Laser treatment hand tool, laser treatment system and control method thereof

Abstract

The invention provides a laser treatment hand tool, a laser treatment system and a control method thereof.The laser treatment hand tool comprises a handle, a focus fixing support and a skin detection sensor, the first end of the focus fixing support is connected with the handle, and the skin detection sensor is arranged on the focus fixing support; the skin detection sensor is used for detecting the distance between the fixed focus support and the skin, and a detection signal of the skin detection sensor is a signal capable of judging the specificity of the skin. The laser treatment hand tool provided by the invention has a skin contact detection function, can specifically detect skin, and avoids waste of laser energy or damage to a human body due to the fact that the handle accidentally outputs laser when the fixed focus support is not in contact with the skin.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a laser treatment handpiece, a laser treatment system and a control method thereof. Background Art

[0002] With the continuous development of medical technology, energy is increasingly used in the medical field. For example, radio frequency can be used for medical cosmetology, human tissue ablation surgery, etc. Laser medicine is a technology that uses the characteristics of lasers for medical diagnosis and treatment. Laser medicine has become an important branch of medicine and an important branch of laser technology application. The application directions of laser medical equipment include: cosmetic dermatology (such as scar repair, skin resurfacing, laser hair removal, tattoo removal), ophthalmology (including Lasik and laser photocoagulation), dentistry, angioplasty, cancer diagnosis, cancer treatment; dermatology (treatment of melanoma), frenectomy, lithotripsy, laser mammography, medical imaging, microscopy, optical coherence tomography, optogenetics, prostatectomy, plastic surgery (laser liposuction, congenital and acquired skin injuries, burns and surgical scars), etc. Its mechanism of action is to apply energy to the lesion or the part that needs to be treated. If these energies act on normal tissues, it will cause damage. For example, laser irradiation to the human eye can cause blindness in severe cases.

[0003] Laser therapy handpiece is a common laser therapy device, which can generally be used for skin treatment or beauty. When using the laser therapy handpiece, the fixed-focus bracket of the laser therapy handpiece will be in contact with (or attached to) the skin to locate the target skin area that needs treatment or beauty on the skin, and then the handle of the laser therapy handpiece will output laser light through the fixed-focus bracket to irradiate the target skin area to treat it. However, in practice, the handle of the laser therapy handpiece may accidentally output laser light when the fixed-focus bracket is not in contact with the skin, which will not only waste laser energy, but also may cause the laser light to irradiate normal tissues of the human body and cause damage to the human body.

[0004] Therefore, it is desired to provide a laser therapy handpiece with a skin contact detection function, which can trigger the handle to output laser only when it is detected that the fixed-focus bracket is in contact with the skin, so as to avoid the handle accidentally outputting laser when the fixed-focus bracket is not in contact with the skin, resulting in waste of laser energy or damage to the human body. Summary of the invention

[0005] One of the embodiments of the present application provides a laser therapy hand tool, including: a handle, a fixed-focus bracket, and a skin detection sensor, wherein the first end of the fixed-focus bracket is connected to the handle, and the skin detection sensor is arranged on the fixed-focus bracket to detect the distance between the fixed-focus bracket and the skin, wherein the detection signal of the skin detection sensor is a signal that can be used to determine skin specificity.

[0006] In some embodiments, the skin detection sensor includes an infrared sensor, which includes an infrared transmitting tube and an infrared receiving tube. The infrared transmitting tube is used to convert electrical signals into infrared light and transmit it to the skin, and the infrared receiving tube is used to receive infrared light from the skin and convert it into electrical signals.

[0007] In some embodiments, the skin detection sensor further includes a filter, which is disposed on the receiving light path of the infrared receiving tube, and the light transmittance of the filter is infrared light with a peak value of 9 μm to 10 μm.

[0008] In some embodiments, a focusing lens is provided on the receiving light path of the infrared receiving tube and close to the infrared receiving tube.

[0009] In some embodiments, the skin detection sensor is disposed on an end of the fixed-focus bracket away from the handle.

[0010] In some embodiments, the number of the skin detection sensors is two, and the two skin detection sensors are connected in series and symmetrically arranged on the fixed-focus bracket.

[0011] In some embodiments, the laser therapy handpiece also includes a contact sensor, which is arranged on the end of the fixed-focus bracket away from the handle and is connected in series with the skin detection sensor, and the contact sensor is used to detect whether the end of the fixed-focus bracket away from the handle is in contact with the skin.

[0012] In some embodiments, the contact sensor is a proximity switch, a thermistor, or a micro switch.

[0013] In some embodiments, the number of the contact sensors is two, and the two contact sensors are connected in series and symmetrically arranged on an end of the fixed focus bracket away from the handle.

[0014] One of the embodiments of the present application provides a laser treatment system, comprising: a laser, a light guide arm, a controller, and a laser treatment handpiece as described in any of the above embodiments; wherein the light outlet of the laser is connected to the laser treatment handpiece through the light guide arm; and the controller is communicatively connected to the skin detection sensor and the laser.

[0015] In some embodiments, the controller is configured to control the laser to input laser into the handle when the skin detection sensor detects that the distance from the fixed-focus bracket to the skin is less than or equal to a preset threshold.

[0016] In some embodiments, the laser therapy handpiece also includes a contact sensor, which is communicatively connected to the controller, and the controller is configured to control the laser to output laser when the skin detection sensor detects that the distance from the fixed-focus bracket to the skin is less than or equal to a preset threshold and the contact sensor detects that the end of the fixed-focus bracket away from the handle is in contact with the skin.

[0017] One of the embodiments of the present application provides a control method for a laser treatment system, which is applied to the laser treatment system described in any of the above embodiments, including: judging that the detection object is skin through the skin detection sensor; detecting the distance from the fixed-focus bracket to the skin through the skin detection sensor; if the skin detection sensor detects that the distance from the fixed-focus bracket to the skin is less than or equal to a preset threshold, controlling the laser to input and output laser to the handle.

[0018] In some embodiments, the skin detection sensor includes an infrared sensor transmitting tube and an infrared receiving tube, and determining that the detection object of the skin detection sensor is the skin includes: preventing the infrared transmitting tube of the infrared sensor from emitting infrared light, and determining that the detection object of the skin detection sensor is the skin based on the electrical signal generated by the infrared receiving tube of the infrared sensor.

[0019] In some embodiments, the control method also includes detecting whether the end of the fixed-focus bracket away from the handle is in contact with the skin through a contact sensor. If the skin detection sensor detects that the distance from the fixed-focus bracket to the skin is less than or equal to a preset threshold and the contact sensor detects that the end of the fixed-focus bracket away from the handle is in contact with the skin, the laser is controlled to output laser.

[0020] In the laser therapy hand tool provided in the embodiment of the present application, the skin detection sensor can be used to detect the distance between the fixed-focus bracket and the skin to detect whether the fixed-focus bracket is in contact with the skin. Only when it is detected that the fixed-focus bracket is in contact with the skin, the handle is triggered to output laser for laser therapy. In this way, it can be avoided that the handle accidentally outputs laser when the fixed-focus bracket is not in contact with the skin, causing waste of laser energy or damage to the human body. At the same time, since the detection signal of the skin detection sensor is a signal that can determine the specificity of the skin, the skin detection sensor can specifically identify the skin. That is to say, the skin detection sensor can identify that its detection object is skin and then perform contact detection between the fixed-focus bracket and the skin. When the skin detection sensor identifies that its detection object is not skin, the handle will no longer be triggered to output laser. In this way, it can be avoided that the handle is mistakenly triggered to output laser when the fixed-focus bracket is in contact with other objects other than the skin, causing waste of laser energy or damage to the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The following figures describe in detail the exemplary embodiments disclosed in this application. The same reference numerals represent similar structures in several views of the drawings. Those skilled in the art will understand that these embodiments are non-limiting, exemplary embodiments, and the drawings are only for the purpose of illustration and description, and are not intended to limit the scope of this application. Other embodiments may also accomplish the inventive intent in this application. It should be understood that the drawings are not drawn to scale.

[0022] in:

[0023] Figure 1 is a schematic diagram of the structure of a laser treatment handpiece according to some embodiments of the present application;

[0024] Figure 2 is a schematic diagram of a skin contact surface 121 of a fixed-focus bracket according to some embodiments of the present application;

[0025] Figure 3 is a schematic diagram of the working principle of a skin detection sensor according to some embodiments of the present application;

[0026] Figure 4 is a schematic structural diagram of a laser treatment system according to some embodiments of the present application;

[0027] Figure 5 is a flow chart of a control method of a laser treatment system according to some embodiments of the present application. DETAILED DESCRIPTION

[0028] The following description provides specific application scenarios and requirements of the present application, with the purpose of enabling those skilled in the art to make and use the content in the present application. It will be apparent to those skilled in the art that various local modifications to the disclosed embodiments are apparent, and the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the present application. Therefore, the present application is not limited to the embodiments shown, but to the widest scope consistent with the claims.

[0029] The skin contact detection function of the laser treatment handpiece can generally be achieved by using metal electrodes. Specifically, it is necessary to set a pair of positive and negative electrode sheets on the surface of the fixed-focus bracket for contacting the skin. Since the human tissue has an impedance of about 2KΩ-20MΩ, by applying a certain voltage to the electrode sheet, when the positive and negative electrodes of the electrode sheet contact the human body, a current will be formed between the skin. After the current signal is collected through the loop and conditioned, it can be used to determine whether the fixed-focus bracket is in contact with the skin. The above method will have the following problems: when some auxiliary treatment fluids are applied to the skin surface, or there is sweat or a wound, the skin impedance will change. These factors will cause the threshold current range to be wider, and when contacting some conductors, the current size may be consistent with the skin contact, and the skin cannot be specifically detected. This may cause the fixed-focus bracket to accidentally trigger the handle to output the laser when it contacts other conductors other than the skin, resulting in a waste of laser energy or damage to the human body. Secondly, the electrode sheet will generate leakage current, and excessive leakage current will cause damage to the human body, thereby reducing the safety performance of the laser treatment handpiece.

[0030] An embodiment of the present application provides a laser therapy hand tool, comprising: a handle, a fixed-focus bracket, and a skin detection sensor, wherein the first end of the fixed-focus bracket is connected to the handle, and the skin detection sensor is arranged on the fixed-focus bracket to detect the distance between the fixed-focus bracket and the skin, wherein the detection signal of the skin detection sensor is a signal that can be used to determine skin specificity. In the laser therapy hand tool provided in the embodiment of the present application, the skin detection sensor can be used to detect the distance between the fixed-focus bracket and the skin to detect whether the fixed-focus bracket is in contact with the skin. Only when it is detected that the fixed-focus bracket is in contact with the skin, the handle is triggered to output laser for laser therapy. In this way, it can be avoided that the handle accidentally outputs laser when the fixed-focus bracket is not in contact with the skin, causing waste of laser energy or damage to the human body. At the same time, since the detection signal of the skin detection sensor is a signal that can determine the specificity of the skin, the skin detection sensor can specifically identify the skin. That is to say, the skin detection sensor can identify that its detection object is skin and then perform contact detection between the fixed-focus bracket and the skin. When the skin detection sensor identifies that its detection object is not skin, the handle will no longer be triggered to output laser. In this way, it can be avoided that the handle is mistakenly triggered to output laser when the fixed-focus bracket is in contact with other objects other than the skin, causing waste of laser energy or damage to the human body.

[0031] It can be understood that the contact between the fixed-focus bracket and the skin involved in the present application may refer to the contact between the end of the fixed-focus bracket away from the handle and the skin. Specifically, the end of the fixed-focus bracket away from the handle has a skin contact surface for contacting the skin. For example, the end surface of the fixed-focus bracket away from the handle can be a skin contact surface, and the contact between the fixed-focus bracket and the skin refers to the contact between the skin contact surface and the skin. In addition, the distance from the fixed-focus bracket to the skin involved in the present application may refer to the distance from the skin detection sensor to the skin. By detecting the distance from the skin detection sensor to the skin and based on the position of the skin detection sensor on the fixed-focus bracket (that is, the distance from the skin detection sensor to the skin contact surface is known), the distance from the skin contact surface to the skin can be calculated, thereby determining whether the skin contact surface is in contact with the skin.

[0032] The laser therapy handpiece provided in the embodiment of the present application will be described in detail below with reference to the accompanying drawings.

[0033] Figure 1 It is a schematic diagram of the structure of a laser therapy handpiece according to some embodiments of the present application. Figure 2 Schematic diagram of the skin contact surface 121 of the fixed-focus bracket according to some embodiments of the present application.

[0034] like Figure 1 As shown, the laser therapy hand tool 100 provided in the embodiment of the present application may include a handle 110 , a focus bracket 120 and a skin detection sensor 130 .

[0035] The handle 110 can be used for a staff member to hold to operate the laser therapy handpiece 100 for laser therapy. As an exemplary illustration, the handle 110 can have a laser inlet and a laser outlet, and the laser inlet can be used to connect with a laser. The laser generated by the laser can enter the handle 110 through the laser inlet. The handle 110 is provided with an optical path component, and the optical path component can make the laser entering the handle 110 propagate according to a predetermined optical path and output to the target skin area that needs to be treated through the laser outlet, so as to perform laser therapy on the target skin area. In some embodiments, the laser entering the handle 110 can come from a laser, and the laser can be connected to the laser therapy handpiece 100 through a light guide arm. When the laser therapy handpiece 100 is working, the laser can generate laser and transmit it to the handle 110 through the light guide arm. Therefore, in some embodiments, triggering the handle 110 to output laser can be achieved by controlling the laser to generate laser.

[0036] The fixed-focus bracket 120 can be used to support the handle 110, and can be used to determine the target skin area that needs to be treated on the skin. Specifically, the fixed-focus bracket 120 can be connected to the side of the handle 110 where the laser outlet is provided. When the laser is output from the laser outlet, it can pass through the fixed-focus bracket 120 and irradiate the target skin area determined by the fixed-focus bracket 120 to perform laser treatment on it.

[0037] In some embodiments, in order to facilitate the laser to pass through the fixed-focus bracket 120 to irradiate the target skin area, the fixed-focus bracket 120 may be a hollow structure, the laser outlet is facing the inside of the fixed-focus bracket 120, and the end of the fixed-focus bracket 120 away from the handle 110 may be constructed as a circular ring or a square frame structure, that is, the overall shape of the skin contact surface 121 on the fixed-focus bracket 120 may be a circular ring or a square frame. Further, the target skin area may be determined by the end of the fixed-focus bracket 120 away from the handle 110. As an exemplary illustration, when using the laser therapy handpiece 100, the operator may place the laser therapy handpiece 100 on the patient's skin so that the skin contact surface 121 is in contact with the skin, wherein the skin area located within the skin contact surface 121 is the target skin area.

[0038] The skin detection sensor 130 can be arranged on the fixed-focus bracket 120 to detect the distance between the fixed-focus bracket 120 and the skin. The skin detection sensor 130 is used to detect the distance between the fixed-focus bracket 120 and the skin. Whether the fixed-focus bracket 120 (skin contact surface 121) is in contact with the skin can be detected according to whether the distance between the fixed-focus bracket 120 and the skin is less than or equal to a preset threshold, so that only when the fixed-focus bracket 120 is detected to be in contact with the skin, the laser is controlled to generate laser to make the handle 110 output laser for laser treatment. In this way, it can be avoided that the handle accidentally outputs laser when the fixed-focus bracket is not in contact with the skin, resulting in waste of laser energy or damage to the human body. In some embodiments, the skin detection sensor 130 can be a sensor that can realize distance detection. For example, the skin detection sensor 130 can be an ultrasonic sensor, an infrared sensor, a radar, etc.

[0039] In some embodiments, the skin detection sensor 130 may be disposed at any position on the fixed-focus bracket 120 that does not affect the skin detection sensor 130 from sending or receiving a detection signal. In some embodiments, the preset threshold may be determined based on the position of the skin detection sensor 130 on the fixed-focus bracket 120. In some embodiments, the skin detection sensor 130 may be disposed on a side of the fixed-focus bracket 120, and the preset threshold is the distance from the position of the skin detection sensor 130 on the fixed-focus bracket 120 to the skin contact surface 121. When the skin detection sensor 130 detects that the distance from the fixed-focus bracket 120 (i.e., the position of the skin detection sensor 130 on the fixed-focus bracket 120) to the skin is less than or equal to the distance from the position of the skin detection sensor 130 on the fixed-focus bracket 120 to the skin contact surface 121, it may be determined that the fixed-focus bracket 120 (skin contact surface 121) is in contact with the skin. In some embodiments, as Figure 1 and Figure 2 As shown, the skin contact sensor can be directly set on the skin contact surface 121 of the fixed-focus bracket, and the preset threshold is 0. When the skin detection sensor 130 detects that the distance between the fixed-focus bracket 120) and the skin is less than or equal to 0, the fixed-focus bracket 120 (skin contact surface 121) can be in contact with the skin.

[0040] It should be noted that the detection signal may refer to a physical quantity signal from the measured object that can be detected by the sensor, wherein the physical quantity signal from the measured object may be a physical quantity signal that has changed in the measured object and / or a physical quantity signal emitted by the measured object itself. For example, the detection signal of an ultrasonic sensor may be an ultrasonic signal emitted by the ultrasonic sensor to the measured object and bounced back from the measured object, or may be an ultrasonic signal emitted directly by the measured object. For another example, the detection signal of an infrared sensor may be an infrared light signal emitted by the infrared sensor to the measured object and reflected back from the measured object, or may be an infrared light signal radiated by the measured object itself.

[0041] In some embodiments, the detection signal of the skin detection sensor 130 may be a signal that can determine skin specificity, so that the skin detection sensor 130 can specifically identify the skin. Specifically, when the detection object of the skin detection sensor 130 is skin, the skin detection sensor 130 can receive a detection signal from the detection object to identify that the detection object is skin and then perform skin contact detection, and when the detection object of the skin detection sensor 130 is not skin, the skin detection sensor 130 cannot receive a detection signal from the detection object and will not perform skin contact detection, and it is impossible to trigger the handle 110 to output laser, so that the fixed-focus bracket 120 can be prevented from mistakenly triggering the handle 110 to output laser when it comes into contact with other objects other than skin, resulting in waste of laser energy or damage to the human body.

[0042] Further, the detection signal of the skin detection sensor 130 can be a signal for characterizing skin specificity, that is, a signal that can be used to distinguish skin from other objects. As an exemplary illustration, the human body temperature is usually around 37°C, and the human skin will radiate infrared light with a peak value of 9μm-10μm outward, and when infrared light with a peak value of 9μm-10μm is emitted to the human skin, the skin will reflect more than 40% of the energy of the emitted infrared light outward. According to the above characteristics, it can be concluded that infrared light with a peak value of 9μm-10μm can be used as the detection signal of the skin detection sensor 130 to determine skin specificity and distinguish skin from other objects. For example, the skin detection sensor 130 can determine that the detection object is skin by detecting infrared light with a peak value of 9μm-10μm or its energy change. In some embodiments, when the detection signal of the skin detection sensor 130 is infrared light with a peak value of 9μm-10μm, the skin detection sensor 130 can use an infrared sensor that can emit and receive infrared light with a peak value of 9μm-10μm to detect the distance from the fixed-focus bracket 120 to the skin. In some embodiments, when the detection signal of the skin detection sensor 130 is other signals capable of determining skin specificity, the skin detection sensor 130 may also be a corresponding sensor capable of detecting distance.

[0043] The skin detection sensor 130 will be described in detail below by taking the detection signal of the skin detection sensor 130 as infrared light with a peak value of 9 μm-10 μm as an example.

[0044] Figure 3 It is a schematic diagram of the working principle of the skin detection sensor shown in some embodiments of the present application.

[0045] In some embodiments, Figure 3As shown, the skin detection sensor 130 may include an infrared emitting tube 210 and an infrared receiving tube 220. The infrared emitting tube 210 may be used to convert an electrical signal into infrared light and transmit it to the skin, and the infrared receiving tube 220 may be used to receive infrared light from the skin and convert it into an electrical signal. As an exemplary illustration, when the skin detection sensor 130 detects the distance from the fixed-focus bracket 120 to the skin, the infrared emitting tube 210 may emit infrared light to the skin under the drive of the corresponding driving circuit. The infrared light is reflected by the skin and received by the infrared receiving tube 220 to generate an electrical signal. Since the distance from the fixed-focus bracket 120 (skin detection sensor 130) to the skin is different, the energy of the infrared light received by the infrared receiving tube 220 will also be different, and the generated electrical signal will also be different. Therefore, the distance from the fixed-focus bracket 120 to the skin can be determined by the electrical signal generated by the infrared receiving tube 220. In some embodiments, the driving circuit corresponding to the infrared emitting tube 210 can adopt a constant current driving method, so that the electrical signal can be constantly input into the infrared emitting tube 210, so that the intensity of the infrared light emitted by the infrared emitting tube 210 is stable.

[0046] In some embodiments, the skin detection sensor 130 may further include a signal processing module, and the signal processing module may include an analog-to-digital conversion circuit for sampling the electrical signal generated by the infrared receiving tube 220 to convert the electrical signal into a digital signal that can be processed by the control chip, so as to facilitate subsequent actions. In some embodiments, the signal processing module may also include an amplification and filtering circuit for amplifying and filtering the electrical signal generated by the infrared receiving tube 220, so that the electrical signal generated by the infrared receiving tube 220 can be sampled by the analog-to-digital conversion circuit, and the signal-to-noise ratio of the electrical signal can be improved, thereby improving the detection accuracy of the skin detection sensor 130.

[0047] In some embodiments, in order to make the detection signal of the skin detection sensor 130 be infrared light with a peak value of 9 μm to 10 μm, so as to achieve skin-specific detection, Figure 3As shown, the skin detection sensor 130 may further include a filter 230, and the filter 230 is arranged on the receiving light path of the infrared receiving tube 220. The light-transmitting object of the filter 230 is infrared light with a peak value of 9μm to 10μm, that is, only infrared light with a peak value of 9μm to 10μm can pass through the filter 230, so as to prevent ambient light and light of other wavebands (for example, laser, knowledge light) from interfering with the infrared receiving tube 220, and ensure that the infrared receiving tube 220 can only receive infrared light with a peak value of 9μm to 10μm, so as to realize skin-specific detection. As an exemplary explanation, when the skin detection sensor 130 specifically detects the skin, the infrared transmitting tube 210 does not emit infrared light. If the infrared receiving tube 220 generates an electrical signal (for example, generates a high-level signal), it means that the infrared receiving tube 220 has received the infrared light with a peak value of 9μm to 10μm radiated by the human body, and it can be determined that the detection object of the infrared sensor is the skin; and when the infrared transmitting tube 210 does not emit infrared light, if the infrared receiving tube 220 does not generate an electrical signal (or generates a low-level signal), it means that the infrared receiving tube 220 has not received the infrared light with a peak value of 9μm to 10μm radiated by the human body, and it can be determined that the detection object of the infrared sensor is not skin.

[0048] In some embodiments, in order to prevent the filter 230 from filtering out the infrared light emitted by the infrared emitting tube 210 when the skin detection sensor 130 detects the distance from the fixed-focus bracket 120 to the skin, the infrared light emitted by the infrared emitting tube 210 is also infrared light with a peak value of 9 μm to 10 μm.

[0049] In some embodiments, Figure 3 As shown, a focusing lens 240 (for example, a Fresnel lens) is provided on the receiving light path of the infrared receiving tube 220 and near the infrared receiving tube. The focusing lens 240 can focus the infrared light from the skin (for example, the infrared light emitted by the infrared transmitting tube 210 and / or the infrared light radiated by human skin) into the infrared receiving tube 220 to improve the sensitivity of the infrared receiving tube 220.

[0050] In some embodiments, Figure 2 As shown, the number of the skin detection sensors 130 can be two, and the two skin detection sensors 130 are connected in series and symmetrically arranged on the fixed-focus bracket 120. For example, the two skin detection sensors 130 can be symmetrically arranged on the skin contact surface 121 of the fixed-focus bracket 120; for another example, the two skin detection sensors 130 can be symmetrically arranged on the side surfaces of the fixed-focus bracket 120.

[0051] By providing two skin detection sensors 130, the accuracy of the detection of the contact between the fixed-focus bracket 120 and the skin can be improved, and the handle 110 can be triggered to output the laser only when both skin detection sensors 130 detect that the distance between the fixed-focus bracket 120 and the skin is less than or equal to the preset threshold, thereby reducing the risk of false triggering of the handle 110 to output the laser. In some embodiments, the number of the skin detection sensors 130 can be more than two, and more than two skin detection sensors 130 can be arranged on the fixed-focus bracket 120 around the circumference of the fixed-focus bracket 120. For example, more than two skin detection sensors 130 can be arranged in a ring array on the skin contact surface 121. For another example, more than two skin detection sensors 130 can be arranged in a ring array on the side of the fixed-focus bracket 120.

[0052] By setting up more than two skin detection sensors 130, the distances from multiple positions of the fixed-focus bracket 120 to the skin can be detected, and the accuracy of detecting the contact between the fixed-focus bracket 120 and the skin can be further improved, so that the handle 110 can be triggered to output laser only when more than two skin detection sensors 130 detect that the distance from the fixed-focus bracket 120 to the skin is less than or equal to a preset threshold. This can further reduce the risk of accidentally triggering the handle 110 to output laser.

[0053] It can be understood that when the number of skin detection sensors 130 is two or more, the preset threshold corresponding to each skin detection sensor 130 when detecting the distance from the fixed-focus bracket 120 to the skin to detect the contact between the fixed-focus bracket 120 and the skin can be the same or different, and the preset threshold corresponding to each skin detection sensor 130 can be specifically determined according to its distance from the skin contact surface 121.

[0054] In some embodiments, Figure 2 As shown, the laser therapy hand tool 100 may also include a contact sensor 140. The contact sensor 140 may be disposed on the end of the fixed-focus bracket 120 away from the handle 110 (i.e., the skin contact surface 121) and connected in series with the skin detection sensor 130. The contact sensor 140 may be used to detect that the end of the fixed-focus bracket 120 away from the handle 110 (i.e., the skin contact surface 121) is in contact with the skin. In some embodiments, the contact sensor 140 may be a proximity switch, a thermistor, or a micro switch. As an exemplary illustration, when the skin contact surface 121 is in contact with the skin, the contact sensor 140 may directly generate an electrical signal that can indicate that the skin contact surface 121 is in contact with the skin.

[0055] By arranging the contact sensor 140 and the skin detection sensor 130 in series, it can be determined that the fixed-focus bracket 120 is in contact with the skin only when the skin detection sensor 130 detects that the distance from the fixed-focus bracket 120 to the skin is less than a preset threshold and the contact sensor 140 detects that the skin contact surface 121 is in contact with the skin, thereby triggering the handle 110 to output laser, thereby further reducing the risk of accidentally triggering the handle 110 to output laser.

[0056] In some embodiments, Figure 2 As shown, the number of the contact sensors 140 may be two, and the two contact sensors 140 are connected in series and symmetrically arranged on the skin contact surface 121 of the fixed-focus bracket 120 .

[0057] By providing two contact sensors 140, the accuracy of detecting the contact between the fixed-focus bracket 120 and the skin can be further improved, so that when the skin detection sensor 130 detects that the distance between the fixed-focus bracket 120 and the skin is less than or equal to a preset threshold, the handle 110 can be triggered to output laser only when both contact sensors 140 detect that the skin contact surface 121 is in contact with the skin, thereby reducing the risk of false triggering of the handle 110 to output laser. In some embodiments, the number of the contact sensors 140 can be more than two, and the more than two contact sensors 140 can be arranged in a ring array on the skin contact surface 121.

[0058] By setting up more than two contact sensors 140, it is possible to detect whether multiple positions of the skin contact surface 121 are in contact with the skin, which can further improve the accuracy of detecting the contact between the skin contact surface 121 and the skin, so that the handle 110 can be triggered to output laser only when more than two contact sensors 140 detect that the skin contact surface 121 is in contact with the skin. This can further reduce the risk of accidentally triggering the handle 110 to output laser.

[0059] Figure 4 It is a schematic diagram of the structure of a laser treatment system according to some embodiments of the present application.

[0060] like Figure 4 As shown, the embodiment of the present application further provides a laser treatment system 400, which may include a laser 410, a light guide arm 420, a controller 430, and the laser treatment handpiece 100. The light outlet of the laser 410 is connected to the laser treatment handpiece 100 through the light guide arm 420, and the controller 430 is connected to the skin detection sensor 130 and the laser 410 in communication.

[0061] In some embodiments, when the skin detection sensor 130 detects that the distance between the fixed-focus bracket 120 and the skin is less than or equal to a preset threshold, the controller 430 can determine that the fixed-focus bracket 120 is in contact with the skin, and then generate a control signal and send it to the laser 410 to control the laser 410 to output laser. The laser is input into the handle 110 of the laser therapy handpiece 100 through the light guide arm 420, so that the handle 110 can output laser for laser therapy.

[0062] In some embodiments, when the number of the skin detection sensors 130 is multiple (for example, two or more), the controller 430 can determine that the fixed-focus bracket 120 is in contact with the skin only when all skin detection sensors 130 detect that the distance from the fixed-focus bracket 120 to the skin is less than or equal to a preset threshold, and then generate a control signal and send it to the laser 410 to control the laser 410 to output laser, and the laser is input into the handle 110 of the laser therapy handpiece 100 through the light guide arm 420, so that the handle 110 can output laser for laser therapy.

[0063] In some embodiments, when the laser therapy handpiece 100 further includes a contact sensor 140, the contact sensor 140 is in communication connection with the controller 430. When the skin detection sensor 130 detects that the distance between the fixed-focus bracket 120 and the skin is less than or equal to a preset threshold, and the contact sensor 140 detects that the end of the fixed-focus bracket 120 away from the handle 110 (i.e., the skin contact surface 121) is in contact with the skin, the controller 430 can determine that the fixed-focus bracket 120 is in contact with the skin, and then generates a control signal and sends it to the laser 410 to control the laser 410 to output laser light, and the laser light is input into the handle 110 of the laser therapy handpiece 100 through the light guide arm 420, so that the handle 110 can output laser light for laser therapy.

[0064] In some embodiments, when the number of the contact sensors 140 is multiple (for example, two or more), the controller 430 can determine that the fixed-focus bracket 120 is in contact with the skin only when the skin detection sensor 130 detects that the distance from the fixed-focus bracket 120 to the skin is less than or equal to a preset threshold, and multiple contact sensors 140 all detect that the end of the fixed-focus bracket 120 away from the handle 110 (i.e., the skin contact surface 121) is in contact with the skin, and then generate a control signal and send it to the laser 410 to control the laser 410 to output laser, and the laser is input into the handle 110 of the laser therapy handpiece 100 through the light guide arm 420, so that the handle 110 outputs laser for laser therapy.

[0065] In some embodiments, when the skin detection sensor 130 includes an infrared transmitting tube 210 and an infrared receiving tube 220, when the skin detection sensor 130 specifically detects the skin, the controller 430 can control the infrared transmitting tube 210 not to emit infrared light, and determine that the detection object of the skin detection sensor 130 is the skin based on the electrical signal generated by the infrared receiving tube 220. After determining that the detection object of the skin detection sensor 130 is the skin, the controller 430 can also control the infrared transmitting tube 210 to emit infrared light to realize the distance detection from the fixed-focus bracket 120 to the skin.

[0066] Figure 5 is a flow chart of a control method of a laser treatment system according to some embodiments of the present application.

[0067] like Figure 5 As shown, the present application embodiment also provides a control method 500 of a laser treatment system, which can be applied to Figure 4 A laser therapy system 400 is shown in FIG.

[0068] like Figure 5 As shown, the control method 500 may include the following steps:

[0069] Step S510: determining that the detection object is skin by the skin detection sensor 130.

[0070] In step S510, in some embodiments, the skin detection sensor 130 may include an infrared emitting tube 210 and an infrared receiving tube 220. In some embodiments, the detection object may be determined to be skin by whether the infrared receiving tube 220 receives infrared light with a peak value of 9μm to 10μm. Specifically, the infrared emitting tube 210 may be made not to emit infrared light, and then the detection object may be determined to be skin according to whether the infrared receiving tube 220 of the skin detection sensor 130 generates an electrical signal. Further, if the infrared receiving tube 220 generates an electrical signal, it may be indicated that the infrared receiving tube 220 receives infrared light with a peak value of 9μm to 10μm radiated by the human body, so that the detection object of the skin detection sensor 130 may be determined to be skin; and when the infrared emitting tube 210 does not emit infrared light, if the infrared receiving tube 220 does not generate an electrical signal, it may be indicated that the infrared receiving tube 220 does not receive infrared light with a peak value of 9μm to 10μm radiated by the human body, and then the detection object of the skin detection sensor 130 may be determined to be non-skin.

[0071] Step S520 , detecting the distance between the fixed-focus bracket 120 and the skin by the skin detection sensor 130 .

[0072] In step S520, for how to detect the distance between the fixed-focus bracket 120 and the skin through the skin detection sensor 130, reference may be made to the above description of the skin detection sensor 130, which will not be repeated here.

[0073] Step S530: If the skin detection sensor 130 detects that the distance between the fixed-focus bracket 120 and the skin is less than or equal to a preset threshold, the laser is controlled to output laser.

[0074] In step S530, if the skin detection sensor 130 detects that the distance between the fixed-focus bracket 120 and the skin is less than or equal to a preset threshold, the controller 430 can determine that the fixed-focus bracket 120 is in contact with the skin, and then generate a control signal and send it to the laser 410 to control the laser 410 to generate laser and input it into the handle 110 of the laser therapy handpiece 100 through the light guide arm 420, so that the handle 110 can output laser for laser therapy.

[0075] In some embodiments, when the number of the skin detection sensors 130 is multiple (for example, two or more), the control method 400 also includes the controller 430 determining that the fixed-focus bracket 120 is in contact with the skin only when all skin detection sensors 130 detect that the distance from the fixed-focus bracket 120 to the skin is less than or equal to a preset threshold, and then generating a control signal and sending it to the laser 410 to control the laser 410 to output laser, and the laser is input into the handle 110 of the laser therapy handpiece 100 through the light guide arm 420, so that the handle 110 can output laser for laser therapy.

[0076] In some embodiments, when the laser therapy handpiece 100 further includes a contact sensor 140, the control method 500 further includes detecting whether the end of the fixed-focus bracket 120 away from the handle 110 (skin contact surface 121) is in contact with the skin through the contact sensor 140. Further, the control method 500 further includes that when the skin detection sensor 130 detects that the distance between the fixed-focus bracket 120 and the skin is less than or equal to a preset threshold, and the contact sensor 140 detects that the end of the fixed-focus bracket 120 away from the handle 110 (i.e., the skin contact surface 121) is in contact with the skin, the controller 430 can determine that the fixed-focus bracket 120 is in contact with the skin, and then generates a control signal and sends it to the laser 410 to control the laser 410 to output laser, and the laser is input into the handle 110 of the laser therapy handpiece 100 through the light guide arm 420, so that the handle 110 outputs laser to perform laser therapy.

[0077] In some embodiments, when the number of the contact sensors 140 is multiple (for example, two or more), the control method 500 also includes the controller 430 determining that the fixed-focus bracket 120 is in contact with the skin only when the skin detection sensor 130 detects that the distance from the fixed-focus bracket 120 to the skin is less than or equal to a preset threshold, and multiple contact sensors 140 all detect that the fixed-focus bracket 120 is in contact with the skin at one end away from the handle 110 (i.e., the skin contact surface 121), and then generates a control signal and sends it to the laser 410 to control the laser 410 to generate laser and input it into the handle 110 of the laser therapy handpiece 100 through the light guide arm 420, so that the handle 110 outputs laser for laser therapy.

[0078] The beneficial effects that may be brought about by the embodiments of the present application include but are not limited to: (1) by arranging a skin contact sensor on the fixed-focus bracket, the distance between the fixed-focus bracket and the skin is detected to detect whether the fixed-focus bracket is in contact with the skin, thereby preventing the handle from accidentally outputting laser when the fixed-focus bracket is not in contact with the skin, causing waste of laser energy or causing damage to the human body; (2) at the same time, the detection signal of the skin detection sensor is a signal that can determine skin specificity, so that the skin detection sensor can specifically identify the skin, thereby preventing the handle from mistakenly triggering laser output when the fixed-focus bracket contacts other objects other than the skin, causing waste of laser energy or causing damage to the human body; (3) by arranging a filter whose light-transmitting object is infrared light with a peak value of 9μm-10μm on the receiving light path of the infrared receiving tube of the infrared sensor, the infrared receiving tube can only receive infrared light that can receive a peak value of 9μm-10μm, thereby realizing specific detection of the skin by the infrared sensor; (4) by arranging a focusing lens on the receiving light path of the infrared receiving tube of the infrared sensor, the sensitivity of the infrared receiving tube can be improved; (5) by arranging multiple skin detection sensors and / or multiple contact sensors, it is possible. The risk of accidentally triggering the handle 110 to output laser is reduced.

[0079] It should be noted that different embodiments may produce different beneficial effects. In different embodiments, the beneficial effects that may be produced may be any one or a combination of the above, or any other possible beneficial effects.

[0080] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of this specification. Although not explicitly stated here, those skilled in the art may make various modifications, improvements and corrections to this application. Such modifications, improvements and corrections are suggested in this specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of this application.

[0081] It should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "fix" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a rotating connection or a sliding connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood in combination with specific circumstances.

[0082] In addition, when terms such as "first", "second", and "third" are used in the specification of this application to describe various features, these terms are only used to distinguish these features and cannot be understood as indicating or implying the relationship between the features, the relative importance, or implicitly indicating the number of features indicated.

[0083] In addition, the present specification describes exemplary embodiments by reference to idealized exemplary cross-sectional views and / or plan views and / or stereograms. Therefore, differences from the illustrated shapes due to, for example, manufacturing techniques and / or tolerances are foreseeable. Therefore, the exemplary embodiments should not be interpreted as being limited to the shapes of the regions shown herein, but should include deviations in shapes caused by, for example, manufacturing. Therefore, the regions shown in the figures are schematic in nature, and their shapes are not intended to illustrate the actual shapes of the regions of the device nor to limit the scope of the exemplary embodiments.

[0084] At the same time, the present application uses specific words to describe the embodiments of this specification. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in the present application does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0085] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more embodiments of the invention, in the above description of the embodiments of this application, multiple features are sometimes combined into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0086] Finally, it should be understood that the embodiments described in this application are only used to illustrate the principles of the embodiments of the present application. Other variations may also fall within the scope of the present application. Therefore, as an example and not a limitation, the alternative configurations of the embodiments of the present application may be considered to be consistent with the teachings of the present application. Accordingly, the embodiments of the present application are not limited to the embodiments explicitly introduced and described in the present application.

Claims

1. A laser treatment hand tool, characterized in that: include: A handle, a fixed-focus bracket and a skin detection sensor, wherein the first end of the fixed-focus bracket is connected to the handle, and the skin detection sensor is arranged on the fixed-focus bracket to detect the distance between the fixed-focus bracket and the skin, wherein the detection signal of the skin detection sensor is a signal that can determine skin specificity.

2. The laser therapy handpiece according to claim 1, characterized in that: The skin detection sensor comprises an infrared transmitting tube and an infrared receiving tube. The infrared transmitting tube is used to convert an electrical signal into infrared light and transmit it to the skin, and the infrared receiving tube is used to receive the infrared light from the skin and convert it into an electrical signal.

3. The laser therapy handpiece according to claim 2, characterized in that: The skin detection sensor further comprises a filter, which is arranged on the receiving light path of the infrared receiving tube, and the light-transmitting object of the filter is infrared light with a peak value of 9 μm to 10 μm.

4. The laser treatment handpiece according to claim 2, characterized in that: A focusing lens is provided on the receiving light path of the infrared receiving tube and close to the infrared receiving tube.

5. The laser therapy handpiece according to claim 1, characterized in that: The skin detection sensor is arranged on an end of the fixed-focus bracket away from the handle.

6. The laser therapy handpiece according to claim 1, characterized in that: The number of the skin detection sensors is two, and the two skin detection sensors are connected in series and symmetrically arranged on the fixed-focus bracket.

7. The laser therapy handpiece according to claim 1, characterized in that: The laser therapy handpiece also includes a contact sensor, which is arranged on the end of the fixed-focus bracket away from the handle and is connected in series with the skin detection sensor. The contact sensor is used to detect whether the end of the fixed-focus bracket away from the handle is in contact with the skin.

8. The laser therapy handpiece according to claim 7, characterized in that: The contact sensor is a proximity switch, a thermistor or a micro switch.

9. The laser therapy handpiece according to claim 7, characterized in that: The number of the contact sensors is two, and the two contact sensors are connected in series and symmetrically arranged on the end of the fixed focus bracket away from the handle.

10. A laser treatment system, characterized in that: include: A laser, a light-guiding arm, a controller, and a laser therapy handpiece as described in any one of claims 1 to 9; wherein the light outlet of the laser is connected to the laser therapy handpiece through the light-guiding arm; and the controller is communicatively connected to the skin detection sensor and the laser.

11. The laser treatment system according to claim 10, characterized in that: The controller is configured to control the laser to output laser when the skin detection sensor detects that the distance from the fixed-focus bracket to the skin is less than or equal to a preset threshold.

12. The laser treatment system according to claim 10, characterized in that: The laser therapy handpiece also includes a contact sensor, which is communicatively connected to the controller. The controller is configured to control the laser to output laser when the skin detection sensor detects that the distance from the fixed-focus bracket to the skin is less than or equal to a preset threshold and the contact sensor detects that the end of the fixed-focus bracket away from the handle is in contact with the skin.

13. A control method for a laser treatment system, applied to the laser treatment system according to any one of claims 10 to 12, characterized in that: include: Determining that the detection object is skin by the skin detection sensor; The distance from the fixed-focus bracket to the skin is detected by a skin detection sensor; If the skin detection sensor detects that the distance from the fixed-focus bracket to the skin is less than or equal to a preset threshold, the laser is controlled to output laser.

14. The control method according to claim 13, characterized in that: The skin detection sensor comprises an infrared transmitting tube and an infrared receiving tube, and determining that the detection object of the skin detection sensor is the skin comprises: determining that the detection object of the skin detection sensor is the skin according to an electrical signal generated by the infrared receiving tube.

15. The control method according to claim 13, characterized in that: The control method also includes detecting whether the end of the fixed-focus bracket away from the handle is in contact with the skin through a contact sensor. If the skin detection sensor detects that the distance from the fixed-focus bracket to the skin is less than or equal to a preset threshold and the contact sensor detects that the end of the fixed-focus bracket away from the handle is in contact with the skin, the laser is controlled to output laser.

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