Port monitoring device and port monitoring system

Abstract

The application provides a kind of infusion port monitoring device and infusion port monitoring system.The infusion port monitoring device includes passive induction chip and extracorporeal flexible sensing terminal;Passive induction chip is set in the interior of infusion port, and passive induction chip is integrated with pressure sensor, blood impedance sensor and temperature sensor;Extracorporeal flexible sensing terminal includes wireless communication module, data processing module and early warning module, wherein wireless communication module is connected with passive induction chip, for reading the running state data of infusion port, the running state data of infusion port includes pressure data, blood impedance data and temperature data;Data processing module is connected with wireless communication module, for processing running state data, and output corresponding monitoring result;Early warning module is connected with data processing module, for outputting infusion port risk early warning information according to monitoring result.The application can effectively monitor the running state of infusion port and realize risk early warning.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a port-of-care monitoring device and port-of-care monitoring system. Background Technology

[0002] A port-a-cath is a long-term implantable intravenous access device, primarily used for patients requiring long-term intravenous therapy, such as breast cancer patients undergoing long-term chemotherapy after surgery. By implanting the port-a-cath and establishing a stable intravenous access using connecting catheters, a persistent intravenous drug delivery route can be established.

[0003] Currently, the maintenance and status assessment of intravenous infusion ports in clinical practice mainly rely on regular inspections by healthcare professionals and patient feedback on abnormalities. In actual use, healthcare professionals typically determine the presence of abnormalities in the infusion port through manual observation, palpation, and the feel of the procedure during trial injections. However, this method is highly dependent on the operational experience of healthcare professionals, lacks objective data reflecting the operational status of the infusion port, makes it difficult to detect early abnormalities in a timely manner, and has a low level of automation.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0005] Based on this, the embodiments of this application provide a port monitoring device and a port monitoring system, which can effectively monitor the operating status of the port and realize risk warning.

[0006] According to some embodiments, this application provides a port-of-care monitoring device, including a passive sensing chip and an external flexible sensing terminal; The passive sensing chip is located inside the infusion port and integrates a pressure sensor, a blood impedance sensor, and a temperature sensor. The external flexible sensing terminal includes a wireless communication module, a data processing module, and an early warning module, wherein... The wireless communication module is connected to the passive sensing chip and is used to read the operating status data of the infusion port. The operating status data of the infusion port includes the pressure data measured by the pressure sensor, the blood impedance data measured by the blood impedance sensor, and the temperature data measured by the temperature sensor. The data processing module is connected to the wireless communication module and is used to process the operating status data and output the corresponding monitoring results. The early warning module is connected to the data processing module and is used to output risk warning information for the infusion port based on the monitoring results.

[0007] In some embodiments, the external flexible sensing terminal includes a flexible dressing for fixing the external flexible sensing terminal to the skin surface of a target object.

[0008] In some embodiments, the wireless communication module of the in vitro flexible sensing terminal reads the operating status data of the infusion port via NFC wireless radio frequency communication.

[0009] In some embodiments, the external flexible sensing terminal further includes an antenna coil, which is used to receive operating status data sent by the passive sensing chip and to provide radio frequency energy to the passive sensing chip.

[0010] In some embodiments, the external flexible sensing terminal further includes a display screen, which is used at least to display abnormal data in the monitoring results and / or a maintenance date countdown.

[0011] In some embodiments, the warning module includes a multi-color indicator light, which displays different indicator colors according to the level of the risk warning information of the infusion port.

[0012] In some embodiments, the data processing module is configured to: Based on the matching relationship between the pressure data measured by the pressure sensor, the blood impedance data measured by the blood impedance sensor, and the temperature data measured by the temperature sensor and preset standards, the corresponding monitoring results are output.

[0013] In some embodiments, the matching relationship includes at least one of the following four: When the pressure data is higher than the first preset pressure threshold, it is determined that there is a risk of early tube blockage or thrombosis. And / or, if the pressure data is higher than a second preset pressure threshold, it is determined that there is a risk of catheter kinking; And / or, when the temperature data is higher than a first preset temperature threshold and the blood impedance data is abnormal, it is determined that there is a risk of bag infection; And / or, if the temperature data is normal but the blood impedance data is abnormal, it is determined that there is a risk of subcutaneous edema.

[0014] According to some embodiments, this application also provides a port monitoring system, including the port monitoring device provided in the foregoing embodiments.

[0015] In some embodiments, the port monitoring system further includes a nursing workstation connected to an external flexible sensing terminal of the port monitoring device, which receives port operating status data transmitted by the external flexible sensing terminal.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application.

[0017] The embodiments of this application may have, or at least have, the following advantages: This application embodiment sets up a passive sensing chip inside the infusion port and uses pressure sensors, blood impedance sensors, and temperature sensors integrated in the passive sensing chip to collect pressure data, blood impedance data, and temperature data during the operation of the infusion port. This enables the infusion port to obtain objective detection data reflecting its own operating status. Compared with the traditional maintenance method that relies on the experience judgment of medical staff, this is beneficial to improving the accuracy of infusion port status assessment.

[0018] Furthermore, in this embodiment, a passive sensing chip for collecting data on the operating status of the infusion port is placed inside the infusion port, and an external flexible sensing terminal is used to wirelessly communicate with the passive sensing chip. This allows the external flexible sensing terminal to acquire physical parameters inside the infusion port through the patient's skin and subcutaneous tissue. This enables the sensing of the operating status of the infusion port without modifying the existing structure of the infusion port or adding invasive testing procedures. This helps reduce the monitoring burden on patients during long-term use and improves the safety of the monitoring process.

[0019] This application embodiment also generates port-of-care risk warning information through the early warning module based on the monitoring results output by the data processing module. This enables medical staff to obtain information on abnormal port-of-care status in a timely manner based on objective monitoring data, thereby reducing the risk of misjudgment caused by differences in human judgment. It is beneficial to identify potential risks such as tube blockage, infection, and thrombosis in advance, and reduce the risk of port-of-care function being affected due to untimely detection of abnormalities.

[0020] Other advantages, objectives, and features of this application will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from practice of this application. The objectives and other advantages of this application can be realized and obtained through the following description. Attached Figure Description

[0021] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the structure of a port monitoring device provided in some embodiments of this application; Figure 2A schematic diagram showing the installation location of the port monitoring device on the target object according to some embodiments of this application; Figure 3 A schematic diagram illustrating the data transmission process between the passive sensing chip and the external flexible sensing terminal in the port-of-care monitoring device provided in some embodiments of this application; Figure 4 This is a schematic diagram of the structure of an external flexible sensing terminal provided in some embodiments of this application; Figure 5 This is a schematic diagram illustrating the data transmission process in the port monitoring system provided in some embodiments of this application.

[0023] Explanation of reference numerals in the attached figures: 100. Infusion port; 110. Passive sensor chip; 120. Pipeline; 130. Port cavity; 210. External flexible sensing terminal; 211. Display screen; 212. Red indicator light; 213. Yellow indicator light; 214. Green indicator light. Detailed Implementation

[0024] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0025] Furthermore, the accompanying drawings are merely illustrative of this application and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0026] It is understood that the term "connection" in the following embodiments should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have electrical signal or data transmission with each other.

[0027] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that when the terms “comprise” and / or “comprising” are used in this specification, the presence of the stated feature, integer, step, operation, element, and / or part is established, but the presence or addition of one or more other features, integers, steps, operations, elements, parts, and / or groups is not excluded. Meanwhile, when used herein, the term “and / or” includes any and all combinations of the associated listed items.

[0028] Currently, the maintenance and status assessment of intravenous infusion ports in clinical practice mainly rely on regular inspections by healthcare professionals and patient feedback on abnormalities. In actual use, healthcare professionals typically determine the presence of abnormalities in the infusion port through manual observation, palpation, and the feel of the procedure during trial injections. However, this method is highly dependent on the operational experience of healthcare professionals, lacks objective data reflecting the operational status of the infusion port, makes it difficult to detect early abnormalities in a timely manner, and has a low level of automation.

[0029] Therefore, this application aims to provide a solution that can address the aforementioned technical problems, enabling effective monitoring of the operational status of the infusion port and providing risk warnings. Details will be elaborated in subsequent embodiments.

[0030] According to some embodiments, this application provides a port-of-care monitoring device. Please refer to... Figure 1 and Figure 2 It is understood that the infusion port monitoring device includes a passive sensing chip 110 and an external flexible sensing terminal 210.

[0031] As an example, the infusion port 100 may specifically include a venous infusion port implanted in a target subject (e.g., a patient) to provide long-term intravenous infusion access. Exemplarily, the infusion port 100 may specifically include a venous infusion port implanted in a breast cancer patient undergoing long-term chemotherapy after surgery, which can reduce the inconvenience of repeatedly establishing intravenous access and improve the convenience of drug infusion.

[0032] Please combine Figure 1 and Figure 3 It is understood that the passive sensing chip 110 is located inside the infusion port 100, and the passive sensing chip 110 integrates a pressure sensor, a blood impedance sensor, and a temperature sensor.

[0033] As an example, such as Figure 1 As shown, the passive sensing chip 110 can be set at the bottom of the internal pipe 120 of the infusion port 100 and located on the outside of the port body cavity 130, so as to detect the operating status of the internal conduit of the infusion port 100 during use.

[0034] For example, the passive sensing chip 110 may specifically include a miniature passive sensing chip. The miniature passive sensing chip is small in size, for example, smaller than a button, thereby avoiding occupying space in the port puncture septum and reducing the impact on medical staff performing routine puncture procedures with atraumatic needles.

[0035] As an example, such as Figure 2 As shown, the port-a-cath 100 can be implanted subcutaneously in the target object, at a depth of approximately 0.5cm to 1cm. A hard titanium alloy or plastic base can be installed below the port-a-cath 100. The port-a-cath monitoring device provided in this application embodiment can sense the deep physical parameters of the port-a-cath 100 through the target object's skin and subcutaneous tissue by using a passive sensing chip 110 installed inside the port-a-cath 100 and an external flexible sensing terminal 210 located outside the body.

[0036] The passive sensing chip 110 integrates a pressure sensor, a blood impedance sensor, and a temperature sensor to collect multi-dimensional operational status data during the operation of the infusion port 100.

[0037] Specifically, the pressure sensor is used to acquire pressure data within the infusion port 100 catheter. In some embodiments, the pressure sensor is implanted in the body along with the infusion port 100 via a probe end located at the connection between the outlet of the infusion port 100 and the catheter, to detect the vascular pressure within the superior vena cava catheter.

[0038] As an example, the pressure sensor may include a MEMS chip, a coil, and a packaging structure. The pressure sensor can contact the environment inside the catheter through a probe end located at the connection between the outlet of the infusion port 100 and the catheter to detect the vascular pressure inside the superior vena cava catheter.

[0039] The blood impedance sensor is used to acquire blood impedance data (also referred to as impedance data) within the infusion port 100 catheter. In some embodiments, the probe end of the blood impedance sensor is located at the connection between the outlet of the infusion port 100 and the catheter, and is implanted in the body along with the infusion port 100 to detect changes in blood impedance at the superior vena cava, thereby reflecting changes in the internal state of the infusion port 100 catheter.

[0040] A temperature sensor is used to acquire temperature data in the area near the infusion port 100. In some embodiments, the temperature sensor may be implemented using an NTC miniature thermistor, whose resistance changes with temperature to achieve temperature detection.

[0041] As an example, the aforementioned NTC miniature thermistor can be set with a corresponding temperature detection range, such as 36.3℃~40℃, and the temperature detection accuracy can reach within ±0.1℃, so as to improve the detection accuracy of temperature changes around the infusion port 100.

[0042] In some embodiments, temperature data can be combined with other data for comprehensive judgment. For example, when an increase in temperature is detected around the infusion port 100, accompanied by a sharp increase in pressure data, it can be determined that the infusion port 100 has an abnormal risk such as infection, and the corresponding monitoring results can be output.

[0043] The aforementioned pressure sensor, blood impedance sensor, and temperature sensor can acquire objective parameters such as pressure, impedance, and temperature. Compared to the traditional method of relying on the experience of medical staff to judge the status of the infusion port, this method can provide objective data support for the operational status assessment of the infusion port 100.

[0044] The external flexible sensing terminal 210 may specifically include a wireless communication module, a data processing module, and an early warning module.

[0045] The wireless communication module is connected to the passive sensing chip 110 and is used to read the operating status data of the infusion port 100. This operating status data includes pressure data measured by a pressure sensor, blood impedance data measured by a blood impedance sensor, and temperature data measured by a temperature sensor. The data processing module is connected to the wireless communication module and is used to process the operating status data and output the corresponding monitoring results. The early warning module is connected to the data processing module and is used to output risk warning information for the infusion port based on the monitoring results.

[0046] Specifically, the early warning module is installed in the external flexible sensing terminal 210 and connected to the data processing module. The data processing module processes the port-of-care operating status data, such as pressure data, blood impedance data, and temperature data, and generates corresponding port-of-care risk early warning information.

[0047] After the data processing module outputs the corresponding monitoring results, the early warning module generates port-of-care risk warning information based on the monitoring results to indicate possible abnormal conditions of the port. For example, this port-of-care risk warning information can be used to indicate port-of-care risks such as blockage, infection, and thrombosis, enabling medical staff to promptly understand possible abnormal conditions of the port.

[0048] The aforementioned infusion port monitoring device, by setting a passive sensing chip 110 inside the infusion port 100 and utilizing the pressure sensor, blood impedance sensor, and temperature sensor integrated in the passive sensing chip 110, collects pressure data, blood impedance data, and temperature data during the operation of the infusion port 100. This enables the infusion port 100 to obtain objective detection data reflecting its own operating status. Compared with the traditional maintenance method that relies on the experience judgment of medical staff, this helps to improve the accuracy of infusion port status assessment.

[0049] By collecting and analyzing multi-dimensional operational status data such as pressure data, blood impedance data, and temperature data, the operational status of the infusion port 100 can be accurately and digitally assessed, enabling changes in the status of the infusion port 100 to be recorded and analyzed in the form of objective data.

[0050] Furthermore, the aforementioned port-of-care monitoring device incorporates a passive sensing chip 110 for collecting port-of-care operational status data inside the port-of-care 100, and utilizes an external flexible sensing terminal 210 located outside the body to wirelessly communicate with the passive sensing chip 110. This allows the external flexible sensing terminal 210 to acquire physical parameters inside the port-of-care 100 through the patient's skin and subcutaneous tissue. Without modifying the existing structure of the port-of-care 100 or adding invasive testing procedures, the device can perceive the operational status of the port-of-care 100, which helps reduce the monitoring burden on patients during long-term use and improves the safety of the monitoring process.

[0051] The aforementioned port-of-care monitoring device also generates port-of-care risk warning information based on the monitoring results output by the data processing module through the early warning module. This enables medical staff to obtain information on abnormal port-of-care status in a timely manner based on objective monitoring data, thereby reducing the risk of misjudgment caused by differences in human judgment. It is beneficial to identify potential risks such as tube blockage, infection, and thrombosis in advance, and reduce the risk of port-of-care function being affected due to untimely detection of abnormalities.

[0052] In some embodiments, the port monitoring device can continuously collect data on the operating status of the port 100 based on the passive sensing chip 110, and perform dynamic analysis through the external flexible sensing terminal 210, thereby achieving continuous monitoring of the port's operating status. Compared to the traditional method of relying solely on periodic maintenance for status assessment, the aforementioned continuous dynamic monitoring method can promptly obtain the changing trends of the port 100's operating status, improving the timeliness of abnormal status detection.

[0053] The pressure, blood impedance, and temperature data collected in this embodiment can be used to reflect the operational status of the central venous catheter in the port 100. Specifically, pressure changes inside the central venous catheter reflect changes in fluid delivery resistance, blood impedance changes reflect changes in the blood environment inside the catheter, and temperature changes reflect changes in the surrounding tissue environment of the port 100. By comprehensively analyzing these multi-dimensional parameters, the patency status of the port 100 catheter can be assessed, and the risks of complications such as blockage and thrombosis can be identified in advance.

[0054] In some embodiments, when the infusion port 100 becomes blocked, the central venous catheter may no longer be usable, leading to catheter failure and potentially requiring removal and reimplantation (i.e., "port removal and reimplantation"). Therefore, monitoring the operational status of the infusion port 100 requires timely detection of abnormalities and accurate test results. This application utilizes a multi-parameter fusion detection method, including pressure, blood impedance, and temperature, to acquire data promptly when the operational status of the infusion port 100 changes.

[0055] Please see Figure 4 In some embodiments, the external flexible sensing terminal 210 can be implemented using an externally attached sensor structure. Specifically, the terminal body of the external flexible sensing terminal 210 may include a flexible printed circuit board (FPC) and a flexible electrode structure disposed on the flexible printed circuit board to improve the adhesion between the external flexible sensing terminal 210 and the skin surface of the target object.

[0056] As an example, such as Figure 4 As shown, the external flexible sensing terminal 210 may include an ultra-thin fitted shell, which is used to accommodate functional modules such as a wireless communication module, a data processing module, and an early warning module, and has breathability to improve the comfort of the target object during long-term wear.

[0057] In some embodiments, the external flexible sensing terminal 210 may specifically include a flexible dressing for fixing the external flexible sensing terminal 210 to the skin surface of a target object (e.g., a patient).

[0058] In the above embodiment, the external flexible sensing terminal 210 is located outside the target object and is attached to the skin surface of the target object by a flexible patch, so that the external flexible sensing terminal 210 can maintain a relatively stable positional relationship with the passive sensing chip 110 in the infusion port 100 set inside the target object, thereby facilitating the external flexible sensing terminal 210 to continuously read the infusion port operation status data collected by the passive sensing chip 110.

[0059] Furthermore, by attaching the external flexible sensing terminal 210 to the skin surface of the target object through a flexible dressing, the target object can continuously carry the external flexible sensing terminal 210 during daily activities, thereby achieving continuous monitoring of the infusion port's operating status.

[0060] For example, the external flexible sensing terminal 210 can be fitted to the chest wall area or upper arm area according to the patient's wearing needs, so as to meet the long-term use needs of the patient during daily activities and avoid affecting the patient's daily activities.

[0061] In some embodiments, the external flexible sensing terminal 210 can adopt an upper arm wearing structure. For example, the external flexible sensing terminal 210 can be flexibly applied to the upper arm skin surface of the target object to form an upper arm external sensor. By setting the external flexible sensing terminal 210 on the upper arm, it is convenient for the patient to wear the external flexible sensing terminal 210 continuously during daily activities and read the operating status data collected by the passive sensing chip 110 set inside the infusion port 100 via wireless communication.

[0062] It is understandable that the installation position of the external flexible sensing terminal 210 can be adaptively adjusted according to the implantation position of the infusion port 100 and the wireless communication distance requirements, so as to ensure that the external flexible sensing terminal 210 and the passive sensing chip 110 can perform stable data interaction.

[0063] As an example, the external flexible sensing terminal 210 may also include a curved, skin-friendly outer shell. The curved, skin-friendly outer shell can conform to the surface of the target object's skin and has waterproof properties to improve stability during long-term wear.

[0064] Please continue reading. Figure 3 In some embodiments, the wireless communication module of the in vitro flexible sensing terminal 210 reads the operating status data of the infusion port 100 via NFC (Near Field Communication) wireless radio frequency communication.

[0065] Specifically, the passive sensing chip 110 is a passive device that does not have its own independent power supply. Instead, it interacts with the external flexible sensing terminal 210 via NFC wireless radio frequency communication. Specifically, when it is necessary to obtain the operating status data of the infusion port 100, the external flexible sensing terminal 210 sends a radio frequency signal to the passive sensing chip 110 through its wireless communication module and reads the operating status data returned by the passive sensing chip 110.

[0066] Since the port-a-cath is typically implanted subcutaneously, in some embodiments, it can be located approximately 0.5cm to 1cm deep beneath the skin, and a rigid titanium alloy or plastic base is provided beneath it. By employing NFC wireless radio frequency communication, an external flexible sensing terminal 210 can read data collected by a passive sensing chip 110 located inside the body, enabling external sensing of the port-a-cath's operational status.

[0067] The above embodiments realize data transmission between the in vivo passive sensing chip 110 and the external flexible sensing terminal 210 through wireless radio frequency communication, avoiding the need to set up additional connection structures in the target object, thereby improving the convenience of the installation and monitoring process of the infusion port 100.

[0068] As an example, the passive sensing chip 110 can use an intermittent, low-power sampling method to detect the operating status of the infusion port 100. For instance, data can be collected according to a preset time period to reduce the energy consumption of the passive sensing chip 110.

[0069] For example, the monitoring cycle of the passive sensing chip 110 can be set to 5 minutes, and the time for a single data acquisition and analysis can be less than or equal to 0.5 seconds, thereby meeting the low-power monitoring needs of breast cancer patients during long-term wear.

[0070] Please continue reading. Figure 3 In some embodiments, the external flexible sensing terminal 210 may also include an antenna coil, which is used to receive operating status data sent by the passive sensing chip 110 and to provide radio frequency energy to the passive sensing chip 110.

[0071] Specifically, the antenna coil can be disposed inside the external flexible sensing terminal 210 and used to conduct wireless radio frequency communication with the passive sensing chip 110 disposed inside the infusion port 100, so as to realize data interaction between the external flexible sensing terminal 210 and the passive sensing chip 110.

[0072] As an example, such as Figure 3 As shown, the antenna coil may include a loop antenna coil, but is not limited to this. The antenna coil may also adopt other structural forms that enable wireless radio frequency communication and radio frequency power transmission.

[0073] In the above embodiments, by using an externally mounted antenna coil to communicate with a passive sensing chip 110 inside the port 100 via radio frequency, it is possible to avoid setting up additional power supply structures or external connection lines inside the patient's body and achieve non-contact acquisition of internal status data of the port 100.

[0074] With the above structure, the antenna coil set in the external flexible sensing terminal 210 provides the radio frequency energy required for the operation of the passive sensing chip 110 on the one hand, and receives the operating status data collected by the passive sensing chip 110 on the other hand, thereby realizing data interaction between the passive sensing chip 110 and the external flexible sensing terminal 210, and improving the convenience and safety of the infusion port 100 monitoring process.

[0075] As an example, such as Figure 3 As shown, the external flexible sensing terminal 210 may further include a rectifier circuit, which may include a rectifier bridge and a voltage regulator capacitor. The rectifier circuit can be used to convert the radio frequency AC energy received by the antenna coil into DC power and provide the power required for operation to the sensors and control core inside the passive sensing chip 110, thereby enabling the passive sensing chip 110 to acquire pressure data, blood impedance data, and temperature data without the need for an independent power supply.

[0076] It should be noted that the control core, which is the internal control unit of the chip, is used to collect and control the detection signals collected by the pressure sensor, blood impedance sensor and temperature sensor, and send the corresponding operating status data to the external flexible sensing terminal 210 through radio frequency wireless transmission.

[0077] Through the above embodiments, the antenna coil in the external flexible sensing terminal 210 provides radio frequency energy to the passive sensing chip 110 and receives the operating status data returned by the passive sensing chip 110, which can realize the wireless acquisition of the internal status data of the port 100. At the same time, it avoids setting up an additional power supply structure inside the port 100, which is conducive to improving the safety and ease of use of the port monitoring device after implantation.

[0078] Please continue reading. Figure 4 In some embodiments, the external flexible sensing terminal 210 may further include a display screen 211. The display screen 211 may be used to display at least abnormal data in the monitoring results and / or a maintenance date countdown.

[0079] Specifically, such as Figure 4 As shown, the display screen 211 is mounted on the external flexible sensing terminal 210 and connected to the data processing module. After analyzing and processing the acquired pressure data, blood impedance data, and temperature data, the data processing module sends the corresponding monitoring results to the display screen 211 so that patients or medical staff can view the current status of the infusion port 100.

[0080] As an example, such as Figure 4As shown, when the data processing module determines that the infusion port 100 is in an abnormal state based on the operating status data, the display screen 211 can display the corresponding abnormal data. For example, the display screen 211 can display information such as abnormal pressure data, abnormal blood impedance data, or abnormal temperature data, so that patients or medical staff can intuitively obtain the current operating status of the infusion port 100.

[0081] Please continue reading. Figure 4 The display screen 211 can also be used to display a countdown to the maintenance date of the infusion port 100. Specifically, the external flexible sensing terminal 210 can calculate the maintenance time of the next infusion port 100 based on the preset maintenance cycle and the current maintenance time, and display the remaining maintenance time on the display screen 211 to remind the patient to have the infusion port maintained in a timely manner.

[0082] As an example, a maintenance date countdown can be used to assist patients in daily care management, avoid delays in port maintenance due to patients forgetting the maintenance time, and improve the management convenience of port 100 during long-term use.

[0083] Furthermore, by setting a display screen 211 on the external flexible sensing terminal 210, the operating status data and maintenance information of the infusion port 100 can be directly presented outside the patient's body, enabling the patient to understand the relevant status of the infusion port 100 in a timely manner, and at the same time facilitating medical staff to carry out nursing management based on the monitoring results.

[0084] The above embodiments utilize the display screen 211 mounted on the external flexible sensing terminal 210 to visualize the operating status data and maintenance information of the infusion port 100, thereby further enhancing the convenience of using the infusion port 100. Furthermore, by combining operating status data monitoring and maintenance time reminder functions, the problem of forgetting or delaying maintenance caused by patients' reliance on remembering maintenance times during traditional infusion port maintenance can be reduced, effectively lowering the incidence of complications caused by untimely maintenance and improving patient quality of life and clinical nursing efficiency.

[0085] In some embodiments, the warning module may specifically include a multi-color indicator light. The multi-color indicator light can display different indicator colors according to the level of risk warning information of the infusion port.

[0086] Specifically, the multi-color indicator light can output different visual prompts based on the level of risk warning information received from the infusion port, so that patients or medical staff can intuitively obtain the current operating status of the infusion port 100.

[0087] The following is combined with Figure 4 The following explanation uses a multi-color indicator light, which includes multiple indicator lights with different indicator colors, as an example.

[0088] In some embodiments, such as Figure 4 As shown, the multi-color indicator light may specifically include a red indicator light 212, a yellow indicator light 213, and a green indicator light 214, but is not limited to these. In this embodiment, red, yellow, and green are used as examples for illustration.

[0089] Specifically, when the data processing module determines that the infusion port 100 is operating normally, the green indicator light 214 illuminates to indicate that the infusion port 100 is currently operating normally; when the data processing module determines that the infusion port 100 has abnormal data or potential risks that require attention, the yellow indicator light 213 illuminates to prompt the patient or medical staff to pay further attention; when the data processing module determines that the infusion port 100 has urgent abnormal data or potential risks, the red indicator light 212 illuminates to prompt the patient or medical staff to take appropriate measures in a timely manner.

[0090] As an example, such as Figure 4 As shown, the external flexible sensing terminal 210 may specifically include a display area on the surface and an indicator light area on one side of the display area. The display screen 211 displays abnormal data in the monitoring results and / or maintenance date countdown, and the multi-color indicator light indicates the risk level.

[0091] It should be noted that in other embodiments, the multi-color indicator light can also be implemented using a single indicator light, which can display different light colors according to different levels of risk warning information for the infusion port. For example, the single indicator light can switch between displaying green, yellow, or red lights according to changes in the risk level, in order to provide alerts for different risk levels.

[0092] By setting up multi-color indicator lights, patients can understand the level of risk warning information for the infusion port without reading complex data parameters; at the same time, medical staff can also further assess the status of the infusion port 100 by combining the abnormal data in the monitoring results displayed on the display screen 211.

[0093] In some embodiments, the data processing module can output corresponding monitoring results based on the matching relationship between the pressure data measured by the pressure sensor, the blood impedance data measured by the blood impedance sensor, and the temperature data measured by the temperature sensor and preset standards.

[0094] Specifically, the data processing module can pre-store preset standards corresponding to the operating status of the infusion port, and match the pressure data, blood impedance data and temperature data collected by the passive sensing chip 110 with the corresponding preset standards to determine the current operating status of the infusion port 100.

[0095] In the above embodiments, the port monitoring device can monitor the port 100 based on multi-dimensional operating status data such as pressure, blood impedance and temperature. Compared with the method of judging the port status by human experience alone, it improves the objectivity and accuracy of identifying abnormal port status.

[0096] In some embodiments, the matching relationship includes at least one of the following four: The first method involves determining the risk of early tube blockage or thrombosis when the pressure data exceeds a first preset pressure threshold.

[0097] The second approach is to determine the risk of catheter kinking if the pressure data exceeds a second preset pressure threshold.

[0098] The third approach is to determine the risk of cyst bag infection when the temperature data is higher than the first preset temperature threshold and the blood impedance data is abnormal.

[0099] The fourth approach is to determine the risk of subcutaneous edema when the temperature data is normal but the blood impedance data is abnormal.

[0100] To illustrate the matching relationship more clearly, the following will provide further explanation with reference to some embodiments.

[0101] In some embodiments, when the pressure data measured by the pressure sensor is higher than a first preset pressure threshold, the data processing module can determine that there is an early risk of tube blockage or thrombosis in the infusion port and output the corresponding monitoring results.

[0102] Specifically, under normal maintenance conditions, the fluid flow resistance inside the infusion port 100 remains relatively stable. When early blockage or thrombosis occurs inside the catheter, the fluid flow resistance increases, leading to a rise in internal pressure within the infusion port 100. Therefore, by monitoring changes in the internal pressure of the infusion port 100, early identification of the risk of blockage or thrombosis can be achieved.

[0103] As an example, in some embodiments, the first preset pressure threshold can be set to 12 cmH2O (cm water column). When the pressure data exceeds 12 cmH2O, the data processing module can determine that there is an early risk of catheter blockage or thrombosis and output the corresponding monitoring results. However, the first preset pressure threshold is not limited to the above value and can be adaptively adjusted according to the patient's condition and the actual usage conditions of the infusion port 100.

[0104] In some embodiments, when the pressure data measured by the pressure sensor is higher than the second preset pressure threshold, the data processing module can determine that there is a risk of catheter kinking and output the corresponding monitoring results.

[0105] Specifically, when the infusion port 100 catheter is bent or compressed, the internal fluid passage of the catheter is obstructed, causing an abnormal increase in internal pressure. Therefore, by setting a second preset pressure threshold, abnormalities in the catheter's structural condition can be identified, prompting the patient or medical staff to check the catheter's position.

[0106] In some embodiments, the first preset pressure threshold may be greater than the second preset pressure threshold to distinguish between the risk of early catheter occlusion or thrombosis and the risk of catheter kinking.

[0107] In some embodiments, when the temperature data is higher than a first preset temperature threshold and the blood impedance data is abnormal, the data processing module can determine that there is a risk of bag infection and output the corresponding monitoring results.

[0108] Specifically, when infection occurs in the tissue surrounding the port 100, the local tissue temperature may rise. Simultaneously, due to factors such as inflammatory response and changes in tissue fluid, the impedance parameters of the fluid environment surrounding the port 100 may change. Therefore, by combining temperature data and blood impedance data for comprehensive assessment, the accuracy of identifying the risk of port infection can be improved.

[0109] In some embodiments, when the temperature data is normal but the blood impedance data is abnormal, the data processing module can determine that there is a risk of subcutaneous edema and output the corresponding monitoring results.

[0110] Specifically, when subcutaneous edema occurs around the infusion port 100, although the local temperature may not show a significant increase, the accumulation of tissue fluid causes changes in local electrical properties, resulting in abnormal blood impedance data. Therefore, by comprehensively assessing blood impedance data in conjunction with temperature data, the accuracy of subcutaneous edema risk identification can be improved.

[0111] As an example, the normal range for blood impedance data can be set to 300Ω~1500Ω. When the blood impedance data exceeds this range, the data processing module can determine that the blood impedance data is abnormal. However, the impedance range is not limited to the above values ​​and can be adaptively adjusted according to different patient conditions, infusion port structures, and testing environments.

[0112] In some embodiments, when blood impedance data rapidly increases from the normal range to above 1500Ω within a short period of time, the data processing module can determine that the blood impedance data has undergone abnormal changes. As an example, when the above-mentioned abnormal changes occur repeatedly within a preset time period, such as exceeding the range more than twice within three days, it can indicate that there is a risk of infection or blockage in the infusion port 100, so that medical staff can conduct further examinations in a timely manner.

[0113] In some embodiments, the data processing module can perform comprehensive analysis based on pressure data measured by the pressure sensor, blood impedance data measured by the blood impedance sensor, and temperature data measured by the temperature sensor, and output corresponding monitoring results. For example, under normal maintenance conditions, when the pressure data, temperature data, and blood impedance data are all within the normal range, a good monitoring result can be output. When the pressure data increases, it can indicate an early risk of catheter occlusion / thrombosis or catheter kinking; when the temperature data increases and the blood impedance data is abnormal, it can indicate a risk of pocket infection; when the temperature data is normal but the blood impedance data is abnormal, it can indicate a risk of subcutaneous edema.

[0114] In the above embodiments, by establishing a matching relationship between pressure data, temperature data, and blood impedance data and different monitoring results, risk identification of infusion ports based on objective detection data is achieved. Compared with the traditional method of relying on the experience of medical staff to judge the status of infusion ports, the above embodiments can reduce the risk of misjudgment caused by differences in human judgment, which is conducive to more accurate identification of potential risks such as tube blockage, infection, and thrombosis, and reduces the risk of infusion port function being affected due to untimely detection of abnormalities.

[0115] By continuously monitoring pressure, blood impedance, and temperature data, early changes in the risk of thrombosis or infection can be identified. For example, in some cases, the port-of-care monitoring device can output thrombosis or infection risk warnings 24 to 48 hours in advance, allowing healthcare professionals to take timely further care measures.

[0116] Based on the same inventive concept, this application also provides a port-of-care monitoring system. This port-of-care monitoring system includes the port-of-care monitoring device provided in the foregoing embodiments. Therefore, all the technical effects achievable by the foregoing port-of-care monitoring device can also be achieved by this port-of-care monitoring system, and will not be described in detail here.

[0117] Please see Figure 5 In some embodiments, the port-of-care monitoring system may also include a nursing workstation. The nursing workstation may be connected to the external flexible sensing terminal 210 of the port-of-care monitoring device and receive the operational status data of the port-of-care 100 transmitted by the external flexible sensing terminal 210.

[0118] Specifically, after acquiring the operational status data of the infusion port 100, the external flexible sensing terminal 210 can send the operational status data to the nursing workstation. After receiving the operational status data, the nursing workstation can centrally manage the status of the infusion port 100 corresponding to the patient, so that medical staff can view the operational status of the infusion port 100.

[0119] In some embodiments, the nursing workstation can receive port-of-care operating status data, including pressure data, blood impedance data, and temperature data, and, in conjunction with the monitoring results output by the port-of-care monitoring device, assess whether there is an abnormal condition in the port-of-care 100.

[0120] By setting up a nursing workstation, medical staff can obtain the operational status of the infusion port 100 without relying on patients' active descriptions or regular check-ups, thereby improving the timeliness of infusion port nursing management.

[0121] For example, for breast cancer patients who require long-term chemotherapy after surgery, the infusion port 100 has a long usage period and patients may have reduced immunity. Continuous management of the infusion port 100's operational status through a nursing workstation helps medical staff to promptly identify abnormal data and intervene based on the monitoring data. This achieves data connection between the in-hospital management and home care of cancer patients throughout their entire life cycle, providing support for status assessment and nursing management during the long-term use of the infusion port.

[0122] Furthermore, by transforming port-of-care monitoring from traditional periodic follow-up examinations to daily status awareness and remote nursing management, the pressure on patients to frequently return for follow-up due to concerns about port-of-care abnormalities can be reduced, thereby improving postoperative quality of life and reducing loss to follow-up due to fear of follow-up.

[0123] In some embodiments, such as Figure 5 As shown, the port-of-care monitoring system may include an external non-invasive monitoring patch, a nursing workstation, and an electronic data panel. The external non-invasive monitoring patch corresponds to the external flexible sensing terminal 210 provided in the aforementioned embodiment, used for wireless communication with the passive sensing chip 110 disposed inside the port-of-care 100, and for acquiring operational status data collected by the passive sensing chip 110.

[0124] Specifically, after receiving the operating status data sent by the passive sensing chip 110, the in vitro flexible sensing terminal 210 can perform signal rectification, analog-to-digital conversion and data preprocessing on the operating status data to obtain infusion port operating status data suitable for subsequent analysis and processing.

[0125] The operational status data obtained after the aforementioned processing can be transmitted to the nursing workstation and displayed on an electronic data panel, allowing healthcare professionals to view the operational status information of the infusion port 100. In some embodiments, the electronic data panel can display central venous catheter pressure data, real-time impedance data, and local temperature data, enabling healthcare professionals to assess the operational status of the infusion port 100 based on multi-dimensional monitoring data.

[0126] In some embodiments, the nursing workstation can also analyze the received pressure data, impedance data, and temperature data to make a comprehensive judgment on the current operating status of the infusion port 100.

[0127] In some embodiments, the nursing workstation can continuously monitor changes in pressure within the central venous catheter. When a sustained increase in central venous catheter pressure is detected, exceeding a preset pressure threshold, it can be determined that the infusion port 100 poses a risk of blockage or infection, and corresponding risk warning information can be output. As an example, when the central venous pressure (CVP) continuously rises to greater than 12 cmH2O, it can indicate an abnormality in the infusion port 100.

[0128] In some embodiments, the nursing workstation can monitor changes in blood impedance within the superior vena cava catheter using real-time blood impedance data (hereinafter referred to as real-time impedance data). When a significant increase in blood impedance is detected within a short period, pressure data can be used to further determine whether there is a risk of blockage in the infusion port 100. As an example, excluding the influence of factors such as catheter kinking, a rapid increase in real-time impedance data from approximately 500Ω within the normal range to above 1500Ω may indicate an abnormality in the infusion port 100.

[0129] In some embodiments, for local temperature data, the nursing workstation can determine whether there is an abnormality based on the temperature changes in the area surrounding the infusion port 100. When a local temperature is detected to be higher than a preset temperature value and continues to rise, an infection risk warning message can be output. As an example, when the local temperature is higher than 37.5°C and continues to rise, or when the body temperature exceeds 38°C for two consecutive days, an abnormality in the infusion port 100 can be indicated.

[0130] The nursing workstation can also analyze the received pressure data, blood impedance data, and temperature data, and generate corresponding port-of-care risk warning information based on preset judgment conditions. It is understood that the preset judgment conditions are the same as the judgment criteria used by the data processing module in the aforementioned embodiments when outputting monitoring results based on pressure data, blood impedance data, and temperature data; details can be found in the relevant descriptions in the aforementioned embodiments, and will not be repeated here.

[0131] In some embodiments, when the system detects a high-risk condition, it can output a red alarm message to indicate that the infusion port 100 may be at high risk of blockage or early infection. Simultaneously, the system can upload, record, and push the detection data to the nursing station so that medical staff can promptly obtain information on changes in the patient's infusion port 100's operational status.

[0132] In the description of this specification, references to terms such as "some embodiments," "as an example," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0133] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features of the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0134] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A port-of-care monitoring device, characterized in that, Including passive sensing chips and external flexible sensing terminals; The passive sensing chip is located inside the infusion port and integrates a pressure sensor, a blood impedance sensor, and a temperature sensor. The external flexible sensing terminal includes a wireless communication module, a data processing module, and an early warning module, wherein... The wireless communication module is connected to the passive sensing chip and is used to read the operating status data of the infusion port. The operating status data of the infusion port includes the pressure data measured by the pressure sensor, the blood impedance data measured by the blood impedance sensor, and the temperature data measured by the temperature sensor. The data processing module is connected to the wireless communication module and is used to process the operating status data and output the corresponding monitoring results. The early warning module is connected to the data processing module and is used to output risk warning information for the infusion port based on the monitoring results.

2. The port monitoring device according to claim 1, characterized in that, The external flexible sensing terminal includes a flexible dressing, which is used to fix the external flexible sensing terminal to the skin surface of the target object.

3. The port monitoring device according to claim 1, characterized in that, The wireless communication module of the in vitro flexible sensing terminal reads the operating status data of the infusion port via NFC wireless radio frequency communication.

4. The port monitoring device according to claim 3, characterized in that, The external flexible sensing terminal also includes an antenna coil, which is used to receive the operating status data sent by the passive sensing chip and to provide radio frequency energy to the passive sensing chip.

5. The port monitoring device according to claim 1, characterized in that, The external flexible sensing terminal also includes a display screen, which is used to display at least the abnormal data in the monitoring results and / or the maintenance date countdown.

6. The port monitoring device according to claim 1, characterized in that, The early warning module includes a multi-color indicator light, which displays different indicator colors according to the level of the risk warning information of the infusion port.

7. The port monitoring device according to any one of claims 1 to 6, characterized in that, The data processing module is configured as follows: Based on the matching relationship between the pressure data measured by the pressure sensor, the blood impedance data measured by the blood impedance sensor, and the temperature data measured by the temperature sensor and preset standards, the corresponding monitoring results are output.

8. The port monitoring device according to claim 7, characterized in that, The matching relationship includes at least one of the following four: When the pressure data is higher than the first preset pressure threshold, it is determined that there is a risk of early tube blockage or thrombosis. And / or, if the pressure data is higher than a second preset pressure threshold, it is determined that there is a risk of catheter kinking; And / or, when the temperature data is higher than a first preset temperature threshold and the blood impedance data is abnormal, it is determined that there is a risk of bag infection; And / or, if the temperature data is normal but the blood impedance data is abnormal, it is determined that there is a risk of subcutaneous edema.

9. A port-of-care monitoring system, characterized in that, Includes the port monitoring device as described in any one of claims 1 to 8.

10. The port monitoring system according to claim 9, characterized in that, The port-of-care monitoring system also includes a nursing workstation, which is connected to the external flexible sensing terminal of the port-of-care monitoring device and receives the port-of-care operating status data transmitted by the external flexible sensing terminal.

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