Electric anorectal anastomat with multi-dimensional three-dimensional grasping structure

Abstract

The utility model discloses an electric anorectal anastomat with a multi-dimensional three-dimensional grasping structure, which comprises a support frame, an osculating component, a screw rod, a nail propping seat component, a driving motor and a percussion component, and the osculating component is mounted on the support frame; the screw rod is rotatably connected to the supporting frame, the nail abutting seat assembly is arranged relative to the osculating assembly, and along with rotation of the screw rod, the nail abutting seat assembly can move between a clamping position and a releasing position so as to be matched with the osculating assembly to clamp and release anorectal tissue; a three-dimensional grasping structure used for containing anorectal tissue is arranged between the osculating assembly and the nail abutting base assembly. The driving motor is used for controlling the osculating assembly to act, and the percussion assembly is used for controlling starting and stopping of the driving motor. According to the anorectal tissue cutting and nail pushing device, the working stability can be improved, the anorectal tissue cutting speed and the nail pushing speed are balanced, the phenomena that the surface of the cut anorectal tissue is uneven and the nail type is poor are avoided, anorectal tissue necrosis caused by excessively pressing the anorectal tissue can be avoided, and wound healing is facilitated.

Description

Technical Field

[0001] The utility model relates to an electric anorectal stapler with a multi-dimensional three-dimensional grasping structure. Background Art

[0002] The anorectal staplers currently used are usually manually operated. During the operation, the attachment is first used as the operating channel of the stapler, and then the body of the stapler is placed in the anus and on the dentate line. The prolapsed mucosa is pulled into the body of the stapler by tying a purse, and preparations are made before firing. The stability of the instrument is poor during operation, the firing force varies significantly, and the speed of the instrument transmission is greatly affected by manual operation. In particular, the grip strength of each person varies greatly, resulting in the speed of the cutting knife cutting the anorectal tissue being fast and slow, which can easily cause uneven surfaces of the cut anorectal tissue. The speed of the nail pusher is also fast and slow, which can easily cause problems such as poor nail shape, which is not conducive to the suturing of the anorectal tissue. Before cutting and suturing, the instrument needs to compress the anorectal tissue, which can easily cause anorectal tissue necrosis and is not conducive to wound healing. Utility Model Content

[0003] According to one aspect of the utility model, there is provided an electric anorectal stapler with a multi-dimensional three-dimensional grasping structure, comprising:

[0004] Support frame;

[0005] A kiss-cutting assembly, mounted on the support frame;

[0006] A screw rod rotatably connected to the support frame and an anvil assembly arranged relative to the anastomosis assembly. With the rotation of the screw rod, the anvil assembly can move between a clamping position and a releasing position to cooperate with the anastomosis assembly to clamp and release the anorectal tissue. A three-dimensional grasping structure for accommodating the anorectal tissue is arranged between the anastomosis assembly and the anvil assembly;

[0007] A driving motor and a firing assembly, wherein the driving motor is used to control the action of the kiss cutting assembly, and the firing assembly is used to control the start and stop of the driving motor.

[0008] The utility model of the electric anorectal stapler with a multi-dimensional three-dimensional gripping structure can adjust the relative positions of the anastomosis assembly and the anvil assembly on the support frame by rotating the screw on the support frame, so that the anorectal tissue can enter the three-dimensional gripping structure between the anastomosis assembly and the anvil assembly and clamp the anorectal tissue, and then the anastomosis assembly and the anvil assembly cooperate to cut and suture the anorectal tissue. The driving motor is used to provide the kinetic energy required for the anastomosis assembly to work, and the start and stop of the driving motor is controlled by the firing assembly, so that when cutting the anorectal tissue, the cutting speed can be kept constant, which is conducive to improving the neatness of the cut anorectal tissue surface. When suturing the anorectal tissue, the nail pushing speed is kept constant, which can avoid the phenomenon of poor nail shape.

[0009] In some embodiments, the three-dimensional grasping structure includes a nail outlet and an anorectal tissue accommodating groove, the nail outlet is formed on the anastomosis component, and the anorectal tissue accommodating groove is formed between the anastomosis component and the nail support component.

[0010] In some embodiments, the anorectal tissue accommodating groove is formed by a depression from the end surface of the anvil assembly facing the anastomosis assembly toward the end surface of the anvil assembly facing away from the anastomosis assembly.

[0011] In some embodiments, the anastomosis assembly includes a nail magazine, a nail magazine sleeve and an annular knife pushing nail piece component, the three-dimensional grasping structure is arranged between the nail magazine and the nail support assembly, the nail magazine sleeve has a receiving cavity for accommodating the anastomosis staples, the nail magazine is connected to the nail magazine sleeve to cover the receiving cavity and connect the three-dimensional grasping structure with the receiving cavity, and the drive motor is used to drive the action of the annular knife pushing the nail piece component.

[0012] In some embodiments, the nail magazine and the nail magazine sleeve are detachably connected.

[0013] In some embodiments, the driving motor is connected to the kiss-cutting assembly through a transmission assembly to control the movement of the kiss-cutting assembly. The transmission assembly includes a lever and a cam mechanism. The lever is rotatably mounted on a support frame. The driving motor is used to drive the cam mechanism to rotate. As the cam mechanism rotates, the lever can control the movement of the kiss-cutting assembly.

[0014] In some embodiments, the transmission assembly further includes a safety mechanism, which is connected to the cam mechanism and is used to shut down the drive motor.

[0015] In some embodiments, a battery pack is further included, wherein the battery pack is electrically connected to the drive motor to supply power to the drive motor.

[0016] In some embodiments, an adjusting nut is further included, wherein the adjusting nut is used to enable the screw rod to rotate on the support frame to move the dowel seat assembly between the clamping position and the releasing position.

[0017] In some embodiments, it also includes a support sleeve, an anal plug and a peep sleeve, the support sleeve is provided with a sleeve hole for accommodating anorectal tissue, the anal plug is provided with a sleeve hole to enter the anorectum and push the anorectal tissue to reposition, and the peep sleeve is provided with a sleeve hole to enter the anorectum and facilitate peek-a-boo of the anorectal condition. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the electric anorectal stapler with a multi-dimensional three-dimensional grasping structure in the utility model;

[0019] Figure 2It is an exploded view of the housing in the utility model;

[0020] Figure 3 It is an exploded view of the electric anorectal stapler with a multi-dimensional three-dimensional grasping structure in the utility model;

[0021] Figure 4 It is a cross-sectional view of the electric anorectal stapler with a multi-dimensional three-dimensional grasping structure in the utility model;

[0022] Figure 5 It is a partial schematic diagram of the nail support assembly in the utility model when it is in the released position;

[0023] Figure 6 It is a partial schematic diagram of the nail support assembly in the present invention when it is in the clamping position;

[0024] Figure 7 It is a schematic diagram of the support sleeve and the anal plug in the utility model in the use state;

[0025] Figure 8 It is a schematic diagram of the support sleeve and the peep sleeve in the utility model in the use state;

[0026] Fig. 9 This is one of the schematic diagrams of the support sleeve and the anvil assembly in the utility model in the use state;

[0027] Fig.10 This is the second schematic diagram of the support sleeve and the nail support assembly in the utility model in the use state.

[0028] In the figure: 1. left support frame; 2. right support frame; 3. compression spring; 4. adjusting nut; 5. adjusting nut cover; 6. fastening ring; 7. adjusting nut pin; 8. movable handle; 9. firing trigger link; 10. firing trigger torsion spring; 11. trigger groove pin; 12. safety block; 13. safety groove pin; 14. safety trigger link; 15. indicator needle; 16. motor stop safety; 17. indicator needle paddle; 18. motor output cam; 19. support shaft sleeve; 20. lever pin; 21. lever; 22. firing link; 23. firing link sliding pin; 24. small plate assembly; 25. locking ring; 26. connecting sleeve shaft; 2 7. Screws; 28. Annular knife pusher; 29. ​​Nail magazine; 30. Knife washer; 31. Anastomotic staples; 32. Anvil seat puncture shaft; 33. Protective cover; 34. Anvil seat cap; 35. Nail magazine sleeve; 36. Screw; 37. Pusher slot pin; 38. Adjustment block; 39. Screws; 40. Pusher connecting rod; 41. Left shell; 42. Drive motor; 43. Battery pack; 44. Right shell; 45. Display window; 46. Display window; 47. Anorectal tissue; 48. Support sleeve; 49. Peep sleeve; 50. Suture; 51. Side hole; 52. Nail outlet; 53. Clamping hole; 54. Nail magazine; 55. Anal plug. DETAILED DESCRIPTION

[0029] The utility model is further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0034] Please refer to Figure 1-10The present embodiment provides an electric anorectal stapler with a multi-dimensional stereoscopic gripping structure, preferably a disposable electric anorectal stapler with a multi-dimensional stereoscopic gripping structure, which is particularly suitable for clinical surgery that is disposable and does not need to be sterilized again. It includes a shell, a support frame, a kissing assembly, a screw 36, an anvil assembly, a drive motor 42, a firing assembly, a battery pack 43, an adjustment nut 4, a support sleeve 48, an anal plug 55 and a peep sleeve 49. The support frame is covered with a shell to effectively protect the support frame. The kissing assembly is installed on one end of the support frame. The screw 36 passes through the kissing assembly and is connected to the anvil assembly so that the anvil assembly and the kissing assembly are arranged opposite to each other. The drive motor 42 is used to drive the kissing assembly to cut and sew. The firing assembly is used to control the start and stop of the drive motor 42. The battery pack 43 is used to provide the working power of the drive motor 42. The adjustment nut 4 drives the screw 36 to rotate on the support frame so that the anvil assembly moves toward or away from the kissing assembly and can move between the clamping position and the release position. Before the operation, the support sleeve 48, the anal plug 55 and the peep sleeve 49 can be used to obtain the anorectal condition and anorectal tissue 47 to facilitate the operation.

[0035] Please refer to Figure 3-6 , the anastomosis assembly is installed on the support frame, and can cut the anorectal tissue 47. The outer shell is provided with an installation cavity, the end of the installation cavity passes through the end surface of the outer shell and a installation port is formed on the end surface of the outer shell, the support frame is installed in the installation cavity, and the anastomosis assembly is passed to the outside of the installation port, so as to effectively cut and suture the anorectal tissue 47. Specifically, the support frame includes a left support frame 1 and a right support frame 2, and the left support frame 1 and the right support frame 2 are assembled into a whole to support the anastomosis assembly, and a small plate assembly 24 is arranged on the support frame. The outer shell includes a left outer shell 41 and a right outer shell 44, the left outer shell 41 has a left handle, and the right outer shell 44 has a right handle. When the left outer shell 41 and the right outer shell 44 are assembled, the left handle and the right handle are assembled into a handle part.

[0036] Please refer to Figure 3-6 The screw 36 is rotatably mounted on the support frame, and the anvil assembly is arranged relative to the anastomosis assembly. As the screw 36 rotates, the anvil assembly can move between a clamping position and a release position to cooperate with the anastomosis assembly to clamp and release the anorectal tissue 47. A three-dimensional gripping structure (multi-dimensional three-dimensional gripping structure) for accommodating the anorectal tissue 47 is arranged between the anastomosis assembly and the anvil assembly. Thus, the relative positions of the anastomosis assembly and the anvil assembly on the support frame can be adjusted by rotating the screw 36 on the support frame, so that the anorectal tissue 47 can enter the three-dimensional gripping structure between the anastomosis assembly and the anvil assembly and clamp the anorectal tissue 47, and then the anastomosis assembly and the anvil assembly cooperate to cut and suture the anorectal tissue 47.

[0037] Please refer to Figure 3The stapler also includes an adjusting nut 4, which is used to enable the screw 36 to rotate on the support frame and move the anvil assembly between the clamping position and the release position, so that the rotation of the adjusting nut 4 on the support frame can drive the screw 36 to rotate and provide power for the movement of the anvil assembly. Specifically, a compression spring 3 is arranged between the adjusting nut 4 and the support frame. When the adjusting nut 4 rotates counterclockwise on the support frame, the compression spring 3 is compressed, and the screw 36 drives the anvil assembly to move away from the anastomosis assembly, thereby enabling the anvil assembly to move to the release position; when the adjusting nut 4 rotates clockwise on the support frame, the compression spring 3 is stretched, and the screw 36 drives the anvil assembly to move toward the anastomosis assembly, thereby enabling the anvil assembly to move to the clamping position and clamp the anorectal tissue 47 in the three-dimensional grasping structure.

[0038] Please refer to Figure 3 An adjusting nut cover 5 is provided on the end of the adjusting nut 4 away from the screw rod 36 , one end of the compression spring 3 is connected to the adjusting nut 4 through a fastening ring 6 , and the screw rod 36 is locked on the adjusting nut 4 through an adjusting nut pin 7 .

[0039] Please refer to Figure 3-6 The driving motor 42 is used to control the action of the anastomosis assembly, and the firing assembly is used to control the start and stop of the driving motor 42. The driving motor 42 is used to provide the kinetic energy required for the operation of the anastomosis assembly, and the firing assembly is used to control the start and stop of the driving motor 42, so that when the anorectal tissue 47 is cut, the cutting speed can be kept constant, which is conducive to improving the neatness of the cut anorectal tissue surface. When the anorectal tissue 47 is sutured, the nail pushing speed is kept constant, which can avoid the phenomenon of poor nail shape.

[0040] Please refer to Figure 3-4 The firing assembly includes a movable handle 8, a firing trigger connecting rod 9, a firing trigger torsion spring 10 and a firing connecting rod 22. The movable handle 8 can rotate on the support frame. The movable handle 8 is provided with a mounting groove for installing the firing trigger torsion spring 10. The firing trigger torsion spring 10 is installed on the mounting groove through a trigger groove pin 11. The two ends of the firing trigger torsion spring 10 are respectively connected to the movable handle 8 and the firing trigger connecting rod 9. The firing connecting rod 22 slides horizontally on the support frame through the firing connecting rod sliding pin 23. The rotation of the movable handle 8 can drive the firing connecting rod 22 to slide horizontally on the support frame. The adjusting block 38 is installed on the screw rod 36 through a screw 39, and the adjusting block 38 is transmission-connected to the firing connecting rod 22.

[0041] Please refer to Figure 5-6The three-dimensional grasping structure includes a staple outlet 52 and an anorectal tissue accommodating groove, the staple outlet 52 is formed on the anastomosis component, and the anorectal tissue accommodating groove is formed between the anastomosis component and the staple seat component, so that when the staple seat component moves to the clamping position, the anorectal tissue 47 can enter the anorectal tissue accommodating groove and clamp the anorectal tissue 47, and the staples 31 in the anastomosis component are pushed out of the staple outlet 52 to cut and suture the anorectal tissue 47 in the anorectal tissue accommodating groove. The three-dimensional grasping structure adopts 3D three-dimensional grasping technology, so that the anorectal tissue 47 to be sutured is in a wavy state, and the anorectal tissue 47 is not tight, thereby reducing damage to the anorectal tissue 47. Specifically, the anorectal tissue accommodating groove is formed by the end surface of the anvil assembly facing the suturing assembly being recessed toward the end surface of the anvil assembly facing away from the suturing assembly, even if the nail outlet 52 and the anorectal tissue accommodating groove are respectively formed on the suturing assembly and the anvil assembly, the structures of the suturing assembly and the anvil assembly are reasonably utilized, and more accommodation space is provided for the anorectal tissue 47, which is conducive to better reducing the damage to the anorectal tissue 47. More specifically, the nail outlet 52 is preferably an elliptical hole, which is conducive to improving the nail outlet efficiency and suturing effect.

[0042] Please refer to Figure 3 The anastomosis assembly includes a staple cartridge 29, a staple cartridge sleeve 35, and an annular knife pushing staple sheet component 28. The three-dimensional gripping structure is arranged between the staple cartridge 29 and the staple support assembly. The staple cartridge sleeve 35 has a receiving cavity for receiving staples 31. The staple cartridge 29 is connected to the staple cartridge sleeve 35 to cover the receiving cavity and connect the three-dimensional gripping structure with the receiving cavity. The driving motor 42 is used to drive the action of the annular knife pushing staple sheet component 28. In this way, by rotating the movable handle 8, the driving motor 42 drives the firing connecting rod 22 to drive the annular knife pushing staple sheet component 28 to slide on the support frame to push the annular knife and the staples 31 out, thereby completing the effective cutting and suturing of the anorectal tissue 47. Specifically, a side hole 51 is provided on the staple cartridge sleeve 35, through which the suture 50 can pass to complete the suturing action. In addition, a scale is arranged on the surface of the staple cartridge sleeve 35 along its length direction, which can facilitate the knowledge of the depth of the anastomosis assembly entering the anus, thereby improving efficiency. More specifically, the kiss-cutting assembly also includes a connecting sleeve shaft 26 and a push-piece connecting rod 40. The connecting sleeve shaft 26 is locked on the nail magazine sleeve 35 through a locking ring 25. The push-piece connecting rod 40 is connected to the connecting sleeve shaft 26. The push-piece connecting rod 40 is installed on the support frame through a push-piece groove pin 37. The screw 36 passes through the push-piece connecting rod 40, the connecting sleeve shaft 26, and the nail magazine sleeve 35 and is connected to the nail support seat assembly.

[0043] Please refer to Figure 3-5The nail magazine 29 and the nail magazine sleeve 35 are detachably connected. Preferably, the nail magazine 29 and the nail magazine sleeve 35 are clamped together. A clamping block is provided on the nail magazine 29, and a clamping hole 53 is provided on the nail magazine sleeve 35. When the nail magazine 29 is installed on the nail magazine sleeve 35, the clamping block is clamped with the clamping hole 53, thereby realizing the effective connection between the nail magazine 29 and the nail magazine sleeve 35. In another embodiment, the clamping block is provided on the nail magazine sleeve 35, and the clamping hole 53 is provided on the nail magazine 29.

[0044] Please refer to Figure 3 , 6 The anvil assembly includes an anvil 54, an anvil puncture shaft component 32 and an anvil cap 34, a washer ring 30 is mounted on the anvil 54, the anvil puncture shaft component 32 is connected to the anvil 54, the anvil cap 34 is covered on one end of the anvil 54 away from the anvil puncture shaft component 32, and a protective cover 33 is installed between the nail magazine 29 and the washer ring 30. Specifically, the anvil cap 34 is preferably conical, which is convenient for entering the anorectal area.

[0045] In this embodiment, the staple outlets 52 are formed on the staple cartridge 29 and arranged in two rows around the circumference of the staple cartridge 29. The staple outlets 52 are staggered, and the anorectal tissue accommodating grooves are formed on the side of the staple holder 54 facing the staple cartridge 29. In this way, the staples 31 can be inserted and removed from the anorectal tissue 47 to form two rows of staggered staples arranged in a circular pattern. At the same time, the inner anorectal tissue is cut off with a circular knife to perform a quick and easy anastomosis of the anorectal tissue 47. The 3D gripping technology provides precise compression of the anorectal tissue that needs to be sutured, reducing anorectal tissue damage. The gentle operation is optimized, and the compression force of the anorectal tissue is effectively reduced to a certain extent.

[0046] Please refer to Figure 3-4 The driving motor 42 is connected to the kiss cutting assembly through the transmission assembly to control the movement of the kiss cutting assembly. The transmission assembly includes a lever 21 and a cam mechanism. The lever 21 is rotatably mounted on the support frame. The driving motor 42 is used to drive the cam mechanism to rotate. As the cam mechanism rotates, the lever 21 can rotate on the support frame to drive the kiss cutting assembly to cut the anorectal tissue 47 and cooperate with the nail support assembly to complete the suturing action.

[0047] Please refer to Figure 3 The cam mechanism includes a motor output cam 18 and a support sleeve 19. The motor output cam 18 is connected to the output end of the driving motor 42. The motor output cam 18 rotates on the support frame through the support sleeve 19. The lever 21 is installed on the support frame through the lever pin 20.

[0048] Please refer to Figure 3-4The transmission assembly also includes a control device and a safety mechanism. The safety mechanism is electrically connected to the control device. The cam mechanism acts on the safety mechanism. The control device receives a signal from the safety mechanism and can control the drive motor 42 to stop working.

[0049] Please refer to Figure 3 The safety mechanism includes a safety block 12, a safety trigger link 14 and a motor stop safety 16. The safety block 12 is installed on the support frame through a safety groove pin 13 to achieve rotation. The safety block 12 is transmission-connected to the firing trigger link 9 through the safety trigger link 14. The motor stop safety 16 is used to turn off the drive motor 42.

[0050] Please refer to Figure 2 The stapler further includes a battery pack 43, which is electrically connected to the drive motor 42 to supply power to the drive motor 42. This arrangement makes the stapler easy to carry and use.

[0051] Please refer to Figure 2-3 An indicator needle 15 is installed on the support frame, an indicator needle paddle 17 is connected to the screw 36, a display window 45 is opened on the support frame, a display window 46 is installed on the display window 45, and the indicator needle 15 corresponds to the red indicator line at the display window 45, that is, the movement of the indicator needle 15 corresponds to the stroke of the red indicator line.

[0052] Please refer to Figure 2-3 , install the battery pack 43 on the stapler, turn on the power, open the safety block 12, and press the movable handle 8. The battery pack 43 provides power to rotate the drive motor 42, drive the motor output cam 18 to rotate, push the lever 21 to drive the firing link 22 to rotate, push the screw 36 forward, and make the stapler assembly realize the cutting and suturing functions of the stapler. Rotate the adjustment nut 4 counterclockwise, the screw 36 extends and drives the anvil assembly to move, increase the distance between the anvil assembly and the anastomosis assembly, and facilitate preoperative preparation. Rotate the adjustment nut 4 clockwise to retract the anvil puncture shaft component 32.

[0053] Please refer to Figure 2-3 The fixing part of the driving motor 42, the battery pack 43 and other components are fastened to the support frame by screws 27.

[0054] Please refer to Figure 7-10 The stapler also includes a support sleeve 48, an anal plug 55 and a peep sleeve 49. The support sleeve 48 is provided with a sleeve hole for accommodating anorectal tissue 47. The anal plug 55 is provided with a sleeve hole to enter the anorectum and push the anorectal tissue 47 to reset. The peep sleeve 49 is provided with a sleeve hole to enter the anorectum and facilitate peep into the anorectal condition.

[0055] Here’s how to use it:

[0056] 1. Take out the above-mentioned instrument (stapler) from the package using aseptic operation method.

[0057] 2. Please refer to Figure 7 , insert the anal plug 55 into the support sleeve 48 and insert it into the anal canal to restore the prolapsed mucosa of the hemorrhoidal tissue to its original position; remove the anal plug 55, and the prolapsed anorectal tissue 47 falls into the cavity of the support sleeve 48; use sutures 50 to fix the support sleeve 48 on the perianal skin.

[0058] 3. Please refer to Figure 8 Insert the peep sleeve 49 into the support sleeve 48, and make a purse string suture above the dentate line. The distance between the purse string suture line 50 and the dentate line is determined by the amount of prolapsed mucosa to be removed. It is recommended that the suture line 50 should be 2.5 to 4 cm above the dentate line. After the purse string is made, remove the peep sleeve 49.

[0059] 4. Turn the adjusting nut 4 counterclockwise to fully open the instrument and remove the protective cover 33.

[0060] 5. Please refer to Fig. 9 , insert the instrument into the anal canal until the anvil 54 extends above the purse string, fix the suture 50 on the anvil puncture shaft component 32, include the prolapsed mucosa and submucosal layer, so that it can slide along the anvil puncture shaft component 32. Use a hook wire rod to pull the end of the suture 50 out of the side hole 51 of the anastomosis assembly; tie a knot or fix the pulled suture 50 with surgical forceps.

[0061] 6. Please refer to Fig.10 , turn the adjusting nut 4 clockwise to close the device, confirm that the red indicator line in the display window 45 enters the green area, and the anastomosis component enters the anus at a scale of 4 cm. In this process, the suture 50 is appropriately tightened to allow the prolapsed mucosa to enter the cavity of the anastomosis component.

[0062] 7. Open the safety mechanism and hold the movable handle 8 to fire the device.

[0063] 8. After firing is completed, release the movable handle 8 to return it to its original position and reset the safety mechanism.

[0064] 9. Rotate the adjusting nut 4 counterclockwise for 1 / 2 to 3 / 4 of a turn. To prevent the anorectal tissue 47 from being caught by the anal nail seat 54, rotate the instrument alternately left and right, and slowly withdraw it while rotating.

[0065] 10. Use the peep sleeve 49 to check the anastomosis line. If there is bleeding, the doctor will handle it appropriately according to the situation. Check the anorectal tissue 47 specimen. If the specimen is incomplete, it may cause leakage and stenosis. The doctor will handle it appropriately according to the situation.

[0066] 11. Remove the support sleeve 48.

[0067] In addition, the stapler can also be used in conjunction with a mirror core sleeve and a mirror tube with holes.

[0068] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An electric anorectal stapler with a multi-dimensional three-dimensional grasping structure, characterized in that: include: Support frame; A kiss-cutting assembly, mounted on the support frame; A screw rod rotatably connected to the support frame and an anvil assembly arranged relative to the anastomosis assembly. With the rotation of the screw rod, the anvil assembly can move between a clamping position and a releasing position to cooperate with the anastomosis assembly to clamp and release the anorectal tissue. A three-dimensional grasping structure for accommodating the anorectal tissue is arranged between the anastomosis assembly and the anvil assembly; A driving motor and a firing assembly, wherein the driving motor is used to control the action of the kiss cutting assembly, and the firing assembly is used to control the start and stop of the driving motor.

2. The electric anorectal stapler with a multi-dimensional gripping structure according to claim 1, characterized in that: The three-dimensional grasping structure includes a nail outlet and an anorectal tissue accommodating groove, the nail outlet is formed on the anastomosis component, and the anorectal tissue accommodating groove is formed between the anastomosis component and the nail support component.

3. The electric anorectal stapler with a multi-dimensional gripping structure according to claim 2, characterized in that: The anorectal tissue accommodating groove is formed by the end surface of the anvil seat component facing the anastomosis component being recessed toward the end surface of the anvil seat component facing away from the anastomosis component.

4. The electric anorectal stapler with a multi-dimensional gripping structure according to claim 1, characterized in that: The anastomosis assembly includes a nail magazine, a nail magazine sleeve and an annular knife pushing nail piece component. The three-dimensional grasping structure is arranged between the nail magazine and the nail support assembly. The nail magazine sleeve has a receiving cavity for accommodating anastomosis staples. The nail magazine is connected to the nail magazine sleeve to cover the receiving cavity and connect the three-dimensional grasping structure with the receiving cavity. The driving motor is used to drive the action of the annular knife pushing the nail piece component.

5. The electric anorectal stapler with a multi-dimensional gripping structure according to claim 4, characterized in that: The nail magazine and the nail magazine sleeve are detachably connected.

6. The electric anorectal stapler with a multi-dimensional gripping structure according to claim 1, characterized in that: The driving motor is connected to the kiss-cutting assembly through a transmission assembly to control the movement of the kiss-cutting assembly. The transmission assembly includes a lever and a cam mechanism. The lever is rotatably mounted on a support frame. The driving motor is used to drive the cam mechanism to rotate. As the cam mechanism rotates, the lever can control the movement of the kiss-cutting assembly.

7. The electric anorectal stapler with a multi-dimensional gripping structure according to claim 6, characterized in that: The transmission assembly also includes a safety mechanism, which is connected to the cam mechanism and is used to shut down the drive motor.

8. The electric anorectal stapler with a multi-dimensional gripping structure according to claim 1, characterized in that: It also includes a battery pack, which is electrically connected to the drive motor to supply power to the drive motor.

9. The electric anorectal stapler with a multi-dimensional gripping structure according to claim 1, characterized in that: It also includes an adjusting nut, which is used to enable the screw rod to rotate on the support frame to move the dowel seat assembly between a clamping position and a releasing position.

10. The electric anorectal stapler with a multi-dimensional gripping structure according to claim 1, characterized in that: It also includes a support sleeve, an anal plug and a peep sleeve. The support sleeve is provided with a sleeve hole for accommodating anorectal tissue, the anal plug is provided with a sleeve hole to enter the anorectum and push the anorectal tissue to reposition, and the peep sleeve is provided with a sleeve hole to enter the anorectum and facilitate peep into the anorectal condition.

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