Anastomotic device for deep tissue closure

Abstract

The present invention discloses an anastomosis device for deep tissue closure, mainly relating to the field of surgical suturing. It comprises a sleeve, a sliding member, a connecting rod, a pressing member, a nail magazine mechanism, and a row of nails; the nail magazine mechanism is arranged below the sleeve, the sliding member is arranged inside the sleeve and slides forward and backward with the sleeve, the front end opening of the sleeve is provided with a pipe mouth end face perpendicular to the length direction of the sleeve, the front end of the sliding member is hinged to the bottom end of the connecting rod, the top end of the connecting rod is connected to the sleeve for sliding up and down, the pressing member is arranged at the front end pipe mouth, and a boss adapted to the width of a single nail is provided on its bottom side, the boss is adapted to the clearance groove, the top side of the limiting plate is fixedly connected to the cutting teeth, and when the sliding member is at the front end of its stroke, the limiting plate is located at the magazine mouth. The beneficial effect of the present invention is that it can be used for suturing deep tissue.

Description

Technical Field

[0001] The invention relates to the field of surgical suturing, in particular to an anastomosis device for closing deep tissues. Background Art

[0002] In surgical suturing, suturing multiple layers of tissue is a common and necessary procedure. For open surgeries, organs, muscle layers, membranes, and even layers of skin tissue may need to be sutured layer by layer. This is a time-consuming surgical procedure.

[0003] Existing suturing methods still rely primarily on the doctor's operation, resulting in low efficiency and a complete dependence on the doctor's skill level. There are already some stapler-related products and technologies on the market. Since staplers push out staples to achieve point suturing, each suturing point is independent and discontinuous, eliminating the possibility of a single suture point breaking and ruining the entire line. Furthermore, the mechanization of staplers can significantly reduce operation time and fundamentally avoid puncture injuries. Therefore, the advantages of staplers are still very clear. However, most of them are used for suturing epidermis or superficial tissues. Due to their complex internal structure, they are relatively large, making it difficult to operate in deep tissue and push staples deep into the tissue, which limits their application. Summary of the Invention

[0004] The object of the present invention is to provide an anastomotic device for deep tissue closure, which can be used for suturing deep tissue.

[0005] To achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions:

[0006] An anastomotic device for deep tissue closure, comprising a sleeve, a sliding member, a connecting rod, a pressing member, a staple cartridge mechanism, and a staple array;

[0007] The row of nails includes a plurality of nails arranged linearly in parallel;

[0008] The nail magazine mechanism is arranged below the sleeve, and includes a magazine tube located below the sleeve, the row of nails is arranged in the magazine tube, the front end of the magazine tube is provided with a magazine opening, the top side of the magazine opening is provided with a clearance groove in the center, and the bottom side of the magazine opening is provided with an outlet groove for discharging a single nail;

[0009] The top end face of the sliding plate is fixedly provided with a toothed plate, and the bottom end face of the sliding plate is fixedly provided with a toothed plate, and the toothed plate is fixedly provided with a toothed plate, and the top end face of the sliding plate is fixedly provided with a toothed plate, and the toothed plate is fixedly provided with a toothed plate, and the toothed plate is fixedly provided with a toothed plate, and the toothed plate is fixedly provided with a toothed plate, and the toothed plate is fixedly provided with a toothed plate, and the toothed plate is fixedly provided with a toothed plate, and the toothed plate is fixedly provided with a toothed plate,

[0010] The nail is made of degradable medical material.

[0011] A fixed clamp handle is fixed to the rear end of the sleeve, a movable clamp handle is hinged to the upper part of the fixed clamp handle, and a torsion spring is installed between the fixed clamp handle and the movable clamp handle, a strip hole is provided on the top of the movable clamp handle, the sleeve is a tubular part extending in a straight line, a sliding cavity is provided inside the sleeve along its length direction, the sliding part includes a hinge part, a slider part, and an extension part which are connected in sequence and integrally formed; the hinge part is exposed to the outside of the sliding cavity, a pin shaft is provided on the hinge part which cooperates with the notch of the strip hole, the slider part is located at the rear end of the sliding cavity, the slider part is adapted to the cross section of the sliding cavity, and the extension part The rear end of the extension part is fixed to the front end of the slider part. The extension part is a strip plate, and the extension part is fixed to the bottom of the slider part. The front end of the extension part is provided with a door-shaped groove, and the front end of the door-shaped groove is hinged with a horizontal axis. There are two connecting rods and they are fixed at both ends of the horizontal axis. The side wall of the sliding cavity is provided with a vertically extending guide groove, and the guide groove is arranged near the front end of the sleeve. A lifting shaft is provided in the guide groove, and the two ends of the lifting shaft are respectively inserted into the guide groove on the same side, and slide up and down with the guide groove on the same side. The top end of the connecting rod is connected to the lifting shaft, and the inner side of the connecting plate is rotatably connected to the lifting shaft.

[0012] A rear end pipe interface is provided at the rear of the sliding cavity, a front pipe interface is provided on the front end side wall of the pipe sleeve, an inner tube is provided in the sliding cavity and is located above the extension part, the front end of the inner tube passes through the money tube interface, the front end of the inner tube is exposed to the outside of the pipe sleeve and is provided with a flushing head, the rear end of the inner tube passes through the rear pipe interface, the rear end of the inner tube is exposed to the outside of the pipe sleeve and is connected to a medium source.

[0013] The silo is a hollow cylindrical structure consistent with the length direction of the sleeve, and a guide block fixedly connected to the front of the silo is provided, and the bottom of the guide block is fixedly connected to the silo, and the guide block is centrally fixed in the silo, and the top and both sides of the guide block have gaps with the inner wall of the silo, and the row of nails is placed on the guide block, and a push block located in the silo is provided behind the guide block, and the push block slides forward and backward with the silo, and a through hole corresponding to the cross-section of the guide block is provided on the push block. An adjustment plate is provided behind the push block, and the adjustment plate slides forward and backward with the silo, and a compression spring is provided between the adjustment plate and the rear end face of the push block, and the compression spring has an elastic force to push the push block forward, and an adjusting rod is fixed on the rear end face of the adjustment plate, and a screw sleeve is fixed on the rear end of the silo, and the adjusting rod passes through the screw sleeve and the two are threadedly connected.

[0014] The rear end of the adjusting rod is provided with a D-shaped ring, and the D-shaped ring includes a straight rod and a semicircular rod. The rear part of the adjusting rod is exposed outside the silo. The rear end of the adjusting rod is provided with a through hole, and the straight rod passes through the through hole and the two are clearance-fitted.

[0015] A slot is fixed on the bottom side of the sleeve, and the slot is located near the rear end edge. A plug plate extending in the same direction as the slot is fixed to the rear end of the silo, and the plug plate is located at the top of the silo. The plug plate is movably connected to the slot, and a screw hole is provided in the center of the plug plate. A plurality of screw holes are provided at equal intervals. A cut groove is provided in the center of the bottom side of the slot, and a plurality of countersunk grooves are provided on the cut groove. A screw is fitted with a screw thread in the screw hole, and a screw head is provided at one end of the screw, and the screw head is adapted to the countersunk hole.

[0016] A door-shaped sleeve is provided at the front end of the silo and is fixedly connected to its top surface. The inner distance of the side walls on both sides of the door-shaped sleeve is consistent with the width of the sleeve. The inner height of the door-shaped sleeve is adapted to the sleeve and the pressing piece. A tightening bolt that cooperates with its thread passes through the top of the door-shaped sleeve.

[0017] The nail includes a flat part in the middle, and the two ends of the flat part are symmetrically fixed with oblique parts. The outer end of the oblique part is inclined downward, and the outer end of the oblique part is provided with a downwardly bent hook. The width of the guide block is adapted to the width of the flat part. The silo includes a top surface, an upper oblique surface, a lower guide oblique surface, and a bottom surface in its cross-sectional state. The top surface is arranged on the top of the silo, the top surface is a plane and its width is adapted to the width of the flat part, the upper oblique surface is symmetrically arranged on both sides of the top surface, the outer side of the upper oblique surface is inclined downward, and the inclination amplitude is adapted to the amplitude of the oblique part. The top side of the lower guide oblique surface is connected to the bottom side of the upper oblique surface by an arc chamfer, and the bottom side of the lower guide oblique surface is inclined toward each other.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] This device allows the application of mechanized independent suturing technology to deep tissue suturing. Using a closure device instead of a needle prevents needlestick injuries. Furthermore, in practice, it can shorten the surgical procedure by at least 5 to 10 minutes for deep, common tissue suturing, significantly increasing the speed of incision closure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Attachment Figure 1 It is an overall schematic diagram of the present invention.

[0021] Attachment Figure 2 The present invention Figure 1 Magnified view of part A.

[0022] Attachment Figure 3 It is a schematic diagram of component disassembly of the present invention.

[0023] Attachment Figure 4 It is a connection diagram of the extension part, connecting rod and pressing piece of the present invention.

[0024] Attachment Figure 5 It is a schematic diagram of the internal structure of the present invention during the pressing process.

[0025] Attachment Figure 6 It is an enlarged view of the bottom perspective of the rear part of the present invention.

[0026] Attachment Figure 7 It is a schematic diagram of the internal structure of the nail magazine mechanism of the present invention (including the rows of nails).

[0027] Attachment Figure 8 It is a schematic diagram of the internal structure of the nail magazine mechanism of the present invention (excluding the row of nails).

[0028] Attachment Figure 9 It is a schematic diagram of the rotation of the D-shaped ring of the present invention.

[0029] Attachment Figure 10 It is a schematic diagram of the end faces of the chamber opening and the pipe opening during the pressing process of the present invention.

[0030] Reference numerals shown in the accompanying drawings:

[0031] 1. Fixed handle; 2. Movable handle; 3. Sleeve; 4. Connecting rod; 5. Pressing piece; 6. Nail magazine mechanism; 7. Nail row; 8. Sliding cavity; 9. Hinge; 10. Sliding block; 11. Extension; 12. Door groove; 13. Pin; 14. Strip hole; 15. Rear pipe interface; 16. Front pipe interface; 17. Guide groove; 18. Lifting shaft; 19. End face of pipe mouth; 20. Connecting plate; 21. Slide plate; 22. Cutting teeth; 23. Boss; 24. Limit plate ; 25. Bin; 26. Bin opening; 27. Guide block; 28. Give way groove; 29. ​​Exit groove; 30. Push block; 31. Through hole; 32. Adjustment plate; 33. Adjustment rod; 34. Screw sleeve; 35. D-ring; 36. Slot; 37. Insert plate; 38. Countersunk groove; 39. Screw; 40. Door sleeve; 41. Tightening bolt; 42. Flat part; 43. Oblique part; 44. Hook; 45. Notch; 46. Top surface; 47. Upper inclined surface; 48. Lower guide inclined surface. DETAILED DESCRIPTION

[0032] Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiments are only used to illustrate the present invention and are not used in limiting the scope of the present invention.In addition, should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the application equally.

[0033] Unless otherwise specified, the instruments, reagents, and materials used in the following examples are all conventional instruments, reagents, and materials available in the prior art and can be obtained through regular commercial channels. The experimental methods and detection methods used in the following examples are all conventional experimental methods and detection methods available in the prior art, unless otherwise specified.

[0034] Example: An anastomotic device for deep tissue closure

[0035] In order to enable mechanical suturing to close deep tissues, the overall internal structure and stapler structure of the stapler are redesigned so that the push-out and downward pressure of the staples can penetrate deep into the tissue.

[0036] The specific structure includes:

[0037] Fixed clamp handle 1, movable clamp handle 2, sleeve 3, sliding part, connecting rod 4, pressing part 5, nail magazine mechanism 6, nail row 7;

[0038] The fixed clamp handle 1 is fixedly connected to one end of the sleeve 3, and the two are integrally formed.

[0039] The sleeve 3 is a tubular part extending in a straight line. A sliding cavity 8 is provided inside the sleeve 3 along its length. The sliding cavity 8 is an open structure at both the front and rear ends of the sleeve. The sliding part is located in the sliding cavity 8 and slides back and forth along the sliding cavity 8. The sliding part is the main component for realizing transmission.

[0040] The sliding member includes a hinge portion 9, a slider portion 10, and an extension portion 11 which are sequentially connected and integrally formed;

[0041] The hinge part 9 is exposed to the outside of the sliding cavity 8, and the hinge part 9 is arranged at one end close to the fixed clamp handle 1. The hinge part 9 is provided with a horizontally fixed pin shaft 13, and the pin shaft 13 is arranged perpendicular to the sliding part and extends horizontally to the left and right. The top of the movable clamp handle 2 is provided with a U-shaped groove, and the hinge part 9 is inserted into the U-shaped groove. A strip hole 14 is provided on the side wall of the U-shaped groove. The pin shaft 13 passes through and is located in the strip hole 14. The pin shaft 13 cooperates with the notch of the strip hole 14. The movable clamp handle 2 is hinged to the fixed clamp handle 1, and the hinge position is located below the strip hole 14. A torsion spring is installed between the fixed clamp handle 1 and the movable clamp handle 2. The torsion spring is used to keep the movable clamp handle 2 away from the fixed clamp handle 1. Based on the above connection relationship, when the movable clamp handle 2 is operated to open and close relative to the fixed clamp handle 1, the sliding part can be controlled to slide back and forth in the sliding cavity 8. When grasping the movable clamp handle 2, the sliding member is controlled to slide toward the rear end (the rear end is the doctor's operating end, that is, the end where the fixed clamp handle 1 and the movable clamp handle 2 are provided).

[0042] The slider portion 10 is arranged at the rear end of the sliding cavity 8. The slider portion 10 is adapted to the cross-section of the sliding cavity 8 and can cooperate with the sliding cavity 8 to make the forward and backward sliding of the sliding part stable without shaking. The rear end of the extension portion 11 is fixed to the front end of the slider portion 10. The extension portion 11 is a strip plate. The extension portion 11 is fixed to the bottom of the slider portion 10, so the upper part of the extension portion 11 can make room for sufficient space, and other auxiliary components can be further installed.

[0043] For example, a rear end tube interface 15 is provided at the rear of the sliding cavity 8, a front end tube interface 16 is provided on the front end side wall of the tube sleeve, an inner tube is provided in the sliding cavity 8 and is located above the extension portion 11, the front end of the inner tube passes through the front end tube interface 16, and the front end of the inner tube is exposed to the outside of the tube sleeve and is provided with a flushing head, the rear end of the inner tube passes through the rear tube interface, the rear end of the inner tube is exposed to the outside of the tube sleeve and is connected to a medium source, which can be a medical flushing medium, so that the front end tissue is flushed during suturing. No other flushing facilities are needed. It is suitable for deep tissue treatment with a smaller spatial range.

[0044] The front end of the extension portion 11 is provided with a gate-shaped groove 12, the front end of the gate-shaped groove 12 is hinged with a horizontal axis, and the connecting rods 4 are two and fixed at both ends of the horizontal axis.

[0045] A vertically extending guide groove 17 is provided on the side wall of the sliding cavity 8. The guide groove 17 is arranged near the front end pipe mouth of the sleeve 3. There are two guide grooves 17 and they are symmetrically arranged on the sliding side groove walls of the groove. A lifting shaft 18 is provided in the guide groove 17. The two ends of the lifting shaft 18 are respectively inserted into the guide groove 17 on the same side, and slide up and down with the guide groove 17 on the same side. The top end of the connecting rod 4 is connected to the lifting shaft 18, so that the bottom end of the connecting rod 4 is pulled backward by sliding the sliding part backward, so that the lifting shaft 18 descends in the guide groove 17.

[0046] The front end of the sleeve 3 is provided with a pipe end surface 19 , and the pipe end is a vertical surface, that is, the pipe end surface 19 is perpendicular to the length direction of the sleeve 3 .

[0047] The pressing member 5 is arranged at the front end of the sleeve 3, and the pressing member 5 includes a connecting plate 20, a slide plate 21, cutting teeth 22, and a limiting plate 24;

[0048] The connecting plate 20 is arranged in a plane parallel to the extension portion 11. The connecting plate 20 extends through the front end of the sleeve 3. The inner end of the connecting plate 20 is sleeved on the outside of the lifting shaft 18 and is rotatably connected to the lifting shaft 18. The outer end of the connecting plate 20 is fixedly connected to the inner end surface of the slide 21. The slide 21 is located outside the sleeve 3. The inner end surface of the slide 21 contacts the end surface 19 of the pipe opening and is parallel to the end surface 19. This contact between the slide 21 and the pipe opening can limit the slide 21 to slide up and down only along the end surface 19 of the pipe opening.

[0049] Based on the hinged connection between the connecting plate 20 and the lifting shaft 18 and the cooperation between the inner end surface of the slide plate 21 and the end surface 19 of the pipe mouth, the pressing piece 5 can have an up and down stroke at the pipe mouth.

[0050] The cutting teeth 22 are fixed to the center of the bottom side of the slide plate 21. The cutting teeth 22 are arranged in the center relative to the sleeve 3. The cutting teeth 22 are provided with a boss 23 on the bottom side that is adapted to the width of a single nail, and are used to press the nail downward and out through the boss 23. The limiting plate 24 is fixedly connected to the bottom side of the cutting teeth 22. The limiting plate 24 is located in front of the boss 23. When the lifting shaft 18 is at the top of the guide groove 17, the pressing member 5 is at the top of its travel. At this time, the boss 23 is located above the nail magazine, ready to cut downward and does not contact the nail. The limiting plate 24 is located below the end face 19 of the sleeve 3, which can block the front end of the row of nails 7 and block the outermost nails.

[0051] The nail magazine mechanism 6 includes a magazine tube 25, which is a hollow cylindrical structure consistent with the length direction of the sleeve 3. The magazine tube 25 is provided with an open magazine opening 26 at its front end, and a magazine bottom is provided at the rear end of the magazine tube 25. The front part of the magazine tube 25 is provided with a guide block 27 fixedly connected thereto, and the bottom of the guide block 27 is fixedly connected to the magazine tube 25. The guide block 27 is fixed in the center of the magazine tube 25, and the bottom surface of the guide block 27 is fixed to the bottom surface of the magazine tube 25. The top side of the guide block 27 is fixed to the bottom surface of the magazine tube 25. There is a gap between the inner wall of the silo 25 and both sides. The row of nails 7 is placed on the guide block 27. The distance between the upper surface of the guide block 27 and the top surface 46 of the silo 25 is adapted to the thickness of the row of nails 7. A makeshift groove 28 is provided on the top side of the silo opening 26, and an outlet groove 29 is provided on the bottom side of the silo opening 26. The outlet groove 29 is used to push the nails downward out of the silo 25. The makeshift groove 28 is used to make way for the boss 23 and the cutting teeth 22 to fall. The front end of the guide block 27 is flush with the silo opening 26, and can always support the row of nails 7.

[0052] A push block 30 located in the silo 25 is provided at the rear of the guide block 27. The push block 30 slides forward and backward with the silo 25. The outer peripheral shape of the push block 30 is adapted to the cross-section of the silo 25. A through hole 31 corresponding to the cross-section of the guide block 27 is provided on the push block 30. The through hole 31 is clearance-matched with the guide block 27, so that the push block 30 can slide forward and backward with the silo 25 in a seamless manner, and ride on the guide block 27 when sliding forward without affecting its forward and backward stroke. The front end face of the push block 30 is in contact with the last nail of the row of nails 7, and is used to push the row of nails 7 forward against the limit plate 24, and continuously push the row of nails 7 forward when ejecting the nails.

[0053] The rear of the push block 30 is provided with an adjustment plate 32, and the adjustment plate 32 is located in the magazine tube 25. The shape of the adjustment plate 32 corresponds to the cross-section of the magazine tube 25, and the adjustment plate 32 slides with the magazine tube 25 back and forth. A compression spring is provided between the adjustment plate 32 and the rear end face of the push block 30, and the compression spring has an elastic force to push the push block 30 forward. An adjustment rod 33 is fixed on the rear end face of the adjustment plate 32, and a screw sleeve 34 is provided in the center of the bottom of the magazine to pass it. The adjustment rod 33 passes through the screw sleeve 34 and the two are threadedly connected. By rotating the adjustment rod 33, the position of the adjustment plate 32 in the magazine tube 25 can be adjusted forward and backward, thereby adjusting the elastic force of the compression spring. When the use of nails is significantly reduced, the pressure on the compression spring is adjusted forward to increase the propulsion force on the row of nails 7.

[0054] The rear portion of the adjusting rod 33 is exposed to the outside of the magazine tube 25. The rear end of the adjusting rod 33 is provided with a through hole, and a D-shaped ring 35 is passed through the through hole to fit with the clearance. The D-shaped ring 35 includes a straight rod and a semi-circular rod. The straight rod passes through the through hole, and the left and right positions are adjusted in the through hole by the straight rod, so that a person can easily rotate the adjusting rod 33. Since the adjusting rod 33 is below the sleeve 3 and the overall device is long and narrow, in order not to affect the long and narrow shape characteristics, the nail magazine mechanism 6 should also try to cooperate through the length direction, and the shape structure should be as narrow as possible. Therefore, the rotation adjustment of the adjusting rod 33 is not suitable for using a convenient knob or the like, and it is difficult to rotate it by hand. Therefore, this structure is specially designed. The D-shaped ring 35 is flattened backward and when the D-shaped ring 35 is pulled to one end of the straight rod, an eccentric handle structure is formed, which is convenient for a person to twist half a circle and then pull the D-shaped ring 35 to the other end of the straight rod for further rotation. In this way, the eccentric pulling and rotation can conveniently rotate the adjusting rod 33.

[0055] A slot 36 is fixed to the bottom side of the sleeve 3, and the slot 36 is located near the rear end edge. A plug plate 37 extending in the same direction as the slot 36 is fixed to the rear end of the silo 25, and the plug plate 37 is located at the top of the silo 25. The plug plate 37 is movably plugged into the slot 36, and a screw hole is provided in the center of the plug plate 37. A plurality of screw holes are provided at equal intervals. A groove is provided in the center of the bottom side of the slot 36, and the groove penetrates the bottom wall of the slot 36 to expose the screw hole on the plug plate 37. Since this mechanism is small, such a structure is convenient for clearly seeing what needs to be installed The groove is provided with two countersunk grooves 38, which are circular and spaced one to two times the spacing of the mounting holes. The screw hole is internally threaded with a screw 39, one end of which is provided with a screw head, which is adapted to the countersunk hole. The countersunk hole can limit the screw head. The width of the groove is adapted to the screw 39. The screw 39 can directly pass through the groove and engage with the screw hole, and achieve the engagement and fixation of the screw head through the countersunk groove 38. Through the above structure, the nail magazine mechanism 6 can be conveniently, quickly and reliably fixed to the bottom of the sleeve 3. Based on the overall narrow and long design of the device, this structure not only takes into account the convenience of installation, but is also relatively simple and reliable.

[0056] Because the silo 25 is slender, a door-shaped sleeve 40 fixedly connected to its top surface 46 is provided at the front end of the silo 25. The inner distance of the side walls of the door-shaped sleeve 40 is consistent with the width of the sleeve 3. The inner height of the door-shaped sleeve 40 is adapted to the sleeve 3 and the pressing piece 5, which is convenient for passing through the front end of the sleeve 3. A tightening bolt 41 is passed through the top of the door-shaped sleeve 40. The bottom end of the tightening bolt 41 is used to tighten against the top of the sleeve 3, so that the silo 25 and the front of the sleeve 3 fit tightly together, ensuring that the silo 25 and the sleeve 3 are stably and tightly matched when pressed down. Based on the structure of the silo 25 matching the sleeve 3, combined with the fixed structure of the above two, it can adapt to the matching of various types of silos 25 and sleeves 3, so that the device can be adapted to various types of nails 7 and silos 25.

[0057] The replaceable row of nails 7 is located within the cartridge 25 and is mounted on a guide block 27. The row of nails 7 comprises a plurality of nails arranged side by side, each linked by adhesive to form a row. The nails can be easily separated by cutting with the incision teeth 22, and the overall row structure facilitates replacement and storage. The nails are made of biodegradable medical material, enabling layer-by-layer sealing of deep tissue without the need for removal.

[0058] Not limited to this example, each nail may be connected into a row by retaining a small amount of connected parts without cutting them off.

[0059] Based on the fact that the cutting teeth 22 are centered and pressed downward, in order to improve the nailing effect, the cross-sectional shape of the barrel 25 and the shape of the nails are further designed as follows:

[0060] The nail includes a flat portion 42 in the middle, with oblique portions 43 symmetrically fixedly connected at both ends. The outer ends of the oblique portions 43 are tilted downward, giving the nail a tendency to bend downward. The flat portion 42 and the oblique portions 43 are integrally formed. A notch 45 is provided at the junction of the flat portion 42 and the oblique portion 43. The notch 45 is located on the bottom side of the nail to facilitate the oblique portions 43 to bend downward relative to each other, thereby closing together to engage tissue. The outer ends of the oblique portions 43 are provided with downwardly bent hooks 44 to form a sharp point for easier tissue penetration. During the nail's ejection process, the two oblique portions 43 close together downward to engage the tissue, thereby securing the nail to the tissue.

[0061] The width of the guide block 27 is adapted to the width of the flat portion 42 , so as to better accommodate the nail and support it.

[0062] The silo 25 includes a top surface 46, an upper inclined surface 47, a lower guide inclined surface 48, and a bottom surface in its cross-sectional state. The top surface 46 is arranged at the top of the silo 25. The top surface 46 is a plane and its width is adapted to the width of the flat portion 42. The top surface 46 is in contact with and parallel to the bottom surface of the sleeve 3. The upper inclined surfaces 47 are symmetrically arranged on both sides of the top surface 46. The outer side of the upper inclined surface 47 is inclined downward, mainly for adapting to the shape of the nails. The inclination amplitude is adapted to the amplitude of the inclined portion 43. Through the top surface 46 and the upper inclined surface 47, corresponding adaptability is obtained with the overall shape of the nails, and the storage of the row of nails 7 is realized in cooperation with the guide block 27.

[0063] The top side of the lower guide slope 48 is connected to the bottom side of the upper slope 47 through an arc chamfer. The bottom side of the lower guide slope 48 is inclined relative to each other, and is used to guide the inclined portion 43 of the nail relatively when it is pressed down, so that the inclined portion 43 is deformed.

[0064] Based on the coordination of the above shapes, the nail can achieve deformation and nail skin effects when it is pushed out.

[0065] Based on the above structure, the device can be used with nails of different sizes by replacing the nail magazine mechanism 6. Different nails use different nail magazine mechanisms 6, but they can all be installed on the same sleeve 3 for use, and the downward pressure is located in the middle position, regardless of the size of the nail. Therefore, both the installation structure and the nail ejection structure enable the device to be used with a variety of nail sizes.

Claims

1. An anastomotic device for deep tissue closure, characterized in that: It includes a sleeve, a sliding part, a connecting rod, a pressing part, a nail magazine mechanism, and a nail row; The nail row includes a plurality of nails arranged linearly and in parallel, and the nails are made of degradable medical materials; The nail magazine mechanism is arranged below the sleeve, and includes a magazine tube located below the sleeve, the row of nails is arranged in the magazine tube, the front end of the magazine tube is provided with a magazine opening, the top side of the magazine opening is provided with a clearance groove in the center, and the bottom side of the magazine opening is provided with an outlet groove for discharging a single nail; The sliding member is arranged in the sleeve and slides forward and backward with the sleeve. Both ends of the sleeve are open structures. The front end opening of the sleeve is provided with a pipe end face perpendicular to the length direction of the sleeve. The front end of the sliding member is hinged to the bottom end of the connecting rod, and the top end of the connecting rod is connected to the sleeve for up and down sliding. The pressing member is arranged at the front end pipe mouth, and the pressing member includes a connecting plate, a slide plate, cutting teeth, and a limit plate; the connecting plate passes through the front end pipe mouth of the sleeve, the inner side of the connecting plate is hinged to the top end of the connecting rod, the outer side of the connecting plate is vertically fixedly connected to the slide plate, and the inner end face of the slide plate is parallel to the pipe end face. The top side of the cutting tooth is fixedly connected to the bottom side of the slide plate, and the cutting tooth is provided with a boss adapted to the width of a single nail on its bottom side, and the boss is adapted to the give way groove. The top side of the limit plate is fixedly connected to the cutting tooth, and when the sliding member is at the front end of its stroke, the limit plate is located at the warehouse mouth; a sliding cavity is provided inside the sleeve along its length direction, and the sliding member includes a hinge part, a slider part, and an extension part which are connected in sequence and integrally formed; an inner tube is provided above the extension part in the sliding cavity, and the front end of the inner tube is exposed outside the sleeve and is provided with a flushing head.

2. The anastomotic device for deep tissue closure according to claim 1, characterized in that: The rear end of the sleeve is fixed with a fixed clamp handle, the upper part of the fixed clamp handle is hinged with a movable clamp handle, and a torsion spring is installed between the fixed clamp handle and the movable clamp handle, the top of the movable clamp handle is provided with a strip hole, the sleeve is a straight-line extended tubular part, the hinge part is exposed to the outside of the sliding cavity, the hinge part is provided with a pin shaft that matches the strip hole notch, the slider part is located at the rear end of the sliding cavity, the slider part is adapted to the cross-section of the sliding cavity, the rear end of the extension part is fixed to the front end of the slider part, and the extension part is a strip plate. The extension part is fixed to the bottom of the slider part, and the front end of the extension part is provided with a door-shaped groove, and the front end of the door-shaped groove is hinged with a horizontal axis. There are two connecting rods and they are fixed at both ends of the horizontal axis. The side wall of the sliding cavity is provided with a vertically extending guide groove, and the guide groove is arranged near the front end of the sleeve. A lifting shaft is provided in the guide groove, and the two ends of the lifting shaft are respectively inserted into the guide groove on the same side, and slide up and down with the guide groove on the same side. The top end of the connecting rod is connected to the lifting shaft, and the inner side of the connecting plate is rotatably connected to the lifting shaft.

3. The anastomotic device for deep tissue closure according to claim 2, characterized in that: A rear end pipe interface is provided at the rear of the sliding cavity, and a front end pipe interface is provided on the front end side wall of the pipe sleeve. The front end of the inner pipe passes through the front end pipe interface, and the rear end of the inner pipe passes through the rear pipe interface. The rear end of the inner pipe is exposed outside the pipe sleeve and is connected to a medium source.

4. The anastomotic device for deep tissue closure according to claim 1, characterized in that: The silo is a hollow cylindrical structure consistent with the length direction of the sleeve, and a guide block fixedly connected to the front of the silo is provided, and the bottom of the guide block is fixedly connected to the silo, and the guide block is centrally fixed in the silo, and the top and both sides of the guide block have gaps with the inner wall of the silo, and the row of nails is placed on the guide block, and a push block located in the silo is provided behind the guide block, and the push block slides forward and backward with the silo, and a through hole corresponding to the cross-section of the guide block is provided on the push block. An adjustment plate is provided behind the push block, and the adjustment plate slides forward and backward with the silo, and a compression spring is provided between the adjustment plate and the rear end face of the push block, and the compression spring has an elastic force to push the push block forward, and an adjusting rod is fixed on the rear end face of the adjustment plate, and a screw sleeve is fixed on the rear end of the silo, and the adjusting rod passes through the screw sleeve and the two are threadedly connected.

5. The anastomotic device for deep tissue closure according to claim 4, characterized in that: The rear end of the adjusting rod is provided with a D-shaped ring, and the D-shaped ring includes a straight rod and a semicircular rod. The rear part of the adjusting rod is exposed outside the silo. The rear end of the adjusting rod is provided with a through hole, and the straight rod passes through the through hole and the two are clearance-fitted.

6. The anastomotic device for deep tissue closure according to claim 4, characterized in that: A slot is fixed on the bottom side of the sleeve, and the slot is located near the rear end edge. A plug plate extending in the same direction as the slot is fixed to the rear end of the silo, and the plug plate is located at the top of the silo. The plug plate is movably connected to the slot, and a screw hole is provided in the center of the plug plate. A plurality of screw holes are provided at equal intervals. A cut groove is provided in the center of the bottom side of the slot, and a plurality of countersunk grooves are provided on the cut groove. A screw is fitted with a screw thread in the screw hole, and a screw head is provided at one end of the screw, and the screw head is adapted to the countersunk hole.

7. The anastomotic device for deep tissue closure according to claim 6, characterized in that: A door-shaped sleeve is provided at the front end of the silo and is fixedly connected to its top surface. The inner distance of the side walls on both sides of the door-shaped sleeve is consistent with the width of the sleeve. The inner height of the door-shaped sleeve is adapted to the sleeve and the pressing piece. A tightening bolt that cooperates with its thread passes through the top of the door-shaped sleeve.

8. The anastomotic device for deep tissue closure according to claim 4, characterized in that: The nail includes a flat part in the middle, and the two ends of the flat part are symmetrically fixed with oblique parts. The outer end of the oblique part is inclined downward, and the outer end of the oblique part is provided with a downwardly bent hook. The width of the guide block is adapted to the width of the flat part. The silo includes a top surface, an upper oblique surface, a lower guide oblique surface, and a bottom surface in its cross-sectional state. The top surface is arranged on the top of the silo, the top surface is a plane and its width is adapted to the width of the flat part, the upper oblique surface is symmetrically arranged on both sides of the top surface, the outer side of the upper oblique surface is inclined downward, and the inclination amplitude is adapted to the amplitude of the oblique part. The top side of the lower guide oblique surface is connected to the bottom side of the upper oblique surface by an arc chamfer, and the bottom side of the lower guide oblique surface is inclined toward each other.

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