Light guide structure and laser therapy device

Abstract

The embodiment of the present application discloses a light guide structure and a laser treatment instrument, which comprises a holding assembly, a working tip assembly which is detachably connected to the holding assembly, and a working tip identification assembly, wherein the working tip identification assembly comprises a coupling element arranged on the working tip assembly and an inductive coupling element arranged on the holding assembly, and the inductive coupling element is matched with the coupling element and used for identifying the connection state of the working tip assembly and the holding assembly. The light guide structure provided by the present application is matched with the inductive coupling element arranged on the holding assembly through the coupling element arranged on the working tip assembly, so as to identify the connection state of the working tip assembly and the holding assembly, and then the laser treatment instrument can avoid unnecessary harm to the operator and the patient, thereby improving the safety of the laser treatment instrument.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically, to a light guide structure and a laser therapy device. Background Technology

[0002] Laser therapy devices can reduce blood viscosity, lower blood lipids, prevent thrombosis, stabilize blood pressure, and improve sub-health symptoms. This is because the photons stimulate phagocytes, accelerate lipoprotein degradation, reduce peripheral resistance, improve microcirculation, and quickly relieve symptoms. With the continuous development of medical technology, laser therapy devices are widely used to treat oral diseases such as gingivitis and periodontitis. However, when using a laser therapy device for oral treatment, the machine only needs to emit the laser when the working tip is inserted into the handle. If the working tip is not inserted, accidental activation of the switch may cause unnecessary harm to the operator and patient, thus lowering the safety of the laser therapy device and increasing energy consumption, reducing the product's battery life.

[0003] In the existing technology, because the laser therapy device cannot recognize the connection status of the working tip, when the working tip is not inserted, it may cause unnecessary harm to the operator and the patient due to accidental activation of the switch, thus making the laser therapy device less safe.

[0004] Therefore, how to improve the safety of laser therapy devices has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a light guiding structure to improve the safety of laser therapy devices.

[0006] Another object of the present invention is to provide a laser therapy device having the above-described light-guiding structure.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A light guide structure, comprising:

[0009] Holding components;

[0010] The working tip assembly is detachably connected to the grip assembly;

[0011] A working tip recognition component includes a coupling element disposed on the working tip component and a sensing coupling element disposed on the grip component. The sensing coupling element cooperates with the coupling element to identify the connection state between the working tip component and the grip component.

[0012] Optionally, in the above light guide structure, the grip component includes a handle, a laser is disposed inside the handle, and an inductive coupling element is disposed inside the handle and electrically connected to the laser for controlling the opening and closing state of the laser.

[0013] Optionally, in the above light guide structure, the inductive coupling element is a Hall device, and the coupling element is a magnet; when the working tip assembly and the gripping assembly are connected, the inductive coupling element turns on the laser; when the working tip assembly and the gripping assembly are separated, the inductive coupling element turns off the laser.

[0014] Optionally, in the above light guide structure, the working tip assembly includes a working tip and a fixing component assembly, the working tip and the fixing component assembly are detachably connected, the fixing component assembly is connected to the gripping assembly, and the coupling element is disposed on the fixing component assembly.

[0015] Optionally, in the above light guide structure, the fixing component assembly includes a fixing component and a limiting component disposed on the fixing component. The fixing component is provided with a plug-in portion, which is detachably disposed at the laser emission port position of the laser. The working tip is provided with a snap-fit ​​portion, which snaps into the limiting component to prevent the working tip from loosening.

[0016] Optionally, in the above-mentioned light guide structure, the insertion part of the fixing member is provided with a through hole, and an optical fiber assembly is disposed in the through hole. The first end of the optical fiber assembly is used to abut against the working tip, and the second end of the optical fiber assembly is used to connect to the laser emission port of the laser.

[0017] Optionally, in the above light guiding structure, the optical fiber assembly includes an optical fiber and an optical fiber sleeve for protecting the optical fiber, with the optical fiber passing through the optical fiber sleeve.

[0018] Optionally, in the above-mentioned light guiding structure, the optical fiber sleeve is provided with an abutment portion, the fixing member is provided with a receiving groove, the coupling element is located in the receiving groove, and the coupling element has a first side and a second side disposed opposite to each other, and a reset elastic member is provided in the receiving groove, the abutment portion of the optical fiber sleeve abuts against the first side of the coupling element, the second side of the coupling element abuts against the first end of the reset elastic member, and the second end of the reset elastic member abuts against the bottom wall of the receiving groove.

[0019] Optionally, in the above light guide structure, the working tip is connected to the holding component, the working tip abuts against the first end of the optical fiber component, the reset elastic element is in the first state, the second end of the optical fiber component is connected to the laser emission port of the laser, and a first preset distance is formed between the coupling element and the inductive coupling element, so that the inductive coupling element turns on the laser.

[0020] The working tip is separated from the gripping assembly, the abutting part of the optical fiber sleeve abuts against the limiting member, the reset elastic member is in the second state, the second end of the optical fiber assembly is disengaged from the laser emission port of the laser, and a second preset distance is formed between the coupling element and the inductive coupling member, and the second preset distance is greater than the first preset distance, so that the inductive coupling member turns off the laser.

[0021] Optionally, in the above light guide structure, the gripping component is provided with an activator for emitting laser light, and the activator is linked with the inductive coupling component.

[0022] A laser therapy device includes a light guide structure, wherein the light guide structure is as described in any of the preceding claims.

[0023] The light guide structure provided by this invention uses a coupling element on the working tip assembly and a sensing coupling element on the holding assembly, with the sensing coupling element cooperating with the coupling element to identify the connection state between the working tip assembly and the holding assembly. When the working tip assembly and the holding assembly are separated, the coupling element on the working tip assembly moves away from the sensing coupling element. At this time, the sensing coupling element detects that the working tip assembly and the holding assembly are separated, thus allowing the laser therapy device to perform actions that avoid causing unnecessary harm to the operator and the patient. When the working tip assembly and the holding assembly are connected, the coupling element on the working tip assembly moves closer to the sensing coupling element. At this time, the sensing coupling element detects that the working tip assembly and the holding assembly are connected, thus allowing the laser therapy device to operate normally.

[0024] Compared with the prior art, the light guide structure provided by the present invention uses a coupling element on the working tip assembly to cooperate with a sensing coupling element on the holding assembly to identify the connection state between the working tip assembly and the holding assembly, thereby enabling the laser therapy device to perform actions that avoid causing unnecessary harm to the operator and the patient, thus improving the safety of the laser therapy device. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the light guide structure provided in an embodiment of the present invention;

[0027] Figure 2 for Figure 1 Sectional view of AA in the middle;

[0028] Figure 3 A schematic diagram of the working tip provided in an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of the fastener provided in an embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram of the structure of the limiting member provided in an embodiment of the present invention;

[0031] Figure 6 This is a schematic diagram of the structure of the optical fiber sleeve provided in an embodiment of the present invention;

[0032] Figure 7 This is a schematic diagram of the optical fiber structure provided in an embodiment of the present invention;

[0033] Figure 8 This is a schematic diagram of the assembly of the optical fiber sleeve and the optical fiber provided in an embodiment of the present invention;

[0034] Figure 9 This is a schematic diagram of the structure of the handheld component provided in an embodiment of the present invention;

[0035] Figure 10 This is a schematic diagram of the first state of the light guide structure provided in an embodiment of the present invention;

[0036] Figure 11 This is a schematic diagram of the second state of the light guide structure provided in an embodiment of the present invention.

[0037] Among them, 100 is the light guide structure, 101 is the working tip, 1011 is the snap-fit ​​part, 102 is the handle, 103 is the starting part, 104 is the inductive coupling part, 105 is the laser, 1051 is the laser emission port, 106 is the fiber optic sleeve, 1061 is the abutment part, 107 is the fiber optic cable, 108 is the fixing part, 1081 is the insertion part, 1082 is the through hole, 1083 is the receiving groove, 109 is the limiting part, 110 is the coupling element, and 111 is the reset elastic part. Detailed Implementation

[0038] The core of this invention lies in providing a light-guiding structure to improve the safety of laser therapy devices.

[0039] Another core aspect of this invention is to provide a laser therapy device having the aforementioned light-guiding structure.

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0041] like Figure 1 and Figure 2 As shown, this embodiment of the invention discloses a light guide structure 100, including a gripping component, a working tip component, and a working tip recognition component. It should be noted that in the prior art, when using a laser therapy device for oral treatment, laser emission is only required when the working tip is inserted into the handle. However, when the working tip is not inserted, the laser therapy device cannot recognize the connection status of the working tip, which may lead to accidental activation of the switch, causing unnecessary harm to the operator and patient. This results in lower safety of the laser therapy device and increases energy consumption, reducing the product's battery life. The light guide structure provided by this invention uses a coupling element 110 on the working tip component to cooperate with a sensing coupling element 104 on the gripping component to recognize the connection status between the working tip component and the gripping component. This allows the laser therapy device to perform actions that avoid unnecessary harm to the operator and patient, thereby improving the safety of the laser therapy device.

[0042] Among them, such as Figure 2 and Figure 9 As shown, the working tip assembly is detachably connected to the gripping assembly. Specifically, the working tip assembly and the gripping assembly can be connected by means of threaded connection or snap-fit. When the working tip assembly and the gripping assembly are connected, the laser therapy device emits laser light through the gripping assembly to treat the patient. When the working tip assembly and the gripping assembly are separated, the laser therapy device detects the separation through the working tip recognition component. In this case, the laser therapy device can take actions to avoid causing unnecessary harm to the operator and the patient. For example, if the operator touches a switch, an alarm will be immediately sounded to remind the operator, thereby reducing harm to the patient and the device itself.

[0043] Furthermore, such as Figure 2As shown, the working tip recognition component includes a coupling element 110 disposed on the working tip assembly and a sensing coupling element 104 disposed on the grip assembly. The sensing coupling element 104 cooperates with the coupling element 110 to identify the connection state between the working tip assembly and the grip assembly. When the working tip assembly and the grip assembly are separated, the coupling element 110 on the working tip assembly moves away from the sensing coupling element 104. At this time, the sensing coupling element 104 recognizes that the working tip assembly and the grip assembly are separated, thereby enabling the laser therapy device to perform actions that avoid causing unnecessary harm to the operator and the patient. When the working tip assembly and the grip assembly are connected, the coupling element 110 on the working tip assembly moves closer to the sensing coupling element 104. At this time, the sensing coupling element 104 recognizes that the working tip assembly and the grip assembly are connected, thereby enabling the laser therapy device to operate normally.

[0044] In one specific embodiment, such as Figure 9 As shown, a starter 103 for emitting laser is provided on the grip assembly, and the starter 103 is linked with the inductive coupling 104. When the working tip assembly and the grip assembly are separated, the coupling element 110 on the working tip assembly moves away from the inductive coupling 104. The inductive coupling 104 detects that the working tip assembly and the grip assembly are separated, and at this time, the inductive coupling 104 issues an alarm to remind the operator that the working tip assembly and the grip assembly are separated. At the same time, the inductive coupling 104 temporarily disables the activation function of the starter 103. When the working tip assembly and the grip assembly are connected, the coupling element 110 on the working tip assembly moves closer to the inductive coupling 104. The inductive coupling 104 detects that the working tip assembly and the grip assembly are connected, and at this time, the inductive coupling 104 restores the activation function of the starter 103, thereby enabling the laser therapy device to operate normally.

[0045] The light guide structure 100 provided by this invention uses a coupling element 110 on the working tip assembly and a sensing coupling element 104 on the holding assembly, with the sensing coupling element 104 cooperating with the coupling element 110 to identify the connection state between the working tip assembly and the holding assembly. When the working tip assembly and the holding assembly are separated, the coupling element 110 on the working tip assembly moves away from the sensing coupling element 104. At this time, the sensing coupling element 104 detects that the working tip assembly and the holding assembly are separated, thereby enabling the laser therapy device to perform actions that avoid causing unnecessary harm to the operator and the patient, such as issuing an alarm or disabling the power switch. When the working tip assembly and the holding assembly are connected, the coupling element 110 on the working tip assembly moves closer to the sensing coupling element 104. At this time, the sensing coupling element 104 detects that the working tip assembly and the holding assembly are connected, thereby enabling the laser therapy device to operate normally.

[0046] Compared with the prior art, the light guide structure provided by the present invention, through the cooperation of the coupling element 110 provided on the working tip assembly and the inductive coupling element 104 provided on the holding assembly, identifies the connection state between the working tip assembly and the holding assembly, thereby enabling the laser therapy device to perform actions that avoid causing unnecessary harm to the operator and the patient, thus improving the safety of the laser therapy device.

[0047] like Figure 9 As shown, in another specific embodiment, the grip assembly includes a handle 102, a laser 105 disposed within the handle 102, and an inductive coupling element 104 disposed within the handle 102 and electrically connected to the laser 105 to control the on / off state of the laser 105. Specifically, the inductive coupling element 104 is a Hall effect device; in this embodiment, a Hall sensor is used, and the coupling element 110 is a magnet. When the working tip assembly and the gripping assembly are separated, the coupling element 110 on the working tip assembly moves away from the inductive coupling member 104. The inductive coupling member 104 detects that the working tip assembly and the gripping assembly are separated. At this time, the inductive coupling member 104 disconnects the circuit, causing the laser 105 to temporarily disable, thereby preventing the operator from accidentally activating the starter 103 and emitting a laser, which could cause harm to the operator and the patient. When the working tip assembly and the gripping assembly are connected, the coupling element 110 on the working tip assembly moves closer to the inductive coupling member 104. The inductive coupling member 104 detects that the working tip assembly and the gripping assembly are connected. At this time, the inductive coupling member 104 reconnects the circuit, allowing the laser 105 to resume function and turn on. The operator can then operate the device normally by triggering the starter 103. By promptly shutting down the laser 105 and controlling the laser to turn on when necessary, the battery life of the laser therapy device is improved. It should be noted that the Hall sensor converting the magnetic signal of the magnet into an electrical signal to realize the on / off state of the circuit is existing technology and is not the inventive point of this invention.

[0048] Furthermore, such as Figure 2 and Figure 3 As shown, in one specific embodiment, the working tip assembly includes a working tip 101 and a fixing component assembly. The working tip 101 and the fixing component assembly are detachably connected by a threaded connection or a snap-fit ​​connection. The fixing component assembly is detachably connected to the gripping component, and a coupling element 110 is disposed on the fixing component assembly. By separating the fixing component assembly with the working tip 101 from the gripping component, the coupling element 110 is moved away from the sensing coupling element 104 disposed on the gripping component. This allows the sensing coupling element 104 to detect that the working tip assembly and the gripping component are separated and to turn off the laser 105. Wherein, as... Figure 4 and Figure 5 As shown, the fastener assembly includes a fastener 108 and a limiting member 109 disposed on the fastener 108. Figure 4 As shown, the fixing member 108 is provided with a plug-in portion 1081, which is detachably disposed at the laser emission port 1051 of the laser 105. Specifically, the plug-in portion 1081 of the fixing member 108 can be installed at the laser emission port 1051 by means of threaded connection or snap-fit. In this embodiment, the plug-in portion 1081 of the fixing member 108 engages with the groove on the side wall of the laser emission port 1051 through a protrusion provided on the plug-in portion 1081, thereby realizing the connection between the fixing member 108 and the gripping assembly. The working tip 101 is provided with a snap-fit ​​portion 1011. When the working tip 101 is connected to the gripping assembly, the snap-fit ​​portion 1011 of the working tip 101 engages with the concave surface on the outer side of the limiting member 109 to prevent the working tip 101 from loosening from the fixing member assembly. It should be noted that the limiting member 109 is fixedly installed on the fixing member 108. Specifically, the limiting member 109 can be installed on the fixing member 108 by means of threaded connection or by means of adhesive.

[0049] Furthermore, such as Figure 4 As shown, the insertion portion 1081 of the fixing member 108 has a through hole 1082, and an optical fiber assembly is disposed within the through hole 1082. When the working tip 101 is connected to the holding assembly, the first end of the optical fiber assembly abuts against the working tip 101, and the second end of the optical fiber assembly is connected to the laser emission port 1051 of the laser 105, so that the laser emission port 1051 of the laser 105 emits laser light, which is transmitted to the working tip 101 through the optical fiber assembly. For example, Figure 7 and Figure 8 As shown, the optical fiber assembly includes an optical fiber 107 and an optical fiber sleeve 106 for protecting the optical fiber 107. The optical fiber 107 passes through the optical fiber sleeve 106 so that the optical fiber sleeve 106 protects the optical fiber 107, prevents the optical fiber 107 from being damaged, and thus extends the service life of the optical fiber 107.

[0050] Furthermore, such as Figure 6 As shown, in another specific embodiment, the optical fiber sleeve 106 is provided with an abutment portion 1061, such as... Figure 4 As shown, the fixing member 108 has a receiving groove 1083, the coupling element 110 is located in the receiving groove 1083, and the coupling element 110 has a first side and a second side arranged opposite to each other. A reset elastic member 111 is provided in the receiving groove 1083. The abutting portion 1061 of the optical fiber sleeve 106 abuts against the first side of the coupling element 110, the second side of the coupling element 110 abuts against the first end of the reset elastic member 111, and the second end of the reset elastic member 111 abuts against the bottom wall of the receiving groove 1083. Specifically, as shown... Figure 11As shown, when the working tip 101 is connected to the gripping assembly, the working tip 101 abuts against the first end of the fiber optic assembly, simultaneously pushing the fiber optic assembly towards the laser emission port 1051 until the locking portion 1011 of the working tip 101 engages with the concave surface on the outer side of the limiting member 109, and the second end of the fiber optic assembly connects to the laser emission port 1051 of the laser 105. While the fiber optic assembly moves towards the laser emission port 1051, the abutting portion 1061 of the fiber optic sleeve 106 pushes the coupling element 110 closer to the sensing coupling member 104 and compresses the reset elastic member 111 until the locking portion 1011 of the working tip 101 engages with the limiting member 109, so that the reset elastic member 111 is in the first state, and a first preset distance is formed between the coupling element 110 and the sensing coupling member 104. At this time, the sensing coupling member 104 recognizes that the working tip 101 is connected to the gripping assembly, and the sensing coupling member 104 activates the laser 105, allowing the operator to operate normally. Figure 10 As shown, when the working tip 101 is separated from the gripping assembly, the coupling element 110 moves away from the sensing coupling element 104 under the elastic force of the reset elastic member 111. At the same time, by pushing the abutment part 1061 of the fiber optic sleeve 106, the second end of the fiber optic assembly is disengaged from the laser emission port 1051 of the laser 105 until the abutment part 1061 of the fiber optic sleeve 106 abuts against the limiting member 109, so that the reset elastic member 111 is in the second state. A second preset distance is formed between the coupling element 110 and the sensing coupling element 104, and the second preset distance is greater than the first preset distance. At this time, the sensing coupling element 104 recognizes that the working tip 101 is separated from the gripping assembly and turns off the laser 105, thereby preventing the operator from accidentally touching the starter 103 and causing harm to the operator and the patient. At the same time, since the laser 105 consumes a lot of energy, turning off the laser 105 in time can save energy and improve the battery life of the laser therapy device. It should be noted that the first state of the reset elastic element 111 is a compressed state, the second state of the reset elastic element 111 is its initial state, and the first preset distance is the distance at which the inductive coupling element 104 can detect that the working tip 101 and the gripping component are connected, and the second preset distance is the distance at which the inductive coupling element 104 can detect that the working tip 101 and the gripping component are separated. Specifically, the first preset distance and the second preset distance need to be determined based on the recognition sensitivity of the inductive coupling element 104 and the coupling element 110.

[0051] The light guide structure 100 disclosed in this invention utilizes the Hall effect and the structure of the reset elastic element 111 to ensure that the laser can only be turned on after the working tip 101 is installed in place, and the laser automatically turns off after the working tip 101 is removed. This prevents the operator from accidentally activating the laser, thereby improving the safety of the laser therapy device. Simultaneously, it controls the laser to be turned on when necessary, improving the device's endurance. Furthermore, the light guide structure 100 disclosed in this invention has a simple and compact structure, resulting in a smaller size and a wider field of vision for the operator, making operation more convenient. Of course, the light guide structure 100 disclosed in this invention can be applied not only to laser therapy devices but also to laser products in other fields.

[0052] This invention also discloses a laser therapy device, including a light guide structure, which is the light guide structure 100 disclosed above, and therefore has all the technical effects of the light guide structure 100, which will not be repeated here.

[0053] The terms "first" and "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units may include steps or units not listed, but rather steps or units not listed.

[0054] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A light guiding structure, characterized in that, include: Holding components; The working tip assembly is detachably connected to the grip assembly; A working tip recognition component includes a coupling element (110) disposed on the working tip component and a sensing coupling element (104) disposed on the grip component. The sensing coupling element (104) cooperates with the coupling element (110) to identify the connection state between the working tip component and the grip component. The working tip component includes a working tip (101) and a fixing component assembly. The coupling element (110) is disposed on the fixing component assembly. The fixing component assembly includes a fixing element (108) and a limiting element (109) disposed on the fixing element (108). The fixing element (108) is provided with a plug-in portion (1081). The plug-in portion (1081) is detachably disposed at the position of the laser emission port (1051). The plug-in portion (1081) has a through hole (1082). A movable element is disposed in the through hole (1082). The optical fiber assembly has a first end for contacting the working tip (101) and a second end for connecting to the laser emission port (1051). The optical fiber assembly includes an optical fiber sleeve (106), an abutment portion (1061) on the optical fiber sleeve (106), a receiving groove (1083) on the fixing member (108), a coupling element (110) located in the receiving groove (1083), the coupling element (110) having a first side and a second side arranged opposite to each other, and a reset elastic member (111) provided in the receiving groove (1083). The abutment portion (1061) of the optical fiber sleeve (106) abuts against the first side of the coupling element (110), the second side of the coupling element (110) abuts against the first end of the reset elastic member (111), and the second end of the reset elastic member (111) abuts against the bottom wall of the receiving groove (1083). The grip assembly is provided with an activation element (103) for emitting laser. The activation element (103) is linked with the inductive coupling element (104). The inductive coupling element (104) is a Hall device, and the coupling element (110) is a magnet. When the working tip assembly is connected to the gripping assembly, the abutting portion of the fiber optic sleeve (106) on the working tip assembly pushes the coupling element (110) closer to the inductive coupling member (104) and compresses the reset elastic member (111), so that the reset elastic member (111) is in a first state, and a first preset distance is formed between the coupling element (110) and the inductive coupling member (104). The inductive coupling member (104) can recognize that the working tip assembly and the gripping assembly are connected, and the inductive coupling member (104) restores the opening function of the starter (103). When the working tip assembly and the gripping assembly are separated, the coupling element (110) on the working tip assembly pushes the coupling element (110) closer to the reset elastic member (111) and compresses the reset elastic member (111). 1) Under the elastic force, it moves away from the inductive coupling member (104) and pushes the abutment part (1061) of the optical fiber sleeve (106) so that the second end of the optical fiber assembly is separated from the laser emission port (1051) until the abutment part (1061) of the optical fiber sleeve (106) abuts against the limiting member (109), so that the reset elastic member (111) is in the second state, and a second preset distance is formed between the coupling element (110) and the inductive coupling member (104). The second preset distance is greater than the first preset distance. The inductive coupling member (104) can recognize that the working tip assembly and the gripping assembly are separated. The inductive coupling member (104) temporarily disables the opening function of the starter (103).

2. The light guide structure according to claim 1, characterized in that, The grip assembly includes a handle (102), a laser (105) is disposed inside the handle (102), and an inductive coupling element (104) is disposed inside the handle (102) and electrically connected to the laser (105) for controlling the opening and closing state of the laser (105).

3. The light guide structure according to claim 2, characterized in that, When the working tip assembly is connected to the gripping assembly, the inductive coupling element (104) turns on the laser (105). When the working tip assembly is separated from the gripping assembly, the inductive coupling element (104) turns off the laser (105).

4. The light guide structure according to claim 2, characterized in that, The working tip (101) is detachably connected to the fastener assembly, and the fastener assembly is connected to the grip assembly.

5. The light guide structure according to claim 4, characterized in that, The working tip (101) is provided with a snap-fit ​​part (1011), which snaps into the limiting member (109) to prevent the working tip (101) from coming loose.

6. The light guide structure according to claim 1, characterized in that, The optical fiber assembly includes an optical fiber (107) that extends through the optical fiber sleeve (106).

7. A laser therapy device, comprising a light guide structure, characterized in that, The light guide structure is the light guide structure (100) as described in any one of claims 1-6.

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