Anal fistula postoperative rubber band tightening instrument

Abstract

The utility model provides an anal fistula postoperative rubber band tightening instrument which comprises an outer tube, one end of the outer tube is connected with an inner guide assembly in an inserted mode, one side of the inner guide assembly is connected to the interior of the outer tube in a penetrating mode, a bundling assembly is fixed to the outer wall of the inner guide assembly, the inner guide assembly moves horizontally on the outer tube to pull the bundling assembly to be tightened, and the outer wall of the inner guide assembly is connected with a gear assembly in a sleeved mode. The gear assembly is used for stopping translation positioning of the inner guide assembly on the outer pipe, the outer wall of the outer pipe is sleeved with a positioning ring, a clamping and locking assembly is fixed to the side wall of the positioning ring, one side of the gear assembly is connected into the clamping and locking assembly in a penetrating mode, and the gear assembly is locked through the clamping and locking assembly to position the translation distance of the inner guide assembly. The side, away from the clamping lock assembly, of the positioning ring is connected with an internal expansion assembly. According to the utility model, the inner guide assembly is arranged on the outer tube, and the bundling structure of the bundling assembly is annularly sleeved on the inner tube, so that the bundling structure can be quickly and accurately stretched into and close to a rubber band tightening position of a patient.

Description

TECHNICAL FIELD

[0001] The utility model relates to an anal fistula operation instrument technical field, concretely relates to a skin rubber band tightening instrument after anal fistula operation. BACKGROUND

[0002] For high anal fistula patients, if the anal sphincter is cut off at one time during treatment, anal incontinence is prone to occur, in order to avoid this problem, the thread hanging operation is usually used; the thread hanging process is: a probe is inserted from the external orifice of the anal fistula, and a rubber band is tied on the head of the probe, and the rubber band is pulled out through the other side of the probe; then the rubber band is tied tightly;

[0003] At present, the tight rubber band operation of high anal fistula in clinic is mainly through manual operation, the operator first pulls the rubber band, the pulling degree is appropriate according to the pain tolerance of the patient, then a blood vessel clamp is used to clamp the rubber band close to the proximal end of the fistula, and an assistant ties a knot close to the inner side of the blood vessel clamp to tighten the rubber band, but this operation mode has the following problems:

[0004] 1. The knotted silk thread cannot be shaped, and when it is inserted into the patient's affected position, the knotted silk thread is prone to deformation, and it is difficult to position the rubber band for binding operation, which makes the binding operation inconvenient and increases the pain of the patient;

[0005] 2. When the rubber band is tightened, the silk thread needs to be pulled to tighten the knot, so that the rubber band is pulled during the tightening process, the pulling range cannot be guaranteed, the operation is unstable, and the patient's affected part is further damaged.

[0006] In summary, there is a need for a simple and stable anal fistula postoperative rubber band tightening instrument. UTILITY MODEL CONTENTS

[0007] In view of the deficiencies of the prior art, the utility model provides a kind of anal fistula postoperative rubber band tightening instrument, solve the problems mentioned in background art.

[0008] To achieve the above object, the utility model is realized by the following technical scheme:

[0009] A kind of anal fistula postoperative rubber band tightening instrument, including outer tube, the outer tube one end is inserted with inner guide component, inner guide component one side is connected to the inside of outer tube, inner guide component outer wall is fixed with pull binding component, inner guide component is pulled by translation on outer tube to tighten pull binding component, inner guide component outer wall is sleeved with stop position component, stop position component is used to stop the translation of inner guide component on outer tube and position, outer tube outer wall is sleeved with positioning ring, the side wall of positioning ring is fixed with locking assembly, the side of stop position component is connected to the inside of locking assembly, stop position component is locked by locking assembly to position the translation distance of inner guide component, positioning ring is connected with inner expansion component away from the side of locking assembly.

[0010] The inner guide assembly comprises a plug-in sleeve, an external sleeve, an inner tube, and a first positioning pin, one end of the inner tube is inserted into the plug-in sleeve, the plug-in sleeve is sleeved on the outer wall of the outer tube, one end of the plug-in sleeve is connected with the external sleeve, the external sleeve is sleeved with a sleeve, one end of the sleeve is connected with a water pipe, the inner tube, the external sleeve and the water pipe are connected through the inside, the inner tube is connected through the inside of the outer tube, the other end of the inner tube extends outside the outer tube and forms a stepped structure, one end of the pull bundle assembly is a ring bundle structure, the ring bundle structure of the pull bundle assembly is sleeved on the stepped structure of the inner tube, the outer wall of the plug-in sleeve is connected through the first positioning pin, and the bottom end of the first positioning pin is attached to the outer wall of the outer tube.

[0011] Further, the pull bundle assembly comprises a guide block, a second sliding block, a second positioning pin, a pull rope and a knot sleeve, the guide block is fixed on the outer wall of the plug-in sleeve, the second sliding block is slidably connected in the guide block, the second positioning pin is connected through the inside of the second sliding block, one end of the second positioning pin is attached to the outer wall of the plug-in sleeve, the second sliding block is connected with the pull rope on one side, the pull rope is connected with the knot sleeve on one end and penetrates the outside of the guide block, the knot sleeve is set as a ring bundle structure, and the knot sleeve is sleeved on the outer wall of the inner tube.

[0012] Further, the guide block is provided with a first sliding groove in the inside, the second sliding block is slidably connected in the first sliding groove, the first sliding groove is provided with a second sliding groove on the top surface and the bottom surface, the top surface and the bottom surface of the second sliding block are fixed with a limiting block, and the limiting block is slidably connected in the second sliding groove.

[0013] Further, the outer wall of the outer tube is fixed with a rope guide tube, the positioning ring is provided with a through hole in the inside, the through hole is mirror-imaged about the vertical center line of the positioning ring and has two, the pull rope is connected through the inside of the through hole and the rope guide tube, and the inside diameter of the rope guide tube is smaller than the knot diameter of the knot sleeve.

[0014] Further, the gear assembly comprises a sleeve ring, a second handle, a guide plate and a plug-in plate, the sleeve ring is sleeved on the outer wall of the plug-in sleeve, the end surface of the sleeve ring away from the positioning ring is fixed with the guide plate, the guide block is slidably connected in the sleeve ring, the sleeve ring is connected with the second handle on one side, the second handle is connected with the plug-in plate on the side wall, the plug-in plate is inserted into the inside of the locking assembly, the plug-in plate is provided with a plurality of locking grooves on one side, and the locking assembly is positioned by being inserted into the locking grooves.

[0015] Further, the guide plate is a circular arc structure, the center of the circular arc of the guide plate and the center of the plug-in sleeve are located on the same horizontal center line, the guide plate is mirror-imaged about the horizontal center line of the sleeve ring and has two, one end of the plug-in sleeve is inserted between the circular arc concave surfaces of the two guide plates, and the guide block is slidably connected between the two guide plates.

[0016] Further, the inner guide assembly further comprises a connecting plate and a third push block, the connecting plate is connected to the outer wall of the plug barrel, and the third push block is connected to the side of the connecting plate away from the plug barrel and is slidingly sleeved to the outer wall of the plug plate.

[0017] Further, the locking assembly comprises a first handle, a plug, a spring sheet, a first sliding block and a first push block, the first handle is fixed to the outer wall of the positioning ring, the plug is arranged in the first handle, the plug is inserted into the locking groove, the spring sheet is connected between the other side of the plug and the inner wall of the first handle, the first sliding block is connected to the side wall of the plug, and the first push block is fixed to the side of the first sliding block away from the plug and is slidingly attached to the outer wall of the first handle.

[0018] Further, the inner expansion assembly comprises a fixing frame, a fixing plate, a guide rod, a spring, an air bag, a push plate, an air pipe and an air cushion, the fixing frame is fixed to the outer wall of the positioning ring, the fixing plate is connected to the side of the fixing frame, the guide rod is inserted into the fixing plate, the push plate is connected to one end of the guide rod, the spring is sleeved to the outer wall of the guide rod, one end of the spring is connected to the side wall of the fixing plate, the air bag is connected to the side wall of the fixing plate, the push plate is attached to the side of the air bag, the air pipe is connected to the side of the air bag, the positioning block is fixed to the outer wall of the outer pipe, the air pipe is connected to the through hole and the positioning block, and the air cushion is connected to the end of the air pipe away from the air bag and is sleeved to the outer wall of the outer pipe.

[0019] Further, the inner guide assembly further comprises a second push block, the second push block is fixed to the outer wall of the plug barrel, and the second push block is attached to the side wall of the push plate.

[0020] The utility model provides a kind of elastic band tightening instrument after anal fistula operation. Compared with prior art, it has the following beneficial effects:

[0021] 1, by setting the inner guide assembly on the outer pipe, the bundling structure of the bundling assembly is annularly sleeved on the inner tube, which can quickly and accurately extend the bundling structure into and close to the elastic band tightening position of the patient, then only by pulling the plug barrel, the inner tube is received into the outer tube, the positioning of the bundling structure can be released, and the annular bundling structure of the bundling assembly is continuously pulled and tightened by pulling the plug barrel, the convenience and flexibility of operation are improved, and the pain of the patient is reduced.

[0022] 2, by setting the first positioning peg, the plug barrel can be positioned, and after the locking of the first positioning peg is released, the gear assembly locked and positioned by the locking assembly is adjusted, the first positioning peg is stopped by the adjusted gear assembly, so as to control the amplitude of the plug barrel moving to tighten the bundling assembly, to ensure that the tightening amplitude is within the range that the patient can bear, thereby improving the stability of the tightening operation.

[0023] 3, after the inner cylinder is extended into the elastic band position, water can be added to the inner tube through the water pipe, so as to direct the elastic band position for flushing, and further improve the convenience of bundling operation. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This invention provides a schematic diagram of the structure of a postoperative elastic band tightening device for anal fistula.

[0026] Figure 2 A schematic diagram of the inner guide component structure of this utility model is shown;

[0027] Figure 3 A schematic diagram of the connection structure between the inner guide assembly, the binding assembly, and the stop assembly of this utility model is shown.

[0028] Figure 4 A schematic diagram of the connection structure between the second slider and the guide block of this utility model is shown;

[0029] Figure 5 A schematic diagram of the connection structure between the inner expansion component and the positioning ring of this utility model is shown;

[0030] Figure 6 A schematic diagram of the connection structure between the inner expansion component and the outer tube of this utility model is shown;

[0031] Figure 7 This diagram shows the internal connection structure between the locking assembly and the locking plate of this utility model.

[0032] The diagram shows: 1. Outer tube; 11. Guide rope tube; 12. Positioning block; 2. Positioning ring; 21. Through hole; 3. Locking assembly; 31. First grip; 32. Pin; 33. Elastic piece; 34. First slider; 35. First push block; 4. Inner guide assembly; 41. Insert cylinder; 42. Outer connecting cylinder; 43. Inner tube; 44. Second push block; 45. First positioning bolt; 46. Connecting plate; 47. Third push block; 5. Inner expansion assembly; 51. Fixing frame; 52. Fixing plate; 53. Guide rod; 54. Spring; 55. Airbag; 56. Push plate; 57. Air tube; 58. Air cushion; 6. Bundling assembly; 61. Guide block; 611. First slide groove; 612. Second slide groove; 62. Second slider; 621. Limiting block; 63. Second positioning bolt; 64. Pull rope; 65. Rope knot sleeve; 7. Stop assembly; 71. Loop; 72. Second grip; 73. Guide plate; 74. Locking plate; 741. Locking groove; 8. Water pipe; 9. Sleeve. Detailed Implementation

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0034] Embodiment one

[0035] In order to solve the technical problems in the background art, the following skin tightening device for post-anal fistula surgery is given:

[0036] In combination with Figures 1-7 The utility model provides a skin tightening device for post-anal fistula surgery, which comprises an outer tube 1, one end of the outer tube 1 is connected with an inner guide assembly 4, one side of the inner guide assembly 4 is connected to the inside of the outer tube 1, a bundling assembly 6 is fixed to the outer wall of the inner guide assembly 4, the inner guide assembly 4 is translated on the outer tube 1 to pull the bundling assembly 6 to tighten, a detent assembly 7 is sleeved on the outer wall of the inner guide assembly 4, the detent assembly 7 is used to stop the translation of the inner guide assembly 4 on the outer tube 1, a positioning ring 2 is sleeved on the outer wall of the outer tube 1, a locking assembly 3 is fixed to the side wall of the positioning ring 2, one side of the detent assembly 7 is connected to the inside of the locking assembly 3, the detent assembly 7 is locked by the locking assembly 3 to position the translation distance of the inner guide assembly 4, and an inner expansion assembly 5 is connected to the side, away from the locking assembly 3, of the positioning ring 2.

[0037] The inner guide assembly 4 comprises a plug barrel 41, an external barrel 42, an inner tube 43 and a first positioning bolt 45, one end of the inner tube 43 is connected to the inside of the plug barrel 41, the plug barrel 41 is sleeved on the outer wall of the outer tube 1, one end of the plug barrel 41 is connected with the external barrel 42, the external barrel 42 is sleeved with a sleeve 9, one end of the sleeve 9 is connected with a water pipe 8, the inner tube 43, the external barrel 42 and the water pipe 8 are connected through, the inner tube 43 is connected through to the inside of the outer tube 1, the other end of the inner tube 43 is extended to the outside of the outer tube 1 and forms a stepped structure, one end of the bundling assembly 6 is a ring bundling structure, the ring bundling structure of the bundling assembly 6 is sleeved on the outer wall of the stepped structure formed by the inner tube 43, the first positioning bolt 45 is connected through to the outer wall of the plug barrel 41, and the bottom end of the first positioning bolt 45 is attached to the outer wall of the outer tube 1.

[0038] According to the above structure, the following effects can be achieved:

[0039] 1. By placing the inner guide component 4 on the outer tube 1 and looping the binding structure of the binding component 6 around the inner tube 43, the binding structure can be quickly and accurately inserted and brought close to the patient's rubber band tightening position. Then, by simply pulling the insert 41, the inner tube 43 can be retracted into the outer tube 1, thus releasing the positioning of the binding structure. At the same time, continue to pull the insert 41 to pull and tighten the loop binding structure of the binding component 6, which improves the convenience and flexibility of operation and reduces the patient's pain.

[0040] 2. By setting the first positioning bolt 45, the insertion tube 41 can be positioned. After the first positioning bolt 45 is released from locking, the locking component 3 is adjusted to lock the positioning stop component 7. The adjusted stop component 7 stops the first positioning bolt 45, thereby controlling the range of movement of the insertion tube 41 to tighten the binding component 6, so as to ensure that it is within the range of tightening range that the patient can tolerate, thereby improving the stability of the tightening operation.

[0041] 3. After the inner tube is inserted into the rubber band position, water can be added to the inner tube 43 through the water pipe 8 to rinse the rubber band position in a directional manner, further improving the convenience of the binding operation.

[0042] In this embodiment, the binding assembly 6 includes a guide block 61, a second slider 62, a second positioning bolt 63, a pull rope 64, and a knot sleeve 65. The guide block 61 is fixed to the outer wall of the insert 41. The second slider 62 is slidably connected inside the guide block 61. The second positioning bolt 63 is connected through the second slider 62. One end of the second positioning bolt 63 is attached to the outer wall of the insert 41. The pull rope 64 is connected to one side of the second slider 62. One end of the pull rope 64 passes through the outside of the guide block 61 and is connected to the knot sleeve 65. The knot sleeve 65 is set as a ring binding structure and is sleeved on the outer wall of the inner tube 43.

[0043] By sliding and adjusting the second slider 62 inside the guide block 61, the knot sleeve 65 can be pre-adjusted to ensure that the knot sleeve 65 is stably fitted onto the outer wall of the inner tube 43. Then, by further sliding and tightening the knot sleeve 65, the tightening range of the knot sleeve 65 at the moment the inner tube 43 is pulled out can be adjusted, thereby ensuring that the knot sleeve 65 can stably tighten the rubber band at the moment of tightening.

[0044] In this embodiment, the guide block 61 has a first groove 611 inside, the second slider 62 is slidably connected to the inside of the first groove 611, the top and bottom surfaces of the first groove 611 are both provided with second grooves 612, the top and bottom surfaces of the second slider 62 are both fixed with limit blocks 621, and the limit blocks 621 are slidably connected to the inside of the second grooves 612.

[0045] In this embodiment, a guide tube 11 is fixed to the outer wall of the outer tube 1, and a through hole 21 is opened inside the positioning ring 2. There are two through holes 21 mirrored about the vertical center line of the positioning ring 2. The pull rope 64 passes through and connects the through hole 21 and the inside of the guide tube 11. The inner diameter of the guide tube 11 is smaller than the knot diameter of the knot sleeve 65.

[0046] By setting the guide tube 11, the knot sleeve 65 can be stopped when the pull rope 64 is pulled. After the inner tube 43 is pulled out from the inside of the knot sleeve 65, the knot sleeve 65 can be tightened at the end of the guide tube 11 after the pull rope 64 is pulled. This avoids pulling on the patient's affected area when tightening the knot sleeve 65, and improves the ease of operation.

[0047] Example 2

[0048] like Figures 2-7 As shown, based on the above embodiments, this embodiment further provides the following:

[0049] To achieve the above effect, the following structure is adopted;

[0050] The stop assembly 7 includes a collar 71, a second grip 72, a guide plate 73, and a locking plate 74. The collar 71 is sleeved on the outer wall of the insert 41. The guide plate 73 is fixed to the end face of the collar 71 away from the positioning ring 2. The guide block 61 is slidably connected to the inside of the collar 71. The second grip 72 is connected to one side of the collar 71. The locking plate 74 is connected to the side wall of the second grip 72. The locking plate 74 is inserted into the inside of the locking assembly 3. Multiple locking grooves 741 are opened on one side of the locking plate 74. The locking assembly 3 positions the locking plate 74 by inserting it into the locking grooves 741.

[0051] By adjusting the locking position of the locking plate 74 inside the locking assembly, the distance between the collar 71 and the positioning ring 2 is adjusted, so that the insert cylinder 41 moves between the positioning ring 2 and the collar 71 to pull the pull rope 64, thereby improving the operational stability.

[0052] In this embodiment, the guide plate 73 has an arc-shaped structure. The center of the arc of the guide plate 73 and the center of the insert 41 are located on the same horizontal center line. There are two guide plates 73 mirror images of the horizontal center line of the collar 71. One end of the insert 41 is inserted between the concave surfaces of the arcs of the two guide plates 73. The guide block 61 is slidably connected between the two guide plates 73.

[0053] When the insert 41 moves to adjust the pull rope 64, the two guide plates 73 guide the translation of the insert 41 and the guide block 61, which further improves the stability of the adjusting insert 41.

[0054] In this embodiment, the inner guide assembly 4 further includes a connecting plate 46 and a third push block 47. The connecting plate 46 is connected to the outer wall of the insert 41, and the third push block 47 is connected to the side of the connecting plate 46 away from the insert 41. The third push block 47 is slidably sleeved on the outer wall of the locking plate 74.

[0055] By sliding the third push block 47 on the locking plate 74 to move the insertion cylinder 41, the distance of the translation adjustment of the insertion cylinder 41 can be observed intuitively, thereby improving the accuracy of the movement adjustment of the insertion cylinder 41.

[0056] Example 3

[0057] like Figures 2-7 As shown, based on the above embodiments, this embodiment further provides the following:

[0058] To achieve the above effect, the following structure is adopted;

[0059] The locking assembly includes a first grip 31, a pin 32, an elastic piece 33, a first slider 34, and a first push block 35. The first grip 31 is fixed to the outer wall of the positioning ring 2. The first grip 31 is provided with a pin 32 inside. One side of the pin 32 is inserted into the locking groove 741. The other side of the pin 32 is connected to the inner wall of the first grip 31 with an elastic piece 33. The side wall of the pin 32 is connected to the first slider 34. The first push block 35 is fixed on the side of the first slider 34 away from the pin 32. The first push block 35 slides against the outer wall of the first grip 31.

[0060] In this embodiment, the inner expansion component 5 includes a fixing frame 51, a fixing plate 52, a guide rod 53, a spring 54, an airbag 55, a push plate 56, an air tube 57, and an air cushion 58. The fixing frame 51 is fixed to the outer wall of the positioning ring 2. The fixing plate 52 is connected to one side of the fixing frame 51. The guide rod 53 is inserted into the inside of the fixing plate 52. One end of the guide rod 53 is connected to the push plate 56. The spring 54 is sleeved on the outer wall of the guide rod 53. One end of the spring 54 is connected to the side wall of the fixing plate 52. The airbag 55 is connected to the side wall of the fixing plate 52. One side of the push plate 56 is fitted with the airbag 55. The air tube 57 is connected through one side of the airbag 55. The positioning block 12 is fixed to the outer wall of the outer tube 1. The air tube 57 is connected through the through hole 21 and the inside of the positioning block 12. The end of the air tube 57 away from the airbag 55 is connected through the air cushion 58. The air cushion 58 is sleeved on the outer wall of the outer tube 1.

[0061] Before inserting the outer tube 1 into the patient's affected area for bandaging, the airbag 55 is compressed by pushing the push plate 56, which inflates the connected air cushion 58, thereby expanding the operating space and further improving the convenience of operation.

[0062] In this embodiment, the inner guide assembly 4 further includes a second push block 44, which fixes the outer wall of the insert 41, and one side of the second push block 44 is attached to the side wall of the push plate 56.

[0063] Before inserting the outer tube 1 into the patient's affected area, the movable insert 41 can be brought close to the positioning ring 2, causing the second pusher 44 to push the pusher plate 56 to compress the airbag 55. Then, when the movable insert 41 moves away from the positioning ring 2, the push on the pusher plate 56 is released, thereby restoring the airbag 55 and causing the air cushion 58 to contract. The operation is simple.

[0064] Working principle and usage process of this utility model:

[0065] First press Figures 1-7 Pushing the third push block 47 moves the insert 41 on the outer tube 1, causing the insert 41 to fit against the positioning ring 2. The second push block 44 pushes the push plate 56 to compress the airbag 55. The airbag 55 is pressurized through the air tube 57 and the air cushion 58, causing the air cushion 58 to expand. Then, the first positioning bolt 45 is rotated to clamp onto the outer wall of the outer tube 1. Then, the rope knot sleeve 65 is fitted onto the outer wall of the inner tube 43 and stopped at the end face of the outer tube 1. Then, it slides inside the guide block 61. The guide block 61 pulls the pull rope 64 to pre-tighten the rope knot sleeve 65. Rotate the second positioning bolt 63 to fit tightly against the outer wall of the insert 41 to position the guide block 61. Then, hold the first handle 31 and push the first push block 35 to separate the pin 32 from the locking plate 74. With the other hand, push the second handle 72 to adjust the distance between the collar 71 and the positioning ring 2 to adjust the range of movement of the insert 41. During adjustment, the locking plate 74 slides inside the first handle 31. When it reaches the adjustment position, the elastic piece 33 pushes the pin 32 to insert into the corresponding locking groove 741.

[0066] Then, the outer tube 1 is inserted into the rubber band position of the patient's affected area. The air cushion 58 supports the surrounding area. Water is introduced into the inner tube 43 through the water pipe 8 to rinse the rubber band position and allow the rubber band to extend into the inner tube 43. Then, the first positioning bolt 45 is rotated to release the positioning of the insert 41 and push the third push block 47 to move the insert 41 away from the positioning ring 2. The compressed air bag 55 inflates and recovers, thereby causing the air cushion 58 to contract. At the same time, the inner tube 43 slides inside the outer tube 1. Under the stopping action of the outer tube 1, the rope knot 65 separates from the inner tube 43, and the rubber band of the patient's affected area is inserted into the rope knot 65.

[0067] Finally, continue sliding the insert 41 to pull the pull rope 64. The rope knot sleeve 65 further contracts under the stop of the guide tube 11 until the rope knot sleeve 65 tightens the rubber band. Finally, use scissors to cut the pull rope 64 and the rope knot sleeve 65 apart.

[0068] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0069] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A rubber band tightening device after anal fistula surgery, characterized in that: The system includes an outer tube, one end of which is inserted with an inner guide assembly. One side of the inner guide assembly is connected through the interior of the outer tube. A binding assembly is fixed to the outer wall of the inner guide assembly. The inner guide assembly is pulled and tightened by translating on the outer tube. A stop assembly is sleeved on the outer wall of the inner guide assembly to stop the translation and positioning of the inner guide assembly on the outer tube. A positioning ring is sleeved on the outer wall of the outer tube. A locking assembly is fixed to the side wall of the positioning ring. One side of the stop assembly is connected through the interior of the locking assembly. The stop assembly is locked by the locking assembly to position the translation distance of the inner guide assembly. An inner expansion assembly is connected to the side of the positioning ring away from the locking assembly. The inner guide assembly includes a tube, an outer tube, an inner tube, and a first positioning bolt. One end of the inner tube is inserted into the inside of the tube, the tube is sleeved on the outer wall of the outer tube, one end of the tube is connected to the outer tube, the outer tube is sleeved on the outer wall of the outer tube, one end of the sleeve is connected to a water pipe, the inner tube, the outer tube, and the inside of the water pipe are interconnected, the inner tube is connected through the inside of the outer tube, and the other end of the inner tube extends out of the outside of the outer tube and forms a stepped structure. One end of the binding assembly is a ring-shaped binding structure, the ring-shaped binding structure of the binding assembly is sleeved on the outer wall of the stepped structure formed by the inner tube, and the outer wall of the tube is connected through the first positioning bolt, the bottom end of the first positioning bolt is attached to the outer wall of the outer tube.

2. The elastic band tightening device after anal fistula surgery according to claim 1, characterized in that: The binding assembly includes a guide block, a second slider, a second positioning bolt, a pull rope, and a knot sleeve. The guide block is fixed to the outer wall of the insert. The second slider is slidably connected inside the guide block. The second positioning bolt is connected through the second slider. One end of the second positioning bolt is attached to the outer wall of the insert. A pull rope is connected to one side of the second slider. One end of the pull rope passes through the outside of the guide block and is connected to a knot sleeve. The knot sleeve is set as a ring binding structure and is fitted onto the outer wall of the inner tube.

3. The elastic band tightening device after anal fistula surgery according to claim 2, characterized in that: The guide block has a first groove inside, and the second slider is slidably connected inside the first groove. The top and bottom surfaces of the first groove are both provided with second grooves. The top and bottom surfaces of the second slider are both fixed with limit blocks, which are slidably connected inside the second grooves.

4. The elastic band tightening device after anal fistula surgery according to claim 2, characterized in that: The outer wall of the outer tube is fixed with a guide tube, and the positioning ring has a through hole. There are two through holes mirrored about the vertical center line of the positioning ring. The pull rope passes through and connects the through hole and the inside of the guide tube. The inner diameter of the guide tube is smaller than the knot diameter of the knot sleeve.

5. The elastic band tightening device after anal fistula surgery according to claim 2, characterized in that: The shift assembly includes a collar, a second grip, a guide plate, and a locking plate. The collar is sleeved on the outer wall of the insert cylinder. The guide plate is fixed to the end face of the collar away from the positioning ring. The guide block is slidably connected inside the collar. The second grip is connected to one side of the collar. The locking plate is connected to the side wall of the second grip. The locking plate is inserted into the locking assembly. Multiple locking grooves are opened on one side of the locking plate. The locking assembly positions the locking plate by inserting it into the locking grooves.

6. The elastic band tightening device after anal fistula surgery according to claim 5, characterized in that: The guide plate has an arc-shaped structure. The center of the arc of the guide plate and the center of the insert are located on the same horizontal center line. There are two guide plates mirrored about the horizontal center line of the collar. One end of the insert is inserted between the concave surfaces of the arcs of the two guide plates. The guide block is slidably connected between the two guide plates.

7. The elastic band tightening device after anal fistula surgery according to claim 5, characterized in that: The inner guide assembly also includes a connecting plate and a third push block. The connecting plate is connected to the outer wall of the insert, and the third push block is connected to the side of the connecting plate away from the insert. The third push block is slidably sleeved on the outer wall of the locking plate.

8. The elastic band tightening device after anal fistula surgery according to claim 5, characterized in that: The locking assembly includes a first grip, a pin, a spring plate, a first slider, and a first push block. The first grip is fixed to the outer wall of the positioning ring. A pin is provided inside the first grip. One side of the pin is inserted into the locking groove. A spring plate is connected between the other side of the pin and the inner wall of the first grip. A first slider is connected to the side wall of the pin. A first push block is fixed to the side of the first slider away from the pin. The first push block slides against the outer wall of the first grip.

9. The elastic band tightening device after anal fistula surgery according to claim 1, characterized in that: The inner expansion assembly includes a fixing frame, a fixing plate, a guide rod, a spring, an airbag, a push plate, an air tube, and an air cushion. The fixing frame is fixed to the outer wall of the positioning ring. A fixing plate is connected to one side of the fixing frame. A guide rod is inserted into the inside of the fixing plate. A push plate is connected to one end of the guide rod. A spring is sleeved on the outer wall of the guide rod. One end of the spring is connected to the side wall of the fixing plate. An airbag is connected to the side wall of the fixing plate. One side of the push plate is fitted to the airbag. An air tube is connected through one side of the airbag. A positioning block is fixed to the outer wall of the outer tube. The air tube passes through and connects to the through hole and the interior of the positioning block. An air cushion is connected through the end of the air tube away from the airbag. The air cushion is sleeved on the outer wall of the outer tube.

10. The elastic band tightening device after anal fistula surgery according to claim 9, characterized in that: The inner guide assembly also includes a second push block, which is fixed to the outer wall of the insert, and one side of the second push block is attached to the side wall of the push plate.

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