Electrode substrate and monitoring electrode

Abstract

The present invention relates to the field of medical devices, and more particularly, to an electrode substrate and a monitoring electrode. The electrode substrate includes a substrate body, and a blood-containing space is provided on the substrate body, and the blood-containing space can absorb the blood when the monitored part bleeds. The monitoring electrode includes an electrode piece, an electrode wire and an electrode substrate; the electrode piece is arranged on the electrode substrate, one end of the electrode wire is connected to the electrode piece, and the other end of the electrode wire is used for connecting a monitoring device. In the present invention, a blood-containing space is provided on the substrate body, which can absorb the bleeding through the blood-containing space when the human tissue bleeds or when the blood vessel ruptures and causes bleeding. Furthermore, it can be determined in a timely manner whether there is bleeding between tissues according to whether the blood-containing space has absorbed blood, and corresponding operations can be carried out in a timely manner, reducing the probability of complications and secondary surgeries.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and more particularly, to an electrode substrate and a monitoring electrode. Background Art

[0002] In some operations involving the central nervous system, such as brain tumor resection, electroencephalogram monitoring, spinal tumor resection, and scoliosis correction, there is a risk of nerve function damage. Once damaged, it will cause serious complications to the patient. And intraoperative neurophysiological monitoring can enable the surgeon to clarify whether the ongoing operation has caused nerve damage; it can timely detect and correct the damage caused by the operation to avoid permanent damage. Therefore, effective intraoperative nerve monitoring is very necessary.

[0003] Currently, strip electrodes are widely used in intraoperative neurophysiological monitoring. Specifically, during the intraoperative use, such as in spinal surgery, first, the spine and the dura mater inside the spine need to be opened, and the monitoring electrode is pushed into the gap between the dura mater and the nerve and attached to the nerve for monitoring. When performing intracranial nerve monitoring, it is necessary to make a positioning incision on the head to reach the periosteum, drill a cranial hole, incise the dura mater, and slowly push the electrode into the intracranial dura mater to the predetermined area and closely attach it to the nerve. A small piece of sponge is covered at the drilling site, the scalp is sutured layer by layer, and the wire is led out from the incision for subsequent monitoring.

[0004] Since the electrode needs to be pushed into the tissue gap during use, it will exert pressure on the surrounding tissues and may cause bleeding. If such bleeding cannot be detected in time during the operation, on the one hand, it will affect the monitoring, and on the other hand, the bleeding usually causes serious complications to the patient, and in some cases, a special secondary operation is required to correct it. Summary of the Invention

[0005] The purpose of the present invention is to provide an electrode substrate and a monitoring electrode, which can timely judge whether there is bleeding between tissues and the amount of bleeding according to the blood volume in the blood storage space, and then can perform corresponding operations in time, reducing the probability of complications and secondary operations.

[0006] The technical solution of the present invention is as follows:

[0007] An electrode substrate includes a substrate main body, and a blood storage space is provided on the substrate main body or a part of the substrate main body, and the blood storage space can absorb the blood when the monitored part bleeds.

[0008] Preferably, the material of the substrate main body or a part of the substrate main body is a porous material, and the blood storage space is the capillary pores of the porous material.

[0009] Preferably, the blood storage space is a blood guiding hole or a blood guiding groove.

[0010] Preferably, when the blood-containing space is a blood-conducting hole, the blood-conducting hole penetrates through the base body;

[0011] When the blood-containing space is a blood-conducting groove, the length direction of the blood-conducting groove extends along the surface of the base body.

[0012] Preferably, when the blood-containing space is a blood-conducting hole, the blood-conducting hole includes at least one of a straight hole, a tapered hole, a stepped hole or an irregular hole;

[0013] When the blood-containing space is a blood-conducting groove, the blood-conducting groove includes at least one of a linear groove, a reticular groove, a leaf-shaped groove or an irregular groove.

[0014] Preferably, the material of the base body includes at least one of a translucent material, a transparent material or a white material.

[0015] Preferably, a reactant is provided in the blood-containing space, and the reactant can perform a chemical or physical reaction with blood to prominently display trace blood, and can be directly and easily observed visually.

[0016] Preferably, the reactant is luminol.

[0017] Preferably, an electrode installation area and a blood observation area are provided on the base body. The electrode installation area and the blood observation area are both provided with blood-containing spaces, and the blood-containing spaces in the electrode installation area and the blood observation area are communicated.

[0018] The present invention also provides a monitoring electrode, which includes an electrode piece, an electrode wire and the electrode base according to any one of the above;

[0019] The electrode piece is arranged on the electrode base, one end of the electrode wire is connected to the electrode piece, and the other end of the electrode wire is used for connecting a monitoring device.

[0020] The beneficial effects of the present invention are:

[0021] A blood-containing space is provided on the base body, which can absorb bleeding through the blood-containing space in the case of bleeding in human tissues or bleeding caused by blood vessel rupture. Furthermore, it is possible to timely judge whether there is bleeding between tissues according to whether the blood-containing space has absorbed blood, and then corresponding operations can be carried out in a timely manner, reducing the probability of complications and secondary surgeries. Description of the Drawings

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following accompanying drawings only show certain embodiments of the present invention, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related accompanying drawings can also be obtained based on these drawings.

[0023] Figure 1 Structural schematic diagram of the first monitoring electrode provided by the embodiment of the present invention;

[0024] Figure 2 Structural schematic diagram of the second monitoring electrode provided by the embodiment of the present invention;

[0025] Figure 3 Cross-sectional schematic diagram of the third monitoring electrode provided by the embodiment of the present invention;

[0026] Figure 4 Structural schematic diagram of the fourth monitoring electrode provided by the embodiment of the present invention;

[0027] Figure 5 Structural schematic diagram of the electrode sheet of the monitoring electrode provided by the embodiment of the present invention.

[0028] In the figure:

[0029] 1: Substrate main body; 2: Electrode sheet; 3: Electrode lead wire; 4: Blood observation area; 5: Catheter; 6: Blood guiding hole; 7: Blood guiding groove; 8: Monitoring part; 9: Installation part; 10: Electrode installation area. Detailed implementation manners

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Usually, the components of the embodiments of the present invention described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0032] It should be noted that: Similar reference numerals and letters represent similar items in the following accompanying drawings. Therefore, once an item is defined in one accompanying drawing, it does not need to be further defined and explained in the subsequent accompanying drawings.

[0033] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is customarily placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0034] In addition, terms such as "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0035] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0036] The following Figures 1 - 5 will be used to elaborate in detail some embodiments of the present invention. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0037] An electrode substrate includes a substrate main body 1, and a blood-containing space is provided on the substrate main body 1 or a part of the substrate main body 1, and the blood-containing space can suck the blood when the monitored part bleeds.

[0038] Specifically, in this embodiment, the material of the substrate main body 1 can be polyurethane, polytetrafluoroethylene, hydrogel, silica gel, etc. The size of the substrate main body 1 can have a width of 4 - 12 mm, and the optimal choice is 7 mm, and the thickness can be 0.5 - 1.2 mm, and the optimal choice is 0.7 mm.

[0039] Specifically, in this embodiment, the substrate main body 1 has good flexibility and will deform when it is squeezed, so it will not cause great extrusion to human tissues, reducing the probability of human tissue bleeding, thereby improving the accuracy of the monitoring results of the monitoring electrode, reducing the probability of patients having complications, and reducing the probability of secondary surgery.

[0040] Specifically, in this embodiment, a blood storage space is provided on the base body 1. By providing the blood storage space, when the monitoring electrode enters the tissue interior, if there is bleeding in the tissue interior, the blood will be stored by the blood storage space. Since the blood storage space stores blood, the base body 1 will change color. Thus, it is possible to timely determine whether there is bleeding in the tissue interior according to the color change of the base body 1, and when there is bleeding, it is possible to timely determine the amount of bleeding and take timely countermeasures.

[0041] Or after the monitoring electrode is removed, the amount of bleeding in the tissue interior can be judged according to the blood storage amount in the blood storage space, various emergencies can be timely handled, complications caused by subsequent ignorance can be avoided, and the probability of secondary surgery can be reduced.

[0042] More specifically, in this embodiment, the base body 1 may be entirely provided with a blood storage space, or only the part extending into the human tissue interior may have a blood storage space, as long as it can absorb the blood when there is bleeding in the human tissue interior, thus facilitating further judgment by the doctor.

[0043] Preferably, the material of the base body 1 is a porous material, and the blood storage space is the capillary pores of the porous material.

[0044] The material of the base body 1 has a certain flexibility, but it cannot completely avoid causing bleeding.

[0045] In this embodiment, the material used for the base body 1 is a porous material. A porous material is a material composed of a network structure of interconnected or closed pores. Porous materials have good permeability and adsorption properties.

[0046] Specifically, the entire base body 1 may be made of a porous material, or only the part extending into the human tissue may be made of a porous material, as long as it can ensure the blood absorption function, thus facilitating further judgment by the doctor.

[0047] In this embodiment, by utilizing the adsorption effect of the porous material on the outside world, the pore structure of the porous material is used as the blood storage space. Thus, when bleeding occurs in the tissue, the blood will be absorbed by the pore structure in the base body 1. Therefore, during the monitoring process or after the monitoring electrode is removed, whether there is bleeding can be judged according to the blood absorption situation on the base body 1, and when there is bleeding, the amount of bleeding can be judged.

[0048] At this time, after the monitoring electrode operation, the human tissue can be timely processed, the possibility of complications is reduced, and the occurrence of secondary surgery is also reduced.

[0049] In another embodiment of the present invention, the blood storage space is the blood guiding hole 6 or the blood guiding groove 7.

[0050] In this embodiment, when the base body 1 is a porous material, in addition to the osmotic action of the blood itself, the absorption of the blood can also be achieved by capillary force.

[0051] In order to ensure that the base body 1 can absorb the blood exuded from human tissues and observe and judge the bleeding condition of human tissues, the blood guiding hole 6 or the blood guiding groove 7 is provided on the base body 1. Through the setting of the blood guiding hole 6 or the blood guiding groove 7, the absorption of the blood is achieved, and thus it is convenient for timely observation or subsequent observation.

[0052] In this embodiment, when the blood storage space is the blood guiding hole 6, the blood guiding hole 6 penetrates through the base body 1.

[0053] Specifically, the way that the blood guiding hole 6 penetrates through the base body 1 can be along the moving direction of the electrode base, or in other directions, or it can also be in a curved form, an irregular shape, etc., and they can be interconnected to form a network channel, as long as it can achieve collecting the blood exuded from human tissues through the blood guiding hole 6.

[0054] In this embodiment, the shape of the blood guiding hole 6 can be various, for example, it can include at least one of a straight hole, a tapered hole, a stepped hole or an irregular hole.

[0055] In this embodiment, the blood guiding hole 6 is arranged to penetrate through the base body 1. The penetration method can be that both ends of the blood guiding hole 6 penetrate through the upper and lower sides of the base body 1, or the left and right side surfaces, or penetrate through adjacent side surfaces, and even both ends of the blood guiding hole 6 can be on the same side surface. That is to say, the blood guiding hole 6 can be a straight hole, or it can also be an arc-shaped hole or other shaped hole structures, as long as it can have the blood storage function and can judge the bleeding condition in the tissue according to the blood storage condition.

[0056] That is to say, the type, quantity, etc. of the blood guiding hole 6 are not unique, and they can be specifically set according to actual requirements, as long as it can meet the requirement of collecting the blood extended from human tissues through the blood guiding hole 6.

[0057] Multiple blood guiding holes 6 can be set to be parallel to each other for the convenience of processing.

[0058] It should be noted that the axes of the blood guiding holes 6 can be set to be parallel to each other, but it is not limited to parallel setting only. They can also be non-parallel settings, as long as through the setting of the blood guiding holes 6, the base body 1 has a certain adsorption function, and further makes the base body 1 have the blood absorption effect.

[0059] In this embodiment, when the blood-containing space is the blood guiding groove 7, the length direction of the blood guiding groove 7 extends along the surface of the base body.

[0060] That is to say, the blood guiding groove 7 can be arranged on any surface of the base body 1. Through the arrangement of the blood guiding groove 7, a small amount of blood can be absorbed to facilitate timely judgment, or to facilitate subsequent judgment after the base body 1 is taken out.

[0061] Preferably, as Figure 4 shown, the blood-containing space arranged on the base body 1 is the blood guiding groove 7, and the blood guiding groove 7 extends along the surface of the base body.

[0062] Specifically, when the blood guiding groove 7 is arranged on the upper surface or the lower surface of the base body 1, the extending direction of the blood guiding groove 7 can be along the length direction of the base body 1, or along the width direction of the base body 1, or other directions, as long as the extending direction is parallel to the side surface where it is located. When the blood guiding groove 7 is arranged on other surfaces of the base body 1, as long as the extending direction is parallel to the surface where it is located.

[0063] Such an arrangement can store a certain amount of blood through the blood guiding groove 7. When bleeding occurs between tissues, at least part of the blood will enter the blood guiding groove 7. Then, when monitoring the inside of the tissue, or after the monitoring electrode is taken out from between the tissues, the bleeding condition can be judged according to the blood storage amount in the blood guiding groove 7, and the next operation can be carried out according to the bleeding condition.

[0064] In a preferred embodiment, the blood guiding groove 7 and the electrode sheet 2 are respectively arranged on opposite sides of the base body 1.

[0065] Specifically, in this embodiment, the blood guiding groove 7 is arranged in two, and is respectively arranged on the lower side surface of the base body 1, and is close to the left and right ends.

[0066] More specifically, in this embodiment, the two blood guiding grooves 7 are parallel to each other, and the cross section of the blood guiding groove 7 is semi-circular.

[0067] In this embodiment, the electrode sheet 2 is arranged between the two blood guiding grooves 7, and the electrode sheet 2 and the blood guiding groove 7 are respectively arranged on the upper and lower sides of the base body 1.

[0068] During use, the blood guiding groove 7 can guide the blood stained on the lower side surface of the base body 1 to the outer end, and then the bleeding condition can be observed during the use process, and the entry of the monitoring electrode can be stopped in time, reducing the occurrence of complications and secondary surgeries.

[0069] Or, when the blood guiding groove 7 has no blood guiding function, it can store a small amount of blood. Then, when the monitoring electrode is taken out, it can be judged whether there is bleeding in the human tissue according to the blood storage condition, or the blood volume can be judged according to the blood color.

[0070] When the blood color is lighter, the amount of bleeding is less, and when the blood color is darker, the amount of bleeding is more.

[0071] In this embodiment, the base body 1 can be a porous material or an ordinary material.

[0072] It should be noted that, in this embodiment, the cross-section of the blood guiding groove 7 is semi-circular, but it is not limited to semi-circular, and it can also be other shapes, such as rectangular, triangular, etc. As long as the blood guiding groove 7 is provided, the blood adsorbed on the surface of the base body 1 can be led out to the outside for direct observation.

[0073] It should also be noted that, in this embodiment, the number of the blood guiding grooves 7 is two, but it is not limited to two, and it can also be one or more.

[0074] It should also be noted that, in this embodiment, the blood guiding groove 7 and the electrode sheet 2 are respectively arranged on opposite sides of the base body 1, and they can also be arranged on the same side.

[0075] In this embodiment, the blood guiding groove 7 includes at least one of a linear groove, a mesh groove, a leaf-shaped groove or an irregular groove.

[0076] It should be noted that, in this embodiment, the shape of the blood guiding groove 7 is a linear groove, a mesh groove, a leaf-shaped groove or other regular grooves, or an irregular groove, but it is not limited to the above several shapes. As long as it can lead the blood out to the outside when the human tissue bleeds for direct observation.

[0077] Preferably, the material of the base body 1 includes at least one of a semi-transparent material, a transparent material or a white material.

[0078] When the base body 1 is a transparent or semi-transparent material, or its color is white, there will be a large parallax between the base body 1 and the red color of the blood, so that the state of the blood can be easily observed, which is convenient for judging the amount of bleeding, and the most appropriate treatment method can be selected according to this result to avoid the patient being injured or undergoing a second operation due to bleeding caused by electrode placement.

[0079] It should be noted that the base body 1 can also be made of other colored materials, as long as there is a large parallax with red for easy observation of the blood.

[0080] Preferably, a reactant is provided in the blood storage space. The reactant can react chemically or physically with the blood for highlighting trace amounts of blood, and can be directly and easily observed visually to enhance blood display.

[0081] That is to say, when the color of the material of the base body 1 is not significantly different from the color of blood, or when the amount of blood is small and difficult to judge, chemical means can be used to change or enhance the color of the blood so that it can form a distinct contrast with the color of the base body, thereby facilitating observation.

[0082] Preferably, in this embodiment, the reactant is luminol.

[0083] Luminol, also known as luminol. It is a yellow crystal or beige powder at room temperature and is a relatively stable synthetic organic compound. Its chemical formula is C8H7N3O2, and its structural formula is shown in the right figure. The solution is strongly acidic and has certain irritating effects on the eyes, skin, and respiratory tract. The luminol reagent we often mention is a mixture of luminol and hydrogen peroxide, mainly used for blood detection in modern criminal investigation.

[0084] Hemoglobin contains iron, and iron can catalyze the decomposition of hydrogen peroxide, turning hydrogen peroxide into water and singlet oxygen, and singlet oxygen then oxidizes luminol to make it glow. When testing for blood stains, luminol reacts with heme (a protein responsible for transporting oxygen in hemoglobin), showing a blue-green fluorescence. This detection method is extremely sensitive and can detect blood with a content of only one in a million. Even if a drop of blood is dropped into a large vat of water, it can be detected.

[0085] It should be noted that in this embodiment, the reactant used is luminol, but it is not limited to luminol. As long as it can react with blood to make the blood easier to observe.

[0086] Preferably, an electrode installation area 10 and a blood observation area 4 are provided on the base body. Both the electrode installation area 10 and the blood observation area 4 are provided with blood-containing spaces, and the blood-containing spaces of the electrode installation area 10 and the blood observation area 4 are connected. During use, the electrode installation area 10 penetrates into the tissue 10 and cannot be directly observed, while the blood observation area 4 is not blocked by the tissue and can be directly observed to show in real time whether there is bleeding in the invisible tissue. To save materials, the blood observation area 4 can have a significantly reduced width.

[0087] In this embodiment, in order to facilitate the observation of the blood adsorption situation of the base body 1, the length of the base body 1 is lengthened. One part serves as the electrode installation area 10 for installing the electrode sheet 2, and the other part serves as the blood observation area 4. When the electrode installation area 10 with the electrode sheet 2 installed enters the human tissue, electrophysiological monitoring of the human nerve can be carried out, and the blood observation area 4 will not enter the human tissue. Thus, when bleeding occurs in the human tissue, through the adsorption function of the base body 1, the blood can be adsorbed into the blood storage space, and then the blood can be observed in the blood observation area 4 outside the human tissue, so that it can be directly seen whether the human tissue is bleeding. When the amount of bleeding is large, the monitoring electrode can be taken out in time to ensure the safety of the monitored person.

[0088] The present invention also provides a monitoring electrode, which includes an electrode sheet 2, an electrode lead wire 3, and the electrode base of any one of the above; the electrode sheet 2 is arranged on the electrode base, one end of the electrode lead wire 3 is connected to the electrode sheet 2, and the other end of the electrode lead wire 3 is used to connect to a monitoring device.

[0089] In an embodiment of the present invention, the electrode sheet 2 is installed on the base body 1, and data signals or electrical signals are transmitted through the electrode lead wire 3.

[0090] Specifically, in this embodiment, the electrode sheet 2 is embedded in the base body 1.

[0091] As Figure 5 shown, the electrode sheet 2 includes a monitoring part 8 and a mounting part 9. The monitoring part 8 is annular, the mounting part 9 is cylindrical, and a groove is provided at one end of the mounting part 9. The monitoring part 8 is arranged at the end of the mounting part 9 with the groove, and the outer wall of the mounting part 9 is connected to the inner wall of the monitoring part 8 to form an integral body.

[0092] Specifically, in this embodiment, the material of the electrode sheet 2 can be stainless steel, platinum-iridium alloy, pure platinum, pure gold, carbon fiber, and the optimal choice is stainless steel or platinum-iridium alloy. The outer diameter size of the monitoring part 8 of the electrode sheet 2 can be 1.5 mm - 6 mm, and the optimal choice is 2.5 mm. The electrode point spacing can be 5 mm - 15 mm, and the optimal choice is 10 mm.

[0093] It should be noted that in this embodiment, the material of the electrode sheet 2 can be the above several types, but it is not limited to only the above several materials, as long as it can achieve the electrophysiological monitoring function.

[0094] It should also be noted that the materials of the monitoring part 8 and the mounting part 9 of the electrode sheet 2 can be the same or different.

[0095] Specifically, the monitoring part 8 and the mounting part 9 are integrally arranged.

[0096] In this embodiment, the number of electrode plates 2 is multiple, and the number of electrode guide wires 3 is multiple. The electrode plates 2 and the electrode guide wires 3 are arranged in one-to-one correspondence.

[0097] Specifically, one electrode guide wire 3 is arranged on each electrode plate 2, so that each electrode plate 2 is independent of each other and can monitor different positions.

[0098] Specifically, in this embodiment, the materials of the multiple electrode plates 2 can be the same, or different materials can be selected for each electrode plate 2 according to different positions.

[0099] Specifically, in this embodiment, a catheter 5 is sleeved on the outer wall of the part of the electrode guide wire 3 extending outside the base body 1.

[0100] Through the arrangement of the catheter 5, a certain protective function can be achieved for the electrode guide wire 3.

[0101] Specifically, in this embodiment, the material of the catheter 5 is silicone, and one end of it is connected to the base body 1.

[0102] More specifically, the connection mode between the catheter 5 and the base body 1 can be abutting or integrally arranged.

[0103] As can be seen from the above, in the monitoring electrode provided in the present invention, the material embedded around the electrode plate 2 is the base body 1 with blood-sucking characteristics. The material of the base body 1 is a porous material, or has a capillary structure or a groove structure. In this way, during the implantation of the monitoring electrode, if there is bleeding, the blood will fill the capillary structure or the porous material base body 1 in the first time. Even the groove structure may guide the blood to the rear of the base body 1 during the operation, enabling the doctor to detect the bleeding condition earlier, stop the electrode implantation in time, and prevent more serious injuries. After the electrophysiological monitoring is completed and the monitoring electrode is removed, the doctor can judge the bleeding situation according to the blood remaining on the base body 1.

[0104] The monitoring electrode provided by the present invention can be applied to the monitoring of the central nervous system (spinal nerves, cerebral cortex nerves). During the electrophysiological monitoring of spinal surgery, after the spine and dura mater are incised and the surgical part needs to be operated on, before the electrode is pushed in, the exposed side of the electrode plate 2 faces the spine, and the electrode part is pushed into the spinal dura mater so that the electrode plate 2 fits against the nerves inside the dura mater.

[0105] The monitoring electrode provided by the present invention can also be applied to the intraoperative physiological monitoring of the cerebral cortex. During the electrophysiological monitoring of the cerebral cortex, a hole can be drilled in the skull to break through the dura mater and expose the nerves. Before the electrode is pushed in, the exposed side of the electrode point faces the cerebral cortex, and it is slowly pushed into the dura mater along the dura mater gap so that the cerebral cortex nerves fit tightly against the electrode point.

[0106] If a bleeding problem occurs during monitoring, the porous structure of the base body 1 will adsorb the blood in the pores of the porous structure. During the monitoring process or after the monitoring electrode is removed, the doctor can visually observe the blood color on the base body 1 to judge the bleeding situation and perform hemostasis in a timely manner.

[0107] Preferably, one end of the electrode wire 3 connected to the electrode plate 2 is arranged inside the base body 1.

[0108] Specifically, one end of the electrode wire 3 is connected to the embedded part of the electrode plate 2, and the other end passes through the inside of the base body 1 and then is connected to the monitoring device.

[0109] The beneficial effects of the present invention are as follows:

[0110] A blood storage space is provided on the base body 1, which can absorb the bleeding through the blood storage space in case of bleeding in human tissues or bleeding caused by blood vessel rupture. Furthermore, it can be determined in a timely manner whether there is bleeding between tissues based on whether the blood storage space has absorbed blood, and corresponding operations can be performed in a timely manner, reducing the probability of complications and secondary surgeries.

[0111] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An electrode substrate, characterized in that, It includes a base body, and a blood-receiving space is provided on the base body or a part of the base body. The blood-receiving space can absorb blood when the monitored part bleeds. An electrode mounting area and a blood observation area are provided on the base body. The blood-receiving space is provided in both the electrode mounting area and the blood observation area, and the blood-receiving spaces in the electrode mounting area and the blood observation area are communicated with each other. When the electrode mounting area with the electrode piece is inserted into the human tissue, electrophysiological monitoring of the human nerve is carried out. The blood observation area does not enter the human tissue. Thus, when bleeding occurs in the human tissue, through the adsorption function of the base body, the blood can be adsorbed into the blood-receiving space, and then the blood can be observed in the blood observation area outside the human tissue.

2. The electrode substrate according to claim 1, characterized in that The material of the base body or a part of the base body is a porous material, and the blood-receiving space is the capillary pores of the porous material.

3. The electrode substrate according to claim 1, wherein The blood-receiving space is a blood guide hole or a blood guide groove.

4. The electrode substrate according to claim 3, characterized in that When the blood-receiving space is a blood guide hole, the blood guide hole penetrates through the base body. When the blood-receiving space is a blood guide groove, the length direction of the blood guide groove extends along the surface of the base body.

5. The electrode substrate according to claim 3, wherein When the blood-receiving space is a blood guide hole, the blood guide hole includes at least one of a straight hole, a tapered hole, a stepped hole or an irregular hole. When the blood-receiving space is a blood guide groove, the blood guide groove includes at least one of a linear groove, a reticular groove, a leaf-shaped groove or an irregular groove.

6. The electrode substrate according to claim 1, characterized in that, The material of the base body includes at least one of a translucent material, a transparent material or a white material.

7. The electrode substrate according to claim 1, characterized in that, A reactant is provided in the blood-receiving space. The reactant can carry out a chemical or physical reaction with blood for highlighting trace blood, and can be directly and easily observed by visual inspection.

8. The electrode substrate according to claim 7, wherein, The reactant is luminol.

9. A monitoring electrode, characterized in that, It includes an electrode piece, an electrode lead wire and the electrode base according to any one of claims 1-8. The electrode piece is arranged on the electrode base. One end of the electrode lead wire is connected to the electrode piece, and the other end of the electrode lead wire is used for connecting a monitoring device.

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