CN216824488U - Tumor electric field treatment system and electrode plate thereof - Google Patents

Abstract

The utility model provides a tumour electric field treatment system and electrode slice thereof, including the flexible circuit board, locate a plurality of high dielectric pieces on the flexible circuit board and with flexible circuit board electric connection's wire, the flexible circuit board is including distributing a plurality of main parts in the array region that is triplex row four rows at least, a plurality of connecting portions that are located between the adjacent main part and a wiring portion of being connected with the wire, a plurality of high dielectric pieces are located respectively on the corresponding main part, the main part is 10 at least, divide into peripheral main part and the central main part by peripheral main part encirclement, peripheral main part all connects through connecting portion. The utility model discloses an electrode slice applys alternating electric field in order to carry out tumour treatment to patient's tumour position through locating 10 at least high dielectric pieces on the flexible circuit board, can avoid arousing that electric field treatment is not enough because of tumour size, position difference, and increase electrode unit coverage area strengthens applying to the electric field strength at tumour position, improves treatment.

Description

Tumor electric field treatment system and electrode plate thereof

Technical Field

The utility model relates to a tumour electric field treatment system and electrode slice thereof belongs to medical instrument technical field.

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 use of an electric field to treat tumors is also one of the leading fronts of research and development, and a Tumor treatment electric field (TTF) is a method of applying an alternating electric field with low intensity and medium frequency to cancer cells, thereby interfering the mitotic process of the cancer cells, inhibiting mitosis of the cancer cells, inducing apoptosis of the cancer cells, and thus achieving a therapeutic 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 tumors 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 difference of the body of the patient, the difference of the tumor position, the tumor position and the tumor size, when the existing electrode plate is adopted for treatment, the electric field intensity applied to the tumor position for treatment through the electrode plate is insufficient, or the electric field does not cover the partial area of the tumor, thereby influencing 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 slice and tumour electric field treatment system suitable for truck tumour electric field treatment.

The electrode plate of the utility model is realized by the following technical scheme: an electrode slice is used for carrying out electric field treatment on a patient trunk tumor part during the electric field treatment of tumors, and comprises a flexible circuit board, a plurality of high dielectric slices arranged on the flexible circuit board and a lead electrically connected with the flexible circuit board, the flexible circuit board comprises a plurality of main body parts distributed in an array area which is at least arranged in three rows and four columns, a plurality of connecting parts positioned between adjacent main body parts and a wiring part connected with a lead, at least 10 of the body portions, the high dielectric sheets being respectively provided on the corresponding body portions, the body portion is divided into a peripheral body portion and a central body portion surrounded by the peripheral body portion by its position in the array, the connecting parts are positioned between two adjacent peripheral main body parts, between the adjacent peripheral main body part and the central main body part and between the two adjacent central main body parts, and the peripheral main body parts are connected through the connecting parts.

Further, the wire connecting portion is laterally extended from a main body portion.

Further, the wire connecting portion is laterally extended from a connecting portion.

Further, the connecting part comprises a first connecting part which connects two adjacent main body parts in the same row.

Furthermore, the connecting part also comprises a second connecting part, and the second connecting part is connected with two adjacent main body parts in the same column.

Furthermore, the connecting part further comprises a third connecting part, and the third connecting part is positioned in two main body parts which are distributed in adjacent rows and adjacent columns in a diagonal shape.

Further, the two adjacent outer ring main body parts are connected through either a first connecting part or a second connecting part or a third connecting part.

Further, the first connecting portion is located between the peripheral main body portion and the central main body portion adjacent to each other in the same row and between two peripheral main body portions adjacent to each other in the same row.

Further, the second connecting portion is located between two adjacent peripheral main body portions in the same column and between two adjacent central main body portions in the same column.

Further, the third connecting portion is located between two peripheral main body portions of adjacent rows and adjacent columns and arranged diagonally.

Furthermore, the plurality of peripheral main body parts and the first connecting part, the second connecting part and the third connecting part which are positioned between the peripheral main body parts are arranged in a runway shape.

Further, the first connecting parts connecting the two adjacent main body parts in the same row have the same length.

Further, the second connecting parts connecting the two adjacent main body parts in the same column have the same length.

Furthermore, the third connecting portion are arranged at four corners of the main body portion arranged in an array in an L-shape.

Further, the length of the third connecting part is at least greater than half of the length of the first connecting part.

Further, the length of the third connecting portion is greater than the length of the second connecting portion.

Further, the wire connecting portion is laterally extended from a central main body portion.

Further, the wire connecting portion is laterally extended by a second connecting portion.

Further, the flexible circuit board further includes a reinforcing portion disposed opposite to the wiring portion.

Further, the reinforcing portion and the wire connecting portion are located on opposite sides of a connecting portion connected to the wire connecting portion, respectively.

Furthermore, the flexible printed circuit board further comprises a plurality of insulating plates which are arranged in one-to-one correspondence with the main body part of the flexible printed circuit board, and the insulating plates and the corresponding high dielectric sheets are respectively arranged on two sides of the corresponding main body part.

Further, the flexible circuit board comprises a backing, wherein the flexible circuit board is adhered to the backing, and the backing is provided with threading holes for the lead wires to pass through.

Further, the main body parts are arranged in five rows and five columns, and the number of the main body parts is 13.

The utility model discloses a tumour electric field treatment system still provides a tumour electric field treatment system, its electrode slice that includes electric field generator and above-mentioned and electric field generator electric connection.

The utility model discloses an electrode slice applys alternating electric field in order to carry out tumour treatment to patient's tumour position through locating 10 at least high dielectric pieces on the flexible circuit board, can avoid arousing the not enough treatment effect that influences of electric field treatment because of tumour size, position difference, and increase electrode unit coverage area strengthens applying to the electric field strength at tumour position, improves treatment.

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 invention as claimed.

Drawings

Fig. 1 is a three-dimensional combination view of the electrode plate 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.

Description of reference numerals:

the electrode sheet 100, the electrical function component 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 disc 114, the conductive core 115, the reinforcement portion 116, the insulating plate 12, the high dielectric sheet 13, the metal layer 131, the opening hole 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 shrink tube 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, apparatuses, and methods consistent with certain aspects of the present invention.

The tumor electric field treatment system comprises an electric field generator (not shown) and an electrode plate 100 connected with the electric field generator, wherein the electrode plate 100 is pasted on the body surface of a patient, and a treatment electric field generated by the electric field generator (not shown) acts on the human body. The electrode sheet 100 according to an embodiment 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 utility model discloses an electrode slice 100 laminates in the corresponding body surface of patient's tumour position through backing 2 to exert alternating electric field in order to disturb or prevent patient's tumor cell's mitosis to patient's tumour position through electric function component 1, thereby realize the purpose of treatment tumour.

Referring to fig. 3, the electrical function assembly 1 includes a flexible circuit board 11, an insulating plate 12 and a high dielectric sheet 13 respectively disposed on opposite sides of the flexible circuit board 11, and a temperature sensor 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 high dielectric sheet 13 is arranged on one side of the flexible circuit board 11 close to the body surface of the patient, and the insulating board 12 is arranged on one side of the flexible circuit board 11 far away from the body surface of the patient. The electric function module 1 is adhered to the backing 2 by adhering a biocompatible adhesive (not shown) applied to the backing 2 to the corresponding portions of the insulating plate 12 and the flexible circuit board 11.

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 4. The main body 111 is provided in a circular sheet shape. 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. Preferably, the number of body portions is 13. The 13 main body portions 111 may be distributed in a matrix area of three rows and five columns, or may be distributed in a matrix area of 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 two main body portions 111 in adjacent rows in the same column have the same pitch.

The connecting portion 112 connects two adjacent main body portions 111, and includes a first connecting portion 112A connecting two adjacent main body portions 111 located in the same row and at an interval, a second connecting portion 112B connecting two main body portions 111 located in the same column and at an adjacent row, and a third connecting portion 112C connecting two main body portions 111 located in an adjacent row and an 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 portions 112C are located at four corners of the main body portions 111 arranged in an array, and are arranged in an "L" shape, an arc shape, or an inclined "one" shape. Specifically, the number of the third connection portions 112C is 4, and the third connection portions are respectively located between the two main body portions 111 in the first row, the second column and the first row, between the two main body portions 111 in the first row, the fourth column and the fifth column, between the two main body portions 111 in the last row, the second column and the fourth column, and between the two main body portions 111 in the last row, the fourth column and the fifth 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 connection portion 112A is 23 mm. The length of the second connection portion 112B is greater than the diameter of the body portion 111.

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. The number of the peripheral main body portions 111A is 10, and every two peripheral main body portions are electrically connected with each other through a first connection portion 112A, a second connection portion 112B, or a third connection portion 112C. The number of the central main body portions 111B is 3, and the central main body portions are located in the same row. The peripheral main body 111A is disposed in an axisymmetric manner, and the symmetry axis thereof coincides with the straight line where the three central main bodies 111B are located. The 10 peripheral main body portions 111A and the first, second, and third connecting portions 112A, 112B, and 112C located between the peripheral main body portions 111A have a substantially racetrack-shaped structure. The central body 111B and the second connecting portion 112B between the central bodies 111B are arranged substantially in a line.

The wire connecting portion 113 is laterally extended from a second connecting portion 112B. Specifically, the wire connecting portion 113 is laterally extended by the second connecting portion 112B between two adjacent central body portions 111B. 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 wire connecting portion 113 and the second connecting portion 112B are vertically disposed. The wire connecting portion 113 is disposed in a substantially flat shape with the first connecting portion 112A. In other embodiments, the wire connecting portion 113 may be extended from one of the central main body portions 111B located at both ends of the 3 central main body portions 111B. Specifically, the wire connecting portion 113 may be provided by one of two central main body portions 111B at both ends extending laterally along the extending direction in which the central main body portions 111B are arranged in a row. 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 flexible circuit board 11 further has a reinforcing portion 116 disposed opposite to the wiring portion 113 for providing traction to the wiring portion 113, so as to prevent the electrode sheet 100 from being affected by uneven stress when the electrode sheet 100 is applied to the body surface of the tumor region of the patient. Specifically, the reinforcing portion 116 is extended from the second connecting portion 112B of the laterally extended wire connecting portion 113. The reinforcing portion 116 and the wire connecting portion 113 are located on opposite sides of the second connecting portion 112B connected to the wire connecting portion 113, respectively. The reinforcing portion 116 has one end connected to the second connecting portion 112B connected to the wire connecting portion 113 and the other end connected to the second connecting portion 112B adjacent to the second connecting portion 112B and located between two adjacent peripheral main body portions 111A. The reinforcing portion 116 is bridged between two adjacent and parallel second connecting portions 112B. The reinforcing portion 116, the wire connecting portion 113, and the second connecting portion 112B connected to the wire connecting portion 113 are arranged substantially in a cross shape.

As shown in fig. 3, a conductive pad 114 is provided on a side surface of the main body 111 facing the high dielectric sheet 13, and is soldered to the high dielectric sheet 13 by solder (not shown). The center of the conductive pad 114 coincides with the center of the body portion 111. The conductive pad 114 of the main body 111 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 conductive core 115 includes an inner arc (not numbered) and an outer arc (not numbered) that are 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 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 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 plate 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 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 scalding the human body at low temperature. 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 wire 4 is welded to the wiring portion 113 of the electrical functional assembly 1, and the other end is butted against a plug of an electric field generator (not shown). 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 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 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 a threading hole 21 corresponding to the wire connecting portion 113. 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 tumor electric field treatment system of the utility model is suitable for being pasted on the trunk of a patient for use. For example when pasting and applying in the belly use, electrode slice 100 is respectively pasted to the front side and the rear side of patient's waist, and electrode slice 100 is respectively pasted to both sides, and is different according to individual size, also can match other electrode slices 100 and use, the utility model discloses electrode slice 100 is more suitable for pasting and is applying in narrower side waist department. The utility model discloses electrode slice 100 is equipped with at least 10 main part 111 and the one-to-one in the array region that is the triplex row four rows at least and arranges and locates high dielectric piece 13 on main part 111, can apply alternating electric field in order to carry out tumour treatment to patient's tumour position to solve current electrode slice and apply to tumour position and carry out the electric field intensity of treatment not enough or the electric field does not cover tumour part region's problem, guaranteed electric field treatment effect.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (24)

1. An electrode slice can apply an alternating electric field to the trunk tumor part of a patient during tumor electric field treatment, it is characterized by comprising a flexible circuit board, a plurality of high dielectric sheets arranged on the flexible circuit board and a lead electrically connected with the flexible circuit board, the flexible circuit board comprises a plurality of main body parts distributed in an array area which is at least arranged in three rows and four columns, a plurality of connecting parts positioned between adjacent main body parts and a wiring part connected with a lead, at least 10 main body portions, the high dielectric sheets being respectively provided on the respective main body portions, the main body portions being divided into a peripheral main body portion and a central main body portion surrounded by the peripheral main body portion in accordance with their positions in the array, the connecting parts are positioned between two adjacent peripheral main body parts, between the adjacent peripheral main body part and the central main body part and between the two adjacent central main body parts, and the peripheral main body parts are connected through the connecting parts.

2. An electrode sheet according to claim 1, wherein the terminal portion is provided extending laterally from a main body portion.

3. The electrode sheet according to claim 1, wherein the terminal portion is laterally extended from a connecting portion.

4. The electrode sheet according to claim 1, wherein the connecting portion includes a first connecting portion connecting two adjacent main body portions in the same row.

5. The electrode sheet according to claim 4, wherein the connecting portion further comprises a second connecting portion connecting two adjacent main body portions in the same column.

6. The electrode sheet according to claim 5, wherein the connecting portion further comprises a third connecting portion, and the third connecting portion is located between two main body portions in adjacent rows and columns and is diagonally distributed.

7. The electrode sheet of claim 6, wherein the adjacent two peripheral body portions are connected by either a first connection portion or a second connection portion or a third connection portion.

8. The electrode sheet according to claim 4, wherein the first connecting portions are located between peripheral main body portions adjacent to each other in the same row and the central main body portion and between two peripheral main body portions adjacent to each other in the same row.

9. The electrode sheet according to claim 5, wherein the second connecting portion is located between two peripheral main body portions adjacent to each other in the same column and between two central main body portions adjacent to each other in the same column.

10. The electrode sheet according to claim 6, wherein the third connecting portion is located between two peripheral main body portions of adjacent rows and adjacent columns and arranged diagonally.

11. The electrode sheet according to claim 6, wherein the peripheral main body portions and the first, second, and third connecting portions between the peripheral main body portions are arranged substantially in a racetrack shape.

12. The electrode sheet according to claim 6, wherein the first connecting portions connecting two adjacent main body portions in the same row have the same length.

13. The electrode sheet according to claim 6, wherein the second connecting portions connecting the adjacent two main body portions in the same column have the same length.

14. The electrode sheet according to claim 6, wherein the third connecting portions are L-shaped and are provided at four corners of the main body portions arranged in an array.

15. The electrode sheet of claim 6, wherein the length of the third connection portion is at least greater than half the length of the first connection portion.

16. The electrode sheet according to claim 6, wherein the length of the third connection portion is greater than the length of the second connection portion.

17. An electrode sheet as defined in claim 1, wherein the terminal portion is laterally extended from a central main body portion.

18. An electrode sheet according to claim 2, wherein the terminal portion is provided extending laterally from a second connecting portion.

19. The electrode tab of claim 18, wherein the flexible circuit board further comprises a reinforcement portion disposed opposite the terminal portion.

20. The electrode tab according to claim 19, wherein the reinforcing portion and the wire connection portion are located on opposite sides of a connection portion to which the wire connection portion is connected, respectively.

21. The electrode sheet according to claim 1, further comprising a plurality of insulating plates disposed in one-to-one correspondence with the main body portion of the flexible circuit board, the insulating plates and the corresponding high dielectric sheets being disposed on both sides of the corresponding main body portion, respectively.

22. The electrode sheet of claim 1, further comprising a backing to which the flexible circuit board is adhered, the backing being provided with threading holes through which the lead wires pass.

23. The electrode sheet of claim 1, wherein the main body portion is arranged in five rows and five columns, and the number of the main body portions is 13.

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

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