CN216536554U - 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 and comprise a plurality of high dielectric sheets for applying an alternating electric field to a tumor part of a patient, a plurality of connecting parts positioned among the high dielectric sheets and conducting wires electrically connected with the high dielectric sheets, wherein the connecting parts are connected with two adjacent high dielectric sheets, the high dielectric sheets are electrically connected with at least two adjacent high dielectric sheets through the corresponding connecting parts, and the number of the high dielectric sheets is at least 10. The electrode slice of the utility model applies an alternating electric field to the tumor part of a patient through at least 10 high dielectric sheets to carry out tumor treatment, 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 disadvantages, 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 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 patch disclosed in the Chinese patent application No. 112717272 is used for treatment, the electric field intensity applied to the tumor position through the electrode patch 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 tumor electric field treatment system to solve the problems in the background art.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electrode plate suitable for electric field treatment of trunk tumors and an electric field treatment system for tumors.

The electrode plate of the utility model is realized through the following technical scheme: an electrode sheet for electric field treatment of tumor comprises a plurality of high dielectric sheets for applying an alternating electric field to a tumor site of a patient, a plurality of connecting portions between the plurality of high dielectric sheets, and a conducting wire electrically connected with the plurality of high dielectric sheets, wherein each connecting portion connects two adjacent high dielectric sheets, each high dielectric sheet is electrically connected with at least two adjacent high dielectric sheets through the corresponding connecting portion, and the number of the high dielectric sheets is at least 10.

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

Further, the connecting portions between two adjacent high dielectric slabs in the same row have the same length, the connecting portions between two adjacent high dielectric slabs in the same column have the same length, and the connecting portions between two high dielectric slabs in adjacent rows and columns arranged diagonally have the same length.

Further, the length of the connecting portion between two adjacent high dielectric slabs of the same row is greater than the size of the high dielectric slabs.

Furthermore, the connecting portion between two adjacent high-order dielectric slabs in the same row and the connecting portion between two adjacent high-order dielectric slabs in the same column are arranged vertically, and the connecting portion between two high-order dielectric slabs in two adjacent rows and two high-order dielectric slabs in two adjacent columns arranged diagonally and the connecting portion between two adjacent high-order dielectric slabs in the same row or the same column are arranged in an acute angle shape.

Furthermore, the two adjacent high dielectric pieces in the same row are arranged in a spaced column.

Further, the length of the connecting portion between two high dielectric slabs located in adjacent rows and adjacent columns and arranged diagonally is greater than the length of the connecting portion between two adjacent high dielectric slabs located in the same column.

Further, the length of the connecting portion between two high dielectric sheets located in adjacent rows and adjacent columns and arranged diagonally is greater than half of the length of the connecting portion between two adjacent high dielectric sheets located in the same row.

Furthermore, the high-dielectric-piece-type printed circuit board also comprises a wiring part, one end of the wiring part is electrically connected with a high dielectric piece, and the other end of the wiring part is welded with a lead.

Furthermore, the connecting part is provided with conductive discs at two opposite ends of the connecting part, and the high dielectric sheet is provided with a metal layer welded with the conductive discs.

Further, the two adjacent high dielectric slabs are arranged in a breaking manner to form a gap between the two adjacent high dielectric slabs, and the two adjacent high dielectric slabs arranged in the breaking manner are located in the same row.

Further, the high dielectric sheet electrically connected to the wire connection portion is disposed opposite to the space through which the wire connection portion passes.

Furthermore, the 13 high dielectric pieces are distributed in an array area surrounded by five rows and five columns in an arrangement mode that the first row and the last row are respectively provided with 2 high dielectric pieces, and the middle three rows are respectively provided with 3 high dielectric pieces.

Further, the two high dielectric sheets in the first row and the last row are respectively located in the second column and the fourth column, and the 3 high dielectric sheets in each row in the middle three rows are respectively located in the first column, the third column and the fifth column.

Further, the connecting portions include a first connecting portion between two adjacent high dielectric slabs in the same row, a second connecting portion between two adjacent high dielectric slabs in the same column, and a third connecting portion between two high dielectric slabs in adjacent columns in adjacent rows and diagonally arranged.

Further, each of the two high dielectric slabs located in the first row is connected to the high dielectric slab located in the adjacent row and located diagonally thereto through a third connection portion, and each of the two high dielectric slabs located in the last row is connected to the high dielectric slab located in the adjacent row and located diagonally thereto through a third connection portion.

And one end of the wire connection part is electrically connected with the high dielectric sheets positioned in the fourth row and the third row, and the other end of the wire connection part is welded with one end of the wire.

Further, the wire connection portion and a third connection portion, which connects the same high dielectric sheet together therewith, are arranged in an acute angle shape.

Further, the high dielectric sheet electrically connected to the wire connection portion is connected to the two third connection portions, and the wire connection portion is located between the two third connection portions connected to the same high dielectric sheet.

Further, the two third connecting portions and the wire connecting portion, which commonly connect the same high dielectric sheet, are arranged in an arrow shape.

Further, the conducting wire connects the plurality of high dielectric sheets together in series with a plurality of connecting portions between the high dielectric sheets.

Furthermore, the insulating plate is arranged corresponding to the high dielectric sheet, the tail end of the connecting part is provided with a main body part, and the high dielectric sheet and the insulating plate are respectively arranged on two opposite sides of the main body part.

The utility model also provides a tumor electric field treatment system which comprises an electric field generator and the electrode plate electrically connected with the electric field generator.

Furthermore, one end of the lead of the electrode plate is provided with a plug which is inserted with the electric field generator.

Furthermore, the electrode plate also comprises an adapter electrically connected with the electric field generator, and one end of the lead of the electrode plate is provided with a plug inserted with the adapter.

The electrode slice applies alternating electric field to the tumor part of the patient through at least 10 high dielectric sheets to treat the tumor, can avoid the influence of insufficient electric field treatment on treatment effect caused by the difference of the size, the position and the position of the tumor, increases the coverage area of the electrode unit, 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.

Fig. 4 is a plan view of a flexible circuit board of the electrode pad in fig. 2.

Figure 5 is a plan view of the high dielectric sheet of the electrical functional assembly of figure 3.

Description of reference numerals:

the electrode sheet 100, the electrical function 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 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 space C, the insulating plate 12, the high dielectric sheet 13, the metal layer 131, the opening 132, the temperature sensor 14, the backing 2, the support 3, the through hole 31, the adhesive 4, the lead wire 5, and the heat shrink sleeve 51.

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.

The tumor electric field treatment system includes an electric field generator (not shown) and an electrode pad 100 connected to the electric field generator. The electrode sheet 100 is attached to the body surface of a patient, and a therapeutic electric field generated by an electric field generator (not shown) is applied to the human body. The electrode sheet 100 of the tumor electric field treatment system of the utility model is applied to the body, such as the chest, the abdomen, etc., 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 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 4 adhered to the supporting member 3, and a lead 5 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 an electric field generator (not shown) to a tumor site of a patient through a plurality of high dielectric sheets 13 provided on a flexible circuit board 11, thereby performing electric field treatment on the tumor site of the patient.

The flexible circuit board 11 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 the wires 5. 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 side of the main body 111 facing the high dielectric sheet 13 is provided with a conductive pad 114 for soldering with the high dielectric sheet 13 by solder (not shown) to assemble the high dielectric sheet 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 when the 4 conductive cores 115 of the conductive disc 114 of the main body portion 111 are welded with the high dielectric sheet 13, the stress balance of each welding point is ensured, the overall welding balance of the high dielectric sheet 13 is ensured, the welding quality is improved, and the situation that the welding part on the side with a larger interval between the high dielectric sheet 13 and the main body portion 111 is weak in strength and easy to break due to the fact that the welding stress is unbalanced and the high dielectric sheet 13 tilts is avoided; 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 both may be distributed in a matrix area with three rows and five columns, or may be distributed in a matrix area with five rows and five columns. In the present embodiment, the main body portions 111 are distributed in an array region arranged in five rows and five columns, from the row arrangement perspective, each row of the first row and the last row is provided with 2 main body portions 111, and each row of the middle three rows is provided with 3 main body portions 111; from the column arrangement perspective, each of the three columns of the first column, the third column, and the fifth column has 3 main body portions 111, and each of the second column and the fourth column has 2 main body portions 111. Specifically, the 2 main body portions 111 in the first row are respectively located in the second column and the fourth column, the 3 main body portions 111 in each row in the middle three rows are respectively located in the first column, the third column and the fifth column, and the 2 main body portions 111 in the last row are respectively located in the second column and the fourth column. Two adjacent main body portions 111 in each row are arranged in a spaced row. The adjacent two main body portions 111 in the same row have the same pitch. The distance between two adjacent main body portions 111 in the same column is equal. Each main body portion 111 is connected to at least two main body portions 111 adjacent thereto through a connecting portion 112. The two main bodies 111 located in the last row are separated from each other, and a space C is formed between the two main bodies 111. The wire connecting portion 113 is extended laterally from the main body portion 111 located in the fourth row and the third 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 located in the same row and spaced column, a second connecting portion 112B connecting two adjacent main body portions 111 located in the same column and adjacent row, and a third connecting portion 112C connecting two main body portions 111 located in adjacent row and adjacent column and distributed diagonally. The first connecting portions 112A are located between two adjacent main body portions 111 in every row and every column, and have the same length. The second connecting portion 112B is located between two adjacent main body portions 111 in each of the first, third, and fifth rows, and has the same length. The length of the third connection portion 112C is greater than half 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 first connection portion 112A and the second connection portion 112B are both disposed in a substantially "straight" shape. The third connecting portion 112C is substantially L-shaped or inclined.

The number of the third connecting portions 112C is 8, and the third connecting portions are respectively located between the two main body portions 111 in the first second row and the first second row, between the two main body portions 111 in the first second row and the second third row, between the two main body portions 111 in the second third row and the first fourth row, between the two main body portions 111 in the first fourth row and the second fifth row, between the two main body portions 111 in the last second row and the first fourth row, between the two main body portions 111 in the last second row and the fourth third row, between the two main body portions 111 in the fourth row and the last fourth row, and between the two main body portions 111 in the last fourth row and the fourth row. 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 connection portion 112A is 23 mm. The length of the second connection portion 112B is smaller than the diameter of the body portion 111. The length of the second connection portion 112B is 15 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 111 may be divided into a peripheral main body 111A located at the periphery of the array and a central main body 111B surrounded by the peripheral main body 111A and located at an inner layer of the array according to the distribution position of the main body 111 in the array. Specifically, the number of the peripheral main body portions 111A is 10, and the number of the central main body portions 111B is 3 and is located in the same column. The peripheral main body portion 111A and the central main body portion 111B are connected to each other two by two via connecting portions 112. 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 a second connecting portion 112B, the two adjacent peripheral main body portions 111A in the same row are connected by a first connecting portion 112A, and the two adjacent peripheral main body portions 111A in the adjacent rows and columns and arranged diagonally are connected by a third connecting portion 112C. The peripheral main body portions 111A and the first connecting portion 112A, the second connecting portion 112B, and the third connecting portion 112C located between two adjacent peripheral main body portions 111A are arranged in an approximately octagonal shape with one end open. The peripheral main body 111A is disposed in an axisymmetric manner, and the symmetry axis thereof coincides with the straight line on which the 3 central main bodies 111B are located.

The central body 111B is 3 bodies 111 located in the third row. Each of the central main body portions 111B and the peripheral main body portions 111A adjacent thereto are connected with each other by a first connecting portion 112A or a third connecting portion 112C. The two adjacent central main body portions 111B are electrically connected by a second connecting portion 112B. Specifically, the central main body portion 111B and the adjacent peripheral main body portions 111A located in the same row are electrically connected through the first connecting portion 112A, and the central main body portion 111B and the adjacent peripheral main body portions 111A located in the adjacent rows and the adjacent columns and arranged diagonally are electrically connected through the third connecting portion 112C, so that the central main body portion 111B and the adjacent peripheral main body portions 111A are connected through at least two connecting portions 112, and the positions between the peripheral main body portions 111A and the central main body portion 111B are ensured to be relatively fixed, the connection is stable, and the high dielectric sheet 13 can be soldered on the flexible circuit board 11 conveniently. That is, the central body portion 111B located in the third row is connected to the peripheral body portion 111A located in the same row thereof only by the first connecting portion 112A, and is disposed in a disconnected state between the adjacent peripheral body portions 111A located in adjacent rows and adjacent columns and arranged diagonally. Each of the remaining two central main body portions 111B is connected not only to the peripheral main body portions 111A located in adjacent rows and columns and diagonally arranged thereto through the third connecting portion 112C, but also to the peripheral main body portions 111A located in the same row therewith through the first connecting portion 112A.

The wire connecting portion 113 is extended laterally from one of the two main body portions 111 located at the end of the 3 main body portions 111 located at the third row. Specifically, the wire connecting portion 113 is laterally extended from the main body 111 of the fourth row and the third column. The wire connecting portion 113 is extended from the central main body portion 111B located at the end portion toward a region distant from the array of the main body portions 111. The wire connecting portion 113 is located between the two third connecting portions 112C, and connects the central body portion 111B located at the end portion simultaneously with the two third connecting portions 112C. The wire connecting portion 113 and two third connecting portions 112C, which are connected to the same central body portion 111B in common, are provided substantially in an arrow shape. The wire connecting 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 disposed 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 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 located in the second row and the third column or the central main body portion 111B; 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. In other embodiments, the wire connecting portion 113 may also be laterally extended from a second connecting portion 112B located between two adjacent central main body portions 111B, and the wire connecting portion 113 is perpendicular to the second connecting portion 112B; the wire connecting portion 113 is provided substantially in a T-shape with the second connecting portion 112B extending the wire connecting portion 113.

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 while the strength of the flexible circuit board 11 is enhanced, a flat welding plane can be provided for the welding operation between the conductive plate 114 and the high dielectric sheet 13, and the product yield is improved. 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 arrangement of the insulating plates 12 and the high dielectric plates 13 is consistent with that of the main body 111, and the insulating plates and the high dielectric plates are distributed in an array area arranged in five rows and five columns.

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 the arrangement 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 body portion 111 for monitoring the temperature of the adhesive member 4, thereby monitoring the temperature of the skin of the human body applied with the adhesive member 4. 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. The temperature sensor 14 is disposed on the peripheral main body 111 among the plurality of main bodies 111 arranged in an array. That is, the temperature sensor 14 is provided on the peripheral body portion 111A.

One end of the lead 5 is welded to the wiring portion 113 of the electrical functional assembly 1, and the other end is provided with a plug (not numbered) electrically connected to an electric field generator (not shown). The plug (not numbered) of the lead 5 can be directly inserted into the electric field generator (not shown) or inserted into an adapter (not shown) of the tumor electric field treatment system, and then the electric connection between the lead 5 and the electric field generator (not shown) is realized by electrically connecting the adapter (not shown) and the electric field generator (not shown). The junction cladding of wiring portion 113 has heat shrinkage bush 51 on wire 5 and the flexible circuit board 11 for the junction of wiring portion 113 is sealed, insulation protection on wire 5 and the flexible circuit board 11, and the improvement intensity supports, avoids wire 5 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 surrounding the electrode units 10 arranged in rows. 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 consistent with that of the electrode unit 10, the plane where the top end of the support member 3 is located and the surface of the electrode unit 10 facing the patient body surface are at the same vertical height, 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 the pasting member 4 can be flatly covered on the support member 3 and the electrode unit 10, and the comfort of pasting 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 4 is arranged in a sheet shape, one side of which is attached to the support member 3 and the high dielectric sheet 13, and the other side is attached to the body surface of the patient. The adhesive member 4 is a conductive hydrogel which 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 4 is the same as the number of the supporting members 3. The size of the adhesive member 4 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 air holes (not shown) which are arranged in a penetrating way, so that when the back lining 2 is pasted on the surface of a patient, the hair follicles and sweat glands of the skin of the patient covered by the back lining 2 can freely breathe, and the skin inflammation caused by the damage to the superficial layer of the skin of the patient due to the blockage of the sweat glands and hair follicles of the 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 electrode plate 100 of the utility model is inserted with an electric field generator (not shown) through a plug (not numbered) of a lead 5 of the electrode plate, and is welded with a wiring part 113 of a flexible circuit board 11 through one end of the lead 5 to realize the transmission of an alternating electric signal generated by the electric field generator (not shown) to a main body part 111 of the flexible circuit board 11, and further, a conductive disc 114 arranged on the main body part 111 of the flexible circuit board 11 is welded with a corresponding high dielectric sheet 13 to realize the purpose of applying an alternating electric field to a tumor part of a patient through the high dielectric sheet 13 for tumor treatment, and at least 10 high dielectric sheets 13 distributed in at least three rows and four columns of array regions are arranged on the flexible circuit board 11, so that the area of the electrode plate 100 covering the tumor part is increased, the electric field intensity for tumor electric field treatment is enhanced, and the tumor electric field treatment effect can be ensured. The electrode sheet 100 of the electric field tumor therapy system 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 (25)

1. An electrode slice for tumor electric field treatment, which is characterized in that: the high-dielectric-piece-type tumor treatment device comprises a plurality of high dielectric pieces for applying an alternating electric field to a tumor part of a patient, a plurality of connecting parts located between the plurality of high dielectric pieces and conducting wires electrically connected with the plurality of high dielectric pieces, wherein the connecting parts are connected with two adjacent high dielectric pieces, the high dielectric pieces are electrically connected with at least two adjacent high dielectric pieces through the corresponding connecting parts, and the number of the high dielectric pieces is at least 10.

2. The electrode sheet of claim 1, wherein the plurality of high dielectric sheets is distributed in an array region arranged in five rows and five columns, and the plurality of high dielectric sheets is 13.

3. The electrode sheet as claimed in claim 2, wherein the connecting portions between two adjacent high dielectric sheets in the same row have the same length, the connecting portions between two adjacent high dielectric sheets in the same column have the same length, and the connecting portions between two high dielectric sheets in adjacent rows and columns arranged diagonally have the same length.

4. The electrode sheet as claimed in claim 2, wherein the length of the connection portion between two adjacent high dielectric sheets in the same row is greater than the size of the high dielectric sheet.

5. The electrode sheet according to claim 2, wherein the connecting portion between two adjacent high dielectric sheets in the same row is disposed perpendicularly to the connecting portion between two adjacent high-order sheets in the same column, and the connecting portion between two high dielectric sheets in the adjacent row and the adjacent column, which are diagonally arranged, is disposed at an acute angle to the connecting portion between two adjacent high dielectric sheets in the same row or the same column.

6. The electrode sheet of claim 2, wherein two adjacent high dielectric sheets in the same row are arranged in spaced columns.

7. The electrode sheet as claimed in claim 2, wherein the length of the connecting portion between two high dielectric sheets located in adjacent rows and adjacent columns and arranged diagonally is greater than the length of the connecting portion between two adjacent high dielectric sheets located in the same column.

8. The electrode sheet as claimed in claim 7, wherein the length of the connecting portion between two high dielectric sheets located in adjacent rows and columns and arranged diagonally is greater than half the length of the connecting portion between two adjacent high dielectric sheets located in the same row.

9. An electrode sheet as claimed in any one of claims 3 to 8, wherein the connecting portion is provided with conductive pads at opposite ends thereof, and the high dielectric sheet is provided with a metal layer welded thereto.

10. The electrode sheet according to claim 9, further comprising a wire portion having one end electrically connected to the high dielectric sheet and the other end welded to the wire.

11. The electrode sheet according to claim 10, wherein two adjacent high dielectric sheets are disposed in a broken manner to form a space therebetween, and the two adjacent high dielectric sheets disposed in the broken manner are disposed in the same row.

12. The electrode tab according to claim 11, wherein a high dielectric sheet electrically connected to a wire connection portion passing through the space is disposed opposite to the space.

13. The electrode sheet according to any one of claims 3 to 8, wherein 13 high dielectric sheets are distributed in an array region surrounded by five rows and five columns in an arrangement manner that 2 high dielectric sheets are arranged in the first row and the last row respectively, and 3 high dielectric sheets are arranged in the middle three rows and each row respectively.

14. The electrode sheet of claim 13, wherein the two high dielectric sheets in the first and last rows are in the second and fourth columns, respectively, and the 3 high dielectric sheets in each row in the middle three rows are in the first, third and fifth columns, respectively.

15. The electrode sheet according to claim 14, wherein the connecting portions include a first connecting portion between two adjacent high dielectric sheets in the same row, a second connecting portion between two adjacent high dielectric sheets in the same column, and a third connecting portion between two high dielectric sheets in adjacent columns in adjacent rows and diagonally arranged.

16. The electrode sheet as claimed in claim 15, wherein each of the two high dielectric sheets located in the first row is connected to the high dielectric sheet located in the adjacent row and located diagonally thereto through the third connecting portion, and each of the two high dielectric sheets located in the last row is connected to the high dielectric sheet located in the adjacent row and located diagonally thereto through the third connecting portion.

17. The electrode tab according to claim 16, further comprising a wire portion welded to the wire, wherein one end of the wire portion is electrically connected to the high dielectric sheet in the fourth row and the third row, and the other end of the wire portion is welded to one end of the wire.

18. An electrode tab as claimed in claim 17, wherein the terminal portion and a third connecting portion which connects the same high dielectric sheet together are arranged in an acute angle.

19. The electrode tab of claim 17, wherein the high dielectric tab electrically connected to the wire portion is connected to two third connection portions, the wire portion being located between the two third connection portions to which the same high dielectric tab is commonly connected.

20. The electrode tab as claimed in claim 17, wherein two third connecting portions and the terminal portion, which commonly connect the same high dielectric sheet, are disposed in an arrow shape.

21. The electrode sheet of claim 1, wherein the plurality of high dielectric sheets are connected together in series by the conductive wire together with a plurality of connections between the high dielectric sheets.

22. The electrode sheet according to claim 1, further comprising an insulating plate disposed corresponding to the high dielectric sheet, wherein the connecting portion has a main body portion at a distal end thereof, and the high dielectric sheet and the insulating plate are disposed on opposite sides of the main body portion, respectively.

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

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

25. The electric field tumor therapy system of claim 23, further comprising an adapter electrically connected to the electric field generator, wherein a plug is provided at one end of the lead of the electrode plate for connecting with the adapter.

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