Syringe Pump, Method for Confirming Infusion Information, Medical Device, and Storage Medium

Abstract

An injection pump (10) includes an injection pump drive mechanism (20), a syringe clamping mechanism (21), a syringe propulsion mechanism (22), a processor (12), an output interface (13), and a display screen (14); the syringe clamping mechanism (21) is used to clamp a syringe body (23), the injection pump drive mechanism (20) is used to drive the syringe propulsion mechanism (22) to push a piston (24) of the syringe, so that the piston (24) makes a relative movement with respect to the syringe body (23), the processor (12) is used to be connected to the display screen (14) through the output interface (13), and after the syringe (11) is clamped in the syringe clamping mechanism (21) and the user inputs syringe model information, dosage information is displayed on the display screen (14); the dosage information changes as the injection pump drive mechanism (20) operates. A method for confirming infusion information, a medical device, and a storage medium, so that the dosage information and / or injection time information can be accurately displayed, and the injection accuracy can be improved.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and in particular, to an infusion pump, a method for confirming infusion information, a medical device, and a storage medium. Background Art

[0002] The infusion pump relies on a push handle to push the liquid medicine in the syringe into the patient's body. The accurate calculation of the amount of medicine in the syringe and the precise detection of the emptying position of the syringe will affect the infusion accuracy of the patient, and in severe cases, overcurrent or undercurrent may occur.

[0003] Existing infusion pumps usually use the following scheme for injection infusion. Specifically, it relies on medical staff to estimate the amount of medicine and input the medicine amount parameter into the infusion pump. The infusion pump implements injection infusion according to this parameter and gives the injection time. However, this method relies on the experience of medical staff. When the input medicine amount parameter is much smaller than the actual amount of medicine, it may cause the infusion pump to complete the infusion in advance, delaying the treatment of the patient; when the input medicine amount parameter is much larger than the actual amount of medicine, since the infusion pump cannot accurately obtain the emptying position, the infusion pump cannot issue an emptying alarm in time, resulting in undercurrent and delaying the treatment of the patient. Summary of the Invention

[0004] Based on this, in view of the above technical problems, it is necessary to provide an infusion pump, a method for confirming infusion information, a medical device, and a storage medium that can accurately calculate the remaining amount of medicine and / or the remaining injection time.

[0005] An infusion pump, the infusion pump includes an infusion pump driving mechanism, a syringe clamping mechanism, a syringe pushing mechanism, a processor, an output interface, and a display screen;

[0006] The syringe clamping mechanism is used to clamp the syringe body. The infusion pump driving mechanism is used to drive the syringe pushing mechanism to push the piston of the syringe, so that the piston makes a relative movement with the syringe body. The processor is used to connect to the display screen through the output interface. After the syringe is clamped in the syringe clamping mechanism and the user inputs the syringe model information, the amount of medicine information is displayed on the display screen; the amount of medicine information changes as the infusion pump driving mechanism works.

[0007] An infusion pump, the infusion pump includes an infusion pump driving mechanism, a syringe clamping mechanism, a syringe pushing mechanism, a processor, an output interface, and a display screen;

[0008] The syringe clamping mechanism is used to clamp the syringe body. The injection pump driving mechanism is used to drive the syringe propulsion mechanism to push the piston of the syringe, so that relative movement occurs between the piston and the syringe body. The processor is used to connect to the display screen through the output interface. After the syringe is clamped by the syringe clamping mechanism and the user inputs the syringe brand information and flow rate, injection time information is displayed on the display screen, and the injection time information changes as the injection pump driving mechanism operates.

[0009] An injection pump, which includes an injection pump driving mechanism, a syringe clamping mechanism, a syringe propulsion mechanism, a processor, an output interface, and a display screen;

[0010] The syringe clamping mechanism is used to clamp the syringe body. The injection pump driving mechanism is used to drive the syringe propulsion mechanism to push the piston of the syringe, so that relative movement occurs between the piston and the syringe body. The processor is used to connect to the display screen through the output interface. After the syringe is clamped by the syringe clamping mechanism and the user inputs the syringe brand information and flow rate, drug amount information and / or injection time information is displayed on the display screen; the drug amount information and / or injection time information changes as the injection pump driving mechanism operates; wherein, the drug amount information or the injection time information is displayed in a first display mode; the ratio of the drug amount information to the total infusion volume, or the comparison of the injection time information to the total infusion time, is displayed in a second display mode; the first display mode and the second display mode include one or a combination type of text, numbers, or graphics; the first display mode is different from the second display mode.

[0011] A method for confirming infusion information of an injection pump, which is applied to an injection pump, and the injection pump includes an injection pump driving mechanism, a syringe clamping mechanism, a syringe propulsion mechanism, a processor, an output interface, and a display screen; the method includes:

[0012] Clamp the syringe on the syringe clamping mechanism;

[0013] Input the syringe model information;

[0014] Display the drug amount information;

[0015] The drug amount information changes as the syringe driving mechanism operates. When the injection pump driving mechanism operates, it drives the syringe propulsion mechanism to push the piston of the syringe, so that relative movement occurs between the piston and the syringe body for operation.

[0016] A method for confirming infusion information of an infusion pump, the method being applied to an infusion pump, the infusion pump comprising an infusion pump drive mechanism, a syringe clamping mechanism, a syringe propulsion mechanism, a processor, an output interface and a display screen; the method comprising:

[0017] Clamp the syringe on the syringe clamping mechanism;

[0018] Input the syringe model information and the flow rate;

[0019] Display the injection time information;

[0020] The injection time information changes as the infusion pump drive mechanism operates. When the infusion pump drive mechanism operates, it drives the syringe propulsion mechanism to push the piston of the syringe, so that the piston makes a relative movement with the syringe body to perform the operation.

[0021] A medical device for connecting to the above-mentioned infusion pump through the output interface, wherein a display device is provided on the medical device, and the display device is used to display the prompt information output by the output interface.

[0022] A storage medium stores executable instructions configured to cause a processor to implement the above method when executing the executable instructions.

[0023] The above-mentioned infusion pump includes an infusion pump drive mechanism, a syringe clamping mechanism, a syringe propulsion mechanism, a processor, an output interface and a display screen; the syringe clamping mechanism is used to clamp the syringe body, and the infusion pump drive mechanism is used to drive the syringe propulsion mechanism to push the piston of the syringe, so that the piston makes a relative movement with the syringe body. The processor is used to connect to the display screen through the output interface, and after the syringe is clamped on the syringe clamping mechanism and the user inputs the syringe model information, the drug amount information is displayed on the display screen; the drug amount information changes as the infusion pump drive mechanism operates. Among them, the piston displacement is obtained according to the relative movement between the piston and the syringe body, and the drug amount information can be determined according to the piston displacement and the syringe model information, so that the drug amount information can be accurately displayed, which is convenient for the user to perform the next operation. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the disclosed drawings.

[0025] Figure 1 It is a structural block diagram of the medical device in the embodiment of the present invention;

[0026] Figure 2 This is the application environment diagram of the syringe pump in the embodiments of the present invention;

[0027] Figure 3 This is the structural block diagram of the syringe pump in the embodiments of the present invention;

[0028] Figure 4 This is the structural block diagram of the syringe pump in the embodiments of the present invention;

[0029] Figure 5 This is the structural block diagram of the syringe pump in the embodiments of the present invention;

[0030] Figure 6 This is a schematic diagram of the syringe pump in the embodiments of the present invention clamping a syringe;

[0031] Figure 7 This is the structural block diagram of the syringe pump in the embodiments of the present invention;

[0032] Figures 8A - 8D This is a schematic diagram when the display mode is a prompt progress bar in the embodiments of the present invention;

[0033] Figures 9A - 9B This is a schematic diagram of emitting a reminder signal in the embodiments of the present invention;

[0034] Figure 10 This is a display schematic diagram in the embodiments of the present invention. Detailed implementation manners

[0035] Reference will be made in detail to the embodiments, examples of which are shown in the accompanying drawings. Many specific details are set forth in the following detailed description in order to provide a thorough understanding of the various described embodiments. However, it should be understood by those of ordinary skill in the art that the various described embodiments may be practiced without these specific details. In other embodiments, well-known methods, procedures, components, circuits, and networks are not described in detail so as not to unnecessarily obscure the embodiments.

[0036] It will also be understood that although in some cases the terms "first", "second", etc. are used herein to describe various elements or other objects, these elements or objects should not be limited by these terms. These terms are only used to distinguish one element / object from another element / object.

[0037] The terms used in the description of the various embodiments herein are for the purpose of describing particular embodiments only and are not intended to be limiting. As used in the description of the various embodiments and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. It will also be understood that the term "comprising" when used in this specification refers to the presence of the stated features, steps, operations, elements, and / or components, but does not preclude the presence or addition of one or more other features, steps, operations, elements, and / or components.

[0038] As used herein, depending on the context, the term "if" can be interpreted to mean "when", "in response to determining", or "in response to detecting", etc. Similarly, depending on the context, the phrase "if it is determined that..." or "if [the stated condition or event] is detected" can be interpreted to mean "when it is determined that...", "in response to determining...", "when [the stated condition or event] is detected", or "in response to detecting [the stated condition or event]".

[0039] Figure 1 Describe a medical device according to certain embodiments of the present invention. Device 10 includes a control platform 102, a memory 104, a power supply system 106, an input / output (I / O) system 108, an RF circuit 120, an external port 122, an audio circuit 124, a monitoring circuit 126, a protection circuit 128, a power drive circuit 130, a drip rate sensor 132, a bubble sensor 134, a pressure sensor 136, and a temperature sensor 138. These components communicate through one or more communication buses or signal lines 110. Among them, the control platform 102 includes a processor 150 and a peripheral device interface 152.

[0040] Device 10 can be any medical device that performs the infusion operation set by the user according to the configured liquid and controllably inputs the configured liquid medicine into the patient's body, including but not limited to injection pumps, analgesic pumps, nutritional pumps, insulin pumps, etc., and also includes combinations of two or more of them. In some embodiments, the medical device can be used in conjunction with an infusion set (such as an infusion tube, a syringe). It should be understood that device 10 is just an example, and the components of the medical device can have more or fewer components than shown in the figure, or have different component configurations. In conjunction with Figure 1 The various components described above can be implemented in hardware, software, or a combination of software and hardware, including one or more signal processing and / or application-specific integrated circuits.

[0041] Memory 102 may include high-speed random access memory and may also include non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid state storage devices. In certain embodiments, memory 104 may also include memory remote from one or more of the processing / controller 150, such as network-attached memory accessible via RF circuitry 120 or external port 122 and a communication network (not shown), where the communication network may be the Internet, one or more intranets, local area network (LAN), wide area wireless network (WLAN), storage area network (SAN), etc., or a suitable combination thereof. The processor 150 may control access to the memory 104 by other components of the device 10 in addition to the peripheral interface 152.

[0042] The peripheral interface 152 couples the input and output peripherals of the device 10 to the processing / controller 150 and the memory 104. The one or more processing / controller 150 execute various software programs and / or instruction sets stored in the memory 104 to perform various functions of the device 10 and process data.

[0043] In certain embodiments, the peripheral interface 152 and the processing / controller 150 may be implemented on a single chip. In some embodiments, they may be implemented on multiple discrete chips.

[0044] The RF (Radio Frequency) circuit 120 receives and transmits electromagnetic waves. The RF circuit 120 converts an electrical signal into an electromagnetic wave, or converts an electromagnetic wave into an electrical signal, and communicates with a communication network and other communication devices via the electromagnetic wave. The RF circuit 112 may include well-known circuits for performing these functions, including but not limited to an antenna system, an RF transceiver, one or more amplifiers, a tuner, one or more oscillators, a digital signal processor, a CODEC chipset, a subscriber identity module (SIM) card, a memory, etc. The RF circuit 120 may communicate with a network and other devices via wireless communication, and the network may be the World Wide Web (WWW), an intranet, and / or a wireless network such as a cellular telephone network, a wireless local area network (LAN), and / or a metropolitan area network (MAN). The wireless communication may use any one of a variety of communication standards, protocols, and technologies, including but not limited to Global System for Mobile Communications (GSM), Enhanced Data GSM Environment (EDGE), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Bluetooth (e.g., IEEE802.15.1), Wireless Fidelity (WIFI) (e.g., IEEE802.11a, IEEE 802.11b, IEEE802.11g, and / or IEEE802.11n), Voice over Internet Protocol (VoIP), Wi-MAX, protocols for email, instant messaging, and / or Short Message Service (SMS), or any other suitable communication protocol, including communication protocols not yet developed as of the filing date of this application.

[0045] The external port 122 provides a wired communication interface between the device 10, other devices (such as a Dock, a central station, a monitor, etc.), or a user (a computer or other communication device). In some embodiments, it may be a communication interface controlled by the CAN bus protocol, a communication interface controlled by a serial communication protocol (such as RS485, RS232), or a Universal Serial Bus (USB). The external port 122 is suitable for being directly or indirectly coupled to other devices or a user via a network (such as the Internet, a LAN, etc.).

[0046] The audio circuit 124 and the speaker 154 provide an audio interface between the user and the device 10. The audio circuit 124 receives audio data from the peripheral device interface 152, converts the audio data into an electrical signal, and transmits the electrical signal to the speaker 154. The speaker 154 converts the electrical signal into sound waves perceptible by humans.

[0047] The monitoring circuit 126 may include a fault detection circuit for indicating the state of one or more processing / controller 150.

[0048] The protection circuit 128 may include hardware protection devices (such as fuses, TVS diodes) for protecting the power safety of each component within the device 10. The processing / controller 150 drives a power device (not shown in the figure) of the device 10 through the power driving circuit 130, enabling the power device to move controllably under the drive of the processing / controller 150. During the movement process, one or more force transmission / conversion devices (such as gears, transmission shafts, lead screws, nuts or sliders) drive a control object (such as a pump door or a push-pull box) to move. The power device may be an electromagnetic device that realizes the conversion or transmission of electrical energy based on the law of electromagnetic induction, such as a permanent magnet (PM) motor, a reactive (VR) motor, and a hybrid (HB) motor. In some embodiments, the motor drives a control object (such as a pump door or a push-pull box) of the device 10 under the drive of the processing / controller 150, enabling the control object to achieve a preset motion state.

[0049] In some embodiments, the infusion device is a syringe. The push-pull box is used to hold the piston of the syringe. The processing / controller 150 in the device 10 issues instructions such as rotational speed or moving position. The injection action of the injection pump of the power device is driven by the power driving circuit 130. Control pulses are sent out by the power device, causing the motor to rotate through the driving circuit. The motor drives the lead screw and nut through a reduction mechanism, converting the rotational motion of the motor into the linear motion of the nut. The nut is connected to the push rod of the supporting syringe, and the push rod is connected to the push-pull box. The push-pull box can push the piston of the supporting syringe for injection infusion. By setting the rotational speed of the motor, the pushing speed of the supporting syringe can be adjusted, thereby adjusting the infusion dose and infusion speed given.

[0050] In some embodiments, the pressure sensor 136 can respond to the pressure value of the object to be measured and convert the pressure value into an electrical signal for detection and send it to the control platform 102. The pressure sensor may be a resistance strain gauge pressure sensor, a semiconductor strain gauge pressure sensor, a piezoresistive pressure sensor, an inductive pressure sensor, a capacitive pressure sensor, a resonant pressure sensor, an optical fiber pressure sensor, or a capacitive acceleration sensor. In some embodiments, the pressure sensor 136 can be used to detect the internal pressure or external pressure of the infusion device. In some embodiments, the pressure sensor 136 can also be used to detect the in-place state of the object to be measured (such as a syringe, etc.). In some embodiments, the pressure sensor 136 can detect blockage inside the infusion device or detect whether the infusion device leaks.

[0051] In some embodiments, the device 10 has a heating device for heating the liquid in the infusion set. At this time, the temperature sensor 138 can be used to detect the real-time temperature of the liquid; meanwhile, the temperature value is converted into an electrical signal for detection and sent to the control platform 102. The control platform 102 can display the real-time temperature through the display screen system 160, or can perform on / off control of the heating device according to the temperature value.

[0052] The input / output (I / O) system 108 provides an interface between the input / output peripherals of the device 10 and the peripheral device interface 152. The input / output peripherals can be a display screen system 160, a position sensor 164, a displacement sensor 166, a lighting component 168, and other input / control devices 162. The I / O system 108 can include a display controller 140, a position sensor controller 144, a proximity sensor controller 146, a lighting controller 148, and one or more input controllers 142. One or more controllers in the I / O system 108 receive / send electrical signals from / to the input / output peripherals. Among them, one or more input controllers 142 receive / send electrical signals from / to other input / control devices 162. The other input / control devices 162 can include physical buttons (such as push buttons, rocker buttons, or touch buttons, etc.), slider switches, joysticks, etc. In some embodiments, the other input / control devices 162 can include physical buttons for emergency stop of infusion.

[0053] In some embodiments, the display system 160 can include a display screen, which provides an output interface between the device 10 and the user, and displays the electronic file onto the screen through a specific transmission device and then reflects it into the human eye; the display screen can include a cathode ray tube display (CRT), a plasma display panel (PDP), or a liquid crystal display (LCD), etc. In some embodiments, the display system 160 can include a touch screen, which provides an input / output interface between the device 10 and the user; the touch screen can include a resistive screen, a surface acoustic wave screen, an infrared touch screen, an optical touch screen, a capacitive screen, or a nano film, etc., which is an inductive display device that can receive input signals such as touches. Whether it is a display screen or a touch screen, it can display visual output to the user. The visual output optionally includes graphics, text, charts, videos, and combinations thereof. Some or all of the visual outputs can correspond to user interface objects, and more details of which will be described in the text.

[0054] The touch screen also accepts user input based on touch and / or contact. The touch screen forms a touch-sensitive surface for receiving user input. The touch screen and the display controller 140 (along with any associated modules and / or instruction sets in the memory 104) detect contact on the touch screen (and any movement or interruption of the touch), and convert the detected contact into an interaction with user interface objects such as one or more soft keys displayed on the touch screen. In an exemplary embodiment, the point of contact between the touch screen and the user corresponds to one or more fingers of the user. The touch screen may use LCD (Liquid Crystal Display) technology or LPD (Light-Emitting Polymer Display) technology, but other display technologies may be used in other embodiments. The touch display screen and the display controller 140 may use any of a variety of touch-sensitive technologies to detect contact and its movement or interruption, including but not limited to capacitive, resistive, infrared, and surface acoustic wave technologies, as well as other proximity sensor arrays, or other technologies for determining one or more points of contact with the touch display screen.

[0055] The position sensor 164 can sense the position of the object to be measured, convert the position into a detectable electrical signal, and send the electrical signal to the control platform 102 through the I / O system 108. The position sensor can be a contact sensor that generates a signal when two objects come into contact and squeeze, such as a travel switch or a two-dimensional matrix position sensor; it can also be a proximity sensor that generates a signal when two objects approach a preset distance, such as an electromagnetic, photoelectric, differential transformer, eddy current, capacitive, reed switch, ultrasonic, or Hall type. The object to be measured may include an infusion device, a pump door, a pump piece, a liquid stop clip, and a push rod, etc. In some embodiments, a Hall type position sensor can be used to detect the position of the pump door. In some embodiments, a photoelectric position sensor can be used to detect the position of the pump piece. In some embodiments, a photoelectric position sensor can be used to detect whether the infusion device is set at a preset position. In some embodiments, a photoelectric position sensor can be used to detect the position state of the clamping mechanism of the syringe. In some embodiments, a photoelectric position sensor can be used to detect the position of the liquid stop clip when it clamps the tube.

[0056] The displacement sensor 166 can respond to the position change of the object to be measured relative to the reference position, convert the position change into a detectable electrical signal, and send the electrical signal to the control platform 102 through the I / O system 108. The displacement sensor 106 can be inductive, capacitive, ultrasonic, or Hall type. In some embodiments, a potentiometer can be used to monitor the position change of the pump door. In some embodiments, a potentiometer can be used to monitor the position change of the slider of the syringe pump. In some embodiments, a rotary potentiometer can be used to monitor the outer diameter change of the infusion device (such as a syringe).

[0057] The lighting assembly 168 may include a visual alarm element for indicating that the device 10 is in an abnormal state. The lighting assembly 168 responds independently to the drive of the processing / controller 150; the lighting assembly 168 may also cooperate with the speaker 154 correspondingly to respond to the drive of the processing / controller 150. For example, the color or brightness of the light changes with the tone and frequency of the alarm sound. The lighting assembly 168 may include indicator lights for components such as the power supply, CPU, etc., or an infusion failure status alarm light. The lighting assembly 168 may also include a visual lighting element for facilitating the observation of the structure or component status of the device 10 when the ambient light is poor.

[0058] The device 10 further includes a power supply system 106 for powering various components. The power supply system 106 may include a power management system, one or more power supplies (such as batteries or alternating current (AC)), a charging system, a power failure detection circuit, a power converter or inverter, a power status indicator (such as a light-emitting diode (LED)), and may also include any other components associated with power generation, management, and distribution.

[0059] In some embodiments, the software components include an operating system 170, a communication module (or instruction set) 172, a touch module (or instruction set) 174, a haptic feedback module (or instruction set) 176, a motion module (or instruction set) 178, a position module (or instruction set) 180, a graphics module (or instruction set) 182, a text input module (or instruction set) 190, a device / global internal state (or instruction set) 192, and one or more applications (instruction sets) 194.

[0060] The operating system 170 (such as an embedded operating system like Darwin, RTXC, LINUX, UNIX, OS, WINDOWS, etc.) includes various software components and / or drivers for controlling and managing general system tasks (such as memory management, storage device control, or power management, etc.) and facilitating communication between various software and hardware components.

[0061] The communication module 172 facilitates communication with other devices via one or more external ports 122, and it also includes various software components for processing data received by the RF circuit 120 and / or the external port 122.

[0062] In some embodiments, the touch module 174 can optionally detect contact with the display screen system 160 or other touch-sensitive devices (such as touch buttons, touch pads). For example, the touch module 174, together with the display controller 140, detects contact with the display screen system 160. The touch module 174 includes various software components for performing various operations associated with detecting contact with the display screen system 160 (which can be made by a finger or a stylus, etc.), such operations as determining whether contact has occurred (such as detecting the finger press time), determining the intensity of the contact (such as the force or pressure of the contact), determining whether the contact is moving (such as detecting one or more finger drag events), and tracking the movement on the display screen, and determining whether the contact has stopped (such as detecting the finger lift time or the contact disconnection). The operation of determining the movement of the contact point can include determining the rate (amplitude), speed (amplitude and direction), and / or acceleration (including amplitude and / or direction) of the contact point. These operations can be applied to single-point contact or multi-point simultaneous contact. In some embodiments, the touch module 174, in combination with the display controller 140, detects contact with other touch devices.

[0063] The touch module 174 can be used to detect the user's gesture input. Different gestures of the user on the touch-sensitive device have different contact patterns (for example, one or more combinations of the position, time, or intensity at which contact is detected). For example, detecting a single-finger tap gesture includes detecting a finger press event and then detecting a finger lift event at the same or a nearby position as the finger press event. For example, detecting a finger swipe gesture on the surface of the touch device includes detecting a finger press event, then monitoring one or more finger drag events, and subsequently detecting a finger lift event. Similarly, the tap, swipe, drag, and other gestures of the stylus are optionally detected by detecting a specific contact pattern of the stylus.

[0064] The haptic feedback module 176 includes various software components for generating instructions to generate haptic outputs at one or more positions of the device 10 using one or more haptic output generators (not shown in the figure) in response to the user's interaction with the device 10. For example, after detecting contact on the surface of the touch device, the color of the graphics or text on the touch device changes, or a sound or vibration is generated.

[0065] The position module 180 includes software components for performing various operations related to detecting the device position and detecting changes in the device position.

[0066] The graphics module 182 includes various known software components for rendering or displaying graphics on the display screen system 160 or the display screen of other external devices, including components for changing the visual impact of the displayed graphics (such as brightness, transparency, saturation, contrast, or other visual attributes). In the embodiments herein, the term "graphics" includes any object that can be displayed to the user, including but not limited to text, web pages, icons (such as user interface objects of soft keys), digital images, videos, animations, etc. In some embodiments, the graphics module 182 stores data representing the graphics to be used. Each graphic can be assigned a corresponding code. The graphics module 182 receives from an application or the like one or more codes for specifying the graphics to be displayed, and also receives coordinate data and other graphic attribute data as necessary, and then generates screen image data for output to the display controller 140.

[0067] The text input module 190 provides various software components for inputting text in one or more applications. Specifically, it can be used to input various infusion parameters, including drug names, infusion rates, or alarm thresholds, etc.

[0068] In some embodiments, the memory 104 stores the device / global internal state 192. The device / global internal state 192 includes one or more of the following: the active application state, which indicates which applications (if any) are currently active; the display state, which indicates what applications, views, or other information occupy the respective regions of the display system 112; the sensor state, including information obtained from the various sensors of the device and other input or control devices 116; and the position and / or orientation information regarding the position and / or orientation of the device.

[0069] In some embodiments, the memory 104 ( Figure 1stores at least one application 194, and the application 194 may include an infusion mode setting 194-1, an occlusion pressure level setting 194-2, a drug setting 194-4, a volume setting 194-5, a brightness setting 194-6, an online setting 195-7, a Dock setting 195-8, or a temperature setting 195-9. The infusion mode setting 194-1 may include a combination of preset infusion parameters to meet the requirements of different usage scenarios; the occlusion pressure level setting 194-2 may include an interface for the user to input different occlusion pressure levels, and by inputting different occlusion pressures, the occlusion alarm threshold of the device 10 can be adjusted to meet the requirements of different usage scenarios. The drug setting 194-4 may include an interface for the user to input different drug names, drug abbreviations, and / or drug colors, etc. By inputting the corresponding drug name / abbreviation / color, etc., the drug parameters before infusion can be set to facilitate the automatic confirmation inside the device 10 or the verification by medical staff during the infusion process. The volume setting 194-5 provides the user with the ability to adjust the alarm volume and / or the volume of other audio outputs according to needs. The brightness setting 194-6 provides the user with the ability to adjust the screen brightness, alarm light, illumination light, etc. according to needs. The online setting 195-7 provides an input interface for the user to control whether the device 10 works online with other devices and the online working mode according to needs. The Dock setting 195-8 provides an interface for the user to adjust the working parameters of the mount (Dock) connected to the device 10 according to needs. The temperature device 195-9 provides an interface for the user to set the temperature of the liquid in the heated infusion set.

[0070] Among them, the device 10 provided above may be an infusion pump. The infusion pump provided by the embodiment of the present invention can be applied to, for example, Figure 2 the application environment shown. Among them, the infusion pump 10 is clamped and connected to the syringe 11, and the infusion pump 10 can push the piston in the syringe 11 to move, thereby causing relative movement. The infusion pump 10 includes a processor 12. Optionally, the processor 12 may be a CPU (Central Processing Unit), an IPU (Intelligence Processing Unit), etc. The infusion pump 10 also includes an output interface 13 and a display screen 14, and the processor 12 is connected to the display screen 14 through the output interface 13. Among them, according to the relative movement of the piston and the syringe body, the piston displacement can be obtained, and the processor 12 can determine the drug amount information according to the piston displacement and the syringe model information input by the user.

[0071] Among them, the display screen 14 provides an output interface between the infusion pump 10 and the user, and it displays the drug dosage information on the screen through a specific transmission device and then reflects it to the human eye; the display screen may include a cathode ray tube display (CRT), a plasma display panel (PDP), a liquid crystal display (LCD), etc., and can display visual output to the user. The visual output optionally includes graphics, text, charts, videos, and combinations thereof. Some or all of the visual outputs may correspond to user interface objects, and more details thereof will be described in the text.

[0072] In some embodiments, as Figure 3 shown, a structural block diagram of an infusion pump 10 is provided. The infusion pump 10 includes an infusion pump driving mechanism 20, a syringe clamping mechanism 21, a syringe propulsion mechanism 22, a processor 12, an output interface, and a display screen;

[0073] The syringe clamping mechanism 21 is used to clamp the syringe body 23, and the infusion pump driving mechanism 21 is used to drive the syringe propulsion mechanism 22 to push the piston 24 of the syringe, so that the piston 24 makes a relative movement with the syringe body 23. The processor 12 is used to connect to the display screen through the output interface, and after the syringe is clamped in the syringe clamping mechanism 21 and the user inputs the syringe model information, the drug dosage information is displayed on the display screen; the drug dosage information changes as the infusion pump driving mechanism 20 works.

[0074] Among them, the syringe model information may be syringe brand information. For example, if the syringe brand only includes one model, the size information of the syringe can also be obtained through the syringe brand information; it may also be syringe brand information and model information. If the syringe brand includes multiple models, then the syringe brand and model information (such as 50 ml) need to be specified together to determine the size information of the syringe.

[0075] Among them, as Figure 3 shown, the syringe propulsion mechanism 22 can push the piston 24 to make a relative movement with respect to the syringe body 23. The processor 12 calculates the displacement of the piston 24 according to the relative movement, and then determines the drug dosage information according to the syringe model information input by the user and the displacement of the piston 24. The processor 12 displays the drug dosage information on the display screen through the output interface.

[0076] Among them, the value of the drug dosage information gradually decreases as the infusion pump driving mechanism 20 works.

[0077] In some embodiments, as Figure 4 shown, a structural block diagram of an infusion pump 10 is provided. In addition to including Figure 3 the devices shown, it further includes a first sensor 30 and a second sensor 31;

[0078] The first sensor 30 is linked to the syringe clamping mechanism 21, and the processor 12 is configured to determine the radial length of the syringe according to the feedback signal of the first sensor 30; the second sensor 31 is linked to the syringe pushing mechanism 22, and the processor 12 is configured to determine the displacement of the piston 24 relative to the syringe body 23 according to the feedback signal of the second sensor 31; the processor 12 is further configured to determine the drug amount information according to the radial length and displacement of the syringe.

[0079] In some embodiments, the first sensor includes a rotary potentiometer, a Hall sensor, or a magnetoresistive sensor.

[0080] In some embodiments, the second sensor 31 includes a slide potentiometer, a thin film potentiometer, a grating scale, or a capacitive grating scale.

[0081] Herein, the first sensor 30 being linked to the syringe clamping mechanism 21 means that as the opening and closing state of the syringe clamping mechanism 21 changes, the feedback signal of the first sensor 30 also changes accordingly. It can be understood that the feedback signal of the first sensor 30 is used to characterize the opening and closing dimension of the syringe clamping mechanism 21 (when the syringe clamping mechanism 21 clamps the syringe, the opening and closing dimension is equivalent to the radial length of the syringe). The second sensor 31 being linked to the syringe pushing mechanism 22 means that as the syringe pushing mechanism 22 moves, the feedback signal of the second sensor 31 also changes accordingly. It can be understood that the feedback signal of the second sensor 31 is used to characterize the displacement distance of the syringe pushing mechanism 22. When the syringe pushing mechanism 22 pushes the syringe piston 24 to move relative to the syringe body 23, the displacement distance of the syringe pushing mechanism 22 is equivalent to the displacement of the piston 24 relative to the syringe body 23. In the embodiment of the present invention, the syringe pushing mechanism 22 includes a slider 221, a pump body lead screw 222, a push rod 223, a push-pull box 224, and a plunger 225, and the slider 221 is connected to the plunger 225. Among them, the slider 221 and the piston 24 move in the same direction and at an equal distance. Herein, the equal-distance movement means that the displacement of the slider 221 is equivalent to the displacement of the piston 24, and the plunger 225 connected to the slider 221 will slide on the surface of the second sensor 31. When the syringe is installed, the displacement of the slider 221 is equal to the displacement of the piston 24, and at the same time, the displacement of the slider 221 is also equal to the displacement of the plunger 225 on the second sensor 31. Since the displacement of the plunger 225 on the second sensor 31 has a linear relationship with its output voltage, therefore, the displacement of the piston 24 can be directly obtained by using the output of the second sensor 31. Among them, the length of the syringe body can be determined according to the syringe model information. Then, the processor 12 determines the remaining drug amount length according to the displacement of the piston 24 and the length of the syringe body, and then the drug amount information can be obtained according to the remaining drug amount length and the radial length of the syringe. Herein, the drug amount information is the remaining volume of the drug.

[0082] In this embodiment, the radial length of the syringe can be measured in real time by setting the first sensor 30, and subsequent calculations are performed using the measured radial length in real time, which is beneficial to obtaining drug information more accurately. In addition, by setting the first sensor 30, when the user sets the infusion parameters, the processor can directly obtain the radial length of the syringe through the first sensor 30 and then prompt the user to select on the display screen, facilitating the user's operation.

[0083] In some embodiments, the infusion pump further includes a memory and a second sensor;

[0084] The memory is used to store the preset radial length of the syringe corresponding to the syringe model; the second sensor is linked with the syringe propulsion mechanism, and the processor is used to determine the displacement of the piston relative to the syringe body according to the feedback signal of the second sensor; the processor is used to call the radial length of the syringe stored in the memory and determine the drug amount information according to the radial length of the syringe and the displacement.

[0085] Among them, the radial length of the syringe corresponding to the syringe model information is preset in the memory, and there is no need to set the first sensor as in the Figure 4 illustrated embodiment.

[0086] Among them, the method of obtaining the displacement of the piston using the second sensor is the same as that described in the Figure 4 illustrated embodiment and will not be elaborated here.

[0087] Among them, after the processor can determine the length of the syringe body according to the syringe model information, the processor 12 determines the remaining drug amount length according to the displacement of the piston 24 and the length of the syringe body, and then obtains the drug amount information according to the radial length of the syringe stored in the memory and the remaining drug amount length.

[0088] In some embodiments, the processor is used to determine the displacement of the piston relative to the syringe body according to the feedback signal of the second sensor, including: the processor is used to determine the starting position of the piston and the current position of the piston according to the feedback signal of the second sensor; according to the starting position and the current position of the piston, determine the displacement of the piston relative to the syringe body.

[0089] Among them, as shown in Figure 4 , the length of the syringe body 23 (denoted as L) is obtained according to the syringe model information 1) After that, after installing the syringe filled with the liquid medicine onto the syringe pump, push the push-pull box 224 of the syringe pump until it just touches the position of the syringe push-button (this push-button position is the position at the handle), and then record the position at this time as the starting position of the piston 24 according to the second sensor 31. After that, push the piston 24 to inject the liquid medicine into the patient (during this process, the push-pull box 224 always just touches the position of the syringe push-button), and record the position at this time as the current position of the piston 24 in real time according to the second sensor 31. Subtract the current position from the starting position as the displacement of the piston 24 relative to the syringe body 23, denoted as L 2 After that, L 1 -L 2 is the remaining medicine length L, and then obtain the medicine amount information according to the radial length of the syringe and the remaining medicine length L

[0090] In some embodiments, as Figure 5 shown, a structural block diagram of an injection pump 10 is provided. In addition to including Figure 3 the device shown, it further includes a first sensor 30 and a second sensor 31; the first sensor 30 is linked with the syringe clamping mechanism 21, that is, the feedback signal of the first sensor 30 is associated with the opening and closing degree of the syringe clamping mechanism 21. The processor 12 is used to determine the radial length of the syringe according to the feedback signal of the first sensor 30; the second sensor 31 is linked with the syringe propulsion mechanism 22, that is, the feedback signal of the second sensor 31 is associated with the start of the stroke of the syringe propulsion mechanism 22. In some embodiments, the first sensor includes a rotary potentiometer or a Hall sensor or a magnetoresistive sensor

[0091] In some embodiments, the second sensor 31 includes an optocoupler or a travel switch or a contact switch or a Hall sensor

[0092] The processor 12 is used to determine the starting position of the piston 24 according to the feedback signal of the second sensor 31; and determine the displacement of the piston 24 relative to the syringe body 23 according to the starting position of the piston 24 and the number of revolutions of the motor

[0093] It should be noted that this embodiment can be applied to a screw-nut non-clutch type injection pump

[0094] Among them, as Figure 5 shown, add a syringe push-button detection bump in the center direction of the push handle of the push-pull box 224, and a second sensor 31 is arranged behind the bump

[0095] Among them, the processor obtains the length of the syringe body 23 (denoted as L 1), then, install the syringe filled with the liquid medicine onto the injection pump 10. The controller drives the motor to move until the pressing bump of the syringe just triggers the second sensor 31, and record the starting position of the piston at this time. Then, push the piston 24 to inject the liquid medicine into the patient, and record the number of rotations of the motor drive shaft at this time as R. According to the number of rotations of the motor drive shaft, the current position of the piston can be calculated. The current position of the piston is 0≤ΔL≤L T , where N is the gear reduction ratio between the motor and the pump body lead screw 222, S is the lead of the pump body lead screw 222, and L T is the total length of the lead screw. Subtract the current position from the starting position as the displacement of the piston 24 relative to the syringe body 23, denoted as L 2 . L 1 -L 2 is the remaining medicine length L, and then obtain the medicine amount information according to the radial length of the syringe and the remaining medicine length L.

[0096] Among them, the second sensor 31 can sense the position of the object to be measured, convert the position into a detectable electrical signal, and send the electrical signal to the processor 12 through the I / O system. The second sensor 31 can be a contact sensor that generates a signal when two objects contact and squeeze, such as a travel switch or a two-dimensional matrix position sensor; it can also be a proximity sensor that generates a signal when two objects approach a preset distance, such as an electromagnetic type, an optoelectronic type, a differential transformer type, an eddy current type, a capacitive type, a reed switch, an ultrasonic type or a Hall type. In the embodiment of the present invention, the object to be measured may include a baffle and a pressing bump of the syringe.

[0097] The above solution details how to determine the displacement of the piston 24 relative to the syringe 11 body 23. Next, how to determine the radial length of the syringe 11 will be introduced in detail. In some embodiments, as Figure 6 shown, the first sensor 30 is used to calculate the radial length of the syringe 11. The first sensor 30 is driven by the clamping arm 50 of the syringe 11 to rotate. The output voltage signal of the first sensor 30 has a linear relationship with the rotation angle. Therefore, the rotation angle θ of the clamping arm 50 of the syringe 11 can be obtained according to the output signal of the first sensor 30. Among them, the syringe 11 is installed on the injection pump and is restricted by the structural fixture 51 on the body of the injection pump. The vertical distance H from its center to the first sensor 30 is a fixed value, and the opening angle of the structural fixture 51 on the body of the injection pump is a fixed value α. Then, according to the geometric relationship, the radial length D of the syringe 11 is deduced as:

[0098]

[0099] Wherein, D is the radial length of the syringe 11, H is the vertical distance from the center of the syringe 11 to the first sensor 30, θ is the rotation angle θ of the clamping arm 50 of the syringe 11, α is the opening angle of the structural fixing member 50 on the body of the syringe pump, and d is the wall thickness of the syringe barrel of the syringe 11 built into the syringe pump.

[0100] According to the solution in the above embodiment, the radial length D of the syringe 11 and the remaining drug amount length L can be obtained. Then, the remaining drug amount (i.e., drug amount information) of the syringe can be obtained according to the following formula.

[0101]

[0102] Wherein, V is the drug amount information, D is the radial length of the syringe 11, and L is the remaining drug amount length.

[0103] In some embodiments, the syringe pump further includes a memory for storing the output function of the first sensor, and the output function is used to characterize the functional relationship between the feedback signal of the first sensor and the radial length of the syringe.

[0104] The processor is configured to determine the drug amount information according to the output function, the radial length of the syringe, and the displacement.

[0105] Among them, there may be errors in the detection of the radial length of the syringe. The errors are mainly composed of the following aspects: the mechanical dimension error of the syringe clamping arm and the linear error of the second sensor (for example, the linear error of the rotary potentiometer). The syringe pump can eliminate these errors by performing syringe radial length detection and calibration before leaving the factory. Specifically, two standard parts similar to the syringe with fixed lengths are used for calibration, that is, two standard parts are installed respectively, and the syringe pump records the corresponding diameter detection values and compares them with D a 、D b The two parameters are compared to correct the syringe diameter detection function (i.e., the output function of the first sensor) built into the syringe pump. Then, according to the output function of the first sensor, the radial length of the syringe, and the displacement, the drug amount information can be determined more accurately.

[0106] In some embodiments, the syringe pump further includes a memory for storing the output function of the second sensor, and the output function is used to characterize the functional relationship between the feedback signal of the second sensor and the piston displacement of the syringe.

[0107] The processor is configured to determine the drug amount information in the syringe pump according to the output function, the radial length of the syringe, and the displacement.

[0108] In the embodiments of the present invention, there may be errors in the detection of the pulling length of the syringe, and the errors are mainly composed of the following aspects: the lead error of the pump body screw rod, gear meshing, the linear error of the second sensor (for example, the linear error of the slip potentiometer), and the rotation error of the motor. The injection pump can eliminate these errors by performing syringe pulling length detection and calibration before leaving the factory. Specifically, two standard parts similar to the syringe with fixed lengths (L a and L b ) are respectively installed on the injection pump, and then the push-pull box is pushed until it just touches the push button of the standard part. The injection pump records the detection values corresponding to the two standard parts, and corrects the built-in syringe pulling length detection function (i.e., the output function of the second sensor) of the injection pump according to the comparison results of these detection values with L a and L b . Then, according to the output function of the second sensor, the radial length and displacement of the syringe, the drug amount information can be determined more accurately.

[0109] In some embodiments, according to the output function of the first sensor, the output function of the second sensor, the radial length and displacement of the syringe, the drug amount information in the injection pump is determined.

[0110] Among them, the processor calibrates the radial length of the syringe according to the output function of the first sensor to obtain the calibrated radial length of the syringe, calibrates the displacement of the piston according to the output function of the second sensor to obtain the calibrated displacement of the piston, and then can determine the drug amount information more accurately according to the calibrated radial length of the syringe and the calibrated displacement of the piston.

[0111] In some embodiments, the injection pump includes an injection pump drive mechanism, a syringe clamping mechanism, a syringe propulsion mechanism, a processor, an output interface, and a display screen; the syringe clamping mechanism is used to clamp the syringe body, the injection pump drive mechanism is used to drive the syringe propulsion mechanism to push the piston of the syringe so that the piston makes a relative movement with the syringe body, the processor is used to be connected to the display screen through the output interface, and after the syringe is clamped in the syringe clamping mechanism and the user inputs the syringe brand information and flow rate, the injection time information is displayed on the display screen, and the injection time information changes as the injection pump drive mechanism works.

[0112] Among them, the injection time information is the remaining infusion time (remaining time), and the injection time also gradually decreases as the syringe drive mechanism 20 works.

[0113] In the embodiments of the present invention, after the drug amount information is determined, combined with the input flow rate of the user, the remaining injection time T (i.e., the injection time information) can be calculated.

[0114]

[0115] Among them, the drug amount information is a volume information, denoted as V, and S is the input flow rate.

[0116] Among them, the description related to the drug amount information is consistent with the content described in each of the above embodiments, and will not be elaborated here.

[0117] In some embodiments, the injection pump further includes a first sensor and a second sensor; the first sensor is linked with the syringe clamping mechanism, and the processor is configured to determine the radial length of the syringe according to the feedback signal of the first sensor; the second sensor is linked with the syringe propulsion mechanism, and the processor is configured to determine the displacement of the piston relative to the syringe body according to the feedback signal of the second sensor; the processor is further configured to determine the injection time information according to the radial length of the syringe, the displacement, and the flow rate.

[0118] In some embodiments, the first sensor includes a rotary potentiometer, a Hall sensor, or a magnetoresistive sensor. The second sensor includes a slide potentiometer, a thin-film potentiometer, a grating scale, or a capacitive grating scale.

[0119] Among them, the related descriptions of the displacement of the piston relative to the syringe body, the radial length of the syringe, and the injection time information are consistent with the content described in each of the above embodiments, and will not be elaborated here.

[0120] In some embodiments, the injection pump further includes a memory, and the memory is configured to store the output function of the first sensor, and the output function is used to characterize the functional relationship between the feedback signal of the first sensor and the radial length of the syringe; the processor is configured to determine the injection time information according to the output function, the radial length of the syringe, the displacement, and the flow rate.

[0121] Among them, the related descriptions of the output function, the radial length of the syringe, the displacement, the flow rate, and the injection time information are consistent with the content described in each of the above embodiments, and will not be elaborated here.

[0122] In some embodiments, the injection pump further includes a memory and a second sensor; the memory is configured to store the radial length of the syringe corresponding to the preset syringe model; the second sensor is linked with the syringe propulsion mechanism, and the processor is configured to determine the displacement of the piston relative to the syringe body according to the feedback signal of the second sensor; the processor is configured to call the radial length of the syringe stored in the memory, and determine the injection time information according to the radial length of the syringe, the displacement, and the flow rate.

[0123] Among them, the related descriptions of the radial length of the syringe, the displacement, the flow rate, and the injection time information, etc. are consistent with the content described in each of the above embodiments, and will not be elaborated here.

[0124] In some embodiments, the processor is configured to determine the displacement of the piston relative to the syringe body according to the feedback signal of the second sensor, including:

[0125] The processor is configured to determine the starting position and the current position of the piston according to the feedback signal of the second sensor;

[0126] Determine the displacement of the piston relative to the syringe body based on the starting position and the current position of the piston.

[0127] The relevant descriptions regarding the starting position, the current position of the piston, the injection time information, etc. are consistent with the descriptions in the above respective embodiments, and will not be elaborated here.

[0128] In some embodiments, the processor is configured to determine the displacement of the piston relative to the syringe body according to the feedback signal of the second sensor, including:

[0129] The processor is configured to determine the starting position of the piston according to the feedback signal of the second sensor;

[0130] Determine the displacement of the piston relative to the syringe body based on the starting position of the piston and the number of revolutions of the motor.

[0131] The relevant descriptions regarding the starting position of the piston, the number of revolutions of the motor, the injection time information, etc. are consistent with the descriptions in the above respective embodiments, and will not be elaborated here.

[0132] In some embodiments, the injection pump further includes a memory for storing the output function of the second sensor, and the output function is used to characterize the functional relationship between the feedback signal of the second sensor and the piston displacement of the syringe;

[0133] The processor is configured to determine the injection time information of the injection pump according to the output function, the radial length and the displacement of the syringe.

[0134] The relevant descriptions regarding the output function, the radial length of the syringe, the displacement, the flow rate and the injection time information are consistent with the descriptions in the above respective embodiments, and will not be elaborated here.

[0135] In some embodiments, the injection pump further includes a memory for storing the output function of the first sensor, and the output function is used to characterize the functional relationship between the feedback signal of the first sensor and the radial length of the syringe;

[0136] The processor is configured to determine the injection time information according to the output function, the radial length of the syringe, the displacement and the flow rate.

[0137] Wherein, after the processor determines the drug amount information according to the output function, the radial length of the syringe and the displacement, the injection time information is determined according to the drug amount information and the flow rate.

[0138] Among them, the description related to the drug amount information is consistent with the content described in the above embodiments, and will not be elaborated here.

[0139] In some embodiments, the infusion pump further includes a memory for storing the output function of the second sensor, and the output function is used to characterize the functional relationship between the feedback signal of the second sensor and the piston displacement of the syringe.

[0140] The processor is configured to determine the infusion time information of the infusion pump according to the output function, the radial length of the syringe, and the displacement.

[0141] Among them, after the processor determines the drug amount information according to the output function, the radial length of the syringe, and the displacement, the infusion time information is determined according to the drug amount information and the flow rate.

[0142] In some embodiments, the processor determines the infusion time information according to the output function of the first sensor, the output function of the second sensor, the radial length of the syringe, the displacement, and the flow rate.

[0143] Among them, the processor may determine the drug amount information according to the output function, the radial length of the syringe, and the displacement, and then determine the infusion time information according to the drug amount information and the flow rate.

[0144] In some embodiments, as Figure 7 shown, a structural block diagram of an infusion pump 10 is provided. The infusion pump 10 includes an infusion pump driving mechanism 20, a syringe clamping mechanism 21, a syringe propulsion mechanism 22, a processor 12, an output interface 13, and a display screen 14.

[0145] The syringe clamping mechanism 21 is configured to clamp the syringe body 23, and the infusion pump driving mechanism 20 is configured to drive the syringe propulsion mechanism 22 to push the piston 24 of the syringe, so that the piston 24 makes a relative movement with the syringe body 23. The processor 12 is configured to be connected to the display screen 14 through the output interface 13. After the syringe is clamped by the syringe clamping mechanism 21 and the user inputs the syringe brand information and the flow rate, the drug amount information and / or the infusion time information is displayed on the display screen 14; the drug amount information and / or the infusion time information changes as the infusion pump driving mechanism 20 works; among them, the drug amount information or the infusion time information is displayed in a first display mode; the ratio of the drug amount information to the total infusion volume, or the comparison of the infusion time information to the total infusion time, is displayed in a second display mode; the first display mode and the second display mode include one or a combination type of text, numbers, or graphics; the first display mode is different from the second display mode.

[0146] Among them, the difference between the first display mode and the second display mode includes: different types or different colors. When the graph is a prompt progress bar, the specific value of the drug amount information (remaining amount) is displayed on the display interface of the syringe pump. In addition, a prompt progress bar for the drug amount information is also displayed on the same interface. When the drug amount information or the injection time information is greater than the first preset threshold, the color of the prompt progress bar is the first preset color; when the drug amount information or the injection time information is less than the first preset threshold and greater than the second preset threshold, the color of the prompt progress bar is the second preset color; when the drug amount information or the injection time information is less than the second preset threshold, the color of the prompt progress bar is the third preset color. The first preset color, the second preset color, and the third preset color may differ in hue, brightness, or saturation. For example, as Figure 8A shown, when the drug amount information (40 ml) is greater than the first preset threshold (30 ml), the color of the prompt progress bar is the first preset color (e.g., green 801); when the drug amount information (15 ml) is less than the first preset threshold (30 ml) and greater than the second preset threshold (10 ml), the color of the prompt progress bar is the second preset color (e.g., yellow 803); when the drug amount information (5 ml) is less than the second preset threshold (10 ml), the color of the prompt progress bar is the third preset color (e.g., red 805). Of course, the processor can also adjust the color or size of the progress bar from other dimensions of the drug amount information (such as the proportion of the remaining amount to the total infusion amount). As Figure 8B shown, when the injection time information (2h30min) is greater than the first preset threshold (2h), the color of the prompt progress bar is the first preset color (e.g., green 807); when the injection time information (1h30min) is less than the first preset threshold (2h) and greater than the second preset threshold (1h), the color of the prompt progress bar is the second preset color (e.g., yellow 809); when the injection time information (30min) is less than the second preset threshold (1h), the color of the prompt progress bar is the third preset color (e.g., red 811). Of course, the processor can also adjust the color or size of the progress bar from other dimensions of the injection time information (such as the proportion of the remaining time to the total infusion time).

[0147] In some embodiments, the processor may also only display one display mode including drug amount information or injection time information on the display interface, such as Figure 8C and 8DAs shown, only the remaining quantity prompt progress bar or the remaining time prompt progress bar can be displayed on the display interface. In some of these embodiments, the processor can also, by recognizing that the user makes a gesture input or contact at the position where the progress bar is located, at this time, the processor can also display the remaining quantity or the remaining time in detail in another display mode on the display interface (819 or 827). Of course, in some of these embodiments, the processor can also, by recognizing that the user makes a gesture input or contact at the position where the progress bar is located, at this time, the processor can switch to another display interface, and this display interface only displays the remaining quantity or the remaining time in detail in another display mode.

[0148] In some embodiments, when the drug quantity information and / or the injection time information meet the preset conditions, the processor will send out a reminder signal.

[0149] Among them, when the drug quantity information and / or the injection time information is less than the third preset threshold (for example, the third preset threshold is 3 ml), the processor will send out a reminder signal. Specifically, the processor triggers the display screen, the speaker, the alarm light, etc. to send out a reminder signal, reminding that the drug quantity is insufficient and a drug change is needed. For example, as Figure 9A shown, the information "The infusion is about to be completed! Please prepare the drug in time" is displayed on the display screen, and the display position of this reminder information can be displayed in a prominent color display mode, such as red. In some embodiments, the user of the display frame of this reminder information can close it by touching or by contacting other controls on the display interface, so as not to block other important infusion information of the infusion pump.

[0150] Among them, the preset conditions are set according to the time for medical staff to configure a tube of drug. When the drug quantity information and / or the injection time information meet the preset conditions, there is still some remaining drug quantity for the patient to receive infusion. During the period when the patient receives infusion with the remaining drug quantity, the medical staff can complete the configuration of a tube of drug.

[0151] Among them, the alarm light can respond to the drive of the processor alone, and the alarm light can also cooperate with the speaker correspondingly to respond to the drive of the processor. For example, the light changes in color or brightness with the tone and frequency of the alarm sound.

[0152] In some embodiments, the processor determines the infusion end time according to the injection time information and the current time. When the difference between the infusion end time and the preset shift change time is less than the third preset threshold, the processor will send out a reminder signal before the preset shift change time.

[0153] Among them, the processor determines the infusion end time according to the injection time information and the current time. By comparing the difference between the infusion end time and the preset shift time with a third preset threshold, it determines whether the infusion end time is close to the preset shift time. When the infusion end time is close to the preset shift time, a reminder signal will be sent to remind to prepare medicine before the shift. Figure 9B as shown.

[0154] In some embodiments, the display interface of the syringe pump can be as Figure 10 shown, where the display interface shows the injection time information (remaining time) and the drug amount information (remaining volume), and also simultaneously displays important parameters during the injection process of the syringe pump, such as the drug name (sufentanil), flow rate, infusion mode, consumables, and can also include some injection history information, pressure information, etc. The same interface can also display some soft controls for controlling the syringe pump, such as fast push or pause. By touching the fast push control or making a gesture input based on the fast push control, the processor can be driven to accelerate the injection. By touching the pause control or making a gesture input based on the pause control, the processor can be driven to stop the working of the syringe pump drive mechanism. By displaying the drug amount information and / or injection time information on the display interface of the syringe pump during the injection process, it greatly facilitates the medical staff, enabling the medical staff to make the next work arrangement according to the drug amount information and / or injection time information, and also reducing the need to frequently pay attention to the injection progress of the syringe pump.

[0155] In some embodiments, a method for confirming infusion information is provided. This method is applied to a syringe pump, and the syringe pump includes a syringe pump drive mechanism, a syringe clamping mechanism, a syringe propulsion mechanism, a processor, an output interface, and a display screen. The method includes:

[0156] Clamp the syringe on the syringe clamping mechanism;

[0157] Input the syringe model information;

[0158] Display the drug amount information;

[0159] The drug amount information changes as the syringe drive mechanism works. When the syringe pump drive mechanism works, it drives the syringe propulsion mechanism to push the piston of the syringe, so that the piston makes a relative movement with the syringe body to work.

[0160] In some embodiments, the syringe pump further includes a first sensor and a second sensor; the first sensor is linked with the syringe clamping mechanism, and the second sensor is linked with the syringe propulsion mechanism; before displaying the drug amount information, it further includes:

[0161] Determine the radial length of the syringe according to the feedback signal of the first sensor;

[0162] Determine the displacement of the piston relative to the syringe body according to the feedback signal of the second sensor;

[0163] Determine the remaining drug length according to the syringe model information and the displacement of the piston relative to the syringe body;

[0164] Determine the drug amount information according to the radial length of the syringe and the remaining drug length.

[0165] In some embodiments, the infusion pump further includes a memory and a second sensor; the memory is used to store the preset radial length of the syringe corresponding to the syringe model; the second sensor is linked with the syringe propulsion mechanism; before displaying the drug amount information, it further includes:

[0166] Call the radial length of the syringe stored in the memory;

[0167] Determine the displacement of the piston relative to the syringe body according to the feedback signal of the second sensor;

[0168] Determine the remaining drug length according to the syringe model information and the displacement of the piston relative to the syringe body;

[0169] Determine the drug amount information according to the radial length of the syringe and the remaining drug length.

[0170] In some embodiments, determining the displacement of the piston relative to the syringe body according to the feedback signal of the second sensor includes:

[0171] Determine the starting position of the piston and the current position of the piston according to the feedback signal of the second sensor;

[0172] Determine the displacement of the piston relative to the syringe body according to the starting position and the current position of the piston.

[0173] In some embodiments, determining the displacement of the piston relative to the syringe body according to the feedback signal of the second sensor includes:

[0174] Determine the starting position of the piston according to the feedback signal of the second sensor;

[0175] Determine the displacement of the piston relative to the syringe body according to the starting position of the piston and the number of revolutions of the motor.

[0176] In some embodiments, a method for confirming infusion information is provided. The method is applied to an infusion pump, and the infusion pump includes an infusion pump drive mechanism, a syringe clamping mechanism, a syringe propulsion mechanism, a processor, an output interface, and a display screen; the method includes:

[0177] Clamp the syringe on the syringe clamping mechanism;

[0178] Input the syringe model information and the flow rate;

[0179] Display injection time information;

[0180] The injection time information changes as the syringe driving mechanism operates. When the injection pump driving mechanism operates, it drives the syringe propulsion mechanism to push the piston of the syringe, causing relative movement between the piston and the syringe body to perform the operation.

[0181] In some embodiments, the injection pump further includes a first sensor and a second sensor; the first sensor is linked with the syringe clamping mechanism, and the second sensor is linked with the syringe propulsion mechanism; before displaying the injection time information, it further includes:

[0182] Determine the radial length of the syringe according to the feedback signal of the first sensor;

[0183] Determine the displacement of the piston relative to the syringe body according to the feedback signal of the second sensor;

[0184] Determine the injection time information according to the syringe radial length, displacement, and flow rate.

[0185] In some embodiments, the injection pump further includes a memory and a second sensor; the memory is used to store the preset radial length of the syringe corresponding to the syringe model; the second sensor is linked with the syringe propulsion mechanism; before displaying the injection time information, it further includes:

[0186] Call the radial length of the syringe stored in the memory;

[0187] Determine the displacement of the piston relative to the syringe body according to the feedback signal of the second sensor;

[0188] Determine the injection time information according to the syringe radial length, displacement, and flow rate.

[0189] In some embodiments, determining the injection time information according to the syringe radial length, displacement, and flow rate includes:

[0190] Determine the remaining drug amount length according to the syringe model information and the displacement of the piston relative to the syringe body;

[0191] Determine the drug amount information according to the syringe radial length and the remaining drug amount length;

[0192] Determine the injection time information according to the drug amount information and the flow rate.

[0193] In some embodiments, determining the displacement of the piston relative to the syringe body according to the feedback signal of the second sensor includes:

[0194] Determine the starting position of the piston and the current position of the piston according to the feedback signal of the second sensor;

[0195] Determine the displacement of the piston relative to the syringe body based on the starting position and the current position of the piston.

[0196] In some embodiments, determining the displacement of the piston relative to the syringe body according to the feedback signal of the second sensor includes:

[0197] Determine the starting position of the piston according to the feedback signal of the second sensor;

[0198] Determine the displacement of the piston relative to the syringe body according to the starting position of the piston and the number of revolutions of the motor.

[0199] The description of the above method embodiments is consistent with the description of each embodiment of the infusion pump, and will not be repeated here.

[0200] In some embodiments, a medical device is provided. The medical device is used to be connected to the infusion pump as described in the above embodiments through an output interface. A display device is provided on the medical device, and the display device is used to display the prompt information output by the output interface.

[0201] Among them, the above medical device may be a monitor, which is used to display the physiological parameters and personal information of the patient; the medical device may also be an infusion stand Dock. The infusion stand has a plurality of notches, on which a plurality of infusion pumps or syringe pumps can be placed respectively. The infusion pump or syringe pump is physically connected to the infusion stand and communicates or charges through a router or a power interface placed on the infusion stand. There is a display on the infusion stand for displaying the infusion information, alarm information or personal information of each inserted infusion pump or syringe pump.

[0202] In some embodiments, a storage medium is provided, storing executable instructions, configured to cause a processor to implement the steps in the method of any of the above embodiments when executing the executable instructions.

[0203] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to a memory, storage, database, or other medium used in the embodiments provided in the present application can include non-volatile and / or volatile memories. Non-volatile memories can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memories can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), Rambus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and Rambus dynamic RAM (RDRAM), etc.

[0204] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0205] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An injection pump, characterized in that, the injection pump includes an injection pump drive mechanism, a syringe clamping mechanism, a syringe propulsion mechanism, a processor, an output interface and a display screen; the syringe clamping mechanism is used to clamp the syringe body, the injection pump drive mechanism is used to drive the syringe propulsion mechanism to push the piston of the syringe, so that the piston makes a relative movement with the syringe body, the processor is used to connect with the display screen through the output interface, and after the syringe is clamped in the syringe clamping mechanism and the user inputs the syringe model information, the dosage information is displayed on the display screen; the dosage information changes with the operation of the injection pump drive mechanism; the injection pump further includes a first sensor; the processor obtains the rotation angle of the syringe clamping mechanism according to the feedback signal of the first sensor, and determines the radial length of the syringe according to the rotation angle; the processor determines at least the remaining dosage length along the length direction of the syringe body through the piston displacement, and obtains the dosage information according to the remaining dosage length and the radial length of the syringe, and the piston displacement is obtained according to the relative movement between the piston and the syringe body.

2. The injection pump according to claim 1, characterized in that, the injection pump further includes a second sensor; the second sensor is linked with the syringe propulsion mechanism, and the processor is used to determine the displacement of the piston relative to the syringe body according to the feedback signal of the second sensor; the processor is also used to determine the dosage information according to the radial length of the syringe and the displacement.

3. The injection pump according to claim 1, characterized in that, the injection pump further includes a memory, and the memory is used to store the output function of the first sensor, and the output function is used to characterize the functional relationship between the feedback signal of the first sensor and the radial length of the syringe; the processor is used to determine the dosage information according to the output function, the radial length of the syringe and the displacement.

4. The injection pump according to claim 1, characterized in that, the first sensor includes a rotary potentiometer, a Hall sensor or a magnetoresistive sensor.

5. The injection pump according to claim 2, characterized in that, the processor is used to determine the displacement of the piston relative to the syringe body according to the feedback signal of the second sensor, including: the processor is used to determine the starting position of the piston and the current position of the piston according to the feedback signal of the second sensor; According to the starting position and the current position of the piston, the displacement of the piston relative to the syringe body is determined.

6. The injection pump according to claim 2, characterized in that, the second sensor includes a slip potentiometer, a thin film potentiometer, a grating scale or a capacitive grating scale.

7. The injection pump according to claim 2 or 6, characterized in that, the processor is used to determine the displacement of the piston relative to the syringe body according to the feedback signal of the second sensor, including: The processor is configured to determine the starting position of the piston according to the feedback signal of the second sensor; determine the displacement of the piston relative to the syringe body according to the starting position of the piston and the number of revolutions of the motor.

8. The syringe pump according to claim 2, wherein, the syringe pump further includes a memory for storing an output function of the second sensor, and the output function is used to characterize the functional relationship between the feedback signal of the second sensor and the piston displacement of the syringe; the processor is configured to determine the drug amount information in the syringe pump according to the output function, the radial length of the syringe, and the displacement.

9. A syringe pump, wherein, the syringe pump includes a syringe pump driving mechanism, a syringe clamping mechanism, a syringe pushing mechanism, a processor, an output interface, and a display screen; the syringe clamping mechanism is configured to clamp the syringe body, the syringe pump driving mechanism is configured to drive the syringe pushing mechanism to push the piston of the syringe, so that the piston makes a relative movement with the syringe body, the processor is configured to be connected to the display screen through the output interface, and after the syringe is clamped in the syringe clamping mechanism and the user inputs the syringe model information and the flow rate, display the injection time information on the display screen, and the injection time information changes as the syringe pump driving mechanism works, and the injection time information is determined in combination with the flow rate and the drug amount information; the syringe pump further includes a first sensor; the processor obtains the rotation angle of the syringe clamping mechanism according to the feedback signal of the first sensor, and determines the radial length of the syringe according to the rotation angle; the processor determines at least the remaining drug amount length along the length direction of the syringe body through the piston displacement, and obtains the drug amount information according to the remaining drug amount length and the radial length of the syringe, and the piston displacement is obtained according to the relative movement between the piston and the syringe body.

10. The syringe pump according to claim 9, wherein, the syringe pump further includes a second sensor; the second sensor is linked with the syringe pushing mechanism, and the processor is configured to determine the displacement of the piston relative to the syringe body according to the feedback signal of the second sensor; the processor is further configured to determine the injection time information according to the radial length of the syringe, the displacement, and the flow rate.

11. The syringe pump according to claim 10, wherein, the syringe pump further includes a memory for storing an output function of the first sensor, and the output function is used to characterize the functional relationship between the feedback signal of the first sensor and the radial length of the syringe; the processor is configured to determine the injection time information according to the output function, the radial length of the syringe, the displacement, and the flow rate.

12. The syringe pump according to claim 9, wherein, the first sensor includes a rotary potentiometer, a Hall sensor, or a magnetoresistive sensor.

13. The syringe pump according to claim 10, wherein, The processor is configured to determine the displacement of the piston relative to the syringe body according to the feedback signal of the second sensor, including: The processor is configured to determine the starting position of the piston and the current position of the piston according to the feedback signal of the second sensor; Determine the displacement of the piston relative to the syringe body according to the starting position and the current position of the piston.

14. The syringe pump according to claim 10, wherein, The second sensor includes a slide potentiometer, a thin-film potentiometer, a grating scale or a capacitive grating scale.

15. The syringe pump according to claim 10 or 14, wherein, The processor is configured to determine the displacement of the piston relative to the syringe body according to the feedback signal of the second sensor, including: The processor is configured to determine the starting position of the piston according to the feedback signal of the second sensor; Determine the displacement of the piston relative to the syringe body according to the starting position of the piston and the number of revolutions of the motor.

16. The syringe pump according to claim 10 or 14, wherein, The syringe pump further includes a memory, and the memory is configured to store an output function of the second sensor, and the output function is used to characterize the functional relationship between the feedback signal of the second sensor and the piston displacement of the syringe; The processor is configured to determine the injection time information of the syringe pump according to the output function, the radial length of the syringe and the displacement.

17. A syringe pump, wherein, The syringe pump includes an injection pump driving mechanism, a syringe clamping mechanism, a syringe pushing mechanism, a processor, an output interface and a display screen; The syringe clamping mechanism is configured to clamp the syringe body, the injection pump driving mechanism is configured to drive the syringe pushing mechanism to push the piston of the syringe, so that the piston makes a relative movement with the syringe body, and the processor is configured to be connected to the display screen through the output interface. After the syringe is clamped in the syringe clamping mechanism and the user inputs the syringe model information and the flow rate, the drug amount information and / or the injection time information are displayed on the display screen; the drug amount information and / or the injection time information change as the injection pump driving mechanism works; wherein, the drug amount information or the injection time information is displayed in a first display mode; the ratio of the drug amount information to the total infusion volume, or the comparison of the injection time information to the total infusion time, is displayed in a second display mode; the first display mode and the second display mode include one or a combination of text, numbers or graphics; the first display mode is different from the second display mode; The syringe pump further includes a first sensor; The processor obtains the rotation angle of the syringe clamping mechanism according to the feedback signal of the first sensor, and determines the radial length of the syringe according to the rotation angle. The processor determines at least the remaining drug amount length in the length direction of the syringe body through the piston displacement, obtains the drug amount information according to the remaining drug amount length and the radial length of the syringe, and the piston displacement is obtained according to the relative movement between the piston and the syringe body.

18. The injection pump according to claim 17, wherein, the graphic includes a prompt progress bar; when the drug amount information or the injection time information is greater than a first preset threshold, the color of the prompt progress bar is a first preset color; when the drug amount information or the injection time information is less than the first preset threshold and greater than a second preset threshold, the color of the prompt progress bar is a second preset color; when the drug amount information or the injection time information is less than the second preset threshold, the color of the prompt progress bar is a third preset color.

19. The injection pump according to claim 18, wherein, the processor is configured to determine the infusion end time according to the injection time information and the current time, and when the difference between the infusion end time and the preset shift change time is less than a third preset threshold, a reminder signal is sent before the preset shift change time.

20. A method for confirming infusion information of an injection pump, wherein, the method is applied to an injection pump, and the injection pump includes an injection pump driving mechanism, a syringe clamping mechanism, a syringe pushing mechanism, a processor, an output interface, a first sensor and a display screen; the method includes: clamping the syringe body on the syringe clamping mechanism; inputting syringe model information; displaying drug amount information; the drug amount information changes as the injection pump driving mechanism works. When the injection pump driving mechanism works, it drives the syringe pushing mechanism to push the piston of the syringe, so that the piston makes a relative movement with the syringe body to work. The rotation angle of the syringe clamping mechanism is obtained according to the feedback signal of the first sensor, and the radial length of the syringe is determined according to the rotation angle, and at least the remaining drug amount length in the length direction of the syringe body is determined through the piston displacement. The drug amount information is obtained according to the remaining drug amount length and the radial length of the syringe, and the piston displacement is obtained according to the relative movement between the piston and the syringe body.

21. The method according to claim 20, wherein, the injection pump further includes a second sensor, and the second sensor is linked with the syringe pushing mechanism; before displaying the drug amount information, it further includes: determining the displacement of the piston relative to the syringe body according to the feedback signal of the second sensor; determining the remaining drug amount length according to the syringe model information and the displacement of the piston relative to the syringe body; determining the drug amount information according to the radial length of the syringe and the remaining drug amount length.

22. A method for confirming infusion information of an injection pump, wherein, The method is applied to an infusion pump, which includes an infusion pump driving mechanism, a syringe clamping mechanism, a syringe propulsion mechanism, a processor, an output interface, a first sensor, and a display screen; the method includes: Clamp the syringe body on the syringe clamping mechanism; Input the syringe model information and the flow rate; Display the injection time information; The injection time information changes as the infusion pump driving mechanism operates. When the infusion pump driving mechanism operates, it drives the syringe propulsion mechanism to push the piston of the syringe, so that the piston moves relative to the syringe body to perform the operation. The injection time information is determined in combination with the flow rate and the drug amount information. Among them, the rotation angle of the syringe clamping mechanism is obtained according to the feedback signal of the first sensor, and the radial length of the syringe is determined according to the rotation angle. And at least the remaining drug amount length in the length direction of the syringe body is determined by the piston displacement. The drug amount information is obtained according to the remaining drug amount length and the radial length of the syringe. The piston displacement is obtained according to the relative movement between the piston and the syringe body.

23. The method according to claim 22, wherein, the infusion pump further includes a second sensor, and the second sensor is linked with the syringe propulsion mechanism; before displaying the injection time information, it further includes: Determine the radial length of the syringe according to the feedback signal of the first sensor; Determine the displacement of the piston relative to the syringe body according to the feedback signal of the second sensor; Determine the injection time information according to the radial length of the syringe, the displacement, and the flow rate.

24. The method according to claim 23, wherein, the determining the injection time information according to the radial length of the syringe, the displacement, and the flow rate includes: Determine the remaining drug amount length according to the syringe model information and the displacement of the piston relative to the syringe body; Determine the drug amount information according to the radial length of the syringe and the remaining drug amount length; Determine the injection time information according to the drug amount information and the flow rate.

25. A medical device, wherein, the medical device is used to be connected to the infusion pump according to any one of claims 1-19 through the output interface, and a display device is provided on the medical device, and the display device is used to display the prompt information output by the output interface.

26. A storage medium stores executable instructions, which are configured to cause the processor to execute the executable instructions to implement the method according to any one of claims 20 to 24.

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