Portable constant-temperature constant-pressure invasive arterial pressure monitoring device for preloaded heparin brine

Abstract

The utility model discloses a portable constant-temperature constant-pressure invasive arterial pressure monitoring device for preloading heparin saline water. The portable constant-temperature constant-pressure invasive arterial pressure monitoring device comprises a device main body and a disposable sensor consumable for preloading the heparin saline water. The device body is small in size, can be hung on an infusion support for use, and is good in portability. After the improved sensor consumable is connected with an artery indwelling catheter of a patient, an artery pulse signal of the patient can be converted into pressure data to be displayed on a main body screen. A pressure control device and a temperature control device are further arranged in the main body, and a nurse can control the pressure control device and the temperature control device through the touch display screen, so that the pressure and the temperature of liquid in the saline bag are controlled, and constant temperature and constant pressure are kept. A nurse does not need to repeatedly adjust pressure and temperature, and a patient does not feel cold and uncomfortable when flushing the pipeline. According to the device, heparin, normal saline and a traditional sensor are integrally designed, so that the time consumed for nurse article preparation and operation is shortened, the labor cost is saved, and meanwhile, the time is bought for rescuing and transferring a patient.

Description

Technical Field

[0001] The utility model relates to the technical field of invasive arterial pressure monitoring devices, in particular to a portable constant-temperature and constant-pressure invasive arterial pressure monitoring device pre-filled with heparin saline. Background Art

[0002] Intra-Arterial Pressure Monitoring (IAPM) is an invasive medical technology that uses a pressure sensor to convert the patient's arterial pressure into an electrical signal and display it on a monitor. Specifically, an arterial indwelling needle or arterial sheath is inserted into the patient's artery, and the catheter is connected to the monitor through an arterial pressure sensor. When the heart contracts or relaxes, the pressure in the artery will increase or decrease as blood flows in and out. This pressure change will be detected by the arterial pressure sensor and converted into an electrical signal. These electrical signals are then amplified, filtered, and digitized, and finally displayed in digital form on the monitoring instrument, which can directly display the patient's systolic pressure, diastolic pressure, and mean arterial pressure, reflecting the patient's blood pressure changes in each cardiac cycle.

[0003] Compared with traditional non-invasive blood pressure, invasive arterial pressure monitoring technology can provide more continuous and accurate blood pressure data, which is of great significance for evaluating patients' cardiovascular function, monitoring treatment effects and guiding drug treatment. It is often used in critically ill and surgical patients, such as patients with various types of massive hemorrhage, shock, perioperative period of heart and brain and other major surgeries, and patients undergoing hypothermia treatment.

[0004] At present, the main operating methods of invasive pressure monitoring in China are: 1. Establish arterial vascular access; 2. Prepare heparinized saline; 3. Put heparinized saline into the pressurized infusion bag; 4. Connect heparinized saline and invasive pressure sensor, exhaust, and connect to the vascular access; 5. Connect the pressure sensor to the ECG monitor through a wire; 6. Manually pressurize the pressure bag; 7. Zero the system; 8. Observe the changes in arterial blood pressure. 9. Flush the pipeline regularly. When the pressure bag is insufficient, it needs to be manually pressurized again frequently.

[0005] This method has the following disadvantages: 1. The operation steps are cumbersome, and the preparation of items and medicines takes a long time and is easily contaminated, which is not conducive to the rescue of critically ill patients. 2. After flushing the pipeline, it is necessary to manually pressurize it again. If the pressure is not increased in time and the pressure does not meet the standard, it is easy to cause pipeline blockage and thrombosis after blood return; 3. The liquid is at room temperature, which is lower than the comfortable temperature of the human body. When flushing the pipeline, the liquid quickly enters the patient's body, which is easy to cause cold discomfort. 4. The device needs to be connected to an ECG monitor for use. Conventional ECG monitors are large and inconvenient to carry, which is not conducive to the transportation of critically ill patients.

[0006] In order to solve the above clinical pain points, this project intends to design a portable invasive arterial pressure monitoring device with constant temperature and pressure function and pre-loaded with heparin saline, which is convenient for nurses to operate and reduce manpower, material resources consumption and operation time. Utility Model Content

[0007] The utility model discloses a portable constant temperature and constant pressure invasive arterial pressure monitoring device pre-filled with heparin saline to solve many inconveniences existing in the above background technology.

[0008] In order to solve the above technical problems, the following technical solutions are proposed:

[0009] A portable constant temperature and constant pressure invasive arterial pressure monitoring device with pre-filled heparin saline, comprising a device body and a disposable sensor consumable, wherein the disposable sensor consumable is pre-filled with heparin saline, the device body comprising a display screen, a transparent visual consumable storage compartment, a data processing device and a liquid constant temperature and constant pressure device, the disposable sensor consumable and the liquid constant temperature and constant pressure device are in the transparent visual consumable storage compartment, the liquid constant temperature and constant pressure device wraps the disposable sensor consumable, the disposable sensor consumable, the liquid constant temperature and constant pressure device and the display screen are all electrically connected to the data processing device, the data processing device is used to obtain the patient's arterial pressure data detected by the disposable sensor consumable and control the liquid constant temperature and constant pressure device, and the display screen is used to display the patient's arterial pressure data obtained by the data processing device.

[0010] Preferably, the disposable sensor consumables include a heparin bag, a saline bag and an arterial pressure sensor consumable, the three of which are designed in an integrated manner, the saline bag and the heparin bag are placed in the transparent visual consumables storage compartment, a connecting channel is provided between the saline bag and the heparin bag, a diaphragm for blocking the connecting channel is provided in the connecting channel, when pressure is applied to the heparin bag, the diaphragm ruptures, and the saline bag and the heparin bag are connected through the connecting channel.

[0011] Preferably, the display screen is a touch-screen display screen, and the display screen controls the liquid constant temperature and pressure device through the data processing device.

[0012] Preferably, a hook is provided at the upper end of the transparent visual consumables storage compartment, and the disposable sensor consumables are arranged in the transparent visual consumables storage compartment through the hook.

[0013] Preferably, the liquid constant temperature and pressure device includes a pressurized bag, a pressurized pump and a pressure sensor, the pressurized bag wraps the physiological saline bag, the pressurized bag is connected to the pressurized pump, the pressure sensor is located between the pressurized bag and the physiological saline bag, the pressure sensor and the pressurized pump are both connected to the data processing device, the data processing device obtains the pressure information in the physiological saline bag through the pressure sensor, and controls the pressure of the pressurized bag on the physiological saline bag through the pressurized pump according to the pressure information.

[0014] Preferably, the liquid constant temperature and constant pressure device also includes a temperature control device, which is composed of a heating plate and a temperature sensor. The heating plate is arranged on the inner side wall of the consumables bin of the main device, and the temperature sensor device is arranged at the lower end of the disposable sensor consumable, that is, the end close to the patient. The heating plate and the temperature sensor device are both electrically connected to the data processing device. The data processing device obtains the liquid temperature information of the lower end of the disposable sensor consumable through the temperature sensor device, and adjusts the liquid temperature in the physiological saline bag through the heating plate according to the liquid temperature information.

[0015] Preferably, a battery is provided in the device body, and the battery is electrically connected to the data processing device.

[0016] Beneficial effects: The utility model discloses a portable constant temperature and constant pressure invasive arterial pressure monitoring device pre-filled with heparinized saline, including a device body and a modified disposable sensor consumable pre-filled with heparinized saline. The device body has high integration and small size, and can be hung on an infusion stand for independent use without connecting a large-volume electrocardiogram monitor. The device has good portability and can display the patient's arterial pressure information in real time, which is convenient for monitoring arterial blood pressure and greatly facilitates the rescue and safe transportation of critically ill patients. A pressure control device and a temperature control device are provided in the main body. Nurses can control these two devices separately through the touch screen to control the pressure and temperature of the liquid in the saline bag and maintain a constant temperature and pressure, which reduces the tedious steps of nurses repeatedly manually pressurizing during the monitoring process or after flushing the pipeline to prevent the pipeline blockage and thrombosis caused by blood return when the pressure does not meet the standard, and also reduces the cold discomfort caused by the rapid entry of liquid into the patient's body when flushing the pipeline. In addition, the device has also improved traditional sensor consumables, integrating heparin, saline and traditional sensors into an integrated design, shortening the time required for nurses to prepare items and operate before operation, reducing the chance of contamination during operation, saving labor costs, and buying time for rescuing and transferring patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the main structure diagram of the utility model device;

[0018] Figure 2 This is a diagram showing the internal structure of the main body of the device of the utility model;

[0019] Figure 3 This is a structural diagram of the disposable sensor consumables of the utility model;

[0020] Figure 4 This is the organizational structure diagram of the main components of the device of the utility model;

[0021] The main component symbols are described as follows:

[0022] 1. Device body: 11. Transparent visible consumables storage compartment; 12. Reserved hole; 13. Temperature control device connection hole; 14. Pressure sensor wire connection hole; 15. Power switch; 16. Touch screen; 17. Hook; 18. Storage compartment hook; 19. Pressurized bag; 20 Heating plate;

[0023] 2. Disposable sensor consumables: 21. Heparin bag; 22. Physiological saline bag; 23. Hanging hole; 24. Stop valve; 25. Moffitt dropper; 26. Pressure chamber kit (26a pressure chamber kit flushing valve); 27. Spiral interface; 28. Temperature sensor wire (28a, temperature sensor wire connector; 28b, temperature sensor); 29. ​​Pressure sensor wire (29a, pressure sensor wire connector); 30. Sensor three-way valve. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] The following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] The utility model is a portable constant temperature and constant pressure heparin saline pre-filled invasive arterial pressure monitoring device, please refer to Figure 1-4 , including a device body 1 and a disposable sensor consumable 2.

[0027] The use of the device of the utility model for invasive arterial pressure monitoring includes the following steps:

[0028] 1. Item preparation: invasive arterial pressure monitoring instrument (i.e. device body 1), disposable sensor consumables 2, arterial indwelling needle or arterial sheath, disinfectant, gloves, etc., and ensure the normal operation and disinfection of the equipment.

[0029] 2. Establish arterial vascular access: Select the radial artery, brachial artery, femoral artery or dorsalis pedis artery as the puncture site according to the patient's specific conditions and surgical needs. If necessary, perform local anesthesia on the puncture site and disinfect the skin. Use an arterial puncture needle (arterial indwelling needle or arterial sheath) to insert into the patient's artery and fix it, taking care to avoid damaging surrounding tissues and nerves.

[0030] 3. Device connection: ① Take out the device body 1 and hang it on the infusion stand; ② Take out the disposable sensor consumable 2 pre-filled with heparin saline, squeeze the heparin bag (21), and mix it with the liquid in the physiological saline bag (22) to form heparin saline with a fixed concentration; ③ Open the door of the transparent visible consumable storage compartment (11), install the heparin saline bag hanging hole (23) on the consumable storage compartment hook (18), and pass the sensor pipeline through the reserved hole (12) at the bottom of the device body 1, and close it. ④ Open the liquid stop valve (24), squeeze the Moffitt dropper (25) until the liquid level is 1 / 2-2 / 3 of the dropper, squeeze the flushing valve (26a) on the pressure chamber kit (26) to exhaust all the air and then release it, and connect the spiral interface (27) to the arterial puncture needle; ⑤ Connect the temperature sensor wire 28 connector (28a) to the device body temperature control device connection hole (13), and connect the pressure sensor wire (29) connector (29a) to the device body pressure control device connection hole (14).

[0031] 5. Adjust the parameters of the main device 1: Turn on the device power switch (15), and click the touch screen (16) to adjust the required pressure and temperature of the liquid in the device to the required range.

[0032] 5. Close the patient end of the sensor three-way valve (30) and click the touch screen (16) to perform system zero calibration.

[0033] 6. Open the patient end of the sensor three-way valve (30), monitor the changes in the patient's arterial blood pressure on the touch screen (16) and record the feedback.

[0034] 7. Flushing the pipeline: During use, in order to prevent blood from returning to the pipeline and causing blockage or thrombosis, the nurse needs to squeeze the flushing valve (26a) on the pressure chamber kit (26) to complete the flushing. At this time, the pressure in the heparin saline bag (21-22) decreases. When the pressure is lower than the set pressure, the data processing device (41) controls the pressure control device (42) to automatically start the pressure pump (42a) to pressurize the pressure bag (19) until the pressure reaches the set value to ensure the constant pressure of the device. At the same time, the temperature sensor (28b) works and transmits the temperature to the data processing device (41) through the temperature sensing wire (28). When the liquid temperature is lower than the set temperature, the heating plate (20) in the temperature control device (44) is automatically activated to adjust the liquid temperature to keep the flushing liquid at a constant temperature and reduce the patient's cold discomfort.

[0035] 8. Maintenance and extubation: Fix the catheter properly and flush the tube regularly. Change the dressing and disinfect the puncture site when necessary to avoid infection. Before extubation, click the touch screen (16) to lower the liquid pressure to avoid bleeding and other complications.

[0036] In this embodiment, the main device 1 needs to be used in conjunction with the improved disposable sensor consumable 2. After the arterial catheter is electrically connected to the main device 1 through the disposable sensor consumable 2, when the patient's heart contracts and relaxes, the pressure in the patient's artery will increase or decrease along with the rhythm of the heart's work. This pressure change will be detected by the pressure chamber kit (26) in the arterial pressure sensor device (43), and the patient's arterial pressure will be converted into electrical signals. These electrical signals are amplified, filtered and digitized in this process, and transmitted to the data processing device (41) of the device body 1 through the arterial pressure sensing wire (29), and converted into digital signals for display on the touch screen (16).

[0037] In this embodiment, the operator can control the data processing device (41) through the touch screen (16), thereby controlling the pressure pump (42a), the pressure bag (19) and the pressure sensor (42b) in the pressure control device (42). By adjusting the pressure value in the touch screen (16), the pressure pump (42a) can be mobilized to inflate the pressure bag (19), thereby pressurizing the heparin saline bag (21-22). When the pressure sensor (42b) measures that the pressure of the pressure bag on the heparin saline bag (21-22) reaches the value set by the operator in the touch screen (16), the feedback control pressure pump (42a) stops working. After the operator flushes the pipeline, the pressure of the pressure bag (19) on the heparin saline bag (21-22) decreases. When the pressure sensor (42b) measures that the pressure is lower than the value set by the operator, the feedback control pressure pump (42a) automatically starts the pressurization work until the pressure reaches the standard, thereby realizing the constant pressure function of the device.

[0038] In this example, the operator can also control the data processing control device (41) through the touch screen (16), thereby controlling the heating plate (20), the temperature sensor wire (28), and the temperature sensor (28b) in the temperature control device (44). By adjusting the temperature value in the touch screen (16), the heating plate (20) can be adjusted to heat the heparin saline bag (21-22). When the operator flushes the pipeline, when the temperature sensor (28b) measures that the temperature of the heparin saline reaches the value set by the operator in the touch screen (16), the feedback control heating plate (20) stops working. When the temperature of the heparin saline drops due to heat loss, and the temperature sensor (28b) measures that the liquid temperature is lower than the value set by the operator, the heating plate (20) automatically starts heating until the liquid temperature reaches the standard, thereby realizing the constant temperature function of the device.

[0039] In this embodiment, the conventional invasive arterial pressure sensor consumables are improved, and the heparin bag (21), the saline bag (22) and the conventional arterial pressure sensor kit (24-27, 29-30) are designed in an integrated manner. The heparin bag (21) and the saline bag (22) are connected via a connecting channel, and a diaphragm for blocking the connecting channel is provided in the connecting channel. When the medical staff needs to add heparin to the saline bag, they only need to apply pressure to the heparin bag. At this time, the diaphragm is forced to open under the action of pressure, so that the saline bag and the heparin bag are connected via the connecting channel, and then the heparin can flow into the saline bag and mix with the saline to form a heparin saline of the required ratio, which can be used after conventional exhaust, greatly reducing the cumbersome steps for nurses to prepare items and operate, and shortening the operation time.

[0040] At the same time, in this embodiment, the touch screen (16), transparent visual consumables storage compartment (11), data processing device (41), pressure control device (42), arterial pressure sensor device (43), temperature control device (44), etc. in the device body 1 are integrated. The device is small in size and can be directly hung on the infusion stand by the hook 17 for use without the need for a dedicated placement platform. The main body of the device is equipped with a lithium battery, which can be connected to a power source for use or used wirelessly after charging, which greatly increases the flexibility of the overall use scenario of the device and makes it easy for medical staff to carry and transfer.

[0041] Advantages:

[0042] 1. The utility model mainly includes an invasive arterial pressure monitoring device body that can adjust pressure and temperature with one button and keep pressure and temperature constant, and a disposable invasive arterial pressure sensor consumable pre-filled with heparin saline, and the two need to be used together. The pressure monitoring device body is connected to the patient's arterial catheter (such as arterial sheath, indwelling arterial needle, etc.) through the sensor consumable, and the patient's arterial pressure can be converted into an electrical signal through the sensing element, and displayed on the main touch screen.

[0043] 2. The main body of the utility model device includes a pressure control device, a temperature control device, a data processing device, a touch screen and a transparent visual consumables storage cabin. In terms of consumables, the structure has been improved on the basis of the original disposable invasive arterial pressure sensor, and the fixed ratio of heparin, saline and sensor are integrated into a design. When in use, the heparin part of the consumables only needs to be mixed into the saline by extrusion to form the required concentration of heparin saline, and then placed into the consumable cabin with a hole at the bottom, the cabin door is closed, the exhaust is exhausted, and the sensor consumables are connected to the main body of the device and the patient's artery, and the target pressure and temperature are adjusted to one key through the touch screen, and the pressure control device and the temperature control device are mobilized to work. When the temperature and pressure are not up to standard, the main body can be adjusted automatically to ensure the constant temperature and constant pressure effect of the device. It greatly reduces the cumbersome steps for nurses to prepare items and operate, shortens the time, improves the comfort of patients, saves labor costs, and also buys time for rescuing and transporting patients.

[0044] 3. The touch screen display of the pressure monitoring device designed in the utility model can display the patient's arterial pressure, pipeline liquid temperature, and consumable storage compartment pressure in real time. The device has high integration, small size, and is easy to use and portable.

[0045] The above disclosures are only several specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A portable constant temperature and constant pressure invasive arterial pressure monitoring device pre-filled with heparin saline, characterized in that: The device comprises a device body and a disposable sensor consumable, wherein the disposable sensor consumable is pre-installed with heparin saline, the device body comprises a display screen, a transparent visual consumable storage compartment, a data processing device and a liquid constant temperature and pressure device, the disposable sensor consumable and the liquid constant temperature and pressure device are in the transparent visual consumable storage compartment, the liquid constant temperature and pressure device wraps the disposable sensor consumable, the disposable sensor consumable, the liquid constant temperature and pressure device and the display screen are all electrically connected to the data processing device, the data processing device is used to obtain the patient's arterial pressure data detected by the disposable sensor consumable and control the liquid constant temperature and pressure device, and the display screen is used to display the patient's arterial pressure data obtained by the data processing device.

2. The portable constant temperature and constant pressure invasive arterial pressure monitoring device pre-filled with heparin saline according to claim 1, characterized in that: The disposable sensor consumables include a heparin bag, a saline bag and an arterial pressure sensor consumable, which are designed in an integrated manner. The saline bag and the heparin bag are placed in the transparent visual consumables storage compartment. A connecting channel is provided between the saline bag and the heparin bag. A diaphragm for blocking the connecting channel is provided in the connecting channel. When pressure is applied to the heparin bag, the diaphragm ruptures, and the saline bag and the heparin bag are connected through the connecting channel.

3. The portable constant temperature and constant pressure invasive arterial pressure monitoring device pre-filled with heparin saline according to claim 1, characterized in that: The display screen is a touch-screen display screen, and the display screen controls the liquid constant temperature and pressure device through the data processing device.

4. The portable constant temperature and constant pressure invasive arterial pressure monitoring device pre-filled with heparin saline according to claim 1, characterized in that: A hook is provided at the upper end of the transparent visual consumables storage compartment, and the disposable sensor consumables are arranged in the transparent visual consumables storage compartment through the hook.

5. The portable constant temperature and constant pressure invasive arterial pressure monitoring device pre-filled with heparin saline according to claim 2, characterized in that: The liquid constant temperature and pressure device includes a pressurized bag, a pressurized pump and a pressure sensor. The pressurized bag wraps the physiological saline bag, the pressurized bag is connected to the pressurized pump, the pressure sensor is located between the pressurized bag and the physiological saline bag, the pressure sensor and the pressurized pump are both connected to the data processing device, the data processing device obtains the pressure information in the physiological saline bag through the pressure sensor, and controls the pressure of the pressurized bag on the physiological saline bag through the pressurized pump according to the pressure information.

6. The portable constant temperature and constant pressure invasive arterial pressure monitoring device pre-filled with heparin saline according to claim 1, characterized in that: A battery is also arranged in the device body, and the battery is electrically connected to the data processing device.

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