Coupler and medical equipment

Abstract

The invention discloses a coupler and medical equipment, and relates to the technical field of medical instruments. The coupler comprises a coupling shell, a primary adjusting mechanism, a secondary adjusting mechanism and a plurality of lenses, a coupling cavity, an input port and an output port are formed in the coupling shell, the input port is suitable for connecting a light source, and the output port is suitable for connecting the input end of the optical fiber conduit; the positions of the coupling shell in the first direction and the second direction at least can be adjusted under the driving of the primary adjusting mechanism; the plurality of lenses are respectively arranged in the coupling cavity, and the positions of the lenses in the first direction and the second direction can be at least adjusted under the driving of the secondary adjusting mechanism. According to the invention, the structure of the coupler is improved, and a secondary coupling adjustment structure is adopted, so that the problem of poor alignment precision of the laser output by the laser and the optical fiber conduit after coupling is effectively solved, and the coupling efficiency and accuracy are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a coupler and medical equipment. Background Art

[0002] The laser ablation device includes a laser generator, a coupler and an optical fiber catheter, wherein the coupler mainly includes a shell and a lens combination arranged in the shell, the input end of the coupler is connected to the output end of the laser generator, and the output end of the coupler is connected to the optical fiber catheter.

[0003] However, the existing coupler and the optical fiber catheter are generally connected through a plug and fixed by screws. After assembly, the position of the lens combination in the coupler is fixed, and the relative position of the output end of the coupler and the laser entrance hole of the optical fiber catheter is also fixed. However, the size of the laser entrance hole is relatively small, with a diameter of about 0.66 mm. It is difficult to directly align the light output hole at the output end of the coupler with the laser entrance hole of the optical fiber catheter during assembly. Once the assembly position deviates, the light emitted by the coupler cannot be shot into the laser entrance hole of the optical fiber catheter according to the predetermined trajectory, which greatly affects the efficiency and accuracy of the laser output energy. Summary of the invention

[0004] The main purpose of the present invention is to provide a coupler and a medical device, aiming to improve the efficiency and accuracy of laser output energy.

[0005] To achieve the above object, the present invention provides a coupler, comprising: A coupling housing is formed with a coupling cavity and an input port and an output port respectively connected to the coupling cavity, wherein the input port is suitable for connecting to a light source, and the output port is suitable for connecting to an input end of an optical fiber conduit; A primary adjustment mechanism, the coupling housing is arranged on the primary adjustment mechanism, and the position of the coupling housing can be adjusted at least in a first direction and a second direction under the drive of the primary adjustment mechanism; A secondary adjustment mechanism, disposed on the coupling housing; and A plurality of lenses are respectively arranged in the coupling cavity, at least one of the lenses is connected to the secondary adjustment mechanism, and the position of the lens in at least the first direction and the second direction can be adjusted under the drive of the secondary adjustment mechanism; The first direction is the height direction of the coupling housing, and the second direction is the radial direction of the output port.

[0006] Optionally, the one-time adjustment mechanism includes a support member, a sliding member, a lifting member, a first locking member and a second locking member, the support member is suitable for being installed on a mounting plate of the light source, the sliding member is slidably arranged on the support member along the second direction and is locked by the first locking member, and the lifting member is movably arranged on the sliding member along the first direction and is connected by the second locking member.

[0007] Optionally, the secondary adjustment mechanism includes a first pushing component and a second pushing component; the first pushing component is inserted into the coupling shell and directly or indirectly abuts against a first side edge of the lens near the output port, so as to push the lens to move along a first direction under the drive of an external force; the second pushing component is inserted into the coupling shell and directly or indirectly abuts against a second side edge of the lens near the output port, so as to push the lens to move along a second direction under the drive of an external force.

[0008] Optionally, the first pushing component and the second pushing component are both hand-tightened adjustment screws.

[0009] Optionally, the coupling shell includes a base, an upper cover and a fixed block, the upper cover is arranged on the base and surrounds the coupling cavity, the input port and the output port, the fixed block is arranged at the output port and surrounds the base to form a plug interface connected to the output port, and the plug interface is suitable for plugging in a plug.

[0010] Optionally, a buckle groove is provided on the inner wall of the plug interface, and the buckle groove is suitable for buckling and matching with the buckle on the plug.

[0011] Optionally, two opposite inner walls of the plug interface are provided with guiding inclined surfaces, and the inclinations of the two guiding inclined surfaces are adapted to match the inclinations of two opposite outer side walls of the plug insertion end.

[0012] Optionally, the coupler further comprises a position sensor, which is disposed at the plug interface and is used to detect whether a plug inserted into the plug interface is properly plugged in.

[0013] Optionally, the coupler further comprises a wireless communication module disposed on the coupling housing, wherein the wireless communication module is electrically connected to the position sensor and is used to establish wireless communication with an external device.

[0014] To achieve the above object, the present invention further provides a medical device, comprising: light source; The coupler as described above, wherein the input port of the coupler is connected to the light source; and An optical fiber conduit, the input end of which is connected to the output port of the coupler; The coupler comprises: A coupling housing is formed with a coupling cavity and an input port and an output port respectively connected to the coupling cavity, wherein the input port is suitable for connecting to a light source, and the output port is suitable for connecting to an input end of an optical fiber conduit; A primary adjustment mechanism, the coupling housing is arranged on the primary adjustment mechanism, and the position of the coupling housing can be adjusted at least in a first direction and a second direction under the drive of the primary adjustment mechanism; A secondary adjustment mechanism, disposed on the coupling housing; and A plurality of lenses are respectively arranged in the coupling cavity, at least one of the lenses is connected to the secondary adjustment mechanism, and the position of the lens in at least the first direction and the second direction can be adjusted under the drive of the secondary adjustment mechanism; The first direction is the height direction of the coupling housing, and the second direction is the radial direction of the output port.

[0015] In the technical solution of the present invention, the coupler includes a coupling shell, a primary adjustment mechanism, a secondary adjustment mechanism and a plurality of lenses; the coupling shell is formed with a coupling cavity and an input port and an output port respectively connected to the coupling cavity, the input port is suitable for connecting a light source, and the output port is suitable for connecting an input end of an optical fiber conduit; the coupling shell is arranged on the primary adjustment mechanism, and the position of the coupling shell can be adjusted at least in a first direction and a second direction under the drive of the primary adjustment mechanism; the secondary adjustment mechanism is arranged on the coupling shell; a plurality of lenses are respectively arranged in the coupling cavity, at least one lens is connected to the secondary adjustment mechanism, and the position of the lens can be adjusted at least in the first direction and the second direction under the drive of the secondary adjustment mechanism; wherein the first direction is the height direction of the coupling shell, and the second direction is the radial direction of the output port. It can be understood that the present invention improves the structure of the coupler. By adopting a secondary coupling adjustment structure, the primary adjustment mechanism can adjust the height position and horizontal position of the coupler main structure during the process of connecting the coupler and the light source, thereby aligning the input port of the coupler with the output end of the light source, and the secondary adjustment mechanism can further fine-tune the height position and horizontal position of the lens inside the coupler, so that the light passing through the coupler lens can be accurately emitted to the laser incident hole of the optical fiber conduit after passing through the output port, effectively solving the problem of poor alignment accuracy between the laser output of the laser and the optical fiber conduit after coupling, and greatly improving the coupling efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention 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 described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of an embodiment of a medical device of the present invention; Figure 2 An exploded view of an embodiment of a medical device of the present invention; Figure 3 It is a structural schematic diagram of an embodiment of a coupler of the present invention; Figure 4 An exploded view of an embodiment of a coupler of the present invention; Figure 5 A schematic diagram of the internal structure of a coupler according to an embodiment of the present invention; Figure 6 It is a structural schematic diagram of a base in an embodiment of a coupler of the present invention; Figure 7 It is a structural schematic diagram of a fixing block in an embodiment of a coupler of the present invention; Figure 8 FIG. 1 is a schematic diagram of the structure of an optical fiber catheter in an embodiment of the medical device of the present invention.

[0018] Description of Figure Numbers: 100, coupler; 200, optical fiber conduit; 300, metal tube; 10, coupling shell; 20, primary adjustment mechanism; 30, secondary adjustment mechanism; 40, lens; 10a, coupling cavity; 10b, input port; 10c, output port; 21, support member; 22, sliding member; 23, lifting member; 24, first locking member; 25, second locking member; 31, first pushing member; 32, second pushing member; 11, base; 12, upper cover; 13, fixing block; 10d, plug interface; 13a, buckle groove; 210, plug; 211, buckle; 111, guide slope; 14, position sensor; 15, guide seat; 15a, guide channel; 50, wireless communication module.

[0019] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0024] The present invention provides a coupler that can be applied to medical equipment fields such as laser ablation systems, and can also be applied to other fields, which are not limited here.

[0025] Reference Figures 1 to 4In one embodiment of the present invention, the coupler 100 includes a coupling housing 10, a primary adjustment mechanism 20, a secondary adjustment mechanism 30 and a plurality of lenses 40; the coupling housing 10 is formed with a coupling cavity 10a and an input port 10b and an output port 10c respectively connected to the coupling cavity 10a, the input port 10b is suitable for connecting a light source device such as a laser generator through a metal tube 300, etc., and the output port 10c is suitable for connecting the input end of the optical fiber conduit 200; the coupling housing 10 is arranged on the primary adjustment mechanism 20, and the position of the coupling housing 10 can be adjusted at least in a first direction and a second direction under the drive of the primary adjustment mechanism 20; the secondary adjustment mechanism 30 is arranged on the coupling housing 10; a plurality of lenses 40 are respectively arranged in the coupling cavity 10a, at least one lens 40 is connected to the secondary adjustment mechanism 30, and the position of the lens 40 can be adjusted at least in the first direction and the second direction under the drive of the secondary adjustment mechanism 30; wherein the first direction is the height direction of the coupling housing 10, and the second direction is the radial direction of the output port 10c.

[0026] In this embodiment, the coupling housing 10 includes two or more outer shells, and a plurality of inner shells may be arranged inside, or no inner shell may be arranged, which is not specifically limited here.

[0027] Both the primary adjustment mechanism 20 and the secondary adjustment mechanism 30 may adopt a manual adjustment structure and / or an automatic adjustment structure, which is not limited here.

[0028] The number of lenses 40 can be one, two or more, and some or all of the lenses 40 can be connected to each other or all can be independently arranged. Generally, a combination of lenses 40 with different functions is selected to realize the coupling function, which can be a collimator, a focusing lens, etc., which are not limited here. In addition, other optical devices can be arranged inside the coupler 100, which can be arranged according to the specific coupling scenario.

[0029] It can be understood that the present invention improves the structure of the coupler 100. By adopting a secondary coupling adjustment structure, the primary adjustment mechanism 20 can adjust the height position and horizontal position of the main structure of the coupler 100 during the process of connecting the coupler 100 and the light source, thereby aligning the input port 10b of the coupler 100 with the light output end of the light source (i.e., the metal tube 300), and the secondary adjustment mechanism 30 can further fine-tune the height position and horizontal position of the lens 40 inside the coupler 100, so that the light passing through the lens 40 of the coupler 100 can be accurately emitted to the laser incident hole of the optical fiber conduit 200 after passing through the output port 10c, effectively solving the problem of poor alignment accuracy between the laser output by the laser and the optical fiber conduit 200 after coupling, and greatly improving the coupling efficiency and accuracy.

[0030] In order to manually adjust the height and horizontal position of the coupling body, further improve the alignment between the input port 10b of the coupler 100 and the light output end of the light source, thereby further improving the coupling efficiency and accuracy, combined with Figures 1 to 5 In one embodiment, the primary adjustment mechanism 20 may include a support member 21, a sliding member 22, a lifting member 23, a first locking member 24 and a second locking member 25. The support member 21 is suitable for being installed on a mounting plate of the light source. The sliding member 22 is slidably arranged on the support member 21 along the second direction and is locked by the first locking member 24. The lifting member 23 is movably arranged on the sliding member 22 along the first direction and is connected by the second locking member 25.

[0031] In this embodiment, the first locking member 24 and the second locking member 25 can both be hand screws that can manually adjust the tightness, etc., which are not limited here. Correspondingly, the threaded connection between the sliding member 22 and the supporting member 21 can be provided with a waist-shaped hole extending along the second direction, and the threaded connection between the lifting member 23 and the sliding member 22 can be provided with a waist-shaped hole extending along the first direction, so that the height position and horizontal position of the coupling body can be adjusted by manually adjusting the tightness of the hand screws and moving the position of the components, which is simple and convenient to operate and has low cost.

[0032] In order to manually fine-tune the height and horizontal position of the lens 40, further improve the alignment between the emitted light of the coupler 100 and the laser incident hole of the optical fiber conduit 200, so as to further improve the coupling efficiency and accuracy, refer to Figure 3 and Figure 4 In one embodiment, the secondary adjustment mechanism 30 may include a first pushing component 31 and a second pushing component 32; the first pushing component 31 is inserted into the coupling shell 10 and directly or indirectly abuts against a first side edge of one of the lenses 40 near the output port 10c, so as to push the lens 40 to move along the first direction under the drive of an external force; the second pushing component 32 is inserted into the coupling shell 10 and directly or indirectly abuts against a second side edge of the lens 40 near the output port 10c, so as to push the lens 40 to move along the second direction under the drive of an external force.

[0033] In this embodiment, both the first pushing member 31 and the second pushing member 32 can be hand-tightened adjustment screws, etc., which is not limited here.

[0034] Preferably, the present embodiment uses two lenses 40, one lens 40 is fixed in position and is disposed near one end of the input port 10b, and the two sides of the other lens 40 are respectively abutted against the first pushing component 31 and the second pushing component 32, and the position can be finely adjusted. The fixing frames of the two lenses 40 can be connected by a number of connecting rods.

[0035] In one embodiment, if Figures 3 to 7The coupling housing 10 may include a base 11, an upper cover 12 and a fixing block 13. The upper cover 12 is disposed on the base 11 and surrounds a coupling cavity 10a, an input port 10b and an output port 10c. The fixing block 13 is disposed at the output port 10c and surrounds the base 11 to form a plug interface 10d connected to the output port 10c. The plug interface 10d is suitable for plugging in a plug 210.

[0036] In this embodiment, the base 11 mainly supports components such as the lens 40 and forms structures such as the inner cavity, the input port 10b and the output port 10c. The first pushing member 31 can be arranged on the top surface of the upper cover 12 and extend into the coupling cavity 10a, and the second pushing member 32 can be arranged at the connection between the side surface of the upper cover 12 and the base 11 and extend into the coupling cavity 10a.

[0037] In this embodiment, a compression spring is provided on the outer wall of the fixing block 13 opposite to the base 11, that is, the fixing block 13 is a mounting seat for the compression spring, and the compression spring is used to compress the insertion end of the plug 210 on the base 11. Such a configuration can effectively improve the reliability of the plug connection between the plug of the optical fiber conduit 200 and the plug interface 10d, and help improve the stability of the laser output energy.

[0038] In order to further improve the reliability of the plug connection between the optical fiber conduit 200 and the plug interface 10d and ensure the stability of the laser output energy, the main reference is Figure 1 , Figure 2 , Figures 5 to 8 Based on the above embodiment, a buckle groove 13 a may be provided on the inner wall of the plug port 10 d , and the buckle groove 13 a is suitable for buckling and matching with the buckle 211 on the plug 210 .

[0039] Furthermore, refer to Figures 6 to 8 The two opposite inner walls of the plug interface 10d may be provided with guide slopes 111, and the inclination of the two guide slopes 111 is suitable for matching the inclination of the two opposite outer walls of the insertion end of the plug 210. This arrangement can facilitate the insertion of the plug 210 into the plug interface 10d, thereby improving the convenience of operation.

[0040] like Figure 1 , Figure 5 and Figure 8 As shown, in this embodiment, the plug 210 may include a plug body and an elastic arm disposed on the plug body, the elastic arm is partially suspended, the buckle 211 is disposed on one end of the elastic arm, and a pressing portion is disposed on the other end of the elastic arm, the pressing portion is exposed outside the plug interface 10d and is used to drive the buckle 211 to disengage from the clamping groove under the drive of an external force. In this way, the reliability of the buckle 211 clamping in the clamping groove can be ensured, and the plug 210 can be easily removed.

[0041] Main reference Figure 4 and Figure 5 In one embodiment, the coupler 100 may further include a position sensor 14, which is disposed at the plug interface 10d and is used to detect whether the plug 210 inserted into the plug interface 10d is plugged in place. It is not difficult to understand that the present invention can greatly ensure the reliability of the connection between the coupler 100 and the optical fiber conduit 200 by arranging the position sensor 14 to detect whether the plug 210 is plugged in place, and can ensure the stability and accuracy of the laser output energy.

[0042] In addition, to realize wireless communication function, refer to Figures 3 to 5 In one embodiment, the coupler 100 may further include a wireless communication module 50 disposed on the coupling housing 10. The wireless communication module 50 is electrically connected to the position sensor 14 and is used to establish wireless communication with an external device, so that the position signal can be sent to the host computer in a wireless transmission manner to prompt the user of the current connection status of the optical fiber catheter 200 and the coupler 100. It can also realize the transmission of other signals, such as control signals. The user remotely sends a control signal command to control the operation of the primary adjustment mechanism 20, the secondary adjustment mechanism 30 (when an electric adjustment mechanism is used) or other functional devices.

[0043] In this embodiment, the wireless communication module 50 may adopt at least one of an RF module, a Bluetooth module, a WIFI module, and a 2G / 3G / 4G / 5G module.

[0044] Reference Figure 3 and Figure 4 In this embodiment, the coupling housing 10 may further include a guide seat 15 disposed at the plug-in port 10d, the guide seat 15 is provided with a guide channel 15a communicating with the plug-in port 10d, the position sensor 14 is disposed between the guide seat 15 and the sides of the base 11 and the upper cover 12, and the guide channel 15a is mainly used to guide the plug to be inserted to the target position. The position sensor 14 is provided with a receiving port, and two position sensors 14 are provided, and the two position sensors 14 are respectively clamped on both sides of the plug-in port 10d through their receiving ports. The position sensor 14 can be an optical position sensor having a transmitter and a receiver, and its transmitter and receiver are respectively located on both sides of the receiving port. The base 11 and the upper cover 12 are both provided with through holes corresponding to the positions, and the position of at least one group of through holes is suitable for corresponding to the notch position on the plug of the optical fiber conduit 200 when it is plugged in place, so that the light emitted by the transmitter of the position sensor 14 passes through and is received by the receiver. This arrangement realizes the accurate detection of whether the insertion position of the plug 210 is at the target position, which greatly improves the accuracy of energy output.

[0045] Reference Figures 1 to 5In one embodiment, the position sensor 14 may include a detection circuit and at least one indicator light electrically connected to the detection circuit, and the indicator light is used to indicate whether the plug 210 of the optical fiber catheter 200 is plugged in place.

[0046] The base 11 and the fixing block 13 of the coupling housing 10 may be provided with corresponding through holes, wherein the position of one group of through holes is suitable to correspond to the position of the notch on the plug 210 of the optical fiber conduit 200 when it is plugged in place, so that the light emitted by the transmitter of the position sensor 14 can pass through and be received by the receiver.

[0047] Specifically, the present embodiment is provided with two position sensors 14, two indicator lights, and a gap; it can be configured as follows: when one indicator light is on and one indicator light is off, the plug 210 and the coupler 100 are in a plugged-in state; when both indicator lights are on, the plug 210 is not inserted; when both indicator lights are off, the plug 210 is not plugged in.

[0048] In the first case, when one indicator light is on and the other indicator light is off, it indicates that the light emitted by the transmitter of one of the position sensors 14 can be received by the receiver through the notch on the inserted plug 210, and the indicator light of the position sensor 14 is in the lit state. Since only one notch is provided, the light emitted by the transmitter of the other position sensor 14 is blocked by the plug 210 that is plugged in and cannot be received by the receiver, and the indicator light of the position sensor 14 is in the off state. At this time, the plug 210 and the coupler 100 are in the plugged in state.

[0049] In the second case, when both indicator lights are on, it indicates that the light emitted by the transmitters of the two position sensors 14 is received by the corresponding receivers, and the location in the plug interface 10d is not blocked by the plug 210. At this time, the plug 210 is not inserted (including the case where only a small part of the plug 210 is inserted. In this case, the plug 210 is very loose and can easily fall out).

[0050] In the third case, both indicator lights are off, indicating that the light emitted by the transmitters of the two position sensors 14 is not received by the corresponding receivers, the notch of the plug 210 is not in a position corresponding to the through hole, and the position in the plug interface 10d is blocked by the plug 210. At this time, the plug 210 is not fully inserted.

[0051] The present invention also provides a medical device, referring to Figure 1 and Figure 2In one embodiment of the present invention, the medical device includes a coupler 100, an optical fiber catheter 200 and a light source, wherein the specific structure of the coupler 100 refers to the above embodiment. Since the medical device proposed by the present invention includes all schemes of all embodiments of the above coupler 100, it has at least the same technical effects as the above coupler 100, which are not elaborated here one by one.

[0052] In this embodiment, the input port 10b of the coupler 100 is connected to a light source such as a laser generator through a metal tube 300, and the input end of the optical fiber conduit 200 is plugged into the output port 10c of the coupler 100 through a plug 210. In this way, there is no need to set additional screws for connection, which saves costs and greatly improves the convenience of operation.

[0053] The above descriptions are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A coupler, characterized in that: include: A coupling housing is formed with a coupling cavity and an input port and an output port respectively connected to the coupling cavity, wherein the input port is suitable for connecting to a light source, and the output port is suitable for connecting to an input end of an optical fiber conduit; A primary adjustment mechanism, the coupling housing is arranged on the primary adjustment mechanism, and the position of the coupling housing can be adjusted at least in a first direction and a second direction under the drive of the primary adjustment mechanism; A secondary adjustment mechanism is provided on the coupling housing; as well as A plurality of lenses are respectively arranged in the coupling cavity, at least one of the lenses is connected to the secondary adjustment mechanism, and the position of the lens in at least the first direction and the second direction can be adjusted under the drive of the secondary adjustment mechanism; The first direction is the height direction of the coupling housing, and the second direction is the radial direction of the output port.

2. The coupler according to claim 1, characterized in that The one-time adjustment mechanism includes a supporting member, a sliding member, a lifting member, a first locking member and a second locking member. The supporting member is suitable for being installed on the mounting plate of the light source. The sliding member is slidably arranged on the supporting member along the second direction and is locked by the first locking member. The lifting member is movably arranged on the sliding member along the first direction and is connected by the second locking member.

3. The coupler according to claim 2, characterized in that The secondary adjustment mechanism includes a first pushing component and a second pushing component; the first pushing component is inserted into the coupling shell and directly or indirectly abuts against a first side edge of the lens near the output port, so as to push the lens to move along a first direction under the drive of an external force; the second pushing component is inserted into the coupling shell and directly or indirectly abuts against a second side edge of the lens near the output port, so as to push the lens to move along a second direction under the drive of an external force.

4. The coupler according to claim 3, characterized in that The first pushing component and the second pushing component are both hand-tightening adjustment screws.

5. The coupler according to claim 1, characterized in that The coupling shell includes a base, an upper cover and a fixed block. The upper cover is arranged on the base and surrounds the coupling cavity, the input port and the output port. The fixed block is arranged at the output port and surrounds the base to form a plug interface connected with the output port. The plug interface is suitable for plugging in a plug.

6. The coupler according to claim 5, characterized in that A buckle groove is arranged on the inner wall of the plug port, and the buckle groove is suitable for buckling and matching with the buckle on the plug.

7. The coupler according to claim 5, characterized in that The two opposite inner walls of the plug interface are both provided with guiding inclined surfaces, and the inclinations of the two guiding inclined surfaces are adapted to the inclinations of the two opposite outer side walls of the plug insertion end.

8. The coupler according to claim 5, characterized in that The coupler also includes a position sensor, which is arranged at the plug interface and is used to detect whether the plug inserted into the plug interface is plugged in place.

9. The coupler according to claim 8, characterized in that The coupler further comprises a wireless communication module disposed on the coupling housing, wherein the wireless communication module is electrically connected to the position sensor and is used to establish wireless communication with an external device.

10. A medical device, characterized in that: include: light source; The coupler according to any one of claims 1 to 9, wherein the input port of the coupler is connected to the light source; as well as An optical fiber conduit, the input end of which is connected to the output port of the coupler.

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