CN215084237U - Medical electrode and electrode patch for electric field treatment of tumor - Google Patents
Medical electrode and electrode patch for electric field treatment of tumor Download PDFInfo
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- CN215084237U CN215084237U CN202120374780.1U CN202120374780U CN215084237U CN 215084237 U CN215084237 U CN 215084237U CN 202120374780 U CN202120374780 U CN 202120374780U CN 215084237 U CN215084237 U CN 215084237U
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Abstract
The utility model relates to a medical electrode and electrode paster for electric field treatment tumour, medical electrode include ceramic electrode piece and flexible circuit board, are provided with the electrode pad on the flexible circuit board, and the electrode pad is for not confined annular conductor, and the electrode pad passes through a plurality of solder joints welding with ceramic electrode piece. The electrode patch comprises a patch substrate and a plurality of medical electrodes, wherein the medical electrodes are distributed on the patch substrate, and electrode pads on the medical electrodes are communicated with each other.
Description
Technical Field
The utility model relates to a medical electrode and electrode paster for electric field treatment tumour.
Background
The response of living cells to an applied alternating electric field is frequency dependent based on the biological effects of the electric field on the cells and living tissue. At low frequencies (below 1 khz), alternating electric fields can stimulate nerves and muscles by depolarizing cell membranes. In addition, low frequency or pulsed electric fields can also accelerate fracture healing. At high frequencies (frequencies above 10 mhz), the alternating electric field can cause tissue heating, which can be used for tumor ablation.
Due to the continuing limitations of currently available cancer therapies, including chemotherapy or radiation therapy, new forms of therapy, including electrical stimulation, have recently attracted extensive research exploration or clinical application interest. Medium frequency electric fields have long been considered to have no major effect on biological processes because their alternation is too fast to cause effective neuromuscular stimulation and low intensities can cause only limited heating effects. However, in recent years, it has been found through research and clinical application that when the frequency of the electric field is in the range of 100-. Such studies have subsequently led to the development of new electric field therapies in the field of tumor therapy. Specific techniques have been used in some countries for medical research and clinical treatment of brain tumors and other cancers.
It has been shown in particular that the application of alternating electric fields of low intensity and medium frequency can inhibit the mitotic growth of active tumor cells by disrupting mitosis. In addition, finite element modeling calculations have also demonstrated that the application of an electric field can affect the division and growth of tumor cells.
The electric field applying device for treating tumor mainly includes power supply unit and matched electrodes. The electrode in the prior art is not perfect in detail structure design, so that the structural stability and the treatment effect of the electrode are not ideal.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an electrode paster that is used for medical electrode of electric field treatment tumour and is based on it is provided.
In order to solve the above problems, the utility model adopts the following technical proposal:
the medical electrode for treating tumors by an electric field is characterized by comprising a ceramic electrode plate and a flexible circuit board, wherein an electrode pad is arranged on the flexible circuit board and is an unclosed annular conductor, and the electrode pad is welded with the ceramic electrode plate through a plurality of welding spots.
As a further improvement of the medical electrode, one surface of the ceramic electrode plate is provided with a metal coating, so that each ceramic electrode plate can achieve the action of equal potential of an electric field, and the electrode pad is welded with the metal coating through a plurality of welding points.
As a further improvement of the medical electrode, a plurality of pad widening parts are uniformly distributed on the electrode pad, and the welding spots are positioned on the pad widening parts.
As a further improvement of the medical electrode, the electrode pad is in the shape of an unclosed circle, an unclosed ellipse or an unclosed polygon, or in the shape of a circle or an unclosed polygon with a hole.
As a further improvement of the medical electrode, the middle of the ceramic electrode plate is provided with a through hole for welding the thermistor, the middle of the flexible circuit board is provided with two thermistor pads, the thermistor pads are welded with the thermistor, and the thermistor is arranged in the through hole in the middle of the ceramic electrode plate.
As a further improvement of the medical electrode, the diameter of the metal coating is smaller than that of the ceramic electrode plate, and an annular insulating area is reserved between the metal coating and the edge of the ceramic electrode plate to achieve the insulating effect.
As a further improvement of the medical electrode, the metal coating and the edge of the through hole are provided with an annular insulating area.
The electrode patch for treating tumors by using the electric field is characterized by comprising a patch substrate and a plurality of medical electrodes, wherein the medical electrodes are distributed on the patch substrate, and electrode pads on the medical electrodes are mutually communicated.
As a further improvement of the electrode patch, at least one silica gel positioning sheet is arranged on the patch substrate, and a positioning groove matched with the ceramic electrode sheet is arranged on the silica gel positioning sheet.
The utility model provides an electrode paster for electric field therapy tumour, its key technology lies in, it includes paster base member and a plurality of as above medical electrode, medical electrode distributes and sets up on the paster base member, it is a plurality of communicate each other between the electrode pad on the medical electrode, be provided with at least one silica gel spacer on the paster base member, be provided with on the silica gel spacer with the constant head tank of ceramic electrode piece looks adaptation, be provided with the sealed hole in the constant head tank, through sealed jogged joint coats and has sealed glue, sealed glue makes the insulating seal of thermistor and the insulating seal of ceramic electrode metal coating, and make the ceramic electrode piece with the silica gel spacer bonds.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the medical electrode provided by the utility model adopts the unclosed annular conductor as the welding pad, and the unclosed annular conductor is electrified to form an unclosed annular circuit, so that the action of the equipotential of the tumor treatment electric field can be achieved on each medical ceramic electrode, and the reliability and the stability of the electrical connection of the electrode action are ensured; the unclosed annular conductor is beneficial to the welding connection between the bonding pad and the ceramic electrode plate, so that the structural stability of the bonding pad is enhanced.
The utility model provides an electrode patch, wherein a plurality of communicate each other between the last electrode pad of medical electrode, this structure has ensured that all medical electrode are in the state of equipotential, has ensured the stability and the treatment of equipment.
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 embodiments or the technical solutions in 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the back structure of a medical electrode.
Fig. 2 is a schematic view of a ceramic electrode sheet.
Fig. 3 is a schematic structural diagram of the flexible circuit board.
Fig. 4 and 5 are schematic structural diagrams of two embodiments of the bonding pad.
Fig. 6 is a schematic diagram of the structure of the electrode patch.
Fig. 7 is a schematic view of the patch substrate distributed with silica gel positioning pieces.
Fig. 8 is a schematic structural diagram of the flexible circuit board.
Wherein: 1 ceramic electrode plate, 2 flexible circuit board, 3 electrode bonding pad, 4 bonding pad widened parts, 5 thermistor bonding pad, 6 wires, 7 metal coating, 8 through holes, 9 insulation regions, 10 bonding pad matrixes, 11 gel bonding pads, 12 silica gel positioning sheets, 13 flexible circuit board, 14 sleeve pipes, 15 wires, 16 positioning grooves, 17 sealing holes, 18 accommodating grooves, 19 thermistors and 20 insulation regions.
Detailed Description
To make the objects, aspects and advantages of the present invention clearer and more fully described below with reference to the following detailed description, it is to be understood that the terms "center", "vertical", "horizontal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations and positional relationships based on the drawings, and are used merely for convenience of describing and simplifying the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Example 1
The medical electrode for electric field tumor treatment as shown in fig. 1 to 3 comprises a ceramic electrode plate 1 and a flexible circuit board 2, wherein an electrode pad 3 is arranged on the flexible circuit board 2, the electrode pad is an unclosed annular conductor, and the electrode pad 3 is welded with the ceramic electrode plate 1 through a plurality of welding points (not shown).
The ceramic electrode plate 1 is made of ceramic plates with high dielectric constant and low loss, and the relative dielectric constant of the ceramic electrode plate is larger than 10000. The ceramic electrode plate 1 may be circular, oval or polygonal, and the polygon may be regular polygon such as regular triangle, square and the like. The flexible circuit board 2 is circular and matched with the flexible circuit board, and the diameter of the flexible circuit board 2 is smaller than that of the ceramic electrode plate 1.
One surface of the ceramic electrode plate 1 is provided with a metal coating 7, the electrode pad 3 is welded with the metal coating 7 through a plurality of welding points, and the metal coating 7 is arranged, so that the electrode pad 3 is conveniently welded with the ceramic electrode plate 1 on one hand, and on the other hand, the whole ceramic electrode plate 1 can be ensured to be in a state of an electric field with equal potential; in addition, the metal coating is polarized, so that the orientation of the electrodes is consistent, and the optimization of an electric field is realized. The metal coating 7 is a screen-printed silver layer.
The diameter of the metal coating 7 is smaller than that of the ceramic electrode plate 1, and an annular insulating area 9 is reserved between the metal coating 7 and the edge of the ceramic electrode plate 1.
When the medical electrode is used, gel needs to be arranged on the other surface (the surface without the metal coating 7) of the ceramic electrode plate 1, the gel is in contact with the skin of a human body, the gel is colloid, large deformation can occur after long-time use, the gel can be extruded and seeped into the periphery of the ceramic electrode plate 1, and if the annular insulating area 9 is not reserved, the gel is easily in contact with the metal coating 7 to form an electrical short circuit, so that the medical electrode loses due effect.
As shown in fig. 1 and 3, a plurality of pad widenings 4 are uniformly distributed on the electrode pad 3, the welding points are located at the pad widenings 4, and the widened pad widenings 4 can ensure stable and tight combination of the electrode pad 3 and the ceramic electrode sheet 1, and the welding operation is convenient.
As shown in fig. 4, the shape of the electrode pad is a non-closed circle, an ellipse or a polygon, a circle with a via, or a polygon. In this embodiment, the electrode pad 3 has an unsealed octagonal structure in which four pad widening portions 4 are widened on four sides, and the four pad widening portions 4 are disposed at intervals.
Example 2
As shown in fig. 4, the present embodiment is different from embodiment 1 in that the electrode pad 3 has a non-closed circular ring structure, and a widened pad portion is not specially provided thereon for soldering, and a plurality of soldering points can be provided according to actual needs, and the soldering points are uniformly distributed.
Example 3
As shown in fig. 5, the present embodiment is different from embodiment 1 in that the electrode pad 3 has a non-closed regular octagonal structure, and a widened pad widening portion is not specially provided thereon for soldering, and a plurality of soldering points can be provided according to actual needs, and the soldering points are uniformly distributed.
Example 4
On the basis of embodiment 1, as a further optimization of the medical electrode, a through hole 8 (shown in fig. 2) is formed in the middle part 1 of the ceramic electrode plate, two thermistor pads 5 are arranged in the middle part of the flexible circuit board 2, the thermistor pads 5 are welded with a thermistor 19, and the thermistor 19 is placed in the through hole 8 in the middle part of the ceramic electrode plate 1. The thermistor 19 is used to monitor the electrode temperature in real time during the treatment process.
Example 5
As shown in fig. 6 to 8, an electrode patch for electric field therapy of tumor includes a patch substrate 10 and a plurality of medical electrodes according to any one of embodiments 1 to 4, the medical electrodes are distributed on the patch substrate 10, and electrode pads 3 on the plurality of medical electrodes are connected through leads 6.
The ceramic electrode plate is characterized in that at least one silica gel positioning sheet 12 is arranged on the patch base body 10, a positioning groove 16 matched with the ceramic electrode plate 1 is formed in the silica gel positioning sheet 12, and a containing groove 18 used for containing the flexible circuit board 13 is formed in the silica gel positioning sheet 12.
In this embodiment, the number of the silica gel positioning pieces 12 is three, and each silica gel positioning piece 12 is provided with three positioning grooves 16, which are totally 9 medical electrodes. Each medical electrode corresponds to a circular flexible circuit board 2, the flexible circuit board 13 of the whole electrode patch is of a structure shaped like a Chinese character 'wang', and 6 end parts and 3 node parts of the flexible circuit board 13 are all the circular flexible circuit boards 2.
The flexible circuit board 13 is connected with a lead 15, the lead 15 is connected with a host of an electric field applying device, and a sleeve 14 playing a role in strengthening protection is arranged at the joint of the circuit board 13 and the lead 15.
The ceramic electrode plates 1 are provided with gel patches 11, the shapes of the gel patches 11 are matched with the silica gel positioning sheets 12, and one gel patch 11 covers 3 ceramic electrode plates 1.
The patch substrate 10 is a medical non-woven fabric.
Example 6
In this embodiment, on the basis of the above embodiment 5, in combination with the structure of the medical electrode in embodiment 4, an electrode patch is provided, where a positioning groove 16 adapted to the ceramic electrode plate 1 is provided on the silicone positioning plate 12, a sealing hole 17 is provided in the positioning groove 16, and a sealant (not shown) is coated through the sealing hole 17, so that the thermistor 19 is insulated and sealed by the sealant, and the ceramic electrode plate 1 is bonded to the silicone positioning plate 10. The structure facilitates the assembly and fixation of the whole electrode patch, ensures the stability and reliability of the medical electrode and avoids the short circuit of the thermistor.
In a similar way, the silica gel positioning sheet 12 is covered with the gel patch 11, the gel on the gel patch easily enters into the gap between the silica gel positioning sheet 12 and the ceramic electrode plate 1 gradually when in use, so that the insulation area 9 is arranged to avoid long-time use, the electrical short circuit phenomenon caused by the gel can be avoided, the adoption of measures can be avoided to ensure that the silica gel positioning sheet 12 and the ceramic electrode plate 1 are directly insulated and sealed, and the cost of the electrode patch is reduced.
The shape of the sealing hole 17 can be round or rectangular, and the purpose is to facilitate the coating of sealant to insulate and seal the thermistor 19, and to bond the ceramic electrode plate 1 and the silica gel positioning plate 10. The sealant is heat-conducting insulating glue.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (10)
1. The medical electrode for treating tumors by an electric field is characterized by comprising a ceramic electrode plate and a flexible circuit board, wherein an electrode pad is arranged on the flexible circuit board and is an unclosed annular conductor, and the electrode pad is welded with the ceramic electrode plate through a plurality of welding spots.
2. The medical electrode for electric field treatment of tumors as claimed in claim 1, wherein a metal coating is disposed on one side of said ceramic electrode sheet, and said electrode pad is welded to said metal coating by a plurality of welding points.
3. The medical electrode for electric field treatment of tumor according to claim 1, wherein a plurality of pad widenings are uniformly distributed on the electrode pad, and the welding spots are located on the pad widenings.
4. The medical electrode for electric field treatment of tumors as claimed in claim 1, wherein the shape of said electrode pad is a non-closed circle, ellipse or polygon.
5. The medical electrode for electric field tumor therapy according to claim 2, wherein the ceramic electrode plate is provided with a through hole in the middle, the flexible circuit board is provided with two thermistor pads in the middle, the thermistor pads are welded with thermistors, and the thermistors are arranged in the through hole in the middle of the ceramic electrode plate.
6. The medical electrode for electric field tumor therapy as claimed in claim 2, wherein the diameter of the metal coating is smaller than that of the ceramic electrode plate, and an annular insulating region is left between the metal coating and the edge of the ceramic electrode plate for insulation.
7. The medical electrode for electric field treatment of tumor according to claim 5, wherein the metal coating and the edge of the through hole are left with an annular insulating region.
8. An electrode patch for treating tumors by an electric field, which is characterized by comprising a patch substrate and a plurality of medical electrodes according to any one of claims 1 to 7, wherein the medical electrodes are distributed on the patch substrate, and electrode pads on the plurality of medical electrodes are communicated with each other.
9. The electrode patch as claimed in claim 8, wherein the patch substrate is provided with at least one silicone positioning plate, and the silicone positioning plate is provided with a positioning groove matched with the ceramic electrode plate.
10. An electrode patch for electric field tumor therapy, which comprises a patch substrate and a plurality of medical electrodes as claimed in claim 5, wherein the medical electrodes are distributed on the patch substrate, a plurality of electrode pads on the medical electrodes are communicated with each other, at least one silica gel positioning sheet is arranged on the patch substrate, a positioning groove matched with the ceramic electrode sheet is arranged on the silica gel positioning sheet, a sealing hole is arranged in the positioning groove, a sealant is coated on the sealing hole, the sealant enables the thermistor to be sealed in an insulating way and the ceramic electrode to be sealed in an insulating way through a metal coating, and the ceramic electrode sheet is bonded with the silica gel positioning sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120374780.1U CN215084237U (en) | 2021-02-18 | 2021-02-18 | Medical electrode and electrode patch for electric field treatment of tumor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120374780.1U CN215084237U (en) | 2021-02-18 | 2021-02-18 | Medical electrode and electrode patch for electric field treatment of tumor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215084237U true CN215084237U (en) | 2021-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120374780.1U Active CN215084237U (en) | 2021-02-18 | 2021-02-18 | Medical electrode and electrode patch for electric field treatment of tumor |
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| Country | Link |
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| CN (1) | CN215084237U (en) |
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2021
- 2021-02-18 CN CN202120374780.1U patent/CN215084237U/en active Active
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