CN216497039U - Tumor electric field treatment system and electrode plate thereof - Google Patents

Abstract

The utility model provides a tumor electric field treatment system and an electrode plate thereof, which are used for tumor electric field treatment, wherein the electrode plate comprises a flexible circuit board arranged in a net shape, a plurality of high dielectric pieces arranged on the flexible circuit board and a lead electrically connected with the flexible circuit board, the flexible circuit board is provided with a plurality of grid nodes, the high dielectric pieces are all arranged at the corresponding grid nodes of the flexible circuit board and are arranged in a pairwise interval manner, and the number of the high dielectric pieces is at least 10. The electrode slice applies an alternating electric field to the tumor part of a patient through at least 10 high dielectric slices arranged on the flexible circuit board so as to treat the tumor, can avoid the influence of insufficient electric field treatment on the treatment effect caused by the difference of the size, the position and the position of the tumor, increases the coverage area of the electrode slice, enhances the electric field intensity applied to the tumor part and improves the treatment effect.

Description

Tumor electric field treatment system and electrode plate thereof

Technical Field

The utility model relates to an electric field tumor treatment system and an electrode plate thereof, belonging to the technical field of medical instruments.

Background

At present, the treatment modes of tumors mainly comprise operations, radiotherapy, chemotherapy and the like, but the methods have corresponding defects, for example, radiotherapy and chemotherapy can generate side effects and kill normal cells. The electric field for Treating Tumor is also one of the current development fronts, and the electric field for Treating Tumor (TTF) is a method for applying an alternating electric field with low intensity and medium frequency to cancer cells, thereby interfering the mitosis process of the cancer cells, inhibiting the mitosis of the cancer cells, inducing the apoptosis of the cancer cells and achieving the treatment effect. Research shows that the electric field treatment has obvious effect in treating diseases such as glioblastoma, non-small cell lung cancer, malignant pleural mesothelioma and the like, and the electric field applied by the method can influence the aggregation of tubulin of the dividing cancer cells, prevent the formation of spindles of the dividing cancer cells, inhibit the mitotic process of the cancer cells and induce the apoptosis of the cancer cells.

The tumor electric field treatment system for treating tumor mainly comprises an electric field generator and an electrode plate electrically connected with the electric field generator. The electrode sheet is pasted on the skin of the corresponding part of the human body with the tumor so as to apply an alternating electric field to the tumor part for electric field tumor treatment. Because of the differences of patients, the tumor position, the tumor size are different, when the electrode sheet disclosed in the Chinese patent application No. 112717272 is used for treatment, the electric field intensity applied to the tumor position through the electrode sheet for treatment is insufficient, or the electric field does not cover the tumor part area, thereby affecting the treatment effect.

Therefore, there is a need to provide an improved electrode plate and a tumor electric field treatment system thereof to solve the problems of the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electrode slice and a tumor electric field treatment system thereof, which can be pasted on the body surface corresponding to the tumor part of the trunk of a patient to carry out electric field treatment on the tumor part.

The electrode plate is realized by the following technical scheme: an electrode slice is used for electric field treatment of tumors and comprises a flexible circuit board which is arranged in a net shape, a plurality of high dielectric pieces which are arranged on the flexible circuit board and a lead which is electrically connected with the flexible circuit board, wherein the flexible circuit board is provided with a plurality of grid nodes, the high dielectric pieces are arranged at the grid nodes corresponding to the flexible circuit board and are arranged in a pairwise interval shape, and the number of the high dielectric pieces is at least 10.

Further, the plurality of high dielectric sheets are distributed in the area of five rows and three columns, and the number of the high dielectric sheets is 13.

Furthermore, two adjacent high dielectric sheets in at least one of the five rows are arranged in a spaced column.

Further, the pitches between two adjacent high dielectric sheets arranged in a row are different, and the pitches between two adjacent high dielectric sheets arranged in a column are the same.

Furthermore, the 13 high dielectric sheets are arranged in a first row and a third row, each row is respectively provided with 5 high dielectric sheets, the middle row is provided with 3 high dielectric sheets, and the 3 high dielectric sheets positioned in the middle row are all arranged in a pairwise adjacent row.

Furthermore, the 13 electrode plates are arranged in a manner that each row of the first row and the last row is respectively provided with 2 high dielectric plates, and each row of the middle three rows is respectively provided with 3 high dielectric plates.

Further, the 13 high dielectric slabs are arranged in a row-by-row arrangement with 5 high dielectric slabs, and the second row and the third row are respectively arranged with 4 high dielectric slabs, the three high dielectric slabs in the second row are arranged in a row-wise alignment with the corresponding three high dielectric slabs in the third row, and the other high dielectric slabs in the second row are arranged in a row-wise staggering manner with the other high dielectric slabs in the third row.

Further, the pitches between two adjacent high dielectric sheets arranged in a row are different, and the pitches between two adjacent high dielectric sheets arranged in a column are different.

Further, at least one of the high dielectric slabs is disposed in a row with two adjacent high dielectric slabs in the same column.

Furthermore, the 13 high dielectric sheets are arranged in a first row and a third row, each row is respectively provided with 5 high dielectric sheets, the second row is provided with 3 high dielectric sheets, and at least one adjacent two high dielectric sheets in the 3 high dielectric sheets in the second row are arranged in a spaced row.

Furthermore, the 13 high dielectric sheets are arranged in a first row with 5 high dielectric sheets, and each row of the second row and the third row is respectively provided with 4 high dielectric sheets, two adjacent high dielectric sheets in one of the second row and the third row are arranged in a spaced row, and two adjacent high dielectric sheets in the other row are arranged in two adjacent rows.

Further, the 13 high dielectric sheets are arranged in pairs in a diagonal shape of adjacent rows or adjacent columns or adjacent rows and adjacent columns.

Further, the pitches between two adjacent high dielectric sheets arranged in a row are the same, and the pitches between two adjacent high dielectric sheets arranged in a column are the same.

Furthermore, the 13 high dielectric sheets are arranged in a manner that each of the first row and the last row is provided with 2 high dielectric sheets, each of the middle three rows is provided with 3 high dielectric sheets, and the high dielectric sheet positioned in the first row and the high dielectric sheet positioned in the last row are arranged in a column alignment manner.

Further, the 13 high dielectric sheets are arranged in a first row and a last row, each row is provided with 2 high dielectric sheets, the middle three rows are provided with 3 high dielectric sheets, each row is provided with one high dielectric sheet in the first row and one high dielectric sheet in the last row are arranged in a column alignment manner, and the other high dielectric sheet in the first row and the other high dielectric sheet in the last row are arranged in a column staggered manner.

Further, the flexible circuit board has a plurality of connecting portions between two adjacent high dielectric sheets, and the grid node is an intersection of at least two connecting portions.

Furthermore, the flexible circuit board is also provided with a wiring part welded with the lead, and the lead is provided with a heat-shrinkable sleeve for coating the welding part of the lead and the wiring part.

Further, at least one of the high dielectric sheets is disposed in a broken state and forms a space, and the wiring portion passes through the space.

Furthermore, a plurality of conducting discs which are arranged at intervals and correspond to the high dielectric sheets one to one are arranged on the flexible circuit board, and the conducting discs are welded with the corresponding high dielectric sheets.

Furthermore, the high dielectric piece also comprises a plurality of temperature sensors arranged on the flexible circuit board, and the high dielectric piece is provided with an opening corresponding to the temperature sensors.

Further, each of the high dielectric sheets connects at least two high dielectric sheets adjacent thereto through a connection portion.

The tumor electric field treatment system is realized by the following technical scheme: an electric field tumor treating system comprises an electric field generator and the electrode plate electrically connected with the electric field generator.

Furthermore, the electrode patch also comprises an adapter electrically connected with the electric field generator, and the electrode patch is detachably assembled on the adapter.

Furthermore, one end of the lead of the electrode patch is provided with a plug which is plugged with the adapter.

The electrode slice applies an alternating electric field to the tumor part of a patient through at least 10 high dielectric slices arranged on the flexible circuit board so as to treat the tumor, can avoid the influence of insufficient electric field treatment on the treatment effect caused by the difference of the size, the position and the position of the tumor, increases the coverage area of the electrode slice, enhances the electric field intensity applied to the tumor part and improves the treatment effect.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model, as claimed.

Drawings

Fig. 1 is a perspective view of the electrode sheet of the tumor electric field treatment system of the present invention.

Fig. 2 is an exploded perspective view of the electrode sheet of fig. 1.

Fig. 3 is an exploded perspective view of the electrical functional components of the electrode sheet of fig. 2.

Figure 4 is a plan view of the high dielectric sheet of the electrical functional assembly of figure 3.

Fig. 5 is a plan view of the electrical functional assembly of fig. 2.

Fig. 6 is a schematic block diagram of the tumor electric field treatment system of the present invention.

Description of reference numerals:

the tumor electric field treatment system 1000, the electric field generator 200, the adaptor 300, the electrode sheet 100, the electrical functional assembly 1, the electrode unit 10, the flexible circuit board 11, the main body portion 111, the peripheral main body portion 111A, the central main body portion 111B, the space C, the connection portion 112, the first connection portion 112A, the second connection portion 112B, the third connection portion 112C, the wire connection portion 113, the conductive pad 114, the conductive core 115, the insulating plate 12, the high dielectric sheet 13, the metal layer 131, the opening 132, the temperature sensor 14, the backing 2, the threading hole 21, the support 3, the through hole 31, the lead wire 4, and the heat shrinkable sleeve 41.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of devices, systems, apparatus, and methods consistent with certain aspects of the utility model.

Referring to fig. 1 to 6, an electric field therapy system 1000 for treating tumor according to the present invention includes an electric field generator 200, an adaptor 300 electrically connected to the electric field generator, and an electrode sheet 100 electrically connected to the electric field generator 200 through the adaptor 300. The electrode sheet 100 is attached to the body surface of a patient, and the therapeutic electric field generated by the electric field generator 200 acts on the human body. The electrode sheet 100 of the tumor electric field treatment system 1000 of the present invention is applied to the trunk, such as the chest and abdomen, of a human body for tumor treatment.

Referring to fig. 1 to 5, the electrode sheet 100 can be attached to the body surface corresponding to the tumor region of the trunk of the patient for performing the electric field therapy on the tumor region, and includes a flexible backing 2, an electrical functional component 1 adhered to the backing 2, a supporting member 3 adhered to the backing 2, an adhesive member (not shown) adhered to the supporting member 3, and a lead 4 electrically connected to the electrical functional component 1. The electrode plate 100 of the utility model is attached to the corresponding body surface of the tumor part of the patient through the backing 2, and applies an alternating electric field to the tumor part of the patient through the electric functional component 1 to interfere or prevent the mitosis of the tumor cells of the patient, thereby realizing the purpose of treating the tumor.

Referring to fig. 3, the electrical function assembly 1 includes a flexible circuit board 11, a plurality of insulating plates 12 and a plurality of high dielectric sheets 13 respectively disposed on opposite sides of the flexible circuit board 11, and a plurality of temperature sensors 14 fixed on the flexible circuit board 11. The temperature sensor 14 is located on the same side of the flexible circuit board 11 as the high dielectric sheet 13. The plurality of high dielectric sheets 13 are arranged on one side of the flexible circuit board 11 close to the body surface of the patient, and the plurality of insulating plates 12 are arranged on one side of the flexible circuit board 11 far away from the body surface of the patient. The electric functional assembly 1 is respectively adhered to the back lining 2 through the insulating plate 12 and the corresponding part of the flexible circuit board 11 and is closely attached to the back lining 2. The electrode sheet 100 applies an alternating electric signal generated by the electric field generator 200 to the tumor site of the patient through the plurality of high dielectric sheets 13 provided on the flexible circuit board 11, thereby performing electric field treatment on the tumor site of the patient.

The flexible circuit board 11 is disposed in a mesh shape, and includes a plurality of main body portions 111 arranged in an array, a plurality of connecting portions 112 located between adjacent main body portions 111, and a wiring portion 113 electrically connected to a wire 4. The main body portion 111 is located at a position where at least two connection portions 112 intersect, that is, the main body portion 111 is located at a position of a grid node of the flexible circuit board 11. The wire connecting portion 113 may be extended laterally from the connecting portion 112, or may be extended laterally from the main body portion 111, which is free at one end. The plurality of high dielectric sheets 13 are provided in one-to-one correspondence with the plurality of body portions 111, respectively. The high dielectric sheets 13 are welded to the respective body portions 111. The body 111 is provided at the end of the connecting portion 112. The main body 111 is extended from the end of the connecting part 112. The main body 111 is provided in a substantially circular sheet shape. Alternatively, the main body 111 may be formed in a strip or belt-like configuration and integrally formed with the connecting portion 112. The main body 111 is provided with conductive pads 114 corresponding to the respective high dielectric sheets 13, which can be soldered (not shown) to the respective high dielectric sheets 13 to assemble the high dielectric sheets 13 on the main body 111 of the flexible circuit board 11. The center of the conductive pad 114 coincides with the center of the body portion 111. Each conductive pad 114 has 4 conductive cores 115 protruding or exposed from the main body 111. The conductive core 115 is disposed in a central symmetrical manner, so that the position of the high dielectric sheet 13 can be effectively prevented from being shifted due to stacking of solder (not shown) during the soldering process. The 4 conductive cores 115 are arranged at intervals, so that the using amount of copper foil for manufacturing the conductive cores 115 can be reduced, and the material cost is reduced; meanwhile, the amount of solder (not shown) used for welding the conductive core 115 and the high dielectric sheet 13 can be saved, thereby further reducing the material cost.

The 4 conductive cores 115 of the same conductive disc 114 are all in a petal configuration. Each of the conductive cores 115 includes an inner arc (not numbered) and an outer arc (not numbered) that are connected end to end. The inner arc (not numbered) and the outer arc (not numbered) of the conductive core 115 are arranged in an axisymmetric manner. The inner arcs (not numbered) of the 4 conductive cores 115 of the same conductive pad 114 are all recessed toward the center of the conductive pad 114. The outer arcs (not numbered) of the 4 conductive cores 115 of the same conductive pad 114 all project away from the center of the conductive pad 114. The 4 conductive cores 115 forming the conductive disc 114 are arranged in a centrosymmetric manner and in an axisymmetric manner, and each conductive core 115 is also arranged in an axisymmetric manner, so that stress balance of each welding point can be ensured when the conductive disc 114 is welded with the high dielectric sheet 13, the integral welding balance of the high dielectric sheet 13 is ensured, the welding quality is improved, and the welding part on the side with a larger interval between the high dielectric sheet 13 and the main body part 111, which is caused by the inclination of the high dielectric sheet 13 due to unbalanced welding stress, is prevented from being weak in strength and easy to break; meanwhile, the fitting degree of the electrode plate 100 can be prevented from being affected. The outer arcs (not numbered) of the 4 conductive cores 115 of the same conductive disk 114 are located substantially on the same circumference.

The number of the main body parts 111 is at least 10, and the main body parts are distributed in an array area which is at least arranged in three rows and four columns. The number of the high dielectric sheets 13 is at least 10, and the arrangement mode of the high dielectric sheets is consistent with that of the main body part 111, so that the coverage area of the electrode sheet 100 can be increased, the electric field intensity applied to a tumor part for tumor electric field treatment is enhanced, the range of the alternating electric field covering the tumor part is enlarged, and the treatment effect is improved. Preferably, the number of the main body 111 and the number of the high dielectric sheets 13 are 13, and the two are distributed in the array region of five rows and three columns. The 13 main body parts 111 are arranged in pairs in the form of diagonal rows, adjacent columns or adjacent rows and adjacent columns.

The 13 main body parts 111 are arranged in an array region of five rows and three columns in a manner that each row of the first row and the last row is respectively provided with 2 main body parts 111, and each row of the middle three rows is respectively provided with 3 main body parts 111. The 9 main body portions 111 located in the middle three rows are arranged in alignment in the column direction. When the 2 main body portions 111 in the first row are arranged in a spaced row, the distance between two adjacent main body portions 111 in the same row is different, the distance between two adjacent main body portions 111 in the same column is the same, and the distance between two main body portions 111 in adjacent rows and columns arranged diagonally is the same. That is, the connecting portions 112 connecting the two adjacent main body portions 111 in the same row have different lengths, the connecting portions 112 connecting the two adjacent main body portions 111 in the same column have the same length, and the connecting portions 112 connecting the two main body portions 111 located in the adjacent rows and the adjacent columns and arranged diagonally have the same length. When the 2 main body parts 111 in the first row are located in two adjacent columns, and the 2 main body parts 111 in the last row are also located in two adjacent columns, the distance between two adjacent main body parts 111 in the same row is the same, the distance between two adjacent main body parts 111 in the same column is the same, and the distance between two main body parts 111 in adjacent rows and in diagonal arrangement is the same. That is, the connecting portions 112 connecting the two adjacent main body portions 111 in the same row have the same length, the connecting portions 112 connecting the two adjacent main body portions 111 in the same column have the same length, and the connecting portions 112 connecting the two main body portions 111 located in the adjacent rows and the adjacent columns and arranged diagonally have the same length.

Optionally, two adjacent main body portions 111 in at least one of the five rows are arranged in a spaced row. The distances between the two adjacent main body portions 111 arranged in a row are different, and the distances between the two adjacent main body portions 111 arranged in a column are the same. The 13 main body portions 111 are arranged in a first row with 5 main body portions 111, and each row of the second row and the third row has 4 main body portions 111, the three main body portions 111 in the second row and the corresponding three main body portions 111 in the third row are arranged in a row-to-row alignment, and the other main body portion 111 in the second row and the other main body portion 111 in the third row are arranged in a row-to-row staggered manner.

Optionally, two adjacent main body portions 111 in at least one of the five rows are arranged in a spaced row. The distance between two adjacent main body portions 111 arranged in a row is different, and the distance between two adjacent main body portions 111 arranged in a column is different. At least one of the main body portions 111 is disposed in a row between two adjacent main body portions 111 in the same column. Specifically, the 13 main body portions 111 are arranged in a first row and a third row, each row having 5 main body portions 111, and the second row having 3 main body portions 111, and at least one adjacent two main body portions 111 of the 3 main body portions 111 in the second row are arranged in a spaced row. Optionally, the 13 main body portions 111 are arranged in a first row with 5 main body portions 111, and each of a second row and a third row has 4 main body portions 111, two adjacent main body portions 111 in one of the second row and the third row are arranged in a spaced row, and two adjacent main body portions 111 in the other row are arranged in a two-by-two adjacent row.

Alternatively, the spacing between two adjacent main body portions 111 arranged in a row is the same, and the spacing between two adjacent main body portions 111 arranged in a column is the same. Specifically, the 13 main body portions 111 are arranged in a manner that each of the first row and the last row is provided with 2 main body portions 111, each of the middle three rows is provided with 3 main body portions 111, and the main body portion 111 positioned in the first row and the main body portion 111 positioned in the last row are aligned in a column direction. Optionally, the 13 main body portions 111 are arranged in a first row and a last row, each row is provided with 2 main body portions 111, each middle three rows is provided with 3 main body portions 111, one main body portion 111 located in the first row and one main body portion 111 located in the last row are arranged in a column-aligned manner, and the other main body portion 111 located in the first row and the other main body portion 111 located in the last row are arranged in a column-staggered manner.

In the present embodiment, the main body portions 111 located in the first row and the last row are arranged in a row. From the column arrangement perspective, the first and third columns each have 5 main portions 111, and the second column has 3 main portions 111. From the line arrangement perspective, the first and last lines are each provided with 2 main body portions 111, and the middle 3 lines are each provided with 3 main body portions 111. Specifically, the 2 main body portions 111 located in the top row are located in the first column and the third column, respectively. The 2 body parts 111 in the last row are also located in the first and third columns, respectively. The 3 body parts 111 of each row of the middle row are located in the first column, the second column and the third column, respectively. The 13 main body parts 111 are arranged in an axisymmetric shape, one symmetry axis of the axisymmetric shape coincides with a straight line where the 3 main body parts 111 located in the third row are located, and the other symmetry axis of the axisymmetric shape coincides with a straight line where the 3 main body parts 111 located in the second row are located. The 13 main body parts 111 are also arranged in a centrosymmetric manner, and the symmetric center thereof coincides with the center of the main body part 111 located in the third row and the third column.

The distance between two adjacent main body portions 111 in the same column is equal. The distance between two adjacent main body parts in the same row is different. Specifically, the pitch between two adjacent main body portions 111 in the first row is equal to the pitch between two adjacent main body portions 111 in the last row. The distance between two adjacent main body parts 111 in each row in the middle row is equal. The distance between two adjacent main body portions 111 located in the same row and arranged in spaced rows is greater than the distance between two adjacent main body portions 111 located in the same row and adjacent rows. The connecting portions 112 between two adjacent main body portions 111 in the same column have the same length. Each main body portion 111 connects at least two main body portions 111 adjacent thereto by a connecting portion 112. The two main body portions 111 located in the first row are arranged in a broken state, and the two main body portions 111 located in the last row are also arranged in a broken state. A space C is formed between the two main bodies 111 provided in a disconnected state. The wire connecting portion 113 is extended laterally from the main body portion 111 located in the fourth row and the second column. The wire portion 113 passes through the space C formed between the two last-row main body portions 111.

The connecting portion 112 connects two adjacent main body portions 111, and the conductive pad 114 is disposed on the main body portion 111 at the end of the connecting portion 112. The connecting portion 112 includes a first connecting portion 112A connecting two adjacent main body portions 111 in the same row, a second connecting portion 112B connecting two adjacent main body portions 111 in the same column, and a third connecting portion 112C connecting two main body portions 111 in adjacent rows and columns and distributed diagonally. The first connection portion 112A, the second connection portion 112B and the third connection portion 112C are all disposed in a substantially "straight" shape. The first connection portions 112A have the same length. The second connecting portion 112B is perpendicular to the first connecting portion 112A, and the second connecting portion 112B has the same length. The length of the third connection portion 112C is greater than the length of the first connection portion 112A. The length of the third connection portion 112C is greater than the length of the second connection portion 112B. The number of the third connecting portions 112C is 4, and the third connecting portions are respectively located between the two main body portions 111 in the first row and the second column, between the two main body portions 111 in the second row and the second column, between the two main body portions 111 in the fifth row and the fourth row and the second column, and between the two main body portions 111 in the fourth row and the third column. Preferably, the length of the first connection portion 112A is greater than the diameter of the main body portion 111. The diameter of the main body 111 is approximately 21mm, and the length of the first connecting portion 112A is approximately 23 mm. The length of the second connection portion 112B is approximately 15 mm. The length of the third connecting portion 112C is approximately 36 mm. The first connecting portion 112A and the second connecting portion 112B are vertically disposed, the third connecting portion 112C and the adjacent first connecting portion 112A are disposed in an acute angle shape, and the second connecting portion 112B and the adjacent third connecting portion 112C are also disposed in an acute angle shape.

The main body portion 111 may be divided into a peripheral main body portion 111A located at the periphery of the array and a central main body portion 111B surrounded by the peripheral main body portion 111A and located at an inner layer of the array according to the distribution position of the main body portion in the array. Specifically, the central main body portions 111B are 1, and are located at the third row and second column positions of the main body portions 111. The peripheral main body portions 111A are all the main body portions 111 except the main body portion 111 located in the third row and the second column, and there are 12 main body portions. The peripheral main body portion 111A and the central main body portion 111B are connected to each other by a first connecting portion 112A or a second connecting portion 112B. The two adjacent peripheral main body portions 111A are electrically connected through either a first connection portion 112A, a second connection portion 112B, or a third connection portion 112C. Specifically, the two adjacent peripheral main body portions 111A in the same column are connected by the second connection portion 112B. The two adjacent peripheral main body portions 111A in the same row are connected by a first connecting portion 112A. The two peripheral main body portions 111A located in adjacent rows and adjacent columns and arranged diagonally are connected by a third connecting portion 112C. The two adjacent peripheral main body portions 111A arranged in the same row and at an interval are arranged in a disconnected state. The space C is located between two adjacent peripheral main body portions 111A arranged in the same row and column. The peripheral main body portions 111A are disposed in an axisymmetric manner, one symmetry axis thereof coincides with the extending direction of the row in which the central main body portion 111B is located, and the other symmetry axis thereof coincides with the extending direction of the column in which the central main body portion 111B is located.

The wire connecting portion 113 is laterally extended from a peripheral main body portion 111A. Specifically, the wiring portion 113 is extended by the peripheral main body portion 111A located in the fourth row and the second column. The wire portion 113 passes through the space C between two adjacent peripheral main body portions 111A in the last row. The wire connecting portion 113 is located between two adjacent third connecting portions 112C to which the same peripheral main body portion 111A is commonly connected. The wire connecting portion 113 and two third connecting portions 112C, which are connected to the same peripheral main body portion 111A together, are provided in a substantially arrow shape. The wiring portion 113 is provided between two peripheral main body portions 111A positioned in the same row and provided in a divided state. The wire connecting portion 113 is provided substantially perpendicular to the first connecting portion 112A. The wire connecting portion 113 is provided substantially in parallel with the second connecting portion 112B. The wire connecting portion 113 is substantially in a line shape. The angle between the wire connecting portion 113 and the third connecting portion 112C, which are connected to the same peripheral main body portion 111 at the same time, is an acute angle. In other embodiments, the wire connecting portion 113 may also be laterally extended from the main body portion 111 or the peripheral main body portion 111A in the second row and the second column; and is positioned between the two main bodies 111 arranged in a row in a disconnected state, and the wire connecting portion 113 passes through a space C formed between the two main bodies 111.

The insulating plate 12 is arranged in a substantially circular sheet shape. The insulating plate 12 is made of an insulating material, and is adhered to a side surface of the main body 111 of the flexible circuit board 11 away from the body surface of the patient by a sealant (not shown), so that the strength of the flexible circuit board 11 is enhanced, and a flat welding plane can be provided for the welding operation between the conductive plate 114 and the high dielectric sheet 13, thereby improving the product yield. The insulating plate 12 can prevent moisture in the air on the side of the electrical functional assembly 1 away from the body surface of the patient from entering the electrical functional assembly 1, so as to prevent the moisture from contacting with a solder (not shown) between the high dielectric sheet 13 and the main body portion 111 to affect the electrical connection between the main body portion 111 and the high dielectric sheet 13. The insulating plates 12 are disposed in one-to-one correspondence with the main body 111, and the arrangement of the insulating plates is consistent with that of the main body 111.

The high dielectric sheet 13 is arranged in a circular sheet shape. The high dielectric sheet 13 is made of a high dielectric constant material, and has a characteristic of blocking direct current and alternating current, so that the safety of a human body can be ensured. The high dielectric sheet 13 has a dielectric constant of at least more than 1000. The high dielectric sheet 13 has a ring-shaped metal layer 131 attached to the side facing the main body 111, and is soldered to the conductive pad 114 on the main body 111 by solder (not shown). A gap (not shown) formed between the high dielectric sheet 13 and the main body 111 by welding is filled with a sealant (not shown) to protect a solder (not shown) between the high dielectric sheet 13 and the main body 111, so as to prevent the welding part from being broken due to the influence of an external force on the high dielectric sheet 13, and further prevent an alternating electric field from being applied to a tumor part of a patient through the high dielectric sheet 13; meanwhile, it is avoided that moisture in the air enters the gap (not shown) to erode solder (not shown) between the high dielectric sheet 13 and the main body 111, thereby affecting the electrical connection between the high dielectric sheet 13 and the main body 111. The outer ring of the metal layer 131 and the outer edge of the high dielectric sheet 13 are spaced from each other, so that solder (not shown) between the metal layer 131 of the high dielectric sheet 13 and the main body 111 is prevented from overflowing the main body 111 when being melted by heat, and direct current which is not blocked by the high dielectric sheet 13 is prevented from directly acting on the body surface of the patient when the electrode sheet 100 is applied to the body surface corresponding to the tumor part of the patient. The high dielectric sheet 13 has an opening 132 provided therethrough for receiving the temperature sensor 14. The edge of the opening 132 of the high dielectric sheet 13 is spaced from the inner ring of the metal layer 131 of the high dielectric sheet 13, so that it is possible to prevent the solder (not shown) between the metal layer 131 of the high dielectric sheet 13 and the main body 111 from diffusing in the direction of the opening 132 of the high dielectric sheet 13 when melted by heat and causing a short circuit of the temperature sensor 14. The main body 111, the insulating plate 12, and the high dielectric sheet 13 are disposed in one-to-one correspondence, and centers of the three are located on the same straight line.

The main body 111 of the flexible circuit board 11, the insulating plate 12 disposed on the side of the main body 111 of the flexible circuit board 11 away from the surface of the patient, and the high dielectric sheet 13 disposed on the side of the main body 111 of the flexible circuit board 11 facing the epidermis of the patient together constitute the electrode unit 10 of the electrical functional assembly 1. The arrangement of the electrode units 10 of the electrical functional assembly 1 is identical to that of the main body portion 111 of the flexible circuit board 11. The connecting portion 112 is located between two adjacent electrode units 10.

The temperature sensor 14 is fixed to the main body 111 and monitors the temperature of the adhesive member (not shown) and the temperature of the skin of the human body to which the adhesive member (not shown) is applied. When the temperature monitored by the temperature sensor 14 exceeds the upper limit of the human body safety temperature, the electric field generator (not shown) can timely reduce or close the alternating current transmitted to the electrode plate 100, so as to avoid low-temperature scald of the human body. The temperature sensor 14 is soldered to the body portion 111 and then sealed with a sealant (not shown) to prevent moisture from attacking the temperature sensor 14 and causing the temperature sensor 14 to fail.

One end of the lead wire 4 is soldered to the wiring portion 113 of the electrical function component 1, and the other end is provided with a plug (not numbered) electrically connected to the adaptor 300. The plug (not numbered) of the lead 4 can be plugged into an adapter (not shown) of the tumor electric field treatment system 1000, and then the electric connection between the lead 4 and the electric field generator 200 is realized by electrically connecting the adapter 300 and the electric field generator 200. The junction cladding of wiring portion 113 has heat shrinkage bush 41 on wire 4 and the flexible circuit board 11 for the junction of wiring portion 113 is sealed, insulation protection on wire 4 and the flexible circuit board 11, and the improvement intensity supports, avoids wire 4 and electric function component 1 junction to break off, simultaneously can also dustproof and waterproof.

The support 3 is a sheet-like arrangement. The support 3 is provided in plurality. The support 3 is adhered to the backing 2 in a manner to surround the electrode units 10 in the same row. The plurality of supports 3 are arranged at intervals. The support 3 has a plurality of through-holes 31 provided corresponding to the respective electrode units 10. The plurality of through holes 31 are arranged at intervals. The thickness of the support member 3 is substantially the same as that of the electrode unit 10, the plane of the top end of the support member 3 is at the same vertical height as the surface of the electrode unit 10 facing the patient body surface, that is, the surface of the support member 3 close to the patient body surface is flush with the surface of the high dielectric sheet 13 close to the patient body surface, so that an adhesive member (not shown) can be flatly covered on the support member 3 and the electrode unit 10, and the comfort of applying the electrode sheet 100 is improved.

The supporting member 3 can be made of Polyethylene (PE) material, PET material, heat conductive silicone sheet, or soft, chemically stable, light, non-deformable and non-toxic insulating material compounded by polyurethane, polyethylene, dispersant, flame retardant, carbon fiber, etc. Preferably, the support 3 is a flexible foam.

The adhesive member (not shown) is provided in a sheet shape, and has one side attached to the support member 3 and the high dielectric sheet 13 and the other side attached to the body surface of the patient. The adhesive member (not shown) is a conductive hydrogel that acts as a conductive medium to conduct alternating current through the high dielectric sheet 13 to the tumor site of the patient. The number of the adhesive members (not shown) is the same as the number of the supporters 3. The size of the adhesive member (not shown) is substantially the same as the size of the support member 3.

As shown in fig. 2, the backing 2 is in the form of a sheet, which is made mainly of a material compatible with flexibility, breathability, insulation, sterilization. The back lining 2 is provided with a plurality of ventilation holes (not shown) which are penetrated through, so that when the back lining 2 is pasted on the body surface of a patient, the hair follicles and sweat glands of the skin covered by the back lining 2 on the body surface of the patient can freely breathe, and the skin inflammation caused by the skin superficial layer of the patient damaged by the blockage of the hair follicles and sweat glands of the body surface of the patient covered by the back lining 2 is avoided. The backing 2 is a mesh fabric. Specifically, the backing 2 is a mesh nonwoven fabric. The side of the backing 2 facing the patient's body surface is also coated with a compatible adhesive (not shown) for adhering the backing 2 to the patient's body surface in the desired area. The backing 2 is provided with threading holes 21 corresponding to the wiring portions 113 of the flexible circuit board 11. One end of the lead wire 4 passes through the threading hole 21 and is electrically connected to the wiring portion 113. The wires 4 extend into the flexible circuit board 11 from one side of the back lining 2 to be connected with the wiring part 113, so that the problem that the comfort is reduced when the electrode plate 100 is applied due to the fact that a large number of wires 4 are directly pressed on the skin of a patient is solved.

The electrode plate 100 of the utility model is electrically connected with the electric field generator 200 through the lead 4, and the alternating electric signal generated by the electric field generator 200 is transmitted to the main body part 111 of the flexible circuit board 11 by welding one end of the lead 4 with the wiring part 113 of the flexible circuit board 11, and then the purpose of applying the alternating electric field to the tumor part of the patient through the high dielectric sheet 13 for tumor treatment is realized by welding the conductive disc 114 arranged on the main body part 111 of the flexible circuit board 11 with the corresponding high dielectric sheet 13, and the flexible circuit board 11 is provided with at least 10 high dielectric sheets 13 distributed in an array area of at least three rows and four columns, thereby increasing the area of the electrode plate 100 covering the tumor part, enhancing the electric field intensity for tumor electric field treatment, and further ensuring the tumor electric field treatment effect. The electrode sheet 100 of the tumor electric field treatment system 1000 of the present invention is suitable for being attached to the trunk of a patient. For example, when the electrode sheet 100 is applied to the abdomen, one electrode sheet 100 is applied to each of the front side and the rear side of the waist of a patient, one electrode sheet 100 is applied to each of the both sides, and the electrode sheet 100 may be used in combination with other electrode sheets 100 according to the individual body type.

The present invention is not limited to the above preferred embodiments, but rather should be construed as broadly within the spirit and scope of the utility model as defined in the appended claims.

Claims (24)

1. An electrode plate is used for electric field treatment of tumors and is characterized by comprising a flexible circuit board, a plurality of high dielectric pieces and a lead, wherein the flexible circuit board is arranged in a net shape, the high dielectric pieces are arranged on the flexible circuit board, the lead is electrically connected with the flexible circuit board, the flexible circuit board is provided with a plurality of grid nodes, the high dielectric pieces are arranged at the grid nodes corresponding to the flexible circuit board and are arranged in a pairwise interval manner, and the number of the high dielectric pieces is at least 10.

2. The electrode sheet as claimed in claim 1, wherein the plurality of high dielectric sheets are distributed in an area of five rows and three columns, and the number of the high dielectric sheets is 13.

3. The electrode sheet of claim 2, wherein two adjacent high dielectric sheets of at least one of the five rows are arranged in a spaced apart column.

4. The electrode sheet as claimed in claim 3, wherein the pitches between two adjacent high dielectric sheets arranged in a row are different, and the pitches between two adjacent high dielectric sheets arranged in a column are the same.

5. The electrode sheet of claim 4, wherein the 13 high dielectric sheets are arranged in a first row and a third row with 5 high dielectric sheets in each row, 3 high dielectric sheets in the middle row, and the 3 high dielectric sheets in the middle row are arranged in two adjacent rows.

6. The electrode sheet of claim 5, wherein the 13 electrode sheets are arranged in a first row and a last row with 2 high dielectric sheets each, and in a middle three rows with 3 high dielectric sheets each.

7. The electrode sheet according to claim 4, wherein the 13 high dielectric sheets are arranged in a first row with 5 high dielectric sheets, a second row and a third row with 4 high dielectric sheets each, three high dielectric sheets in the second row are arranged in alignment with three corresponding high dielectric sheets in the third row, and the remaining one high dielectric sheet in the second row is arranged in offset alignment with the remaining one high dielectric sheet in the third row.

8. The electrode sheet as claimed in claim 3, wherein the spacing between two adjacent high dielectric sheets arranged in a row is different, and the spacing between two adjacent high dielectric sheets arranged in a column is different.

9. The electrode sheet of claim 8, wherein at least one of the plurality of high dielectric sheets is disposed in a spaced row between two adjacent high dielectric sheets in the same column.

10. The electrode sheet according to claim 9, wherein the 13 high dielectric sheets are arranged in a first row and a third row with 5 high dielectric sheets in each row, and in a second row with 3 high dielectric sheets, and at least one adjacent two high dielectric sheets in the 3 high dielectric sheets in the second row are arranged in a spaced-apart row.

11. The electrode sheet according to claim 9, wherein the 13 high dielectric sheets are arranged in a manner that 5 high dielectric sheets are arranged in a first row, 4 high dielectric sheets are arranged in each of a second row and a third row, two adjacent high dielectric sheets in one of the second row and the third row are arranged in a spaced-apart row, and two adjacent high dielectric sheets in the other row are arranged in a pair of adjacent rows.

12. The electrode sheet according to claim 2, wherein said 13 high dielectric sheets are arranged diagonally in adjacent rows or adjacent columns or adjacent rows and adjacent columns, two by two.

13. The electrode sheet as claimed in claim 2, wherein the pitches between two adjacent high dielectric sheets arranged in a row are the same, and the pitches between two adjacent high dielectric sheets arranged in a column are the same.

14. The electrode sheet of claim 13, wherein the 13 high dielectric sheets are arranged in a first row with 2 high dielectric sheets per row and a last row with 3 high dielectric sheets per row, and the high dielectric sheet in the first row is aligned with the high dielectric sheet in the last row in a column direction.

15. The electrode sheet of claim 13, wherein the 13 high dielectric sheets are arranged in a first row with 2 high dielectric sheets per row and a last row with 3 high dielectric sheets per row, one high dielectric sheet in the first row being aligned with one high dielectric sheet in the last row, and the other high dielectric sheet in the first row being staggered from the other high dielectric sheet in the last row.

16. The electrode sheet of claim 1, wherein the flexible circuit board has a plurality of connecting portions between two adjacent high dielectric sheets, and the grid node is an intersection of at least two connecting portions.

17. The electrode pad of claim 16, wherein the flexible circuit board further comprises a wire connecting portion for welding with a wire, and the wire comprises a heat-shrinkable sleeve for covering the welding portion of the wire connecting portion.

18. The electrode tab of claim 17, wherein at least one of the plurality of high dielectric sheets adjacent to each other in the same row is provided in a broken state and forms a space through which the wire portion passes.

19. The electrode sheet of claim 18, wherein the flexible circuit board is provided with a plurality of conductive pads arranged at intervals and corresponding to the high dielectric sheets one to one, and the conductive pads are welded with the corresponding high dielectric sheets.

20. The electrode sheet of claim 19, further comprising a plurality of temperature sensors assembled on the flexible circuit board, the high dielectric sheet being provided with openings corresponding to the temperature sensors.

21. The electrode sheet as claimed in claim 20, wherein each high-dielectric sheet is connected to at least two high-dielectric sheets adjacent thereto by a connecting portion.

22. An electric field tumor treatment system, comprising an electric field generator and an electrode plate according to any one of claims 1 to 21 electrically connected to the electric field generator.

23. The electric field tumor therapy system according to claim 22, further comprising an adapter electrically connected to the electric field generator, wherein the electrode pads are detachably mounted on the adapter.

24. The electric field tumor therapy system according to claim 23, wherein the electrode patch has a plug at one end of the wire for connecting with the adapter.

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