Connecting joint of nasogastric tube

Abstract

The connector comprises a liquid inlet section, a middle section and a liquid outlet section, the middle section is provided with a telescopic bag body and a tee joint, the two ends of the telescopic bag body are connected with the liquid inlet section and the tee joint respectively, and the telescopic bag body is provided with a first valve body and a second valve body respectively. The tee joint is provided with three ports which are connected with the second valve body, the liquid outlet section and the fixing plate hook respectively. According to the design, the gastric juice pumping operation before feeding and the tube flushing operation after feeding are simplified, and the problem of nasogastric tube blockage is effectively prevented and solved. The movable ring of the valve body is rotationally connected in a damping mode, the flow adjusting function is provided, and meanwhile the operation process is simplified through mark indication. The overall structure is beneficial to rapid mounting and dismounting, and the safety and practicability of the medical instrument are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a connecting joint for a nasogastric tube. Background Art

[0002] In recent years, with the development of medical technology, nasogastric tubes have been used more and more widely in clinical practice. Nasogastric tubes are mainly used for patients who cannot eat independently. They are inserted into the stomach through the nasal cavity to achieve functions such as feeding, drug administration or extraction of gastric contents. However, there are some inconveniences in the use of existing nasogastric tubes, especially for the problem of nasogastric tube blockage:

[0003] Traditional nasogastric tubes require gastric fluid to be withdrawn before feeding. After feeding, it is recommended to flush the tube with 20 to 30 mL of warm water pulse pressure. Solid drugs should be fully ground and dissolved, and the infusion rate of nasogastric feeding fluid should be gradually increased to prevent tube blockage. When blockage has occurred, recanalization is usually used to treat it, that is, a 5 mL syringe is used to extract 5% sodium bicarbonate solution and connect the tee. The other end of the tee is connected to a 20 mL empty syringe and the tube cavity is aspirated. The tee is closed, and negative pressure is generated in the tube cavity. The tee is connected to one end of sodium bicarbonate to use negative pressure to absorb the drug solution. The above operations are relatively cumbersome, which is not conducive to medical staff to complete the operation quickly and accurately, and increases the workload.

[0004] Therefore, there is an urgent need for a new type of nasogastric tube connection connector, which can facilitate medical staff to solve the problem of nasogastric tube blockage and improve the efficiency and safety of clinical care. Utility Model Content

[0005] The purpose of the utility model is to overcome the above-mentioned deficiencies in the prior art and to provide a connecting joint for a nasogastric tube which improves clinical nursing efficiency while ensuring safety and convenience of operation.

[0006] The technical solution adopted by the utility model to solve the above problems is: a connecting joint of a nasogastric tube, comprising a liquid inlet section, a middle section and a liquid outlet section;

[0007] The middle section includes a telescopic sac and a tee, one end of the telescopic sac is connected to the liquid inlet section and is provided with a first valve body, and the other end of the telescopic sac is connected to the tee and is provided with a second valve body;

[0008] The three-way valve is provided with a first port, a second port arranged opposite to the first port, and a third port perpendicular to the center axis of the first port and the second port, wherein the first port is connected to the second valve body, and the second port is connected to the liquid outlet section.

[0009] Preferably: the first valve body and the second valve body both include a fixed ring, a movable ring and an opening and closing component;

[0010] The fixed ring is connected and fixed to the middle section, and is provided with three groups of opening and closing components that are evenly distributed in the circumferential direction; a gear ring is circumferentially provided on the inner wall of the movable ring; the opening and closing components include a gear shaft, and the gears provided on the gear shaft are meshed and matched with the gear ring. One end of the gear shaft is rotatably connected to the inner wall of the fixed ring, and the other end of the gear shaft is connected and fixed to a swing rod, and a baffle is provided at the end of the swing rod away from the gear, and the baffle is a one-third circle contour.

[0011] Preferably, four groups of shifting blocks are arranged on the outer side of the movable ring, and the four groups of shifting blocks are evenly distributed in the circumferential direction.

[0012] Preferably: the two ends of the telescopic sac are respectively provided with an internal thread end and an external thread end, and the internal thread end of the telescopic sac is connected and adapted with the external thread liquid inlet of the liquid inlet section; the first port and the second port of the tee are both provided with internal threads; the liquid outlet section is provided with external threads;

[0013] The first port / the second port of the tee is connected and adapted to any combination of the external thread of the liquid outlet section / the external thread end of the bellows body.

[0014] Preferably: the outer wall surface of the tee opposite to the third port is provided with a fixing plate, and the fixing plate is provided with a hook.

[0015] Preferably, the first valve body and the second valve body are both driven by the movable ring rotating counterclockwise to open and rotating clockwise to close.

[0016] Preferably, the movable rings of the first valve body and the second valve body are provided with arrow marks, the rotation direction toward opening is marked with letter marks "On", and the rotation direction toward closing is marked with letter marks "Off".

[0017] Preferably, the movable ring and the fixed ring are connected in a damping rotation manner.

[0018] Compared with the prior art, the utility model has the following advantages and effects:

[0019] The utility model adopts the design of telescopic capsule, so that after feeding, warm water pulse pressure can be used to flush the tube, effectively preventing nasogastric tube blockage. When nasogastric tube blockage is inevitable, the telescopic capsule can be expanded and contracted through the coordinated opening and closing of the first valve body and the second valve body to achieve positive pressure or negative pressure dredging operation, simplifying the operation process of clearing the tube, facilitating medical staff to solve the problem of nasogastric tube blockage, and improving the efficiency and safety of clinical nursing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a connecting joint of a nasogastric tube in an embodiment of the utility model.

[0021] Figure 2It is a schematic diagram of the structure explosion of a connection joint of a nasogastric tube in an embodiment of the utility model.

[0022] Figure 3 It is a schematic diagram of the internal structure of the first valve body / second valve body of an embodiment of the utility model.

[0023] Figure 4 It is a schematic diagram of the internal structure of the movable ring of the embodiment of the utility model.

[0024] Figure numbers: liquid inlet section 1, middle section 2, liquid outlet section 3, telescopic bladder 4, first valve body 41, internal thread end 411, second valve body 42, external thread end 421, tee 5, first port 51, second port 52, third port 53, hook 54, fixed ring 6, movable ring 7, gear ring 71, shift block 72, arrow mark 73, letter mark 74, opening and closing component 8, gear shaft 81, rocker arm 82, baffle 83. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0026] See also Figure 1 - Figure 4 In this embodiment, a nasogastric tube connection joint is provided, which is specifically used to provide a safer, more reliable and easier to operate nasogastric tube feeding system. The design of the connection joint allows medical staff to quickly and accurately control the flow rate of nasogastric feeding fluid, and also facilitates cleaning of the nasogastric tube after feeding to prevent blockage. Specifically, it includes: a liquid inlet section 1, a middle section 2 and a liquid outlet section 3;

[0027] The middle section 2 includes a telescopic sac 4 and a tee 5. One end of the telescopic sac 4 is connected to the liquid inlet section 1 and is provided with a first valve body 41. The other end of the telescopic sac 4 is connected to the tee 5 and is provided with a second valve body 42.

[0028] The tee 5 is provided with a first port 51, a second port 52 arranged opposite to the first port 51, and a third port 53 perpendicular to the center axis of the first port 51 and the second port 52, wherein the first port 51 is connected to the second valve body 42, and the second port 52 is connected to the liquid outlet section 3.

[0029] Specifically, in this embodiment, the patient needs to be fed through a nasogastric tube. The medical staff connects the liquid inlet section 1 of the connector to the nasogastric liquid bag, and the liquid outlet section 3 of the connector to the nasogastric tube, and the nasogastric tube is inserted into the stomach through the nasal cavity to achieve feeding. Before feeding, gastric fluid needs to be withdrawn. The specific operation is: squeeze the telescopic bladder 4 (the telescopic bladder 4 is elastic and can recover by itself), discharge the gas in the telescopic bladder 4 (at this time, the connector is not yet connected to the nasogastric liquid), keep the telescopic bladder 4 squeezed, and at the same time close the first valve body 41, open the second valve body 42, and then release the telescopic bladder 4, so that the gastric fluid is withdrawn through the nasogastric tube, completing the pre-feeding operation.

[0030] Next, the first valve body 41 is opened, and the liquid inlet section 1 introduces the nasogastric feeding liquid. In this embodiment, the connection between the telescopic bladder 4 and the first port 51 of the three-way 5 is taken as an example (the first port 51 and the second port 52 are symmetrical structures, so the front and back swap does not affect the realization of the function in this embodiment), and then the second port 52 of the three-way 5 is connected to the nasogastric tube, and the nasogastric feeding liquid is finally delivered to the stomach to realize the feeding process. The above operation process is simple and convenient, and can be completed quickly and accurately by medical staff, reducing the workload.

[0031] In this embodiment, the first valve body 41 and the second valve body 42 both include a fixed ring 6, a movable ring 7 and an opening and closing component 8;

[0032] The fixed ring 6 is connected and fixed to the middle section 2, and the fixed ring 6 is provided with three groups of opening and closing parts 8 that are evenly distributed in the circumferential direction; the inner wall of the movable ring 7 is provided with a gear ring 71 in the circumferential direction; the opening and closing part 8 includes a gear shaft 81, and the gear provided on the gear shaft 81 is meshed and matched with the gear ring 71, one end of the gear shaft 81 is rotatably connected to the inner wall of the fixed ring 6, and the other end of the gear shaft 81 is connected and fixed with a swing rod 82, and the end of the swing rod 82 away from the gear is provided with a baffle 83, and the baffle 83 is a one-third circle profile. The movable ring 7 of this embodiment rotates relative to the fixed ring 6, and the gear ring 71 on the inner wall of the movable ring 7 is meshed with the gear of the opening and closing part 8. The meshing rotation of the gear causes the swing rod 82 to swing, driving the baffle 83 to move, and the mouth of the telescopic capsule 4 is blocked. Through the first valve body 41 and the second valve body 42, the liquid conduction / blocking of the two ends of the telescopic capsule 4 can be achieved, and the resistance adjustment (by rotating the movable ring 7 to different angles, the blocking ratio of the baffle 83 to the through hole of the fixed ring 6 of the telescopic capsule 4) can be controlled.

[0033] Four groups of dial blocks 72 are arranged on the outside of the movable ring 7, and the four groups of dial blocks 72 are evenly distributed circumferentially. In the process of adjusting the first valve body 41 and the second valve body 42, the medical staff only needs to dial the movable ring 7 through the dial block 72. In addition, the dial block 72 also has the effect of conveniently pressing the first valve body 41 and the second valve body 42, and the specific method is as follows: to prevent the nasogastric tube from being blocked, after the feeding is completed, 20 to 30 mL of warm water pulse pressure flushing is used (open the three-way 5, the first valve body 41 and the second valve body 42, and inject 20 to 30 mL of warm water at the third port 53 of the three-way 5, and the warm water flows into the telescopic bladder 4, and the telescopic bladder 4 expands. Close the first valve body 41, press the wave plate on the outside of the first valve body 41 and the second valve body 42, so that the telescopic bladder 4 is compressed, and the warm water is squeezed and discharged to the nasogastric tube connected to the three-way 5 and finally enters the patient's stomach).

[0034] The solid medicine is fully ground and dissolved, and the nasogastric fluid infusion speed is gradually increased to prevent the blockage of the pipeline (nasogastric tube). The specific method is: during the feeding process through the nasogastric tube, the medical staff finds the tube blockage phenomenon (excluding the displacement and distortion of the catheter, the increased resistance in the tube cavity or the blockage, and the catheter blockage is considered), close the second valve body 42, and keep the first valve body 41 open. Continue to inject nasogastric feeding fluid from the liquid inlet section 1, so that the telescopic capsule 4 of the middle section 2 is filled and expanded, then close the first valve body 41, open the second valve body 42, press the first valve body 41 and the second valve body 42 slider 72, the distance between the first valve body 41 and the second valve body 42 is reduced, the telescopic capsule 4 is compressed, the nasogastric feeding fluid is quickly discharged, and the blockage of the nasogastric tube is dispersed to achieve the effect of dredging. After dredging, the second valve body 42 needs to be quickly closed, the first valve body 41 needs to be opened, and the second valve body 42 needs to be opened when the telescopic capsule 4 returns to its initial size (without expansion or contraction recovery force) to continue feeding.

[0035] In addition, the dredging effect can also be achieved by means of negative pressure. Specifically, the first valve body 41 is closed, the second valve body 42 remains open, a 5 mL syringe draws 5% sodium bicarbonate solution and connects to the third port 53 of the tee 5, the first valve body 41 and the second valve body 42 are used to stretch the telescopic capsule 4, the telescopic capsule 4 expands after being stretched, and a negative pressure is generated in the cavity of the telescopic capsule 4, so that the liquid medicine flows back. The pipeline can be reopened without the need to configure an empty syringe.

[0036] The two ends of the telescopic sac 4 are respectively provided with an internal thread end 411 and an external thread end 421, and the internal thread end 411 of the telescopic sac 4 is connected and adapted to the external thread liquid inlet of the liquid inlet section 1; the first port 51 and the second port 52 of the tee 5 are both provided with internal threads; the liquid outlet section 3 is provided with external threads; the liquid inlet section 1, the middle section 2 (the telescopic sac 4, the tee 5), and the liquid outlet section 3 are connected in sequence through a threaded structure, the external thread structure of the liquid inlet section 1 is connected to the internal thread end 411 of the telescopic sac 4, the external thread end 421 of the telescopic sac 4 is connected to the first port 51 / the second port 52 of the tee 5, and the second port 52 / the first port 51 of the tee 5 is connected to the external thread structure of the liquid outlet section 3, which is convenient for medical staff to quickly install and disassemble, avoid reverse installation or wrong installation, and is conducive to the maintenance and cleaning of the equipment.

[0037] The first port 51 / the second port 52 of the tee 5 is connected and adapted to any combination of the external thread of the liquid outlet section 3 / the external thread end 421 of the bellows 4. In this embodiment, the first port 51 and the second port 52 of the tee 5 are arranged opposite to each other, have the same structure and function, and are only distinguished by the installation direction. During assembly, they can be reversed without affecting the overall function of the joint.

[0038] The outer wall surface of the tee 5 opposite to the third port 53 is provided with a fixing plate, and the fixing plate is provided with a hook 54. The hook 54 can fix the connector in a specific position to avoid accidental touching by patients or other personnel in a medical environment, thereby reducing medical risks that may be caused by misoperation.

[0039] The first valve body 41 and the second valve body 42 are both driven by the movable ring 7 to rotate counterclockwise to open and clockwise to close. When in use, medical staff can use both hands to operate the first valve body 41 and the second valve body 42 at the same time, similar to twisting a towel. The different rotation directions of the left and right hands can realize the synchronous opening or closing of the first valve body 41 and the second valve body 42, which conforms to ergonomics and reduces the possibility of operation errors.

[0040] The movable ring 7 of the first valve body 41 and the second valve body 42 is provided with an arrow mark 73, and the rotation direction toward opening is marked with a letter mark 74 "On", and the rotation direction toward closing is marked with a letter mark 74 "Off". Through the indications of the arrow mark 73 and the letter marks "On" and "Off" 74, the user can intuitively identify the current state and operation direction of the valve body, thereby improving the convenience of use. Clear markings and operation directions can reduce safety risks caused by misoperation, especially in emergency situations, where fast and accurate operation is particularly important. The use of English marks "On" and "Off" makes the product meet international standards and is convenient for global promotion and use.

[0041] The movable ring 7 and the fixed ring 6 are connected in a damped rotation manner, and a rubber pad is filled between the fixed ring 6 and the movable ring 7 to achieve a damped rotation effect, which can prevent the movable ring 7 from rotating easily due to accidental touch, thereby avoiding potential risks caused by misoperation. At the same time, it enables medical staff to more accurately control the rotation position of the movable ring 7, so that the baffle 83 of the first valve body 41 and the second valve body 42 remains in a fixed position, maintaining the flow cross-section of the through hole of the fixed ring 6 of the telescopic bag body 4, and indirectly realizing the adjustment of the flow rate of nasogastric feeding fluid.

[0042] The above contents described in this specification are merely examples of the present utility model. Those skilled in the art of the present utility model may make various modifications or additions to the specific embodiments described, or replace them in similar ways, as long as they do not deviate from the contents of the present utility model specification or exceed the scope defined in the claims, they shall all fall within the protection scope of the present utility model.

Claims

1. A connecting joint for a nasogastric tube, characterized in that: It includes a liquid inlet section, a middle section and a liquid outlet section; The middle section includes a telescopic sac and a tee, one end of the telescopic sac is connected to the liquid inlet section and is provided with a first valve body. The other end of the telescopic bag is connected to the tee and is provided with a second valve body; The three-way valve is provided with a first port, a second port arranged opposite to the first port, and a third port perpendicular to the center axis of the first port and the second port, wherein the first port is connected to the second valve body, and the second port is connected to the liquid outlet section.

2. A nasogastric tube connection connector according to claim 1, characterized in that: The first valve body and the second valve body both include a fixed ring, a movable ring and an opening and closing component; The fixed ring is connected and fixed to the middle section, and is provided with three groups of opening and closing components that are evenly distributed in the circumferential direction; a gear ring is circumferentially provided on the inner wall of the movable ring; the opening and closing components include a gear shaft, and the gears provided on the gear shaft are meshed and matched with the gear ring. One end of the gear shaft is rotatably connected to the inner wall of the fixed ring, and the other end of the gear shaft is connected and fixed to a swing rod, and a baffle is provided at the end of the swing rod away from the gear, and the baffle is a one-third circle contour.

3. A nasogastric tube connector according to claim 2, characterized in that: Four groups of shifting blocks are arranged on the outer side of the movable ring, and the four groups of shifting blocks are evenly distributed in the circumferential direction.

4. A nasogastric tube connection connector according to claim 1, characterized in that: The two ends of the telescopic sac are respectively provided with an internal thread end and an external thread end, and the internal thread end of the telescopic sac is connected and adapted with the external thread liquid inlet of the liquid inlet section; the first port and the second port of the tee are both provided with internal threads; the liquid outlet section is provided with external threads; The first port / the second port of the tee is connected and adapted to any combination of the external thread of the liquid outlet section / the external thread end of the bellows body.

5. A nasogastric tube connection connector according to claim 4, characterized in that: The outer wall surface of the tee opposite to the third port is provided with a fixing plate, and the fixing plate is provided with a hook.

6. A nasogastric tube connection joint according to claim 1, characterized in that: The first valve body and the second valve body are both driven in a manner that the movable ring rotates counterclockwise to open and rotates clockwise to close.

7. A nasogastric tube connection connector according to claim 6, characterized in that: The movable rings of the first valve body and the second valve body are provided with arrow marks, the opening rotation direction is marked with letter marks "On", and the closing rotation direction is marked with letter marks "Off".

8. A nasogastric tube connection connector according to claim 7, characterized in that: The movable ring and the fixed ring are connected in a damping rotation manner.

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