Detachable manual thread cutting ligation tube of haemorrhoids ligation device
By designing a detachable, manually operated ligation tube for hemorrhoid ligation devices, the ligation ring can be easily pushed out, tightened, and cut, solving the problem of inconvenient operation of existing ligation devices and improving the convenience and stability of the ligation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING TAIYOU MEDICAL TECHNOLOGY CO LTD
- Filing Date
- 2025-01-04
- Publication Date
- 2026-04-10
AI Technical Summary
Existing hemorrhoid ligation devices suffer from problems such as time and effort consumption, insecure ligation, and inconvenience in cutting the ligation rings. In particular, the existing ligation gun barrel is inconvenient to operate when releasing the ligation rings.
A detachable manual cutting ligation tube for hemorrhoid ligation was designed, including an inner barrel, a push tube, a ligation ring, and a rotary cutting device. The ligation ring is pushed out by the push tube, tightened by the pull rod, and cut by the rotary cutting device, realizing convenient operation of ligation and cutting functions.
It improves the convenience and stability of the ligation process, simplifies the insertion and cutting of the ligation ring, and reduces the difficulty and time cost of operation.
Smart Images
Figure CN224099399U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to hemorrhoid treatment instrument technical field, especially, relate to a kind of detachable manual cutting line ligation tube of hemorrhoid ligation device. BACKGROUND
[0002] The most commonly used in hemorrhoid surgery is through ligation loop ligation in the root of internal hemorrhoids, using the elastic retraction force of ligation loop to block hemorrhoid blood supply, so that it atrophies, necrosis, and finally falls off to achieve the purpose of cure.
[0003] The current hospital hemorrhoid surgery is through artificial knotting of a elastic rubber band, and then ligation in hemorrhoid, which is very difficult to achieve without external force, time-consuming and labor-intensive, and prone to ligation risk.
[0004] Therefore, in recent years, some auxiliary ligation instruments have been invented, known as hemorrhoid suction ligation device or hemorrhoid ligation device, which works by absorbing hemorrhoid lesion tissue through negative pressure tube, and then ligation loop is ligation in lesion, and after a period of time, the lesion will naturally fall off.
[0005] However, the existing ligation loop will shoot the elastic rod together, which needs artificial cutting of ligation loop, which is very troublesome.
[0006] Therefore, the present inventor has applied a ligation gun quick-change barrel utility model patent, patent application number 2024200243869, which works by gun barrel to achieve the process of pushing out and ligation of ligation loop, but when releasing ligation loop, release rod needs to be pulled to a certain extent to release, sometimes it is not convenient to use. CONTENT OF UTILITY MODEL
[0007] The utility model aims to provide a kind of detachable manual cutting line ligation tube of hemorrhoid ligation device, which is more convenient to use with the matching gun head, the ligation loop is pushed out by push tube, and then the ligation loop is stably ligation in patient tissue by pulling rod backward, finally the ligation loop is cut off by rotary cutter, which is very convenient.
[0008] The utility model discloses a detachable manual cutting line ligation tube of hemorrhoid ligation device, including inner barrel, push pipe, ligation ring and rotary cutting device, the front end of ligation ring is a slip noose, and the rear end is a tight knot, and the inner barrel is arranged in the push pipe, and the front end of the inner barrel is out of the push pipe, and the slip noose of ligation ring is sleeved on the front end port of the inner barrel, and the rotary cutting device includes pull rod and push block, and the pull rod is arranged in the push block, and the push block is clamped on the push pipe, and the rear end of push block is push block slider, and the push block slider drives push block to slide along the push pipe forwards and backwards, and the front end of push block is fixed with a cylindrical rotary cutting knife, and the push pipe is equipped with a stopper, and the rotary cutting knife and the stopper are in position correspondence, and the middle section of ligation ring passes through the stopper and then passes through the inner hole of rotary cutting knife cylinder, and the tight knot of ligation ring is clamped in the pull rod clamping port of the rear end of pull rod.
[0009] As one of the preferred modes, a front end clamping port is arranged at the front end port edge of the push pipe, and the stopper is arranged behind the front end clamping port, and a blade fixing groove is arranged behind the stopper, and the rotary cutting knife is arranged in the blade fixing groove, and the ligation ring passes through the front end clamping port and then passes through the pipe opening of the rotary cutting knife.
[0010] As one of the preferred modes, a limiting clamp is arranged on the push pipe, and the limiting clamp is arranged behind the blade fixing groove, and the clamping port of the limiting clamp, the groove opening of the blade fixing groove and the stopper are arranged on the same straight line.
[0011] As one of the preferred modes, the limiting clamp includes a third limiting block, a second limiting clamping port and a first limiting clamping port, and the pull rod passes through the third limiting block, the second limiting clamping port and the first limiting clamping port in sequence from front to back.
[0012] As one of the preferred modes, the first limiting clamp is arranged at the clamping port of the rear end of the push pipe, and the first limiting clamp is a "port" shaped clamping port, and the second limiting clamp is arranged in front of the first limiting clamp, and the second limiting clamp is a "door" shaped clamping port.
[0013] As one of the preferred modes, the third limiting block is long strip shaped, and positioning convex points are arranged on the side surface of the third limiting block, and a long strip shaped observation groove is arranged on the push block, and positioning grooves corresponding to the positioning convex points are arranged on the inner wall of the observation groove.
[0014] As one of the preferred modes, a convex block is arranged on the inner barrel, and a recess corresponding to the convex block is arranged on the push pipe, and the inner barrel is clamped in the recess through the convex block to be clamped with the push pipe.
[0015] As one of the preferred modes, a elastic quick-release buckle is arranged at the rear end of the inner barrel, and the elastic quick-release buckle is out of the rear end pipe opening of the push pipe, and the elastic quick-release buckle is connected with the barrel of the external ligation device.
[0016] As one of the preferred ways, the inner gun barrel rear end is provided with a protruding connecting pipe mouth, and a rubber sealing ring is arranged on the connecting pipe mouth; the connecting pipe mouth is connected with an externally connected negative pressure pipe.
[0017] Compared with the prior art, the hemorrhoid ligation device has the advantages that the detachable manual wire cutting ligation tube can realize three functions by being combined with a matched ligation device gun body part:
[0018] 1. The ligation ring is pushed out by the push tube and is sleeved on the hemorrhoid lesion;
[0019] 2. The ligation ring is pulled tight by the pull rod, so that the hemorrhoid lesion can be pinched and will be necrotic and shed in the long run;
[0020] 3. The ligation ring is quickly cut off by the rotary cutter, and the ligation tube is more convenient and stable to use than the prior art. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 is one of the structure schematic diagrams of the manual wire cutting ligation tube.
[0022] Figure 2 is the second structure schematic diagram of the manual wire cutting ligation tube.
[0023] Figure 3 is the exploded structure schematic diagram of the manual wire cutting ligation tube.
[0024] Figure 4 is the structure schematic diagram of the rear end of the manual wire cutting ligation tube.
[0025] Figure 5 is the structure schematic diagram of the front end of the manual wire cutting ligation tube.
[0026] Figure 6 is Figure 2 the cross-sectional structure schematic diagram of the rotary cutter.
[0027] Figure 7 is Figure 2 the structure schematic diagram of the push block.
[0028] In the drawings: the ligation ring 1, the ring mouth 121, the tight knot 122, the inner gun barrel 2, the push tube 3, the pull rod 4, the pull rod wire clamping port 401, the push block 5, the push block sliding block 51, the positioning groove 52, the rotary cutter 6, the elastic quick-release buckle 111, the sealing ring 112, the protruding block 113, the first limiting clamping port 31, the second limiting clamping port 32, the third limiting block 33, the stop block 34, the front end wire clamping port 35, the positioning protruding point 36 (corresponding to the positioning groove 52), the recess 37 (corresponding to the protruding block 113). DETAILED DESCRIPTION
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] In the following text, "front" refers to the direction relative to the hemorrhoid lesion, and "back" refers to the direction of connection with the ligation device gun. These terms are used for ease of description and have no other meaning.
[0031] like Figures 1-7 As shown, a detachable manual cutting ligation tube for hemorrhoid ligation includes an inner barrel 2, a push tube 3, a ligation ring 1, and a rotary cutting device, which can be used in conjunction with a special gun body of the ligation device.
[0032] Among them: the ligating ring 1 is a commonly used ligating ring structure. As another method, the ligating ring can also adopt other ligating ring structures that can achieve tension.
[0033] Combined with appendix Figure 3 As shown, the front end of the loop is a slip knot 121, the rear end is a tightened knot 122, and the middle section has a certain length.
[0034] A protrusion 113 is provided on the inner barrel 2, and a groove 37 corresponding to the protrusion is provided on the push tube 3. The inner barrel is engaged with the push tube by the protrusion being locked in the groove, and the two play a role in cooperating and limiting fixation. However, the protrusion is relatively small, so when an external force is applied to the push tube, the push tube will disengage from the inner barrel and move forward.
[0035] A protruding connecting port 114 is provided at the rear end of the inner gun barrel 2, and a rubber sealing ring 112 is provided on the connecting port. Regardless of the type of connecting port, as long as the connecting port is connected to the negative pressure tube, the function of adsorbing the hemorrhoid lesion through negative pressure can be realized, and the negative pressure will draw the lesion tissue into the inner gun barrel.
[0036] Combined with appendix Figure 5 As can be seen, the inner barrel is placed in the push tube 3, and the front end of the inner barrel 2 extends out of the push tube 3, with the loop 121 of the ligating ring 1 fitting onto the front end. When the push tube moves forward, the ligating ring will be pushed forward by the push tube until it falls off the opening of the inner barrel and fits over the hemorrhoid lesion.
[0037] The rotary cutting device includes a pull rod 4 and a push block 5. The pull rod 4 is placed inside the push block 5, which is secured to the push tube 3. The rear end of the push block 5 is a push block slider 143, which drives the push block 5 to slide back and forth along the push tube 3. (See attached diagram.) Figure 6As shown, the front end of the push block is fixed with a cylindrical rotary cutter 6, and the rear of the block is provided with a cutter fixing groove, and the rotary cutter is located in the cutter fixing groove.
[0038] The push tube 3 is provided with a block 34, and a front end wire clamping port 35 is arranged at the front end of the push tube, and the block 34 is arranged behind the front end wire clamping port 35. The loop ligature passes through the front end wire clamping port 35, then passes through the block 34, and then is fixed on the pull rod after passing through the pipe port of the rotary cutter. The rotary cutter 6 and the block 34 are in a corresponding position, and the block plays a similar role to the cutting board of the rotary cutter.
[0039] The front end wire clamping port can temporarily clamp the loop ligature to prevent displacement. A limiting clamp is arranged on the push tube, and the limiting clamp is located behind the cutter fixing groove. The clamping port of the limiting clamp, the groove of the cutter fixing groove and the block are located on the same straight line. The pull rod 4 passes through the third limiting block 33, the second limiting clamping port 132 and the first limiting clamping port 31 in sequence from front to back. The first limiting clamp is located at the clamping port of the rear end of the push tube, and the first limiting clamp is a "port" shaped clamping port. The second limiting clamp is located in front of the first limiting clamp, and the second limiting clamp is a "door" shaped clamping port. The third limiting block 33 is a long strip, and a positioning protrusion 36 is arranged on the side surface. An observation groove is arranged on the push block 5, and a positioning groove 144 corresponding to the positioning protrusion 36 is arranged on the inner wall of the observation groove. The front end wire clamping port and the limiting block both play a role to ensure that the pull rod is located on the same straight line, so as to ensure that the wire of the loop ligature can be tightened along the fixed straight line track.
[0040] In this embodiment, the loop ligature is made of rubber material with certain elasticity. The loop ligature is actually formed by a long elastic rope. A live knot is formed at one end of the rope to form a loop as a live knot port, and a dead knot is formed at the other end to form a tightening knot. The purpose of this is to reduce the cost and make it very convenient to use. The end of the dead knot only needs to be pulled, and the live knot will reduce the size of the loop, and the object in the loop will be tightened.
[0041] In this embodiment, the inner barrel is connected to the negative pressure machine, and the inner barrel abuts against the hemorrhoid lesion. Then the negative pressure adsorbs the lesion, and the entire loop ligature tube is aligned with the lesion. Then the following steps are started.
[0042] First step: secure the lesion. After the loop ligature is pushed out by the push tube, it is sleeved on the hemorrhoid lesion. The tightening knot 122 at the rear end of the loop ligature is clamped in the pull rod wire clamping port 401 on the pull rod 4. The tightening knot is clamped on the front end of the pull rod. When the pull rod moves backward, the tightening knot can be pulled backward along the direction fixed by the limiting clamp. This can pull the live knot port in front of it tightly, so as to secure the lesion.
[0043] Second step: cutting the ligation ring, push the slider block can drive the rotary cutter forward, until the rotary cutter reaches the stop block, and the middle section of the ligation ring passes through the inner hole of the rotary cutter 6 cylinder, so when the ligation ring is in tension, the stop block plays a similar role to the cutting board, the cutting edge of the rotary cutter is a circle, when the rotary cutter contacts the stop block, the ligation ring can be cut off.
[0044] Third step: after the work is completed, release the negative pressure, the lesion tissue just sucked can be released from the pipe opening, complete the whole ligation work, the lesion after ligation falls off after a period of time.
[0045] In addition, the rear end of the inner barrel 2 is provided with an elastic quick-release buckle 111, which protrudes from the rear end of the push tube 3. The elastic quick-release buckle is used as a kind of quick connector, which is clamped on the ligation gun head, convenient for use and replacement.
[0046] When multiple tissues are ligated, the used ligation tube is pulled out through the elastic quick-release buckle, and a new ligation tube is installed for the next ligation work.
[0047] The above only describes the preferred embodiment of the present application, and does not limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A detachable manual cutting thread ligation tube for hemorrhoid ligator, comprising an inner barrel, a push tube and a ligation ring, the front end of the ligation ring is a slip knot ring port, and the rear end is a tight knot, the inner barrel is placed in the push tube, the front end of the inner barrel protrudes from the push tube, and the slip knot ring port of the ligation ring is sleeved on the front end port of the inner barrel, characterized in that: The rotary cutting device comprises a pull rod and a push block, the pull rod is arranged in the push block, the push block is clamped on the push tube, the rear end of the push block is a push block slider, the push block slider drives the push block to slide along the push tube, the front end of the push block is fixed with a cylindrical rotary cutting knife, the push tube is provided with a stop block, the rotary cutting knife and the stop block are in position correspondence, the middle section of the loop ligature passes through the rotary cutting knife cylindrical inner hole after passing through the stop block, and the loop ligature is clamped in the pull rod clamping port arranged at the front end port edge of the pull rod. 2. The detachable manual cutting ligature tube for hemorrhoid ligation according to claim 1, characterized in that: A front end clamping port is arranged at the front end port edge of the push tube, the stop block is arranged behind the front end clamping port, a blade fixing groove is arranged behind the stop block, the rotary cutting knife is arranged in the blade fixing groove, and the loop ligature passes through the front end clamping port, passes through the stop block and then passes through the rotary cutting knife tube.
3. The detachable manual cutting ligature tube for hemorrhoid ligation according to claim 2, characterized in that: A limiting clamp is arranged on the push tube, the limiting clamp is arranged behind the blade fixing groove, the clamping port of the limiting clamp, the groove of the blade fixing groove and the stop block are arranged on the same straight line.
4. The detachable manual cutting ligature tube for hemorrhoid ligation according to claim 3, characterized in that: The limiting clamp comprises a third limiting block, a second limiting clamping port and a first limiting clamping port, and the pull rod passes through the third limiting block, the second limiting clamping port and the first limiting clamping port from front to back.
5. The detachable manual cutting ligature tube for hemorrhoid ligation according to claim 4, characterized in that: The first limiting clamp is arranged at the clamping port of the rear end of the push tube, the first limiting clamp is a "port" shaped clamping port, the second limiting clamp is arranged in front of the first limiting clamp, and the second limiting clamp is a "door" shaped clamping port.
6. The detachable manual cutting ligature tube for hemorrhoid ligation according to claim 4, characterized in that: The third limiting block is long strip-shaped, the side surface of the third limiting block is provided with a positioning convex point, the push block is provided with a long strip-shaped observation groove, and the inner wall of the observation groove is provided with a positioning groove corresponding to the positioning convex point.
7. The detachable manual cutting ligature tube for hemorrhoid ligation according to claim 1, characterized in that: A convex block is arranged on the inner barrel, a concave groove corresponding to the convex block is arranged on the push tube, and the inner barrel is clamped in the concave groove through the convex block to be connected with the push tube.
8. The detachable manual cutting ligature tube for hemorrhoid ligation according to claim 1, characterized in that: A rear end of the inner barrel is provided with an elastic quick-release buckle, the elastic quick-release buckle is arranged at the rear end port of the push tube, and the elastic quick-release buckle is connected with the barrel of the external loop ligature device.
9. The detachable manual cutting ligature tube for hemorrhoid ligation according to claim 1, characterized in that: A convex connecting port is arranged at the rear end of the inner barrel, a rubber sealing ring is arranged on the connecting port, and the connecting port is connected with the external negative pressure pipe. A convex connecting port is arranged at the rear end of the inner barrel, a rubber sealing ring is arranged on the connecting port, and the connecting port is connected with the external negative pressure pipe.