Enteral nutrition infusion apparatus

Abstract

The utility model belongs to the field of medical instruments, and particularly relates to an enteral nutrition infusion apparatus. The device comprises an infusion tube and a pump body, an infusion bag and a Murphy's dropper are connected to the infusion tube, a first mounting groove and a second mounting groove are formed in the front side wall of the pump body, a placement groove is fixed in the upper end of the first mounting groove, a photoelectric drop detector is mounted in the placement groove, and a peristaltic device is mounted in the lower end of the first mounting groove. A pipe clamp is fixed to the groove bottom of the second mounting groove, a heating assembly used for keeping the nutrient solution at the proper temperature is mounted in the second mounting groove, a heat preservation sleeve used for conducting heat preservation on the heated nutrient solution is arranged on the right side of the pump body, and the heat preservation sleeve is detachably mounted on the right side wall of the pump body through a connecting assembly. According to the embodiment, it can be guaranteed that a nutrient solution can be heated to the proper temperature before flowing out through the heating assembly, heat preservation is conducted on the heated nutrient solution through the heat preservation sleeve, and the heated nutrient solution is still at the proper temperature when flowing into the body of a patient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of medical apparatus and instruments, especially relates to an enteral nutrition infusion device. BACKGROUND

[0002] Enteral nutrition supply refers to a nutrition support method for supplying metabolism necessary nutrient substances and other various nutrients through gastrointestinal tract to ensure that patients can intake sufficient protein and heat, and is a clinical treatment method. In clinical practice, patients cannot perform normal nutrition supply due to swallowing dysfunction, coma, physical obstacles, postoperative inconvenience and other factors, cannot maintain daily nutritional needs, and must use enteral nutrition supply mode to maintain physiological needs. There are many infusion methods for enteral nutrition, and currently, a continuous infusion method is generally used in clinical practice. However, the temperature and infusion speed of enteral nutrition liquid directly affect the effect. If the temperature is too low or the infusion speed is too fast, the patient will have discomfort such as nausea, vomiting, abdominal distension, diarrhea, etc. Even the patient cannot tolerate and is forced to stop enteral nutrition. If the speed is too high, the digestive tract mucosa of the patient is damaged, and if the speed is too slow, the required heat is not reached or the pipeline is blocked, the gastrointestinal function cannot be well recovered, and the disease course is prolonged. The above deficiencies have been reported in many related documents, so the accuracy of the temperature and the balance of the speed are particularly important.

[0003] Currently, the control of the infusion speed mainly uses an enteral nutrition pump, and its core component is a peristaltic device. The device drives a wheel with a number of protrusions on the edge to rotate to continuously extrude the infusion tube, so as to form the peristaltic advance of the nutrient liquid. However, although the device can control the infusion speed of the nutrient liquid, it cannot guarantee that the temperature of the nutrient liquid is within the appropriate range (38-40 degrees Celsius). Especially in cold environments, the nutrient liquid in the section of the infusion tube between the nutrient pump and the patient will quickly be lower than the appropriate temperature, thereby causing adverse reactions. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims to provide an enteral nutrition infusion device that can guarantee that the temperature of the nutrient liquid is within the appropriate range and has a heat preservation function.

[0005] The enteral nutrition infusion device comprises an infusion tube and a pump body, the infusion tube is connected with an infusion bag and a Murphy drip tube, a first installation groove and a second installation groove are formed in the front side wall of the pump body, a placing groove for clamping the Murphy drip tube is fixed in the upper end of the first installation groove, a photoelectric drip detector for detecting the flow rate of the nutrient solution is installed in the placing groove, a peristaltic device for controlling the outflow rate of the nutrient solution is installed in the lower end of the first installation groove, a tube clamp for clamping the infusion tube is fixed in the groove bottom of the second installation groove, a heating assembly for keeping the nutrient solution at a proper temperature is installed in the second installation groove, a heat preservation sleeve for heat preservation of the heated nutrient solution is arranged on the right side of the pump body and is detachably installed on the right side wall of the pump body through a connecting assembly.

[0006] Further, the first installation groove is located at the left end of the front side wall of the pump body and has no upper groove wall, the second installation groove is located at the right lower end of the front side wall of the pump body, a first through groove which is communicated with the first installation groove and has no front groove wall is formed in the left side wall of the second installation groove, a second through groove which is communicated with the second installation groove and has no front groove wall is formed in the right side wall of the pump body, one end of the infusion tube enters the first installation groove from the left top of the pump body, then passes through the first through groove, the second installation groove and the second through groove in sequence, and then passes out from the right side wall of the pump body.

[0007] Further, the left side wall of the pump body is hinged with a first transparent plate for closing the first installation groove, and the bottom of the pump body is hinged with a second transparent plate for closing the second installation groove.

[0008] Further, the placing groove has a structure with an opening facing forward, and the top and the bottom are respectively provided with a first clamping groove and a second clamping groove for clamping the Murphy drip tube and the infusion tube.

[0009] Further, the top of the Murphy drip tube extends out of the placing groove.

[0010] Further, the peristaltic device comprises a disc installed in the groove bottom of the first installation groove, a motor is installed in the pump body for driving the disc to rotate, the front side wall of the disc is integrally formed with a ring of protrusions which are in contact with the infusion tube, a pressing block is fixed on the first transparent plate for making the infusion tube tightly contact with the protrusions when the first installation groove is closed, and a controller is installed in the pump body for receiving the signal of the photoelectric drip detector and changing the rotating speed of the motor.

[0011] Further, a central control screen is installed at the right upper end of the front side wall of the pump body and is electrically connected with the controller.

[0012] Further, the heating assembly comprises a heating sheet fixed on the bottom of the second mounting groove, the lower groove wall of the first mounting groove is fixed with a limiting block for supporting and bending the infusion tube, a first infrared temperature sensor for detecting the temperature of the nutrient solution before heating is mounted in the limiting block, a second infrared temperature sensor for detecting the temperature of the nutrient solution after heating is mounted in the right side wall of the pump body, and the first infrared temperature sensor, the second infrared temperature sensor and the heating sheet are electrically connected with the controller.

[0013] Further, the right side wall of the pump body is fixed with two connecting plates, the two connecting plates are located at the upper side and the lower side of the second through groove respectively, the two connecting plates are in arc-shaped structures and are provided with threads, one end of the heat preservation sleeve is fixed with a connecting head, and the connecting head is sleeved on the two connecting plates and is in threaded cooperation with the two connecting plates.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The embodiment can push the nutrient solution in the infusion tube to flow at different speeds through the peristaltic device, and the detection of the dropping speed of the nutrient solution by the photoelectric drop detector can effectively adjust the infusion speed of the nutrient solution to a suitable speed. The first infrared temperature sensor and the second infrared temperature sensor in the heating assembly can measure the temperature of the nutrient solution before and after heating respectively. When the first infrared temperature sensor detects that the temperature of the unheated nutrient solution is lower than the set minimum temperature, the heating sheet heats the nutrient solution. When the second infrared temperature sensor detects that the temperature of the heated nutrient solution is still lower than the set minimum temperature or higher than the set maximum temperature, the heating power of the heating sheet is increased or decreased, so that the nutrient solution can be heated to a suitable temperature before flowing out. The heat preservation sleeve detachably mounted on the right side wall of the pump body is sleeved on the infusion tube between the pump body and the patient, so that the heated nutrient solution can be heat preserved, thereby avoiding the phenomenon that the heated nutrient solution is obviously cooled due to the low external temperature during the period of flowing into the patient's body, so that the heated nutrient solution is still at a suitable temperature when flowing into the patient's body. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is a front side view of Figure 1

[0018] Figure 3 It is an enlarged view of A in Figure 1

[0019] Figure 4 It is a cooperation schematic view of the moffie dropper, the photoelectric drop detector and the placing groove;

[0020] ​​Figure 5 The flow control chart of the utility model;

[0021] The names of the components in the figure are as follows: 1, infusion bag; 2, infusion tube; 3, Murphy's drip tube; 4, photoelectric drop detector; 5, placing groove; 6, peristaltic device; 7, pump body; 8, first mounting groove; 9, limiting block; 10, first infrared temperature sensor; 11, heating sheet; 12, second mounting groove; 13, tube clamp; 14, heat preservation sleeve; 15, central control screen; 16, first transparent plate; 17, extrusion block; 18, second transparent plate; 19, connecting head; 20, second infrared temperature sensor; 21, connecting sheet; 22, controller. DETAILED DESCRIPTION

[0022] The utility model will be further described below by specific embodiments combined with the drawings, but it is not used to limit the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the invention.

[0023] Example 1

[0024] The enteral nutrition infusion device described in this embodiment comprises an infusion tube 2 and a pump body 7, the infusion tube 2 is connected with an infusion bag 1 and a Murphy's drip tube 3, as shown in Figure 1 , Figure 2 , the infusion bag 1 is connected with one end of the infusion tube 2, the Murphy's drip tube 3 is located on the section of the infusion tube 2 close to the infusion bag 1, the other end of the infusion tube 2 is connected with a patient end (such as a nasogastric tube), and the infusion bag 1 is made of transparent material and is provided with a scale line;

[0025] The front side wall of the pump body 7 is provided with a first mounting groove 8 and a second mounting groove 12, as shown in Figure 1 and Figure 2 , the first mounting groove 8 is located at the left end of the front side wall of the pump body 7 and has no upper groove wall, the second mounting groove 12 is located at the lower right end of the front side wall of the pump body 7, the left side wall of the second mounting groove 12 is provided with a first through groove in communication with the first mounting groove 8 and has no front groove wall, the right side wall of the pump body 7 is provided with a second through groove in communication with the second mounting groove 12 and has no front groove wall, one end of the infusion tube 2 enters the first mounting groove 8 from the left top of the pump body 7, then passes through the first through groove, the second mounting groove 12 and the second through groove in sequence, and then passes out from the right side wall of the pump body 7;

[0026] As shown in Figure 2 , the left side wall of the pump body 7 is hinged with a first transparent plate 16 for closing the first mounting groove 8, and the bottom of the pump body 7 is hinged with a second transparent plate 18 for closing the second mounting groove 12, both of which are closed in a clamping or magnetic attraction manner;

[0027] The upper end of the first mounting groove 8 is fixed with a placement groove 5 for holding the Mofe's dropper 3. The placement groove 5 has an opening facing forward, and the top and bottom are respectively provided with a first slot and a second slot for holding the Mofe's dropper 3 and the infusion tube 2. Figure 1 , Figure 2 and Figure 4 As shown, the width of the first slot is the same as the outer diameter of the Mofe's dropper 3, and the width of the second slot is the same as the outer diameter of the infusion tube 2. Both are the front wall of the slot. In this embodiment, the Mofe's dropper 3 is placed in the placement slot 5, and the upper end of the Mofe's dropper 3 is locked in the first slot, and the infusion tube 2 at the bottom of the Mofe's dropper 3 is locked in the second slot. At this time, the Mofe's dropper 3 abuts against the lower wall of the placement slot 5, so the position of the Mofe's dropper 3 can be effectively restricted and the Mofe's dropper 3 can be prevented from moving downward.

[0028] A photoelectric drip detector 4 for detecting the flow rate of the nutrient solution is installed in the placement tank 5. A disc is installed at the bottom of the first installation tank 8. A motor for driving the disc to rotate is installed in the pump body 7. The front side wall of the disc has an integrally formed protrusion that is in contact with the infusion tube 2. A squeezing block 17 is fixed on the first transparent plate 16 to make the infusion tube 2 fit tightly with the protrusion when the first installation tank 8 is closed. A controller 22 for receiving the signal from the photoelectric drip detector 4 and changing the motor speed is installed in the pump body 7. (The disc, motor, protrusion, and squeezing block mentioned in this paragraph are mentioned in the original text.) Block 17 and controller 22 together constitute the peristaltic device 6 for controlling the outflow rate of nutrient solution. The motor is a small servo motor or stepper motor. In this embodiment, the motor drives a disc with a raised ring to rotate. Simultaneously, the rotating raised ring continuously squeezes the infusion tube 2. At this time, the nutrient solution inside the infusion tube 2 flows in a peristaltic manner under the influence of the raised ring. Combined with the detection of the nutrient solution dripping speed by the photoelectric drip detector 4 and the control of the motor speed by the controller 22, the flow rate of the nutrient solution can be controlled. Figure 1 , Figure 2 and Figure 5 As shown, the infusion tube 2 is attached to the right half of the disc. The motor and controller 22 are both installed inside the pump body 7 (not shown in the figure). The power output end of the motor is fixed to the rear side wall of the disc. The central control screen 15 is installed on the upper right side of the front side wall of the pump body 7. The drip rate and temperature can be set through the central control screen 15, and the entire pump body 7 can be started. The central control screen 15, the motor, and the photoelectric drip detector 4 are all electrically connected to the controller 22 through wires.

[0029] refer to Figure 1 , Figure 2 , Figure 3 and Figure 5The groove bottom of the second installation groove 12 is fixed with a pipe clamp 13 for clamping the infusion tube 2, the groove bottom of the second installation groove 12 is installed with the heating sheet 11, the lower groove wall of the first installation groove 8 is fixed with a limiting block 9 for supporting and bending the infusion tube 2, the limiting block 9 is installed with a first infrared temperature sensor 10 for detecting the temperature of the nutrient solution before heating, the right side wall of the pump body 7 is installed with a second infrared temperature sensor 20 for detecting the temperature of the nutrient solution after heating, the first infrared temperature sensor 10, the second infrared temperature sensor 20 and the heating sheet 11 are electrically connected with the controller (in this paragraph, the heating sheet 11, the limiting block 9, the first infrared temperature sensor 10 and the second infrared temperature sensor 20 constitute the heating assembly for keeping the nutrient solution at a suitable temperature as a whole, wherein the heating sheet 11 is a carbon fiber heating sheet or a silica gel heating sheet), in this embodiment, the first infrared temperature sensor 10 and the second infrared temperature sensor 20 can respectively measure the temperature of the nutrient solution before and after heating, when the first infrared temperature sensor 10 detects that the temperature of the unheated nutrient solution is lower than the set minimum temperature, the controller 22 will control the heating sheet 11 to start heating the nutrient solution, when the second infrared temperature sensor 20 detects that the temperature of the heated nutrient solution is still lower than the set minimum temperature or higher than the set maximum temperature, the controller 22 will control the heating sheet 11 to increase or decrease the heating power, so as to ensure that the nutrient solution can be heated to a suitable temperature before flowing out, such as SWK11 series water temperature controller, ASPYRE, etc. can automatically start and stop the heater according to the set temperature, ensure constant water temperature, and can also monitor the water temperature in real time through the temperature sensor and automatically adjust the power of the heater;

[0030] As shown in Figure 1 , Figure 2 and Figure 3 , the limiting block 9 has two blocks, and a channel capable of allowing the infusion tube 2 to be bent by 90 degrees is formed between the two limiting blocks 9, through which the bending limiting and anti-sliding support of the infusion tube 2 can be realized, the pipe clamp 13 has a plurality of pipe clamps, so that the infusion tube 2 can be distributed in a snake shape in the second installation groove 12, thereby increasing the heating area, in actual application, the controller 22 can have two blocks, which are respectively used for controlling the start and stop of the motor and the start and stop of the heating sheet 11;

[0031] As shown in Figure 1 and Figure 2As shown, the right side of the pump body 7 is provided with a heat preservation sleeve 14 for heat preservation of the heated nutrient solution, two connecting plates 21 are fixed on the right side wall of the pump body 7 and are located on the upper side and the lower side of the second through groove respectively, the two connecting plates 21 are arc-shaped structures and are provided with threads, one end of the heat preservation sleeve 14 is fixed with a connecting head 19, the connecting head 19 is sleeved on the two connecting plates 21 and is in threaded cooperation with the two connecting plates 21 (the connecting plates 21 and the connecting head 19 in this paragraph constitute a connecting assembly for detachably mounting the heat preservation sleeve 14 on the right side wall of the pump body 7, and in actual application, the connecting head 19 can also be inserted into the two connecting plates 21), and in this embodiment, the heat preservation sleeve 14 is sleeved on the infusion tube between the pump body 7 and the patient, so that the heated nutrient solution can be heat preserved, thereby avoiding the phenomenon that the heated nutrient solution is obviously cooled due to the low temperature of the outside world during the period of flowing into the patient's body, so that the heated nutrient solution is still at a suitable temperature when flowing into the patient's body, and the heat preservation sleeve 14 is made of heat preservation material.

[0032] In use, first, the burette 3 is placed in the placement groove 5, the upper end of the burette 3 is clamped in the first clamping groove, the infusion tube 2 at the bottom of the burette 3 is clamped in the second clamping groove, the infusion tube 2 is wound around the passage between the two limiting blocks 9, the infusion tube 2 is attached to the disc of the peristaltic device 6, the infusion tube 2 is clamped on the pipe clamps 13 of the second mounting groove 12, the heat preservation sleeve 14 is sleeved from the second through groove, the connecting head 19 is screwed on the connecting plate 21, the infusion tube 2 is connected to the patient end and the relevant parameters are set, finally, the motor and the heating sheet 11 of the peristaltic device 6 are started, the controller 22 adjusts the rotating speed of the motor according to the drop speed detected by the photoelectric drop detector 4, and adjusts the heating power of the heating sheet 11 according to the temperatures detected by the first infrared temperature sensor 10 and the second infrared temperature sensor 20.

[0033] Embodiment 2

[0034] The embodiment further illustrates the technology, the top of the burette 3 extends out of the placement groove 5, as shown in Figure 1 and Figure 2 In this embodiment, the top of the burette 3 extends out of the placement groove 5, which facilitates medical staff to directly observe the drop speed of the nutrient solution.

Claims

1. An enteral nutrition infusion device, comprising an infusion tube (2) and a pump body (7), an infusion bag (1) and a Murphy drip (3) being connected to the infusion tube (2), characterized in that: The front side wall of the pump body (7) is provided with a first mounting groove (8) and a second mounting groove (12), the upper end of the first mounting groove (8) is fixedly provided with a placing groove (5) for clamping a Mohr dropper (3), the placing groove (5) is provided with a photoelectric droplet detector (4) for detecting the flow rate of the nutrient solution, the lower end of the first mounting groove (8) is provided with a peristaltic device (6) for controlling the flow rate of the nutrient solution, the groove bottom of the second mounting groove (12) is fixedly provided with a tube clamp (13) for clamping a transfusion tube (2), the second mounting groove (12) is provided with a heating assembly for keeping the nutrient solution at a suitable temperature, the right side of the pump body (7) is provided with a heat preservation sleeve (14) for heat preservation of the heated nutrient solution, and the heat preservation sleeve (14) is detachably mounted on the right side wall of the pump body (7) through a connecting assembly.

2. The enteral nutritional solution set of claim 1, wherein: The first mounting groove (8) is located at the left end of the front side wall of the pump body (7) and has no upper groove wall, the second mounting groove (12) is located at the right lower end of the front side wall of the pump body (7), the left side wall of the second mounting groove (12) is provided with a first through groove which is communicated with the first mounting groove (8) and has no front groove wall, the right side wall of the pump body (7) is provided with a second through groove which is communicated with the second mounting groove (12) and has no front groove wall, one end of the transfusion tube (2) enters the first mounting groove (8) from the left top of the pump body (7), and then passes through the first through groove, the second mounting groove (12) and the second through groove in sequence, and then passes out from the right side wall of the pump body (7).

3. The enteral nutritional solution set of claim 2, wherein: The left side wall of the pump body (7) is hingedly provided with a first transparent plate (16) for closing the first mounting groove (8), and the bottom of the pump body (7) is hingedly provided with a second transparent plate (18) for closing the second mounting groove (12).

4. The enteral nutritional solution set of claim 2, wherein: The placing groove (5) has an open forward structure, and the top and bottom are respectively provided with a first clamping groove and a second clamping groove for clamping the Mohr dropper (3) and the transfusion tube (2).

5. The enteral nutritional solution set of claim 4, wherein: The top of the Mohr dropper (3) extends out of the placing groove (5).

6. The enteral nutritional solution set of claim 2, wherein: The peristaltic device comprises a disc mounted on the groove bottom of the first mounting groove (8), the pump body (7) is provided with a motor for driving the disc to rotate, the front side wall of the disc is integrally formed with a ring of protrusions which are in close contact with the transfusion tube (2), the first transparent plate (16) is fixedly provided with an extrusion block (17) for making the transfusion tube (2) closely contact with the protrusions when the first mounting groove (8) is closed, and the pump body (7) is provided with a controller (22) for receiving the signal of the photoelectric droplet detector (4) and changing the rotating speed of the motor.

7. The enteral nutritional solution set of claim 6, wherein: The right upper end of the front side wall of the pump body (7) is provided with a central control screen (15) which is electrically connected with the controller (22).

8. The enteral nutritional solution set of claim 6 or 7, wherein: The heating assembly comprises a heating sheet (11) fixed on the groove bottom of the second mounting groove (12), the lower groove wall of the first mounting groove (8) is fixedly provided with a limiting block (9) for supporting and bending the transfusion tube (2), the limiting block (9) is provided with a first infrared temperature sensor (10) for detecting the temperature of the nutrient solution before heating, the right side wall of the pump body (7) is provided with a second infrared temperature sensor (20) for detecting the temperature of the nutrient solution after heating, and the first infrared temperature sensor (10), the second infrared temperature sensor (20) and the heating sheet (11) are electrically connected with the controller.

9. The enteral nutritional solution set of claim 2, wherein: The right side wall of the pump body (7) is fixed with two connecting plates (21), and the two connecting plates (21) are respectively located on the upper side and the lower side of the second through groove, the two connecting plates (21) are both arc-shaped structures and are provided with threads, one end of the heat preservation sleeve (14) is fixed with a connecting head (19), and the connecting head (19) is sleeved on the two connecting plates (21) and is in threaded cooperation with the two connecting plates (21).

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