Double-plug disposable electroencephalogram sensor adaptive to BIS and entropy index
The dual-head EEG sensor addresses the limitations of existing sensors by enabling simultaneous BIS and entropy index monitoring with broad compatibility and single-use design, enhancing clinical efficiency and reducing infection risk.
Patent Information
- Application Number
- CN202521027467.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-23
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2035-05-23
AI Technical Summary
Existing EEG sensors cannot be adapted to BIS and entropy index monitoring at the same time, resulting in cumbersome operation, insufficient data accuracy, and risk of cross-infection.
Design a dual-plug disposable EEG sensor that is adapted to BIS and entropy index. It has a built-in BIS connection plug and entropy index connection plug. It is compatible with monitoring equipment of multiple brands and models. It uses flexible circuit boards and silver-silver chloride conductive circuits, and integrates a signal processing chip for simultaneous monitoring.
It improves the compatibility and monitoring efficiency of sensor use, reduces the cost of medical equipment, avoids the risk of cross-infection, and ensures the accuracy and safety of monitoring data.
Smart Images
Figure CN223095544U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bioelectrical signal detection devices, and particularly relates to a dual-plug disposable electroencephalogram sensor adapted to BIS and entropy index. Background Technique
[0002] An electroencephalogram sensor is a precision device that can capture and interpret the electrical signals of the human brain. The working principle of the electroencephalogram sensor is based on the weak electrical signals generated during the activities of brain neurons. These signals are transmitted through the scalp and skull to form an electric field, which is captured by the electrodes on the sensor and converted into digital signals. This process includes signal acquisition, amplification, filtering, analog-to-digital conversion, and subsequent data processing and analysis. Advanced signal processing techniques can effectively remove noise and interference, extract valuable electroencephalogram information, and then analyze and interpret it through software, and finally present it as an intuitive graph or data report.
[0003] In the medical field, electroencephalogram monitoring is of irreplaceable importance for evaluating the brain function status of patients, especially in anesthesia monitoring. As key electroencephalogram monitoring parameters, the bispectral index (BIS) and entropy index can provide medical staff with important information about the anesthesia depth, consciousness state, etc. of patients, thereby ensuring the safe progress of surgery and the postoperative recovery of patients.
[0004] Currently, there are various electroencephalogram sensors on the market, but they can only be adapted to a single electroencephalogram monitoring parameter system. Such sensors have obvious limitations in practical applications. On the one hand, in complex medical scenarios where it is necessary to simultaneously monitor BIS and entropy index, medical staff have to frequently replace different types of sensors, which not only greatly increases the complexity of the operation, prolongs the preparation time, but also may lead to errors or interruptions in monitoring data due to improper operation, posing a potential threat to the safety of patients.
[0005] On the other hand, from the perspective of signal acquisition, most existing electroencephalogram sensors adopt a single-plug design. A single plug means that the sensor can only collect electrical signals from a limited area of the brain and cannot comprehensively cover the key functional areas of the brain. The electrical activities in different regions of the brain are crucial for accurately evaluating BIS and entropy index. The single-plug design results in one-sided collected data, greatly reducing the accuracy of BIS and entropy index calculated based on these data and making it difficult to truly reflect the overall function status of the patient's brain.
[0006] Furthermore, there is a widespread risk of cross-infection in the clinical practice of reusable EEG sensors. The structure of traditional EEG sensors is complex, and it is difficult to thoroughly complete the cleaning and disinfection work after use. Residual microorganisms are likely to cause cross-infection among patients during subsequent use. Moreover, as the number of uses increases, the performance of EEG sensors gradually deteriorates, the sensitivity of electrodes decreases, and the stability of signal transmission becomes worse, further affecting the reliability of BIS and entropy index monitoring.
[0007] Although disposable EEG sensors have emerged, most of them perform poorly in terms of function integration. They can often only meet the basic requirements for EEG signal acquisition, cannot be simultaneously adapted to BIS and entropy index monitoring systems, and cannot fully utilize the advantages of disposable products in improving medical efficiency and reducing the risk of infection.
[0008] In summary, the existing EEG sensors have many problems in aspects such as adapting to BIS and entropy index monitoring, comprehensiveness of signal acquisition, risk of cross-infection, and function integration. There is an urgent need for an EEG sensor with an innovative design to solve these problems in order to meet the growing demand for precision medicine. Summary of the Utility Model
[0009] To solve the problems in the prior art, the present utility model provides a dual-plug disposable EEG sensor adapted to BIS and entropy index. By providing a BIS connection plug and an entropy index connection plug that cooperate with each other in the disposable EEG sensor, it can achieve that one disposable EEG sensor can simultaneously adapt to the acquisition and monitoring of BIS and entropy index, be compatible with BIS modules and entropy index module monitoring devices of various brands and models, have wide applicability, be convenient to use on different devices, and greatly improve the use compatibility of the disposable EEG sensor; when medical staff need to interchange the monitoring requirements for BIS and entropy index, they can directly connect to the BIS connection plug or the entropy index connection plug without having to replace the sensor again, greatly reducing the cost of medical equipment and also improving clinical efficiency, and solving the problem that disposable EEG sensors in the prior art do not have the function of simultaneously monitoring BIS and entropy index.
[0010] A disposable electroencephalogram sensor with dual plugs adapted to BIS and entropy index provided by the present utility model includes an electroencephalogram sensor body, a BIS connection plug, and an entropy index connection plug. The electroencephalogram sensor body is fixedly electrically connected to the BIS connection plug and the entropy index connection plug respectively. The BIS connection plug can be communicatively connected to an external electronic device with a BIS monitoring module, and the entropy index connection plug can be communicatively connected to an external electronic device with an entropy index monitoring module. A BIS signal processing chip is provided in the BIS connection plug, and an entropy index signal processing chip is provided in the entropy index connection plug. The BIS connection plug can receive and process the BIS signal collected by the electroencephalogram sensor body and transmit it to an external electronic device with a BIS monitoring module, and the entropy index connection plug can receive and process the entropy index signal collected by the electroencephalogram sensor body and transmit it to an external electronic device with an entropy index monitoring module. Among them, BIS refers to the bispectral index of electroencephalogram.
[0011] For further improvement of the present utility model, the electroencephalogram sensor body includes a conductive electrode assembly, a polyester photosensitive layer, and a conductive circuit. The conductive electrode assembly is fixedly electrically connected to the BIS connection plug and the entropy index connection plug respectively through the conductive circuit. The polyester photosensitive layer is disposed to surround and cover the conductive electrode assembly and the conductive circuit.
[0012] For further improvement of the present utility model, the conductive electrode assembly includes a first electrode piece, a second electrode piece, a third electrode piece, and a fourth electrode piece. The BIS connection plug is electrically connected to the first electrode piece, the second electrode piece, the third electrode piece, and the fourth electrode piece in sequence through the conductive circuit, and the entropy index connection plug is electrically connected to the first electrode piece, the third electrode piece, and the fourth electrode piece in sequence through the conductive circuit.
[0013] For further improvement of the present utility model, the model of the BIS signal processing chip is STC32F12K59.
[0014] For further improvement of the present utility model, the model of the entropy index signal processing chip is STC90C51RD.
[0015] For further improvement of the present utility model, the manufacturing material of the conductive circuit is silver - silver chloride.
[0016] For further improvement of the present utility model, the manufacturing materials of the electroencephalogram sensor body, the BIS connection plug, and the entropy index connection plug are flexible printed circuit boards, and the overall shape of the electroencephalogram sensor body is flat and long strip - shaped.
[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model provides a dual-plug disposable electroencephalogram sensor adapted to BIS and entropy index. By arranging a mutually cooperating BIS connection plug and an entropy index connection plug in the disposable electroencephalogram sensor, it can realize that one disposable electroencephalogram sensor can be adapted to the acquisition and monitoring of BIS and entropy index at the same time, be compatible with BIS modules and entropy index module monitoring devices of various brands and models, have wide applicability, be convenient to use on different devices, and greatly improve the use compatibility of the disposable electroencephalogram sensor; when medical staff need to interchange the monitoring requirements for BIS and entropy index, they can directly connect to the BIS connection plug or the entropy index connection plug without having to replace the sensor again, which greatly reduces the cost of medical equipment and also improves clinical efficiency, and solves the problem that the disposable electroencephalogram sensor in the prior art does not have the function of simultaneously monitoring BIS and entropy index. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the solutions in the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0019] Figure 1 It is a structural diagram of the dual-plug disposable electroencephalogram sensor adapted to BIS and entropy index of the present utility model.
[0020] In the figure, 1 - electroencephalogram sensor main body, 2 - BIS connection plug, 3 - entropy index connection plug, 4 - conductive electrode assembly, 41 - first electrode piece, 42 - second electrode piece, 43 - third electrode piece, 44 - fourth electrode piece, 5 - conductive line. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art belonging to the technical field of the present application; the terms used in the description of the embodiments of the present application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" and any variations thereof in the description and claims of the present application and the above description of the drawings are intended to cover non-exclusive inclusion.
[0022] References to "embodiments" in this disclosure mean that particular features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive of other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.
[0023] To enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.
[0024] As Figure 1As shown in the figure, a disposable electroencephalogram sensor with a dual plug adapted to BIS and entropy index provided by the present utility model includes an electroencephalogram sensor main body 1, a BIS connection plug 2, and an entropy index connection plug 3. The electroencephalogram sensor main body 1 is fixedly electrically connected to the BIS connection plug 2 and the entropy index connection plug 3 respectively. The BIS connection plug 2 can be communicatively connected to an external electronic device with a BIS monitoring module, and the entropy index connection plug 3 can be communicatively connected to an external electronic device with an entropy index monitoring module. A BIS signal processing chip is provided inside the BIS connection plug 2, and an entropy index signal processing chip is provided inside the entropy index connection plug 3. The model of the BIS signal processing chip is STC32F12K59, and the model of the entropy index signal processing chip is STC90C51RD. Among them, BIS refers to the bispectral index. In this embodiment, the BIS connection plug 2 can receive and process the BIS signal collected by the electroencephalogram sensor main body 1 and transmit it to an external electronic device with a BIS monitoring module. The entropy index connection plug 3 can receive and process the entropy index signal collected by the electroencephalogram sensor main body 1 and transmit it to an external electronic device with an entropy index monitoring module. It can realize that a disposable electroencephalogram sensor can be adapted to the collection and monitoring of both BIS and entropy index at the same time, can be compatible with BIS modules and entropy index module monitoring devices of various brands and models, has wide applicability, is convenient to use on different devices, and greatly improves the use compatibility of the disposable electroencephalogram sensor. Among them, the BIS signal processing chip of model STC32F12K59 is used to process the collected electroencephalogram signals to adapt to the BIS monitoring system. The BIS signal processing chip can accurately extract the BIS-related characteristic parameters in the electroencephalogram signals. It can perform a series of preprocessing operations such as signal amplification, filtering, and analog-to-digital conversion on the signals, and then perform data format conversion and encoding according to the requirements of the BIS monitoring system, so as to accurately transmit the processed signals to the external BIS monitoring device. The entropy index signal processing chip of model STC90C51RD is responsible for processing the electroencephalogram signals to adapt to the entropy index monitoring. The entropy index signal processing chip can accurately calculate the entropy index of the electroencephalogram signals. Similarly, it performs preprocessing on the collected original electroencephalogram signals and performs data processing and output according to the standards of the entropy index monitoring system, and transmits the processed entropy index-related signals to the external entropy index monitoring device.
[0025] As Figure 1As shown in the figure, the EEG sensor body 1 includes a conductive electrode assembly 4, a polyester photosensitive layer, and a conductive circuit 5. The conductive electrode assembly 4 is fixedly and electrically connected to the BIS connection plug 2 and the entropy index connection plug 3 respectively through the conductive circuit 5. The polyester photosensitive layer is disposed to surround and cover the outside of the conductive electrode assembly 4 and the conductive circuit 5. The conductive electrode assembly 4 includes a first electrode sheet 41, a second electrode sheet 42, a third electrode sheet 43, and a fourth electrode sheet 44. The BIS connection plug 2 is electrically connected to the first electrode sheet 41, the second electrode sheet 42, the third electrode sheet 43, and the fourth electrode sheet 44 in sequence through the conductive circuit 5. The entropy index connection plug 3 is electrically connected to the first electrode sheet 41, the third electrode sheet 43, and the fourth electrode sheet 44 in sequence through the conductive circuit 5. Among them, the manufacturing material of the conductive circuit is silver-chloride, and the manufacturing materials of the EEG sensor body, the BIS connection plug, and the entropy index connection plug are flexible printed circuit boards. The overall shape of the EEG sensor body is flat and long. In this embodiment, the flexible printed circuit board can improve the wearing comfort and the close fit with the scalp. The first electrode sheet, the third electrode sheet, and the fourth electrode sheet in the conductive electrode assembly are common electrodes. The EEG signals collected by the conductive electrode assembly are transmitted to the BIS connection plug and the entropy index connection plug through the internally integrated silver-chloride conductive circuit. The present utility model is a disposable product. After use, the product can be directly discarded without performing maintenance work such as cleaning and disinfection, which can effectively avoid the risk of cross-infection.
[0026] As can be seen from the above, the present utility model provides a disposable EEG sensor with dual plugs adapted to BIS and entropy index. By providing a BIS connection plug and an entropy index connection plug that cooperate with each other in the disposable EEG sensor, it is possible to achieve that one disposable EEG sensor can be adapted to the collection and monitoring of both BIS and entropy index at the same time, and it can be compatible with BIS modules and entropy index module monitoring devices of various brands and models, having wide applicability and being convenient to use on different devices, greatly improving the use compatibility of the disposable EEG sensor. When the monitoring requirements of medical staff for BIS and entropy index need to be interchanged, it can be directly connected to the BIS connection plug or the entropy index connection plug without having to replace the sensor again, greatly reducing the cost of medical equipment and also improving the clinical efficiency, solving the problem that the disposable EEG sensor in the prior art does not have the function of simultaneously monitoring BIS and entropy index.
[0027] The above-mentioned specific embodiments are the preferred embodiments of the present utility model, and do not limit the specific implementation scope of the present utility model. The scope of the present utility model includes but is not limited to this specific embodiment. All equivalent changes made in accordance with the present utility model are within the protection scope of the present utility model.
Claims
1. A dual-plug disposable EEG sensor adapted to BIS and entropy index, characterized in that: It includes an EEG sensor body, a BIS connection plug, and an entropy index connection plug. The EEG sensor body is fixedly electrically connected to the BIS connection plug and the entropy index connection plug respectively. The BIS connection plug can be communicatively connected to an external electronic device with a BIS monitoring module, and the entropy index connection plug can be communicatively connected to an external electronic device with an entropy index monitoring module. A BIS signal processing chip is provided in the BIS connection plug, and an entropy index signal processing chip is provided in the entropy index connection plug. The BIS connection plug can receive and process the BIS signals collected by the EEG sensor body and transmit them to an external electronic device with a BIS monitoring module, and the entropy index connection plug can receive and process the entropy index signals collected by the EEG sensor body and transmit them to an external electronic device with an entropy index monitoring module. Herein, BIS refers to the bispectral index of electroencephalogram.
2. The disposable EEG sensor with dual plugs adapted for BIS and entropy index according to claim 1, characterized in that: The EEG sensor body includes a conductive electrode assembly, a polyester photosensitive layer, and conductive lines. The conductive electrode assembly is fixedly electrically connected to the BIS connection plug and the entropy index connection plug respectively through the conductive lines, and the polyester photosensitive layer is disposed to surround and cover the conductive electrode assembly and the conductive lines.
3. The dual-plug disposable EEG sensor adapted to BIS and entropy index according to claim 2, characterized in that: The conductive electrode assembly includes a first electrode piece, a second electrode piece, a third electrode piece, and a fourth electrode piece. The BIS connection plug is electrically connected to the first electrode piece, the second electrode piece, the third electrode piece, and the fourth electrode piece in sequence through the conductive lines, and the entropy index connection plug is electrically connected to the first electrode piece, the third electrode piece, and the fourth electrode piece in sequence through the conductive lines.
4. The disposable EEG sensor with a double plug for adapting BIS and entropy index according to claim 3, wherein: The model of the BIS signal processing chip is STC32F12K59.
5. The disposable EEG sensor with a dual plug for adapting BIS and entropy index according to claim 4, wherein: The model of the entropy index signal processing chip is STC90C51RD.
6. The dual-plug disposable EEG sensor adapted to BIS and entropy index according to claim 5, wherein: The manufacturing material of the conductive lines is silver - silver chloride.
7. The disposable EEG sensor with a dual plug for adapting BIS and entropy index according to claim 6, characterized in that: The manufacturing materials of the EEG sensor body, the BIS connection plug, and the entropy index connection plug are flexible printed circuit boards, and the overall shape of the EEG sensor body is flat and long strip - shaped.