Medical pressurizing bag multi-parameter monitoring and multi-terminal cooperation system for interventional operation

Abstract

The invention discloses a medical pressurizing bag multi-parameter monitoring and multi-terminal cooperation system for an interventional operation, and belongs to the technical field of interventional operation medical instruments. The system comprises a parameter acquisition module, a data transmission module and a multi-terminal display module. The parameter acquisition module is used for acquiring residual liquid, pressure of a pressurizing bag and liquid dripping speed data in real time through a high-precision weighing unit integrated on a hanging hook, a pressure sensing unit arranged in an inflating air pipe and a non-contact photoelectric dripping speed sensing unit clamped and attached to a Murphy's dropper; the data transmission module adopts a mode of combining wired summarization and wireless Bluetooth transmission, summarizes data through a master-slave architecture, and transmits the data through a lead wall of a catheter chamber by using Bluetooth 5.0; the multi-terminal display module comprises an anti-reflection main display arranged in the view of an operator and an auxiliary display arranged on a nurse workbench, and parameter synchronous display and abnormity early warning are achieved. According to the invention, the problems of state monitoring lagging of the pressurizing bag, distraction of the operator and low medical care cooperation efficiency in the operation are solved, and the operation safety and efficiency are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of interventional surgery medical instruments and technology, in particular to an intelligent monitoring and collaborative management system for an interventional surgery special medical arterial pressure bag based on an Internet of Things architecture, which solves the problems of scattered attention of operators, low efficiency of team collaboration and lagging risk warning in interventional surgery through multi-parameter fusion monitoring and multi-terminal collaborative interaction of the liquid residual volume, pressure and liquid drop rate of the pressure bag, and improves the safety and efficiency of the surgery. BACKGROUND

[0002] In neurointervention and coronary intervention and other interventional surgeries, the arterial pressure bag, as a key auxiliary device, its main function is to overcome the pressure in the artery by applying external pressure to the built-in liquid container (such as a heparin-containing saline bag), to deliver liquid to the artery at a stable drop rate and pressure, thereby achieving flushing of the interventional surgery pipeline and blood vessels, preventing blood clotting and thrombus formation, and ensuring the smooth progress of the surgery. The pressure of the pressure bag, the residual volume of the built-in liquid, and the drop rate of the liquid directly affect the flushing effect of the interventional surgery pipeline and blood vessels, and thus affect the effectiveness and safety of the surgery.

[0003] The arterial pressure bag currently used on the market (such as the quantitative and constant pressure improved arterial pressure bag disclosed in Chinese Patent Application No. CN202320958899.2, the infusion pressure bag disclosed in Chinese Patent Application No. CN201320563136.4, and the infusion pressure bag disclosed in Chinese Patent Application No. CN200920307010.4) is composed of a pressure bag, a pressure monitoring device, an inflation tube, an inflation cylinder or an inflation balloon. During use, the pressure of the pressure bag is displayed by the mechanical pressure monitoring device, the liquid drop rate is observed by the Ringer's tube drop rate of the infusion tube, and the liquid residual volume is observed from the side of the pressure bag.

[0004] However, the existing technology has the following specific pain points in the interventional surgery scenario: 1. During the surgery, the attention of the operator and the assistant is mainly focused on the display in the catheter room and the interventional operation, and it is difficult to continuously focus on the state of the pressure bag located at the tail of the operating table. In addition, since the interventional surgery requires fluoroscopy X-ray, the operating nurse usually works outside the catheter room and cannot directly observe the liquid residual volume of the pressure bag, the pressure of the pressure bag, and the drop rate of the liquid; 2. The interventional surgery has very high requirements for "liquid continuity and drop rate stability", and if the pressure bag has abnormalities (such as insufficient residual volume, uncontrolled pressure or drop rate), a thrombus can be formed in a short time. If the abnormality is discovered manually, it may lead to interruption of the surgery, which seriously threatens the safety of the patient; 3. The surgeon needs to divert some of their attention to monitor the pressure bag's status, affecting their focus on the core surgical procedures and indirectly increasing surgical risks. Nurses cannot observe the pressure bag's status in real time, making it difficult to prepare for fluid changes in advance. Usually, the surgeon needs to discover abnormalities and alert the nurse to go to the catheterization lab for handling, which disrupts the surgical rhythm and affects teamwork efficiency. Summary of the Invention

[0005] This invention aims to address the problems of insufficient real-time monitoring, poor information exchange, and low team collaboration efficiency in existing interventional surgical procedures using pressure bags. Specifically, it includes: achieving accurate and real-time monitoring of the remaining fluid volume, internal pressure, and fluid drip rate of the pressure bag in surgical scenarios; synchronizing the monitoring data to the surgical area (within the surgeon's field of vision) and outside the catheterization lab (nurse's operating area) to avoid distraction of the surgeon; and enabling nurses to monitor the remaining fluid volume and pressure in real time, facilitating advance preparation, coordinating the timing of fluid replacement, and ensuring the continuity of the surgery.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This invention provides an intelligent interventional surgical medical pressure bag monitoring system, including a parameter acquisition module, a data transmission module, and a multi-terminal display module. The overall system architecture is as follows: Figure 1 , Figure 2 As shown.

[0007] The core innovation of this invention lies in: 1. Scenario-based sensor integration solution: For interventional surgical environments, a high-precision weighing module is innovatively integrated below the suspension hook, a pressure sensor is built-in and sealed in the inflation tube, and a non-contact photoelectric sensor is used in the Mofeld tube, which enables accurate acquisition of multiple parameters without interfering with the original surgical procedure and the surgeon's observation.

[0008] 2. System-level low-power collaborative and penetrating transmission solution: Through the "master-slave power supply and data aggregation" architecture (with the pressure bag pressure acquisition unit as the master, powering other units and aggregating data), the complexity and power consumption of independent modules are reduced; and Bluetooth 5.0 (long battery life and wall penetration version) protocol is specially selected to solve the signal isolation problem of the lead protective wall in the catheterization lab, realizing reliable transmission across space.

[0009] 3. Cross-terminal human-computer interaction and collaborative early warning logic: A dual-screen off-site display and status linkage mechanism was designed. The monitor in the operating area is placed in the surgeon's golden field of vision, and anti-reflective design and color coding are used to achieve interference-free monitoring; the monitor outside the catheterization lab gives nurses the right to be informed remotely in real time, thereby changing the lagging collaborative process of "surgeon discovery - call - nurse response" and reshaping it into a proactive collaborative process of "nurse early warning - preparation - surgeon confirmation".

[0010] The parameter acquisition module is used for real-time acquisition of key parameters of the pressurizing bag, including a liquid residual amount acquisition unit, a pressurizing bag pressure acquisition unit and a liquid drop speed acquisition unit.

[0011] The liquid residual amount acquisition unit adopts a high-precision weighing module integrated below a pressurizing bag hanging hook, calculates and outputs liquid residual amount data according to the initial liquid total amount and initial weight by real-time monitoring of the total weight of the pressurizing belt (containing liquid); The pressurizing bag pressure acquisition unit is a pressure sensor built in a pressurizing belt inflation air pipe, which is in sealing connection with the air pipe and real-time acquisition of gas pressure data in the pressurizing belt. The liquid drop speed acquisition unit is a non-contact photoelectric drop speed sensor, which is clamped outside a transfusion device's Mohfus' dropper, calculates liquid drop speed by monitoring liquid drop passing rate, and does not block the direct observation of the Mohfus' dropper by the operator.

[0012] The data transmission module includes a wired summary module and a wireless Bluetooth data transmission module.

[0013] The wired summary module is connected with the pressure acquisition unit through data lines for liquid residual amount acquisition unit and liquid drop speed acquisition unit, realizes data transmission to the integrated module (built-in STM32F103 chip, waterproof and dustproof level IP67) in the pressurizing bag pressure acquisition unit for summary; and the pressure acquisition unit is built-in power supply, which supplies power for the liquid residual amount acquisition unit and the drop speed acquisition unit through the data line; The wireless Bluetooth data transmission module synchronizes data to the display terminal through Bluetooth 5.0 (long endurance + through-wall version), and the transmission distance is ≥15m (can penetrate the lead protection wall of the catheter room).

[0014] The multi-terminal display module includes a surgical area main display and a nurse workstation auxiliary display.

[0015] The surgical area main display is a 10-inch vertical screen display (anti-glare, suitable for strong light environment in surgery), which is installed on the real-time screen of the contrast machine display hanging bracket of the contrast machine display (the operator's visual angle is ≤15°), and displays "residual amount (mL), pressure (%) and drop speed (drops / minute)" in real time; all are column charts + digital display, and the normal value is displayed in green and the abnormal value is displayed in red; The nurse workstation auxiliary display is a 7-inch touch screen, which is located on the nurse workstation, synchronously displays the parameters of the surgical area main display, and has a sound alarm function.

[0016] The beneficial effects of the present application are that: since three high-precision sensors are used to collect key parameters in real time and transmit them to the surgeon's field of view golden position in real time, the risks of thrombosis or excessive infusion caused by insufficient liquid volume, abnormal pressure bag pressure or liquid drop rate are avoided, and the operation safety is improved. Since the cross-terminal display scheme is designed, the surgeon does not need to turn his head or be distracted to grasp the pressure bag state, reduce energy consumption, and improve operation concentration. The catheter chamber monitor allows nurses to predict liquid replacement needs in advance, prepare spare pressure bags in time, avoid surgery interruptions caused by temporary processing during surgery, and ensure surgery rhythm. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description.

[0018] Figure 1 The structural schematic diagram of the present embodiment is shown in the figure; Figure 2 The schematic diagram for embodying the multi-terminal position of the present embodiment is shown in the figure; Figure 3 The schematic diagram for embodying the multi-terminal position of the present embodiment is shown in the figure; Figure 2 The structural enlarged schematic diagram of the main display area of the surgery area in the present embodiment is shown in the figure.

[0019] Explanation of reference signs: In the figure: 1-pressure bag, 2-bagged liquid, 3-hanger, 4-liquid volume collection unit, 5, four-way connecting pipe, 6-pressure bag pressure collection unit, 7-mechanical pressure collection device, 8-inflatable balloon, 9-liquid drop rate collection unit, 10-moffe's dropping funnel, 11-infusion tube, 12-first data line, 13-second data line, 21-catheter chamber wall, 22-contrast machine display, 23-surgery table, 24-position of the main surgeon, 25-position of the arterial pressure bag, 26-position of the nurse workstation secondary display, 27-position of the surgery nurse, 28-position of the main display of the surgery area, 31-hanger of the contrast machine display, 32-real-time screen of the contrast machine display, 33-plain view of the position of the main display of the surgery area, 34-drip infusion one display schematic diagram, 35-drip infusion two display schematic diagram, 36-drip infusion three display schematic diagram, 37-drip infusion four display schematic diagram, 38-enlarged view of the main display of the surgery area. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0021] A medical compression bag multi-parameter monitoring and multi-terminal collaborative system for interventional surgery, comprising a parameter acquisition module, a data transmission module, and a multi-terminal display module. Figure 1 The parameter acquisition module comprises a 4-liquid residual amount acquisition unit, a 7-compression bag pressure acquisition unit, and a 9-liquid drop rate acquisition unit. The data transmission module is integrated in the 7-compression bag pressure acquisition unit. The 4-liquid residual amount acquisition unit sends data to the receiving module of the 7-compression bag pressure acquisition unit through a 13-second data line, and the 9-liquid drop rate acquisition unit sends data to the receiving module of the 7-compression bag pressure acquisition unit through a 12-first data line. The 7-compression bag pressure acquisition unit is integrated with a pressure sensor, a data processing chip (such as STM32F103), a wired receiving unit (ZigBee module), and a power supply unit. The integrated module of the 7-compression bag pressure acquisition unit is built-in Bluetooth 5.0 module, which sends integrated data (sampling frequency 1Hz) to the display terminal, and the transmission distance is ≥15m (the penetration wall capacity meets the communication between the catheter room and the outdoor). As Figure 2 The multi-terminal display module includes a 28-surgery area main display and a 26-nurse workstation auxiliary display. The 28-surgery area main display uses a 10-inch display and is installed on a 31-contrast machine display hanger, located on the left side of a 32-contrast machine display real-time screen. The display interface of the 28-surgery area main display includes liquid residual amount (digital + column chart), pressure value (digital + column chart), and drop rate (digital + column chart). The 26-nurse workstation auxiliary display uses a 7-inch touch screen and is placed in the nurse workstation, displaying the same content as the surgery area main display.

[0022] As Figure 1 The 4-liquid residual amount acquisition unit is integrated in the load-bearing shaft of the 7-compression bag hanging hook, and a strain gauge type weighing sensor with an accuracy of ±1g is selected. After the compression bag is in the hanging position, the sensor outputs a real-time total weight signal (range 0-5kg). Through finite element analysis and optimization of the structure, the weighing fluctuation is ≤0.5g at 5Hz (common shaking frequency in surgery). The calculation logic is as follows: according to the compression bag specifications (such as a 500ml specification of the compression bag with an initial total liquid amount of 500ml) and the liquid density (heparin saline density ≈1g / mL), the formula "liquid residual amount (mL) = [total liquid amount - (initial weight - real-time total weight)] / liquid density" is used for calculation, with a resolution of 1mL.

[0023] As Figure 16-Pressure bag pressure acquisition unit, using a miniature air pressure sensor (such as MS5803 series) with a range of 0-300kPa, connected to the inflation tube of the pressure bag (inner diameter of 6mm) through a sealed connector. The sensor outputs a 4-20mA current signal, corresponding to a pressure of 0-300kPa; Pressure display calculation: converts the real-time monitored pressure into a percentage, 100% is the maximum working pressure that the pressure bag can withstand, and 20% is the minimum working pressure that the pressure bag can maintain for dripping.

[0024] like Figure 1 9-The liquid drip rate acquisition unit uses a non-contact photoelectric drip rate sensor, which is clipped to the upper part of the 10-Moufley dripper. It is made of transparent material and does not affect the operator's observation of the drip. The transmitting tube and receiving tube are located on both sides of the dripper. When the droplet passes through, it blocks the infrared light and the sensor outputs a pulse signal. The drip rate is calculated by counting the number of pulses per unit time and converting it to drops / minute (1 pulse = 1 drop), with a range of 0-120 drops / minute.

[0025] Initialization: Before the operation, the nurse places 2 bags of liquid (such as heparinized saline) into 1-pressure bag, and suspends the 3-pressure bag hanging hook of 1-pressure bag onto the 25-arterial pressure bag hook on the angiography machine. The 9-liquid drip rate acquisition unit is clamped on the upper part of the 10-Mofi's drip tube. After the machine is turned on, the system automatically calibrates (identifies the initial weight corresponding to 500ml of liquid and the initial pressure is set to zero).

[0026] Real-time monitoring: During the operation, three sensors collect data synchronously: 4- The weighing module in the liquid balance acquisition unit updates the total weight every 1 second and calculates the liquid balance; 6- The pressure sensor in the pressure bag acquisition unit collects the internal pressure of the pressure bag every 0.5 seconds; 9- The drip rate acquisition unit in the liquid drip rate acquisition unit monitors the liquid droplets in real time and calculates the drip rate (drops / minute) every 5 seconds.

[0027] Data transmission and display: The data collected by the sensors in the 4-liquid balance acquisition unit and the 9-liquid drip rate acquisition unit are aggregated to the 6-pressure bag pressure acquisition unit via the 12-first data line and the 13-second data line, and then transmitted to two display terminals (26-nurse workbench secondary display and 28-operating area main display) via Bluetooth. The display content of the terminal is refreshed every 1 second.

[0028] Abnormality processing: the nurse prepares a spare pressure bag in advance after finding the early warning through the catheter room external monitor; the operator confirms the abnormality through the surgical area display and adjusts in time, and if replacement is needed, indicates the nurse to enter to avoid temporary interruption of the operation. For example, 34-drip one display indicates normal drip; 35-drip two display indicates that the liquid volume is insufficient and the drip is too slow, and the pressure bag liquid needs to be replaced immediately; 36-drip three display indicates that the liquid volume is close to insufficient and the infusion device has been closed; 37-drip four display indicates that the liquid volume is sufficient, the pressure is insufficient, and the drip is slow, and the pressure bag needs to be pressurized.

[0029] The present application realizes real-time acquisition and multi-terminal sharing of the pressure bag parameters through the Internet of Things technology, solves the problems of monitoring lag and low cooperation efficiency in the prior art, has the characteristics of simple structure, convenient operation and high safety, and is suitable for various interventional operation scenes.

Claims

1. A multi-parameter monitoring and multi-terminal collaborative system for medical compression bag used in interventional surgery, characterized in that, The system comprises: a parameter acquisition module for acquiring liquid residual volume, internal pressure of the compression bag and liquid drop rate parameters of the compression bag in real time; a data transmission module connected with the parameter acquisition module for collecting and wirelessly transmitting the collected data; a multi-terminal display module in communication connection with the data transmission module for receiving and displaying the parameter data; wherein the parameter acquisition module, the data transmission module and the multi-terminal display module work cooperatively to realize real-time monitoring, cross-space transmission and multi-terminal cooperative display of the compression bag multi-parameters in the interventional surgery.

2. The system of claim 1, wherein, The parameter acquisition module comprises: a liquid residual volume acquisition unit using a high-precision weighing sensor integrated on a compression bag suspension hook load-bearing shaft for calculating the liquid residual volume by monitoring the total weight of the compression bag; a compression bag pressure acquisition unit using a micro air pressure sensor built in an inflation tube of the compression bag for sealing connection with the tube for acquiring the internal gas pressure of the compression bag in real time; a liquid drop rate acquisition unit using a non-contact photoelectric drop rate sensor clamped to the outside of a transfusion device burette for calculating the liquid drop rate by monitoring the liquid drop passing rate.

3. The system according to claim 2, wherein: the weighing sensor used in the liquid residual volume acquisition unit has an accuracy of ±1g and a range of 0-5kg, and through structural optimization, the weighing fluctuation is ≤0.5g at a 5Hz shaking frequency; the compression bag pressure acquisition unit uses an air pressure sensor with a range of 0-300kPa, and converts the real-time pressure value into a percentage display; the liquid drop rate acquisition unit uses a transparent material that does not block the direct observation of the burette by the operator, has a range of 0-120 drops / minute and an accuracy of ±1 drop / minute.

4. The system of claim 2, wherein, The data transmission module comprises: a wired collection module, the liquid residual volume acquisition unit and the liquid drop rate acquisition unit are connected to the compression bag pressure acquisition unit through a data line, and the data is collected by a data processing chip built in the unit; the compression bag pressure acquisition unit is built in a power supply, and supplies power to the liquid residual volume acquisition unit and the liquid drop rate acquisition unit through the data line; a wireless Bluetooth data transmission module integrated in the compression bag pressure acquisition unit, using Bluetooth 5.0 protocol to wirelessly transmit the collected data to the display terminal, with a transmission distance of not less than 15m and the ability to penetrate the lead protection wall of the catheter room.

5. The system according to claim 4, wherein: the data processing chip integrated in the compression bag pressure acquisition unit is an STM32F103 chip, and has an IP67 waterproof and dustproof level; the sampling frequency of the wireless Bluetooth data transmission module is 1Hz, the data transmission rate is up to 2Mbps, and the delay is less than 3ms.

6. The system of claim 1, wherein, The multi-terminal display module comprises: a surgery area main display, which is a vertical screen display to prevent reflection, is installed on the display hanger of the imaging machine and is located in the golden position with an angle of view ≤15° of the operator, and displays the numerical value and column chart of the liquid residual volume, pressure value and drop rate in real time, and gives a red warning when the parameters are abnormal. The nurse workstation secondary display, which is a touch screen, is arranged on the nurse workstation outside the catheter room and synchronously displays parameter information consistent with the main display in the operation area and has a sound alarm function.

7. The system of claim 6, wherein: The main display in the operation area is a 10-inch screen with a brightness of no less than 1000 nit, which is suitable for the strong light environment in the operation area. The nurse workstation secondary display is a 7-inch screen with an alarm sound pressure level of 60-80 dB and adjustable.

8. The system of claim 1, wherein, Further comprising: An intelligent early warning module for triggering sound and light alarms when the monitored parameters exceed the preset threshold values. The preset threshold values include: liquid volume less than 100 mL, pressure value less than 20% or more than 100%, drop rate less than 5 drops per minute or more than 120 drops per minute, and data interruption more than 10 seconds.

9. The system according to any of claims 1-8, characterized in that, The workflow includes: System initialization and automatic calibration; Three sensors synchronously collect data; Data are collected by the pressure collection unit through a wired connection and then transmitted to the display terminal wirelessly; The terminal is refreshed in real time; The nurse and the operator cooperate to handle the abnormality according to the display information.

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