CN113749762A - High heat radiation performance electrode - Google Patents
High heat radiation performance electrode Download PDFInfo
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- CN113749762A CN113749762A CN202110997338.9A CN202110997338A CN113749762A CN 113749762 A CN113749762 A CN 113749762A CN 202110997338 A CN202110997338 A CN 202110997338A CN 113749762 A CN113749762 A CN 113749762A
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/00059—Material properties
- A61B2018/00089—Thermal conductivity
- A61B2018/00095—Thermal conductivity high, i.e. heat conducting
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Abstract
The invention provides a high heat dissipation performance electrode for electric field treatment, which comprises a backing, a flexible circuit board arranged on the backing, and a dielectric element and a heat dissipation reinforcing piece which are respectively arranged on two opposite sides of the flexible circuit board, wherein the heat dissipation reinforcing piece is clamped between the flexible circuit board and the backing, and is made of a material with a heat conductivity coefficient larger than 200W/mK. The heat dissipation reinforcing part of the high heat dissipation performance electrode has higher heat conductivity, can quickly conduct heat gathered on the body surface of a target area of a patient, ensures the treatment effect of a tumor electric field, and does not need to change the intensity of alternating electric field.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a high heat dissipation performance electrode for electric field treatment.
Background
Electric field therapy is a tumor therapy method which achieves the purpose of tumor therapy by interfering the mitotic process of tumor cells through low-intensity, medium-frequency and alternating electric fields. Research shows that the electric field treatment has obvious effect in treating diseases such as glioblastoma, non-small cell lung cancer, melanoma and the like, and the treatment method can prolong the life cycle of patients and improve the life quality of the patients and has small side effect.
Electric field therapy is the application of an electric field to a tissue region in which a lesion is located by means of an external electrode. The strength of the applied electric field has special requirements on the structural configuration of the electrode, which also varies according to different indications. The existing electrode mainly comprises hydrogel adhered to the body surface of a patient, a ceramic transduction piece (dielectric element) arranged on the hydrogel, a Flexible Printed Circuit (FPC) welded with the ceramic transduction piece, an epoxy glass cloth laminated board arranged on the FPC and a flexible supporting piece positioned on the epoxy glass cloth laminated board. The side of the flexible support facing the patient's body surface is coated with a biocompatible adhesive. The electrodes are adhered to the corresponding body surface of the tumor site of the patient by a biocompatible adhesive coated on the flexible support.
At present, the mitosis of tumor cells is disturbed by applying alternating voltage to the electrodes applied to the corresponding body surfaces of the tumor parts of the patients to generate alternating electric fields at the tumor parts of the patients, and in order to obtain better treatment effect, the alternating current needs to be continuously applied to the electrodes applied to the corresponding body surfaces of the tumor parts of the patients for a long time to generate the alternating electric fields acting on the tumor cells. When alternating voltage is continuously applied to the electrodes attached to the corresponding body surfaces of the tumor parts of the patients for tumor electric field treatment for a long time, heat is accumulated on the body surfaces of the patients, but the heat on the body surfaces of the patients is transferred to the ceramic transduction piece through hydrogel and then transferred to the epoxy glass cloth laminated board through the FPC, and finally transferred to the outside of the electrodes through the flexible supporting layer through the epoxy glass cloth laminated board. Because of epoxy glass cloth laminated board is insulating, its radiating efficiency is low, can't be exerting alternating voltage to the electrode for a long time outside heat transfer to the flexible supporting layer of gathering at the patient body surface fast, can have the patient body surface because of the heat gathering and the temperature rise causes the body surface position that scalds the patient and paste the electrode.
Therefore, in order to solve the above problems, it is necessary to provide an electrode having high heat dissipation performance.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a high heat dissipation performance electrode, which is used for applying an alternating electric field to a target area of a patient during tumor electric field treatment and comprises a backing, a flexible circuit board arranged on the backing, a dielectric element arranged on the flexible circuit board, and a heat dissipation reinforcing piece arranged on the flexible circuit board, wherein the heat dissipation reinforcing piece and the dielectric element are respectively arranged on two opposite sides of the flexible circuit board, the heat dissipation reinforcing piece is clamped between the flexible circuit board and the backing, and the heat dissipation reinforcing piece is made of a material with a heat conductivity coefficient larger than 200W/mK.
Optionally, at least one heat dissipation through hole is formed in the heat dissipation reinforcing member.
Optionally, the heat dissipation reinforcing member is a metal plate, a metal alloy plate, or a graphene composite plate.
Optionally, the heat dissipation reinforcement is a metal plate or a metal alloy plate with a thickness of 0.1-0.7 mm.
Optionally, the heat dissipation reinforcement is an aluminum plate or an aluminum alloy plate with a thickness of 0.3-0.6 mm.
Optionally, the heat dissipation reinforcement is an aluminum plate with a thickness of 0.6 mm.
Optionally, the number of the heat dissipation through holes is 30, and the heat dissipation through holes are uniformly distributed on the aluminum plate, and the diameter of each heat dissipation through hole is 0.5 mm.
Optionally, the heat dissipation reinforcing part is an aluminum alloy plate with a thickness of 0.3mm, and the thermal conductivity of the aluminum alloy plate is 201W/mK.
Optionally, the number of the heat dissipation through holes is 50, the heat dissipation through holes are uniformly distributed on the aluminum alloy plate, and the diameter of each heat dissipation through hole is 0.4 mm.
Optionally, the heat dissipation reinforcing member is a graphene composite plate with a thickness of 0.1mm, and the heat conductivity coefficient of the heat dissipation reinforcing member is greater than 300W/mK.
Optionally, the electronic device further comprises a support member sleeved around the dielectric element, and an adhesive member covering the support member and the dielectric element.
Optionally, the support has an opening disposed therethrough for the dielectric element to pass through.
Optionally, the adhesive device further comprises a temperature sensor arranged on the flexible circuit board and located between the flexible circuit board and the adhesive member.
Optionally, the dielectric element has a through hole, and the temperature sensor is accommodated in the through hole of the dielectric element and contacts with the adhesive member for detecting the temperature of the adhesive member.
Optionally, the temperature sensor and the heat dissipation reinforcement are respectively located on two opposite sides of the flexible circuit board.
The heat dissipation reinforcing member of the electrode clamp with high heat dissipation performance, which is arranged between the flexible circuit board and the back lining, is made of a material with a heat conductivity coefficient larger than 200W/mK, has high heat conductivity, and can quickly conduct out heat gathered by the skin of the body surface of a patient when a high-level alternating electric field is applied for a long time to enable the body surface temperature of the tumor part of the patient to rise to a certain threshold value, so that the tumor electric field treatment has a good treatment effect, and the alternating voltage applied to the electrode does not need to be quickly reduced to reduce the electric field intensity so as to reduce the body surface temperature of the tumor part of the patient and reduce the treatment effect of the tumor electric field.
Aiming at the problems in the prior art, the invention also provides a high heat dissipation performance electrode which is used for being pasted on the body surface corresponding to the target area of a patient so as to apply an alternating electric field to the target area of the patient, and the high heat dissipation performance electrode comprises a flexible backing and an electric function assembly supported by the flexible backing, wherein the electric function assembly comprises a dielectric element close to the body surface corresponding to the target area of the patient, the electric function assembly is also provided with a heat dissipation reinforcing piece corresponding to the dielectric element, the heat dissipation reinforcing piece is clamped between the dielectric element and the flexible backing, and the heat dissipation reinforcing piece is made of a material with a heat conduction coefficient larger than 200W/mK.
Optionally, the heat dissipation reinforcing member is disposed on a side of the dielectric element away from the body surface of the target region of the patient, and at least one heat dissipation through hole is disposed through the heat dissipation reinforcing member.
Optionally, the heat dissipation reinforcement is a metal plate or a metal alloy plate with a thickness of 0.1-0.7 mm.
Optionally, the heat dissipation reinforcement is an aluminum plate or an aluminum alloy plate with a thickness of 0.3-0.6 mm.
Optionally, the heat dissipation reinforcement is 0.6 mm's aluminum plate, the quantity of heat dissipation through-hole is 30 and evenly distributed in on the aluminum plate, the diameter of heat dissipation through-hole is 0.5 mm.
Optionally, the heat dissipation reinforcement is 0.3mm thick aluminum alloy plate, aluminum alloy plate's coefficient of heat conductivity is 201W/mK, the quantity of heat dissipation through-hole is 50 and evenly distributed in on the aluminum alloy plate, the diameter of heat dissipation through-hole is 0.4 mm.
Optionally, the heat dissipation reinforcing member is a graphene composite plate with a thickness of 0.1mm, and the heat conductivity coefficient of the heat dissipation reinforcing member is greater than 300W/mK.
Optionally, the device further comprises a support member adhered to the flexible backing and disposed around the dielectric element, and an adhesive member covering the support member and the dielectric element.
Optionally, the electrical function assembly further comprises a temperature sensor in contact with the adhesive element for detecting a temperature of the adhesive element.
Optionally, the heat dissipation reinforcement is electrically insulated from the dielectric element.
The heat dissipation reinforcing member with the high heat dissipation performance electrode clamped between the flexible circuit board and the back lining is made of a material with a heat conductivity coefficient larger than 200W/mK, has high heat conductivity, and can quickly conduct heat gathered by the skin of the body surface of a patient when a high-level alternating electric field is applied for a long time to enable the body surface temperature of the tumor part of the patient to rise to a certain threshold value, so that the tumor electric field treatment has a good treatment effect, and the electric field intensity is reduced without quickly reducing the alternating voltage applied to the electrode, so that the body surface temperature of the tumor part of the patient is reduced, and the tumor electric field treatment effect is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic perspective exploded view of a high heat dissipation performance electrode according to the present invention;
fig. 2 is an exploded perspective view of the temperature sensor, the dielectric element, the flexible circuit board and the heat dissipation reinforcing member of the high heat dissipation performance electrode shown in fig. 1;
fig. 3 is a perspective view of the heat dissipation reinforcing member of the high heat dissipation performance electrode shown in fig. 2;
fig. 4 is a schematic exploded perspective view, similar to fig. 1, of the high heat dissipation performance electrode of the present invention, in which the temperature sensor, the dielectric element, the flexible circuit board, and the heat dissipation reinforcement member are combined together.
Description of reference numerals:
1 spacer, 2 adhesive part, 3 support part, 30 opening, 4 temperature sensor, 5 dielectric element, 50 perforation, 6 flexible circuit board, 60 main body part, 61 connecting part, 7 heat dissipation reinforcing part, 70 heat dissipation through hole, 8 backing, 9 electric function component, 100 high heat dissipation performance electrode.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Referring to fig. 1 to 4, the electrode 100 with high heat dissipation performance of the present invention, which can be attached to the surface of a patient corresponding to a tumor region to apply an alternating electric field to the tumor region to disturb or inhibit the mitosis of tumor cells, thereby treating tumor, includes a flexible backing 8, an electrical functional assembly 9 adhered to the backing 8, a support 3 adhered to the backing 8, an adhesive member 2 disposed on the support 3, and a spacer 1 disposed above the adhesive member 2 and capable of being adhered to the backing 8. The electrode 100 with high heat dissipation performance is attached to the corresponding body surface of a tumor part of a patient through the backing 8, and an alternating electric field is applied to the tumor part of the patient through the electric functional assembly 9 to interfere or prevent mitosis of tumor cells of the patient, so that the purpose of treating tumors is achieved.
The backing 8 is in the form of a sheet-like arrangement, which is mainly made of a flexible, gas-permeable insulating material. The backing 8 is provided with a plurality of air holes (not shown) which are arranged in a penetrating way, so that when the backing 8 is pasted on the surface of a patient, the surface of the patient can freely breathe by the hair follicles and sweat glands of the skin covered by the backing 8, and the skin inflammation caused by the damage of the superficial layer of the skin of the patient due to the blockage of the hair follicles and sweat glands of the surface of the patient covered by the backing 8 is avoided. The backing 8 is a mesh fabric. In particular, the backing 8 is a mesh nonwoven. The side of the backing 8 facing the patient's body surface is also coated with a compatible adhesive for adhering the backing 8 to the patient's body surface in the desired area.
The electrical functional component 9 is adhered to the backing 8 by a biocompatible adhesive on the backing 8 for applying an alternating electric field to the tumor site of the patient. The electrical functional assembly 9 comprises a flexible circuit board 6, a temperature sensor 4 arranged on the flexible circuit board 6, and a dielectric element 5 and a heat dissipation reinforcing member 7 respectively arranged on two opposite sides of the flexible circuit board 6. The temperature sensor 4 and the heat dissipation reinforcing piece 7 are respectively positioned at two opposite sides of the flexible circuit board 6. The temperature sensor 4 is located on the same side of the flexible circuit board 6 as the dielectric element 5. The dielectric element 5 is arranged on one side of the flexible circuit board 6 close to the body surface of the patient, and the heat dissipation reinforcing piece 7 is arranged on one side of the flexible circuit board 6 far away from the body surface of the patient. The electric functional assembly 9 is adhered to the backing 8 through the heat dissipation reinforcing member 7 and the corresponding part of the flexible circuit board 6 and the biocompatible adhesive coated on the backing 8 respectively, so as to be closely attached to the backing 8.
The flexible circuit board 6 has a plurality of main body portions 60 arranged in a circular shape and a connecting portion 61 connected to the main body portions 60. The supporting member 3 is provided at a corresponding position of the main body portion 60 of the flexible circuit board 6. The connecting portion 61 is provided in the form of a tape or strip, which can be attached to the backing 8 by means of a biocompatible adhesive provided on the backing 8. The side of the main body 60 facing the surface of the patient has a conductive part (not shown) exposed on the surface, which can be soldered to the corresponding part of the dielectric element 5 to electrically connect the flexible circuit board 6 and the dielectric element 5. The high heat dissipation performance electrode 100 applies an alternating electric field to a tumor region of a patient through a conductive portion (not shown) of the main body portion 60 of the flexible circuit board 6 exposed to a surface of the patient and the dielectric member 5. The number of the dielectric elements 5 is plural, the number of the main body parts 60 of the flexible circuit board 6 is plural, and the number of the dielectric elements 5 is the same as the number of the main body parts 60 of the flexible circuit board 6.
The temperature sensor 4 is provided on the main body portion 60 of the flexible circuit board 6 by soldering. The temperature sensor 4 is arranged on one side of the main body part 60 of the flexible circuit board 6 close to the body surface of the patient. The temperature sensor 4 is located in the middle of the main body portion 60 of the flexible circuit board 6 and is used for detecting the temperature of the corresponding adhesive member 2, and further detecting the temperature of the body surface of the patient corresponding to the adhesive member 2. The temperature sensor 4 is located between the flexible circuit board 6 and the adhesive member 2. The temperature sensor 4 is a thermistor. Temperature sensor 4 is used for detecting the temperature of pasting piece 2 that directly pastes with patient's body surface and apply, and then the alternating electric field that reasonable control was applyed to avoid patient's body surface to lead to patient's body surface to cause patient's body surface skin low temperature scald because of human hydrone the heat that the looks mutual friction produced under the alternating electric field effect at patient's body surface gathering because of applying the alternating electric field through high heat dispersion electrode 100 for a long time. The number of temperature sensors 4 is at most the same as the number of dielectric elements 5. That is, in other embodiments, the number of temperature sensors 4 is less than the number of dielectric elements 5. The temperature sensor 4 is soldered to the main body portion 60 of some of the flexible circuit boards 6, and the temperature sensor 4 is not soldered to the main body portion 60 of some of the flexible circuit boards 6. The temperature sensor 4 is optionally soldered to the main body portion 60 of the flexible circuit board 6.
The dielectric element 5 is formed in a substantially circular sheet-like configuration and is provided on the side of the main body portion 60 of the flexible circuit board 6 facing the body surface of the patient by soldering. The dielectric element 5 is made of a material having a high dielectric constant, which has a property of blocking direct current but allowing alternating current to pass. The dielectric element 5 in this embodiment is a ceramic sheet with a relatively high dielectric constant, which is at least greater than 1000. The dielectric element 5 has a through-going hole 50 for receiving the temperature sensor 4. The through hole 50 is provided in the middle of the dielectric element 5. The diameter of the perforation 50 is slightly larger than the width of the temperature sensor 4. The size of the dielectric element 5 is slightly smaller than the size of the main body portion 60 of the flexible circuit board 6. After the dielectric element 5 is soldered to the main body portion 60 of the flexible circuit board 6, a gap between the dielectric element 5 and the main body portion 60 of the flexible circuit board 6 is filled with a sealant, so as to seal a soldering portion (not shown) between the dielectric element 5 and the main body portion 60 of the flexible circuit board 6.
The heat dissipation reinforcing member 7 is substantially in the shape of a circular sheet, one side of the heat dissipation reinforcing member close to the patient body surface is attached to the main body portion 60 of the flexible circuit board 6 by an adhesive (not shown), and one side of the heat dissipation reinforcing member far from the patient body surface is attached to the backing 8 by a biocompatible adhesive provided on the backing 8. The heat dissipation reinforcing member 7 is disposed on a side of the main body portion 60 of the flexible circuit board 6 away from the body surface of the patient, and is used for supporting the main body portion 60 of the flexible circuit board 6, so as to respectively weld the temperature sensor 4 and the dielectric element 5 on the main body portion 60 of the flexible circuit board 6. The heat dissipation reinforcement 7 is arranged on the backing 8 after the electrical functional assembly 9 is assembled, and then is sandwiched between the backing 8 and the main body portion 60 of the flexible circuit board 6. The diameter of the heat dissipation reinforcement 7 is substantially the same as the diameter of the main body portion 60 of the flexible circuit board 6. The number of the heat dissipation reinforcing members 7 is the same as that of the main body portion 60 of the flexible circuit board 6. The number of the heat dissipation reinforcing members 7 is the same as that of the dielectric elements 5. The heat dissipation reinforcing member 7 is insulated from a conductive portion (not shown) on the main body portion 60 of the flexible circuit board 6. The heat dissipation reinforcing member 7 is electrically insulated from the flexible circuit board 6.
The heat dissipation reinforcing member 7 is made of a material with a heat conductivity coefficient larger than 200W/mK, and can quickly expose the main body part 60 of the flexible circuit board 6 for applying the alternating electric field to the heat generated by the conductive part (not shown) close to one side of the body surface of the patient and the dielectric element 5 and dissipate the heat accumulated on the body surface of the patient due to the fact that the alternating electric field is applied to the body surface of the tumor part of the patient through the high heat dissipation performance electrode 100 for a long time, so that the heat dissipation performance of the high heat dissipation performance electrode 100 in the tumor electric field treatment process is enhanced, the treatment time can be prolonged under the condition that the size of the alternating electric field applied to the high heat dissipation performance electrode 100 is kept unchanged, and the tumor alternating electric field treatment has a good treatment effect. The heat dissipation reinforcing part 7 can be a metal plate, a metal alloy plate or a graphene composite plate. One or more heat dissipation through holes 70 are further formed in the heat dissipation reinforcing member 7, so that heat can be further dissipated rapidly through the backing 8. The heat dissipation through holes 70 are uniformly distributed on the heat dissipation reinforcing member 7. The heat dissipating through-holes 70 are arranged in a circular shape. Preferably, the heat dissipation reinforcement 7 is a metal plate or a metal alloy plate with a thickness of 0.1-0.7 mm. Specifically, the heat dissipation reinforcing member 7 is an aluminum plate or an aluminum alloy plate having a thickness of 0.3 to 0.6 mm. Specifically, the heat dissipation reinforcement 7 is an aluminum plate having a thickness of 0.6 mm. The number of the heat dissipation through holes 70 uniformly distributed on the aluminum plate is 30, and the diameter of the heat dissipation through holes 70 is 0.5 mm. Alternatively, the heat dissipation reinforcement 7 is a 6063 aluminum alloy plate having a thickness of 0.3 mm. The thermal conductivity coefficient of the 6063 type aluminum alloy is 201W/mK. The number of the heat dissipation through holes 70 uniformly distributed on the 6063 type aluminum alloy plate is 50, and the diameter of each heat dissipation through hole 70 is 0.4 mm. Or, the heat dissipation reinforcing member 7 is made of a graphene composite material, and the thickness is 0.1 mm. The heat dissipation reinforcing piece 7 has a heat conductivity coefficient larger than 300W/mK.
The support 3 is placed around the dielectric element 5 on the body portion 60 of the flexible circuit board 6 and is adhered to the backing 8 by a biocompatible adhesive on the backing 8. The support 3 is arranged substantially in the form of a hollow ring with an opening 30 arranged therethrough for the passage of the dielectric element 5. The thickness of the support 3 is substantially the same as the thickness of the dielectric element 5. The plane of the top end of the support member 3 is at the same vertical height as the surface of the dielectric element 5 facing the patient body surface, that is, the surface of the support member 3 close to the patient body surface is coplanar with the surface of the dielectric element 5 close to the patient body surface. The opening 30 is arranged in a circle having a diameter substantially the same as the diameter of the dielectric element 5. The opening 30 is used to accommodate the dielectric element 5 after the high heat dissipation performance electrode 100 is assembled.
The support 3 and the dielectric element 5 are both arranged on the same side of the flexible circuit board 6. The supporting member 3 and the heat dissipation reinforcing member 7 are respectively located on two opposite sides of the flexible circuit board 6. The supporting member 3 is in a sheet shape, and can be made of Polyethylene (PE) material, PET material, heat-conducting silica gel sheet, or soft, stable in chemical property, light in weight, not easy to deform and non-toxic insulating material compounded by polyurethane, polyethylene, dispersing agent, flame retardant, carbon fiber and the like. The supporting member 3 is disposed around the dielectric element 5 for positioning and supporting the adhesive member 2, and meanwhile, the wearing comfort of the electrode 100 with high heat dissipation performance can be improved. The flexible circuit board 6 is sandwiched between the supporting member 3 and the heat dissipation reinforcing member 7. The support 3 in this embodiment may be a flexible foam. One side of the supporting piece 3 close to the body surface of the patient is jointed with the sticking piece 2, and one side of the supporting piece 3 far away from the body surface of the patient is jointed with the backing 8 through the biocompatible adhesive arranged on the backing 8.
The pasting piece 2 is arranged in a sheet shape, and one side of the pasting piece is attached to one side surface of the support piece 3 and the dielectric element 5 close to the body surface of the patient. The other side of the pasting piece 2 is attached to the corresponding part of the isolating piece 1 when the high heat dissipation performance electrode 100 is not used, and is attached to the body surface of a patient when the high heat dissipation performance electrode 100 is used so as to closely attach the high heat dissipation performance electrode 100 to the body surface corresponding to the tumor of the patient. The pasting piece 2 is conductive hydrogel, can enhance the comfort level of pasting of the dielectric element 5 of the electrode 100 with high heat dissipation performance and the body surface of a patient, and can be used as a conductive medium, so that an alternating current electric field passing through the dielectric element 5 can be conveniently penetrated and applied to the tumor part of the patient. In this embodiment, the number of the adhesive members 2 is the same as the number of the supporting members 3.
The separator 1 is attached to other parts of the backing 8 except the electrical functional component 9 through the biocompatible adhesive coated on the backing 8, and is used for covering the electrical functional component 9, the supporting member 3 and the adhesive member 2 which are arranged on the electrical functional component 9, so as to protect the adhesive member 2 and the biocompatible adhesive on the backing 8 and prevent the adhesive member 2 and the biocompatible adhesive on the backing 8 from being polluted. The spacer 1 is made of an insulating material.
The electrode 100 with high heat dissipation performance of the invention sequentially arranges the electric functional component 9 and the support 3 on the backing 8 through the biocompatible adhesive coated on the backing 8, and extrudes the adhesive part 2 arranged on the support 3 through the backing 8 to enhance the adhesion between the adhesive part 2 and the corresponding body surface of the tumor part of the patient, thereby ensuring that the dielectric element 5 of the electric functional component 9 is tightly adhered to the corresponding skin surface of the tumor part of the patient through the adhesive part 2 while adhering the electrode 100 with high heat dissipation performance on the body surface of the patient, and further applying an alternating electric field to the tumor part of the patient through the dielectric element 5 welded with a conductive part (not shown) of the flexible circuit board 6 to treat the tumor.
Comparing the high heat dissipation performance electrode 100 using a metal plate or a metal alloy plate (aluminum metal plate, heat conductivity coefficient is 237W/mK) with a heat conductivity coefficient of more than 200W/mK as the heat dissipation reinforcement 7 with the temperature rise rate of the skin surface of the patient using an epoxy glass cloth laminated plate with the same area, the same thickness, and the heat conductivity coefficient of 0.2W/mK as the heat dissipation reinforcement 7 under the conditions of the same applied electric field, the same electrode application position, and the same treatment time, the result shows: the skin surface temperature rise speed of the patient adopting the electrode of the epoxy glass cloth laminated board is about 0.0223 ℃/s (the temperature test range is 36.5 ℃ to 39 ℃), while the skin surface temperature rise speed of the patient adopting the high heat dissipation performance electrode 100 of the invention is about 0.0178 ℃/s (the temperature test range is 36.5 ℃ to 39 ℃); the temperature rise speed of the electrode adopting the aluminum metal plate as the heat dissipation reinforcing part 7 is reduced by about 20.2 percent in the actual use process compared with the electrode adopting the epoxy glass cloth laminated plate.
The tests prove that the high-heat-dissipation-performance electrode 100 has high heat conductivity by adopting the heat-dissipation reinforcing part 7 with the heat conductivity coefficient larger than 200W/mK and the uniformly-distributed heat-dissipation through holes 70 arranged on the heat-dissipation reinforcing part, and can quickly conduct out heat gathered by the skin of the body surface of a patient when a high-level alternating electric field is applied for a long time to raise the body surface temperature of the tumor part of the patient to a certain threshold value, so that the tumor electric field treatment has a good treatment effect, and the electric field intensity is not required to be reduced by quickly reducing the alternating voltage applied to the electrode so as to reduce the body surface temperature of the tumor part of the patient and reduce the treatment effect of the tumor electric field.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (25)
1. A high heat dispersion electrode for applying an alternating electric field to a target region of a patient during tumor electric field treatment, comprising a backing, a flexible circuit board disposed on the backing, and a dielectric element disposed on the flexible circuit board, wherein: the high heat dissipation performance electrode further comprises heat dissipation reinforcing parts arranged on the flexible circuit board, the heat dissipation reinforcing parts and the dielectric elements are respectively arranged on two opposite sides of the flexible circuit board, the heat dissipation reinforcing parts are clamped between the flexible circuit board and the back lining, and the heat dissipation reinforcing parts are made of materials with heat conductivity coefficients larger than 200W/mK.
2. The electrode with high heat dissipation performance according to claim 1, wherein: the heat dissipation reinforcing piece is provided with at least one heat dissipation through hole.
3. The electrode with high heat dissipation performance according to claim 2, wherein: the heat dissipation reinforcing piece is a metal plate or a metal alloy plate or a graphene composite plate.
4. The high heat dissipation performance electrode as recited in claim 3, wherein: the heat dissipation reinforcing piece is a metal plate or a metal alloy plate with the thickness of 0.1-0.7 mm.
5. The electrode with high heat dissipation performance according to claim 4, wherein: the heat dissipation reinforcing part is an aluminum plate or an aluminum alloy plate with the thickness of 0.3-0.6 mm.
6. The electrode with high heat dissipation performance according to claim 5, wherein: the heat dissipation reinforcement is an aluminum plate with the thickness of 0.6 mm.
7. The electrode with high heat dissipation performance according to claim 6, wherein: the number of the heat dissipation through holes is 30, the heat dissipation through holes are evenly distributed on the aluminum plate, and the diameter of each heat dissipation through hole is 0.5 mm.
8. The electrode with high heat dissipation performance according to claim 5, wherein: the heat dissipation reinforcement is an aluminum alloy plate with the thickness of 0.3mm, and the heat conductivity coefficient of the aluminum alloy plate is 201W/mK.
9. The electrode with high heat dissipation performance according to claim 8, wherein: the number of the heat dissipation through holes is 50, the heat dissipation through holes are evenly distributed on the aluminum alloy plate, and the diameter of each heat dissipation through hole is 0.4 mm.
10. The high heat dissipation performance electrode as recited in claim 3, wherein: the heat dissipation reinforcing piece is a graphene composite plate with the thickness of 0.1mm, and the heat conductivity coefficient of the heat dissipation reinforcing piece is larger than 300W/mK.
11. The high heat dissipation performance electrode according to any one of claims 1 to 10, wherein: the adhesive device further comprises a supporting piece sleeved around the dielectric element and an adhesive piece covered on the supporting piece and the dielectric element.
12. The electrode with high heat dissipation performance according to claim 11, wherein: the support member has an opening disposed therethrough for the dielectric element to pass through.
13. The electrode with high heat dissipation performance according to claim 11, wherein: the temperature sensor is arranged on the flexible circuit board and positioned between the flexible circuit board and the pasting piece.
14. The electrode with high heat dissipation performance according to claim 13, wherein: the dielectric element is provided with a through hole which penetrates through the dielectric element, and the temperature sensor is accommodated in the through hole of the dielectric element, is in contact with the pasting piece and is used for detecting the temperature of the pasting piece.
15. The electrode with high heat dissipation performance according to claim 13, wherein: the temperature sensor and the heat dissipation reinforcing part are respectively positioned at two opposite sides of the flexible circuit board.
16. A high heat dissipation performance electrode for application to a body surface corresponding to a target area of a patient to apply an alternating electric field to the target area of the patient, comprising a flexible backing and an electrical functional assembly supported by the flexible backing, the electrical functional assembly comprising a dielectric element proximate to the body surface corresponding to the target area of the patient, wherein: the electric function component is also provided with a heat dissipation reinforcing piece corresponding to the dielectric element, the heat dissipation reinforcing piece is clamped between the dielectric element and the flexible backing, and the heat dissipation reinforcing piece is made of a material with a heat conductivity coefficient larger than 200W/mK.
17. The high heat dissipation performance electrode as recited in claim 16, wherein: the heat dissipation reinforcing piece is arranged on one side, far away from the body surface of the target area of the patient, of the dielectric element, and at least one heat dissipation through hole penetrates through the heat dissipation reinforcing piece.
18. The high heat dissipation performance electrode as recited in claim 16, wherein: the heat dissipation reinforcing piece is a metal plate or a metal alloy plate with the thickness of 0.1-0.7 mm.
19. The high heat dissipation performance electrode as recited in claim 18, wherein: the heat dissipation reinforcing part is an aluminum plate or an aluminum alloy plate with the thickness of 0.3-0.6 mm.
20. The electrode with high heat dissipation performance according to claim 17, wherein: the heat dissipation reinforcement is 0.6 mm's aluminum plate, the quantity of heat dissipation through-hole is 30 and evenly distributed in aluminum plate is last, the diameter of heat dissipation through-hole is 0.5 mm.
21. The electrode with high heat dissipation performance according to claim 17, wherein: the heat dissipation reinforcement is that thickness is at 0.3 mm's aluminum alloy plate, aluminum alloy plate's coefficient of heat conductivity is 201W/mK, the quantity of heat dissipation through-hole is 50 and evenly distributed in on the aluminum alloy plate, the diameter of heat dissipation through-hole is 0.4 mm.
22. The high heat dissipation performance electrode as recited in claim 16, wherein: the heat dissipation reinforcing piece is a graphene composite plate with the thickness of 0.1mm, and the heat conductivity coefficient of the heat dissipation reinforcing piece is larger than 300W/mK.
23. The high heat dissipation performance electrode as recited in claim 16, wherein: the flexible back lining is provided with a dielectric element, a support piece adhered to the flexible back lining and arranged around the dielectric element, and an adhesive piece covering the support piece and the dielectric element.
24. The electrode with high heat dissipation performance according to claim 23, wherein: the electrical function assembly further includes a temperature sensor in contact with the adhesive member for sensing a temperature of the adhesive member.
25. The electrode with high heat dissipation performance according to claim 24, wherein: the heat dissipation reinforcement member is electrically insulated from the dielectric element.
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