Electric field treatment system and electrode plate thereof

Abstract

The invention provides an electric field treatment system and an electrode plate thereof, the electrode plate comprises a transducer array, and the transducer array comprises a plurality of electrode units arranged in an array mode and a plurality of connecting parts connecting two adjacent electrode units. Each electrode unit comprises a main body part, a conducting strip which is arranged on the main body part and is provided with an opening, and a first conducting trace and a second conducting trace which are arranged on the main body part, the conducting strip and the second conducting trace are positioned on the same side of the main body part, and the first conducting trace is positioned on the other side of the main body part; the conducting strip is provided with an avoiding groove which laterally extends from the open hole and is communicated with the open hole. The second conducting trace extends in the avoiding groove and is arranged at an interval with the conducting strip. According to the electric field treatment system and the electrode plate thereof, the avoiding groove is formed in the conducting strip on the main body part so that the second conducting trace located on the same side as the avoiding groove can be routed, meanwhile, the first conducting trace is arranged on the other opposite side of the main body part, the thickness of the main body part does not need to be increased, and circuit layout is simple.

Description

TECHNICAL FIELD

[0001] The present application relates to an electric field therapy system and an electrode sheet thereof. BACKGROUND

[0002] Intermediate frequency alternating electric field therapy has been proved to be an effective method for tumor treatment, which can interfere with the mitotic process of cancer cells and induce cancer cell apoptosis, and can be used for tumor treatment. An electric field therapy system generally includes an electric field generator, an adapter, and multiple pairs of electrode sheets. The electric field generator generates an alternating electric signal, and the adapter transmits the alternating electric signal to the electrode sheets. The electrode sheets are attached to the skin surfaces on opposite sides of a patient in pairs, and an alternating electric signal is applied between each pair of electrode sheets to non-invasively apply a tumor treatment electric field to the target area.

[0003] The electrode sheet includes a transducer array, which is provided with a plurality of electrode units, a connecting portion connecting adjacent two electrode units, and a wiring portion extending outward from one of the connecting portions. The electrode units generate heat during long-term tumor electric field therapy. To prevent heat accumulation from causing discomfort or low-temperature burns at the electrode unit attachment site on the body surface, the transducer array is usually provided with a temperature sensing unit at the center of some of the electrode units to detect the temperature at the electrode unit attachment site on the body surface and adjust the application of the treatment electric field in a timely manner according to the detection results. The temperature sensing unit has a signal end and a ground end. The electrode unit is provided with a ground pad and a signal pad connected to the temperature sensing unit, and a ground trace connected to the ground pad and a signal trace connected to the signal pad on its circuit board. Since the direct current signal used for temperature detection is transmitted through the ground trace and the signal trace, while the alternating current signal used for tumor treatment is transmitted through the electrode unit, and the two signals need to be independent of each other to prevent signal crosstalk; in addition, the electrode unit is too thick, which increases the weight of the electrode sheet, causing poor attachment feeling, increasing the burden on the patient, and other problems. Therefore, it is necessary to solve the problem of laying out each signal line without increasing the thickness of the circuit board of the electrode unit and reducing the mutual influence between each signal line.

[0004] Therefore, it is necessary to provide an electric field therapy system and an electrode sheet thereof that can solve the above problems. SUMMARY

[0005] The present application provides an electric field therapy system and an electrode sheet thereof with simple wiring and reduced signal crosstalk.

[0006] Specifically, the application is realized by the following technical scheme: an electrode sheet comprising a transducer array, the transducer array comprising a plurality of electrode units arranged in an array and a plurality of connecting portions connecting adjacent two electrode units, the electrode unit comprising a main body portion, a conductive sheet provided on the main body portion and having an opening, a first conductive trace and a second conductive trace provided on the main body portion, the conductive sheet and the second conductive trace being located on the same side of the main body portion, the first conductive trace being located on the other side of the main body portion, the conductive sheet being provided with an avoiding groove extending laterally from the opening and communicating with the opening, and the second conductive trace extending in the avoiding groove and being spaced apart from the conductive sheet.

[0007] Further, the avoiding groove penetrates the conductive sheet along the thickness direction of the conductive sheet.

[0008] Further, the electrode unit comprises a first conductive pad and a second conductive pad provided on the main body portion and located in the opening, the second conductive trace is electrically connected with the second conductive pad, and the first conductive trace is electrically connected with the first conductive pad.

[0009] Further, the electrode unit further comprises a covering film covering the first conductive trace on the main body portion, an insulating layer covering the main body portion and the conductive sheet and exposing part of the conductive sheet, and a dielectric layer covering the insulating layer and the conductive sheet exposed by the insulating layer.

[0010] Further, the connecting portion is provided with a third conductive trace connecting the conductive sheets of adjacent two electrode units and a fourth conductive trace electrically connected with the second conductive trace of the electrode unit, the third conductive trace is provided with a wiring groove, and the fourth conductive trace extends in the wiring groove and is spaced apart from the third conductive trace.

[0011] Further, the connecting portion is further provided with a fifth conductive trace electrically connected with the corresponding first conductive trace, the connecting portion comprises a first connecting portion connecting adjacent two electrode units in a column direction and a second connecting portion connecting adjacent two electrode units in a row direction, the fifth conductive trace on the first connecting portion is located below the wiring groove and within the projection range of the wiring groove, and the fifth conductive trace, the fourth conductive trace and the third conductive trace do not overlap each other in the projection direction.

[0012] Further, the first conductive trace of the electrode unit provided with one avoiding groove is located below the avoiding groove and within the projection range of the avoiding groove, and the first conductive trace, the conductive sheet and the second conductive trace do not overlap each other in the projection direction.

[0013] Furthermore, the clearance groove of the electrode unit is connected to the wiring groove on the corresponding connection portion.

[0014] Furthermore, the first conductive trace located below the clearance groove that communicates with the wiring groove on the first connecting portion is located within the projection range of the clearance groove, and the first conductive trace does not overlap with the conductive sheet and the second conductive trace.

[0015] This application also provides another technical solution: an electric field therapy system, which includes an electric field generator, an adapter and the aforementioned electrode pads.

[0016] The electric field therapy system and its electrode pads of this application, by setting a clearance groove on the conductive pad on the main body of the electrode unit to allow the second conductive trace located on the same side to run, and setting the first conductive trace on the opposite side of the main body, do not require increasing the thickness of the main body, simplifying the wiring layout. The first and second conductive traces of the electrode unit with a clearance groove are both located within the orthographic projection of the clearance groove and do not overlap with each other, which can reduce crosstalk between different signals.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the framework of an electric field therapy system according to an embodiment of this application;

[0019] Figure 2 This is an exploded perspective view of an electrode sheet according to one embodiment of this application;

[0020] Figure 3 for Figure 2 A planar schematic diagram of the transducer array of the electrode sheets shown;

[0021] Figure 4 For along Figure 3 A cross-sectional view along the AA direction;

[0022] Figure 5 for Figure 2 The diagram shows the front wiring of the transducer array, in which the alloy layer, dielectric layer, insulating layer, and second insulating layer have been removed.

[0023] Figure 6 for Figure 2 The diagram shows the reverse wiring of the transducer array, where the cover film and the second cover film have been removed;

[0024] Figure 7 for Figure 2The diagram shows a plan view of a single electrode unit of the transducer array, where the alloy layer, dielectric layer, insulating layer, and temperature sensing unit have been removed.

[0025] Figure 8 and Figure 7 Similar, for Figure 2 A planar schematic diagram of a single electrode unit of the transducer array shown, wherein the alloy layer, dielectric layer, and temperature sensing unit have been removed;

[0026] Figure 9 For along Figure 3 A cross-sectional schematic diagram of the BB section.

[0027] Explanation of reference numerals in the attached figures:

[0028] Electric field therapy system 100, electric field generator 10, adapter 20, electrode sheet 30, backing 31, transducer array 32, adhesive part 33, electrode unit 34, central electrode unit 34A, peripheral electrode unit 34B, main body 341, conductive sheet 342, opening 3421, clearance groove 3422, insulating layer 343, inner insulating part 3431, hollow insulating part 3432, outer ring insulating part 3433, insulating tape 3434, dielectric layer 344, alloy layer 345, conductive pad; 346, first conductive pad; 3461, second conductive pad; 3462, first conductive trace; 347, second conductive trace; 348, cover film; 349, connecting part; 35, first connecting part; 35A, second connecting part; 35B, base; 351, third conductive trace; 352, fourth conductive trace; 353, second insulating layer; 354, fifth conductor trace; 355, second cover film; 356, wiring groove; 357, wiring part; 36, gold finger; 361. Detailed Implementation

[0029] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses, systems, devices, and methods consistent with some aspects of this application.

[0030] refer to Figure 1 As shown, the electric field therapy system 100 includes an electric field generator 10, an adapter 20, and several pairs of electrode pads 30. The adapter 20 electrically connects the electric field generator 10 to each electrode pad 30. The electric field generator 10 generates an alternating current signal that meets the treatment requirements. The adapter 20 receives the alternating current signal output from the electric field generator 10 and transmits the alternating current signal to the electrode pads 30, thereby generating a therapeutic electric field for treating tumors between the same pair of electrode pads 30.

[0031] Reference Figure 2 As shown in the figure, the electrode sheet 30 comprises a backing 31, a transducer array 32 adhered to the backing 31, and a plurality of adhesive pieces 33 covering corresponding parts of the transducer array 32. The transducer array 32 is adhered to the body surface corresponding to the tumor site of the patient through the backing 31, and applies an alternating electric field to the tumor site of the patient to interfere with or prevent mitosis of the tumor cells of the patient, thereby achieving the purpose of treating the tumor.

[0032] The backing 31 is provided in a sheet shape and is made of a flexible, breathable and insulating material. The backing 31 has the characteristics of softness, lightness, moisture resistance and breathability, so that the patient's skin surface can remain dry when the backing 31 is adhered to the patient's body surface for a long time. A biocompatible adhesive (not shown) is applied to the front surface of the backing 31 facing the patient's body surface, for tightly adhering the backing 31 to the body surface corresponding to the tumor site of the patient.

[0033] The transducer array 32 comprises a plurality of electrode units 34 arranged in an array, a plurality of connecting portions 35 connecting adjacent two electrode units 34, and a wiring portion 36 extending laterally from one of the connecting portions 35. In the present embodiment, the transducer array 32 is provided with nine circular electrode units 34 arranged in a three-row and three-column matrix. A temperature sensing unit (not shown) is further provided on some of the electrode units 34 at the center thereof. During the tumor electric field treatment, the temperature sensing unit (not shown) can monitor and feedback the temperature of the body surface adhered to the corresponding electrode unit 34, so as to prevent the skin of the patient's body surface from being scalded by the excessive heat generated by the electrode unit 34. Among the nine electrode units 34 of the transducer array 32, the electrode unit 34 in the second row and the second column is defined as a central electrode unit 34A, and the other electrode units 34 are peripheral electrode units 34B. The transducer array 32 is provided with eight temperature sensing units (not shown) as described above, and the temperature sensing units (not shown) are respectively arranged on a corresponding peripheral electrode unit 34B.

[0034] In combination Figures 3 to 5 As shown in the figure, the electrode unit 34 comprises a flexible main body portion 341, a conductive sheet 342 provided on the skin-facing side of the main body portion 341, an insulating layer 343 provided on the conductive sheet 342 and exposing part of the conductive sheet 342, and a dielectric layer 344 covering the insulating layer 343 and the exposed conductive sheet 342. The electrode unit 34 further comprises an alloy layer 345 provided on the dielectric layer 344, and the adhesive piece 33 is covered on the alloy layer 345. The skin-facing side of the main body portion 341 is defined as the front surface, and the side away from the skin is defined as the back surface.

[0035] The main body 341 has the characteristics of light weight, thin thickness, bendability, high flexibility, etc. In the present embodiment, the main body 341 is made of polyimide or polyester film material. The main body 341 is in the form of a circular sheet and has a thickness of not more than 300 μm, and preferably, the thickness of the main body 341 is 100 μm-300 μm.

[0036] Referring to Figures 4 to 6 As shown, the conductive sheet 342 is arranged on the main body 341 and is in the form of a circular ring and is concentrically arranged with the main body 341. The conductive sheet 342 is made of rolled copper foil or electrolytic copper foil with a thickness of 10 μm-75 μm, which can be fixed on the surface of the corresponding main body 341 by electroplating or adhesive film, etc. The outer contour of the conductive sheet 342 is smaller than that of the main body 341, so that the conductive sheet 342 can be completely supported by the main body 341, and at the same time, the conductive sheet 342 is prevented from being exposed to contact with the human body to cause safety hazards to the patient. Preferably, the distance between the outer contour of the conductive sheet 342 and the corresponding outer contour of the main body 341 is 1.2 mm-2.5 mm. The central position of the conductive sheet 342 is provided with an opening 3421. The main body 341 of the peripheral electrode unit 34B is further provided with a conductive pad 346 which is arranged in the opening 3421 and is spaced apart from the conductive sheet 342. The conductive pad 346 includes a first conductive pad 3461 and a second conductive pad 3462, which are used to electrically connect with a temperature sensing unit (not shown).

[0037] The electrode unit 34 further includes a first conductive trace 347 arranged on the back surface of the main body 341 and a second conductive trace 348 arranged on the front surface of the main body 341. The first conductive trace 347 is electrically connected with the first conductive pad 3461, and the second conductive trace 348 is electrically connected with the second conductive pad 3462, so as to realize electrical connection with the temperature sensing unit (not shown). The first conductive trace 347 is a temperature signal line of the electrode unit 34, and the second conductive trace 348 is a ground signal line of the electrode unit 34. The conductive sheet 342 is provided with one or more avoiding grooves 3422 along the center to the outer edge thereof. The avoiding grooves 3422 penetrate the conductive sheet 342 along the thickness direction and the radial direction of the conductive sheet 342, and the avoiding grooves 3422 are in communication with the opening 3421. The second conductive trace 348 extends radially from the second conductive pad 3462 along the avoiding grooves 3422 to the edge of the main body 341. The second conductive trace 348 located at the avoiding grooves 3422 is spaced apart from the conductive sheet 342 and is insulated.

[0038] Referring to Figure 7As shown, the insulating layer 343 is arranged on the main body 341, and covers part of the conductive sheet 342, part of the conductive pad 346 and the second conductive trace 348 to protect the conductive sheet 342, part of the conductive pad 346 and the second conductive trace 348. The thickness of the insulating layer 343 is 10-50 μm. The insulating layer 343 comprises an inner insulating portion 3431 at the opening 3421, a hollow insulating portion 3432 extending radially outward from the outer periphery of the inner insulating portion 3431 and arranged in a hollow shape, and an outer ring insulating portion 3433 at the outer periphery of the hollow insulating portion 3432. The outer edge of the inner insulating portion 3431 covers the inner edge of the conductive sheet 342 at the opening 3421, the inner edge of the outer ring insulating portion 3433 covers the outer edge of the conductive sheet 342, and the outer contour of the outer ring insulating portion 3433 overlaps the outer contour of the main body 341. The hollow insulating portion 3432 is arranged in a hollow shape on the conductive sheet 342 and exposes part of the conductive sheet 342, and comprises a plurality of strip-shaped insulating bands 3434. The thickness of the insulating band 3434 is 10-50 μm. The strip-shaped insulating band 3434 of the hollow insulating portion 3432 is arranged corresponding to the avoiding groove 3422 to cover each avoiding groove 3422 of the conductive sheet 342. The width of the insulating band 3434 is greater than the width of the avoiding groove 3422 to completely cover the avoiding groove 3422 and the second conductive trace 348 in the avoiding groove 3422, so that the second conductive trace 348 is not exposed, and the electrical signal crosstalk between the second conductive trace 348 and the conductive sheet 342 can be reduced.

[0039] Back to Figure 4The dielectric layer 344 is laid on the insulating layer 343 of the electrode unit 34 and the conductive sheet 342 exposed from the insulating layer 343. For the peripheral electrode unit 34B, the dielectric layer 344 is also laid on the temperature sensing unit (not shown). The size of the dielectric layer 344 is larger than that of the conductive sheet 342, so that the dielectric layer 344 can completely cover the conductive sheet 342 to prevent the conductive sheet 342 from being in non-capacitive coupling with the human body when the electrode sheet 30 is attached to the surface of the patient's body, thereby ensuring the safety of the human body. The size of the dielectric layer 344 is slightly smaller than that of the main body 341, so that the dielectric layer 344 can be fully supported by the main body 341. The dielectric layer 344 is a high polymer dielectric layer with high dielectric constant and low dielectric loss, which is made of a thin film material with non-fixed crystal direction, high flexibility and high toughness. In the embodiment, the dielectric layer 344 is made of a polymer with dielectric coefficient not less than 20 and dielectric strength not less than 40 V / μm, to avoid being broken down under normal applied voltage. The polymer can be a polymer with relaxor ferroelectric behavior, such as P(VDF-TrFE-CTFE), P(VDF-TrFE-CFE) or P(VDF-TrFE-CFE-CTFE), or a polyamide composite material, such as piperazine-biuret copolymer polyamide. The dielectric layer 344 can be formed on the surface of the conductive sheet 342 and the insulating layer 343 by vapor deposition, sputtering or ion plating, or by printing, spraying or casting. The thickness of the dielectric layer 344 is not more than 300 μm, and is preferably 3-10 μm.

[0040] The alloy layer 345 is arranged on the dielectric layer 344, and the adhesive member 33 is arranged on the alloy layer 345. The alloy layer 345 is used as an auxiliary layer to increase the conductive performance between the dielectric layer 344 and the adhesive member 33. The size of the alloy layer 345 is slightly smaller than that of the dielectric layer 344. The material of the alloy layer 345 can be one or more of zinc-aluminum alloy, zinc-copper alloy, silver-titanium or graphite. The alloy layer 345 can be deposited on the surface of the dielectric layer 344 by vapor deposition. The thickness of the alloy layer 345 is inversely proportional to its dielectric loss, i.e. the thicker the alloy layer 345, the lower the dielectric loss; the thickness of the alloy layer 345 is inversely proportional to the tightness of the combination with the dielectric layer 344, i.e. the thicker the alloy layer 345, the lower the tightness of the combination with the dielectric layer 344. To obtain an electrode unit 34 with lower dielectric loss and stronger tightness, the thickness of the dielectric layer 344 is preferably 50-500 times the thickness of the alloy layer 345, and the thickness of the alloy layer 345 is preferably 3-100 nm, to ensure good and stable combination between the alloy layer 345 and the dielectric layer 344 and low dielectric loss through the alloy layer 345.

[0041] The back surface of the main body part 341 is also provided with a cover film 349, which is arranged outside the first conductive trace 347 to protect the first conductive trace 347 from being exposed.

[0042] Reference is made to Figure 5 As shown, the number of the avoidance grooves 3422 provided in each electrode unit 34 is the same as the number of the connection parts 35 connected thereto, so as to facilitate the connection and routing of the first conductive trace 347 and the second conductive trace 348 between the electrode units 34. In combination Figure 4 As shown, for the electrode unit 34 provided with only one avoidance groove 3422, the projections of the first conductive trace 347 and the second conductive trace 348 in the orthographic projection direction are both completely located within the projection range of the avoidance groove 3422 and do not overlap with each other. Such arrangement helps to reduce the mutual crosstalk between the electrical signals transmitted by the first conductive trace 347 and the second conductive trace 348, and improve the accuracy of the transmitted electrical signals. In addition, the first conductive trace 347 located on the back surface of the main body part 341 is completely located within the projection range of the avoidance groove 3422 and does not overlap with the conductive sheet 342, so that the first conductive trace 347 and the cover film 349 or the conductive sheet 342 and the insulating layer 343 will not be raised due to the pressure of the first conductive trace 347 located on the back surface of the main body part 341 during the process of hot pressing, etc., so as to ensure the smooth surface of the conductive sheet 342 to avoid affecting the subsequent process of the dielectric layer 344.

[0043] Reference is made to Figure 8 and Figure 9 As shown, in the present embodiment, the connection part 35 comprises a base part 351, a third conductive trace 352 arranged on the front surface of the base part 351, a fourth conductive trace 353 arranged in the base part 351 and insulated from the third conductive trace 352, a second insulating layer 354 covering the third conductive trace 352 and the fourth conductive trace 353, a fifth conductive trace 355 arranged on the back surface of the base part 351, and a second cover film 356 covering the fifth conductive trace 355. The third conductive trace 352 is provided with a routing groove 357, and the fourth conductive trace 353 is located in the routing groove 357 and extends along the routing groove 357. The connection part 35 is connected to the corresponding electrode unit 34, the routing groove 357 is in communication with the corresponding avoidance groove 3422 of the electrode unit 34 connected thereto, the third conductive trace 352 is electrically connected to the conductive sheet 342 of the electrode unit 34 connected thereto, the fourth conductive trace 353 is electrically connected to the second conductive trace 348 of the electrode unit 34 connected thereto, and the fifth conductive trace 355 is electrically connected to the first conductive trace 347 of the corresponding electrode unit 34.

[0044] Reference is made to Figure 3As shown, the connecting portion 35 includes a first connecting portion 35A and a second connecting portion 35B. The first connecting portion 35A is located between any two adjacent electrode units 34 in the same column of electrode units 34 to connect the two adjacent electrode units 34 in the same column. The second connecting portion 35B is located between two adjacent columns of electrode units 34 to connect two adjacent electrode units 34 in the same row in the two adjacent columns of electrode units 34 to connect the two adjacent columns of electrode units 34. The first connecting portion 35A and the second connecting portion 35B have the same width, but the length of the second connecting portion 35B is greater than the length of the first connecting portion 35A.

[0045] For the first connecting portion 35A, in the orthogonal projection direction, the fourth conductive trace 353 and the fifth conductive trace 355 are completely located within the projection range of the trace groove 357, and the third conductive trace 352, the fourth conductive trace 353, and the fifth conductive trace 355 are all mutually non-overlapping, so that mutual crosstalk of electrical signals transmitted by the third conductive trace 352, the fourth conductive trace 353, and the fifth conductive trace 355 can be avoided.

[0046] For the electrode unit 34 provided with the plurality of avoidance grooves 3422, the orthogonal projections of the first conductive trace 347 located in the avoidance groove 3422 connected to the first connecting portion 35A and the second conductive trace 348 located on the opposite side are all located within the projection range of the avoidance groove 3422 and are mutually non-overlapping.

[0047] The first conductive trace 347, the second conductive trace 348, the third conductive trace 352, the fourth conductive trace 353, and the fifth conductive trace 355 are collectively referred to as conductive traces (not numbered). Among them, the first conductive trace 347 and the fifth conductive trace 355 are correspondingly electrically connected and used to transmit temperature measurement signals of a corresponding temperature sensing unit (not shown), the second conductive trace 348 and the fourth conductive trace 353 are correspondingly electrically connected and used to transmit ground signals of a temperature sensing unit (not shown), and the third conductive trace 352 and the corresponding conductive sheet 342 are electrically connected and used to transmit alternating current signals to the conductive sheet 342.

[0048] The wiring portion 36 is provided by extending outwardly from a second connecting portion 35B located between two columns of electrode units 34. The wiring portion 36 is provided with a plurality of gold fingers 361 exposed on its surface and a plurality of sixth conductive traces (not numbered) corresponding to the gold fingers 361 and electrically connected thereto on the two side surfaces of the free end thereof. The first conductive trace 347, the second conductive trace 348, and the conductive sheet 342 of each electrode unit 34 are respectively connected to the corresponding sixth conductive trace (not numbered) on the wiring portion 36 through the corresponding conductive trace (not numbered) on the connecting portion 35, and are electrically connected to the corresponding gold finger 361.

[0049] The connecting portions 35, the wiring portion 36, and the main body portion 341, the conductive sheet 342, the conductive traces (not numbered), the insulating layer 343, and the cover film 349 of each electrode unit 34 collectively constitute a flexible circuit board (not numbered) of the transducer array 32. From the perspective of the formation of the electrode unit 34, the dielectric layer 344 is disposed on the side of the flexible circuit board (not numbered) facing the human skin, and the temperature sensing unit (not shown) is selectively disposed on the side of the main body portion 341 of the flexible circuit board (not numbered) facing the human skin. In the present embodiment, the above-mentioned conductive traces (not numbered) of the flexible circuit board (not numbered) can be simply summarized as including one conductive trace connecting the conductive sheets 342 of the electrode units 34, one conductive trace transmitting the ground signal of the temperature sensing unit (not shown), and eight conductive traces (not numbered) transmitting the temperature measurement signals of the temperature sensing unit (not shown) and independent of each other. Correspondingly, the wiring portion 36 is provided with ten gold fingers 361.

[0050] Returning to Figure 2 As shown, the adhesive member 33 has double-sided adhesion, one side of the adhesive member 33 is adhered to the electrode unit 34, and the other side is adhered to the skin surface of the human body as a covering layer, so that the transducer array 32 can be well adhered to the body surface of the patient and the skin surface of the body surface of the patient can also be kept moist. The adhesive member 33 is preferably a conductive adhesive member, specifically, the adhesive member 33 is a conductive hydrogel.

[0051] The electrode sheet 30 further includes a conductive wire (not shown) electrically connected to the wiring portion 36 of the transducer array 32, and the distal end of the conductive wire (not shown) away from the wiring portion 36 is provided with a plug (not shown) electrically connected to the adapter 20, and the adapter 20 is electrically connected to the electric field generator 10 to realize signal transmission between the electric field generator 10 and the electrode sheet 30.

[0052] The electrode sheet 30 further includes release paper (not shown) attached to the outer side of the adhesive member 33 and the backing 31 to protect the backing 31 and the adhesive member 33 from being contaminated. The electrode sheet 30 can be covered by only one piece of release paper (not shown) on the adhesive member 33 and the backing 31, or can be covered by two or more pieces of release paper (not shown) on the adhesive member 33 and the backing 31. When in use, the release paper (not shown) is torn off, and the electrode sheet 30 is attached to the body surface corresponding to the tumor site of the human body.

[0053] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. An electrode sheet comprising a transducer array, the transducer array comprising a plurality of electrode units arranged in an array and a plurality of connecting portions connecting adjacent electrode units, characterized in that: The electrode unit includes a main body, a conductive sheet disposed on the main body and having an opening, a first conductive trace and a second conductive trace disposed on the main body. The conductive sheet and the second conductive trace are located on the same side of the main body, and the first conductive trace is located on the other side of the main body. The conductive sheet has a clearance groove that extends laterally from the opening and communicates with the opening. The second conductive trace extends in the clearance groove and is spaced apart from the conductive sheet.

2. The electrode sheet according to claim 1, characterized in that: The clearance groove extends through the conductive sheet along its thickness direction.

3. The electrode sheet according to claim 2, characterized in that: The electrode unit includes a first conductive pad and a second conductive pad disposed on the main body and located within the opening. The second conductive trace is electrically connected to the second conductive pad, and the first conductive trace is electrically connected to the first conductive pad.

4. The electrode sheet according to claim 2, characterized in that: The electrode unit further includes a cover film that presses the first conductive trace onto the main body, an insulating layer that covers the main body and the conductive sheet and exposes a portion of the conductive sheet, and a dielectric layer that covers the insulating layer and the conductive sheet that exposes the insulating layer.

5. The electrode sheet according to claim 1, characterized in that: The connecting portion is provided with a third conductive trace connecting the conductive sheets of two adjacent electrode units and a fourth conductive trace electrically connected to the second conductive trace of the electrode unit. The third conductive trace is provided with a routing groove, and the fourth conductive trace extends in the routing groove and is spaced apart from the third conductive trace.

6. The electrode sheet according to claim 5, characterized in that: The connecting portion is further provided with a fifth conductive trace electrically connected to the corresponding first conductive trace. The connecting portion includes a first connecting portion that connects two adjacent electrode units in the column direction and a second connecting portion that connects two adjacent electrode units in the same row in the row direction. The fifth conductive trace on the first connecting portion is located below the wiring groove and within the orthographic projection range of the wiring groove. The fifth conductive trace does not overlap with the fourth conductive trace and the third conductive trace in the orthographic projection direction.

7. The electrode sheet according to claim 1, characterized in that: The first conductive trace of the electrode unit of the provided clearance groove is located below the clearance groove and within the projection range of the clearance groove. The first conductive trace does not overlap with the conductive sheet and the second conductive trace in the orthographic projection direction.

8. The electrode sheet according to claim 5, characterized in that: The clearance groove of the electrode unit is connected to the wiring groove on the corresponding connection part.

9. The electrode sheet according to claim 6, characterized in that: The first conductive trace located below the clearance groove, which communicates with the wiring groove on the first connecting part, is within the projection range of the clearance groove, and the first conductive trace does not overlap with the conductive sheet and the second conductive trace.

10. An electric field therapy system, characterized in that: It includes an electric field generator and an electrode sheet as described in any one of claims 1 to 9.

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