Ablation balloon and ablation catheter device

Abstract

The utility model discloses an ablation balloon and an ablation catheter device, and relates to the technical field of medical equipment. The ablation balloon specifically comprises a cylindrical balloon and can be expanded to deform; the flexible circuit board is provided with an ablation electrode, the flexible circuit board is wound on the side face of the cylindrical balloon and can be unfolded along with expansion of the cylindrical balloon, and the flexible circuit board is provided with at least one identification assembly; the identification assembly comprises a plurality of identification pieces which are evenly distributed in the circumferential direction of the cylindrical balloon and used for displaying the current length of the flexible circuit board, and identification pieces corresponding to the identification pieces are arranged on the side, away from the cylindrical balloon, of the back face of the flexible circuit board. The expansion volume of the balloon is accurately controlled, and the flexible electrode on the balloon is prevented from damaging the inner tissue.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an ablation balloon and an ablation catheter device. Background Art

[0002] Natural Orifice Transluminal Endoscopic Surgery (NOTES) is a minimally invasive endoscopic surgical technique that uses an endoscope and other auxiliary instruments to enter the body cavity, such as the abdominal cavity or thoracic cavity, through a natural cavity, and then ablate or surgically treat the lesion. The advantage of this technique is that it avoids the large incision required for traditional surgery, thereby reducing surgical trauma, postoperative pain, and recovery time.

[0003] The commonly used solution at present is to use expandable flexible sheet electrodes, which are supported by expandable devices such as balloons, so that the ablation electrodes are close to the tissue wall and release ablation energy. Since the natural cavity walls of the human body are usually very thin, such as the duodenal wall, which is only 3 to 5 mm, if it is ablated, the release of energy needs to be precisely controlled so that the energy is only released on the surface part that needs to be ablated to avoid damaging the inner tissue, otherwise it will cause tissue necrosis.

[0004] Therefore, how to accurately control the expansion volume of the balloon and avoid damage to the inner tissue by the flexible electrodes on the balloon has become a technical problem that needs to be solved urgently. Utility Model Content

[0005] The main purpose of the utility model is to provide an ablation balloon and an ablation catheter device, which are intended to accurately control the expansion volume of the balloon and prevent the flexible electrodes on the balloon from damaging the inner tissue.

[0006] In order to achieve the above-mentioned purpose, the utility model provides an ablation balloon, comprising:

[0007] A cylindrical balloon that can expand and deform;

[0008] A flexible circuit board is provided with an ablation electrode, the flexible circuit board is wound on the side of the cylindrical balloon and can be unfolded as the cylindrical balloon expands, and at least one group of identification components is provided on the flexible circuit board, and the identification components include:

[0009] A plurality of identification members are evenly distributed along the circumference of the cylindrical balloon and are used to display the current length of the flexible circuit board. An identification member corresponding to the identification member is provided on the back side of the flexible circuit board away from the cylindrical balloon.

[0010] In one embodiment of the present application, the identification element is one of stripes, dots, and magnetic materials.

[0011] In one embodiment of the present application, the identification components are divided into two groups, namely a first identification component and a second identification component arranged opposite to the first identification component, and the identification parts of the first identification component correspond one to one with the identification parts on the second identification component.

[0012] In one embodiment of the present application, when the flexible circuit board is wound on the side wall of the cylindrical balloon, the length direction of the ablation electrode on the flexible circuit board is parallel to the axial direction of the cylindrical balloon.

[0013] In one embodiment of the present application, when the identification element is a magnetic material, the identification element is a magnetic sensitive device; when the identification element is a stripe or a dot, the identification element is an electrical contact.

[0014] In one embodiment of the present application, one end of the cylindrical balloon is connected to an insertion tube.

[0015] The present application also discloses an ablation catheter device, comprising the ablation balloon as described in any one of the above items.

[0016] With the above technical solution, the deformability of the cylindrical balloon and the bendability of the flexible circuit board enable the device to adapt to cavities of different shapes and sizes, providing a wider range of applications. The arrangement of the identification parts provides an intuitive display of the length of the flexible circuit board, allowing doctors to accurately understand the position and length of the flexible circuit board, improving the safety and effectiveness of the operation. The presence of the identification parts allows doctors to more easily identify and locate the flexible circuit board, accurately control the expansion volume of the balloon, and avoid damage to the inner tissue by the flexible electrodes on the balloon. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0018] Figure 1 This is a schematic structural diagram of the first embodiment of the utility model;

[0019] 10. Cylindrical balloon; 20. Flexible circuit board; 21. Ablation electrode; 22. Identification piece; 23. Identification piece; 30. Insertion tube. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain the utility model and do not constitute a limitation on the utility model.

[0021] like Figure 1 As shown, in order to achieve the above-mentioned purpose, the utility model provides an ablation balloon, comprising:

[0022] The cylindrical balloon 10 can expand and deform;

[0023] A flexible circuit board 20 is provided with an ablation electrode 21. The flexible circuit board 20 is wound on the side of the cylindrical balloon 10 and can be unfolded as the cylindrical balloon 10 expands. The flexible circuit board 20 is provided with at least one group of identification components, and the identification components include:

[0024] A plurality of identification members 22 are evenly distributed along the circumference of the cylindrical balloon 10 for displaying the current length of the flexible circuit board 20 , and an identification member 23 corresponding to the identification member 22 is provided on the back side of the flexible circuit board 20 away from the cylindrical balloon 10 .

[0025] Specifically, the cylindrical balloon 10 is a cylindrical structure made of a flexible material, such as a medical polymer or an elastic material. The cylindrical balloon 10 has a certain expandability and pressure resistance. The diameter and length of the cylindrical balloon 10 can be adjusted according to the surgical requirements. One end of the balloon is connected to an inflation device, a water injection device, etc., and deformation expansion is generated by increasing pressure inside the balloon. For ease of understanding, the present application takes balloon inflation as an example for illustration.

[0026] The flexible circuit board 20 is a thin and soft circuit board composed of a flexible substrate and a conductive material. The flexible circuit board 20 has bending and flexibility to adapt to the curvature and shape of the cavity. The flexible circuit board 20 is arranged with an ablation electrode 21 for releasing ablation energy for treatment. The number and arrangement of the electrodes can be adjusted as needed. In the present application, the length of the flexible circuit board 20 is greater than the circumference of the cylindrical balloon 10 when it is expanded to the maximum, so as to ensure that the flexible circuit board 20 can always be wound on the cylindrical balloon 10.

[0027] The flexible circuit board 20 is wound around the side of the cylindrical balloon 10 to fix it on the balloon. The flexible circuit board 20 is wound around the balloon in a spiral or helical shape. When the balloon is inflated, the flexible circuit board 20 will unfold and fit on the surface of the balloon. The length of the flexible circuit board 20 is greater than the circumference of the cylindrical balloon 10 when it is expanded to the maximum, so as to ensure a close fit with the balloon and prevent the flexible circuit board 20 from falling off.

[0028] A set of marking components is provided on the flexible circuit board 20, which is used to provide visual information about the length of the flexible circuit board 20, so as to facilitate the user to calculate the volume of the balloon and achieve accurate fitting of the ablation electrode 21 to the ablation site. The marking component includes a plurality of marking members 22, which are evenly distributed on the outer surface of the flexible circuit board 20 along the circumferential direction of the cylindrical balloon 10. The marking members 22 can be marking lines, scales or other forms of markings to display the current length of the flexible circuit board 20, so that the doctor can intuitively observe the deployment of the electrode.

[0029] An identification piece 23 corresponding to the identification piece 22 is also provided on the back side of the flexible circuit board 20 away from the balloon. The identification piece 23 is provided at the edge of the flexible circuit board 20. The identification piece 23 can sense the identification piece 22, thereby counting the number of times the identification piece 22 passes. During the balloon expansion process, the flexible circuit board 20 will unfold with the expansion of the balloon. At this time, the identification piece 22 will pass through the identification piece 23. At this time, the identification piece 23 counts the number of identification pieces 22 that have passed. Since the spacing between the two identification pieces 22 is known, it is convenient for the user to accurately obtain the current length of the flexible circuit board 20. The presence of the identification piece 23 helps the user to identify and locate the length of the flexible circuit board 20, thereby judging whether the volume of the current cylindrical balloon 10 meets the requirements, accurately controlling the expansion volume of the balloon, and avoiding damage to the inner tissue by the flexible electrode on the balloon.

[0030] With the above technical solution, the deformability of the cylindrical balloon 10 and the bendability of the flexible circuit board 20 enable the device to adapt to cavities of different shapes and sizes, providing a wider range of applications. The arrangement of the identification member 22 provides an intuitive display of the length of the flexible circuit board 20, allowing the doctor to accurately understand the position and length of the flexible circuit board 20, thereby improving the safety and effectiveness of the operation. The presence of the identification member 23 allows the doctor to more easily identify and locate the flexible circuit board 20, accurately control the expansion volume of the balloon, and avoid damage to the inner tissue by the flexible electrode on the balloon.

[0031] In an embodiment of the present application, the identification element 22 is one of stripes, dots, and magnetic materials.

[0032] By adopting the above technical solution, using stripes, dots or magnetic materials as identification elements 22 can provide intuitive visual information. Doctors can understand the length and expansion of the flexible circuit board 20 by observing these identification elements 22, so as to better control the operation process. Among them, stripes can be used as reference lines, dots can be used as positioning points, and magnetic materials can be used in conjunction with magnetic induction equipment. In this way, doctors can more accurately find and adjust the position of the flexible circuit board 20 during the operation to ensure that it is correctly placed in the target area.

[0033] In one embodiment of the present application, the identification components are divided into two groups, namely a first identification component and a second identification component arranged opposite to the first identification component, and the identification part 22 of the first identification component corresponds to the identification part 22 on the second identification component one by one.

[0034] With the above technical solution, the identification pieces 22 on the first identification component and the second identification component correspond one to one, so that the doctor can clearly understand the positional relationship between them, thereby avoiding the abnormal adjustment of the volume of the cylindrical balloon 10 due to the misalignment of the flexible circuit board 20, and improving the safety during use.

[0035] In one embodiment of the present application, when the flexible circuit board 20 is wound on the side wall of the cylindrical balloon 10 , the length direction of the ablation electrode 21 on the flexible circuit board 20 is parallel to the axial direction of the cylindrical balloon 10 .

[0036] By adopting the above technical solution, the length direction of the ablation electrode 21 is parallel to the axial direction of the cylindrical balloon 10, so that the contact between the ablation electrode 21 and the balloon surface is more uniform. This parallelism helps the ablation electrode 21 to evenly distribute heat energy on the surface of the cylindrical balloon 10, improving the effect and consistency of ablation. At the same time, it ensures that the contact between the ablation electrode 21 and the tissue remains consistent when the balloon rotates or moves. This consistency helps the ablation electrode 21 to evenly cover the target tissue, avoid uneven distribution of heat energy, and improve the comprehensiveness and controllability of ablation.

[0037] In one embodiment of the present application, when the identification element is a magnetic material, the identification element 23 is a magnetic sensitive device; when the identification element is a stripe or a dot, the identification element 23 is an electrical contact.

[0038] By adopting the above technical solution, the magnetic sensor has a high sensitivity to magnetic materials and can quickly and accurately detect and identify magnetic identification parts. The electrical contacts also have a high sensitivity to stripes and dots and can effectively sense and identify these shape features. This high sensitivity helps to ensure reliable identification and accurate matching of the identification part 22.

[0039] In one embodiment of the present application, one end of the cylindrical balloon 10 is connected to an insertion tube 30 .

[0040] With the above technical solution, the insertion tube 30 provides a convenient channel to easily insert the balloon into the target position. The presence of the insertion tube 30 enables the operator to more accurately control the position and deployment of the balloon, thereby improving the accuracy and success rate of the operation.

[0041] The present application also discloses an ablation catheter device, comprising the ablation balloon as described in any one of the above items.

[0042] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. An ablation balloon, characterized in that: include: A cylindrical balloon (10) capable of expanding and deforming; A flexible circuit board (20) is provided with an ablation electrode (21), the flexible circuit board (20) is wound on the side of the cylindrical balloon (10), and can be unfolded as the cylindrical balloon (10) expands, and at least one group of identification components is provided on the flexible circuit board (20), and the identification components include: A plurality of identification pieces (22) are evenly distributed along the circumferential direction of the cylindrical balloon (10) and are used to display the current length of the flexible circuit board (20); and an identification piece (23) corresponding to the identification piece (22) is provided on the back side of the flexible circuit board (20) away from the cylindrical balloon (10).

2. The ablation balloon according to claim 1, characterized in that: The identification element (22) is one of stripes, dots, and magnetic materials.

3. The ablation balloon according to claim 1, characterized in that: The identification components are divided into two groups, namely a first identification component and a second identification component arranged opposite to the first identification component, and the identification piece (22) of the first identification component corresponds to the identification piece (22) on the second identification component.

4. The ablation balloon according to claim 1, characterized in that: When the flexible circuit board (20) is wound on the side wall of the cylindrical balloon (10), the length direction of the ablation electrode (21) on the flexible circuit board (20) and the axial direction of the cylindrical balloon (10) are parallel to each other.

5. The ablation balloon according to claim 2, characterized in that: When the identification element is a magnetic material, the identification element (23) is a magnetic sensitive device; when the identification element is a stripe or a dot, the identification element (23) is an electrical contact.

6. The ablation balloon according to claim 1, characterized in that: One end of the cylindrical balloon (10) is connected to an insertion tube (30).

7. An ablation catheter device, characterized in that: Comprising the ablation balloon as described in any one of claims 1 to 6.

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