CN111938639A - Device for detecting injury degree and range of organism soft tissue based on electrical impedance method - Google Patents
Device for detecting injury degree and range of organism soft tissue based on electrical impedance method Download PDFInfo
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- A61B5/053—Measuring electrical impedance or conductance of a portion of the body
Abstract
The invention discloses a device for detecting the degree and range of injury of organism soft tissues based on an electrical impedance method, which solves the technical problems that the subcutaneous soft tissue injury is short of effective means and is detected quickly, and the possibility of misdiagnosis and missed diagnosis exists in the prior art. The device comprises a conductivity meter, at least two measuring electrodes, a connecting wire and a grid electrode plate, wherein the grid electrode plate is of a hollow structure, each edge of the grid electrode plate is respectively provided with a plurality of meshes for placing the measuring electrodes, the measuring electrodes are placed in the meshes and attached to skin to be detected, the measuring electrodes are connected with the conductivity meter through the connecting wire, and the conductivity between the two measuring electrodes is detected through the conductivity meter. The device can measure the conductivity between different positions on the skin area, provides a digital basis for determining the degree and range of the injury of the soft tissues of the body, reduces the influence of the subjective judgment of a doctor on the result, and can improve the accuracy of the detection result.
Description
Technical Field
The invention relates to the technical field of clinical medical diagnosis and detection equipment, in particular to a device for detecting the degree and range of injury of organism soft tissues based on an electrical impedance method.
Background
Soft tissue injury refers to the tissues of the human body, such as muscle, fascia, tendon, ligament, tendon sheath, bursa, blood vessel, nerve, etc. The tissue is suddenly hit by external violence, pulled, twisted, pressed by gravity, or locally infected by bacteria due to trauma, and the injury is soft tissue injury. Microcirculation disturbance and inflammation appear after the soft tissue is wounded, so that local skin tissues are red, swollen, hot, painful, dysfunctional and the like. The current clinical common local soft tissue injury range and severity inspection method is judged according to clinical symptoms, and the following three aspects are mainly observed:
(1) local inspection: the focus position is found out according to the symptoms of local skin red swelling and hot pain and the damage condition of the skin surface, and the estimated focus range is roughly judged according to the sense examination (visual inspection and palpation).
(2) And (3) inquiring medical history: the time, place, passage, cause of wound formation, self-infection, etc. of the disease are asked.
(3) And (3) whole body examination: whether fever, heart rate change, mental state and the like exist or not is observed.
Although the degree and range of soft tissue injury can be detected by the method, the detection result mainly depends on clinical judgment of doctors, and uniform standards are lacked. The conclusions drawn by different doctors may differ for the same symptom, with errors.
The electrical conductivity of biological tissue cells is related to various ionic concentrations in the tissue, protein quality, tissue water content, tissue cell integrity, temperature, and the like. Normal tissue is relatively constant in the above-mentioned factors, so the conductivity is also relatively constant, or varies little. Such as damage to local tissue cells caused by wound inflammation, changes the internal environment, wherein the ion concentration changes most greatly, the ion concentration distribution of normal tissue intracellular fluid and extracellular fluid is relatively constant, and the mobility of intracellular fluid ions is limited by cell membranes. The normal conductivity mainly reflects the condition of extracellular fluid ions, such as wound inflammation and the like which destroy the integrity of cells, and then the intracellular fluid flows out, so that the conductivity of local tissues is increased, namely, the electrical impedance has a tendency of reducing, the heavier the damage is, the more the cells are destroyed, the more the intracellular fluid flows out, and the more the electrical impedance is reduced. Therefore, the range of the damaged part and the damage degree can be judged based on the change trend of the tissue electrical impedance.
However, the prior art lacks a corresponding device, and therefore, a device for detecting the degree and range of the injury of the soft tissue of the body based on an electrical impedance method is urgently needed.
Disclosure of Invention
One of the purposes of the invention is to provide a device for detecting the degree and range of injury of organism soft tissue based on an electrical impedance method, which solves the technical problems that in the prior art, a clinician can only judge the degree and range of injury according to observation and palpation of patient soft tissue, subcutaneous soft tissue injury is lack of an effective means for rapid detection, and misdiagnosis and missed diagnosis are possible. The various technical effects that can be produced by the preferred technical solution of the present invention are described in detail below.
In order to achieve the purpose, the invention provides the following technical scheme:
the device for detecting the injury degree and range of the soft tissues of the body based on the electrical impedance method comprises a conductivity meter, at least two measuring electrodes, a connecting wire and a grid electrode plate, wherein the grid electrode plate is of a hollow structure, each edge of the grid electrode plate is respectively provided with a plurality of meshes for placing the measuring electrodes, the measuring electrodes are placed in the meshes and attached to the skin to be detected, the measuring electrodes are connected with the conductivity meter through the connecting wire, and the conductivity between the two measuring electrodes is detected through the conductivity meter.
According to a preferred embodiment, the number of measuring electrodes is two.
According to a preferred embodiment, the number of the measuring electrodes is N, N is an even number greater than or equal to 4, N measuring electrodes are equally divided into N/2 groups, and the apparatus further comprises a measuring electrode line change-over switch, the measuring electrodes are connected with the conductivity meter through the measuring electrode line change-over switch, and the working state of each group of measuring electrodes is switched through the measuring electrode line change-over switch.
According to a preferred embodiment, the measuring electrode is of a circular structure, and the diameter of the measuring electrode is 6-15 mm; and a conductive paste layer is arranged on one side of the measuring electrode, which is attached to the skin to be detected.
According to a preferred embodiment, the grid electrode plate is made of a bendable material, so that the grid electrode plate can be attached to the skin to be detected when the grid electrode plate is placed on the skin to be detected.
According to a preferred embodiment, the mesh on the grid electrode plate is in a square structure, and the side length of the mesh is equivalent to the diameter of the measuring electrode, so that after the measuring electrode is placed in the mesh, the measuring electrode can be fixed, and the center of the measuring electrode and the center of the mesh coincide with each other.
According to a preferred embodiment, the distance between the centers of two adjacent meshes on the grid electrode plate is equal, and the distance between the centers of two adjacent meshes is 0.5-2 cm.
According to a preferred embodiment, the size of the grid electrode plate is larger than the estimated wound focus edge by 2-6 cm.
According to a preferred embodiment, the grid electrode plate is of a square structure, and the specification of the grid electrode plate is 9-15 cm by 9-15 cm.
According to a preferred embodiment, the device for detecting the degree and range of the injury of the soft tissues of the body based on the electrical impedance method further comprises a data processor, wherein the data processor is connected with the conductivity meter, and the conductivity meter sends the detected data to the data processor so as to analyze and process the data detected by the conductivity meter through the data processor.
The device for detecting the injury degree and range of the soft tissue of the organism based on the electrical impedance method, provided by the invention, at least has the following beneficial technical effects:
the device for detecting the injury degree and range of the organism soft tissue based on the electrical impedance method comprises a conductivity meter, at least two measuring electrodes, a connecting wire and a grid electrode plate, wherein the grid electrode plate is of a hollow structure, each edge of the grid electrode plate is respectively provided with a plurality of meshes for placing the measuring electrodes, the measuring electrodes are placed in the meshes and are attached to the skin to be detected, the measuring electrodes are connected with the conductivity meter through the connecting wire, and the conductivity between the two measuring electrodes is detected through the conductivity meter, namely, the conductivity between the two measuring electrodes can be detected through the device of the invention, and digital basis can be provided for determining the injury degree and range of the organism soft tissue based on the detected conductivity between different positions on the skin area, so that a doctor can determine the injury degree and range of the organism soft tissue with fixed standards, and the influence of the subjective judgment of the doctor on the result is reduced, for the same symptom, the conclusions drawn by different doctors based on the measured data should be consistent, and the accuracy of the detection result is greatly improved.
The device for detecting the injury degree and range of the body soft tissue based on the electrical impedance method is used for detecting the electrical conductivity between different positions on the skin area, and the technical problems that in the prior art, a clinician can only judge the injury degree and range according to the observation and palpation of the patient soft tissue, the subcutaneous soft tissue injury is lack of an effective means for quick detection, and the possibility of misdiagnosis and missed diagnosis exists are solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a block diagram of a preferred embodiment of the apparatus for detecting the degree and range of injury of soft tissues of a body based on an electrical impedance method;
fig. 2 is a schematic diagram of a preferred embodiment of a grid electrode plate of determined measurement points.
In the figure: 1. a conductivity meter; 11. a temperature compensation sensor; 2. a measuring electrode; 3. a connecting wire; 4. a grid electrode plate; 41. mesh openings; 5. measuring an electrode wire change-over switch; 6. a data processor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The device for detecting the degree and range of the injury of the soft tissues of the body based on the electrical impedance method is described in detail in the following with reference to the attached drawings 1 and 2 of the specification and the embodiments 1 and 2.
The conductivity is the ability of the object to conduct current, and a certain sine wave potential is applied to the two measuring electrodes 2 to measure the current flowing between the electrodes 2. According to ohm's law, the conductivity G is the inverse of the resistivity R, i.e., G1/R. The higher the conductivity value, the smaller the resistance value. The preferred technical scheme of this embodiment is based on the device of electrical impedance method detection organism soft tissue injury degree and scope, can measure the conductivity between two measuring electrodes 2 through conductivity meter 1, and the higher the conductivity, the resistance value is smaller, shows that skin injury is more serious.
Example 1
This embodiment will be described in detail with reference to fig. 1 and 2, wherein the device for detecting the degree and extent of injury of soft tissues of a body based on an electrical impedance method is provided in the invention.
The device for detecting the degree and range of the injury of the soft tissue of the body based on the electrical impedance method comprises a conductivity meter 1, at least two measuring electrodes 2, a connecting wire 3 and a grid electrode plate 4, as shown in fig. 1. The grid electrode plate 4 is of a hollow structure, a plurality of meshes 41 for placing the measuring electrodes 2 are respectively arranged on each side of the grid electrode plate 4, the measuring electrodes 2 are placed in the meshes 41 and attached to skin to be detected, the measuring electrodes 2 are connected with the conductivity meter 1 through the connecting wires 3, and the conductivity between the two measuring electrodes 2 is detected through the conductivity meter 1, as shown in fig. 1 or 2. The measuring electrode 2 is similar to a measuring electrode for electrocardiography, for example. The conductivity meter 1, which can also be said to be an impedance meter, is connected to the measuring electrode 2 and serves as a source for detecting an alternating current signal. The conductivity meter 1 is, for example, a conductivity meter type DDS-309.
Preferably, the conductivity meter 1 further has a temperature compensation sensor 11. Since the change of the environmental temperature can affect the measurement accuracy of the instrument, the influence of the temperature change on the detection result can be eliminated or reduced through temperature compensation.
The device for detecting the degree and range of the body soft tissue injury based on the electrical impedance method can measure the electrical conductivity between the two measuring electrodes 2, and can provide digital basis for determining the degree and range of the body soft tissue injury based on the measured electrical conductivity between different positions on the skin area, so that doctors have fixed standards for judging the degree and range of the body soft tissue injury, the influence of subjective judgment of the doctors on results is reduced, for the same symptoms, the conclusions obtained by different doctors based on the measuring data are consistent, and the accuracy of the detection results is greatly improved.
The device for detecting the injury degree and range of the soft tissue of the body based on the electrical impedance method is used for detecting the electrical conductivity between different positions on the skin area, so that the technical problems that in the prior art, a clinician can only judge the injury degree and range according to the soft tissue of a patient who is observed and palpated, the subcutaneous soft tissue injury is short of effective means for quick detection, and the possibility of misdiagnosis and missed diagnosis exists are solved.
As shown in fig. 2, the grid electrode plate 4 is a hollow structure, that is, the middle part of the grid electrode plate 4 is hollow (the dotted line is not included in the figure, and is supplemented in the form of dotted line for easy understanding), and only one row of mesh holes 41 are respectively arranged on each side of the grid electrode plate 4, so as to avoid that the middle part of the grid electrode plate 4 presses the wound part to cause discomfort to the patient.
According to a preferred embodiment, the number of measuring electrodes 2 is two. Two measuring electrodes 2 are placed at different meshes 41 on the grid electrode plate 4 to detect the electrical conductivity between two points on the skin.
According to a preferred embodiment, the number of the measuring electrodes 2 is N, N is an even number greater than or equal to 4, the N measuring electrodes 2 are equally divided into N/2 groups, and the device further comprises a measuring electrode line change-over switch 5, the measuring electrodes 2 are connected with the conductivity meter 1 through the measuring electrode line change-over switch 5, and the working state of each group of measuring electrodes 2 is switched through the measuring electrode line change-over switch 5.
For example, the number of the measuring electrodes 2 is four. The four measuring electrodes 2 are divided into two groups, each group comprises two measuring electrodes, one group is placed in different meshes 41 on the transverse direction of the grid electrode plate 4, and the conductivity between two points on the transverse direction of the skin is detected; another set of grid electrode plates 4 is placed in different meshes 41 in the longitudinal direction of the skin to detect the electrical conductivity between two points in the longitudinal direction of the skin. The working states of different groups of measuring electrodes 2 can be switched by the measuring electrode line change-over switch 5, so that the detection efficiency is improved.
As another example, the number of the measuring electrodes 2 is matched with the number of the meshes 41 to previously mount the measuring electrodes 2 in each of the meshes 41, as shown in FIG. 2. During measurement, the working state of each group of measuring electrodes 2 is switched by the measuring electrode line change-over switch 5, so that the measuring electrodes 2 can be prevented from being repeatedly placed in the measuring process, and the detection efficiency can be improved.
According to a preferred embodiment, the measuring electrode 2 is of a circular structure, and the diameter of the measuring electrode 2 is 6-15 mm; and a conductive paste layer is arranged on one side of the measuring electrode 2, which is attached to the skin to be detected. Preferably, the measuring electrode 2 has a diameter of 10mm and is made of stainless steel. When the measuring electrode 2 is used, a layer of conductive paste is coated on the side, attached to the skin to be detected, of the measuring electrode 2 in advance, and then the measuring electrode 2 is pressed on the skin to be detected and is tightly attached to the skin to be detected.
According to a preferred embodiment, the grid electrode plate 4 is made of a bendable material so that the grid electrode plate 4 can be placed on the skin to be detected to be attached to the skin to be detected. The bendable material is, for example, a non-toxic plastic material, such as a polyethylene material.
According to a preferred embodiment, the mesh 41 on the grid electrode plate 4 is a square structure, and the side length of the mesh 41 is equivalent to the diameter of the measuring electrode 2, so that after the measuring electrode 2 is placed in the mesh 41, the measuring electrode 2 can be fixed and the center of the measuring electrode 2 and the center of the mesh 41 coincide with each other, as shown in fig. 2. Without being limited thereto, the mesh 41 may also be of other shapes, such as circular, triangular, etc.
The preferred technical scheme of this embodiment sets up grid electrode board 4, sets up mesh 41 on grid electrode board 4, is convenient for lay measuring electrode 2 on the one hand, and on the other hand can also fix the distance between two measuring electrode 2. Specifically, the side length of the mesh 41 is equivalent to the diameter of the measuring electrode 2, so that after the measuring electrode 2 is placed in the mesh 41, the measuring electrode 2 can be fixed and the center of the measuring electrode 2 and the center of the mesh 41 coincide with each other, thereby facilitating the calculation of the distance between the two measuring electrodes 2.
According to a preferred embodiment, the distance between the centers of two adjacent meshes 41 on the grid electrode plate 4 is equal, and the distance between the centers of two adjacent meshes 41 is 0.5-2 cm. Preferably, the distance between the centers of two adjacent meshes 41 is 1 cm.
According to a preferred embodiment, the grid electrode plate 4 has a size 2-6 cm larger than the estimated wound lesion edge, as shown in fig. 2. Preferably, the grid electrode plate 4 is of a square structure, and the specification of the grid electrode plate 4 is 9-15 cm by 9-15 cm. More preferably, the grid electrode plates 4 are of a square configuration, and the grid electrode plates 4 have a gauge of one or more of 9cm x 9cm, 11cm x 11cm, 13cm x 13cm, and 15cm x 15 cm. It is understood that the shape of the grid electrode plate 4 is not limited thereto, and may be configured in an arc structure or a structure matching the body part based on the condition of the body parts. The gauge of the grid electrode plate 4 may also be set to a larger or smaller size.
According to the clinical examination, the focus position is preliminarily determined, and the grid electrode plate 4 with a proper size is selected, wherein the size of the grid electrode plate 4 in the preferred technical scheme of the embodiment is 2-6 cm larger than the estimated wound focus edge, so that the focus range and the damage degree can be accurately detected conveniently.
According to a preferred embodiment, the apparatus for detecting the degree and extent of injury to soft tissues of the body based on electrical impedance method of the present embodiment may further comprise a data processor 6, as shown in fig. 1. Preferably, the data processor 6 is connected to the conductivity meter 1, and the conductivity meter 1 transmits the detection data to the data processor 6 for data processing. The data processor 6 is, for example, a computer, a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
Example 2
This embodiment will be described in detail with reference to fig. 2 for a method of using the apparatus for detecting the degree and range of soft tissue injury of a body based on an electrical impedance method of the present invention.
The use method of the device for detecting the injury degree and range of the soft tissue of the body based on the electrical impedance method comprises the following steps:
s1: and determining the range of the estimated focus. Specifically, the focus position is found based on the local skin red swelling and hot pain symptom and/or the skin surface damage condition. More specifically, the estimated lesion range is roughly judged by using sensory examination methods such as eye observation and contact pressure based on the symptoms of local skin inflammation and fever and/or the damage condition of surface skin.
S2: a suitable grid electrode plate 4 is selected. In principle, the selected grid electrode plate 4 is 2-6 cm larger than the estimated focus edge. In practical use, an appropriate grid electrode plate 4 can be selected based on practical situations.
S3: connecting the components of the device for detecting the injury degree and range of the soft tissues of the body based on an electrical impedance method. Specifically, the measuring electrodes 2 are placed in the meshes 41 of the grid electrode plate 4, the measuring electrodes 2 are connected with the conductivity meter 1 through the connecting wires 3, and the conductivity between the two measuring electrodes 2 is detected by the conductivity meter 1.
The use method of the device for detecting the degree and range of the soft tissue injury of the body based on the electrical impedance method is described below by taking the actual measurement of the skin of the medial thigh section as an example.
A 9cm by 9cm grid electrode plate 4 was used. As shown in FIG. 2, the meshes 41 at the four corners of the grid electrode plate 4 are respectively marked as A, B, C, D, and the meshes between the transverse AB meshes are respectively marked as AB1、 AB2、AB3、AB4、AB5With the cells between transverse DC cells being respectively designated DC1、DC2、DC3、 DC4、DC5. The meshes between the vertical AD meshes are respectively marked as AD1、AD2、AD3、AD4、AD5The meshes between the vertical BC meshes are respectively marked as BC1、BC2、BC3、BC4、BC5. The distance between two adjacent meshes 41 is 1.5 cm. As can be seen, the larger the number of meshes on each side of the grid electrode plate 4 is, the larger the detection result isIs accurate.
The measurement data are shown in Table 1 below, in units of. mu.s/cm.
TABLE 1
The analysis of the detection data comprises the following processes:
(1) and (4) determining a normal tissue boundary. The resistance of the normal tissue site is related to factors such as age, sex, and weight. The resistance values of normal tissue points of people with different age stages, different sexes and different weights are different. Even if the same person, the normal resistance values of different portions may not be uniform.
The present embodiment finds the resistance value of the normal tissue point by: the two data at the transverse and longitudinal intersection points are measured to be consistent, namely the two data are regarded as normal resistance values, and the skin tissues of the part are normal and have no damage. Generally, a square or rectangular area is scribed, and the horizontal and vertical data of the point closest to the four corners are substantially the same, and the skin tissue at the area is considered normal and not damaged.
Conductivity values between AB, AD, BC and DC meshes as in table 1 were all substantially 2.15, i.e. normal tissue boundary points.
(2) And (5) analyzing the damaged tissue points. As can be seen from Table 1 above: AB1And DC1Conductivity between meshes 2.15, AD1And BC1The conductivity between the meshes was 2.15. Thus, AB1-DC1Line and AD1-BC1The conductivity at the intersection of the lines was recorded as 2.15+2.15, i.e. the longitudinal and transverse measurements were identical, where the normal tissue points.
As can be seen from Table 1 above: AB1And DC1Conductivity between meshes 2.15, AD2And BC2The conductivity between the meshes was 2.82. Thus, AB1-DC1Line and AD2-BC2The conductivity at the intersection of the lines is 2.15+2.82, i.e., the longitudinal detection data and the transverse detection data are inconsistent, and one of the data is negative data (which can be said to be normal data), which is the boundary tissue point.
As can be seen from Table 1 above: AB3And DC3Conductivity between meshes was 3.55, AD3And BC3The conductivity between the meshes was 3.45. Thus, AB3-DC3Line and AD3-BC3The conductivity at the intersection of the lines was recorded as 3.55+3.45, i.e., the longitudinal and transverse test data had no negative data (or normal data), and the point was the damaged tissue.
(3) And (5) judging the damage degree.
The method comprises the following steps: and judging according to the sum of the longitudinal detection data and the transverse detection data at the intersection point. Specifically, the larger the value of the detection data is, the larger the damage degree is, and the smaller the damage degree is. As in AB of Table 13-DC3Line and AD3-BC3The conductivity at the intersection of the lines was 3.55+ 3.45-7, where the value was greatest, indicating the greatest degree of tissue damage at this point.
The second method comprises the following steps: and judging according to the damage degree. Specifically, the longitudinal detection data and the transverse detection data of the normal point are 2.15+2.15, AB3-DC3Line and AD3-BC3The conductivity at the intersection of the lines was 3.55+ 3.45-7. The damage degree (normal point/damage point) (2.15+2.15)/(3.55+3.45) is 0.614 degrees. The degree of damage varies from 0 to 1, with 1 indicating no damage, less than 1 indicating damage, and closer to 1 indicating less damage and closer to 0 indicating greater damage.
The method can be applied to comparison of the damage degree among different individuals, the same part or different parts.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A device for detecting the injury degree and range of organism soft tissue based on an electrical impedance method is characterized by comprising an electrical conductivity meter (1), at least two measuring electrodes (2), a connecting wire (3) and a grid electrode plate (4), wherein the grid electrode plate (4) is of a hollow structure, each edge of the grid electrode plate (4) is respectively provided with a plurality of meshes (41) for placing the measuring electrodes (2), the measuring electrodes (2) are placed in the meshes (41) and are attached to skin to be detected,
the measuring electrodes (2) are connected with the conductivity meter (1) through the connecting lines (3), and the conductivity between the two measuring electrodes (2) is detected through the conductivity meter (1).
2. The apparatus for detecting the degree and extent of injury to soft tissues of the body based on electrical impedance method according to claim 1, wherein the number of the measuring electrodes (2) is two.
3. The device for detecting the injury degree and range of the soft tissues of the body based on the electrical impedance method according to claim 1, wherein the number of the measuring electrodes (2) is N, N is an even number which is more than or equal to 4, N measuring electrodes (2) are divided into N/2 groups,
the device also comprises a measuring electrode line change-over switch (5), the measuring electrodes (2) are connected with the conductivity meter (1) through the measuring electrode line change-over switch (5), and the working state of each group of measuring electrodes (2) is switched through the measuring electrode line change-over switch (5).
4. The device for detecting the injury degree and range of the soft tissues of the body based on the electrical impedance method according to claim 2 or 3, wherein the measuring electrode (2) is of a circular structure, and the diameter of the measuring electrode (2) is 6-15 mm; and a conductive paste layer is arranged on one side of the measuring electrode (2) which is attached to the skin to be detected.
5. The device for detecting the degree and range of injury to soft tissues of the body based on the electrical impedance method of claim 1, wherein the grid electrode plate (4) is made of a bendable material so that the grid electrode plate (4) can be attached to the skin to be detected when being placed on the skin to be detected.
6. The device for detecting the degree and range of injury to soft tissues of the body based on electrical impedance method of claim 1, wherein the meshes (41) on the grid electrode plate (4) are square structure, and
the side length of the mesh (41) corresponds to the diameter of the measuring electrode (2), so that after the measuring electrode (2) is placed in the mesh (41), the measuring electrode (2) can be fixed and the center of the measuring electrode (2) and the center of the mesh (41) coincide with each other.
7. The device for detecting the injury degree and range of the soft tissues of the body based on the electrical impedance method as claimed in claim 6, wherein the distance between the centers of two adjacent meshes (41) on the grid electrode plate (4) is equal, and the distance between the centers of two adjacent meshes (41) is 0.5-2 cm.
8. The device for detecting the degree and range of injury to soft tissues of the body based on the electrical impedance method according to claim 1, wherein the size of the grid electrode plate (4) is 2-6 cm larger than the estimated wound focus edge.
9. The device for detecting the injury degree and range of the soft tissues of the body based on the electrical impedance method according to claim 8, wherein the grid electrode plate (4) is of a square structure, and the specification of the grid electrode plate (4) is 9-15 cm by 9-15 cm.
10. The device for detecting the injury degree and range of the soft tissues of the body based on the electrical impedance method as claimed in claim 1, further comprising a data processor (6), wherein the data processor (6) is connected with the conductivity meter (1), and the conductivity meter (1) transmits the detected data to the data processor (6) so as to analyze and process the data detected by the conductivity meter (1) through the data processor (6).
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