Disposable linear cutting stapler for endoscope

Abstract

The application discloses a disposable endoscope linear cutting anastomat convenient to clamp, and relates to the field of cutting anastomat.The device comprises a main unit, an anastomat unit arranged at one end of the main unit, and a cutting unit arranged at the anastomat unit, wherein the anastomat unit comprises a nail bin seat fixedly connected with a hose away from one end of a straight pipe, a nail abutting seat rotatably connected with the outer wall of the nail bin seat, a nail group clamped in the inner part of the nail bin seat, and a reset button arranged on the outer wall of the anastomat main body.The disposable endoscope linear cutting anastomat convenient to clamp is provided with a guide device arranged at one end of the nail abutting seat, so that when the nail abutting seat is anastomatized at a blood vessel or other tissue, the guide device can help the nail abutting seat to smoothly pass through the narrow space of the blood vessel or other tissue, the moving path of the nail abutting seat is relatively smooth, and secondary damage of the nail abutting seat to the blood vessel or other tissue is avoided.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of cutting anastomat, in particular to a disposable endoscopic linear cutting anastomat convenient to clamp. BACKGROUND

[0002] In the prior art, the disposable endoscopic cutting anastomat is mainly used in endoscopic and open surgery, moves the anastomosis instrument in an open state to a position where blood vessels or other tissues need to be anastomosed, and uses a push knife and a suture nail to disconnect or anastomose the blood vessels or other tissues.

[0003] However, when the anastomosis instrument is anastomosed with the blood vessels or other tissues, the size of the anastomosis instrument affects the anastomosis of the anastomosis instrument on the anastomosis position of the blood vessels or other tissues.

[0004] The main reason for the above problem is that the anastomosis instrument needs to be clamped at the anastomosis position of the blood vessels or other tissues, so as to close the blood vessels or other tissues by the anastomosis instrument. However, the gap between the blood vessels or other tissues is small, and when the gap is smaller than the width of the anastomosis instrument, the movement path of the anastomosis instrument will be blocked. When pressure is blindly applied to the anastomosis instrument, the anastomosis instrument will cause secondary damage to the blood vessels or other tissues, thereby causing other medical problems at the treatment site of the patient, increasing the difficulty of using the disposable endoscopic cutting anastomat, and aiming at the above situation, the application provides a disposable endoscopic linear cutting anastomat convenient to clamp. SUMMARY

[0005] In view of the defects of the prior art, the application discloses a disposable endoscopic linear cutting anastomat convenient to clamp to solve the problem that the size of the anastomat instrument affects the anastomosis of the anastomat instrument on the anastomosis position of the blood vessels or other tissues in the background art.

[0006] To achieve the above purpose, the application is implemented by the following technical scheme, a disposable endoscopic linear cutting anastomat convenient to clamp, comprising:

[0007] The main unit comprises an anastomat main body, a fixed handle fixedly connected with the outer wall of the anastomat main body, a straight pipe arranged on the outer wall of the anastomat main body, a hose arranged at one end of the straight pipe, and an adjusting knob arranged at the other end of the straight pipe;

[0008] The anastomosis unit comprises a nail cartridge seat fixedly connected with the hose away from one end of the straight pipe, a nail abutting seat rotatably connected with the outer wall of the nail cartridge seat, a nail group clamped in the nail cartridge seat, and a reset button arranged on the outer wall of the anastomat main body;

[0009] The cutting unit comprises a cutter body slidingly arranged in the nail cartridge seat, a firing handle and a movable handle rotatably connected with the outer wall of the anastomat main body, and a manual back-knife knob arranged on one side of the anastomat main body;

[0010] The guide mechanism is arranged on the outer wall of the end of the cartridge seat away from the hose, and comprises:

[0011] A clamping groove is arranged on the outer wall of the end of the cartridge seat away from the hose, and the inner wall of the clamping groove is rotationally connected with a first rod body;

[0012] A guide head is fixedly connected with the outer wall of the first rod body at one end;

[0013] An adjusting rod is rotationally arranged on the outer wall of the anastomat body;

[0014] A medical rope is arranged between the guide head and the adjusting rod, and one end of the medical rope is wound around the outer wall of the adjusting rod;

[0015] A rotating assembly is arranged in the clamping groove, and the other end of the medical rope is wound around the outer wall of the rotating assembly, and the rotating assembly drives the guide head to rotate at different angles through the adjusting rod.

[0016] Preferably, the rotating assembly comprises:

[0017] A first gear is fixedly arranged on the outer wall of the first rod body;

[0018] A first winding rod is rotationally arranged on the inner wall of the clamping groove, and one end of the medical rope is wound around the outer wall of the first winding rod;

[0019] A second gear is fixedly arranged on the outer wall of the first winding rod, and the second gear drives the guide head to rotate through the meshing between the second gear and the first gear;

[0020] A first coil spring is arranged on the outer wall of the first winding rod;

[0021] A first sleeve is fixedly arranged on the inner wall of the clamping groove, and one end of the first winding rod and the first coil spring are both rotationally arranged in the first sleeve.

[0022] Preferably, the outer wall of the guide head is provided with an expanding mechanism for expanding the narrow moving space of the blood vessel tissue, and the expanding mechanism comprises:

[0023] A cavity is arranged in the guide head;

[0024] Two groups of first push plates are rotationally connected with the inner wall of the cavity at one end;

[0025] Two groups of second push plates are rotationally connected with the inner wall of the cavity at one end;

[0026] A first pushing assembly and a second pushing assembly are arranged in the cavity, and the first pushing assembly and the second pushing assembly drive the first push plate and the second push plate to open and close.

[0027] Preferably, the first pushing assembly comprises:

[0028] a support fixedly connected to the inner bottom of the cavity;

[0029] a pulley rotatably connected to one end of the support, and an inner wall of the pulley is fixedly connected with a first bidirectional threaded rod;

[0030] a first threaded sleeve, both of which are threadedly sleeved on the outer wall of the first bidirectional threaded rod;

[0031] a first mounting seat, both of which are rotatably connected to one end of the outer wall of the first threaded sleeve, and one side of both of the first mounting seats is fixedly connected to the side surface of the first push plate.

[0032] Preferably, the second pushing assembly comprises:

[0033] a support plate fixedly connected to the inner bottom of the cavity;

[0034] a second bidirectional threaded rod rotatably connected to one end of the support plate;

[0035] a second threaded sleeve, both of which are threadedly sleeved on the outer wall of the second bidirectional threaded rod;

[0036] a second mounting seat, both of which are rotatably connected to one end of the outer wall of the second threaded sleeve, and one side of both of the second mounting seats is fixedly connected to the side surface of the second push plate.

[0037] Preferably, the first pushing assembly and the second pushing assembly are provided with a first linkage assembly, and the first linkage assembly comprises:

[0038] a linkage rack fixedly connected to the outer wall of one of the first threaded sleeves;

[0039] a linkage gear fixedly connected to the outer wall of the second bidirectional threaded rod, and the two bidirectional threaded rods are driven to rotate simultaneously through the meshing between the linkage rack and the linkage gear.

[0040] Preferably, the first bidirectional threaded rod and the adjusting rod are provided with a second linkage assembly, and the second linkage assembly comprises:

[0041] a second rod body rotatably connected to the inner wall of the clamping groove, and one end of the second rod body is inserted into the cavity;

[0042] a connecting belt arranged between the second rod body and the outer wall of the first bidirectional threaded rod;

[0043] a third gear fixedly arranged on the outer wall of the second rod body;

[0044] A second winding rod is rotationally arranged on the inner wall of the clamping groove, and a plurality of medical ropes are wound on the outer wall of the second winding rod, and the other ends of the medical ropes are rotationally arranged on the outer wall of the adjusting rod.

[0045] A half gear is fixedly arranged on the outer wall of the second winding rod, and the half gear is engaged with the third gear.

[0046] Preferably, the outer wall of the second winding rod is provided with a second coil spring, the inner wall of the clamping groove is fixedly connected with a second sleeve, and the second winding rod is rotationally arranged in the second sleeve.

[0047] Preferably, the outer wall of one end of the adjusting rod is provided with a fixing seat, one end of the fixing seat is fixedly connected with the side surface of the anastomat body, and the other end of the fixing seat is provided with a locking assembly for locking the adjusting rod.

[0048] Preferably, the locking assembly comprises:

[0049] A protruding block is fixedly arranged on the outer wall of one end of the adjusting rod located outside the fixing seat;

[0050] A fixing cover is fixedly arranged on one end of the fixing seat, and the fixing cover covers the outside of the protruding block;

[0051] A toothed plate is slidingly arranged in the inside of the fixing cover, and the toothed plate is clamped with the outer wall of the adjusting rod provided with the protruding block;

[0052] A locking screw is rotationally arranged on one side of the fixing cover, and one end of the locking screw extending into the inside of the fixing cover is rotationally connected with one side of the toothed plate;

[0053] A bearing is fixedly arranged on one side of the toothed plate, and the outer wall of one end of the locking screw is fixedly connected with the inner wall of the bearing.

[0054] The application discloses a disposable endoscope linear cutting anastomat convenient to clamp.

[0055] 1. The disposable endoscope linear cutting anastomat convenient to clamp is provided with a guide device on one end of the anvil, so that when the anvil is anastomatized at a blood vessel or the like, the guide device can help the anvil to smoothly pass through a narrow space at the blood vessel or the like, so that the moving path of the anvil is relatively smooth, and secondary damage of the anvil to the blood vessel or the like is avoided.

[0056] 2. The disposable endoscopic linear cutting anastomat convenient to clamp, a set of flaring devices are arranged on four sides of the guide device, the flaring devices can assist in expanding the narrow space when the one end of the guide device is inserted into the narrow space of the blood vessel or other tissue, so that the anvil seat can pass through the space smoothly, the outer wall of the anvil seat does not rub against the inner wall of the narrow space, and the patient's affected part is effectively protected.

[0057] 3. The disposable endoscopic linear cutting anastomat convenient to clamp, two groups of medical ropes are arranged, and a device for simultaneously controlling the two groups of medical ropes is arranged at a position close to the hand-held part of the anastomat, so that when the control device is started, on the one hand, the setting angle of the guide device can be adjusted, and on the other hand, the flaring device can be operated to assist the anvil seat to smoothly pass through the narrow space of the blood vessel or other tissue, and the operation is convenient.

[0058] 4. The disposable endoscopic linear cutting anastomat convenient to clamp, the locking assembly can open or close the device for controlling the two groups of medical ropes, so as to ensure that the adjusted guide device and the flaring device are in a stable state. BRIEF DESCRIPTION OF DRAWINGS

[0059] Figure 1 It is a schematic view of the overall outer surface structure of the application.

[0060] Figure 2 It is a schematic view of the anvil seat, assembly and nail cartridge seat structure of the application.

[0061] Figure 3 It is an exploded view of the assembly and nail cartridge seat structure of the application.

[0062] Figure 4 It is a schematic view of the nail cartridge seat and guide head structure of the application.

[0063] Figure 5 It is a schematic view of the guide head and medical rope structure of the application.

[0064] Figure 6 It is an exploded view of the guide head, medical rope and adjusting rod structure of the application.

[0065] Figure 7 It is a schematic view of the guide head, rotating assembly and first linkage assembly structure of the application.

[0066] Figure 8 It is a schematic view of the first and second support plate expansion structures of the application.

[0067] Figure 9 It is a schematic view of the second linkage assembly and two groups of bidirectional threaded rods of the application.

[0068] Figure 10The second linkage assembly and the first bidirectional threaded rod structure schematic diagram of the application;

[0069] Figure 11 The second bidirectional threaded rod and the linkage gear ring structure schematic diagram of the application;

[0070] Figure 12 The two groups of bidirectional threaded rods and the first linkage assembly structure schematic diagram of the application;

[0071] Figure 13 The adjusting rod and the locking assembly structure schematic diagram of the application;

[0072] Figure 14 The tooth plate and the locking screw structure schematic diagram of the application.

[0073] In the figure, 1, anastomat main body; 101, straight pipe; 102, hose; 1021, adjusting knob; 103, fixed handle; 104, movable handle; 2, nail bin seat; 201, nail abutment; 202, nail group; 203, reset button; 3, cutter body; 301, firing handle; 302, manual back-knobs; 401, clamping groove; 402, first rod body; 403, guide head; 4031, cavity; 404, adjusting rod; 4041, fixed seat; 405, medical rope; 406, rotating assembly; 4061, first gear; 4062, first winding rod; 4063, second gear; 4064, first winding spring; 4065, first sleeve; 407, flared mechanism; 4071, first push plate; 40711, support; 40712, pulley; 40713, first bidirectional threaded rod; 40714, first threaded sleeve; 40715, first mounting seat; 4072, second push plate; 40721, support plate; 40722, second bidirectional threaded rod; 40723, second threaded sleeve; 40724, second mounting seat; 4073, second rod body; 40731, connecting belt; 40732, third gear; 40733, second winding rod; 40734, half gear; 40735, second winding spring; 40736, second sleeve; 4074, linkage rack; 40741, linkage gear; 408, protrusion; 4081, fixed cover; 4082, tooth plate; 4083, locking screw; 4084, bearing. DETAILED DESCRIPTION

[0074] The embodiments will be described in conjunction with the drawings in the specification, and all other embodiments obtained by those skilled in the art based on the embodiments in the present application without creative labor shall fall within the scope of protection of the present application.

[0075] As Figures 1-14 shown, a disposable endoscopic linear cutting anastomat convenient to clamp, comprising:

[0076] The main unit comprises the anastomat main body 1, the fixed handle 103 fixedly connected with the outer wall of the anastomat main body 1, the straight pipe 101 arranged on the outer wall of the anastomat main body 1, the hose 102 arranged at one end of the straight pipe 101, and the adjusting knob 1021 arranged at the other end of the straight pipe 101.

[0077] The anastomosis unit comprises the nail cartridge seat 2 fixedly connected with the hose 102 away from one end of the straight pipe 101, the nail abutting seat 201 rotationally connected with the outer wall of the nail cartridge seat 2, the nail group 202 clamped in the nail cartridge seat 2, and the reset button 203 arranged on the outer wall of the anastomat main body 1.

[0078] The cutting unit comprises the cutter body 3 slidingly arranged in the nail cartridge seat 2, the firing handle 301 and the movable handle 104 rotationally connected with the outer wall of the anastomat main body 1, and the manual back-knife knob 302 arranged on one side of the anastomat main body 1.

[0079] The main unit, the anastomosis unit, and the cutting unit constitute the disposable endoscopic linear cutting anastomat main body which is convenient to clamp. In use, the nail group 202 is inserted into the nail cartridge seat 2 in a sliding manner until the nail group 202 is aligned with the bayonet, and the nail group 202 is firmly clamped in place by slightly pressing. Then, the movable handle 104 is locked, so that the nail cartridge seat 2 and the nail abutting seat 201 are in a closed state, that is, the instrument occlusal surface is in a closed state. Then, the instrument is inserted through the puncture device, and the instrument occlusal surface needs to be completely inserted through the puncture device. The reset button 203 is pressed to open the instrument occlusal surface. According to the needs, the index finger is used to rotate the adjusting knob 1021 to rotate the instrument occlusal surface, and the instrument occlusal surface is positioned around the tissue such as blood vessels to be anastomosed. The movable handle 104 is locked, and a "click" sound is heard, indicating that the occlusal surface has been locked. Then, the firing handle 301 is pressed to fire the instrument, thereby completing the anastomosis of the tissue such as blood vessels. Finally, the reset button 203 is pressed again to separate the instrument occlusal surface, so that the disposable endoscopic linear cutting anastomat main body is removed from the tissue.

[0080] The outer wall of the one end of the staple cartridge seat 2 away from the hose 102 is provided with a guide mechanism. When the staple cartridge seat 2 needs to pass through a narrow space of tissues such as blood vessels to close the separated tissues, the guide mechanism can facilitate the staple cartridge seat 2 to pass through the narrow space of tissues. The guide mechanism includes a clamping groove 401 which is arranged on the outer wall of the one end of the staple cartridge seat 2 away from the hose 102. The inner wall of the clamping groove 401 is rotatably connected with a first rod body 402. One end of a guide head 403 is fixedly connected with the outer wall of the first rod body 402. An adjusting rod 404 is rotatably arranged on the outer wall of the anastomat main body 1. Medical ropes 405 are used for connecting the guide head 403 and the adjusting rod 404. One end of the medical ropes 405 is wound on the outer wall of the adjusting rod 404. Through holes are arranged on the inner walls of different components of the disposable endoscopic linear cutting anastomat, which are not directly shown in the drawings. The medical ropes 405 between the adjusting rod 404 and the guide head 403 slide in the through holes, so that the medical ropes 405 can be hidden.

[0081] The rotating assembly 406 is arranged in the clamping groove 401. The other end of the medical ropes 405 is wound on the outer wall of the rotating assembly 406. The rotating assembly 406 drives the guide head 403 to rotate at different angles through the adjusting rod 404, so that the guide head 403 can guide the anastomosis unit to pass through the narrow space of tissues in different forms. The rotating assembly 406 includes a first gear 4061 which is fixedly arranged on the outer wall of the first rod body 402. A first winding rod 4062 is rotatably arranged on the inner wall of the clamping groove 401. One end of the medical ropes 405 is wound on the outer wall of the first winding rod 4062. A second gear 4063 is fixedly arranged on the outer wall of the first winding rod 4062. The guide head 403 is driven to rotate through the meshing between the second gear 4063 and the first gear 4061. A first coil spring 4064 is arranged on the outer wall of the first winding rod 4062. The first coil spring 4064 can reset the guide head 403 to be clamped in the clamping groove 401. A first sleeve 4065 is fixedly arranged on the inner wall of the clamping groove 401. The first winding rod 4062 and one end of the first coil spring 4064 are rotatably arranged in the first sleeve 4065. The first gear 4061 is meshed with the second gear 4063. When the adjusting rod 404 winds a group of medical ropes 405, the first winding rod 4062 and the first rod body 402 controlled by the first winding rod 4062 are driven to rotate, thereby controlling the guide head 403 arranged on the outer wall of the first rod body 402 to rotate, realizing the adjustment and control of the guide head 403 at different angles, and the setting angle of the guide head 403 can be remotely controlled in this mode.

[0082] The outer wall of the guide head 403 is provided with an expanding mechanism 407 for expanding the narrow space of the blood vessel tissue. When the guide head 403 is inserted into the narrow space of the blood vessel tissue, the expanding mechanism 407 can expand the space, thereby facilitating the smooth passage of the nail cartridge seat 2 through the space of the blood vessel tissue. The expanding mechanism 407 includes a cavity 4031 formed in the interior of the guide head 403, one end of two groups of first push plates 4071 is rotatably connected to the inner wall of the cavity 4031, and one end of two groups of second push plates 4072 is rotatably connected to the inner wall of the cavity 4031. The two groups of first push plates 4071 and the two groups of second push plates 4072 can simultaneously expand the space of the blood vessel tissue from four sides.

[0083] The first and second push assemblies are arranged in the cavity 4031. The first and second push assemblies drive the first and second push plates 4071 to open and close. The first push assembly includes a bracket 40711 fixedly connected to the inner bottom of the cavity 4031, a belt pulley 40712 rotatably connected to one end of the bracket 40711, a first bidirectional threaded rod 40713 fixedly connected to the inner wall of the belt pulley 40712, two groups of first threaded sleeves 40714 threadedly sleeved on the outer wall of the first bidirectional threaded rod 40713, two groups of first mounting seats 40715 rotatably connected to one end of the outer wall of the two groups of first threaded sleeves 40714, and two groups of first push plates 4071 fixedly connected to one side of the two groups of first mounting seats 40715. The second push assembly includes a support plate 40721 fixedly connected to the inner bottom of the cavity 4031, a second bidirectional threaded rod 40722 rotatably connected to one end of the support plate 40721, two groups of second threaded sleeves 40723 threadedly sleeved on the outer wall of the second bidirectional threaded rod 40722, two groups of second mounting seats 40724 rotatably connected to one end of the outer wall of the two groups of second threaded sleeves 40723, and two groups of second push plates 4072 fixedly connected to one side of the two groups of second mounting seats 40724.

[0084] A first linkage assembly is arranged between the first and second push assemblies. The first linkage assembly includes a linkage rack 4074 fixedly connected to the outer wall of one group of first threaded sleeves 40714, and a linkage gear 40741 fixedly connected to the outer wall of the second bidirectional threaded rod 40722. The linkage rack 4074 and the linkage gear 40741 are engaged to simultaneously rotate the two groups of bidirectional threaded rods. The first linkage assembly enables the two groups of second push plates 4072 to simultaneously expand or close by an equal amount during the expansion or closing of the two groups of first push plates 4071.

[0085] The second linkage assembly is arranged between the first bidirectional threaded rod 40713 and the adjusting rod 404. Through the second linkage assembly, the adjusting rod 404 can control the operation of the flaring mechanism 407 during rotation. The second linkage assembly comprises a second rod body 4073, the second rod body 4073 is rotatably connected with the inner wall of the clamping groove 401, and one end of the second rod body 4073 is inserted into the cavity 4031. A group of belt pulleys 40712 are fixedly connected to the outer wall of the one end of the second rod body 4073 inserted into the cavity 4031. A connecting belt 40731 is arranged on the outer wall of the second rod body 4073 and the first bidirectional threaded rod 40713, and the two ends of the connecting belt 40731 are connected with the outer wall of the belt pulleys 40712 arranged on the outer wall of the second rod body 4073 and the first bidirectional threaded rod 40713, respectively. A third gear 40732 is fixedly arranged on the outer wall of the second rod body 4073, and a second winding rod 40733 is rotatably arranged on the inner wall of the clamping groove 401. A group of medical ropes 405 are wound on the outer wall of the second winding rod 40733, and the other end of the medical ropes 405 is wound on the outer wall of the adjusting rod 404. A group of medical ropes 405 between the adjusting rod 404 and the second winding rod 40733 slide in the through hole, so that the group of medical ropes 405 can be hidden. That is, two groups of medical ropes 405 are wound on the outer wall of the adjusting rod 404, so that when the adjusting rod 404 is rotated, the guide head 403 is adjusted in angle, and a plurality of push plates arranged at the guide head 403 are expanded and operated. A half gear 40734 is fixedly arranged on the outer wall of the second winding rod 40733, and the half gear 40734 is engaged with the third gear 40732. A second coil spring 40735 is arranged on the outer wall of the second winding rod 40733, and a second shell 40736 is fixedly connected to the inner wall of the clamping groove 401. One end of the second winding rod 40733, on which the medical ropes 405 and the second coil spring 40735 are arranged, is rotatably arranged in the second shell 40736. The second coil spring 40735 can automatically drive a plurality of push plates to reset to the cavity 4031.

[0086] The outer walls of the first bidirectional threaded rod 40713 and the second bidirectional threaded rod 40722 are respectively provided with two groups of threaded grooves, and the groove directions of the two groups of threaded grooves are opposite, so that when the first bidirectional threaded rod 40713 or the second bidirectional threaded rod 40722 is rotated, the two groups of threaded sleeves arranged on the outer walls thereof can simultaneously move to both sides or simultaneously move to the middle.

[0087] One end of the outer wall of the adjusting rod 404 is provided with a fixing seat 4041, one end of the fixing seat 4041 is fixedly connected with the side surface of the anastomat main body 1, and the other end of the fixing seat 4041 is provided with a locking assembly for locking the adjusting rod 404. The locking assembly is provided to lock the setting positions of the guide head 403 and the plurality of push plates. The locking assembly comprises a plurality of protrusions 408, which are fixedly arranged on the outer wall of one end of the adjusting rod 404 outside the fixing seat 4041. A fixed cover 4081 is fixedly arranged on one end of the fixing seat 4041, and the fixed cover 4081 covers the outside of the protrusions 408. A toothed plate 4082 is slidingly arranged in the inside of the fixed cover 4081, and the toothed plate 4082 is clamped with the outer wall of the adjusting rod 404 where the protrusions 408 are arranged. A locking screw 4083 is rotatably arranged on one side of the fixed cover 4081, and one end of the locking screw 4083 extending into the inside of the fixed cover 4081 is rotatably connected with one side of the toothed plate 4082. A bearing 4084 is fixedly arranged on one side of the toothed plate 4082, and the outer wall of one end of the locking screw 4083 is fixedly connected with the inner wall of the bearing 4084.

[0088] In summary,

[0089] When the staple cartridge seat 2 and the anvil abutting seat 201 in the open state are moved to the tissue such as blood vessels that need to be anastomosed, the adjusting rod 404 in the unlocked state is rotated, so that the two groups of medical ropes 405 are gradually wound on the outer wall of the adjusting rod 404, so that under the tension of the two groups of medical ropes 405, the first winding rod 4062 and the second winding rod 4073 arranged in the inside of the clamping groove 401 are rotated.

[0090] When the first winding rod 4062 rotates, the second gear 4063 arranged on the outer wall of the first winding rod 4062 rotates, and then under the meshing action of the second gear 4063 and the first gear 4061, the first rod body 402 and the guide head 403 arranged on the outer wall of the first rod body 402 are driven to rotate, so that one end of the guide head 403 is rotated to correspond to the narrow space at the tissue such as blood vessels, so that the guide head 403 can be smoothly inserted into the narrow space at the tissue such as blood vessels.

[0091] At the same time, when the second winding rod 40733 rotates, the half gear 40734 arranged on the outer wall of the second winding rod 40733 meshes with the third gear 40732 arranged on the outer wall of the second rod body 4073, so as to drive the second rod body 4073, and the connecting belt 40731 arranged on the outer wall of the second rod body 4073 is driven to operate, so that the first bidirectional threaded rod 40713 connected with the other end of the connecting belt 40731 is rotated, so that the two groups of first threaded sleeves 40714 threadedly connected with the outer wall of the first bidirectional threaded rod 40713 are simultaneously moved to both sides, and then the two groups of first push plates 4071 are unfolded.

[0092] Further, when the two groups of first threaded sleeves 40714 move to both sides at the same time, the linkage rack 4074 arranged on the outer wall of the group of first threaded sleeves 40714 moves by an equal amount, at this time, under the meshing action of the linkage rack 4074 and the linkage gear 40741, the second bidirectional threaded rod 40722 rotates, and in turn, the two groups of second threaded sleeves 40723 arranged on the outer wall of the second bidirectional threaded rod 40722 move to both sides at the same time under the action of threaded connection, so that the two groups of second push plates 4072 are unfolded.

[0093] When the guide head 403 is inserted into the narrow space at the blood vessel or the like, the multiple groups of unfolded push plates can expand the space at the blood vessel or the like, so as to facilitate the nail cartridge seat 2 to pass through the space.

[0094] Further, by rotating the locking screw rod 4083, the locking screw rod 4083 pushes the toothed plate 4082 to be engaged with the multiple groups of protrusions 408 arranged on the outer wall of the adjusting rod 404, so that the adjusting rod 404 is fixedly arranged on one side of the anastomat main body 1, and in turn, the adjusted guide head 403 and the multiple groups of push plates are in a fixed state.

[0095] Finally, the locking movable handle 104 is locked, and a "click" sound is heard, indicating that the occlusal surface has been locked. Then, the firing handle 301 is pressed to fire the instrument, and in turn, the anastomosis of the blood vessel or the like is completed. Finally, the reset button 203 is pressed again to separate the instrument occlusal surface, so as to take away the disposable endoscope linear cutting anastomat body from the tissue.

[0096] The above is only the best implementation mode adopted by the present application in combination with the current actual demand, but the protection scope of the present application is not limited thereto.

Claims

1. A disposable endoscopic linear cutting stapler convenient to clamp, comprising: a main unit, comprising a stapler main body (1), a fixed handle (103) fixedly connected with the outer wall of the stapler main body (1), a straight pipe (101) arranged on the outer wall of the stapler main body (1), a hose (102) arranged at one end of the straight pipe (101), and an adjusting knob (1021) arranged at the other end of the straight pipe (101); a stapling unit, comprising a nail cartridge seat (2) fixedly connected with the end of the hose (102) away from the straight pipe (101), a nail abutting seat (201) rotationally connected with the outer wall of the nail cartridge seat (2), a nail group (202) clamped in the nail cartridge seat (2), and a reset button (203) arranged on the outer wall of the stapler main body (1); a cutting unit, comprising a cutter body (3) slidingly arranged in the nail cartridge seat (2), a firing handle (301) and a movable handle (104) rotationally linked with the outer wall of the stapler main body (1), and a manual back-knife knob (302) arranged on one side of the stapler main body (1); characterized in that the outer wall of the end of the nail cartridge seat (2) away from the hose (102) is provided with a guide mechanism, the guide mechanism comprising: a clamping groove (401) formed in the outer wall of the end of the nail cartridge seat (2) away from the hose (102), the inner wall of the clamping groove (401) being rotationally connected with a first rod body (402); a guide head (403) having one end fixedly connected with the outer wall of the first rod body (402); an adjusting rod (404) rotationally arranged on the outer wall of the stapler main body (1); a medical rope (405) for connecting between the guide head (403) and the adjusting rod (404), one end of the medical rope (405) being wound around the outer wall of the adjusting rod (404); a rotating assembly (406) arranged in the interior of the clamping groove (401), the other end of the medical rope (405) being wound around the outer wall of the rotating assembly (406), the rotating assembly (406) being controlled by the adjusting rod (404) to drive the guide head (403) to rotate at different angles.

2. The disposable endoscopic linear cutting stapler with easy clamping according to claim 1, wherein, The rotating assembly (406) comprises: a first gear (4061) fixedly arranged on the outer wall of the first rod body (402); a first winding rod (4062) rotationally arranged on the inner wall of the clamping groove (401), one end of the medical rope (405) being wound around the outer wall of the first winding rod (4062); a second gear (4063) fixedly arranged on the outer wall of the first winding rod (4062), the guide head (403) being driven to rotate by the meshing between the second gear (4063) and the first gear (4061); a first coil spring (4064) arranged on the outer wall of the first winding rod (4062); a first sleeve (4065) fixedly arranged on the inner wall of the clamping groove (401), the first winding rod (4062) being rotationally arranged in the interior of the first sleeve (4065) with one end of the medical rope (405) and the first coil spring (4064).

3. The disposable endoscopic straight line cutting stapler with easy clamping according to claim 2, wherein, The outer wall of the guide head (403) is provided with a flaring mechanism (407) for expanding the narrow moving space of the blood vessel tissue, the flaring mechanism (407) comprises: a cavity (4031) opened in the inside of the guide head (403); a first push plate (4071), one end of two groups of the first push plate (4071) is rotatably connected with the inner wall of the cavity (4031); a second push plate (4072), one end of two groups of the second push plate (4072) is rotatably connected with the inner wall of the cavity (4031); a first pushing assembly and a second pushing assembly, both of which are arranged in the inside of the cavity (4031), and the first push plate (4071) and the first push plate (4071) are driven to open and close by the first pushing assembly and the second pushing assembly.

4. The disposable endoscopic straight line cutting stapler with easy clamping according to claim 3, wherein, The first pushing assembly comprises: a support (40711) fixedly connected with the inner bottom of the cavity (4031); a belt pulley (40712) rotatably connected with one end of the support (40711), the inner wall of the belt pulley (40712) is fixedly connected with a first bidirectional threaded rod (40713); a first threaded sleeve (40714), two groups of the first threaded sleeve (40714) are threadedly sleeved on the outer wall of the first bidirectional threaded rod (40713); a first mounting seat (40715), two groups of the first mounting seat (40715) are rotatably connected with one end of the outer wall of two groups of the first threaded sleeve (40714) respectively, and one side of two groups of the first mounting seat (40715) is fixedly connected with the side surface of two groups of the first push plate (4071) respectively.

5. The disposable endoscopic straight line cutting stapler that facilitates clamping according to claim 3, characterized in that, The second pushing assembly comprises: a support plate (40721) fixedly connected with the inner bottom of the cavity (4031); a second bidirectional threaded rod (40722) rotatably connected with one end of the support plate (40721); a second threaded sleeve (40723), two groups of the second threaded sleeve (40723) are threadedly sleeved on the outer wall of the second bidirectional threaded rod (40722); a second mounting seat (40724), two groups of the second mounting seat (40724) are rotatably connected with one end of the outer wall of two groups of the second threaded sleeve (40723) respectively, and one side of two groups of the second mounting seat (40724) is fixedly connected with the side surface of two groups of the second push plate (4072) respectively.

6. The disposable endoscopic straight line cutting stapler that facilitates clamping according to claim 3, wherein, A first linkage assembly is arranged between the first pushing assembly and the second pushing assembly, and the first linkage assembly comprises: a linkage rack (4074) fixedly connected with the outer wall of one group of the first threaded sleeve (40714); a linkage gear (40741) fixedly connected with the outer wall of the second bidirectional threaded rod (40722), the two groups of bidirectional threaded rods are driven to rotate at the same time through the meshing between the linkage rack (4074) and the linkage gear (40741).

7. The disposable endoscopic straight line cutting stapler that facilitates clamping according to claim 4, wherein, A second linkage assembly is arranged between the first bidirectional threaded rod (40713) and the adjusting rod (404), and the second linkage assembly comprises: The second rod body (4073) is rotatably connected with the inner wall of the clamping groove (401), and one end of the second rod body (4073) is inserted into the inner cavity (4031); The connecting belt (40731) is arranged on the outer wall of the second rod body (4073) and the first double-threaded rod (40713); The third gear (40732) is fixedly arranged on the outer wall of the second rod body (4073); The second winding rod (40733) is rotatably arranged on the inner wall of the clamping groove (401), and the outer wall of the second winding rod (40733) is wound with a group of medical ropes (405), and the other end of the medical rope (405) is wound on the outer wall of the adjusting rod (404); The half gear (40734) is fixedly arranged on the outer wall of the second winding rod (40733), and the half gear (40734) is engaged with the third gear (40732).

8. The disposable endoscopic straight line cutting stapler that facilitates clamping according to claim 7, characterized in that, The outer wall of the second winding rod (40733) is provided with a second coil spring (40735), the inner wall of the clamping groove (401) is fixedly connected with a second shell (40736), and one end of the medical rope (405) and the second coil spring (40735) arranged on the second winding rod (40733) are rotatably arranged in the second shell (40736).

9. The disposable endoscopic straight line cutting stapler that facilitates clamping according to claim 7, wherein, One end of the outer wall of the adjusting rod (404) is covered with a fixed seat (4041), one end of the fixed seat (4041) is fixedly connected with the side surface of the anastomat body (1), and the other end of the fixed seat (4041) is provided with a locking assembly for locking the adjusting rod (404).

10. The disposable endoscopic linear cutting stapler that facilitates clamping according to claim 9, wherein, The locking assembly comprises: The protrusion (408) is fixedly arranged on the outer wall of one end of the adjusting rod (404) located outside the fixed seat (4041); The fixed cover (4081) is fixedly arranged on one end of the fixed seat (4041), and the fixed cover (4081) covers the outside of the protrusion (408); The toothed plate (4082) is slidably arranged in the inner wall of the fixed cover (4081), and the toothed plate (4082) is connected with the outer wall of the adjusting rod (404) provided with the protrusion (408); The locking screw (4083) is rotatably arranged on one side of the fixed cover (4081), and one end of the locking screw (4083) extending into the fixed cover (4081) is rotatably connected with one side of the toothed plate (4082); The bearing (4084) is fixedly arranged on one side of the toothed plate (4082), and the outer wall of one end of the locking screw (4083) is fixedly connected with the inner wall of the bearing (4084).

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