Portable enteral nutrition pump

Abstract

The utility model relates to the field of medical instruments, in particular to a portable enteral nutrition pump which comprises a shell and the like. The shell is an assembly carrier of the nutrition pump, and the shell is a small frame body with an opening in the front side; the peristaltic pump is fixedly installed at the inner bottom of the shell, a guiding circular groove and a pipeline groove are formed in the peristaltic pump, and the peristaltic pump serves as a power source for infusion of nutrient solution of the nutrition pump; the rotating disc is rotationally mounted in the circular groove of the peristaltic pump, and the rotating disc is a triangular-like disc of which the corners are not completely symmetrical; the three extrusion wheels are installed at the three vertex angles of the rotating disc in a circumferential rotating mode. The peristaltic pump, the servo motor and the nutrition tank are integrated in the small and exquisite shell, so that the whole equipment is small in size, light in weight, convenient to carry and move and suitable for scenes needing to be transferred among different places for use, such as the inside and the outside of a ward.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical apparatus and instruments, especially to a portable enteral nutrition pump. BACKGROUND

[0002] Enteral nutrition is a method of providing nutritional support through the gastrointestinal tract, especially suitable for patients who cannot eat normally or whose digestive and absorptive functions are impaired. In order to ensure that these patients can obtain accurate and continuous nutritional supply, an enteral nutrition pump, a medical device, is specially designed to control and deliver nutritional liquid into the gastrointestinal tract of patients.

[0003] The conventional enteral nutrition pump device is large in size, usually needs to be fixed on the bedside or trolley, and has problems such as complicated operation and inconvenience of portability. For patients who need to move in and out of the ward or hope to receive treatment at home, such a device is very inconvenient to use, greatly limiting the freedom of movement of patients. Therefore, in view of the defects existing in the above-mentioned related technologies, we propose a portable enteral nutrition pump to solve the above problems. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a portable enteral nutrition pump.

[0005] The technical solution of this utility model is as follows: a portable enteral nutrition pump, comprising a shell, which serves as the assembly carrier for the nutrition pump, and is a compact frame with an opening on the front; further comprising: a peristaltic pump, fixedly installed at the inner bottom of the shell, the peristaltic pump having a guide circular groove and a pipe groove, the peristaltic pump being the power source for the nutrition pump to infuse nutrient solution; a rotating disk, rotatably installed in the circular groove of the peristaltic pump, the rotating disk being a triangular disk with slightly asymmetrical edges and corners; three extrusion wheels, circumferentially rotatably installed at the three apex corners of the rotating disk; a servo motor, embedded and fixedly installed on the peristaltic pump, the output shaft of the servo motor being connected to the rotating shaft of the rotating disk; a delivery tube, assembled in the pipe groove of the peristaltic pump and contacting and extruding with the extrusion wheels, the delivery tube being a soft and elastic flexible tube; and a limiting member, provided with... On the peristaltic pump, the limiting member facilitates the insertion of the delivery tube into the circular groove of the peristaltic pump; a nutrient tank, disposed on the outer shell, is used to provide nutrient solution. A discharge pipe is connected to the lower side wall of the nutrient tank, and one end of the delivery tube is sealed to the discharge pipe. A connecting pipe is provided on the side wall of the outer shell, and the other end of the delivery tube is sealed to the connecting pipe. The connecting pipe facilitates connection to an external feeding pipe. A servo motor drives a rotating disk and a squeezing wheel to rotate, causing the squeezing wheel to sequentially press against the delivery tube and form a continuous pushing action, allowing the nutrient solution in the nutrient tank to be infused through the delivery tube. By adjusting the speed of the servo motor, the speed at which the tube is squeezed is affected, thereby precisely controlling the flow rate of the liquid. Furthermore, the entire nutrient pump is composed of a compact outer shell integrating a peristaltic pump and a nutrient tank, making it easy to carry and move, suitable for use inside and outside wards.

[0006] In one embodiment, a U-shaped handle is rotatably mounted on the outer wall of the housing, and a rubber sleeve is provided on the handle. The handle facilitates the user's carrying and movement of the nutrient pump, and the rubber sleeve improves the stability of the nutrient pump when it is moved.

[0007] In one embodiment, a placement rack is provided at the inner bottom of the outer shell. The placement rack is a cylindrical shell adapted to the nutrient tank. An "L"-shaped sliding groove is provided on the side wall of the placement rack. The discharge pipe of the nutrient tank can be slidably inserted into the placement rack through the sliding groove, which facilitates the stable assembly and disassembly of the nutrient tank on the outer shell.

[0008] In one embodiment, a protective cover with a sealing cap is provided at the top opening of the nutrient tank. The protective cover is used to cover the nutrient tank to prevent external dust and other foreign objects from entering when the nutrient tank is placed inside the outer shell for infusion, and to facilitate the refilling of nutrient solution and cleaning of the nutrient tank.

[0009] In one of the embodiments, the limiting piece comprises a lifting plate and a cylinder, the lifting plate is symmetrically fixed and installed at two sides of the peristaltic pump, the lifting plate is fixedly connected between the telescopic rods of the two cylinders, the lifting plate is an arched plate matched with the circular groove of the peristaltic pump, the lifting plate can press down and limit the upper part of the conveying pipe supported by the squeezing wheel, the cylinder drives the lifting plate to lift up, then the conveying pipe is placed into the circular groove and the pipeline groove of the peristaltic pump, and then the cylinder drives the lifting plate to limit the conveying pipe, so that the assembly convenience and stability of the conveying pipe are improved.

[0010] In one of the embodiments, the limiting piece comprises a lifting plate and a cylinder, the lifting plate is symmetrically fixed and installed at two sides of the peristaltic pump, the lifting plate is fixedly connected between the telescopic rods of the two cylinders, the lifting plate is an arched plate matched with the circular groove of the peristaltic pump, the lifting plate can press down and limit the upper part of the conveying pipe supported by the squeezing wheel, the cylinder drives the lifting plate to lift up, then the conveying pipe is placed into the circular groove and the pipeline groove of the peristaltic pump, and then the cylinder drives the lifting plate to limit the conveying pipe, so that the assembly convenience and stability of the conveying pipe are improved.

[0011] The utility model discloses the beneficial effect:

[0012] 1, the utility model discloses a peristaltic pump, servo motor and nutrient tank are integrated in a small and exquisite shell, make whole equipment volume is small and light in weight, convenient to carry and remove, be suitable for the scene that needs to shift between different places uses, such as in and outside the ward.

[0013] 2, the utility model discloses the servo motor is used to drive the rotating disc and squeezing wheel, can be through the accurate control of the flow of nutrient solution of adjusting motor speed, satisfies the demand of different patients to the infusion speed of nutrient solution, ensures the effectiveness and safety of treatment.

[0014] 3, the utility model discloses the " U " shape handle of shell and rubber sleeve design can increase the portability of equipment, and the nutrient tank adopts the way of sliding groove and is placed in the rack, simplifies the process of assembly and disassembly, and conveniently washes and recharges nutrient solution. DRAWINGS

[0015] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0016] Figure 2 It is the schematic diagram of the utility model peristaltic pump, rotating disc, squeezing wheel and limiting plate cooperation.

[0017] Figure 3 It is the three-dimensional structure schematic diagram of the utility model rotating disc, squeezing wheel and servo motor.

[0018] Figure 4 It is the three-dimensional structure schematic diagram of the utility model lifting plate and cylinder.

[0019] Marked in the figure: 1: shell, 101: butt joint pipe, 2: handle, 3: rubber sleeve, 4: peristaltic pump, 5: rotating disc, 6: extrusion wheel, 7: servo motor, 8: conveying pipe, 9: lifting plate, 10: air cylinder, 11: limiting plate, 12: placing rack, 13: nutrient tank, 14: discharge pipe, 15: protective cover. DETAILED DESCRIPTION

[0020] The utility model is further explained below in combination with the drawings and specific embodiments. In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0021] A portable enteral nutrition pump, such as Figures 1-4As shown, including the shell 1, the shell 1 is the assembly carrier of the nutrient pump, the shell 1 is a small frame with a front opening; further comprising: peristaltic pump 4, fixedly installed on the inner bottom of the shell 1, the peristaltic pump 4 is provided with a guiding circular groove and a pipeline groove, the peristaltic pump 4 is the power source of the nutrient pump infusion nutrient solution; rotating disc 5, rotatably installed in the circular groove of the peristaltic pump 4, the rotating disc 5 is a triangular disc with incomplete corner symmetry; extrusion wheel 6, provided with three top corners and rotatably installed on the rotating disc 5; servo motor 7, embedded and fixedly installed on the peristaltic pump 4, the output shaft of the servo motor 7 is connected with the rotating shaft of the rotating disc 5; delivery pipe 8, assembled in the pipeline groove of the peristaltic pump 4 and in contact with the extrusion wheel 6, the delivery pipe 8 is a soft pipe with softness and elasticity; limiting piece, provided on the peristaltic pump 4, the limiting piece facilitates the delivery pipe 8 to be put into the circular groove of the peristaltic pump 4; nutrient tank 13, provided on the shell 1, the nutrient tank 13 is used for providing nutrient solution, the lower side wall of the nutrient tank 13 is communicated with a discharge pipe 14, one end of the delivery pipe 8 is sealingly connected with the discharge pipe 14, the side wall of the shell 1 is provided with a butt joint pipe 101, the other end of the delivery pipe 8 is sealingly connected with the butt joint pipe 101, the butt joint pipe 101 facilitates butt joint with the pipeline of external feeding, the servo motor 7 drives the rotating disc 5 and the extrusion wheel 6 to rotate, so that the extrusion wheel 6 presses the delivery pipe 8 in turn and forms a continuous pushing action, so that the nutrient solution in the nutrient tank 13 is infused through the delivery pipe 8, by adjusting the rotating speed of the servo motor 7, the speed of the soft pipe being extruded is affected, thereby the flow rate of the liquid is accurately controlled, and the whole nutrient pump is composed of the small shell 1 of the integrated peristaltic pump 4 and the nutrient tank 13, which is convenient for carrying and moving, and is suitable for use in and out of the ward; the outer wall of the shell 1 is rotatably provided with a "U" shaped handle 2, the handle 2 is provided with a rubber sleeve 3, the handle 2 facilitates the user to carry and move the nutrient pump, and the rubber sleeve 3 improves the stability of the moving nutrient pump.

[0022] As shown in Figure 1 , the inner bottom of the shell 1 is provided with a placing rack 12, the placing rack 12 is a cylindrical shell adapted to the nutrient tank 13, the side wall of the placing rack 12 is provided with an "L" shaped sliding groove, the nutrient tank 13 is slidably clamped and placed on the placing rack 12 through the discharge pipe 14, which facilitates the stable assembly and disassembly of the nutrient tank 13 on the shell 1; a sealing cover is provided on the top opening of the nutrient tank 13, the protective cover 15 is used to shield the nutrient tank 13, prevent external dust and other foreign matters from entering when the nutrient tank 13 is placed in the shell 1 for infusion, and facilitate the nutrient tank 13 to reload nutrient solution and cleaning.

[0023] As shown in Figure 1 , Figure 2 , and Figure 4As shown, the limiting member includes a lifting plate 9 and a gas cylinder 10, the lifting plate 9 is fixedly installed on the two sides of the peristaltic pump 4, the lifting plate 9 is connected between the two gas cylinders 10, the lifting plate 9 is an arched plate matched with the circular groove of the peristaltic pump 4, the lifting plate 9 can press and limit the upper part of the conveying pipe 8 opened by the squeezing wheel 6, the gas cylinder 10 drives the lifting plate 9 to lift up, then the conveying pipe 8 is put into the circular groove and the pipe groove of the peristaltic pump 4, and then the lifting plate 9 is driven by the gas cylinder 10 to limit the conveying pipe 8, thereby improving the assembly convenience and stability of the conveying pipe 8.

[0024] As shown in Figure 1 and Figure 2 The limiting plate 11 is also included, the limiting plate 11 is installed on the front side of each squeezing wheel 6, the limiting plate 11 is a disc and has a diameter larger than that of the squeezing wheel 6, the limiting plate 11 is used to better limit the conveying pipe 8, so as to avoid the conveying pipe 8 on the peristaltic pump 4 from falling off during infusion.

[0025] When using the portable enteral nutrition pump, first, the nutrition tank 13 is installed in the placing rack 12 and ensured to be correctly clamped in position through the "L"-shaped sliding groove, then the lifting plate 9 is lifted up by the gas cylinder 10, so as to facilitate the placement of the conveying pipe 8, and a soft and elastic conveying pipe 8 is placed in the pipe groove of the peristaltic pump 4, after the placement of the conveying pipe 8 is completed, the lifting plate 9 is driven downward by the gas cylinder 10 to limit the conveying pipe 8 and keep it stable, finally, the two ends of the conveying pipe 8 are respectively connected to the butt joint pipe 101 at the shell 1 and the discharge pipe 14 of the nutrition tank 13, and the butt joint pipe 101 is connected to the patient's body through external pipeline, after ensuring that all components are installed correctly, the servo motor 7 is started, the output shaft of the servo motor 7 drives the rotating disc 5 connected thereto to rotate in the circular groove of the peristaltic pump 4, the plurality of squeezing wheels 6 roll along the conveying pipe 8 with the rotation of the rotating disc 5, with the rotation of the squeezing wheels 6, the conveying pipe 8 is periodically pressed in turn, with the continuous rotation of the squeezing wheels 6, the part of the conveying pipe 8 pressed gradually returns to its original state, forming a continuous pushing action, the continuous pressure action makes the nutrition liquid in the conveying pipe 8 flow forward, realizing the process of conveying the nutrition liquid from the nutrition tank 13 to the patient's body, since each squeezing wheel 6 is provided with a larger diameter limiting plate 11 in front, the conveying pipe 8 can be effectively prevented from falling off or moving during infusion due to external factors, ensuring the safety and stability of the entire infusion process, by adjusting the rotating speed of the servo motor 7, the speed of the squeezing wheels 6 pressing the conveying pipe 8 can be changed, and then the flow rate of the nutrition liquid can be accurately controlled, ensuring the safety and accuracy of the nutrition supply, in order to facilitate operation and maintenance, the nutrition pump can be conveniently carried through the handle 2, so that the user can easily move the equipment, adapt to different scenes inside and outside the ward, and the protective cover 15 can also protect the nutrition liquid in the nutrition tank 13 from external pollution.

[0026] While the present disclosure has been described with respect to a limited number of embodiments, those skilled in the art will appreciate numerous modifications and variations therefrom. It is intended that the appended claims cover all such modifications and variations as fall within the scope of this present disclosure.

Claims

1. A portable enteral nutrition pump, comprising a shell (1) as an assembly carrier of the nutrition pump; characterized in that Further comprising: a peristaltic pump (4) fixedly installed on the inner bottom of the shell (1), the peristaltic pump (4) being provided with a guided circular groove and a pipeline groove; a rotating disc (5) rotatably installed in the circular groove of the peristaltic pump (4); three squeezing wheels (6) provided at three vertices of the rotating disc (5) and rotatably installed in the rotating disc (5); a servo motor (7) embeddedly and fixedly installed on the peristaltic pump (4), an output shaft of the servo motor (7) being connected with a rotating shaft of the rotating disc (5); a conveying pipe (8) assembled in the pipeline groove of the peristaltic pump (4) and in contact with the squeezing wheels (6) for extrusion; a limiting piece provided on the peristaltic pump (4), the limiting piece facilitating the conveying pipe (8) to be put into the circular groove of the peristaltic pump (4); a nutrition tank (13) provided on the shell (1), the nutrition tank (13) being used for providing a nutrition liquid, a lower side wall of the nutrition tank (13) being communicated with a discharge pipe (14), one end of the conveying pipe (8) being sealingly butted with the discharge pipe (14), a side wall of the shell (1) being provided with a butt joint pipe (101), the other end of the conveying pipe (8) being sealingly butted with the butt joint pipe (101), the butt joint pipe (101) facilitating butt joint with an external feeding pipeline.

2. A portable enteral feeding pump as defined in claim 1, characterized in that A "U"-shaped handle (2) is rotatably installed on the outer wall of the shell (1), the handle (2) being provided with a rubber sleeve (3).

3. A portable enteral feeding pump as defined in claim 2, wherein, An inner bottom of the shell (1) is provided with a placing rack (12), the placing rack (12) being a cylindrical shell body adapted to the nutrition tank (13), a side wall of the placing rack (12) being provided with an "L"-shaped sliding groove.

4. A portable enteral feeding pump as defined in claim 3, wherein A sealingly covered protective cover (15) is provided at an opening of the top of the nutrition tank (13), the protective cover (15) being used for shielding the nutrition tank (13).

5. A portable enteral feeding pump as defined in claim 4, wherein, The limiting piece comprises a lifting plate (9) and a pneumatic cylinder (10), the lifting plate (9) being provided with two symmetrically fixedly installed side walls of the peristaltic pump (4), the lifting plate (9) being fixedly connected between two telescopic rods of the pneumatic cylinder (10), the lifting plate (9) being an arched plate adapted to the circular groove of the peristaltic pump (4), the lifting plate (9) being capable of pressing down and limiting the upper part of the conveying pipe (8) which is pried open by the squeezing wheels (6).

6. A portable enteral feeding pump as defined in claim 5, wherein, Further comprising a limiting plate (11), the limiting plate (11) being a disc and having a diameter greater than the squeezing wheels (6), the limiting plate (11) being used for better limiting the conveying pipe (8).

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