Multi-continuous-shooting thread-breakable ligation device gun barrel

Abstract

The utility model belongs to the field of medical instruments, and particularly relates to a multi-continuous-shooting thread-breakable ligation device gun barrel. The prior art is improved, a plurality of elastic ropes are arranged on the ligation device gun barrel capable of breaking threads, in order to cut off only one elastic rope at a time, the thread breaking plate is additionally arranged, on one hand, the surface of the thread breaking plate is matched with the cutting-off assembly to cut off the elastic ropes, and on the other hand, the surface of the thread breaking plate is matched with the cutting-off assembly to cut off the elastic ropes. According to the elastic rope separating device, a tensioned elastic rope can be separated from an untensioned elastic rope, the tensioned elastic rope can fall into the rope containing groove of the rope breaking plate, cutting-off can be conveniently conducted by the cutting-off assembly, the situation that a plurality of elastic ropes are cut off at a time is avoided, and normal use of equipment is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the field of medical instruments, and particularly relates to a wire-breakable ligature barrel for a hemorrhoid ligature and the hemorrhoid ligature. Background Art

[0002] Anorectal ligation staplers are medical devices that replace traditional manual suturing. Thanks to the development of modern science and technology and the improvement of manufacturing technology, clinically used staplers have the advantages of reliable quality, easy use, fast suturing speed, fewer side effects and surgical complications compared to traditional manual ligation technology. They also make it possible to remove tumors that were previously unresectable. Its main working principle is to use elastic rubber rings and other materials to sever or anastomose the diseased tissue, causing the diseased tissue to bleed and necrotize and finally fall off naturally. It can effectively treat various local lesions and prevent the spread of the diseased area. In order to improve the efficiency of ligation surgery and reduce patients' medical costs, the utility model inventor has developed and invented a variety of ligation structures for realizing automatic ligation operations. These products have strong applicability, good use effects, and good market feedback.

[0003] Last year, our company proposed a breakable ligature barrel, which can only perform single-shot operations and requires frequent installation of elastic ropes during use. This makes it more troublesome to use and prolongs the operation time. Summary of the invention

[0004] In view of the deficiencies in the prior art, the utility model improves the breakable wire ligation gun barrel, thereby installing multiple elastic ropes on the ligation gun barrel, reducing the number of times the elastic ropes are installed during surgery, making it more convenient for users to use, improving surgical efficiency, and shortening surgical time.

[0005] The technical solution of the utility model is as follows:

[0006] The gun rod of a multi-shot breakable ligature device comprises a rod member, the rear end of the rod member is connected to a connecting tube, the front end of the rod member is connected to a ligature tube, the rod member is provided with a negative pressure pipeline along the axial direction, the negative pressure pipeline is connected to the ligature tube and the connecting tube, a second pipeline is formed in the rod member above the negative pressure pipeline, a plurality of elastic ropes are arranged in the second pipeline, the front end of the elastic rope passes through the threading hole of the ligature tube and forms an elastic loop on the ligature tube, a wire outlet hole connected to the second pipeline is provided on the rod member near the connecting tube, the rear end of the elastic rope passes through the wire outlet hole and is connected to a tensioning part, and ... and the negative pressure pipeline is connected to the connecting tube. A cutting assembly is also provided for cutting the elastic rope after tightening. The ligating tube includes a front tube section, a transition section and a connecting section that cooperates with the rod member, and also includes a wire breaking plate. A connecting sleeve is provided at the lower end of the wire breaking plate, and the connecting sleeve is sleeved on the transition section. A wire accommodating groove is provided in the middle of the upper end surface of the wire breaking plate. Inclined surfaces are respectively provided on the upper end surfaces of the wire breaking plate on both sides of the wire accommodating groove. The inclined surfaces are V-shaped. At least one wire blocking plate is provided on the inclined surface. The wire blocking plate is a flexible member. The cutting assembly acts on the surface of the wire breaking plate below the wire accommodating groove.

[0007] Furthermore, two wire blocking plates are respectively provided on the inclined surface, and the two wire blocking plates are arranged in parallel.

[0008] Furthermore, a group of first connecting columns and a group of second connecting columns are respectively provided on the two side surfaces of the disconnect plate, a first connecting hole is provided on the surface of the front pipe section, the first connecting column is plugged into the first connecting hole, and a second connecting hole is provided on the end surface of the rod, the second connecting column is plugged into the second connecting hole.

[0009] Furthermore, it also includes a retaining frame, which includes a frame body, a retaining rod symmetrically arranged at the lower end of the frame body, a plurality of retaining grooves for retaining the tensioning part at the upper end of the frame body, and a plug-in groove is arranged on the surface of the rod, and the retaining rod is inserted into the matching plug-in groove.

[0010] Furthermore, the cutting assembly includes limit bars symmetrically arranged on the upper surface of the rod, a cutting groove is formed between the limit bars, a cutting hole is provided on the rod, the cutting hole is connected to the cutting groove, and also includes a cutting rod, the cutting rod is slidably fitted in the cutting groove, and the cutter is fixed at the end of the cutting rod.

[0011] Furthermore, the upper end surface of the limit stop bar is provided with a plurality of connecting columns, and also includes a limit cover plate, the limit cover plate is provided with connecting holes, the connecting holes of the limit cover plate cooperate with the connecting columns, and the limit cover plate is used to seal the upper end of the cutting slide.

[0012] Furthermore, mounting grooves connected to the cutting slide grooves are provided on the opposite surfaces of the limit stop strips, and reset blocks are extended on both sides of the cutting rod. The reset blocks are fitted in the mounting grooves, and a reset elastic body is also provided in the mounting groove, and the reset elastic body acts on the reset block.

[0013] Furthermore, it also includes a locking buckle, a locking through hole is provided on the cutting rod located outside the limit stop bar, and a locking blind hole is provided on the surface of the corresponding rod. The locking buckle includes a buckle plate, and a U-shaped buckle piece is provided at the lower end of the buckle plate. A locking rod is provided in the middle of the U-shaped buckle piece, and the locking rod is inserted and matched in the locking through hole and the locking blind hole.

[0014] In summary, the utility model has the following beneficial effects:

[0015] 1. The utility model improves the prior art. A plurality of elastic ropes are installed on the gun barrel of the wire-breakable ligation device. In order to cut only one elastic rope at a time, a wire-breaking plate is added. On the one hand, the surface of the wire-breaking plate cooperates with the cutting component to cut the elastic rope. On the other hand, the tightened elastic rope can be separated from the loose elastic rope. The tightened elastic rope will fall into the wire-containing groove of the wire-breaking plate, which is convenient for the cutting component to cut, avoiding the situation of cutting multiple elastic ropes at a time, and ensuring the normal use of the equipment.

[0016] 2. Furthermore, the utility model uses a wire baffle to separate multiple elastic cords. When users use them in sequence, there will be no interference between the elastic cords. At the same time, the wire baffle also prevents multiple elastic cords from entering the wire groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0018] Figure 2 It is a top view schematic diagram of the utility model;

[0019] Figure 3 for Figure 2 A schematic cross-sectional view of AA;

[0020] Figure 4 A three-dimensional schematic diagram of the utility model with the limiting cover plate removed;

[0021] Figure 5 It is a three-dimensional schematic diagram of the utility model without the limiting cover plate, the connecting pipe and the retaining frame;

[0022] Figure 6 For Figure 5 A three-dimensional schematic diagram of the utility model with the cutting component removed;

[0023] Figure 7 It is a three-dimensional schematic diagram of the ligation tube and the wire breaking plate;

[0024] Figure 8 It is a three-dimensional schematic diagram of a sleeve hanging pipe;

[0025] Fig. 9 is a three-dimensional schematic diagram of a locking buckle;

[0026] In the figure, 1 is a rod, 10 is a negative pressure pipeline, 100 is a second connecting hole, 101 is a plug slot, 102 is a limit stop bar, 1020 is a connecting column, 1021 is a mounting slot, 1022 is a reset elastic body, 103 is a cutting slide slot, 104 is a cutter hole, 11 is a second pipeline, 12 is a wire outlet hole,

[0027] 2 is the connecting pipe,

[0028] 3 is a ligation tube, 30 is a front tube section, 300 is a first connecting hole, 31 is a transition section, 32 is a connecting section,

[0029] 4 is an elastic rope, 40 is a tensioning part,

[0030] 5 is a cutting assembly, 50 is a cutting rod, 51 is a cutting knife, 52 is a limit cover plate, 501 is a reset block,

[0031] 6 is a wire breaking plate, 60 is a connecting sleeve, 61 is a wire accommodating groove, 62 is an inclined surface, 63 is a wire blocking plate, 64 is a first connecting column, 65 is a second connecting column,

[0032] 7 is a retaining frame, 70 is a frame body, 71 is a retaining rod, 72 is a retaining groove,

[0033] 8 is a locking buckle, 502 is a locking through hole, 103 is a locking blind hole, 80 is a buckle plate, 801 is a U-shaped buckle piece, and 802 is a locking rod. DETAILED DESCRIPTION

[0034] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0035] It should be noted that when an element is referred to as being "disposed on" or "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is referred to as being "fixed on" another element, or "fixedly connected" to another element, they may be fixed in a detachable manner or in a non-detachable manner. When an element is considered to be "connected" or "rotatably connected" to another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right", "upper", "lower" and similar expressions used are for illustrative purposes only and do not represent the only implementation method.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to restrict the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0037] The terms “first”, “second”, “third” and the like in the present invention do not represent specific quantities and sequences, but are merely used to distinguish names.

[0038] See also Figures 1 to 9As shown, the multiple-shot breakable ligation gun rod comprises a rod 1, the rear end of the rod is connected to a connecting tube 2, the front end of the rod 1 is connected to a ligation tube 3, the rod 1 is provided with a negative pressure pipeline 10 along the axial direction, the negative pressure pipeline 10 is connected with the ligation tube 3 and the connecting tube 2, during use, negative pressure is formed in the ligation tube through the negative pressure pipeline, the hemorrhoid assembly to be removed is sucked into the ligation tube, a second pipeline 11 is formed in the rod 1 above the negative pressure pipeline 10, and a plurality of elastic ropes are connected to the ligation tube. 4 is arranged in the second pipeline 11, the front end of the elastic rope 4 passes through the threading hole of the ligation tube and forms an elastic loop on the ligation tube, and the rod 1 close to the connecting tube is provided with a wire outlet hole 12 connected to the second pipeline, the rear end of the elastic rope 4 passes through the wire outlet hole and is connected to the tensioning part 40, and the rod 1 is also provided with a cutting component 5 for cutting the tightened elastic rope, the ligation tube 3 includes a front pipe section 30, a transition section 31 and a connecting section 32 matched with the rod, and also includes A wire breaking plate 6, a connecting sleeve 60 is provided at the lower end of the wire breaking plate 6, and the connecting sleeve 60 is sleeved on the transition section 31. A wire accommodating groove 61 is provided in the middle of the upper end surface of the wire breaking plate 6, and inclined surfaces 62 are respectively provided on the upper end surfaces of the wire breaking plate on both sides of the wire accommodating groove. The inclined surfaces are V-shaped, and the wire accommodating groove is located at the lowest point of the upper end surface of the wire breaking plate. At least one wire blocking plate 63 is provided on the inclined surface 62. In this embodiment, two wire blocking plates are provided on the inclined surface, and only one is shown in the figure. The wire blocking plate, specifically, has an insertion hole on the inclined surface, the wire blocking plate is inserted and fitted in the insertion hole, the wire blocking plate 63 is a flexible part, the cutting assembly 5 acts on the surface of the wire breaking plate below the wire accommodating groove, the wire blocking plate is designed with flexible materials, when the elastic rope is not subjected to force, the wire blocking plate is stuck on the inclined surface of the wire breaking plate, when the elastic rope is subjected to force, the elastic rope will bend the wire blocking plate, and the elastic rope will slide along the inclined surface into the wire accommodating groove, thereby realizing the alignment of the elastic rope and the cutting assembly.

[0039] The utility model improves the gun barrel of the ligator with breakable wires. The gun barrel of the ligator with the utility model can accommodate multiple elastic ropes, and further separate and position each elastic rope through a breaking plate, which is convenient for using and cutting the elastic ropes, and also overcomes the problem of inconvenience in using a single elastic rope in the prior art.

[0040] Two wire baffles 63 are respectively provided on the inclined surface 62, and the two wire baffles are arranged in parallel. Specifically, the utility model is provided with 4 spacing areas, each of which is used to hold an elastic rope to avoid related interference of the elastic rope.

[0041] A group of first connecting columns 64 and a group of second connecting columns 65 are respectively provided on the two side surfaces of the disconnecting plate 6. The surface of the front pipe section 30 is provided with a first connecting hole 300, and the first connecting column 64 is plugged into the first connecting hole 300. The end surface of the rod 1 is provided with a second connecting hole 100, and the second connecting column 65 is plugged into the second connecting hole. Here, the disconnecting plate is supported by the first connecting column and the second connecting column to improve its own structural strength and meet the strength requirements of the disconnecting component.

[0042] It also includes a retaining frame 7, which includes a frame body 70, and a retaining rod 71 is symmetrically provided at the lower end of the frame body. The upper end of the frame body 70 is provided with a plurality of retaining grooves 72 for retaining the tensioning part. The surface of the rod 1 is provided with a plug-in groove 101, and the retaining rod is inserted into the matching plug-in groove. The retaining frame is arranged at the tail of the rod to support and position the tensioning part of multiple elastic ropes.

[0043] The cutting assembly 5 includes limit bars 102 symmetrically arranged on the upper surface of the rod 1, and a cutting groove 103 is formed between the limit bars 102. The rod 1 is provided with a cutting knife hole 104, which is connected to the cutting groove 103, and also includes a cutting knife rod 50. The cutting knife rod 50 is slidably fitted in the cutting groove, and the cutter 51 is fixed at the end of the cutting knife rod. The cutting knife rod extends to the connecting pipe. When the ligation device gun rod is connected to the ligation device gun body, the cutting firing mechanism in the ligation device gun body can be used to move the cutting knife rod forward to cut.

[0044] The upper end surface of the limit stop bar 102 is provided with a plurality of connecting columns 1020, and also includes a limit cover plate 52, on which connecting holes are provided, and the connecting holes of the limit cover plate cooperate with the connecting columns, and the limit cover plate is used to seal the upper end of the cutting chute. Here, the cutting chute is sealed by the limit cover plate, the cutting rod is limited in the vertical direction, and the cutting rod is limited in all directions to prevent the cutting rod from bending when subjected to force.

[0045] The opposite surfaces of the limit stop bar 102 are provided with mounting grooves 1021 connected to the cutting slide groove. Reset blocks 501 are extended on both sides of the cutting rod 50. The reset blocks 501 are fitted in the mounting grooves 1021, and a reset elastic body 1022 is also provided in the mounting grooves 1021. The reset elastic body 1022 acts on the reset block. During use, the cutting rod moves forward, thereby driving the reset block to squeeze the reset elastic body. When the cutting is completed, the thrust of the cutting rod is released, and the reset elastic body is released to drive the cutting rod to reset, thereby realizing automatic reset of the cutting rod and meeting the needs of subsequent multiple cutting uses. Furthermore, the reset elastic body is a reset spring or a reset tendon body.

[0046] It also includes a locking buckle 8, a locking through hole 502 is provided on the cutting rod 50 located on the outside of the limit stop bar, and a locking blind hole 103 is provided on the surface of the corresponding rod 1. The locking buckle 8 includes a buckle plate 80, and a U-shaped buckle piece 801 is provided at the lower end of the buckle plate 80. A locking rod 802 is provided in the middle of the U-shaped buckle piece. The locking rod is inserted and matched in the locking through hole and the locking blind hole. The locking buckle is used to lock the cutting rod to avoid the firing of the cutting assembly in a non-working state.

[0047] In summary, the utility model has the following beneficial effects:

[0048] 1. The utility model improves the prior art. A plurality of elastic ropes are installed on the gun barrel of the wire-breakable ligation device. In order to cut only one elastic rope at a time, a wire-breaking plate is added. On the one hand, the surface of the wire-breaking plate cooperates with the cutting component to cut the elastic rope. On the other hand, the tightened elastic rope can be separated from the loose elastic rope. The tightened elastic rope will fall into the wire-containing groove of the wire-breaking plate, which is convenient for the cutting component to cut, avoiding the situation of cutting multiple elastic ropes at a time, and ensuring the normal use of the equipment.

[0049] 2. Furthermore, the utility model uses a wire baffle to separate multiple elastic cords. When users use them in sequence, there will be no interference between the elastic cords. At the same time, the wire baffle also prevents multiple elastic cords from entering the wire groove.

[0050] Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Claims

1. A multi-shot breakable ligature gun rod, comprising a rod, a connecting tube connected to the rear end of the rod, a ligature tube connected to the front end of the rod, a negative pressure pipeline provided along the axial direction of the rod, the negative pressure pipeline is connected to the ligature tube and the connecting tube, a second pipeline is formed in the rod above the negative pressure pipeline, a plurality of elastic ropes are arranged in the second pipeline, the front end of the elastic rope passes through the threading hole of the ligature tube and forms an elastic loop on the ligature tube, a wire outlet hole connected to the second pipeline is provided on the rod near the connecting tube, the rear end of the elastic rope passes through the wire outlet hole and is connected to a tensioning part, and a cutting assembly for cutting the tightened elastic rope is also provided on the rod, characterized in that: The ligation tube includes a front tube section, a transition section and a connecting section that cooperates with the rod, and also includes a wire breaking plate. A connecting sleeve is provided at the lower end of the wire breaking plate, and the connecting sleeve is sleeved on the transition section. A wire accommodating groove is provided in the middle of the upper end surface of the wire breaking plate. Inclined surfaces are respectively provided on the upper end surfaces of the wire breaking plate on both sides of the wire accommodating groove. The inclined surfaces are V-shaped. At least one wire blocking plate is provided on the inclined surface. The wire blocking plate is a flexible component. The cutting assembly acts on the surface of the wire breaking plate below the wire accommodating groove.

2. The multiple-shot breakable wire ligation gun barrel according to claim 1, characterized in that: Two wire blocking plates are respectively arranged on the inclined surfaces, and the two wire blocking plates are arranged in parallel.

3. The multiple-shot breakable wire ligation device gun barrel according to claim 1, characterized in that: A group of first connecting columns and a group of second connecting columns are respectively provided on the two side surfaces of the disconnecting plate, a first connecting hole is provided on the surface of the front pipe section, the first connecting column is plugged into the first connecting hole, and a second connecting hole is provided on the end surface of the rod, the second connecting column is plugged into the second connecting hole.

4. The multiple-shot breakable wire ligation device gun barrel according to claim 1, characterized in that: It also includes a retaining frame, which includes a frame body, a retaining rod symmetrically arranged at the lower end of the frame body, a plurality of retaining grooves for retaining the tensioning part at the upper end of the frame body, and a plug-in groove is arranged on the surface of the rod, and the retaining rod is inserted into the matching plug-in groove.

5. The multiple-shot breakable wire ligation device gun barrel according to claim 1, characterized in that: The cutting assembly includes limit bars symmetrically arranged on the upper surface of the rod, a cutting slot is formed between the limit bars, a cutting hole is provided on the rod, the cutting hole is connected to the cutting slot, and also includes a cutting rod, the cutting rod is slidably fitted in the cutting slot, and the cutter is fixed at the end of the cutting rod.

6. The multiple-shot breakable wire ligation device gun barrel according to claim 5, characterized in that: The upper end surface of the limit stop bar is provided with a plurality of connecting columns, and also includes a limit cover plate, the limit cover plate is provided with connecting holes, the connecting holes of the limit cover plate cooperate with the connecting columns, and the limit cover plate is used to seal the upper end of the cutting slide.

7. The multiple-shot breakable wire ligation device gun barrel according to claim 5, characterized in that: The opposite surfaces of the limit stop strip are provided with mounting grooves connected to the cutting slide groove, and the two sides of the cutter rod are extended with reset blocks, which are fitted in the mounting grooves, and a reset elastic body is also provided in the mounting groove, and the reset elastic body acts on the reset block.

8. The multiple-shot breakable wire ligation device gun barrel according to claim 5, characterized in that: It also includes a locking buckle, a locking through hole is provided on the cutting rod located outside the limit stop strip, and a locking blind hole is provided on the surface of the corresponding rod. The locking buckle includes a buckle plate, a U-shaped buckle piece is provided at the lower end of the buckle plate, and a locking rod is provided in the middle of the U-shaped buckle piece. The locking rod is inserted and matched in the locking through hole and the locking blind hole.

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