Angle-adjustable pet urethra inner cutter

Abstract

The invention relates to the technical field of medical instruments, in particular to an angle-adjustable pet urethra inner cutter which comprises an inner cutter body, the inner cutter body is movably mounted in a hollow bearing pipe, a cutter body driving mechanism is mounted in the hollow bearing pipe, the inner cutter body rotates through the cutter body driving mechanism, and the angle-adjustable pet urethra inner cutter is mounted in the hollow bearing pipe. A cutter body fixing assembly is installed on the cutter body driving mechanism, the cutter body fixing assembly can fix the cutter body driving mechanism so as to fix the inner cutter body, a limiting carrier plate is further arranged on the driving inner inserting rod, and the limiting carrier plate is arranged on the cutter body driving mechanism so as to adjust the angle of the inner cutter body. The limiting carrier plate is matched with the movable locking block to fix the movable locking block, so that the movable locking block cannot move when the hollow bearing pipe is pulled, the stability of the inner cutter body can be fully guaranteed, and smooth cutting is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to an endo-urethrotome for pets with adjustable angle. Background Art

[0002] When treating diseases such as urethral stricture, calculi or atresia with an endo-urethrotome for pets, it is usually necessary to insert it into the urethra for operation. In order to ensure that the normal part of the urethra will not be scratched during the insertion of the endo-urethrotome, generally the endo-urethrotome is housed in a hollow pipe fitting, and the endo-urethrotome is brought into the urethra through the pipe fitting. When the endo-urethrotome reaches the designated position, the angle of the endo-urethrotome is adjusted so that a part of it protrudes outside the hollow pipe fitting for cutting work. Although it can well ensure that the urethra will not be accidentally injured, there are still some deficiencies. That is, on the one hand, the angle of the endo-urethrotome cannot be stably fixed after adjustment, and when pulling the hollow pipe fitting during the cutting process, the angle of the endo-urethrotome is likely to change due to the operation of the staff, thus affecting the cutting quality. On the other hand, the endo-urethrotome installed in the hollow pipe fitting cannot be conveniently installed and disassembled, so that it cannot be disassembled and cleaned after the operation, and it is difficult to clean the hollow pipe fitting and the endo-urethrotome thoroughly, which is time-consuming and laborious, and it is also inconvenient to replace the endo-urethrotome. Summary of the Invention

[0003] The purpose of the present invention is to provide an endo-urethrotome for pets with adjustable angle to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] An endo-urethrotome for pets with adjustable angle, including an endo-urethrotome body, the endo-urethrotome body is movably installed in a hollow carrier tube, and a tool body driving mechanism is installed in the hollow carrier tube. The endo-urethrotome body is rotated through the tool body driving mechanism, so as to realize the angle adjustment of the endo-urethrotome body;

[0006] A tool body fixing component is installed on the tool body driving mechanism, and the tool body fixing component can fix the tool body driving mechanism, so as to fix the endo-urethrotome body;

[0007] An auxiliary locking mechanism is further arranged on the tool body driving mechanism, and the auxiliary locking mechanism fixes the tool body fixing component;

[0008] A tool body limiting component is further installed on the hollow carrier tube, and the tool body limiting component is used for the convenient installation and disassembly of the endo-urethrotome body, and the tool body limiting component is driven by the tool body driving mechanism.

[0009] Preferably, the tool body driving mechanism is a driving inner insert rod, and the driving inner insert rod is movably connected with the endo-urethrotome body to drive the endo-urethrotome body to rotate.

[0010] Preferably, the tool body fixing assembly includes a movable limiting link rod and a movable locking block, and the movable locking block is movably connected to the driving inner inserting rod through the movable limiting link rod.

[0011] Preferably, the movable locking block cooperates with the hollow bearing pipe to fix the driving inner inserting rod.

[0012] Preferably, the auxiliary locking mechanism is a limiting carrier plate, and plugging fixing plates are symmetrically arranged on the limiting carrier plate;

[0013] The plugging fixing plates cooperate with the movable locking block to fix the movable locking block.

[0014] Preferably, the tool body limiting assembly includes a limiting arc plate, a connecting link block and a movable carrier bar, and the limiting arc plate presses on the internal cutting tool body to limit it.

[0015] Preferably, the connecting link block is installed in the hollow bearing pipe, and a limiting inserting rod is fixedly arranged on the connecting link block, and the limiting inserting rod is connected to the driving inner inserting rod.

[0016] Preferably, the driving inner inserting rod drives the connecting link block to move up and down through the limiting inserting rod.

[0017] Preferably, push-pull carrier rods are symmetrically hinged on the connecting link block, the push-pull carrier rods are movably connected to a movable carrier bar, and the movable carrier bar is inside the hollow bearing pipe.

[0018] Preferably, a stabilizing carrier column is fixedly arranged at one end of the movable carrier bar, and the stabilizing carrier column cooperates with the limiting arc plate to fix the limiting arc plate on the hollow bearing pipe.

[0019] Preferably, the driving inner inserting rod can drive the internal cutting tool body to be fixed at any angle within a certain range.

[0020] Compared with the prior art, the beneficial effects of the present invention are: The structure of the present invention is reasonably arranged and has strong functionality, and has the following advantages:

[0021] 1. An internal cutting tool body and a driving inner inserting rod are installed in the hollow bearing pipe. By moving the driving inner inserting rod, the rotation of the internal cutting tool body can be realized, and thus the angle adjustment of the internal cutting tool body can be realized. The operation is simple and convenient. And a movable locking block is connected to the driving inner inserting rod, and an external thread is arranged on the movable locking block. Through the cooperation of the external thread and the internal thread in the hollow bearing pipe, the driving inner inserting rod can be fixed, and thus the internal cutting tool body can be fixed, and the internal cutting tool body can be fixed at any angle.

[0022] 2. A limiting carrier plate is also provided on the driving inner insert rod. The movable locking block can be fixed through the cooperation of the limiting carrier plate and the movable locking block, so that the movable locking block will not move when the hollow bearing pipe is pulled, thereby fully ensuring the stability of the inner cutting tool body and ensuring the smooth progress of cutting.

[0023] 3. In addition, when it is necessary to clean the inner cutting tool body and the hollow bearing pipe, the unlocking of the limiting arc plate can be achieved by pushing the driving inner insert rod, and then the limiting arc plate can be removed, so that the inner cutting tool body is in an unlocked state. At this time, the inner cutting tool body protrudes outside the hollow bearing pipe to the greatest extent, which is convenient for removing the inner cutting tool body and cleaning the inner cutting tool body and the hollow bearing pipe separately, ensuring the cleaning quality and facilitating the replacement of the inner cutting tool body at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the first perspective of the assembly of the hollow bearing pipe and the inner cutting tool body.

[0025] Figure 2 It is a schematic diagram of the second perspective of the assembly of the hollow bearing pipe and the inner cutting tool body.

[0026] Figure 3 For Figure 1 The enlarged schematic diagram at position A in

[0027] Figure 4 For Figure 2 The enlarged schematic diagram at position B in

[0028] Figure 5 It is a schematic diagram of the structure of the hollow bearing pipe.

[0029] Figure 6 For Figure 5 The enlarged schematic diagram at position C in

[0030] Figure 7 It is a schematic diagram of the first perspective of the assembly of the driving inner insert rod.

[0031] Figure 8 For Figure 7 The enlarged schematic diagram at position D in

[0032] Figure 9 For Figure 7 The enlarged schematic diagram at position E in

[0033] Figure 10 It is a schematic diagram of the second perspective of the assembly of the driving inner insert rod.

[0034] Figure 11 For Figure 10 The enlarged schematic diagram at position F in

[0035] Figure 12Schematic diagram of the internal structure of the hollow load-bearing tube.

[0036] Figure 13 It is a schematic diagram of the structure of the driving inner rod.

[0037] Figure 14 It is a schematic diagram of the structure of the inner cutting knife body.

[0038] Figure 15 It is the assembly diagram of the movable locking block.

[0039] In the figure: 1, hollow bearing tube; 11, internal thread; 12, prompt channel; 13, inner bearing tube plate; 14, inner bearing channel; 15, supporting auxiliary rod; 16, tool socket; 17, rotating bearing block; 171, rotating bearing groove; 172, plug-in channel; 18, receiving inner rod; 181, bearing block; 182, movable through hole; 2, inner cutting knife body; 21, bending knife handle; 22, rotating bearing rod; 23, rotating bearing block; 3, driving inner plug rod; 31, bearing connecting plate; 32, matching guide rod; 33, bearing top plate; 34, limiting plate frame; 35, bearing channel; 36, limiting carrier plate; 361, plug-in fixed plate; 37, movable limiting connecting rod; 38, matching carrier plate; 381, limiting Fixed matching hole; 382, load-bearing bottom strip; 383, U-shaped driving frame; 39, connecting strip frame; 391, tilting part; 4, movable locking block; 41, external thread; 42, internal connecting channel; 43, matching inner rod; 44, reset spring; 45, movable connecting block; 46, movable matching hole; 47, matching hand plate; 48, connecting matching hole; 49, anti-shifting load block; 491, anti-shifting channel; 5, limiting arc plate; 51, limiting bearing block; 52, pressing limiting groove; 53, stabilizing plug plate; 54, locking channel; 6, connecting block; 61, limiting plug rod; 62, load-bearing bottom block; 63, connecting plug column; 64, push-pull load rod; 7, movable load strip; 71, sleeve bearing hole; 72, stable load column. DETAILED DESCRIPTION

[0040] 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.

[0041] The present invention provides a technical solution:

[0042] like Figure 1 and Figure 2As shown in the figure, an angle-adjustable pet urethral endocutter includes an endocutter body 2. The endocutter body 2 is movably installed in a hollow bearing tube 1. A cutter body driving mechanism is installed in the hollow bearing tube 1. The rotation of the endocutter body 2 is carried out through the cutter body driving mechanism, thereby realizing the angle adjustment of the endocutter body 2. A cutter body fixing component is installed on the cutter body driving mechanism. The cutter body fixing component can fix the cutter body driving mechanism, thereby fixing the endocutter body 2. An auxiliary locking mechanism is also provided on the cutter body driving mechanism. The cutter body fixing component is fixed through the auxiliary locking mechanism. A cutter body limiting component is also installed on the hollow bearing tube 1. The convenient installation and disassembly of the endocutter body 2 are carried out through the cutter body limiting component, and the cutter body limiting component is driven by the cutter body driving mechanism.

[0043] As Figure 5 , Figure 6 and Figure 12 As shown in the figure, internal threads 11 are provided inside the open end of the hollow bearing tube 1, and a prompt channel 12 is opened at the open end of the hollow bearing tube 1. An internal bearing tube plate 13 is fixedly arranged inside the hollow bearing tube 1. An internal bearing channel 14 is opened on the internal bearing tube plate 13. A support auxiliary rod 15 is fixedly arranged on the internal bearing tube plate 13 below the internal bearing channel 14. A tool socket 16 is opened on the hollow bearing tube 1. Rotating bearing blocks 17 are symmetrically and fixedly arranged inside the hollow bearing tube 1 at the lower side of one end of the tool socket 16. A rotating bearing groove 171 is opened on the rotating bearing block 17. A plugging channel 172 is also opened on the rotating bearing block 17 beside the rotating bearing groove 171. A receiving inner rod 18 is fixedly arranged inside the hollow bearing tube 1 at the lower side of the other end of the tool socket 16. A bearing block body 181 is fixedly arranged on the receiving inner rod 18. A movable through hole 182 is opened on the bearing block body 181.

[0044] As Figure 4 and Figure 14 As shown in the figure, a bent tool handle 21 is fixedly arranged on the endocutter body 2. Rotating bearing rods 22 are symmetrically and fixedly arranged at the upper end of the bent tool handle 21, and rotating bearing blocks 23 are symmetrically and fixedly arranged at the lower end of the bent tool handle 21. When the endocutter body 2 is installed in the hollow bearing tube 1, the rotating bearing rods 22 are plugged into the rotating bearing grooves 171.

[0045] As Figure 7 , Figure 8 , Figure 9 and Figure 13As shown, the tool body driving mechanism is to drive the inner insertion rod 3. The inner insertion rod 3 is movably connected to the inner cutting tool body 2 to drive the inner cutting tool body 2 to rotate. One end of the inner insertion rod 3 is fixedly provided with a bearing connecting plate 31. Symmetrically fixed on the bearing connecting plate 31 are cooperating guide rods 32. And at the upper end of the bearing connecting plate 31 is also fixedly provided with a bearing top plate 33. Fixed on the bearing top plate 33 is a limiting plate frame 34. And symmetrically opened on the bearing top plate 33 are bearing channels 35. The other end of the inner insertion rod 3 is fixedly provided with a cooperating carrier plate 38. A limiting cooperation hole 381 is opened on the cooperating carrier plate 38. And at the lower end of the cooperating carrier plate 38 is fixedly provided with a bearing bottom strip 382. Symmetrically fixed on the bearing bottom strip 382 are U-shaped driving frames 383. The rotating bearing block 23 is inserted into the U-shaped driving frames 383. And the rotating bearing block 23 is in contact with the inner walls of the U-shaped driving frames 383. Also symmetrically fixed on the bearing bottom strip 382 are connecting strip frames 39. At one end of the connecting strip frames 39 close to the U-shaped driving frames 383 is provided a tilting portion 391.

[0046] The inner insertion rod 3 is inserted into the inner bearing channel 14. And a support auxiliary rod 15 is inserted into the limiting cooperation hole 381 on the cooperating carrier plate 38.

[0047] As Figure 3 、 Figure 7 and Figure 15 As shown in, the tool body fixing assembly includes a movable limiting link 37 and a movable locking block 4. The movable locking block 4 is movably connected to the inner insertion rod 3 through the movable limiting link 37. That is, the two sides of the inner insertion rod 3 are symmetrically hinged with the movable limiting link 37. On the outer end face of the movable locking block 4 is provided an external thread 41. On the inner end face of the movable locking block 4 is opened an inner connecting channel 42. Fixed in the inner connecting channel 42 is a cooperating inner rod 43. Sleeved on the cooperating inner rod 43 are a return spring 44 and a movable connecting block 45. A moving cooperation hole 46 is opened on the movable connecting block 45. The moving cooperation hole 46 cooperates with the cooperating inner rod 43. And the two ends of the return spring 44 are respectively fixed on the inner wall of the inner connecting channel 42 and the movable connecting block 45. The movable connecting block 45 is hinged to the other end of the movable limiting link 37. One end of the movable locking block 4 is also fixedly provided with a cooperating hand plate 47. A connecting cooperation hole 48 is opened on the cooperating hand plate 47. A cooperating guide rod 32 is inserted into the connecting cooperation hole 48. And fixed on the cooperating hand plate 47 is an anti-shifting carrier block 49. An anti-shifting channel 491 is opened on the anti-shifting carrier block 49.

[0048] As Figure 1 and Figure 2 As shown in, the movable locking block 4 cooperates with the hollow bearing tube 1 to fix the inner insertion rod 3. That is, the external thread 41 on the movable locking block 4 cooperates with the internal thread 11 in the hollow bearing tube 1, so that the inner insertion rod 3 cannot move.

[0049] As Figure 3and Figure 8 As shown, the auxiliary locking mechanism is a limiting carrier plate 36, on which a plug-in fixing plate 361 is symmetrically arranged, the limiting carrier plate 36 is located inside the limiting plate frame 34, and on which a plug-in fixing plate 361 is symmetrically fixed, the plug-in fixing plate 361 is plugged into the bearing channel 35, and the plug-in fixing plate 361 cooperates with the movable locking block 4 to fix the movable locking block 4, that is, at this time, the plug-in fixing plate 361 is plugged into the anti-movement channel 491 on the movable locking block 4.

[0050] like Figure 4 , Figure 7 , Figure 9 and Figure 11 As shown, the blade limiting assembly includes a limiting arc plate 5, a connecting block 6 and a movable carrier strip 7. The limiting arc plate 5 is pressed on the inner cutting blade 2 to limit it. The limiting arc plate 5 is symmetrically fixed with a limiting block 51, and a downward limiting groove 52 is provided on the limiting block 51. A rotating bearing rod 22 is inserted in the downward limiting groove 52. A stabilizing plug plate 53 is also fixedly provided at the lower end of the limiting block 51. A locking channel 54 is provided on the stabilizing plug plate 53, and the stabilizing plug plate 53 is inserted in the insertion channel 172. The connecting block 6 is installed on the In the hollow supporting tube 1, a limiting plug rod 61 is fixedly provided on the connecting block 6, the limiting plug rod 61 is connected to the driving inner plug rod 3, the limiting plug rod 61 is inserted in the movable through hole 182, and a supporting bottom block 62 is fixedly provided at the lower end of the limiting plug rod 61, and a connecting plug column 63 is symmetrically fixedly provided on the supporting bottom block 62. The driving inner plug rod 3 drives the connecting block 6 to move up and down through the limiting plug rod 61, that is, the connecting plug column 63 is inserted in the connecting strip frame 39, and the connecting plug column 63 contacts the inner wall of the connecting strip frame 39.

[0051] like Figure 9 , Figure 10 and Figure 11 As shown, a push-pull load rod 64 is symmetrically hinged on the connecting block 6, and the push-pull load rod 64 is movably connected to a movable load bar 7, which is located inside the hollow load-bearing tube 1, and a stabilizing load column 72 is fixedly provided at one end of the movable load bar 7, and a sleeve bearing hole 71 is provided at the other end of the movable load bar 7, and a receiving inner rod 18 is inserted into the sleeve bearing hole 71, and the stabilizing load column 72 cooperates with the limiting arc plate 5 to fix the limiting arc plate 5 on the hollow load-bearing tube 1, that is, the stabilizing load column 72 is inserted in the locking channel 54.

[0052] Driving the inner insert rod 3 can drive the inner cutting blade body 2 to be fixed at any angle within a certain range.

[0053] After the inner cutting tool body 2 reaches the specified position, pull up the limiting carrier plate 36 at this time, so that the plugging and fixing plate 361 on the limiting carrier plate 36 exits the anti-displacement channel 491 on the movable locking block 4, so that the movable locking block 4 is in an unlocked state. At this time, the two movable locking blocks 4 can be pulled towards each other at the same time, so that the external thread 41 on the movable locking block 4 is separated from the internal thread 11 inside the hollow bearing tube 1, that is, the movable locking block 4 moves towards the driving inner inserting rod 3. In this way, under the action of the movable limit connecting rod 37, the movable connecting block 45 will be pushed to move, so that the return spring 44 is in a compressed state. In this way, the driving inner inserting rod 3 is in an unlocked state, and at this time, the lower end surface of the plugging and fixing plate 361 is in contact with the upper end surface of the anti-displacement block 49. At this time, the driving inner inserting rod 3 can be pushed to move into the hollow bearing tube 1. As the driving inner inserting rod 3 moves, under the action of the U-shaped driving frame 383, the rotating bearing block 23 on the bent knife handle 21 will be driven to move. As the rotating bearing block 23 moves, the inner cutting tool body 2 can be driven to rotate, so that part of the inner cutting tool body 2 rotates out of the hollow bearing tube 1, realizing the angle adjustment of the inner cutting tool body 2. After its angle is adjusted, it can be released one by one at this time. As the movable locking block 4 is released, under the action of the return spring 44, the movable connecting block 45 will be driven to reset, and then the movable locking block 4 will be driven to reset, so that the external thread 41 on the movable locking block 4 meshes with the internal thread 11 in the hollow bearing tube 1, and the fixing of the driving inner inserting rod 3 can be realized. After both movable locking blocks 4 are released, the two plugging and fixing plates 361 are respectively aligned with the two anti-displacement channels 491. In this way, under the action of the self-weight of the limiting carrier plate 36, the plugging and fixing plate 361 can be inserted into the anti-displacement channel 491. In this way, the fixing of the movable locking block 4 can be realized by the cooperation of the plugging and fixing plate 361 and the anti-displacement channel 491. In this way, even if the staff touches the movable locking block 4 during the cutting process, the movable locking block 4 will not move, which can fully ensure the stability after the angle adjustment of the inner cutting tool body 2 and ensure the smooth progress of cutting. When adjusting the angle of the inner cutting tool body 2 for cutting, the farthest distance that the driving inner inserting rod 3 can move is that the bearing connecting plate 31 on the driving inner inserting rod 3 does not enter the prompt channel 12. In this way, during the movement, the connecting plug 63 on the bearing bottom block 62 can always not enter the raised part 391 on the connecting strip frame 39, so that the inner cutting tool body 2 can always maintain a stable installation state. In addition, when the cutting is completed and the inner cutting tool body 2 and the hollow bearing tube 1 need to be cleaned, the two can be separated and then cleaned, which is convenient for cleaning the two and can also clean them more thoroughly. When disassembling, move the driving inner inserting rod 3 further into the hollow bearing tube 1, so that the bearing connecting plate 31 on the driving inner inserting rod 3 is inserted into the prompt channel 12 on the hollow bearing tube 1.The process of inserting the bearing connecting plate 31 into the prompt channel 12 is the process of inserting the connecting pin 63 on the bearing bottom block 62 into the tilting portion 391. With the insertion of the connecting pin 63, the connecting pin 63 can be driven to move upward under the action of the tilting portion 391, thereby driving the connecting block 6 to move upward. With the upward movement of the connecting block 6, the two movable carrying bars 7 will be driven to move toward each other under the action of the push-pull carrying rod 64, thereby making the stable carrying column 72 on the movable carrying bar 7 withdraw from the locking channel 54, so that the limiting arc plate 5 is in an unlocked state, and then the limiting arc plate 5 can be removed from the hollow bearing tube 1. With the removal of the limiting arc plate 5, the inner cutting knife body 2 is also in an unlocked state, and the inner cutting knife body 2 can be The inner cutter body 2 is removed, and the inner cutter body 2 is rotated to the highest position at this time, and most of it protrudes outside the hollow supporting tube 1, which is more convenient to remove it. The operation is simple, convenient and fast. After the inner cutter body 2 and the hollow supporting tube 1 are cleaned, the inner cutter body 2 can be reinstalled at this time. During installation, the rotating bearing block 23 is plugged into the U-shaped driving frame 383, and the rotating bearing rod 22 is dropped into the rotating bearing groove 171 to complete the installation of the inner cutter body 2. Then, the limiting arc plate 5 is installed on the hollow supporting tube 1 to complete the limitation of the rotating bearing rod 22, so that the driving inner plug rod 3 can be moved in the reverse direction and reset. When replacing the inner cutter body 2, the same operation can be performed, which is very convenient and fast.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An angle-adjustable pet urethral end cutter, comprising an end cutter body, wherein the end cutter body is movably installed in a hollow bearing tube, and is characterized in that: A tool body driving mechanism is installed in the hollow bearing pipe. The rotation of the internal cutting tool body is carried out through the tool body driving mechanism, so as to realize the angle adjustment of the internal cutting tool body. A tool body fixing component is installed on the tool body driving mechanism. The tool body fixing component can fix the tool body driving mechanism, and then fix the internal cutting tool body. An auxiliary locking mechanism is also arranged on the tool body driving mechanism. The tool body fixing component is fixed through the auxiliary locking mechanism. A tool body limiting component is also installed on the hollow bearing pipe. The convenient installation and disassembly of the internal cutting tool body is carried out through the tool body limiting component, and the tool body limiting component is driven by the tool body driving mechanism.

2. The angle-adjustable pet urethral end cutter according to claim 1, wherein: The tool body driving mechanism is a driving inner inserting rod, and the driving inner inserting rod is movably connected with the internal cutting tool body to drive the internal cutting tool body to rotate.

3. The angle-adjustable pet urethral endo-incision knife according to claim 2, characterized in that: The tool body fixing component includes a movable limiting connecting rod and a movable locking block. The movable locking block is movably connected with the driving inner inserting rod through the movable limiting connecting rod.

4. The angle-adjustable pet urethral end cutter according to claim 3, characterized in that: The movable locking block cooperates with the hollow bearing pipe to fix the driving inner inserting rod.

5. The angle-adjustable pet urethral end cutter according to claim 4, characterized in that: The auxiliary locking mechanism is a limiting carrier plate, and plugging fixing plates are symmetrically arranged on the limiting carrier plate. The plugging fixing plates cooperate with the movable locking block to fix the movable locking block.

6. The angle-adjustable pet urethral endo-scalpel according to claim 5, wherein: The tool body limiting component includes a limiting arc plate, a connecting block and a movable carrier bar. The limiting arc plate presses on the internal cutting tool body to limit it.

7. The angle-adjustable pet urethral endo-scalpel according to claim 6, characterized in that: The connecting block is installed in the hollow bearing pipe, and a limiting inserting rod is fixedly arranged on the connecting block. The limiting inserting rod is connected with the driving inner inserting rod.

8. The angle-adjustable pet urethral end cutter according to claim 7, wherein: The driving inner inserting rod drives the connecting block to move up and down through the limiting inserting rod.

9. The angle-adjustable pet urethral end cutter according to claim 8, characterized in that: Push-pull carrier bars are symmetrically hinged on the connecting block. The push-pull carrier bars are movably connected with a movable carrier bar, and the movable carrier bar is inside the hollow bearing pipe.

10. The angle-adjustable pet urethral end cutter according to claim 9, characterized in that: A stabilizing carrier column is fixedly arranged at one end of the movable carrier bar. The stabilizing carrier column cooperates with the limiting arc plate to fix the limiting arc plate on the hollow bearing pipe.

11. An adjustable-angle pet urethral endocutter according to claim 10, characterized in that: The driving inner inserting rod can drive the internal cutting tool body to be fixed at any angle within a certain range.

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