Electrode patch and tumor electric field treatment equipment

Abstract

The utility model provides an electrode patch and tumor electric field treatment equipment, the electrode patch comprises an electrical function assembly with a plurality of electrode units arranged at intervals and a plurality of pasting pieces completely covering the corresponding electrode units, and a plurality of second open spaces are formed among the pasting pieces; the adjacent pasting pieces are arranged in a spaced mode so that when the electrode patch is replaced, the pasting piece of the replaced electrode patch can cover the area of the second open space of the replaced electrode patch and partially cover the position covered by the pasting piece of the replaced electrode patch. According to the electrode patch, the covered part before replacement is not covered after replacement, so that the covered part is ventilated, and skin inflammation caused by the fact that the covered part is covered all the time is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to an electrode patch and a tumor electric field treatment device. Background Art

[0002] Currently, the main treatments for tumors include surgery, radiotherapy, and chemotherapy, but all have corresponding disadvantages. For example, radiotherapy and chemotherapy can produce side effects and kill normal cells. Using electric fields to treat tumors is also one of the current research and development frontiers. Tumor electric field therapy is a tumor treatment method that uses a special electric field generator to generate a low-intensity, medium-high-frequency, alternating electric field to interfere with the mitotic process of tumor cells. Studies have shown that electric field therapy is effective in treating diseases such as glioblastoma, non-small cell lung cancer, and malignant pleural mesothelioma. The electric field applied by this treatment method can affect the aggregation of microtubules, prevent spindle formation, inhibit the mitotic process, and induce apoptosis in cancer cells.

[0003] The tumor electric field therapy device used to treat tumors mainly includes an electric field generator and an electrode sheet electrically connected to the electric field generator. The electrode sheet includes a transducer array capable of transmitting an alternating electric field. The transducer array includes a flexible circuit board, an insulating plate fixedly arranged on the side of the flexible circuit board facing away from the skin, and a dielectric element welded to the side of the flexible circuit board facing the skin. In order to better achieve the treatment effect, it is necessary to place the electrode sheet on the skin surface corresponding to the patient's tumor site for a long time to perform alternating electric field tumor treatment. When the alternating electric field is applied to the patient's tumor site through the electrode sheet for a long time for tumor treatment, heat will accumulate on the skin surface, causing sweating and producing water vapor. If the water vapor cannot be discharged in time, it will cause blockage of the sweat glands and hair follicles on the outside of the skin, thereby causing skin erythema, itching, inflammation of the hair follicles, pain, papules and other skin discomfort symptoms.

[0004] Therefore, it is necessary to provide an improved electrode patch and tumor electric field treatment device to overcome the problems existing in the prior art. Utility Model Content

[0005] The present application provides a compact electrode patch and tumor electric field treatment equipment.

[0006] Specifically, the present application is implemented through the following technical solution: an electrode patch, comprising an electrical functional component having a plurality of electrode units arranged in a spaced-apart manner and a plurality of adhesive members that completely cover the corresponding electrode units, a plurality of second open spaces being formed between the plurality of adhesive members, and adjacent adhesive members being arranged in a spaced-apart manner so that when the electrode patch is replaced, the adhesive members of the replaced electrode patch cover both the area of the second open space of the replaced electrode patch and partially cover the position covered by the adhesive members of the replaced electrode patch.

[0007] According to one embodiment of the present invention, the ratio of the area of the overlapping portion covered by the adhesive member of the replaced electrode patch and the corresponding adhesive member of the replaced electrode patch to the total area covered by the adhesive member of the electrode patch before replacement is at least the ratio of the width of the adhesive member and the difference between the intervals between two adjacent adhesive members to the width of the adhesive member.

[0008] According to one embodiment of the present invention, the electrical functional component is provided with 9 electrode units arranged in three rows and three columns, and the ratio of the area of the overlapping portion covered by the adhesive member of the replaced electrode patch and the corresponding adhesive member of the replaced electrode patch to the total area covered by the adhesive member of the electrode patch before replacement is at least 33.3%.

[0009] According to an embodiment of the present invention, the width of the adhesive piece is 27-29 mm, and the interval between two adjacent adhesive pieces is 18 mm.

[0010] According to one embodiment of the present invention, the ratio of the area of the overlapping portion covered by the adhesive member of the replaced electrode patch and the corresponding adhesive member of the replaced electrode patch to the total area covered by the adhesive member of the electrode patch before replacement is at least 66.7%.

[0011] According to an embodiment of the present invention, the width of the adhesive piece is 27-29 mm, and the interval between two adjacent adhesive pieces is 9 mm.

[0012] According to one embodiment of the present invention, the electrical functional component is provided with 13 electrode units arranged in five rows and five columns, wherein the first row and the last row are each provided with two electrode units, and the middle three rows are each provided with three electrode units, and the two electrode units in the first row and the last row are located in the second column and the fourth column, and the middle three rows are located in the first column, the third column and the fifth column.

[0013] According to one embodiment of the present invention, the electrical functional component is provided with 20 electrode units arranged in four rows and six columns, wherein the first row and the last row are each provided with four electrode units, and the two middle rows are each provided with six electrode units; and the first column and the last column are each provided with two electrode units, and the four middle columns are each provided with four electrode units.

[0014] According to an embodiment of the present invention, it further comprises a plurality of support members arranged around the circumference of the corresponding electrode units, the width of the adhesive member is larger than the width of the support member, and the adhesive member completely covers the corresponding support member.

[0015] The present application also provides the following technical solution: a tumor electric field treatment device, comprising an electric field generator and the aforementioned electrode patch electrically connected to the electric field generator.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional assembly diagram of the electrode patch according to the first embodiment of the present application;

[0018] Figure 2 for Figure 1 A top plan view of the electrode patch shown;

[0019] Figure 3 and Figure 1 Similarly, the adhesive piece located above the support was removed to facilitate observation of the support of the electrode patch;

[0020] Figure 4 and Figure 3 Similarly, the support members located around the electrical functional components of the electrode patch are removed to facilitate observation of the electrical functional components of the electrode patch;

[0021] Figure 5 for Figure 1 An exploded perspective view of the electrode patch shown;

[0022] Figure 6 for Figure 5 An exploded perspective view of the electrical functional components of the electrode patch shown;

[0023] Figure 7 for Figure 6 The front wiring diagram of the flexible circuit board of the electrical functional component shown;

[0024] Figure 8 for Figure 6 The back wiring diagram of the flexible circuit board of the electrical functional component shown;

[0025] Figure 9 for Figure 1 Schematic diagram of the position change of the electrode unit when the electrode patch in FIG is replaced with an electrode patch of the same type;

[0026] Figure 10 and Figure 9 Similarly, shown is a schematic diagram of another position change of the electrode unit when the electrode patch is replaced with an electrode patch of the same type.

[0027] Figure 11 is a three-dimensional assembly diagram of an electrode patch according to a second embodiment of the present application;

[0028] Figure 12 for Figure 11 An exploded perspective view of the electrode patch shown;

[0029] Figure 13 for Figure 12 An exploded perspective view of the electrical functional components of the electrode patch shown;

[0030] Figure 14 for Figure 13 A plan view of a flexible circuit board of the illustrated electrical functional component;

[0031] Figure 15 for Figure 11 Schematic diagram of the position change of the electrode unit when the electrode patch in FIG is replaced with an electrode patch of the same type;

[0032] Figure 16 is a three-dimensional exploded view of an electrode patch according to a third embodiment of the present application;

[0033] Figure 17 for Figure 16 An exploded perspective view of the electrode patch shown;

[0034] Figure 18 for Figure 17 An exploded perspective view of the electrical functional components shown;

[0035] Figure 19 for Figure 18 A plan view of a flexible circuit board of the illustrated electrical functional component;

[0036] Figure 20 for Figure 16 Schematic diagram of the position change of the electrode unit when the electrode patch in FIG is replaced with an electrode patch of the same type;

[0037] Figure 21 is a top plan view of an electrode patch according to a fourth embodiment of the present application;

[0038] Figure 22 for Figure 21 Another top plan view of the electrode patch is shown, omitting the adhesive member located on the top side;

[0039] Figure 23 for Figure 21 Schematic diagram of the position change of the electrode unit when the electrode patch in FIG is replaced with an electrode patch of the same type. DETAILED DESCRIPTION

[0040] Exemplary embodiments are described in detail herein, with examples illustrated in the accompanying drawings. When the following description refers to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of devices, systems, apparatus, and methods consistent with certain aspects of the present application.

[0041] The present application provides embodiments of various electrode patches for a tumor electric field therapy device for tumor electric field therapy, wherein each electrode patch is provided with a flexible circuit board, multiple dielectric elements or dielectric layers arranged on the flexible circuit board, and an adhesive covering the dielectric elements or dielectric layers. Each embodiment of the electrode patch is described below.

[0042] First embodiment of the electrode patch

[0043] Figures 1 to 10 Shown is the electrode patch 100 of this embodiment.

[0044] refer to Figures 1 to 9 As shown, electrode patch 100 includes an electrical component 11, a backing 12, several supporting members 13, wires 14 electrically connected to electrical component 11, and several adhesive members 15. Electrical component 11 is adhered to backing 12, and supporting members 13 are adhered to backing 12 in a manner that surrounds electrical component 11. Adhesive members 15 cover corresponding portions of electrical component 11 and supporting members 13. Electrode patch 100 is attached to the patient's head surface corresponding to the tumor site via backing 12. Electrical component 11 applies an alternating electric field to the tumor site, disrupting or preventing mitosis in the patient's tumor cells, thereby achieving the purpose of tumor treatment.

[0045] The electrical functional component 11 includes a plurality of electrode units 110 arranged in an array, a plurality of connecting portions 1112 connecting two adjacent electrode units 110, and a wiring portion 1113 extending laterally from a connecting portion 1112. The electrode units 110 are generally circular sheet-shaped. The connecting portion 1112 includes a first connecting portion 11120 connecting two adjacent electrode units 110 in the same column and a second connecting portion 11121 connecting two adjacent electrode units 110 in the same row. The length of the first connecting portion 11120 is less than the length of the second connecting portion 11121. The wiring portion 1113 is located between two adjacent columns of electrode units 110 and extends laterally from a second connecting portion 11121 away from the electrical functional component 11 to connect to the wire 14. The wiring portion 1113 is arranged perpendicular to the second connecting portion 11121 and is arranged approximately parallel to the first connecting portion 11120. The connection portion 1113 and the adjacent electrode unit 110 are arranged in an interval shape, which can provide a larger operating space for welding between the connection portion 1113 and the wire 14 .

[0046] The backing 12 is provided in a sheet shape and is mainly made of a flexible and breathable insulating material. The backing 12 is a mesh fabric. Specifically, the backing 12 is a mesh non-woven fabric, which has the characteristics of being soft, light, moisture-proof and breathable. Even when applied to the patient's body surface for a long time, the patient's skin surface can still be kept dry. A biocompatible adhesive (not shown) is also coated on the side of the backing 12 facing the patient's body surface for closely adhering the backing 12 to the body surface corresponding to the patient's tumor site. In this embodiment, the backing 12 is generally provided in a rectangular sheet shape. The edge of the backing 12 is provided in a concave-convex shape. The backing 12 has two notches 121 recessed inward from the center of its long side. The notches 121 are aligned with the upper edge of the bony part of the patient's external auditory canal during application. The backing 12 also has a plurality of wings 122 extending outward from its peripheral side for an operator to hold to apply the electrode patch 100 to the body surface corresponding to the patient's tumor site. The backing 12 also has concave corners 123 recessed inward from its four corners to prevent wrinkles from forming when the backing 12 is applied to the body surface corresponding to the tumor site.

[0047] The support member 13 is adhered to the backing 12. A through hole 130 for accommodating the electrode unit 110 is provided through the middle of the support member 13. The dielectric elements 113 of the electrode units 110 in the same column can be surrounded by the same support member 13. The support member 13 can be made of a foam material to ensure the air permeability requirement of the electrode patch 100. In this embodiment, there are three support members 13, which are arranged side by side at intervals and respectively surround the dielectric elements 113 of the electrode units 110 in different columns. The support member 13 is flush with the surface of the electrode unit 110 on the side away from the backing 12. That is, the support member 13 is flush with the surface of the electrode unit 110 facing the adhesive member 15.

[0048] The adhesive member 15 has double-sided adhesiveness. One side of the adhesive member 15 is adhered to the surface of the support member 13 and the electrode unit 110 on the side away from the backing 12. The other side of the adhesive member 15 serves as an application layer, which is applied to the skin surface of the human body to keep the skin surface moist and relieve local pressure. The adhesive member 15 can preferably be a conductive adhesive member to act as a conductive medium. Under the support of the support member 13, the adhesive member 15 has better adhesiveness to the human skin.

[0049] In this embodiment, the electrical function components 11 of the electrode patch 100 include 9 electrode units arranged at intervals, which are arranged in a three-row and three-column matrix and form a roughly "king" shape through the connecting part 1112. Figure 6As shown, the first connection portion 11120 of the connection portion 1112 connects all two adjacent electrode units 110 arranged in a column, and the second connection portion 11121 of the connection portion 1112 connects at least two adjacent electrode units 110 arranged in a row. There is at least one second connection portion 11121 between the electrode units 110 in adjacent columns to achieve electrical connection between the electrode units 110 arranged in each column. All second connection portions 11121 located between two electrode units 110 arranged in a row can be second connection portions 11121 that achieve electrical connection between the two adjacent electrode units 110, or can include second connection portions 11121 that partially achieve electrical connection between the two adjacent electrode units 110 and second connection portions 11121 that only achieve fixed connection but not electrical connection between the two electrode units 110.

[0050] In this embodiment, the wiring portion 1113 is welded to the wire 14 to achieve electrical connection between the electrical functional component 11 and the wire 14. A row of gold fingers 11130 welded to the wire 14 are staggered on the two side surfaces of the wiring portion 1113 away from one end of the second connection portion 11121. The welding point between the wire 14 and the gold fingers 11130 of the wiring portion 1113 is covered with a heat shrink tubing 141. The heat shrink tubing 141 insulates and protects the connection between the wire 14 and the wiring portion 1113 of the electrical functional component 11, and provides support to prevent the connection between the wire 14 and the wiring portion 1113 of the electrical functional component 11 from breaking, while also being dustproof and waterproof. The end of the wire 14 away from the second connection portion 11121 is provided with a plug 142 electrically connected to an electric field generator (not shown). One end of the wire 14 is electrically connected to the gold finger 11130 of the connection portion 1113 ; the other end is electrically connected to the electric field generator (not shown) through the plug 142 to provide the electrode patch 100 with an alternating current signal for tumor treatment during tumor electric field therapy.

[0051] refer to Figures 6 to 8 As shown, the specific structure of the electrode unit 110 is described in detail below. The electrode unit 110 includes a main body 1111 provided at two opposite ends of the connecting portion 1112, an insulating plate 112 provided on the side of the main body 1111 away from the human skin, a dielectric element 113 provided on the side of the main body 1111 facing the human skin, and a temperature sensor 114 optionally provided on the main body 1111 and located on the same side as the dielectric element 113. The main body 1111, the insulating plate 112, and the dielectric element 113 are all circular sheet-shaped structures. The insulating plate 112, the main body 1111, and the dielectric element 113 are provided in a one-to-one correspondence, and the centers of the three are located on the same straight line. In other embodiments, the main body 1111 can also be a strip-shaped structure extending from the end of the connecting portion 1112.

[0052] The main body 1111, insulating plate 112, and dielectric element 113 are all arranged in three rows and three columns. The main body 1111 of the electrode unit 110 arranged in three rows and three columns, the multiple connecting portions 1112 located between two adjacent electrode units 110, and the wiring portion 1113 extending outward from a connecting portion 1112 collectively constitute the flexible circuit board 111 of the electrical functional component 11. From the perspective of the formation of the electrode unit 110, the insulating plate 112 is arranged on the side of the main body 1111 of the flexible circuit board 111 away from the human skin, the dielectric element 113 is arranged on the side of the main body 1111 of the flexible circuit board 111 facing the human skin, and the temperature sensor 114 is optionally arranged on the side of the main body 1111 of the flexible circuit board 111 facing the human skin. The insulating plate 112 and the dielectric element 113 are respectively arranged on opposite sides of the main body 1111 of the flexible circuit board 111. The main body 1111 of the flexible printed circuit board 111 of the electrical functional component 11 is arranged in accordance with the arrangement of the electrode unit 110 of the electrical functional component 11 .

[0053] A conductive plate 1114 is provided on the side of the main body 1111 facing the dielectric element 113. The conductive plate 1114 of the main body 1111 can be completely covered by the dielectric element 113, so that the conductive plate 1114 and the dielectric element 113 can be soldered together by solder 115. The conductive plate 1114 of the main body 1111 includes a plurality of conductive cores 11140 arranged in a centrally symmetrical shape, which can effectively prevent the position of the dielectric element 113 from being shifted due to the stacking of solder 115 during the soldering process. The center of the conductive plate 1114 of the main body 1111 is located on the center line of the main body 1111. The top surfaces of the plurality of conductive cores 11140 of the conductive plate 1114 are located in the same plane, which can avoid the occurrence of cold solder joints with the dielectric element 113 during soldering. The center of the conductive plate 1114 is also located on the center line of the dielectric element 113.

[0054] In this embodiment, the conductive plate 1114 of the same main body 1111 includes four conductive cores 11140 spaced apart and arranged symmetrically around the center. The multi-point spacing of the conductive cores 11140 in the conductive plate 1114 reduces the amount of copper foil used to manufacture the conductive cores 11140, thereby lowering material costs. It also reduces the amount of solder (not shown) used to bond the conductive cores 11140 to the dielectric element 113, further reducing material costs.

[0055] The four conductive cores 11140 of the same conductive disk 1114 all have a petal-shaped structure. Each conductive core 11140 includes an inner arc (unnumbered) and an outer arc (unnumbered) connected end to end. The inner arc (unnumbered) and outer arc (unnumbered) of the conductive core 11140 are arranged axially symmetrically. The inner arc (unnumbered) of each of the four conductive cores 11140 of the same conductive disk 1114 is concave toward the center of the conductive disk 1114. The outer arc (unnumbered) of each of the four conductive cores 11140 of the same conductive disk 1114 is convex away from the center of the conductive disk 1114. The multiple conductive cores 11140 that comprise the conductive disk 1114 are arranged both centrally and axially symmetrically, with each conductive core 11140 also arranged axially symmetrically. This ensures stress balance at each weld point when welding the multiple conductive cores 11140 of the conductive disk 1114 of the main body 1111 to the dielectric element 113, ensuring overall weld balance for the dielectric element 113 and improving weld quality. This prevents imbalanced welding stress from causing tilting of the dielectric element 113, which could weaken and easily break the weld on the side with a larger gap between the dielectric element 113 and the main body 1111. This also prevents impacting the fit of the electrode patch 100. The outer arcs (unnumbered) of the multiple conductive cores 11140 of the same conductive disk 1114 are generally located on the same circumference.

[0056] The insulating plate 112 is made of an insulating material. Preferably, the insulating plate 112 is an epoxy glass cloth laminate. The insulating plate 112 is adhered to the side of the main body 1111 away from the human skin through a sealant (not shown), which can enhance the strength of the main body 1111, provide a flat welding plane for the welding operation between the main body 1111 and the dielectric element 113, and improve the product yield. At the same time, the insulating plate 112 can also isolate the water vapor in the air on the side of the electrode patch 100 away from the skin from contacting the solder 115 located between the main body 1111 and the dielectric element 113, thereby preventing water vapor from corroding the solder 115 between the main body 1111 and the dielectric element 113 and affecting the electrical connection between the main body 1111 and the dielectric element 113.

[0057] The size of the insulating plate 112 is the same as that of the main body 1111 to prevent the sealant (not shown) from creeping to the side of the main body 1111 facing the human skin due to the capillary effect when the insulating plate 112 is adhered to the side of the main body 1111 away from the human skin through the sealant (not shown), thereby affecting the filling of the sealant (not shown) in the gap 116 formed by welding the dielectric element 113 and the main body 1111.

[0058] The dielectric element 113 is made of a high dielectric constant material or a high molecular polymer with dielectric properties. It has the conductive property of hindering the conduction of direct current and allowing alternating current to pass through, which can ensure the safety of the human body. Preferably, the dielectric element 113 is a dielectric ceramic sheet with a dielectric constant of at least greater than 1000. The dielectric element 113 has an annular structure, and a through-hole 1131 is provided in the middle thereof for accommodating the temperature sensor 114. A ring-shaped metal layer (not shown) is attached to the side of the dielectric element 113 facing the main body 1111. A point-to-face welding is formed between the metal layer (not shown) of the dielectric element 113 and the conductive core 11140 of the conductive disk 1114 of the main body 1111, which does not require high welding alignment accuracy and makes welding more convenient. The gap (not shown) formed by welding the dielectric element 113 and the main body 1111 is filled with a sealant (not shown) to protect the solder (not shown) between the dielectric element 113 and the main body 1111, thereby preventing the dielectric element 113 from being affected by external forces and causing the weld to break, thereby preventing the alternating electric field from being applied to the patient's tumor site through the dielectric element 113; at the same time, it can also prevent water vapor in the air from corroding the solder (not shown) between the dielectric element 113 and the main body 1111, thereby affecting the electrical connection between the dielectric element 113 and the main body 1111.

[0059] The outer diameter of the dielectric element 113 is slightly smaller than the diameter of the main body 1111. When the sealant (not shown) is filled, the sealant (not shown) can be filled into the gap between the dielectric element 113 and the main body 1111 along the edge of the main body 1111 located outside the dielectric element 113 through a capillary phenomenon. There are multiple temperature sensors 114, each housed in a corresponding through-hole 1131 of the dielectric element 113. In this embodiment, there are eight temperature sensors 114, each located on the other eight electrode units 110 except the electrode unit 110 in the middle of the middle row. The eight temperature sensors 114 are respectively arranged at the center of the main body 1111 of the corresponding electrode unit 110. The temperature sensor 114 is used to monitor the temperature of the adhesive member 15 on the side of the dielectric element 113 covering the electrical functional component 11 that faces the human skin, and further detect the temperature of the human skin attached to the adhesive member 15. When the temperature detected by the temperature sensor 114 exceeds the upper limit of the human body's safe temperature, the tumor electric field therapy device can promptly reduce or shut down the alternating current transmitted to the electrode patch 100 to avoid low-temperature burns on the human body. The temperature sensor 114 is welded to the main body 1111 and then sealed with a sealant (not shown) to prevent water vapor from corroding the temperature sensor 114 and causing the temperature sensor 114 to fail. The temperature sensor 114 has a signal terminal (not shown) and a ground terminal (not shown). In this embodiment, the temperature sensor 114 is preferably a thermistor. In other embodiments, the specific number of temperature sensors 114 can be set as needed.

[0060] Please focus on Figure 7 and Figure 8 As shown, the conductive traces L of the flexible printed circuit board 111 are layered and embedded within its insulating substrate 1B. These traces include a first conductive trace L1 that connects in series the conductive cores 11140 of all conductive pads 1114 located on the main body 1111; a second conductive trace L2 that connects in series the ground terminals (not shown) of all thermistors 114 located on the main body 1111; and a third conductive trace L3 that connects in parallel the signal terminals (not shown) of all thermistors 114 located on the main body 1111. In this embodiment, the first conductive trace L1 is provided as a single path, connecting in series all the conductive cores 11140 of the conductive pads 1114 located on each main body 1111 and electrically connecting to corresponding gold fingers 11130 exposed from the insulating substrate 1B on the connection portion 1113. The second conductive trace L2 is provided as a single path, connecting in series the ground terminals (not shown) of each thermistor 114 located on each main body 1111. The third conductive trace L3 has multiple paths, each connected to a signal terminal (not shown) of each thermistor 114 located on each main body portion 1111, and connects the signal terminals (not shown) of each thermistor 114 located on each main body portion 1111 in parallel. Specifically, the third conductive trace L3 has eight paths, the same number as the thermistors 14. The first conductive trace L1, the second conductive trace L2, and the third conductive trace L3 are each electrically connected to a corresponding gold finger 11130 of the connection portion 1113.

[0061] From the perspective of the wiring of the conductive traces L, they are arranged in two layers within the insulating substrate 1B of the flexible circuit board 11. The layer closest to the patient's skin is defined as the first layer, and the layer further from the patient's skin is defined as the second layer. The portion between the first and second layers, connecting the corresponding portions of the conductive traces on the first layer to the corresponding portions on the second layer, is defined as the conductive layer. The first conductive trace L1, which connects the conductive cores 11140 of all conductive plates 1114 in series, is located in the first layer and surrounds the second conductive trace L2. The portion of the second conductive trace L2 that connects to the ground terminal (not shown) of the thermistor 114 is located in the first layer. The portion of the second conductive trace L2 that connects to the corresponding gold fingers 11130 of the connection portion 1113 is also located in the first layer. The second conductive trace L2 first connects the portion connected to the ground terminal (not shown) of the thermistor 114 to the corresponding portion on the second layer through a corresponding conductive layer, and then connects the corresponding portion on the second layer to the portion on the first layer and connected to the corresponding gold finger 11130 of the wiring portion 1113 through another corresponding conductive layer, thereby bypassing the first conductive trace L1 surrounding the corresponding portion on the first layer to avoid crossing the first conductive trace L1.

[0062] Each third conductive trace L3 connected to the signal terminal (not shown) of the thermistor 114 includes a portion located on the second layer and electrically connected to the corresponding gold finger 11130 of the connection portion 1113, a portion located on the first layer and connected to the signal terminal (not shown) of the thermistor 114, and a conductive layer connecting the first-layer portion with the second-layer portion. The portion of the second conductive trace L2 located on the second layer is positioned between corresponding portions of multiple third conductive traces L3 on the same layer. The corresponding portion of the second conductive trace L2 located on the second layer is positioned near the connection portion 1113, with three third conductive traces L3 arranged on one side and five third conductive traces L3 arranged on the other side.

[0063] The following combination Figure 5 and Figure 8 The size parameters of the electrode patch 100 are introduced as shown.

[0064] In order to prevent the electrical functional components 11 from overlapping and affecting the treatment effect after the electrode patch 100 is applied to the head, the maximum size of the electrical functional component 11 is based on the average head size of the sampling statistics, which can be suitable for most patients. Ignoring the size of the wiring portion 1113 extending outside the array where the electrode unit 110 is located, all electrode units 110 of the electrical functional component 11 are spaced apart in an area with a maximum of 170mm×100mm and a minimum of 79mm×65mm. The diameter of the electrode unit 110 is at least 21mm. Preferably, the diameter of the electrode unit 110 is 21-22mm, which can take into account the effect of tumor electric field therapy and the adhesion between the electrode patch 100 and the patient's skin. The column spacing of the electrical functional component 11 is at least 1mm and a maximum of 53.5mm; the row spacing is at least 1mm and a maximum of 18.5mm.

[0065] In this embodiment, the row spacing of the electrical functional component 11 is 1.5 mm, and the column spacing is 12 mm. The diameter of the electrode unit 110 is 21 mm. Ignoring the dimension of the wiring portion 1113 extending outside the array where the electrode unit 110 is located, the length of the area where the electrical functional component 11 is located is 87 mm and the width is 66 mm. The length of the connecting portion 1112 is close to the spacing between the two electrode units 110 it connects. There will be a certain amount of overlap in the length dimension of the connecting portion 1112 and the edge connection of the electrode unit 110, so the length dimension of the connecting portion 1112 is slightly larger than the spacing between the two electrode units 110 it connects. The length of the first connecting portion 11120 is approximately 12.7 mm, and the length of the second connecting portion 11121 is approximately 2.1 mm.

[0066] The electrical functional component 11 has nine electrode units 110 arranged in a matrix of three rows and three columns, each of which has a first open space 118 between the electrode units 110. This allows the skin on the patient's tumor site, which is covered by the electrode patch 100, to breathe freely after the electrode patch 100 is placed on the patient's tumor site. In this embodiment, there are four first open spaces 118 in the electrical functional component 11, each located within an area enclosed by four electrode units 110 in adjacent columns and rows. The width of the connecting portion 1112 is 4.5-6 mm, which can be determined based on wiring requirements and manufacturing costs, such as ensuring sufficient first open spaces 118 between the electrode units 110 to facilitate heat and water vapor dissipation. Preferably, the width of the connecting portion 1112 is 4.5 mm, so that the wiring design is sufficient and there is a first open space 118 of sufficient area between the electrode units 110 to facilitate heat and water vapor dissipation.

[0067] The wiring portion 1113 is extended laterally from the connecting portion 1112 and is partially located in one of the first open spaces 118 to shorten the distance that the wiring portion 1113 exceeds the edge of the electrical functional component 11, so that the electrical functional component 11 is arranged more compactly, and the manufacturing cost is increased by increasing the overall size of the electrical functional component 11. The width of the wiring portion 1113 is at least 4 mm. Preferably, the width of the wiring portion 1113 is 4-8 mm. The width of the wiring portion 1113 is 8 mm, and the distance from the edge of the main body 111 on both sides thereof is 8 mm each, so as to provide sufficient wiring space and reduce the difficulty of manufacturing. The maximum available ventilation area of the first open space 118 for the wiring portion 1113 to pass through is approximately 2809 mm 2 , the minimum area is about 196mm 2 The maximum area of each of the remaining three first open spaces 118 is approximately 3000 mm 2 The minimum area is about 314mm 2 The distance between the connecting portion 1113 and the adjacent electrode units 110 is at least 2 mm. That is, the distance between the two columns of electrode units 110 on both sides of the connecting portion 1113 is at least 8 mm.

[0068] The support member 13 is a rectangular sheet with rounded corners and a through hole 130 in the middle. It is arranged around the three dielectric elements 113 in the same row. The side of the support member 13 facing away from the patient's skin is directly adhered to the backing 12, and the portion located between two adjacent rows of dielectric elements 113 extends into the first open space 118. The adhesive member 15 is a rectangular sheet with rounded corners and covers the support member 13 as a whole. The length and width of the adhesive member 15 are slightly larger than those of the support member 13. The portion of the adhesive member 15 that is larger than the support member 13 just covers the side of the support member 13. That is, the adhesive member 15 has a portion that corresponds to the through hole 130 of the support member 13 and directly covers the side of the dielectric element 113 facing the patient's skin, a portion that covers the side of the support member 13 facing the patient's skin, and a portion that covers the side of the support member 13 in the thickness direction.

[0069] The adhesive member 15 covers the support member 13, and the portion thereof located between two adjacent rows of dielectric elements 113 also extends into the first open space 118. That is, the portion of the adhesive member 15 covering the side of the support member 13 facing the patient's skin and located between two adjacent rows of dielectric elements 113 will occupy a portion of the first open space 118. The portion of the first open space 118 occupied by the adhesive member 15 is the second open space 119. The size of the second open space 119 is slightly smaller than that of the first open space 118, and the portion thereof that is smaller than the corresponding first open space 118 is covered by the adhesive member 15. The second open space 119 is formed by enclosing two adjacent adhesive members 15 and the second connecting portion 11121 of the flexible circuit board 111, allowing the patient's skin to breathe freely and dissipate heat. Since the adhesive 15 has low air permeability, it will affect the efficient air permeability area of the first open space 118. Therefore, when designing the size, the adhesive 15 will be designed to be as narrow as possible under the premise that it can completely cover the part of the support 13 facing the patient's skin and the side of the support 13 along its thickness direction. Similarly, since the adhesive 15 needs to be larger than the length of the support 13, the support 13 also needs to be designed to be as narrow as possible under the premise of providing good support for the adhesive 15, so as to ensure that the area of the second open space 119 that allows the skin to penetrate moisture in the first open space 118 is as large as possible. The following dimensional design approach is recommended: the width of the support member 13 is 1-8 mm larger than the diameter of the dielectric element 113, preferably 5 mm larger. That is, the distance a single support member 13 extends into the first open space 118 along its width is 0.5-4 mm, and the distance two adjacent support members 13 extend into the first open space 118 along the width is 1-8 mm. The flat width of the adhesive member 15 is 2-14 mm larger than the width of the support member 13. Considering that the edge of the adhesive member 15 covers the side end surface of the support member 13 (with a thickness of 1 mm), the width of the adhesive member 15 after covering the support member 13 is 0-12 mm larger than the width of the support member 13. In other words, the distance that the adhesive member 15 extends into the first open space 118 along its width is 0.5-10 mm.

[0070] In this embodiment, the diameter of the dielectric element 113 is 20 mm, the width of the support member 13 is 25 mm, the thickness of the support member 13 is 1 mm, and the width of the adhesive member 15 is 27-29 mm. The length of the adhesive member 15 is slightly longer than the length of the support member 13, which is slightly longer than the total length of the plurality of dielectric elements 113 in a row, without specific limitations. While ensuring their respective functions, the support member 13 and the adhesive member 15 are designed to be as narrow as possible to maximize the area of the second open space 119 to be close to the area of the first open space 118, thereby maximizing the moisture permeability of the first open space 118. It can be understood that the plurality of adhesive members 15 spaced apart form a plurality of the aforementioned second open spaces 119, and the size of the second open spaces 119 is smaller than the size of the first open spaces 118. In this embodiment, the row spacing between two adjacent dielectric elements 113 is 25 mm, the spacing between two adjacent support members 13 is 20 mm, and the spacing between two adjacent adhesive members 15 is 18 mm.

[0071] When the electrode patch 100 is in use, the first open space 118 can conduct heat and evaporate moisture to the skin surface. The backing 12 is made of breathable material and has almost no effect on breathability. Most of the first open space 118 is ventilated and dissipated outward through the completely open second open space 119. The part of the first open space 118 covered by the support 13 and the adhesive 15 absorbs moisture through the support 13 and the adhesive 15. During the tumor electric field therapy process, the heat accumulated on the skin surface corresponding to the patient's electrode patch 100 and the water vapor generated by sweating can be discharged into the outside air through the second open space 119, avoiding skin erythema, itching, and follicular inflammation, pain, papules and other skin discomfort symptoms.

[0072] Combine Figure 9 and Figure 10 As shown, in this embodiment, the diameter of the main body 1111 of the electrical functional component 11 is 21mm, the distance between two adjacent main bodies 111 in the same row, i.e., the column spacing, is 12mm, and the distance between two adjacent main bodies 111 in the same column, i.e., the row spacing, is 1.5mm. In other words, the diameter D11 of the electrode unit 110 of the electrode patch 100 is 21mm, the distance D12 between two adjacent electrode units 110 in the same row is 12mm, and the distance D13 between two adjacent electrode units 110 in the same column is 1.5mm. After using the electrode patch 100 for a period of time, usually after 2-3 days, it needs to be replaced with a new electrode patch. Figure 9Shown are schematic diagrams of the different positions of the electrode units of a used electrode patch 100 and a replacement electrode patch (not shown). The solid line shows the electrode unit 110 of the used electrode patch 100, and the dotted line shows the electrode unit 110' of the replacement electrode patch (not shown). The electrode unit 110' is staggered as much as possible from the position of the original electrode unit 110, covering the area of the first open space 118 to avoid discomfort caused by the long-term application of the electrode unit 110 on the patient's skin surface. The electrode unit 110 is circular, and the area surrounded by the four surrounding electrode units 110 is the largest blank area. Placing the replacement electrode unit 110' in this position can maximize the staggered position of the original electrode unit 110, alleviating discomfort on the patient's skin.

[0073] In this embodiment, the electrode patch 100 with the above-mentioned size setting is used, and the replacement electrode unit 110' will partially cover the position covered by the previously used electrode unit 110. This design can make the structure of the electrode patch 100 more compact and ensure the electric field strength of the therapeutic electric field. It is understandable that if the electrode patch 100 is used Figure 9 In the covering mode, the replaced electrode unit 110' will partially cover the position covered by the previously used electrode unit 110, so any other application mode can be used as long as the application position remains unchanged, including slight horizontal movement (see Figure 10 As shown in FIG. 1 , the electrode unit 110 ′ may be slightly moved vertically, and the replaced electrode unit 110 ′ may partially cover the position covered by the previously used electrode unit 110 .

[0074] Second embodiment of the electrode patch

[0075] Figures 11 to 15 Shown is the electrode patch 200 of this embodiment.

[0076] refer to Figures 11 to 14 As shown, the electrode patch 200 includes a backing 22, an electrical component 21 adhered to the backing 22, a plurality of supports 23 adhered to the backing 22 in a manner surrounding the electrical component 21, a wire 24 electrically connected to the electrical component 21, and a plurality of adhesive members 25 covering corresponding portions of the electrical component 21 and the supports 23. The electrode patch 200 is attached to the patient's body surface corresponding to the tumor site via the backing 22. The electrical component 21 applies an alternating electric field to the patient's tumor site to disrupt or prevent mitosis of the patient's tumor cells, thereby achieving the purpose of tumor treatment.

[0077] The electrical functional assembly 21 includes a flexible printed circuit board 211 having several main bodies 2111, a plurality of insulating plates 212 and dielectric elements 213 disposed on opposite sides of the main bodies 2111, and a plurality of temperature sensors 214 optionally affixed to the main bodies 2111. The main bodies 2111, the corresponding insulating plates 212, the corresponding dielectric elements 213, and the optionally provided temperature sensors 214 form electrode units 210, which are arranged in an array. The flexible printed circuit board 211 also includes a plurality of connecting portions 2112 for connecting to the electrode units 210, and a wiring portion 2113 extending laterally from a connecting portion 2112 and electrically connected to the conductive wire 24. In this embodiment, the electrode patch 200 is provided with 13 electrode units, which increases the coverage area of the electrode patch 200, enhances the electric field strength applied to the tumor site for tumor electric field therapy, and increases the range of the alternating electric field covering the tumor site, thereby improving the therapeutic effect.

[0078] The structure of the electrode unit 210 is the same as that of the electrode unit 110 of the electrode patch 100 in the first embodiment. For related content, please refer to the relevant content of the electrode patch 100 in the first embodiment and will not be repeated here. The main difference between the electrode patch 200 in this embodiment and the electrode patch 100 in the first embodiment is the different number and arrangement of the electrode units 210, as well as some adjustments made due to the different number and arrangement of the electrode units 210, including the arrangement, row spacing, column spacing, the setting of the connection portion, the setting of the wiring portion, and various dimensions, etc. The following will focus on these differences. For other content, please refer to the relevant content of the electrode patch 100 in the first embodiment.

[0079] In this embodiment, the electrode units 210 are distributed in a matrix area of five rows and five columns, and the arrangement of the main body 2111 is consistent with the arrangement of the electrode units 210. The arrangement of the main body 2111 will be described below. From the perspective of row arrangement, the first and last rows are each provided with two main body 2111, and each of the three middle rows is provided with three main body 2111. In this embodiment, the main body 2111 is distributed in an array area of five rows and five columns. From the perspective of column arrangement, the first, third, and fifth columns are each provided with three main body 2111, and the second and fourth columns are each provided with two main body 2111. Specifically, the two main body 2111 of the first row are respectively located in the second and fourth columns, the three main body 2111 of each of the three middle rows are respectively located in the first, third, and fifth columns, and the two main body 2111 of the last row are respectively located in the second and fourth columns. The two adjacent main bodies 2111 in each row are arranged in alternate columns, and the main bodies 2111 in the second and fourth columns are arranged in alternate rows. The two adjacent main bodies 2111 in the first, third and fifth columns are arranged in adjacent rows. The spacing between the two adjacent main bodies 2111 in the same row is equal. The spacing between the two adjacent main bodies 2111 in the same column is equal. The two main bodies 2111 in the last row are arranged in a disconnected manner, forming a gap 2C between the two main bodies 2111. The wiring portion 2113 is extended laterally from the main body 2111 in the third column of the fourth row. The wiring portion 2113 passes through the gap 2C formed between the two main bodies 2111 in the last row.

[0080] All main bodies 2111 of the flexible circuit board 211 are arranged at intervals within an area with a minimum length of 109 mm and a minimum width of 109 mm. The diameter of the main body 2111 is 21 mm. The spacing between two adjacent main bodies 2111 in each row is the same, at least 23 mm. The spacing between two adjacent main bodies 2111 in the second column and each of the fourth columns is the same, at least 67 mm. The spacing between two adjacent main bodies 2111 in each of the first column, the third column, and the fifth column is the same, at least 1 mm. The aforementioned electrode patch 200 with the minimum-sized main body 2111 is suitable for use by children of smaller size.

[0081] To prevent overlap of the electrical components 21 after the electrode patch 200 is applied to the patient's tumor site, potentially affecting treatment effectiveness, all main bodies 2111 of the flexible circuit board 211 are spaced apart within an area measuring a maximum of 219 mm x 163 mm. The diameter of the main body 2111 is 21-22 mm. The maximum spacing between two adjacent main bodies 2111 in adjacent rows of the flexible circuit board 211 is approximately 28 mm, and the maximum spacing between two adjacent main bodies 2111 in adjacent columns of the flexible circuit board 211 is approximately 50 mm. In other words, the maximum spacing between two main bodies 2111 in adjacent rows of the same column is approximately 28 mm, and the maximum spacing between two main bodies 2111 in adjacent columns of the same column is 50 mm. The maximum dimensions of the flexible circuit board 211 are suitable for most adult patients. For patients with a larger waist, the two pairs of electrode patches 200 can be applied horizontally around the patient's waist. For patients with a smaller waist, the two pairs of electrode patches 200 can be applied vertically around the patient's waist. If the patient's waist circumference is appropriate, one pair of electrode patches 200 can be applied horizontally to the patient's waist, and another pair of electrode patches 200 can be applied vertically to the patient's waist. The two pairs of electrode patches 200 are applied around the patient's waist.

[0082] The connecting portion 2112 includes a first connecting portion 2112A connecting two adjacent main bodies 2111 in the same alternate column, a second connecting portion 2112B connecting two main bodies 2111 in adjacent rows of the same column, and a third connecting portion 2112C connecting two diagonally arranged main bodies 2111 in adjacent rows and columns. The first connecting portion 2112A is located between two adjacent main bodies 2111 in each alternate column and has the same length. The length of the first connecting portion 2112A is approximately 1-50 mm. The second connecting portion 2112B is located between two adjacent main bodies 2111 in each of the first, third, and fifth columns and has the same length. The length of the second connecting portion 2112B is approximately 1-28 mm. The length of the third connecting portion 2112C is greater than half the length of the first connecting portion 2112A. The length of the third connecting portion 2112C is greater than the length of the second connecting portion 2112B. The first connection portion 2112A and the second connection portion 2112B are both roughly arranged in an "I" shape. The third connection portion 2112C is roughly arranged in an "L" shape or in an inclined "I" shape. There are 8 third connection portions 2112C, which are respectively located between the two main bodies 2111 of the first row, second column and the second row of the first column, between the two main bodies 2111 of the first row, second column and the third column of the second row, between the two main bodies 2111 of the second row, third column and the fourth column of the first row, between the two main bodies 2111 of the first row, fourth column and the fifth column of the second row, between the two main bodies 2111 of the second column of the last row and the fourth row of the first column, between the two main bodies 2111 of the second column of the last row and the third column of the fourth row, between the two main bodies 2111 of the fourth row, third column and the fourth column of the last row, and between the two main bodies 2111 of the fourth column of the last row and the fifth column of the fourth row. Preferably, the length of the first connecting portion 2112A is smaller than the diameter of the main body 2111, and the length of the second connecting portion 2112B is smaller than the diameter of the main body 2111. The first connecting portion 2112A and the second connecting portion 2112B are arranged perpendicularly, the third connecting portion 2112C and the adjacent first connecting portion 2112A are arranged at an acute angle, and the second connecting portion 2112B and the adjacent third connecting portion 2112C are also arranged at an acute angle.

[0083] The main body sections 2111 can be divided into peripheral main body sections 2111A located at the periphery of the array, and central main body sections 2111B located within the array, surrounded by the peripheral main body sections 2111A. Specifically, there are ten peripheral main body sections 2111A and three central main body sections 2111B, located in the same row. The peripheral main body sections 2111A and central main body sections 2111B are connected in pairs via connectors 2112. Two adjacent peripheral main body sections 2111A are electrically connected via either a first connector 2112A, a second connector 2112B, or a third connector 2112C. Specifically, two adjacent peripheral main bodies 2111A in the same column are connected by a second connecting portion 2112B, two adjacent peripheral main bodies 2111A in the same row are connected by a first connecting portion 2112A, and two adjacent peripheral main bodies 2111A in adjacent rows and columns and arranged diagonally are connected by a third connecting portion 2112C. The peripheral main bodies 2111A and the first connecting portion 2112A, second connecting portion 2112B, and third connecting portion 2112C between two adjacent peripheral main bodies 2111A are arranged in a generally octagonal shape with one end open. The peripheral main bodies 2111A are arranged in an axisymmetric configuration, with their axis of symmetry coinciding with the line containing the three central main bodies 2111B.

[0084] The central body portions 2111B are located in the third row of three body portions 2111. Each central body portion 2111B is connected to its adjacent peripheral body portion 2111A via either a first connection portion 2112A or a third connection portion 2112C. Two adjacent central body portions 2111B are electrically connected via a second connection portion 2112B. Specifically, the central body portion 2111B is electrically connected to its adjacent peripheral body portion 2111A in the same row via a first connection portion 2112A, and is electrically connected to its diagonally arranged peripheral body portion 2111A in an adjacent row and column via a third connection portion 2112C. This ensures that both the central body portion 2111B and its adjacent peripheral body portion 2111A are connected via at least two connection portions 2112, ensuring a relatively fixed position between the peripheral body portions 2111A and the central body portion 2111B, providing a stable connection and facilitating soldering of the dielectric component 213 to the flexible circuit board 211. Specifically, the central body portion 2111B in the third row is connected only to its adjacent peripheral body portion 2111A in the same row via the first connection portion 2112A, and is disconnected from its diagonally arranged adjacent peripheral body portion 2111A in an adjacent row and column. Each of the other two central body parts 2111B is not only connected to the peripheral body parts 2111A in adjacent rows and columns and arranged diagonally therewith through the third connection parts 2112C, but is also connected to the peripheral body parts 2111A in the same row therewith through the first connection parts 2112A.

[0085] Preferably, the main bodies 2111 of the flexible printed circuit board 211 are spaced apart within an area measuring 129 mm x 81 mm. The diameter of the main body 2111 is 21 mm. The spacing between main bodies 2111 in adjacent rows is 6 mm, and the spacing between main bodies 2111 in alternate columns of the same row is 9 mm. That is, the spacing between two main bodies 2111 in adjacent rows of the same column, i.e., the row spacing, is 6 mm, and the spacing between two main bodies 2111 in adjacent columns of the same row, i.e., the column spacing, is 9 mm. That is, the length of the second connecting portion 2112B is approximately 6 mm, and the length of the first connecting portion 2112A is approximately 9 mm. The width of the wiring portion 113 is 8 mm. The widths of the first connecting portion 2112A, the second connecting portion 2112B, and the third connecting portion 2112C are all 4.5 mm. The areas of the first open spaces 218 formed between the various main bodies 2111 of the flexible printed circuit board 211 are not identical. In this embodiment, among all the first open spaces 218, the first open space 218 formed by the nine main bodies 2111 located in the middle three rows, which are formed by the four main bodies 2111 in the same row and in adjacent rows, has the largest area, which is about 400mm. 2The area of the first open space 218 formed by the three main bodies 2111 in the first row and its adjacent row, and in the last row and its adjacent row of the flexible circuit board 211 is the smallest. Specifically, the first open space 218 formed by the two main bodies 2111 in the same alternate row and the main body 2111 in the alternate row and diagonally arranged with the two main bodies 2111 is the smallest, and its area is approximately 220mm. 2 .

[0086] The connection portion 2113 is partially located between the multiple main bodies 2111 and partially disposed within the first open space 218 enclosed by the multiple main bodies 2111. This prevents the overall size of the flexible circuit board 2111 from being excessively large, which would otherwise increase manufacturing costs. The connection portion 2113 extends laterally from one of the two main bodies 2111 located at the ends of the three main bodies 2111 in the third row. Specifically, the connection portion 2113 extends laterally from the main body 2111 in the fourth row and third column. The connection portion 2113 extends from the central main body 2111B located at the end toward an area away from the array of main bodies 2111. The connection portion 2113 is located between two third connecting portions 2112C and is connected to the central main body 2111B located at the end. The connection portion 2113 and the two third connecting portions 2112C connected to the same central main body 2111B are arranged in a generally arrow-shaped pattern. The wiring portion 2113 extends between the two outer main body portions 2111A that are in the same row and are arranged in a disconnected state. The wiring portion 2113 and the first connecting portion 2112A are arranged approximately perpendicularly. The wiring portion 2113 and the second connecting portion 2112B are arranged approximately in parallel. The wiring portion 2113 is arranged approximately in the shape of a "one". The width of the wiring portion 2113 is at least 4 mm. Preferably, the width of the wiring portion 2113 is 4-8 mm. The angle between the wiring portion 2113 and the third connecting portion 2112C that are simultaneously connected to the same main body portion 2111 is an acute angle. In other embodiments, the wiring portion 2113 can also be arranged to extend laterally from the main body portion 2111 or the central main body portion 2111B located in the second row and third column; and the two main bodies 2111 located in the first row are arranged in a disconnected state, and the wiring portion 2113 passes through the gap between the two main bodies 2111. In other embodiments, the wiring portion 2113 may also be laterally extended from a second connection portion 2112B located between two adjacent central main body portions 2111B, and the wiring portion 2113 and the second connection portion 2112B are arranged vertically; the wiring portion 2113 and the second connection portion 2112B extending the wiring portion 2113 are roughly arranged in a "T" shape.

[0087] The support member 23 is a rectangular sheet with rounded corners and a plurality of through holes 230 in the middle. It is directly adhered to the backing 22 in a ring-shaped manner around the sides of two or three dielectric elements 213 located in the same row. The portion of the support member 23 located around the dielectric element 213 along its width extends into the first open space 218. The adhesive member 25 is a rectangular sheet with rounded corners and covers the support member 23 as a whole. The length and width of the adhesive member 25 are slightly larger than the length and width of the support member 23. As described in the first embodiment, the adhesive member 25 also includes a portion covering the side of the dielectric element 213 facing the patient's skin, a portion covering the side of the support member 23 facing the patient's skin, and a portion covering the side of the support member 23 along its thickness direction. The portion of the adhesive member 25 covering the side of the support member 23 facing the patient's skin extends into the first open space 218 and covers a portion of the first open space 218. The portion of the first open space 218 not covered by the adhesive member 25 or the support member 23 is the second open space 219, which allows the patient's skin to breathe freely and dissipate heat through ventilation. Since the width of the adhesive member 25 and the support member 23 will affect the efficient ventilation area of the first open space 218, it is recommended to adopt the following sizing method for the adhesive member 25 and the support member 23: the width of the support member 23 is 1-8 mm larger than the diameter of the dielectric element 213; the flat width of the adhesive member 25 is 2-14 mm longer than the width of the support member 23; and considering that the edge of the adhesive member 25 covers the side end surface of the support member 23 (with a thickness of 1 mm), the width of the adhesive member 25 after covering the support member 23 is 0-12 mm larger than the width of the support member 23. That is, the distance that the adhesive member 25 extends into the first open space 218 along its width is 0.5-10 mm.

[0088] In this embodiment, the diameter of the dielectric element 213 is 20 mm, the width of the support member 23 is 25 mm, the thickness of the support member 23 is 1 mm, and the width of the adhesive member 25 is 27-29 mm. The length of the adhesive member 25 is slightly longer than the length of the support member 23, and the length of the support member 23 is slightly longer than the length of the entire row of dielectric elements 213, but there are no specific restrictions. While ensuring their respective functions, the support member 23 and the adhesive member 25 are designed to be as narrow as possible to maximize the role of the first open space 218. It can be understood that multiple second open spaces 219 are formed between the multiple adhesive members 25 arranged at intervals, and the size of the second open space 219 is smaller than the size of the first open space 218. In this embodiment, the column spacing between two adjacent dielectric elements 213 is 16 mm, the spacing between two adjacent support members 23 is 11 mm, and the spacing between two adjacent adhesive members 25 is 9 mm, that is, the width of the second open space 219 is 9 mm.

[0089] When the electrode patch 200 is in use, most of the first open space 218 is completely open to the outside through the second open space 219 to ventilate and dissipate heat. The part of the first open space 218 covered by the support member 23 and the adhesive member 25 absorbs moisture through the support member 23 and the adhesive member 25. During the tumor electric field therapy process, the heat accumulated on the skin surface corresponding to the patient's electrode patch 200 and the water vapor generated by sweating can be discharged into the outside air through the second open space 219, avoiding skin erythema, itching, follicular inflammation, pain, papules and other skin discomfort symptoms.

[0090] Combine Figure 15 As shown, in this embodiment, the diameter of the main body 2111 of the electrical functional component 21 is 21 mm. As shown in the figure, they are arranged in five rows and five columns. The distance between two adjacent main bodies 2111 in the same row is 9 mm, and the distance between two adjacent main bodies 2111 in the same column is 6 mm. In other words, the diameter D21 of the electrode unit 210 of the electrode patch 100 is 21 mm, the distance D22 between two adjacent electrode units 210 in the same row is 9 mm, and the distance D23 between two adjacent main bodies 2111 in the same column is 6 mm. After using the electrode patch 200 for a period of time, usually after 2-3 days, it needs to be replaced with a new electrode patch. Figure 15 Shown are schematic diagrams of the different positions of the electrode units of a used electrode patch 200 and a replacement electrode patch (not shown). The solid line shows the electrode unit 210 of the used electrode patch 200, and the dotted line shows the electrode unit 210' of the replacement electrode patch (not shown). The electrode unit 210' is staggered as much as possible from the position of the original electrode unit 210, covering the area of the first open space 218 to avoid discomfort caused by the long-term application of the electrode unit 210 on the patient's skin surface. The electrode unit 210 is circular, and the area surrounded by the four surrounding electrode units 210 is the largest blank area. Placing the replacement electrode unit 210' in this position can maximize the staggered position of the original electrode unit 210, alleviating discomfort on the patient's skin.

[0091] In this embodiment, the electrode patch 200 with the above-mentioned size setting is used, and the replacement electrode unit 210' will partially cover the position covered by the previously used electrode unit 210. This design can make the structure of the electrode patch 200 more compact and ensure the electric field strength of the therapeutic electric field. It is understandable that if the electrode patch 200 is used Figure 15 In the covering method, the replaced electrode unit 210' will partially cover the position covered by the previously used electrode unit 210. In any other application method, as long as the application position remains unchanged, including slight horizontal or vertical movement, the replaced electrode unit 210' will partially cover the position covered by the previously used electrode unit 210. Third embodiment of the electrode patch

[0092] refer to Figures 16 to 20 As shown, the electrode patch 300 of this embodiment includes a backing 32, an electrical component 31 adhered to the backing 32, several supports 33 adhered to the backing 32 and having through-holes 330, a wire 34 electrically connected to the electrical component 31 and having a heat shrink tubing 341, and several adhesive members 35 covering the corresponding portions of the supports 33 and the electrical component 31. The electrode patch 300 is attached to the patient's body surface corresponding to the tumor site via the backing 32, and the electrical component 31 applies an alternating electric field to the patient's tumor site to disrupt or prevent mitosis of the patient's tumor cells, thereby achieving the purpose of tumor treatment.

[0093] The electrical functional assembly 31 includes a flexible printed circuit board 311 having several main bodies 3111, multiple insulating plates 312 and multiple dielectric elements 313 disposed on opposite sides of the main bodies 3111, and multiple temperature sensors 314 optionally secured to the main bodies 3111. The main bodies 3111, the corresponding insulating plates 312, the corresponding dielectric elements 313, and the temperature sensors 314 optionally disposed within through-holes 3131 extending through the dielectric elements 313 form electrode units 310. The electrode units 310 are arranged in an array. The flexible printed circuit board 311 also includes multiple connecting portions 3112 connecting to the electrode units 310, and a wiring portion 3113 extending laterally from a connecting portion 3112 and electrically connected to the wire 34. In this embodiment, the electrode patch 300 is provided with 20 electrode units, which increases the coverage area of the electrode patch 300, enhances the electric field strength applied to the tumor site for tumor electric field therapy, and increases the range of the alternating electric field covering the tumor site, thereby improving the therapeutic effect.

[0094] The structure of the electrode unit 310 is the same as the electrode unit 110 of the electrode patch 100 in the first embodiment. For related content, please refer to the relevant content of the electrode patch 100 in the first embodiment and will not be repeated here. The main difference between the electrode patch 300 in this embodiment and the electrode patch 100 in the first embodiment is the different number and arrangement of the electrode units 310, as well as some adjustments made due to the different number and arrangement of the electrode units 310, including the arrangement, row spacing, column spacing, the arrangement of the connection portion, the arrangement of the wiring portion, and various dimensions, etc. The following will focus on these differences. For other content, please refer to the relevant content of the electrode patch 100 in the first embodiment.

[0095] There are twenty electrode units 310, which are distributed in an array area of four rows and six columns. Each electrode unit 310 is connected to at least three adjacent electrode units 310 via a connecting portion 3112. Each electrode unit 310 is connected to at least three connecting portions 3112. The number of electrode units 310 in each column is not exactly the same. At least two adjacent electrode units 310 in the plurality of electrode units 310 are arranged in a disconnected state, and a gap 3C is formed between the two adjacent electrode units 310 arranged in a disconnected state and for the wiring portion 3113 to pass through. The wiring portion 3113 is laterally extended from the connecting portion 3112 opposite to the gap 3C. The connecting portion 3112 extending the wiring portion 3113 is arranged perpendicular to the wiring portion 3113, and the two are arranged roughly in a "T" shape. The wiring portion 3113 is arranged roughly in an "I" shape. Optionally, the connection portion 3113 is arranged in a T-shape and is connected between two connecting portions 3112 that are connected to two adjacent electrode units 310 that are arranged in a disconnected manner. The connection portion 3113 is located between the multiple electrode units 310 and is arranged within the space enclosed by the multiple electrode units 310. This can prevent the overall size of the electrical functional component 31 from being too large, which would lead to increased manufacturing costs.

[0096] The twenty electrode units 310 are arranged in an array area of four rows and six columns, with two columns each having two electrode units 310, and the remaining four columns each having four electrode units 310. Specifically, the twenty electrode units 310 are distributed in an array area of four rows and six columns, with four columns each having four electrode units 310 adjacent to each other. The spacing between two adjacent electrode units 310 arranged in a row is the same. The multiple connecting portions 3112 connecting two adjacent electrode units 310 arranged in a row have the same length. Specifically, the electrode units 310 in each of the two columns having only two electrode units 310 are arranged in adjacent rows, the spacing between two adjacent electrode units 310 arranged in a column is the same, and the multiple connecting portions 3112 connecting two adjacent electrode units 310 arranged in a column have the same length. The four electrode units 310 in the two columns can be arranged in a row-aligned manner, or staggered in the row direction, or one can be arranged in a row-aligned manner and the other can be staggered in the row direction. Optionally, the two electrode units 310 in at least one of the two columns having only two electrode units 310 are arranged in alternating rows, the spacing between the electrode units 310 arranged in a column is different, and the multiple connecting portions 3112 connecting two adjacent electrode units 310 in a column have different lengths.

[0097] The connecting portion 3112 connects all two adjacent electrode units 310 located at the periphery of the array. At least one of the two adjacent electrode units 310 located in the inner layer of the array is arranged in a disconnected state. Specifically, the connecting portion 3112 is provided between all two adjacent electrode units 310 except for the two electrode units 310 located between the second row and third column and the second row and fourth column, and the two electrode units 310 located between the third row and third column and the third row and fourth column. The lengths of the connecting portions 3112 connecting two adjacent electrode units 310 arranged in a row are equal. The lengths of the connecting portions 3112 connecting two adjacent electrode units 310 arranged in a column are equal. The connecting portions 3112 are located between two adjacent electrode units 310 arranged in a row, between two electrode units 310 arranged in a column, and between two adjacent electrode units 310 located at the periphery of the array and diagonally arranged in adjacent rows and columns.

[0098] Based on the distribution of the electrode units 310 in the array, the multiple electrode units 310 can be divided into a plurality of peripheral electrode units 310A located at the periphery and a plurality of central electrode units 310B surrounded by the peripheral electrode units 310A. In this embodiment, there are 12 peripheral electrode units 310A and 8 central electrode units 310B. All peripheral electrode units 310A are connected in pairs by connecting portions 3112. That is, the connecting portions 3112 are provided between all adjacent peripheral electrode units 310A. At least two of the multiple central electrode units 310B are separated from each other in the same row or column, and a gap 3C is formed between the two to allow the connection portion 3113 to pass through.

[0099] The gap 3C is provided between two adjacent electrode units 310 located in the second row, third column and the second row, fourth column, and between two adjacent electrode units 310 located in the third row, third column and the third row, fourth column. The connection portion 3113 is located between the two columns of electrode units 310 in the third column and the fourth column. The connection portion 3113 is generally T-shaped, passing through the gap 3C and bridging the connection portion 3112 between the two adjacent electrode units 310 in the middle of the third column and the connection portion 3112 between the two adjacent electrode units 310 in the middle of the fourth column. The connection portion 3113 and the two adjacent connection portions 3112 connected thereto are arranged in an axially symmetrical manner. Optionally, the connection portion 3113 is arranged in an I-shape and extends laterally from the connection portion 3112 corresponding to the gap 3C toward the gap 3C.

[0100] refer to Figure 23As shown, the main body 3111 of the electrode unit 310, arranged in four rows and six columns, the connecting portion 3112 connecting two adjacent electrode units 310, and the wiring portion 3113 extending between two adjacent connecting portions 3112, collectively constitute the flexible circuit board 311 of the electrical functional component 31. The flexible circuit board 311 is arranged in a grid pattern. The dielectric elements 313 are disposed at the grid points of the flexible circuit board 311. It can be understood that the main body 3111 represents the grid points of the flexible circuit board 311. From the perspective of the electrode unit 310, the insulating plate 312 is disposed on the side of the main body 3111 of the flexible circuit board 311 away from the human skin, the dielectric element 313 is disposed on the side of the main body 3111 of the flexible circuit board 311 facing the human skin, and the temperature sensor 314 is optionally disposed on the side of the main body 3111 of the flexible circuit board 311 facing the human skin. The layout of the main body 3111 of the flexible circuit board 311 is consistent with the layout of the electrode units 310.

[0101] In this embodiment, the electrode patch 300 is provided with 10 support members 33. The two through holes 330 of each support member 33 are respectively used to accommodate two adjacent electrode units 310 in the same column. Adhesive members 35 are provided corresponding to the number of support members 33 and are applied to the support members 33 and the electrode units 310. A plurality of adjacent electrode units 310 are arranged in a spaced-apart manner and form a first open space 318. This allows the skin on the patient's body surface corresponding to the tumor site covered by the electrode patch 300 to breathe freely after the electrode patch 300 is placed on the patient's body surface corresponding to the tumor site. The following describes in detail the dimensions of the electrode units 310, the connecting portion 3112, the wiring portion 3113 of the electrical functional component 31, and the dimensions of the first open space 318.

[0102] The electrode units 310 are generally circular sheet-shaped, with a diameter of approximately 21-12 mm. The spacing between two adjacent electrode units 310 arranged in a row is the same. The spacing between two adjacent electrode units 310 in the same row is at least 8 mm. The spacing between two adjacent electrode units 310 arranged in a column is the same. The spacing between two adjacent electrode units 310 in the same column is at least 6.5 mm. The spacing between two adjacent electrode units 310 in adjacent rows and columns and arranged diagonally is the same. The spacing between two adjacent electrode units 310 in adjacent rows and columns and arranged diagonally is at least approximately 19 mm.

[0103] The electrical functional component 31 is generally octagonal, with a minimum length of 166 mm and a minimum width of 103.5 mm. That is, all electrode units 310 of the electrical functional component 31 are spaced apart within an area measuring at least 166 mm x 103.5 mm. This size of electrode patch is suitable for children with smaller waistlines.

[0104] To prevent overlap of the electrical functional components 31 after the electrode patch 300 is applied to the patient's tumor site, which could affect treatment effectiveness, the maximum spacing between adjacent electrode units 310 in the same row is 22 mm, the maximum spacing between adjacent electrode units 310 in the same column is 25 mm, and the spacing between adjacent electrode units 310 in adjacent rows and columns arranged diagonally is at least approximately 33.3 mm. Given the maximum diameter of the electrode units 310 of 22 mm, the electrical functional component 31 has a maximum length of 242 mm and a maximum width of 166 mm. In other words, all electrode units 310 of the electrical functional component 31 are spaced apart within an area of a maximum of 242 mm x 166 mm. The maximum dimensions of the electrical functional component 31 are suitable for most adult patients. For patients with a larger waist circumference, the two pairs of electrode patches 300 can be applied horizontally around the patient's waist. For patients with a smaller waist circumference, the two pairs of electrode patches 300 can be applied vertically around the patient's waist. If the patient's waist circumference is appropriate, one pair of electrode patches 300 can be applied horizontally to the patient's waist, and another pair of electrode patches 300 can be applied vertically to the patient's waist. The two pairs of electrode patches 300 are applied around the patient's waist.

[0105] The length of the connecting portions 3112 connecting two adjacent electrode units 310 in the same row is approximately 8-22 mm, and the length of the connecting portions 3112 connecting two adjacent electrode units 310 in the same column is approximately 6.5-25 mm. The length of the connecting portions 3112 connecting two adjacent electrode units 310 in adjacent rows and columns and arranged diagonally is approximately 19-33.3 mm. The width of all connecting portions 3112 between two adjacent electrode units 310 is 4.5-6 mm. Preferably, the width of the connecting portion 3112 is 4.5 mm.

[0106] The wiring portion 3113 is located between the multiple electrode units 310 and is disposed within the first open space 318 enclosed by the multiple electrode units 310. This prevents the overall size of the electrical functional component 31 from being too large, which would otherwise increase manufacturing costs. The wiring portion 3113 includes a bridging segment 3113A that bridges between two opposing connecting portions 3112 and a wiring segment 3113B that connects to the wire 34. The wiring segment 3113B is arranged perpendicular to the bridging segment 3113A. The bridging segment 3113A of the wiring portion 3113 is arranged perpendicular to the two connecting portions 3112 it connects to, while the wiring segment 3113B of the wiring portion 3113 is arranged parallel to the two connecting portions 3112 it connects to. The bridging segment 3113A of the wiring portion 3113 bridges between two adjacent connecting portions 3112 located in the middle, and the wiring segment 3113B of the wiring portion 3113 extends laterally from the middle of the bridging segment 3113A. The width of the wiring segment 3113B of the wiring portion 3113 is at least 4 mm, and the spacing between the wiring segment 3113B of the wiring portion 3113 and the adjacent electrode unit 310 is at least 2 mm. Preferably, the width of the wiring segment 3113B of the wiring portion 3113 is 4-8 mm. The width of the bridging segment 3113A of the wiring portion 3113 is 4.5-6 mm, and the spacing between the bridging segment 3113A of the wiring portion 3113 and the adjacent electrode unit 310 is at least 1 mm. Preferably, the width of the bridging segment 3113A of the wiring portion 3113 is the same as the width of the connecting portion 3112. The gold finger 31130 welded to the wire 34 is provided on the wiring segment 3113B.

[0107] Preferably, in this embodiment, reference Figure 21 and Figure 22As shown, the diameter of the electrode unit 310 is 21 mm. The spacing between two adjacent electrode units 310 arranged in a row, i.e., the column spacing, is 9 mm. The spacing between two adjacent electrode units 310 arranged in a column, i.e., the row spacing, is 6 mm. The length of multiple connecting portions 3112 connecting two adjacent electrode units 310 in the same row is approximately 9 mm, the length of multiple connecting portions 3112 connecting two adjacent electrode units 310 in the same column is approximately 6 mm, and the length of multiple connecting portions 3112 connecting two adjacent electrode units 310 located in adjacent rows and columns and arranged diagonally is approximately 20 mm. The width of the connecting portion 3112 is 4.5 mm. The width of the bridging section 3113A of the wiring portion 3113 is 4.5 mm, the width of the wiring section 3113B of the wiring portion 3113 is 8 mm, and the length of the wiring section 3113B of the wiring portion 3113 is 42 mm. The length of the electrical functional component 31 is 201 mm and the width is 153 mm. The areas of the first open spaces 318 formed between the multiple electrode units 310 of the electrical functional component 31 are not exactly the same. In this embodiment, among all the first open spaces 318, the area of the first open space 318 located between the eight electrode units 310 in the two middle columns and through which the wiring portion 3113 passes is the largest. The areas of the first open spaces 318 located at the four corners of the electrical functional component 31 are the smallest. The first open spaces 318 located at the corners of the electrical functional component 31 are formed by three electrode units 310 that are adjacent to each other in the same row, adjacent to each other in the same column, and adjacent to each other in adjacent rows and columns and arranged diagonally. The area of the other first open spaces 318 formed by four electrode units 310 located in adjacent rows and columns is approximately 400mm 2 .

[0108] As described in the previous embodiments, the support member 33 is placed around the dielectric element 313 on the circumferential side of two adjacent dielectric elements 313 in the same row and is directly adhered to the backing 32, with a portion thereof extending into the first open space 318. The adhesive member 35 completely covers the support member 33 and a portion thereof along the width direction also extends into the first open space 318 and covers a portion of the first open space 318. The portion of the first open space 318 covered by the adhesive members 35 and the support members 33 forms a second open space 319 located between adjacent adhesive members 35. The size of the second open space 319 affects the effective ventilation area of the first open space 318. The following dimensional design is recommended for the adhesive members 35 and the support members 33: the width of the support member 33 is 1-8 mm larger than the diameter of the dielectric element 313, and the flat width of the adhesive member 35 is 2-14 mm longer than the width of the support member 33. Considering that the edge of the adhesive member 35 covers the side end surface of the support member 33 (with a thickness of 1 mm), the width of the adhesive member 35 after covering the support member 33 is 0-12 mm larger than the width of the support member 33. That is, the distance that the adhesive member 35 extends into the first open space 318 along its width direction is 0.5-10 mm. In this embodiment, the diameter of the dielectric element 313 is 20 mm, the width of the support member 33 is 25 mm, and the width of the adhesive member 35 is 27-29 mm. In this embodiment, the row spacing between two adjacent dielectric elements 313 is 16 mm, the spacing between two adjacent support members 33 is 11 mm, and the spacing between two adjacent adhesive members 35 is 9 mm. The electrode units 310 in the middle column are covered by two adhesive members 35 spaced apart, and the column spacing between the two adhesive members 35 in the same column is 16 mm.

[0109] When the electrode patch 300 is in use, most of the first open space 318 is fully open to the outside through the second open space 319, allowing ventilation and heat dissipation. The portion of the first open space 318 covered by the support member 33 and the adhesive member 35 absorbs moisture through the support member 33 and the adhesive member 35. During tumor electric field therapy, heat accumulated on the patient's skin surface where the electrode patch 300 is applied and moisture generated by sweat are discharged into the outside air through the second open space 319, preventing skin discomfort symptoms such as erythema, itching, follicular inflammation, pain, and papules.

[0110] Combine Figure 20 As shown, in this embodiment, the diameter of the main body 3111 of the electrical functional component 31 is 21 mm, the row spacing is 6 mm, and the column spacing is 9 mm. In other words, the diameter D31 of the electrode unit 310 of the electrode patch 300 is 21 mm, the spacing D32 between two adjacent electrode units 310 in the same row is 9 mm, and the spacing D33 between two adjacent electrode units 310 in the same column is 6 mm. After using the electrode patch 300 for a period of time, usually after 2-3 days, it needs to be replaced with a new electrode patch. Figure 20Shown are schematic diagrams of the different positions of the electrode units of a used electrode patch 300 and a replacement electrode patch (not shown). The solid line shows the electrode unit 310 of the used electrode patch 300, and the dotted line shows the electrode unit 310' of the replacement electrode patch (not shown). The electrode unit 310' is staggered as much as possible from the position of the original electrode unit 310, covering the area of the first open space 318 to avoid discomfort caused by the long-term application of the electrode unit 310 on the patient's skin surface. The electrode unit 310 is circular, and the area surrounded by the four surrounding electrode units 310 is the largest blank area. Placing the replacement electrode unit 310' in this position can maximize the staggered position of the original electrode unit 310, alleviating discomfort on the patient's skin.

[0111] In this embodiment, the electrode patch 300 with the above-mentioned size setting is used, and the replacement electrode unit 310' will partially cover the position covered by the previously used electrode unit 310. This design can make the structure of the electrode patch 300 more compact and ensure the electric field strength of the therapeutic electric field. It is understandable that if the electrode patch 300 is used Figure 20 In the covering method, the replaced electrode unit 310' will partially cover the position covered by the previously used electrode unit 310. Then, in any other application method, as long as the application position remains unchanged, including slight horizontal movement or slight vertical movement, the replaced electrode unit 310' will partially cover the position covered by the previously used electrode unit 310.

[0112] Fourth embodiment of the electrode patch

[0113] refer to Figures 21 to 23 As shown, the electrode patch 400 of this embodiment includes a backing 42, an electrical functional component 41 adhered to the backing 42, two adhesive members 45 covering the electrical functional component 41, and a wire (not shown) electrically connected to the electrical functional component 41. The electrical functional component 41 includes a flexible circuit board 411 and a polymer dielectric layer 412 covering the flexible circuit board 411. The function of the polymer dielectric layer 412 is similar to the multiple dielectric elements in the previous embodiments. The polymer dielectric layer 412 includes a plurality of dielectric portions 413. In this embodiment, the polymer dielectric layer 412 is in the shape of a flower, and each petal is a dielectric portion 413. The plurality of dielectric portions 413 are arranged in a radially radiating shape. The multiple dielectric portions 413 are electrically connected through the flexible circuit board 411 to ensure that they can all receive AC signals. The two adhesive members 45 are arranged at intervals. As a simple transformation, the two adhesive members 45 can also be connected as one. The shape of the two adhesive members 45 is consistent with the shape of the polymer dielectric layer 412 and can completely cover the polymer dielectric layer 412. The adhesive members 45 are correspondingly provided with adhesive parts 451 covering each dielectric part 413.

[0114] A plurality of first open spaces 418 are formed between the multiple dielectric portions 413. The edges of the adhesive portions 451 extend into these first open spaces 418 and are directly adhered to the backing 42, increasing the stability of the adhesive member 45. However, the adhesive portions 451 occupy the highly effective ventilation area of the first open spaces 418. Therefore, a dimensional design approach is recommended for the adhesive member 45: the distance the edges of the adhesive portions 451 extend into the first open spaces 418 is 0.5-10 mm, preferably 0.5-6 mm, and more preferably 0.5-1 mm. This dimension is slightly smaller than the corresponding dimensions in the previous embodiments due to the lack of support. The adhesive portions 451 are slightly larger than the dielectric portions 413. After fully covering the dielectric portions 413, the excess portion extends into and partially covers the first open spaces 418. The portion of the first open spaces 418 not covered by the adhesive portions 451 forms a second open space 419 located between adjacent adhesive portions 451, allowing the patient's skin to breathe freely and dissipate heat. When the electrode patch 400 is in use, the second open space 419 can allow the heat accumulated on the skin surface corresponding to the patient's electrode patch 400 and the water vapor generated by sweating to be discharged into the outside air. The part of the first open space 418 covered by the adhesive part 451 can absorb moisture through the adhesive part 451, thereby avoiding skin erythema, itching, hair follicle inflammation, pain, papules and other skin discomfort symptoms.

[0115] refer to Figure 23 As shown, in this embodiment, the electrical functional component 21 is provided with a total of six petal-shaped dielectric portions 413. The area of the flexible printed circuit board 411 covered by the dielectric portion 413 is identical in shape and size to the corresponding dielectric portion 413. It can be defined that each petal-shaped dielectric portion 413 and the flexible printed circuit board 411 covered thereby collectively form an electrode unit 410. In this embodiment, the plurality of electrode units 410 are evenly distributed and of uniform size. The sum of the central angles corresponding to the plurality of electrode units 410 is greater than 180°, preferably between 200° and 240°. In this embodiment, the central angle of the dielectric portion 413 is 35°.

[0116] The electrode patch 400 needs to be replaced with a new one after being used for a period of time, usually 2-3 days. Figure 23Schematic diagrams depict the different positions of the electrode units 410 of a used electrode patch 400 and a replacement electrode patch (not shown). The solid lines depict the electrode units 410 of the used electrode patch 400, while the dashed lines depict the electrode units 410' of the replacement electrode patch (not shown). The electrode units 410' are positioned as far away from the original electrode units 410 as possible, covering the area of the first open space 418 to prevent discomfort caused by prolonged contact of the electrode units 410 with the patient's skin. It should be understood that the electrode patch 400 is generally circular and flower-shaped, and rotation can cause the electrode units 410' to be positioned as far away from the original electrode units 410 as possible, preventing discomfort caused by prolonged contact of the electrode units 410 with the patient's skin. In this embodiment, using the electrode patch 400 with the aforementioned dimensions, the replacement electrode units 410' partially cover the areas previously covered by the used electrode units 410. This design allows for a more compact structure of the electrode patch 400, ensuring the strength of the therapeutic electric field.

[0117] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An electrode patch, characterized in that: The present invention comprises an electrical functional component having a plurality of electrode units arranged at intervals and a plurality of adhesive members that completely cover the corresponding electrode units, wherein a plurality of second open spaces are formed between the plurality of adhesive members, and adjacent adhesive members are arranged at intervals so that when the electrode patch is replaced, the adhesive member of the replaced electrode patch covers both the area of the second open space of the replaced electrode patch and partially covers the position covered by the adhesive member of the replaced electrode patch.

2. The electrode patch according to claim 1, characterized in that: The ratio of the area of the overlapping portion covered by the adhesive member of the replaced electrode patch and the corresponding adhesive member of the replaced electrode patch to the total area covered by the adhesive member of the electrode patch before replacement is at least the ratio of the width of the adhesive member and the difference between the intervals between two adjacent adhesive members to the width of the adhesive member.

3. The electrode patch according to claim 2, characterized in that: The electrical functional component is provided with 9 electrode units arranged in three rows and three columns, and the ratio of the area of the overlapping part covered by the adhesive of the replaced electrode patch and the corresponding adhesive of the replaced electrode patch to the total area covered by the adhesive of the electrode patch before replacement is at least 33.3%.

4. The electrode patch according to claim 3, characterized in that: The width of the adhesive piece is 27-29 mm, and the interval between two adjacent adhesive pieces is 18 mm.

5. The electrode patch according to claim 2, characterized in that: The ratio of the area of the overlapping portion of the adhesive member of the replaced electrode patch and the position covered by the corresponding adhesive member of the replaced electrode patch to the total area covered by the adhesive member of the electrode patch before replacement is at least 66.7%.

6. The electrode patch according to claim 5, characterized in that: The width of the adhesive piece is 27-29 mm, and the interval between two adjacent adhesive pieces is 9 mm.

7. The electrode patch according to claim 6, characterized in that: The electrical functional component is provided with 13 electrode units arranged in five rows and five columns, wherein the first row and the last row are each provided with two electrode units, and the middle three rows are each provided with three electrode units, and the two electrode units in the first row and the last row are located in the second and fourth columns, and the middle three rows are located in the first, third and fifth columns.

8. The electrode patch according to claim 6, characterized in that: The electrical functional component is provided with 20 electrode units arranged in four rows and six columns, wherein the first row and the last row are each provided with four electrode units, and the two middle rows are each provided with six electrode units; and the first column and the last column are each provided with two electrode units, and the four middle columns are each provided with four electrode units.

9. The electrode patch according to any one of claims 1 to 8, characterized in that: It also includes a plurality of support members arranged around the circumference of the corresponding electrode units, the width of the adhesive member is larger than the width of the support member, and the adhesive member completely covers the corresponding support member.

10. A tumor electric field treatment device, characterized in that: The invention comprises an electric field generator and the electrode patch according to any one of claims 1 to 9 electrically connected to the electric field generator.

Images