A control system with pressure regulation function

Abstract

The application relates to a control system with a pressure regulation function, characterized in that the control system comprises a body, a pressure detection device and an infusion pipe, the body comprises a mounting chamber and a control panel, a motor and a heating device are arranged in the mounting chamber, the control panel comprises a display screen and a central control processor, the central control processor is wirelessly connected with the motor and the pressure detection device, a first liquid inlet pipe and a second liquid inlet pipe are arranged at the top of the body, the first liquid inlet pipe is connected with a first storage box, the second liquid inlet pipe is connected with a second storage box, the pressure detection device comprises an outlet pipe, a camera and an ultrasonic device, the outlet pipe is an elastic film, the system overcomes the problem that the thickening degree of infusion nutrient solution and the particulate matters in the nutrient solution easily cause the blockage of an infusion pipeline, and the blockage of the pipeline reduces the infusion precision.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pressure control, in particular to a control system with pressure regulation function. BACKGROUND

[0002] In hospitals, for those patients who lack the desire to eat and can not be well oral nutrition, usually use gastrointestinal nutrition pump for the delivery of nutrient solution. Gastrointestinal nutrition pump is a nasal feeding nutrition infusion pump. Water, nutrient solution and self-made certain concentration of meal milk can be input through the nasal feeding tube.

[0003] During the infusion process of the enteral nutrition pump, affected by the infusion nutrient solution, sometimes bubbles are generated, or due to the failure to add or replace the empty bottle (bag) that has completed infusion, causing air to enter the infusion pipeline. A small amount of bubbles will affect the accuracy of infusion, and a large amount of bubbles or air directly entering the patient's stomach and intestines through the feeding pipeline will cause the patient to feel abdominal distension, abdominal pain, vomiting and other discomforts.

[0004] During the infusion process of the enteral nutrition pump, affected by the concentration and particulate matter in the infusion nutrient solution, the infusion pipeline is easily blocked, which reduces the infusion accuracy. SUMMARY

[0005] Therefore, the present application provides a control system with pressure regulation function to overcome the problem that the infusion pipeline is easily blocked due to the influence of the concentration and particulate matter in the infusion nutrient solution, which reduces the infusion accuracy. To achieve the above purpose, the present application provides a control system with pressure regulation function, comprising:

[0006] The body comprises a mounting chamber arranged inside the body, a control panel arranged on the side of the body, and a first liquid inlet pipe and a second liquid inlet pipe arranged on the top of the body; wherein the mounting chamber is provided with a motor, the control panel comprises a display screen and a central control processor, and the central control processor is wirelessly connected with the motor and the pressure detection device; the first liquid inlet pipe is connected with a first storage tank, and the second liquid inlet pipe is connected with a second storage tank;

[0007] The pressure detection device is connected with the body at one end and connected with the infusion tube at the other end, and comprises an outflow tube, a camera and an ultrasonic device; wherein the outflow tube is an elastic film connected with the body to detect the pressure condition inside the outflow tube; the camera is arranged inside the pressure detection device to shoot the image information of the outflow tube; the ultrasonic device is arranged inside the pressure detection device to detect the air bubbles in the outflow tube; when the pressure detection is performed, the pressure detection device sends the image information of the outflow tube shot by the camera to the central control processor, after the sending is completed, the central control processor obtains the deformation information of the outflow tube according to the image information and determines the pressure condition of the infusion tube according to the deformation information.

[0008] The infusion tube is connected with the pressure detection device to convey the liquid output by the outflow tube.

[0009] The central control processor is preset with a standard deformation range F0 of the outflow tube, when the pressure detection device detects the liquid in the infusion tube, the central control processor sends the actual air bubble quantity E detected by the ultrasonic device to the central control processor, the central control processor compares the actual air bubble quantity with the standard, if the actual air bubble quantity does not conform to the standard, the central control processor sends the air bubble quantity to the display screen to prompt that the air bubble quantity does not conform to the standard, the central control processor obtains the actual deformation F of the outflow tube and compares the actual deformation F of the outflow tube with the standard deformation range F0 of the outflow tube, if F∈F0, the central control processor determines that the pressure in the outflow tube conforms to the standard, if F□F0, the central control processor determines that the pressure in the infusion tube does not conform to the standard and calculates the deformation difference value AF and controls the motor to adjust the flushing flow rate according to the difference value.

[0010] Further, the central control processor sets the standard air bubble quantity as 0, when the pressure detection is performed, the central control processor sends the actual air bubble quantity E detected by the ultrasonic device to the central control processor, when E>0, the central control processor determines that the air bubble quantity does not conform to the standard and sends the information to the display screen to prompt that the air bubble quantity does not conform to the standard, when E=0, the central control processor determines that the air bubble quantity conforms to the standard.

[0011] Further, for the standard outflow pipe standard deformation variable range F0, set F0(Fmin, Fmax), wherein Fmax represents the maximum value of the outflow pipe standard deformation variable range, and Fmin represents the minimum value of the outflow pipe standard deformation variable range. When flushing, the central control processor sets the flushing speed to the infusion speed. When pressure detection is performed, the central control processor compares the actual deformation variable F of the outflow pipe with the outflow pipe standard deformation variable range F0. When F∈F0, the central control processor determines that the outflow pipe pressure meets the standard. When F□F0, the central control processor determines that the outflow pipe pressure does not meet the standard and calculates the deformation variable difference ΔF and adjusts the flushing flow rate according to the difference.

[0012] Further, when pressure detection is performed, when F□F0, the central control processor determines that the outflow pipe pressure does not meet the standard and calculates the deformation variable difference ΔF and adjusts the flushing flow rate V according to the difference;

[0013] The central control processor is pre-set with a first deformation variable difference ΔF1, a second deformation variable difference ΔF2, a third deformation variable difference ΔF3, a first flushing speed adjustment coefficient α1, a second flushing speed adjustment coefficient α2, a third flushing speed adjustment coefficient α3, and a fourth flushing speed adjustment coefficient α4, wherein ΔF1<ΔF2<ΔF3 and α1<α2<α3<α4;

[0014] When F>Fmax, the central control processor calculates the deformation variable difference ΔF of the actual deformation variable F of the outflow pipe and adjusts the flushing speed to a corresponding value according to the corresponding adjustment coefficient. It is set that ΔF=F-Fmax.

[0015] When ΔF<ΔF1, the central control processor selects the first flushing speed adjustment coefficient α1 to control the motor to increase the flushing speed to a corresponding value.

[0016] When ΔF1≤ΔF<ΔF2, the central control processor selects the second flushing speed adjustment coefficient α2 to control the motor to increase the flushing speed to a corresponding value.

[0017] When ΔF2≤ΔF<ΔF3, the central control processor selects the third flushing speed adjustment coefficient α3 to control the motor to increase the flushing speed to a corresponding value.

[0018] When ΔF≥ΔF3, the central control processor selects the fourth flushing speed adjustment coefficient α4 to control the motor to increase the flushing speed to a corresponding value.

[0019] When F<Fmin, the central control processor determines that the outflow pipe pressure is not enough and the infusion pipe sealing is not enough. After the determination is completed, the central control processor sends the determination information to the display screen and prompts to replace the infusion pipe.

[0020] The central control processor selects αi to adjust the flushing speed, i = 1, 2, 3, 4, and the central control processor records the adjusted flushing speed as V', and sets V' = V × αi.

[0021] Further, the central control processor is provided with a standard deformation variable recovery rate range W0, and when the central control processor flushes at the flushing speed V', the central control processor obtains the actual deformation variable recovery rate W according to the deformation recovery image information of the liquid outlet pipe captured by the camera within t time, compares the actual deformation variable recovery rate W with the standard deformation variable recovery rate W0, and when W ∈ W0, the central control processor determines that the flushing speed meets the standard, and when W □ W0, the central control processor determines that the flushing speed does not meet the standard and calculates the recovery deformation variable difference ΔW and adjusts the flushing speed again according to the difference.

[0022] Further, when flushing, the central control processor compares the actual deformation variable recovery rate W with the standard deformation variable recovery rate W0, and when W □ W0, the central control processor determines that the flushing speed does not meet the standard and calculates the recovery deformation variable difference ΔW and adjusts the flushing speed again according to the difference.

[0023] The central control processor is provided with a first deformation variable recovery difference ΔW1, a second deformation variable recovery difference ΔW2, a third deformation variable recovery difference ΔW3, a first secondary flushing speed adjustment coefficient β1, a second secondary flushing speed adjustment coefficient β2, a third secondary flushing speed adjustment coefficient β3 and a fourth secondary flushing speed adjustment coefficient β4, wherein ΔW1 < ΔW2 < ΔW3, β1 < β2 < β3 < β4.

[0024] When W > Wmax, the central control processor calculates the recovery deformation variable difference ΔW according to the actual deformation variable recovery rate W captured by the camera and reduces the flushing speed to a corresponding value according to the difference, and sets ΔW = W - Wmax, wherein Wmax represents the maximum value of the standard deformation variable recovery rate.

[0025] When ΔW < ΔW1, the central control processor selects the first secondary flushing speed adjustment coefficient β1 to control the motor to reduce the flushing speed to a corresponding value.

[0026] When ΔW1 ≤ ΔW < ΔW2, the central control processor selects the second secondary flushing speed adjustment coefficient β2 to control the motor to reduce the flushing speed to a corresponding value.

[0027] When ΔW2 ≤ ΔW < ΔW3, the central control processor selects the third secondary flushing speed adjustment coefficient β3 to control the motor to reduce the flushing speed to a corresponding value.

[0028] When △W≥△W3, the central control processor selects the fourth quadratic flushing speed adjustment coefficient β4 to control the motor to reduce the flushing speed to the corresponding value;

[0029] When W<Wmin, the central control processor calculates the recovery deformation variable difference △W according to the actual recovery rate W of the camera shooting deformation variable and increases the flushing speed to the corresponding value according to the difference, set △W=Wmin-W, wherein Wmin represents the minimum value of the standard deformation variable recovery rate;

[0030] When △W<△W1, the central control processor selects the first quadratic flushing speed adjustment coefficient β1 to control the motor to increase the flushing speed to the corresponding value;

[0031] When △W1≤△W<△W2, the central control processor selects the second quadratic flushing speed adjustment coefficient β2 to control the motor to increase the flushing speed to the corresponding value;

[0032] When △W2≤△W<△W3, the central control processor selects the third quadratic flushing speed adjustment coefficient β3 to control the motor to increase the flushing speed to the corresponding value;

[0033] When △W≥△W3, the central control processor selects the fourth quadratic flushing speed adjustment coefficient β4 to control the motor to increase the flushing speed to the corresponding value;

[0034] When the central control processor selects βi to adjust the flushing speed twice, i=1, 2, 3, 4, the central control processor records the flushing speed after the second adjustment as V", set V"=V'×βi.

[0035] Further, the central control processor is provided with a maximum flushing speed Vmax, when V'>Vmax or V">Vmax is detected during flushing, the control terminal determines that the infusion tube is seriously blocked and sends the information to the display screen to prompt the replacement of the infusion tube, when V'≤Vmax or V"≤Vmax, the central control processor determines that the flushing speed meets the standard and controls the motor to adjust the flushing speed to the corresponding value.

[0036] Further, the central control processor is provided with a maximum adjustment number N0, when the central control processor completes an adjustment of the control system, the central control processor records the adjustment number as N=1, when N=N0, and F□F0 or V'>Vmax or V">Vmax, the control terminal sends the information of replacing the infusion tube to the display screen.

[0037] Further, the central control processor is provided with a first infusion speed V1, a second infusion speed V2 and a third infusion speed V3, when the central control processor sets the infusion speed as Vi, i=1, 2, 3, the central control processor sets the standard deformation variable range of the outflow tube as F0i.

[0038] Compared with the prior art, the control system with pressure regulation function has the advantages that the ultrasonic device accurately controls the bubble situation in the nutrient solution, avoids a large amount of bubbles or air from entering the patient's stomach and intestines through the infusion tube, the pressure detection device accurately controls the pressure in the infusion tube by detecting the deformation amount of the liquid tube, the protection of the infusion pipeline and the improvement of the infusion precision are achieved, the pressure detection device accurately controls the blockage of the infusion tube by detecting the recovery rate of the deformation amount of the liquid tube, the infusion tube is replaced in time, and the problem that the enteral nutrition pump is easily blocked during infusion due to the concentration of the nutrient solution and the particles in the nutrient solution is solved.

[0039] Further, the middle control processor can accurately control the pressure in the infusion tube by determining the standard deformation amount range, achieve the protection of the infusion pipeline and the improvement of the infusion precision, and solve the problem that the enteral nutrition pump is easily blocked during infusion due to the concentration of the nutrient solution and the particles in the nutrient solution.

[0040] Further, the middle control processor accurately controls the bubble situation in the nutrient solution by determining the liquid tube through the ultrasonic device, avoids a large amount of bubbles or air from entering the patient's stomach and intestines through the infusion tube, solves the problem that the enteral nutrition pump is easily blocked during infusion due to the concentration of the nutrient solution and the particles in the nutrient solution.

[0041] Further, the middle control processor is pre-set with a deformation amount difference, when the pressure is detected, the middle control processor calculates the deformation amount difference when the pressure of the infusion tube does not meet the standard and adjusts the flushing flow rate according to the difference, adjusts the flushing speed to ensure the smoothness of the infusion tube, solves the problem that the enteral nutrition pump is easily blocked during infusion due to the concentration of the nutrient solution and the particles in the nutrient solution.

[0042] Further, the middle control processor is provided with a deformation amount recovery difference, when flushing, the middle control processor calculates the recovery deformation amount difference when the flushing speed does not meet the standard and adjusts the flushing speed according to the difference, accurately adjusts the flushing speed to ensure the smoothness of the infusion tube, solves the problem that the enteral nutrition pump is easily blocked during infusion due to the concentration of the nutrient solution and the particles in the nutrient solution.

[0043] Further, the central control processor is provided with a flushing speed maximum value and a maximum adjustment number, the deformation amount of the liquid outlet pipe is detected by the pressure detection device to accurately control the pressure in the infusion pipe, the protection of the infusion pipeline and the improvement of the infusion precision are achieved, the deformation amount recovery rate of the liquid outlet pipe is detected by the pressure detection device to accurately control the blockage of the infusion pipe, the effect of timely replacing the infusion pipe is achieved, and the problems that the enteral nutrition pump is easily blocked during infusion, the blockage of the pipeline reduces the infusion precision, and the like are solved. BRIEF DESCRIPTION OF DRAWINGS

[0044] Fig. 1 The control system structure diagram with the pressure regulation function;

[0045] Fig. 2 The control system body structure diagram with the pressure regulation function;

[0046] Fig. 3 The pressure detection device structure diagram of the control system with the pressure regulation function;

[0047] 1-body, 2-pressure detection device, 3-infusion pipe, 4-first storage tank, 5-second storage tank, 6-first liquid inlet pipe, 7-second liquid inlet pipe, 8-motor, 101-display screen, 201-camera, 202-ultrasonic device, 203-liquid outlet pipe. DETAILED DESCRIPTION

[0048] In order to make the purpose and advantages of the present application more clear and explicit, the present application is further described below in combination with examples; it should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application.

[0049] The preferred embodiments of the present application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present application, and are not used to limit the protection scope of the present application.

[0050] It should be noted that in the description of the present application, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the direction or positional relationship terms based on the direction or positional relationship shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0051] Moreover, it needs to be explained that, in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "linking" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium, can be the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0052] Please refer to Figs. 1-3 The structure diagram of the control system with pressure regulation function is shown in the figure, which comprises:

[0053] The body 1 comprises a mounting chamber arranged inside the body, a control panel arranged on the side of the body, and a first liquid inlet pipe 6 and a second liquid inlet pipe 7 arranged on the top of the body; wherein the mounting chamber is mounted with a motor 8, the control panel comprises a display screen 101 and a central control processor (not shown in the figure), and the central control processor is wirelessly connected with the motor 8 and the pressure detection device respectively; the first liquid inlet pipe 6 is connected with the first storage tank 4, and the second liquid inlet pipe 7 is connected with the second storage tank 5;

[0054] The pressure detection device 2 is connected with the body 1 at one end and connected with the infusion pipe at the other end, and comprises an outlet pipe 203, a camera 201 and an ultrasonic device 202; wherein the outlet pipe is an elastic film connected with the body, used to detect the pressure condition inside the outlet pipe 203; the camera 201 is arranged inside the pressure detection device, used to shoot the image information of the outlet pipe; the ultrasonic device 202 is arranged inside the pressure detection device, used to detect the air bubbles in the outlet pipe; when detecting the pressure, the pressure detection device sends the image information of the outlet pipe shot by the camera 201 to the central control processor, after the sending is completed, the central control processor obtains the deformation information of the outlet pipe according to the image information and determines the pressure condition of the infusion pipe according to the deformation information;

[0055] The infusion pipe 3 is connected with the pressure detection device 2, used to transport the liquid output by the outlet pipe 203;

[0056] The central control processor is preset with a standard deformation variable range F0 of the outflow tube, when the pressure detection device detects the pressure of the liquid in the infusion tube, the central control processor sends the actual bubble quantity E detected by the ultrasonic device to the central control processor, according to the actual bubble quantity, if it does not meet the standard, the central control processor sends the bubble quantity to the display screen to prompt that the bubble quantity does not meet the standard, the actual deformation variable F of the outflow tube obtained by the central control processor is compared with the standard deformation variable range F0 of the outflow tube, if F∈F0, the central control processor determines that the pressure in the outflow tube meets the standard, if F□F0, the central control processor determines that the pressure in the infusion tube does not meet the standard and calculates the deformation variable difference △F and controls the motor to adjust the flushing flow rate according to the difference.

[0057] Specifically, the central control processor sets the standard bubble quantity as 0, when detecting the pressure, the central control processor sends the actual bubble quantity E detected by the ultrasonic device to the central control processor, when E>0, the central control processor determines that the bubble quantity does not meet the standard and sends the information to the display screen to prompt that the bubble quantity does not meet the standard, when E=0, the central control processor determines that the bubble quantity meets the standard.

[0058] Specifically, for the standard deformation variable range F0 of the standard outflow tube, set F0(Fmin, Fmax), wherein Fmax represents the maximum value of the standard deformation variable range of the outflow tube, and Fmin represents the minimum value of the standard deformation variable range of the outflow tube, when flushing, the central control processor sets the flushing speed as the infusion speed, when detecting the pressure, the central control processor compares the actual deformation variable F of the outflow tube with the standard deformation variable range F0 of the outflow tube, when F∈F0, the central control processor determines that the pressure in the outflow tube meets the standard, when F□F0, the central control processor determines that the pressure in the outflow tube does not meet the standard and calculates the deformation variable difference △F and adjusts the flushing flow rate according to the difference.

[0059] Specifically, when detecting the pressure, when F□F0, the central control processor determines that the pressure in the outflow tube does not meet the standard and calculates the deformation variable difference △F and adjusts the flushing flow rate V according to the difference;

[0060] The central control processor is preset with a first deformation variable difference △F1, a second deformation variable difference △F2, a third deformation variable difference △F3, a first flushing speed adjustment coefficient α1, a second flushing speed adjustment coefficient α2, a third flushing speed adjustment coefficient α3 and a fourth flushing speed adjustment coefficient α4, wherein △F1<△F2<△F3, α1<α2<α3<α4;

[0061] When F>Fmax, the central control processor calculates the actual deformation amount F of the outflow tube, calculates the deformation amount difference ΔF, and adjusts the flushing speed to the corresponding value according to the difference and the corresponding adjustment coefficient, and sets ΔF=F-Fmax;

[0062] When ΔF<ΔF1, the central control processor selects the first flushing speed adjustment coefficient α1 to control the motor to increase the flushing speed to the corresponding value;

[0063] When ΔF1≤ΔF<ΔF2, the central control processor selects the second flushing speed adjustment coefficient α2 to control the motor to increase the flushing speed to the corresponding value;

[0064] When ΔF2≤ΔF<ΔF3, the central control processor selects the third flushing speed adjustment coefficient α3 to control the motor to increase the flushing speed to the corresponding value;

[0065] When ΔF≥ΔF3, the central control processor selects the fourth flushing speed adjustment coefficient α4 to control the motor to increase the flushing speed to the corresponding value;

[0066] When F<Fmin, the central control processor determines that the outflow tube pressure is not enough and the sealing of the infusion tube is not enough, and after the determination is completed, sends the determination information to the display screen and prompts to replace the infusion tube;

[0067] When the central control processor selects αi to adjust the flushing speed, i=1, 2, 3, 4, the central control processor records the adjusted flushing speed as V', and sets V'=V×αi.

[0068] Specifically, the central control processor is provided with a standard deformation recovery rate range W0, when the central control processor flushes at the flushing speed V', the central control processor obtains the actual deformation recovery rate W according to the deformation recovery image information of the outflow tube shot by the camera within t time, the central control processor compares the actual deformation recovery rate W with the standard deformation recovery rate W0, when W∈W0, the central control processor determines that the flushing speed meets the standard, when W□W0, the central control processor determines that the flushing speed does not meet the standard and calculates the recovery deformation difference ΔW and adjusts the flushing speed according to the difference.

[0069] Specifically, when flushing, the central control processor compares the actual deformation recovery rate W with the standard deformation recovery rate W0, when W□W0, the central control processor determines that the flushing speed does not meet the standard and calculates the recovery deformation difference ΔW and adjusts the flushing speed according to the difference;

[0070] The central control processor is provided with a first deformation variable recovery difference value AW1, a second deformation variable recovery difference value AW2, a third deformation variable recovery difference value AW3, a first secondary flushing speed adjustment coefficient β1, a second secondary flushing speed adjustment coefficient β2, a third secondary flushing speed adjustment coefficient β3, and a fourth secondary flushing speed adjustment coefficient β4, wherein AW1< AW2< AW3, and β1< β2< β3< β4;

[0071] When W> Wmax, the central control processor calculates a recovery deformation variable difference value AW according to the actual deformation variable recovery rate W of the camera shooting, and reduces the flushing speed to a corresponding value according to the difference value, and is set as AW = W-Wmax, wherein Wmax represents the maximum value of the standard deformation variable recovery rate;

[0072] When AW1≤ AW< AW2, the central control processor selects the second secondary flushing speed adjustment coefficient β2 to control the motor to reduce the flushing speed to a corresponding value;

[0073] When AW1≤ AW< AW2, the central control processor selects the second secondary flushing speed adjustment coefficient β2 to control the motor to reduce the flushing speed to a corresponding value;

[0074] When AW2≤ AW< AW3, the central control processor selects the third secondary flushing speed adjustment coefficient β3 to control the motor to reduce the flushing speed to a corresponding value;

[0075] When AW2≤ AW< AW3, the central control processor selects the third secondary flushing speed adjustment coefficient β3 to control the motor to reduce the flushing speed to a corresponding value;

[0076] When W< Wmin, the central control processor calculates a recovery deformation variable difference value AW according to the actual deformation variable recovery rate W of the camera shooting, and increases the flushing speed to a corresponding value according to the difference value, and is set as AW = Wmin-W, wherein Wmin represents the minimum value of the standard deformation variable recovery rate;

[0077] When AW1≤ AW< AW2, the central control processor selects the second secondary flushing speed adjustment coefficient β2 to control the motor to reduce the flushing speed to a corresponding value;

[0078] When AW1≤ AW< AW2, the central control processor selects the second secondary flushing speed adjustment coefficient β2 to control the motor to reduce the flushing speed to a corresponding value;

[0079] When AW2≤ AW< AW3, the central control processor selects the third secondary flushing speed adjustment coefficient β3 to control the motor to reduce the flushing speed to a corresponding value;

[0080] When AW2≤ AW< AW3, the central control processor selects the third secondary flushing speed adjustment coefficient β3 to control the motor to reduce the flushing speed to a corresponding value;

[0081] The central control processor selects βi to adjust the flushing speed, i = 1, 2, 3, 4, and the central control processor records the adjusted flushing speed as V", and sets V" = V' x βi.

[0082] Specifically, the central control processor is provided with a maximum flushing speed Vmax, when V' > Vmax or V" > Vmax is detected during flushing, the control terminal determines that the infusion tube is severely blocked and sends the information to the display screen to prompt the replacement of the infusion tube, and when V' ≤ Vmax or V" ≤ Vmax, the central control processor determines that the flushing speed meets the standard and controls the motor to adjust the flushing speed to the corresponding value.

[0083] Specifically, the central control processor is provided with a maximum adjustment number N0, when the central control processor completes an adjustment of the control system, the central control processor records the adjustment number as N = 1, when N = N0, and F□F0 or V' > Vmax or V" > Vmax, the control terminal sends the information of replacing the infusion tube to the display screen.

[0084] Specifically, the central control processor is provided with a first infusion speed V1, a second infusion speed V2, and a third infusion speed V3, when the central control processor sets the infusion speed as Vi, i = 1, 2, 3, the central control processor sets the standard deformation variable range of the outflow tube as F0i

[0085] Specifically, when the patient needs to eat nutrient solution, first start the motor 8, the motor 8 can input the nutrient solution in the first storage tank 4 into the patient's gastrointestinal tract through the infusion tube 3, and at the same time, the pressure detection device 2 can detect the pressure in the infusion tube 3, after the patient finishes eating, the central control processor can use the water in the second storage tank 5 to flush the infusion tube 3, during flushing, the central control processor precisely controls the flushing speed by the outflow tube deformation recovery rate, realizes the precise control of the flow rate of water flow, so that the flow rate of water flow can fully flush the inner wall of the infusion tube 3, effectively prevents the outflow tube 3 from being blocked, the flushing time is 4 hours, and the pulse flushing is less than 55 ml / h, thereby the control system provides good eating conditions for the patient, of course, according to the needs of the patient or the setting of the operator, 24 hours a day can be divided into several time periods, and a certain amount of water or nutrient solution is input in a certain time period, so as to realize the alternating and orderly operation of water and nutrient solution.

[0086] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the present application, and the technical solutions after the changes or replacements will all fall within the protection scope of the present application.

[0087] The above only describes the preferred embodiments of the present application and is not intended to limit the present application; the present application can have various changes and variations for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A control system with pressure regulation function, characterized in that, The utility model relates to a kind of infusion pump, including: The body includes installation chamber arranged inside the body, control panel arranged in the side of the body and first liquid inlet pipe and second liquid inlet pipe arranged in the top of the body;Wherein, motor is installed in the installation chamber, the control panel includes display screen and central control processor, central control processor is wirelessly connected with motor and pressure detection device respectively;The first liquid inlet pipe is connected with first storage tank, and the second liquid inlet pipe is connected with second storage tank; Pressure detection device, one end of pressure monitoring device is connected with body, the other end is connected with infusion tube, including liquid outlet pipe, camera and ultrasonic device;Wherein, the elastic film of the liquid outlet pipe is connected with the body, to detect the pressure condition inside the liquid outlet pipe;The camera is arranged inside the pressure detection device, to shoot the image information of liquid outlet pipe;The ultrasonic device is arranged inside the pressure detection device, to detect the bubble in the liquid outlet pipe;When pressure detection is carried out, the image information of liquid outlet pipe shot by camera is sent to central control processor by the pressure detection device, after sending is completed, the central control processor obtains the deformation information of the liquid outlet pipe according to image information and judges the pressure condition of infusion tube according to deformation information; Infusion tube, which is connected with the pressure detection device, is used to transport the liquid output by the liquid outlet pipe; The central control processor is preset with liquid outlet pipe standard deformation variable range F0, when the pressure detection device detects the liquid in the infusion tube, the central control processor sends the actual bubble number E detected by the ultrasonic device to the central control processor, and the central control processor judges whether the actual bubble number meets the standard, and sends the bubble number to the display screen to prompt that the bubble number does not meet the standard if it does not meet the standard.The actual deformation variable F obtained by the central control processor is compared with the liquid outlet pipe standard deformation variable range F0, if F belongs to F0, the central control processor judges that the pressure in the liquid outlet pipe meets the standard, if F does not belong to F0, the central control processor judges that the pressure in the infusion tube does not meet the standard and calculates the deformation variable difference ΔF and controls the motor to adjust the flushing flow rate according to the difference.

2. The control system having a pressure regulating function according to claim 1, wherein, The central control processor sets the standard bubble number as 0, when pressure detection is carried out, the central control processor sends the actual bubble number E detected by the ultrasonic device to the central control processor, when E>0, the central control processor judges that the bubble number does not meet the standard and sends the information to the display screen to prompt that the bubble number does not meet the standard, when E=0, the central control processor judges that the bubble number meets the standard.

3. The control system having a pressure regulating function according to claim 2, wherein, For the standard outflow pipe standard deformation variable range F0, set F0(Fmin, Fmax), wherein Fmax represents the maximum value of the outflow pipe standard deformation variable range, and Fmin represents the minimum value of the outflow pipe standard deformation variable range. When flushing is performed, the central control processor sets the flushing speed to the infusion speed. When pressure detection is performed, the central control processor compares the actual deformation variable F of the outflow pipe with the outflow pipe standard deformation variable range F0. When F∈F0, the central control processor determines that the outflow pipe pressure meets the standard. When F∉F0, the central control processor determines that the outflow pipe pressure does not meet the standard and calculates the deformation variable difference ΔF and adjusts the flushing flow rate according to the difference.

4. The control system having a pressure regulating function according to claim 3, wherein When pressure detection is performed, when F∉F0, the central control processor determines that the outflow pipe pressure does not meet the standard and calculates the deformation variable difference ΔF and adjusts the flushing flow rate V according to the difference; The central control processor is pre-set with a first deformation variable difference ΔF1, a second deformation variable difference ΔF2, a third deformation variable difference ΔF3, a first flushing speed adjustment coefficient α1, a second flushing speed adjustment coefficient α2, a third flushing speed adjustment coefficient α3, and a fourth flushing speed adjustment coefficient α4, wherein ΔF1<ΔF2<ΔF3 and α1<α2<α3<α4; When F>Fmax, the central control processor calculates the deformation variable difference ΔF of the actual deformation variable F of the outflow pipe and selects the corresponding adjustment coefficient to adjust the flushing speed to the corresponding value. It is set that ΔF=F-Fmax. When ΔF<ΔF1, the central control processor selects the first flushing speed adjustment coefficient α1 to control the motor to increase the flushing speed to the corresponding value. When ΔF1≤ΔF<ΔF2, the central control processor selects the second flushing speed adjustment coefficient α2 to control the motor to increase the flushing speed to the corresponding value. When ΔF2≤ΔF<ΔF3, the central control processor selects the third flushing speed adjustment coefficient α3 to control the motor to increase the flushing speed to the corresponding value. When ΔF≥ΔF3, the central control processor selects the fourth flushing speed adjustment coefficient α4 to control the motor to increase the flushing speed to the corresponding value. When F<Fmin, the central control processor determines that the outflow pipe pressure is not enough and the infusion pipe sealing is not enough. After the determination is completed, the central control processor sends the determination information to the display screen and prompts to replace the infusion pipe. When the central control processor selects αi to adjust the flushing speed, i=1, 2, 3, 4. The central control processor records the adjusted flushing speed as V’ and sets V’=V×αi.

5. The control system having a pressure regulating function according to claim 4, wherein, The central control processor is provided with a standard deformation variable recovery rate range W0. When the central control processor flushes at the flushing speed V’, the central control processor obtains the actual deformation variable recovery rate W according to the deformation recovery image information of the outflow pipe captured by the camera within t time. The central control processor compares the actual deformation variable recovery rate W with the standard deformation variable recovery rate W0. When W∈W0, the central control processor determines that the flushing speed meets the standard. When W∉W0, the central control processor determines that the flushing speed does not meet the standard and calculates the recovery deformation variable difference ΔW and adjusts the flushing speed according to the difference.

6. The control system having pressure regulation function according to claim 5, wherein, When flushing, the central control processor compares the actual deformation variable recovery rate W with the standard deformation variable recovery rate W0, and when W∉W0, the central control processor determines that the flushing speed does not meet the standard and calculates the deformation variable recovery difference ΔW and adjusts the flushing speed according to the difference; The central control processor is provided with a first deformation variable recovery difference ΔW1, a second deformation variable recovery difference ΔW2, a third deformation variable recovery difference ΔW3, a first secondary flushing speed adjustment coefficient β1, a second secondary flushing speed adjustment coefficient β2, a third secondary flushing speed adjustment coefficient β3 and a fourth secondary flushing speed adjustment coefficient β4, wherein ΔW1<ΔW2<ΔW3, β1<β2<β3<β4; When W>Wmax, the central control processor calculates the deformation variable recovery difference ΔW according to the actual deformation variable recovery rate W photographed by the camera and reduces the flushing speed to a corresponding value according to the difference, and ΔW=W-Wmax, wherein Wmax represents the maximum value of the standard deformation variable recovery rate; When ΔW<ΔW1, the central control processor selects the first secondary flushing speed adjustment coefficient β1 to control the motor to reduce the flushing speed to a corresponding value; When ΔW1≤ΔW<ΔW2, the central control processor selects the second secondary flushing speed adjustment coefficient β2 to control the motor to reduce the flushing speed to a corresponding value; When ΔW2≤ΔW<ΔW3, the central control processor selects the third secondary flushing speed adjustment coefficient β3 to control the motor to reduce the flushing speed to a corresponding value; When ΔW≥ΔW3, the central control processor selects the fourth secondary flushing speed adjustment coefficient β4 to control the motor to reduce the flushing speed to a corresponding value; When W When ΔW<ΔW1, the central control processor selects the first secondary flushing speed adjustment coefficient β1 to control the motor to increase the flushing speed to a corresponding value; When ΔW1≤ΔW<ΔW2, the central control processor selects the second secondary flushing speed adjustment coefficient β2 to control the motor to increase the flushing speed to a corresponding value; When ΔW2≤ΔW<ΔW3, the central control processor selects the third secondary flushing speed adjustment coefficient β3 to control the motor to increase the flushing speed to a corresponding value; When ΔW≥ΔW3, the central control processor selects the fourth secondary flushing speed adjustment coefficient β4 to control the motor to increase the flushing speed to a corresponding value; When the central control processor selects βi to adjust the flushing speed, i=1, 2, 3, 4, the central control processor records the secondary adjusted flushing speed as V", and V"=V'×βi.

7. The control system having a pressure regulating function according to claim 6, wherein, The central control processor is provided with a maximum flushing speed Vmax, when flushing, the central control processor detects V'>Vmax or V">Vmax, the control terminal determines that the infusion tube is seriously blocked and sends the information to the display screen to prompt replacing the infusion tube, when V'≤Vmax or V"≤Vmax, the central control processor determines that the flushing speed meets the standard and controls the motor to adjust the flushing speed to the corresponding value.

8. The control system having pressure regulation function according to claim 7, wherein, The central control processor is provided with a maximum adjustment number N0, when the central control processor completes an adjustment to the control system, the central control processor records the adjustment number as N=1, when N=N0 and F∉F0 or V'>Vmax or V">Vmax, the control terminal sends the information of replacing the infusion tube to the display screen.

9. The control system having a pressure regulating function according to claim 8, wherein, The central control processor is provided with a first infusion speed V1, a second infusion speed V2 and a third infusion speed V3, when the central control processor sets the infusion speed as Vi, i=1, 2, 3, the central control processor sets the standard deformation variable range of the liquid outlet tube as F0i.

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