Heat dissipation structure of electrode plate, electrode plate assembly for tumor electric field treatment and treatment system

Abstract

The invention relates to the technical field of tumor electric field treatment equipment, in particular to a heat dissipation structure of an electrode plate, an electrode plate assembly for tumor electric field treatment and a treatment system. The heat dissipation structure of the electrode plate comprises a heat dissipation layer used for being attached to an electrode layer of the electrode plate; and the heat dissipation flow channel is formed between the heat dissipation layer and the electrode layer, and an inlet of the heat dissipation flow channel is connected with a heat exchange medium source. According to the technical scheme, the heat dissipation layer is arranged on the electrode layer of the electrode plate to serve as the substrate, the heat dissipation flow channel is formed between the heat dissipation layer and the electrode layer, and the heat exchange medium flowing in the heat dissipation flow channel is used for cooling the electrode plate. From the cooling effect, the electrode layer is directly cooled, the cooling effect is good, and the skin feeling of the electrode plate is improved; from the aspect of structure, the scheme solves the problem that the liquid cooling pipeline is inconvenient to arrange due to the small size of the electrode plate, the pipeline arrangement is simple, and the structure is simple.

Description

Technical Field

[0001] The present application relates to the technical field of electric field therapy equipment for tumors, and in particular to a heat dissipation structure of an electrode sheet, an electrode sheet assembly for electric field therapy for tumors, and a therapy system. Background Art

[0002] There are many technical means to treat tumors, such as surgery, radiotherapy, chemotherapy, molecular targeted therapy, immunotherapy, interventional therapy, etc. These treatment methods have many disadvantages. For example, they need to be treated in a specific place and under a specific environment. They may also cause varying degrees of damage to the human body and may even require the placement of drug infusion lines in the human body. Existing treatment methods are difficult to treat, have large side effects, are prone to secondary injuries, and affect normal life.

[0003] At present, tumor electric field therapy has become one of the important research and development directions of tumor treatment due to its advantages such as non-invasiveness, portability, easy operation, and no need for specific environmental requirements. Tumor electric field therapy applies an alternating electric field to the treatment site of the human body, affecting the aggregation of tumor microtubules and preventing spindle formation, thereby inhibiting the mitotic process of cancer cells and inducing apoptosis of cancer cells. Specifically, the existing tumor electric field therapy mainly attaches electrodes to the surface of the patient's body, such as on opposite sides of the treatment site, and applies an alternating electric field to the treatment site through the electrodes on opposite sides, thereby achieving the purpose of tumor treatment.

[0004] The electrode sheet generates heat during operation and easily causes sweating on the skin of the contact area, which reduces the comfort of the treatment process. Due to the small size of the electrode sheet (small surface area and small thickness), it is not convenient to set up a heat dissipation device for active heat dissipation. At present, how to solve the heat dissipation problem of the electrode sheet and improve the comfort of the treatment process is one of the important research directions in this field. Summary of the invention

[0005] The present application aims to provide a heat dissipation structure of an electrode sheet, an electrode sheet for tumor electric field therapy, and a treatment system to solve the heat dissipation problem of the electrode sheet and improve the comfort of the treatment process.

[0006] The embodiment of the present application is implemented as follows:

[0007] In a first aspect, an embodiment of the present application provides a heat dissipation structure of an electrode sheet, which includes:

[0008] A heat dissipation layer, used to be bonded to the electrode layer of the electrode sheet;

[0009] A heat dissipation channel is formed in the heat dissipation layer or between the heat dissipation layer and the electrode layer, and an inlet of the heat dissipation channel is connected to a heat exchange medium source.

[0010] The technical solution provided by the present application is to set a heat dissipation layer on the electrode layer of the electrode sheet, form a heat dissipation channel in the heat dissipation layer or between the heat dissipation layer and the electrode layer, and use the heat exchange medium flowing in the heat dissipation channel to cool the electrode sheet. From the cooling effect point of view, the electrode layer is directly cooled, the cooling effect is better, and the skin feel of the electrode sheet is improved; from the structural point of view, this solution solves the problem that the small size of the electrode sheet makes it inconvenient to lay out the liquid cooling pipeline, and the pipeline layout is simple and the structure is simple.

[0011] In one embodiment of the present application, the heat dissipation layer is arranged on a side of the electrode layer facing away from the skin.

[0012] In the above technical solution, while ensuring heat dissipation, the heat dissipation layer does not affect the electrical coupling between the electrode sheet and the skin.

[0013] In one embodiment of the present application, the heat dissipation layer is arranged inside the electrode layer.

[0014] In the above technical solution, while ensuring heat dissipation, the heat dissipation layer does not affect the electrical coupling between the electrode sheet and the skin.

[0015] In one embodiment of the present application, grooves are formed on the surface or inside of the heat dissipation layer to form the heat dissipation channel.

[0016] In the above technical solution, when grooves are formed on the surface of the heat dissipation channel, the heat exchange medium in the heat dissipation channel is relatively close to the electrode layer, thereby achieving a better heat dissipation effect; when the heat dissipation channel is located inside the heat dissipation layer, the heat dissipation channel is not easily deformed or blocked when it is adhered to the electrode layer.

[0017] In one embodiment of the present application, the heat dissipation layer includes a first layer and a second layer, the first layer has a first surface, the second layer has a second surface, the first surface is bonded to the second surface, and at least one of the first surface and the second surface is grooved to form the heat dissipation channel.

[0018] In the above technical solution, by setting the heat dissipation layer to include two layers including a first layer and a second layer, on the one hand, it is convenient to groove the first surface and / or the second surface, and on the other hand, the heat dissipation channel can be set inside to play a protective role, and the structural strength of the heat dissipation layer can also be improved.

[0019] In one embodiment of the present application, the heat dissipation structure further includes:

[0020] A protruding structure is arranged on a side of the heat dissipation layer facing the electrode layer, and the protruding structure separates the space between the heat dissipation layer and the electrode layer to form the heat dissipation channel.

[0021] In the above technical solution, a heat dissipation channel is formed by providing a protruding structure to separate the space between the heat dissipation layer and the electrode layer, which does not weaken the structural strength of the heat dissipation layer itself and can also serve as a reinforcing rib to improve the structural strength of the heat dissipation layer.

[0022] In one embodiment of the present application, the protrusion structure includes a plurality of convex strips arranged in parallel, and a heat dissipation channel is formed between two convex strips.

[0023] In one embodiment of the present application, the heat dissipation channel includes a first main channel and a plurality of branch channels, the first main channel is connected to one end of the plurality of branch channels, and the first main channel is connected to the heat exchange medium source.

[0024] In the above technical solution, by setting the first main channel, multiple heat dissipation channels are connected to the heat exchange medium source through micro-pipes respectively, and the first main channel is connected to the heat exchange medium source through one pipe, which greatly simplifies the connection structure and reduces the difficulty of operation. At the same time, the cross-sectional size of the pipe used to connect the first main channel and the heat exchange medium source can also be increased accordingly, further reducing the difficulty of operation.

[0025] In one embodiment of the present application, the heat dissipation channel includes a serpentine channel, and one end of the serpentine channel is connected to the heat exchange medium source.

[0026] In the above technical solution, the serpentine flow channel enables the heat exchange medium to flow through the entire surface area of ​​the electrode sheet, taking away as much heat generated by the electrode sheet as possible. At the same time, one end of the serpentine flow channel only needs to be connected to the heat exchange medium source through a micro tube, and the connection operation is relatively easy.

[0027] In one embodiment of the present application, the heat dissipation channel includes a spiral channel, and one end of the spiral channel is connected to the heat exchange medium source.

[0028] In the above technical solution, the spiral flow channel enables the heat exchange medium to flow through the entire surface area of ​​the electrode sheet, taking away as much heat generated by the electrode sheet as possible. At the same time, one end of the spiral flow channel only needs to be connected to the heat exchange medium source through a micro tube, and the connection operation is relatively easy.

[0029] In one embodiment of the present application, the heat dissipation structure further includes:

[0030] The adhesive layer is arranged on the surface of the heat dissipation layer and is used for adhering the heat dissipation layer to the electrode layer.

[0031] In the above technical solution, the adhesive layer enables the heat dissipation layer and the electrode layer to form a stable sealed connection structure.

[0032] In one embodiment of the present application, a groove is formed from the surface of the adhesive layer to the heat dissipation layer to form the heat dissipation channel between the heat dissipation layer and the adhesive layer.

[0033] In the above technical solution, on the one hand, the heat dissipation layer and the electrode layer are sealed and connected, and on the other hand, the heat exchange medium in the heat dissipation channel directly contacts the electrode layer for heat transfer, thereby achieving a better heat dissipation effect.

[0034] In one embodiment of the present application, the outlet of the heat dissipation channel is open to the external environment; or, the outlet of the heat dissipation channel is connected to the heat exchange medium source to form a heat exchange loop.

[0035] In the above technical solution, when the heat exchange medium is an environmentally friendly material with low economic value, it is discharged to the external environment through the outlet of the heat dissipation channel, which can simplify the heat dissipation structure and the overall structure of the electrode sheet; for heat exchange media with high economic value or environmentally unfriendly, the heat exchange medium circulates along the heat exchange loop.

[0036] In one embodiment of the present application, the heat exchange medium source includes a storage mechanism and a power mechanism, the storage mechanism is used to store the heat exchange medium, the storage mechanism is connected end to end with the heat dissipation channel to form a heat exchange loop, and the power mechanism drives the heat exchange medium to flow in the heat exchange loop.

[0037] In the above technical solution, the heat exchange medium circulates in the heat exchange loop, continuously taking away the heat generated by the operation of the electrode sheets.

[0038] In one embodiment of the present application, the heat exchange medium source includes a power mechanism, and the power mechanism is used to deliver air as the heat exchange medium to the inlet of the heat dissipation flow channel.

[0039] In the above technical solution, the cost of the heat exchange medium is low, which facilitates uninterrupted treatment anytime and anywhere.

[0040] In one embodiment of the present application, the heat dissipation structure further includes a temperature monitoring and regulating mechanism for monitoring the temperature of the electrode sheet and regulating the temperature of the heat exchange medium entering the heat dissipation channel of the heat dissipation structure of the electrode sheet.

[0041] In the above technical solution, the temperature of the heat exchange medium can be adjusted according to the ambient temperature and the temperature of the electrode sheet, so that the electrode sheet is at a suitable temperature.

[0042] In a second aspect, an embodiment of the present application provides an electrode sheet for tumor electric field therapy, comprising:

[0043] Dielectric layer;

[0044] Electrode layer;

[0045] The heat dissipation structure of the electrode sheet according to any one of the first aspects, wherein the heat dissipation structure is arranged on the electrode layer.

[0046] Due to the heat dissipation structure in the first aspect, the electrode sheet provided in the present application has a good skin feel, the treatment process is more comfortable, and the patient can easily adhere to the uninterrupted treatment mode, thereby ensuring a better treatment effect.

[0047] In a third aspect, an embodiment of the present application provides a treatment system for tumor electric field therapy, comprising:

[0048] at least one pair of electrode sheets as described in the second aspect; and

[0049] A generator that produces tumor treating electric fields.

[0050] The treatment system for electric field therapy of tumors provided in the present application has a high degree of comfort during the treatment process, and patients can easily adhere to the uninterrupted treatment mode, thereby ensuring a better treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0052] Figure 1 A schematic diagram of a treatment system provided in accordance with an embodiment of the present application;

[0053] Figure 2 A schematic diagram of a treatment system provided in accordance with another embodiment of the present application;

[0054] Figure 3 A schematic diagram of an electrode sheet provided in one embodiment of the present application;

[0055] Figure 4 A schematic diagram of a heat dissipation layer provided in an embodiment of the present application being connected to an electrode layer through an adhesive layer;

[0056] Figure 5 A schematic diagram of a heat dissipation channel formed on an adhesive layer and a heat dissipation layer provided in an embodiment of the present application;

[0057] Figure 6 A schematic diagram of a heat dissipation channel provided in an embodiment of the present application formed inside a heat dissipation layer;

[0058] Figure 7 An exploded view of a heat dissipation layer provided in one embodiment of the present application;

[0059] Figure 8 A schematic diagram of an electrode sheet having a heat dissipation channel inside a heat dissipation layer provided in an embodiment of the present application;

[0060] Fig. 9 An exploded view of a heat dissipation layer provided in another embodiment of the present application;

[0061] Fig.10 A schematic diagram of an electrode sheet having a heat dissipation channel disposed inside a heat dissipation layer provided in another embodiment of the present application;

[0062] Fig.11 A schematic diagram of forming a heat dissipation channel by dividing the space between the heat dissipation layer and the electrode layer by a protruding structure provided in one embodiment of the present application;

[0063] Fig.12 A schematic diagram of a protrusion structure provided in an embodiment of the present application being adhered to a heat dissipation layer through an adhesive layer;

[0064] Fig.13 A schematic diagram of the structure of a heat dissipation channel provided in an embodiment of the present application;

[0065] Fig.14 A schematic diagram of the connection structure between the connecting pipe and the heat dissipation channel provided in one embodiment of the present application;

[0066] Fig.15 A schematic diagram of a connection structure between a connecting pipe and a heat dissipation channel provided in another embodiment of the present application;

[0067] Fig.16 A schematic diagram of a serpentine flow channel provided in one embodiment of the present application;

[0068] Fig.17 A schematic diagram of a spiral flow channel provided in an embodiment of the present application;

[0069] Fig.18 A schematic diagram of an electrode sheet provided in one embodiment of the present application;

[0070] Fig.19 A schematic diagram of an electrode sheet provided in another embodiment of the present application;

[0071] Fig. 20 A schematic diagram of an electrode sheet provided in yet another embodiment of the present application;

[0072] Fig.21 A schematic diagram of an electrode sheet having a heat dissipation channel inside a heat dissipation layer provided in another embodiment of the present application.

[0073] Icon: 1000-treatment system, 100-electrode sheet, 101-dielectric layer, 102-electrode layer, 1021-first electrode layer, 1022-second electrode layer, 103-heat dissipation structure, 201-storage mechanism, 202-power mechanism, 203-air dynamic pump, 1-heat dissipation layer, 11-first layer, 111-first surface, 12-second layer, 121-second surface, 1a-first heat dissipation layer, 1b-second heat dissipation layer, 2-heat dissipation channel, 21-branch channel, 22-first main channel, 23-second main channel, 2a-first heat dissipation channel, 2b-second heat dissipation channel, 3-adhesive layer, 4-protruding structure, 5-connecting pipe, 51-elastic sleeve. DETAILED DESCRIPTION

[0074] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0075] In the description of the present invention, it should be understood that the terms "center", "width", "thickness", "upper", "lower", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0076] In this application, the word "exemplary" is used to mean "serving as an example, illustration, or illustration." Any embodiment described in this application as "exemplary" is not necessarily to be construed as being preferred or advantageous over other embodiments. The following description is given to enable any person skilled in the art to implement and use the invention. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the invention can be implemented without using these specific details. In other instances, well-known structures and processes are not elaborated in detail to avoid obscuring the description of the invention with unnecessary details. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in this application.

[0077] The embodiments of the present application relate to the technical field of tumor electric field therapy, which is a new means of treating cancer. It utilizes the differentiated characteristics that most normal cells are in a dormant phase while tumor cells proliferate rapidly (the electric field distribution in normal cells is uniform, while the electric field distribution in tumor cells is uneven) to apply an alternating electric field of a specific intensity to the human lesion to inhibit tumor cell mitosis, cause tumor cell apoptosis and inhibit tumor growth.

[0078] Electrode sheets are important devices in electric field therapy for tumors. Two or more electrode sheets are attached to the surface of the human body, and an alternating electric field is applied to the treatment site through the two electrode sheets, thereby achieving the purpose of treating the tumor.

[0079] The electrodes will generate heat during operation and easily cause sweating on the skin of the contact area, which will reduce the comfort of the treatment process. In order to improve the discomfort caused by the heating of the electrodes and the sweating of the skin, there are currently many main methods used, such as:

[0080] A semiconductor cooling sheet is arranged on the side of the electrode sheet facing away from the skin. The semiconductor cooling sheet can improve the heat conducted from the electrode sheet to the skin to a certain extent, but the semiconductor cooling sheet will inevitably generate heat while cooling, and the heat dissipation effect is limited.

[0081] When there are multiple electrode sheets, adjacent electrode sheets are spaced apart to facilitate dehumidification and ventilation. This method can reduce the excessive concentration of heat generated by multiple electrode sheets, but it does not fundamentally solve the heat problem, and the area covered by the electrode sheets is still relatively hot.

[0082] There is also a method of cooling by using liquid cooling pipes, but due to the small area and thin thickness of the electrode sheet, the liquid cooling pipes are not easy to connect to the electrode sheet. The liquid cooling pipes are generally arranged around the outer circumference of the electrode sheet. Although it has a certain cooling effect, the pipeline layout is complicated and sometimes may affect the fit of the electrode sheet to the skin.

[0083] The embodiments of the present application provide a heat dissipation structure of an electrode sheet, an electrode sheet for tumor electric field therapy, and a treatment system, which can reduce the temperature of the electrode sheet and solve the heat dissipation problem of the electrode sheet. The structure is simple, does not affect the fit of the electrode sheet to the skin, and can improve the comfort of the treatment process.

[0084] The treatment system includes the aforementioned electrode sheet. The electrode sheet is provided with a heat dissipation structure, and the heat dissipation structure includes a heat exchange medium source, and the heat exchange medium source is used to provide a heat exchange medium for heat dissipation.

[0085] Heat exchange medium refers to a substance used to transfer heat during heat exchange. The heat exchange medium in the embodiment of the present application is a fluid including liquid and gas, such as oil, solution, water, air, etc.

[0086] In some embodiments, Figure 1 As shown, the heat exchange medium source includes a storage mechanism 201 and a power mechanism 202. The storage mechanism 201 is used to store the heat exchange medium. The storage mechanism 201 and the heat dissipation structure 103 of the electrode sheet 100 form a heat exchange loop. The heat exchange medium of the power mechanism 202 flows in the heat exchange loop.

[0087] In some embodiments, air can also be used as a heat exchange medium, such as Figure 2 As shown, the heat exchange medium source includes a power mechanism, wherein the power mechanism may be an air power pump 203, a duct fan, etc., for introducing air into the heat dissipation structure 103 of the electrode sheet 100 to accelerate the air flow to carry away heat.

[0088] In some embodiments, the heat dissipation structure 103 further includes a temperature monitoring and regulating mechanism, which is disposed on a pipeline for circulating a heat exchange medium in the heat dissipation structure 103, and is used to monitor the temperature of the electrode sheet, and to regulate the temperature of the heat exchange medium according to the temperature of the electrode sheet 100, so as to achieve a better heat exchange effect. The temperature regulating mechanism is not shown in the figure, and it can be understood that the temperature regulating mechanism is a mechanism in the prior art that can cool or heat a substance, such as a small semiconductor refrigeration heater or compressor.

[0089] like Figure 3 As shown, the electrode sheet 100 includes an electrode layer 102 , a dielectric layer 101 and a heat dissipation structure 103 . The electrode layer 102 and the dielectric layer 101 are stacked, and the heat dissipation structure 103 is disposed on the electrode layer 102 .

[0090] The electrode layer 102 is made of a conductive material, and the electrode layer 102 is connected to an AC power source to facilitate the input of an AC voltage signal. In some embodiments, the electrode layer 102 can be a thin and flexible metal layer, such as a metal copper foil with a thickness of 0.1 mm to 1 mm, so that the electrode layer 102 is flexible and easy to bend, thereby making the film capacitor bend as a whole and completely close to the skin surface of the human body. It can be understood that the electrode layer 102 can also be made of other metal materials or non-metallic materials, such as metal silver foil or conductive graphite.

[0091] The dielectric layer 101 is made of a dielectric material, which can prevent current from flowing through, thereby preventing the current connected to the electrode layer 102 of the electrode sheet 100 from directly acting on the human body.

[0092] like Figure 3 As shown, the heat dissipation structure 103 of the electrode sheet 100 includes a heat dissipation layer 1 and a heat dissipation channel 2 .

[0093] In the embodiment of the present application, the "heat dissipation channel 2" can be a channel with a width and depth ranging from 1 to 1000 microns or a space with a size of more than 1000 microns for the circulation of heat exchange medium.

[0094] The heat dissipation layer 1 is used to be attached to the electrode layer 102, and the heat dissipation channel 2 is formed between the heat dissipation layer 1 and the electrode layer 102, or the heat dissipation channel 2 is formed on the heat dissipation layer 1. The inlet of the heat dissipation channel 2 is connected to the heat exchange medium source. When the heat exchange medium flows through the heat dissipation channel 2, it takes away the heat transferred from the electrode layer 102, thereby reducing the temperature of the electrode layer 102 and solving the problem of heating of the electrode layer 102.

[0095] By setting a heat dissipation layer 1 on the electrode layer 102 of the electrode sheet 100 to form a heat dissipation channel 2, the electrode sheet 100 is cooled by using the heat exchange medium flowing in the heat dissipation channel 2. Compared with other technical solutions in the technical field to which the present application belongs, the technical solution provided by the present application solves the problem of inconvenience in laying liquid cooling pipelines from a structural point of view, and the pipeline layout and structure are simple; from the perspective of the cooling effect, the electrode sheet 100 will not be cooled while being heated, and the cooling effect is better; from the perspective of the cooling position, the heat generation of the electrode sheet 100 itself can be fundamentally reduced, and the problem of skin heating at the position covered by the electrode sheet 100 can be alleviated.

[0096] It should be noted that the heat dissipation structure 103 in the embodiment of the present application can not only be used for heat dissipation and cooling, but also for heating and heating. For example, in the cold winter, the temperature of the heat exchange medium is adjusted by the temperature regulating mechanism so that the electrode sheet 100 reaches a suitable skin-feeling temperature.

[0097] In some embodiments, the heat dissipation layer 1 can be made of an insulating material, and its insulating performance prevents the electrode sheet 100 from leaking electricity, thereby ensuring the safety of the heat exchange process. The heat dissipation layer 1 is made of an insulating, dense polymer material, such as polyimide or polyester film. In addition, the heat dissipation layer 1 made of insulating material can reduce the influence of the external environment on the heat exchange medium, so that there is a relatively large temperature difference between the heat exchange medium and the electrode layer 102, which is conducive to heat exchange between the heat exchange medium and the electrode layer 102.

[0098] There are many ways to form the heat dissipation channel 2.

[0099] In some embodiments, the heat dissipation channel 2 is formed in the heat dissipation layer 1 .

[0100] Exemplarily, the heat dissipation channel 2 is formed on the surface of the heat dissipation layer 1. Figure 3 As shown, grooves are cut on the surface of the heat dissipation layer 1 to form a heat dissipation channel 2, and the side of the heat dissipation layer 1 having the heat dissipation channel 2 is attached to the electrode layer 102, thereby closing the top surface of the heat dissipation channel 2, so that one end of the heat dissipation channel 2 forms an inlet and the other end forms an outlet for the heat exchange medium to enter and exit.

[0101] There are many ways to bond the heat dissipation layer 1 to the electrode layer 102. For example, the heat dissipation layer 1 is made of a material with a certain degree of viscosity and is adhered to the electrode layer 102 by utilizing its own viscosity. In another example, the heat dissipation layer 1 is wrapped around the electrode layer 102 and tension is used to make the heat dissipation layer 1 and the electrode layer 102 fit tightly together. In another example, an adhesive layer 3 is provided on the surface of the heat dissipation layer 1 and the heat dissipation layer 1 and the electrode layer 102 are bonded by the adhesive layer 3.

[0102] In the embodiment where the heat dissipation layer 1 and the electrode layer 102 are bonded by the adhesive layer 3, as shown in FIG. Figure 4 As shown, the surface of the heat dissipation layer 1 may be grooved to form the heat dissipation channel 2, and then an adhesive layer 3 is laid on the surface of the heat dissipation layer 1 to seal the top surface of the heat dissipation channel 2 and adhere the heat dissipation layer 1 to the electrode layer 102.

[0103] In the embodiment where the heat dissipation layer 1 and the electrode layer 102 are bonded by the adhesive layer 3, as shown in FIG. Figure 5 As shown, after the adhesive layer 3 is provided on the surface of the heat dissipation layer 1, a groove is formed from the surface of the adhesive layer 3 to the heat dissipation layer 1 to form a heat dissipation channel 2 between the heat dissipation layer 1 and the adhesive layer 3. Figure 5 As shown, the height direction of the heat dissipation channel 2 is the same as the thickness direction of the heat dissipation layer 1 and the adhesive layer 3, the height of the heat dissipation channel 2 is greater than the thickness of the adhesive layer 3, and the height of the heat dissipation channel 2 is less than the total thickness of the heat dissipation layer 1 and the adhesive layer 3.

[0104] Exemplarily, the heat dissipation channel 2 may also be formed inside the heat dissipation layer 1. That is, Figure 6 As shown, grooves are formed inside the heat dissipation layer 1 to form heat dissipation channels 2 .

[0105] Specifically, holes are punched inside the heat dissipation layer 1 in a direction parallel to the surface of the heat dissipation layer 1 to form the heat dissipation channels 2 .

[0106] Alternatively, the heat dissipation layer 1 includes a first layer 11 and a second layer 12 , the first layer 11 has a first surface 111 , the second layer 12 has a second surface 121 , the first surfaces 111 are attached to the first surfaces 111 , and at least one of the first surface 111 and the second surface 121 is grooved to form the heat dissipation channel 2 .

[0107] like Figure 7 and Figure 8 As shown, the first surface 111 is grooved to form the heat dissipation channel 2, and the second surface 121 is attached to the first surface 111, which on the one hand closes the heat dissipation channel 2, and on the other hand reinforces the first layer 11 after the groove through the second layer 12, thereby improving the structural strength of the first layer 11, so that the heat dissipation layer 1 is not easily damaged as a whole. Fig.21 As shown, the second surface 121 may be grooved to form the heat dissipation channel 2 , and the first surface 111 may be attached to the second surface 121 .

[0108] like Fig. 9 and Fig.10 As shown, the first surface 111 and the second surface 121 are grooved respectively, and after the first surface 111 and the second surface 121 are attached, the grooves on both sides correspond to each other and form a heat dissipation channel 2. Since the thickness of a single-layer insulating material (such as a polyimide film) is relatively thin, the depth of the groove on one side is relatively shallow, and by setting the heat dissipation layer 1 to include two layers including the first layer 11 and the second layer 12, the structural strength of the heat dissipation layer 1 can be improved, and by grooves are respectively made on the first layer 11 and the second layer 12, the cross-sectional area of ​​the heat dissipation channel 2 synthesized by the two grooves is greatly increased, which can increase the flow rate of the heat exchange medium and effectively improve the heat dissipation effect.

[0109] In the embodiment where the heat dissipation channel 2 is formed inside the heat dissipation layer 1, the adhesive layer 3 can be arranged on any side of the heat dissipation layer 1, that is, on the side of the first layer 11 facing away from the first surface 111, or on the side of the second layer 12 facing away from the second surface 121.

[0110] When the first surface 111 is grooved, and the adhesive layer 3 is disposed on the side of the first layer 11 away from the first surface 111 to connect the electrode layer 102, along the thickness direction of the heat dissipation layer 1, the distance between the heat dissipation channel 2 and the electrode layer 102 is smaller than the distance between the side of the second layer 12 away from the second surface 121 and the heat dissipation channel 2. By such a configuration, the influence of the external temperature on the heat exchange medium can be reduced, and the heat dissipation effect of the heat exchange medium on the electrode sheet 100 can be improved. Similarly, when the second surface 121 is grooved, and the adhesive layer 3 is disposed on the side of the second layer 12 away from the second surface 121 to connect the electrode layer 102, the same effect is also achieved.

[0111] In some embodiments, a space is formed between the heat dissipation layer 1 and the electrode layer 102 , and the heat dissipation channel 2 is formed in the space between the heat dissipation layer 1 and the electrode layer 102 .

[0112] like Fig.11 As shown, the heat dissipation structure 103 further includes a protruding structure 4 , which is disposed on a side of the heat dissipation layer 1 facing the electrode layer 102 , and the protruding structure 4 separates the space between the heat dissipation layer 1 and the electrode layer 102 to form a heat dissipation channel 2 .

[0113] The protruding structure 4 may be integrally formed on the heat dissipation layer 1 , or may be formed and then disposed on the surface of the heat dissipation layer 1 .

[0114] For example, Fig.12As shown, the heat dissipation layer 1 is made of polyimide film, and the protruding structure 4 is made of polyethylene terephthalate. The protruding structure 4 is pasted on the side of the heat dissipation layer 1 facing the electrode layer 102, and then the heat dissipation layer 1 is bonded to the electrode layer 102 so that the protruding structure 4 and the electrode layer 102 are adhered and fixed, so that the protruding structure 4 is used to separate the space between the heat dissipation layer 1 and the electrode layer 102 to form a heat dissipation channel 2.

[0115] In some embodiments, the heat dissipation channel 2 includes a plurality of branch channels 21 arranged in parallel, and the heat exchange medium enters from one end of each branch channel 21 and flows out from the other end. In an embodiment in which the heat dissipation channel 2 is formed in the heat dissipation layer 1, as shown in FIG. Figure 3-Figure 10 As shown, multiple parallel grooves can be opened on the surface of the heat dissipation layer 1 or inside the heat dissipation layer 1 to serve as multiple branch channels 21. In the embodiment where the space between the heat dissipation layer 1 and the electrode layer 102 is separated by the protruding structure 4 to form the heat dissipation channel 2, as shown in FIG. Fig.11 and Fig.12 As shown, the protrusion structure 4 includes a plurality of protrusions which are arranged in parallel, and a branch flow channel 21 is formed between two adjacent protrusions.

[0116] Since each branch channel 21 needs to be connected to the heat exchange medium source respectively, and the cross-sectional area of ​​each branch channel 21 is only tens to hundreds of microns, the heat dissipation structure 103 of each electrode sheet 100 needs to be connected to the heat exchange medium source through multiple micro pipes. The connection operation is relatively complicated, and it is not easy to ensure that the corresponding branch channel 21 of each micro pipe is firmly connected.

[0117] In order to solve the problem of connecting the heat dissipation channel 2 with the heat exchange medium source, the embodiment of the present application provides a technical solution, such as Fig.13 As shown, in addition to the multiple branch channels 21, the heat dissipation channel 2 also includes a first main channel 22, which is arranged at one end of the multiple branch channels 21, and the first main channel 22 is connected to one end of each branch channel 21, and the first main channel 22 is connected to the output port of the heat exchange medium source. By setting the first main channel 22, the connection between multiple micro-pipes and multiple heat dissipation channels 2 is converted into a connection between one pipeline and the first main channel 22, which greatly simplifies the connection structure and reduces the difficulty of operation.

[0118] In some embodiments, Fig.14As shown, the heat dissipation structure 103 also includes a connecting tube 5 and an elastic sleeve 51. The connecting tube 5 is arranged between the heat exchange medium source and the heat dissipation channel 2, and is used to connect the heat exchange medium source and the inlet of the heat dissipation channel 2. The elastic sleeve 51 is sleeved on the outside of the connecting tube 5, and is used to seal the gap between the connecting tube 5 and the inlet of the heat dissipation channel 2. The outer peripheral surface of the elastic sleeve 51 is a conical surface, so as to guide the connecting tube 5 to enter the inlet of the heat dissipation channel 2. After the connecting tube 5 is inserted into the heat dissipation channel 2, the elastic sleeve 51 is elastically squeezed, and the elastic sleeve 51 is kept against the inner wall of the heat dissipation channel 2 to seal the gap between the connecting tube 5 and the heat dissipation channel 2.

[0119] Optionally, the heat dissipation channel 2 includes a first section and a second section that are connected. The inlet of the heat dissipation channel 2 is arranged at an end of the first section away from the second section. The cross-sectional area of ​​the first section is arranged to gradually decrease from the inlet toward the second section. In other words, the inlet of the first section is large and the outlet is small, which serves to guide the connecting pipe 5 to enter. The inner wall of the first section is an inclined surface to guide the connecting pipe 5 to be centrally inserted into the second section, avoiding the connecting pipe 5 from being bent and folded, and avoiding the inner wall of the first section from causing obstruction between the connecting pipe 5 and the second section, thereby ensuring that a smooth flow channel is formed between the internal space of the connecting pipe 5 and the second section.

[0120] Alternatively, if Fig.15 As shown, the other end of the connecting tube 5 for connecting to the inlet of the heat dissipation channel 2 is set as a flat tube. After the flat tube enters the first section, it is gradually deformed under the extrusion of the inner wall of the first section and plugged into the second section. Through the extrusion and shaping effect of the first section, the inner circumference of the flat tube fits the inner wall of the heat dissipation channel 2, which is conducive to the clamping of the flat tube and the heat dissipation channel 2 and improves the connection stability.

[0121] The outlet of the heat dissipation channel 2 may be open, and illustratively, the other end of the plurality of branch channels 21 is open to the outside environment. When the heat exchange medium is an environmentally friendly and economical material, it is discharged to the outside environment through the outlet of the heat dissipation channel 2, which can simplify the overall structure of the heat dissipation structure 103 and the electrode sheet 100. For example, when the heat exchange medium is air, the air is pumped into the inlet of the heat dissipation channel 2 by the air power pump 203, and the air flows in the heat dissipation channel 2 and flows out from the outlet of the heat dissipation channel 2 carrying the absorbed heat.

[0122] The outlet of the heat dissipation channel 2 can also be connected to the heat exchange medium source to form a heat exchange loop. For example, the other ends of the multiple branch channels 21 are respectively connected to the return ports of the heat exchange medium source. Fig.14 As shown, the heat dissipation channel 2 also includes a second main channel 23, which is arranged at the other end of the multiple branch channels 21, and is connected to the other end of each branch channel 21, and is connected to the return port of the heat exchange medium source.

[0123] In other embodiments, the heat dissipation channel 2 may also adopt other structures.

[0124] like Fig.16 As shown, in some embodiments, the heat dissipation channel 2 includes a serpentine channel, one end of which is connected to a heat exchange medium source, and the other end of which is open or connected to a return port of the heat exchange medium source.

[0125] The serpentine flow channel allows the heat exchange medium to flow through the entire surface area of ​​the electrode sheet 100, taking away as much heat as possible from the electrode sheet 100. At the same time, one end of the serpentine flow channel only needs to be connected to the heat exchange medium source through a micro tube, and the connection operation is relatively easy.

[0126] like Fig.17 As shown, in some embodiments, the heat dissipation channel 2 includes a spiral channel, and one end of the spiral channel is connected to a heat exchange medium source.

[0127] The spiral flow channel spirally extends from the edge of the heat dissipation layer 1 to the middle position, so that the two ends of the spiral flow channel are respectively located in the edge area of ​​the heat dissipation layer 1 and the central area of ​​the heat dissipation layer 1, and one end of the two ends is connected to the heat exchange medium source, and the other end of the two ends is open or connected to the return port of the heat exchange medium source. It should be noted that a through hole is set in the central area of ​​the heat dissipation layer 1, and the through hole corresponds to one end of the spiral flow channel located in the central area, so as to facilitate the circulation of the heat exchange medium and connect the heat exchange medium source.

[0128] The spiral flow channel allows the heat exchange medium to flow through the entire surface area of ​​the electrode sheet 100, taking away as much heat as possible from the electrode sheet 100. At the same time, one end of the spiral flow channel only needs to be connected to the heat exchange medium source through a microtube, and the connection operation is relatively easy.

[0129] The above are only some examples of the structure of the heat dissipation channel 2. It can be understood that the channel structure including the above-mentioned serpentine channel and spiral channel can be formed by using the protruding structure 4 to divide the space between the heat dissipation layer 1 and the electrode layer 102.

[0130] The heat dissipation layer 1 provided in the above-mentioned embodiment can be provided in a variety of ways, so that the technical solution of the present application is applicable to electrode sheets 100 of various structures.

[0131] In some embodiments, the heat dissipation layer 1 is disposed on a side of the electrode layer 102 facing away from the skin.

[0132] like Figure 3 As shown, the electrode sheet 100 includes an electrode layer 102 and a dielectric layer 101 , the dielectric layer 101 is closer to the skin than the electrode layer 102 , the heat dissipation layer 1 is arranged on the side of the electrode layer 102 away from the skin, and the heat dissipation channel 2 is arranged between the heat dissipation layer 1 and the electrode layer 102 .

[0133] In some embodiments, the electrode sheet 100 includes two electrode layers 102 and a dielectric layer 101, wherein the dielectric layer 101 is disposed between the two electrode layers 102. For ease of description, the electrode layer 102 relatively far from the skin is referred to as the first electrode layer 1021, and the electrode layer 102 relatively close to the skin is referred to as the second electrode layer 1022, wherein at least one of the surfaces of the first electrode layer 1021 and the second electrode layer 1022 facing away from the skin is provided with a heat dissipation layer 1.

[0134] For example, Fig.18 As shown, the first electrode layer 1021 and the second electrode layer 1022 are both provided with a heat dissipation layer 1 on the side facing away from the skin. For the convenience of description, the heat dissipation layer 1 on the side facing away from the skin of the first electrode layer 1021 is referred to as the first heat dissipation layer 1a, and the heat dissipation layer 1 on the side facing away from the skin of the second electrode layer 1022 is referred to as the second electrode layer 1022. The first heat dissipation layer 1a covers the side of the first electrode layer 1021 facing away from the skin (i.e., the side of the first electrode layer 1021 facing away from the second electrode layer 1022), and a first heat dissipation channel 2a is formed between the first heat dissipation layer 1a and the first electrode layer 1021. The heat dissipation channel 2a is used to dissipate heat for the first electrode layer 1021; the edge of the first heat dissipation layer 1a extends out of the first electrode layer 1021 to form an extended portion, the second heat dissipation layer 1b is connected to the extended portion of the first heat dissipation layer 1a, the second electrode layer 1022 covers the dielectric layer 101 and the edge extends out of the dielectric layer 101 to form an extended portion, the second heat dissipation layer 1b is adhered to the extended portion of the second electrode layer 1022, and a second heat dissipation channel 2b is formed between the second heat dissipation layer 1b and the extended portion of the second electrode layer 1022, and the second heat dissipation channel 2b is used to dissipate heat for the second electrode layer 1022.

[0135] In other embodiments, the heat dissipation layer 1 is disposed inside the electrode layer 102 .

[0136] like Fig.19 As shown, the heat dissipation layer 1 is used as a substrate, metal materials are arranged on both sides of the heat dissipation layer 1, and holes are punched in the heat dissipation layer 1 to connect the metal materials on both sides, so that the heat dissipation layer 1 is located inside the electrode layer 102. When the electrode sheet 100 has two electrode layers 102, any one of the two electrode layers 102 can adopt a structure in which the heat dissipation layer 1 is arranged inside the electrode layer 102.

[0137] The heat dissipation layer 1 mentioned in the present application as being disposed inside the electrode layer 102 means that part or all of the heat dissipation layer 1 is located inside the electrode layer 102 .

[0138] like Fig.19As shown, the heat dissipation layer 1 is entirely located inside the electrode layer 102. Exemplarily, the electrode sheet 100 includes a dielectric layer 101, a first electrode layer 1021, and a second electrode layer 1022, wherein the first electrode layer 1021 is located on the side of the dielectric layer 101 away from the skin, and the second electrode layer 1022 is located on the side of the dielectric layer 101 close to the skin, wherein the heat dissipation layer 1 is provided inside the second electrode layer 1022, and the heat dissipation channel 2 is located between the heat dissipation layer 1 and the second electrode layer 1022, wherein the heat dissipation channel 2 may be located on the side of the heat dissipation layer 1 facing the skin or on the side of the heat dissipation layer 1 away from the skin, and when the heat dissipation channel 2 is located on the side of the heat dissipation layer 1 facing the skin, the skin-felt temperature of the second electrode layer 1022 can be reduced more quickly.

[0139] like Fig. 20 As shown, the heat dissipation layer 1 has an extension portion extending from the inside of the second electrode layer 1022, and the extension portion of the heat dissipation layer 1 is folded and wraps the electrode sheet 100 to form an insulating, dustproof and waterproof packaging structure. Optionally, the extension portion of the heat dissipation layer 1 is folded to cover the side of the first electrode layer 1021 away from the skin, and a heat dissipation channel 2 is provided between the extension portion of the heat dissipation layer 1 and the first electrode layer 1021.

[0140] For the electrode layer 102 (such as Fig.19 and Fig. 20 As for the second electrode layer 1022), when the heat dissipation layer 1 of the heat dissipation structure 103 is arranged inside the electrode layer 102, it has a larger heat dissipation area, which can improve the heat dissipation effect and make the electrode layer 102 on the skin side of the electrode sheet 100 have a suitable and uniform temperature, directly improving the skin feel of the electrode sheet 100 and improving the comfort of the treatment process.

[0141] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the detailed description of other embodiments above, and will not be repeated here.

[0142] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary embodiments of the present application.

[0143] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0144] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more embodiments of the invention, in the above description of the embodiments of this application, multiple features are sometimes combined into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0145] In some embodiments, numbers describing the number of components and attributes are used. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise specified, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may change according to the required features of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of the present application are approximate values, in specific embodiments, the setting of such numerical values ​​is as accurate as possible within the feasible range.

[0146] Each patent, patent application, patent application publication, and other materials, such as articles, books, specifications, publications, documents, etc., cited in this application is hereby incorporated by reference in its entirety, except for application history documents that are inconsistent with or conflicting with the content of this application, and documents that limit the broadest scope of the claims of this application (currently or later attached to this application). It should be noted that if the descriptions, definitions, and / or use of terms in the accompanying materials of this application are inconsistent or conflicting with the content described in this application, the descriptions, definitions, and / or use of terms in this application shall prevail.

Claims

1. A heat dissipation structure of an electrode sheet, characterized in that: include: A heat dissipation layer, used to be bonded to the electrode layer of the electrode sheet; A heat dissipation channel is formed in the heat dissipation layer or between the heat dissipation layer and the electrode layer, and an inlet of the heat dissipation channel is connected to a heat exchange medium source.

2. The heat dissipation structure of the electrode sheet according to claim 1, characterized in that: The heat dissipation layer is arranged on a side of the electrode layer facing away from the skin.

3. The heat dissipation structure of the electrode sheet according to claim 1, characterized in that: The heat dissipation layer is arranged inside the electrode layer.

4. The heat dissipation structure of the electrode sheet according to claim 1, characterized in that: Grooves are formed on the surface or inside of the heat dissipation layer to form the heat dissipation channel.

5. The heat dissipation structure of the electrode sheet according to claim 1, characterized in that: The heat dissipation layer includes a first layer and a second layer, the first layer has a first surface, the second layer has a second surface, the first surface is attached to the second surface, and at least one of the first surface and the second surface is grooved to form the heat dissipation channel.

6. The heat dissipation structure of the electrode sheet according to claim 1, characterized in that: The heat dissipation structure further includes: A protruding structure is arranged on a side of the heat dissipation layer facing the electrode layer, and the protruding structure separates the space between the heat dissipation layer and the electrode layer to form the heat dissipation channel.

7. The heat dissipation structure of the electrode sheet according to claim 6, characterized in that: The protrusion structure includes a plurality of convex strips arranged in parallel, and a heat dissipation channel is formed between two convex strips.

8. The heat dissipation structure of the electrode sheet according to claim 1, characterized in that: The heat dissipation channel includes a first main channel and a plurality of branch channels, the first main channel is communicated with one end of the plurality of branch channels, and the first main channel is connected to the heat exchange medium source.

9. The heat dissipation structure of the electrode sheet according to claim 1, characterized in that: The heat dissipation channel includes a serpentine channel, one end of which is connected to the heat exchange medium source.

10. The heat dissipation structure of the electrode sheet according to claim 1, characterized in that: The heat dissipation channel comprises a spiral channel, and one end of the spiral channel is connected to the heat exchange medium source.

11. The heat dissipation structure of the electrode sheet according to claim 1, characterized in that: The heat dissipation structure further includes: The adhesive layer is arranged on the surface of the heat dissipation layer and is used for adhering the heat dissipation layer to the electrode layer.

12. The heat dissipation structure of the electrode sheet according to claim 11, characterized in that: Grooves are formed from the surface of the adhesive layer to the heat dissipation layer to form the heat dissipation channel between the heat dissipation layer and the adhesive layer.

13. The heat dissipation structure of the electrode sheet according to claim 1, characterized in that: The outlet of the heat dissipation channel is open to the external environment; or, the outlet of the heat dissipation channel is connected to the heat exchange medium source to form a heat exchange loop.

14. The heat dissipation structure of the electrode sheet according to claim 1, characterized in that: The heat exchange medium source includes a storage mechanism and a power mechanism. The storage mechanism is used to store the heat exchange medium. The storage mechanism is connected end to end with the heat dissipation channel to form a heat exchange loop. The power mechanism drives the heat exchange medium to flow in the heat exchange loop.

15. The heat dissipation structure of the electrode sheet according to claim 1, characterized in that: The heat exchange medium source includes a power mechanism, and the power mechanism is used to send air as the heat exchange medium to the inlet of the heat dissipation flow channel.

16. The heat dissipation structure of the electrode sheet according to claim 14 or 15, characterized in that: The heat dissipation structure also includes a temperature monitoring and regulating mechanism for monitoring the temperature of the electrode sheet and regulating the temperature of the heat exchange medium entering the heat dissipation channel of the heat dissipation structure of the electrode sheet.

17. An electrode sheet for electric field therapy of tumors, characterized in that: include: Dielectric layer; Electrode layer; The heat dissipation structure of the electrode sheet according to any one of claims 1 to 16, wherein the heat dissipation structure is arranged on the electrode layer.

18. A therapeutic system for electric field therapy of tumors, characterized in that: include: At least one pair of electrode sheets according to claim 17; and A generator that produces tumor treating electric fields.

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