Disposable cap for collecting cerebral blood oxygen

Abstract

The utility model provides a kind of disposable brain blood oxygen collection cap, comprising: cap body, using disposable material;FPC flexible circuit board one is set on cap body, and is located the forehead part of cap body wearing on user's head, and with cap body detachable connection;FPC flexible circuit board two is set on cap body, and is located the left part of crown axis of cap body wearing on user's head, and with cap body detachable connection;FPC flexible circuit board three is set on cap body, and is located the right part of crown axis of cap body wearing on user's head, and with cap body detachable connection;Near infrared LED lamp and photodiode are set on FPC flexible circuit board one, FPC flexible circuit board two, FPC flexible circuit board three, and monitor brain blood oxygen saturation;Processing device is set on cap body, and is connected FPC flexible circuit board one, FPC flexible circuit board two and FPC flexible circuit board three.The utility model can quickly, accurately carry out brain blood oxygen monitoring, while avoid the risk of cross infection.

Description

Technical Field

[0001] This utility model relates to the field of cerebral blood oxygen signal acquisition technology, specifically a disposable cerebral blood oxygen acquisition cap. Background Technology

[0002] Oxygen is fundamental to life, and oxygen deficiency is the root cause of many diseases, which can directly threaten human life in severe cases. Blood, as a carrier, delivers various essential nutrients to the tissues during the body's metabolism, while simultaneously removing harmful substances produced during tissue metabolism.

[0003] Currently, in China, the clinical testing of cerebral oxygen saturation primarily involves implanting catheters in the carotid artery and jugular vein to collect intracranial blood samples periodically, which are then placed in a blood gas analyzer for analysis. This invasive method has the following problems: 1. It carries a significant risk of bleeding, especially in middle-aged and elderly individuals, where inadequate hemostasis could lead to internal bleeding; 2. Data can only be collected at specific time points and cannot be used for real-time monitoring of cerebral oxygenation; 3. It is not convenient for measuring cerebral oxygen saturation. Therefore, there is an urgent need for a more convenient, disposable cerebral oxygenation sampling device to meet rapid response and hygiene requirements. This is particularly important in emergency medical situations, such as ambulances and emergency rooms, where patients' conditions are complex and changeable, requiring rapid and accurate cerebral oxygenation monitoring while avoiding the risk of cross-infection. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a disposable cerebral oxygenation collection cap, which can quickly and accurately monitor cerebral oxygenation while avoiding the risk of cross-infection.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a disposable cerebral oxygenation collection cap, comprising: a cap body made of disposable material; an FPC flexible circuit board one disposed on the cap body and located on the forehead of the cap body when worn on the user's head, and detachably connected to the cap body; an FPC flexible circuit board two disposed on the cap body and located on the left side of the top center axis of the cap body when worn on the user's head, and detachably connected to the cap body; an FPC flexible circuit board three disposed on the cap body and located on the right side of the top center axis of the cap body when worn on the user's head, and detachably connected to the cap body; a near-infrared LED and a photodiode disposed on the FPC flexible circuit boards one, two, and three, and monitoring cerebral oxygen saturation; a processing device disposed on the cap body and connected to the FPC flexible circuit boards one, two, and three; the FPC flexible circuit boards one, two, and three are connected by an FPC flexible flat cable.

[0006] Preferably, the cap body has mounting holes, and the first FPC flexible circuit board, the second FPC flexible circuit board, and the third FPC flexible circuit board are respectively fixedly installed in the mounting holes through mounting structures.

[0007] Preferably, the mounting structure uses rubber protrusions that match the mounting holes.

[0008] Preferably, the FPC flexible circuit board is provided with 10 sets of near-infrared LEDs. Each set of near-infrared LEDs consists of a near-infrared LED with a wavelength of 730-740nm and a near-infrared LED with a wavelength of 850nm. The 10 sets of near-infrared LEDs are distributed in two rows at equal intervals on the FPC flexible circuit board, and there are 4 photodiodes at equal intervals in the middle part of the 10 sets of near-infrared LEDs.

[0009] Preferably, the FPC flexible circuit board 2 is provided with 6 groups of near-infrared LEDs. Each group of near-infrared LEDs consists of a near-infrared LED with a wavelength of 730-740nm and a near-infrared LED with a wavelength of 850nm. The 6 groups of near-infrared LEDs are distributed in two rows at equal intervals on the FPC flexible circuit board 2, and there are 2 photodiodes at equal intervals in the middle part of the 6 groups of near-infrared LEDs.

[0010] Preferably, the FPC flexible circuit board three is provided with 6 groups of near-infrared LEDs. Each group of near-infrared LEDs consists of a near-infrared LED with a wavelength of 730-740nm and a near-infrared LED with a wavelength of 850nm. The 6 groups of near-infrared LEDs are distributed in two rows at equal intervals on the FPC flexible circuit board three, and there are 2 photodiodes at equal intervals in the middle part of the 6 groups of near-infrared LEDs.

[0011] Preferably, the processing device includes an FR4 circuit board, which contains a power supply module, a main control chip, an LED light source driver, a filtering module, a transimpedance amplifier module, a signal acquisition module, and a communication module.

[0012] Preferably, the FR4 circuit board is connected via an FPC flexible flat cable.

[0013] Preferably, the cap body is made of disposable non-woven fabric.

[0014] The beneficial effects of this utility model are:

[0015] 1. The cap body is made of disposable materials, ensuring convenience and hygiene. It can quickly and accurately monitor cerebral blood oxygenation. This design is not only easy to wear and remove, avoiding the risk of tissue damage that may be caused by traditional implantable devices, but also avoids the risk of cross-infection.

[0016] 2. By setting FPC flexible circuit board one, FPC flexible circuit board two, and FPC flexible circuit board three on the forehead, left and right sides of the top of the head respectively, and equipping them with near-infrared LED lights, multi-point monitoring of cerebral blood oxygen saturation is achieved. This multi-point layout can more comprehensively and accurately reflect the blood oxygen status of different areas of the brain, providing more reliable data support for medical diagnosis.

[0017] 3. The detachable connection between the FPC flexible circuit board and the cap body allows these circuit boards to be easily replaced when damaged or needing to be updated, extending the overall product lifespan and increasing the flexibility of use. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a simplified structural diagram of the disposable cerebral blood oxygenation cap proposed in this utility model.

[0020] In the diagram: 1. Cap body; 2. FPC flexible circuit board one; 3. FPC flexible circuit board two; 4. FPC flexible circuit board three; 5. FR4 circuit board; 6. FPC flexible flat cable. Detailed Implementation

[0021] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are only preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the embodiments without creative effort are all within the protection scope of this utility model.

[0022] Please see Figure 1A disposable cerebral oxygenation cap includes: a cap body 1 made of disposable material; an FPC flexible circuit board 2 disposed on the cap body 1 and located on the forehead of the cap body 1 when worn on the user's head, and detachably connected to the cap body 1; an FPC flexible circuit board 3 disposed on the cap body 1 and located on the left side of the top center axis of the cap body 1 when worn on the user's head, and detachably connected to the cap body 1; an FPC flexible circuit board 4 disposed on the cap body 1 and located on the right side of the top center axis of the cap body 1 when worn on the user's head, and detachably connected to the cap body 1; and a near-infrared L... An LED and photodiode are mounted on FPC flexible circuit boards 1 (2), 2 (3), and 3 (4) to monitor cerebral oxygen saturation. A processing device is mounted on the cap 1 and connected to FPC flexible circuit boards 1 (2), 2 (3), and 3 (4). These boards are connected via FPC flexible flat cables (6), ensuring stable and reliable data transmission. This connection method not only reduces signal interference and loss but also improves the overall performance and durability of the product.

[0023] This invention employs a non-implantable approach, avoiding the risks of tissue damage and infection that may occur with traditional implantable devices. This design not only improves patient comfort but also reduces the likelihood of postoperative complications, making it particularly suitable for long-term monitoring and frequent use. Furthermore, the non-implantable design makes this invention applicable to a wider range of patients, including children, the elderly, and those with specific health conditions. This design not only enhances the device's versatility but also lowers the barrier to entry, making cerebral oxygenation monitoring more widely available.

[0024] This invention employs a disposable design, with the cap body 1 made of low-cost disposable non-woven fabric, resulting in low production costs. This design not only makes the device more economically feasible but also reduces maintenance and cleaning costs, making it suitable for single-use medical scenarios. It avoids the impact of equipment aging and contamination on monitoring results, improving data collection efficiency and accuracy. It not only ensures the reliability of monitoring but also reduces duplicate monitoring due to equipment problems, improving the utilization efficiency of medical resources.

[0025] The cap body 1 has mounting holes, and FPC flexible circuit board 1 2, FPC flexible circuit board 2 3 and FPC flexible circuit board 3 4 are respectively fixedly installed in the mounting holes through mounting structures. The mounting structures use rubber protrusions that match the mounting holes.

[0026] This invention employs a split design, separating the mechanical and electrical structures. This allows the cap body 1 to be selected according to the head circumference of different patients, ensuring wearing comfort and stability. This not only improves the device's versatility but also adapts to patients of different ages and head shapes. The FPC flexible circuit board is fixed via a perforated structure on the cap body 1, avoiding the instability inherent in a split structure.

[0027] The present invention adopts a disposable design for the patient contact structure (cap body 1, FPC flexible circuit board) and a non-disposable design for the non-contact structure (FR4 circuit board 5), which can save costs and reduce the possibility of cross-infection.

[0028] The FPC flexible circuit board 2 is equipped with 10 sets of near-infrared LEDs. Each set of near-infrared LEDs consists of a near-infrared LED with a wavelength of 730-740nm and a near-infrared LED with a wavelength of 850nm. The 10 sets of near-infrared LEDs are distributed in two rows at equal intervals on the FPC flexible circuit board 2, and there are 4 photodiodes at equal intervals in the middle part of the 10 sets of near-infrared LEDs.

[0029] The FPC flexible circuit board 23 is equipped with 6 groups of near-infrared LEDs. Each group of near-infrared LEDs consists of a near-infrared LED with a wavelength of 730-740nm and a near-infrared LED with a wavelength of 850nm. The 6 groups of near-infrared LEDs are distributed in two rows at equal intervals on the FPC flexible circuit board 23, and there are 2 photodiodes at equal intervals in the middle part of each of the 6 groups of near-infrared LEDs.

[0030] The FPC flexible circuit board 34 is equipped with 6 groups of near-infrared LEDs. Each group of near-infrared LEDs consists of a near-infrared LED with a wavelength of 730-740nm and a near-infrared LED with a wavelength of 850nm. The 6 groups of near-infrared LEDs are distributed in two rows at equal intervals on the FPC flexible circuit board 34, and there are 2 photodiodes at equal intervals in the middle part of each of the 6 groups of near-infrared LEDs.

[0031] The processing device includes an FR4 circuit board 5, which contains a power supply module, a main control chip, an LED light source driver, a filtering module, a transimpedance amplifier module, a signal acquisition module, and a communication module.

[0032] Power module: After being connected to the battery or power cord, it is isolated into two parts: analog power and digital power. The analog power is used to power the LED light source driver, filter module, transimpedance amplifier module, and analog side power supply of the signal acquisition module.

[0033] Main control chip: Used to control the signals at the digital end of the LED light source driver, communication module, and signal acquisition module;

[0034] LED light source driver: Electrically connected directly to FPC flexible circuit board 2 3, FPC flexible circuit board 3 4 and processing device, used to control the on / off state of near-infrared LEDs;

[0035] Filtering module: Used to perform 10Hz low-pass filtering on the current signals transmitted by the photodiodes on FPC flexible circuit board 2 (3), FPC flexible circuit board 3 (4) and the processing device.

[0036] Transimpedance amplifier module: amplifies the filtered current signal and converts it into a voltage signal;

[0037] Signal acquisition module: Acquires the voltage signal after transimpedance amplification and converts the analog signal into a digital signal for transmission to the main control chip;

[0038] Communication module: Used for network communication, it can transmit data to the database via WIFI;

[0039] The processing unit enables real-time processing and analysis of data collected from each FPC flexible circuit board, improving monitoring efficiency and accuracy. Simultaneously, this integrated design simplifies the operation process, allowing users to obtain monitoring results more intuitively.

[0040] The FR4 circuit board 5 is connected via an FPC flexible flat cable 6.

[0041] The near-infrared LED light source and photoelectric conversion function are composed of three FPC flexible circuit boards: FPC flexible circuit board 1 (2), FPC flexible circuit board 2 (3), and FPC flexible circuit board 3 (4). The infrared light source driving, photoelectric signal acquisition, filtering, and processing are realized by FR4 circuit board 5. FR4 circuit board is connected to FPC flexible circuit board 1 (2) through FPC flexible flat cable 6. FPC flexible flat cable 6 is fixed to the cap body 1 through a horizontal perforation at the back of the user's head, so that FR4 circuit board 5 can hang freely at the back of the human head.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A disposable cerebral oxygenation collection cap, characterized in that, include: The cap body (1) is made of disposable material; FPC flexible circuit board 1 (2) is set on the cap body (1) and located on the forehead of the cap body (1) worn on the user's head, and is detachably connected to the cap body (1); The second FPC flexible circuit board (3) is set on the hat body (1) and located on the left side of the central axis of the top of the hat body (1) when it is worn on the user's head, and is detachably connected to the hat body (1). The FPC flexible circuit board three (4) is set on the hat body (1) and located on the right side of the central axis of the top of the hat body (1) when it is worn on the user's head, and is detachably connected to the hat body (1). Near-infrared LEDs and photodiodes are installed on FPC flexible circuit board one (2), FPC flexible circuit board two (3), and FPC flexible circuit board three (4) to monitor cerebral blood oxygen saturation; The processing device is set on the cap (1) and connected to FPC flexible circuit board one (2), FPC flexible circuit board two (3) and FPC flexible circuit board three (4); The FPC flexible circuit board 1 (2), FPC flexible circuit board 2 (3) and FPC flexible circuit board 3 (4) are connected by an FPC flexible flat cable (6).

2. The disposable cerebral oxygenation collection cap according to claim 1, characterized in that: The cap body (1) has mounting holes, and the first FPC flexible circuit board (2), the second FPC flexible circuit board (3) and the third FPC flexible circuit board (4) are respectively fixedly installed in the mounting holes through the mounting structure.

3. The disposable cerebral oxygenation collection cap according to claim 2, characterized in that: The mounting structure uses rubber protrusions that match the mounting holes.

4. The disposable cerebral oxygenation collection cap according to claim 1, characterized in that: Ten sets of near-infrared LEDs are provided on the FPC flexible circuit board 1 (2). Each set of near-infrared LEDs consists of a near-infrared LED with a wavelength of 730-740nm and a near-infrared LED with a wavelength of 850nm. The ten sets of near-infrared LEDs are distributed in two rows at equal intervals on the FPC flexible circuit board 1 (2), and there are four photodiodes at equal intervals in the middle part of the ten sets of near-infrared LEDs.

5. A disposable cerebral oxygenation collection cap according to claim 1, characterized in that: The FPC flexible circuit board 2 (3) is equipped with 6 sets of near-infrared LEDs. Each set of near-infrared LEDs consists of a near-infrared LED with a wavelength of 730-740nm and a near-infrared LED with a wavelength of 850nm. The 6 sets of near-infrared LEDs are distributed in two rows at equal intervals on the FPC flexible circuit board 2 (3), and there are 2 photodiodes at equal intervals in the middle part of the 6 sets of near-infrared LEDs.

6. A disposable cerebral oxygenation collection cap according to claim 1, characterized in that: Six sets of near-infrared LEDs are provided on the FPC flexible circuit board three (4). Each set of near-infrared LEDs consists of a near-infrared LED with a wavelength of 730-740nm and a near-infrared LED with a wavelength of 850nm. The six sets of near-infrared LEDs are distributed in two rows at equal intervals on the FPC flexible circuit board three (4), and there are two photodiodes at equal intervals in the middle part of the six sets of near-infrared LEDs.

7. A disposable cerebral oxygenation collection cap according to claim 1, characterized in that: The processing device includes an FR4 circuit board (5), which contains a power supply module, a main control chip, an LED light source driver, a filtering module, a transimpedance amplifier module, a signal acquisition module, and a communication module.

8. A disposable cerebral oxygenation collection cap according to claim 7, characterized in that: The FR4 circuit board (5) is connected via an FPC flexible flat cable (6).

9. A disposable cerebral oxygenation collection cap according to claim 1, characterized in that: The cap body (1) is made of disposable non-woven fabric.

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