Hemorrhoids loop ligature anastomat

Abstract

The invention discloses a haemorrhoids loop ligature anastomat in the technical field of haemorrhoids loop ligature instruments, which comprises a rod-shaped main body, an adsorption device is arranged on the inner wall of the left end of the main body, a grip is fixedly connected to the lower side of the right end of the main body, and a control switch is arranged on the grip. The buckle is characterized by comprising a plurality of independent first buckles and second buckles, a rolled elastic wire; the splicing device is used for cutting out a section of elastic line to be matched with the first buckle and the second buckle to jointly splice an independent closed elastic ring in the main body; the discharging mechanism is used for pushing the elastic ring out of the main body; the first buckles, the second buckles and the coiled elastic threads are combined in the main body to obtain the elastic rings, so that the number of the elastic rings can basically meet the loop ligature frequency of all haemorrhoids in the body of a patient, the situation that the main body needs to be taken out for multiple times for mounting the elastic rings in one operation is avoided, and the number of the elastic rings is reduced in the operation process. The discomfort and the injury of the patient are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of hemorrhoid ligation instruments, and particularly to a hemorrhoid ligation stapler. Background Art

[0002] A hemorrhoid ligation stapler sucks in hemorrhoids by negative pressure, and then ligates an elastic ring to the root of the hemorrhoid, and tightens the root of the hemorrhoid by the elastic contraction of the elastic ring.

[0003] During the use of the existing hemorrhoid ligation stapler, the elastic ring needs to be pre-opened and sleeved in the ligator for standby in advance. This results in a limited number of elastic rings pre-installed in the ligator at a time. Since a hemorrhoid needs to be ligated multiple times and the number of hemorrhoids in a patient's body is not single, after the ligator is inserted into the patient's anus, the number of pre-installed elastic rings in the ligator is likely to be insufficient, resulting in the need to insert the ligator into the patient's anus multiple times, increasing the workload during the operation and also increasing the discomfort of the patient. Summary of the Invention

[0004] The purpose of the present invention is to provide a hemorrhoid ligation stapler to solve the problem that during the use of the existing hemorrhoid ligation stapler, the elastic ring needs to be pre-opened and sleeved in the ligator for standby in advance, which results in a limited number of elastic rings pre-installed in the ligator at a time. Since a hemorrhoid needs to be ligated multiple times and the number of hemorrhoids in a patient's body is not single, after the ligator is inserted into the patient's anus, the number of pre-installed elastic rings in the ligator is likely to be insufficient, resulting in the need to insert the ligator into the patient's anus multiple times, increasing the workload during the operation and also increasing the discomfort of the patient.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A hemorrhoid ligation stapler, including a main body. The main body is rod-shaped. An adsorption device is provided on the inner wall of the left end of the main body. A grip is fixedly connected to the lower side of the right end of the main body. A control switch is provided on the grip. It is characterized in that: it includes a plurality of independent first buckles and second buckles;

[0006] A roll of elastic thread;

[0007] A splicing device is provided in the main body. The splicing device is used to intercept a section of elastic thread and cooperate with a first buckle and a second buckle to jointly splice an independent closed elastic ring in the main body;

[0008] A discharging mechanism is used to push the elastic ring out of the main body.

[0009] Further, the first buckle and the second buckle respectively include two first U-shaped shells and two second U-shaped shells which are symmetrically arranged left and right. A first U-shaped groove is vertically formed through the front half of the first U-shaped shell, and a second U-shaped groove is vertically formed through the rear half of the second U-shaped shell; both ends of the truncated elastic wire are respectively arranged in the first U-shaped groove and the second U-shaped groove; tongues are vertically arranged in both the first U-shaped shell and the second U-shaped shell. The tongue in the first U-shaped shell can prevent the elastic wire from sliding downward relative to the first U-shaped groove, and the tongue in the second U-shaped shell can prevent the elastic wire from sliding upward relative to the second U-shaped groove.

[0010] Further, a clamping block is vertically arranged on the left side wall of the first U-shaped shell, and a clamping groove is vertically formed in the right side wall of the second U-shaped shell. The first U-shaped shell and the second U-shaped shell can be clamped through the clamping block and the clamping groove.

[0011] Further, the main body includes a rod body. A first installation groove is formed at the left end of the rod body, and a second installation groove is formed at the upper end of the rod body. The first installation groove and the second installation groove are jointly used for installing the splicing device and the discharging mechanism. A protective sleeve is sleeved on the outer wall of the rod body.

[0012] Further, the splicing device includes a horizontally arranged first guide rail and a second guide rail. A plurality of the first buckles are arranged in the first guide rail in a horizontal array, and a plurality of the second buckles are arranged in the second guide rail in a horizontal array; a first U-shaped rod is horizontally and fixedly connected in the first guide rail. The first U-shaped groove is slidably connected with the first U-shaped rod. A vertically arranged wire groove is formed at the left end of the first U-shaped rod, and a communication port penetrating through the first U-shaped rod is longitudinally formed at the right end of the wire groove. A winding device is fixedly connected to the upper end of the second installation groove. The winding device is used for winding the elastic wire; the end of the elastic wire is led out from the winding device, enters the protective sleeve, and enters the wire groove through the communication port and extends to the left side of the first guide rail; a wire winding mechanism is arranged on the side wall of the first installation groove. A clamping mechanism is arranged on the wire winding mechanism. Pushing mechanisms are arranged at both the positions of the first guide rail and the second guide rail in the second installation groove. The pushing mechanisms are used for pushing the first buckle or the second buckle leftward into the clamping mechanism. The wire winding mechanism is used for driving the first buckle in the clamping mechanism and the elastic wire on the first buckle to wind around the installation ring for one circle. The wire winding mechanism is provided with a truncating mechanism, and the truncating mechanism is used for truncating the elastic wire.

[0013] Further, the pushing mechanism includes a push plate which is elastically and slidably connected to the first guide rail or the second guide rail. The push plate is used to push the rightmost first buckle or second buckle. At the left end of the leftmost first buckle or second buckle, the first guide rail or the second guide rail is provided with an ejectable block which is used to prevent the first buckle or the second buckle from moving leftward. At the upper end of the second leftmost first buckle or second buckle, there is a pressing plate. The upper end of the pressing plate is fixedly connected to a first elastic telescopic rod. The upper end of the first elastic telescopic rod is fixedly connected to a connecting plate. Horizontally arranged on the upper end of the connecting plate is a third guide rail which is embedded in the inner wall of the protective sleeve. Vertically fixedly connected to the side wall of the upper end of the connecting plate is a fourth guide rail which is vertically and slidably connected to the side wall of the third guide rail. Horizontally and elastically slidably connected to the third guide rail is a wedge block. Fixedly connected to the inner wall of the protective sleeve is a first cylinder. The output shaft at the left end of the first cylinder is fixedly connected to the right end of the wedge block. The inclined surface of the wedge block can press the connecting plate downward. Horizontally and elastically slidably connected to the third guide rail is a slider which is located on the left side of the wedge block. Elastically and rotatably connected to the left side of the slider is an arc-shaped rod which always has a tendency to press downward under the action of elastic force. At the end of the arc-shaped rod is installed a one-way wheel which is located at the upper end of the leftmost first buckle or second buckle. The one-way wheel can only roll rightward relative to the first buckle or the second buckle. The block is externally connected to a driving device. The driving device can control the block to retract into the first guide rail or the second guide rail when the first cylinder pushes the wedge block to move leftward. The left end of the first U-shaped rod is flush with the left end of the second leftmost first buckle.

[0014] Further, the wire winding mechanism includes a rotating ring which is rotatably embedded in the first installation groove. The rotating ring is externally connected to a driving unit which is used to drive the rotating ring to rotate. The clamping mechanism is arranged on the side wall of the rotating ring.

[0015] Further, the clamping mechanism includes a mounting table which is fixedly connected to the upper end of the side wall of the rotating ring. The front end of the mounting table is rotatably connected to an arc-shaped shell which is externally connected to a driving unit. The driving unit is used to control the arc-shaped shell to rotate to the front end of the mounting table so that the arc-shaped shell does not interfere with the leftward movement of the first buckle. Vertically and elastically embedded in the upper end surface of the mounting table is a limiting block with a chamfer at the right end. The limiting block is used to cooperate with the arc-shaped shell to clamp the first buckle. The first installation groove is fixedly connected with a guiding block at the right side part of the mounting table. Both the front and rear ends of the guiding block are provided with rounded corners. Horizontally opened in the middle position of the guiding block is an avoidance groove which is used for the second buckle to horizontally pass through the guiding block. The highest positions of the front and rear parts of the guiding block located at the avoidance groove are both flush with the lower end surface of the second U-shaped groove.

[0016] Further, the truncating mechanism includes a knife groove which is horizontally formed on the rounded corner at the front side of the guiding block. A second cylinder is fixedly connected inside the protective sleeve. The output shaft at the lower end of the second cylinder is fixedly connected with a cutter which is used to cooperate with the knife groove to truncate the elastic wire.

[0017] Further, the pushing mechanism includes a third cylinder which is fixedly connected in the second installation groove. A pushing block is horizontally and slidably connected in the first installation groove. The output shaft on the left side of the third cylinder is fixedly connected with the pushing block.

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

[0019] 1. By using the method of combining multiple independent first buckles, second buckles and a rolled elastic wire to form an elastic ring inside the main body, the present invention can carry more elastic rings when inserted into the patient's body once compared with the traditional solution. The number of elastic rings can basically meet the ligation times of all hemorrhoids in the patient's body, thus avoiding the need to take out the main body multiple times for installing elastic rings during one operation, and further avoiding the operation of repeatedly inserting the main body into the patient's anus during the operation, thereby reducing the discomfort and harm suffered by the patient during the operation.

[0020] 2. The two ends of the elastic wire are respectively led out from the upper and lower ends of the first buckle and the second buckle spliced into a whole. This method effectively avoids the phenomenon of shaking of the first buckle and the second buckle during the use of the elastic ring, thereby reducing the discomfort of the patient in daily life after ligation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the elastic ring;

[0022] Figure 2 is an exploded view of the splicing of the first buckle and the second buckle;

[0023] Figure 3 is a schematic overall structural diagram of the present invention;

[0024] Figure 4 is Figure 3 an enlarged schematic diagram of the structure at position A in

[0025] Figure 5 is Figure 3 a schematic structural diagram after removing the protective sleeve;

[0026] Figure 6 is Figure 5 an enlarged schematic diagram of the structure at position B in

[0027] Figure 7 is Figure 5 an enlarged schematic diagram of the structure at position C in

[0028] Figure 8 For Figure 5 The enlarged schematic diagram of the structure at position D in

[0029] Figure 9 For Figure 5 The left view schematic diagram after removing the grip

[0030] Figure 10 For Figure 9 The enlarged schematic diagram of the structure at position E in

[0031] Figure 11 The structural schematic diagram of the pushing mechanism

[0032] Figure 12 For Figure 11 The front sectional structural schematic diagram

[0033] Figure 13 For Figure 9 The partial structural schematic diagram after being vertical

[0034] Figure 14 For Figure 13 The enlarged schematic diagram of the structure at position F in

[0035] Figure 15 The structural schematic diagram of the first guide rail

[0036] In the attached drawings, the components represented by each reference numeral are as follows:

[0037] Main body, rod body 1-1, first installation groove 1-1-1, second installation groove 1-1-2, protective sleeve 1-1-3, adsorption device 2, elastic wire 3, winding device 3-1, elastic ring 4, first U-shaped shell 5, first U-shaped groove 5-1, engaging block 5-2, second U-shaped shell 6, second U-shaped groove 6-1, engaging groove 6-2, tongue piece 7, first guide rail 8, first U-shaped rod 8-1, wire groove 8-2, communication port 8-3, second guide rail 9, push plate 10, clamping block 11, pressing plate 12, first elastic telescopic rod 13, connecting plate 14, third guide rail 15, wedge block 15-1, slider 15-2, fourth guide rail 16, first cylinder 17, arc rod 18, one-way wheel 18-1, rotating ring 19, installation table 20, arc shell 21, limiting block 22, guiding block 23, avoidance groove 23-1, knife groove 24, second cylinder 25, cutter 26, third cylinder 27, pushing block 28. Specific embodiments

[0038] Please refer to Figures 1 - 15 , the present invention provides a technical solution: a hemorrhoid ligation stapler, including a main body, the main body is rod-shaped, an adsorption device 2 is arranged on the inner wall of the left end of the main body, a grip is fixedly connected to the lower side of the right end of the main body, and a control switch is arranged on the grip, and is characterized in that: it includes a plurality of independent first buckles and second buckles;

[0039] A roll of elastic thread 3;

[0040] A splicing device, which is arranged in the main body. The splicing device is used to intercept a section of elastic thread 3 and cooperate with a first buckle and a second buckle to jointly splice into an independent closed elastic ring 4 in the main body;

[0041] A discharging mechanism for pushing the elastic ring 4 out of the main body.

[0042] During the operation, the main body is inserted into the patient's body through the patient's anus. The device is controlled by the control switch on the handle, so that the adsorption device 2 arranged at the left end of the main body sucks the patient's hemorrhoids into the inner wall of the left end of the main body by means of vacuum negative pressure. Then, an elastic ring 4 is spliced in the main body through the splicing device, and the discharging mechanism is used to push the elastic ring 4 out of the left end of the main body, so that the elastic ring 4 is sleeved on the root of the anus to complete a ligation operation. Then, without removing the main body from the patient's body, the hemorrhoids at this place are ligated multiple times or the hemorrhoids at different positions in the patient's body are ligated.

[0043] In the present invention, by using the method of combining multiple independent first buckles, second buckles and a roll of elastic thread 3 to obtain the elastic ring 4 in the main body, compared with the traditional scheme, the number of elastic rings 4 that can be carried is more when the main body is inserted into the patient's body once, so that the number of elastic rings 4 can basically meet the number of ligation times of all the hemorrhoids in the patient's body. Furthermore, it is avoided that the main body needs to be taken out multiple times for the installation of the elastic ring 4 during one operation, and further, the operation of repeatedly inserting the main body into the patient's anus during the operation is avoided, thereby reducing the discomfort and harm suffered by the patient during the operation.

[0044] Reference Figure One :

[0045] Furthermore, the first buckle and the second buckle respectively include two first U-shaped shells 5 and second U-shaped shells 6 which are symmetrically arranged left and right. A first U-shaped groove 5-1 is vertically penetrated through the front half part of the first U-shaped shell 5, and a second U-shaped groove 6-1 is vertically penetrated through the rear half part of the second U-shaped shell 6; both ends of the truncated elastic thread 3 are respectively arranged in the first U-shaped groove 5-1 and the second U-shaped groove 6-1; tongues 7 are vertically arranged in both the first U-shaped shell 5 and the second U-shaped shell 6. The tongue 7 in the first U-shaped shell 5 can prevent the elastic thread 3 from sliding downward relative to the first U-shaped groove 5-1, and the tongue 7 in the second U-shaped shell 6 can prevent the elastic thread 3 from sliding upward.

[0046] When the first buckle and the second buckle are spliced with the truncated elastic thread 3 into the elastic ring 4, their shapes are as Figure OneAs shown, the two ends of the elastic line 3 are respectively led out from the upper and lower ends of the first buckle and the second buckle which are spliced into a whole, so that after the elastic ring 4 is ligated, the side walls of the first buckle and the second buckle can be closely attached to the root of the hemorrhoid. Compared with the method in which the two ends of the elastic line 3 are led out from the same end of the first buckle and the second buckle, this method effectively avoids the shaking of the first buckle and the second buckle during the use of the elastic ring 4, thereby reducing the discomfort of the patient in daily life after the ligation.

[0047] Furthermore, a locking block 5-2 is vertically provided on the left side wall of the first U-shaped shell 5, and a locking groove 6-2 is vertically opened on the right side wall of the second U-shaped shell 6. The first U-shaped shell 5 and the second U-shaped shell 6 can be engaged with each other through the locking block 5-2 and the locking groove 6-2.

[0048] refer to Figure 3 :

[0049] Furthermore, the main body includes a rod body 1-1, a first installation groove 1-1-1 is opened at the left end of the rod body 1-1, and a second installation groove 1-1-2 is opened at the upper end of the rod body 1-1. The first installation groove 1-1-1 and the second installation groove 1-1-2 are jointly used for installing the splicing device and the discharge mechanism, and a protective cover 1-1-3 is provided on the outer wall of the rod body 1-1.

[0050] Furthermore, the splicing device includes a first guide rail 8 and a second guide rail 9 arranged horizontally, a plurality of first buckles are arranged in a horizontal array in the first guide rail 8, and a plurality of second buckles are arranged in a horizontal array in the second guide rail 9; a first U-shaped rod 8-1 is fixedly connected horizontally in the first guide rail 8, a first U-shaped groove 5-1 is slidably connected to the first U-shaped rod 8-1, a vertically arranged wire groove 8-2 is opened at the left end of the first U-shaped rod 8-1, and a connecting port 8-3 that passes through the first U-shaped rod 8-1 is opened longitudinally at the right end of the wire groove 8-2, a winding device 3-1 is fixedly connected to the upper end of the second mounting groove 1-1-2, and the winding device 3-1 is used to wind up the elastic line 3; The end of the elastic wire 3 is led out by the winding device 3-1 and enters the protective cover 1-1-3, and enters the wire groove 8-2 through the connecting port 8-3 and extends to the left side of the first guide rail 8; the side wall of the first installation groove 1-1-1 is provided with a winding mechanism, and the winding mechanism is provided with a clamping mechanism. The second installation groove 1-1-2 is located at the first guide rail 8 and the second guide rail 9 and is provided with a pushing mechanism. The pushing mechanism is used to push the first buckle or the second buckle to the left into the clamping mechanism, and the winding mechanism is used to drive the first buckle in the clamping mechanism and the elastic wire 3 on the first buckle to wrap around the mounting ring 19. The winding mechanism is provided with a cutting mechanism, and the cutting mechanism is used to cut off the elastic wire 3.

[0051] The first U-shaped rod 8-1 is slidably connected to the first U-shaped groove 5-1, so that the first U-shaped rod 8-1 spreads the tongue piece 7 in the first U-shaped shell 5. At the same time, in cooperation with the wire groove 8-2 formed on the first U-shaped rod 8-1, the elastic wire 3 can be inserted into the first U-shaped groove 5-1, thereby facilitating the equipment to complete the work of threading the first buckle.

[0052] Further, the pushing mechanism includes a push plate 10. The push plate 10 is elastically slidably connected to the first guide rail 8 or the second guide rail 9. The push plate 10 is used to push the rightmost first buckle or second buckle. A pop-up block 11 is provided at the left end of the first buckle or second buckle located at the leftmost side on the first guide rail 8 or the second guide rail 9. The block 11 is used to prevent the first buckle or second buckle from moving to the left. A pressing plate 12 is provided at the upper end of the second first buckle or second buckle from the leftmost side. A first elastic telescopic rod 13 is fixedly connected to the upper end of the pressing plate 12. A connecting plate 14 is fixedly connected to the upper end of the first elastic telescopic rod 13. A third guide rail 15 is horizontally arranged at the upper end of the connecting plate 14. The third guide rail 15 is embedded in the inner wall of the protective sleeve 1-1-3. A fourth guide rail 16 is vertically and fixedly connected to the side wall of the upper end of the connecting plate 14. The fourth guide rail 16 is vertically slidably connected to the side wall of the third guide rail 15. A wedge block 15-1 is horizontally and elastically slidably connected to the third guide rail 15. A first air cylinder 17 is fixedly connected to the inner wall of the protective sleeve 1-1-3. The output shaft at the left end of the first air cylinder 17 is fixedly connected to the right end of the wedge block 15-1. The wedge surface of the wedge block 15-1 can squeeze the connecting plate 14 downward. A slider 15-2 is horizontally and elastically slidably connected to the third guide rail 15. The slider 15-2 is located on the left side of the wedge block 15-1. An arc-shaped rod 18 is elastically rotatably connected to the left side of the slider 15-2. The arc-shaped rod 18 always has a tendency to squeeze downward under the action of elastic force. A one-way wheel 18-1 is installed at the end of the arc-shaped rod 18. The one-way wheel 18-1 is located at the upper end of the leftmost first buckle or second buckle. The one-way wheel 18-1 can only roll to the right relative to the first buckle or second buckle. The block 11 is externally connected with a driving device. The driving device can control the block 11 to retract into the first guide rail 8 or the second guide rail 9 when the first air cylinder 17 pushes the wedge block 15-1 to move to the left. The left end of the first U-shaped rod 8-1 is flush with the left end of the second first buckle from the leftmost side.

[0053] Start the first cylinder 17, so that the first cylinder 17 pushes the wedge block 15-1 to move leftward, causing the latch 11 to retract into the first guide rail 8 or the second guide rail 9. Further, the first buckle or the second buckle can move leftward under the push of the push plate 10. During this process, as the wedge block 15-1 moves leftward, the wedge surface of the wedge block 15-1 squeezes the connecting plate 14 downward. Then, the connecting plate 14 squeezes the pressing plate 12 against the upper end of the first buckle or the second buckle, which is the second one from the leftmost side, to fix its position and prevent it from moving horizontally. At the same time, as the wedge block 15-1 moves leftward, the left end of the wedge block 15-1 pushes the slider 15-2 leftward, causing the slider 15-2 to drive the one-way wheel 18-1 and the first buckle or the second buckle that is pressed downward by the one-way wheel 18-1 to move leftward. Since the one-way wheel 18-1 can only roll rightward relative to the first buckle or the second buckle, during the leftward movement of the one-way wheel 18-1, it will push the leftmost first buckle or the second buckle leftward through friction, so that the first buckle or the second buckle enters the clamping mechanism position for subsequent operations. It should be noted that since there is no first U-shaped rod 8-1 in the leftmost first buckle, the tongue piece 7 in the leftmost first buckle will squeeze the elastic wire 3 and restrict the elastic wire 3 from sliding rightward relative to the first buckle. Thus, during the leftward movement of the first buckle, it can drive the elastic wire 3 into the clamping mechanism; when the first buckle and the second buckle that enter the clamping mechanism complete the splicing work and the elastic wire 3 is not cut off, the first cylinder 17 drives the wedge block 15-1 to reset leftward, causing the connecting plate 14 to move upward and reset under the action of elastic force. Then, the downward pressure of the pressing plate 12 decreases, and the pressing plate 12 can no longer limit the first buckle or the second buckle. At the same time, the slider 15-2 moves rightward and resets under the action of elastic force, driving the one-way wheel 18-1 to reset accordingly. Correspondingly, the latch 11 pops out from the first guide rail 8 or the second guide rail 9 to limit the leftward movement of the first buckle or the second buckle. At the same time, the original first buckle or the second buckle, which is the second one from the leftmost side, moves leftward to the latch 11 under the push of the push plate 10. During the process of moving to the position below the one-way wheel 18-1, since the one-way wheel 18-1 rolls rightward relative to the first buckle or the second buckle, during this process, the one-way wheel 18-1 enables the first buckle or the second buckle to move leftward to the position below the one-way wheel 18-1 by rolling. At the same time, after the original first buckle, which is the second one from the leftmost side, moves to the position below the one-way wheel 18-1, it disengages from the first U-shaped rod 8-1, enabling it to restrict the rightward movement of the elastic wire 3 through the tongue piece 7. In this way, a cycle of using the first buckle and the second buckle is completed.

[0054] Further, the wire winding mechanism includes a swivel ring 19, which is rotatably installed in the first installation groove 1-1-1. The swivel ring 19 is externally connected to a driving unit for driving the swivel ring 19 to rotate. The clamping mechanism is arranged on the side wall of the swivel ring 19.

[0055] Under the action of the pushing mechanism, the first buckle is first pushed into the clamping mechanism on the side wall of the rotating ring 19, and then the driving unit drives the rotating ring 19 to rotate around the rod body 1-1. After the first buckle rotates around the rod body 1-1 for one circle, it moves to align the engaging block 5-2 on the first buckle with the engaging groove 6-2 on the second buckle. At this time, driven by the first buckle, the elastic wire 3 winds around the rod body 1-1 for one circle. Then, the pushing mechanism controls the second buckle to move leftward and engage with the first buckle. During this process, with the assistance of the clamping mechanism, the elastic wire 3 enters the second buckle and is clamped by the tongue piece 7 inside the second buckle. Then, the cutting mechanism cuts off the elastic wire 3, so that the cut elastic wire 3, the first buckle and the second buckle form a complete elastic ring 4. Finally, the pushing mechanism pushes the complete elastic ring 4 out of the device.

[0056] Further, the clamping mechanism includes a mounting table 20, which is fixedly connected to the upper end of the side wall of the rotating ring 19. The front end of the mounting table 20 is rotatably connected with an arc-shaped shell 21. The arc-shaped shell 21 is externally connected with a driving unit, and the driving unit is used to control the arc-shaped shell 21 to rotate to the front end of the mounting table 20 so that the arc-shaped shell 21 does not interfere with the leftward movement of the first buckle. A limiting block 22 is vertically and elastically installed on the upper end surface of the mounting table 20. A chamfer is provided at the right end of the limiting block 22. The limiting block 22 is used to cooperate with the arc-shaped shell 21 to engage the first buckle. A guiding block 23 is fixedly connected to the right side part of the mounting table 20 where the first installation groove 1-1-1 is located. Round corners are provided at the front and rear ends of the guiding block 23. A avoiding groove 23-1 is horizontally opened in the guiding block 23. The avoiding groove 23-1 is used for the second buckle to horizontally pass through the guiding block 23. The highest points of the guiding block 23 at the front and rear parts of the avoiding groove 23-1 are flush with the lower end surface of the second U-shaped groove 6-1.

[0057] During the process of the first buckle being pushed into the clamping mechanism, it first enters between the limiting block 22 and the arc-shaped shell 21, and is fixed on the mounting table 20 by the limiting block 22 and the arc-shaped shell 21 together. Then, the rotating ring 19 rotates, causing the mounting table 20 to drive the first buckle to rotate around the rod body 1-1. Further, the first buckle drives the elastic wire 3 to rotate around the rod body 1-1 for one circle. The first buckle is aligned with the second buckle, so that the elastic wire 3 winds around the rod body 1-1 for one circle. Refer to Figure 14, from the structural characteristics of the guiding block 23 and the second guide rail 9, it can be known that since the elastic wire 3 wound around the rod body 1-1 will go around the upper end of the guiding block 23, the elastic wire 3 passing through the avoidance groove 23-1 will be aligned with the second U-shaped groove 6-1. Then, the second buckle moves leftward through the avoidance groove 23-1 and engages with the first buckle. During this process, since the second U-shaped groove 6-1 on the second buckle is aligned with the elastic wire 3 at the avoidance groove 23-1, the elastic wire 3 at the avoidance groove 23-1 will be pressed into the second U-shaped groove 6-1 as the second buckle moves leftward. At the same time, during this process, the chamfer on the right side of the limiting block 22 will be squeezed by the second buckle and move downward and retract into the mounting table 20 under the extrusion of the second buckle; subsequently, the arc-shaped shell 21 rotates to the front side of the mounting table 20 to avoid interfering with the subsequent process of the elastic ring 4 being pushed out by the pushing mechanism.

[0058] Further, the truncating mechanism includes a knife groove 24, which is horizontally opened on the rounded corner on the front side of the guiding block 23. A second cylinder 25 is fixedly connected inside the protective sleeve 1-1-3. The output shaft at the lower end of the second cylinder 25 is fixedly connected with a cutter 26, and the cutter 26 is used to cooperate with the knife groove 24 to truncate the elastic wire 3.

[0059] Further, the pushing mechanism includes a third cylinder 27, which is fixedly connected in the second installation groove 1-1-2. A push block 28 is horizontally slidably connected in the first installation groove 1-1-1, and the output shaft on the left side of the third cylinder 27 is fixedly connected with the push block 28.

[0060] The third cylinder 27 pushes the push block 28 to the left, so that the push block 28 pushes the elastic ring 4 wound on the first installation groove 1-1-1 out of the left end of the rod body 1-1 from the first installation groove 1-1-1.

Claims

1. A hemorrhoid ligation stapler, comprising a main body. The main body is rod-shaped. An adsorption device (2) is arranged on the inner wall of the left end of the main body. A handle is fixedly connected to the lower side of the right end of the main body. A control switch is arranged on the handle. It is characterized in that: Including a plurality of independent first buckles and second buckles; A roll of elastic thread (3); A splicing device, which is arranged in the main body and is used to intercept a section of elastic thread (3) and cooperate with a first buckle and a second buckle to jointly splice into an independent closed elastic loop (4) in the main body; A discharging mechanism, which is used to push the elastic loop (4) out of the main body.

2. The hemorrhoid ligation stapler according to claim 1, wherein: The first buckle and the second buckle respectively include two first U-shaped shells (5) and second U-shaped shells (6) that are symmetrically arranged left and right. The first half of the first U-shaped shell (5) is vertically penetrated with a first U-shaped groove (5-1), and the second half of the second U-shaped shell (6) is vertically penetrated with a second U-shaped groove (6-1); both ends of the truncated elastic thread (3) are respectively arranged in the first U-shaped groove (5-1) and the second U-shaped groove (6-1); tongues (7) are vertically arranged in both the first U-shaped shell (5) and the second U-shaped shell (6). The tongue (7) in the first U-shaped shell (5) can prevent the elastic thread (3) from sliding downward relative to the first U-shaped groove (5-1), and the tongue (7) in the second U-shaped shell (6) can prevent the elastic thread (3) from sliding upward relative to it.

3. The hemorrhoid ligation stapler according to claim 2, wherein: A clamping block (5-2) is vertically arranged on the left side wall of the first U-shaped shell (5), and a clamping groove (6-2) is vertically opened on the right side wall of the second U-shaped shell (6). The first U-shaped shell (5) and the second U-shaped shell (6) can be clamped through the clamping block (5-2) and the clamping groove (6-2).

4. A hemorrhoid ligation stapler according to claim 3, characterized in that: The main body includes a rod body (1-1). A first installation groove (1-1-1) is opened at the left end of the rod body (1-1), and a second installation groove (1-1-2) is opened at the upper end of the rod body (1-1). The first installation groove (1-1-1) and the second installation groove (1-1-2) are jointly used to install the splicing device and the discharging mechanism. A protective sleeve (1-1-3) is sleeved on the outer wall of the rod body (1-1).

5. A hemorrhoid ligation stapler according to claim 4, characterized in that: The splicing device includes a first guide rail (8) and a second guide rail (9) arranged horizontally. A plurality of the first buckles are arranged in a horizontal array in the first guide rail (8), and a plurality of the second buckles are arranged in a horizontal array in the second guide rail (9); a first U-shaped rod (8-1) is fixedly connected horizontally in the first guide rail (8), and the first U-shaped groove (5-1) is slidably connected to the first U-shaped rod (8-1). A wire groove (8-2) arranged vertically is opened at the left end of the first U-shaped rod (8-1), and a communication port (8-3) penetrating the first U-shaped rod (8-1) is longitudinally opened at the right end of the wire groove (8-2). A winding device (3-1) is fixedly connected to the upper end of the second installation groove (1-1-2), and the winding device (3-1) is used for winding the elastic wire (3); the end of the elastic wire (3) is led out by the winding device (3-1) and enters the protective sleeve (1-1-3), and enters the wire groove (8-2) through the communication port (8-3) and extends to the left side of the first guide rail (8); a wire winding mechanism is arranged on the side wall of the first installation groove (1-1-1), and a clamping mechanism is arranged on the wire winding mechanism. Pushing mechanisms are arranged at both the first guide rail (8) and the second guide rail (9) where the second installation groove (1-1-2) is located. The pushing mechanisms are used for pushing the first buckle or the second buckle into the clamping mechanism to the left. The wire winding mechanism is used for driving the first buckle in the clamping mechanism and the elastic wire (3) on the first buckle to wind around the mounting ring (19) for one circle. The wire winding mechanism is provided with a cutting mechanism, and the cutting mechanism is used for cutting off the elastic wire (3); Through the sliding connection between the first U-shaped rod (8-1) and the first U-shaped groove (5-1), the first U-shaped rod (8-1) spreads the tongue piece (7) in the first U-shaped shell (5). At the same time, in cooperation with the wire groove (8-2) opened on the first U-shaped rod (8-1), the elastic wire (3) can be inserted into the first U-shaped groove (5-1), thereby facilitating the equipment to complete the work of threading the first buckle.

6. The hemorrhoid ligation stapler according to claim 5, characterized in that: The pushing mechanism includes a push plate (10). The push plate (10) is elastically slidably connected to the first guide rail (8) or the second guide rail (9). The push plate (10) is used to push the rightmost first buckle or second buckle. At the left end of the leftmost first buckle or second buckle, the first guide rail (8) or the second guide rail (9) is provided with a pop-up latch (11). The latch (11) is used to prevent the first buckle or the second buckle from moving to the left. At the upper end of the second leftmost first buckle or second buckle, there is a pressing plate (12). The upper end of the pressing plate (12) is fixedly connected to a first elastic telescopic rod (13). The upper end of the first elastic telescopic rod (13) is fixedly connected to a connecting plate (14). Horizontally arranged on the upper end of the connecting plate (14) is a third guide rail (15). The third guide rail (15) is embedded in the inner wall of the protective sleeve (1-1-3). Vertically fixedly connected to the side wall of the upper end of the connecting plate (14) is a fourth guide rail (16). The fourth guide rail (16) is vertically slidably connected to the side wall of the third guide rail (15). Horizontally elastically slidably connected to the third guide rail (15) is a wedge block (15-1). Fixedly connected to the inner wall of the protective sleeve (1-1-3) is a first cylinder (17). The output shaft at the left end of the first cylinder (17) is fixedly connected to the right end of the wedge block (15-1). The inclined surface of the wedge block (15-1) can press the connecting plate (14) downward. Horizontally elastically slidably connected to the third guide rail (15) is a slider (15-2). The slider (15-2) is located on the left side of the wedge block (15-1). An arc-shaped rod (18) is elastically rotatably connected to the left side of the slider (15-2). The arc-shaped rod (18) always has a tendency to press downward under the action of elastic force. A one-way wheel (18-1) is installed at the end of the arc-shaped rod (18). The one-way wheel (18-1) is located at the upper end of the leftmost first buckle or second buckle. The one-way wheel (18-1) can only roll to the right relative to the first buckle or the second buckle. The latch (11) is externally connected to a driving device. The driving device can control the latch (11) to retract into the first guide rail (8) or the second guide rail (9) when the first cylinder (17) pushes the wedge block (15-1) to move to the left. The left end of the first U-shaped rod (8-1) is flush with the left end of the second leftmost first buckle.

7. A hemorrhoid ligation stapler according to claim 6, characterized in that: The wire winding mechanism includes a rotating ring (19). The rotating ring (19) is rotatably embedded in the first installation groove (1-1-1). The rotating ring (19) is externally connected to a driving unit. The driving unit is used to drive the rotating ring (19) to rotate. The clamping mechanism is arranged on the side wall of the rotating ring (19).

8. The hemorrhoid ligation stapler according to claim 7, characterized in that: The clamping mechanism includes a mounting table (20), which is fixedly connected to the upper end of the side wall of the rotating ring (19). The front end of the mounting table (20) is rotatably connected to an arc-shaped shell (21). The arc-shaped shell (21) is externally connected to a driving unit, and the driving unit is used to control the rotation of the arc-shaped shell (21) to the front end of the mounting table (20) so that the arc-shaped shell (21) does not interfere with the leftward movement of the first buckle. A limiting block (22) is vertically and elastically embedded in the upper end surface of the mounting table (20). A chamfer is provided at the right end of the limiting block (22). The limiting block (22) is used to cooperate with the arc-shaped shell (21) to clamp the first buckle. A guiding block (23) is fixedly connected to the right side part of the mounting table (20) where the first installation groove (1-1-1) is located. Rounded corners are provided at both the front and rear ends of the guiding block (23). A avoiding groove (23-1) is horizontally opened in the middle position of the guiding block (23). The avoiding groove (23-1) is used for the second buckle to horizontally pass through the guiding block (23). The highest positions of the guiding block (23) at the front and rear parts of the avoiding groove (23-1) are flush with the lower end surface of the second U-shaped groove (6-1).

9. The hemorrhoid ligation stapler according to claim 8, wherein: The cutting mechanism includes a knife groove (24), which is horizontally opened on the rounded corner at the front side of the guiding block (23). A second cylinder (25) is fixedly connected in the protective sleeve (1-1-3). The output shaft at the lower end of the second cylinder (25) is fixedly connected to a cutting knife (26). The cutting knife (26) is used to cooperate with the knife groove (24) to cut off the elastic wire (3).

10. A hemorrhoid ligation stapler according to claim 9, characterized in that: The pushing mechanism includes a third cylinder (27), which is fixedly connected in the second installation groove (1-1-2). A pushing block (28) is horizontally slidably connected in the first installation groove (1-1-1). The output shaft on the left side of the third cylinder (27) is fixedly connected to the pushing block (28).

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