CN114099961A - Electrode patch application method - Google Patents

Abstract

The invention provides an application method of an electrode patch, wherein the electrode patch is applied to the corresponding position of the head of a patient, and the application method comprises the following steps: providing 4 electrode patches, wherein each electrode patch comprises a transducer array for applying an alternating electric field to a patient, a backing for supporting the transducer array and a lead electrically connected with the transducer array, and the backing is provided with a side wing for assisting positioning; 4 electrode patches were applied to the respective positions of the patient's head by means of the flanks of the backings of the respective electrode patches. According to the application method of the electrode patch, 4 electrode patches are respectively applied to the front side, the left side, the right side and the rear side of the head by means of the side wings of the back lining of the electrode patch, so that the phenomenon that the application position of the electrode patch is not appropriate, the electrode patches are overlapped to influence the treatment effect can be avoided, the application efficiency can be improved, the phenomenon that the impedance between the electrode patch and the skin is increased due to repeated application of the electrode patch can be avoided, and further the skin is scalded at low temperature due to the increase of heat generation of the electrode patch.

Description

Electrode patch application method

Technical Field

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

Background

At present, the treatment modes of tumors mainly comprise operations, radiotherapy, chemotherapy and the like, but the methods have corresponding defects, for example, radiotherapy and chemotherapy can generate side effects and kill normal cells. The electric field treatment of tumor is one of the current development fronts, and is a tumor treatment method which uses low-intensity, medium-high frequency alternating electric field to interfere the mitotic process of cancer cells. Research shows that the electric field treatment has obvious effect in treating glioblastoma, non-small cell lung cancer, malignant pleural mesothelioma and other diseases, and the electric field applied by the treatment method can influence the aggregation of tubulin of dividing cancer cells, prevent the formation of spindles of the dividing cancer cells, inhibit the mitosis process of the cancer cells and induce the apoptosis of the cancer cells.

The electric field therapeutic apparatus for treating tumor mainly comprises an electric field generating device and an electrode patch electrically connected with the electric field generating device. The electrode patch comprises a transducer array for applying an alternating electric field to a tumor site of a patient, a backing for arranging the transducer array on a body surface corresponding to the tumor site of the patient, and a lead connected with the transducer array. The electrode patch is electrically connected with the electric field generating device through a lead. The alternating voltage for treating the tumor of the electric field therapeutic apparatus is generated by the electric field generating device and is applied to the tumor part of the patient by the transducer array of the electrode patch to carry out tumor electric field therapy. In order to achieve effective treatment effect, the electrode patches are required to be applied to the corresponding skin surfaces of the tumor parts of the patients in pairs, so that an alternating electric field which tends to be parallel can be formed between the two electrode patches to inhibit the mitosis of cancer cells, and the aim of tumor treatment is fulfilled. When the tumor part of a patient is on the skull, due to the approximately spherical structure of the skull, the problems of improper pasting position and overlapping of electrode patches are easy to occur. When the application position is improper, the electrode patch is torn off and applied to the proper position again, so that the application property between the electrode patch and the skin is affected, the impedance between the electrode patch and the skin is easily increased, and the heat generated by the transducer array is increased, so that the skin is scalded at low temperature.

Accordingly, there is a need for an improved method of applying an electrode patch that overcomes the problems of the prior art.

Disclosure of Invention

The invention provides an electrode patch application method, which can quickly and accurately apply two pairs of electrode patches for tumor electric field treatment to the head.

The invention is realized by the following technical scheme: an application method of an electrode patch for applying an alternating electric field to a tumor site of a patient for tumor electric field treatment, the electrode patch being applied to a corresponding position on the head of the patient, comprising the steps of: s10: providing 4 electrode patches, wherein each electrode patch comprises a transducer array for applying an alternating electric field to a patient, a backing for supporting the transducer array and a lead electrically connected with the transducer array, and the backing is provided with a side wing for assisting positioning; s20: 4 electrode patches were applied to the respective positions of the patient's head by means of the flanks of the backings of the respective electrode patches.

Further, the backing of the electrode patch is provided with a notch which is formed by arranging the periphery of the backing in a concave-convex shape and is used for assisting positioning.

Further, the side wings of the backing of the electrode patch are arranged to protrude outwards from the peripheral side of the backing.

Further, the notch of the backing of the electrode patch is formed by inward depression of the peripheral side of the backing.

Furthermore, the back lining is provided with a long side edge and a short side edge which are oppositely arranged, the side wings are multiple and are respectively arranged on the long side edge and the short side edge of the back lining, and the notches are arranged on the long side edge of the back lining.

Furthermore, the lead is led out from one long side edge of the back lining and is arranged in a staggered manner with the side wing and the notch which are positioned on the long side edge.

Furthermore, the two side wings arranged on the same long side of the backing are arranged at intervals, the one side wing arranged on the same short side of the backing is arranged, and the notch is arranged in the middle of the two side wings positioned on the same long side.

Furthermore, the side wings positioned on the short side edges of the backing are arranged by protruding outwards from the middle parts of the short side edges, and the notches are formed by inwards sinking at the middle parts of the long side edges of the backing.

Further, the backing has recessed corners recessed inward from the corners thereof and communicating with the outside.

Further, the corresponding positions of the head of the patient in step S20 are the front and back sides and the left and right sides of the head of the patient, respectively, which includes the following steps: s21: respectively applying two electrode patches to the left side and the right side of the head of a patient by means of the side wings of the backing of the electrode patches; s22: the other two electrode patches are applied to the front and back sides of the patient's head, respectively, by means of the side wings of the electrode patch's backing.

Further, the two electrode patches in step S21 are transversely applied to the left and right sides of the head of the patient, respectively.

Further, the backing of the electrode patch is flanked by the backing of the electrode patch on the short side.

Further, the two electrode patches in step S21 are respectively applied to the left and right sides of the head of the patient in a manner that the two leads are oriented in the same direction.

Further, the two electrode patches in step S21 are respectively applied to the left and right sides of the head of the patient in a manner that the two leads face the left side of the head of the patient.

Further, the two electrode patches in step S21 are respectively applied to the left and right sides of the head of the patient in a manner that the two leads face the right side of the head of the patient.

Further, the two electrode patches in step S21 are respectively applied to the left and right sides of the head of the patient in a manner that the two leads face in opposite directions.

Further, the two electrode patches in step S21 are respectively applied to the left and right sides of the head of the patient in a manner that one lead faces the left side of the head of the patient and the other lead faces the right side of the head of the patient.

Further, the two electrode patches in step S21 are respectively applied to the left and right sides of the head of the patient in a manner that the two leads face each other left and right.

Further, the two electrode patches in step S21 are respectively applied to the left and right sides of the head of the patient in a manner that the two leads are separated from each other.

Further, in the step S21, the two electrode patches are respectively applied to the left and right sides of the head of the patient by means of the side wings of the backing of the electrode patches, and the two electrode patches are respectively applied to the left and right sides of the head of the patient in such a manner that a gap of the backing is aligned with the upper edge of the ear canal bone of the head of the patient.

Further, the step S21 of applying the electrode patches to the left and right sides of the head of the patient respectively by means of the side wings of the backing of the electrode patches includes the following steps: s210: applying an electrode patch to the left side of the patient's head with the backing of the electrode patch flanking the short side and with a notch in the backing at the long side aligned with the upper edge of the patient's head left ear canal bone; s211: the electrode patch is applied to the right side of the patient's head with the backing of the other electrode patch flanking the short side in such a way that a notch in the backing at the long side is aligned with the upper edge of the patient's head right ear canal bone.

Further, the side flap of the backing with the electrode patch in the step S21 is specifically a side flap of the backing holding the electrode patch on the short side.

Further, the order of step S210 and step S211 may be interchanged.

Further, the step S22 includes the following steps: s220: the side wings of the back lining of the electrode patches, which are positioned on the short sides, are aligned with the corresponding parts of the head of the patient so as to respectively apply the electrode patches to the front side and the back side of the head of the patient; or S220': the electrode patches are respectively applied to the front and the back sides of the head of the patient by means of the backing of the electrode patches which are positioned at the lateral wings of the short side edges and aligning a notch of the backing with the corresponding part of the head of the patient.

Further, the corresponding parts of the patient in step S220 and step S220' are the upper margin of the glabella and the upper margin of the occipital bone of the head of the patient.

Further, the two electrode patches in step S220 are respectively and longitudinally applied to the front and back sides of the head of the patient.

Further, the two electrode patches in step S220 are respectively applied to the front and back sides of the head of the patient in a manner that the two leads face the same direction.

Further, the two electrode patches in step S220 are respectively attached to the front and back sides of the head of the patient in a manner that the two leads face the left side of the patient.

Further, the two electrode patches in step S220 are respectively attached to the front and back sides of the head of the patient in a manner that the two leads face the right side of the patient.

Further, step S220 includes the following steps: s2201: applying the electrode patch to the anterior side of the patient's head with the electrode patch's backing flanking the long side aligned with the patient's supraglabellar edge with the electrode patch's backing flanking the short side; s2202: the electrode patch is applied to the back of the patient's head by its backing on the long side flanking its backing in alignment with the patient's superior occipital edge on the short side.

Further, the side of the backing of the electrode patch on the long side in step S2201 and step S2202 is the side of the backing of the electrode patch on the long side.

Further, the order of step S2201 and step S2202 may be interchanged.

Further, the two electrode patches in step S220' are transversely applied to the front and back sides of the head of the patient, respectively.

Further, the two electrode patches in step S220' are respectively applied to the front and back sides of the head of the patient in a manner that the two leads face the same direction.

Further, the two electrode patches in step S220' are respectively applied to the front and back sides of the head of the patient in a manner that the two leads face the back side of the head of the patient.

Further, the step S220' includes the steps of: s2201': applying an electrode patch to the front side of the patient's head by flanking the backing of the electrode patch on the short side such that a notch in the backing of the electrode patch on the long side is aligned with the upper edge of the patient's brow; s2202': the electrode patch is applied to the back of the patient's head by flanking the backing of the other electrode patch on the short side so that a notch in the backing of the electrode patch on the long side is aligned with the upper edge of the patient's occipital bone.

Further, the step S2201 'and the step S2202' flank the short side by the backing of the electrode patch are to flank the backing of the holding electrode patch on the short side.

Further, the sequence of the step S2201 'and the step S2202' may be interchanged, and the sequence of the step S21 and the step S22 may be interchanged.

Further, the medical device also comprises a lead for restraining the corresponding electrode patches after the 4 electrode patches are applied to the corresponding parts of the patient.

Further, the leads of the electrode patch are constrained to the corresponding portion of the patient or the surface of the remaining electrode patches by a band or tape.

According to the application method of the electrode patches, the four electrode patches are respectively applied to the front side, the left side, the right side and the rear side of the head of a patient by means of the side wings of the back lining of the electrode patches, the phenomenon that the application positions of the electrode patches are not appropriate, the electrode patches are overlapped to influence the treatment effect can be avoided, the application efficiency of the electrode patches can be improved, the phenomenon that the impedance between the electrode patches and the skin is increased due to repeated application of the electrode patches can be avoided, and further the skin is scalded at low temperature due to the increase of heat generated by the electrode patches.

Drawings

Fig. 1 is a flowchart illustrating steps of an electrode patch application method according to the present invention.

Fig. 2 to 5 are schematic views respectively showing four electrode patch application states obtained by the electrode patch application method of fig. 1.

Fig. 6 is a perspective assembly view of the electrode patch of fig. 2 to 5.

Fig. 7 is an exploded perspective view of the electrode patch of fig. 6.

Description of reference numerals:

electrode patch 100,transducer array 1,dielectric electrode 10, connectingpart 11,wiring part 12,backing 2,notch 21,side wing 22,reentrant corner 23,support 3, through-hole 30,wire 4,heat shrink 41,plug 42, adhesive 5.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of devices, systems, apparatus, and methods consistent with certain aspects of the invention.

The therapeutic apparatus (not shown) for treating tumor of the present invention includes an electric field generator (not shown) and anelectrode patch 100 connected to the electric field generator (not shown). Referring to fig. 6 and 7, theelectrode patch 100 is attached to the skin surface of a human body, and a therapeutic electric field generated by an electric field generator (not shown) is applied to the human body to perform electric field therapy of tumors. Theelectrode patch 100 of the embodiment of the present invention is applied to the head of a human body for the adjuvant therapy of brain tumors, such as glioblastoma multiforme.

Fig. 1 is a schematic flow chart illustrating an application method of anelectrode patch 100 for electric field therapy of tumor by applying an alternating electric field to a tumor site of a patient according to the present invention, and fig. 2 to 5 are schematic charts illustrating four states of theelectrode patch 100 after theelectrode patch 100 is applied to the head of the patient according to the application method of theelectrode patch 100 of the present invention. The application method of theelectrode patch 100 for applying an alternating electric field to a tumor part of a patient to perform tumor electric field treatment of the invention specifically comprises the following steps:

s10: providing 4electrode patches 100, saidelectrode patches 100 comprising atransducer array 1 for applying an alternating electric field to a patient and abacking 2 supporting thetransducer array 1, saidbacking 2 having side flaps 22 for assisting in positioning;

s20: the 4electrode patches 100 are applied to the respective positions of the patient's head by means of the side flaps 22 of thebacking 2 of therespective electrode patches 100.

As shown in fig. 6 and 7, theelectrode patch 100 in step S10 further includes asupport 3 supported by thebacking 2 and surrounding a corresponding portion of thetransducer array 1, alead 4 electrically connected to thetransducer array 1, and an adhesive 5 covering the corresponding portion of thesupport 3 and thetransducer array 1. Theelectrode patch 100 is attached to the body surface of the patient corresponding to the intracranial tumor part through thebacking 2, and applies an alternating electric field to the intracranial tumor part of the patient through thetransducer array 1 to interfere or prevent mitosis of cancer cells of the patient, thereby achieving the purpose of treating the tumor.

Thebacking 2 of theelectrode patch 100 described in step S10 is provided in a substantially rectangular parallelepiped sheet shape, which is mainly made of a flexible air-permeable insulating material. Thebacking 2 is a mesh fabric. Specifically, thebacking 2 is a mesh nonwoven fabric. The surface of thebacking 2 facing the surface of the patient is further coated with a biocompatible adhesive (not shown) for closely adhering thebacking 2 to the surface of the patient corresponding to the intracranial tumor site.

Thebacking 2 has a peripheral side provided in an uneven shape. The side flaps 22 are provided on the circumferential side of thebacking 2. The circumference of theback lining 2 is arranged in a concave-convex shape, andnotches 21 which are positioned on two opposite long side edges and used for auxiliary positioning are also formed. Theside flap 22 is in the same plane as thebacking 2 and projects outwardly from thebacking 2. Two side flaps 22 are provided on each long side of thebacking 2. Each short side edge of thebacking 2 has only oneflap 22. In the present embodiment, the number of the side flaps 22 is 6, and they are provided on the circumferential side of thebacking 2 in an axisymmetric manner along the transverse axis of thebacking 2. Specifically, the twoside wings 22 disposed on the same long side of thebacking 2 are disposed on two sides of thenotch 21 on the same side with the two side wings in a spaced symmetry manner. The side flaps 22 provided on the long sides of thebacking 2 are provided to extend outward from the corresponding portions of the long sides of thebacking 2. The side flaps 22 provided on the short sides of thebacking 2 are provided to project outward from the center of the short sides of thebacking 2. Thewings 22 are used to align with the glabella or the upper occipital edge of the patient's head when theelectrode patch 100 is applied to the patient's head, to precisely apply theelectrode patch 100 to the front or back of the patient's head, or to be held by the operator to assist in positioning theelectrode patch 100 through thegap 21.

Thenotches 21 are respectively formed on two opposite long sides of thebacking 2, and are formed by inwards recessing the middle parts of the corresponding long sides of thebacking 2. The number of thenotches 21 is two. The twoside flaps 22, which are located on the same long side of thebacking 2 as thenotch 21, are located on opposite sides of thenotch 21. Thenotches 21 are provided in the middle of the side flaps 22 on the same long side of thebacking 2 as the notches. Thenotch 21 is aligned with the upper edge of the patient's external auditory meatus bone when theelectrode patch 100 is applied, so that theelectrode patch 100 is precisely applied to the left or right side of the patient's head. In some embodiments, thenotch 21 can also be aligned with the patient's glabellum or upper occipital edge when applying theelectrode patch 100 to precisely apply theelectrode patch 100 to the front or back of the patient's head. Thebacking 2 is also provided withconcave angles 23 which are inwards sunken from four corners of thebacking 2, so that wrinkles are prevented from being formed when thebacking 2 is applied to a body surface of a corresponding part of a tumor, and further, low-temperature scald caused by heat increase of thetransducer array 1 due to the fact that air enters the space between theadhesive piece 5 and the skin from the wrinkles and impedance between thetransducer array 1 and the skin is increased is avoided. Thereentrant corner 23 communicates with the outside and is disposed in an "L" shape. The included angle between two sides of theback lining 2 forming theconcave angle 23 is more than or equal to 90 degrees. Thewires 4 are led out from one long side of thebacking 2. Thelead 4 is arranged in a staggered manner with respect to thenotch 21 and theside wing 22 on the long side of thebacking 2.

Thetransducer array 1 is centrally disposed on thebacking 2, and includes a plurality ofdielectric electrodes 10 arranged in an array, a plurality of connectingportions 11 connecting two adjacentdielectric electrodes 10, and awiring portion 12 extending from one connectingportion 11. Thedielectric electrode 10 is capable of applying an alternating voltage to a tumor site of a patient. The plurality ofdielectric electrodes 10 are arranged in a matrix of three rows and three columns, and the number of the dielectric electrodes is 9. The connectingportion 11 is located between two adjacentdielectric electrodes 10 arranged in a column, and the connectingportion 11 is also located between two adjacentdielectric electrodes 10 in the middle row. Each row ofdielectric electrodes 10 at both ends is freely disposed and connected to only oneconnection portion 11. Thetransducer array 1 is arranged in a shape of a Chinese character 'wang'. Thewiring portion 12 is soldered to thelead 4, so as to electrically connect thetransducer array 1 and thelead 4.

The periphery of the welding part of thelead 4 and thewire connecting part 12 is covered with a heat-shrinkable sleeve 41. The heat-shrinkable sleeve 41 performs insulation protection on the connection part of thelead 4 and thewiring part 12 of thetransducer array 1, provides support, prevents the connection part of thelead 4 and thewiring part 12 of thetransducer array 1 from being broken, and is dustproof and waterproof. The end of thelead 4 remote from thewire connection portion 12 is provided with aplug 42 electrically connected to an electric field generator (not shown). One end of thelead 4 is electrically connected with thewiring part 12; the other end is electrically connected to an electric field generator (not shown) through aplug 42 to provide theelectrode patch 100 with an ac signal for tumor therapy during tumor electric field therapy.

Thesupport 3 is adhered to thebacking 2. A through hole 30 is arranged in the middle of the supportingpart 3. Thesupport 3 is arranged around the outside of thedielectric electrode 10 by means of a through-hole 30. Thedielectric electrodes 10 located in the same column may be surrounded by thesame support 3. Thesupport 3 may be made of a foam material. In this embodiment, the number of thesupporters 3 is 3, and the supporters are arranged side by side at intervals and respectively surround the outer sides of thedielectric electrodes 10 in different rows. Thesupport 3 is flush with the surface of thedielectric electrode 10 on the side remote from thebacking 2. That is, thesupport member 3 is flush with the surface of thedielectric electrode 10 on the side facing theadhesive member 5. In other embodiments, thesupport 3 is a one-piece structure, and three through holes 30 corresponding to three rows of thedielectric electrodes 10 are arranged in the middle of thesupport 3.

Theadhesive member 5 has double-sided adhesive properties. One surface of theadhesive member 5 is adhered to the surface of thesupport member 3 and thedielectric electrode 10 on the side away from thebacking 2. The other side of thepasting piece 5 is used as a pasting layer and is pasted on the skin of the surface of a human body to keep the skin surface moist and relieve local pressure. Theadhesive element 5 may preferably be a conductive adhesive element to act as a conductive medium. Theadhesive member 5 has better application property with the skin of the human body under the supporting action of the supportingmember 3.

The corresponding positions of the head of the patient in the step S20 are the left and right sides, the front and back sides of the head of the patient, and the method comprises the following steps:

s21: applying twoelectrode patches 100 to the left and right sides of the patient's head by means of the side flaps 22 of thebacking 2 of theelectrode patches 100, respectively;

s22: twofurther electrode patches 100 are applied to the front and back sides of the patient's head, respectively, by means of the side flaps 22 of thebacking 2 of theelectrode patch 100.

The order of step S21 and step S22 may be interchanged. The twoelectrode patches 100 described in step S21 are transversely applied to the left and right sides of the head of the patient, respectively. The side flaps 22 of thebacking 2 of theelectrode patch 100 are in particular the side flaps 22 of thebacking 2 of theelectrode patch 100 on the short side.

The twoelectrode patches 100 described in step S21 are applied to the left and right sides of the head of the patient in such a manner that the twoleads 4 are oriented in the same direction. Specifically, the twoelectrode patches 100 are respectively applied to the left and right sides of the head of the patient in a manner that the twoleads 4 face the left side of the head of the patient, as shown in fig. 3; or the twoelectrode patches 100 are respectively applied to the left and right sides of the head of the patient in a manner that the twoleads 4 face the right side of the head of the patient, as shown in fig. 1.

Alternatively, the two-electrode patch 100 in step S21 is applied to the left and right sides of the head of the patient in a manner that theleads 4 face in opposite directions. Specifically, thelead 4 of oneelectrode patch 100 of the twoelectrode patches 100 faces to the left side of the head of the patient, and thelead 4 of theother electrode patch 100 faces to the right side, as shown in fig. 4 and 5. Specifically, the twoelectrode patches 100 are respectively attached to the left and right sides of the head of the patient in a manner that the twoleads 4 face each other from left to right, as shown in fig. 4; or the twoelectrode patches 100 are respectively attached to the left and right sides of the head of the patient in a manner that the twoleads 4 are separated from each other left and right, as shown in fig. 5.

Step S21, the twoelectrode patches 100 are respectively applied to the left and right sides of the head of the patient by means of theside wings 22 of thebacking 2 of theelectrode patch 100, specifically, by means of theside wings 22 of thebacking 2 of theelectrode patch 100, so that thenotch 21 of thebacking 2 is aligned with the upper edge of the ear canal bone of the head of the patient, and the method comprises the following steps:

s210: applying theelectrode patch 100 to the left side of the patient's head by means of thebacking 2 of theelectrode patch 100 on the short-sided side 22 and aligning anotch 21 of thebacking 2 on the long-sided side with the upper edge of the patient's head left ear canal bone;

s211: theelectrode patch 100 is applied to the right side of the patient's head with thebacking 2 of theother electrode patch 100 on the short-sided side 22 in such a way that anotch 21 in the long-sided side of thebacking 2 is aligned with the upper edge of the patient's head right ear canal bone.

The order of step S210 and step S211 may be interchanged. Theside flap 22 with thebacking 2 of theelectrode patch 100 described in step S210 or S211 is specifically theside flap 22 that holds thebacking 2 of theelectrode patch 100 on the short side.

Step S22, the step of applying the twoother electrode patches 100 to the front and back sides of the head of the patient by means of the side flaps 22 of thebacking 2 of theelectrode patch 100, specifically by means of the side flaps 22 of thebacking 2 of theelectrode patch 100 located at the short sides, includes the steps of:

s220: theside wings 22 of theelectrode patches 100 on the short sides are aligned with the corresponding parts of the head of the patient to apply theelectrode patches 100 to the front and the back of the head of the patient respectively;

or

S220': theelectrode patches 100 are applied to the front and rear sides of the patient's head by positioning thebacking 2 of theelectrode patch 100 on the short side of theside flap 22 and aligning anotch 21 in thebacking 2 with the corresponding portion of the patient's head.

The corresponding position of the head of the patient in step S220 or step S220' is specifically the upper edge of the glabella or the upper edge of the occipital bone of the head of the patient.

The twoelectrode patches 100 in step S220 are longitudinally applied to the front and rear sides of the head of the patient, respectively. The twoelectrode patches 100 of step S220 are respectively applied to the front and back sides of the head of the patient in a manner that the twoleads 4 face the same direction. Specifically, the twoelectrode patches 100 are respectively applied to the front and rear sides of the head of the patient in a manner that the twoleads 4 face the left side of the head of the patient, as shown in fig. 3 or fig. 4; or the twoelectrode patches 100 are respectively applied to the front and rear sides of the head of the patient in a manner that the twoleads 4 face the right side of the head of the patient, as shown in fig. 2.

The step S220 of aligning theshort side flap 22 of theelectrode patch 100 with the corresponding portion of the head of the patient by means of thebacking 2 of theelectrode patch 100 is to align theshort side flap 22 of theelectrode patch 100 with the upper edge of the brow or the upper edge of the occiput of the head of the patient by means of thelong side flap 22 of thebacking 2 of theelectrode patch 100.

The step S220 of aligning thelateral wing 22 of theelectrode patch 100 on the short side with the corresponding part of the head of the patient to apply the twoelectrode patches 100 to the front and the back sides of the head of the patient, specifically, aligning thelateral wing 22 of theelectrode patch 100 on the short side with the upper edge of the brow bone or the upper edge of the occiput bone of the head of the patient to apply the twoelectrode patches 100 to the front and the back sides of the head of the patient, includes the following steps:

s2201: applying theelectrode patch 100 to the front side of the patient's head by aligning theside flap 22 of theelectrode patch 100 on the short side with the upper edge of the patient's brow by means of theside flap 22 of theelectrode patch 100 on the long side with thebacking 2 of theelectrode patch 100 on the short side;

s2202: theelectrode patch 100 is applied to the back of the patient's head by theside flap 22 of thebacking 2 of theelectrode patch 100 on the long side aligning theside flap 22 of thebacking 2 of theelectrode patch 100 on the short side with the upper edge of the patient's occipital bone.

The order of step S2201 and step S2202 may be interchanged. The side flaps 22 on the long sides by thebacking 2 of theelectrode patch 100 in steps S2201 and S2202 are specifically the side flaps 22 on the long sides by holding thebacking 2 of theelectrode patch 100.

The twoelectrode patches 100 in step S220' are transversely applied to the front and rear sides of the head of the patient, respectively. The twoelectrode patches 100 described in step S220' are respectively applied to the front and rear sides of the head of the patient in such a manner that the twoleads 4 face the same direction. Specifically, the twoelectrode patches 100 are respectively applied to the front and rear sides of the head of the patient in such a manner that the twoleads 4 face the rear side of the head of the patient, as shown in fig. 5.

The step of aligning anotch 21 of thebacking 2 with the corresponding portion of the patient ' S head as described in step S220 ' is to align anotch 21 of thebacking 2 of theelectrode patch 100 on the long side with the upper edge of the brow or the upper edge of the occiput of the patient ' S head.

The step S220 ' of aligning the side flaps 22 of theelectrode patch 100 on the short sides with the corresponding portions of the patient ' S head to apply theelectrode patches 100 to the front and rear sides of the patient ' S head, respectively, includes the steps of:

s2201': applying anelectrode patch 100 to the front side of the patient's head by aligning anotch 21 on the long side of thebacking 2 of theelectrode patch 100 with theupper margin 21 of the patient's brow by means of theside flap 22 on the short side of thebacking 2 of theelectrode patch 100;

s2202': theelectrode patch 100 is applied to the back of the patient's head by aligning anotch 21 in the long side of thebacking 2 of theelectrode patch 100 with the upper edge of the patient's occipital bone via aflap 22 in the short side of thebacking 2 of theother electrode patch 100.

The order of step S2201 'and step S2202' may be interchanged. Theside flap 22 located on the short side by thebacking 2 of theelectrode patch 100 in step S2201 'and step S2202' is specifically theside flap 22 located on the short side by holding thebacking 2 of theelectrode patch 100.

The application method of theelectrode patch 100 for applying an alternating electric field to a tumor site of a patient to perform electric field therapy for the tumor of the invention further comprises the following steps before the application of the electrode patch 100:

s00: the skin of the patient at the corresponding position where theelectrode patch 100 is to be applied is cleaned.

The step S0 of cleaning the skin of the patient at the corresponding position on the head where theelectrode patch 100 is to be applied specifically includes the following steps:

step S01: shaving off hairs on the skin of the head to which theelectrode patch 100 is to be applied;

step S02; the skin of the hair area was shaved by wiping the head with alcohol.

Step S01 is to shave off the hairs on the skin of the head of theelectrode patch 100 to be applied, so as to avoid the influence of the hairs on the application property of theelectrode patch 100, and avoid the increase of impedance between theelectrode patch 100 and the skin due to the gap between the scalp and theelectrode patch 100, which results in the increase of heat generation of theelectrode patch 100 and the low-temperature scald of the skin at the position where theelectrode patch 100 is applied to the head of the patient. Step S02 can remove grease and impurities on the surface of the skin of the head of the patient, and keep the skin clean, so as to facilitate thesubsequent electrode patch 100 to be better applied to the scalp.

The application method of theelectrode patch 100 of the present invention further includes the steps of:

step S30: thewires 4 of therespective electrode patches 100 are constrained by means of a tape or tape.

The step S30 of constraining the lead of thecorresponding electrode patch 100 by the belt or the adhesive tape is to adhere thelead 4 of thecorresponding electrode patch 100 to the scalp, the neck or the surface of the rest of theelectrode patches 100 by the medical adhesive tape, so as to reduce the problem that the position of theelectrode patch 100 is shifted or theelectrode patch 100 falls off due to the external force acting on thelead 4.

The step S30 of constraining theleads 4 of the correspondingelectrode patches 100 with the help of the tape or the adhesive tape is to constrain the fourleads 4 of the fourelectrode patches 100 together with the help of the tape or the adhesive tape, so as to avoid the influence of the dispersion of theleads 4 on the activity of the patient, increase the strength of asingle lead 4, and reduce the risk of the position of theelectrode patch 100 shifting or the falling off of theelectrode patch 100 due to thelead 4 pulling theelectrode patch 100.

The application method of theelectrode patch 100 for applying the alternating electric field to the tumor part of the patient to perform the tumor electric field therapy of the invention applies the fourelectrode patches 100 to the front side, the left side, the right side and the rear side of the head of the patient respectively by means of theside wings 22 of theback lining 2 of thecorresponding electrode patch 100, can avoid the improper application position of theelectrode patch 100 and the overlapping of theelectrode patches 100 from influencing the therapeutic effect, can improve the application efficiency of theelectrode patch 100, and can also avoid the impedance increase between theelectrode patch 100 and the skin caused by the repeated application of theelectrode patch 100, thereby causing the low-temperature scald of the skin caused by the increase of the heat production of theelectrode patch 100.

The present invention is not limited to the above preferred embodiments, but rather should be construed as broadly within the spirit and scope of the invention as defined in the appended claims.

Claims (40)

1. An application method of an electrode patch for applying an alternating electric field to a tumor site of a patient for tumor electric field treatment, characterized in that: the electrode patch is applied to the corresponding position of the head of a patient, and comprises the following steps:

s10: providing 4 electrode patches, wherein each electrode patch comprises a transducer array for applying an alternating electric field to a patient, a backing for supporting the transducer array and a lead electrically connected with the transducer array, and the backing is provided with a side wing for assisting positioning;

s20: 4 electrode patches were applied to the respective positions of the patient's head by means of the flanks of the backings of the respective electrode patches.

2. The method of applying an electrode patch as claimed in claim 1, wherein the backing of the electrode patch has a notch formed by a concave-convex arrangement on its peripheral side for assisting positioning.

3. The method of applying an electrode patch as claimed in claim 2, wherein the side flaps of the backing of the electrode patch are provided so as to project outward from the peripheral side of the backing.

4. The method of applying an electrode patch as claimed in claim 3, wherein the notch of the backing of the electrode patch is formed by inward depression of the peripheral side of the backing.

5. A method of applying an electrode patch according to claim 3, wherein the backing has a long side opposed to a short side opposed to the long side, the plurality of side flaps are provided on the long side and the short side of the backing, respectively, and the notches are provided on the long side of the backing.

6. A method of applying an electrode patch as claimed in claim 5, wherein the lead is led out from a long side of the backing and is arranged to be offset from both the side wing and the notch on the long side.

7. The method of applying an electrode patch as claimed in claim 5 or 6, wherein the two side flaps provided on the same long side of the backing are spaced apart from each other, the one side flap provided on the same short side of the backing is spaced apart from each other, and the notch is provided at a position intermediate between the two side flaps on the same long side.

8. The method of claim 7, wherein the side flaps formed on the short sides of the backing are formed to protrude outward from the middle portions of the short sides, and the notches are formed to be recessed inward from the middle portions of the long sides of the backing.

9. The method of applying an electrode patch according to any one of claims 2 to 6, wherein the backing further has a reentrant corner which is depressed inward from a corner thereof and communicates with the outside.

10. The method of applying an electrode patch according to claim 7, wherein: in step S20, the positions of the head of the patient are the front and back sides and the left and right sides of the head of the patient, respectively, which includes the following steps:

s21: respectively applying two electrode patches to the left side and the right side of the head of a patient by means of the side wings of the backing of the electrode patches;

s22: the other two electrode patches are applied to the front and back sides of the patient's head, respectively, by means of the side wings of the electrode patch's backing.

11. The method of applying an electrode patch according to claim 10, wherein the two electrode patches in the step S21 are applied transversely to the left and right sides of the head of the patient, respectively.

12. The method of applying an electrode patch as claimed in claim 10, wherein the backing of the electrode patch is flanked by the backing of the electrode patch on the short side.

13. The method of applying an electrode patch according to claim 10, wherein the two electrode patches in step S21 are applied to the left and right sides of the head of the patient, respectively, in such a manner that the leads thereof are oriented in the same direction.

14. The method of applying an electrode patch according to claim 13, wherein the two electrode patches of step S21 are applied to the left and right sides of the head of the patient in such a manner that both leads thereof face the left side of the head of the patient, respectively.

15. The method of applying an electrode patch according to claim 13, wherein the two electrode patches of step S21 are applied to the left and right sides of the head of the patient in such a manner that both leads thereof face the right side of the head of the patient, respectively.

16. The method of applying an electrode patch according to claim 10, wherein the two electrode patches in step S21 are applied to the left and right sides of the head of the patient respectively in such a manner that the leads thereof face in opposite directions.

17. The method of applying an electrode patch according to claim 16, wherein the two electrode patches in step S21 are applied to the left and right sides of the head of the patient in such a manner that one lead wire is oriented to the left side of the head of the patient and the other lead wire is oriented to the right side of the head of the patient.

18. The method of applying an electrode patch according to claim 16, wherein the two electrode patches in step S21 are applied to the left and right sides of the head of the patient in such a manner that the two leads face each other.

19. The method of applying an electrode patch according to claim 16, wherein the two electrode patches in step S21 are applied to the left and right sides of the head of the patient in such a manner that the two leads are separated from each other.

20. The method of applying an electrode patch according to claim 10, wherein the step S21 of applying the electrode patches to the left and right sides of the head of the patient by means of the side wings of the backing of the electrode patch is performed by applying the electrode patches to the left and right sides of the head of the patient in such a manner that a notch of the backing is aligned with the upper edge of the auditory canal bone of the head of the patient.

21. The method of applying an electrode patch according to claim 12, wherein the step S21 of applying the electrode patches to the left and right sides of the head of the patient by means of the side wings of the backing of the electrode patch includes the steps of:

s210: applying an electrode patch to the left side of the patient's head with the backing of the electrode patch flanking the short side and with a notch in the backing at the long side aligned with the upper edge of the patient's head left ear canal bone;

s211: the electrode patch is applied to the right side of the patient's head with the backing of the other electrode patch flanking the short side in such a way that a notch in the backing at the long side is aligned with the upper edge of the patient's head right ear canal bone.

22. The method of applying an electrode patch as claimed in claim 21, wherein the side flaps of the backing by the electrode patch in step S21 are in particular side flaps that hold the backing of the electrode patch on the short sides.

23. The method of applying an electrode patch according to claim 21, wherein the order of the step S210 and the step S211 is interchangeable.

24. The method of applying an electrode patch according to claim 12, wherein the step S22 includes the steps of:

s220: the side wings of the back lining of the electrode patches, which are positioned on the short sides, are aligned with the corresponding parts of the head of the patient so as to respectively apply the electrode patches to the front side and the back side of the head of the patient; or

S220': the electrode patches are respectively applied to the front and the back sides of the head of the patient by means of the backing of the electrode patches which are positioned at the lateral wings of the short side edges and aligning a notch of the backing with the corresponding part of the head of the patient.

25. The method of applying an electrode patch according to claim 24, wherein the portions of the patient corresponding to the step S220 and the step S220 'are an upper edge of an eyebrow and an upper edge of an occipital bone of the patient' S head.

26. The method of applying an electrode patch according to claim 25, wherein the two electrode patches in the step S220 are longitudinally applied to the front and rear sides of the head of the patient, respectively.

27. The method of applying an electrode patch according to claim 25, wherein the two electrode patches in the step S220 are applied to the front and rear sides of the head of the patient, respectively, in such a manner that the two leads thereof are oriented in the same direction.

28. The method of applying an electrode patch according to claim 25, wherein the two electrode patches in the step S220 are applied to the front and rear sides of the head of the patient in such a manner that the two leads face the left side of the patient, respectively.

29. The method of applying an electrode patch according to claim 25, wherein the two electrode patches in the step S220 are applied to the front and rear sides of the head of the patient in such a manner that the two leads face the right side of the patient, respectively.

30. The method of applying an electrode patch according to claim 25, wherein the step S220 comprises the steps of:

s2201: applying the electrode patch to the anterior side of the patient's head with the electrode patch's backing flanking the long side aligned with the patient's supraglabellar edge with the electrode patch's backing flanking the short side;

s2202: the electrode patch is applied to the back of the patient's head by its backing on the long side flanking its backing in alignment with the patient's superior occipital edge on the short side.

31. The method of applying an electrode patch according to claim 30, wherein the long side of the backing of the electrode patch is flanked by the grasping backing of the electrode patch in steps S2201 and S2202.

32. The method of applying an electrode patch according to claim 31, wherein the order of step S2201 and step S2202 is interchangeable.

33. The method of applying an electrode patch according to claim 25, wherein the two electrode patches in the step S220' are applied to the front and rear sides of the head of the patient in a transverse direction, respectively.

34. The method of applying an electrode patch according to claim 25, wherein the two electrode patches in the step S220' are applied to the front and rear sides of the head of the patient, respectively, in such a manner that the two leads thereof are oriented in the same direction.

35. The method of applying an electrode patch according to claim 25, wherein the two electrode patches of the step S220' are applied to the front and rear sides of the head of the patient in such a manner that the two leads thereof face the rear side of the head of the patient, respectively.

36. The method of applying an electrode patch according to claim 25, wherein the step S220' comprises the steps of:

s2201': applying an electrode patch to the front side of the patient's head by flanking the backing of the electrode patch on the short side such that a notch in the backing of the electrode patch on the long side is aligned with the upper edge of the patient's brow;

s2202': the electrode patch is applied to the back of the patient's head by flanking the backing of the other electrode patch on the short side so that a notch in the backing of the electrode patch on the long side is aligned with the upper edge of the patient's occipital bone.

37. The method of applying an electrode patch according to claim 36, wherein the step S2201 'and the step S2202' are flanked on the short side by the backing of the electrode patch so as to grasp the backing of the electrode patch.

38. The method of applying an electrode patch according to claim 36, wherein the order of the step S2201 'and the step S2202' is interchangeable, and the order of the step S21 and the step S22 is interchangeable.

39. The method of applying an electrode patch according to claim 1, further comprising constraining the leads of the respective electrode patches after 4 electrode patches are applied to the respective sites of the patient.

40. The method of applying an electrode patch as claimed in claim 39, wherein the lead of the electrode patch is constrained to the corresponding portion of the patient or the surface of the remaining electrode patch by a band or tape.

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