A heparin injection control device for a continuous renal replacement therapy apparatus

Abstract

The utility model discloses a heparin injection control device for continuous kidney replacement therapy equipment relates to medical equipment technical field, include: heparin pump pushes and injects module for storing heparin and will store heparin with the form of liquid drop output, liquid drop counting module, with heparin pump pushes and injects module and is used for calculating the quantity of heparin liquid drop through pipeline intercommunication, display module, with liquid drop counting module signal connection, and display module is used to show the result of liquid drop counting module counting. A heparin injection control device for continuous kidney replacement therapy equipment is provided in the application, heparin is injected into the liquid drop counting module in the form of liquid drop through the heparin pump push and injects module, and the liquid drop counting module can count the liquid drop, so that the actual consumption of heparin can be measured.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to a heparin injection control device for a continuous renal replacement therapy device. Background Technology

[0002] Currently, most CRRT (Continuous Renal Replacement Therapy) devices on the market use indirect heparin administration by controlling the motor speed (calculating the flow rate per revolution through testing). This indirect measurement lacks an error correction system, making it impossible to compare and calibrate the actual heparin usage during device operation (e.g., motor malfunction causing flow rate deviation per revolution). Some devices incorporate electromagnetic flowmeters, but ordinary electromagnetic flowmeters are not accurate at low heparin injection rates, and using high-precision electromagnetic flowmeters increases costs.

[0003] In terms of practicality, most devices currently on the market are only suitable for heparin injection using 20mL or 50mL syringes, and only have limit sensors, lacking other measures to monitor the syringe status in real time (such as locking). This results in low practicality and safety for heparin injection. Furthermore, most heparin injection devices on the market use the main display screen of continuous blood purification equipment for readings. In clinical treatment, equipment may need to be changed; if the equipment malfunctions, the main display screen will lose power, and the calculated values ​​cannot be displayed, making it impossible to calculate the fluid replacement volume.

[0004] In conclusion, how to calculate the actual amount of heparin used is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a heparin injection control device for a continuous renal replacement therapy device, wherein the heparin pump injection module injects heparin into the droplet counting module in the form of droplets, and the droplet counting module calculates the number of heparin droplets to calculate the actual amount of heparin used.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A heparin infusion control device for a continuous renal replacement therapy device, comprising:

[0008] A heparin pump delivery module for storing heparin and outputting the stored heparin in droplet form;

[0009] The droplet counting module is connected to the heparin pump injection module via a pipeline and is used to count the number of heparin droplets.

[0010] The display module is connected to the droplet counting module by signal, and the display module is used to display the counting result of the droplet counting module.

[0011] Preferably, the heparin pump injection module includes a diaphragm plate, a diaphragm button, a syringe, an injection pump head, and a syringe clamp. The injection pump head is disposed inside the syringe, the syringe is fixed to the diaphragm plate by the syringe clamp, and the diaphragm button is disposed on the diaphragm plate and electrically connected to the injection pump head.

[0012] Preferably, the heparin pump injection module further includes a syringe volume recognition component, which includes a rotation speed recognition sensor, a pressure sensor, and a limit component, wherein the pressure sensor is located at the injection pump head.

[0013] Preferably, the limiting component includes an upper limit sensor and a lower limit sensor, which are used to detect the position of the injection pump head.

[0014] Preferably, the syringe volume recognition component further includes an injection Hall sensor, which is disposed on the syringe clamp, and the syringe clamp is also provided with a magnet corresponding to the injection Hall sensor.

[0015] Preferably, the droplet counting module includes a droplet reservoir, a droplet metering tube, and a clamp, wherein the clamp is used to position the droplet reservoir and the droplet metering tube.

[0016] Preferably, the droplet counting module further includes an emitter, a receiver, a signal amplifier, a signal comparator, and a droplet counter, wherein the droplet counter is signal-connected to the signal amplifier, and the signal amplifier is signal-connected to the signal comparator.

[0017] Preferably, it also includes a main control chip, and the droplet counting module is signal-connected to the display module through the main control chip.

[0018] Preferably, the syringe clamps are provided in two and are detachably connected to the diaphragm plate.

[0019] Preferably, the display module is an e-ink display.

[0020] This utility model provides a heparin injection control device for a continuous renal replacement therapy device. The heparin pump injection module can store a certain amount of heparin. The droplet counting module is connected to the heparin pump injection module through a pipeline. When the heparin pump injection module sprays heparin towards the droplet counting module, it outputs in the form of droplets. The droplet counting module can calculate the number of droplets. The calculated number of droplets, or the actual amount of heparin used, can be directly displayed by the display module, thereby completing the calculation of the actual amount of heparin used. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the heparin injection control device for a continuous renal replacement therapy device provided by this utility model.

[0023] Figure 2 A schematic diagram of the heparin pump infusion module provided by this utility model;

[0024] Figure 3 This is a schematic diagram of the droplet counting module provided by this utility model.

[0025] Figure label:

[0026] 1-Heparin pump injection module; 2-Droplet counting module; 3-Display module; 4-Thin film plate; 5-Thin film button; 6-Instrument; 7-Injection pump head; 8-Instrument clamp; 9-Instrument volume recognition component; 10-Pressure sensor; 11-Injection Hall sensor; 12-Upper limit sensor; 13-Lower limit sensor; 14-Magnet; 15-Droplet volume container; 16-Droplet metering tube; 17-Holder; 18-Emitter; 19-Receiver. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] The core of this invention is to provide a heparin injection control device for a continuous renal replacement therapy device. This device enables heparin to pass through a droplet counting module in the form of droplets, thereby calculating the actual amount of heparin used.

[0029] It should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", and "rear" is based on the orientation or positional relationship shown in the accompanying drawings and is only for the purpose of facilitating the description of this application and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0030] This application provides a heparin injection control device for a continuous renal replacement therapy device, comprising: a heparin pump injection module 1, a droplet counting module 2, and a display module 3;

[0031] Among them, the heparin pump injection module 1 is used to store heparin and output the stored heparin in the form of droplets;

[0032] The droplet counting module 2 is connected to the heparin pump injection module 1 via a pipeline and is used to calculate the number of heparin droplets.

[0033] Display module 3 is connected to droplet counting module 2 via a signal, and display module 3 is used to display the counting result of droplet counting module 2.

[0034] For details, please refer to the appendix. Figure 1 The heparin pump injection module 1 and the droplet counting module 2 are connected in a sealed pipeline. The other end of the droplet counting module 2 is also equipped with an outlet pipe. The heparin pump injection module 1 stores a certain amount of heparin and can deliver it to the droplet counting module 2. The heparin is transported along the pipeline in the form of droplets and finally discharged from the droplet counting module 2 through the outlet pipe. The droplet counting module 2 can count the heparin droplets that pass through, thereby detecting and calculating the actual amount of heparin used. In addition, the droplet counting module 2 is connected to the display module 3. The display module 3 can directly display the counting result of the droplet counting module 2, which makes it easy to directly observe the actual injection flow rate of the heparin pump injection module 1.

[0035] Based on the above embodiments, the heparin pump injection module 1 includes a diaphragm plate 4, a diaphragm button 5, a syringe 6, an injection pump head 7, and a syringe clamp 8. The injection pump head 7 is disposed inside the syringe 6, and the syringe 6 is fixed to the diaphragm plate 4 by the syringe clamp 8. The diaphragm button 5 is disposed on the diaphragm plate 4 and electrically connected to the injection pump head 7.

[0036] Specifically, please refer to the appendix for the structure of heparin pump infusion module 1. Figure 1 With appendix Figure 2The base of the heparin pump injection module 1 is a membrane plate 4, on which a syringe clamp 8 is provided. The syringe 6 is fixed to the membrane plate 4 by the syringe clamp 8. The syringe 6 is provided with an injection pump head 7. When the injection pump head 7 moves to the right, it can output the heparin in the syringe 6 and deliver it to the droplet counting module 2 through the pipeline. The membrane plate 4 is also provided with two membrane buttons 5. Both membrane buttons 5 are electrically connected to the injection pump head 7. The two membrane buttons 5 are used to control the injection pump head 7 to move to the left or to the right, respectively. Simply put, when the left membrane button 5 is pressed, the injection pump head 7 moves to the left, and when the right membrane button 5 is pressed, the injection pump head 7 moves to the right.

[0037] Based on the above embodiments, the heparin pump injection module 1 further includes a syringe volume recognition component 9, which includes a speed recognition sensor, a pressure sensor 10 and a limiting component. The pressure sensor 10 is located on the injection pump head 7.

[0038] Specifically, the movement of the injection pump head 7 is achieved by a motor. The syringe container recognition component 9 includes a speed recognition sensor, which is used to calculate the motor speed and thus calculate the heparin usage based on the event. The pressure sensor 10 can determine the injection status of the injection pump head 7 in real time. The reading of the pressure sensor 10 can determine whether the injection pump head 7 is in the correct position or whether it is injecting normally, thus avoiding blockage. The limit component is used to limit the range of motion of the injection pump head 7. The injection Hall sensor 11 determines the two common capacities of the heparin pump injection module 1 (20mL or 50mL) and controls the heparin pump to perform a single injection or continuous infusion, respectively.

[0039] Based on the above embodiments, the limiting component includes an upper limit sensor 12 and a lower limit sensor 13, which are used to detect the position of the injection pump head 7.

[0040] Specifically, the upper limit sensor 12, the lower limit sensor 13, and the pressure sensor 10 can determine the injection status of the syringe in real time. Since the movement of the injection pump head 7 is achieved by a motor, a contact that moves synchronously with the injection pump head 7 is provided at the output end of the motor or on the injection pump head 7. This contact is located between the upper limit sensor 12 and the lower limit sensor 13. The upper limit sensor 12 and the lower limit sensor 13 can detect whether the position of the heparin injection pump head 7 is at the upper and lower limits. This device not only improves the safety and accuracy of the infusion device, but also improves the efficiency of medical staff in operating the equipment.

[0041] Based on the above embodiments, the syringe volume recognition component 9 also includes an injection Hall sensor 11, which is disposed on the syringe clamp 8, and the syringe clamp 8 is also provided with a magnet 14 corresponding to the injection Hall sensor 11.

[0042] Specifically, the heparin pump injection module 1 has two built-in injection Hall sensors 11 and two sets of replaceable syringe fixing devices. It should be noted that the replaceable syringe fixing devices here can be understood as separate syringe clamps 8, or as a combination structure of syringe clamps 8 and syringes 6. The two sets of this structure are based on the selection of common 20ml and 50ml syringes. More sets of corresponding replaceable syringe fixing devices can be set on this basis, all of which are within the protection scope of this application. The syringe fixing devices are equipped with magnets 14 on both sides. When the syringe fixing device is inserted, the injection Hall sensor 11 will detect the magnet 14 and output a signal to determine the capacity of the syringe.

[0043] Based on the above embodiments, the droplet counting module 2 includes a droplet capacity container 15, a droplet metering tube 16, and a clamp 17. The clamp 17 is used to position the droplet capacity container 15 and the droplet metering tube 16.

[0044] For details, please refer to the appendix. Figure 1 With appendix Figure 3 The droplet counting module 2 includes a matching droplet reservoir 15 for heparin. During the process of the injection pump head 7 pushing the syringe 6, heparin droplets will pass through the droplet reservoir. The droplet sensor built into the device will calculate the amount of heparin droplets during treatment (each droplet is equal in the matching consumables) to obtain the amount of heparin used. This amount of heparin used will be compared and calibrated with the amount of heparin used calculated by the aforementioned speed sensor. The droplet metering tube 16 is located in the droplet reservoir 15 to ensure that each droplet is almost the same size.

[0045] Based on the above embodiments, the droplet counting module 2 further includes an emitter 18, a receiver 19, a signal amplifier, a signal comparator, and a droplet counter. The droplet counter is connected to the signal amplifier, and the signal amplifier is connected to the signal comparator.

[0046] Specifically, the heparin pump injection module 1 injects a measured amount of heparin from the syringe 6 into the tubing, which then enters the droplet counting module 2. A set of photoelectric sensors is integrated into the holder 17 of the droplet counting module 2. The photoelectric sensor consists of an emitter 18 and a receiver 19. When the droplet falls at a constant speed, the receiver 19 of the photoelectric sensor will detect subtle changes in the received light signal. The droplet counting module 2 amplifies the subtle signal changes through a signal amplifier, and then compares the signal of droplet falling with the signal of no droplet falling through a preset signal comparator. The signal is then transmitted to the main control chip through the droplet counter. The setting of the droplet metering tube 16 can fix the amount of each droplet to minimize errors.

[0047] Based on the above embodiments, a main control chip is also included, and the droplet counting module 2 is connected to the display module 3 via the main control chip.

[0048] Specifically, the main control chip can calculate the amount of replenishing agent by counting the droplets and the amount of each droplet, and then transmit the data to the display module 3, and finally the transmitted data is displayed on the display module 3.

[0049] Based on the above embodiment, two syringe clamps 8 are provided and detachably connected to the diaphragm plate 4.

[0050] Specifically, this device is equipped with two sets of replaceable syringe fixing devices, which require two syringe clamps 8. The heparin pump injection module 1 has two built-in injection Hall sensors 11. The function of the injection Hall sensors 11 will not be elaborated here.

[0051] Based on the above embodiments, the display module 3 is an e-ink display screen.

[0052] Specifically, compared to ordinary displays, e-ink displays (electronic ink screens) have the following main advantages: eye-friendly and healthy, as e-ink screens do not emit light and use reflective display, resulting in no blue light and no flicker, providing a visual experience close to that of a paper book, reducing eye fatigue during long-term reading, and making them suitable for extended reading sessions; ultra-long battery life, consuming power only when turning pages or refreshing, with almost no power consumption during static display, allowing the device to last for weeks or even months, far exceeding the battery life of ordinary screen devices; readable in bright light, with no backlight design, no reflection or glare under strong light, high clarity, and suitable for outdoor use.

[0053] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0054] The foregoing has provided a detailed description of a heparin injection control device for a continuous renal replacement therapy system provided by this utility model. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A heparin injection control device for a continuous renal replacement therapy apparatus, characterized in that, include: Heparin pump delivery module (1) is used to store heparin and output the stored heparin in the form of droplets; The droplet counting module (2) is connected to the heparin pump injection module (1) through a pipeline and is used to calculate the number of heparin droplets; The display module (3) is connected to the droplet counting module (2) by signal. The display module (3) is used to display the counting result of the droplet counting module (2).

2. The heparin injection control device for a continuous renal replacement therapy apparatus according to claim 1, characterized by The heparin pump injection module (1) includes a diaphragm plate (4), a diaphragm button (5), a syringe (6), an injection pump head (7), and a syringe clamp (8). The injection pump head (7) is located inside the syringe (6). The syringe (6) is fixed to the diaphragm plate (4) by the syringe clamp (8). The diaphragm button (5) is located on the diaphragm plate (4) and is electrically connected to the injection pump head (7).

3. The heparin injection control device for a continuous renal replacement therapy apparatus according to claim 2, characterized in that, The heparin pump injection module (1) further includes a syringe volume recognition component (9), which includes a speed recognition sensor, a pressure sensor (10) and a limiting component. The pressure sensor (10) is located on the injection pump head (7).

4. The heparin injection control device for a continuous renal replacement therapy apparatus according to claim 3, characterized by The limiting component includes an upper limit sensor (12) and a lower limit sensor (13), which are used to detect the position of the injection pump head (7).

5. The heparin injection control device for a continuous renal replacement therapy apparatus according to claim 4, characterized in that, The syringe capacity identification component (9) also includes an injection Hall sensor (11), which is located on the syringe clamp (8). The syringe clamp (8) is also provided with a magnet (14) corresponding to the injection Hall sensor (11).

6. The heparin injection control device for a continuous renal replacement therapy apparatus according to claim 5, characterized by The droplet counting module (2) includes a droplet reservoir (15), a droplet metering tube (16), and a clamp (17). The clamp (17) is used to position the droplet reservoir (15) and the droplet metering tube (16).

7. The heparin infusion control device for a continuous renal replacement therapy device according to claim 6, characterized in that, The droplet counting module (2) also includes an emitter (18), a receiver (19), a signal amplifier, a signal comparator and a droplet counter. The droplet counter is connected to the signal amplifier and the signal amplifier is connected to the signal comparator.

8. The heparin injection control device for a continuous renal replacement therapy apparatus according to claim 7, characterized by It also includes a main control chip, and the droplet counting module (2) is connected to the display module (3) via the main control chip.

9. Heparin infusion control device for a continuous renal replacement therapy apparatus according to any one of claims 2 to 8, characterized in that The syringe clamp (8) is provided in two parts and is detachably connected to the diaphragm plate (4).

10. The heparin infusion control device for a continuous renal replacement therapy apparatus according to any one of claims 2 to 8, characterized in that, The display module (3) is an ink display screen.

Images