CN111317547A - Elastic thread anorectal ligation device - Google Patents
Elastic thread anorectal ligation device Download PDFInfo
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- CN111317547A CN111317547A CN201811536244.6A CN201811536244A CN111317547A CN 111317547 A CN111317547 A CN 111317547A CN 201811536244 A CN201811536244 A CN 201811536244A CN 111317547 A CN111317547 A CN 111317547A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3205—Excision instruments
- A61B17/32056—Surgical snare instruments
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12009—Implements for ligaturing other than by clamps or clips, e.g. using a loop with a slip knot
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12009—Implements for ligaturing other than by clamps or clips, e.g. using a loop with a slip knot
- A61B2017/12018—Elastic band ligators
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Abstract
The invention discloses an elastic thread anorectal ligation device which comprises an inner sleeve with a vacuum pipeline, an outer sleeve and at least one group of thread pushing pipe assemblies, wherein the front end of the inner sleeve is fixedly provided with an inner transmitting sleeve communicated with the vacuum pipeline to suck pathological change tissues, and the periphery of the inner transmitting sleeve is provided with at least one accommodating groove which is distributed along the axial direction to accommodate an elastic coil; the outer sleeve is sleeved on the periphery of the inner sleeve and is abutted against a wrench which is rotatably arranged on the shell so as to move relative to the inner sleeve under the action of the wrench; the front end of the outer sleeve is fixedly provided with an outer transmitting sleeve which is sleeved on the periphery of the inner transmitting sleeve to push all the elastic coils to move forwards towards the direction close to the pathological change tissue until the elastic coils in the containing grooves close to the pathological change tissue are sleeved on the sucked pathological change tissue; the wire pushing tube component is detachably and fixedly arranged on the periphery of the outer sleeve, is correspondingly connected with the elastic coils sleeved in the accommodating grooves and is used for drawing the corresponding elastic coils after the elastic coils are sleeved on the pathological change tissues so as to tie up the pathological change tissues, and a wrench is only needed to be pulled during an operation, so that the operation is more convenient.
Description
Technical Field
The invention relates to anorectal medical equipment, in particular to an elastic thread anorectal ligation device.
Background
The anorectal ligation is a common surgical operation for treating hemorrhoids by utilizing an anorectal ligation device, is more common in application, and is particularly necessary to be naturally improved.
The anorectal ligation device has the working principle that the hemorrhoid tissues are sucked into a gun tube by utilizing vacuum negative pressure, then a specially-made rubber ring or elastic thread ring is sleeved and tied on the base part of the hemorrhoid mucosa, the blood supply of the hemorrhoid is blocked or the venous backflow is reduced by utilizing the elastic retraction force of the ligation ring, the congestion and hypertrophy of the hemorrhoid and the blood flow stasis are reduced, the ischemia, atrophy and ligation tissues are gradually fallen off, and the wound tissues are convenient to heal.
The anorectal ligation device is divided into a rubber ring anorectal ligation device and an elastic wire anorectal ligation device according to the material of a ligation coil. Because the rubber ring is usually made of materials such as natural rubber, latex or silica gel, the rubber ring is easy to slip in a short period after operation, and the treatment effect is influenced, so that the elastic thread anorectal ligation device is widely applied. The existing elastic thread anorectal ligation device is of a single-hair type and a continuous-hair type, the single-hair anorectal ligation device can only release one elastic coil each time, the elastic coil needs to be frequently replaced when the anorectal ligation device is used, and the application of the continuous-hair anorectal ligation device is promoted to be wider.
However, the conventional elastic thread anorectal ligation device works on the principle that after the barrel sucks the hemorrhoids, the winding wheel is rotated for one circle, then the pipeline release wheel is rotated to a proper angle, an elastic thread coil fixed on the traction thread is ejected, and then the elastic thread coil is pulled until the hemorrhoids are tightly tied. During the whole operation, the reel and the pipeline releasing wheel need to be frequently and accurately rotated, so that the actions which need to be continuously executed are more, the operation time is long, and the operation is very inconvenient.
Disclosure of Invention
In view of this, the invention aims to provide an elastic thread anorectal ligation device which is convenient to operate.
The specific scheme is as follows:
the invention provides an elastic thread anorectal ligation device, which comprises:
an inner sleeve having a vacuum conduit; the front end of the inner sleeve is fixedly provided with an inner transmitting sleeve which is communicated with the vacuum pipeline to suck the lesion tissue, and the periphery of the inner transmitting sleeve is provided with at least one accommodating groove which is distributed along the axial direction to accommodate the elastic coils one by one;
the outer sleeve is sleeved on the periphery of the inner sleeve and abuts against a wrench which is rotatably arranged on the shell so as to move relative to the inner sleeve under the action of the wrench, and the front end of the outer sleeve is fixedly provided with an outer transmitting sleeve which is sleeved on the periphery of the inner transmitting sleeve so as to push all the elastic coils to move forwards in the direction close to the pathological change tissue until the elastic coils in the accommodating grooves close to the pathological change tissue are sleeved on the sucked pathological change tissue;
at least one group of wire pushing tube components which are detachably and fixedly arranged on the periphery of the outer sleeve, are correspondingly connected with the elastic coils sleeved in the accommodating grooves and are used for gathering the corresponding elastic coils after the elastic coils are sleeved on the pathological change tissues so as to bundle the pathological change tissues.
Preferably, the periphery of interior transmission cover is equipped with at least round and distributes in order to form at least one along the axial stagger the stop line ring gear and the plurality of accomodating the groove are radial distribution and extend in order to run through perpendicularly all along the axial the direction spout of stop line ring gear, outer transmission cover lean on to the one end of interior transmission cover be equipped with a plurality of respectively with a plurality of the direction spout corresponds complex direction slider, every the direction slider be equipped with the stop line ring gear the number of turns is the same and along the axial distribution in order to pass elastic coil from place accomodate the apical line tooth that the groove was deviate from.
Preferably, each thread blocking gear ring comprises a thread blocking end face and a thread blocking conical face, the thread blocking end face is perpendicular to the axial direction and is used for blocking the elastic coil from being separated from the accommodating groove, and the large-diameter end of the thread blocking conical face is fixedly connected with one side, close to the inner sleeve, of the thread blocking end face so as to guide the elastic coil to move when the elastic coil is jacked at the crest of the top thread; the top thread tooth comprises a top thread end face and a top thread conical face, wherein the top thread end face is perpendicular to the axial direction and used for jacking the elastic coil in the accommodating groove to slide off from the top thread conical face, and the top thread conical face is fixedly connected with one end, close to the outer sleeve, of the top thread end face.
Preferably, the device further comprises at least one wire pushing pipe support fixedly arranged at the top of the outer sleeve and used for supporting the wire pushing pipe assembly, and the wire pushing pipe support is provided with at least one clamping groove used for clamping the corresponding wire pushing pipe assembly.
Preferably, an anti-rotation assembly for limiting rotation of the inner sleeve relative to the outer sleeve is arranged between the inner sleeve and the outer sleeve.
Preferably, the method further comprises the following steps:
the vacuum pipe sleeve is communicated with the central cavity and is arranged in the shell, and the central cavity is detachably connected with one end, far away from the inner transmitting sleeve, of the inner sleeve;
the pushing pipe sleeve is abutted against the wrench, fixed at the front end of the shell, sleeved on the periphery of the vacuum pipe sleeve and detachably connected with one end of the outer sleeve, far away from the outer emission sleeve; when the inner sleeve is connected with the vacuum sleeve, the propelling sleeve is simultaneously connected with the outer sleeve.
Preferably, one end of the central cavity, which is far away from the inner sleeve, is connected with a vacuum pump through a main vacuum tube, the main vacuum tube comprises at least two sections of inner vacuum tubes installed in the shell, and the two adjacent sections of inner vacuum tubes are connected through an inner shell tube joint fixed in the shell.
Preferably, the main vacuum tube further comprises an outer vacuum tube installed outside the housing, and the inner vacuum tube is communicated with the outer vacuum tube through a vacuum tube joint penetrating through the housing.
Preferably, one end of the pushing sleeve close to the wrench is provided with an abutting flange; the inside wall of casing is equipped with annular butt piece, still includes:
the rotating pin is sleeved on the shell and used for supporting the wrench to rotate, and the rotating pin is provided with a first force arm and a second force arm which are respectively abutted against the inner side wall of the shell and the wrench, and a reset torsion spring used for assisting the wrench to reset;
the elastic element is sleeved on the pushing pipe sleeve, and two ends of the elastic element are respectively abutted against the abutting flange and the annular abutting block so as to drive the pushing pipe sleeve and the outer sleeve to automatically reset when the wrench resets.
Preferably, the outer sleeve is provided with a stop assembly which is arranged between the inner sleeve and the outer sleeve, limits the moving distance of the outer sleeve relative to the inner sleeve to move along the resetting direction and prevents the inner sleeve from being separated from the outer sleeve when the outer sleeve is connected with the propelling sleeve.
Compared with the background technology, the elastic thread anorectal loop ligature device provided by the invention comprises the inner sleeve and the outer sleeve, wherein the inner transmitting sleeve is fixedly arranged at the front end of the inner sleeve, the accommodating groove is fixedly arranged on the periphery of the inner transmitting sleeve, the outer transmitting sleeve is fixedly arranged at the front end of the outer sleeve, and the detachable thread pushing pipe assembly is arranged on the periphery of the outer sleeve.
When in operation, firstly, the negative pressure is utilized to suck the pathological tissue through the vacuum pipeline of the inner sleeve; then the wrench is shifted, the wrench pushes the outer sleeve to move towards the direction close to the pathological change tissue relative to the inner sleeve, the outer sleeve drives the outer transmitting sleeve to move, the outer transmitting sleeve jacks up the elastic coil in the accommodating groove to move forwards, and the elastic coil in the accommodating groove close to the pathological change tissue is sleeved on the sucked pathological change tissue; the outer sleeve simultaneously drives the wire pushing pipe assembly to move forwards along with the corresponding elastic coil; then, the wire pushing pipe assembly is disassembled, and the drawing elastic coil is fixedly arranged at one end of the wire pushing pipe assembly to draw the elastic coil in, so that the elastic coil tightens the pathological change tissue. And because the containing groove contains at least one, naturally, the elastic coil that can establish in the cover also contains one correspondingly, just can once only establish at least one elastic coil in the cover by repeating above-mentioned action, realize the running fire.
Therefore, in the operation process, the wrench is only required to be shifted for multiple times to sleeve at least one elastic coil, the reel and the pipeline release wheel do not need to be frequently rotated, the operation process is simple and convenient, and the operation difficulty is small, so that the elastic line anorectal ligation device provided by the invention is convenient to operate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a block diagram of an elastic thread anorectal ligation device according to an embodiment of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a cross-sectional view of FIG. 2;
FIG. 4 is an enlarged view of a portion of FIG. 3;
FIG. 5 is a partial enlarged view of B in FIG. 3;
FIG. 6 is an assembled view of the inner sleeve, outer sleeve, inner transmitting sleeve, outer transmitting sleeve and push wire tube assembly of FIG. 1;
FIG. 7 is an assembled view of the inner sleeve, outer sleeve and push wire tube assembly of FIG. 1;
FIG. 8 is an assembled structure view of the inner and outer sleeves of FIG. 1;
FIG. 9 is a block diagram of the inner transmitting sleeve of FIG. 1;
FIG. 10 is a block diagram of the outer transmitting sleeve of FIG. 1;
FIG. 11 is an assembled block diagram of the housing and its associated components of FIG. 1;
FIG. 12 is another view of FIG. 11;
FIG. 13 is a cross-sectional view of FIG. 12;
FIG. 14 is a block diagram of the pusher sleeve of FIG. 1;
FIG. 15 is a block diagram of the vacuum tube sleeve of FIG. 1;
fig. 16 is a block diagram of the push wire tube assembly of fig. 1.
The reference numbers are as follows:
the device comprises an inner sleeve 1, an outer sleeve 2, an inner transmitting sleeve 3, a wrench 4, an outer transmitting sleeve 5, a push wire pipe assembly 6, a push wire pipe bracket 7, an anti-rotation assembly 8, a vacuum pipe sleeve 9, a shell 10, a sealing element 11, a blocking block 12, an inner vacuum pipe 13, a vacuum pipe joint 14, a push pipe sleeve 15, an elastic element 16, a stopping assembly 17, a vacuum control switch 18 and an inner shell pipe joint 19;
a vacuum pipeline 1-1 and an inner clamping lug 1-2;
the outer clamping bulge 2-1;
the gear ring 3-1 of the gear line, the guide chute 3-2 and the accommodating groove 3-3;
the thread blocking end face 3-11, the thread blocking conical surface 3-12, the first thread blocking gear ring 3-13, the second thread blocking gear ring 3-14 and the third thread blocking gear ring 3-15;
a first receiving groove 3-31, a second receiving groove 3-32, and a third receiving groove 3-33;
a guide slide block 5-1 and a top line tooth 5-2;
a top line end face 5-21, a top line conical surface 5-22, a first top line tooth 5-23, a second top line tooth 5-24 and a third top line tooth 5-25;
the lead wire sleeve 6-1, the front end cap 6-2, the rear end cap 6-3 and the guide sleeve 6-4;
a clamping groove 7-1 and a connecting key 7-2;
a clamping sliding chute 9-1 and a clamping connecting groove 9-2;
an annular abutment block 10-1;
a connecting sleeve 15-1 and a propelling sleeve 15-2;
clamping guide grooves 15-11 and clamping groove connecting grooves 15-12;
abutting the flanges 15-21.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific examples.
Referring to fig. 1 to 16, fig. 1 is a structural diagram of an elastic thread anorectal ligation device according to an embodiment of the present invention; FIG. 2 is a front view of FIG. 1; FIG. 3 is a cross-sectional view of FIG. 2; FIG. 4 is an enlarged view of a portion of FIG. 3; FIG. 5 is a partial enlarged view of B in FIG. 3; FIG. 6 is an assembled view of the inner sleeve, outer sleeve, inner transmitting sleeve, outer transmitting sleeve and push wire tube assembly of FIG. 1; FIG. 7 is an assembled view of the inner sleeve, outer sleeve and push wire tube assembly of FIG. 1; FIG. 8 is an assembled structure view of the inner and outer sleeves of FIG. 1; FIG. 9 is a block diagram of the inner transmitting sleeve of FIG. 1; FIG. 10 is a block diagram of the outer transmitting sleeve of FIG. 1; FIG. 11 is an assembled block diagram of the housing and its associated components of FIG. 1; FIG. 12 is another view of FIG. 11; FIG. 13 is a cross-sectional view of FIG. 12; FIG. 14 is a block diagram of the pusher sleeve of FIG. 1; FIG. 15 is a block diagram of the vacuum tube sleeve of FIG. 1; fig. 16 is a block diagram of the push wire tube assembly of fig. 1.
The embodiment of the invention discloses an elastic thread anorectal ligation device which comprises an inner sleeve 1 and an outer sleeve 2.
The inner sleeve 1 is provided with a vacuum pipeline 1-1, the front end of the inner sleeve is fixedly provided with an inner transmitting sleeve 3, and a central cavity of the inner transmitting sleeve 3 is communicated with the vacuum pipeline 1-1 so as to suck pathological tissues such as hemorrhoids and the like by using negative pressure. In this embodiment, preferably, the inner sleeve 1 is cylindrical, and an installation groove for installing the inner transmitting sleeve 3 is provided at an end close to the inner transmitting sleeve 3, and correspondingly, an installation protrusion is provided at an end of the inner transmitting sleeve 3 close to the inner sleeve 1, and the outer peripheral surface of the installation protrusion is conical, so as to improve the adaptability of the installation groove. Specifically, the outer peripheral surface of the mounting protrusion is preferably fixedly connected with the inner side surface of the mounting groove in an interference fit manner, and of course, the outer peripheral surface of the mounting protrusion may also be fixedly connected in a threaded connection manner or in other connection manners, which is not specifically limited herein.
The periphery of the inner transmitting sleeve 3 is provided with at least one accommodating groove 3-3, the accommodating grooves 3-3 are uniformly distributed along the axial direction of the inner sleeve 1, each accommodating groove 3-3 only accommodates one elastic coil, and the continuous transmission can be realized by sleeving more than one elastic coil, so that the repeated installation of the elastic coils is avoided, the operation process is simplified, and the operation is more convenient. It should be noted that the axial direction herein refers to a direction parallel to the central axis of the inner sleeve 1.
The outer sleeve 2 is sleeved on the periphery of the inner sleeve 1 and is abutted against the wrench 4. The wrench 4 is rotatably mounted on the housing 10, so that when the wrench 4 is moved away from one end of the outer sleeve 2 by using the principle of lever, the other end of the wrench 4 naturally pushes the outer sleeve 2 to move, thereby moving the outer sleeve 2 relative to the inner sleeve 1 along the axial direction. In this particular embodiment, the outer sleeve 2 is also preferably cylindrical.
The front end of outer tube 2 is equipped with outer transmitting sleeve 5 admittedly, specifically, the one end that outer transmitting sleeve 5 is close to outer tube 2 is equipped with the connection arch, and the bellied peripheral face of connection realizes linking firmly through interference connection's mode with the medial surface of outer tube 2 central cavity, and of course, threaded connection, or other modes of linking firmly can also be adopted between connection arch and the outer tube 2, do not specifically restrict here. The outer transmitting sleeve 5 is sleeved on the periphery of the inner transmitting sleeve 3 and can move along with the outer sleeve 2 relative to the inner transmitting sleeve 3 along the axial direction so as to push the elastic coils arranged in all the accommodating grooves 3-3 to move towards the direction close to the pathological change tissue until the elastic coils in the accommodating grooves 3-3 close to the pathological change tissue are sleeved on the sucked pathological change tissue.
The wire pushing pipe assemblies 6 comprise at least one group, each group of the wire pushing pipe assemblies 6 is detachably and fixedly arranged on the periphery of the outer sleeve 2, and each group of the wire pushing pipe assemblies 6 is correspondingly connected with the elastic coils sleeved by the accommodating grooves 3-3 one by one so as to gather the corresponding elastic coils after the elastic coils are sleeved on the pathological tissues, thereby bundling the pathological tissues.
In this embodiment, each group of the wire pushing tube assemblies 6 comprises a wire guiding sleeve 6-1 for the elastic wires to pass through, a front end cap 6-2 and a rear end cap 6-3 fixed at the front end and the rear end of the wire guiding sleeve 6-1, and a guide sleeve 6-4 rotatably mounted on the periphery of the wire guiding sleeve 6-1. Specifically, the lead sleeve 6-1, the front end cap 6-2, the rear end cap 6-3 and the guide sleeve 6-4 are all substantially cylindrical. After the elastic coil in the accommodating groove 3-3 is sleeved on the pathological change tissue, the corresponding rear end cap 6-3 is pulled, and the rear end cap 6-3 drives the lead sleeve 6-1 to slide relative to the guide sleeve 6-4 until the elastic coil is tightened on the periphery of the pathological change tissue. Of course, the structure of the push wire pipe assembly 6 is not limited thereto.
In conclusion, the elastic thread anorectal ligation device provided by the invention comprises an inner sleeve 1, an outer sleeve 2 and a thread pushing tube assembly 6. When in operation, firstly, the negative pressure is utilized to suck the pathological tissue through the vacuum pipeline 1-1 of the inner sleeve 1; then the spanner 4 is shifted, the spanner 4 pushes the outer sleeve 2 to move towards the direction close to the pathological change tissue relative to the inner sleeve 1, the outer sleeve 2 drives the outer transmitting sleeve 5 to move, the outer transmitting sleeve 5 jacks up the elastic coil in the accommodating groove 3-3 to move forwards until the elastic coil in the accommodating groove 3-3 close to the pathological change tissue is sleeved on the sucked pathological change tissue; the outer sleeve 2 simultaneously drives the wire pushing pipe component 6 to move forwards along with the corresponding elastic coil; then the wire pushing tube assembly 6 is disassembled, and the elastic wire is pulled so as to draw the elastic coil, so that the elastic coil can tighten the pathological tissue. And because the elastic coils which can be accommodated in the accommodating grooves 3-3 comprise at least one elastic coil, the elastic coils can be sleeved at one time by repeating the actions, so that the continuous firing is realized. In the whole operation process, the wrench 4 is only required to be stirred for multiple times to sleeve at least one elastic coil, the reel and the pipeline release wheel do not need to be frequently rotated, the operation process is simple and convenient, and the operation difficulty is small, so that the elastic line anorectal ligation device provided by the invention is convenient to operate.
Preferably, in this embodiment, the outer periphery of the inner launching sleeve 3 is provided with at least one ring of thread blocking gear rings 3-1, each ring of thread blocking gear rings 3-1 is coaxially arranged with the inner launching sleeve 3, and a plurality of rings of thread blocking gear rings 3-1 are distributed along the axial direction. Each wire blocking gear ring 3-1 forms a containing groove 3-3, and each containing groove 3-3 is specifically positioned at one end of the corresponding wire blocking gear ring 3-1 far away from the inner sleeve 1, so that at least one containing groove 3-3 is formed. The periphery of the inner transmitting sleeve 3 is also provided with a plurality of guide chutes 3-2 which are distributed in the radial direction, each guide chute 3-2 extends along the axial direction and vertically penetrates through all the wire blocking gear rings 3-1, and particularly penetrates through the tooth root of each wire blocking gear ring 3-1. In order to facilitate the elastic coil to be separated from the accommodating grooves 3-3, the central angles between every two adjacent guide sliding grooves 3-2 are different, namely the guide sliding grooves 3-2 are unevenly distributed.
In the specific embodiment, the periphery of the inner transmitting sleeve 3 is specifically provided with three line blocking gear rings 3-1, specifically comprising a first line blocking gear ring 3-13, a second line blocking gear ring 3-14 and a third line blocking gear ring 3-15 which are sequentially arranged from the front end to the rear end of the inner transmitting sleeve 3, and the structure of each line blocking gear ring 3-1 is the same. Correspondingly, the accommodating grooves 3-3 comprise first accommodating grooves 3-31, second accommodating grooves 3-32 and third accommodating grooves 3-33 which are respectively and correspondingly arranged at the front ends of the first gear ring 3-13, the second gear ring 3-14 and the third gear ring 3-15. Four guide sliding grooves 3-2 are specifically arranged on the periphery of the inner launching sleeve 3, the length of each guide sliding groove 3-2 is the same as that of the inner launching sleeve 3, and the width of each guide sliding groove 3-2 is the same. Of course, the number of the stop line gear rings 3-1 and the number of the guide chutes 3-2 are different.
Correspondingly, one end of the outer emission sleeve 5 close to the inner emission sleeve 3 is provided with a plurality of guide sliding blocks 5-1 which are respectively matched with the plurality of guide sliding grooves 3-2 correspondingly, each guide sliding block 5-1 is provided with a top line tooth 5-2 with the same number of turns as the line blocking gear ring 3-1, and the plurality of top line teeth 5-2 are distributed along the axial direction so as to push the elastic coil to be separated from the storage groove 3-3.
In this particular embodiment, the guide sliders 5-1 are particularly composed of four, four guide sliders 5-1 being distributed annularly so as to move along the corresponding guide sliders 5-1. The number of the guide sliders 5-1 can be adjusted accordingly according to the number of the guide chutes 3-2, and is not limited in detail. Each guide sliding block 5-1 specifically comprises three top line teeth 5-2, specifically a first top line tooth 5-23, a second top line tooth 5-24 and a third top line tooth 5-25 which are sequentially arranged from the front end to the rear end of the outer shooting sleeve 5.
In an initial state, the front end face of the first top line tooth 5-23 is positioned behind the front end face of the first wire blocking gear ring 3-13, and the axial distance between the front end face and the front end face is smaller than the thickness of the first wire blocking gear ring 3-13; similarly, the front end surface of the second top-line tooth 5-24 is positioned behind the front end surface of the second wire retaining ring 3-14, and the axial distance between the front end surface and the front end surface is smaller than the thickness of the second wire retaining ring 3-14; the axial distance between the front end surfaces of the third top line teeth 5-25 and the rear end surfaces of the third line blocking gear rings 3-15 is smaller than the thickness of the third line blocking gear rings 3-15; thereby ensuring that the top thread tooth 5-2 does not touch the elastic coil in the accommodating groove 3-3 in the initial state, so that the top thread tooth 5-2 fully jacks up the elastic coil sleeved in the accommodating groove 3-3 when moving forwards.
After the wrench 4 is buckled, the outer sleeve 2 drives the outer transmitting sleeve 5 to move forwards towards the direction close to the pathological change tissue, and naturally, the first top line teeth 5-23 move forwards relative to the first line blocking gear ring 3-13, so that the first top line teeth 5-23 jack up the elastic coils in the first accommodating grooves 3-31 until the elastic coils in the first accommodating grooves 3-31 are sleeved on the pathological change tissue; meanwhile, the second top line teeth 5-24 move forwards relative to the second line blocking gear rings 3-14 until the second top line teeth 5-24 are aligned with the first line blocking gear rings 3-13, so that the second top line teeth 5-24 jack up the elastic coils in the second accommodating grooves 3-32 until the elastic coils in the second accommodating grooves 3-32 fall into the first accommodating grooves 3-31; similarly, the third top-line teeth 5 to 25 are advanced relative to the third gear ring 3 to 15 until the third top-line teeth 5 to 25 are aligned with the second gear ring 3 to 14, so that the third top-line teeth 5 to 25 jack up the elastic coils in the third accommodating grooves 3 to 33 until the elastic coils in the third accommodating grooves 3 to 33 fall into the second accommodating grooves 3 to 32. After the wrench 4 is loosened, the first teeth 5-23 pass through the elastic coils in the first receiving grooves 3-31, and the second teeth 5-24 pass through the elastic coils in the second receiving grooves 3-32 until returning to the initial position. Repeating the above steps until all the elastic coils are used. When the number of the gear ring 3-1 is changed, the action is substantially the same as the above action, and the description thereof is omitted.
In this embodiment, each thread stop gear 3-1 preferably includes a thread stop end face 3-11 and a thread stop tapered face 3-12, and the thread stop end face 3-11 is disposed perpendicular to the axial direction so as to block the elastic thread coil from coming out of the receiving groove 3-3. The large-diameter end of the wire blocking conical surface 3-12 is fixedly connected with one side, close to the inner sleeve 1, of the wire blocking end surface 3-11, so that when the elastic coil is jacked up by the top wire teeth 5-2, the elastic coil is guided to move by the wire blocking conical surface 3-12.
Each of the top-line teeth 5-2 includes a top-line end face 5-21 and a top-line conical face 5-22, and the top-line end face 5-21 is arranged perpendicular to the axial direction so as to jack up the elastic coil in the receiving groove 3-3 and make the elastic coil slip off from the corresponding blocking conical face 3-12. The large-diameter end of the top line conical surface 5-22 is fixedly connected with one end of the top line end surface 5-21 close to the outer sleeve 2, so that when the top line conical surface 5-22 is reset, the top line conical surface 5-22 cannot jack up the elastic coil sleeved in the accommodating groove 3-3, and the reset of the reverse elastic coil is avoided.
Of course, the structures of the stop line gear ring 3-1 and the top line gear 5-2 are not limited to the above structures, and the similar structures are adopted for replacement, so that the purpose of achieving the invention is not affected.
In order to clamp the wire pushing pipe component 6, the invention also comprises at least one wire pushing pipe bracket 7 fixedly arranged at the top of the periphery of the outer sleeve 2 so as to support the wire pushing pipe component 6. The push wire pipe bracket 7 is provided with at least one clamping groove 7-1 for clamping the corresponding push wire pipe assembly 6, so that the push wire pipe assembly 6 can be conveniently disassembled on the premise of fixing the push wire pipe assembly 6. In this embodiment, the wire pushing pipe support 7 comprises two wire pushing pipe supports 7, each wire pushing pipe support 7 is substantially arc-shaped, and the bottom side surface of each wire pushing pipe support 7 is matched with the outer peripheral surface of the outer sleeve 2.
Specifically, a connecting groove is formed in the top of the outer sleeve 2, the connecting groove is long-strip-shaped, a connecting key 7-2 matched with the connecting groove is installed in the connecting groove, the connecting key 7-2 is also long-strip-shaped, and the connecting groove and the connecting key 7-2 are in interference connection; correspondingly, the bottom of each wire pushing pipe support 7 is provided with a fixing groove matched with the connecting key 7-2, and the fixing groove is in interference connection with the connecting key 7-2, so that each wire pushing pipe support 7 and the connecting key 7-2 are relatively fixed. Two wire pushing pipe brackets 7 are respectively fixed at two ends of the connecting key 7-2. Of course, the structure and fixing manner of the wire pushing pipe support 7 are not limited thereto.
Specifically, the top of each wire pushing pipe support 7 is provided with three circular arc-shaped clamping grooves 7-1 for correspondingly clamping three wire pushing pipe assemblies 6 which are connected with the elastic coils in the three accommodating grooves 3-3 one by one. The lead bushing 6-1 of each push wire pipe assembly 6 is matched with the clamping groove 7-1, and the aperture of the clamping groove 7-1 is slightly smaller than the outer diameter of the lead bushing 6-1, so that the push wire pipe assembly 6 can be easily taken out from the clamping groove 7-1 by external force. Of course, the structure of the holding groove 7-1 is not limited thereto.
In order to prevent the relative rotation between the inner sleeve 1 and the outer sleeve 2, an anti-rotation component 8 is arranged between the inner sleeve 1 and the outer sleeve 2. In this embodiment, prevent changeing subassembly 8 specifically including being fixed in the U type draw-in groove of outer tube 2 rear end inside wall with set firmly in interior sleeve pipe 1's periphery and with the protruding of preventing changeing of U type draw-in groove looks joint, prevent changeing protruding edge interior sleeve pipe 1 radially extend until inserting the U go draw-in groove. Of course, the type of the anti-rotation component 8 is not limited thereto.
The invention also comprises a vacuum pipe sleeve 9 and a pushing pipe sleeve 15, wherein the vacuum pipe sleeve 9 is communicated with the vacuum pipeline 1-1 of the inner sleeve 1, the pushing pipe sleeve 15 is fixed at the front end of the shell 10, the vacuum pipe sleeve 9 is arranged in the shell 10, one end, extending into the shell 10, of the pushing pipe sleeve 15 is sleeved on the periphery of the vacuum pipe sleeve 9, the vacuum pipe sleeve 9 is detachably connected with one end, far away from the inner emission sleeve 3, of the inner sleeve 1, the pushing pipe sleeve 15 is detachably connected with one end, far away from the outer emission sleeve 5, of the outer sleeve 2, and when the inner sleeve 1 is connected with the vacuum pipe sleeve 9, the pushing pipe sleeve 15 is simultaneously connected with the outer sleeve 2, so.
In this embodiment, the front end of the vacuum tube 9 is sleeved on the outer circumference of the rear end of the inner tube 1, and the central cavity is a cylindrical through hole arranged in the center of the vacuum tube 9. The periphery of the rear end of the inner sleeve 1 is provided with an inner clamping lug 1-2, the inner side wall of the vacuum sleeve 9 is provided with a clamping sliding groove 9-1 and a clamping connecting groove 9-2, when the inner sleeve 1 is inserted into the vacuum sleeve 9, the inner clamping lug 1-2 slides along the clamping sliding groove 9-1 until the inner clamping lug 1-2 enters the clamping connecting groove 9-2, and then the inner sleeve 1 is rotated relative to the vacuum sleeve 9 to enable the inner clamping lug 1-2 to abut against the groove edge of the clamping connecting groove 9-2, so that the inner sleeve 1 is connected with the vacuum sleeve 9.
Further, the end of the push sleeve 15 remote from the outer sleeve 2 abuts against a spanner in order to bring the outer sleeve 2 axially in relation to the inner sleeve 1. In the specific embodiment, the propelling sleeve 15 comprises a connecting sleeve 15-1 and a propelling sleeve 15-2, and the inner side surface of the propelling sleeve 15-2 is in interference fit connection or threaded connection with the outer peripheral surface of the connecting sleeve 15-1. One end of the propelling sleeve 15-2 far away from the connecting sleeve 15-1 is abutted against the wrench 4.
Specifically, the outer periphery of the outer sleeve 2 is fixedly provided with an outer clamping bulge 2-1, and the inner side surface of the connecting sleeve 15-1 is provided with a clamping guide groove 15-11 and a clamping groove connecting groove 15-12. When the outer sleeve 2 is inserted into the connecting sleeve 15-1, the outer clamping protrusion 2-1 slides along the clamping guide groove 15-11 until entering the clamping connection groove 15-12, the outer sleeve 2 is rotated relative to the connecting sleeve 15-1, the outer clamping protrusion 2-1 abuts against the groove edge of the clamping connection groove 15-12, and the outer sleeve 2 is convenient for the connecting sleeve 15-1 to realize connection. It should be noted that, because the inner sleeve 1 and the outer sleeve 2 can rotate synchronously along the radial direction under the action of the rotation-preventing component 8, the positions of the inner clamping protrusion 1-2 and the clamping chute 9-1 and the positions of the outer clamping protrusion 2-1 and the clamping guide slot 15-11 need to be correspondingly arranged, so that after the outer sleeve 2 is rotated by a certain angle, the connection between the inner sleeve 1 and the vacuum sleeve 9 and between the outer sleeve 2 and the pushing sleeve 15 can be realized simultaneously.
One end of the central cavity of the vacuum pipe sleeve 9, which is far away from the inner sleeve 1, is connected with a vacuum pump through a main vacuum pipe. In this embodiment, the rear end of the vacuum sleeve 9, i.e. the end remote from the inner jacket tube 1, is provided with a first connection and a second connection, wherein the first connection and the second connection are arranged in a Y-shape. The first interface and the central cavity are coaxially arranged, and the first interface is provided with a plugging block 12 so as to plug the first interface. The block 12 may be a rubber plug or a wooden plug, etc. The second interface is connected with the main vacuum tube.
Preferably, the main vacuum tube comprises at least two segments of inner vacuum tubes 13 installed in the housing 10, and the adjacent two segments of inner vacuum tubes 13 are connected by inner housing tube joints 19 fixed in the housing 10. The outer periphery of the inner shell pipe joint 19 is fixed on the shell 10 and is approximately cylindrical, two ends of the inner shell pipe joint 19 are respectively and fixedly connected with the inner vacuum pipe 13 so as to ensure that the vacuum pipeline 1-1 has better vacuum degree,
further preferably, the main vacuum tube further comprises an outer vacuum tube installed outside the housing 10, and the outer vacuum tube is connected to the vacuum pump. The inner vacuum tube 13 is communicated with the outer vacuum tube through a vacuum tube joint 14, the vacuum tube joint 14 penetrates through the shell 10, and the vacuum tube joint 14 is fixed on the shell 10 to prevent the inner vacuum tube 13 from being disconnected with the vacuum tube joint 14. The inner vacuum tube 13 and the outer vacuum tube are preferably made of silicon gel, but not limited thereto. The inner vacuum tube 13 and the outer vacuum tube are respectively fixed at two ends of the vacuum tube joint 14, so that the main vacuum tube is prevented from being seriously abraded due to direct contact with the shell 10, and the service life of the main vacuum tube is prolonged.
In order to ensure the sealing performance, a sealing element 11 is arranged between the inner side surface of the vacuum pipe sleeve 9 and the outer peripheral surface of the inner sleeve 1, the sealing element 11 is specifically an O-shaped sealing ring, and correspondingly, the rear end of the inner sleeve 1 is provided with an annular mounting groove for mounting the sealing element 11.
In this embodiment, the inner side wall of the housing 10 is fixedly provided with a rotation pin for supporting the wrench 4 to rotate, and in order to automatically reset the wrench 4, the present invention includes a reset torsion spring sleeved on the rotation pin and having a first force arm and a second force arm respectively abutting against the inner side wall of the housing 10 and the wrench 4, so that the wrench 4 can be automatically reset after the wrench 4 is fastened, and the operation is more convenient.
Further, in this particular embodiment, the end of the propulsion sleeve 15 close to the wrench 4 is provided with an abutment flange 15-21, i.e. the rear end of the propulsion sleeve 15-2 is provided with an annular abutment flange 15-21. The inner side wall of the shell 10 is fixedly provided with an annular abutting block 10-1 which extends along the radial direction correspondingly. Correspondingly, the invention also comprises an elastic element 16 which is sleeved on the pushing pipe sleeve 15 and two ends of which are respectively abutted against the abutting flanges 15-21 and the annular abutting block 10-1. When the wrench 4 is pulled, the thrust sleeve 15 is advanced relative to the housing 10 and the inner sleeve 1, the elastic element 16 being compressed; when the wrench 4 is loosened, the wrench 4 is separated from the pushing pipe sleeve 15, the elastic element 16 is reset by the elastic force to drive the pushing pipe sleeve 15 to move backwards relative to the shell 10, so that the pushing pipe sleeve 15 and the outer sleeve 2 are automatically reset, the operation steps are simplified, the outer sleeve 2 is prevented from being manually pushed to reset, and the operation is more convenient. The elastic member 16 is preferably a cylindrical spring, but the self-returning structure of the push socket 15 is not limited thereto.
The invention also comprises a stop assembly 17 arranged between the inner sleeve 1 and the outer sleeve 2 so as to limit the movement distance of the outer sleeve 2 relative to the inner sleeve 1 along the resetting direction; in addition, when the outer sleeve 2 and the propelling sleeve 15 are connected, the stopping component 17 can also be used for preventing the inner sleeve 1 from being separated from the outer sleeve 2, so that the inner sleeve 1 and the outer sleeve 2 can be synchronously disassembled and assembled. In this embodiment, the stop assembly 17 comprises an annular stop fixed on the outer circumference of the front end of the inner sleeve 1 and a stop end surface of the outer shooting sleeve 5, and the stop end surface of the outer shooting sleeve 5 is specifically the rear end surface of the outer shooting sleeve 5. When the wrench 4 is buckled, the outer transmitting sleeve 5 moves forwards relative to the inner sleeve 1, and the end face of the stop is separated from the annular stop block; when the wrench 4 is loosened, the outer transmitting sleeve 5 moves backwards relative to the inner sleeve 1 until the stop end surface abuts against the annular stop block, so that the outer transmitting sleeve 5 is prevented from moving backwards in a transition manner, the moving distance between the outer transmitting sleeve 5 and the outer sleeve 2 is convenient to limit, and the moving time is further shortened. Of course, the stop end surface can also be replaced by an annular bump fixed on the inner side wall of the outer sleeve 2, the annular bump is matched with the annular stop block, the purpose of the invention can also be achieved, and the structure of the stop component 17 is not limited to the two structures.
The directional words are used herein with reference to the current view of fig. 1, the front end of the text refers to the end away from the housing 10. Forward movement refers to the direction indicated by the solid arrow, and backward movement refers to the direction indicated by the dashed arrow.
In addition, the invention also comprises a vacuum control switch 18 which is arranged on the shell 10 and is used for controlling the on-off of the main vacuum tube. When the vacuum control switch 18 is closed, the main vacuum tube can provide negative pressure for the inner transmitting sleeve 3; conversely, the negative pressure is released so that the inner transmitting sleeve 3 is separated from the sucked lesion tissue.
The working principle of the elastic thread anorectal ligation device provided by the invention is as follows:
the vacuum control switch 18 is closed, the shell 10 is held by hand, the inner transmitting sleeve 3 provided with the elastic coil is aligned to the pathological change tissue, and the pathological change tissue is sucked;
the wrench 4 is buckled, the wrench 4 pushes the pushing pipe sleeve 15, the pushing pipe sleeve 15 extrudes the elastic element 16, the pushing pipe sleeve 15 drives the outer sleeve 2 to move forwards relative to the inner sleeve 1 along the axial direction, and the outer sleeve 2 drives the outer emission sleeve 5 to move forwards relative to the inner emission sleeve 3; the first top line teeth 5-23 jack up the elastic coils in the first accommodating grooves 3-31 until the elastic coils are sleeved on the lesion tissues, meanwhile, the second top line teeth 5-24 jack up the elastic coils in the second accommodating grooves 3-32 until the elastic coils fall into the first accommodating grooves 3-31, and the third top line teeth 5-25 jack up the elastic coils in the third accommodating grooves 3-33 until the elastic coils fall into the second accommodating grooves 3-32;
after the wrench 4 is loosened, the wrench 4 resets under the action of the reset torsion spring, the wrench 4 is separated from the pushing pipe sleeve 15, the pushing pipe sleeve 15 drives the outer sleeve 2 to move backwards relative to the inner sleeve 1 under the action of the elastic element 16 until the stop end face of the outer transmitting sleeve 5 abuts against the annular stop block;
the vacuum control switch 18 is turned on, and the inner transmitting sleeve 3 stops sucking the lesion tissues;
taking down the wire pushing pipe assembly 6, drawing the rear end cap 6-3, and drawing the elastic coil to tighten the pathological tissue;
repeating the above actions until all the elastic coils are utilized, thus completing the anorectal ligation.
The elastic thread anorectal ligation device provided by the invention is described in detail above, a specific example is applied in the text to explain the principle and the implementation mode of the invention, and the description of the above example is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. The utility model provides an elasticity line anus intestines ligation device which characterized in that includes:
an inner sleeve (1) with a vacuum line (1-1); the front end of the inner sleeve (1) is fixedly provided with an inner transmitting sleeve (3) which is communicated with the vacuum pipeline (1-1) to suck pathological tissues, and the periphery of the inner transmitting sleeve (3) is provided with at least one accommodating groove (3-3) which is distributed along the axial direction to accommodate the elastic coils one by one;
the outer sleeve (2) is sleeved on the periphery of the inner sleeve (1) and abuts against a wrench (4) rotatably mounted on the shell (10) so as to move relative to the inner sleeve (1) under the action of the wrench (4), and the front end of the outer sleeve (2) is fixedly provided with an outer transmitting sleeve (5) which is sleeved on the periphery of the inner transmitting sleeve (3) so as to push all elastic coils to move forwards in the direction close to the pathological change tissue until the elastic coils in the containing grooves (3-3) close to the pathological change tissue are sleeved on the sucked pathological change tissue;
at least one group of wire pushing tube assemblies (6) which are detachably and fixedly arranged on the periphery of the outer sleeve (2), are correspondingly connected with the elastic coils sleeved in the accommodating grooves (3-3) and are used for gathering the corresponding elastic coils after the elastic coils are sleeved on the pathological change tissues so as to tie up the pathological change tissues.
2. The elastic thread anorectal ligation device according to claim 1, wherein the periphery of the inner transmitting sleeve (3) is provided with at least one thread blocking gear ring (3-1) which is distributed along the axial direction in a staggered way to form at least one accommodating groove (3-3) and a plurality of guide sliding grooves (3-2) which are distributed along the radial direction and extend along the axial direction to vertically penetrate through all the thread blocking gear rings (3-1), one end of the outer transmitting sleeve (5), which is close to the inner transmitting sleeve (3), is provided with a plurality of guide sliding blocks (5-1) which are respectively matched with the guide sliding grooves (3-2) correspondingly, and each guide sliding block (5-1) is provided with top line teeth (5-2) which have the same number of turns as the line blocking gear rings (3-1) and are axially distributed to push the elastic coils to be separated from the accommodating grooves (3-3) where the elastic coils are located.
3. The elastic thread anorectal ligation device according to claim 2, wherein each thread blocking gear ring (3-1) comprises a thread blocking end face (3-11) which is perpendicular to the axial direction and is used for blocking the elastic thread coil from being separated from the accommodating groove (3-3), and a thread blocking conical face (3-12) of which the large-diameter end is fixedly connected with one side, close to the inner sleeve (1), of the thread blocking end face (3-11) so as to guide the elastic thread coil to move when the elastic thread coil is jacked up by the top thread teeth (5-2); the top line teeth (5-2) comprise top line end faces (5-21) which are perpendicular to the axial direction and used for jacking up the elastic coils in the accommodating grooves (3-3) to slide off from the line blocking conical faces (3-12) and top line conical faces (5-22) of which the large-diameter ends are fixedly connected with one ends, close to the outer sleeve (2), of the top line end faces (5-21).
4. The elastic thread anorectal ligation device according to claim 1, further comprising at least one thread pushing tube support (7) which is fixedly arranged on the top of the outer sleeve (2) and used for supporting the thread pushing tube assembly (6), wherein the thread pushing tube support (7) is provided with at least one clamping groove (7-1) used for clamping the corresponding thread pushing tube assembly (6).
5. The elastic wire anorectal ligation device according to claim 1, wherein an anti-rotation assembly (8) for limiting the rotation of the inner sleeve (1) relative to the outer sleeve (2) is arranged between the inner sleeve (1) and the outer sleeve (2).
6. The elastic thread anorectal ligator according to any one of claims 1 to 5 further comprising:
the vacuum pipe sleeve (9) is communicated with the vacuum pipeline (1-1) in the central cavity, is arranged in the shell (10) and is detachably connected with one end, far away from the inner transmitting sleeve (3), of the inner sleeve (1);
the pushing pipe sleeve (15) is abutted against the wrench (4), fixed at the front end of the shell (10), sleeved on the periphery of the vacuum pipe sleeve (9) and detachably connected with one end, far away from the outer emission sleeve (5), of the outer sleeve (2); when the inner jacket tube (1) is connected to the vacuum jacket tube (9), the thrust jacket tube (15) is simultaneously connected to the outer jacket tube (2).
7. The elastic wire anorectal ligation device according to claim 6, wherein one end of the central cavity far away from the inner sleeve (1) is connected with a vacuum pump through a main vacuum tube, the main vacuum tube comprises at least two sections of inner vacuum tubes (13) arranged in the shell (10), and the two adjacent sections of inner vacuum tubes (13) are connected through inner shell pipe joints (19) fixed in the shell (10).
8. The elastic thread anorectal ligation device according to claim 7, wherein the main vacuum tube further comprises an outer vacuum tube mounted outside the housing (10), and the inner vacuum tube (13) is communicated with the outer vacuum tube through a vacuum tube joint (14) arranged on the housing (10).
9. The elastic thread anorectal ligator according to claim 8 wherein one end of the push sleeve (15) close to the wrench (4) is provided with an abutment flange (15-21); the inside wall of casing (10) is equipped with annular butt piece (10-1), still includes:
the rotating pin is sleeved on the shell (10) and used for supporting the wrench (4) to rotate, and the rotating pin is provided with a first force arm and a second force arm which are respectively abutted against the inner side wall of the shell (10) and the wrench (4), and a reset torsion spring used for assisting the wrench (4) to reset;
and the elastic element (16) is sleeved on the pushing pipe sleeve (15), and two ends of the elastic element respectively abut against the abutting flange (15-21) and the annular abutting block (10-1) so as to drive the pushing pipe sleeve (15) and the outer sleeve (2) to automatically reset when the wrench (4) resets.
10. The elastic wire anorectal ligator according to claim 9 further comprising a stop assembly (17) arranged between said inner sleeve (1) and said outer sleeve (2) to limit the distance of movement of said outer sleeve (2) relative to said inner sleeve (1) in the reset direction and to prevent said inner sleeve (1) from disengaging from said outer sleeve (2) when said outer sleeve (2) is connected to said push sleeve (15).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811536244.6A CN111317547B (en) | 2018-12-14 | 2018-12-14 | Elastic thread anorectal ligation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811536244.6A CN111317547B (en) | 2018-12-14 | 2018-12-14 | Elastic thread anorectal ligation device |
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| CN111317547A true CN111317547A (en) | 2020-06-23 |
| CN111317547B CN111317547B (en) | 2022-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811536244.6A Active CN111317547B (en) | 2018-12-14 | 2018-12-14 | Elastic thread anorectal ligation device |
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| CN112244931A (en) * | 2020-11-16 | 2021-01-22 | 常州安康医疗器械有限公司 | Combined stainless steel multi-ring elastic thread anorectal ligation device |
| CN113558705A (en) * | 2021-07-26 | 2021-10-29 | 苏州法兰克曼医疗器械有限公司 | Double-ring ligation device |
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