Nutrition supply device

Abstract

The invention discloses a nutrition supply device, relates to the technical field of nutrition supply of gastrointestinal surgery, and provides the following scheme that the nutrition supply device comprises a heating pipeline mechanism, the rear end of the heating pipeline mechanism is connected with a nutrient solution conveying control mechanism, and the rear end of the nutrient solution conveying control mechanism is connected with a nutrient solution bottle; the front end of the heating pipeline mechanism is connected with a middle-section pipeline mechanism, and the front end head of the middle-section pipeline mechanism is provided with a stretching-in pipeline mechanism. The nutrient canal is prevented from being blocked through the peristaltic pump principle, and meanwhile discomfort caused by increasing of the diameter of the canal is avoided; a connecting pipe and elastic band fixing mode is adopted, so that the pipeline is effectively prevented from falling off; the heating pipeline mechanism ensures that the temperature of the nutrient solution is controllable, and the patient comfort is improved; in combination with an intra-abdominal pressure sensor and a servo motor, personalized and automatic adjustment of the nutrient solution conveying speed is realized; through temperature control and accurate dripping speed adjustment, the preservation time of the nutrient solution is prolonged, and the long-time feeding requirement is met.

Description

Technical Field

[0001] The present invention relates to the technical field of gastrointestinal surgical nutrition supply, and particularly relates to a nutrition supply device. Background Art

[0002] In current medical practice, nutrition supply devices are widely used in patients who require parenteral or enteral nutrition support.

[0003] However, traditional nutrition supply devices have a series of problems: First, the diameter of the nutrition tube in the conventional adult specification is small and is prone to blockage, while increasing the pipe diameter will increase the discomfort of the patient. Second, traditional fixing methods, such as using adhesive tape to paste the nutrition tube on both sides of the patient's nose, are prone to falling off, resulting in the need for re-catheterization, increasing the pain of the patient and the medical cost.

[0004] In addition, traditional nutrition supply devices lack temperature control. If the temperature of the nutrient solution is not suitable, it will affect the patient's tolerance and the stability of the nutrient solution. Also, the drip rate of the nutrient solution often cannot be adjusted according to the individual conditions of the patient, unable to meet the needs of personalized nutrition support. Finally, during the long-term feeding process, the nutrient solution is prone to deterioration, affecting the patient's nutrient intake and treatment effect. Summary of the Invention

[0005] In view of the defects proposed in the above background art, a technical solution for a nutrition supply device is provided.

[0006] It includes a heating pipeline mechanism, the rear end of the heating pipeline mechanism is connected to a nutrient solution delivery control mechanism, the rear end of the nutrient solution delivery control mechanism is connected to a nutrient solution bottle, the front end of the heating pipeline mechanism is connected to a middle pipeline mechanism, and an insertion pipeline mechanism is provided at the front end of the middle pipeline mechanism; The heating pipeline mechanism includes a delivery pipe, a pipeline pressure sensor fixedly connected to the rear section of the side wall of the delivery pipe, and a foam jacket covering the front section of the delivery pipe. A number of electric heating rings are linearly arrayed and fixed on the inner side wall of the cavity of the foam jacket, and the inner heating end surface of the electric heating ring contacts the outer surface of the front section of the delivery pipe; The middle pipeline mechanism includes a connecting pipe, an arc-shaped groove recessed inward on the middle section side wall of the connecting pipe, and two elastic bands fixedly connected to the head and tail ends of the connecting pipe; The insertion pipeline mechanism includes a silicone tube, an intra-abdominal pressure sensor fixed on the front side wall of the silicone tube, and a cable connected to the data transmission end of the intra-abdominal pressure sensor; The nutrient solution bottle includes a bottle, a liquid extraction pipe inserted into the inner cavity of the bottle, and a transmission pipe connected to the outer end of the liquid extraction pipe located outside the bottle through a nozzle; The nutrient solution delivery control mechanism includes a base, a fixed disk fixedly connected to the bottom surface of the base, and a housing fixed to the fixed disk. A servo motor is fixedly connected to the bottom surface of the housing. The output shaft of the servo motor penetrates into the interior of the housing and is connected to a rotating shaft. A driving gear is fixed on the outer ring of the rotating shaft. A transmission shaft is rotatably penetrated through the interior of the fixed disk. The bottom end of the transmission shaft penetrates into the interior of the housing and is connected to a driven gear that meshes with the driving gear; A rotor is rotatably arranged in the inner cavity of the base. The top end of the transmission shaft is fixedly connected to the bottom end face of the rotor. 8-10 cylinders are rotatably arranged in a circular array on the outer ring surface of the rotor. A peristaltic tube penetrates through the inner cavity of the base, and the inner side wall of the peristaltic tube contacts the outer ring surface of the cylinder. The two ends of the peristaltic tube are respectively connected to a liquid inlet port and a liquid outlet port.

[0007] In the technical solution of the above-mentioned nutrient supply device, preferably: the rear end of the delivery pipe is connected to the end of the liquid outlet port far from the peristaltic tube, and the front end of the delivery pipe is fixedly connected to the rear end of the connecting pipe.

[0008] In the technical solution of the above-mentioned nutrient supply device, preferably: a joint is fixed on the rear section of the side wall of the delivery pipe, and the detection end of the pipeline pressure sensor is inserted into the inner cavity of the delivery pipe through the joint.

[0009] In the technical solution of the above-mentioned nutrient supply device, preferably: a plurality of annular grooves for inlaying and fixing the power heating rings are linearly arranged on the inner side wall of the foam jacket.

[0010] In the technical solution of the above-mentioned nutrient supply device, preferably: the end of the connecting pipe far from the delivery pipe is fixedly connected to the rear end of the silica gel tube. The arc surface of the arc-shaped groove contacts the surface of the upper lip perimeter or the chin of the human body. The elastic band is wound around the ear of the human body to restrain the posture of the connecting pipe.

[0011] In the technical solution of the above-mentioned nutrient supply device, preferably: the end of the cable far from the intra-abdominal pressure sensor is connected to the data receiving end of the abdominal pressure monitor.

[0012] In the technical solution of the above-mentioned nutrient supply device, preferably: a nutrient solution is provided in the inner cavity of the bottle, and the bottom end of the liquid extraction pipe extends deep into the bottom area of the inner cavity of the bottle.

[0013] In the technical solution of the above-mentioned nutrient supply device, preferably: the end of the transmission pipe far from the liquid extraction pipe is connected to the end of the liquid inlet port far from the peristaltic tube.

[0014] In the technical solution of the above-mentioned nutritional feeding device, preferably: the top end face of the base is locked and connected with an upper end cover by screws, and the bottom end face of the base is provided with a through hole for the top end of the transmission shaft to penetrate, and a ball bearing is arranged inside the through hole.

[0015] In the technical solution of the above-mentioned nutritional feeding device, preferably: the top end of the rotating shaft is rotatably connected with the lower surface of the fixed disk, and a circular hole for the output shaft of the servo motor to pass through is opened at the bottom end face of the housing.

[0016] It can be seen from the above technical solutions that the present invention provides a nutritional feeding device. Compared with the prior art, the present invention has the following beneficial effects: 1. By adopting a nutrient solution delivery control mechanism based on the peristaltic pump principle, the device can effectively prevent pipeline blockage without increasing the diameter of the nutrient tube, thereby reducing the discomfort of patients caused by the increased diameter of the pipeline.

[0017] 2. The middle pipeline mechanism is designed with a connecting pipe and an elastic band, which can closely fit the facial contour of the patient and be fixed on the ears through the elastic band, effectively avoiding the pipeline from falling off due to the patient's movement or the weakening of the adhesive tape's stickiness, and reducing the inconvenience and pain brought to the patient by reinserting the tube.

[0018] 3. The heating pipeline mechanism heats the delivery pipe through an electric heating ring and a foam jacket, realizing precise control of the temperature of the nutrient solution, improving the comfort of the patient, and also contributing to the stable preservation of the nutrient solution.

[0019] 4. By driving the transmission shaft by a servo motor and combining the real-time monitoring data of the intra-abdominal pressure sensor, the delivery speed of the nutrient solution can be automatically adjusted according to the patient's intestinal pressure and peristalsis conditions, realizing personalized and automated drip speed control, and improving the accuracy and effectiveness of nutritional feeding.

[0020] 5. Through the temperature control of the heating pipeline mechanism and the drip speed adjustment of the nutrient solution delivery control mechanism, the stability and freshness of the nutrient solution during the feeding process can be ensured, the preservation time of the nutrient solution can be extended, and the nutritional intake requirements of the patient during the long-term feeding process can be met. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce and explain the drawings required for describing the embodiments of the present invention or the prior art. Obviously, the drawings described below are only partial embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a schematic diagram of the overall structure of the nutrient solution supply device; Figure 2 Schematic diagram of the overall structure of the supply pipeline; Figure 3 Schematic diagram of the heating pipeline mechanism; Figure 4 Schematic diagram of the middle-section pipeline mechanism; Figure 5 Schematic diagram of the extending pipeline mechanism; Figure 6 Schematic diagram of the nutrient solution bottle; Figure 7 Schematic diagram of the nutrient solution delivery control mechanism.

[0023] Appendix Figure 1 -Appendix Figure 7 The corresponding relationships of the components therein are as follows: 1. Heating pipeline mechanism; 11. Delivery pipe; 12. Pipeline pressure sensor; 13. Connector; 14. Foam jacket; 15. Electric heating ring; 16. Annular groove; 2. Middle-section pipeline mechanism; 21. Connecting pipe; 22. Arc-shaped groove; 23. Protrusion; 24. Elastic band; 3. Extending pipeline mechanism; 31. Silicone tube; 32. Cable; 33. Intra-abdominal pressure sensor; 4. Nutrient solution bottle; 41. Bottle; 42. Liquid extraction pipe; 43. Transmission pipe; 5. Nutrient solution delivery control mechanism; 51. Base; 52. Fixed disk; 53. Driven gear; 54. Rotating shaft; 55. Servo motor; 56. Driving gear; 57. Transmission shaft; 58. Cylinder; 59. Liquid inlet port; 510. Upper end cover; 511. Rotor; 512. Liquid outlet port; 513. Housing. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention. In order to more clearly explain and illustrate the technical solutions and implementation manners of the present invention, the following describes the preferred specific embodiments for implementing the technical solutions of the present invention.

[0025] This nutrient supply device is composed of a heating pipeline mechanism 1, a middle-section pipeline mechanism 2, an extending pipeline mechanism 3, a nutrient solution bottle 4, and a nutrient solution delivery control mechanism 5. Each mechanism is sequentially connected through pipelines to form a complete path from nutrient solution storage to heating and delivery and finally into the patient's body.

[0026] The heating pipeline mechanism 1 is used to heat the nutrient solution to an appropriate temperature and monitor the pipeline pressure in real time. The delivery pipe 11 is made of medical-grade silicone material, with an inner diameter of 4 mm and an outer diameter of 6 mm. The rear end is connected to the liquid outlet port 512 through a quick-release joint, and the front end is heat-sealed to the connecting pipe 21 by hot melting. The pipeline pressure sensor 12 is model PT124B-111, with a measurement range of 0-50 kPa, and is embedded in the side wall of the delivery pipe through a threaded joint 13. The sensor detection end extends 2 mm into the pipe cavity, and the real-time data is transmitted to the external controller through wire transmission. The foam jacket 14 is wrapped around the front section of the delivery pipe 11, with a length of about 15 cm, made of polyurethane foam, and a thickness of 5 mm. Six annular grooves 16 are opened inside the foam jacket 14, with a spacing of 2 cm, for fixing the electric heating ring 15. The electric heating ring 15 is made of nickel-chromium alloy material, with an inner diameter of 6 mm, a width of 3 mm, and a power of 10 W per unit. The temperature is adjusted through a PID temperature control module, with a target value of 37±1°C, and a temperature sensor is embedded in the inner wall of the delivery pipe 11 to feedback data. When the nutrient solution flows through the delivery pipe 11, the electric heating ring 15 conducts heat evenly through the foam jacket 14 to avoid local overheating; the pipeline pressure sensor 12 monitors blockages or abnormal pressure fluctuations.

[0027] The middle-section pipeline mechanism 2 is used to fix the pipeline direction, adapt to the human facial contour, and reduce compression. The connecting pipe 21 is made of medical-grade PVC material, with a length of 20 cm and an outer diameter of 5 mm. The two ends are respectively connected to the delivery pipe 11 and the silicone tube 31 through Luer connectors. The arc-shaped groove 22 is located in the middle section of the connecting pipe, with a groove curvature radius of 15 mm and a depth of 2 mm, and the surface is covered with a silicone soft pad; it fits the upper lip or chin to disperse pressure and avoid skin pressure sores caused by long-term use. The elastic bands 24 are two adjustable elastic bands with a width of 1 cm, with hooks at the ends, and are fixed around the ears; nylon reinforcing wires are built into the bands to prevent stretching and deformation.

[0028] The inserted pipeline mechanism 3 is used to deliver the nutrient solution to the stomach and monitor the intra-abdominal pressure. Among them, the outer diameter of the silicone tube 31 is 3 mm and the length is 1.2 m, and multiple side holes are provided at the front end of 10 cm to disperse the liquid flow and avoid the nutrient solution from impacting the stomach and intestines; the intra-abdominal pressure sensor 33 is a micro piezoresistive sensor, model MS5837-30BA, encapsulated on the side wall of the front end of the silicone tube; the detection range is -10 kPa to +30 kPa, with an accuracy of ±0.5% FS, and is connected to an external monitor through a cable 32. The cable 32 is a shielded twisted pair with a diameter of 1 mm, spirally wound and fixed along the outer wall of the silicone tube, and the end is connected to an external monitor.

[0029] The nutrient solution bottle 4 is used to store and supply nutrient solution. In addition, the bottle 41 is made of transparent PET material, with a volume of 500 ml, a threaded cap on the bottle mouth, and a built-in bacterial filter membrane; the liquid extraction tube 42 is 30 cm long, and a gravity hammer is equipped at the bottom to ensure that it is always immersed in the liquid surface; the transmission tube 43 connects the liquid extraction tube and the liquid inlet port 59, and is made of TPU with a pressure resistance of 0.3 MPa. The function of the nutrient solution delivery control mechanism 5 is to control the flow rate of the nutrient solution. The base 51 and the shell 513 are both made of ABS injection molding, with an inner diameter of 8 cm and a shell height of 5 cm. The servo motor 55 adopts a stepper motor, subdivided drive, and an adjustable speed of 50-200 rpm. The rotating shaft 54 ​​is connected to the motor output shaft through a coupling. The driving gear 56 has a module of 0.5 and a number of teeth of 20, and meshes with the driven gear 53 with a module of 0.5 and a number of teeth of 60, with a reduction ratio of 3:1. The rotor 511 and the cylinder 58: the rotor has a diameter of 6 cm, and 8 stainless steel cylinders are evenly distributed around the circumference, with a diameter of 8 mm. The surface of the cylinder is coated with a ceramic layer to reduce the friction loss with the peristaltic tube. The peristaltic tube is made of silicone, with an inner diameter of 3 mm, a wall thickness of 2 mm, and a pre-compression amount of 30%. The servo motor receives an external control signal and changes the extrusion frequency by adjusting the speed; the flow calculation formula is: Q=n×V×ηn is the speed, V is the single extrusion volume, and η is the efficiency coefficient. The relationship of the pipeline connection is as follows: transmission tube 43→liquid inlet port 59→peristaltic tube→liquid outlet port 512→delivery tube 11; front end of the delivery tube→connecting tube 21→silicone tube 31. The electrical control connection relationship is as follows: electric heating ring 15→PID temperature control module; pipeline pressure sensor 12 and intra-abdominal pressure sensor 33→data acquisition card→host computer display.

[0030] The working process of the nutrition feeding device is as follows: hang the nutrient solution bottle 4 on the bracket, insert the silicone tube 31 into the stomach through the nasal cavity; fix the elastic band 24 around the ear, and fit the arc groove 22 to the chin. Turn on the heating pipeline mechanism and set the target temperature to 37°C; set the flow rate of the delivery control mechanism to 50ml / h, and start the servo motor. Adjust the flow rate according to the data of the intra-abdominal pressure sensor to avoid the intra-gastric pressure exceeding 15mmHg; when the pipeline pressure is abnormal, such as >20kPa, trigger an alarm and suspend delivery.

[0031] Embodiment 1: This embodiment optimizes the heating pipeline mechanism and the fixing method of the middle pipeline to achieve rapid disassembly and assembly and magnetic attachment.

[0032] Improvements to the heating pipeline mechanism 1: The foam jacket 14 is divided into upper and lower halves and connected by snap fasteners, which can be quickly wrapped around or disassembled from the front section of the delivery pipe 11; the electric heating ring 15 is changed to a spiral wound heating wire with a power of 20 W / m, replacing the ring structure and evenly covering the outer wall of the delivery pipe; a Bluetooth module is added, and the heating temperature can be set to be adjustable from 35 to 40 °C through a mobile phone APP. In the improvement of the middle section pipeline mechanism 2, the arc-shaped groove 22 is embedded with a magnetic soft rubber layer of neodymium iron boron magnetic sheet + silicone encapsulation, which adsorbs to the corresponding magnetic patch medical grade magnet sheet at the patient's chin and is attached to the skin surface; the elastic band 24 is replaced with an adjustable magnetic snap: magnet blocks are provided at both ends and fixed behind the ears by magnetic force to avoid elastic fatigue.

[0033] In the improvement of the nutrient solution delivery control mechanism 5, two groups of rotors 511 are arranged in parallel in the base 51 and driven by the same servo motor 55 through a double-output shaft gear; the peristaltic tube is divided into main and standby pipelines, and when the pressure sensor 12 detects a blockage, the standby pipeline is automatically switched to ensure continuous delivery. Moreover, the transmission tube 43 is connected to the liquid inlet port 59 by a quick-connect fitting, which is convenient for replacing the nutrient solution bottle 4; the cable 32 of the intra-abdominal pressure sensor 33 integrates a wireless transmission module, and a wired interface is retained to be compatible with traditional monitors.

[0034] After magnetically fixing the middle section pipeline, the heating temperature and flow rate are set through the APP, and the double peristaltic pumps work alternately; when the pipeline pressure exceeds 25 kPa or the intra-abdominal pressure > 18 mmHg, an audible and visual alarm is triggered and the delivery is paused.

[0035] Embodiment 2: This embodiment is aimed at home or mobile scenarios, miniaturizes the device and integrates it into a wearable device.

[0036] Replace the electric heating ring 15 with a flexible electric heating film, use a graphene electric heating film to wrap the front section of the delivery pipe 11; directly print the circuit on the film and supply power through USB 5V / 2A, and the heating efficiency is increased by 40%; the entire delivery pipe 11 uses a spiral spring tube covered with silicone, allowing it to be bent and worn around the neck. The connecting pipe 21 is changed to a transparent TPU hose, and the arc-shaped groove 22 is embedded with a bioadhesive patch, which is directly adhered to the skin on the side of the nose wing; the elastic band 24 is cancelled and replaced with a micro suction cup fixed on the cheek to reduce the foreign body sensation on the face.

[0037] The servo motor 55 is replaced with a linear stepper motor with a stroke of 10 mm to drive a push rod to squeeze a micro peristaltic tube; the diameter of the rotor 511 is reduced to 3 cm, the number of cylinders is reduced to 4, and the overall volume is reduced by 60%; the housing 513 is integrated with a lithium battery. The bottle 41 is changed to a flexible PE liquid storage bag with a volume of 100 ml, pre-packaged with sterile nutrient solution; a puncture needle is provided at the front end of the liquid extraction tube 42, which automatically seals after being inserted into the liquid storage bag to avoid contamination. The intra-abdominal pressure sensor 33 is added with a pH detection function to real-time feedback the acidity and alkalinity of gastric juice; the pipeline pressure sensor 12 is linked with the mobile phone APP to automatically generate an infusion report. When the intra-abdominal pressure abnormality is detected continuously for 3 times, it automatically switches to the pulse-type low-speed delivery mode.

[0038] Finally, it should also be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the implementation conditions of this application. Therefore, they do not have technical substantial significance. Any modification of the structure, change of the ratio relationship or adjustment of the size, without affecting the effects that this application can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed in this application can cover.

Claims

1. A nutrition feeding device, comprising a heating pipeline mechanism (1), characterized in that: The rear end of the heating pipeline mechanism (1) is connected to a nutrient solution delivery control mechanism (5), the rear end of the nutrient solution delivery control mechanism (5) is connected to a nutrient solution bottle (4), the front end of the heating pipeline mechanism (1) is connected to a middle pipeline mechanism (2), and the front end of the middle pipeline mechanism (2) is provided with an insertion pipeline mechanism (3); The heating pipeline mechanism (1) comprises a delivery pipe (11), a pipeline pressure sensor (12) fixedly connected to the rear section of the side wall of the delivery pipe (11), and a foam jacket (14) covering the front section of the delivery pipe (11), a plurality of electric heating rings (15) being fixed in a linear array on the inner cavity side wall of the foam jacket (14), and the inner heating end surface of the electric heating ring (15) is in contact with the outer ring surface of the front section of the delivery pipe (11); The middle section pipeline mechanism (2) comprises a connecting pipe (21), an arc-shaped groove (22) recessed inwardly provided on the side wall of the middle section of the connecting pipe (21), and two elastic bands (24) fixedly connected to the head and tail ends of the connecting pipe (21); The pipeline insertion mechanism (3) comprises a silicone tube (31), an intra-abdominal pressure sensor (33) fixed to the front end side wall of the silicone tube (31), and a cable (32) connected to the data transmission end of the intra-abdominal pressure sensor (33); The nutrient solution bottle (4) comprises a bottle (41), a liquid extraction tube (42) inserted into the inner cavity of the bottle (41), and a transmission tube (43) connected to the liquid extraction tube (42) via a nozzle and located at the outer end of the bottle (41); The nutrient solution delivery control mechanism (5) comprises a base (51), a fixed plate (52) fixedly connected to the bottom surface of the base (51), and a shell (513) fixed to the fixed plate (52), and a servo motor (55) fixedly connected to the bottom surface of the shell (513), an output shaft of the servo motor (55) passing through the inside of the shell (513) and connected to a rotating shaft (54), a driving gear (56) being fixed on the outer ring of the rotating shaft (54), a transmission shaft (57) passing through and rotating inside the fixed plate (52), a bottom end of the transmission shaft (57) passing through the inside of the shell (513) and connected to a driven gear (53) meshing with the driving gear (56); A rotor (511) is rotatably arranged in the inner cavity of the base (51), the top end of the transmission shaft (57) is fixedly connected to the bottom end surface of the rotor (511), 8-10 cylinders (58) are rotatably arranged in a ring array on the outer ring surface of the rotor (511), a peristaltic tube passes through the inner cavity of the base (51), and the inner side wall of the peristaltic tube contacts the outer ring surface of the cylinder (58), and the two ends of the peristaltic tube are respectively connected to a liquid inlet port (59) and a liquid outlet port (512).

2. A nutrition feeding device according to claim 1, characterized in that: The rear end of the delivery tube (11) is connected to an end of the liquid outlet port (512) away from the peristaltic tube, and the front end of the delivery tube (11) is fixedly connected to the rear end of the connecting tube (21).

3. A nutrition feeding device according to claim 1, characterized in that: A joint (13) is fixed to the rear section of the side wall of the delivery pipe (11), and the detection end of the pipeline pressure sensor (12) is inserted into the inner cavity of the delivery pipe (11) through the joint (13).

4. A nutrition feeding device according to claim 1, characterized in that: The inner side wall of the foam jacket (14) is provided with a plurality of annular grooves (16) in a linear array in which a plurality of power supply and heating rings (15) are embedded and fixed.

5. A nutrition feeding device according to claim 1, characterized in that: One end of the connecting tube (21) away from the delivery tube (11) is fixedly connected to the rear end of the silicone tube (31); the arc surface of the arc-shaped groove (22) contacts the upper lip or chin of the human body; and the elastic band (24) is wrapped around the ear of the human body to restrain the posture of the connecting tube (21).

6. A nutrition feeding device according to claim 1, characterized in that: One end of the cable (32) away from the intra-abdominal pressure sensor (33) is connected to a data receiving end of an abdominal pressure monitor.

7. A nutrition feeding device according to claim 1, characterized in that: Nutrient solution is provided in the inner cavity of the bottle (41), and the bottom end of the liquid extraction tube (42) penetrates into the bottom area of ​​the inner cavity of the bottle (41).

8. A nutrition feeding device according to claim 1, characterized in that: One end of the transmission tube (43) away from the liquid extraction tube (42) is connected to one end of the liquid inlet port (59) away from the peristaltic tube.

9. A nutrition feeding device according to claim 1, characterized in that: The top end surface of the base (51) is connected to an upper end cover (510) by screw locking, and the bottom end surface of the base (51) is provided with a through hole for the top end of the transmission shaft (57) to pass through, and a ball bearing is provided inside the through hole.

10. A nutrition feeding device according to claim 1, characterized in that: The top end of the rotating shaft (54) is rotatably connected to the lower surface of the fixed disk (52), and the bottom end surface of the housing (513) is provided with a circular hole for the output shaft of the servo motor (55) to pass through.

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