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CN-121987886-A - Nutrient infusion device and control method thereof

CN121987886ACN 121987886 ACN121987886 ACN 121987886ACN-121987886-A

Abstract

A nutrition infusion device and a control method thereof relate to the technical field of infusion tube mode control of the nutrition infusion device and comprise the following steps of obtaining a liquid pumping instruction and controlling a valve core to rotate by a first preset angle; the method comprises the steps of judging the rotating direction of a roller according to the liquid suction direction corresponding to a liquid suction instruction, controlling the roller to rotate along the determined rotating direction by a first preset angle, obtaining the ultrasonic signal intensity of an infusion tube, comparing the ultrasonic signal intensity with an ultrasonic preset threshold value, and judging the type of a valve core according to the comparison result of the liquid suction direction corresponding to the liquid suction instruction and the ultrasonic signal intensity. According to the control method of the nutrition infusion device, the type of the infusion tube is identified through the data detected by the sensor, the structures of the nutrition infusion tube and the nutrition infusion device are simplified, the production cost of the infusion tube is reduced, and the accuracy and the reliability of the nutrition infusion device for identifying the infusion tube are improved.

Inventors

  • YIN XIAOTONG
  • HUANG HAOKE
  • Quan Changping

Assignees

  • 江苏麦科田医疗技术有限公司
  • 深圳麦科田生命科学有限公司

Dates

Publication Date
20260508
Application Date
20260325

Claims (12)

  1. 1. A method of controlling a nutritional infusion device, comprising the steps of: Acquiring a liquid pumping instruction, and controlling the valve core to rotate by a first preset angle; Judging the rotation direction of the roller according to the liquid suction direction corresponding to the liquid suction instruction, and controlling the roller to rotate by a first preset angle along the determined rotation direction; And acquiring the ultrasonic signal intensity of the infusion tube, comparing the ultrasonic signal intensity with an ultrasonic preset threshold value, and judging the type of the valve core according to the comparison result of the liquid suction direction corresponding to the liquid suction instruction and the ultrasonic signal intensity.
  2. 2. The control method according to claim 1, wherein one end of the infusion tube, which is far away from the valve core, is a first end, after the first preset angle is rotated, a pressure value of the first end is obtained, the pressure value is compared with a pressure threshold, whether the first end is blocked is judged according to a comparison result of a liquid drawing direction corresponding to the liquid drawing instruction and the pressure value, and an alarm is given when the first end is blocked.
  3. 3. The control method according to claim 2, wherein the determining whether the first end is clogged according to a comparison result of the pumping direction corresponding to the pumping instruction and the pressure value includes: when the liquid suction direction corresponding to the liquid suction instruction is a positive liquid suction direction, judging whether the pressure value is larger than a first pressure threshold value, and sending out the alarm when the pressure value is larger than the first pressure threshold value; When the liquid suction direction corresponding to the liquid suction instruction is the reverse suction direction, judging whether the pressure value is smaller than a second pressure threshold value, and sending out the alarm when the pressure value is smaller than the second pressure threshold value.
  4. 4. The control method according to any one of claims 1 to 3, wherein the judging the type of the valve element according to the comparison result of the liquid suction direction corresponding to the liquid suction instruction and the ultrasonic signal intensity includes: The infusion tube is characterized in that one end, which is close to the valve core relative to the roller, is a second end, ultrasonic signal intensity of the second end is detected, whether the ultrasonic signal intensity is larger than a first ultrasonic preset threshold value or not is judged when the liquid suction direction corresponding to the liquid suction instruction is a positive suction direction, the two-way valve is determined when the ultrasonic signal intensity is larger than the first ultrasonic preset threshold value, and the three-way valve is determined when the ultrasonic signal intensity is smaller than or equal to the first ultrasonic preset threshold value.
  5. 5. The control method of claim 4, wherein the end of the infusion tube opposite the roller away from the valve element is a first end, the first preset threshold is greater than the ultrasonic signal intensity at the second end when both the first end and the second end are blocked, and the first preset threshold is less than the ultrasonic intensity in the infusion tube when both the second end is blocked and the first end is conductive.
  6. 6. The control method according to any one of claims 1 to 3, wherein the judging the type of the valve element according to the comparison result of the liquid suction direction corresponding to the liquid suction instruction and the ultrasonic signal intensity includes: the infusion tube is characterized in that one end, which is close to the valve core relative to the roller, is a second end, ultrasonic signal intensity of the second end is detected, whether the ultrasonic signal intensity is smaller than or equal to a second ultrasonic preset threshold value is judged when the liquid pumping direction corresponding to the liquid pumping instruction is a reverse pumping direction, a two-way valve is determined when the ultrasonic signal intensity is smaller than or equal to the second ultrasonic preset threshold value, and a three-way valve is determined when the ultrasonic signal intensity is larger than the second ultrasonic preset threshold value.
  7. 7. The control method of claim 6, wherein the end of the infusion tube opposite the roller away from the valve core is a first end, the second preset threshold is greater than the intensity of ultrasound in the infusion tube when both the first end and the second end are plugged, and the second preset threshold is less than the intensity of ultrasound in the infusion tube when both the first end and the second end are conductive.
  8. 8. The control method according to claim 6, wherein after judging the type of the valve core according to the comparison result of the liquid pumping direction corresponding to the liquid pumping instruction and the ultrasonic signal intensity, the roller is controlled to rotate by the second preset angle along the positive pumping direction, and the infusion program corresponding to the determined content of the valve core is entered.
  9. 9. A nutritional infusion device, comprising: the acquisition unit is used for acquiring the liquid suction instruction and the ultrasonic signal intensity; The judging unit is used for judging the rotating direction of the roller according to the liquid suction direction corresponding to the liquid suction instruction and judging the type of the valve core according to the comparison result of the liquid suction direction corresponding to the liquid suction instruction and the ultrasonic signal intensity; The control unit is used for controlling the valve core to rotate by a first preset angle and controlling the roller to rotate by the first preset angle.
  10. 10. A nutrition infusion device, comprising a processor and a memory communicatively connected with the processor; The memory stores computer-executable instructions; the processor executing computer-executable instructions stored in the memory to implement the method as recited in claim 1 8, And a control method according to any one of the above.
  11. 11. A computer readable storage medium having stored therein computer executable instructions which when executed by a processor are adapted to implement the method of claim 1 8, And a control method according to any one of the above.
  12. 12. A computer program product comprising a computer program which, when executed by a processor, implements the method of claim 1 8, And a control method according to any one of the above.

Description

Nutrient infusion device and control method thereof Technical Field The application relates to the technical field of infusion tube mode control of a nutrition infusion device, in particular to a nutrition infusion device and a control method thereof. Background In the medical field, nutrient infusion devices deliver nutrient fluid into a patient via an infusion pump, and most nutrient infusion devices also have an anti-pump function, such as pumping gastric fluid from the patient. The nutrition infusion device is used with an infusion tube assembly, liquid is conveyed to a patient through a pipeline, the infusion tube assembly is generally composed of a connecting plate, a pipeline and a valve body, the valve body comprises a two-way valve and a three-way valve, and the infusion tube assembly is divided into a two-channel nutrition infusion tube assembly and a three-channel nutrition infusion tube assembly according to different channel numbers of the valve body. According to the different channel numbers of the valve body, the working modes of the nutrition infusion device are different, and the nutrition infusion device needs to distinguish different types of consumables through certain characteristics on the nutrition infusion tube assembly, so that different functions are realized. However, in the existing nutrition infusion device, the structure of the infusion tube assembly needs to be correspondingly designed in the identification process of the infusion tube assembly, the structure of the infusion tube assembly is complex, and the production cost of the infusion tube assembly serving as a consumable material is increased. Disclosure of Invention The application provides a nutrition infusion device and a control method thereof, which are used for autonomously determining the type of a valve body of an installed infusion tube, the type of the infusion tube is identified through data detected by a sensor without changing the structure of the infusion tube, the structures of the nutrition infusion tube and the nutrition infusion device are simplified, the production cost of the infusion tube is reduced, and the accuracy and the reliability of the identification of the infusion tube by the nutrition infusion device are improved. In a first aspect, the present application provides a method of controlling a nutritional infusion device, comprising the steps of: Acquiring a liquid pumping instruction, and controlling the valve core to rotate by a first preset angle; Judging the rotation direction of the roller according to the liquid suction direction corresponding to the liquid suction instruction, and controlling the roller to rotate by a first preset angle along the determined rotation direction; And acquiring the ultrasonic signal intensity of the infusion tube, comparing the ultrasonic signal intensity with an ultrasonic preset threshold value, and judging the type of the valve core according to the comparison result of the liquid suction direction corresponding to the liquid suction instruction and the ultrasonic signal intensity. The control method of the nutrition infusion device provided by the embodiment of the application is used for autonomously determining the type of the valve body of the mounted infusion tube, the type of the infusion tube is identified by the data detected by the sensor without changing the structure of the infusion tube, the structures of the nutrition infusion tube and the nutrition infusion device are simplified, the production cost of the infusion tube is reduced, and the accuracy and the reliability of the identification of the infusion tube by the nutrition infusion device are improved. The embodiment of the application recognizes the different states of the infusion tube through the ultrasonic bubble sensor, and judges whether the current valve body is conducted or not through the states in the infusion tube so as to determine whether the currently installed valve body is a two-way valve or a three-way valve. In some embodiments, the end of the infusion tube, which is far away from the valve core, is a first end relative to the roller, after the first preset angle is rotated, a pressure value of the first end is obtained, the pressure value is compared with a pressure threshold, whether the first end is blocked is judged according to a comparison result of the liquid pumping direction corresponding to the liquid pumping instruction and the pressure value, and an alarm is sent when the first end is blocked. In some embodiments, determining whether the first end is blocked according to a comparison result of the liquid suction direction corresponding to the liquid suction instruction and the pressure value includes: When the liquid suction direction corresponding to the liquid suction instruction is the positive liquid suction direction, judging whether the pressure value is larger than a first pressure threshold value, and sending out an alarm when the pressure value i