Double-balloon assisted magnetic hydrogel injection device under electromagnet navigation in rectum

Abstract

The utility model relates to the technical field of hydrogel injection, in particular to a double-balloon auxiliary rectum magnetic hydrogel injection device under electromagnet navigation, which comprises a controller and a control knob fixedly mounted on the controller. The gel injection mechanism is arranged in the controller and is used for injecting the magnetic hydrogel into a body; the rectum electromagnetic assembly is arranged in the controller, a magnet is connected to the rectum electromagnetic assembly, and the controller can adjust the deflection angle of the magnet through the rectum electromagnetic assembly; the rubber fixing mechanism is arranged on the rectum electromagnetic assembly and used for keeping the position and the angle of the magnet through the rectum electromagnetic assembly when the rectum electromagnetic assembly and the magnet enter the rectum. Under the action of magnet adsorption, the hydrogel is controlled to move to a designated position, so that the guiding effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water gel injection technical field is a kind of double balloon auxiliary rectal electromagnetic iron navigation under magnetic water gel injection device. BACKGROUND

[0002] Endovascular repair of abdominal aortic aneurysm (EVAR) is a minimally invasive technique for treating abdominal aortic aneurysm. It transplants a stent to the aneurysm site through a guide wire to isolate the aneurysm and prevent it from rupturing. However, during the EVAR procedure for aneurysms involving the iliac artery bifurcation, internal iliac artery embolization is an important step. Traditional embolic materials such as spring coils, embolic microspheres, and occlusion umbrellas are still widely used in internal iliac artery embolization, but more new materials have emerged in recent years, such as liquid embolic agents (such as Onyx and N-buty l cyanoacry l ate) and degradable embolic materials. At the same time, aortic covered stents are used to close the internal iliac artery opening and maintain the patency of the external iliac artery.

[0003] Current embolization techniques require the guide wire to be sent into the internal iliac artery and a catheter access to be established, and then the embolic material is sent in to embolize the internal iliac artery. Anatomically, the internal iliac artery forms an acute angle with the external iliac artery, making it difficult to perform embolization through the ipsilateral femoral artery approach. The contralateral femoral artery approach is also complex. These operations expose the patient and the operating physician to radiation for a longer period of time, prolonging the operation time. Therefore, it is necessary to invent a simple and effective branch embolization device. The existing catheter does not have the function of injecting magnetic water gel.

[0004] Similarly, the gelation of magnetic water gel and the embolization path need to be completed under the action of a magnetic field. However, due to the shape of the internal iliac artery, conventional magnetic navigation devices cannot meet the requirements. Therefore, it is necessary to design a magnetic navigation device according to the shape of the internal iliac artery. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of double balloon auxiliary rectal electromagnetic iron navigation under magnetic water gel injection device to solve the problems raised in the above background technique.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A double balloon auxiliary rectal electromagnetic iron navigation under magnetic water gel injection device, comprising:

[0008] A controller and a control knob fixedly installed on the controller;

[0009] Further comprising:

[0010] A gel injection mechanism is arranged in the controller for injecting magnetic hydrogel into the body;

[0011] A rectal electromagnetic assembly is arranged in the controller, a magnet is connected to the rectal electromagnetic assembly, and the controller can adjust the deflection angle of the magnet through the rectal electromagnetic assembly;

[0012] A rubber fixing mechanism is arranged on the rectal electromagnetic assembly for maintaining the position and angle of the magnet through the rectal electromagnetic assembly when the rectal electromagnetic assembly and the magnet enter the rectum.

[0013] As a further scheme of the utility model, the gel injection mechanism comprises a guide wire fixedly installed on the controller, a gel guide pipe sleeved on the guide wire is also fixed on the controller, and an expansion assembly is arranged on the gel guide pipe.

[0014] As a further scheme of the utility model, the expansion assembly comprises a first balloon and a second balloon fixedly installed on the gel guide pipe, a gel discharge groove is formed on the gel guide pipe, and an air inlet structure is also arranged on the gel guide pipe.

[0015] As a further scheme of the utility model, the air inlet structure comprises a first balloon injection port and a second balloon injection port fixedly installed on the gel guide pipe, and the first balloon injection port and the second balloon injection port are in communication with the gel guide pipe.

[0016] As a further scheme of the utility model, an injection structure is also arranged on the controller, and the injection structure comprises gel injection pipes fixedly installed on the controller and symmetrically arranged.

[0017] As a further scheme of the utility model, the rectal electromagnetic assembly comprises a lead wire connected to the controller, a magnet connecting rod is fixedly connected to the lead wire, symmetrical annular rings are fixed to the magnet connecting rod, a limiting groove is formed on one end of the magnet connecting rod away from the lead wire, and the limiting groove is in rotation connection with the magnet.

[0018] As a further scheme of the utility model, the rubber fixing mechanism comprises a rotating buckle fixedly installed on the magnet connecting rod, a rubber fixing device matched with the rotating buckle is slidingly installed on the magnet connecting rod, and an anti-skid assembly is arranged on the rubber fixing device.

[0019] As a further scheme of the utility model, the anti-skid assembly comprises an annular groove formed on the rubber fixing device, and a plurality of vertical grooves are formed on the rubber fixing device and the rotating buckle at equal intervals in a circumferential direction.

[0020] Compared with the prior art, the application has the beneficial effects that: the application can enrich the magnetic particle gel injected into the patient's body at the required position through the navigation of the magnet, so as to ensure that the treatment effect on the patient is optimal, when the gel injection mechanism is inserted into the patient's body, the rectal electromagnetic assembly can be inserted into the patient's rectum synchronously, and the position of the magnet is locked through the rectal electromagnetic assembly under the action of the rubber fixing mechanism, at this time, the magnetic particle gel can be delivered into the patient's body through the gel injection mechanism, and under the action of the controller, the current delivered to the rectal electromagnetic assembly is adjusted, so as to adjust the angle of the magnet, under the action of the magnetic force of the magnet, the magnetic particle gel will be enriched at the position perpendicular to the magnet rectum, when the enrichment of the magnetic particle gel is completed, the gel injection mechanism and the rectal electromagnetic assembly can be taken out, and under the action of the magnetic force, the effect of navigating the magnetic particle gel is realized. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural schematic view of an embodiment of the double-balloon assisted rectal electromagnetic navigation under magnetic hydrogel injection device.

[0022] Figure 2 It is a structural schematic view of another angle in an embodiment of the double-balloon assisted rectal electromagnetic navigation under magnetic hydrogel injection device.

[0023] Figure 3 It is a structural schematic view of the gel injection mechanism in an embodiment of the double-balloon assisted rectal electromagnetic navigation under magnetic hydrogel injection device.

[0024] Figure 4 It is a partial half-section structural schematic view in an embodiment of the double-balloon assisted rectal electromagnetic navigation under magnetic hydrogel injection device.

[0025] Figure 5 It is a connection relationship schematic view of the rubber fixing mechanism and the rectal electromagnetic assembly in an embodiment of the double-balloon assisted rectal electromagnetic navigation under magnetic hydrogel injection device.

[0026] Figure 6 It is an explosion structural schematic view of the rubber fixing mechanism and the rectal electromagnetic assembly in an embodiment of the double-balloon assisted rectal electromagnetic navigation under magnetic hydrogel injection device.

[0027] Figure 7 It is Figure 6 It is a structural enlarged schematic view of A in the middle.

[0028] In the figure: 1, controller; 2, control knob; 3, gel injection pipe; 4, gel catheter; 5, first balloon injection port; 6, second balloon injection port; 7, first balloon; 8, second balloon; 9, gel discharge groove; 10, guide wire; 11, guide wire; 12, magnet connecting rod; 13, circular ring; 14, limiting groove; 15, magnet; 16, rotating buckle; 17, rubber fixator; 1701, annular groove; 1702, vertical groove. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] In addition, the elements in the utility model are referred to as "fixed to" or "provided with" another element, which can be directly on another element or can have a central element. When an element is considered to be "connected" to another element, it can be directly connected to another element or can have a central element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only implementation.

[0031] Please refer to Figures 1-7 In the embodiments of the utility model, a double-balloon assisted rectal electromagnetic iron navigation magnetic hydrogel injection device comprises:

[0032] A controller 1 and a control knob 2 fixedly installed on the controller 1;

[0033] Further comprising:

[0034] Please refer to Figures 1-4 A gel injection mechanism is arranged in the controller 1 and is used for injecting magnetic hydrogel into the body, the gel injection mechanism comprises a guide wire 10 fixedly installed on the controller 1, the controller 1 further fixedly has a gel catheter 4 sleeved on the guide wire 10, and the gel catheter 4 is provided with an expansion assembly, wherein the expansion assembly comprises a first balloon 7 and a second balloon 8 fixedly installed on the gel catheter 4, the gel catheter 4 is provided with a gel discharge groove 9, and the gel catheter 4 is further provided with an air inlet structure, the air inlet structure mentioned above comprises a first balloon injection port 5 and a second balloon injection port 6 fixedly installed on the gel catheter 4, and the first balloon injection port 5 and the second balloon injection port 6 are in communication with the gel catheter 4.

[0035] In detail, the first balloon 7 and the second balloon 8 can be controlled to open and release independently, which is conducive to forming a stable blood flow environment at the opening of the common iliac artery, and is more conducive to the injection and gelation of the magnetic particle gel. The first balloon injection port 5 and the second balloon injection port 6 are located outside the patient's body, and can be inflated into the first balloon 7 and the second balloon 8, respectively. The gel outlet slot 9 is located between the two balloons. In the initial state, the first balloon 7 and the second balloon 8 are in a contracted state. When it is necessary to inject magnetic particle gel into the patient's body, the guide wire 10 and the gel catheter 4 can be inserted into the patient's common iliac artery. At this time, gas can be introduced into the first balloon 7 and the second balloon 8 through the first balloon injection port 5 and the second balloon injection port 6, respectively, so that the first balloon 7 and the second balloon 8 expand. Under the action of the balloon, the blood flow is terminated. At this time, the magnetic water gel can be injected through the gel catheter 4. When the injection is completed, under the action of the rectal electromagnetic assembly, the magnetic particle gel is guided to the position matched with the rectal electromagnetic assembly. When the magnetic particle gel enrichment is completed, the balloon can be released, and the guide wire 10 and the gel catheter 4 can be taken out.

[0036] Please refer to Figure 1 、 Figure 2 , the controller 1 is also provided with an injection structure, the injection structure includes a gel injection pipe 3 fixedly installed on the controller 1 and symmetrically arranged.

[0037] The gel injection pipe 3 is used to transport the magnetic particle gel, and is connected with the gel catheter 4 through the controller 1. When it is necessary to release the magnetic particle gel into the patient's body, the magnetic particle gel can be transported into the gel catheter 4 through the gel injection pipe 3.

[0038] Please refer to Figure 1 、 Figure 2 、 Figures 5-7 , the rectal electromagnetic assembly is arranged in the controller 1, the rectal electromagnetic assembly is connected with the magnet 15, the controller 1 can adjust the deflection angle of the magnet 15 through the rectal electromagnetic assembly, the rectal electromagnetic assembly includes a wire 11 connected to the controller 1, the wire 11 is fixedly connected with a magnet connecting rod 12, the magnet connecting rod 12 is fixed with a circular ring 13 arranged symmetrically, a limiting groove 14 is formed in one end of the magnet connecting rod 12 away from the wire 11, and the limiting groove 14 is rotatably connected with the magnet 15.

[0039] It is to be noted that two control knobs 2 are installed on the controller 1, one of which is used to control the magnetic field strength of the electromagnet, and the other is used to control the angle of the electromagnet, the controller 1 is connected with the magnet connecting rod 12 in a wired manner, and the wire 11 is connected to the controller 1 in a plug-in manner, when the position of the magnetic particle gel needs to be guided, the circular ring 13 can be held, the magnet connecting rod 12 is inserted into the rectum of the patient, so that the magnet 15 enters the patient's body, the insertion depth is adjusted through the magnet connecting rod 12 and the angle of the magnet 15 is adjusted, and after the magnet position and angle are observed by ultrasound and in place, the magnet connecting rod 12 is fixed at the anus through the rubber fixing mechanism, so as to ensure that the magnet 15 maintains a specific position and angle during the operation, wherein the limiting groove 14 is used to limit the yaw angle of the magnet 15, so as to realize that the yaw angle of the magnet 15 is between -90°-90°, in the initial state, the magnet 15 is in parallel with the magnet connecting rod 12, when the yaw angle of the magnet 15 needs to be adjusted, the current of the wire 11 can be increased, so as to adjust the yaw angle of the magnet 15, so that the magnetic particle gel is enriched in the position perpendicular to the direction of the magnet, when the magnetic particle gel enrichment is completed, the power supply can be turned off, and the rubber fixing mechanism no longer locks the position of the magnet connecting rod 12, so as to take out the magnet connecting rod 12 from the rectum.

[0040] Please refer to Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 , the rubber fixing mechanism is arranged on the rectum electromagnetic assembly, and is used to keep the position and angle of the magnet through the rectum electromagnetic assembly when the rectum electromagnetic assembly and the magnet 15 enter the rectum, the rubber fixing mechanism comprises a rotating buckle 16 fixedly installed on the magnet connecting rod 12, a rubber fixing device 17 matched with the rotating buckle 16 is slidably installed on the magnet connecting rod 12, and an anti-skid assembly is arranged on the rubber fixing device 17, wherein the anti-skid assembly comprises an annular groove 1701 formed in the rubber fixing device 17, and a plurality of vertical grooves 1702 distributed at equal intervals in a circle are formed in the rubber fixing device 17 and the rotating buckle 16 respectively.

[0041] Further, the rotating buckle 16 is used for connecting the rubber fixing device 17, the end of the rotating buckle 16 is provided with a thread, the rubber fixing device 17 is fixed with the rotating buckle 16 through the thread fixing mode, in the initial state, the rotating buckle 16 and the rubber fixing device 17 are in the separated state, at this time, the magnet connecting rod 12 can be automatically inserted into the rectum, when the magnet 15 moves to the required position, at this time, the rubber fixing device 17 can be controlled to move and be tightly connected with the rotating buckle 16 through the rotating mode, wherein, the vertical groove 1702 and the annular groove 1701 are used for increasing the friction force when the rubber fixing device 17 is manually rotated, and are convenient for fixing and preventing rotation at the anus.

[0042] It will be apparent to those skilled in the art that the present application is not limited to the details of the above-exemplified embodiments but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Thus, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the present application being indicated by the appended claims rather than that of the above description, and it is intended to be encompassing of all changes and modifications which fall within the meaning and scope of equivalents of the claims. Any reference signs in the claims should not be construed as limiting the scope of the claims to the identity of the features indicated by the reference signs.

[0043] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A double-balloon assisted rectal electromagnetic navigation under magnetic hydrogel injection device, comprising: a controller (1) and a control knob (2) fixedly installed on the controller (1); characterized in that it further comprises: a gel injection mechanism arranged in the controller (1) for injecting magnetic hydrogel into the body; a rectal electromagnetic assembly arranged in the controller (1), the rectal electromagnetic assembly being connected with a magnet (15), and the controller (1) being capable of adjusting the deflection angle of the magnet (15) through the rectal electromagnetic assembly; a rubber fixing mechanism arranged on the rectal electromagnetic assembly for maintaining the position and angle of the magnet through the rectal electromagnetic assembly when the rectal electromagnetic assembly and the magnet (15) enter the rectum; the gel injection mechanism comprises a guide wire (10) fixedly installed on the controller (1), and the controller (1) is further fixedly provided with a gel catheter (4) sleeved on the guide wire (10), and the gel catheter (4) is provided with an expansion assembly; the expansion assembly comprises a first balloon (7) and a second balloon (8) fixedly installed on the gel catheter (4), and the gel catheter (4) is provided with a gel discharge slot (9) and an air inlet structure; the air inlet structure comprises a first balloon injection port (5) and a second balloon injection port (6) fixedly installed on the gel catheter (4), and the first balloon injection port (5) and the second balloon injection port (6) are in communication with the gel catheter (4); the controller (1) is further provided with an injection structure, and the injection structure comprises gel injection tubes (3) fixedly installed on the controller (1) and symmetrically arranged.

2. The dual-balloon assisted intra-rectal electromagnet navigation under magnetic hydrogel injection device according to claim 1, wherein, the rectal electromagnetic assembly comprises a lead wire (11) connected to the controller (1), the lead wire (11) is fixedly connected with a magnet connecting rod (12), the magnet connecting rod (12) is fixedly provided with a circular ring (13) symmetrically arranged, one end of the magnet connecting rod (12) away from the lead wire (11) is provided with a limiting groove (14), and the limiting groove (14) is rotatably connected with the magnet (15).

3. A dual-balloon assisted intra-rectal electromagnet navigation under magnetic hydrogel injection device according to claim 2, characterized in that, the rubber fixing mechanism comprises a rotating buckle (16) fixedly installed on the magnet connecting rod (12), the magnet connecting rod (12) is slidingly installed with a rubber fixator (17) matched with the rotating buckle (16), and the rubber fixator (17) is provided with an anti-skid assembly.

4. The dual-balloon assisted intra-rectal electromagnet navigation under magnetic hydrogel injection device of claim 3, wherein, the anti-skid assembly comprises an annular groove (1701) formed on the rubber fixator (17), and a plurality of vertical grooves (1702) are formed on the rubber fixator (17) and the rotating buckle (16) respectively and are distributed at equal intervals in a circumferential direction.

Images