Pushing tube of loop ligature device

Abstract

The push tube comprises a push tube body, a stop block, a limiting clamp and a blade fixing groove, the push tube body is of a cylindrical structure, a bayonet matched with an inner tube is formed in the bayonet connecting end, a wire clamping opening for clamping and fixing a loop ligature ring is formed in the push opening of the push tube, the stop block is located between the wire clamping opening and the blade fixing groove, and the limiting clamp is located between the stop block and the blade fixing groove. The limiting clamp is located between the blade fixing groove and the bayonet connecting end, and a bayonet of the limiting clamp, a notch of the blade fixing groove and the check block are located on the same straight line. The push tube of the loop ligature device can be used in cooperation with an inner tube and a blade of the loop ligature device, not only is simple in structure and firm in design, but also can stably fix an elastic thread of a loop ligature ring, can rapidly cut the elastic thread when being used in cooperation with the blade due to the structural characteristic, and is convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hemorrhoid treatment instrument technical field, especially, relate to a kind of sleeve ligation device push pipe. BACKGROUND

[0002] The most commonly used in hemorrhoid surgery is through sleeve ligation loop ligation in the root of internal hemorrhoids, using the elastic retraction force of sleeve ligation loop to block hemorrhoid blood supply, so that it atrophies, necrosis, and ultimately falls off to achieve the purpose of cure.

[0003] In the existing hemorrhoid treatment, the most advanced is sleeve ligation device, also called sleeve ligation gun, by containing an inner tube, an outer tube (push pipe) and a gun body. The working principle of sleeve ligation device is to use machine instead of existing manual sleeve ligation and cutting sleeve ligation loop elastic line process, the whole sleeve ligation device needs to realize two functions, one is to sleeve ligation loop to the hemorrhoid lesion, the other is to remove the excess part of sleeve ligation loop. There is still a lot of room for improvement in the existing sleeve ligation device push pipe, in order to make sleeve ligation device more convenient to use, it is urgent to make necessary improvement to its structure. SUMMARY

[0004] The purpose of the utility model is to provide a kind of sleeve ligation device push pipe, can cooperate with inner tube and blade use, simple structure, convenient to use, can completely solve the deficiency of the prior art.

[0005] The purpose of the utility model is realized by the following technical scheme: a kind of sleeve ligation device push pipe, including push pipe body, push pipe body is cylindrical structure, the rear end of push pipe body is bayonet connection end, the front end of push pipe body is push pipe push mouth, the bayonet on the bayonet connection end is equipped with the bayonet of cooperation with inner tube, the push pipe push mouth is equipped with the card line mouth of the sleeve ligation loop of carding, still include stop block, limit card and blade fixed groove, the stop block is located between card line mouth and blade fixed groove, limit card is located between blade fixed groove and bayonet connection end, the bayonet of limit card, the slot of blade fixed groove and stop block are located in same straight line.

[0006] As one of preferred modes, stop block is annular, blade fixed groove is composed of two groove edges, stop block is integrated with one groove edge of blade fixed groove.

[0007] As one of preferred modes, still include the limit passage of restriction sleeve ligation loop, limit line passage is quarter circular arc, limit line passage is around the periphery of stop block, the elastic line of sleeve ligation loop can pass between limit passage and stop block.

[0008] As one of preferred modes, one end of limit passage is integrated with the groove edge of another side of blade fixed groove.

[0009] As one of the preferred modes, the limiting card comprises a first limiting card, a second limiting card and a third limiting card, the first limiting card is located at the card mouth, the first limiting card is a "mouth" shaped card mouth, the second limiting card is located in front of the first limiting card, and the second limiting card is a "door" shaped card mouth, and the third limiting card is composed of two long strip-shaped protrusions.

[0010] As one of the preferred modes, a stop ring is arranged at the card mouth connecting end, and the stop ring is a ring-shaped protruding edge structure.

[0011] As one of the preferred modes, an installation component with long slot structures on two sides is arranged on the push tube body on the other side opposite to the first limiting card, and a clamping groove is arranged on the installation component.

[0012] As one of the preferred modes, the clamping groove is two, a locking block corresponding to the clamping groove is arranged on the inner tube, and the push tube body is clamped in the clamping groove through the locking block to be clamped and fixed with the inner tube.

[0013] Compared with the prior art, the beneficial effects of the push tube of the ligation device are that the push tube of the ligation device can be used in cooperation with the inner tube and the blade of the ligation device, is simple in structure, firm in design, can stably fix the elastic line of the ligation ring, and the structural characteristics can also cooperate with the blade to quickly realize the cutting of the elastic line, and is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is one of the structural schematic views of the utility model.

[0015] Figure 2 is the second structural schematic view of the utility model.

[0016] Figure 3 is the third structural schematic view of the utility model.

[0017] In the drawings, push tube body 1, stop ring 2, first limiting card 3, second limiting card 4, third limiting card 5, stop block 6, limiting line channel 7, clamping line mouth 8, clamping groove 9, blade fixing groove 10, card mouth connecting end 11, push tube push mouth 12, card mouth 13, installation component 14. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only 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 fall within the protection scope of the utility model.

[0019] In the embodiment, the so-called "front" is according to the use, the ligation device faces the hemorrhoid lesion, that is, the gun body of the ligation device is rear, the barrel is front, and the ligation ring push tube of the utility model is one of the indispensable components of the barrel, therefore, the direction of the ligation device gun body is "rear", and the direction close to the hemorrhoid lesion is "front", "front" and "rear" are only for convenience, and have no other meanings.

[0020] As Figure 1 , Figure 2 , Figure 3 As shown in the figure, a ligation device push tube, comprising a push tube body 1, a stop block 6, a limiting card, a limiting passage 7 for limiting the ligation ring and a blade fixing groove 10. The push tube body 1 is a cylindrical structure, the rear end of the push tube body 1 is a bayonet connection end 11, a bayonet 13 matched with the inner tube is arranged on the bayonet connection end 11, specifically, an installation component 14 with long slot structure on both sides is arranged on the push tube body 1 on the other side opposite to the first limiting card 3, and a clamping groove 9 is arranged on the installation component 14. The clamping groove 9 is two, a lock block corresponding to the clamping groove 9 is arranged on the inner tube, the push tube body 1 is clamped in the clamping groove 9 through the lock block and is clamped and fixed with the inner tube, the lock block is a very small protrusion, which plays a role in temporarily clamping the two, and once an external force is applied, because the inner tube is fixed with the gun body, the push tube moves forward under the pushing force.

[0021] In order to make the pushing more convenient, the area of the whole push tube port is increased, and the bayonet connection end 11 is provided with a stop ring 2, which is a circle of protruding edge structure. The function of the stop ring is to increase the area when contacting with the gun body of the ligation gun, a pushing mechanism is arranged on the gun body of the ligation gun, the stop ring is contacted through the pushing mechanism, and the whole push tube body 1 is driven to move forward.

[0022] The front end of the push tube body 1 is a push port 12, in use, most of the existing ligation rings are composed of a long elastic line, one end of which is tied into a live knot, and the other end is tied into a dead knot structure, the live knot is sleeved on the inner tube, the push tube of the utility model is the outer tube, which is sleeved on the inner tube, and the length of the inner tube is greater than that of the outer tube, therefore, the live knot of the ligation ring is located on the inner tube in front of the push tube, when the pushing mechanism pushes the stop ring, the whole push tube body can be pushed to move forward, so as to push the ligation ring down from the inner tube and wrap the hemorrhoid lesion.

[0023] The clamping line port 8 is arranged on the pushing tube pushing port 12, the stopper 6 is located between the clamping line port 8 and the blade fixing groove 10, the limiting clamp is located between the blade fixing groove 10 and the clamping port connecting end 11, the clamping port of the limiting clamp, the groove of the blade fixing groove 10 and the stopper 6 are located on the same straight line, so that after the tensioning device is installed, the tensioning device can be pulled tightly. Specifically, the stopper 6 is annular, the blade fixing groove is composed of two groove edges, and the stopper 6 is integrated with one of the groove edges of the blade fixing groove. The limiting line channel 7 is in the shape of a quarter of a circle, the limiting line channel 7 is arranged on the periphery of the stopper 6, and the limiting line channel 7 and the stopper 6 can pass the elastic line of the sleeve knot. One end of the limiting line channel 7 is integrated with the groove edge of the other side of the blade fixing groove 10. The dead knot of the sleeve knot is fixed on the tensioning device, the tensioning device is fixed through the limiting clamp, the elastic line between the dead knot and the live knot passes through the clamping line port, then passes through the limiting line channel, passes through the position of the blade fixing groove, and is finally fixed on the tensioning device, and a cutting blade is arranged on the blade fixing groove 10 in advance, when cutting is needed, the blade can cut the elastic line of the sleeve knot.

[0024] In order to more stably fix the tensioning device, the limiting clamp comprises a first limiting clamp 3, a second limiting clamp 4 and a third limiting clamp 5, the first limiting clamp 3 is located at the clamping port 13, the first limiting clamp 3 is a "port" shaped clamping port, the second limiting clamp 4 is located in front of the first limiting clamp 3, the second limiting clamp 4 is a "door" shaped clamping port, and the third limiting clamp 5 is composed of two long strip-shaped protrusions.

[0025] The blade is fixed through other parts, which is not the focus of the utility model, and will not be described again.

[0026] The above only describes preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A ligation push tube, comprising a push tube body, the push tube body being a cylindrical structure, a rear end of the push tube body being a bayonet connection end, a front end of the push tube body being a push tube push end, a bayonet on the bayonet connection end being configured to cooperate with an inner tube, and a wire hole configured to hold a ligation loop being provided on the push tube push end, characterized in that: The blocking block is located between the wire clamping port and the blade fixing groove, the limiting card is located between the blade fixing groove and the clamping port connecting end, and the clamping port of the limiting card, the groove of the blade fixing groove and the blocking block are located on the same straight line.

2. The ligator barrel of claim 1, wherein: The blocking block is annular, the blade fixing groove is composed of two groove edges, and the blocking block is integrated with one of the groove edges of the blade fixing groove.

3. The ligator barrel of claim 2, wherein: The limiting channel for limiting the ligation ring is further included, the limiting line channel is in the shape of a quarter of a circle, the limiting line channel is around the periphery of the blocking block, and the elastic line of the ligation ring can pass through between the limiting channel and the blocking block.

4. The ligator barrel of claim 3, wherein: One end of the limiting channel is integrated with the groove edge of the other side of the blade fixing groove.

5. The ligator barrel of claim 1, wherein: The limiting card includes a first limiting card, a second limiting card and a third limiting card, the first limiting card is located at the clamping port, the first limiting card is a "port" shaped clamping port, the second limiting card is located in front of the first limiting card, the second limiting card is a "door" shaped clamping port, and the third limiting card is composed of two long strip-shaped protrusions.

6. The ligator barrel of claim 1, wherein: A blocking ring is arranged at the clamping port connecting end, and the blocking ring is in the structure of a protruding edge strip.

7. The ligator barrel of claim 1, wherein: An installation component with long slot structures on both sides is arranged on the push tube body on the other side opposite to the first limiting card, and a clamping groove is arranged on the installation component.

8. The ligator plunger of claim 7, wherein: The clamping groove is two, a locking block corresponding to the clamping groove in position is arranged on the inner tube, and the push tube body is clamped in the clamping groove through the locking block to be clamped and fixed with the inner tube.

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