A device and system for acquiring blood flow pressure information

Abstract

The utility model discloses a device and system for obtaining blood flow pressure information relates to medical equipment technical field, and this device includes: pressure receiving and transmitter, wherein, pressure receiving and transmitter includes: main control circuit, optical fiber analysis module slot, piezoelectric analysis module slot, optical fiber interface and piezoelectric interface, the utility model discloses through the setting of optical fiber analysis module slot and piezoelectric analysis module slot, can according to customer demand flexible configuration equipment function, through the setting of optical fiber interface and piezoelectric interface, can be compatible piezoelectric type pressure sensor and optical fiber type pressure sensor, has improved equipment applicability, makes medical staff can switch to use the required sensor according to the actual demand of patient during operation and carries out pressure detection, effectively reduces the learning cost of medical staff, and through the modular design of pressure receiving and transmitter and host computer equipment, has improved the mobile flexibility of equipment.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, and in particular to a device and system for acquiring blood flow pressure information. Background Technology

[0002] Currently, coronary artery blood flow pressure is used in the physiological function assessment of coronary arteries. Related technologies for detecting coronary artery blood flow pressure only support a single sensor type, such as a piezoelectric pressure sensor or a fiber optic pressure sensor. However, the different pressure detection principles, effects, and operating methods of different sensors make it costly for medical staff to learn different devices, and it is difficult to switch between the required sensor type and pressure detection method according to the patient's actual needs during surgery.

[0003] Therefore, how to make piezoelectric pressure sensors and fiber optic pressure sensors compatible in devices used to acquire blood flow pressure information, so that medical staff can switch between the required sensors for pressure detection according to the patient's actual needs during surgery, and effectively reduce the learning cost for medical staff, is an urgent problem to be solved. Utility Model Content

[0004] The purpose of this invention is to provide a device and system for acquiring blood flow pressure information, which is compatible with both piezoelectric and fiber optic pressure sensors for blood flow pressure measurement, enabling medical staff to select the appropriate sensor based on the patient's actual needs and reducing the learning cost for medical staff.

[0005] To solve the above-mentioned technical problems, this utility model provides a device for acquiring blood flow pressure information, including: a pressure receiver and transmitter; wherein, the pressure receiver and transmitter includes: a main control circuit, an optical fiber resolution module slot, a piezoelectric resolution module slot, an optical fiber interface, and a piezoelectric interface;

[0006] The fiber optic resolution module slot is used to install a fiber optic resolution module and connects to a fiber optic pressure acquisition component through the fiber optic interface, enabling the fiber optic resolution module to acquire first pressure information acquired by the fiber optic pressure sensor in the fiber optic pressure acquisition component; the piezoelectric resolution module slot is used to install a piezoelectric resolution module and connects to a piezoelectric pressure acquisition component through the piezoelectric interface, enabling the piezoelectric resolution module to acquire second pressure information acquired by the piezoelectric pressure sensor in the piezoelectric pressure acquisition component.

[0007] The main control circuit is used to communicate with the host device and send target pressure information to the host device; wherein, the target pressure information includes the pressure information corresponding to the first pressure information and / or the second pressure information.

[0008] On the other hand, the device also includes the fiber optic pressure acquisition component and the piezoelectric pressure acquisition component;

[0009] The fiber optic pressure sensor is mounted on the fiber optic pressure guide wire in the fiber optic pressure acquisition assembly, and the piezoelectric pressure sensor is mounted on the piezoelectric pressure microcatheter in the piezoelectric pressure acquisition assembly; or, the fiber optic pressure sensor is mounted on the fiber optic pressure microcatheter in the fiber optic pressure acquisition assembly, and the piezoelectric pressure sensor is mounted on the piezoelectric pressure guide wire in the piezoelectric pressure acquisition assembly.

[0010] On the other hand, the fiber optic pressure acquisition component includes: a smart fiber optic connector, the fiber optic pressure guide wire, and the fiber optic pressure sensor;

[0011] The fiber optic pressure sensor is used to collect the first pressure information;

[0012] The optical fiber pressure guide wire is used to transmit the first pressure information;

[0013] The intelligent fiber optic connector is used to connect the fiber optic pressure guide wire and the fiber optic interface to transmit the first pressure information to the fiber optic interface.

[0014] On the other hand, the fiber optic pressure acquisition component also includes:

[0015] The fiber optic handle is used to connect the fiber optic pressure guide wire and the fiber optic cable to transmit the first pressure information; wherein, the smart fiber optic connector is used to connect the fiber optic cable and the fiber optic interface.

[0016] On the other hand, a first memory is provided on the smart fiber connector, the first memory being used to store the guide wire information of the fiber pressure guide wire;

[0017] The fiber optic interface includes an in-situ detection device and an information reading device; the in-situ detection device is used to detect the in-situ connection status of the fiber optic pressure acquisition component; the in-situ connection status is either in-situ or out-of-situ; the information reading device is used to read the guide wire information stored in the first memory when the fiber optic pressure acquisition component is in the in-situ state, so that the host device can use the guide wire information for signal processing.

[0018] On the other hand, the piezoelectric pressure acquisition component includes a conduit connector, the piezoelectric pressure microcatheter, and the piezoelectric pressure sensor;

[0019] The piezoelectric pressure sensor is used to collect the second pressure information;

[0020] The piezoelectric pressure microcatheter is used to transmit the second pressure information;

[0021] The conduit connector is used to connect the piezoelectric pressure microcatheter and the piezoelectric interface to transmit the second pressure information to the piezoelectric interface.

[0022] On the other hand, a second memory is provided on the catheter connector, which is used to store the sensitivity and temperature information of the piezoelectric pressure microcatheter, so that the host device can use the sensitivity and temperature information to calibrate the second pressure information.

[0023] On the other hand, both the first pressure information and the second pressure information are pressure information of the distal end of the blood vessel; correspondingly, the target pressure information is distal pressure information.

[0024] The pressure receiver and transmitter also includes:

[0025] The proximal pressure interface connected to the piezoelectric analysis module slot is used to connect to an intravascular blood pressure monitoring sensor; the piezoelectric analysis module is also used to acquire proximal pressure information collected by the intravascular blood pressure monitoring sensor.

[0026] The main control circuit is specifically used to send the remote pressure information and the proximal pressure information to the host device.

[0027] On the other hand, the pressure receiver and transmitter also includes:

[0028] The built-in battery is used to power the main control circuit, the piezoelectric analysis module installed in the piezoelectric analysis module slot, and the optical fiber analysis module installed in the optical fiber analysis module slot.

[0029] On the other hand, the pressure receiver and transmitter also includes:

[0030] A wireless communication component is used to send the target pressure information to the host device via a wireless communication connection with the host device.

[0031] On the other hand, the pressure receiver and transmitter further includes: the optical fiber resolution module and / or the piezoelectric resolution module.

[0032] On the other hand, the pressure receiver and transmitter further includes: the optical fiber resolution module and the piezoelectric resolution module; the main control circuit is specifically used to receive first pressure information sent by the optical fiber resolution module and second pressure information sent by the piezoelectric resolution module when the optical fiber interface is connected to the optical fiber pressure acquisition component and the piezoelectric interface is connected to the piezoelectric pressure acquisition component; and to send the first pressure information as the target pressure information to the host device.

[0033] In addition, this utility model also provides a system for acquiring blood flow pressure information, including: a host device and the device for acquiring blood flow pressure information as described above.

[0034] This utility model provides a device for acquiring blood flow pressure information, comprising: a pressure receiver and transmitter; wherein the pressure receiver and transmitter includes: a main control circuit, a fiber optic resolution module slot, a piezoelectric resolution module slot, a fiber optic interface, and a piezoelectric interface; the fiber optic resolution module slot is used to install a fiber optic resolution module and connects to a fiber optic pressure acquisition component through the fiber optic interface, enabling the fiber optic resolution module to acquire first pressure information acquired by a fiber optic pressure sensor in the fiber optic pressure acquisition component; the piezoelectric resolution module slot is used to install a piezoelectric resolution module and connects to a piezoelectric pressure acquisition component through the piezoelectric interface, enabling the piezoelectric resolution module to acquire second pressure information acquired by a piezoelectric pressure sensor in the piezoelectric pressure acquisition component; the main control circuit is used to communicate with a host device and send target pressure information to the host device; wherein the target pressure information includes pressure information corresponding to the first pressure information and / or the second pressure information.

[0035] As can be seen, the device for acquiring blood flow pressure information of this invention, through the setting of fiber optic resolution module slots and piezoelectric resolution module slots, can flexibly configure device functions according to customer needs; through the setting of fiber optic interfaces and piezoelectric interfaces, it can be compatible with piezoelectric pressure sensors and fiber optic pressure sensors, improving the applicability of the device, enabling medical staff to switch to the required sensor for pressure detection according to the actual needs of the patient during surgery, effectively reducing the learning cost for medical staff; and through the modular design of the pressure receiver and transmitter and the main unit, the mobility of the device is improved. In addition, this invention also provides a system for acquiring blood flow pressure information, which also has the above-mentioned beneficial effects. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0037] Figure 1 A structural block diagram of a device for acquiring blood flow pressure information provided in an embodiment of this utility model;

[0038] Figure 2 This is a schematic diagram of the structure of the piezoelectric pressure sensor provided in the embodiment of this utility model;

[0039] Figure 3This is a schematic diagram of the structure of the fiber optic pressure sensor provided in an embodiment of the present invention;

[0040] Figure 4 A schematic diagram illustrating the calculation principle of coronary artery fractional flow reserve provided in this embodiment of the utility model;

[0041] Figure 5 A schematic diagram of another device for acquiring blood flow pressure information provided in an embodiment of this utility model;

[0042] Figure 6 A schematic diagram of a system for acquiring blood flow pressure information provided in an embodiment of this utility model;

[0043] Figure 7 This is a schematic diagram of the structure of an optical fiber interface provided in an embodiment of the present utility model;

[0044] Figure 8 This is a schematic diagram of the structure of an intelligent fiber optic connector provided in an embodiment of the present invention;

[0045] Figure 9 This is a schematic diagram of a conduit connector provided in an embodiment of the present utility model. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0047] Please refer to Figure 1 , Figure 1 This is a structural block diagram of a device for acquiring blood flow pressure information, provided as an embodiment of the present invention. The device may include: a pressure receiver and transmitter; wherein the pressure receiver and transmitter includes: a main control circuit 10, a fiber optic resolution module slot 20, a piezoelectric resolution module slot 30, a fiber optic interface 40, and a piezoelectric interface 50;

[0048] The fiber optic resolution module slot 20 is used to install the fiber optic resolution module and connects to the fiber optic pressure acquisition component through the fiber optic interface 40, so that the fiber optic resolution module can acquire the first pressure information collected by the fiber optic pressure sensor in the fiber optic pressure acquisition component; the piezoelectric resolution module slot 30 is used to install the piezoelectric resolution module and connects to the piezoelectric pressure acquisition component through the piezoelectric interface 50, so that the piezoelectric resolution module can acquire the second pressure information collected by the piezoelectric pressure sensor in the piezoelectric pressure acquisition component.

[0049] The main control circuit 10 is used to communicate with the host device and send target pressure information to the host device; wherein, the target pressure information includes pressure information corresponding to the first pressure information and / or the second pressure information.

[0050] It is understood that the pressure receiver and transmitter in this embodiment can connect to the fiber optic pressure acquisition component via the fiber optic interface 40, and analyze the signal acquired by the fiber optic pressure sensor in the fiber optic pressure acquisition component through the fiber optic analysis module installed on the fiber optic analysis module slot 20 to obtain the first pressure information; and connect to the piezoelectric pressure acquisition component via the piezoelectric interface 50, and analyze the signal acquired by the piezoelectric pressure sensor in the piezoelectric pressure acquisition component through the piezoelectric analysis module to obtain the second pressure information; thereby achieving compatibility between the piezoelectric pressure sensor and the fiber optic pressure sensor, enabling users (such as medical personnel) to configure and install the fiber optic pressure acquisition component and / or the piezoelectric pressure acquisition component according to their needs.

[0051] The specific sensor structures of the piezoelectric pressure sensor and the fiber optic pressure sensor in this embodiment can be set by the designer. For example, they can be set in a manner similar to or the same as the structures of piezoelectric and fiber optic pressure sensors in related technologies. For instance, the piezoelectric pressure sensor can be a resistive half-bridge manufactured using MEMS (Micro Electromechanical Systems) technology, and its equivalent circuit is as follows: Figure 2 As shown; because the half-bridge (01 and 02) is sensitive to pressure and temperature, temperature changes can easily cause pressure drift. To reduce the influence of temperature, temperature calibration can be performed on each sensor. Figure 3 As shown, the fiber optic pressure sensor has a Fabry cavity (07) added to the end face of the fiber (08), and a pressure diaphragm (06) placed at one end of the Fabry cavity. The pressure diaphragm is not sensitive to temperature changes but is sensitive to pressure. The pressure drift caused by temperature is smaller than that of the piezoelectric pressure sensor. The pressure is calculated by demodulating the Fabry interference using the designed fiber optic demodulator.

[0052] Correspondingly, in this embodiment, the arrangement of the fiber optic resolution module slot 20 and the piezoelectric resolution module slot 30 in the pressure receiver and transmitter allows both the fiber optic resolution module and the piezoelectric resolution module to be selectively assembled, thereby enabling flexible configuration of device functions according to usage requirements. In some embodiments, the pressure receiver and transmitter may further include a fiber optic resolution module and / or a piezoelectric resolution module.

[0053] In this embodiment, the fiber optic pressure acquisition component can use a fiber optic pressure sensor to acquire pressure signals (i.e., first pressure information, such as coronary artery blood flow pressure) and send the pressure signals to the connected fiber optic interface 40. The piezoelectric pressure acquisition component in this embodiment can use a piezoelectric pressure sensor to acquire pressure signals (i.e., second pressure information) and send the pressure signals to the connected piezoelectric interface 50.

[0054] It should be noted that in this embodiment, the target pressure information can be the pressure information obtained by the main control circuit 10 using the received first pressure information and / or second pressure information, which is then sent to the host device. This embodiment does not limit the specific pressure acquisition location of the target pressure information, that is, it does not limit the specific structure of the fiber optic pressure acquisition component and the piezoelectric pressure acquisition component. For example, the target pressure information can be proximal pressure information, meaning that both the first and second pressure information can be pressure information at the proximal end of the blood vessel; correspondingly, the fiber optic pressure acquisition component and the piezoelectric pressure acquisition component can include corresponding pressure sensors and cables to acquire pressure information near the location where the blood vessel is inserted. The target pressure information can also be distal pressure information, meaning that both the first and second pressure information can be pressure information at the distal end of the blood vessel; correspondingly, the fiber optic pressure acquisition component and the piezoelectric pressure acquisition component can also include a pressure guidewire or a pressure microcatheter to acquire pressure information at the distal end of the blood vessel using a pressure sensor at the tip of the pressure guidewire or pressure microcatheter. The proximal end of the blood vessel can be the end of the blood vessel closer to the operator, and the distal end of the blood vessel can be the end of the blood vessel farther from the operator. The blood vessel can be a coronary artery or other blood vessels. For example, fiber optic or piezoelectric pressure acquisition components can acquire both distal and proximal pressure information. Taking a fiber optic component as an example, it can be first placed at the distal end of the coronary artery to acquire distal pressure information, and then moved to the proximal end to acquire proximal pressure information. The same principle applies to piezoelectric pressure acquisition components, and will not be elaborated further.

[0055] For example, the fiber optic pressure acquisition component and the piezoelectric pressure acquisition component in this embodiment may further include a pressure guidewire or a pressure microcatheter, respectively; both the fiber optic pressure acquisition component and the piezoelectric pressure acquisition component may include a pressure microcatheter. To enable the device provided in this embodiment for acquiring blood flow pressure information to be compatible with pressure guidewires and pressure microcatheters, allowing medical personnel to select the appropriate pressure guidewire or pressure microcatheter based on their own and the patient's actual situation, the device provided in this embodiment further includes a fiber optic pressure acquisition component and a piezoelectric pressure acquisition component; the fiber optic pressure sensor is disposed on the fiber optic pressure guidewire in the fiber optic pressure acquisition component, and the piezoelectric pressure sensor is disposed on the piezoelectric pressure microcatheter in the piezoelectric pressure acquisition component; or, the fiber optic pressure sensor is disposed on the fiber optic pressure microcatheter in the fiber optic pressure acquisition component, and the piezoelectric pressure sensor is disposed on the piezoelectric pressure guidewire in the piezoelectric pressure acquisition component.

[0056] Correspondingly, the specific structures of the fiber optic pressure acquisition component and the piezoelectric pressure acquisition component in this embodiment can be customized by the designer according to the usage scenario and user requirements. For example, if the fiber optic pressure sensor is installed on the fiber optic pressure guide wire in the fiber optic pressure acquisition component, the fiber optic pressure acquisition component may include: an SCIA (Smart Fiber Interface Protocol) connector (i.e., a smart fiber optic connector), a fiber optic pressure guide wire, and a fiber optic pressure sensor; the fiber optic pressure sensor is used to acquire first pressure information; the fiber optic pressure guide wire is used to transmit the first pressure information; and the smart fiber optic connector is used to connect the fiber optic pressure guide wire and the fiber optic interface 40 to transmit the first pressure information to the fiber optic interface 40. Similarly, the piezoelectric pressure acquisition component may include a conduit connector, a piezoelectric pressure microconduit, and a piezoelectric pressure sensor; the piezoelectric pressure sensor is used to acquire second pressure information; the piezoelectric pressure microconduit is used to transmit the second pressure information; and the conduit connector is used to connect the piezoelectric pressure microconduit and the piezoelectric interface 50 to transmit the second pressure information to the piezoelectric interface 50. This embodiment does not impose any restrictions on the fact that the fiber optic pressure acquisition component and the piezoelectric pressure acquisition component can transmit the signals acquired by their respective sensors to the pressure receiver and transmitter, so that the pressure receiver and transmitter can obtain the first pressure information and the second pressure information.

[0057] In some embodiments, the fiber optic pressure acquisition assembly may include not only a smart fiber optic connector, a fiber optic pressure guidewire, and a fiber optic pressure sensor, but also a fiber optic handle for connecting the fiber optic pressure guidewire and the fiber optic cable to transmit first pressure information; wherein, the smart fiber optic connector is used to connect the fiber optic cable and the fiber optic interface 40. Figure 6As shown, the fiber optic pressure guidewire can be used to transmit the first pressure information (such as coronary artery blood flow pressure) collected by the fiber optic pressure sensor at its tip; the fiber optic handle can be used to connect the fiber optic pressure guidewire and the fiber optic cable, serving to transmit optical signals, and can also be used to control the fiber optic pressure guidewire; the intelligent fiber optic connector (SCIA connector) connected to the fiber optic handle via the fiber optic cable can be used to connect the fiber optic interface 40 of the pressure receiver and transmitter and the fiber optic cable, serving to transmit optical signals, so as to transmit the first pressure information to the fiber optic resolution module installed in the fiber optic resolution module slot 20 through the fiber optic interface 40.

[0058] Correspondingly, such as Figure 6 As shown, the piezoelectric pressure microconduit in the piezoelectric pressure acquisition component can be used to transmit the second pressure information acquired by the piezoelectric pressure sensor at its tip; the conduit connector can be used to connect the piezoelectric interface 50 of the pressure receiver and transmitter and the piezoelectric pressure microconduit to transmit the second pressure information to the piezoelectric analysis module installed in the piezoelectric analysis module slot 30 through the piezoelectric interface 50.

[0059] Furthermore, such as Figure 7 As shown, the fiber optic interface 40 can be internally equipped with an in-situ detection device 41 for detecting the in-situ status of the intelligent fiber optic connector (i.e., the in-situ connection status of the fiber optic pressure acquisition component) and an information reading device 42 for reading the guide wire information of the connected fiber optic pressure guide wire, so as to realize the in-situ connection status detection and guide wire information reading of the fiber optic pressure guide wire connected to the fiber optic interface 40; correspondingly, as Figure 8 As shown, a first memory (such as a memory chip) can be set on the intelligent fiber optic connector. This first memory is used to store the guide wire information of the fiber optic pressure guide wire, and can be used in conjunction with an information reading device to complete the reading of the guide wire information of the fiber optic pressure guide wire.

[0060] In other words, a first memory can be set on the intelligent fiber optic connector to store the guide wire information of the fiber optic pressure guide wire; the fiber optic interface 40 includes an in-situ detection device and an information reading device; the in-situ detection device is used to detect the in-situ connection status of the fiber optic pressure acquisition component; the in-situ connection status is either in-situ or out-of-situ; the information reading device is used to read the guide wire information stored in the first memory when the fiber optic pressure acquisition component is in-situ, so that the host device can use the guide wire information for signal processing. Correspondingly, the host device can display the guide wire information so that the user can control the fiber optic pressure guide wire according to the guide wire information, facilitating the acquisition of the first pressure information. The host device can also control the movement of the fiber optic pressure guide wire according to the guide wire information; for example, the host device can control the movement of the fiber optic pressure guide wire according to the guide wire length, guide wire material and / or structural type in the guide wire information to acquire accurate pressure information at a precise location.

[0061] Correspondingly, such asFigure 9 As shown, a second memory can be installed on the catheter connector. This second memory stores the sensitivity and temperature information of the piezoelectric pressure microcatheter, allowing the host device to calibrate the second pressure information using this sensitivity and temperature information. In other words, after the catheter connector is connected to the piezoelectric interface 50 of the pressure receiver and transmitter, the host device can read the sensitivity and temperature information of the piezoelectric pressure microcatheter stored in the second memory of the catheter connector through the pressure receiver and transmitter. This information can then be used to calibrate the second pressure information (such as temperature calibration and pressure adjustment calculations corresponding to the sensitivity), making the measured pressure more accurate.

[0062] Furthermore, the piezoelectric pressure acquisition component in this embodiment may also include a temperature sensor for acquiring the temperature near the piezoelectric pressure sensor, so as to facilitate the host device's temperature calibration of the second pressure information. That is, the host device can use the temperature acquired by the temperature sensor to perform temperature calibration on the second pressure information of the piezoelectric pressure sensor. For example, the temperature sensor can be placed on the piezoelectric pressure microcatheter.

[0063] It should be noted that coronary artery physiological function assessment indicators such as FFR (Fraction Flow Reservation) and IFR (Instantaneous Wave-free Ratio) are functional and physiological indicators for evaluating coronary artery blood flow and can be used to assess the blood supply capacity of the coronary arteries. The calculation of these coronary artery physiological function assessment indicators requires proximal and distal pressures. For example, the formula for calculating the fractional coronary artery flow reserve (FFR) can be obtained using... ;like Figure 4 As shown, It can be proximal pressure (commonly replaced by aortic pressure). It can be distal pressure (such as the pressure value distal to a coronary artery lesion). The average value of distal pressure. The calculation period for both the proximal and distal pressures can be one or multiple, representing the average proximal pressure. Therefore, the pressure receiver and transmitter provided in this embodiment can be used to receive and transmit distal and proximal pressure information to the host device to determine... and This will improve the convenience and accuracy of calculating coronary physiological function evaluation indicators (such as FFR).

[0064] For example, in some embodiments, both the first pressure information and the second pressure information can be pressure information from the distal end of the blood vessel; correspondingly, the target pressure information is distal pressure information; the pressure receiver and transmitter may further include: a proximal pressure interface connected to the piezoelectric analysis module slot 30, used to connect to an intravascular blood pressure monitoring sensor; the piezoelectric analysis module is also used to acquire proximal pressure information (such as aortic blood flow pressure) collected by the intravascular blood pressure monitoring sensor; the main control circuit 10 is specifically used to send distal pressure information and proximal pressure information to the host device. That is, the pressure receiver and transmitter can utilize the proximal pressure interface (such as... Figure 5 The Pa interface in the image connects to an intravascular blood pressure monitoring sensor to receive proximal pressure information collected by the sensor. This intravascular blood pressure monitoring sensor can be an insertable sensor that measures blood pressure inside a blood vessel, such as an IBP (Invasive Blood Pressure Monitoring) sensor. Figure 6 As shown, the proximal pressure interface can be connected to the IBP sensor via an IBP cable; the piezoelectric analysis module can also analyze the signal collected by the IBP sensor to obtain proximal pressure information.

[0065] like Figure 5 and Figure 6 As shown, when the pressure receiver and transmitter are equipped with a fiber optic resolution module, a piezoelectric resolution module, and a proximal pressure interface (Pa interface), the pressure receiver and transmitter can process signals acquired by the fiber optic pressure sensor at the tip of the fiber optic pressure guidewire, the piezoelectric pressure sensor at the tip of the piezoelectric pressure microcatheter, and the IBP sensor, and send the processed distal and proximal pressure information to the host device. Correspondingly, the host device can process the data from the pressure receiver and transmitter (such as distal and proximal pressure information), execute the FFR operation flow, calculate the FFR, display the corresponding waveform, and record patient information. For example, the host device can specifically be the host unit of an IVUS (Intravascular Ultrasound) device (i.e., the IVUS host), so that by integrating the FFR function onto the IVUS host, additional equipment investment can be avoided, saving hardware costs. The host device can be used to process and display IVUS images, and can also simultaneously process and display pressure information.

[0066] It should be noted that the specific method by which the main control circuit 10 in the pressure receiver and transmitter in this embodiment acquires the target pressure information (such as remote pressure information) corresponding to the first pressure information and / or the second pressure information can be set by the designer. For example, if the fiber optic interface 40 and the piezoelectric interface 50 of the pressure receiver and transmitter are only connected to the fiber optic pressure acquisition component or the piezoelectric pressure acquisition component, the main control circuit 10 can directly use the first pressure information or the second pressure information transmitted by the fiber optic parsing module or the piezoelectric parsing module as the target pressure information. When the fiber optic interface 40 and piezoelectric interface 50 of the pressure receiver and transmitter are respectively connected to the fiber optic pressure acquisition component or the piezoelectric pressure acquisition component, the main control circuit 10 can select one of the acquired first pressure information and second pressure information as the target pressure information by default or according to the measurement mode set by the user. For example, the main control circuit 10 is specifically used to receive the first pressure information sent by the fiber optic resolution module and the second pressure information and proximal pressure information sent by the piezoelectric resolution module when the fiber optic interface 40 is connected to the fiber optic pressure acquisition component, the piezoelectric interface 50 is connected to the piezoelectric pressure acquisition component, and the proximal pressure interface is connected to the IBP sensor (i.e., intravascular blood pressure monitoring sensor). The first pressure information is used as the target pressure information (i.e., distal pressure information), and the distal pressure information and proximal pressure information are sent to the host device. That is to say, when both the fiber optic pressure sensor and the piezoelectric pressure sensor are connected to the pressure receiver and transmitter, the pressure receiver and transmitter can prioritize processing the signals of the fiber optic pressure sensor and the IBP sensor and package them for transmission to the host device. Correspondingly, the pressure receiver and transmitter can also directly ignore the signal from the piezoelectric pressure sensor to reduce power consumption; or, the second pressure information from the piezoelectric resolution module can be discarded.

[0067] Correspondingly, when the fiber optic interface 40 and piezoelectric interface 50 of the pressure receiver and transmitter are respectively connected to the fiber optic pressure acquisition component or the piezoelectric pressure acquisition component, the main control circuit 10 can also directly send the first pressure information and the second pressure information together as target pressure information (such as remote pressure information) to the host device; for example, the main control circuit 10 can send the first pressure information and the second pressure information together as remote pressure information to the host device, so that the host device can determine the remote pressure required to calculate FFR based on the acquired first pressure information and second pressure information, thereby improving the accuracy of remote pressure measurement.

[0068] In this embodiment, the specific communication connection method between the pressure receiver / transmitter and the host device can be configured by the designer according to the usage scenario and user needs. For example, the pressure receiver / transmitter can be connected to the host device via a wired communication connection. Figure 6As shown, the pressure receiver and transmitter can communicate with the host device via a USB cable, meaning the pressure receiver and transmitter can also be equipped with a USB interface connected to the main control circuit 10. The pressure receiver and transmitter can also wirelessly connect with the host device to further reduce the coupling between the pressure receiver and transmitter and the host device, improving the device's mobility and flexibility. Specifically, the pressure receiver and transmitter can also include a wireless communication component (such as a Bluetooth communication component) for transmitting target pressure information to the host device via wireless communication. For example, the main control circuit 10 can use the connected wireless communication component to wirelessly transmit remote and near-remote pressure information to the host device.

[0069] Furthermore, the pressure receiver and transmitter provided in this embodiment may also include a built-in battery (such as a lithium battery) for powering the main control circuit 10, the piezoelectric resolution module, and the fiber optic resolution module installed in the fiber optic resolution module slot 20. That is, the pressure receiver and transmitter can operate using the power supply of the built-in battery, thereby reducing the time spent connected to a power source during use.

[0070] Correspondingly, such as Figure 6 As shown, the device for acquiring blood flow pressure information provided in this embodiment may further include a power adapter connected to the pressure receiver and transmitter for powering the pressure receiver and transmitter, such as charging the built-in battery in the pressure receiver and transmitter, and powering the main control circuit 10, the fiber optic resolution module and the piezoelectric resolution module in the pressure receiver and transmitter.

[0071] In some embodiments, the device for acquiring blood flow pressure information provided in this embodiment may further include an IBP sensor connected to a pressure receiver and transmitter, a piezoelectric pressure acquisition component, and / or a fiber optic pressure acquisition component.

[0072] In this embodiment, the present invention, through the setting of the fiber optic resolution module slot 20 and the piezoelectric resolution module slot 30, can flexibly configure the device functions according to customer needs; through the setting of the fiber optic interface 40 and the piezoelectric interface 50, it can be compatible with piezoelectric pressure sensors and fiber optic pressure sensors, improving the applicability of the device, enabling medical staff to switch to the required sensor for pressure detection according to the actual needs of the patient during surgery, effectively reducing the learning cost for medical staff; and through the modular design of the pressure receiver and transmitter and the host device, the mobility flexibility of the device is improved.

[0073] Corresponding to the above device embodiments, this utility model embodiment also provides a system for acquiring blood flow pressure information. The system for acquiring blood flow pressure information described below and the device for acquiring blood flow pressure information described above can be referred to in correspondence.

[0074] A system for acquiring blood flow pressure information includes: a host device and a device for acquiring blood flow pressure information as provided in the above embodiments.

[0075] In this embodiment, the host device can specifically be the host of the IVUS device.

[0076] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the systems disclosed in the embodiments, since they correspond to the devices disclosed in the embodiments, the descriptions are relatively simple; relevant parts can be referred to the device section.

[0077] The above provides a detailed description of the device and system for acquiring blood flow pressure information provided by this utility model. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A device for acquiring blood flow pressure information, characterized in that, include: A pressure receiver and transmitter; wherein the pressure receiver and transmitter includes: a main control circuit, an optical fiber resolution module slot, a piezoelectric resolution module slot, an optical fiber interface, and a piezoelectric interface; The fiber optic resolution module slot is used to install a fiber optic resolution module and connects to a fiber optic pressure acquisition component through the fiber optic interface, enabling the fiber optic resolution module to acquire first pressure information acquired by the fiber optic pressure sensor in the fiber optic pressure acquisition component; the piezoelectric resolution module slot is used to install a piezoelectric resolution module and connects to a piezoelectric pressure acquisition component through the piezoelectric interface, enabling the piezoelectric resolution module to acquire second pressure information acquired by the piezoelectric pressure sensor in the piezoelectric pressure acquisition component. The main control circuit is used to communicate with the host device and send target pressure information to the host device; wherein, the target pressure information includes the pressure information corresponding to the first pressure information and / or the second pressure information.

2. The device for acquiring blood flow pressure information according to claim 1, characterized in that, The device also includes the fiber optic pressure acquisition component and the piezoelectric pressure acquisition component; The fiber optic pressure sensor is mounted on the fiber optic pressure guide wire in the fiber optic pressure acquisition assembly, and the piezoelectric pressure sensor is mounted on the piezoelectric pressure microcatheter in the piezoelectric pressure acquisition assembly; or, the fiber optic pressure sensor is mounted on the fiber optic pressure microcatheter in the fiber optic pressure acquisition assembly, and the piezoelectric pressure sensor is mounted on the piezoelectric pressure guide wire in the piezoelectric pressure acquisition assembly.

3. The device for acquiring blood flow pressure information according to claim 2, characterized in that, The fiber optic pressure acquisition component includes: an intelligent fiber optic connector, the fiber optic pressure guide wire, and the fiber optic pressure sensor. The fiber optic pressure sensor is used to collect the first pressure information; The optical fiber pressure guide wire is used to transmit the first pressure information; The intelligent fiber optic connector is used to connect the fiber optic pressure guide wire and the fiber optic interface to transmit the first pressure information to the fiber optic interface.

4. The device for acquiring blood flow pressure information according to claim 3, characterized in that, The fiber optic pressure acquisition component also includes: The fiber optic handle is used to connect the fiber optic pressure guide wire and the fiber optic cable to transmit the first pressure information; wherein, the smart fiber optic connector is used to connect the fiber optic cable and the fiber optic interface.

5. The device for acquiring blood flow pressure information according to claim 3, characterized in that, The intelligent fiber optic connector is provided with a first memory, which is used to store the guide wire information of the fiber optic pressure guide wire; The fiber optic interface includes an in-situ detection device and an information reading device; the in-situ detection device is used to detect the in-situ connection status of the fiber optic pressure acquisition component; the in-situ connection status is either in-situ or out-of-situ; the information reading device is used to read the guide wire information stored in the first memory when the fiber optic pressure acquisition component is in the in-situ state, so that the host device can use the guide wire information for signal processing.

6. The device for acquiring blood flow pressure information according to claim 2, characterized in that, The piezoelectric pressure acquisition component includes a conduit connector, the piezoelectric pressure microcatheter, and the piezoelectric pressure sensor; The piezoelectric pressure sensor is used to collect the second pressure information; The piezoelectric pressure microcatheter is used to transmit the second pressure information; The conduit connector is used to connect the piezoelectric pressure microcatheter and the piezoelectric interface to transmit the second pressure information to the piezoelectric interface.

7. The device for acquiring blood flow pressure information according to claim 6, characterized in that, A second memory is provided on the catheter connector. The second memory is used to store the sensitivity and temperature information of the piezoelectric pressure microcatheter, so that the host device can use the sensitivity and temperature information to calibrate the second pressure information.

8. The device for acquiring blood flow pressure information according to claim 1, characterized in that, Both the first pressure information and the second pressure information are pressure information of the distal end of the blood vessel; correspondingly, the target pressure information is distal pressure information. The pressure receiver and transmitter also includes: The proximal pressure interface connected to the piezoelectric analysis module slot is used to connect to an intravascular blood pressure monitoring sensor; the piezoelectric analysis module is also used to acquire proximal pressure information collected by the intravascular blood pressure monitoring sensor. The main control circuit is specifically used to send the remote pressure information and the proximal pressure information to the host device.

9. The device for acquiring blood flow pressure information according to claim 1, characterized in that, The pressure receiver and transmitter also includes: The built-in battery is used to power the main control circuit, the piezoelectric analysis module installed in the piezoelectric analysis module slot, and the optical fiber analysis module installed in the optical fiber analysis module slot.

10. The device for acquiring blood flow pressure information according to claim 1, characterized in that, The pressure receiver and transmitter also includes: A wireless communication component is used to send the target pressure information to the host device via a wireless communication connection with the host device.

11. The apparatus for acquiring blood flow pressure information according to any one of claims 1 to 10, characterized in that, The pressure receiver and transmitter further includes: the optical fiber resolution module and / or the piezoelectric resolution module.

12. The apparatus for acquiring blood flow pressure information according to any one of claims 1 to 10, characterized in that, The pressure receiver and transmitter further includes: the optical fiber resolution module and the piezoelectric resolution module; the main control circuit is specifically used to receive first pressure information sent by the optical fiber resolution module and second pressure information sent by the piezoelectric resolution module when the optical fiber interface is connected to the optical fiber pressure acquisition component and the piezoelectric interface is connected to the piezoelectric pressure acquisition component; and to send the first pressure information as the target pressure information to the host device.

13. A system for acquiring blood flow pressure information, characterized in that, include: The host device and the device for acquiring blood flow pressure information as described in any one of claims 1 to 12.

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