Electric endoscope anastomat capable of being stably propelled

Abstract

The invention relates to the technical field of anastomats, in particular to a stably-propelled electric endoscope anastomat which comprises an anastomat gun body, a straight pipe fixed to one end of the anastomat gun body and an insertion pipe inserted to one end of the straight pipe. The healing promoting liquid is uniformly sprayed on a fresh cut wound surface, and the sprayed liquid can quickly form a protective film with strong adhesiveness on the wound surface, so that stimulation of seroperitoneum and instrument friction to the wound surface is effectively isolated, the risk of postoperative tissue adhesion is reduced, delayed healing of the wound surface due to overlong exposure time is avoided, immediate protection is provided for early healing of an anastomotic stoma, and the wound surface healing rate is increased. The defects that existing equipment can only conduct cutting anastomosis and cannot guarantee wound repairing conditions synchronously are overcome, the healing period can be shortened, the risk of complications such as anastomotic stoma errhysis and cracking is reduced, and the clinical requirement for efficient and safe healing is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of anastomat, in particular to a stable pushing electric endoscope anastomat. BACKGROUND

[0002] Anastomat is a device used in medicine to replace manual suturing, mainly used for the closure of stumps or incisions in endoscopic reconstruction of the digestive tract and organ resection surgery. The existing electric endoscope anastomat generally consists of an anastomat gun body, a straight pipe, a plug-in pipe, a nail cartridge seat, a nail abutting seat, a cutting knife and a stable pushing guide mechanism. It mainly drives the cutting knife to move along the pre-set guide rail in the nail cartridge seat through a motor-driven transmission system to realize the cutting and anastomosis action. During the pushing process, the sliding fit of the guide rail and the cutting knife and the constraint of the limiting structure on the transmission component ensure the uniform forward movement of the cutting knife, and the synchronous completion of the tissue cutting and titanium nail firing action. The titanium nail is ejected from the nail cartridge under the pushing force of the cutting knife, and is bent into a shape by abutting against the forming groove of the nail abutting seat, realizing the mechanical anastomosis and fixation of the tissue. The stability of the pushing process is ensured through the cooperation of mechanical guidance and power driving.

[0003] The existing electric endoscope anastomat can only realize tissue connection through the mechanical fixation of titanium nails, and cannot intervene in the fresh wound after anastomosis. After anastomosis, the wound formed by cutting and nailing is directly exposed, without physical protection barrier to isolate the external stimuli such as abdominal fluid accumulation and tissue friction, and without biological active ingredients to assist repair, completely relying on the patient's own tissue repair ability, resulting in slow healing process. Especially in the anastomosis scene of fragile or poor blood supply of gastrointestinal, pancreatic and biliary tissues, the mechanical contact between titanium nails and tissues is limited, and problems such as ischemia of nail surrounding tissue and poor adhesion are easy to occur, which not only prolongs the healing period, but also increases the risk of anastomotic bleeding, dehiscence and other complications, and is difficult to meet the clinical demand for efficient and safe healing. SUMMARY

[0004] The purpose of the present application is to provide a stable pushing electric endoscope anastomat to solve the problems raised in the background art.

[0005] In order to achieve the above object, the present application provides the following technical scheme: A stable propelling electric endoscope anastomat, comprising an anastomat gun body, a straight pipe fixed at one end of the anastomat gun body, and a plug-in pipe plugged at one end of the straight pipe, wherein the end of the plug-in pipe away from the straight pipe is provided with a nail cartridge seat for mounting a nail cartridge through a movable hinged mechanism, one side of the nail cartridge seat is rotatably mounted with a nail abutting seat for assisting the closure of titanium nails, the middle part of one side of the nail cartridge seat is provided with a cutting knife, the top end of the cutting knife is provided with a follow-up assembly, the middle part of the nail cartridge seat is embeddedly provided with a cutting groove, the outside of the nail abutting seat located on both sides of the cutting groove is provided with a plurality of titanium nail forming grooves, the inside of the nail cartridge seat close to the cutting groove is provided with a mounting cavity, and a liquid injection assembly is arranged between the mounting cavity and the cutting groove; the liquid injection assembly comprises a plurality of limiting through grooves and a plurality of suction cylinders, the plurality of limiting through grooves are equidistantly and throughly provided in the inside of the nail cartridge seat, and the provided area of the limiting through grooves is between the cutting groove and the mounting cavity, and the plurality of suction cylinders are equidistantly and fixedly installed on the bottom wall of the mounting cavity in the direction corresponding to the limiting through grooves.

[0006] Further, the inside of each limiting through groove is provided with a rotating block in an inclined manner, the inside of the rotating block close to the middle position is fixedly installed with a limiting rod, both ends of the limiting rod are embeddedly and rotatably installed on the inner wall of the mounting cavity, and one end of the rotating block extending into the inside of the bottom end of the cutting groove is rotatably installed with a rotating shaft.

[0007] Further, the outside of the rotating shaft is fixedly installed with an abutting wheel, one end of the rotating block away from the abutting wheel is throughly provided with a guide groove, the inside of the guide groove is slidably and clampedly installed with a connecting shaft, and the outside of the connecting shaft is rotatably installed with a connecting block.

[0008] Further, the top end middle part of the suction cylinder is fixedly installed with a limiting frame, the inside of the limiting frame is vertically and slidably installed with a limiting pull rod, the top end of the limiting pull rod is installed and fixed with the bottom end of the connecting block, the bottom end of the limiting pull rod is fixedly installed with a piston block, and the piston block is slidably and sealingly installed in the inside of the suction cylinder.

[0009] Further, the inside of the suction cylinder below the piston block is fixedly provided with a one-way liquid inlet valve pipe, the inside of one side of the nail cartridge seat is provided with a liquid storage cavity, and the input end of the one-way liquid inlet valve pipe is fixedly installed in the inside of the bottom end one side of the liquid storage cavity.

[0010] Further, the inside of both sides of the suction cylinder close to the one-way liquid inlet valve pipe is symmetrically and fixedly installed with two one-way liquid discharge valve pipes, the top end outside of the nail cartridge seat located on both sides of the cutting groove is equidistantly and embeddedly fixed with a plurality of discharge heads, and the input end of each discharge head is in communication and fixed with the output end of the one-way liquid discharge valve pipe on the corresponding side.

[0011] Further, the limiting pull rod is externally sleeved with a reset spring, two ends of the reset spring are fixedly installed at the bottom end outside of the limiting frame and the top end outside of the piston block.

[0012] Further, the follow-up assembly comprises a limiting sliding seat and a limiting seat, the limiting sliding seat is arranged at the top end outside of the cutting knife, the limiting seat is fixedly installed at the bottom end outside of the limiting sliding seat, the limiting seat is arranged in a C shape, and one side outside of the cutting knife abuts against one side inner wall of the limiting seat.

[0013] Further, the cutting knife is externally penetrated by a rotating rod at the top end, the rotating rod is fixedly installed at the inside of the limiting seat, the top end of the nail cartridge seat is externally penetrated by a sliding groove, the limiting sliding seat is slidingly and clampingly installed at the inside of the sliding groove, and one end of the limiting sliding seat is fixedly installed with a push rod.

[0014] Further, the nail cartridge seat is externally and symmetrically provided with two clamping holes at one end away from the plug-in pipe, the soft rubber head is fixedly installed at the outside of each clamping hole, the soft rubber buckle is fixedly installed at the outside of each clamping hole, one of the clamping holes is in conductive connection with the inside of the liquid storage cavity, and a rubber sheet is fixedly installed at the inside of the clamping hole.

[0015] Compared with the prior art, the present application has the following advantages: 1. The limiting sliding seat and the cutting knife are moved by the push rod, the liquid injection assembly is triggered to spray liquid in an orderly manner, the healing-promoting liquid is uniformly sprayed on the fresh cutting wound surface, the sprayed liquid can quickly form a protective film with strong adhesion on the wound surface, effectively isolates the stimulation of abdominal effusion and instrument friction on the wound surface, reduces the risk of postoperative tissue adhesion and avoids the delayed healing of the wound surface due to long exposure time, provides immediate protection for early healing of the anastomotic stoma, not only makes up for the shortcomings of the existing equipment that can only cut and anastomose but cannot simultaneously ensure the repair conditions of the wound surface, but also shortens the healing period and reduces the risk of complications such as anastomotic stoma bleeding and dehiscence, and meets the clinical demand for efficient and safe healing.

[0016] 2、By the setting of the follow-up assembly, when the cutting knife in the electric endoscope anastomat resets after cutting, if the cutting knife is affected by the resistance force, it can rotate around the rotating rod to pass the barrier, and the cutting knife will not be hard to resist the resistance wheel during the resetting process, thereby avoiding the liquid injection assembly being triggered again, which can effectively prevent the repeated spraying of healing promotion liquid, avoid the waste of active ingredients, and prevent the abnormal healing environment caused by excessive wetting of the wound. At the same time, this rotating barrier design will not produce a strong pulling force when the cutting knife resets and meets residual tissue or the edge of the anastomotic stoma, but will adapt to the tissue morphology by rotating itself, reducing the friction and pulling of fresh wounds and surrounding fragile tissues, further reducing the risk of tissue damage and protecting the integrity of the tissue around the anastomotic stoma. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present application; Figure 2 is a schematic diagram of the overall structure of the present application; Figure 1 is a schematic diagram of the overall structure of the present application; Figure 3 is a schematic diagram of the overall structure of the present application; Figure 4 is a schematic diagram of the overall structure of the present application; Figure 5 is a schematic diagram of the overall structure of the present application; Figure 6 is a schematic diagram of the overall structure of the present application; Figure 7 is a schematic diagram of the overall structure of the present application; Figure 8 is a schematic diagram of the overall structure of the present application; Figure 7 is a schematic diagram of the overall structure of the present application; Figure 9 is a schematic diagram of the overall structure of the present application; Figure 10 is a schematic diagram of the overall structure of the present application; Figure 11 is a schematic diagram of the overall structure of the present application;

[0018] The components represented by the numbers in the drawings are listed as follows: 1, an anastomat gun body; 2, a straight pipe; 3, a splicing pipe; 4, a nail cartridge seat; 5, a nail abutting seat; 6, a sliding groove; 7, a limiting sliding seat; 8, a limiting seat; 9, a cutting knife; 10, a rotating rod; 11, a push rod; 12, a cutting groove; 13, a titanium nail forming groove; 14, a soft rubber head; 15, a soft rubber buckle; 16, a liquid storage cavity; 17, a clamping hole; 18, a rubber sheet; 19, a limiting through groove; 20, a rotating block; 21, a mounting cavity; 22, a limiting rod; 23, a rotating shaft; 24, an abutting wheel; 25, a suction cylinder; 26, a limiting frame; 27, a limiting pull rod; 28, a connecting block; 29, a connecting shaft; 30, a piston block; 31, a one-way liquid inlet valve pipe; 32, a reset spring; 33, a one-way liquid outlet valve pipe; 34, a discharge head; 35, a guide groove. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0020] Embodiment one: please refer to Figure 1 - Figure 10 A stable electric endoscope anastomat includes an anastomat gun body 1, a straight pipe 2 fixed at one end of the anastomat gun body 1, and a splicing pipe 3 spliced at one end of the straight pipe 2. The end of the splicing pipe 3 away from the straight pipe 2 is provided with a nail cartridge seat 4 for mounting a nail cartridge through a movable hinged mechanism. A nail abutting seat 5 for assisting titanium nail closing is rotatably mounted on one side of the nail cartridge seat 4. A cutting knife 9 is arranged in the middle of one side of the nail cartridge seat 4. A cutting groove 12 is embedded in the middle of the nail cartridge seat 4. A plurality of titanium nail forming grooves 13 are arranged outside the cutting groove 12 on both sides of the nail abutting seat 5. A mounting cavity 21 is embedded in the middle of the nail cartridge seat 4. A liquid injection assembly is arranged between the mounting cavity 21 and the cutting groove 12. The liquid injection assembly includes a plurality of limiting through grooves 19 and a plurality of suction cylinders 25. The plurality of limiting through grooves 19 are equidistantly and perpendicularly arranged in the interior of the nail cartridge seat 4. The opening area of the limiting through grooves 19 is between the cutting groove 12 and the mounting cavity 21. The plurality of suction cylinders 25 are equidistantly and fixedly arranged on the bottom wall of the mounting cavity 21 in a direction corresponding to the limiting through grooves 19.

[0021] The interior of each limiting through groove 19 is obliquely provided with a rotating block 20. The interior of the rotating block 20 close to the middle position is fixedly provided with a limiting rod 22. The two ends of the limiting rod 22 are rotatably embedded in the inner wall of the mounting cavity 21. One end of the rotating block 20 extending into the interior of the bottom end of the cutting groove 12 is rotatably provided with a rotating shaft 23.

[0022] The outer part of the rotating shaft 23 is fixedly provided with a friction wheel 24. The end of the rotating block 20 away from the friction wheel 24 is provided with a guide slot 35. The inner part of the guide slot 35 is slidably provided with a connecting shaft 29. The outer part of the connecting shaft 29 is rotatably provided with a connecting block 28.

[0023] The middle part of the top end of the suction cylinder 25 is fixedly provided with a limiting frame 26. The inner part of the limiting frame 26 is vertically slidably provided with a limiting pull rod 27. The top end of the limiting pull rod 27 is fixedly connected with the bottom end of the connecting block 28. The bottom end of the limiting pull rod 27 is fixedly provided with a piston block 30. The piston block 30 is slidably and sealingly arranged in the inner part of the suction cylinder 25.

[0024] The inner part of the suction cylinder 25 is fixedly provided with a one-way liquid inlet valve pipe 31 below the piston block 30. The inner part of one side of the nail cartridge seat 4 is provided with a liquid storage cavity 16. The input end of the one-way liquid inlet valve pipe 31 is fixedly arranged in the inner part of the bottom end of the liquid storage cavity 16.

[0025] The inner part of the suction cylinder 25 is symmetrically fixedly provided with two one-way liquid outlet valve pipes 33 on both sides close to the one-way liquid inlet valve pipe 31. The top end of the nail cartridge seat 4 is fixedly provided with a plurality of outlet heads 34 at equal intervals on the outer part of both sides of the cutting groove 12. The input end of each outlet head 34 is fixedly connected with the output end of the one-way liquid outlet valve pipe 33 on the corresponding side.

[0026] The outer part of the limiting pull rod 27 is sleeved with a reset spring 32. The two ends of the reset spring 32 are fixedly arranged in the outer part of the bottom end of the limiting frame 26 and the outer part of the top end of the piston block 30, respectively.

[0027] The outer part of the end of the nail cartridge seat 4 away from the plug-in pipe 3 is provided with a soft rubber head 14. The outer part of the end of the nail cartridge seat 4 close to the soft rubber head 14 is symmetrically provided with two clamping holes 17. The outer part of the soft rubber head 14 close to each clamping hole 17 is fixedly provided with a soft rubber buckle 15. The soft rubber buckle 15 is clamped in the inner part of the corresponding clamping hole 17. One of the clamping holes 17 is in communication with the inner part of the liquid storage cavity 16. The inner part of the clamping hole 17 is fixedly provided with a rubber sheet 18.

[0028] In this embodiment, it can be divided into a preparation stage, a surgical operation stage, a liquid injection assembly triggering and liquid spraying stage, and each stage cooperates to realize stable cutting and anastomosis and wound protection. The specific implementation is as follows: I. Preoperative preparation stage (liquid filling and assembly) Nail bin and liquid preparation: First, the medical titanium nail is installed in the built-in nail bin of the nail bin seat 4, and the arrangement of the titanium nail is ensured to correspond to the titanium nail forming groove 13 of the nail seat 5. Then remove the soft rubber head 14 at the end of the nail bin seat 4 away from the plug-in pipe 3. The soft rubber head 14 realizes the double effect of blocking the storage cavity 16 and buffering the contact with the tissue through its own structural design: on the one hand, the soft rubber head 14 is clamped by the soft rubber buckle 15 and the clamping hole 17 of the nail bin seat 4, the edge of which can tightly fit the end surface of the nail bin seat 4 away from the plug-in pipe 3, and the inside of the clamping hole 17 communicated with the storage cavity 16 is provided with a rubber sheet 18, which is elastically deformed after being clamped by the soft rubber head 14, forming a double protection structure to prevent impurities from entering the storage cavity 16 and polluting the healing promoting liquid inside, and to prevent the healing promoting liquid from leaking through the clamping hole 17 during the movement of the instrument, ensuring the sterility and stability of the use amount of the healing promoting liquid; on the other hand, when the nail bin seat 4 needs to be inserted into the tissue gap, the soft rubber head 14 as the front end contact component of the nail bin seat 4 can be moderately deformed when contacting with the tissue due to its medical flexible material (such as silicone), buffering the contact force of the nail bin seat 4 advancing. Compared with the rigid structure of the front end of the existing anastomat nail bin seat 4, the soft rubber head 14 can avoid directly hard touching the fragile parts such as the gastric mucosa and the thin-walled tissue in the abdominal cavity, preventing tissue damage and bleeding caused by excessive contact force, reducing the trauma and discomfort of the patient when the instrument is inserted, and the flexible deformation will not interfere with the subsequent closing action of the nail bin seat 4 and the nail seat 5, ensuring that the sealing protection and tissue protection functions are stably exerted at the same time. At the same time, the healing promoting liquid used here is medical hyaluronic acid gel, which has no allergenicity and can form an adhesive protective film on the wound surface, and can also assist in epithelial cell repair, which is a maturely applied wound care material in clinical practice, and will be referred to as "healing promoting liquid" hereinafter.

[0029] Filling of the storage cavity 16: After extracting the healing promoting liquid with a sterile syringe, insert the needle into the inside of the storage cavity 16, squeeze the syringe to push the healing promoting liquid into the storage cavity 16, and pull out the needle after filling is completed. The rubber sheet 18 automatically seals to prevent liquid leakage. Finally, the sterilized soft rubber head 14 is re-clamped in the clamping hole 17 through the soft rubber buckle 15.

[0030] II. Intraoperative operation stage (tissue clamping and stable advancement) Instrument positioning and tissue clamping: the assembled anastomat is inserted into the patient's body through the endoscope channel, the movable hinged mechanism at the end of the plug-in pipe 3 is controlled through the anastomat gun body 1, the angle of the nail bin seat 4 is adjusted, and the tissues to be anastomosed are aligned with the clamping area between the nail bin seat 4 and the nail seat 5. The anastomat gun body 1 is operated to drive the nail seat 5 to rotate around the nail bin seat 4 to close, and the tissues are stably clamped between the two.

[0031] Stable pushing of cutting knife 9: The pushing rod 11 is driven by the power system built in the anastomat gun body 1, and the pushing rod 11 drives the limiting slide seat 7 to slide along the sliding groove 6 at the top end of the nail cartridge seat 4. The guiding effect of the sliding groove 6 on the limiting slide seat 7, in combination with the constraint of the limiting seat 8 and the rotating rod 10 on the cutting knife 9, makes the cutting knife 9 stably and uniformly advance along the cutting groove 12, avoids uneven cutting or titanium nail firing dislocation caused by pushing deviation, and guarantees the synchronous precision of cutting and anastomosis.

[0032] III. Triggering of liquid injection assembly and liquid injection stage (synchronous wound protection) Suction triggering of healing promotion liquid: After the cutting knife 9 stably advances a certain distance along the cutting groove 12, the side wall of the cutting knife 9 contacts the outer circumferential surface of the abutting wheel 24 at the bottom end of the cutting groove 12. The continuous pushing of the cutting knife 9 generates a horizontal pushing force, which is converted into a downward pressure on the abutting wheel 24. Since one end of the rotating block 20 is connected to the abutting wheel 24, and the middle part of the rotating block 20 is limited by the limiting rod 22, the downward pressure drives the rotating block 20 to rotate around the limiting rod 22 by a certain angle. When the rotating block 20 rotates, the end away from the abutting wheel 24 is lifted upward synchronously, thereby driving the connecting block 28 and the limiting pull rod 27 connected thereto to rise vertically, and finally pulling the piston block 30 at the bottom end of the limiting pull rod 27 to slide upward in the suction cylinder 25. At this time, the volume of the space below the piston block 30 in the suction cylinder 25 increases, forming a negative pressure environment, and the healing promotion liquid in the liquid storage cavity 16 is sucked into the suction cylinder 25 through the one-way liquid inlet valve pipe 31 (only allowing liquid to flow from the liquid storage cavity 16 to the suction cylinder 25); at the same time, the reset spring 32 outside the limiting pull rod 27 is stretched, storing elastic potential energy, and completing the suction preparation action of the healing promotion liquid.

[0033] During this process, the rotation design of the abutting wheel 24 can reduce the sliding friction with the cutting knife 9, avoid wear or pushing jam of the cutting knife 9; the fulcrum effect of the limiting rod 22 ensures the stable movement trajectory of the rotating block 20, avoids collision interference with the inner wall of the limiting through slot 19, and guarantees the precise triggering of the suction action.

[0034] Precise liquid spraying and wound protection: when the cutting knife 9 continues to advance and completely separates from the current resistance wheel 24, the area of the tissue has been cut by the cutting knife 9, and the titanium nails in the nail cartridge are ejected under the transmission of the pushing force of the cutting knife 9, and are bent into a "B" shape against the titanium nail forming groove 13 of the nail seat 5, realizing the mechanical anastomosis fixation of the tissue. At this time, the reset spring 32 releases the elastic potential energy, pushes the piston block 30 to slide downward in the suction cylinder 25, the pressure in the suction cylinder 25 rises, and the healing promoting liquid is delivered to the discharge head 34 at the top end of the nail cartridge seat 4 through the one-way liquid discharge valve pipe 33 (only allowing liquid to flow from the suction cylinder 25 to the discharge head 34), and is evenly sprayed on the fresh wound surface on both sides of the cutting groove 12 by the discharge head 34. The spraying time is precisely matched with the completion node of the cutting anastomosis, avoiding early spraying being scraped off by the cutting knife 9 or the non-cutting area being contaminated and wasted, at the same time, the healing promoting liquid quickly forms a protective film on the wound surface, isolates the stimulation and friction of the peritoneal effusion, assists the wound repair, reduces the risk of postoperative adhesion, and provides protection for early healing of the anastomotic stoma.

[0035] Embodiment two: please refer to Figure 7 Figure 11 The present embodiment further illustrates embodiment one, and the top end of the cutting knife 9 is provided with a follow-up assembly.

[0036] The follow-up assembly comprises a limiting sliding seat 7 and a limiting seat 8, the limiting sliding seat 7 is arranged outside the top end of the cutting knife 9, and the limiting seat 8 is fixedly installed outside the bottom end of the limiting sliding seat 7. The limiting seat 8 is arranged in a C shape, and one side of the cutting knife 9 is in contact with one side of the limiting seat 8.

[0037] The rotating rod 10 is rotatably installed outside the top end of the cutting knife 9, the rotating rod 10 is fixedly installed inside the limiting seat 8, the top end of the nail cartridge seat 4 is provided with a sliding groove 6, the limiting sliding seat 7 is slidingly and clampingly installed inside the sliding groove 6, and one end of the limiting sliding seat 7 is fixedly installed with a push rod 11.

[0038] In this embodiment, by adding the follow-up assembly at the top end of the cutting knife 9, the functions of stable force transmission in the cutting stage and flexible obstacle avoidance in the reset stage are realized, and the core is developed around the cooperation of the limiting sliding seat 7, the limiting seat 8, the rotating rod 10 and the sliding groove 6, which is as follows: I. Cutting stage: the follow-up assembly ensures stable advancement and effective cutting of the cutting knife 9 ​When the anastomat enters the tissue cutting link, the anastomat gun body 1 drives the push rod 11 to move linearly, and the push rod 11 drives the limiting slide seat 7 fixed thereto to slide along the sliding groove 6 at the top end of the nail cartridge seat 4. Since the limiting seat 8 is fixed at the bottom end of the limiting slide seat 7 and the limiting seat 8 has a C-shaped structure, the inner wall of one side thereof is in close contact with the outer wall of one side of the cutting knife 9, and at the same time, the top end of the cutting knife 9 is connected with the limiting seat 8 through the rotating rod 10. In this state, the advancing force received by the cutting knife 9 is directly transmitted through the abutting surface of the limiting seat 8, and the single-side abutting structure of the C-shaped limiting seat 8 forms a support to limit the rotation of the cutting knife 9 around the rotating rod 10. The cutting knife 9 can only advance linearly along the cutting groove 12 by sliding the limiting slide seat 7, and will not be deflected due to tissue resistance or fluctuation of the advancing force. This constraint ensures that the cutting edge of the cutting knife 9 always remains perpendicular to the tissue cutting surface, achieving smooth cutting of the tissue and avoiding incomplete cutting and tissue tearing caused by rotation of the cutting knife 9.

[0039] II. Resetting stage: flexible obstacle avoidance and anti-pulling protection of the follower assembly After cutting is completed, the anastomat gun body 1 drives the push rod 11 to move reversely, driving the limiting slide seat 7 and the cutting knife 9 to reset to the initial position along the sliding groove 6. If the cutting edge or body of the cutting knife 9 contacts the residual tissue at the edge of the anastomosis, the tail of the titanium nail or other fragile tissue in the abdominal cavity during the resetting process, it will be subjected to a reverse abutting force. At this time, since the limiting seat 8 has a C-shaped structure and only one side thereof is in abutment with the cutting knife 9, the other side has a rotating space reserved, the abutting force received by the cutting knife 9 will break the initial force balance, causing the cutting knife 9 to rotate around the rotating rod 10 in the same direction as the abutting force, achieving rotation over the obstacle. For example, when the side surface of the cutting knife 9 is abutted by the tissue, it will rotate to the side away from the abutting surface, and the cutting edge will avoid the tissue contact point, avoiding hard pushing or scraping of the tissue.

[0040] This rotation over the obstacle design has a dual core effect: first, it avoids hard abutment of the cutting knife 9 with the abutting wheel 24 during resetting. If the cutting knife 9 remains rigidly reset, it is easy to press the abutting wheel 24 again to trigger the liquid injection assembly, resulting in repeated spraying of the healing-promoting liquid. The rotation of the follower assembly can make the cutting knife 9 avoid the abutting wheel 24, preventing liquid waste and excessive wetting of the wound surface. Second, it reduces tissue pulling damage. When the cutting knife 9 encounters tissue obstacles, it rotates to conform to the tissue morphology rather than forcibly pushing or pulling the tissue. Especially for fresh wound tissue after anastomosis, the tissue fixed by the titanium nail is relatively fragile, which can avoid the risk of nail-encircling tissue falling off, secondary tearing of the wound surface, etc., ensuring the integrity of the tissue around the anastomotic stoma and further reducing the probability of postoperative complications such as bleeding and infection.

[0041] It is to be understood that the terminology used herein such as first and second, and the like, is only used to distinguish one entity or action from another entity or action, and does not necessarily require or imply any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0042] While embodiments of the present application have been shown and described with reference to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. The scope of the application is defined by the appended claims and their equivalents.

Claims

1. A stable propelling electric endoscope anastomat, comprising an anastomat gun body (1), a straight pipe (2) fixed at one end of the anastomat gun body (1), and a plug pipe (3) plugged at one end of the straight pipe (2), characterized in that: The plug-in pipe (3) is provided with a nail cartridge seat (4) for installing a nail cartridge at one end away from the straight pipe (2) through a movable hinge mechanism, one side of the nail cartridge seat (4) is rotatably provided with a nail abutting seat (5) for assisting the closure of titanium nails, the middle of one side of the nail cartridge seat (4) is provided with a cutting knife (9), the top end of the cutting knife (9) is provided with a follow-up assembly, the middle of the nail cartridge seat (4) is embeddedly provided with a cutting groove (12), the nail abutting seat (5) is provided with a plurality of titanium nail forming grooves (13) on the outside of both sides of the cutting groove (12), and the inside of the nail cartridge seat (4) close to the cutting groove (12) is embeddedly provided with a mounting cavity (21), and the mounting cavity (21) and the cutting groove (12) are provided with a liquid injection assembly therebetween. The liquid injection assembly comprises a plurality of limiting through grooves (19) and a plurality of suction cylinders (25), the plurality of limiting through grooves (19) are equidistantly and throughly provided in the inside of the nail cartridge seat (4), and the provided area of the limiting through groove (19) is between the cutting groove (12) and the mounting cavity (21), and the plurality of suction cylinders (25) are equidistantly and fixedly installed on the bottom wall of the mounting cavity (21) in a direction corresponding to the limiting through groove (19).

2. The stable advancing powered endoscopic anastomosis device according to claim 1, wherein: The inside of each limiting through groove (19) is provided with a rotating block (20) in an inclined manner, the inside of the rotating block (20) close to the middle position is throughly and fixedly provided with a limiting rod (22), both ends of the limiting rod (22) are embeddedly and rotatably installed on the inner wall of the mounting cavity (21), and one end of the rotating block (20) extending into the inside of the bottom end of the cutting groove (12) is rotatably installed with a rotating shaft (23).

3. The stable advancing powered endoscopic anastomosis device of claim 2, wherein: The outside of the rotating shaft (23) is throughly and fixedly provided with a resisting wheel (24), one end of the rotating block (20) away from the resisting wheel (24) is throughly provided with a guide groove (35), the inside of the guide groove (35) is slidably and clampedly provided with a connecting shaft (29), and the outside of the connecting shaft (29) is throughly and rotatably provided with a connecting block (28).

4. The stable advancing powered endoscopic anastomosis device according to claim 3, wherein: The top middle of the suction cylinder (25) is fixedly provided with a limiting frame (26), the inside of the limiting frame (26) is vertically and slidably provided with a limiting pull rod (27), the top end of the limiting pull rod (27) is fixedly installed with the bottom end of the connecting block (28), the bottom end of the limiting pull rod (27) is fixedly provided with a piston block (30), and the piston block (30) is slidably and sealingly installed in the inside of the suction cylinder (25).

5. The stable advancing powered endoscopic anastomosis device according to claim 4, wherein: The inside of the suction cylinder (25) below the piston block (30) is throughly and fixedly provided with a one-way liquid inlet valve pipe (31), and the inside of one side of the nail cartridge seat (4) is provided with a liquid storage cavity (16), and the input end of the one-way liquid inlet valve pipe (31) is throughly and fixedly installed in the inside of the bottom end of one side of the liquid storage cavity (16).

6. The stable advancing powered endoscopic anastomosis device according to claim 5, wherein: Two one-way drain valves (33) are symmetrically installed inside the suction cylinder (25) near the one-way inlet valve (31). Several discharge heads (34) are embedded and fixed at equal intervals on the top of the nail chamber seat (4) on both sides of the cutting groove (12). The input end of each discharge head (34) is connected and fixed to the output end of a one-way drain valve (33) on the corresponding side.

7. The stable advancing powered endoscopic anastomosis device according to claim 4, wherein: The limiting rod (27) is fitted with a return spring (32), and the two ends of the return spring (32) are respectively fixedly installed on the bottom of the limiting frame (26) and the top of the piston block (30).

8. The stable advancing powered endoscopic anastomosis device according to claim 1, wherein: The follower assembly includes a limiting slide (7) and a limiting seat (8). The limiting slide (7) is disposed outside the top of the cutting blade (9). The limiting seat (8) is fixedly installed outside the bottom of the limiting slide (7). The limiting seat (8) is C-shaped. The outer side of one side of the cutting blade (9) abuts against and fits against the inner wall of one side of the limiting seat (8).

9. The stable advancing powered endoscopic anastomosis device according to claim 8, wherein: A rotating rod (10) is rotatably mounted through the top of the cutting blade (9). The rotating rod (10) is fixedly mounted inside the limiting seat (8). A sliding groove (6) is opened through the top of the nail cartridge seat (4). The limiting slide (7) is slidably engaged inside the sliding groove (6). A push rod (11) is fixedly mounted at one end of the limiting slide (7).

10. The stable-propelling electric endoscope anastomat according to claim 5, characterized in that: The staple cartridge seat (4) is fitted with a soft rubber head (14) at the end away from the insertion tube (3). Two locking holes (17) are symmetrically opened at the end of the staple cartridge seat (4) near the soft rubber head (14). A soft rubber buckle (15) is fixedly installed on the outside of each locking hole (17) near the soft rubber head (14). The soft rubber buckle (15) is engaged with the corresponding locking hole (17) inside. One of the locking holes (17) is connected to the inside of the liquid storage chamber (16). A rubber sheet (18) is fixedly installed inside the locking hole (17).

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