Optical coupler and laser medical equipment
By setting sensors in the optical coupler to detect the temperature of the explosion-proof plate in real time, the problem of difficult time discovering abnormal situations of the explosion-proof plate in the prior art is solved, and effective protection of the explosion-proof plate and optical devices is achieved, reducing the probability of damage.
Patent Information
- Application Number
- CN202421129687.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-20
AI Technical Summary
In the prior art, explosion-proof disks cannot be discovered in time when abnormalities occur, resulting in the optical devices that may have been damaged, increasing the difficulty of operator response.
An optical coupler is designed, including a coupler body, a fixing seat, an explosion-proof plate and a first sensor. Real-time detection of the explosion-proof plate temperature is achieved by installing the explosion-proof plate in the hollow cavity of the fixed seat and installing a first sensor at the first mounting hole of the hollow cavity.
By real-time detection of the temperature of the explosion-proof plate, abnormal situations can be discovered in time, avoiding further increase in temperature to cause damage to the explosion-proof plate or optical devices, and reducing the probability of damage to the optical devices.
Smart Images
Figure CN222506612U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of laser coupling, in particular to an optical coupler and laser medical equipment. Background Art
[0002] Laser technology is increasingly used in medical equipment, among which the optical coupler is an important component that connects the device laser and the medical optical fiber. Specifically, the optical coupler is provided with optical devices inside, and along the propagation direction of the laser beam, the optical devices may include a collimator, a beam splitter, and a focusing lens, etc., which are arranged in sequence. When used, the laser beam emitted by the laser passes through the collimator, the beam splitter, and the focusing lens in sequence and enters the medical optical fiber. Since the above-mentioned optical devices are easily damaged and are expensive, consumable devices are usually arranged between the focusing lens and the medical optical fiber as sacrificial structures, that is, an explosion-proof plate is arranged between the focusing lens and the medical optical fiber. When an abnormal situation occurs (such as unstable current), the explosion-proof plate will be the first to be damaged, thereby achieving the purpose of protecting the optical device.
[0003] However, in the prior art, after the explosion-proof disk is damaged, the operator can only discover the abnormality by observing the surface conditions or when the equipment fails to work normally. At this time, the optical device may have been damaged, resulting in an increased probability of damage to the optical device, making it impossible for the operator to respond in advance. Utility Model Content
[0004] The first object of the utility model is to provide an optical coupler to solve the technical problem in the prior art that the explosion-proof disk cannot be discovered in time when an abnormality occurs.
[0005] The optical coupler provided by the utility model is used for coupling a light beam emitted by a laser to a device. The optical coupler comprises: a coupler body, a fixing seat, an explosion-proof plate and a first sensor.
[0006] The coupler body includes a housing and an optical device mounted on the housing;
[0007] The fixing seat is fixedly connected to the housing, and the fixing seat has a hollow cavity penetrating along the direction of the light beam, and the hollow cavity can accommodate at least part of the optical device; the surrounding wall of the fixing seat is provided with a first mounting hole communicating with the hollow cavity;
[0008] The explosion-proof disk is installed in the hollow cavity and is located downstream of the optical device along the light beam direction;
[0009] The first sensor is inserted into the first mounting hole, and the first sensor is used to detect the temperature of the explosion-proof disk.
[0010] Further, the first mounting hole extends in a radial direction of the hollow cavity, and in a radial direction of the hollow cavity, the first mounting hole is opposite to the explosion-proof disk, and a sensing end of the first sensor faces the explosion-proof disk.
[0011] Furthermore, the surrounding wall of the fixing seat is also provided with a slot communicating with the hollow cavity, and the slot is used to enable the explosion-proof disk to be installed in the hollow cavity in a pluggable manner.
[0012] Furthermore, the optical coupler further comprises a bursting disk carrier, the bursting disk carrier comprises a carrier section and an insertion section, wherein the bursting disk is mounted on the carrier section, and the insertion section is plugged into and matched with the slot.
[0013] Furthermore, the carrier segment is provided with a receiving hole, the receiving hole is opposite to the optical device, and the explosion-proof plate is detachably mounted in the receiving hole.
[0014] Further, along the radial direction of the fixing seat, the first mounting hole is opposite to the slot, wherein the first mounting hole is opened at the upper part of the fixing seat, and the slot is opened at the lower part of the fixing seat.
[0015] Furthermore, the optical coupler also includes a light output connector and a second sensor, wherein the light output connector is fixedly connected to the fixing seat, and the light output connector has a core insertion channel opposite to the hollow cavity; the second sensor is installed on the light output connector, and is used to send an induction signal to the controller after the optical fiber at the output end is inserted into the core insertion channel.
[0016] Furthermore, a second mounting hole communicating with the ferrule channel is formed on the surrounding wall of the light output connector, the second sensor is inserted into the second mounting hole, and the sensing end of the second sensor faces the ferrule channel.
[0017] Further, the fixing seat is provided with a first flange structure, and the fixing seat is fixedly connected to the shell through the first flange structure; and / or, the light output connector is provided with a second flange structure, and the light output connector is fixedly connected to the fixing seat through the second flange structure.
[0018] The beneficial effects brought by the optical coupler of the utility model are:
[0019] By setting an optical coupler mainly composed of a coupler body, a fixing seat, a burst-proof disk and a first sensor, when in use, the optical coupler is connected between the laser and the device, and the burst-proof disk is set in a hollow cavity opened in the fixing seat and is located downstream of the optical device along the light beam direction. By opening a first mounting hole in communication with the hollow cavity in the fixing seat and installing the first sensor in the first mounting hole, the temperature of the burst-proof disk can be detected during the application of the optical coupler, so that the burst-proof disk can be discovered in time when it is abnormal.
[0020] Through the above-mentioned setting, the optical coupler can perform real-time temperature detection on the explosion-proof disk, so that abnormal conditions of the explosion-proof disk can be discovered in time, so that the operator can take measures in advance to avoid further increase in temperature and damage to the explosion-proof disk or even damage to the optical device. It has a good protective effect on both the explosion-proof disk and the optical device, and effectively reduces the probability of damage to the optical device.
[0021] The second purpose of the utility model is to provide a laser medical device to solve the technical problem in the prior art that the explosion-proof disk cannot be discovered in time when an abnormality occurs.
[0022] The laser medical device provided by the utility model adopts the optical coupler as mentioned above. The laser medical device also includes a display screen, which is connected to the controller of the laser medical device. The display screen is used to display an alarm signal when the temperature detected by the first sensor is higher than a preset temperature.
[0023] The beneficial effects brought by the laser medical equipment of the utility model are:
[0024] By setting the above optical coupler in the laser medical device, the laser medical device accordingly has all the advantages of the above optical coupler, which will not be described one by one here.
[0025] In addition, the setting of the display screen also allows an alarm signal to be displayed on the display screen when the temperature detected by the first sensor is higher than a preset temperature, so that the operator can see the alarm signal in a timely and intuitive manner and respond accordingly. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0027] Figure 1A partial structural exploded view of an optical coupler provided in an embodiment of the utility model;
[0028] Figure 2 A schematic diagram of the structure of an optical coupler provided in an embodiment of the utility model;
[0029] Figure 3 A schematic longitudinal cross-sectional view of an optical coupler provided in an embodiment of the utility model.
[0030] Description of reference numerals:
[0031] 100-coupler body; 200-fixing seat; 300-explosion-proof disk; 400-first sensor; 500-explosion-proof disk carrier; 600-light output connector; 700-second sensor;
[0032] 110-housing; 120-optical device;
[0033] 210 - hollow cavity; 220 - first mounting hole; 230 - slot; 240 - first flange structure;
[0034] 510-carrier section; 520-plug section; 511-accommodating hole;
[0035] 610 - insert channel; 620 - second mounting hole; 630 - second flange structure. DETAILED DESCRIPTION
[0036] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0037] The present embodiment provides an optical coupler for coupling the light beam emitted by the laser to the output optical fiber. The optical coupler of the present embodiment is mainly used in oral thulium fiber laser medical equipment. The oral thulium fiber laser medical equipment adopts UPTFLA (Ultra-pulsed Thulium Fiber Laser Ablation) technology (also known as soft tissue ablation technology) and HiFLI (High Frequency Laser Irrigation) technology (also known as apical periodontitis treatment technology), integrating minimally invasive soft tissue cutting and root canal activation irrigation. The oral thulium fiber laser medical equipment includes a laser, the above-mentioned optical coupler, and an output optical fiber. The laser emitted by the laser enters the output optical fiber after being coupled by the optical coupler. The laser from the output optical fiber can directly act on the patient, thereby performing treatment.
[0038] Figure 1A partial structural exploded view of the optical coupler provided in this embodiment; Figure 2 A schematic diagram of the structure of the optical coupler provided in this embodiment; Figure 3 Schematic diagram of the longitudinal cross section of the optical coupler provided in this embodiment. Figures 1 to 3 As shown, the optical coupler includes a coupler body 100, a fixing seat 200, a burst-proof disk 300 and a first sensor 400. Specifically, the coupler body 100 includes a housing 110 and an optical device 120 mounted on the housing 110; the fixing seat 200 is fixedly connected to the housing 110, and the fixing seat 200 has a hollow cavity 210 that passes through along the direction of the light beam, and the hollow cavity 210 can accommodate at least part of the optical device 120; the surrounding wall of the fixing seat 200 is provided with a first mounting hole 220 that is connected to the hollow cavity 210; the burst-proof disk 300 is installed in the hollow cavity 210 and is located downstream of the optical device 120 along the direction of the light beam (specifically, Figure 3 The explosion-proof disk 300 is located on the right side of the optical device 120 in the perspective view); the first sensor 400 is inserted into the first mounting hole 220, and the first sensor 400 is used to detect the temperature of the explosion-proof disk 300. It should be noted that the optical device 120 shown in the figure is only a part, and the part placed in the housing 110 is not shown. The optical device 120 generally includes a collimator, a beam splitter, and a focusing lens. In other embodiments, the optical device 120 is entirely built into the housing 110.
[0039] When used, the optical coupler is connected between the laser and the device, and the explosion-proof disk 300 is arranged in the hollow cavity 210 opened in the fixing seat 200 and is located downstream of the optical device 120 along the beam direction. By opening a first mounting hole 220 in communication with the hollow cavity 210 in the fixing seat 200 and installing the first sensor 400 in the first mounting hole 220, the temperature of the explosion-proof disk 300 can be detected during the application of the optical coupler, so that the explosion-proof disk 300 can be found in time when it is abnormal.
[0040] Through the above arrangement, the optical coupler can perform real-time temperature detection on the explosion-proof disk 300, so that abnormal conditions of the explosion-proof disk 300 can be discovered in time, so that the operator can take measures in advance to avoid further increase in temperature and damage to the explosion-proof disk 300 or even the optical device 120, thereby playing a good protective role for both the explosion-proof disk 300 and the optical device 120 and effectively reducing the probability of damage to the optical device 120.
[0041] It should be noted that, in the present embodiment, the first sensor 400 is connected to the controller of the laser medical device. During the use of the optical coupler, the first sensor 400 can output the detected temperature signal to the controller. After receiving the temperature signal transmitted by the first sensor 400, the controller compares it with the preset temperature and can control the laser medical device to send an alarm signal when the temperature is higher than the preset temperature.
[0042] Among them, how the first sensor 400 outputs the detected temperature signal to the controller of the laser medical device, and how the controller controls the laser medical device to send an alarm signal when receiving the above temperature signal and judging that it is higher than the preset temperature, are all things that can be obtained by those skilled in the art based on the prior art. They are not the focus of improvement of this embodiment, so they will not be elaborated here.
[0043] Please continue to refer to Figure 3 In this embodiment, the left side portion of the optical device 120 is installed on the housing 110 , and the right side portion of the optical device 120 is installed on the fixing base 200 .
[0044] It should be noted that, in this embodiment, the preset temperature may be 60° C. Of course, the preset temperature may also be adjusted according to the actual application of the optical coupler.
[0045] It should also be noted that, in this embodiment, the first sensor 400 may be a contact induction sensor, which detects the amount of heat radiation near the explosion-proof disk 300 to achieve the purpose of temperature detection.
[0046] Please continue to refer to Figure 1 and Figure 3 In this embodiment, the first mounting hole 220 extends radially along the hollow cavity 210 , and along the radial direction of the hollow cavity 210 , the first mounting hole 220 is opposite to the explosion-proof plate 300 , and the sensing end of the first sensor 400 faces the explosion-proof plate 300 .
[0047] Through the above arrangement, after the first sensor 400 is assembled to the fixing seat 200, the sensing end of the first sensor 400 can be closer to the explosion-proof plate 300. On the one hand, the sensing result of the first sensor 400 is more accurate, and on the other hand, the sensing of the first sensor 400 is faster, so as to prompt the operator in time.
[0048] It should be noted that, in the present embodiment, the hollow cavity 210 is substantially cylindrical, wherein the axial direction of the hollow cavity 210 is the direction of the light beam, and the radial direction of the hollow cavity 210 is the direction perpendicular to the direction of the light beam.
[0049] Please continue to refer to Figure 3In this embodiment, the surrounding wall of the fixing seat 200 is further provided with a slot 230 communicating with the hollow cavity 210 , wherein the slot 230 is used to enable the explosion-proof disk 300 to be pluggably installed in the hollow cavity 210 .
[0050] The above arrangement not only facilitates the installation of the explosion-proof disk 300 , but also allows the explosion-proof disk 300 to be taken out through the slot 230 when the explosion-proof disk 300 is damaged and needs to be replaced, thereby improving the convenience of maintenance.
[0051] Please continue to refer to Figure 1 In this embodiment, the optical coupler may further include a burst-proof disk carrier 500 . Specifically, the burst-proof disk carrier 500 includes a carrier section 510 and a plug-in section 520 , wherein the burst-proof disk 300 is mounted on the carrier section 510 , and the plug-in section 520 is plugged into and matched with the slot 230 .
[0052] By providing the explosion-proof disk carrier 500 in the optical coupler, not only can the explosion-proof disk 300 be carried by the carrier section 510 thereof, but also the plug-in section 520 thereof can be used for plug-in installation of the explosion-proof disk 300, without the need for an operator to directly hold the explosion-proof disk 300 for installation, thereby reducing contamination to the explosion-proof disk 300.
[0053] Please continue to refer to Figure 1 and Figure 3 In this embodiment, the carrier segment 510 is provided with a receiving hole 511 , wherein the receiving hole 511 is opposite to the optical device 120 , and the explosion-proof disk 300 is detachably mounted in the receiving hole 511 .
[0054] This method of installing the explosion-proof disk 300 by opening the accommodating hole 511 in the carrier segment 510 can not only ensure the assembly stability of the explosion-proof disk 300, but also protect the explosion-proof disk 300 during the process of inserting the explosion-proof disk 300 into the hollow cavity 210 through the slot 230 using the explosion-proof disk carrier 500, thereby preventing the explosion-proof disk 300 from colliding with the cavity wall of the hollow cavity 210, thereby further reducing the risk of damage to the explosion-proof disk 300.
[0055] Specifically, the explosion-proof disk 300 can be fixed in the receiving hole 511 by snapping with the carrier segment 510 .
[0056] Please continue to refer to Figure 3 In this embodiment, along the radial direction of the fixing base 200 , the first mounting hole 220 is opposite to the slot 230 , wherein the first mounting hole 220 is opened at the upper portion of the fixing base 200 , and the slot 230 is opened at the lower portion of the fixing base 200 .
[0057] This positional layout of the first mounting hole 220 and the slot 230, on the one hand, allows the first sensor 400 to be located at the upper portion of the fixing seat 200 after the first sensor 400 is assembled to the first mounting hole 220. This arrangement can provide a certain degree of protection for the first sensor 400 and reduce the risk of collision to the first sensor 400. On the other hand, the plug-in section 520 of the explosion-proof disk carrier 500 can be used as a bracket to support the coupler body 100.
[0058] Please continue to refer to Figures 1 to 3 In this embodiment, the optical coupler may further include a light output connector 600 and a second sensor 700. The light output connector 600 is fixedly connected to the fixing base 200, and the light output connector 600 has a core insertion channel 610 opposite to the hollow cavity 210; the second sensor 700 is installed on the light output connector 600, and is used to send an induction signal to the controller after the optical fiber at the output end is inserted into the core insertion channel 610.
[0059] When the output optical fiber is inserted into the core channel 610, the second sensor 700 can recognize the insertion of the output optical fiber, thereby sending a sensing signal to the controller. At this time, the controller can control the device to start, so as to achieve the purpose of linkage of the device after the output optical fiber is inserted into place.
[0060] The configuration of the optical connector 600 can realize reliable installation of the optical fiber at the output end. The configuration of the second sensor 700 can not only identify the insertion action of the optical fiber at the output end, but also realize the linkage of the equipment after the optical fiber at the output end is inserted in place, and the automation degree is high.
[0061] Please continue to refer to Figure 3 In this embodiment, the wall of the optical connector 600 is provided with a second mounting hole 620 connected to the ferrule channel 610, and the second sensor 700 is inserted into the second mounting hole 620, and the sensing end of the second sensor 700 faces the ferrule channel 610. The second mounting hole 620 may be a hole structure that penetrates the optical connector 600 in the radial direction, and after the optical fiber at the output end is inserted into the ferrule channel 610 of the optical connector 600, the light emitted by the second sensor 700 is blocked, thereby realizing the recognition of the output light.
[0062] It should be noted that how the second sensor 700 outputs the sensing signal to the controller after identifying the output optical fiber, and how the controller controls the device linkage according to the above sensing signal, can be obtained by technical personnel in this field based on the existing technology. This embodiment does not make any improvements on this, so it will not be repeated here.
[0063] It should also be noted that, in this embodiment, the "surrounding wall of the fixing base 200" is: a circle of solid structure of the fixing base 200 surrounding the hollow cavity 210; similarly, the "surrounding wall of the light output connector 600" is: a circle of solid structure of the light output connector 600 surrounding the core channel 610.
[0064] Please continue to refer to Figure 1 and Figure 2 In this embodiment, the fixing base 200 is provided with a first flange structure 240 , and the fixing base 200 is fixedly connected to the housing 110 via the first flange structure 240 .
[0065] This connection mode between the fixing base 200 and the housing 110 not only ensures the assembly reliability of the fixing base 200, but also enables the fixing base 200 to be disassembled and maintained, thereby improving the convenience of maintenance.
[0066] Please continue to refer to Figure 1 and Figure 2 In this embodiment, the light output connector 600 is provided with a second flange structure 630 , and the light output connector 600 is fixedly connected to the fixing base 200 via the second flange structure 630 .
[0067] This connection mode between the light output connector 600 and the fixing base 200 not only ensures the assembly reliability of the light output connector 600, but also enables the light output connector 600 to be disassembled and maintained, thereby improving the convenience of maintenance.
[0068] In addition, this embodiment also provides a laser medical device, which uses an optical coupler as described above. The laser medical device also includes a display screen, wherein the display screen is connected to the controller of the laser medical device, and the display screen is used to display an alarm signal when the temperature detected by the first sensor is higher than a preset temperature.
[0069] By setting the above optical coupler in the laser medical device, the laser medical device accordingly has all the advantages of the above optical coupler, which will not be described one by one here.
[0070] In addition, the setting of the display screen also allows an alarm signal to be displayed on the display screen when the temperature detected by the first sensor is higher than a preset temperature, so that the operator can see the alarm signal in a timely and intuitive manner and respond accordingly.
[0071] It should be noted that the feedback control process of how the controller controls the display screen to display an alarm signal based on the temperature signal detected by the first sensor 400 can be obtained by technical personnel in this field based on the existing technology. It is not the focus of improvement of this application, so it will not be repeated here.
[0072] Although the utility model is disclosed as above, the utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the scope defined by the claims.
[0073] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.
[0074] In the above embodiments, the descriptions of directions such as “upper”, “lower”, “left”, “right”, and “side” are all based on the drawings.
[0075] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be 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 present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An optical coupler, applied to laser medical equipment, characterized in that: The optical coupler comprises: A coupler body (100) comprises a housing (110) and an optical device (120) mounted on the housing (110); A fixing seat (200) is fixedly connected to the housing (110), the fixing seat (200) having a hollow cavity (210) extending along the direction of the light beam, the hollow cavity (210) being capable of accommodating at least a portion of the optical device (120); a first mounting hole (220) communicating with the hollow cavity (210) is formed on a surrounding wall of the fixing seat (200); a bursting disk (300) mounted in the hollow cavity (210) and located downstream of the optical device (120) along the light beam direction; and A first sensor (400) is inserted into the first mounting hole (220), and the first sensor (400) is used to detect the temperature of the explosion-proof disk (300).
2. The optical coupler according to claim 1, characterized in that The first mounting hole (220) extends in the radial direction of the hollow cavity (210), and in the radial direction of the hollow cavity (210), the first mounting hole (220) is opposite to the explosion-proof disk (300), and the sensing end of the first sensor (400) faces the explosion-proof disk (300).
3. The optical coupler according to claim 1, characterized in that The surrounding wall of the fixing seat (200) is also provided with a slot (230) communicating with the hollow cavity (210), and the slot (230) is used to enable the explosion-proof disk (300) to be installed in the hollow cavity (210) in a pluggable manner.
4. The optical coupler according to claim 3, characterized in that: The optical coupler further comprises a bursting disk carrier (500), wherein the bursting disk carrier (500) comprises a carrier section (510) and an insertion section (520), wherein the bursting disk (300) is mounted on the carrier section (510), and the insertion section (520) is plugged into and matched with the slot (230).
5. The optical coupler according to claim 4, characterized in that: The carrier segment (510) is provided with a receiving hole (511), the receiving hole (511) is opposite to the optical device (120), and the explosion-proof disk (300) is detachably mounted in the receiving hole (511).
6. The optical coupler according to claim 3, characterized in that: Along the radial direction of the fixing seat (200), the first mounting hole (220) is opposite to the slot (230), wherein the first mounting hole (220) is opened at the upper part of the fixing seat (200) and the slot (230) is opened at the lower part of the fixing seat (200).
7. The optical coupler according to claim 1, characterized in that: The optical coupler further comprises a light output connector (600) and a second sensor (700); the light output connector (600) is fixedly connected to the fixing seat (200), and the light output connector (600) has a core insertion channel (610) opposite to the hollow cavity (210); the second sensor (700) is installed on the light output connector (600) and is used to send a sensing signal to a controller after the optical fiber at the output end is inserted into the core insertion channel (610).
8. The optical coupler according to claim 7, characterized in that: The wall of the light output connector (600) is provided with a second mounting hole (620) connected to the core insertion channel (610); the second sensor (700) is inserted into the second mounting hole (620), and the sensing end of the second sensor (700) faces the core insertion channel (610).
9. The optical coupler according to claim 7, characterized in that: The fixing seat (200) is provided with a first flange structure (240), and the fixing seat (200) is fixedly connected to the housing (110) via the first flange structure (240); and / or the light output connector (600) is provided with a second flange structure (630), and the light output connector (600) is fixedly connected to the fixing seat (200) via the second flange structure (630).
10. A laser medical device using the optical coupler according to any one of claims 1 to 9, characterized in that: It also comprises a display screen, which is connected to the controller of the laser medical device and is used to display an alarm signal when the temperature detected by the first sensor (400) is higher than a preset temperature.