CN115068030A

CN115068030A - Detachable endoscope anastomat

Info

Publication number: CN115068030A
Application number: CN202210766181.3A
Authority: CN
Inventors: 唐波; 龚烨; 印建新
Original assignee: Jiangsu Kangsai Medical Equipment Technology Co ltd
Current assignee: Jiangsu Kangsai Medical Equipment Technology Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-09-20
Anticipated expiration: 2042-06-30
Also published as: CN115068030B

Abstract

The invention discloses a detachable endoscopic anastomat, and relates to the technical field of surgical suture instruments. The multifunctional electric wrench is characterized by comprising a wrench body, wherein a handle is connected to one end of the wrench body in a rotating mode through a third rotating shaft, a pulling assembly is arranged at the lower end of the wrench body and comprises a rotating rod, a half gear and a pulling rod, a second transmission assembly used for driving the pulling rod and the handle to rotate synchronously is further arranged on the rotating rod, a handle in sliding fit with the wrench body is further arranged at one end of the wrench body, and a sliding assembly used for driving the wrench body to slide is arranged in the handle. The angle of handle and pulling rod is adjusted through second drive assembly for pulling rod and handle can keep synchronous rotation when carrying out the angle modulation, and the control range of the mode of this angle modulation is wider, makes things convenient for the doctor to adapt to different angle modulation, reduces the hard degree that this device was handed to the doctor, also makes the doctor install more stably when carrying out the operation of coincide simultaneously, improves the holistic practicality of device.

Description

Detachable endoscope anastomat

Technical Field

The invention relates to the technical field of surgical suture instruments, in particular to a detachable endoscopic anastomat.

Background

The anastomat is the first stapler in the world and is used for gastrointestinal anastomosis for nearly a century, and the tube-type anastomat is not widely used for gastrointestinal surgery until 1978. Generally, the anastomat is divided into a disposable anastomat or a multi-use anastomat, an imported anastomat or a domestic anastomat. The anastomat is equipment used for replacing the traditional manual suturing in medicine, and due to the development of modern science and technology and the improvement of manufacturing technology, the anastomat used clinically has reliable quality, convenient use, tightness and proper tightness, particularly has the advantages of quick suturing, simple and convenient operation, few side effects, few operation complications and the like, and can also be used for excising the focus of a tumor operation which cannot be excised in the past.

The Chinese patent with the publication number of CN106419983A discloses an endoscope anastomat and a nail bin assembly thereof, wherein the nail bin assembly comprises a nail bin box base, a nail abutting seat and a sliding block, the rear end of the nail abutting seat is hinged with the nail bin box base, the sliding block is movably connected to the rear end of the nail abutting seat through a connecting rod and can slide back and forth on the nail bin box base, and the connecting rod drives the nail abutting seat to open or close through the action of the sliding block; the nail bin assembly further comprises a cutting knife, two rows of slide ways are arranged on the upper end face of the nail abutting seat, a through groove is formed between the two rows of slide ways, a groove is formed in the head end portion of the cutting knife, balls matched with the slide ways are installed in the groove, and the cutting knife rolls along the slide ways through the balls to move back and forth in the through groove. The nail bin assembly can run stably, the problem of overlarge percussion force of the cutting knife is solved, and the endoscope anastomat is safe and reliable, good in tissue cutting and suturing effects, simple and convenient to operate, low in cost and suitable for popularization.

However, the above prior art has the following disadvantages:

(1) in the use process of the existing anastomat, because the holding angle at the handle is fixed, when a doctor uses the anastomat to perform anastomosis operation, the doctor needs to lift the hand to adapt to the holding angle, so that the working strength of the doctor is increased;

(2) in the use process of the existing anastomat, one hand of a doctor holds a trigger part of the anastomat, the other hand of the doctor is required to hold a connecting rod in the middle of the anastomat in order to ensure that the trigger pulling process can be stable, the doctor may get out of hand and touch parts such as a rotating button of the anastomat by mistake due to the fact that the connecting rod is thin, misoperation is caused, the two hands of the doctor are concentrated at one end, close to the trigger part, of the anastomat, and the clamping process of the anastomat is not stable enough.

Disclosure of Invention

The invention aims to provide a detachable endoscope anastomat, and the detachable endoscope anastomat is used for solving the technical problems that the holding angle of an anastomat is fixed and the clamping process of the anastomat is not stable enough in the prior art.

The invention provides a detachable endoscope anastomat, which comprises a gun body, wherein a nail bin assembly is arranged at the end part of the gun body, a transmission outer rod, a first transmission assembly and a steering assembly are sequentially arranged in the gun body, the transmission outer rod is used for driving the nail bin assembly to move, the first transmission assembly is used for driving the transmission outer rod to rotate, the steering assembly is used for adjusting the moving direction of the first transmission assembly, one end of the gun body is rotatably connected with a handle through a third rotating shaft, a wrenching assembly matched with the first transmission assembly in a transmission manner is arranged at the lower end of the gun body, the wrenching assembly comprises a rotating rod, a half gear and a wrenching rod, the head end of the rotating rod is rotatably connected with the gun body through the first rotating shaft, the half gear is fixedly arranged at the head end of the rotating rod, the head end of the wrenching rod is rotatably connected with the tail end of the rotating rod through a second rotating shaft, and the second rotating shaft penetrates through the tail end of the rotating rod, the rotating rod is also provided with a second transmission assembly for driving the pulling rod and the handle to synchronously rotate, one end of the gun body is also provided with a handle in sliding fit with the gun body, and a sliding assembly for driving the gun body to slide is arranged in the handle; the angle of handle and pulling rod is adjusted through second drive assembly for pulling rod and handle can keep synchronous rotation when carrying out the angle modulation, and through adjusting the slip subassembly on the handle, with the distance between regulation handle and the rifle body, make the doctor can be more comfortable when the rifle body is held on one hand, the handle is held on one hand.

Preferably, the first transmission assembly comprises a transmission inner rod, a first transmission rod, a second transmission rod, a third transmission rod and a differential gear set, the transmission inner rod is coaxially and slidably arranged in the transmission outer rod, first limit grooves are formed in two sides of the transmission inner rod, one end of the transmission outer rod is clamped in the first limit groove, the first transmission rod is coaxially and slidably arranged at one end of the transmission inner rod, the second transmission rod is rotatably arranged below the first transmission rod, the third transmission rod is rotatably arranged above the first transmission rod, a plurality of first pawls are arranged at one end, close to the transmission inner rod, of the first transmission rod, a first clamping groove matched with the first pawls in shape is formed in one end of the transmission inner rod, a first gear is coaxially arranged at one end of the transmission inner rod, a second gear and a third gear are coaxially arranged at one end, far away from the transmission inner rod, of the first transmission rod, a fourth gear is coaxially arranged at one end of the second transmission rod, a fifth gear is coaxially arranged at the other end of the second transmission rod, the fourth gear is positioned below the first gear and is meshed with the first gear, the fifth gear is positioned below the third gear and is meshed with the third gear when in contact, a first bevel gear is coaxially arranged at one end of the third transmission rod, a sixth gear is coaxially arranged at one end of the third transmission rod, which is far away from the first bevel gear, the sixth gear is arranged above the second gear and is meshed with the second gear, the length of the sixth gear is smaller than that of the second gear, the differential gear set is arranged at one end of the third transmission rod, one end of the differential gear set is meshed with the half gear, and the other end of the differential gear set is meshed with the first bevel gear; the power for the doctor to trip the pulling assembly can be converted into the power for driving the transmission outer rod to rotate through the first transmission assembly.

Preferably, the differential gear set includes a seventh gear, an eighth gear, a ninth gear, a tenth gear, an eleventh gear and a second bevel gear, which are respectively connected with the gun body in a rotating manner, the seventh gear is engaged with the half gear, the eighth gear is engaged with the seventh gear, the ninth gear is engaged with the eighth gear, the tenth gear and the ninth gear are coaxial, a ratchet mechanism for driving the tenth gear to rotate in a single direction is arranged in the tenth gear, the eleventh gear is engaged with the tenth gear, the second bevel gear is arranged coaxially with the eleventh gear, and the second bevel gear is engaged with the first bevel gear.

Preferably, the ratchet mechanism comprises a plurality of second pawls and second slots, the plurality of second pawls are circumferentially distributed on the ninth gear, the second slots are formed in the tenth gear, and the second pawls and the second slots are matched to enable the ninth gear to drive the tenth gear to rotate in a single direction; the ratchet mechanism can ensure that when the rotating rod is reset, the ninth gear rotates reversely and does not drive the tenth gear to rotate.

Preferably, the steering assembly comprises a sliding block, a shifting block and a wedge-shaped block, the sliding block is arranged at one end of the gun body in a sliding mode, the shifting block is fixedly arranged at one end of the sliding block, the wedge-shaped block is connected to one end of the first transmission rod in a rotating mode, a first sliding groove matched with the shape of the wedge-shaped block is formed in one end of the sliding block, and the wedge-shaped block is in sliding fit with the sliding block through the first sliding groove; the rotating direction of the transmission outer rod can be changed through the steering assembly.

Preferably, the second transmission assembly comprises a fourth rotating shaft, a first screw, a first transmission belt and a second transmission belt, the fourth rotating shaft is rotatably connected to one side of the rotating rod, the fourth rotating shaft and the first rotating shaft are coaxial, the first screw penetrates through one side of the gun body and is in threaded connection with the gun body, a first clamping block is fixedly mounted at one end of the first screw, a third clamping groove for accommodating the first clamping block is formed in one end of the fourth rotating shaft, the first transmission belt is sleeved on the second rotating shaft and the fourth rotating shaft, and the second transmission belt is sleeved on the third rotating shaft and the fourth rotating shaft; the angle of the handle and the pulling rod is adjusted through the second transmission assembly, so that the pulling rod and the handle can keep synchronous rotation when the angle is adjusted.

Preferably, the sliding assembly comprises a second screw and a second slider, the second screw is rotatably connected in the handle, the second slider is fixedly mounted at one end of the gun body, a second sliding groove for accommodating the second slider is formed in the handle, the upper end of the second slider is in threaded connection with the second screw, the second slider is in sliding fit with the handle through the second sliding groove, and a locking component for locking the second screw to rotate is further arranged at one end of the second screw; through the sliding assembly on the adjusting handle, the distance between the adjusting handle and the gun body is adjusted, so that a doctor can hold the gun body with one hand and hold the handle with the other hand more comfortably.

As a further preference, the locking component comprises a keycap, a plurality of T-shaped blocks are distributed on the circumference of one side of the keycap, a third sliding chute in sliding fit with the T-shaped blocks is formed in the outer side of the second screw rod, and a fourth sliding chute in sliding fit with the T-shaped blocks is formed in one end of the grip; the locking part can be aligned and locked after the second screw rod is rotated so as to limit the distance between the grip and the gun body.

Preferably, the handle and the grip are both provided with anti-skid grains; the friction between the hands of the doctor and the handle and the grip can be increased through the anti-slip lines, so that the doctor can hold the handle and the grip more stably.

Compared with the prior art, the invention has the beneficial effects that:

(1) the angle of handle and pulling rod is adjusted through second drive assembly for pulling rod and handle can keep synchronous rotation when carrying out the angle modulation, and the control range of the mode of this angle modulation is wider, makes things convenient for the doctor to adapt to different angle modulation, reduces the hard degree that this device was handed to the doctor, also makes the doctor install more stably when carrying out the operation of coincide simultaneously, improves the holistic practicality of device.

(2) Through adjusting the slip subassembly on the handle to adjust the distance between handle and the rifle body, make the doctor can grip the rifle body on one hand, more comfortable when gripping the handle on one hand, in order to satisfy the identical operation condition of difference, also make the clamping process of anastomat more stable.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic perspective view of a detachable endoscopic stapler according to the present invention;

FIG. 2 is a partial sectional view of the disassembled endoscopic stapler of the present invention;

FIG. 3 is an enlarged view of FIG. 2 at A;

FIG. 4 is a second partial sectional view of the detachable endoscopic stapler of the present invention;

FIG. 5 is an enlarged view of FIG. 4 at B;

FIG. 6 is a schematic view of a second transmission assembly in a first operating state;

FIG. 7 is a schematic view of a second operating condition of the second transmission assembly;

FIG. 8 is a cross-sectional view of the ratchet mechanism;

FIG. 9 is a schematic view of a portion of the second drive assembly;

fig. 10 is a partial structural view of the locking member.

Reference numerals:

1. a gun body; 2. a first transmission assembly; 3. a steering assembly; 4. pulling the assembly; 5. a second transmission assembly; 6. a grip; 7. a sliding assembly; 8. a differential gear set; 9. a ratchet mechanism; 10. a locking member; 11. a staple cartridge assembly; 12. a drive outer rod; 13. a handle; 14. an inner transmission rod; 15. a first limit groove; 16. a first card slot; 17. a first gear; 18. a first pawl; 21. a first drive lever; 22. a second transmission rod; 23. a third transmission rod; 24. a second gear; 25. a third gear; 26. a fourth gear; 27. a fifth gear; 28. a sixth gear; 29. a first bevel gear; 31. a slider; 32. shifting blocks; 33. a wedge block; 34. a first chute; 41. a rotating rod; 42. a half gear; 43. pulling a rod; 44. a first rotating shaft; 45. a second rotating shaft; 51. a fourth rotating shaft; 52. a first screw; 53. a first drive belt; 54. a second belt; 55. a third card slot; 61. a third rotating shaft; 71. a second screw; 72. a second slider; 73. a second chute; 81. a seventh gear; 82. an eighth gear; 83. a ninth gear; 84. a tenth gear; 85. an eleventh gear; 86. a second bevel gear; 91. a second pawl; 92. a second card slot; 101. a keycap; 102. a T-shaped block; 103. a third chute; 104. and a fourth chute.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 10, an embodiment of the invention provides a detachable endoscopic stapler, which includes a gun body 1, a magazine assembly 11 is disposed at an end of the gun body 1, a transmission outer rod 12, a first transmission assembly 2 and a steering assembly 3 are sequentially disposed in the gun body 1, the transmission outer rod 12 is used for driving the magazine assembly 11 to move, the first transmission assembly 2 is used for driving the transmission outer rod 12 to rotate, the steering assembly 3 is used for adjusting a movement direction of the first transmission assembly 2, one end of the gun body 1 is rotatably connected with a handle 13 through a third rotating shaft 61, a wrench assembly 4 in transmission fit with the first transmission assembly 2 is disposed at a lower end of the gun body 1, the wrench assembly 4 includes a rotating rod 41, a half gear 42 and a wrench rod 43, a head end of the rotating rod 41 is rotatably connected with the gun body 1 through a first rotating shaft 44, the half gear 42 is fixedly mounted at a head end of the rotating rod 41, a head end of the wrench rod 43 is rotatably connected to a tail end of the rotating rod 41 through a second rotating shaft 45, the second rotating shaft 45 penetrates through the tail end of the rotating rod 41, the rotating rod 41 is further provided with a second transmission assembly 5 for driving the pulling rod 43 and the handle 13 to synchronously rotate, one end of the gun body 1 is further provided with a handle 6 in sliding fit with the gun body 1, and the handle 6 is internally provided with a sliding assembly 7 for driving the gun body 1 to slide. The doctor can adjust the distance between the grip 6 and the gun body 1 by adjusting the sliding component 7 on the grip 6, so that the doctor can hold the gun body 1 with one hand and the handle 6 with the other hand more comfortably to meet different anastomosis operation conditions and the clamping process of the anastomat is more stable, in addition, when a doctor performs an anastomosis operation, the doctor usually holds the gun body 1 downward and uses the gun head of the gun body 1 downward, in the process, the small arm of the doctor tends to be lifted, which is relatively strenuous, and the angle of the handle 6 and the pulling rod 43 can be adjusted through the second transmission component 5, so that the pulling rod 43 and the handle 13 can keep synchronous rotation when adjusting the angle, thereby facilitating the doctor to adapt to different adjusting angles, reducing the labor intensity of the doctor holding the device, meanwhile, the device is more stable when the doctor performs anastomosis operation, and the overall practicability of the device is improved.

The first transmission component 2 comprises a transmission inner rod 14, a first transmission rod 21, a second transmission rod 22, a third transmission rod 23 and a differential gear set 8, wherein the transmission inner rod 14 is coaxially and slidably arranged in the transmission outer rod 12, two sides of the transmission inner rod 14 are provided with first limit grooves 15, one end of the transmission outer rod 12 is clamped in the first limit grooves 15, the first transmission rod 21 is coaxially and slidably arranged at one end of the transmission inner rod 14, the second transmission rod 22 is rotatably arranged below the first transmission rod 21, the third transmission rod 23 is rotatably arranged above the first transmission rod 21, one end of the first transmission rod 21 close to the transmission inner rod 14 is provided with a plurality of first pawls 18, one end of the transmission inner rod 14 is provided with first clamping grooves 16 matched with the first pawls 18 in shape, one end of the transmission inner rod 14 is coaxially provided with a first gear 17, one end of the first transmission rod 21 far away from the transmission inner rod 14 is coaxially provided with a second gear 24 and a third gear 25, one end of the second transmission rod 22 is coaxially provided with a fourth gear 26, the other end of the second transmission rod 22 is coaxially provided with a fifth gear 27, the fourth gear 26 is positioned below the first gear 17 and is meshed with the first gear 17, the fifth gear 27 is positioned below the third gear 25 and is meshed with the third gear 25 when in contact, one end of the third transmission rod 23 is coaxially provided with a first bevel gear 29, one end of the third transmission rod 23, which is far away from the first bevel gear 29, is coaxially provided with a sixth gear 28, the sixth gear 28 is positioned above the second gear 24 and is meshed with the second gear 24, the length of the sixth gear 28 is smaller than that of the second gear 24, the differential gear set 8 is arranged at one end of the third transmission rod 23, one end of the differential gear set 8 is meshed with a half gear 42, and the other end of the differential gear set 8 is meshed with the first bevel gear 29. The working principle of the second transmission assembly 5 can refer to the working principle of the related driving mechanism in the chinese patent publication No. CN 106419983A.

The differential gear set 8 comprises a seventh gear 81, an eighth gear 82, a ninth gear 83, a tenth gear 84, an eleventh gear 85 and a second bevel gear 86 which are respectively connected with the gun body 1 in a rotating manner, wherein the seventh gear 81 is meshed with the half gear 42, the eighth gear 82 is meshed with the seventh gear 81, the ninth gear 83 is meshed with the eighth gear 82, the tenth gear 84 and the ninth gear 83 are coaxial, a ratchet mechanism 9 for driving the tenth gear 84 to rotate in a single direction is arranged in the tenth gear 84, the eleventh gear 85 is meshed with the tenth gear 84, the second bevel gear 86 is arranged coaxially with the eleventh gear 85, and the second bevel gear 86 is meshed with the first bevel gear 29. Taking fig. 6 as an example, the seventh gear 81 drives the eighth gear 82 to rotate, the eighth gear 82 drives the ninth gear 83 to rotate, the ninth gear 83 drives the tenth gear 84 coaxial with the ninth gear to rotate in one direction through the ratchet mechanism 9, the tenth gear 84 drives the eleventh gear 85 to rotate, the eleventh gear 85 drives the second bevel gear 86 coaxial with the eleventh gear to rotate, the second bevel gear 86 drives the first bevel gear 29 to rotate, the first bevel gear 29 drives the sixth gear 28 coaxial with the first bevel gear to rotate, the sixth gear 28 drives the second gear 24 to rotate, the second gear 24 drives the third gear 25 coaxial with the second bevel gear to rotate, the third gear 25 drives the fifth gear 27 to rotate, the fifth gear 27 drives the fourth gear 26 coaxial with the fifth gear 27 to rotate, and the fourth gear 26 drives the first gear 17 to rotate, so that the inner transmission rod 14 can drive the outer transmission rod 12 to rotate through the first limiting groove 15.

The ratchet mechanism 9 includes a plurality of second pawls 91 and second engaging grooves 92, the plurality of second pawls 91 are circumferentially distributed on the ninth gear 83, the second engaging grooves 92 are formed in the tenth gear 84, and the second pawls 91 are engaged with the second engaging grooves 92 to enable the ninth gear 83 to drive the tenth gear 84 to rotate in a single direction. The ratchet mechanism 9 is used to enable the tenth gear 84 to rotate only in one direction, and when the rotating rod 41 is reset, the ninth gear 83 rotates in the opposite direction and does not drive the tenth gear 84 to rotate, so as to ensure the practicability of the whole device.

The steering assembly 3 comprises a sliding block, a shifting block 32 and a wedge block 33, the sliding block is arranged at one end of the gun body 1 in a sliding mode, the shifting block 32 is fixedly arranged at one end of the sliding block, the wedge block 33 is rotatably connected to one end of the first transmission rod 21, a first sliding groove 34 matched with the shape of the wedge block 33 is formed in one end of the sliding block, and the wedge block 33 is in sliding fit with the sliding block through the first sliding groove 34. The shifting block 32 on the steering component 3 is shifted upwards to drive the sliding block 31 to move upwards, so that the sliding block 31 can slide the first transmission rod 21 towards the transmission inner rod 14 through the matching of the first sliding groove 34 and the wedge block 33, at the moment, the first pawl 18 on the first transmission rod 21 is clamped into the first clamping groove 16 on the transmission inner rod 14, the first transmission rod can drive the transmission inner rod 14 to rotate synchronously with the transmission inner rod, the third gear 25 moves forwards to cancel the meshing with the fifth gear 27, and when the pulling component 4 is pulled by a doctor, the rotating process opposite to the rotating direction of the transmission outer rod 12 can be achieved.

The second transmission assembly 5 includes a fourth rotating shaft 51, a first screw 52, a first transmission belt 53 and a second transmission belt 54, the fourth rotating shaft 51 is rotatably connected to one side of the rotating rod 41, the fourth rotating shaft 51 and the first rotating shaft 44 are coaxial, the first screw 52 penetrates through one side of the gun body 1 and is in threaded connection with the gun body 1, a first clamping block is fixedly mounted at one end of the first screw 52, a third clamping groove 55 for accommodating the first clamping block is formed in one end of the fourth rotating shaft 51, the first transmission belt 53 is sleeved on the second rotating shaft 45 and the fourth rotating shaft 51, and the second transmission belt 54 is sleeved on the third rotating shaft 61 and the fourth rotating shaft 51. When a doctor carries out anastomosis operation, the doctor usually holds the gun body 1 downwards, uses the gun head of the gun body 1 downwards, in the process, the physician's arm tends to be lifted, which is a relatively strenuous task, and the angle of the handle 6 and the pulling rod 43 can be adjusted by the second transmission assembly 5, the physician can rotate the first screw 52, so that the first screw 52 drives the fourth rotating shaft 51 to rotate, the fourth rotating shaft 51 drives the second rotating shaft 45 to rotate through the first transmission belt 53, and the second transmission belt 54 drives the third rotating shaft 61 to rotate, so that the pulling rod 43 and the handle 13 can keep synchronous rotation during angle adjustment, the angle adjustment mode has wider adjustment range, is convenient for doctors to adapt to different adjustment angles, reduces the labor intensity of the doctors for holding the device, meanwhile, the device is more stable when the doctor performs anastomosis operation, and the overall practicability of the device is improved.

The sliding assembly 7 comprises a second screw rod 71 and a second sliding block 72, the second screw rod 71 is rotatably connected in the handle 6, the second sliding block 72 is fixedly installed at one end of the gun body 1, a second sliding groove 73 for accommodating the second sliding block 72 is formed in the handle 6, the upper end of the second sliding block 72 is in threaded connection with the second screw rod 71, the second sliding block 72 is in sliding fit with the handle 6 through the second sliding groove 73, and a locking component 10 for locking the rotation of the second screw rod 71 is further arranged at one end of the second screw rod 71. Doctor's accessible is adjusted sliding assembly 7 on the handle 6, with adjust the distance between handle 6 and the rifle body 1, at the in-process of adjusting the distance, because second slider 72 and second screw rod 71 threaded connection, alright make second slider 72 slide in second spout 73, make the rifle body 1 with second slider 72 fixed connection can keep away from handle 6, reach the effect of adjusting the distance between handle 6 and the rifle body 1, make the doctor can hold the rifle body 1 in one hand, it is more comfortable when holding handle 6 in one hand, in order to satisfy the different anastomotic surgery condition, also make the clamping process of anastomat more stable.

The locking component 10 comprises a key cap 101, a plurality of T-shaped blocks 102 are distributed on the circumference of one side of the key cap 101, a third sliding groove 103 in sliding fit with the T-shaped blocks 102 is formed in the outer side of the second screw 71, and a fourth sliding groove 104 in sliding fit with the T-shaped blocks 102 is formed in one end of the handle 6. The locking component 10 can be aligned and locked after the second screw rod 71 rotates to limit the distance between the grip 6 and the gun body 1, in the process of adjusting the distance, the keycap 101 on the locking component 10 is firstly pulled out to slide out of the fourth sliding groove 104 on the grip 6, then the keycap 101 is rotated, and the keycap 101 can drive the second screw rod 71 to rotate in the rotating process because the T-shaped block 102 is arranged in the third sliding groove 103 in a sliding manner.

The handle 13 and the grip 6 are both provided with anti-skid grains. The friction between the hand of the doctor and the handle 13 and the grip 6 can be increased by the arrangement of the anti-slip grains, so that the doctor can hold the handle 13 and the grip 6 more stably.

The working principle is as follows: before using the device, the nail bin assembly 11, the grip 6, the gun body 1 and the related transmission assembly on the device are assembled, then a doctor can adjust the distance between the grip 6 and the gun body 1 by adjusting the sliding assembly 7 on the grip 6, in the process of adjusting the distance, firstly pull out the key cap 101 on the locking component 10 to slide out of the fourth chute 104 on the grip 6, then rotate the key cap 101, because the T-shaped block 102 is arranged in the third chute 103 in a sliding way, the key cap 101 can drive the second screw 71 to rotate in the rotating process, because the second slide block 72 is in threaded connection with the second screw 71, the second slide block 72 can slide in the second chute 73, so that the gun body 1 fixedly connected with the second slide block 72 can be far away from the grip 6, the effect of adjusting the distance between the grip 6 and the gun body 1 is achieved, and the doctor can hold the gun body 1, It is more comfortable when gripping handle 6 on one hand to satisfy the identical operation condition of difference, also make the clamping process of anastomat more stable, then the doctor uses this device to coincide the operation to patient, wherein, cutting in the centre gripping of nail storehouse subassembly 11 to the affected part and the nail storehouse subassembly 11, the operating procedure of involution is prior art, no redundant description is given here, and nail storehouse subassembly 11 presss from both sides tight affected part back, and the outer pole 12 of transmission of 11 motion of drive nail storehouse subassembly, its rotation process's embodiment is as follows:

taking fig. 6 as an example, the doctor holds the handle 13 and pulls the pulling rod 43 to rotate the rotating rod 41 around the axis of the first rotating shaft 44, so that the half gear 42 on the rotating rod 41 rotates, the half gear 42 meshes with the seventh gear 81 on the differential gear set 8 to drive the differential gear set 8 to move, the seventh gear 81 drives the eighth gear 82 to rotate, the eighth gear 82 drives the ninth gear 83 to rotate, the ninth gear 83 drives the tenth gear 84 coaxial with the ninth gear 83 through the ratchet mechanism 9 to rotate in one direction, the tenth gear 84 drives the eleventh gear 85 to rotate, the eleventh gear 85 drives the second bevel gear 86 coaxial with the eleventh gear to rotate, the second bevel gear 86 drives the first bevel gear 29 to rotate, the first bevel gear 29 drives the sixth gear 28 coaxial with the ninth gear to rotate, the sixth gear 28 drives the second gear 24 to rotate, the second gear 24 rotates to drive the third gear 25 coaxial with the second gear 24 to rotate, the third gear 25 rotates to drive the fifth gear 27 to rotate, the fifth gear 27 drives the fourth gear 26 coaxial with the fifth gear to rotate, the fourth gear 26 drives the first gear 17 to rotate, so that the transmission inner rod 14 can drive the transmission outer rod 12 to rotate through the first limiting groove 15, the middle part of the transmission outer rod 12 is provided with threads, so that the transmission outer rod 12 can be matched with the operation steps of cutting and sewing in the nail bin assembly 11 through the rotation of the threads, and the linkage mode of the transmission outer rod 12 and the nail bin assembly 11 is not shown in the figure, which is the prior art and is not described herein in detail;

taking fig. 7 as an example, when the transmission outer rod 12 needs to be rotated reversely, the shifting block 32 on the steering assembly 3 can be shifted upwards to drive the sliding block 31 to move upwards, so that the sliding block 31 can slide the first transmission rod 21 to the transmission inner rod 14 through the cooperation of the first sliding groove 34 and the wedge block 33, at this time, the first pawl 18 on the first transmission rod 21 is clamped into the first clamping groove 16 on the transmission inner rod 14, so that the first transmission rod can drive the transmission inner rod 14 to rotate synchronously therewith, and the third gear 25 moves forward to cancel the engagement with the fifth gear 27, so that when the pulling assembly 4 is pulled by the doctor, the rotation process opposite to the rotation direction of the transmission outer rod 12 can be achieved, which is not described in more detail, and the above operation steps can refer to the working principle of the related driving mechanism in the chinese patent publication No. CN 106419983A.

When a doctor carries out anastomosis operation, the doctor usually holds the gun body 1 downwards, uses the gun head of the gun body 1 downwards, in the process, the physician's arm tends to be lifted, which is a relatively strenuous task, and the angle of the handle 6 and the pulling rod 43 can be adjusted by the second transmission assembly 5, the physician can rotate the first screw 52, so that the first screw 52 drives the fourth rotating shaft 51 to rotate, the fourth rotating shaft 51 drives the second rotating shaft 45 to rotate through the first transmission belt 53, and the second transmission belt 54 drives the third rotating shaft 61 to rotate, so that the pulling rod 43 and the handle 13 can keep synchronous rotation when adjusting the angle, the angle adjusting mode has wider adjusting range, is convenient for doctors to adapt to different adjusting angles, reduces the labor intensity of the doctors holding the device, meanwhile, the device is more stable when the doctor performs anastomosis operation, and the overall practicability of the device is improved.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a dismantlement formula chamber mirror anastomat, includes rifle body (1), the tip of rifle body (1) is provided with nail storehouse subassembly (11), set gradually transmission outer pole (12), first transmission subassembly (2) and turn to subassembly (3) in rifle body (1), transmission outer pole (12) are used for driving nail storehouse subassembly (11) and move, first transmission subassembly (2) are used for driving transmission outer pole (12) and rotate, turn to subassembly (3) and be used for adjusting the direction of motion of first transmission subassembly (2), its characterized in that: one end of the gun body (1) is rotatably connected with a handle (13) through a third rotating shaft (61), the lower end of the gun body (1) is provided with a pulling assembly (4) in transmission fit with the first transmission assembly (2), the pulling assembly (4) comprises a rotating rod (41), a half gear (42) and a pulling rod (43), the head end of the rotating rod (41) is rotatably connected with the gun body (1) through a first rotating shaft (44), the half gear (42) is fixedly installed at the head end of the rotating rod (41), the head end of the pulling rod (43) is rotatably connected with the tail end of the rotating rod (41) through a second rotating shaft (45), the second rotating shaft (45) penetrates through the tail end of the rotating rod (41), the rotating rod (41) is further provided with a second transmission assembly (5) for driving the pulling rod (43) and the handle (13) to synchronously rotate, one end of the gun body (1) is further provided with a grip (6) in sliding fit with the gun body (1), a sliding component (7) for driving the gun body (1) to slide is arranged in the grip (6).

2. The detachable endoscopic stapler according to claim 1, wherein: the first transmission assembly (2) comprises a transmission inner rod (14), a first transmission rod (21), a second transmission rod (22), a third transmission rod (23) and a differential gear set (8), the transmission inner rod (14) is coaxially arranged in the transmission outer rod (12) in a sliding mode, first limiting grooves (15) are formed in two sides of the transmission inner rod (14), one end of the transmission outer rod (12) is connected in the first limiting grooves (15) in a clamping mode, the first transmission rod (21) is coaxially arranged at one end of the transmission inner rod (14) in a sliding mode, the second transmission rod (22) is rotatably arranged below the first transmission rod (21), the third transmission rod (23) is rotatably arranged above the first transmission rod (21), a plurality of first pawls (18) are arranged at one end, close to the transmission inner rod (14), of the transmission inner rod (14) is provided with a first clamping groove (16) matched with the first pawls (18) in shape, a first gear (17) is coaxially arranged at one end of the transmission inner rod (14), a second gear (24) and a third gear (25) are coaxially arranged at one end, far away from the transmission inner rod (14), of the first transmission rod (21), a fourth gear (26) is coaxially arranged at one end of the second transmission rod (22), a fifth gear (27) is coaxially arranged at the other end of the second transmission rod (22), the fourth gear (26) is positioned below the first gear (17) and meshed with the first gear (17), the fifth gear (27) is positioned below the third gear (25) and meshed with the third gear (25) when in contact, a first bevel gear (29) is coaxially arranged at one end of the third transmission rod (23), a sixth gear (28) is coaxially arranged at one end, far away from the first bevel gear (29), of the third transmission rod (23), the sixth gear (28) is arranged above the second gear (24) and meshed with the second gear (24), the length of the sixth gear (28) is smaller than that of the second gear (24), the differential gear set (8) is arranged at one end of the third transmission rod (23), one end of the differential gear set (8) is meshed with the half gear (42), and the other end of the differential gear set (8) is meshed with the first bevel gear (29).

3. The detachable endoscopic stapler according to claim 2, wherein: the differential gear set (8) comprises a seventh gear (81), an eighth gear (82), a ninth gear (83), a tenth gear (84), an eleventh gear (85) and a second bevel gear (86) which are respectively connected with the gun body (1) in a rotating way, the seventh gear (81) meshes with the half gear (42), the eighth gear (82) meshes with the seventh gear (81), the ninth gear (83) is meshed with the eighth gear (82), the tenth gear (84) is coaxial with the ninth gear (83), a ratchet mechanism (9) for driving the tenth gear (84) to rotate in a single direction is arranged in the tenth gear (84), the eleventh gear (85) is meshed with the tenth gear (84), the second bevel gear (86) is coaxially disposed with the eleventh gear (85), and the second bevel gear (86) is meshed with the first bevel gear (29).

4. A detachable endoscopic stapler according to claim 3, characterized in that: the ratchet mechanism (9) comprises a plurality of second pawls (91) and second clamping grooves (92), the second pawls (91) are circumferentially distributed on the ninth gear (83), the second clamping grooves (92) are formed in the tenth gear (84), and the second pawls (91) are matched with the second clamping grooves (92) to enable the ninth gear (83) to drive the tenth gear (84) to rotate in a single direction.

5. The detachable endoscopic stapler according to claim 1, wherein: turn to subassembly (3) including slider, shifting block (32) and wedge (33), the slider slides and sets up the one end at rifle body (1), shifting block (32) fixed mounting is in the one end of slider, wedge (33) rotate the one end of connecting at first drive rod (21), just the one end of slider be provided with first spout (34) of wedge (33) shape assorted, wedge (33) are through first spout (34) and slider sliding fit.

6. The detachable endoscopic stapler according to claim 1, wherein: second drive assembly (5) include fourth pivot (51), first screw rod (52), first drive belt (53) and second drive belt (54), fourth pivot (51) rotate and connect the one side at bull stick (41), just fourth pivot (51) and first pivot (44) coaxial line, first screw rod (52) run through one side of rifle body (1) and with rifle body (1) threaded connection, the one end fixed mounting of first screw rod (52) has first fixture block, third draw-in groove (55) that hold first fixture block are seted up to the one end of fourth pivot (51), first drive belt (53) cover is established on second pivot (45) and fourth pivot (51), second drive belt (54) cover is established on third pivot (61) and fourth pivot (51).

7. The detachable endoscopic stapler according to claim 1, wherein: the sliding assembly (7) comprises a second screw rod (71) and a second sliding block (72), the second screw rod (71) is rotatably connected into the handle (6), the second sliding block (72) is fixedly installed at one end of the gun body (1), a second sliding groove (73) for accommodating the second sliding block (72) is formed in the handle (6), the upper end of the second sliding block (72) is in threaded connection with the second screw rod (71), the second sliding block (72) is in sliding fit with the handle (6) through the second sliding groove (73), and a locking component (10) for locking the second screw rod (71) to rotate is further arranged at one end of the second screw rod (71).

8. The detachable endoscopic stapler according to claim 7, wherein: the locking component (10) comprises a keycap (101), a plurality of T-shaped blocks (102) are distributed on the circumference of one side of the keycap (101), a third sliding groove (103) in sliding fit with the T-shaped blocks (102) is formed in the outer side of the second screw rod (71), and a fourth sliding groove (104) in sliding fit with the T-shaped blocks (102) is formed in one end of the handle (6).

9. The detachable endoscopic stapler according to claim 1, wherein: the handle (13) and the grip (6) are both provided with anti-skid grains.