Firmly-mounted guide wire locking device

Abstract

The invention discloses a guide wire locking device firm in installation. The guide wire locking device comprises a shell, a first button, a second button and an elastic piece. A connector is arranged in the endoscope handle, a clamping groove is formed in the periphery of the connector, a wire locking cantilever used for being connected with a guide wire to fix the guide wire is arranged on the shell, a connecting channel allowing the connector to stretch into is further arranged in the shell, and the first button is rotationally connected to the shell. The first button is rotationally connected to the shell, the second button is rotationally connected to the shell, the first button is provided with a first clamping tongue located on one side of the connecting channel, the second button is rotationally connected to the shell, the second button is provided with a second clamping tongue located on the other side of the connecting channel, and the elastic piece is installed in the shell and abuts against the first button and the second knob. According to the endoscope guide wire, the firmness and stability of connection to an endoscope handle can be improved, the problems of looseness and displacement can be avoided, and then the guide wire can be prevented from deviating from a preset position due to displacement.

Description

Technical Field

[0001] The invention relates to a firmly installed guide wire locking device. Background Art

[0002] At present, in endoscopic surgery, a guide wire is generally inserted from the biopsy port on the endoscope handle so that the head of the guide wire reaches the predetermined position, and then other instruments are quickly sent to the predetermined position through the guide wire. When it is necessary to replace an instrument, one instrument is pulled out along the guide wire and then another instrument is inserted along the guide wire. In order to prevent the guide wire from shifting with the withdrawal and insertion of the instrument, a guide wire locking device is usually installed on the endoscope handle to fix the guide wire, thereby preventing the guide wire from shifting and causing the head of the guide wire to deviate from the predetermined position. For example, a Chinese patent with announcement number CN219814988U discloses a guide wire locking device, but the guide wire locking device is connected to the endoscope handle by a binding strap, and the binding strap connection is not firm and is prone to loosening. Therefore, the guide wire locking device is prone to shifting during use, which in turn causes the guide wire to shift, causing the head of the guide wire to deviate from the predetermined position, affecting the implementation of the operation. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a firmly installed guide wire locking device, which can improve the firmness and stability of the connection to the endoscope handle, avoid the problems of loosening and displacement, and further avoid the guide wire from shifting and deviating from the predetermined position.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a firmly installed guide wire locking device, comprising a housing, a first button, a second button and an elastic member;

[0005] The shell is provided with a wire locking cantilever for connecting with the guide wire to fix the guide wire, and the shell is also provided with a connecting channel for the connector in the endoscope handle to extend into;

[0006] The first button is rotatably connected to the housing, and the first button has a first latch located at one side of the connecting channel;

[0007] The second button is rotatably connected to the housing, and the second button has a second latch located at the other side of the connecting channel;

[0008] The elastic member is installed in the housing and respectively abuts against the first button and the second knob. When the connector is extended into the connecting channel, the first button is used to rotate to a first locking position driven by the elastic member, thereby driving the first latch tongue to snap into one end of the slot in the connector, and the second button is used to rotate to a second locking position driven by the elastic member, thereby driving the second latch tongue to snap into the other end of the slot, thereby locking the connector in the connecting channel.

[0009] Furthermore, the first button has a first pressing portion, and the first pressing portion is used to be pressed to drive the first button to overcome the elastic force of the elastic member and rotate, thereby driving the first latch tongue to exit the latch slot;

[0010] The second button has a second pressing portion, and the second pressing portion is used to be pressed to drive the second button to overcome the elastic force of the elastic member and rotate, thereby driving the second latch tongue to exit the latch slot.

[0011] Furthermore, the end of the first latch tongue has a first arc-shaped latch joint for being latched into the latch slot, and the end of the second latch tongue has a second arc-shaped latch joint for being latched into the latch slot.

[0012] Furthermore, the first latch tongue is further provided with a first guide conical surface portion located below the first arc-shaped latch joint, and the second latch tongue is further provided with a second guide conical surface portion located below the second arc-shaped latch joint.

[0013] Furthermore, a locking block and a locking groove are provided on the wire locking cantilever, and a limiting groove is provided between the locking block and the wire locking cantilever.

[0014] Furthermore, the lower end of the shell is provided with an anti-rotation pin for abutting against the outer wall of the endoscope handle to prevent the shell from rotating relative to the endoscope handle.

[0015] Further, the biopsy port in the endoscope handle is provided in the connector;

[0016] A biopsy valve is installed in the housing and is used to abut against the connector to seal the biopsy port;

[0017] The shell is also provided with a wire threading channel located above the biopsy valve.

[0018] A specific structure of the elastic member is further provided, wherein the elastic member comprises a main body, a first elastic arm and a second elastic arm;

[0019] The main body is provided with an insertion hole, and the insertion hole is sleeved on the lower end of the biopsy valve;

[0020] The first elastic arm is connected to one end of the main body, the first elastic arm abuts against the first button and is used to drive the first button to rotate toward the first locking position;

[0021] The second elastic arm is connected to the other end of the main body, and the second elastic arm abuts against the second button and is used to drive the second button to rotate toward the second locking position.

[0022] Furthermore, the lower end of the biopsy valve is provided with a step portion and a plug-in head protruding downward;

[0023] The insertion hole is sleeved on the insertion head;

[0024] The upper end surface of the main body portion abuts against the step portion;

[0025] The shell is also provided with a lower abutting portion abutting against the lower end surface of the main body and an upper abutting portion abutting against the upper end surface of the biopsy valve.

[0026] Another specific structure of the elastic member is further provided, wherein the elastic member comprises a left spring sheet and a right spring sheet, a left latch and a right latch are arranged in the shell, a left slot is arranged between the left latch and the inner wall of the shell, and a right slot is arranged between the right latch and the inner wall of the shell;

[0027] The left spring sheet comprises a left elastic arm, a left transition portion and a left abutment arm;

[0028] The left transition part is inserted into the left slot, the left abutment arm is connected to one end of the left transition part and abuts against the biopsy valve, and the left elastic arm is connected to the other end of the left transition part and abuts against the first button and is used to drive the first button to rotate to the first locking position;

[0029] The right spring sheet comprises a right elastic arm, a right transition portion and a right abutment arm;

[0030] The right transition portion is inserted into the right slot, the right abutment arm is connected to one end of the right transition portion and abuts against the biopsy valve, and the right elastic arm is connected to the other end of the right transition portion and abuts against the second button and is used to drive the second button to rotate to the second locking position.

[0031] After adopting the above technical solution, first press the first button and the second button to make the first button and the second button overcome the elastic force of the elastic member and rotate to the open state, then extend the connector into the connecting channel, then release the first button and the second button, the first button is driven by the elastic member to rotate to the first locking position and drive the first latch to snap into one end of the slot, and the second button is driven by the elastic member to rotate to the second locking position and drive the second latch to snap into the other end of the slot, thereby locking the connector in the connecting channel, so that the shell is stably and firmly connected to the connector. Then insert the guide wire into the endoscope handle, and when the head of the guide wire is inserted to the predetermined position, the tail of the guide wire is wrapped around the wire locking cantilever, so that the guide wire can be fixed and prevented from shifting. Among them, by snapping the first latch and the second latch into the slot, the connector can be firmly and reliably locked in the connecting channel, so that the shell is stably and firmly connected to the connector, thereby greatly improving the firmness and stability of the connection to the endoscope handle, avoiding the problems of looseness and displacement, and preventing the guide wire from shifting and deviating from the predetermined position. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure of the firmly installed guide wire locking device and the endoscope handle of the present invention when they are disassembled;

[0033] Figure 2 It is a schematic structural diagram of the firmly installed guide wire locking device and the endoscope handle of the present invention when assembled;

[0034] Figure 3 It is a structural schematic diagram of a firmly installed guide wire locking device of the present invention;

[0035] Figure 4 An exploded view of the assembly of a firmly installed guidewire locking device of the present invention;

[0036] Figure 5 It is a front cross-sectional view of a firmly installed guide wire locking device in Embodiment 1 of the present invention;

[0037] Figure 6 It is a schematic diagram of the internal structure of the firmly installed guide wire locking device of the present invention;

[0038] Figure 7 A right sectional view of a firmly installed guide wire locking device of the present invention;

[0039] Figure 8 is a schematic structural diagram of a second button of the present invention;

[0040] Fig. 9It is a main cross-sectional view of a firmly installed guide wire locking device in the second embodiment of the present invention. DETAILED DESCRIPTION

[0041] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0042] Embodiment 1

[0043] like Figures 1 to 8 As shown, a firmly installed guide wire locking device comprises a housing 1, a first button 2, a second button 3 and an elastic member 4;

[0044] The endoscope handle 5 is provided with a connector 6, and the outer periphery of the connector 6 is provided with a slot 7 which is recessed radially inwards;

[0045] The housing 1 is provided with a wire locking cantilever 8 for connecting with the guide wire to fix the guide wire, and the housing 1 is also provided with a connecting channel 9 for the connector 6 to extend into;

[0046] The first button 2 is rotatably connected to the housing 1, and the first button 2 has a first latch 10 located at one side of the connecting channel 9;

[0047] The second button 3 is rotatably connected to the housing 1 , and the second button 3 has a second latch 11 located at the other side of the connecting channel 9 ;

[0048] The elastic member 4 is installed in the housing 1 and respectively abuts against the first button 2 and the second knob. When the connector 6 extends into the connecting channel 9, the first button 2 is used to rotate to a first locking position driven by the elastic member 4, thereby driving the first latch 10 to snap into one end of the slot 7, and the second button 3 is used to rotate to a second locking position driven by the elastic member 4, thereby driving the second latch 11 to snap into the other end of the slot 7, thereby locking the connector 6 in the connecting channel 9.

[0049] Specifically, firstly, the first button 2 and the second button 3 are pressed to make the first button 2 and the second button 3 overcome the elastic force of the elastic member 4 and rotate to the open state, then the connector 6 is extended into the connecting channel 9, and then the first button 2 and the second button 3 are released, the first button 2 is driven by the elastic member 4 to rotate to the first locking position, thereby driving the first latch 10 to be clamped into one end of the clamping slot 7, and the second button 3 is driven by the elastic member 4 to rotate to the second locking position, thereby driving the second latch 11 to be clamped into the other end of the clamping slot 7, thereby locking the connector 6 in the connecting channel 9, thereby making the housing 1 stably and firmly connected to the connector 6. Then, the guide wire is inserted into the endoscope handle 5, and when the head of the guide wire is inserted to the predetermined position, the tail of the guide wire is wound around the wire locking cantilever 8, thereby fixing the guide wire and preventing the guide wire from shifting. Among them, by snapping the first latch 10 and the second latch 11 into the slot 7, the connector 6 can be firmly and reliably locked in the connecting channel 9, so that the housing 1 is stably and firmly connected to the connector 6, thereby greatly improving the firmness and stability of the connection to the endoscope handle 5, avoiding the problems of looseness and displacement, and preventing the guide wire from shifting and deviating from the predetermined position.

[0050] like Figures 1 to 8 As shown, the first button 2 has a first pressing portion 12, and the first pressing portion 12 is used to be pressed to drive the first button 2 to overcome the elastic force of the elastic member 4 and rotate, thereby driving the first latch tongue 10 to exit the latch slot 7;

[0051] The second button 3 has a second pressing portion 13, and the second pressing portion 13 is used to be pressed to drive the second button 3 to overcome the elastic force of the elastic member 4 and rotate, thereby driving the second latch 11 to exit the latch slot 7. Then the housing 1 can be removed.

[0052] like Figures 1 to 8 As shown, the end of the first latch tongue 10 has a first arc-shaped latch head 14 for latching into the latch slot 7, and the end of the second latch tongue 11 has a second arc-shaped latch head 15 for latching into the latch slot 7. Specifically, when the first arc-shaped latch head 14 and the second arc-shaped latch head 15 are latched into the latch slot 7, the connector 6 is confined in the connection channel 9, so that the housing 1 is locked and connected to the connector 6. Specifically, the first arc-shaped latch head 14 can increase the area of ​​the first latch tongue 10 latching into the latch slot 7, and the second arc-shaped latch head 15 can increase the area of ​​the second latch tongue 11 latching into the latch slot 7, so that the stability and firmness of confining the connector 6 in the connection channel 9 can be improved.

[0053] like Figures 1 to 8 As shown, the first latch tongue 10 is also provided with a first guiding conical portion 16 located below the first arc-shaped latch joint 14, and the second latch tongue 11 is also provided with a second guiding conical portion 17 located below the second arc-shaped latch joint 15, thereby being able to guide the connector 6 to extend into the connecting channel 9.

[0054] like Figures 1 to 8 As shown, a locking block 18 and a locking groove 19 are provided on the wire locking cantilever 8, and a limiting groove is provided between the locking block 18 and the wire locking cantilever 8; specifically, the tail end of the guide wire passes through the limiting groove and is clamped in the locking groove 19, thereby fixing and locking the tail end of the guide wire, and the limiting groove can limit the guide wire.

[0055] like Figures 1 to 8 As shown, the lower end of the housing 1 is provided with an anti-rotation pin 20 for abutting against the outer wall of the endoscope handle 5 to prevent the housing 1 from rotating relative to the endoscope handle 5; in this embodiment, two anti-rotation pins 20 are provided.

[0056] like Figures 1 to 8 As shown, the biopsy port 21 in the endoscope handle 5 is provided in the connector 6;

[0057] The housing 1 is provided with a biopsy valve 22 for abutting against the connector 6 to seal the biopsy port 21;

[0058] The housing 1 is also provided with a wire threading channel 23 located above the biopsy valve 22; specifically, the head of the guide wire passes through the wire threading channel 23 and then through the biopsy valve 22, and then extends into the biopsy port 21 and then is inserted into the endoscope handle 5, and finally the head of the guide wire is extended to a predetermined position, and then the tail of the guide wire is wound around the wire locking cantilever 8. The specific structure of the biopsy valve 22 is a prior art well known to those skilled in the art, and will not be described in detail in this embodiment.

[0059] In this embodiment, the elastic member 4 includes a main body 24, a first elastic arm 25 and a second elastic arm 26;

[0060] The main body 24 is provided with an insertion hole 27, and the insertion hole 27 is sleeved on the lower end of the biopsy valve 22;

[0061] The first elastic arm 25 is connected to one end of the main body 24, and the first elastic arm 25 abuts against the first button 2 and is used to drive the first button 2 to rotate toward the first locking position;

[0062] The second elastic arm 26 is connected to the other end of the main body 24 . The second elastic arm 26 abuts against the second button 3 and is used to drive the second button 3 to rotate toward the second locking position.

[0063] In this embodiment, the lower end of the biopsy valve 22 is provided with a step portion 28 and a downwardly protruding insertion head 29;

[0064] The insertion hole 27 is sleeved on the insertion head 29;

[0065] The upper end surface of the main body portion 24 abuts against the step portion 28;

[0066] The housing 1 is further provided with a lower abutting portion 30 abutting against the lower end surface of the main body and an upper abutting portion 31 abutting against the upper end surface of the biopsy valve 22 .

[0067] Embodiment 2

[0068] like Figures 1 to 3 , 7 to 9, another firmly installed guide wire locking device includes a housing 1, a first button 2, a second button 3 and an elastic member 4;

[0069] The endoscope handle 5 is provided with a connector 6, and the outer periphery of the connector 6 is provided with a slot 7 which is recessed radially inwards;

[0070] The housing 1 is provided with a wire locking cantilever 8 for connecting with the guide wire to fix the guide wire, and the housing 1 is also provided with a connecting channel 9 for the connector 6 to extend into;

[0071] The first button 2 is rotatably connected to the housing 1, and the first button 2 has a first latch 10 located at one side of the connecting channel 9;

[0072] The second button 3 is rotatably connected to the housing 1 , and the second button 3 has a second latch 11 located at the other side of the connecting channel 9 ;

[0073] The elastic member 4 is installed in the housing 1 and respectively abuts against the first button 2 and the second knob. When the connector 6 extends into the connecting channel 9, the first button 2 is used to rotate to a first locking position driven by the elastic member 4, thereby driving the first latch 10 to snap into one end of the slot 7, and the second button 3 is used to rotate to a second locking position driven by the elastic member 4, thereby driving the second latch 11 to snap into the other end of the slot 7, thereby locking the connector 6 in the connecting channel 9.

[0074] Specifically, firstly, the first button 2 and the second button 3 are pressed to make the first button 2 and the second button 3 overcome the elastic force of the elastic member 4 and rotate to the open state, then the connector 6 is extended into the connecting channel 9, and then the first button 2 and the second button 3 are released, the first button 2 is driven by the elastic member 4 to rotate to the first locking position, thereby driving the first latch 10 to be clamped into one end of the clamping slot 7, and the second button 3 is driven by the elastic member 4 to rotate to the second locking position, thereby driving the second latch 11 to be clamped into the other end of the clamping slot 7, thereby locking the connector 6 in the connecting channel 9, thereby making the housing 1 stably and firmly connected to the connector 6. Then, the guide wire is inserted into the endoscope handle 5, and when the head of the guide wire is inserted to the predetermined position, the tail of the guide wire is wound around the wire locking cantilever 8, thereby fixing the guide wire and preventing the guide wire from shifting. Among them, by snapping the first latch 10 and the second latch 11 into the slot 7, the connector 6 can be firmly and reliably locked in the connecting channel 9, so that the housing 1 is stably and firmly connected to the connector 6, thereby greatly improving the firmness and stability of the connection to the endoscope handle 5, avoiding the problems of looseness and displacement, and preventing the guide wire from shifting and deviating from the predetermined position.

[0075] In this embodiment, the first button 2 has a first pressing portion 12, and the first pressing portion 12 is used to be pressed to drive the first button 2 to overcome the elastic force of the elastic member 4 and rotate, thereby driving the first latch 10 to exit the latch slot 7;

[0076] The second button 3 has a second pressing portion 13, and the second pressing portion 13 is used to be pressed to drive the second button 3 to overcome the elastic force of the elastic member 4 and rotate, thereby driving the second latch 11 to exit the latch slot 7. Then the housing 1 can be removed.

[0077] In this embodiment, the end of the first latch 10 has a first arc-shaped latch head 14 for latching into the latch slot 7, and the end of the second latch 11 has a second arc-shaped latch head 15 for latching into the latch slot 7. Specifically, when the first arc-shaped latch head 14 and the second arc-shaped latch head 15 are latched into the latch slot 7, the connector 6 is confined in the connection channel 9, so that the housing 1 is locked and connected to the connector 6. Specifically, the first arc-shaped latch head 14 can increase the area of ​​the first latch 10 latching into the latch slot 7, and the second arc-shaped latch head 15 can increase the area of ​​the second latch 11 latching into the latch slot 7, so that the stability and firmness of confining the connector 6 in the connection channel 9 can be improved.

[0078] In this embodiment, the first latch tongue 10 is further provided with a first guiding conical portion 16 located below the first arc-shaped latch joint 14, and the second latch tongue 11 is further provided with a second guiding conical portion 17 located below the second arc-shaped latch joint 15, thereby guiding the connector 6 to extend into the connecting channel 9.

[0079] In this embodiment, a locking block 18 and a locking groove 19 are provided on the wire locking cantilever 8, and a limiting groove is provided between the locking block 18 and the wire locking cantilever 8; specifically, the tail end of the guide wire passes through the limiting groove and is clamped in the locking groove 19, thereby fixing and locking the tail end of the guide wire, and the limiting groove can limit the guide wire.

[0080] In this embodiment, the lower end of the shell 1 is provided with an anti-rotation pin 20 for abutting against the outer wall of the endoscope handle 5 to prevent the shell 1 from rotating relative to the endoscope handle 5; in this embodiment, two anti-rotation pins 20 are provided.

[0081] In this embodiment, the biopsy port 21 in the endoscope handle 5 is provided in the connector 6;

[0082] The housing 1 is provided with a biopsy valve 22 for abutting against the connector 6 to seal the biopsy port 21;

[0083] The housing 1 is also provided with a wire threading channel 23 located above the biopsy valve 22; specifically, the head of the guide wire passes through the wire threading channel 23 and then through the biopsy valve 22, and then extends into the biopsy port 21 and then is inserted into the endoscope handle 5, and finally the head of the guide wire is extended to a predetermined position, and then the tail of the guide wire is wound around the wire locking cantilever 8. The specific structure of the biopsy valve 22 is a prior art well known to those skilled in the art, and will not be described in detail in this embodiment.

[0084] In this embodiment, the elastic member 4 includes a left spring sheet 32 ​​and a right spring sheet 33, and a left latch 34 and a right latch 35 are provided in the housing 1. A left slot is provided between the left latch 34 and the inner wall of the housing 1, and a right slot is provided between the right latch 35 and the inner wall of the housing 1.

[0085] The left spring sheet 32 ​​includes a left elastic arm 36, a left transition portion 37 and a left abutting arm 38;

[0086] The left transition part 37 is inserted into the left slot, the left abutting arm 38 is connected to one end of the left transition part 37 and abuts against the biopsy valve 22, and the left elastic arm 36 is connected to the other end of the left transition part 37 and abuts against the first button 2 and is used to drive the first button 2 to rotate to the first locking position;

[0087] The right spring sheet 33 includes a right elastic arm 39, a right transition portion 40 and a right abutment arm 41;

[0088] The right transition part 40 is inserted into the right slot, the right abutment arm 41 is connected to one end of the right transition part 40 and abuts against the biopsy valve 22, and the right elastic arm 39 is connected to the other end of the right transition part 40 and abuts against the second button 3 and is used to drive the second button 3 to rotate to the second locking position.

[0089] In this embodiment, the housing 1 includes a left shell 42 and a right shell 43 , and the left shell 42 is connected to the right shell 43 .

[0090] In summary, firstly, the first button 2 and the second button 3 are pressed to make the first button 2 and the second button 3 overcome the elastic force of the elastic member 4 and rotate to the open state, then the connector 6 is extended into the connecting channel 9, and then the first button 2 and the second button 3 are released, the first button 2 is driven by the elastic member 4 to rotate to the first locking position, thereby driving the first latch 10 to be clamped into one end of the clamping slot 7, and the second button 3 is driven by the elastic member 4 to rotate to the second locking position, thereby driving the second latch 11 to be clamped into the other end of the clamping slot 7, thereby locking the connector 6 in the connecting channel 9, thereby making the housing 1 stably and firmly connected to the connector 6. Then, the guide wire is inserted into the endoscope handle 5, and when the head of the guide wire is inserted to the predetermined position, the tail of the guide wire is wound around the wire locking cantilever 8, thereby fixing the guide wire and preventing the guide wire from shifting. Among them, by snapping the first latch 10 and the second latch 11 into the slot 7, the connector 6 can be firmly and reliably locked in the connecting channel 9, so that the housing 1 is stably and firmly connected to the connector 6, thereby greatly improving the firmness and stability of the connection to the endoscope handle 5, avoiding the problems of looseness and displacement, and preventing the guide wire from shifting and deviating from the predetermined position.

[0091] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A firmly installed guide wire locking device, characterized in that: It comprises a housing (1), a first button (2), a second button (3) and an elastic member (4); The housing (1) is provided with a wire locking cantilever (8) for connecting with the guide wire to fix the guide wire, and the housing (1) is also provided with a connecting channel (9) for the connector (6) in the endoscope handle (5) to extend into; The first button (2) is rotatably connected to the housing (1), and the first button (2) has a first latch (10) located on one side of the connecting channel (9); The second button (3) is rotatably connected to the housing (1), and the second button (3) has a second latch (11) located on the other side of the connecting channel (9); The elastic member (4) is installed in the housing (1) and respectively abuts against the first button (2) and the second knob. When the connector (6) extends into the connecting channel (9), the first button (2) is used to rotate to a first locking position under the drive of the elastic member (4) to drive the first latch tongue (10) to snap into one end of a slot (7) in the connector (6), and the second button (3) is used to rotate to a second locking position under the drive of the elastic member (4) to drive the second latch tongue (11) to snap into the other end of the slot (7), thereby locking the connector (6) in the connecting channel (9).

2. The securely mounted guidewire locking device according to claim 1, characterized in that: The first button (2) has a first pressing portion (12), and the first pressing portion (12) is used to be pressed to drive the first button (2) to overcome the elastic force of the elastic member (4) to rotate and thereby drive the first latch tongue (10) to exit the latch slot (7); The second button (3) has a second pressing portion (13), and the second pressing portion (13) is used to be pressed to drive the second button (3) to overcome the elastic force of the elastic member (4) to rotate and thereby drive the second latch tongue (11) to exit the latch slot (7).

3. The securely mounted guidewire locking device according to claim 1, characterized in that: The end of the first latch tongue (10) has a first arc-shaped latch joint (14) for latching into the latch groove (7), and the end of the second latch tongue (11) has a second arc-shaped latch joint (15) for latching into the latch groove (7).

4. The securely mounted guidewire locking device according to claim 3, characterized in that: The first latch tongue (10) is also provided with a first guide conical surface portion (16) located below the first arc-shaped latch joint (14), and the second latch tongue (11) is also provided with a second guide conical surface portion (17) located below the second arc-shaped latch joint (15).

5. The securely mounted guidewire locking device according to claim 1, characterized in that: The wire locking cantilever (8) is provided with a locking block (18) and a locking groove (19), and a limiting groove is provided between the locking block (18) and the wire locking cantilever (8).

6. The securely mounted guidewire locking device according to claim 1, characterized in that: The lower end of the housing (1) is provided with an anti-rotation pin (20) for abutting against the outer wall of the endoscope handle (5) to prevent the housing (1) from rotating relative to the endoscope handle (5).

7. The securely mounted guidewire locking device according to claim 1, characterized in that: The biopsy port (21) in the endoscope handle (5) is arranged in the connecting head (6), and a biopsy valve (22) is installed in the housing (1) for abutting against the connecting head (6) to seal the biopsy port (21); The housing (1) is also provided with a wire threading channel (23) located above the biopsy valve (22).

8. The securely mounted guidewire locking device according to claim 7, characterized in that: The elastic member (4) comprises a main body (24), a first elastic arm (25) and a second elastic arm (26); The main body (24) is provided with an insertion hole (27), and the insertion hole (27) is sleeved on the lower end of the biopsy valve (22); The first elastic arm (25) is connected to one end of the main body (24), the first elastic arm (25) abuts against the first button (2) and is used to drive the first button (2) to rotate toward the first locking position; The second elastic arm (26) is connected to the other end of the main body (24); the second elastic arm (26) abuts against the second button (3) and is used to drive the second button (3) to rotate toward the second locking position.

9. The securely mounted guidewire locking device according to claim 8, characterized in that: The lower end of the biopsy valve (22) is provided with a step portion (28) and a downwardly protruding insertion head (29); The insertion hole (27) is sleeved on the insertion head (29); The upper end surface of the main body (24) abuts against the step portion (28); The housing (1) is also provided with a lower abutting portion (30) abutting against the lower end surface of the main body, and an upper abutting portion (31) abutting against the upper end surface of the biopsy valve (22).

10. The securely mounted guidewire locking device according to claim 7, characterized in that: The elastic member (4) comprises a left spring sheet (32) and a right spring sheet (33); a left latch (34) and a right latch (35) are provided in the housing (1); a left slot is provided between the left latch (34) and the inner wall of the housing (1); and a right slot is provided between the right latch (35) and the inner wall of the housing (1); The left spring sheet (32) comprises a left elastic arm (36), a left transition portion (37) and a left abutting arm (38); The left transition part (37) is inserted into the left slot, the left abutting arm (38) is connected to one end of the left transition part (37) and abuts against the biopsy valve (22), and the left elastic arm (36) is connected to the other end of the left transition part (37) and abuts against the first button (2) and is used to drive the first button (2) to rotate toward the first locking position; The right spring sheet (33) comprises a right elastic arm (39), a right transition portion (40) and a right abutment arm (41); The right transition part (40) is inserted into the right slot, the right abutment arm (41) is connected to one end of the right transition part (40) and abuts against the biopsy valve (22), and the right elastic arm (39) is connected to the other end of the right transition part (40) and abuts against the second button (3) and is used to drive the second button (3) to rotate toward the second locking position.

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