阅读说明：本技术 一种电极贴片 (Electrode paster ) 是由 段红杰 张建义 刘胜军 于 2021-02-04 设计创作，主要内容包括：本发明涉及一种电极贴片,其包括柔性基底、柔性电路板以及固设于所述柔性基底上的若干泡沫垫和电极片,所述泡沫垫上设有若干定位孔,所述电极片设置在所述定位孔内,所述电极片与柔性电路板焊接在一起；所述电极片包括通过密封胶粘结在一起的绝缘垫片和绝缘电极,所述绝缘垫片固设在所述柔性基底上,所述柔性电路板位于所述绝缘垫片和绝缘电极之间,与所述绝缘电极焊接在一起；所述绝缘电极中部开设有过孔,所述过孔处设有热敏电阻,所述热敏电阻与柔性电路板电性连接在一起；所述泡沫垫和电极片表面涂敷有凝胶。(The invention relates to an electrode patch, which comprises a flexible substrate, a flexible circuit board, a plurality of foam pads and electrode plates, wherein the foam pads and the electrode plates are fixedly arranged on the flexible substrate; the electrode plate comprises an insulating gasket and an insulating electrode which are bonded together through a sealing adhesive, the insulating gasket is fixedly arranged on the flexible substrate, and the flexible circuit board is positioned between the insulating gasket and the insulating electrode and is welded with the insulating electrode; a through hole is formed in the middle of the insulated electrode, a thermistor is arranged at the through hole, and the thermistor is electrically connected with the flexible circuit board; the surfaces of the foam pad and the electrode plate are coated with gel.)

1. An electrode patch characterized by: the flexible printed circuit board comprises a flexible substrate (1), a flexible circuit board (7), a plurality of foam pads (2) and electrode plates, wherein the foam pads (2) and the electrode plates are fixedly arranged on the flexible substrate (1), a plurality of positioning holes (2-1) are formed in the foam pads (2), the electrode plates are arranged in the positioning holes (2-1), and the electrode plates and the flexible circuit board (7) are welded together;

the electrode plate comprises an insulating gasket (3) and an insulating electrode (4) which are bonded together through a sealant (5), the insulating gasket (3) is fixedly arranged on the flexible substrate (1), and the flexible circuit board (7) is positioned between the insulating gasket (3) and the insulating electrode (4) and welded with the insulating electrode (4);

a through hole (4-1) is formed in the middle of the insulated electrode (4), a thermistor (9) is arranged at the through hole (4-1), and the thermistor (9) is electrically connected with the flexible circuit board (7);

the surfaces of the foam pad (2) and the electrode plate are coated with gel (6).

2. An electrode patch as claimed in claim 1, wherein: still include transmission line (11), be equipped with the shielding layer on transmission line (11), the link of flexible circuit board (7) is equipped with anticreep solder joint (8), anticreep solder joint (8) with the shielding layer is connected, is used for preventing to incite somebody to action circuit on flexible circuit board (7) breaks, flexible circuit board (7) still overlap with the welding department of transmission line (12) and be equipped with adapter sleeve (11).

3. An electrode patch as claimed in claim 1, wherein: four welding points (10) are arranged on the insulated electrode (4), and the four welding points (10) are welded with the flexible circuit board (7).

4. An electrode patch as claimed in claim 1, wherein: the insulating electrode (4) is made of ceramic materials and generates capacitance or displacement current when current of an induced electric field is applied.

5. An electrode patch as claimed in claim 1, wherein: and the back of the insulated electrode (4) is plated with a silver layer.

6. An electrode patch as claimed in claim 1, wherein: the thickness of the gel (6) is 0.5mm-2mm, and the gel has conductivity, viscosity and biocompatibility.

7. An electrode patch as claimed in claim 1, wherein: the flexible substrate (1) is non-woven fabric.

8. An electrode patch as claimed in claim 1, wherein: nine electrode plates are arranged in a rectangular array, nine or eight of the four electrode plates are provided with the thermistors (9), the resistance range of the thermistors (9) is 5K-20K, the B value range is 3000K-5000K, and the optimal packaging specification is 0603 or 0402.

9. An electrode patch as claimed in claim 8, wherein: the flexible circuit board (7) is provided with 10 or 11 lines, wherein two lines are an input line and an output line of the insulated electrode (4), and the other lines are control lines of the thermistor (9).

10. An electrode patch as claimed in claim 1, wherein: the insulating electrode (4) is circular, the diameter is 18-22mm, the thickness is 0.8-1.2mm, and the aperture of the middle through hole (4-1) is 2.5-3.5 mm.

Technical Field

The invention relates to an electrode patch, and belongs to the technical field of medical instruments.

Background

Brain gliomas are malignant tumors derived from neuroepithelial tissues, commonly known as "brain cancers". Brain glioma is the most common intracranial primary tumor, and foreign clinical statistics show that the incidence rate of intracranial primary tumors is 21/10 ten thousand, and glioma accounts for about 60%. Domestic literature reports that brain glioma accounts for about 35.26% -60.96% of intracranial tumors. The most common treatment method at present is surgery and radiotherapy and chemotherapy, and the brain glioma grows infiltratively, so the surgery is often difficult to completely cut. And because the tumor is a radiation-resistant tumor and is resistant to most chemotherapeutics, the overall curative effect is poor, especially high-grade glioma has the growth characteristic of high gradual change, the postoperative recurrence is fast, the prognosis is poor, and the health of human beings is seriously threatened.

Tumor treating electric fields (tumor treating fields) have a good effect on tumor treatment by interfering with the mitotic process of destroying cells. Currently, only NOVOTTF-100A medium frequency alternating electric field tumor treatment equipment developed by NoVokule (Novocure) Inc. is used in clinic globally. But the electrode array is complex to use, high in manufacturing cost and not firm to fix, and the invention provides the electrode patch aiming at the problems, which has the advantages of simple structure, simplicity and convenience in operation, firmness in fixation, cost saving, good treatment effect, high structural strength and long service life.

Disclosure of Invention

The technical problem to be solved by the invention is to provide the electrode patch which has the advantages of simple structure, simple and convenient operation, firm fixation, cost saving, good treatment effect, high structural strength and long service life.

In order to solve the problems, the technical scheme adopted by the invention is as follows:

an electrode patch comprises a flexible substrate, a flexible circuit board, a plurality of foam pads and electrode plates, wherein the foam pads and the electrode plates are fixedly arranged on the flexible substrate;

the electrode plate comprises an insulating gasket and an insulating electrode which are bonded together through a sealing adhesive, the insulating gasket is fixedly arranged on the flexible substrate, and the flexible circuit board is positioned between the insulating gasket and the insulating electrode and is welded with the insulating electrode;

a through hole is formed in the middle of the insulated electrode, a thermistor is arranged at the through hole, and the thermistor is electrically connected with the flexible circuit board;

the surfaces of the foam pad and the electrode plate are coated with gel.

The improved flexible circuit board further comprises a transmission line, wherein a shielding layer is arranged on the transmission line, an anti-dropping welding point is arranged at the connecting end of the flexible circuit board and connected with the shielding layer to prevent the circuit on the flexible circuit board from being broken, and a connecting sleeve is sleeved at the welding position of the flexible circuit board and the transmission line.

As a further improvement of the invention, four welding points are arranged on the insulated electrode and are welded with the flexible circuit board through the four welding points.

As a further improvement of the invention, the insulated electrode is made of ceramic material, and generates capacitance or displacement current when current of an induced electric field is applied.

As a further improvement of the invention, the back of the insulated electrode is plated with a silver layer.

As a further improvement of the invention, the gel has a thickness of 0.5mm-2mm, and has conductivity, viscosity and biocompatibility.

As a further improvement of the present invention, the flexible substrate is a nonwoven fabric.

As a further improvement of the invention, nine or four eight electrode plates are arranged on the electrode plates in a rectangular array, the thermistors are arranged on the nine or four electrode plates, the resistance value range of the thermistors is 5K-20K, the B value range is 3000K-5000K, and the optimal packaging specification is 0603 or 0402.

As a further improvement of the invention, the flexible circuit board is provided with 10 or 11 lines, two lines are respectively an input line and an output line of the insulated electrode, and the other lines are respectively control lines of the thermistor.

As a further improvement of the invention, the insulated electrode is circular, the diameter is 18-22mm, the thickness is 0.8-1.2mm, and the aperture of the middle through hole is 2.5-3.5 mm.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:

the electrode patch provided by the invention has the advantages of simple structure, simplicity and convenience in operation and cost saving, the electrode plate is fully contacted with a human body by arranging the gel which has high conductivity, is viscous and has long-time biocompatibility, the treatment effect is better exerted, the electrode plate is more firmly attached, and in addition, the contact area of the gel is further increased by arranging the foam pad;

the flexible circuit board is provided with an anti-dropping welding spot which is connected with the shielding layer on the transmission line and used for preventing the circuit on the flexible circuit board from being broken when being pulled, so that the overall structural strength is high, and the service life is greatly prolonged;

four welding points are arranged between the insulated electrode and the flexible circuit board, so that the contact impedance is low and the connection is reliable;

through setting up thermistor, the temperature at the insulating electrode department of real-time supervision, in time adjust the electric current when the temperature is unusual, guarantee that treatment safety efficient goes on.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic sectional view at a-a in fig. 1.

Fig. 3 is a partially enlarged schematic view of a portion a of fig. 2.

FIG. 4 is a schematic view of the structure of the back surface of the insulated electrode according to the present invention.

Wherein: the flexible printed circuit board comprises a flexible substrate 1, a side wing 1-1, a foam pad 2, a positioning hole 2-1, an insulating gasket 3, an insulating electrode 4, a through hole 4-1, a sealant 5, gel 6, a flexible circuit board 7, an anti-dropping welding point 8, a thermistor 9, a welding point 10, a connecting sleeve 11 and a transmission line 12.

Detailed Description

For purposes of clarity and a complete description of the present invention, and the like, in conjunction with the detailed description, it is to be understood that the terms "central," "vertical," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing and simplifying the present invention, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

The electrode patch shown in fig. 1-4 comprises a flexible substrate 1, a flexible circuit board 7, and a plurality of foam pads 2 and electrode sheets fixedly arranged on the flexible substrate 1, wherein a plurality of positioning holes 2-1 are formed in the foam pads 2, the electrode sheets are arranged in the positioning holes 2-1, and the electrode sheets are welded with the flexible circuit board 7. The electrode patch has the advantages of simple structure, simple and convenient operation and low production cost.

The electrode plate comprises an insulating gasket 3 and an insulating electrode 4 which are bonded together through a sealant 5, the insulating gasket 3 is fixedly arranged on the flexible substrate 1, and the flexible circuit board 7 is positioned between the insulating gasket 3 and the insulating electrode 4 and welded with the insulating electrode 4; in this embodiment, the insulated electrode 4 is made of ceramic, is circular, has a diameter of 18-22mm and a thickness of 0.8-1.2mm, and has a central through hole 4-1 with a diameter of 2.5-3.5mm, and generates capacitance or displacement current when current of an induced electric field is applied, rather than conventional charge transfer current. The insulating electrode 4 is made of ceramic materials, the insulating gasket 3 is arranged, the defects of low rigidity and strength and easiness in breaking of the ceramic materials are overcome, and in addition, the insulating gasket 3 also plays a role of an insulating layer for a welding point 10 between the flexible circuit board 7 and the insulating electrode 4.

The middle part of the insulated electrode 4 is provided with a via hole 4-1, the via hole 4-1 is provided with a thermistor 9, and the thermistor 9 is electrically connected with the flexible circuit board 7. The resistance value range of the thermistor 9 is 5K-20K, preferably 10K, the B value range is 3000K-5000K, preferably 3470K and 3950K, and the packaging specification is preferably 0603 or 0402. In this embodiment, nine or eight surrounding electrode sheets are arranged on the electrode sheet in a rectangular array, the thermistor 9 is arranged on the electrode sheet, 10 or 11 lines are arranged on the flexible circuit board 7, two lines are an input line and an output line of the insulated electrode 4, and the rest lines are control lines of the thermistor 9. The number of the thermistors 9 can be designed reasonably according to actual use, and design on each electrode sheet is not needed. Through setting up thermistor 9, can real-time supervision insulated electrode 4 department the temperature, in time adjust the electric current when the temperature is unusual, guarantee that treatment safety efficient goes on.

In addition, the electrode patch still includes transmission line 11, be equipped with the shielding layer on the transmission line 11, the link of flexible circuit board 7 is equipped with anticreep solder joint 8, anticreep solder joint 8 with the shielding layer is connected, flexible circuit board 7 still overlaps with the junction of transmission line 12 and is equipped with adapter sleeve 11, can prevent that the solder joint fish tail is human. In this embodiment, the outer diameter of the transmission line 11 is 3mm, and ten connection lines with a diameter of 0.2mm are arranged inside the transmission line and are respectively welded to 10 lines on the flexible circuit board 7. Because the anti-falling welding point 8 is connected with the shielding layer, when the flexible circuit board 7 is pulled to the transmission line 11, the anti-falling welding point 8 is stressed first to prevent the line on the flexible circuit board 7 or the connecting line on the transmission line 11 from being pulled to be broken.

The gel 6 is coated on the surfaces of the foam pad 2 and the electrode plate, the gel is high in conductivity, viscous and long-time biocompatibility, the gel is thick enough to prevent the electrode plate from drying out during treatment, the thickness is preferably 0.5-2mm, the electrode plate is fully contacted with a human body, the treatment effect is better exerted, the electrode plate can be attached more firmly, and in addition, the contact area of the gel is further increased through the arrangement of the foam pad. The gel 6 may be coated at the point of use.

Four welding points 10 are arranged on the insulated electrode 4, and the four welding points 10 are welded with the flexible circuit board 7, so that the contact impedance is low, and the connection is reliable.

The back of the insulated electrode 4 is plated with a silver layer, the silver layer is produced through a screen printing process, and then polarization treatment is carried out, so that the orientation of the electrode is consistent, and the optimization of a magnetic field is realized.

The flexible substrate 1 is made of non-woven fabrics, has biocompatibility and holes, facilitates pores to breathe, reduces sweat, and can prevent the insulated electrode 4 from falling off from a human body. The flexible substrate 1 is provided with a plurality of side wings 1-1 to increase the contact area with the human body, and glutinous rice glue or other harmless glue solution can be arranged on the flexible substrate 1 and/or the side wings 1-1 to firmly fix the flexible substrate on the human body.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.