Liquid diet feeding device

Abstract

The utility model relates to the technical field of medical care instruments, in particular to a liquid diet feeding device which comprises a feeding cylinder, a connecting nozzle is arranged at the bottom end of the feeding cylinder, a piston is movably mounted in the feeding cylinder, an adjusting screw is arranged at the top end of the piston, and a feeding port is formed in the feeding cylinder. A positioning end cover is detachably and fixedly mounted at the top end of the feeding barrel, an adjusting disc is arranged at the top of the positioning end cover, and two sets of symmetrically-distributed clutch mechanisms are arranged at the top of the positioning end cover. According to the liquid food feeding device, the adjusting screw rod matched with the piston is arranged, the position of the adjusting screw rod is limited through the positioning end cover and the clamping tile, the adjusting screw rod is driven to rotate through the adjusting hand wheel, the piston can be pushed to move in the feeding barrel, and therefore liquid food is squeezed into the stomach of a patient along the connecting nozzle; the piston is pushed to move in a threaded mode to extrude the liquid food, the extrusion speed can be conveniently controlled, and discomfort of a patient is avoided.

Description

Technical Field

[0001] This utility model relates to the field of medical and nursing device technology, and in particular to a liquid feeding device. Background Technology

[0002] Critically ill patients are often unable to eat independently during treatment and require intravenous nutrition or liquid feeding by medical staff. Currently, most common feeding devices are of the squeeze type.

[0003] A public announcement (CN214343470U) discloses a liquid food feeder for intensive care unit care. This technology includes "a cup body, a piston slidably mounted on the inner end of the cup body, a piston rod fixedly mounted on the middle of the piston's top, a cup seat threadedly mounted on the bottom of the cup body, a battery and a PLC controller fixedly mounted on the inner end of the cup seat, an annular cooling plate and an annular heating plate fixedly mounted on the top of the cup seat, and a display screen and a speaker fixedly mounted on the outer wall of the cup seat." A temperature sensor inside the detection tube can monitor the temperature of the liquid food passing through the tube in real time. If the temperature is too high or too low, a warning can be issued via the speaker to prevent excessively hot or cold liquid food from entering the patient's mouth.

[0004] However, in the above-mentioned approach, liquid food is still delivered to the patient by manual squeezing. However, it is often difficult to control the squeezing force and the feeding speed during the squeezing process, which can easily lead to too much food being squeezed into the patient's stomach at once, causing discomfort. In addition, the gastric tube or nasogastric tube used for liquid feeding is usually thin, and medical staff need to continuously apply a large amount of squeezing force to the feeding device during liquid feeding, which is labor-intensive.

[0005] To address the aforementioned problems, this application proposes a liquid feeding device. Utility Model Content

[0006] To address the problems mentioned in the background section, this invention provides a liquid feeding device that facilitates reasonable control of the liquid feeding speed while reducing labor intensity.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a liquid food feeding device, comprising a feeding cylinder, wherein a connecting nozzle is provided at the bottom end of the feeding cylinder, characterized in that: a piston is movably installed inside the feeding cylinder, and an adjusting screw is provided at the top end of the piston; a positioning end cover is detachably fixedly installed at the top end of the feeding cylinder, and an adjusting disc is provided at the top of the positioning end cover; two sets of symmetrically distributed clutch mechanisms are provided at the top of the positioning end cover, and a clamping plate is provided at one end of each set of clutch mechanisms near the middle of the positioning end cover; the clamping plate can be threadedly connected to the adjusting screw.

[0008] Preferably, a connecting seat is fixedly installed in the middle of the piston near the adjusting screw end. The adjusting screw is movably connected to the piston through the connecting seat. An adjusting handwheel is fixedly connected to the end of the adjusting screw away from the piston. By adjusting the handwheel, the adjusting screw can be rotated, which can push the piston to move inside the feeding cylinder, so as to squeeze the liquid food inside the feeding cylinder to feed the patient.

[0009] Preferably, the positioning end cap is threaded to the top of the feeding cylinder, and a through hole is provided in the middle of the positioning end cap to cooperate with the adjusting screw. The diameter of the through hole is larger than the diameter of the adjusting screw. A through hole for the adjusting screw is provided on the positioning end cap to ensure that the adjusting screw can slide freely in the middle of the positioning end cap.

[0010] Preferably, the adjusting disc is threaded to the top of the positioning end cover, and a positioning tube that cooperates with the adjusting screw is provided in the middle of the top of the adjusting disc. The inner diameter of the positioning tube is the same as the diameter of the adjusting screw. When the clamping pad releases the restriction on the adjusting screw, the positioning tube can provide auxiliary restriction on the adjusting screw to ensure the stability of the adjusting screw when it pulls the piston.

[0011] Preferably, the bottom of the adjusting disc has a mounting cavity that cooperates with the clutch mechanism, and the top of the mounting cavity and the top of the clamping pads have mutually cooperating inclined surfaces. Rotating the adjusting disc to move closer to the positioning end cover, the adjusting disc can push the two sets of clamping pads to the center through the inclined surfaces, thereby making the two sets of clamping pads threadedly connected to the adjusting screw.

[0012] Preferably, the clamping pads are semi-circular, and the two sets of clamping pads can be combined into a complete ring. The inner rings of the two sets of clamping pads are provided with threads that cooperate with each other and can match the adjusting screw. After the two sets of clamping pads open, the restriction on the adjusting screw is released, and the restriction on the adjusting screw is released, so that the piston can be pulled by the adjusting screw to move quickly inside the feeding cylinder.

[0013] Preferably, the clutch mechanism includes a fixed bracket, a guide rod, and a compression spring. The fixed bracket is fixedly installed on the top of the positioning end cover. The guide rod is movably installed on the fixed bracket, and one end of the guide rod is fixedly connected to the clamping pad. The compression spring is movably fitted outside the guide rod, and the compression spring is located on the side of the fixed bracket away from the clamping pad. The axial cross-sectional shape of the guide rod is hexagonal. When the adjusting disc releases the restriction on the clamping pad, the compression spring applies a spring force to the guide rod, pushing the guide rod to move the clamping pad outward, thereby releasing the restriction of the clamping pad on the adjusting screw.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This liquid feeding device features an adjusting screw that works in conjunction with a piston. The position of the adjusting screw is restricted by a positioning end cap and clamping pads. By adjusting the handwheel to rotate the adjusting screw, the piston can be moved inside the feeding cylinder, thereby squeezing the liquid food into the patient's stomach through the connecting nozzle. The use of a threaded piston to move and squeeze the liquid food makes it easy to control the squeezing speed, avoids causing discomfort to the patient, and solves the problem of high labor intensity caused by applying pressure to the piston for a long time in the past.

[0016] 2. This liquid feeding device features two sets of combined clamping plates. Rotating the adjusting disc compresses the two sets of clamping plates, connecting them to the adjusting screw via a threaded connection. This restricts the adjusting screw, facilitating piston adjustment via the threaded connection. Reversing the rotation of the adjusting disc releases the restriction on the clamping plates, and the compression spring applies elastic force to the guide rod, pulling the clamping plates outward. This releases the restriction on the adjusting screw, allowing the piston to move quickly within the feeding cylinder via the adjusting screw, thus rapidly absorbing liquid food and water. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall assembly of this utility model;

[0019] Figure 2 This is a structural schematic diagram of the present invention in frontal cross-section;

[0020] Figure 3 This is a schematic diagram of the structure of one end of the positioning end cap of this utility model;

[0021] Figure 4 This is a schematic diagram of the connection between the clamping bearing and the clutch mechanism of this utility model;

[0022] Figure 5 This is a structural schematic diagram of the cross-section of the positioning end cap and the adjusting plate of this utility model;

[0023] Figure 6 This is a schematic diagram of the connection position between the piston and the adjusting screw of this utility model.

[0024] In the picture:

[0025] 1. Feeding cylinder; 2. Connecting nozzle; 3. Piston; 4. Adjusting screw; 5. Adjusting handwheel; 6. Positioning end cap; 7. Clamping bearing; 8. Clutch mechanism; 81. Fixed bracket; 82. Guide rod; 83. Compression spring; 9. Adjusting disc; 10. Connecting seat. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] like Figure 1 As shown: A liquid food feeding device includes a feeding cylinder 1, and a connecting nozzle 2 is provided at the bottom end of the feeding cylinder 1.

[0029] In this implementation plan: A public disclosure (announcement) number: CN214343470U discloses a liquid food feeding device for intensive care unit care. To address the existing problems in this prior art, as disclosed in the background section above, "In the above solution, liquid food is still manually squeezed into the patient's body. However, during the squeezing process, it is often difficult to control the squeezing force and the feeding speed, which can easily lead to too much food being squeezed into the patient's stomach at once, causing discomfort. In addition, the gastric tube or nasogastric tube used for liquid feeding is usually quite thin, requiring medical personnel to continuously apply significant squeezing force to the feeding device, resulting in high labor intensity." In practical terms, this problem is clearly present and difficult to solve. Therefore, to solve this technical problem, this application incorporates an adjusting screw 4, a clamping bearing 7, and a clutch mechanism 8.

[0030] Furthermore:

[0031] like Figures 1 to 6 As shown:

[0032] In summary: A piston 3 is movably installed inside the feeding cylinder 1, and an adjusting screw 4 is located at the top of the piston 3. A positioning end cover 6 is detachably fixed to the top of the feeding cylinder 1, and an adjusting disc 9 is located on the top of the positioning end cover 6. Rotating the adjusting disc 9 compresses two sets of clamping plates 7, causing the two sets of clamping plates 7 to be threadedly connected to the adjusting screw 4. This restricts the adjusting screw 4, facilitating adjustment of the piston 3 via the threaded connection. Two symmetrically distributed clutch mechanisms are located on the top of the positioning end cover 6. 8. When the adjusting plate 9 releases the restriction on the clamping plate 7, the clutch mechanism 8 applies an outward thrust to the clamping plate 7, which can disconnect the clamping plate 7 from the adjusting screw 4. Both sets of clutch mechanisms 8 are provided with clamping plates 7 at the end near the middle of the positioning end cover 6. The clamping plates 7 can be threadedly connected to the adjusting screw 4. By setting two sets of combined clamping plates 7, the two sets of clamping plates 7 are combined and threadedly connected to the adjusting screw 4. The piston 3 can be moved by the thread to squeeze the liquid food, which is convenient for controlling the squeezing speed.

[0033] In an optional embodiment: A connecting seat 10 is fixedly installed at the middle of the piston 3 near the adjusting screw 4. The connecting seat 10 restricts the position of the adjusting screw 4, ensuring a stable connection between the adjusting screw 4 and the piston 3, and allowing the adjusting screw 4 to rotate freely. This ensures that the position of the piston 3 can be adjusted when the adjusting screw 4 rotates. The adjusting screw 4 is movably connected to the piston 3 through the connecting seat 10. An adjusting handwheel 5 is fixedly connected to the end of the adjusting screw 4 away from the piston 3, making it easy to drive the adjusting screw 4 to rotate through the adjusting handwheel 5, thereby reducing the difficulty of adjusting the piston 3 through the adjusting screw 4.

[0034] In an optional embodiment: the positioning end cap 6 is threaded to the top of the feeding cylinder 1 to ensure a stable connection between the positioning end cap 6 and the feeding cylinder 1, thereby ensuring that the positioning end cap 6 can restrict the position of the clamping pad 7 and the adjusting screw 4, while facilitating the disassembly of the positioning end cap 6. A through hole that mates with the adjusting screw 4 is provided in the middle of the positioning end cap 6, and the diameter of the through hole is larger than the diameter of the adjusting screw 4. A through hole for the adjusting screw 4 is provided on the positioning end cap 6 to ensure that the adjusting screw 4 can slide freely in the middle of the positioning end cap 6.

[0035] In an optional embodiment: the adjusting disc 9 is threaded to the top of the positioning end cover 6. Rotating the adjusting disc 9 facilitates the restriction of the position of the clamping pad 7, thereby facilitating the adjustment of the fit between the clamping pad 7 and the adjusting screw 4. A positioning tube that fits with the adjusting screw 4 is provided in the middle of the top of the adjusting disc 9, and the inner diameter of the positioning tube is the same as the diameter of the adjusting screw 4. When the clamping pad 7 releases the restriction on the adjusting screw 4, the positioning tube can provide auxiliary restriction on the adjusting screw 4 to ensure the stability of the adjusting screw 4 when pulling the piston 3.

[0036] In an optional embodiment: the bottom of the adjusting plate 9 is provided with a mounting cavity that cooperates with the clutch mechanism 8. The bottom of the adjusting plate 9 provides a mounting space for the clutch mechanism 8. At the same time, the adjusting plate 9 covers the clutch mechanism 8 to ensure the overall aesthetic appearance of the device. The top of the mounting cavity and the top of the clamping pad 7 are provided with mutually cooperating inclined surfaces. Rotating the adjusting plate 9 to move it closer to the positioning end cover 6, the adjusting plate 9 can push the two sets of clamping pads 7 to move towards the center through the inclined surfaces, thereby combining the two sets of clamping pads 7 into one unit and threadedly connecting it to the adjusting screw 4.

[0037] In an optional embodiment: the clamping pad 7 is semi-annular, and two sets of clamping pads 7 can be combined into a complete annular shape. By setting two sets of combined clamping pads 7, the two sets of clamping pads 7 are threadedly connected to the adjusting screw 4 after combination. The piston 3 can be pushed to move and squeeze the liquid food by means of threads, which makes it easy to control the squeezing speed. The inner rings of the two sets of clamping pads 7 are provided with threads that cooperate with each other and can match the adjusting screw 4. After the two sets of clamping pads 7 open, the restriction on the adjusting screw 4 is released, and the restriction on the adjusting screw 4 by the clamping pads 7 is released, which makes it easy to pull the piston 3 to move quickly inside the feeding cylinder 1 by adjusting the screw 4, so as to quickly complete the suction of liquid food and water.

[0038] In an optional embodiment: the clutch mechanism 8 includes a fixed bracket 81, a guide rod 82, and a compression spring 83. The fixed bracket 81 is fixedly installed on the top of the positioning end cover 6. The guide rod 82 is movably installed on the fixed bracket 81, and one end of the guide rod 82 is fixedly connected to the clamping pad 7. The compression spring 83 is movably fitted outside the guide rod 82, and the compression spring 83 is located on the side of the fixed bracket 81 away from the clamping pad 7. When the adjusting plate 9 releases the restriction on the clamping pad 7, the compression spring 83 applies a spring force to the guide rod 82, pushing the guide rod 82 to move the clamping pad 7 outward, thereby releasing the restriction of the clamping pad 7 on the adjusting screw 4. The axial cross-sectional shape of the guide rod 82 is hexagonal, which restricts the axial rotation of the guide rod 82, thereby ensuring the stability of the clamping pad 7 during operation.

[0039] The working principle and usage process of this utility model: In the initial stage, the bottom end of the adjusting disc 9 does not contact the positioning end cover 6, and the adjusting disc 9 does not restrict the position of the two sets of clamping pads 7. The compression spring 83 applies elastic force to the guide rod 82, pulling the clamping pads 7 to move outward, so that the two sets of clamping pads 7 do not restrict the adjusting screw 4. By adjusting the handwheel 5, the adjusting screw 4 and piston 3 are pushed to move closer to the connecting nozzle 2, and the air inside the feeding cylinder 1 is emptied. By adjusting the handwheel 5, the piston 3 is pulled in the opposite direction, and the liquid food is sucked into the feeding cylinder 1 along the connecting nozzle 2. After the liquid food is sucked out, the connecting nozzle 2 is connected to the patient's gastric tube or nasogastric tube. The adjusting disc 9 is rotated to move closer to the positioning end cover 6, so that the bottom end of the adjusting disc 9 abuts against the top end cover 6. The two sets of clamping pads 7 are squeezed by the adjusting disc 9, causing them to move towards the center. The two sets of clamping pads 7 then close and are threadedly connected to the adjusting screw 4. During the rotation of the adjusting disc 9, the adjusting screw 4 is rotated back and forth in small amplitudes to adjust the relative position of the adjusting screw 4 and the two sets of clamping pads 7, so that the two sets of clamping pads 7 can be smoothly threadedly connected to the adjusting screw 4. After the position of the clamping pads 7 is adjusted, the adjusting handwheel 5 drives the adjusting screw 4 to rotate, pushing the piston 3 to move closer to the connecting nozzle 2. This squeezes the liquid food inside the feeding cylinder 1 into the patient's stomach along the gastric tube or nasogastric tube. The piston 3 is moved by a threaded method to squeeze the liquid food, which makes it easy to control the squeezing speed and does not require applying squeezing force to the piston 3 for a long time.

[0040] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A liquid food feeding device, comprising a feeding cylinder (1), wherein a connecting nozzle (2) is provided at the bottom end of the feeding cylinder (1), characterized in that: The feeding cylinder (1) is equipped with a piston (3) inside, and an adjusting screw (4) is provided at the top of the piston (3). The top of the feeding cylinder (1) is detachably fixed with a positioning end cover (6), and an adjusting plate (9) is provided at the top of the positioning end cover (6). The top of the positioning end cover (6) is provided with two sets of symmetrically distributed clutch mechanisms (8), and each set of clutch mechanisms (8) is provided with a clamping plate (7) at one end near the middle of the positioning end cover (6). The clamping plate (7) can be threadedly connected to the adjusting screw (4).

2. The liquid feeding device according to claim 1, characterized in that: A connecting seat (10) is fixedly installed at the middle of the piston (3) near the adjusting screw (4). The adjusting screw (4) is movably connected to the piston (3) through the connecting seat (10). An adjusting handwheel (5) is fixedly connected at the end of the adjusting screw (4) away from the piston (3).

3. The liquid feeding device according to claim 1, characterized in that: The positioning end cap (6) is threaded to the top of the feeding cylinder (1). The positioning end cap (6) has a through hole in the middle that cooperates with the adjusting screw (4), and the diameter of the through hole is larger than the diameter of the adjusting screw (4).

4. A liquid feeding device according to claim 1, characterized in that: The adjusting disc (9) is threaded to the top of the positioning end cover (6). A positioning tube that cooperates with the adjusting screw (4) is provided at the middle of the top of the adjusting disc (9), and the inner diameter of the positioning tube is the same as the diameter of the adjusting screw (4).

5. A liquid feeding device according to claim 1, characterized in that: The bottom of the adjustment plate (9) is provided with a mounting cavity that cooperates with the clutch mechanism (8), and the top of the mounting cavity and the top of the clamping plate (7) are provided with mutually cooperating inclined surfaces.

6. A liquid feeding device according to claim 1, characterized in that: The clamping pad (7) is semi-circular, and the two sets of clamping pads (7) can be combined into a complete ring. The inner rings of the two sets of clamping pads (7) are provided with threads that cooperate with each other and can match the adjusting screw (4).

7. A liquid feeding device according to claim 1, characterized in that: The clutch mechanism (8) includes a fixed bracket (81), a guide rod (82), and a compression spring (83). The fixed bracket (81) is fixedly installed on the top of the positioning end cover (6). The guide rod (82) is movably installed on the fixed bracket (81), and one end of the guide rod (82) is fixedly connected to the clamping pad (7). The compression spring (83) is movably fitted outside the guide rod (82), and the compression spring (83) is located on the side of the fixed bracket (81) away from the clamping pad (7). The axial cross-sectional shape of the guide rod (82) is hexagonal.

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