An enteral nutrition infusion tube capable of pressurizing a nutrient solution

Abstract

The utility model relates to medical equipment technical field, concretely relates to a kind of enteral nutrition infusion tube that can pressurize nutrient solution, including infusion tube body, pressurizing device is arranged in the infusion tube body, the infusion tube body is divided into upper and lower two ends by the pressurizing device, the pressurizing device includes pressurizing top cap and pressurizing base, the pressurizing top cap and the pressurizing base inside form a cavity, by making the cavity from big to small, so that the pressurizing device pressurizes the nutrient solution in the infusion tube body. In the application, the pressurizing device pressurizes the nutrient solution in the infusion tube body, can accelerate the flow speed of the nutrient solution in the infusion tube body, avoid due to the nutrient solution flow speed too slow and produce accumulation to be attached in the infusion tube inner wall for a long time to cause plugging, so that patient can and real ground supplement enough nutrient solution.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an enteral nutrition infusion tube that can pressurize nutrient solution. Background Technology

[0002] For many patients who cannot eat orally or have severe malabsorption or even complete malabsorption, enteral nutrition infusion tubes are usually required to deliver nutritional solutions. Currently available enteral nutrition infusion tubes typically connect one end to a nutrition bag and the other end to the body, delivering the nutritional solution from the nutrition bag into the body through the infusion tube. However, since most nutritional solutions are quite viscous, the flow of the nutritional solution within the infusion tube is slow, and prolonged adhesion of the nutritional solution to the inner wall of the infusion tube can cause blockage, preventing the patient from receiving sufficient nutritional solutions in a timely manner. Utility Model Content

[0003] The purpose of this invention is to address the problem that the nutrient solution in the infusion tube flows slowly and may even become blocked due to prolonged adhesion of the nutrient solution to the inner wall of the infusion tube, thus preventing patients from receiving sufficient nutrient solution in a timely manner. The invention designs an enteral nutrition infusion tube that can pressurize the nutrient solution to increase the flow rate of the nutrient solution in the infusion tube and prevent blockage.

[0004] To achieve the above-mentioned objectives, this utility model provides the following technical solution: An enteral nutrition infusion tube capable of pressurizing nutrient solution includes an infusion tube body, a pressurizing device disposed within the infusion tube body, the pressurizing device dividing the infusion tube body into upper and lower ends, the two ends of the upper end of the infusion tube being connected to a nutrient bag and the pressurizing device respectively, the two ends of the lower end of the infusion tube being connected to the pressurizing device and the human body respectively, the upper end of the infusion tube communicating with the pressurizing device and the lower end of the infusion tube, the pressurizing device being used to pressurize the nutrient solution within the infusion tube body; The pressurizing device includes a pressurizing top cover and a pressurizing base. The pressurizing top cover and the pressurizing base form a cavity. By reducing the size of the cavity, the pressurizing device pressurizes the nutrient solution inside the infusion tube body.

[0005] As the preferred technical solution of this application, the pressurizing device is sleeve-shaped, and the pressurizing top cover is sleeved on the pressurizing base. By moving the pressurizing top cover so that it moves relative to the pressurizing base along the central axis of the pressurizing device, the relative distance between the two is changed, thereby changing the size of the cavity.

[0006] As the preferred technical solution of this application, a first valve is provided at the connection between the upper end of the infusion tube and the pressurizing device, and a second valve is provided at the connection between the pressurizing device and the lower end of the infusion tube. The first valve is used to control the flow or blockage of the nutrient solution at the upper end of the infusion tube, and the second valve is used to control the flow or blockage of the nutrient solution at the lower end of the infusion tube. The first valve and the second valve cooperate to enable the pressurizing device to have three stages. When the pressurizing device is in the first stage, that is, in the initial state, both the first valve and the second valve are open, and the nutrient solution can flow into the human body through the upper end of the infusion tube, the pressurizing device and the lower end of the infusion tube; When the pressurizing device is in the second stage, the first valve is open and the second valve is closed. The nutrient solution at the upper end of the infusion tube flows, while the nutrient solution at the lower end of the infusion tube is blocked. The pressurizing top cover gradually moves away from the pressurizing base to the maximum relative distance, and the volume of the cavity gradually increases to the maximum. The pressurizing device draws in the nutrient solution at the upper end of the infusion tube. When the pressurizing device is in the third stage, the first valve is closed, the second valve is open, the nutrient solution at the upper end of the infusion tube is blocked, the nutrient solution at the lower end of the infusion tube flows, the relative distance between the pressurizing top cover and the pressurizing base gradually returns to the minimum from the maximum, the cavity volume gradually decreases to the minimum, and the pressurizing device pressurizes the nutrient solution at the lower end of the infusion tube.

[0007] As the preferred technical solution of this application, the first valve includes a first valve core and a first spring. The first valve core corresponds to the interface between the upper end of the infusion tube and the pressurizing device. The flow channel at the upper end of the infusion tube is named the first channel. The first valve core is used to control the opening or closing of the first channel. The first valve core is connected to the inner top surface of the pressurizing top cover by the first spring. The first spring is elastic and provides elastic force to make the first valve core close the first channel without external force. The first valve further includes a stop block, a stop block spring, and a push-out bracket. The stop block is disposed on the side of the first valve core. The stop block spring is connected to the inner side of the pressure-pressurizing top cover and is connected to the stop block. The stop block spring is elastic. The stop block can move relative to the top of the pressure-pressurizing top cover. The stop block is used to provide a thrust to the first valve core so that the first valve core can open the first channel. The push-out bracket is disposed on the pressure-pressurizing base. The push-out bracket moves synchronously with the pressure-pressurizing base. When the pressure device is in the first stage, the push-out bracket pushes the stop block, causing the stop block spring to extend. The stop block provides a thrust to the first valve core to open the first channel. When the pressure device is in the second or third stage, the stop block releases the constraint on the first valve core, so that the first valve has a one-way conduction structure.

[0008] As the preferred technical solution of this application, the second valve includes a second valve core, an isolation frame, a second spring, and a push rod. The isolation frame is disposed at the bottom of the pressurizing base and forms a gap with the bottom surface. The isolation frame is provided with a notch for transporting nutrient solution. The notch is named the second channel. The second valve core corresponds to the notch and is used to control the opening or closing of the second channel. The second valve core is connected to the connection between the pressurizing device and the lower end of the infusion tube by the second spring. The second spring is elastic and provides elastic force to make the second valve core close the second channel without external force. The push rod is mounted on the pressure cover and moves synchronously with the pressure cover. The push rod provides thrust to enable the second valve core to open the second channel. When the pressure device is in the first stage, the relative distance between the pressure cover and the pressure base is minimal. The push rod pushes the second valve core, compressing the second spring. The push rod provides thrust to the second valve core to open the second channel. When the pressure device is in the second or third stage, the push rod releases the constraint on the second valve core, making the second valve a one-way flow structure.

[0009] As the preferred technical solution of this application, the first valve core includes a plug and a first bracket. The plug is used to control the opening or closing of the first channel, and the first bracket is used to connect the first spring. The first bracket is a hollow strip-shaped plate.

[0010] As the preferred technical solution of this application, the top rod includes a top rod body and a support frame. The support frame is connected to the bottom side wall of the pressure top cover and is a hollow strip plate.

[0011] As the preferred technical solution of this application, the pressure top cover and the pressure base are connected by a pressure spring. The pressure spring is elastic and is used to provide elastic force to put the pressure device in the initial state.

[0012] As a preferred technical solution of this application, the infusion tube body is also provided with an airbag device, which is used to control the relative distance between the pressurized top cover and the pressurized base; The airbag device includes a first airbag and a second airbag. The first airbag is connected to the pressurizing device and is used to control the relative movement of the pressurizing top cover and the pressurizing base. The first airbag and the second airbag are connected by an air tube. The airbag device cooperates with the pressurizing spring in the pressurizing device. When the second airbag is compressed, the first airbag expands, the pressurizing spring deforms, and the relative distance between the pressurizing top cover and the pressurizing base increases. After the external force is removed, the pressurizing spring provides elastic force to gradually restore the original state, the first airbag gradually contracts, and the relative distance between the pressurizing top cover and the pressurizing base gradually decreases. The pressurizing device pressurizes the nutrient solution.

[0013] As a preferred technical solution of this application, the pressurizing device is further provided with a hook, which is used to fix the pressurizing device.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. In the solution of this application, by reducing the volume of the cavity inside the pressurizing device, the pressurizing device pressurizes the nutrient solution in the infusion tube body, which can accelerate the flow rate of the nutrient solution in the infusion tube body, avoid the accumulation caused by the slow flow rate of the nutrient solution, and prevent it from adhering to the inner wall of the infusion tube for a long time and causing blockage, so that the patient can receive sufficient nutrient solution in a timely manner.

[0015] 2. Furthermore, the presence of the two valves ensures that the nutrient solution inside the infusion tube is in a flowing state in the initial state of the pressurizing device, preventing the pressurizing device from drawing in the nutrient solution at the lower end of the infusion tube and preventing the nutrient solution in the pressurizing device from flowing back to the upper end of the infusion tube during pressurization. Only the nutrient solution at the lower end of the infusion tube is pressurized, resulting in a better pressurization effect and further improving the pressurizing device.

[0016] 3. Furthermore, the pressure top cover and the pressure base are connected by a pressure spring. In the initial state, the pressure spring does not deform. When the relative distance between the pressure top cover and the pressure base increases, the pressure spring will stretch or contract. At this time, when the external force is removed, the elastic force provided by the pressure spring will restore the pressure device to the initial state and pressurize the nutrient solution in the infusion tube body. The pressure spring enables the pressure device to have an automatic reset effect.

[0017] 4. Furthermore, by cooperating with the pressure spring in the pressurizing device, the automation of the entire device is further improved. In the initial state, the second airbag inflates, the first airbag contracts, and the pressure spring does not deform. When pressurization is required, the second airbag is compressed, at which point the first airbag inflates, the pressure spring deforms, and the pressurizing device draws in the nutrient solution. When the external force is removed, the pressure spring drives the pressurizing device to return to its original state, the first airbag is compressed, and the second airbag automatically returns to its original inflated state. Compared with the pull-out pressurizing device, the operation is simpler and more convenient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of one embodiment of an enteral nutrition infusion tube capable of pressurizing nutrient solution according to this application; Figure 2 This is a schematic diagram of one embodiment of the enteral nutrition infusion tube capable of pressurizing nutrient solution in the second stage of this application; Figure 3 This is an enlarged structural view of one embodiment of the first valve in an enteral nutrition infusion tube that can pressurize nutrient solution according to this application; Figure 4 This is an enlarged structural view of one embodiment of the second valve in an enteral nutrition infusion tube capable of pressurizing nutrient solution according to this application. The diagram shows: 1-Infusion tube body, 2-Pressure device, 3-First valve, 4-Second valve, 5-Airbag device, 11-Upper end of infusion tube, 12-Lower end of infusion tube, 21-Pressure cap, 22-Pressure base, 23-Pressure spring, 24-Hook, 31-First valve core, 32-First spring, 33-Abutting block, 34-Abutting block spring, 35-Push-out bracket, 41-Second valve core, 42-Isolation frame, 43-Second spring, 44-Push rod, 51-First airbag, 52-Second airbag, 53-Air tube, 311-Plug, 312-First bracket, 441-Push rod body, 442-Support frame. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0020] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0021] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] Example 1 An enteral nutrition infusion tube capable of pressurizing nutrient solution, see [link to relevant documentation]. Figures 1 to 4 As shown, the device includes an infusion tube body 1, which is equipped with a pressurizing device 2. The pressurizing device 2 divides the infusion tube body 1 into upper and lower ends. The two ends of the upper end 11 of the infusion tube are respectively connected to the nutrient bag and the pressurizing device 2, and the two ends of the lower end 12 of the infusion tube are respectively connected to the pressurizing device 2 and the human body. The upper end 11 of the infusion tube communicates with the pressurizing device 2 and the lower end 12 of the infusion tube. The pressurizing device 2 is used to pressurize the nutrient solution in the infusion tube body 1. The pressurizing device 2 includes a pressurizing top cover 21 and a pressurizing base 22. The pressurizing top cover 21 and the pressurizing base 22 form a cavity. By reducing the size of the cavity, the pressurizing device 2 pressurizes the nutrient solution in the infusion tube body 1.

[0025] In this application, by reducing the volume of the cavity inside the pressurizing device 2, the pressurizing device 2 pressurizes the nutrient solution in the infusion tube body 1, which can accelerate the flow rate of the nutrient solution in the infusion tube body 1, avoid the accumulation caused by the slow flow rate of the nutrient solution, and prevent it from adhering to the inner wall of the infusion tube for a long time and causing blockage, so that the patient can receive sufficient nutrient solution in a timely manner.

[0026] In a preferred embodiment, based on the above method, the pressurizing device 2 is further shaped as a sleeve, and the pressurizing top cover 21 is sleeved on the pressurizing base 22. By moving the pressurizing top cover 21 so that it moves relative to the pressurizing base 22 along the central axis of the pressurizing device 2, the relative distance between the two is changed, thereby changing the size of the cavity.

[0027] Furthermore, the pressurizing device 2 is configured as a sleeve, and the pressurizing top cover 21 or pressurizing base 22 is moved to maximize the relative distance between them. At this time, the cavity volume is maximized, which can store more nutrient solution inside the pressurizing device 2. Moreover, compared to reducing the cavity volume inside the pressurizing device 2 by squeezing, the cavity changes inside the sleeve-shaped pressurizing device 2 can be restored at will.

[0028] As a preferred embodiment, based on the above method, a first valve 3 is provided at the connection between the upper end 11 of the infusion tube and the pressurizing device 2, and a second valve 4 is provided at the connection between the pressurizing device 2 and the lower end 12 of the infusion tube. The first valve 3 is used to control the flow or blockage of the nutrient solution at the upper end 11 of the infusion tube, and the second valve 4 is used to control the flow or blockage of the nutrient solution at the lower end 12 of the infusion tube. The first valve 3 and the second valve 4 cooperate to make the pressurizing device 2 have three stages. When the pressurizing device 2 is in the first stage, that is, in the initial state, both the first valve 3 and the second valve 4 are open, and the nutrient solution can flow into the human body through the upper end 11 of the infusion tube, the pressurizing device 2 and the lower end 12 of the infusion tube. When the pressurizing device 2 is in the second stage, the first valve 3 is in the open state, the second valve 4 is in the closed state, the nutrient solution at the upper end 11 of the infusion tube flows, the nutrient solution at the lower end 12 of the infusion tube is blocked, the pressurizing top cover 21 gradually moves away from the pressurizing base 22 to the maximum relative distance, the volume of the cavity gradually increases to the maximum, and the pressurizing device 2 draws in the nutrient solution at the upper end 11 of the infusion tube; When the pressurizing device 2 is in the third stage, the first valve 3 is closed, the second valve 4 is open, the nutrient solution at the upper end 11 of the infusion tube is blocked, the nutrient solution at the lower end 12 of the infusion tube flows, the relative distance between the pressurizing top cover 21 and the pressurizing base 22 gradually returns to the minimum from the maximum, the cavity volume gradually decreases to the minimum, and the pressurizing device 2 pressurizes the nutrient solution at the lower end 12 of the infusion tube.

[0029] Furthermore, the presence of the two valves ensures that the nutrient solution inside the infusion tube body 1 and the pressurizing device 2 is in a flowing state in the initial state, preventing the pressurizing device 2 from sucking in the nutrient solution at the lower end 12 of the infusion tube in the second stage, and preventing the nutrient solution in the pressurizing device 2 from flowing back to the upper end 11 of the infusion tube in the third stage, so that only the nutrient solution at the lower end 12 of the infusion tube is pressurized, resulting in a better pressurization effect and further improving the pressurizing device.

[0030] In a preferred embodiment, based on the above method, the first valve 3 further includes a first valve core 31 and a first spring 32. The first valve core 31 corresponds to the interface between the upper end 11 of the infusion tube and the pressurizing device 2. The flow channel of the upper end 11 of the infusion tube is named the first channel. The first valve core 31 is used to control the opening or closing of the first channel. The first valve core 31 is connected to the inner top surface of the pressurizing top cover 21 through the first spring 32. The first spring 32 is elastic and provides elastic force so that the first valve core 31 closes the first channel without external force. The first valve further includes a stop block 33, a stop block spring 34, and a push-out bracket 35. The stop block 33 is disposed on the side of the first valve core 31. The stop block spring 34 is connected to the inner side of the pressure top cover 31 and connected to the stop block 33. The stop block spring 34 is elastic. The stop block 33 can move relative to the top of the pressure top cover 21. The stop block 33 is used to provide a thrust to the first valve core 31 so that the first valve core 31 can open the first channel. The push-out bracket 35 is disposed on the pressure base 22. The push-out bracket 35 moves synchronously with the pressure base 22. When the pressure device 2 is in the first stage, the push-out bracket 35 pushes the stop block 33, causing the stop block spring 34 to extend. The stop block 33 provides a thrust to the first valve core 31 to open the first channel. When the pressure device 2 is in the second or third stage, the stop block 33 releases the constraint on the first valve core 31, so that the first valve 3 has a one-way conduction structure.

[0031] Furthermore, when the pressurizing device 2 is in the first stage, the abutment block 33 pushes the first valve core 31 to open the first channel, allowing the nutrient solution in the infusion tube body 1 to continue flowing. When the pressurizing device 2 is in the second or third stage, under the action of pressure, the nutrient solution can only flow from the upper end 11 of the infusion tube to the pressurizing device 2 and cannot flow back. The simple mechanical structure plays a one-way guiding role, preventing the nutrient solution in the pressurizing device 2 from flowing back to the upper end 11 of the infusion tube.

[0032] In a preferred embodiment, based on the above method, the second valve 4 further includes a second valve core 41, an isolation frame 42, a second spring 43, and a push rod 44. The isolation frame 42 is disposed at the bottom of the pressurizing base 22 and forms a gap with the bottom surface. The isolation frame 42 is provided with a notch for transporting nutrient solution, and the notch is named the second channel. The second valve core 41 corresponds to the notch and is used to control the opening or closing of the second channel. The second valve core 41 is connected to the connection between the pressurizing device 2 and the lower end 12 of the infusion tube by the second spring 43. The second spring 43 is elastic and provides elastic force so that the second valve core 41 closes the second channel without external force. The push rod 44 is mounted on the pressure cover 21 and moves synchronously with the pressure cover 21. The push rod 44 provides thrust to enable the second valve core 41 to open the second channel. When the pressure device 2 is in the first stage, the relative distance between the pressure cover 21 and the pressure base 22 is minimal. The push rod 44 pushes the second valve core 41, compressing the second spring 43. The push rod 44 provides thrust to the second valve core 41 to open the second channel. When the pressure device 2 is in the second or third stage, the push rod 44 releases the constraint on the second valve core 41, making the second valve 4 have a one-way conduction structure.

[0033] Furthermore, when the pressurizing device 2 is in the first stage, the push rod 44 pushes the second valve core 41 to open the second channel, allowing the nutrient solution in the infusion tube body 1 to continue flowing. When the pressurizing device 2 is in the second or third stage, under the action of pressure, the nutrient solution can only flow from the pressurizing device 2 to the lower end 12 of the infusion tube and cannot flow back. The simple mechanical structure plays a one-way guiding role, preventing the nutrient solution at the lower end 12 of the infusion tube from being sucked into the pressurizing device 2. It eliminates the need for manual valve opening and closing, which is not only cumbersome but also prone to errors, thus saving more time and effort.

[0034] In a preferred embodiment, based on the above method, the first valve core 31 further includes a plug 311 and a first bracket 312. The plug 311 is used to control the opening or closing of the first channel, and the first bracket 312 is used to connect the first spring 32. The first bracket 312 is a hollow strip-shaped plate.

[0035] Furthermore, the first valve core 31 includes a first bracket 312, which increases the cross-sectional area of ​​the first valve core 31, making it easier for the abutment block 33 to contact the first valve core 31 and provide thrust. The first bracket 312 is a hollow strip plate, which will not affect the transmission of nutrient solution.

[0036] As a preferred embodiment, based on the above method, the top rod 44 further includes a top rod body 441 and a support frame 442. The support frame 442 is connected to the bottom side wall of the pressure top cover 21 and is a hollow strip plate.

[0037] Furthermore, the top rod 44 is located at the bottom of the pressure top cover 21. The top rod 44 can more easily contact and push out the second valve core 41 so that the second valve core 41 opens the second channel. The top rod 44 does not need to be set too long, which would risk breakage. The support frame 442 is a hollow strip plate, which will not affect the transmission of nutrient solution.

[0038] Example 2 Based on the technical solution of Embodiment 1, further details can be found in [reference 1]. Figures 1 to 4 As shown, the pressure top cover 21 and the pressure base 22 are connected by a pressure spring 23. The pressure spring 23 is elastic and is used to provide elastic force to put the pressure device 2 in the initial state.

[0039] Furthermore, the pressure top cover 21 and the pressure base 22 are connected by a pressure spring 23. In the initial state, the pressure spring 23 does not deform. When the relative distance between the pressure top cover 21 and the pressure base 22 increases, the pressure spring 23 will stretch or contract. At this time, when the external force is removed, the elastic force provided by the pressure spring 23 will restore the pressure device 2 to the initial state and pressurize the nutrient solution in the infusion tube body 1. The pressure spring 23 enables the pressure device 2 to have an automatic reset effect.

[0040] As a preferred embodiment, based on the above method, the infusion tube body 1 is further provided with an airbag device 5, which is used to control the relative distance between the pressurized top cover 21 and the pressurized base 22. The airbag device 5 includes a first airbag 51 and a second airbag 52. The first airbag 51 is connected to the pressurizing device 2 and is used to control the relative movement of the pressurizing top cover 21 and the pressurizing base 22. The first airbag 51 and the second airbag 52 are connected by an air tube 53. The airbag device 5 cooperates with the pressurizing spring 23 in the pressurizing device 2. When the second airbag 52 is compressed, the first airbag 51 expands, the pressurizing spring 23 deforms, and the relative distance between the pressurizing top cover 21 and the pressurizing base 22 increases. After the external force is removed, the pressurizing spring 23 provides elastic force to gradually restore the original state, the first airbag 51 gradually contracts, and the relative distance between the pressurizing top cover 21 and the pressurizing base 22 gradually decreases. The pressurizing device 2 pressurizes the nutrient solution.

[0041] Furthermore, the automation of the entire device is further enhanced by the cooperation between the airbag device 5 and the pressure spring 23 in the pressurizing device 2. In the initial state, the second airbag 52 inflates, the first airbag 51 contracts, and the pressure spring 23 does not deform. When pressurization is required, the second airbag 52 is compressed, the first airbag 51 inflates, the pressure spring 23 deforms, and the pressurizing device 2 draws in the nutrient solution. When the external force is removed, the pressure spring 23 drives the pressurizing device 2 to return to its original state, the first airbag 51 is compressed, and the second airbag 52 automatically returns to its original state. Compared with the pull-out pressurizing device 2, the operation is simpler and more convenient.

[0042] As a preferred embodiment, based on the above method, the pressurizing device 2 is further provided with a hook 24, which is used to fix the pressurizing device 2.

[0043] Furthermore, under the influence of gravity, the pressurizing device 2 may detach from the upper end 11 of the infusion tube, or the pressurizing device 2 may cause the upper end 11 of the infusion tube to detach from the nutrient bag. The pressurizing device 2 is fixed with the hook 24 to make the whole structure more stable.

[0044] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.

Claims

1. An enteral nutrition infusion tube capable of pressurizing nutrient solution, characterized in that: The device includes an infusion tube body, which is equipped with a pressurizing device. The pressurizing device divides the infusion tube body into upper and lower ends. The two ends of the upper end of the infusion tube are respectively connected to a nutrient bag and the pressurizing device, and the two ends of the lower end of the infusion tube are respectively connected to the pressurizing device and the human body. The upper end of the infusion tube and the pressurizing device communicate with the lower end of the infusion tube. The pressurizing device is used to pressurize the nutrient solution inside the infusion tube body. The pressurizing device includes a pressurizing top cover and a pressurizing base. The pressurizing top cover and the pressurizing base form a cavity. By reducing the size of the cavity, the pressurizing device pressurizes the nutrient solution inside the infusion tube body.

2. The enteral nutrition infusion tube for pressurizing nutrient solution as described in claim 1, characterized in that: The pressurizing device is sleeve-shaped, and the pressurizing top cover is sleeved on the pressurizing base. By moving the pressurizing top cover so that it moves relative to the pressurizing base along the central axis of the pressurizing device, the relative distance between the two is changed, thereby changing the size of the cavity.

3. The enteral nutrition infusion tube for pressurizing nutrient solution as described in claim 2, characterized in that: A first valve is provided at the connection between the upper end of the infusion tube and the pressurizing device, and a second valve is provided at the connection between the pressurizing device and the lower end of the infusion tube. The first valve is used to control the flow or blockage of the nutrient solution at the upper end of the infusion tube, and the second valve is used to control the flow or blockage of the nutrient solution at the lower end of the infusion tube. The first valve and the second valve work together to enable the pressurizing device to have three stages. When the pressurizing device is in the first stage, that is, in the initial state, both the first valve and the second valve are in the open state; When the pressurization device is in the second stage, the first valve is in the open state and the second valve is in the closed state; When the pressurization device is in the third stage, the first valve is closed and the second valve is open.

4. The enteral nutrition infusion tube for pressurizing nutrient solution as described in claim 3, characterized in that: The first valve includes a first valve core and a first spring. The first valve core corresponds to the interface between the upper end of the infusion tube and the pressurizing device. The flow channel at the upper end of the infusion tube is named the first channel. The first valve core is used to control the opening or closing of the first channel. The first valve core is connected to the inner top surface of the pressurizing top cover by the first spring. The first spring is elastic and provides elastic force to make the first valve core close the first channel without external force. The first valve further includes a stop block, a stop block spring, and a push-out bracket. The stop block is disposed on the side of the first valve core. The stop block spring is connected to the inner side of the pressure-pressurizing top cover and is connected to the stop block. The stop block spring is elastic. The stop block can move relative to the top of the pressure-pressurizing top cover. The stop block is used to provide a thrust to the first valve core so that the first valve core can open the first channel. The push-out bracket is disposed on the pressure-pressurizing base. The push-out bracket moves synchronously with the pressure-pressurizing base. When the pressure device is in the first stage, the push-out bracket pushes the stop block, causing the stop block spring to extend. The stop block provides a thrust to the first valve core to open the first channel. When the pressure device is in the second or third stage, the stop block releases the constraint on the first valve core, so that the first valve has a one-way conduction structure.

5. The enteral nutrition infusion tube for pressurizing nutrient solution as described in claim 4, characterized in that: The second valve includes a second valve core, an isolation frame, a second spring, and a push rod. The isolation frame is disposed at the bottom of the pressurizing base and forms a gap with the bottom surface. The isolation frame has a notch for transporting nutrient solution, which is named the second channel. The second valve core corresponds to the notch and is used to control the opening or closing of the second channel. The second valve core is connected to the lower end of the pressurizing device and the infusion tube by the second spring. The second spring is elastic and provides elastic force to close the second channel without external force. The push rod is mounted on the pressure cover and moves synchronously with the pressure cover. The push rod provides thrust to enable the second valve core to open the second channel. When the pressure device is in the first stage, the relative distance between the pressure cover and the pressure base is minimal. The push rod pushes the second valve core, compressing the second spring. The push rod provides thrust to the second valve core to open the second channel. When the pressure device is in the second or third stage, the push rod releases the constraint on the second valve core, making the second valve a one-way flow structure.

6. The enteral nutrition infusion tube for pressurizing nutrient solution as described in claim 5, characterized in that: The first valve core includes a plug and a first bracket. The plug is used to control the opening or closing of the first channel, and the first bracket is used to connect the first spring. The first bracket is a hollow strip-shaped plate.

7. The enteral nutrition infusion tube for pressurizing nutrient solution as described in claim 6, characterized in that: The top rod includes a top rod body and a support frame. The support frame is connected to the bottom side wall of the pressure top cover and is a hollow strip-shaped plate.

8. An enteral nutrition infusion tube capable of pressurizing nutrient solution as described in claim 7, characterized in that: The pressure top cover and the pressure base are connected by a pressure spring. The pressure spring is elastic and is used to provide elastic force to put the pressure device in its initial state.

9. An enteral nutrition infusion tube capable of pressurizing nutrient solution as described in claim 8, characterized in that: The infusion tube body is also provided with an airbag device, which is used to control the relative distance between the pressurized top cover and the pressurized base; The airbag device includes a first airbag and a second airbag. The first airbag is connected to the pressurizing device and is used to control the relative movement of the pressurizing top cover and the pressurizing base. The first airbag and the second airbag are connected by an air tube. The airbag device cooperates with the pressurizing spring in the pressurizing device. When the second airbag is compressed, the first airbag expands, the pressurizing spring deforms, and the relative distance between the pressurizing top cover and the pressurizing base increases. After the external force is removed, the pressurizing spring provides elastic force to gradually restore the original state, the first airbag gradually contracts, and the relative distance between the pressurizing top cover and the pressurizing base gradually decreases. The pressurizing device pressurizes the nutrient solution.

10. An enteral nutrition infusion tube capable of pressurizing nutrient solution as described in claim 9, characterized in that: The pressurizing device is also equipped with a hook for fixing the pressurizing device.

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