Nutrition device and nutrition system

Abstract

An embodiment of the present application provides a nutrient device and a nutrient system. The nutrient device is used to be connected to a nutrient pump and includes: a first pipeline, a second pipeline, and a third pipeline. Among them, the input end of the first pipeline is used to be connected to a first container, the output end of the first pipeline is connected to the third pipeline, and the first pipeline is also used to be connected to the nutrient pump so that the fluid in the first pipeline flows under the drive of the nutrient pump; the input end of the second pipeline is used to be connected to a second container, the output end of the second pipeline is connected to the first pipeline, and a first one-way valve is provided on the second pipeline; the third pipeline, the first pipeline, and the second pipeline communicate with each other, and a second one-way valve is provided on the third pipeline. This nutrient device and nutrient system have a simple structure and can achieve automatic exhaust and automatic flushing of the pipeline without adding an automatic flushing device, improving the efficiency of exhausting and flushing the pipeline.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of medical devices, and in particular, to a nutritional device and a nutritional system. Background Art

[0002] A liquid can be input to a patient through a nutritional pump to meet the patient's needs. For example, the liquid can be a nutrient solution.

[0003] In the actual use process, since the nutrient solution is usually a viscous liquid, the delivery pipeline may be blocked after a long-term continuous infusion. Therefore, after the nutritional pump delivers the nutrient solution for a period of time, a flushing solution is required to flush the delivery pipeline to ensure the smoothness of the delivery pipeline. In the related art, devices such as a dual-channel delivery pipeline and a liquid stop clamp can be set, and the switching between the nutrient solution delivery pipeline and the flushing solution delivery pipeline is realized through the manual operation of medical staff to achieve the flushing of the nutrient solution pipeline. In the above process, the switching process is relatively cumbersome and requires the manual operation of medical staff, resulting in a low flushing efficiency of the nutrient solution pipeline. Summary of the Invention

[0004] The embodiments of the present application provide a nutritional device and a nutritional system, which have a simple structure and can realize the automatic exhaust and automatic flushing of the pipeline without adding an automatic flushing device, improving the efficiency of exhausting and flushing the pipeline.

[0005] In a first aspect, the embodiments of the present application provide a nutritional device for connecting to a nutritional pump, including: a first pipeline, a second pipeline, and a third pipeline, wherein,

[0006] The input end of the first pipeline is used to connect to a first container, the output end of the first pipeline is connected to the third pipeline, and the first pipeline is also used to connect to the nutritional pump so that the fluid in the first pipeline flows under the drive of the nutritional pump;

[0007] The input end of the second pipeline is used to connect to a second container, the output end of the second pipeline is connected to the first pipeline, and a first one-way valve is provided on the second pipeline, and the first one-way valve is used to open when the pressure at the input end of the second pipeline is higher than the pressure at the output end of the second pipeline and the pressure difference between the input end and the output end of the second pipeline reaches a preset value;

[0008] The third pipeline, the first pipeline, and the second pipeline are interconnected, and a second one-way valve is provided on the third pipeline, and the second one-way valve is used to open when the pressure at the input end of the third pipeline is higher than the pressure at the output end of the third pipeline.

[0009] In a possible implementation, the nutrient feeder further includes a liquid storage bladder, wherein the liquid storage bladder is disposed on the first pipeline, and the liquid storage bladder communicates with the first pipeline.

[0010] In a possible implementation, the nutrient feeder further includes a three-way joint, and the three-way joint includes three joints, wherein

[0011] the three joints communicate with the input end of the third pipeline, the output end of the first pipeline, and the output end of the second pipeline respectively.

[0012] In a second aspect, an embodiment of the present application provides a nutrient system, including a nutrient pump and the nutrient feeder described in the first aspect. The nutrient pump includes a pump impeller and a control component. The pump impeller is connected to the first pipeline of the nutrient feeder and is used to drive the fluid in the first pipeline to flow; the control component is used to control the rotation of the pump impeller; wherein

[0013] When the control component controls the pump impeller to rotate in a first direction, the first one-way valve is in a closed state, and the fluid in the first pipeline flows to the third pipeline under the drive of the pump impeller;

[0014] When the control component controls the pump impeller to rotate in a second direction, the first one-way valve is in an open state, and the fluid in the second pipeline flows to the first pipeline under the drive of the pump impeller.

[0015] In a possible implementation, the nutrient pump further includes a pressure sensor and / or a timer, wherein,

[0016] When the pressure detected by the pressure sensor is greater than or equal to a preset pressure, and / or the timing duration of the timer is greater than or equal to a preset duration, the pump impeller rotates in the second direction to drive the liquid in the second container to the first pipeline;

[0017] When the first liquid volume flowing from the second container into the first pipeline is greater than or equal to a first threshold, the pump impeller rotates in the first direction to drive the liquid in the first pipeline to the third pipeline.

[0018] In a possible implementation, the control component of the nutrient pump is used to:

[0019] Determine the first liquid volume flowing from the second container into the first pipeline according to a preset flow rate and the rotation duration of the pump impeller in the second direction;

[0020] When the first liquid volume is greater than or equal to the first threshold, control the pump impeller to rotate in the first direction;

[0021] Determine the amount of the second liquid flowing from the first pipeline into the third pipeline according to the preset flow rate and the rotation duration of the pump impeller in the first direction;

[0022] When the amount of the second liquid is greater than or equal to a second threshold, control the pump impeller to stop rotating.

[0023] In a possible implementation manner, the nutrition pump further includes a sensor, wherein,

[0024] When the sensor detects that there is gas in the first pipeline, the pump impeller rotates in the first direction to drive the gas in the first pipeline to the third pipeline;

[0025] Determine the amount of the first gas flowing from the first pipeline into the third pipeline according to the preset flow rate and the rotation duration of the pump impeller in the first direction;

[0026] When the amount of the first gas is greater than or equal to a third threshold, or when the sensor detects that there is no gas in the first pipeline, control the pump impeller to stop rotating.

[0027] In a possible implementation manner, the nutrition pump further includes a sensor, wherein,

[0028] When the sensor detects that there is gas in the second pipeline, the pump impeller rotates in the second direction to drive the gas in the second pipeline to the first pipeline;

[0029] Determine the amount of the second gas flowing from the second pipeline into the first pipeline according to the preset flow rate and the rotation duration of the pump impeller in the second direction;

[0030] When the amount of the second gas is greater than or equal to a fourth threshold, or when the sensor detects that there is no gas in the second pipeline, control the pump impeller to rotate in the first direction;

[0031] Determine the amount of the third gas flowing from the first pipeline into the third pipeline according to the preset flow rate and the rotation duration of the pump impeller in the first direction;

[0032] When the amount of the third gas is greater than or equal to a fifth threshold, or when the sensor detects that there is no gas in the third pipeline, control the pump impeller to stop rotating.

[0033] In a possible implementation manner, the nutrition pump further includes an interaction component, and the interaction component includes a display screen and / or a key, wherein,

[0034] The display screen is used for information display and / or receiving instructions input by a user;

[0035] The button is used to receive instructions input by the user.

[0036] In a possible implementation, the nutrition pump further includes a warning component, and the warning component includes at least one of an indicator light, a buzzer, and a speaker. Wherein, the warning component is used to output warning information.

[0037] The nutrition device and nutrition system provided by the embodiments of the present application. The nutrition device is used to be connected to a nutrition pump and includes: a first pipeline, a second pipeline, and a third pipeline. Wherein, the input end of the first pipeline is used to be connected to a first container, the output end of the first pipeline is connected to the third pipeline, and the first pipeline is also used to be connected to the nutrition pump so that the fluid in the first pipeline flows under the drive of the nutrition pump; the input end of the second pipeline is used to be connected to a second container, the output end of the second pipeline is connected to the first pipeline, and a first one-way valve is arranged on the second pipeline. The first one-way valve is used to open when the pressure at the input end of the second pipeline is higher than the pressure at the output end of the second pipeline and the pressure difference between the input end and the output end of the second pipeline reaches a preset value; the third pipeline, the first pipeline, and the second pipeline are interconnected with each other, and a second one-way valve is arranged on the third pipeline. The second one-way valve is used to open when the pressure at the input end of the third pipeline is higher than the pressure at the output end of the third pipeline. This nutrition device and nutrition system have a simple structure and can achieve automatic exhaust and automatic flushing of the pipeline without adding an automatic flushing device, improving the efficiency of exhausting and flushing the pipeline. Description of the Drawings

[0038] The drawings here are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.

[0039] Figure 1 It is a schematic structural diagram of a nutrition device provided by an embodiment of the present application;

[0040] Figure 2 It is a schematic structural diagram of another nutrition device provided by an embodiment of the present application;

[0041] Figure 3 It is a schematic structural diagram of a nutrition system provided by an embodiment of the present application;

[0042] Figure 4A It is a schematic diagram of the operation process of the pump wheel rotating in the first direction in the nutrition system provided by an embodiment of the present application;

[0043] Figure 4B It is a schematic diagram of the operation process of the pump wheel rotating in the second direction in the nutrition system provided by an embodiment of the present application;

[0044] Figure 5 It is a schematic structural diagram of a nutrition pump provided by an embodiment of the present application;

[0045] Figure 6 This is the flowchart of the working process of the flushing mode provided by the embodiment of the present application;

[0046] Figure 7 This is the flowchart of the working process of exhausting air from the first pipeline in the nutrition system provided by the embodiment of the present application;

[0047] Figure 8 This is the flowchart of the working process of exhausting air from the second pipeline in the nutrition system provided by the embodiment of the present application;

[0048] Figure 9 This is the flowchart of the working process of exhausting air from the first pipeline and the second pipeline in the nutrition system provided by the embodiment of the present application.

[0049] Icon: 10 - nutrient dispenser; 101 - first pipeline; 102 - second pipeline; 103 - third pipeline; 104 - first one - way valve; 105 - second one - way valve; 106 - liquid storage sac; 107 - tee joint; 108 - first container; 109 - second container; 110 - first liquid - stopping clamp; 111 - second liquid - stopping clamp; 112 - connector; 20 - nutrient pump; 201 - control component; 201a - Microcontroller Unit (MCU); 201b - software system; 202 - execution component; 202a - pump impeller; 202b - motor; 202c - transmission system; 203 - detection component; 203a - pressure sensor; 203b - timer; 203c - ultrasonic sensor; 203d - Hall sensor; 203e - optocoupler; 204 - interaction component; 204a - display screen; 204b - key; 205 - warning component; 205a - indicator light; 205b - buzzer; 205c - speaker; 30 - nutrition system.

[0050] Through the above - mentioned drawings, specific embodiments of the present application have been shown, and there will be more detailed descriptions hereinafter. These drawings and text descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments.

[0051] It should be noted that: similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. Detailed Embodiments

[0052] Exemplary embodiments will be described in detail herein, and examples thereof are shown in the accompanying drawings. In the following description when referring to the accompanying drawings, unless otherwise indicated, the same numerals in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0053] The nutrient device and nutrient system provided in the embodiments of the present application can be applied to medical scenarios. The nutrient device includes a pipeline for liquid transmission, and the nutrient system includes a nutrient device and a nutrient pump; under the drive of the nutrient pump, the liquid in the pipeline can be controlled to flow in different directions to achieve the input of liquid to the patient or the automatic flushing of the pipeline.

[0054] In the related art, devices such as a dual-channel delivery pipeline and a liquid stop clamp can be set, and the switching between the nutrient solution delivery pipeline and the flushing solution delivery pipeline is realized through the manual operation of medical staff to achieve the flushing of the nutrient solution pipeline. In the above process, the switching process is relatively cumbersome and requires the manual operation of medical staff, resulting in a low flushing efficiency of the nutrient solution pipeline.

[0055] The nutrient system provided in the embodiments of the present application includes a nutrient device and a nutrient pump. The nutrient pump includes a pump wheel and a control component. The control component can control the pump wheel to rotate in a first direction or a second direction to drive the liquid in different pipelines of the nutrient device to flow in different directions, thereby realizing the automatic input of liquid to the patient or the flushing of the pipeline of the nutrient device without the need for manual operation by medical staff, improving the flushing efficiency of the pipeline of the nutrient device.

[0056] Next, the method shown in the present application will be described through specific embodiments. It should be noted that the following several embodiments can exist independently or be combined with each other. For the same or similar content, it will not be repeated in different embodiments.

[0057] Figure 1 It is a schematic structural diagram of a nutrient device provided in an embodiment of the present application. Please refer to Figure 2 , the nutrient device 10 includes a first pipeline 101, a second pipeline 102, and a third pipeline 103, where:

[0058] The input end of the first pipeline 101 is used to connect to a first container, the output end of the first pipeline 101 is connected to the third pipeline 103, and the first pipeline 101 is also used to connect to a nutrient pump so that the fluid in the first pipeline 101 flows under the drive of the nutrient pump.

[0059] The input end of the second pipeline 102 is used to connect to the second container. The output end of the second pipeline 102 is connected to the first pipeline 101. A first one-way valve 104 is provided on the second pipeline 102. The first one-way valve 104 is used to open when the pressure at the input end of the second pipeline 102 is higher than the pressure at the output end of the second pipeline 102, and the pressure difference between the input end and the output end of the second pipeline 102 reaches a preset value.

[0060] The third pipeline 103, the first pipeline 101, and the second pipeline 102 are interconnected. A second one-way valve 105 is provided on the third pipeline 103. The second one-way valve 105 is used to open when the pressure at the input end of the third pipeline 103 is higher than the pressure at the output end of the third pipeline 103.

[0061] Optionally, during actual use, the first pipeline 101 and the third pipeline 103 of the nutrient device 10 can form a main channel for separate use to achieve ordinary single-channel nutrient solution delivery; the second channel 102 can be used as a sub-channel and added to the above-mentioned main channel before or after infusion.

[0062] Optionally, the first pipeline 101 can include a partial extrusion pipeline, and the extrusion pipeline can be used to connect to the pump wheel of the nutrient pump. The material of the extrusion pipeline can be silicone material or non-silicone material. It should be noted that when the material of the extrusion pipeline is silicone material, the first pipeline 101 can also include 2 connectors for connecting other parts of the first pipeline 101 to this part of the extrusion pipeline.

[0063] By providing the first one-way valve 104 on the second pipeline 102, the fluid in the second pipeline 102 can only flow in the direction from the input end of the second pipeline 102 to the output end of the second pipeline 102. By providing the second one-way valve 105 on the third pipeline, the fluid flowing through the third pipeline 103 can only flow in the direction from the input end of the third pipeline 103 to the output end of the third pipeline 103.

[0064] Optionally, the first one-way valve 104 can be a separate component or a combined component, and the combined component can include a one-way valve component and an opening pressure component.

[0065] The nutrient device provided by the embodiment of the present application includes a first pipeline, a second pipeline, and a third pipeline. By setting the connection mode between the three pipelines and providing one-way valves on the second pipeline and the third pipeline, the flow direction of the liquid in the pipeline can be controlled, thereby realizing automatic flushing of the first pipeline without manual operation by medical staff, improving the efficiency of flushing the pipeline of the nutrient device.

[0066] Based on the above Embodiment 1, below, in combination withFigure 2 The structure of the nutrient device will be further introduced in detail.

[0067] Figure 2 This is a schematic diagram of the structure of another nutrient device provided by an embodiment of the present application. Please refer to Figure 2 Figure, the nutrient device 10 may further include at least one of the following: a liquid storage bladder 106, a three-way joint 107, a first container 108, a second container 109, a first liquid stop clamp 110, a second liquid stop clamp 111, and a connector 112. Among them, Figure 2 Figure shows the liquid storage bladder 106, the three-way joint 107, the first container 108, the second container 109, the first liquid stop clamp 110, the second liquid stop clamp 111, and the connector 112.

[0068] The liquid storage bladder 106 can be arranged on the first pipeline 101, and the liquid storage bladder 106 is communicated with the first pipeline 101. During the process of flushing the first pipeline 101 with the flushing liquid in the second container 109, the liquid storage bladder 106 can be used to hold the flushing liquid entering the first pipeline 101 to prevent the flushing liquid from entering the first container 108, thereby causing the nutrient solution in the first container 108 to be diluted.

[0069] The three-way joint 109 includes three joints. Among them, the three joints are respectively communicated with the input end of the third pipeline 103, the output end of the first pipeline 101, and the output end of the second pipeline 102. The three-way joint 109 can be used for communicating between the first pipeline 101, the second pipeline 102, and the third pipeline 103.

[0070] The input end of the first pipeline 101 is connected to the first container 108, and the input end of the second pipeline is connected to the second container 109. During actual use, the first container 108 and the second container 109 can be liquid storage bags or liquid storage bottles.

[0071] For example, for the scenarios of nutritional feeding or intravenous infusion, the first container 108 can be used to hold the medicinal liquid or nutrient solution, and the second container 109 can be used to hold the flushing liquid. The flushing liquid can be clear water or physiological saline.

[0072] For example, for the breast milk feeding of some premature infants, breast milk and breast milk fortifier can be mixed and infused to enhance the nutritional supplement of premature infants. At this time, the first container 108 can be used to hold breast milk, and the second container 109 can be used to hold breast milk fortifier.

[0073] The first pipeline 101 may further be provided with a first liquid stop clamp 110, and the second pipeline 102 may be provided with a second liquid stop clamp 111. The first liquid stop clamp or the second liquid stop clamp can be a single liquid stop clamp or a combination of multiple liquid stop clamps.

[0074] The input end of the connector 112 can be connected to the output end of the third channel 103, and the output end can be used to connect to a nasogastric tube. In practical applications, the connector 112 can be an Enfit connector.

[0075] The nutritional device provided by the embodiments of the present application can fix the working position of the nutritional pump on the first pipeline, and a first one-way valve with an opening pressure is arranged on the second pipeline, and a second one-way valve is arranged on the third pipeline. By combining the control of the rotation of the nutritional pump, the automatic air exhaust and automatic flushing functions of the nutritional system can be realized, thereby improving the air exhaust and flushing efficiency of the pipeline. At the same time, the setting of the liquid storage sac, the liquid stop clamp and the connector can prevent the nutrient solution from being diluted, and the connection method is more flexible.

[0076] Based on any of the above embodiments, hereinafter, in combination with Figure 3 the nutritional system shown in the embodiments of the present application will be described.

[0077] Figure 3 is a schematic structural diagram of a nutritional system provided by an embodiment of the present application. Please refer to Figure 3 , the nutritional system 30 can include a nutritional pump 20 and the nutritional device 10 shown in any of the above embodiments. In Figure 3 the shown embodiment, the nutritional device in the nutritional system is taken as Figure 2 the nutritional device shown in the embodiment as an example for description.

[0078] The nutritional pump 20 includes a pump wheel ( Figure 3 not shown in Figure 3 ) and a control component (

[0079] not shown in

[0080] ). The pump wheel is connected to the first pipeline 101 of the nutritional device 10 and is used to drive the fluid flow in the first pipeline 101; the control component is used to control the rotation of the pump wheel; wherein, when the control component controls the pump wheel to rotate in the first direction, the first one-way valve 104 is in a closed state, and the fluid in the first pipeline 101 flows to the third pipeline 103 under the drive of the pump wheel; when the control component controls the pump wheel to rotate in the second direction, the first one-way valve 104 is in an open state, and the fluid in the second pipeline 102 flows to the first pipeline 101 under the drive of the pump wheel. Figure 4A and Figure 4B , the operation processes of the two rotation directions of the pump wheel in the nutritional system will be described in detail.

[0081] Figure 4A Schematic diagram of the operation process of the impeller rotating in the first direction in the nutrition system provided by the embodiment of the present application. Please refer to Figure 4A , the impeller 202a is located on the first pipeline 101. When the impeller 202a rotates in the first direction, driven by the impeller 202a, the liquid in the first container 108 or the gas in the first pipeline 101 can flow along the first pipeline 101 to the third pipeline 103. At this time, the pressure at the output end of the second pipeline 102 is higher than the pressure at the input end of the second pipeline 102, and the pressure difference on both sides of the first check valve 104 is opposite to the opening direction, and the first check valve 104 is in a closed state, and the second pipeline 102 is not connected to the first pipeline 101 and the third pipeline 103.

[0082] Figure 4B Schematic diagram of the operation process of the impeller rotating in the second direction in the nutrition system provided by the embodiment of the present application. Please refer to Figure 4B , the impeller 202a is located on the first pipeline 101. When the impeller 202a rotates in the second direction, driven by the impeller 202a, the liquid or gas in the first pipeline 101 flows from the output end of the first pipeline 101 to the input end direction of the first pipeline 101, so that the pressure at the input end of the second pipeline 102 is higher than the pressure at the output end of the second pipeline 102. When the pressure difference on both sides of the first check valve 104 reaches a preset value, the first check valve 104 opens, and the liquid in the second container 109 or the gas in the second pipeline 102 can flow along the second pipeline 102 to the first pipeline 101. At this time, the first check valve 104 is in an open state, and the second pipeline 102 is connected to the first pipeline 101 and the third pipeline 103.

[0083] The nutrition system provided by the embodiment of the present application may include a nutrition pump and a nutrition device. By fixing the working position of the nutrition pump on the first pipeline, and providing a first check valve with an opening pressure on the second pipeline and a second check valve on the third pipeline, and combining the control of the rotation of the nutrition pump, the automatic exhaust and automatic flushing functions of the nutrition system can be realized, thereby improving the exhaust and flushing efficiency of the pipeline. At the same time, the setting of the liquid storage bag, the liquid stop clip and the connector can prevent the nutrient solution from being diluted, and the connection method is more flexible.

[0084] On the basis of any of the above embodiments, below, in combination with Figure 5 the nutrition pump shown in the embodiment of the present application will be described.

[0085] Figure 5 Schematic diagram of the structure of a nutrition pump provided by the embodiment of the present application. Please refer to Figure 5, the nutrition pump 20 may include at least one of the following components: a control component 201, an execution component 202, a detection component 203, an interaction component 204, and an early warning component 205.

[0086] The control component 201 may include a micro control unit 201a and a software system 201b. The control component 201 is respectively connected to the execution component 202, the detection component 203, the interaction component 204, and the early warning component 205, and the control component 201 can be used to control the operation of the execution component 202, the detection component 203, the interaction component 204, and the early warning component 205.

[0087] The execution component 202 may include at least one of a pump impeller 202a, a motor 202b, and a transmission system 202c. The execution component 202 can be used to provide power for the nutrition pump 20. For example, the pump impeller 202a can be connected to the first pipeline 101 of the nutrient device 10 to drive the fluid flow in the first pipeline 101.

[0088] The detection component 203 may include at least one of a pressure sensor 203a, a timer 203b, an ultrasonic sensor 203c, a Hall sensor 203d, and an optocoupler 203e. The detection component 203 can be used to collect information and send the collected information to the control component 201. For example, the pressure sensor 203a can detect whether the pressure in the pipeline exceeds a preset threshold and send the detection result to the control component 201 for the control component to perform control.

[0089] The interaction component 204 may include a display screen 204a and a key 204b. The interaction component 204 can be used for information display and receiving instructions input by the user. For example, the display screen 204a can be used for information display and / or receiving instructions input by the user. For example, the display screen 204a can display the selection interface of different working modes of the nutrition pump and the parameter setting interface under each working mode. For example, the key 204b can be used to receive instructions input by the user. For example, a selection instruction for any working mode of the nutrition pump input by the user can be received through the key.

[0090] The early warning component 205 may include at least one of an indicator light 205a, a buzzer 205b, and a speaker 205c. The early warning component 205 can be used to output early warning information. For example, when pipeline blockage, battery depletion, abnormal speed, etc. occur, early warning information in the form of a light signal or a sound signal can be issued through the early warning component 205.

[0091] The nutrient pump provided by the embodiment of the present application can be used in combination with the nutrient device of any of the above embodiments. By fixing the working position of the nutrient pump on the first pipeline and controlling the rotation of the nutrient pump, the automatic air exhaust and automatic flushing functions of the nutrient system can be realized, thereby improving the air exhaust and flushing efficiency of the pipeline.

[0092] The nutrient system provided by the embodiment of the present application has at least the following three modes: infusion / feeding mode, flushing mode, and air exhaust mode. Below, these three modes will be described separately.

[0093] Mode 1, Infusion / Feeding Mode

[0094] In this mode, the control component can control the pump wheel to rotate in the first direction, the first one-way valve is in the closed state, and the liquid in the first pipeline flows to the third pipeline under the drive of the pump wheel. The flow direction of the liquid can be as Figure 4A shown.

[0095] In this mode, the nutrient system can be used to provide the infusion / feeding function for patients. During actual use, an infusion / feeding mode selection button, a flushing mode selection button, and an air exhaust mode selection button can be set on the nutrient pump. The user can control the start or pause of the infusion / feeding mode by clicking the infusion / feeding mode selection button on the nutrient pump, so as to continuously or intermittently deliver liquid to the patient.

[0096] Mode 2, Flushing Mode

[0097] In this mode, the working mode of the nutrient pump is as follows: when the pressure detected by the pressure sensor of the nutrient pump is greater than or equal to the preset pressure, and / or the timing duration of the timer is greater than or equal to the preset duration, the control component can first control the pump wheel to rotate in the second direction to drive the liquid in the second container to the first pipeline; when the first liquid volume flowing from the second container into the first pipeline is greater than or equal to the first threshold, the control component then controls the pump wheel to rotate in the first direction to drive the liquid in the first pipeline to the third pipeline.

[0098] Optionally, during actual use, the flushing mode of the nutrient system can be executed automatically or by receiving a user instruction. For example, the user can execute the flushing mode by manually clicking the flushing mode selection button on the nutrient pump.

[0099] Below, in combination with Figure 6 , the working process of the flushing mode will be described in detail.

[0100] Figure 6 is the working flow chart of the flushing mode provided by the embodiment of the present application. Please refer to Figure 6 , this working process includes:

[0101] S601. When the pressure detected by the pressure sensor is greater than or equal to the preset pressure, and / or the timing duration of the timer is greater than or equal to the preset duration, the pump impeller rotates in the second direction to drive the liquid in the second container into the first pipeline.

[0102] During actual use, the preset pressure and the preset duration can be set according to experience. For example, the preset duration can be 4 hours.

[0103] S602. Determine the first liquid volume flowing from the second container into the first pipeline according to the preset flow rate and the rotation duration of the pump impeller in the second direction.

[0104] Optionally, the rotation duration of the pump impeller in the second direction can be determined by the reverse rotation duration of the motor. When the motor rotates in reverse, the pump impeller can rotate in the second direction, and at this time, the rotation duration of the pump impeller in the second direction is the reverse rotation duration of the motor.

[0105] Optionally, the preset flow rate can be set through the parameter setting interface corresponding to the flushing mode, or the preset flow rate can be determined by adjusting the rotation speed of the motor.

[0106] During actual operation, the first liquid volume can also be determined by the number of rotations of the pump impeller in the second direction. The specific process is as follows: when the pump impeller rotates one circle in the second direction, determine the single - flow liquid volume flowing from the second container into the first pipeline; determine the number of rotations of the pump impeller; multiply the number of rotations of the pump impeller by the single - flow liquid volume to determine the first liquid volume. For example, the single - flow liquid volume can be 4 mL, and the number of rotations can be 3 circles, then the first liquid volume is 12 mL.

[0107] S603. When the first liquid volume is greater than or equal to the first threshold, control the pump impeller to rotate in the first direction.

[0108] During actual operation, the first threshold can be set to control the first liquid volume in each flushing process to prevent the liquid in the second container from directly entering the first container during the flushing process, resulting in the contamination of the liquid in the first container.

[0109] Optionally, when there is no liquid storage bag on the first pipeline, the first threshold can be 90% of the maximum volume of the first pipeline. For example, if the maximum volume of the first pipeline is 10 mL, the first threshold can be 9 mL.

[0110] When there is a liquid storage bag on the first pipeline, the first threshold can be determined by the maximum volume of the liquid storage bag and the pipeline volume from the output end of the liquid storage bag to the output end of the first pipeline. For example, if the maximum volume of the liquid storage bag is 5 mL and the pipeline volume from the output end of the liquid storage bag to the output end of the first pipeline is 6 mL, then the first threshold can be 11 mL.

[0111] S604. Determine the amount of the second liquid flowing from the first pipeline into the third pipeline according to the preset flow rate and the rotation duration of the pump impeller in the first direction.

[0112] Optionally, the rotation duration of the pump impeller in the first direction can be determined by the forward rotation duration of the motor. When the motor rotates forward, the pump impeller can rotate in the first direction, and at this time, the rotation duration of the pump impeller in the first direction is the forward rotation duration of the motor.

[0113] S605. When the amount of the second liquid is greater than or equal to the second threshold, control the pump impeller to stop rotating.

[0114] Optionally, when there is no liquid storage bladder provided on the first pipeline, the second threshold can be the maximum volume of the first pipeline. For example, if the maximum volume of the first pipeline is 10 mL, the second threshold can be 10 mL.

[0115] When there is a liquid storage bladder provided on the first pipeline, the second threshold can be the sum of the maximum volume of the liquid storage bladder and the maximum volume of the first pipeline. For example, if the maximum volume of the liquid storage bladder is 5 mL and the maximum volume of the first pipeline is 10 mL, then the second threshold can be 15 mL.

[0116] The nutrition system provided by the embodiments of the present application may include a nutrition pump and a nutrition device. By fixing the working position of the nutrition pump on the first pipeline, providing a first one-way valve with an opening pressure on the second pipeline, providing a second one-way valve on the third pipeline, and combining the control of the rotation of the nutrition pump, the automatic flushing function of the nutrition system can be realized, thereby improving the exhaust and flushing efficiency of the pipeline. At the same time, the settings of the liquid storage bladder, the liquid stop clamp, and the connector can prevent the nutrient solution from being diluted, and the connection method is more flexible.

[0117] Mode 3. Exhaust mode

[0118] In this mode, when the nutrition system performs the exhaust treatment operation, the following three situations may be included:

[0119] Situation 1. Perform exhaust treatment on the first pipeline.

[0120] Situation 2. Perform exhaust treatment on the second pipeline.

[0121] Situation 3. Perform exhaust treatment on the first pipeline and the second pipeline.

[0122] For different exhaust situations, the nutrition system can execute different working processes. Below, the different working processes of the nutrition system in these three situations will be described separately.

[0123] Situation 1. Perform exhaust treatment on the first pipeline.

[0124] In this case, the control component can control the impeller to rotate in the first direction to drive the gas in the first pipeline to the third pipeline and then discharge it.

[0125] Next, in combination with Figure 7 , the specific working process of exhausting the first pipeline in the nutrition system will be described in detail.

[0126] Figure 7 The working flow chart of exhausting the first pipeline in the nutrition system provided by the embodiment of the present application. Please refer to Figure 7 , and this working process includes:

[0127] S701. When the sensor detects that there is gas in the first pipeline, the impeller rotates in the first direction to drive the gas in the first pipeline to the third pipeline.

[0128] Optionally, the sensor can be any existing sensor for detecting gas. For example, the sensor can be an ultrasonic sensor.

[0129] S702. Determine the first gas volume flowing from the first pipeline into the third pipeline according to the preset flow rate and the rotation duration of the impeller in the first direction.

[0130] Optionally, the first gas volume can also be determined by the number of turns of the impeller rotating in the first direction. The specific determination process is as follows: when the impeller rotates one turn in the first direction, determine the single - time gas volume flowing from the first pipeline into the third pipeline; determine the number of turns of the impeller rotation; multiply the number of turns of the impeller rotation by the single - time gas volume flowing in, and determine it as the first gas volume.

[0131] S703. When the first gas volume is greater than or equal to the third threshold, or when the sensor detects that there is no gas in the first pipeline, control the impeller to stop rotating.

[0132] During the actual operation, the third threshold can be set to ensure that the gas in the first pipeline and the third pipeline is emptied. Optionally, the third threshold can be the sum of the maximum volume of the first pipeline and the maximum volume of the third pipeline.

[0133] The nutrition system provided by the embodiment of the present application can flexibly implement the automatic exhaust function of the nutrition system for different exhaust situations, improving the convenience of using the nutrition system.

[0134] Case 2. Exhaust the second pipeline.

[0135] In this case, the control component can first control the impeller to rotate in the second direction to drive the gas in the second pipeline to the first pipeline; then control the impeller to rotate in the first direction to drive the gas in the first pipeline to the third pipeline and then discharge it.

[0136] Next, in combination with Figure 8 , the specific workflow for exhausting the second pipeline in the nutrition system will be described in detail.

[0137] Figure 8 The following is the workflow diagram for exhausting the second pipeline in the nutrition system provided by the embodiment of the present application. Please refer to Figure 8 , and this workflow includes:

[0138] S801. When the sensor detects that there is gas in the second pipeline, the pump impeller rotates in the second direction to drive the gas in the second pipeline to the first pipeline.

[0139] S802. Determine the second gas volume flowing from the second pipeline into the first pipeline according to the preset flow rate and the rotation duration of the pump impeller in the second direction.

[0140] S803. When the second gas volume is greater than or equal to the fourth threshold, or when the sensor detects that there is no gas in the second pipeline, control the pump impeller to rotate in the first direction.

[0141] Optionally, the fourth threshold can be the maximum volume of the second pipeline. For example, when the maximum volume of the second pipeline is 8 mL, the fourth threshold can be 8 mL.

[0142] S804. Determine the third gas volume flowing from the first pipeline into the third pipeline according to the preset flow rate and the rotation duration of the pump impeller in the first direction.

[0143] S805. When the third gas volume is greater than or equal to the fifth threshold, or when the sensor detects that there is no gas in the third pipeline, control the pump impeller to stop rotating.

[0144] Optionally, the fifth threshold can be the sum of the maximum volumes of the first pipeline and the third pipeline.

[0145] The nutrition system provided by the embodiment of the present application can flexibly implement the automatic exhaust function of the nutrition system for different exhaust situations, improving the convenience of using the nutrition system.

[0146] Case 3. Exhaust the first pipeline and the second pipeline.

[0147] In this case, the pump impeller can be controlled to rotate in the first direction first to drive the gas in the first pipeline to the third pipeline and then exhaust it; then control the pump impeller to rotate in the second direction to drive the gas in the second pipeline into the first pipeline; finally, control the pump impeller to rotate in the first direction again to drive the gas in the first pipeline to the third pipeline and then exhaust it.

[0148] Next, in combination with Figure 9, the specific workflow for exhausting the first pipeline in the nutrition system will be described in detail.

[0149] Figure 9 This is the workflow diagram for exhausting the first pipeline and the second pipeline in the nutrition system provided by the embodiments of the present application. Please refer to Figure 9 , and this workflow includes:

[0150] S901. When the sensor detects that there is gas in the first pipeline and the second pipeline, the pump impeller rotates in the first direction to drive the gas in the first pipeline to the third pipeline;

[0151] S902. Determine the first gas volume flowing from the first pipeline into the third pipeline according to the preset flow rate and the rotation duration of the pump impeller in the first direction.

[0152] S903. When the first gas volume is greater than or equal to the third threshold, or when the sensor detects that there is no gas in the first pipeline, control the pump impeller to rotate in the second direction.

[0153] S904. Determine the second gas volume flowing from the second pipeline into the first pipeline according to the preset flow rate and the rotation duration of the pump impeller in the second direction.

[0154] S905. When the second gas volume is greater than or equal to the fourth threshold, or when the sensor detects that there is no gas in the second pipeline, control the pump impeller to rotate in the first direction.

[0155] S906. Determine the third gas volume flowing from the first pipeline into the third pipeline according to the preset flow rate and the rotation duration of the pump impeller in the first direction.

[0156] S907. When the third gas volume is greater than or equal to the fifth threshold, or when the sensor detects that there is no gas in the third pipeline, control the pump impeller to stop rotating.

[0157] The nutrition system provided by the embodiments of the present application can flexibly implement the automatic exhaust function of the nutrition system for different exhaust situations, improving the convenience of using the nutrition system.

[0158] In various embodiments of the present application, without special instructions and logical conflicts, the terms and / or descriptions between different embodiments are consistent and can be cross-referenced to each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships. The term "and / or" in this document is merely a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, both A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally represents an "or" relationship between the preceding and following associated objects; in a formula, the character " / " represents a "division" relationship between the preceding and following associated objects.

[0159] It can be understood that the various numerical numbers involved in the embodiments of the present application are only for the convenience of description and do not limit the scope of the embodiments of the present application.

[0160] It can be understood that in the embodiments of the present application, the magnitude of the sequence numbers of the above processes does not mean the order of execution. The order of execution of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application. Those skilled in the art will easily think of other implementation schemes of the present application after considering the specification and practicing the invention disclosed herein. The present application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of the present application and include common general knowledge or conventional technical means in the technical field not disclosed in the present application. The specification and embodiments are only regarded as exemplary, and the true scope of the present application is pointed out by the claims.

[0161] It should be understood that the present application is not limited to the precise structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.

Claims

1. A nutrient device, for connecting with a nutrient pump, characterized in that, Comprising: A first pipeline, a second pipeline and a third pipeline, wherein, The input end of the first pipeline is used to connect to a first container, the output end of the first pipeline is connected to the third pipeline, and the first pipeline is also used to connect to the nutrient pump so that the fluid in the first pipeline flows under the drive of the nutrient pump; The input end of the second pipeline is used to connect to a second container, the output end of the second pipeline is connected to the first pipeline, and a first one-way valve is provided on the second pipeline, and the first one-way valve is used to open when the pressure at the input end of the second pipeline is higher than the pressure at the output end of the second pipeline and the pressure difference between the input end and the output end of the second pipeline reaches a preset value; The third pipeline, the first pipeline and the second pipeline communicate with each other, and a second one-way valve is provided on the third pipeline, and the second one-way valve is used to open when the pressure at the input end of the third pipeline is higher than the pressure at the output end of the third pipeline.

2. The nutrient applicator according to claim 1, wherein The nutrient device further includes a liquid storage bladder, wherein the liquid storage bladder is arranged on the first pipeline and communicates with the first pipeline.

3. The nutrient applicator according to any one of claims 1 or 2, characterized in that, The nutrient device further includes a three-way joint, and the three-way joint includes three joints, wherein, The three joints are respectively communicated with the input end of the third pipeline, the output end of the first pipeline and the output end of the second pipeline.

4. A nutritional system, characterized in that, Comprising a nutrient pump and the nutrient device according to any one of claims 1-3, the nutrient pump includes a pump impeller and a control component, the pump impeller is connected to the first pipeline of the nutrient device and is used to drive the fluid in the first pipeline to flow; the control component is used to control the rotation of the pump impeller; Wherein When the control component controls the pump impeller to rotate in a first direction, the first one-way valve is in a closed state, and the fluid in the first pipeline flows to the third pipeline under the drive of the pump impeller; When the control component controls the pump impeller to rotate in a second direction, the first one-way valve is in an open state, and the fluid in the second pipeline flows to the first pipeline under the drive of the pump impeller.

5. The nutritional system according to claim 4, characterized in that, The nutrient pump further includes a pressure sensor and / or a timer, wherein, When the pressure detected by the pressure sensor is greater than or equal to a preset pressure, and / or the timing duration of the timer is greater than or equal to a preset duration, the pump impeller rotates in the second direction to drive the liquid in the second container to the first pipeline; When the first liquid volume flowing from the second container into the first pipeline is greater than or equal to a first threshold value, the pump impeller rotates in the first direction to drive the liquid in the first pipeline to the third pipeline.

6. The nutrition system according to claim 5, characterized in that, The control component of the nutrient pump is used to: Determine the first liquid volume flowing from the second container into the first pipeline according to a preset flow rate and the rotation duration of the pump impeller in the second direction; When the first liquid volume is greater than or equal to the first threshold value, control the pump impeller to rotate in the first direction; Determine the second liquid volume flowing from the first pipeline into the third pipeline according to the preset flow rate and the rotation duration of the pump impeller in the first direction; When the second liquid volume is greater than or equal to the second threshold, control the pump impeller to stop rotating.

7. The nutritional system according to claim 4, characterized in that, The nutrient pump further includes a sensor, wherein When the sensor detects that there is gas in the first pipeline, the pump impeller rotates in the first direction to drive the gas in the first pipeline to the third pipeline; Determine the first gas volume flowing from the first pipeline into the third pipeline according to the preset flow rate and the rotation duration of the pump impeller in the first direction; When the first gas volume is greater than or equal to the third threshold, or when the sensor detects that there is no gas in the first pipeline, control the pump impeller to stop rotating.

8. The nutrition system according to claim 4, characterized in that, The nutrient pump further includes a sensor, wherein When the sensor detects that there is gas in the second pipeline, the pump impeller rotates in the second direction to drive the gas in the second pipeline to the first pipeline; Determine the second gas volume flowing from the second pipeline into the first pipeline according to the preset flow rate and the rotation duration of the pump impeller in the second direction; When the second gas volume is greater than or equal to the fourth threshold, or when the sensor detects that there is no gas in the second pipeline, control the pump impeller to rotate in the first direction; Determine the third gas volume flowing from the first pipeline into the third pipeline according to the preset flow rate and the rotation duration of the pump impeller in the first direction; When the third gas volume is greater than or equal to the fifth threshold, or when the sensor detects that there is no gas in the third pipeline, control the pump impeller to stop rotating.

9. The nutritional system according to any one of claims 4-8, characterized in that, The nutrient pump further includes an interaction component, and the interaction component includes a display screen and / or a button, wherein The display screen is used for information display and / or receiving instructions input by the user; The button is used for receiving instructions input by the user.

10. The nutrition system according to any one of claims 4-9, characterized in that, The nutrient pump further includes an early warning component, and the early warning component includes at least one of an indicator light, a buzzer, and a speaker, wherein the early warning component is used for outputting early warning information.

Images