Double-chamber nutrition pump tube connector

Abstract

The present invention discloses a double-cavity nutrition pump pipe joint, comprising: a delivery main pipe, the delivery main pipe comprising an inner cavity wall, the inner cavity wall being connected from top to bottom and enclosing a nutrient solution delivery cavity; the delivery main pipe further comprising an outer cavity wall, the outer cavity wall being sleeved on the outside of the inner cavity wall, the inner cavity wall and the outer cavity wall enclosing a liquid flow cavity; the lower end of the outer cavity wall being sealedly connected to the inner cavity wall, and the upper end of the outer cavity wall being open so that the liquid flow cavity is suitable for bypassing the upper end of the inner cavity wall and communicating with the nutrient solution delivery cavity; a joint connected to the lower end of the inner cavity wall and suitable for communicating with a feeding tube; an end cap connected to the upper end of the outer cavity wall; a flushing branch pipe arranged on the outer wall of the delivery main pipe; and a valve arranged on the flushing branch pipe. The double-cavity joint of the present invention does not require repeated disconnection and connection of the nutrition pump pipe, and thus does not cause the phenomenon of increased connection port, thereby ensuring the sealing of the double-cavity nutrition pump pipe joint connection, reducing water leakage, and avoiding contamination of medical beds.

Description

Technical Field

[0001] The invention relates to the technical field of pump tube conversion joints, and in particular to a double-cavity nutrition pump tube joint. Background Art

[0002] Currently, enteral nutrition support is an important treatment option that can accelerate patient recovery. An enteral nutrition supply device typically consists of an enteral nutrition pump and disposable enteral nutrition supply tubing. An enteral nutrition pump is a nutritional infusion pump designed for nasogastric feeding. It can deliver water, nutrient solution, and homemade rice milk of a certain concentration through a nasogastric tube. It features automatic infusion and an end-of-infusion alarm, making it suitable for long-term enteral nutrition delivery for patients who cannot properly absorb oral nutrients.

[0003] Among them, the feeding tube and the enteral nutrition pump need to be connected through a conversion joint. Considering the cost issue, single-cavity joints are mostly used in the current market to deliver nutrient solution. During the nutrient solution delivery process, the flushing operation needs to be completed every once in a while. However, the nutrient solution pump tube needs to be disassembled and then the flushing branch tube needs to be connected. Since the branch tube cavity needs to be repeatedly connected to the nutrient pump tube when flushing, this will cause the interface of the conversion joint to become loose, resulting in an increase in the connection port, a loose syringe connection joint, and water leakage during flushing. When the flushing branch tube leaks, problems such as bed sheet contamination and nutrient solution leakage will occur.

[0004] Directly connecting the branch pipe to the feeding tube can inject flushing water and nutrient solution separately, but the branch pipe can usually only be set on the side of the conversion joint. When the conversion joint is used vertically, the flushing water discharged from the branch pipe will not be able to flush the space above the inner cavity of the conversion joint, resulting in more nutrient solution adhering to the upper part of the inner cavity of the conversion joint and being unable to be cleaned off. Over time, bacteria will breed, and the nutrient solution will be contaminated when it is injected again. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that the single-cavity nutrient pump pipe joint needs to be frequently connected to the flushing branch pipe, causing looseness, and the defect that the branch pipe is set on the side of the single-cavity nutrient pump pipe joint, causing part of the nutrient solution to be unable to be flushed, thereby providing a double-cavity nutrient pump pipe joint.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] Double chamber nutrition pump tube connector, including:

[0008] A delivery main pipe, the delivery main pipe comprising an inner cavity wall, the inner cavity wall extending vertically and enclosing a nutrient solution delivery chamber; the delivery main pipe further comprising an outer cavity wall, the outer cavity wall being sleeved on the outside of the inner cavity wall, the inner cavity wall and the outer cavity wall enclosing a liquid flow chamber; the lower end of the outer cavity wall being sealed to the inner cavity wall, the upper end of the outer cavity wall being open, so that the liquid flow chamber is suitable for bypassing the upper end of the inner cavity wall and communicating with the nutrient solution delivery chamber;

[0009] a connector connected to the lower end of the inner cavity wall and adapted to be connected to a feeding tube;

[0010] an end cap connected to the upper end of the outer cavity wall and having a first connecting hole connected to the nutrient pump and the nutrient solution delivery cavity;

[0011] A flushing branch pipe is provided on the outer wall of the main delivery pipe and has a flushing water cavity in communication with the liquid flow cavity. The flushing water introduced into the flushing branch pipe enters the nutrient solution delivery cavity through the liquid flow cavity and cleans the nutrient solution delivery cavity.

[0012] The valve is arranged on the flushing branch pipe and can control the on-off and flow rate of the flushing branch pipe; the controlled end of the valve is connected to the output end of the controller.

[0013] Optionally, the end cover is provided with a first connecting hole capable of communicating with the nutrient solution pump tube.

[0014] Optionally, the first connecting hole is configured as a threaded hole.

[0015] Optionally, the end cover is provided with a first connecting piece and a first plug fixed to the first connecting piece, and the first plug is used to seal the first connecting hole.

[0016] Optionally, a protrusion located in the nutrient solution delivery chamber is provided downwardly at the bottom end of the end cover, and a through hole connected to the first connecting hole is provided on the protrusion; a liquid flow channel connecting the nutrient solution delivery chamber and the liquid flow chamber is formed between the outer wall of the protrusion and the inner wall of the delivery main pipe, and the flow direction of the flushing water discharged from the liquid flow channel is the same as the flow direction of the nutrient solution discharged from the first connecting hole.

[0017] Optionally, a one-way valve is provided in the through hole.

[0018] Optionally, a second connecting hole capable of being connected to a flushing pump tube or a cleaning syringe is provided at the end of the flushing branch tube.

[0019] Optionally, the flushing branch pipe is provided with a second connecting piece and a second plug fixed to the second connecting piece, and the second plug is used to seal the second connecting hole.

[0020] Optionally, the delivery main pipe and the flushing branch pipe are arranged in a Y shape.

[0021] Optionally, a plurality of pressure sensors are arranged on the inner wall of the delivery main pipe at intervals from top to bottom, and the output end of the pressure sensor is connected to the input end of the controller; the pressure sensor is used to detect the liquid pressure inside the nutrient solution delivery chamber and feed back the detection information to the controller.

[0022] The technical solution of the present invention has the following advantages:

[0023] 1. The double-cavity nutrition pump pipe joint provided by the present invention changes the existing single cavity into a double cavity, and directly arranges the flushing branch pipe next to the main delivery pipe, so that the flushing water cavity is connected to the nutrient solution delivery cavity, and a valve is provided on the flushing branch pipe, which ensures that the double-cavity joint does not need to be repeatedly disconnected and connected to the nutrition pump pipe, and thus the phenomenon of the connection port of the double-cavity nutrition pump pipe joint being enlarged will not occur, thereby ensuring the sealing of the double-cavity nutrition pump pipe joint connection, reducing water leakage, and avoiding contamination of medical beds; and can reduce the problem of multiple replacement of joints due to water leakage, avoiding waste of consumables; it can also reduce the workload of nurses and reduce the contamination of nutrient solution.

[0024] Furthermore, because a liquid flow cavity is formed on the delivery main pipe outside the liquid flow cavity, the liquid flow cavity extends to the end cap and communicates with the nutrient solution delivery cavity, and the liquid flow cavity is in turn communicated with the flushing water cavity, so the flushing water discharged from the flushing water cavity flows through the liquid flow cavity to the end cap and then enters the nutrient solution delivery cavity, thereby ensuring that the flushing water flushes outward from the end cap, thus ensuring that the entire nutrient solution delivery cavity is flushed. This avoids the possibility that part of the nutrient solution delivery cavity in the delivery main pipe cannot be flushed, and ensures a good flushing effect.

[0025] 2. The dual-chamber nutrient pump pipe connector provided by the present invention can be sealed with a first plug to block the first connecting hole when the main delivery pipe is not in use, preventing foreign objects from contaminating the nutrient solution delivery chamber. When the flushing branch pipe is not in use, a second plug can be sealed to the second connecting hole, further preventing foreign objects from contaminating the flushing water chamber.

[0026] 3. The double-cavity nutrient pump pipe joint provided by the present invention has a one-way valve provided in the through hole of the protrusion, and the one-way valve prevents the liquid in the nutrient solution delivery cavity from flowing back into the nutrient solution pump pipe.

[0027] 4. The double-chamber nutrient pump pipe joint provided by the present invention has a plurality of pressure sensors arranged on the inner wall of the delivery main pipe at intervals from top to bottom. The pressure sensors detect the liquid pressure inside the nutrient solution delivery chamber in real time, thereby controlling the opening size of the valve and realizing the control of the flushing water flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is a schematic structural diagram of a dual-chamber nutrition pump pipe joint of the present invention;

[0030] Figure 2 This is a cross-sectional view of the dual-chamber nutrition pump pipe joint of the present invention.

[0031] Reference numerals:

[0032] 1. Delivery main; 12. End cap; 13. Connector; 14. First connecting hole; 15. First plug; 16. First connecting piece; 18. Bump; 19. Liquid flow cavity; 110. Liquid flow channel; 111. Nutrient solution delivery cavity; 112. One-way valve;

[0033] 2. Flushing branch pipe; 21. Valve; 22. Second connecting hole; 23. Second plug; 24. Second connecting piece; 25. Flushing water chamber;

[0034] 3. Pressure sensor. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0038] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0039] like Figures 1 to 2 A specific embodiment of a double-chamber nutrition pump pipe connector shown includes a main delivery pipe 1 , a flushing branch pipe 2 and a valve 21 .

[0040] The main delivery tube 1 includes an inner wall extending vertically through the inner wall to enclose a nutrient solution delivery chamber 111. The main delivery tube 1 also includes an outer wall, which is positioned over the inner wall to enclose a liquid flow chamber 19. The lower end of the outer wall is sealed to the inner wall, while the upper end of the outer wall is open, allowing the liquid flow chamber 19 to bypass the upper end of the inner wall and connect to the nutrient solution delivery chamber 111.

[0041] One end of the main delivery tube 1 is equipped with an end cap 12 that connects to the nutrient pump, and the other end is equipped with a connector 13 that connects to the feeding tube. A nutrient solution delivery chamber 111 is defined within the main delivery tube 1. A liquid flow chamber 19 is defined on the main delivery tube 1 and is positioned around the periphery of the nutrient solution delivery chamber 111. This chamber 19 extends to the end cap 12 and connects to the nutrient solution delivery chamber 111.

[0042] The flushing branch pipe 2 is provided on the outer wall of the delivery main pipe 1 and has a flushing water cavity 25 therein that is connected to the liquid flow cavity 19. The flushing water introduced into the flushing branch pipe 2 enters the nutrient solution delivery cavity 111 through the liquid flow cavity 19 and cleans the nutrient solution delivery cavity 111.

[0043] A valve 21 is installed on the flushing branch pipe 2. This valve 21 controls the on / off state and flow rate of the flushing branch pipe. Valve 21 can be a solenoid valve or an electric gate valve, both of which are conventional technologies and will not be described in detail here. The controlled end of valve 21 is connected to the output of a controller. The controller can be a PLC or other type of controller, which automatically controls the on / off state and flow rate of valve 21.

[0044] Several pressure sensors 3 are arranged on the inner wall of the main delivery tube 1 from top to bottom. The output of the pressure sensor 3 is connected to the input of the controller. The pressure sensor 3 is used to detect the liquid pressure inside the nutrient solution delivery chamber 111 and feed the detection information back to the controller.

[0045] The dual-chamber nutrient pump pipe joint has a liquid flow chamber 19 formed on the delivery main pipe 1 outside the liquid flow chamber 19. The liquid flow chamber 19 extends to the end cap 12 and communicates with the nutrient solution delivery chamber 111. The liquid flow chamber 19 is in turn communicated with the flushing water chamber 25. Therefore, flushing water discharged from the flushing water chamber 25 flows through the liquid flow chamber 19 to the end cap 12 and then enters the nutrient solution delivery chamber 111. Thus, the flushing water is flushed outward from the end cap, ensuring that the entire nutrient solution delivery chamber 111 is flushed. This avoids the possibility that part of the nutrient solution delivery chamber in the delivery main pipe cannot be flushed, ensuring a good flushing effect.

[0046] The end cap 12 is provided with a first connection hole 14 that can be connected to the nutrient solution pump tube. The first connection hole 14 is set in a threaded hole shape, and then the nutrient pump tube can be connected to the end cap 12 by a threaded connection.

[0047] The end cover 12 is provided with a first connecting piece 16 and a first plug 15 fixed to the first connecting piece 16. The first plug 15 is used to seal the first connecting hole 14. When the delivery main pipe 1 is not in use, the first connecting hole 14 can be sealed by the first plug 15 to ensure that external debris will not contaminate the nutrient solution delivery chamber 111.

[0048] A protrusion 18 located in the nutrient solution delivery cavity 111 is provided downwardly at the bottom end of the end cover 12 , and a through hole communicating with the first connecting hole 14 is formed on the protrusion 18 .

[0049] As an improved implementation, a one-way valve 112 is provided in the through hole in this embodiment, and the one-way valve 112 prevents the liquid in the nutrient solution delivery chamber 111 from flowing back into the nutrient solution pump tube.

[0050] A liquid flow channel 110 is formed between the outer wall of the projection 18 and the inner wall of the main delivery tube 1. The liquid flow channel 110 connects the nutrient solution delivery chamber 111 and the liquid flow chamber 19. Because the liquid flow channel 110 is provided in this embodiment, the flushing water discharged from the liquid flow channel 110 flows in the same direction as the nutrient solution discharged from the first connection hole 14. Consequently, the flow direction of the flushing water is changed by the liquid flow channel 110, and the flushing water does not flush in the opposite direction of the nutrient solution at the first connection hole 14, thereby ensuring that the flushing water does not flow back into the nutrient solution pump tube.

[0051] The end of the flushing branch pipe 2 is provided with a second connecting hole 22 that can be communicated with a flushing pump pipe or a cleaning syringe. The second connecting hole 22 is set as an internal threaded hole, which is convenient for connecting with the flushing pump pipe or the cleaning syringe.

[0052] The flushing branch pipe 2 is provided with a second connecting piece 24 and a second plug 23 fixed to the second connecting piece 24. The second plug 23 is used to block the second connecting hole 22. When the flushing branch pipe 2 is not in use, the second plug 23 can be sealed to the second connecting hole 22, thereby preventing external debris from contaminating the flushing water chamber 25.

[0053] The use process of the present invention is as follows:

[0054] Connect the end cap 12 of the delivery main pipe 1 to the nutrient solution pump pipe, connect the connector 13 of the delivery main pipe 1 to the feeding pipe, connect the flushing branch pipe 2 to the flushing pump pipe, and use this device as an intermediate connection transition piece between the nutrient pump and the feeding pipe.

[0055] The nutrient pump pumps the nutrient solution into the nutrient solution delivery chamber 111 of the delivery main pipe 1, and then the nutrient solution fills the entire nutrient solution delivery chamber 111. At this time, the valve 21 is in a closed state, so the nutrient solution will not flow back into the flushing pump pipe.

[0056] Every two hours, the feeding tube and the main delivery pipe 1 need to be flushed. Open the valve 21, the flushing pump starts, and the flushing pump delivers flushing water to the flushing branch pipe 2. The flushing water then enters the liquid flow cavity 19, and then the flushing water enters the liquid flow cavity 19 through the liquid flow channel 110. Because the flushing water is discharged from the end cover, the flushing water can flush the entire nutrient solution delivery cavity 111, ensuring that the nutrient solution delivery cavity 111 can be completely flushed, thereby avoiding the problem of part of the nutrient solution delivery cavity 111 not being able to be flushed and causing cavity contamination. In addition, the main delivery pipe 1 and the flushing branch pipe 2 in the present invention supply liquid separately, and the two are not affected. There will also be no problem in the prior art where the single-cavity nutrient pump pipe joint needs to be frequently connected to the flushing branch pipe to cause the joint to become loose, thereby avoiding the problems of bed sheet contamination and nutrient solution contamination.

[0057] Furthermore, when flushing with flushing water, the present invention can detect the liquid pressure within the nutrient solution delivery chamber 111 in real time via pressure sensor 3. Excessive or insufficient flushing water pressure will not be conducive to flushing the feeding tube. If the flushing water pressure is too high, the controller controls the valve 21 to open slightly, thereby reducing the flow rate of flushing water flowing into the nutrient solution delivery chamber 111. If the flushing water pressure is too low, the controller controls the valve 21 to open slightly, thereby increasing the flow rate of flushing water flowing into the nutrient solution delivery chamber 111.

[0058] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications derived therefrom remain within the scope of protection of the present invention.

Claims

1. Double-chamber nutrition pump pipe joint, characterized in that: include: A delivery main pipe (1), the delivery main pipe (1) comprising an inner cavity wall, the inner cavity wall being connected vertically and enclosing a nutrient solution delivery cavity (111); the delivery main pipe (1) further comprising an outer cavity wall, the outer cavity wall being sleeved on the outside of the inner cavity wall, the inner cavity wall and the outer cavity wall enclosing a liquid flow cavity (19); the lower end of the outer cavity wall being sealedly connected to the inner cavity wall, and the upper end of the outer cavity wall being open, so that the liquid flow cavity (19) is suitable for bypassing the upper end of the inner cavity wall and communicating with the nutrient solution delivery cavity (111); A connector (13) connected to the lower end of the inner cavity wall and adapted to be connected to a feeding tube; An end cap (12) is connected to the upper end of the outer cavity wall and is provided with a first connection hole (14) connected to the nutrient pump and the nutrient solution delivery cavity (111); A flushing branch pipe (2) is provided on the outer wall of the main delivery pipe (1), and is provided with a flushing water cavity (25) in communication with the liquid flow cavity (19); flushing water introduced into the flushing branch pipe (2) enters the nutrient solution delivery cavity (111) through the liquid flow cavity (19) and cleans the nutrient solution delivery cavity (111); a second connecting hole (22) capable of being connected to a flushing pump pipe or a cleaning syringe is provided at the end of the flushing branch pipe (2); A valve (21) is provided on the flushing branch pipe (2) and is capable of controlling the on-off and flow rate of the flushing branch pipe; a controlled end of the valve (21) is connected to an output end of a controller; A protrusion (18) located in the nutrient solution delivery cavity (111) is provided downwardly at the bottom end of the end cap (12), and a through hole connected to the first connection hole (14) is provided on the protrusion (18), and a one-way valve (112) is provided in the through hole; a liquid flow channel (110) connecting the nutrient solution delivery cavity (111) and the liquid flow cavity (19) is formed between the outer wall of the protrusion (18) and the inner wall of the delivery main pipe (1), and the flow direction of the flushing water discharged from the liquid flow channel (110) is the same as the flow direction of the nutrient solution discharged from the first connection hole (14).

2. The dual-chamber nutrition pump pipe joint according to claim 1, characterized in that: The first connecting hole (14) is configured as a threaded hole.

3. The dual-chamber nutrition pump pipe joint according to claim 1, characterized in that: The end cover (12) is provided with a first connecting piece (16) and a first plug (15) fixed to the first connecting piece (16), and the first plug (15) is used to seal the first connecting hole (14).

4. The dual-chamber nutrition pump pipe joint according to claim 1, characterized in that: The flushing branch pipe (2) is provided with a second connecting piece (24) and a second plug (23) fixed to the second connecting piece (24), and the second plug (23) is used to seal the second connecting hole (22).

5. The dual-chamber nutrition pump pipe joint according to claim 1, characterized in that: The main delivery pipe (1) and the flushing branch pipe (2) are arranged in a Y shape.

6. The dual-chamber nutrition pump pipe joint according to claim 1, characterized in that: A plurality of pressure sensors (3) are sequentially arranged on the inner wall of the delivery main pipe (1) from top to bottom, and the output end of the pressure sensor (3) is connected to the input end of the controller; the pressure sensor (3) is used to detect the liquid pressure inside the nutrient solution delivery chamber (111) and feed back the detection information to the controller.

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