CN219538444U - Polyp ligation device - Google Patents

Abstract

The utility model discloses a polyp ligation device, which relates to the technical field of medical equipment and comprises an operation handle, a connecting hose and a ligation component, wherein the operation handle is arranged at the tail end of the connecting hose; the fixed plate is arranged in the protective tube, a plurality of openable polyp clamps are circumferentially arranged on the fixed plate, and elastic ligation rings are sleeved between the polyp clamps; the driving mechanism is arranged at the bottom of the protective tube and is used for driving the polyp clamp to open and close; and the top ring mechanism is arranged on the polyp clamp and used for separating the elastic ligation ring from the polyp clamp. According to the utility model, the polyp clamp is opened and stored firstly by the driving device and then contracted to clamp the polyp, the elastic ligation ring is propped up and dropped from the polyp clamp by the top ring mechanism, and the polyp is clamped by the elastic ligation ring, so that the ligation of the polyp is completed, and the operation can be completed by a single person, and the use is very convenient.

Description

Polyp ligation device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a polyp ligation device.

Background

At present, a nylon snare is a common polyp removing tool, when the nylon snare is installed, the plastic outer sleeve is pulled towards the direction of an assistant, the metal draw hook in the releasing device is exposed, then the tail end of the nylon snare is fastened with the metal draw hook, the plastic outer sleeve is slightly pushed out, and the nylon snare is contained in the plastic outer sleeve. When the endoscope reaches the lesion area, the assistant steps on the mounted nylon snare releaser, and the operator inserts the nylon snare releaser along the forceps channel of the endoscope. When the front end part of the plastic outer sleeve is visible in the visual field, the assistant slowly stretches the nylon snare from the plastic outer sleeve (note that the nylon snare is not suitable to stretch out of the plastic outer sleeve too long, otherwise, the tail end of the nylon snare is easy to fall off from the metal draw hook). The nylon snare is sleeved on the bulge lesion base, after the position is confirmed, the assistant slowly pushes the plastic sleeve outwards to the bulge lesion base, and then slowly tightens the release device while slowly pulling the plastic sleeve towards the assistant, so that the plastic fixer in the plastic sleeve can be seen to push forwards, and the nylon snare is gradually contracted until the bulge lesion base is tightened.

From the above, it can be seen that not only is the nylon snare cumbersome to install during use of the nylon ligation device, but also an assistant is required to assist from the side during operation, which is not conducive to the operation.

Disclosure of Invention

The utility model mainly aims to provide a polyp ligature device which aims to solve the technical problems.

The technical scheme adopted by the utility model is as follows:

the utility model provides a polyp ligature ware, includes handle, coupling hose and ligation subassembly, the handle sets up in coupling hose's end, the ligation subassembly set up in coupling hose's front end, the ligation subassembly includes:

a protective tube integral with the connection hose;

the fixed plate is arranged in the protection tube, a plurality of openable polyp clamps are circumferentially arranged on the fixed plate, and elastic ligation rings are sleeved between the polyp clamps;

the driving mechanism is arranged at the bottom of the protective tube and is used for driving the polyp clamp to open and close;

and the top ring mechanism is arranged on the polyp clamp and is used for enabling the elastic ligation ring to be separated from the polyp clamp.

Optionally, the fixed plate circumference is provided with the outside guide chute that extends of many by the center, the guide chute sliding is provided with the slider, polyp clamp upright set up in on the slider.

Optionally, an annular groove is formed in the outer wall surface of the polyp clamp, and the elastic ligation ring is sleeved in the annular groove.

Optionally, the driving mechanism includes:

the miniature driving motor is arranged in the protection tube;

the driving screw is arranged at the output end of the micro driving motor through a coupler;

the threaded sliding sleeve is arranged on the driving screw in a matching way;

the connecting rod, connecting rod one end with screw thread sliding sleeve activity articulates, the other end of connecting rod with the slider activity articulates.

Optionally, the top ring mechanism includes a movable top rod traversing the polyp clamp, and two ends of the movable top rod are provided with enlarged top rod heads.

Compared with the prior art, the utility model has the beneficial effects that:

according to the polyp ligation device provided by the embodiment of the utility model, the connecting hose is sent to a polyp through the endoscope forceps channel, after the protecting tube is aligned to the polyp, the polyp clamp is opened by the driving device to store the polyp, then the polyp is contracted and clamped, the elastic ligation ring is ejected from the polyp clamp through the top ring mechanism, and the polyp is clamped by the elastic ligation ring, so that the ligation of the polyp is completed, and the polyp ligation device can be completed by a single person and is very convenient to use.

Drawings

Fig. 1 is a schematic view of a polyp ligator according to an embodiment of the present utility model in a configuration at one viewing angle;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a schematic structural view of the ligation assembly.

The reference numerals in the drawings indicate:

1-operation handle, 2-connection hose, 3-ligation component, 301-protection tube, 302-micro driving motor, 303-driving screw, 304-thread sliding sleeve, 305-connecting rod, 306-fixed plate, 307-guiding chute, 308-slider, 309-polyp clamp, 310-elastic ligation ring and 311-top ring mechanism.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Referring to fig. 1, an embodiment of the present utility model provides a polyp trepan comprising a handle 1, a connection hose 2 and a trepan assembly 3, wherein the handle 1 is disposed at the end of the connection hose 2 for operating the trepan assembly 3, and the trepan assembly 3 is disposed at the front end of the connection hose 2 for trepan polyps.

In particular the number of the elements,

referring to fig. 2 and 3, the ligation assembly 3 includes a protection tube 301, a driving mechanism, a fixing plate 306, a polyp clamp 309 and a top ring mechanism 311, where the protection tube 301 is welded with the connection hose 2 into a whole, the protection tube 301 is a transparent tube body, one end of the protection tube 301 connected with the connection hose 2 is provided with a bottom cover, a wire passing hole is formed in the bottom cover, the driving mechanism includes a micro driving motor 302, a driving screw 303, a threaded sliding sleeve 304 and a connecting rod 305, the micro driving motor 302 is fixed on the bottom cover of the protection tube 301, the operation handle 1 is provided with a double-pole double-throw switch for controlling the micro driving motor 302, and for controlling the forward and reverse rotation of the micro driving motor 302, a power supply device for supplying power to the micro driving motor 302 is naturally arranged in the operation handle 1, and an electric connection wire is connected with the micro driving motor 302 from the wire passing hole through the inside of the connection hose 2.

In this embodiment, the driving link is connected with the output end of the micro driving motor 302 by a coupling, the driving screw 303 is in the same direction as the protection tube 301, the threaded sliding sleeve 304 is sleeved on the driving screw 303, the hinge base is circumferentially arranged around the threaded sliding sleeve 304, and one end of the connecting link 305 is movably hinged with the hinge base.

Referring to fig. 2 and 3, a bearing hole is provided at the central position of the fixing plate 306, a bearing is installed in the bearing hole, the top end of the driving screw 303 is disposed in the bearing in an interference manner, the fixing plate 306 is fixedly connected with the inner wall of the protection tube 301, a plurality of guiding sliding grooves 307 extending outwards from the center are circumferentially provided on the fixing plate 306, the guiding sliding grooves 307 penetrate through the upper and lower surfaces of the fixing plate 306, side grooves are provided on the side walls of the guiding sliding grooves 307 along the length direction, sliding blocks 308 are installed in the guiding sliding grooves 307, lateral protrusions embedded in the side grooves are provided on two sides of the sliding blocks 308, the sliding blocks 308 can be limited in the guiding sliding grooves 307 by utilizing the cooperation of the lateral protrusions and the lateral grooves, and only can slide forward and backward along the guiding sliding grooves 307 without falling. Each slider 308 is provided with an integrally formed polyp clamp 309, the outer side wall of the polyp clamp 309 is provided with a chute, and the inner sleeve of the chute is provided with an elastic ligation ring 310.

In order to realize that the driving mechanism drives the polyp clamp 309 to open and close, as shown in fig. 3, a hinge seat is disposed at the bottom of the slider 308, and the other end of the connecting rod 305 is movably connected to the hinge seat, so that it is conceivable that the driving screw 303 is driven to rotate forward and backward by forward and backward rotation of the micro driving motor 302, so that the threaded sliding sleeve 304 moves up and down along the driving screw 303, and the polyp clamp 309 can be opened and closed by the connecting rod 305.

Referring to fig. 2 and 3, a through hole is formed in the position of the polyp clamp 309 opposite to the elastic ligation ring along the direction perpendicular to the polyp clamp 309, and a top ring mechanism 311 is disposed in the through hole, wherein the top ring mechanism 311 comprises a movable top rod traversing the through hole, one end of the movable top rod abuts against the elastic ligation ring 310, the other end of the movable top rod is located inside the polyp clamp 309, the length of the movable top rod is greater than the hole depth of the through hole, and two ends of the movable top rod are provided with expanded top rod heads to prevent the movable top rod from falling off the polyp clamp 309.

From the above, the polyp ligation device provided by the embodiment of the utility model has the following application method:

the connecting hose 2 is sent into a polyp through an endoscope forceps channel, then a control button is pressed down on the micro driving motor 302 on the operating handle 1 to enable the micro driving motor 302 to rotate forward to drive the driving screw 303 to rotate forward, the driving screw 303 rotates forward to drive the threaded sliding sleeve 304 to move upwards, the polyp clamp 309 is opened, the elastic loop is broken up, then the protecting hose 301 at the front end is adjusted to enable the protecting hose 2 to be buckled on the polyp due to the fact that the protecting hose 301 is observed through the endoscope, then the control button is pressed down on the micro driving motor 302 on the operating handle 1 to enable the micro driving motor 302 to rotate reversely to drive the driving screw 303 to rotate reversely, the driving screw 303 rotates reversely to drive the threaded sliding sleeve 304 to move downwards, so that the polyp clamp 309 is gradually folded up, when the polyp clamp 309 starts to contact the polyp, the top ring mechanism 311 is also propped against the polyp clamp 309 to continuously tighten, the polyp applies a force to the top ring mechanism 311, so that the polyp pushes the elastic ligation ring 310 out of the ring groove, and pushes the elastic ligation ring 310 away from the polyp clamp 309, in order to enable the elastic ligation ring 310 to successfully ligate the polyp, the outer wall of the polyp clamp 309 has a wedge-shaped structure with gradually smaller outer diameter from the ring groove side to the mouth side of the polyp clamp 309, and the elastic ligation ring 310 is expanded to have an elastic force contracting toward the center, so that after the elastic ligation ring 310 is pushed away from the ring groove, the root of the polyp is sleeved along the outer wall of the polyp clamp 309 with gradually smaller outer diameter by the elastic force of contraction of the elastic ligation ring 310, and thus the polyp is completed, naturally, in order to enable the pushed-out elastic ligation ring 310 to be separated to the mouth side of the polyp clamp 309, the ejector head contacted by the ejector rod and the elastic ligation ring 310 has an inclined contact surface, the contact surface is inclined to the mouth side of the polyp clamp 309, and finally, the polyp clamp 309 is opened, the polyp is separated, and the connecting hose 2 is moved out of the endoscopic forceps channel.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims (5)

1. The utility model provides a polyp ligature ware, its characterized in that includes handle (1), coupling hose (2) and ligature subassembly (3), handle (1) set up in the end of coupling hose (2), ligature subassembly (3) set up in the front end of coupling hose (2), ligature subassembly (3) include:

a protective tube (301) integral with the connection hose (2);

a fixed plate (306) arranged in the protective tube (301), wherein a plurality of openable polyp clamps (309) are circumferentially arrayed on the fixed plate (306), and elastic ligation rings (310) are sleeved between the polyp clamps (309);

the driving mechanism is arranged at the bottom of the protective tube (301) and is used for driving the polyp clamp (309) to open and close;

and a top ring mechanism (311), wherein the top ring mechanism (311) is arranged on the polyp clamp (309), and the top ring mechanism (311) is used for separating the elastic ligation ring (310) from the polyp clamp (309).

2. The polyp ligator according to claim 1, wherein the fixing plate (306) is circumferentially provided with a plurality of guide runners (307) extending outwardly from the center, a slider (308) is slidably provided in the guide runners (307), and the polyp clip (309) is vertically provided on the slider (308).

3. The polyp ligator according to claim 2, wherein an annular groove is provided on an outer wall surface of the polyp clip (309), and the elastic ligature ring (310) is sleeved in the annular groove.

4. The polyp ligator according to claim 2, wherein said drive mechanism comprises:

a micro-drive motor (302), the micro-drive motor (302) being mounted within the protective tube (301);

the driving screw (303) is arranged at the output end of the micro driving motor (302) through a coupler;

a threaded sliding sleeve (304), wherein the threaded sliding sleeve (304) is arranged on the driving screw (303) in a matching way;

the connecting rod (305), connecting rod (305) one end with screw thread sliding sleeve (304) activity articulates, connecting rod (305) other end with slider (308) activity articulates.

5. The polyp ligator according to claim 1, wherein said top ring mechanism (311) comprises a movable top rod traversing said polyp clamp (309), said movable top rod being provided at both ends with enlarged top rod heads.