside of the hood, preventing the patient's skin surface temperature from becoming too high. The ratio of cold air to smoke intensity needs to be adjusted to achieve a suitable effect; if the cold air is too strong, the smoke extraction effect will be affected, and vice versa.

[0036] Traditional fractional laser handpieces lack good laser directionality, resulting in chaotic and scattered treatment light that suffers significant reflection loss after passing through the skin. During use, a skin coupling agent must be applied to the affected area, and the handpiece must be placed tightly against the agent to reduce scattering loss upon entry into the skin and ensure even light distribution. However, this structure limits the application of efficient skin surface cooling technology. Currently, only contact cooling, which has lower cooling efficiency and is difficult to operate precisely, is used, significantly limiting the light flux and affecting clinical treatment outcomes. It can also easily cause side effects such as skin pigmentation and thermal damage. Furthermore, uncontrollable operator technique can lead to wasted fractional energy and shallow treatment depth, impacting cosmetic results.

[0037] The fractional laser handpiece of this embodiment avoids energy loss during laser treatment of the skin surface by setting up a cover; by setting up X-ray and Y-ray mirrors, the laser can have good directionality; the fractional laser handpiece of this invention no longer uses contact cooling, but instead uses cooling pipes to cool the skin surface, preventing the skin from being burned by excessive temperature and avoiding treatment side effects such as epidermal pigmentation abnormalities and epidermal thermal damage; since the laser beam acting on the skin will produce smoke, this smoke not only affects the surgical field of vision, but also contains harmful substances that may cause health hazards to medical staff and patients, by setting up a smoke exhaust pipe, the smoke generated during the operation can be absorbed in time and then discharged through the pipe, ensuring the air quality in the surgical area and the smooth progress of the operation; therefore, when performing 1470nm semiconductor laser treatment on the skin surface, using the fractional laser handpiece of this invention can greatly improve the laser treatment effect and ensure the safety of the treatment process.

[0038] In one embodiment, it further includes a plurality of tracking rollers 12 disposed at the bottom of the cover for moving the cover during laser treatment of the skin surface.

[0039] The tracking roller can be a swivel wheel.

[0040] Since the affected area on a patient's skin may be large, a tracking roller can be installed to easily move the fractional laser handpiece and adjust the position of the laser on the patient's skin.

[0041] In one embodiment, it further includes: a speed sensor 9 disposed inside the cover and connected to the control system module of the laser therapy device, for monitoring the moving speed of the cover.

[0042] The speed sensor is connected to the control system module of the laser therapy device.

[0043] Since the fractional laser handpiece needs to be moved at a constant speed when treating the skin surface, a speed sensor is used to monitor the movement speed of the cover, preventing the laser handpiece from moving too fast and ensuring the treatment effect. Furthermore, by rolling the fractional laser handpiece along the long and wide axes of the treatment area during treatment, and combining this with the real-time speed measurement by the speed sensor, the length and width of the treatment area can be calculated.

[0044] When using the handpiece measurement function, press the foot switch on the laser therapy device and ensure that the roller of the treatment head remains in continuous contact with the skin to be measured. Roll the handpiece roller continuously in one direction along one of the arrows in the area, maintaining contact to measure the length. Then press the width option to start measuring the width, and repeat this procedure. After entering the length and width, the total area will be calculated and displayed on the operation interface. Click save. Repeat this process until all areas have been measured. To clear the data and remeasure, press the foot switch and repeat the measurement again. Push the handpiece roller until complete coverage of the treatment area is achieved. Energy will accumulate, and the system will alert the user with an audible message that the preset energy has been reached. The coverage (%) bar will gradually fill completely, displaying the percentage of the target coverage (%) achieved.

[0045] In one embodiment, it further includes: a speed status light 8 disposed inside the cover, the controlled end of the speed status light being connected to the control system module of the laser therapy device, for receiving voltage signals emitted by the sensor and displaying the status.

[0046] When the movement speed of the laser mask is within the preset speed range, the control system module of the laser therapy device controls the speed status light to light up. When the movement speed of the laser mask exceeds the preset speed range, the control system module of the laser therapy device controls the speed status light to turn off. The movement speed of the laser mask determines the movement speed of the fractional laser spots on the skin surface. By setting the speed status light, it is possible to prevent the laser spots from moving too fast or too slow on the skin surface during laser treatment.

[0047] Example of a 1470nm semiconductor laser therapy device:

[0048] like Figure 3 As shown, the present invention also provides a 1470nm semiconductor laser therapy device, comprising: a laser module for generating laser light, a laser output module for beam shaping and coupling output of the laser light generated by the laser module, and a control system module for adjusting the operating parameters of the laser module. The laser output module includes a collimating lens for beam shaping of the laser light generated by the laser module, a laser output interface for coupling output of the laser beam, a dot matrix laser interface for connecting a dot matrix handpiece for dot matrix mode laser output, and the dot matrix laser handpiece described in the above embodiments. The beam output end of the collimating lens is connected to the laser output interface and the dot matrix laser interface, respectively. The laser output interface is used to connect to the fiber optic connection line of the dot matrix laser handpiece, and the dot matrix laser interface is used to connect to the handle connection line of the dot matrix laser handpiece.

[0049] Semiconductor laser therapy devices with a wavelength of 1470nm are widely used in clinical medical treatment of various diseases due to their advantages such as simple structure, low power consumption, long lifespan, high reliability, small size, light weight, and portability. The 1470nm infrared laser light it generates can be selectively and efficiently absorbed by water molecules in human tissue, causing the water to heat and expand until cells burst, resulting in high-precision cutting, coagulation, vaporization, hemostasis, and other therapeutic effects. It has advantages such as high tissue absorption rate, shallow penetration depth, and minimal thermal damage. In tissue resection surgery, it allows for narrow incisions, fast speed, neat cut surfaces, controllable depth, and minimal thermal damage to surrounding tissues. In intracavitary ablation surgery, it can effectively control the area of ​​tissue necrosis, avoiding damage to normal tissue. In skin surface repair treatment, it does not ablate the skin surface and can create hundreds of micro-columnar coagulated substances, triggering a rapid healing response. Therefore, it is highly suitable for treating small tissues such as skin, blood vessels, nerves, and the gastrointestinal tract, achieving close healing and rapid healing, superior to other wavelength lasers, making it a very important medical laser source.

[0050] The fractional laser handpiece of the 1470nm semiconductor laser therapy instrument in this embodiment avoids energy loss during laser treatment of the skin surface by incorporating a cover. Since the laser beam generates smoke when acting on the skin, this smoke not only affects the surgical field of vision but also contains harmful substances that may pose health risks to medical staff and patients. By incorporating a smoke exhaust pipe, the generated smoke can be absorbed in a timely manner and then discharged through the pipe, ensuring air quality in the surgical area and the smooth progress of the surgery. Furthermore, by incorporating a cooling pipe, the skin surface can be cooled to prevent burns from excessive heat. Therefore, when performing laser treatment on the skin surface, using the 1470nm semiconductor laser therapy instrument of this invention can greatly improve the effectiveness of laser treatment and ensure the safety of the treatment process.

[0051] In one embodiment, the laser output module further includes: a direct-fiber laser, a ring-fiber laser, and a scattering-type photobiological probe. The laser output interface is also used to connect to the fiber optic connectors of the direct-fiber laser, the ring-fiber laser, and the scattering-type photobiological probe, respectively.

[0052] The ring-shaped laser fiber outputs a 360-degree annular spot, radially and uniformly focused on the vessel wall, distributing energy evenly along the vessel wall and using lower energy density. This significantly reduces the perforation rate, eliminates thermal damage and vessel wall carbonization, and prevents complications such as bruising and edema, thus eliminating intraoperative and postoperative pain. The conical tip provides better advanceability, eliminating the need for super-slippery guidewires and catheters. The fiber optic cannula has size markings to facilitate physician control of the retraction speed for more accurate dosage control. This addresses the problems of conventional bare fiber direct contact with the vessel wall, which easily leads to perforation and carbonization, uncontrollable energy density (resulting in incomplete vessel closure if the laser energy is too low, and perforation, eschar formation, and intense pain if the energy is too high), causing excessive pain.

[0053] Currently used 1470nm semiconductor laser therapy devices in clinical medicine generally suffer from weak laser control capabilities and a single output laser mode, failing to control the output of multiple modes such as direct, circumferential, scattered, and fractional lasers. This results in the inability to selectively output direct, 360-degree circumferential, fractional, and scattered laser modes using the same 1470nm semiconductor laser therapy device. In this embodiment, the laser output module, in addition to the fractional laser handpiece, is equipped with a direct-fiber laser, a ring-fiber laser, and a scattering photobiological probe. Therefore, a single 1470nm semiconductor laser therapy device can select to output a point-fiber mode laser through the direct-fiber laser for controlled tissue vaporization and ablation treatment; select to output a 360-degree ring-fiber laser for safe intracavitary treatment; select to output a fractional mode laser through the fractional treatment handpiece for precise light scanning of skin surface repair treatment; and further select to output a scattering mode laser through the photobiological therapy probe for efficient photobiological stimulation and modulation treatment of wounds, ulcers, and lesions. Thus, a single 1470nm semiconductor laser therapy device achieves the multi-mode laser therapy required for clinical medical use.

[0054] like Figure 4 As shown, in one embodiment, it further includes: an automatic fiber optic cable pulling device for adjusting and positioning the fiber optic cable of the 1470nm semiconductor laser therapy instrument. The automatic fiber optic cable pulling device includes: a fiber optic box 18 for accommodating the fiber optic cable; a first hole and a second hole are provided on its side, wherein the first hole is for one end of the fiber optic cable to pass through and connect to the laser output interface 20 of the 1470nm semiconductor laser therapy instrument, and the second hole is for the other end of the fiber optic cable to pass through and reach the lesion 21; a fiber optic reel 14, disposed inside the fiber optic box, for storing the fiber optic cable; a drive motor 15, driving a shaft connected to the fiber optic reel, for controlling the rotation of the fiber optic reel to retract and extend the fiber optic cable; and a motor control device connected to the drive motor, for controlling the start, stop, direction, and speed of the drive motor.

[0055] In this embodiment, the working circuit of the motor control device includes a power switch and a speed control knob. Both the power switch 16 and the speed control knob 17 are located on the outer surface of the fiber optic box 18.

[0056] The drive motor shaft can be connected to the optical fiber disk shaft via a coupling, thereby driving the optical fiber disk to rotate.

[0057] When using the automatic fiber optic cable pulling device of this embodiment, the rotation of the fiber optic disc is first controlled by the drive motor to wind the fiber optic cable onto the fiber optic disc. During laser treatment, the speed adjustment knob is adjusted to set the pulling speed. The power switch on the fiber optic housing is pressed, and the motor device rollers start working, driving the fiber optic disc to complete the uniform fiber winding work. During the process, the speed adjustment knob can be turned according to the speed of fiber winding and unwinding to make the fiber optic disc reach a suitable speed.

[0058] The automatic fiber optic pulling device of this embodiment achieves uniform speed retraction or release of the laser fiber through the cooperation of the drive motor and the fiber optic disk, thereby reducing the error of manual pulling of the laser fiber by medical staff, reducing the surgical operation pressure of medical staff, and preventing the laser fiber from moving at an uneven and uncontrollable speed. In addition, the automatic fiber optic pulling device of this embodiment adopts a split structure, which is convenient, quick and easy to carry when using.

[0059] In one embodiment, the automatic fiber optic cable pulling device further includes a fixing device 19 disposed at the second hole for fixing the fiber optic cable. The fixing device includes a groove for the fiber optic cable to pass through and a clamping plate for applying pressure to the groove. When the first end of the clamping plate is pressed, the second end will be raised, and when the second end is not pressed, the second end will be pressed at the groove.

[0060] By setting a fixing device to secure the fiber optic cable at the fiber optic box outlet, the length of the fiber optic cable extending out of the fiber optic box is prevented from changing when the drive motor is not started, thereby ensuring the stability of the automatic fiber optic cable pulling device.

[0061] like Figure 5 As shown, in one embodiment, the control system module includes: a temperature control module for controlling the operating temperature of the laser module, a main control board for issuing control commands to the temperature control module and the laser module, an operation screen for human-machine interaction, and a power supply module for supplying power to the temperature control module, the main control board and the operation screen, wherein the main control board is connected to the temperature control module, the laser module and the operation screen respectively.

[0062] The control panel can be loaded with laser operation software and clinical function application software. The laser operation software automatically identifies the laser's operating status based on the preset operating parameters through the central processor and autonomously adjusts the laser's operating parameters to maintain efficient and stable operation. The clinical function application software has treatment plans and management menus. The treatment plans include various clinical disease treatment software modules such as surgical treatment, vascular treatment, gynecological treatment, photobiological treatment, fractional therapy, and lipolysis. Clinicians can select the appropriate clinical disease treatment software according to the type of clinical disease, set different laser treatment parameters, and select different fiber optic instruments for laser surgical treatment. In particular, when selecting the vascular treatment software module for endovascular laser ablation and closure treatment of vascular diseases such as varicose veins of the great saphenous vein, small saphenous vein, and branch varicose veins, not only can the laser power be set in the treatment software, but also the LEED (energy density J / cm). It can also select a 360-degree circumferential laser fiber for endovascular treatment with a fiber optic sleeve marked with size and length scales.

[0063] Linear energy density: The required linear energy density is set based on the patient's blood vessel depth, diameter, and wall thickness. LEED: linear endovenous energy density, J / cm, refers to the average treatment energy per centimeter of blood vessel.

[0064] Doctors can set the treatment power P in the laser operating program software.

[0065] The relationship between LEED, power P, and pullback speed v is: v = P / LEED, where the unit of pullback speed v is cm / s.

[0066] The energy density per unit area, E (J / cm2), is given by: E = LEED * πD, where D is the diameter of the blood vessel.

[0067] The time to back up one centimeter of fiber is 1 / V, S / cm. Backing up the fiber according to the size markings on the fiber optic sleeve allows for very accurate dose control.

[0068] In one embodiment, the temperature control module includes a cooling fan, a heat pipe, and a thermoelectric cooler disposed inside the laser module. The heat pipe is connected to a heating device, and a solenoid valve for controlling the on / off state of the heat pipe is disposed inside the heat pipe. The controlled end of the cooling fan, the controlled end of the thermoelectric cooler, and the controlled end of the solenoid valve are all connected to the main control board.

[0069] In one embodiment, the main control board is provided with a central processing unit and a communication interface. The central processing unit is used for data processing, and the communication interface is used for outputting and receiving control signals.

[0070] There are multiple communication interfaces, which are respectively connected to the controlled end of the cooling fan, the controlled end of the thermoelectric cooler, the controlled end of the solenoid valve, and the operation panel.

[0071] In other embodiments, the main control board is also connected to peripheral devices such as a power switch, an emergency stop switch, and a key switch.

[0072] In the foregoing description of this specification, unless otherwise expressly specified and limited, the terms "fixed," "connected," or "linked" should be interpreted broadly. For example, the term "linked" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can refer to the internal communication of two components or the interaction between two components. Therefore, unless otherwise expressly limited in this specification, those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0073] While this specification has shown and described numerous embodiments of the invention, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and essence of the invention. It should be understood that various alternatives to the embodiments of the invention described herein may be employed in the practice of this invention.

Claims

1. A dot laser handpiece suitable for a 1470nm semiconductor laser therapeutic instrument, characterized in that, The application relates to a dot-matrix laser handpiece, which comprises the following parts: a cover body for covering a skin surface during laser treatment of the skin surface; an X galvanometer arranged in the cover body and used for laser scanning in an X axis under the drive of an X axis motor assembly; a Y galvanometer arranged in the cover body and used for laser scanning in a Y axis under the drive of a Y axis motor assembly; an X axis motor assembly arranged in the cover body and used for driving the X galvanometer; a Y axis motor assembly arranged in the cover body and used for driving the Y galvanometer; an exhaust pipe arranged in the cover body, one end of the exhaust pipe is arranged at the bottom of the cover body, and the other end of the exhaust pipe is connected to a negative pressure device so as to suck out smoke generated in the cover body; a cooling pipe arranged in the cover body, the end of the cooling pipe is connected to a cooling device and used for absorbing heat generated during laser treatment of the skin; the inside of the cooling pipe is composed of two independent pipes, one is a high-pressure side pipe and the other is a low-pressure side pipe, the working principle of the cooling pipe is based on the circulation and phase change of refrigerant, the refrigerant flows between the two pipes and simultaneously undergoes phase change to realize the heat absorption process; wherein the dot-matrix laser handpiece is configured to adjust the ratio of the cooling wind generated by the cooling pipe and the smoke suction intensity of the exhaust pipe to reach a suitable state.

2. The spot laser handpiece suitable for 1470nm semiconductor laser therapeutic apparatus according to claim 1, wherein, The application further comprises: a plurality of tracking rollers arranged at the bottom of the cover body and used for moving the cover body during laser treatment of the skin surface. 3.The point laser handpiece suitable for 1470nm semiconductor laser therapeutic apparatus according to claim 1 or 2, characterized in that, The application further comprises: a speed sensor arranged in the cover body and connected to a control system module of the laser treatment instrument, the speed sensor is used for monitoring the moving speed of the cover body.

4. A 1470nm semiconductor laser therapeutic instrument, characterized in that, The application comprises a laser module for generating laser, a laser output module for beam shaping and coupling output of the laser generated by the laser module, and a control system module for adjusting the operation parameters of the laser module, the laser output module comprises a collimating mirror for beam shaping of 1470nm laser generated by the laser module, a laser output interface for coupling output of the laser beam, a dot-matrix laser interface for connecting the dot-matrix handpiece to output laser in a dot-matrix mode, and the dot-matrix laser handpiece in any one of claims 1 to 3, wherein the beam output end of the collimating mirror is connected to the laser output interface and the dot-matrix laser interface respectively, the laser output interface is used for connecting with the fiber connection line of the dot-matrix laser handpiece, and the dot-matrix laser interface is used for connecting with the handle connection line of the dot-matrix laser handpiece. The laser output module further comprises a direct type laser optical fiber, a ring type laser optical fiber and a scattering type light biological probe, and the laser output interface is further used for connecting with the fiber connection line of the direct type laser optical fiber, the fiber connection line of the ring type laser optical fiber and the fiber connection line of the scattering type light biological probe respectively.

5. The 1470nm semiconductor laser therapeutic instrument of claim 4, wherein, The application further comprises:

6. The 1470nm semiconductor laser therapeutic instrument of claim 5, wherein, an automatic optical fiber pulling device for adjusting and positioning the fiber connection line of the 1470nm semiconductor laser treatment instrument, the automatic optical fiber pulling device comprises: ​ The application discloses an automatic optical fiber pulling device for a 1470nm semiconductor laser therapeutic instrument. The automatic optical fiber pulling device comprises a fiber box, a fiber disc, a driving motor and a motor control device. The fiber box is internally provided with the fiber disc. The driving motor is connected to a rotating shaft of the fiber disc.

7. The 1470nm semiconductor laser therapeutic instrument according to claim 6, wherein, The motor control device is connected to the driving motor.

8. The 1470nm semiconductor laser therapeutic apparatus according to any one of claims 4 to 7, wherein the wavelength conversion element is a wavelength conversion element that converts a wavelength of a laser beam emitted from the semiconductor laser element to a wavelength of 1470nm. The control system module comprises a temperature control module for controlling the working temperature of the laser module, a main control board for issuing control instructions to the temperature control module and the laser module, an operation screen for human-computer interaction, and a power module for supplying power to the temperature control module, the main control board and the operation screen.

9. The 1470nm semiconductor laser therapeutic instrument according to claim 8, wherein, The temperature control module comprises a refrigeration fan, a heat pipe and a thermoelectric cooler arranged in the laser module.

10. The 1470nm semiconductor laser therapeutic instrument according to claim 9, wherein, The heat pipe is connected to a heating device. The heat pipe is internally provided with an electromagnetic valve for controlling the on-off state of the heat pipe. The controlled end of the refrigeration fan, the controlled end of the thermoelectric cooler and the controlled end of the electromagnetic valve are all connected to the main control board. The main control board is provided with a central processing unit and a communication interface. The central processing unit is used for data operation. The communication interface is used for outputting and receiving control signals.

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