Anti-self-adjusting liquid infusion controllable dripping speed infusion apparatus

Abstract

The invention relates to an anti-self-adjusting liquid infusion controllable dripping speed infusion apparatus, which comprises a fixed base clamped on an infusion strap; the flow speed adjusting disc is arranged on the fixed base, and the flow speed adjusting disc can be pulled outwards to rotate and pressed inwards to be buckled and fixed to the fixed base; figures are marked on the flow velocity adjusting disc and correspond to different flow velocities; the middle shaft and the rotating assembly are in threaded connection, the section of the rotating assembly is I-shaped, the middle shaft is arranged in the rotating assembly, and the rotating assembly rotates to drive the middle shaft to move, so that the infusion strap is compressed, and the flow rate is controlled; the flow rate adjusting disc is provided with a first buckle and a second buckle, and when the flow rate adjusting disc is pulled outwards to rotate, the second buckle is buckled with the rotating assembly to drive the rotating assembly to rotate; and when the inner pressure of the flow rate adjusting disc is buckled with the fixed base, the first buckle is buckled and locked with the fixed base. Compared with the prior art, the device has the advantages of accurate flow speed control, misoperation prevention, convenience in operation, efficiency improvement and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, in particular to an anti-self-adjusting fluid-replenishing infusion device with controllable dripping speed. Background Art

[0002] Intravenous infusion is a common treatment option in clinical practice. Infusion strips are an essential link between medication and patient during IV infusion. Controlling the infusion rate is crucial for ensuring patient safety and treatment effectiveness. Despite advancements in technology, nurses still rely on their own calculations to control the infusion drip rate. However, after a successful venipuncture, they will inquire about the patient's medical history and then adjust the regulator on the infusion strip based on the doctor's orders, medications, condition, and the patient's individual circumstances. The regulator flow rate is calculated by checking the time between 15 and 30 seconds to achieve the appropriate infusion drip rate. This process is not only time-consuming and labor-intensive, but also poses the risk of miscalculation. After adjustment, patients are advised not to adjust the infusion rate on their own. However, in practice, some patients lack adequate understanding of the appropriate infusion drip rate for their disease and fail to adhere to this guidance. They blindly adjust the infusion drip rate to the fastest or slowest rate, believing it is best for their health. This, in contrast to following doctor's instructions, poses a safety hazard. This also exposes the drawback of not being able to lock in the current drip rate after adjustment.

[0003] Patent CN202020664249.3 discloses an infusion device that accurately adjusts and controls the drip rate. It relates to the field of medical equipment technology and includes an infusion tube and a positioning block. The infusion tube is inserted into the positioning block and abuts against its inner bottom wall. One end side wall of the positioning block is provided with an adjustment device. The adjustment device includes a mounting block. One end side wall of the mounting block is rotatably connected to one end side wall of the positioning block. An adjustment rod is inserted into one end side wall of the mounting block. One end side wall of the adjustment rod is rotatably connected to a rotating block. One end side wall of the rotating block is fixedly connected to a pressure block. One end side wall of the pressure block is fixedly connected to two sliding rods. The sliding rods pass through the mounting block. One side wall of the mounting block is provided with a fixing device. One end side wall of the positioning block is provided with a heating device. Using a fixing device and an adjustment device, the pressure block is used to squeeze the infusion tube to control the flow rate of the infusion tube, and a fixing sleeve is used to control the fixing and removal of the mounting block. However, the adjustment accuracy is insufficient and it cannot prevent misoperation.

[0004] Patent CN202120684322.8 discloses an infusion alarm that is easy to control the drip rate. In addition to the alarm function, the drip rate can also be intuitively displayed through a liquid detection mechanism and a display screen, improving the accuracy of the drip rate adjustment. The flow of the infusion set can be automatically shut down when the infusion drips out, ensuring the safety of the patient and reducing the workload of medical staff. Its technical points are: including an alarm body, the alarm body is provided with a clamping groove for embedding the infusion catheter, an alarm mechanism, a droplet detection mechanism, a microprocessor, a display screen and a flow cut-off mechanism for cutting off the flow of the liquid medicine. The alarm mechanism adopts one or more combinations of prompt sounds, lights and sending information to a mobile terminal; the alarm body is also provided with a tube cover for being set on the drip tube of the infusion set, and the droplet detection mechanism is arranged in the tube cover; the flow cut-off mechanism is built into the alarm body and can extend into the clamping groove; the alarm mechanism, droplet detection mechanism, display screen and flow cut-off mechanism are all electrically connected to the microprocessor. However, the operation is complicated and the cost is high. Summary of the Invention

[0005] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a self-adjusting infusion device with controllable drip rate, which has precise flow rate control, prevents misoperation, is easy to operate and improves efficiency.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] The present invention provides a self-adjusting infusion device with controllable dripping rate, comprising:

[0008] The fixed base is clamped on the infusion strap;

[0009] A flow rate adjustment disk is provided on the fixed base, and the flow rate adjustment disk can be rotated by pulling outward and fastened with the fixed base by internal pressure; the flow rate adjustment disk is marked with numbers corresponding to different flow rates;

[0010] The central shaft and the rotating assembly are threadedly connected. The cross section of the rotating assembly is I-shaped. The central shaft is arranged in the rotating assembly. The rotation of the rotating assembly can drive the central shaft to move, thereby compressing the infusion strap to control the flow rate;

[0011] The flow rate regulating disk is provided with a first buckle and a second buckle. When the flow rate regulating disk is pulled outward and rotated, the second buckle is engaged with the rotating assembly to drive the rotating assembly to rotate; when the internal pressure of the flow rate regulating disk is engaged with the fixed base, the first buckle is engaged and locked with the fixed base.

[0012] Furthermore, the first buckle is gear-shaped, and a buckle that cooperates with the first buckle is provided on the fixed base.

[0013] Furthermore, the second buckle is gear-shaped, and the rotating assembly is provided with a buckle that cooperates with the second buckle.

[0014] Furthermore, the central axis is made of ABS or silicone material.

[0015] Furthermore, the flow rate regulating disk has a diameter of 2.5 cm to 3.5 cm and a thickness of 0.3 cm to 0.6 cm.

[0016] Furthermore, the fixed base has a diameter of 3.5cm-4.5cm and a thickness of 1cm-1.5cm.

[0017] Furthermore, a red marking line is provided on the outside of the fixed base, which facilitates the operator to select the required number of drops corresponding to the number of drops on the flow rate adjustment disk and is convenient for observation.

[0018] Furthermore, the length of the central axis is 1.5 cm-2.5 cm.

[0019] Furthermore, one end of the rotating assembly is clamped in a limiting groove provided inside the fixed base.

[0020] Furthermore, a non-slip rubber pad is provided in the groove of the fixed base for clamping the infusion strap.

[0021] The flow rate adjustment dial's axis is divided into 100 equal diameters. Every tenth digit is marked with a dividing line and a number, while every fifth digit is marked with a dividing line but not a number. This makes it easier to select the drip rate per minute. For example, the formula for infusion drops is: drops per minute = liquid volume (ml) * drop coefficient / infusion time. The drop coefficient depends on the infusion strap. For gravity-type infusion straps, the drop coefficient is 20 drops / ml. For example, a flow rate of 60 drops per minute is 1.2 mm. Locking the mark at 60 drops per minute ensures that the required inner diameter velocity of the strap per minute for infusion is 1.2 mm. Matching the flow rate to the number of drops.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] (1) Precise flow rate control. Precise control is achieved through the linkage of the threaded central shaft and the I-shaped rotating assembly. The gear-shaped meshing structure of the first clip and the fixed base can be mechanically locked by internal pressure operation after adjustment is completed, effectively preventing flow rate changes caused by accidental touch by the patient.

[0024] (2) Visual adjustment. The flow rate adjustment dial adopts a 100-equal-division scale design, combined with the marking lines on the fixed base, to achieve visual adjustment accurate to the number of drops per minute.

[0025] (3) Anti-misoperation. When rotating by pulling outward, the second buckle engages with the rotating assembly to drive the central axis to move. After locking by internal pressure, the first buckle forms a rigid connection with the fixed base, which physically isolates the adjustment and locking states.

[0026] (4) Easy operation, improved efficiency, and low cost. It can avoid calculation and adjustment, reduce the time required for adjustment, improve efficiency, and the selected materials have the advantage of low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of a self-adjusting infusion device with controllable drip rate;

[0028] Figure 2 A schematic diagram of a flow rate adjustment disk of a self-regulating fluid infusion and controllable drip rate infusion device;

[0029] Figure 3 This is a cross-sectional view of a self-adjusting infusion and drip-rate controllable infusion device (with the flow rate adjustment disc and the fixed base engaged);

[0030] Figure 4 Schematic diagram of the structure of the self-adjusting infusion and controllable drip rate infusion device Figure 1 (When the flow rate regulating disc is pulled out);

[0031] Figure 5 Schematic diagram of the structure of the self-adjusting infusion and controllable drip rate infusion device Figure 2 (When the flow rate regulating disc is pulled out);

[0032] Figure 6 Schematic diagram of the structure of the self-adjusting infusion and controllable drip rate infusion device Figure 3 (When the flow rate regulating disc is pulled out);

[0033] Figure 7 A schematic diagram of the central axis of a self-adjusting fluid infusion and controllable drip rate infusion device.

[0034] Figure numerals: 1-flow rate adjustment disk; 2-fixed base; 3-infusion strap; 4-first buckle; 5-central axis; 6-rotation assembly; 7-second buckle; 8-limiting groove. DETAILED DESCRIPTION

[0035] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Component models, material names, connection structures, control methods, algorithms, and other features not explicitly described in this technical solution are considered common technical features disclosed in the prior art.

[0036] Example 1

[0037] This embodiment provides a self-adjusting infusion device with controllable drip rate. Figure 1-7 As shown, including:

[0038] The fixed base 2 is clamped on the infusion strap 3;

[0039] The flow rate regulating disk 1 is provided on the fixed base 2. The flow rate regulating disk 1 can be rotated by pulling outward and fixed with the fixed base 2 by internal pressure. The flow rate regulating disk 1 is marked with numbers corresponding to different flow rates.

[0040] The central axis 5 and the rotating assembly 6 are threadedly connected. The cross section of the rotating assembly 6 is I-shaped. The central axis 5 is arranged inside the rotating assembly 6. The rotation of the rotating assembly 6 can drive the central axis 5 to move, thereby compressing the infusion strap 3 to control the flow rate;

[0041] like Figure 3 、 4 As shown in Figures 5 and 6, the flow rate regulating disk 1 is provided with a first clip 4 and a second clip 7. When the flow rate regulating disk 1 is pulled outward and rotated, the second clip 7 is engaged with the rotating component 6, driving the rotating component 6 to rotate; when the internal pressure of the flow rate regulating disk 1 is engaged with the fixed base 2, the first clip 4 is engaged and locked with the fixed base 2.

[0042] In a specific embodiment, the first buckle 4 is gear-shaped, and a buckle that cooperates with the first buckle 4 is provided on the fixed base 2 .

[0043] In a specific embodiment, the second buckle 7 is gear-shaped, and the rotating assembly 6 is provided with a buckle that cooperates with the second buckle 7 .

[0044] In a specific embodiment, the central axis 5 is made of ABS or silicone.

[0045] In a specific embodiment, the flow rate regulating disk 1 has a diameter of 2.5 cm to 3.5 cm and a thickness of 0.3 cm to 0.6 cm.

[0046] In a specific embodiment, the fixed base 2 has a diameter of 3.5 cm to 4.5 cm and a thickness of 1 cm to 1.5 cm.

[0047] In a specific embodiment, a red marking line is provided on the outside of the fixed base 2 to facilitate the selection of the required number of drops corresponding to the number of drops on the flow rate adjustment disk 1 and facilitate observation by the operator.

[0048] In a specific embodiment, the length of the central axis 5 is 1.5 cm-2.5 cm.

[0049] In a specific embodiment, one end of the rotating assembly 6 is clamped in a limiting groove provided inside the fixed base 2 .

[0050] In a specific embodiment, a non-slip rubber pad is provided in the groove of the fixed base 2 where the infusion strap 3 is clamped.

[0051] like Figure 2As shown, the axial diameter of the flow rate adjustment disk 1 is evenly divided into 100 equal diameters. Every ten even digits are marked with a dividing line and a number on the flow rate adjustment disk 1, and every five odd digits are marked with a dividing line but no number is marked. This makes it clear and convenient to select the drip rate / minute. According to the formula for the number of drops of infusion, for example: number of drops per minute = liquid volume (ml) * drop coefficient / infusion time. The drop coefficient depends on the infusion strap. The drop coefficient of a gravity-type infusion strap is 20 drops / ml. For example, a flow rate of 60 drops per minute is 1.2mm. Lock the mark of 60 drops per minute, so that the required inner diameter speed of the infusion strap per minute is 1.2mm. The flow rate matches the number of drops.

[0052] This embodiment can accurately control the flow rate. The flow rate adjustment disk adopts a 100-equal-division scale design, and cooperates with the marking line of the fixed base to achieve visual adjustment accurate to the number of drops per minute. Precise control is achieved through the linkage of the threaded central axis and the I-shaped rotating assembly. The gear-like meshing structure of the first buckle and the fixed base can be mechanically locked through internal pressure operation after the adjustment is completed, effectively preventing the flow rate change caused by accidental touch by the patient. Anti-misoperation. When pulled outward and rotated: the second buckle engages with the rotating assembly to drive the central axis to move; after internal pressure locking: the first buckle forms a rigid connection with the fixed base. Physically isolate the adjustment from the locking state. Convenient operation and improved efficiency. It can be adjusted without calculation, reducing the time required for adjustment and improving efficiency.

[0053] Components not described in detail in this embodiment are all existing components that can be purchased through public channels.

[0054] The above description of the embodiments is intended to facilitate understanding and use of the invention by those skilled in the art. It will be apparent that those skilled in the art can readily make various modifications to these embodiments and apply the general principles described herein to other embodiments without requiring inventive effort. Therefore, the present invention is not limited to the above-described embodiments. Improvements and modifications made by those skilled in the art based on the disclosure of the present invention, without departing from the scope of the present invention, should be within the scope of protection of the present invention.

Claims

1. A self-adjusting infusion device with controllable drip rate, characterized in that: include: A fixed base (2) is clamped on the infusion strap (3); A flow rate regulating disk (1) is provided on the fixed base (2), and the flow rate regulating disk (1) can be rotated by pulling outward and fastened to the fixed base (2) by internal pressure; the flow rate regulating disk (1) is marked with numbers corresponding to different flow rates; A central shaft (5) and a rotating assembly (6) are threadedly connected, wherein the cross section of the rotating assembly (6) is in the shape of an I-beam, the central shaft (5) is arranged in the rotating assembly (6), and the rotating assembly (6) rotates to drive the central shaft (5) to move, thereby compressing the infusion strap (3) to control the flow rate; The flow rate regulating disk (1) is provided with a first buckle (4) and a second buckle (7); when the flow rate regulating disk (1) is pulled outward and rotated, the second buckle (7) is engaged with the rotating assembly (6), driving the rotating assembly (6) to rotate; when the flow rate regulating disk (1) is engaged with the fixed base (2) by internal pressure, the first buckle (4) is engaged and locked with the fixed base (2).

2. The self-adjustable infusion device with controllable drip rate according to claim 1, characterized in that: The first buckle (4) is gear-shaped, and a buckle that matches the first buckle (4) is provided on the fixed base (2).

3. The self-adjustable infusion device with controllable drip rate according to claim 1, characterized in that: The second buckle (7) is gear-shaped, and a buckle that matches the second buckle (7) is provided on the rotating assembly (6).

4. The anti-self-adjusting infusion device with controllable drip rate according to claim 1, characterized in that: The central axis (5) is made of ABS or silicone material.

5. The self-adjustable infusion device with controllable drip rate according to claim 1, characterized in that: The flow rate regulating disk (1) has a diameter of 2.5 cm to 3.5 cm and a thickness of 0.3 cm to 0.6 cm.

6. The self-adjustable infusion device with controllable drip rate according to claim 1, characterized in that: The fixed base (2) has a diameter of 3.5cm-4.5cm and a thickness of 1cm-1.5cm.

7. The self-adjustable infusion device with controllable drip rate according to claim 1, characterized in that: A marking line is provided on the outside of the fixed base (2).

8. The self-adjustable infusion device with controllable drip rate according to claim 1, characterized in that: The length of the central axis (5) is 1.5 cm to 2.5 cm.

9. The self-adjustable infusion device with controllable drip rate according to claim 1, characterized in that: One end of the rotating assembly (6) is clamped in a limiting groove provided inside the fixed base (2).

10. The self-adjustable infusion device with controllable drip rate according to claim 1, characterized in that: An anti-slip rubber pad is provided in the groove of the fixed base (2) for clamping the infusion strap (3).

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