Automatic infusion and flushing device for enteral nutrition tube

Abstract

The utility model discloses an automatic infusion and flushing device for an enteral nutrition tube, which comprises a box body, a nutrient solution container and a cleaning solution container, the nutrient solution container comprises a first cylinder and a nutrient solution bag, the nutrient solution bag is placed in the first cylinder, a first temperature sensor and a first heater are arranged in the first cylinder, and a second temperature sensor and a second heater are arranged in the first cylinder. The cleaning liquid container comprises a second cylinder, and a second temperature sensor, a liquid level sensor and a second heater are arranged in the second cylinder; a peristaltic pump, a reciprocating pump, a three-way connector and a single-chip microcomputer controller are fixedly arranged in the box body, a connector at the bottom of the nutrient solution bag and a liquid outlet end arranged at the bottom of the second cylinder are connected with two ports of the three-way connector through the peristaltic pump and the reciprocating pump respectively, and the other port of the three-way connector is used for being connected with one end of a nutrient tube; the temperature sensor, the heater, the peristaltic pump, the liquid level sensor and the reciprocating pump are all connected with the single-chip microcomputer controller. According to the utility model, the automatic control of nutrient solution infusion and nutrient tube flushing can be realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of enteral nutrition tubes, in particular to an automatic infusion and flushing device and method for enteral nutrition tubes. Background Art

[0002] Enteral nutrition (EN) is a nutritional support method that provides nutrients required for metabolism and various other nutrients through the gastrointestinal tract. When patients with intestinal diseases are in a diseased state, their digestive ability will decrease due to intestinal dysfunction or tissue lesions, resulting in inability to eat normally or insufficient food. At this time, enteral nutrition should be provided to directly supply nutrient solution to the patient's intestines to avoid malnutrition and ensure the patient's physical condition. Common enteral nutrition methods are oral nutritional supplements and tube feeding nutritional support. Among them, the advantage of tube feeding is that tube feeding can ensure uniform infusion of nutrient solution and give full play to the digestion and absorption function of the gastrointestinal tract. The common tube feeding route is to insert a nasogastric feeding tube through the patient's nasal cavity, and then enter the stomach or small intestine through the throat, esophagus, stomach, and duodenum to allow the human body to obtain sufficient energy.

[0003] Due to the thin, long, and soft structure of the nasointestinal tube itself, the long cycle of clinical nutritional support, the long retention time, the sticky, thick, concentrated, and weakly acidic properties of the enteral nutrition solution, and the slow pump speed of the enteral nutrition solution, the nasointestinal tube is often blocked during enteral nutrition support, increasing the patient's hospitalization expenses, prolonging the patient's hospitalization time, and even increasing the cost of secondary catheterization, causing physical and psychological pain to the patient, reducing the patient's quality of life, leading to poor prognosis and even endangering the patient's life safety. Domestic studies have found that when enteral nutrition solution is used for nutritional support through a nasointestinal tube, the blockage rate is as high as 35%. Therefore, it is particularly important to carry out applied research on unblocking nasointestinal tube blockage.

[0004] In order to avoid the risk of nutrient solution clogging in the enteral nutrition tube, medical staff are required to observe the patient 24 hours a day and flush the enteral nutrition tube every 4 hours. The functions of flushing and heating the nutrient solution in the prior art need to be operated separately, which consumes a lot of energy of medical staff and greatly increases the workload of clinical medical staff. The existing enteral nutrition tube flushing equipment is expensive and cannot be effectively used. The existing technology cannot sterilize and disinfect the cleaning fluid used in the enteral nutrition tube. Nursing staff should use new cleaning fluid before daily use, which easily leads to waste of cleaning fluid. Summary of the invention

[0005] In order to solve the above problems, the purpose of the utility model is to provide an automatic infusion and flushing device for enteral nutrition tubes with reasonable structural design and good use effect.

[0006] In order to achieve the above-mentioned invention object, the utility model adopts the following technical solutions:

[0007] An automatic infusion and flushing device for an enteral nutrition tube, comprising a box body, a nutrient solution container and a cleaning liquid container, wherein the nutrient solution container is arranged above the box body, comprises a first cylinder and a nutrient solution bag, the nutrient solution bag is placed in the first cylinder, a first temperature sensor and a first heater are arranged in the first cylinder, and a connector at the bottom of the nutrient solution bag extends out of the first cylinder; the cleaning liquid container is arranged inside the box body, comprises a second cylinder, a liquid inlet end is arranged at the top of the second cylinder, a funnel-shaped bottom and a liquid outlet end are arranged at the bottom, a second temperature sensor, a liquid level sensor and a second heater are arranged in the second cylinder; a peristaltic pump, a reciprocating pump, a three-way connector and a single-chip microcomputer controller are fixedly arranged in the box body, and the top of the box body is provided with a first temperature sensor and a first heater. A first interface is provided on the top, and a second interface is provided on the side wall or the bottom; the liquid inlet of the peristaltic pump is connected with the first interface through a pipeline, and the liquid outlet of the peristaltic pump is connected with the first port of the three-way joint through a pipeline; the liquid inlet of the reciprocating pump is connected with the liquid outlet end of the second cylinder through a pipeline, and the liquid outlet of the reciprocating pump is connected with the second port of the three-way joint through a pipeline; the third port of the three-way joint is connected with the second interface; the connector at the bottom of the nutrient solution bag is connected with the first interface, and the second interface is used to connect one end of the nutrient tube; the first temperature sensor, the first heater, the peristaltic pump, the second temperature sensor, the liquid level sensor, the second heater, and the reciprocating pump are all connected to the single-chip microcomputer controller.

[0008] Furthermore, the first heater and the second heater mentioned above are both electric heating tubes.

[0009] Furthermore, a hanging belt is arranged on the above-mentioned nutrient solution bag, and a hook is arranged at the top center of the box body.

[0010] Furthermore, an arc-shaped filter is arranged in the above-mentioned nutrient solution bag.

[0011] Furthermore, the outer sides of the multiple pipes in the above-mentioned box body are wrapped with insulation sleeves.

[0012] Furthermore, the box body is provided with a plurality of buckles for fixing the plurality of pipes, or the box body is provided with a plurality of accommodating grooves for placing the plurality of pipes.

[0013] Furthermore, the liquid inlet end of the second cylinder is provided with a liquid replenishment solenoid valve, and the liquid outlet end at the bottom is provided with a liquid outlet solenoid valve, and both the liquid replenishment solenoid valve and the liquid outlet solenoid valve are connected to the single-chip controller.

[0014] Furthermore, the above-mentioned single chip microcomputer controller is also connected to a liquid level sound and light alarm.

[0015] Due to the adoption of the above-mentioned technical solution, the utility model has the following advantages:

[0016] The automatic infusion and flushing device for enteral nutrition tube has a simple structure, is easy to operate, and has a high degree of automation. It can increase the comfort of patients, reduce gastrointestinal irritation, and prevent the occurrence of complications such as diarrhea by keeping the nutrient solution warm and heating it. The nutrient solution is filtered through a filter net in the nutrient solution bag to ensure the safety of the nutrient solution, prevent impurities in the nutrient solution from being introduced into the gastrointestinal tract of the patient, and improve the absorption effect of the nutrient solution. The cleaning liquid is guided into the nutrient tube by a reciprocating pump and flushed by a high-pressure and high-speed water flow to effectively remove the nutrient solution remaining on the tube wall of the nutrient tube, thereby solving the problem of clogging of the nutrient tube. The cleaning liquid is heated to dissolve the warm cleaning liquid and flush away the residual nutrient solution in the nutrient tube, thereby ensuring the flushing effect and the comfort of patients and reducing the work intensity of medical staff. The single-chip microcomputer controller is used to control the start and close of each pump and valve to realize automatic control of nutrient solution infusion and nutrient tube flushing, which has high working efficiency, strong practicality, and good promotion and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the automatic infusion and flushing device for enteral nutrition tube of the utility model;

[0018] In the figure: 1-hook; 2-suspension belt; 3-first cylinder; 4-nutrient solution bag; 5-first heater; 6-filter; 7-connector; 8-first interface; 9 (a, b, c, d)-pipeline; 10-peristaltic pump; 11-single-chip microcomputer control; 12-second interface; 13-nutrient tube; 14-three-way connector; 15-reciprocating pump; 16-liquid outlet; 17-liquid level sensor; 18-second temperature sensor; 19-liquid inlet; 20-second heater; 21-second cylinder; 22-box; 23-first temperature sensor. DETAILED DESCRIPTION

[0019] The technical solution of the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0020] like Figure 1As shown, the automatic infusion and flushing device for enteral nutrition tube comprises a box body 22, a nutrient solution container and a cleaning liquid container, wherein the nutrient solution container is arranged above the box body, comprises a first cylinder 3 and a nutrient solution bag 4, a hanging belt 2 is arranged on the nutrient solution bag 4, a hook 1 for hanging the nutrient solution bag is arranged at the top center of the first cylinder 3, a first temperature sensor 23 and a first heater 5 are arranged in the first cylinder, and a connector 7 at the bottom of the nutrient solution bag 4 extends out of the first cylinder 3; the cleaning liquid container is arranged in the box body, comprises a second cylinder 21, the cleaning liquid in the second cylinder is preferably physiological saline, a liquid inlet end 19 is arranged at the top of the second cylinder, the bottom is funnel-shaped and a liquid outlet end 16 is arranged at the bottom, a second temperature sensor 18, a liquid level sensor 17 and a second heater 20 are arranged in the second cylinder; a peristaltic pump 10, a reciprocating pump 15, a three-way connector 14 and a single-chip controller 11 are fixedly arranged in the box body, and a first interface 8 is arranged at the top of the box body 22 , a second interface 12 is provided on the side wall or the bottom; the liquid inlet of the peristaltic pump 10 is connected to the first interface 8 through the pipeline 9a, and the liquid outlet of the peristaltic pump is connected to the first port of the three-way joint 14 through the pipeline 9b; the liquid inlet of the reciprocating pump 15 is connected to the liquid outlet end 16 of the second cylinder 21 through the pipeline 9d, and the liquid outlet of the reciprocating pump is connected to the second port of the three-way joint 14 through the pipeline 9c; the third port of the three-way joint 14 is connected to the second interface 12; the connector 7 at the bottom of the nutrient solution bag 4 is connected to the first interface 8 through a hose, and the second interface 12 is used to connect one end of the nutrient tube 13; the first temperature sensor 23, the first heater 5, the peristaltic pump 10, the second temperature sensor 18, the liquid level sensor 17, the second heater 20, and the reciprocating pump 15 are all connected to the single-chip controller 11, and the single-chip controller is also connected to the liquid level sound and light alarm, and the AC 220V power supply is connected to the single-chip controller through the AC-DC power supply module.

[0021] The first heater 5 and the second heater 20 mentioned above are both electric heating tubes.

[0022] The above-mentioned nutrient solution bag 4 is provided with an arc-shaped filter screen 6, which is made of medical elastic material or medical plastic to filter the nutrient solution, thereby ensuring the safety of the nutrient solution, preventing impurities in the nutrient solution from being introduced into the patient's gastrointestinal tract, and improving the absorption effect of the nutrient solution.

[0023] The outsides of the pipes 9a, 9b, 9c and 9d in the box 22 are wrapped with insulation sleeves, which can ensure that the temperature of the nutrient solution does not dissipate.

[0024] The box body 22 is provided with a plurality of buckles for fixing the pipes 9a, 9b, 9c and 9d, or a plurality of receiving grooves for placing the pipes 9a, 9b, 9c and 9d.

[0025] The liquid inlet end 19 at the top of the second cylinder 21 is provided with a liquid replenishing solenoid valve, and the liquid outlet end 16 at the bottom is provided with a liquid outlet solenoid valve. Both the liquid replenishing solenoid valve and the liquid outlet solenoid valve are connected to the single chip controller.

[0026] The working process of the automatic infusion and flushing device for enteral nutrition tube of the utility model is described in detail below.

[0027] The hanging belt 2 on the nutrient solution bag 4 is hung on the hook 1, and the first heater 5 is controlled to work by the single-chip controller 11. When the temperature of the nutrient solution in the nutrient solution bag reaches the set value, the single-chip controller controls the first heater to stop working and controls the peristaltic pump 10 to start. The nutrient solution filtered by the arc filter 6 enters the nutrient tube 13 through the pipeline 9a, the pipeline 9b, and the first port of the three-way joint 14, and is delivered into the patient's body through the nutrient tube; when the first temperature sensor 23 detects that the temperature of the nutrient solution is too low or too high, the signal is transmitted to the single-chip controller 11, and the single-chip controller adjusts the output power of the electric heating tube of the first heater 5 to achieve the appropriate temperature required for the nutrient solution, and the temperature is preferably 35-40°C.

[0028] When the cleaning liquid in the second cylinder 21 of the cleaning liquid container is needed to clean the nutrient tube, the single chip controller 11 controls the second heater 20 to work. When the temperature of the cleaning liquid reaches the set value, the single chip controller controls the second heater to stop working and controls the reciprocating pump 15 to work. The cleaning liquid enters the nutrient tube 13 through the pipeline 9d, the pipeline 9c and the second port of the three-way joint 14 to fully wash the tube wall of the nutrient tube and wash away the residue attached to the tube wall, thereby effectively reducing the occurrence of blockage and having a good use effect. When the second temperature reaches the set value, the second heater 20 stops working and controls the reciprocating pump 15 to work. When the temperature sensor 18 detects that the temperature of the cleaning liquid is too low or too high, it transmits a signal to the single-chip microcomputer controller, which adjusts the output power of the electric heating tube of the second heater 20 to keep the cleaning liquid within a certain temperature range; when the cleaning liquid level in the second cylinder 21 is lower than the set low value, the single-chip microcomputer controller controls the liquid level sound and light alarm to give an alarm, and at the same time disconnects the liquid outlet solenoid valve to stop the liquid outlet, and connects the liquid replenishment solenoid valve to replenish the cleaning liquid. When the liquid level is higher than the set high value, the single-chip microcomputer controller controls the liquid replenishment solenoid valve to disconnect and stop replenishing.

[0029] The above description is only a preferred embodiment of the present invention, and not a limitation of the present invention. Without departing from the spirit and scope of the present invention, all equivalent changes and modifications made within the scope of the patent application of the present invention shall fall within the scope of patent protection of the present invention.

Claims

1. An automatic infusion and flushing device for an enteral nutrition tube, comprising a box, a nutrient solution container and a cleaning solution container, wherein the nutrient solution container is arranged above the box, and comprises a first cylinder and a nutrient solution bag, wherein the nutrient solution bag is placed in the first cylinder, wherein a first temperature sensor and a first heater are arranged in the first cylinder, and a connector at the bottom of the nutrient solution bag extends out of the first cylinder; wherein: The cleaning liquid container is arranged inside the box body, and includes a second cylinder. The top of the second cylinder is provided with a liquid inlet end, the bottom is funnel-shaped and provided with a liquid outlet end, and the second cylinder is provided with a second temperature sensor, a liquid level sensor and a second heater; a peristaltic pump, a reciprocating pump, a three-way joint and a single-chip microcomputer controller are fixedly arranged in the box body, a first interface is arranged on the top of the box body, and a second interface is arranged on the side wall or the bottom; the liquid inlet of the peristaltic pump is connected with the first interface through a pipeline, and the liquid outlet of the peristaltic pump is connected with the first port of the three-way joint through a pipeline; the liquid inlet of the reciprocating pump is connected with the liquid outlet end of the second cylinder through a pipeline, and the liquid outlet of the reciprocating pump is connected with the second port of the three-way joint through a pipeline; the third port of the three-way joint is connected with the second interface; the connector at the bottom of the nutrient solution bag is connected with the first interface, and the second interface is used to connect one end of the nutrient tube; the first temperature sensor, the first heater, the peristaltic pump, the second temperature sensor, the liquid level sensor, the second heater and the reciprocating pump are all connected with the single-chip microcomputer controller.

2. The automatic infusion and flushing device for enteral nutrition tube according to claim 1, characterized in that: The first heater and the second heater both use electric heating tubes.

3. The automatic infusion and flushing device for enteral nutrition tube according to claim 1, characterized in that: The nutrient solution bag is provided with a hanging belt, and a hook is provided in the center of the top of the box body.

4. The automatic infusion and flushing device for enteral nutrition tube according to claim 1 or 3, characterized in that: An arc-shaped filter screen is arranged in the nutrient solution bag.

5. The automatic infusion and flushing device for enteral nutrition tube according to claim 1, characterized in that: The outer sides of the multiple pipes in the box are wrapped with insulation sleeves.

6. The automatic infusion and flushing device for enteral nutrition tube according to claim 1 or 5, characterized in that: The box body is provided with a plurality of buckles for fixing the plurality of pipes, or the box body is provided with a plurality of accommodating grooves for placing the plurality of pipes.

7. The automatic infusion and flushing device for enteral nutrition tube according to claim 1, characterized in that: The liquid inlet end at the top of the second cylinder is provided with a liquid replenishment solenoid valve, and the liquid outlet end at the bottom is provided with a liquid outlet solenoid valve. Both the liquid replenishment solenoid valve and the liquid outlet solenoid valve are connected to the single chip controller.

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