Balloon stent assembly

Abstract

The embodiment of the utility model discloses a balloon stent assembly which comprises a first balloon, a second balloon and a stent, the first balloon is arranged on one side of the second balloon, the first balloon is connected with the second balloon, and the stent is arranged outside the second balloon in a sleeved mode. The first balloon and the second balloon are both connected with a control device, and the control device is used for controlling the first balloon and the second balloon to expand or contract; when the balloon stent assembly is placed in an ear canal, the control device enables the first balloon to expand so as to expand the ear canal, the second balloon and the stent can move to a target part in the ear canal, and after the second balloon moves to the target part, the control device enables the second balloon to expand so as to expand the ear canal. And the opening module is used for opening the bracket, so that the bracket stays at the target part.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices. Specifically, the utility model relates to a balloon stent assembly. Background Art

[0002] The human ear includes three parts: the outer ear, the middle ear, and the inner ear. Generally, there are problems such as cysts, inflammations, or tumors in the outer ear and middle ear caused by congenital or later interventions. In the face of diseases such as cysts or tumors, doctors generally remove them. After the removal, it is necessary to apply medicine to the surgical site and provide corresponding support to the ear canal to restore the ear canal to its original shape. The existing medicine application and support solutions are to place a stent in the ear canal to support the ear canal and apply medicine to the surgical site.

[0003] Among them, during the process of placing the stent in the ear canal, due to the rugged interior of the ear canal, the stent is likely to come into contact with the ear canal during the placement process, resulting in scratches on the ear canal by the stent.

[0004] Therefore, a new technical solution is needed to solve the above technical problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a new technical solution for a balloon stent assembly.

[0006] According to the first aspect of the utility model, a balloon stent assembly is provided, which includes a first balloon, a second balloon, and a stent. The first balloon is arranged on one side of the second balloon, and the first balloon is connected to the second balloon. The stent is sleeved outside the second balloon;

[0007] Both the first balloon and the second balloon are connected with a control device, and the control device is used to control the inflation or deflation of the first balloon and the second balloon; wherein,

[0008] When the balloon stent assembly is placed in the ear canal, the control device inflates the first balloon to expand the ear canal, and the second balloon and the stent can move to the target position in the ear canal. After the second balloon moves to the target position, the control device inflates the second balloon to open the stent so that the stent stays at the target position.

[0009] Optionally, there is a gap between the first balloon and the second balloon and they are connected through a catheter assembly.

[0010] Optionally, the balloon stent assembly further includes a third balloon, and the third balloon is connected to the side of the second balloon away from the first balloon through a catheter assembly, and the third balloon is communicated with the control device;

[0011] The third balloon is configured to be inflated by the control device to expand the ear canal together with the first balloon when the balloon stent assembly is placed in the ear canal.

[0012] Optionally, when the stent is located at the target site, the control device controls the first balloon, the second balloon, and the third balloon to contract.

[0013] Optionally, when the balloon stent assembly is placed in the ear canal, the diameter of the second balloon is smaller than the diameters of the first balloon and the third balloon.

[0014] Optionally, the catheter assembly includes:

[0015] A first catheter that is connected to the first balloon and in internal communication with the first balloon;

[0016] A second catheter that is connected to the second balloon and in internal communication with the second balloon;

[0017] A third catheter that is connected to the third balloon and in internal communication with the third balloon;

[0018] The second catheter passes through the third balloon and is disposed inside the third catheter, and the first catheter passes through the second balloon and the third balloon and is disposed inside the second catheter.

[0019] Optionally, the first catheter, the second catheter, and the third catheter are all flexible tubes.

[0020] Optionally, the control device is configured to introduce gas or liquid into the first balloon and the second balloon to achieve volume changes of the first balloon and the second balloon.

[0021] Optionally, the stent is a tubular structure having an accommodation space inside, and the first balloon, the second balloon, and the third balloon are sequentially arranged at intervals along the axial direction of the stent.

[0022] Optionally, through holes are provided on the surface of the stent, and the through holes are in communication with the accommodation space.

[0023] One technical effect of the present utility model is:

[0024] The present utility model provides a new balloon stent assembly, including a first balloon, a second balloon and a stent, and the stent is disposed outside the second balloon. Wherein, when the balloon stent assembly needs to be placed in the ear canal, the first balloon drives the second balloon and the stent to move towards the target position, and the ear canal is expanded by controlling the inflation of the first balloon, so that the stent is not easily in contact with the external ear canal, reducing the possibility of the external ear canal being scratched by the stent and improving the safety during the process of the stent moving to the target site.

[0025] Other features and advantages of the present utility model will become clear through the following detailed description of the exemplary embodiments of the present utility model with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings incorporated in and forming a part of this specification illustrate embodiments of the present utility model and, together with the description, are used to explain the principles of the present utility model.

[0027] Figure 1 One of the schematic diagrams of the usage state of the balloon stent assembly provided by the embodiment of the present utility model;

[0028] Figure 2 One of the schematic diagrams of the structure of the balloon stent assembly provided by the embodiment of the present utility model;

[0029] Figure 3 Another schematic diagram of the structure of the balloon stent assembly provided by the embodiment of the present utility model;

[0030] Figure 4 Another schematic diagram of the usage state of the balloon stent assembly provided by the embodiment of the present utility model;

[0031] Figure 5 Another schematic diagram of the usage state of the balloon stent assembly provided by the embodiment of the present utility model.

[0032] DESCRIPTION OF THE REFERENCE NUMERALS:

[0033] 1, first balloon; 2, second balloon; 3, stent; 31, through hole; 4, control device; 5, catheter assembly; 51, first catheter; 52, second catheter; 53, third catheter; 6, third balloon. DETAILED DESCRIPTION

[0034] Now, various exemplary embodiments of the present utility model will be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and values set forth in these embodiments do not limit the scope of the present utility model.

[0035] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way limits the present utility model, its application or use.

[0036] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices shall be regarded as part of the specification.

[0037] In all the examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments may have different values.

[0038] It should be noted that like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0039] Referring to Figures 1-5 , the present utility model discloses a balloon stent assembly, which includes a first balloon 1, a second balloon 2, and a stent 3. The first balloon 1 is disposed on one side of the second balloon 2, and the first balloon 1 is connected to the second balloon 2. The stent 3 is sleeved outside the second balloon 2;

[0040] Both the first balloon 1 and the second balloon 2 are connected to a control device 4, and the control device 4 is used to control the inflation or deflation of the first balloon 1 and the second balloon 2; wherein,

[0041] When the balloon stent assembly is placed into the ear canal, the control device 4 causes the first balloon 1 to inflate to expand the ear canal, and the second balloon 2 and the stent 3 can move to the target site in the ear canal. After the second balloon 2 moves to the target site, the control device 4 causes the second balloon 2 to inflate to open the stent 3 so that the stent 3 stays at the target site.

[0042] Referring to Figure 1 , the balloon stent assembly provided by the present utility model can be applied, for example, in the ear canal to support the ear canal after ear canal surgery. Of course, it can also be applied to positions such as the nasal cavity. The present utility model does not specifically limit the application position of the balloon stent assembly.

[0043] Referring to Figures 2-3 , the balloon stent assembly includes a first balloon 1, a second balloon 2, and a stent 3. Among them, the first balloon 1 is disposed on one side of the second balloon 2, and the first balloon 1 is connected to the second balloon 2. Both the first balloon 1 and the second balloon 2 are connected to a control device 4. The control device 4 is disposed outside the ear canal, and the first balloon 1 is disposed on the side of the second balloon 2 away from the control device 4. The control device 4 is used to control the inflation or deflation of the first balloon 1 and the second balloon 2 to achieve changes in the diameters and volumes of the first balloon 1 and the second balloon 2.

[0044] Refer to Figure 3 , a stent 3 is sleeved outside the second balloon 2. The stent 3 has an accommodation space inside. The second balloon 2 is placed in the accommodation space provided inside the stent 3. When the second balloon 2 expands, the stent 3 can be opened so as to place the stent 3 at the target site. When the second balloon 2 contracts, it is convenient to separate the second balloon 2 from the stent 3 and take out the second balloon 2 from the ear canal.

[0045] Refer to Figure 4 , during the process of placing the balloon stent assembly provided by the present utility model in the ear canal, the first balloon 1 is controlled by the control device 4 to expand so as to expand the ear canal. During this process, the diameter of the second balloon 2 is smaller than that of the first balloon 1. In this way, the first balloon 1 drives the second balloon 2 and the stent 3 to move towards the target site. Since the first balloon 1 expands the ear canal in advance, during the process of the second balloon 2 and the stent 3 entering the ear canal, the stent 3 is not likely to contact the external auditory canal, reducing the possibility of the external auditory canal being scratched by the stent 3 and improving the safety during the process of the stent 3 moving to the target site.

[0046] Refer to Figure 5 , after the second balloon 2 moves to the target site, the second balloon 2 is controlled by the control device 4 to expand so as to open the stent 3, so that the stent 3 contacts the target site and supports the target site. After the stent 3 is expanded, it is left standing for a corresponding period of time according to the actual clinical needs. The standing time is, for example, 1 min - 10 min, so as to realize the stable support of the stent 3 for the external auditory canal.

[0047] After the stent 3 stays at the target site, the first balloon 1 and the second balloon 2 are controlled by the control device 4 to contract, so that the diameters of the first balloon 1 and the second balloon 2 are smaller than those of the stent 3 after expansion, thereby facilitating the removal of the first balloon 1 and the second balloon 2 from the ear canal.

[0048] The present utility model provides a new balloon stent assembly, including a first balloon 1, a second balloon 2 and a stent 3. The stent 3 is arranged outside the second balloon 2. Among them, when it is necessary to place the balloon stent assembly in the ear canal, the first balloon 1 drives the second balloon 2 and the stent 3 to move towards the target position. By controlling the first balloon 1 to expand to expand the ear canal, the stent 3 is not likely to contact the external auditory canal, reducing the possibility of the external auditory canal being scratched by the stent 3 and improving the safety during the process of the stent 3 moving to the target site.

[0049] In the embodiment of the present utility model, a gap is provided between the first balloon 1 and the second balloon 2 and they are connected by a catheter assembly 5.

[0050] Refer to Figure 2, a gap is provided between the first balloon 1 and the second balloon 2, and the first balloon 1 and the second balloon stent 3 are connected by a catheter assembly 5.

[0051] By providing a gap between the first balloon 1 and the second balloon 2, during the process of the first balloon 1 driving the second balloon 2 and the stent 3 towards the target site, the movement process of the first balloon 1 and the stent 3 is more flexible to adapt to different situations in the ear canal.

[0052] In an embodiment of the present invention, the balloon stent assembly further includes a third balloon 6, the third balloon 6 is connected to the side of the second balloon 2 away from the first balloon 1 through a catheter, and the third balloon 6 is communicated with the control device 4;

[0053] The third balloon 6 is configured to expand it through the control device 4 to jointly expand the ear canal with the first balloon 1 when the balloon stent assembly is placed in the ear canal.

[0054] Refer to Figures 2-5 , the balloon stent assembly further includes a third balloon 6, the third balloon 6 is arranged on the side of the second balloon 2 away from the first balloon 1, and the second balloon 2 is located between the first balloon 1 and the third balloon 6. The third balloon 6 is communicated with the control device 4, and the third balloon 6 is arranged on the side of the second balloon 2 close to the control device 4.

[0055] Refer to Figure 4 , the third balloon 6 is configured to control the third balloon 6 and the first balloon 1 to expand when the balloon stent assembly is placed in the ear canal. In an embodiment of the present invention, when the balloon stent assembly is placed in the ear canal, the diameter of the second balloon 2 is smaller than the diameters of the first balloon 1 and the third balloon 6. The first balloon 1 and the third balloon 6 jointly expand the ear canal.

[0056] During the process of placing the balloon stent assembly in the ear canal, the first balloon 1 and the third balloon 6 cooperate to expand the ear canal to achieve that the second balloon 2 and the stent 3 do not contact the ear canal, so as to transport the stent 3 smoothly to the target site, reduce the possibility of the second balloon 2 and the stent 3 contacting the ear canal, and thus reduce the possibility of the stent 3 scratching the ear canal during the movement to the target site.

[0057] In an embodiment of the present invention, when the stent 3 is located at the target site, the control device 4 controls the first balloon 1, the second balloon 2 and the third balloon 6 to contract.

[0058] Refer to Figure 5After the stent 3 is placed at the target site, the control device 4 controls the first balloon 1, the second balloon 2, and the third balloon 6 to contract, so that the diameters of the first balloon 1, the second balloon 2, and the third balloon 6 are smaller than the diameter of the stent 3 after expansion, thereby facilitating the separation of the second balloon 2 from the stent 3 and removing the first balloon 1, the second balloon 2, and the third balloon 6 from the ear canal.

[0059] In the embodiment of the present utility model, the catheter assembly 5 includes:

[0060] A first catheter 51, the first catheter 51 is connected to the first balloon 1 and communicates with the inside of the first balloon 1;

[0061] A second catheter 52, the second catheter 52 is connected to the second balloon 2 and communicates with the inside of the second balloon 2;

[0062] A third catheter 53, the third catheter 53 is connected to the third balloon 6 and communicates with the inside of the third balloon 6;

[0063] The second catheter 52 passes through the third balloon 6 and is disposed inside the third catheter 53, and the first catheter 51 passes through the second balloon 2 and the third balloon 6 and is disposed inside the second catheter 52.

[0064] Refer to Figure 2 , the catheter assembly 5 includes a first catheter 51, a second catheter 52, and a third catheter 53. Among them,

[0065] One end of the first catheter 51 extends outside the ear canal and is connected to the control assembly. The other end of the first catheter 51 passes through the second balloon 2 and the third balloon 6 and is connected to the first balloon 1, and the first catheter 51 communicates with the inside of the first balloon 1. The control assembly passes gas or liquid into the first balloon 1 through the first catheter 51 to realize the volume change of the first balloon 1.

[0066] One end of the second catheter 52 extends outside the ear canal and is connected to the control assembly. The other end of the second catheter 52 passes through the third balloon 6 and is connected to the second balloon 2, and the second catheter 52 communicates with the inside of the second balloon 2. The control assembly passes gas or liquid into the first balloon 1 through the second catheter 52 to realize the volume change of the second balloon 2.

[0067] One end of the third catheter 53 extends outside the ear canal and is connected to the control assembly. The other end of the third catheter 53 is connected to the third balloon 6 and communicates with the inside of the third balloon 6.

[0068] Please continue to refer to Figure 2, the first balloon 1 and the second balloon 2 are connected through the first catheter 51, and the second balloon 2 and the third balloon 6 are connected through the second catheter 52 and the third catheter 53.

[0069] Preferably, as Figure 2 shown, the first catheter 51 is disposed inside the second catheter 52, and the second catheter 52 is disposed inside the third catheter 53. That is to say, the first catheter 51, the second catheter 52, and the third catheter 53 are sleeved and distributed in sequence from the inside to the outside.

[0070] By adopting this structure, it is beneficial to realize the independent volume control of the first balloon 1, the second balloon 2, and the third balloon 6, and it is beneficial to protect and store the pipeline assembly.

[0071] In the embodiment of the present invention, the first catheter 51, the second catheter 52, and the third catheter 53 are all flexible hoses.

[0072] The first catheter 51, the second catheter 52, and the third catheter 53 are, for example, flexible hoses made of rubber materials. By setting the first catheter 51, the second catheter 52, and the third catheter 53 as flexible hoses, it is beneficial to improve the flexibility of the movement of the first balloon 1, the second balloon 2, and the third balloon 6 during the process of placing the balloon stent assembly in the ear canal, and it can reduce the damage of the first catheter 51, the second catheter 52, and the third catheter 53 to the ear canal, and improve the comfort during the placement of the balloon stent assembly.

[0073] In the embodiment of the present invention, the control device 4 is configured to introduce gas or liquid into the first balloon 1 and the second balloon 2 to realize the volume change of the first balloon 1 and the second balloon 2.

[0074] It should be noted that the control device 4 is configured to introduce gas or liquid into the first balloon 1 and the second balloon 2. That is to say, the control device 4 is connected with a gas generator or a liquid conveyor. When the volume of the first balloon 1 and the second balloon 2 needs to be adjusted, the control device 4 controls the gas generator to generate gas, or the control device 4 controls the liquid conveyor to convey liquid, and the gas or liquid enters the inside of the first balloon 1 or the second balloon 2 through the catheter.

[0075] Among them, the gas generator or the liquid conveyor is, for example, a volume-variable container filled with liquid or gas. The volume-variable container is located outside the body, and the volume-variable container is communicated with the catheters of the first balloon 1 and the second balloon 2 through the control device 4.

[0076] When it is necessary to increase the volume or diameter of the first balloon 1 or the second balloon 2, the control device 4 controls the gas or liquid inside the volume-variable container to be squeezed and flows into the inside of the first balloon 1 or the second balloon 2 through the catheter, so that the volume of the first balloon 1 or the second balloon 2 increases.

[0077] When it is necessary to reduce the volume of the first balloon 1 or the second balloon 2, the control device 4 controls the gas or liquid inside the volume-variable container to flow back from the first balloon 1 or the second balloon 2 into the volume-variable container, so that the volume of the first balloon 1 or the second balloon 2 decreases.

[0078] It should be noted that the gas introduced into the first balloon 1 and the second balloon 2 is, for example, air, inert gas, etc., and the liquid introduced into the first balloon 1 and the second balloon 2 is, for example, normal saline.

[0079] Of course, the change in the volume of the third balloon 6 is also achieved by the control device 4 introducing gas or liquid into the third balloon 6 to realize the volume change of the third balloon 6.

[0080] In the embodiment of the present utility model, the stent 3 is a tubular structure with an accommodation space inside, and the first balloon 1, the second balloon 2, and the third balloon 6 are sequentially arranged at intervals along the axial direction of the stent 3.

[0081] Refer to Figures 3-4 , the stent 3 is a tubular structure with an accommodation space inside, and the cross-section of the stent 3 is arranged in a ring shape. The second balloon 2 is placed inside the accommodation space.

[0082] The first balloon 1, the second balloon 2, and the third balloon 6 are sequentially arranged along the axial direction of the stent 3, and there is a gap between two adjacent ones. Preferably, the first balloon 1, the second balloon 2, and the third balloon 6 are coaxially arranged.

[0083] In the embodiment of the present utility model, through holes 31 are provided on the surface of the stent 3, and the through holes 31 communicate with the accommodation space.

[0084] Refer to Figure 3 , the through holes 31 penetrate through the surface of the stent 3, and the through holes 31 communicate with the accommodation space of the stent 3. It should be noted that the shape of the through holes 31 in the present utility model is not limited, and the through holes 31 are, for example, triangular, circular, and polygonal.

[0085] The provision of the through holes 31 in the present utility model can, on the one hand, reduce the self-weight of the stent 3 and improve the comfort of the user wearing the stent 3. On the other hand, during the use of the stent 3, the outer surface of the stent 3 contacts the target part, so the provision of the through holes 31 facilitates drug administration to the target part of the user and improves the convenience of drug administration.

[0086] Although some specific embodiments of the present utility model have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and not for limiting the scope of the present utility model. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present utility model. The scope of the present utility model is defined by the appended claims.

Claims

1. A balloon stent assembly, characterized in that: The invention comprises a first balloon (1), a second balloon (2) and a bracket (3), wherein the first balloon (1) is arranged on one side of the second balloon (2), and the first balloon (1) is connected to the second balloon (2), and the bracket (3) is sleeved on the outside of the second balloon (2); The first balloon (1) and the second balloon (2) are both connected to a control device (4), and the control device (4) is used to control the expansion or contraction of the first balloon (1) and the second balloon (2); wherein: When the balloon-stent assembly is placed in the ear canal, the control device (4) inflates the first balloon (1) to expand the ear canal, and the second balloon (2) and the stent (3) can move to a target location in the ear canal. After the second balloon (2) moves to the target location, the control device (4) inflates the second balloon (2) to open the stent (3), so that the stent (3) stays at the target location. The balloon stent assembly further comprises a third balloon (6), the third balloon (6) being connected to a side of the second balloon (2) away from the first balloon (1) through a catheter assembly (5), and the third balloon (6) being in communication with the control device (4); The third balloon (6) is configured to expand the ear canal together with the first balloon (1) by means of the control device (4) when the balloon support assembly is placed in the ear canal; When the balloon support assembly is placed in the ear canal, the diameter of the second balloon (2) is smaller than the diameters of the first balloon (1) and the third balloon (6).

2. The balloon stent assembly according to claim 1, characterized in that: A gap is provided between the first balloon (1) and the second balloon (2), and the two balloons are connected via a catheter assembly (5).

3. The balloon stent assembly according to claim 1, characterized in that: When the stent (3) is located at the target site, the control device (4) controls the first balloon (1), the second balloon (2) and the third balloon (6) to contract.

4. The balloon stent assembly according to claim 1, characterized in that: The catheter assembly (5) comprises: A first catheter (51), the first catheter (51) being connected to the first balloon (1) and communicating with the interior of the first balloon (1); a second catheter (52), the second catheter (52) being connected to the second balloon (2) and communicating with the interior of the second balloon (2); a third catheter (53), the third catheter (53) being connected to the third balloon (6) and communicating with the interior of the third balloon (6); The second catheter (52) passes through the third balloon (6) and is disposed inside the third catheter (53), and the first catheter (51) passes through the second balloon (2) and the third balloon (6) and is disposed inside the second catheter (52).

5. The balloon stent assembly according to claim 4, characterized in that: The first conduit (51), the second conduit (52) and the third conduit (53) are all hoses.

6. The balloon stent assembly according to claim 1, characterized in that: The control device (4) is configured to introduce gas or liquid into the first balloon (1) and the second balloon (2) to achieve volume changes of the first balloon (1) and the second balloon (2).

7. The balloon stent assembly according to claim 1, characterized in that: The stent (3) is a tubular structure with an internal accommodation space, and the first balloon (1), the second balloon (2) and the third balloon (6) are arranged in sequence and spaced apart along the axial direction of the stent (3).

8. The balloon stent assembly according to claim 7, characterized in that: A through hole (31) is provided on the surface of the bracket (3), and the through hole (31) is communicated with the accommodating space.

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