Special lymph node removing scissors for single-micropore assisted tiny single-hole thoracoscope technology

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a pair of special lymph node removing scissors for a single-micropore-assisted tiny single-hole thoracoscope technology, which comprises a cylinder body and a hand support, the telescopic mechanism is arranged in the cylinder body and the hand support; an angle adjusting mechanism; and a limiting mechanism. The second handle of the telescopic mechanism rotates to drive the first blade and the second blade to be opened and closed and extend out of the cylinder or retract into the cylinder, and when the first blade and the second blade retract into the cylinder, damage to other tissue in the chest is reduced; the moving stroke of a second sliding rod can be adjusted through a first wedge-shaped block and a second wedge-shaped block which slide relatively in the angle adjusting mechanism, so that the maximum opening angle of the first blade and the second blade is adjusted, and the situation that other tissues which do not need to be removed are damaged due to the fact that the opening angle of the first blade and the second blade is too large is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the medical instrument technical field, specifically relates to a single micropore auxiliary little single hole thoracoscope technology special lymph node removing scissors. BACKGROUND

[0002] Single micropore auxiliary little single hole thoracoscope technology is a kind of minimally invasive surgical technique, by making a very small incision in the chest of patient, with the help of special surgical instruments and camera system to carry out the operation in thoracic cavity.The scissors used for this technology are generally long, and two ends are respectively provided with handle and blade, when using, operator stretches the end with blade into the thoracic cavity of patient, rotates handle, and handle drives two blades to interlace each other, so that blade removes lymph node and other tissues.

[0003] The existing single micropore auxiliary little single hole thoracoscope technology special lymph node removing scissors in the use process, before removing lymph node, blade is generally exposed outside, can cause blade to damage other tissues in thoracic cavity, reliability is insufficient, and the maximum opening angle of blade is generally fixed, difficult to adjust, and when opening angle is too large, blade can damage other tissues that do not need to be removed, and convenience is insufficient. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a single micropore auxiliary little single hole thoracoscope technology special lymph node removing scissors, can drive first blade and second blade to open and close and stretch out the outside or contract to the inside of cylinder by the rotation of the second handle of telescopic mechanism, when first blade and second blade contract to the inside of cylinder, reduce the condition that other tissues in thoracic cavity are damaged, and the movement stroke of second slide bar can be adjusted by the first wedge and second wedge of angle adjusting mechanism relative sliding, so as to adjust the maximum angle of first blade and second blade opening, reduce the condition that first blade and second blade open angle are too large and cause damage to other tissues that do not need to be removed.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A single micropore auxiliary little single hole thoracoscope technology special lymph node removing scissors, including cylinder, still include:

[0007] Hand support, the hand support is arranged at one end of cylinder, the hand support includes the casing fixedly connected at one end of cylinder, the casing is fixedly connected with first handle in it;

[0008] A telescopic mechanism is provided inside the cylinder and the hand rest. The telescopic mechanism includes a first slide rod and a second slide rod slidably connected in the cylinder. A first blade and a second blade are provided at the end of the cylinder away from the hand rest. The second blade is rotatably connected to the first blade. The first blade is fixedly connected to the first slide rod. The second blade is slidably connected to the second slide rod. A push plate is fixedly connected at the end of the second slide rod away from the second blade. A first spring is connected between the push plate and the first slide rod. A push block is slidably engaged at the end of the first slide rod away from the first blade. A second handle is provided on one side of the first handle. The second handle is rotatably connected to the inner wall of the housing. A torsion spring is connected between the second handle and the housing. The end of the second handle is slidably connected to the push block.

[0009] An angle adjustment mechanism is provided on a first slide rod for adjusting the maximum opening angle of the first blade and the second blade. The angle adjustment mechanism includes a connecting block disposed on the side of the push plate near the second blade. The connecting block is fixedly installed on the first slide rod. A first wedge block is slidably installed inside the connecting block. A second wedge block is disposed on the side of the first wedge block away from the push plate. The second wedge block is fixedly connected to the second slide rod. The first wedge block and the second wedge block are slidably engaged.

[0010] A limiting mechanism is provided in the housing to limit the first slide rod and the second handle. The limiting mechanism includes a limiting rod rotatably connected to the inner wall of the housing. The lower end of the limiting rod abuts against the second handle. A limiting block is fixedly connected to the first slide rod. One side of the limiting block abuts against the upper end of the limiting rod. A limiting post is provided on the other side of the limiting block. The limiting post is fixedly connected to the inner wall of the housing.

[0011] When the second handle is rotated, it drives the first slide rod to move, causing the first and second blades to extend out of the cylinder. The first spring drives the first and second blades to open. When the second handle continues to rotate, it drives the push block to push the push plate, causing the first and second blades to close.

[0012] A stop block is fixedly connected to the end of the first slide rod away from the first blade. The push block is slidably engaged with the first slide rod. A protrusion is slidably connected inside the push block. A second spring is connected between the protrusion and the inner wall of the push block. A groove is opened inside the stop block, and the groove is engaged with the protrusion.

[0013] A connecting rod is provided on the side of the push plate near the second blade. The connecting rod is fixedly connected to the first slide rod and slidably connected to the second slide rod. The two ends of the first spring are fixedly connected to the push plate and the connecting rod, respectively.

[0014] The connecting block is fixedly connected to the connecting rod. The first wedge block is slidably engaged with the connecting block. A third spring is connected between the inner wall of the first wedge block and the connecting block. A first screw is fixedly connected to the end of the first wedge block away from the second wedge block. The first screw is threadedly engaged with the connecting block. A first inclined surface is provided on the side of the first wedge block near the second wedge block. A second inclined surface is provided on the side of the second wedge block near the first wedge block. The first inclined surface and the second inclined surface are slidably engaged.

[0015] An adjusting rod is slidably connected inside the limiting rod, and a second screw is fixedly connected to the end of the adjusting rod away from the limiting rod. The second screw is threadedly connected to the inner wall of the housing.

[0016] The outer surfaces of the first and second blades are curved.

[0017] The technical effects achieved by this utility model are as follows:

[0018] The telescopic mechanism of this invention can open and close the first and second blades by rotating the second handle, allowing them to extend outside the cylinder or retract inside. When the first and second blades retract inside the cylinder, the damage to other tissues in the thoracic cavity caused by the first and second blades is reduced, thus improving reliability. After the second handle is rotated, the first and second blades are extended via the first slide rod. The first spring drives the second blade to rotate outward via the push plate and the second slide rod, opening the first and second blades. As the second handle continues to rotate, the push block slides along the first slide rod and pushes the push plate, causing the second blade to close with the first blade to remove the lymph nodes.

[0019] The angle adjustment mechanism of this invention can adjust the travel of the second slide rod by adjusting the relative sliding first and second wedge blocks, thereby adjusting the maximum opening angle of the first and second blades. After the first wedge block slides along the connecting block, the position of the second wedge block abutting against the first wedge block is adjusted, so that the maximum travel of the second slide rod relative to the first slide rod away from the second blade increases or decreases. This increases or decreases the maximum angle at which the second blade rotates outward under the action of the second slide rod, making it easier to adjust the maximum opening angle of the first and second blades and reducing the possibility of damage to other tissues that do not need to be removed due to excessive opening angle of the first and second blades. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 This utility model Figure 1 Enlarged view of point B in the middle;

[0023] Figure 4 This is a cross-sectional schematic diagram of the first and second blades in the closed state in this utility model;

[0024] Figure 5 This is a cross-sectional schematic diagram of the first and second blades in the open state in this utility model;

[0025] Figure 6 This is a cross-sectional schematic diagram of the first and second blades in the retracted state in this utility model;

[0026] Figure 7 This is a cross-sectional schematic diagram of the push block in this utility model;

[0027] Figure 8 This is a schematic diagram of the connecting block in this utility model;

[0028] Figure 9 This is a cross-sectional schematic diagram of the connecting block in this utility model;

[0029] Figure 10 This is a cross-sectional schematic diagram of the limiting rod in this utility model;

[0030] Figure 11 This is a cross-sectional schematic diagram of the cylindrical body of this utility model.

[0031] The attached diagram lists the components represented by each number as follows:

[0032] 10. Cylinder body; 20. Hand support; 21. Shell; 22. First handle; 30. Telescopic mechanism; 31. First slide rod; 312. Stop block; 313. Groove; 32. Second slide rod; 321. Push plate; 33. First blade; 34. Second blade; 35. First spring; 36. Push block; 361. Protrusion; 362. Second spring; 37. Second handle; 38. Torsion spring; 39. Connecting rod; 40. Angle adjustment mechanism; 41. Connecting block; 42. First wedge block; 421. First inclined surface; 43. Second wedge block; 431. Second inclined surface; 44. Third spring; 45. First screw; 50. Limiting mechanism; 51. Limiting rod; 52. Limiting block; 53. Limiting post; 54. Adjusting rod; 55. Second screw. Detailed Implementation

[0033] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific implementations of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0034] like Figures 1 to 11 As shown, a single-micro-port assisted micro-single-port thoracoscopic technique lymph node removal scissors includes a cylindrical body 10, and further includes: a hand support 20, which is disposed at one end of the cylindrical body 10 and includes a housing 21 fixedly connected to one end of the cylindrical body 10, with a first handle 22 fixedly connected in the housing 21; and a telescopic mechanism 30, which is disposed inside the cylindrical body 10 and the hand support 20, and includes a first sliding rod 31 and a second sliding rod 32 slidably connected in the cylindrical body 10. A first blade 33 and a second blade 34 are disposed at the end of the cylindrical body 10 away from the hand support 20. The second blade 34 is rotatably connected to the first blade 33, the first blade 33 is fixedly connected to the first slide rod 31, and the second blade 34 is slidably connected to the second slide rod 32. A push plate 321 is fixedly connected to the end of the second slide rod 32 away from the second blade 34. A first spring 35 is connected between the push plate 321 and the first slide rod 31. A push block 36 is slidably engaged at the end of the first slide rod 31 away from the first blade 33. A second handle 37 is provided on one side of the first handle 22. The second handle 37 is rotatably connected to the inner wall of the housing 21, and a torsion spring is connected between the second handle 37 and the housing 21. 38. The end of the second handle 37 is slidably connected to the push block 36; Angle adjustment mechanism 40 is disposed on the first slide rod 31 and is used to adjust the maximum opening angle of the first blade 33 and the second blade 34. The angle adjustment mechanism 40 includes a connecting block 41 disposed on the side of the push plate 321 near the second blade 34. The connecting block 41 is fixedly installed on the first slide rod 31. A first wedge block 42 is slidably installed inside the connecting block 41. A second wedge block 43 is disposed on the side of the first wedge block 42 away from the push plate 321. The second wedge block 43 is connected to the second slide rod 32. The first wedge block 42 and the second wedge block 43 are slidably connected. A limiting mechanism 50 is provided in the housing 21 to limit the first slide rod 31 and the second handle 37. The limiting mechanism 50 includes a limiting rod 51 rotatably connected to the inner wall of the housing 21. The lower end of the limiting rod 51 abuts against the second handle 37. A limiting block 52 is fixedly connected to the first slide rod 31. One side of the limiting block 52 abuts against the upper end of the limiting rod 51. A limiting post 53 is provided on the other side of the limiting block 52. The limiting post 53 is fixedly connected to the inner wall of the housing 21.

[0035] It should be noted that the diameter of the cylinder 10 is no more than 0.5 cm. The second blade 34 is provided with a first sliding groove. The end of the second sliding rod 32 near the second blade 34 is fixedly connected to a first sliding column. The first sliding column and the first sliding groove are in sliding engagement and rotational engagement. The end of the second handle 37 near the push block 36 is provided with a second sliding groove. The push block 36 is fixedly connected to a second sliding column. The second sliding column and the second sliding groove are in sliding engagement and rotational engagement. In the initial state, the first blade 33 and the second blade 34 are retracted inside the cylinder 10.

[0036] In this embodiment, when it is necessary to insert the end of the cylinder 10 near the first blade 33 and the second blade 34 into the patient's thoracic cavity, the first blade 33 and the second blade 34 retract into the interior of the cylinder 10, reducing the possibility of damage to other tissues in the thoracic cavity caused by the first blade 33 and the second blade 34. When it is necessary to remove lymph nodes through the first blade 33 and the second blade 34, the second handle 37 is rotated. Since the push block 36 is engaged with the first slide rod 31, the second handle 37 drives the push block 36 and the first slide rod 31 to move together towards the side closer to the first blade 33, so that the first slide rod 31 drives the first blade 33 and the second blade 34 to extend out of the cylinder 10. At this time, the outer side of the second blade 34 is no longer affected by the inner wall of the cylinder 10. The first spring 35, under its elastic action, pushes the push plate 321 and the second slide bar 32 to move away from the second blade 34, causing the second blade 34 to rotate outward. At this time, the second blade 34 and the first blade 33 are in an open state. After the second handle 37 continues to rotate, it drives the first slide bar 31 to continue moving, causing the limiting block 52 to abut against the limiting post 53. Rotating the limiting rod 51 causes the upper end of the limiting rod 51 to abut against the limiting block 52 to limit the first slide bar 31. The limiting post 53 and the limiting rod 51 clamp the limiting block 52, keeping the relative position between the first slide bar 31 and the housing 21 fixed. After the limiting rod 51 rotates, the lower end of the limiting rod 51 also abuts against the second handle 37 to prevent the second handle 37 from rotating back to the initial position. The first blade 33 and the second blade 34 are kept protruding from the cylinder 10. Continuing to rotate the second handle 37 causes the push block 36 to shift relative to the first slide rod 31, disengaging the push block 36 from the first slide rod 31. The second handle 37 then slides the push block 36 along the first slide rod 31, pushing the push plate 321 towards the side closer to the second blade 34. This causes the push plate 321 to rotate the second blade 34 inwards via the second slide rod 32, closing the second blade 34 with the first blade 33 to remove the lymph nodes. The torsion spring 38 facilitates the reset of the second handle 37. When it is necessary to adjust the maximum opening angle of the first blade 33 and the second blade 34, the first wedge block 42 is slid, allowing... The first wedge block 42 and the second wedge block 43 slide relative to each other to adjust the contact position between the second wedge block 43 and the first wedge block 42. This increases or decreases the maximum distance that the second wedge block 43 moves away from the second blade 34 relative to the first slide rod 31. Since the second wedge block 43 is fixedly connected to the second slide rod 32, the maximum distance that the second slide rod 32 moves away from the second blade 34 relative to the first slide rod 31 increases or decreases. This adjusts the maximum angle at which the second slide rod 32 drives the second blade 34 to rotate outward, so as to adjust the maximum opening angle of the first blade 33 and the second blade 34 and reduce the situation where the opening angle of the first blade 33 and the second blade 34 is too large, which may cause damage to other tissues that do not need to be removed.

[0037] like Figures 4 to 7 As shown, a stop block 312 is fixedly connected to the end of the first slide rod 31 away from the first blade 33. The push block 36 is slidably engaged with the first slide rod 31. A protrusion 361 is slidably connected inside the push block 36. A second spring 362 is connected between the protrusion 361 and the inner wall of the push block 36. A groove 313 is provided inside the stop block 312. The groove 313 is engaged with the protrusion 361.

[0038] It should be noted that the stop 312 has an inclined surface on the side near the second blade 34, which is used for the protrusion 361 to slide upward along the inclined surface to the top of the stop 312. In the initial state, the protrusion 361 is inserted into the inside of the groove 313.

[0039] In this embodiment, when the second handle 37 moves the push block 36 and the first slide rod 31 together, the second spring 362 pushes the protrusion 361 to engage with the groove 313 under elastic action, so that the relative position between the push block 36 and the first slide rod 31 remains fixed. When the first slide rod 31 is blocked by the limiting post 53 and stops moving, the second handle 37 continues to rotate and drives the push block 36 to disengage from the stop block 312. During this process, the second handle 37 drives the push block 36 and the stop block 312 to be staggered. The protrusion 361 moves upward along the push block 36, so that the protrusion 361 is pulled out from the groove 313. The push block 36 moves along the first slide rod 31 to the side closer to the second blade 34, so that the push block 36 disengages from the stop block 312, so that the push block 36 can push the push plate 321 to close the first blade 33 and the second blade 34.

[0040] like Figure 8 and Figure 9 As shown, a connecting rod 39 is provided on the side of the push plate 321 near the second blade 34. The connecting rod 39 is fixedly connected to the first slide rod 31 and slidably connected to the second slide rod 32. The two ends of the first spring 35 are fixedly connected to the push plate 321 and the connecting rod 39, respectively.

[0041] In this embodiment, the first spring 35 drives the push plate 321 and the first slide rod 31 to slide along the connecting rod 39 under the elastic action, so that the second slide rod 32 and the first slide rod 31 are relatively displaced, which makes it easier for the second slide rod 32 to drive the second blade 34 to rotate, thereby making it easier for the first blade 33 and the second blade 34 to open.

[0042] like Figure 8 and Figure 9As shown, the connecting block 41 is fixedly connected to the connecting rod 39, the first wedge block 42 is slidably engaged with the connecting block 41, a third spring 44 is connected between the inner wall of the first wedge block 42 and the connecting block 41, a first screw 45 is fixedly connected to the end of the first wedge block 42 away from the second wedge block 43, the first screw 45 is threadedly engaged with the connecting block 41, a first inclined surface 421 is provided on the side of the first wedge block 42 near the second wedge block 43, a second inclined surface 431 is provided on the side of the second wedge block 43 near the first wedge block 42, and the first inclined surface 421 and the second inclined surface 431 are slidably engaged.

[0043] It should be noted that a first knob is fixedly connected to the end of the first screw 45 away from the first wedge block 42. The first knob is provided with several first anti-slip grooves to facilitate the operator to rotate the first screw 45 through the first knob.

[0044] In this embodiment, rotating the first screw 45 causes it to rotate and move along the connecting block 41 simultaneously with the threaded engagement of the first screw 45 with the connecting block 41. The first screw 45 drives the first wedge block 42 to slide along the connecting block 41, and the first inclined surface 421 and the second inclined surface 431 slide relative to each other. This adjusts the maximum distance that the second wedge block 43 moves relative to the first wedge block 42 towards the push plate 321, thereby adjusting the maximum distance that the second slide rod 32 moves relative to the first slide rod 31 away from the second blade 34. This further adjusts the maximum angle at which the second blade 34 and the first blade 33 open. After the first screw 45 is no longer rotated, the third spring 44, under its elastic action, pushes the first wedge block 42 outward and presses the thread between the first screw 45 and the connecting block 41, facilitating the limiting of the first screw 45.

[0045] like Figure 10 As shown, an adjusting rod 54 is slidably connected inside the limiting rod 51. A second screw 55 is fixedly connected to the end of the adjusting rod 54 away from the limiting rod 51. The second screw 55 is threadedly connected to the inner wall of the housing 21.

[0046] It should be noted that the cross-sectional shape of the adjusting rod 54 is rectangular, which facilitates the rotation of the adjusting rod 54 and the rotation of the limiting rod 51 together. The end of the second screw 55 away from the adjusting rod 54 is fixedly connected to a second knob. The second knob is provided with several second anti-slip grooves, which facilitates the operator to rotate the second screw 55 through the second knob. A fourth spring (not shown in the figure) is connected between the limiting rod 51 and the adjusting rod 54. Under the elastic action of the fourth spring, the first screw 45 is pushed to move outward and press the thread between the second screw 55 and the housing 21, which facilitates the limiting of the second screw 55.

[0047] In this embodiment, rotating the second screw 55 causes it to rotate and move along the housing 21 simultaneously with the screw thread engagement with the housing 21. The second screw 55 drives the adjusting rod 54 to rotate and slides along the limiting rod 51, thereby causing the adjusting rod 54 to drive the limiting rod 51 to rotate, which facilitates the limiting blocks 52 and 57 to be limited.

[0048] like Figure 11 As shown, the outer surfaces of the first blade 33 and the second blade 34 are curved.

[0049] In this embodiment, the arc-shaped treatment reduces the sharpness of the outer surfaces of the first blade 33 and the second blade 34, thereby reducing the damage to surrounding tissues caused by the first blade 33 and the second blade 34 during surgery and reducing the degree of surgical trauma. The arc-shaped treatment also makes the outer surfaces of the first blade 33 and the second blade 34 smoother, which is easier to clean and disinfect, and reduces the risk of cross-infection.

[0050] The working principle of this utility model is as follows: rotating the second handle 37 causes the first blade 33 and the second blade 34 to extend, open, and close from the cylinder 10 to remove lymph nodes. Since the first blade 33 and the second blade 34 are initially retracted into the inside of the cylinder 10, when it is necessary to insert the end of the cylinder 10 close to the first blade 33 and the second blade 34 into the patient's chest cavity, the damage to other tissues in the chest cavity caused by the first blade 33 and the second blade 34 is reduced. After the first wedge block 42 slides, the position of the second wedge block 43 abutting against the first wedge block 42 is adjusted to adjust the maximum stroke of the second slide rod 32 relative to the first slide rod 31 towards the end away from the second blade 34. This facilitates the adjustment of the maximum opening angle of the first blade 33 and the second blade 34, reducing the possibility of damage to other tissues that do not need to be removed due to excessive opening angle of the first blade 33 and the second blade 34.

[0051] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A set of lymph node removal scissors specifically designed for single-micro-port assisted micro-single-port thoracoscopic techniques, characterized in that, Including the cylinder (10), it also includes: Hand support (20), the hand support (20) is disposed at one end of the cylinder (10), the hand support (20) includes a housing (21) fixedly connected to one end of the cylinder (10), and a first handle (22) is fixedly connected in the housing (21); A telescopic mechanism (30) is provided inside the cylinder (10) and the hand support (20). The telescopic mechanism (30) includes a first slide rod (31) and a second slide rod (32) slidably connected in the cylinder (10). A first blade (33) and a second blade (34) are provided at the end of the cylinder (10) away from the hand support (20). The second blade (34) is rotatably connected to the first blade (33). The first blade (33) is fixedly connected to the first slide rod (31). The second blade (34) is slidably connected to the second slide rod (32). 32) A push plate (321) is fixedly connected to one end away from the second blade (34). A first spring (35) is connected between the push plate (321) and the first slide rod (31). A push block (36) is slidably engaged at one end of the first slide rod (31) away from the first blade (33). A second handle (37) is provided on one side of the first handle (22). The second handle (37) is rotatably connected to the inner wall of the housing (21). A torsion spring (38) is connected between the second handle (37) and the housing (21). The end of the second handle (37) is slidably connected to the push block (36). An angle adjustment mechanism (40) is provided on a first slide rod (31) for adjusting the maximum angle of the opening of the first blade (33) and the second blade (34). The angle adjustment mechanism (40) includes a connecting block (41) provided on the side of the push plate (321) near the second blade (34). The connecting block (41) is fixedly installed on the first slide rod (31). A first wedge block (42) is slidably installed inside the connecting block (41). A second wedge block (43) is provided on the side of the first wedge block (42) away from the push plate (321). The second wedge block (43) is fixedly connected to the second slide rod (32). The first wedge block (42) and the second wedge block (43) are slidably engaged. A limiting mechanism (50) is provided in the housing (21) for limiting the first slide rod (31) and the second handle (37). The limiting mechanism (50) includes a limiting rod (51) rotatably connected to the inner wall of the housing (21). The lower end of the limiting rod (51) abuts against the second handle (37). A limiting block (52) is fixedly connected to the first slide rod (31). One side of the limiting block (52) abuts against the upper end of the limiting rod (51). A limiting post (53) is provided on the other side of the limiting block (52). The limiting post (53) is fixedly connected to the inner wall of the housing (21). When the second handle (37) rotates, it drives the first slide bar (31) to move, causing the first blade (33) and the second blade (34) to extend out of the cylinder (10). The first spring (35) drives the first blade (33) and the second blade (34) to open. When the second handle (37) continues to rotate, it drives the push block (36) to push the push plate (321), causing the first blade (33) and the second blade (34) to close.

2. The lymph node removal scissors for single-micro-port assisted micro-single-port thoracoscopic technique according to claim 1, characterized in that: A stop block (312) is fixedly connected to the end of the first slide rod (31) away from the first blade (33). The push block (36) is slidably engaged with the first slide rod (31). A protrusion (361) is slidably connected inside the push block (36). A second spring (362) is connected between the protrusion (361) and the inner wall of the push block (36). A groove (313) is provided inside the stop block (312). The groove (313) is engaged with the protrusion (361).

3. The lymph node removal scissors for single-micro-port assisted micro-single-port thoracoscopic technique according to claim 1, characterized in that: A connecting rod (39) is provided on the side of the push plate (321) near the second blade (34). The connecting rod (39) is fixedly connected to the first slide rod (31) and slidably connected to the second slide rod (32). The two ends of the first spring (35) are fixedly connected to the push plate (321) and the connecting rod (39) respectively.

4. The lymph node removal scissors for single-micro-port assisted micro-single-port thoracoscopic technique according to claim 3, characterized in that: The connecting block (41) is fixedly connected to the connecting rod (39). The first wedge block (42) is slidably engaged with the connecting block (41). A third spring (44) is connected between the inner wall of the first wedge block (42) and the connecting block (41). A first screw (45) is fixedly connected to the end of the first wedge block (42) away from the second wedge block (43). The first screw (45) is threadedly engaged with the connecting block (41). A first inclined surface (421) is provided on the side of the first wedge block (42) near the second wedge block (43). A second inclined surface (431) is provided on the side of the second wedge block (43) near the first wedge block (42). The first inclined surface (421) and the second inclined surface (431) are slidably engaged.

5. The lymph node removal scissors for single-micro-port assisted micro-single-port thoracoscopic technique according to claim 1, characterized in that: An adjusting rod (54) is slidably connected inside the limiting rod (51). A second screw (55) is fixedly connected to one end of the adjusting rod (54) away from the limiting rod (51). The second screw (55) is threadedly connected to the inner wall of the housing (21).

6. The lymph node removal scissors for single-micro-port assisted micro-single-port thoracoscopic technique according to claim 1, characterized in that: The outer surfaces of the first blade (33) and the second blade (34) are curved.

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