CN217723574U - Detachable liquid bag magnetic traction device - Google Patents

Abstract

The utility model discloses a can break away from formula liquid bag magnetism draw gear, set up the outer tube housing, the tip department is provided with the liquid bag in the outer tube housing, the inboard of liquid bag runs through there is the notes liquid pipe, the top of annotating the liquid pipe is provided with the plug, set up on the inside wall of liquid bag and annotate the intercommunicating pore that the liquid pipe is linked together, be connected through the cotton rope between the inside wall of plug and notes liquid pipe, be connected with on the outer tube housing and annotate the liquid mouth of pipe that the liquid pipe is linked together, when planning to amputate the pathological change, send into whole device through the biopsy pore, hold the handle, annotate the liquid pipe through push-and-pull subassembly, ejecting liquid bag, make the liquid bag deviate from the outer tube housing, magnetic fluid that will dispose pours into the liquid bag, make its diameter sufficient to pull-down push-and-pull subassembly make annotate the liquid pipe reset, the liquid bag stays in the position of planning to draw because of being full of state card in the upper end of outer tube housing this moment, use sintered neodymium iron boron magnet in vitro, can realize the multi-direction variable drawing to the pathological change tissue, after the pathological change excision, the liquid bag together take out together with the plug on it takes out, convenient operation.

Description

Detachable liquid bag magnetic traction device

Technical Field

The utility model relates to the technical field of medical equipment, the specific field is detachable liquid bag magnetism draw gear.

Background

Endoscopic Submucosal Dissection (ESD) is an advanced treatment means, so that early cancer of gastrointestinal tract, giant flat polyp and submucosal tumor can be resected by a digestive endoscope at one time. The endoscope is entered from the mouth or anus, and all instruments enter the alimentary canal along with the soft lens canal.

Eradication of the lesion is extremely challenging for the operator. ESD has only one access, it does not expose enough field of view, like endoscopic and direct-view surgery, but leaves enough traction space. The operation is not to cut off the pathological changes simply, and the operation safety is difficult to ensure because a clear operation visual field cannot be reserved without pulling a hook to remove the barrier. The pursuit of better curative effect and better safety in the operation is pursued, and the probability of bleeding and perforation caused by complications is reduced on the basis of accurate excision.

Therefore, ESD urgently needs a proper auxiliary traction technology, and the conventional traction method is mainly used for feeding a tool into an endoscope pipeline on the basis of a soft lens to assist in traction; dual lumen endoscopes have also been specifically designed for ESD. The auxiliary traction makes the operation visual field clear, and simultaneously provides tension, which is beneficial to the smooth excision of pathological changes. However, the existing auxiliary traction technology has the problems that tools are multiple, an endoscope needs to be repeatedly withdrawn and re-entered, and the steps are complicated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a detachable liquid bag magnetism draw gear to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a detachable liquid bag magnetic traction device comprises an outer pipe sleeve, wherein the top end of the outer pipe sleeve is of an open structure, a liquid bag is arranged at the top end in the outer pipe sleeve, a liquid injection pipe penetrates through the inner side of the liquid bag, a rubber plug is arranged at the top end of the liquid injection pipe, a communication hole communicated with a connector of the liquid injection pipe is formed in the inner side wall of the liquid bag, the rubber plug is connected with the inner side wall of the liquid injection pipe through a cord, a liquid injection pipe opening communicated with the liquid injection pipe is connected onto the outer pipe sleeve, a syringe is connected with the liquid injection pipe opening, magnetic liquid which is completely prepared is injected into the liquid bag through the liquid injection pipe opening and the liquid injection pipe, the liquid bag is in a filling state, a handle is arranged at the bottom end of the outer pipe sleeve of the liquid injection pipe, a push-pull assembly connected with the bottom end of the liquid injection pipe is arranged on the handle, and when pathological changes are to be cut, the whole device is fed in through a biopsy hole, the handle is held by a hand, the liquid bag is ejected by pushing the liquid injection pipe of the push-pull assembly upwards, the liquid bag is separated from the outer pipe sleeve, the prepared magnetic liquid is injected into the liquid bag, the diameter of the liquid bag is inflated to 1.0-1.5cm, the push-pull assembly is pulled downwards to reset the liquid injection pipe, the liquid bag is clamped at the upper end of the outer pipe sleeve due to the inflated state and is remained at a part to be dragged, the rubber plug moves downwards along with the liquid injection pipe to block an opening of the liquid bag, other parts except the liquid bag and the rubber plug are outwards pulled, a cord is broken in the pulling process, the rubber plug is separated from the liquid injection pipe, sintered neodymium iron boron magnet is used in vitro, the multidirectional variable traction of lesion tissues can be realized, and after lesions are cut, the liquid bag and the rubber plug on the liquid bag are taken out together with lesions.

Preferably, the sac is connected with a positioning wire ring, the positioning wire ring is arranged to facilitate the positioning of the sac at the traction part, and a hemostatic clamp is arranged from the biopsy hole to clamp the positioning wire ring so as to form movable connection between the sac and the lesion part.

Preferably, the push-pull assembly comprises symmetrically arranged sliding grooves, sliding blocks are connected in the sliding grooves in a sliding mode, the bottom end of the liquid injection pipe is connected with the sliding blocks, pull rings are fixedly connected to the two ends of each sliding block, the push-pull assembly is convenient to control, the forefinger and the middle finger are placed in the pull rings, the pull rings are pushed up and pulled down to drive the sliding blocks to move up and down in the sliding grooves, and therefore the liquid injection pipe is controlled to eject a liquid bag and reset.

Preferably, the lower end of the handle is fixedly connected with a fixing ring matched with the pull ring for use, the fixing ring is further convenient to operate the push-pull assembly, and a thumb is placed in the fixing ring to facilitate the operation of the pull ring by a forefinger and a middle finger.

Preferably, the cotton rope includes main cotton rope, main cotton rope is followed the axial setting of annotating the liquid pipe, main cotton rope's one end with the plug is connected, main cotton rope's the other end is connected with stranded branch cotton rope, stranded branch cotton rope respectively with annotate the inside wall of liquid pipe and be connected, under the exogenic action main cotton rope can with the plug separation, branch cotton rope is the stranded, and it is more stable with being connected of annotating liquid pipe 3 to divide the cotton rope for single strand main line rope, moves down the in-process at the notes liquid pipe, and the main cotton rope fracture separates with the plug, guarantees to separate the smoothness.

Preferably, the number of the thread distribution ropes is at least 2, and the two thread distribution ropes are symmetrically connected to the inner side wall of the liquid injection pipe.

Preferably, the filling material of the liquid sac is ferroferric oxide solution, the liquid sac can be controlled by using sintered neodymium-iron-boron magnets in vitro, multidirectional variable traction can be performed on pathological change tissues, the liquid sac is taken out together with pathological changes after the pathological changes are cut off, and the operation is convenient.

Preferably, under the action of a magnetic field, the external traction magnet attracts the liquid sac through magnetic force to carry out multidirectional adjustable traction.

Compared with the prior art, the beneficial effects of the utility model are that: based on the magnetic anchoring traction method, the device has small diameter, can be adapted to the type of soft lens which is widely used at present, enters and exits through a biopsy pore passage, and enables the liquid injection pipe to drive the liquid sac to extend out and position through the push-pull assembly, thereby avoiding the process of repeated advancing and retreating. After the liquid magnet is fully filled in the liquid bag, the liquid magnet is coupled with the magnetic field of the external magnet, so that traction force with adjustable direction and size is provided for the operation, tissues are pulled, the operation field is exposed, and the smooth completion of the operation is assisted. After the excision is finished, the liquid sac is taken out together with the focus, can not be retained in the body, and enters and exits through the biopsy hole, so that the operation steps are simplified. The internal and external magnetic coupling provides enough traction force for the focus, and the method is timely, noninvasive, simple, convenient and effective. Can effectively assist the operation and shorten the operation time, thereby reducing the occurrence of complications and being beneficial to the postoperative recovery of patients.

Drawings

FIG. 1 is a sectional view of the main structure of the present invention;

FIG. 2 is an enlarged schematic view of the present invention at A in FIG. 1;

fig. 3 is a cross-sectional view of the liquid sac of the present invention in a disengaged state.

In the figure: 1-outer pipe sleeve, 2-liquid bag, 3-liquid injection pipe, 4-rubber plug, 5-communication hole, 6-cord, 601-main cord, 602-cord separation, 7-liquid injection pipe orifice, 8-handle, 9-fixing ring, 10-positioning wire ring, 11-sliding groove, 12-sliding block and 13-pull ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example (b):

referring to fig. 1-3, the present invention provides the following technical solutions: a detachable liquid bag magnetic traction device comprises an outer pipe sleeve 1, wherein the top end of the outer pipe sleeve 1 is of an open structure, a liquid bag 2 is arranged at the inner top end of the outer pipe sleeve 1, a liquid injection pipe 3 penetrates through the inner side of the liquid bag 2, a rubber plug 4 is arranged at the top end of the liquid injection pipe 3, a communication hole 5 communicated with the liquid injection pipe 3 is formed in the inner side wall of the liquid bag 2, the rubber plug 4 is connected with the inner side wall of the liquid injection pipe 3 through a cotton rope 6, a liquid injection pipe orifice 7 communicated with a connector of the liquid injection pipe 3 is connected to the outer pipe sleeve 1, a syringe is connected with the liquid injection pipe orifice 7, magnetic liquid which is completely configured is injected into the liquid bag 2 through the liquid injection pipe orifice 7 and the liquid injection pipe 3, the liquid bag 2 is in a filling state, a handle 8 is arranged at the bottom end of the liquid injection pipe 1, and a push-pull assembly connected with the bottom end of the liquid injection pipe 3 is arranged on the handle 8, when a lesion is to be excised, the whole device is sent into the device through a biopsy pore passage, the handle 8 is held by a hand, the liquid bag 2 is ejected out by pushing up the liquid injection pipe 3 of the push-pull assembly, the liquid bag 2 is separated from the outer sleeve 1, the prepared magnetic liquid is injected into the liquid bag 2, the diameter of the liquid bag 2 is inflated to 1.0-1.5cm, the push-pull assembly is pulled down to reset the liquid injection pipe 3, at the moment, the liquid bag 2 is clamped at the upper end of the outer sleeve 1 in an inflated state and is remained at a position to be drawn, the rubber plug 4 moves down along with the liquid injection pipe 3 to block the opening of the liquid bag 2, other parts except the liquid bag 2 and the rubber plug 4 are drawn out, the thread rope 6 is broken during the drawing process, the rubber plug 4 is separated from the liquid injection pipe 3, and sintered neodymium iron boron magnet is used in vitro, so that the multidirectional variable traction on a lesion tissue can be realized, after the lesion is cut off, the sac 2 with the rubber plug 4 thereon is taken out together with the lesion.

Specifically, a positioning wire ring 10 is connected to the sac 2, the positioning wire ring 10 is provided to facilitate positioning of the sac 2 at a traction portion, and a hemostatic clip is inserted through a biopsy hole to clamp the positioning wire ring 10, thereby movably connecting the sac and a lesion site.

Specifically, the push-pull assembly comprises symmetrically arranged sliding grooves 11, sliding blocks 12 are connected in the sliding grooves 11 in a sliding mode, the bottom end of the liquid injection pipe 3 is connected with the sliding blocks 12, pull rings 13 are fixedly connected to the two ends of the sliding blocks 12, the push-pull assembly is convenient to control, a forefinger and a middle finger are placed in the pull rings 13, the sliding blocks 12 are driven to move up and down in the sliding grooves 11 through pushing up the pull rings 13 and pulling down the pull rings 13, and therefore the liquid injection pipe 3 is controlled to eject the liquid bag 2 and reset.

Specifically, the lower end of the handle 8 is fixedly connected with a fixing ring 9 matched with the pull ring 13 for use, the fixing ring 9 is further convenient for operation of the push-pull assembly, and a thumb is placed in the fixing ring 9 to facilitate operation of the pull ring 13 by a forefinger and a middle finger.

Specifically, the cord 6 includes a main cord 601, the main cord 601 is disposed along the axial direction of the liquid injection tube 3, one end of the main cord 601 is connected to the rubber plug 4, the other end of the main cord 601 is connected to a plurality of branch cords 602, the plurality of branch cords 602 are respectively connected to the inner side wall of the liquid injection tube 3, the main cord 601 can be separated from the rubber plug 4 under the action of external force, the branch cords 602 are a plurality of strands, and are more stable in connection with the liquid injection tube 3 compared to the connection of the branch cords 602 of the single-strand main cord 601, and in the downward movement process of the liquid injection tube 3, the main cord 601 is broken and separated from the rubber plug 4, so that the separation smoothness is ensured.

Specifically, the number of the string distribution wires 602 is at least 2, and the two string distribution wires 602 are symmetrically connected to the inner side wall of the liquid injection tube 3.

Specifically, the liquid sac 2 is filled with ferroferric oxide solution, the sintered neodymium-iron-boron magnet is used in vitro, the control on the liquid sac 2 can be realized, multidirectional variable traction can be performed on pathological change tissues, the liquid sac is taken out together with pathological changes after the pathological changes are cut off, and the operation is convenient.

Specifically, under the action of a magnetic field, the external traction magnet attracts the liquid sac 2 through magnetic force, and multi-directionally adjustable traction is performed.

The working principle is as follows: the disposable magnetic liquid injection device is characterized in that an outer pipe sleeve 1 is arranged, the top end of the outer pipe sleeve 1 is of an open structure, a liquid bag 2 is arranged at the top end in the outer pipe sleeve 1, a liquid injection pipe 3 penetrates through the inner side of the liquid bag 2, a rubber plug 4 is arranged at the top end of the liquid injection pipe 3, a communication hole 5 communicated with the liquid injection pipe 3 is formed in the inner side wall of the liquid bag 2, the rubber plug 4 is connected with the inner side wall of the liquid injection pipe 3 through a cotton rope 6, a liquid injection pipe opening 7 communicated with a connector of the liquid injection pipe 3 is connected to the outer pipe sleeve 1, a syringe is connected with the liquid injection pipe opening 7, the completely prepared magnetic liquid is injected into the liquid bag 2 through the liquid injection pipe opening 7 and the liquid injection pipe 3 to enable the liquid bag 2 to be in a full state, a handle 8 is arranged at the bottom end of the outer pipe sleeve 1 of the liquid injection pipe, a push-pull assembly connected with the bottom end of the liquid injection pipe 3 is arranged on the handle 8, when pathological changes are planned to be removed, the whole device is fed in through a biopsy pore passage, a handle 8 is held by a hand, the liquid bag 2 is ejected out through the liquid injection pipe 3 of the push-pull assembly, the liquid bag 2 is separated from the outer pipe sleeve 1, the interface of the liquid injection pipe 3 is butted with the liquid injection pipe opening 7 at the moment, the liquid injection pipe opening 7 is communicated with the liquid injection pipe opening 7, the prepared magnetic liquid is injected into the liquid bag 2 along the liquid injection pipe opening 7 to ensure that the diameter of the liquid bag 2 is full to 1.0-1.5cm, the liquid injection pipe 3 is reset through the pull-down push-pull assembly, the liquid bag 2 is clamped at the upper end of the outer pipe sleeve 1 in the full state and stays at a position to be drawn, the rubber plug 4 moves downwards along with the liquid injection pipe 3 to block the opening of the liquid bag 2, other components except the liquid bag 2 and the rubber plug 4 are extracted outwards, the thread rope 6 is broken during the extraction process, the rubber plug 4 is separated from the liquid injection pipe 3, and sintered neodymium iron boron magnet is used in vitro, the multi-direction variable traction of the lesion tissue can be realized, and after the lesion is cut off, the liquid sac 2 and the rubber plug 4 on the liquid sac are taken out together with the lesion.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. Detachable liquid bag magnetic traction device, its characterized in that: including outer pipe box (1), top department is provided with liquid bag (2) in outer pipe box (1), the inboard of liquid bag (2) is run through and is had notes liquid pipe (3), the top of annotating liquid pipe (3) is provided with plug (4), set up on the inside wall of liquid bag (2) with annotate intercommunicating pore (5) that liquid pipe (3) are linked together, plug (4) with connect through cotton rope (6) between the inside wall of annotating liquid pipe (3), be connected with on outer pipe box (1) with annotate the liquid mouth of pipe (7) that liquid pipe (3) interface is linked together, the bottom of outer pipe box (1) is provided with handle (8), be provided with on handle (8) with annotate the push-and-pull subassembly that liquid pipe (3) bottom is connected.

2. The detachable liquid bag magnetic traction device according to claim 1, characterized in that: the liquid sac (2) is connected with a positioning wire ring (10).

3. The detachable liquid bag magnetic traction device as claimed in claim 2, wherein: the push-pull assembly comprises symmetrically arranged sliding grooves (11), sliding blocks (12) are connected in the sliding grooves (11) in a sliding mode, the bottom end of the liquid injection pipe (3) is connected with the sliding blocks (12), and pull rings (13) are fixedly connected to the two ends of the sliding blocks (12).

4. The detachable liquid bag magnetic traction device as claimed in claim 3, wherein: the lower end of the handle (8) is fixedly connected with a fixing ring (9) matched with the pull ring (13).

5. A detachable liquid bag magnetic traction device according to any one of claims 1 to 4, characterized in that: the cord (6) comprises a main cord (601), the main cord (601) is arranged along the axial direction of the liquid injection pipe (3), one end of the main cord (601) is connected with the rubber plug (4), the other end of the main cord (601) is connected with a plurality of strand branching cords (602), the plurality of strand branching cords (602) are respectively connected with the inner side wall of the liquid injection pipe (3), and the main cord (601) can be separated from the rubber plug (4) under the action of external force.

6. The detachable liquid bag magnetic traction device according to claim 5, characterized in that: the number of the thread separating ropes (602) is at least 2, and the two thread separating ropes (602) are symmetrically connected to the inner side wall of the liquid injection pipe (3).

7. The detachable liquid bag magnetic traction device of claim 6, characterized in that: the filling material of the liquid bag (2) is ferroferric oxide solution.

8. The detachable liquid bag magnetic traction device of claim 7, characterized in that: under the action of a magnetic field, the external traction magnet attracts the liquid sac (2) through magnetic force to carry out multidirectional adjustable traction.

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