Medical surgical anastomat

Abstract

The invention discloses a medical surgical stapler, and relates to the technical field of staplers, the medical surgical stapler comprises a fixed handle, a control handle is arranged at the top of the fixed handle, an adjusting seat is arranged on the outer wall of the control handle, a connecting box is arranged on the outer wall of the adjusting seat, and an operation straight pipe is arranged on the outer wall of the connecting box; a mounting pipe is detachably connected to the outer wall of the operating straight pipe, a telescopic pipe is arranged on one side of the mounting pipe, a nail abutting seat is arranged on the outer wall of the telescopic pipe, a rotating shaft is rotationally connected to the outer wall of the telescopic pipe, and a nail bin clamping plate is fixedly connected to the outer wall of the rotating shaft. By means of the structure, when the nail bin clamping plate monitors that the pressure on the treatment part of a patient is too large, multiple locking can be conducted on the nail bin clamping plate and the nail abutting base, and the situation that the to-be-treated part of the patient is wounded due to continuous operation of the nail bin clamping plate is prevented; and the adjusting effect of the use angle of the nail bin splint in the body of the patient can be further improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of staplers, and in particular relates to a stapler for medical surgery. Background Art

[0002] Staplers are often used as endoscopic surgical instruments to replace traditional open surgical devices, because smaller incisions can often shorten postoperative recovery time and reduce complications. Therefore, a series of endoscopic surgical instruments suitable for accurately placing the jaw assembly of the stapler through the cannula of the cannula needle at the desired surgical site have been developed. After these jaw assemblies enter the tissue, appropriate shearing and suturing operations are performed to achieve diagnostic or therapeutic effects.

[0003] Although the existing technology can perform better treatment operations on the patient's treatment area through the stapler, when the patient's treatment area is suturing through the stapler seat and the stapler magazine splint, the monitoring effect of the suturing pressure between the stapler magazine splint and the patient's treatment area is not high, and when the treatment pressure on the treatment area is too high, the timely multiple locking effect of the stapler magazine splint is not high, so that when the pressure sensor monitors that the pressure on the treatment area is too high, the stapler magazine splint continues to operate, causing damage to the patient's treatment area, affecting the effect of subsequent treatment on the patient, and there is a risk of aggravating the patient's condition, reducing the safety and treatment effect of the stapler on the patient, and is not conducive to use by staff. For this reason, we propose a medical surgical stapler. Summary of the invention

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A medical surgical stapler comprises a fixed handle, a control handle is arranged on the top of the fixed handle, an adjustment seat is arranged on the outer wall of the control handle, a connection box is arranged on the outer wall of the adjustment seat, an operating straight tube is arranged on the outer wall of the connection box, a mounting tube is detachably connected to the outer wall of the operating straight tube, a telescopic tube is arranged on one side of the mounting tube, a nail support is arranged on the outer wall of the telescopic tube, a rotating shaft is rotatably connected to the outer wall of the rotating shaft, a nail magazine clamp is fixedly connected to the outer wall of the rotating shaft, and a locking mechanism is arranged on the outer wall of the rotating shaft;

[0006] The locking mechanism includes a first locking block and a resisting rod, the inner wall of the telescopic tube is slidably connected to a lifting rod, the outer wall of the lifting rod is rotatably connected to a rotating rod, one end of the rotating rod is rotatably connected to the first locking block, the inner wall of the telescopic tube is slidably connected to a second locking block, the outer wall of the second locking block is slidably connected to a swing rod rotatably connected to the inner wall of the telescopic tube, the outer wall of the swing rod is slidably connected to a lifting block slidably connected to the inner wall of the telescopic tube, and the outer wall of the lifting block is fixedly connected to the resisting rod.

[0007] In this technical solution, when the pressure sensor detects that the pressure at the treatment site exceeds the predicted value, the pressure sensor transmits a locking signal to the first micro servo motor. Driven by the first micro servo motor, through the rotation of the threaded rod, the lifting rod slides along the inner wall of the telescopic tube. The sliding of the lifting rod drives the rotation of the rotating rod, which drives the first locking block and the second locking block to slide centrally, playing a role in locking and fixing the rotating shaft in a timely manner, and reducing the risk of damage to the patient's treatment site caused by the continuous movement of the staple cartridge clamp;

[0008] When the second locking block locks the rotating shaft, the second locking block slides along the inner wall of the first limiting groove, driving the swing rod to rotate. The rotation of the swing rod drives the lifting block to slide synchronously along the inner walls of the second limiting groove and the lifting groove, and drives the abutting rod to move upward, so that the abutting rod abuts against the bottom of the staple cartridge clamp, preventing the staple cartridge clamp from rotating downward when it is locked, and causing the risk of damage to the patient's treatment site again, playing a role in improving the multiple locking and fixing of the staple cartridge clamp when the stapler has treatment abnormalities.

[0009] Preferably, a universal joint fixedly connected to the outer wall of the telescopic tube is fixedly connected to the outer wall of the installation tube. A first micro servo motor is arranged on the inner wall of the telescopic tube. The output end of the first micro servo motor is fixedly connected to a threaded rod threadedly connected to the outer wall of the lifting rod. A first limiting groove is formed at the connecting part of the outer wall of the swing rod and the first locking block. A second limiting groove is formed at the connecting part of the outer wall of the swing rod and the lifting block. A lifting groove is formed at the connecting part of the inner wall of the telescopic tube and the lifting block. The first locking block is slidably connected to the inner wall of the telescopic tube.

[0010] In this technical solution, when it is necessary to drive the first locking block and the second locking block to slide centrally, the drive of the first micro servo motor rotates the threaded rod, driving the lifting rod to slide along the inner wall of the telescopic tube. The sliding of the lifting rod drives the rotation of the rotating rod, driving the first locking block and the second locking block to slide centrally along the inner wall of the telescopic tube, and under the self-locking action of the threaded rod, improving the stability of the locking block locking the rotating shaft.

[0011] Preferably, a connecting groove is formed at the connecting part of the inner wall of the telescopic tube and the lifting rod. The swing rod is symmetrically arranged about the central axis of the lifting rod. Friction sheets are arranged at the contact parts of the inner walls of the first locking block and the second locking block with the rotating shaft.

[0012] In this technical solution, friction sheets are arranged at the contact parts of the inner walls of the first locking block and the second locking block with the rotating shaft, playing a role in improving the stability of locking and fixing the rotating shaft.

[0013] Preferably, the positions of the first limit groove and the second limit groove are equidistantly distributed about the rotation center of the swing arm, the lifting block forms a lifting structure through the swing arm and the second limit groove and the lifting groove, the bottom of the nail magazine clamp is provided with a pressure sensor that is electrically fused to the first micro servo motor, the inner wall of the interference rod is provided with a interference cavity, and the outer wall of the first locking block is provided with an alignment mechanism.

[0014] In the technical solution, the arrangement of the alignment mechanism can improve the engagement stability of the connection between the locking blocks.

[0015] Preferably, the alignment mechanism includes an insertion rod and a clamping block, the outer wall of the first locking block is fixedly connected to the insertion rod, the outer wall of the second locking block is fixedly connected to a connecting plate, the outer wall of the connecting plate is slidably connected to a sliding rod, the outer wall of the sliding rod is sleeved with a first spring fixedly connected to the outer wall of the connecting plate, one end of the first spring is fixedly connected to a pulling block fixedly connected to one end of the sliding rod, and one end of the sliding rod is fixedly connected to a clamping block clamped in the outer wall of the insertion rod.

[0016] In the technical solution, the locking connection between the locking block and the insertion rod improves the alignment accuracy between the first locking block and the second locking block, thereby achieving the effect of improving the locking accuracy of the rotating shaft.

[0017] Preferably, the outer wall contour of the initial extrusion portion between the clamping block and the insertion rod is in the shape of an inclined surface, and the outer wall contour of the loosening extrusion portion between the clamping block and the insertion rod is in the shape of an arc.

[0018] In the technical solution, the outer wall contour of the initial extrusion portion of the clamping block and the insertion rod is arranged to be an inclined surface, so as to facilitate the clamping connection between the clamping block and the insertion rod.

[0019] Preferably, the inner wall of the connecting box is rotatably connected to a ratchet fixedly connected to the rotation center of the operating straight tube, the outer wall of the ratchet is fitted with a ratchet rod rotatably connected to the inner side wall of the connecting box, and the bottom of the ratchet rod is fixedly connected to a second spring rotatably connected to the inner wall of the connecting box.

[0020] In the present technical solution, the self-locking effect between the ratchet wheel and the ratchet rod is used to prevent the operating straight tube from rotating during continuous rotation, thereby preventing the treatment site of the patient from being affected.

[0021] Preferably, the outer wall of the universal joint is fixedly connected to a fixing rod, the outer wall of the fixing rod is provided with a second micro servo motor, the output end of the second micro servo motor is fixedly connected to a screw rod, and the outer wall of the screw rod is threadedly connected to a threaded slider slidably connected to the outer wall of the fixing rod.

[0022] In this technical solution, when it is necessary to expand and adjust the rotation arc of the telescopic tube, the second micro servo motor is turned on. Through the rotation of the lead screw, the threaded slider is driven to slide along the outer wall of the fixed rod, which changes the connection distance between the telescopic tube and the installation tube. Under the rotation of the universal joint, the rotation arc of the telescopic tube changes, improving the flexibility of the staple cartridge clamp and the anvil during treatment in the patient's body.

[0023] Preferably, the threaded slider is fixedly connected to the telescopic tube, and the threaded slider and the fixed rod form a telescopic structure through the lead screw.

[0024] In this technical solution, the fixed connection between the threaded slider and the telescopic tube improves the convenience of adjusting the rotation arc of the telescopic tube.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows: when the pressure sensor monitors that the pressure at the treatment site exceeds the predicted value, the pressure sensor transmits a locking signal to the first micro servo motor. Driven by the first micro servo motor, through the rotation of the threaded rod, the lifting rod is driven to slide along the inner wall of the telescopic tube. The sliding of the lifting rod drives the first locking block and the second locking block to slide centrally through the rotation of the rotating rod, locking and fixing the rotating shaft in time, reducing the risk of damage to the patient's treatment site caused by the continuous movement of the staple cartridge clamp;

[0026] When the second locking block locks the rotating shaft, the second locking block slides along the inner wall of the first limiting groove, driving the swing rod to rotate. The rotation of the swing rod drives the jacking block to slide synchronously along the inner walls of the second limiting groove and the lifting groove, and drives the abutting rod to move upward, so that the abutting rod abuts against the bottom of the staple cartridge clamp, preventing the staple cartridge clamp from rotating downward when it is locked, and avoiding the risk of causing damage to the patient's treatment site again, improving the multiple locking and fixing of the staple cartridge clamp when the stapler has treatment abnormalities. Description of the Drawings

[0027] Figure 1 Schematic diagram of the overall structure of the present invention;

[0028] Figure 2 Schematic side view of the overall structure of the present invention;

[0029] Figure 3 Schematic diagram of the internal structure of the connection box of the present invention;

[0030] Figure 4 Schematic diagram of the connection structure between the ratchet and the ratchet lever of the present invention;

[0031] Figure 5 Schematic diagram of the position distribution structure of the universal joint of the present invention;

[0032] Figure 6 Schematic cross-sectional structure diagram of the telescopic tube of the present invention;

[0033] Figure 7 Schematic structure diagram of the telescopic state of the telescopic tube of the present invention;

[0034] Figure 8 Schematic structure diagram of the connection between the staple cartridge anvil and the staple cartridge clamp of the present invention;

[0035] Figure 9 Schematic structure diagram of the connection between the rotating rod and the first locking block of the present invention;

[0036] Figure 10 Schematic structure diagram of the position distribution of the abutting rod of the present invention;

[0037] Figure 11 Schematic structure diagram of the connection between the swing rod and the lifting block of the present invention;

[0038] Figure 12 For the present invention Figure 11 Enlarged schematic structure diagram at position A in.

[0039] In the figure: 1, fixed handle; 2, control handle; 3, adjustment seat; 4, connection box; 5, operation straight tube; 6, installation tube; 7, universal joint; 8, telescopic tube; 9, staple cartridge anvil; 10, staple cartridge clamp; 11, rotating shaft; 12, locking mechanism; 1201, first micro servo motor; 1202, threaded rod; 1203, lifting rod; 1204, rotating rod; 1205, first locking block; 1206, swing rod; 1207, first limit groove; 1208, lifting block; 1209, second limit groove; 1210, lifting groove; 1211, abutting rod; 1212, second locking block; 13, alignment mechanism; 1301, insertion rod; 1302, connecting plate; 1303, sliding rod; 1304, first spring; 1305, pulling block; 1306, clamping block; 14, ratchet; 15, ratchet rod; 16, second spring; 17, second micro servo motor; 18, lead screw; 19, fixed rod; 20, threaded slider; 21, pressure sensor. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0041] Embodiment 1:

[0042] Refer to Figure 1 - Figure 12A medical surgical stapler comprises a fixed handle 1, a control handle 2 is arranged on the top of the fixed handle 1, an adjustment seat 3 is arranged on the outer wall of the control handle 2, a connection box 4 is arranged on the outer wall of the adjustment seat 3, an operation straight tube 5 is arranged on the outer wall of the connection box 4, a mounting tube 6 is detachably connected to the outer wall of the operation straight tube 5, a telescopic tube 8 is arranged on one side of the mounting tube 6, a nail support seat 9 is arranged on the outer wall of the telescopic tube 8, a rotating shaft 11 is rotatably connected to the outer wall of the telescopic tube 8, a nail magazine clamp 10 is fixedly connected to the outer wall of the rotating shaft 11, and a locking mechanism 12 is arranged on the outer wall of the rotating shaft 11;

[0043] The locking mechanism 12 includes a first locking block 1205 and a resisting rod 1211, the inner wall of the telescopic tube 8 is slidably connected to the lifting rod 1203, the outer wall of the lifting rod 1203 is rotationally connected to the rotating rod 1204, one end of the rotating rod 1204 is rotationally connected to the first locking block 1205, the inner wall of the telescopic tube 8 is slidably connected to the second locking block 1212, the outer wall of the second locking block 1212 is slidably connected to the swing rod 1206 rotationally connected to the inner wall of the telescopic tube 8, the outer wall of the swing rod 1206 is slidably connected to the lifting block 1208 slidably connected to the inner wall of the telescopic tube 8, and the outer wall of the lifting block 1208 is fixedly connected to the resisting rod 1211.

[0044] When the pressure sensor 21 detects that the pressure at the treatment site exceeds the predicted value, the pressure sensor 21 transmits a locking signal to the first micro servo motor 1201. The first micro servo motor 1201 drives the lifting rod 1203 to slide along the inner wall of the telescopic tube 8 through the rotation of the threaded rod 1202. The sliding of the lifting rod 1203 drives the first locking block 1205 and the second locking block 1212 to slide in the center through the rotation of the rotating rod 1204, thereby locking and fixing the rotating shaft 11 in time, reducing the risk of damage to the patient's treatment site due to the continuous movement of the nail magazine splint 10.

[0045] When the second locking block 1212 locks the rotating shaft 11, the second locking block 1212 slides along the inner wall of the first limiting groove 1207, driving the swing rod 1206 to rotate. The rotation of the swing rod 1206 drives the lifting block 1208 to slide synchronously along the inner walls of the second limiting groove 1209 and the lifting groove 1210, and drives the resistance rod 1211 to move upward, so that the resistance rod 1211 abuts against the bottom of the nail magazine splint 10 to prevent the nail magazine splint 10 from rotating downward when the nail magazine splint 10 is locked, causing the risk of causing damage to the patient's treatment area again, thereby improving the function of multiple locking and fixing of the nail magazine splint 10 when abnormal treatment occurs.

[0046] Embodiment 2:

[0047] This embodiment provides a medical surgical stapler. In addition to including the technical solutions of the above embodiment, it also has the following technical features. A universal joint 7 fixedly connected to the outer wall of the telescopic tube 8 is fixedly connected to the outer wall of the installation tube 6. A first micro servo motor 1201 is arranged on the inner side wall of the telescopic tube 8. The output end of the first micro servo motor 1201 is fixedly connected to a threaded rod 1202 threadedly connected to the outer wall of the lifting rod 1203. A first limiting groove 1207 is formed at the connecting part between the outer wall of the swing rod 1206 and the first locking block 1205. A second limiting groove 1209 is formed at the connecting part between the outer wall of the swing rod 1206 and the jacking block 1208. A lifting groove 1210 is formed at the connecting part between the inner side wall of the telescopic tube 8 and the jacking block 1208. The first locking block 1205 is slidably connected to the inner side wall of the telescopic tube 8.

[0048] Among them, when it is necessary to drive the first locking block 1205 and the second locking block 1212 to perform centering sliding, the drive of the first micro servo motor 1201 rotates the threaded rod 1202, driving the lifting rod 1203 to slide along the inner side wall of the telescopic tube 8. The sliding of the lifting rod 1203 rotates the rotating rod 1204, driving the first locking block 1205 and the second locking block 1212 to perform centering sliding along the inner side wall of the telescopic tube 8. And under the self-locking action of the threaded rod 1202, the stability of the locking of the locking block to the rotating shaft 11 is improved.

[0049] Embodiment 3:

[0050] This embodiment provides a medical surgical stapler. In addition to including the technical solutions of the above embodiment, it also has the following technical features. A connecting groove is formed at the connecting part between the inner side wall of the telescopic tube 8 and the lifting rod 1203. The swing rod 1206 is symmetrically arranged about the central axis of the lifting rod 1203. Friction sheets are arranged at the contact parts between the inner side walls of the first locking block 1205 and the second locking block 1212 and the rotating shaft 11.

[0051] Among them, friction sheets are arranged at the contact parts between the inner side walls of the first locking block 1205 and the second locking block 1212 and the rotating shaft 11, which improves the stability of locking and fixing the rotating shaft 11.

[0052] Embodiment 4:

[0053] This embodiment provides a medical surgical stapler. In addition to including the technical solutions of the above embodiments, it also has the following technical features. The positions of the first limiting groove 1207 and the second limiting groove 1209 are equidistantly distributed about the rotation center of the swing rod 1206. The jacking block 1208 and the lifting groove 1210 form a lifting structure through the swing rod 1206 and the second limiting groove 1209. A pressure sensor 21 electrically fused to the first micro servo motor 1201 is provided at the bottom of the staple cartridge clamp 10. A contact cavity is provided on the inner wall of the contact rod 1211, and an alignment mechanism 13 is provided on the outer wall of the first locking block 1205.

[0054] Among them, through the setting of the alignment mechanism 13, the clamping stability of the connection between the locking blocks is improved.

[0055] Embodiment 5:

[0056] This embodiment provides a medical surgical stapler. In addition to including the technical solutions of the above embodiments, it also has the following technical features. The alignment mechanism 13 includes an insertion rod 1301 and a clamping block 1306. The insertion rod 1301 is fixedly connected to the outer wall of the first locking block 1205. A connecting plate 1302 is fixedly connected to the outer wall of the second locking block 1212. A sliding rod 1303 is slidably connected to the outer wall of the connecting plate 1302. A first spring 1304 fixedly connected to the outer wall of the connecting plate 1302 is sleeved on the outer wall of the sliding rod 1303. One end of the first spring 1304 is fixedly connected to a pulling block 1305 fixedly connected to one end of the sliding rod 1303. One end of the sliding rod 1303 is fixedly connected to a clamping block 1306 that is snap-fitted to the outer wall of the insertion rod 1301.

[0057] Among them, through the snap-fitting connection between the clamping block 1306 and the insertion rod 1301, the alignment accuracy between the first locking block 1205 and the second locking block 1212 is improved, and the locking accuracy of the rotating shaft 11 is improved.

[0058] Embodiment 6:

[0059] This embodiment provides a medical surgical stapler. In addition to including the technical solutions of the above embodiments, it also has the following technical features. The outer wall contour of the initial extrusion part of the clamping block 1306 and the insertion rod 1301 is beveled, and the outer wall contour of the loosening extrusion part of the clamping block 1306 and the insertion rod 1301 is arc-shaped.

[0060] Among them, through the setting that the outer wall contour of the initial extrusion part of the clamping block 1306 and the insertion rod 1301 is beveled, the convenience of the snap-fitting connection between the clamping block 1306 and the insertion rod 1301 is achieved.

[0061] Embodiment 7:

[0062] This embodiment provides a medical surgical stapler. In addition to including the technical solutions of the above embodiment, it also has the following technical features. A ratchet wheel 14 fixedly connected to the rotation center of the operating straight tube 5 is rotatably connected to the inner wall of the connection box 4. A ratchet lever 15 rotatably connected to the inner side wall of the connection box 4 is attached to the outer wall of the ratchet wheel 14. A second spring 16 rotatably connected to the inner wall of the connection box 4 is fixedly connected to the bottom of the ratchet lever 15.

[0063] Among them, through the self-locking effect between the ratchet wheel 14 and the ratchet lever 15, it plays a role in preventing the operating straight tube 5 from rotating back during continuous rotation, which may affect the situation of the patient's treatment site.

[0064] Embodiment 8:

[0065] This embodiment provides a medical surgical stapler. In addition to including the technical solutions of the above embodiment, it also has the following technical features. A fixed rod 19 is fixedly connected to the outer wall of the universal joint 7. A second micro servo motor 17 is arranged on the outer wall of the fixed rod 19. A lead screw 18 is fixedly connected to the output end of the second micro servo motor 17. A threaded slider 20 slidably connected to the outer wall of the fixed rod 19 is threadedly connected to the outer wall of the lead screw 18.

[0066] Among them, when it is necessary to expand and adjust the rotation radian of the telescopic tube 8, the second micro servo motor 17 is turned on. Through the rotation of the lead screw 18, the threaded slider 20 is driven to slide along the outer wall of the fixed rod 19, which plays a role in driving the connection distance between the telescopic tube 8 and the installation tube 6 to change. Under the rotation of the universal joint 7, the rotation radian of the telescopic tube 8 changes, which plays a role in improving the flexibility of the staple cartridge clamp 10 and the anvil 9 during treatment in the patient's body.

[0067] Embodiment 9:

[0068] This embodiment provides a medical surgical stapler. In addition to including the technical solutions of the above embodiment, it also has the following technical features. The threaded slider 20 is fixedly connected to the telescopic tube 8, and the threaded slider 20 and the fixed rod 19 form a telescopic structure through the lead screw 18.

[0069] Among them, through the setting that the threaded slider 20 is fixedly connected to the telescopic tube 8, it plays a role in improving the convenient adjustment of the rotation radian of the telescopic tube 8.

[0070] In use, when the pressure sensor 21 monitors that the pressure at the treatment site exceeds the predicted value, the pressure sensor 21 transmits a locking signal to the first micro servo motor 1201. Driven by the first micro servo motor 1201, through the rotation of the threaded rod 1202, the lifting rod 1203 is driven to slide along the inner wall of the telescopic tube 8. The sliding of the lifting rod 1203 drives the rotation of the rotating rod 1204, which drives the first locking block 1205 and the second locking block 1212 to slide centering, playing a role in locking and fixing the rotating shaft 11 in time, and reducing the risk of damage to the patient's treatment site caused by the continuous movement of the staple cartridge clamp 10;

[0071] When the second locking block 1212 locks the rotating shaft 11, the second locking block 1212 slides along the inner wall of the first limiting groove 1207, driving the swing rod 1206 to rotate. The rotation of the swing rod 1206 drives the jacking block 1208 to slide synchronously along the inner walls of the second limiting groove 1209 and the lifting groove 1210, and drives the contact rod 1211 to move upward, so that the contact rod 1211 abuts against the bottom of the staple cartridge clamp 10, preventing the staple cartridge clamp 10 from rotating downward when it is locked, and avoiding the risk of causing damage to the patient's treatment site again, playing a role in improving the multiple locking and fixing of the staple cartridge clamp 10 when the stapler has abnormal treatment.

[0072] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. A medical surgical stapler, comprising a fixed handle (1), characterized in that, A control handle (2) is arranged on the top of the fixed handle (1); an adjustment seat (3) is arranged on the outer wall of the control handle (2); a connection box (4) is arranged on the outer wall of the adjustment seat (3); an operating straight tube (5) is arranged on the outer wall of the connection box (4); a mounting tube (6) is detachably connected to the outer wall of the operating straight tube (5); a telescopic tube (8) is arranged on one side of the mounting tube (6); a nail support seat (9) is arranged on the outer wall of the telescopic tube (8); a rotating shaft (11) is rotatably connected to the outer wall of the rotating shaft (11); a nail magazine clamp (10) is fixedly connected to the outer wall of the rotating shaft (11); a locking mechanism (12) is arranged on the outer wall of the rotating shaft (11); The locking mechanism (12) comprises a first locking block (1205) and a resisting rod (1211); the inner wall of the telescopic tube (8) is slidably connected to a lifting rod (1203); the outer wall of the lifting rod (1203) is rotatably connected to a rotating rod (1204); one end of the rotating rod (1204) is rotatably connected to the first locking block (1205); the inner wall of the telescopic tube (8) is slidably connected to a second locking block (1212); the outer wall of the second locking block (1212) is slidably connected to a swing rod (1206) rotatably connected to the inner wall of the telescopic tube (8); the outer wall of the swing rod (1206) is slidably connected to a lifting block (1208) slidably connected to the inner wall of the telescopic tube (8); and the outer wall of the lifting block (1208) is fixedly connected to the resisting rod (1211).

2. The medical surgical stapler according to claim 1, characterized in that, The outer wall of the mounting tube (6) is fixedly connected to a universal joint (7) fixedly connected to the outer wall of the telescopic tube (8); the inner wall of the telescopic tube (8) is provided with a first micro servo motor (1201); the output end of the first micro servo motor (1201) is fixedly connected to a threaded rod (1202) threadedly connected to the outer wall of the lifting rod (1203); a first limiting groove (1207) is provided at a connection position between the outer wall of the swing rod (1206) and the first locking block (1205); a second limiting groove (1209) is provided at a connection position between the outer wall of the swing rod (1206) and the lifting block (1208); a lifting groove (1210) is provided at a connection position between the inner wall of the telescopic tube (8) and the lifting block (1208); and the first locking block (1205) and the inner wall of the telescopic tube (8) are in sliding connection.

3. A surgical stapler for medical use according to claim 2, characterized in that, A connecting groove is provided at the connection position between the inner side wall of the telescopic tube (8) and the lifting rod (1203); the swing rod (1206) is symmetrically arranged with respect to the central axis of the lifting rod (1203); and friction plates are provided at the contact positions between the inner side walls of the first locking block (1205) and the second locking block (1212) and the rotating shaft (11).

4. A surgical stapler for medical use according to claim 2, characterized in that, The positions of the first limiting groove (1207) and the second limiting groove (1209) are equidistantly distributed about the rotation center of the swing rod (1206). The lifting block (1208) forms a lifting structure with the lifting groove (1210) through the swing rod (1206) and the second limiting groove (1209). A pressure sensor (21) electrically fused to the first micro servo motor (1201) is provided at the bottom of the staple cartridge clamp (10). A contact cavity is provided on the inner wall of the contact rod (1211), and an alignment mechanism (13) is provided on the outer wall of the first locking block (1205).

5. A medical surgical stapler according to claim 4, characterized in that, The alignment mechanism (13) includes a plug rod (1301) and a clamping block (1306). A plug rod (1301) is fixedly connected to the outer wall of the first locking block (1205). A connecting plate (1302) is fixedly connected to the outer wall of the second locking block (1212). A sliding rod (1303) is slidably connected to the outer wall of the connecting plate (1302). A first spring (1304) fixedly connected to the outer wall of the connecting plate (1302) is sleeved on the outer wall of the sliding rod (1303). One end of the first spring (1304) is fixedly connected to a pulling block (1305) fixedly connected to one end of the sliding rod (1303). A clamping block (1306) snap-fitted to the outer wall of the plug rod (1301) is fixedly connected to one end of the sliding rod (1303).

6. A surgical stapler for medical use according to claim 5, characterized in that, The outer wall contour of the initial extrusion part of the clamping block (1306) and the plug rod (1301) is bevel-shaped, and the outer wall contour of the loosening extrusion part of the clamping block (1306) and the plug rod (1301) is arc-shaped.

7. A surgical stapler for medical use according to claim 1, characterized in that, A ratchet wheel (14) fixedly connected to the rotation center of the operating straight pipe (5) is rotatably connected to the inner wall of the connection box (4). A ratchet lever (15) rotatably connected to the inner side wall of the connection box (4) is attached to the outer wall of the ratchet wheel (14). A second spring (16) rotatably connected to the inner wall of the connection box (4) is fixedly connected to the bottom of the ratchet lever (15).

8. The medical surgical stapler according to claim 2, wherein A fixing rod (19) is fixedly connected to the outer wall of the universal joint (7). A second micro servo motor (17) is provided on the outer wall of the fixing rod (19). A lead screw (18) is fixedly connected to the output end of the second micro servo motor (17). A threaded slider (20) slidably connected to the outer wall of the fixing rod (19) is threadedly connected to the outer wall of the lead screw (18).

9. The surgical stapler for medical use according to claim 8, characterized in that, The threaded slider (20) is fixedly connected to the telescopic tube (8). The threaded slider (20) forms a telescopic structure with the fixing rod (19) through the lead screw (18).

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