Infusion automatic alarm device for intravenous therapy

By designing an automatic infusion alarm device for intravenous treatment, the problem that medical staff may forget to install an alarm and cause the infusion to end without prompts is solved, and automatic fluid level monitoring and alarm are achieved, ensuring patient safety and smooth care process.

CN120053805APending Publication Date: 2025-05-30YICHANG CENT PEOPLES HOSPITAL
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Patent Information

Application Number
CN202510228878.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2025-05-30

AI Technical Summary

Technical Problem

During intravenous infusion, medical staff may forget to install an automatic infusion alarm due to busy work, resulting in no prompts at the end of the infusion, which may delay the time for needle removal, increasing risks and inconvenience during the nursing process.

Method used

An infusion automatic alarm device is designed including a circular rotary block, an infusion hanger, an arc-shaped clamping plate and a power mechanism. The infusion hanger plate is driven to lift and lower through the power mechanism, and the liquid level monitoring and automatic alarm of the infusion tube is realized through the restriction mechanism and clamping mechanism.

Benefits of technology

The device can automatically monitor the infusion process and issue an alarm when medical staff are busy, preventing blood from flowing back into the infusion tube, ensuring patient safety and reducing risks and inconveniences during care.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of medical auxiliary equipment. The infusion automatic alarm device comprises a round transfer block, a round hole is formed in the center of the interior of the round transfer block in an up-down penetrating mode, and when a medical worker needs to hang an infusion bottle on an infusion hanging disc, the infusion hanging disc is driven to descend to a proper position through a power mechanism; according to the infusion hanging disc, the limiting mechanism is arranged on the infusion hanging disc, so that medical staff can conveniently hang various infusion bottles on the infusion hanging disc, then the infusion hanging disc is driven to ascend through the power mechanism, and the limiting mechanism drives the clamping mechanism to automatically clamp and position an infusion tube while improving the stability of the infusion hanging disc in the ascending process of the infusion hanging disc. The situation that medical staff forget to install the infusion automatic alarm in busy work is prevented, meanwhile, the infusion tube is monitored, and therefore the phenomenon that blood flows back into the infusion tube is avoided in time, the safety of a patient is guaranteed, and risks and inconvenience in the nursing process are greatly reduced.
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Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary devices, and particularly relates to an automatic infusion alarm device for intravenous therapy. Background Art

[0002] Intravenous infusion is one of the commonly used clinical treatment methods. It utilizes the principle that the internal pressure in the infusion system formed by atmospheric pressure and liquid hydrostatic pressure is higher than the human venous pressure to directly input the liquid into the human vein, playing a therapeutic role in correcting electrolyte disorders, improving microcirculation, controlling infections, supplementing nutrition, etc.

[0003] When medical staff perform intravenous infusion operations, they usually take a preventive measure, that is, an automatic alarm is assembled on the infusion tube. The original design intention of this device is to emit an alarm when the infusion is about to end, reminding medical staff to come and pull out the needle in time, so as to ensure the safety and smoothness of the infusion process.

[0004] However, in actual operation, sometimes medical staff may neglect to install the automatic infusion alarm after inserting the needle for the patient due to being busy with work. This neglect causes no corresponding prompt sound to sound when the liquid medicine is about to be completely infused. As a result, medical staff may not be able to detect the end of the infusion in time, thus delaying the time to pull out the needle. This delay may cause the phenomenon of blood backflow into the infusion tube. Although it usually does not cause direct harm to the patient, it does increase the risks and inconveniences in the nursing process. Summary of the Invention

[0005] The present invention provides the following technical solutions for the deficiencies existing in the prior art: An automatic infusion alarm device for intravenous therapy, including a circular transfer block. A circular hole is vertically penetrated through the center of the inside of the circular transfer block. A square hole is opened on the outer side of the circular transfer block, and the square hole is communicated with the circular hole. A pulling rope is movably sleeved in the circular hole. The bottom end of the pulling rope is provided with an infusion hanging tray, and an arc-shaped clamping plate is arranged at the bottom of the infusion hanging tray;

[0006] A limiting mechanism for ensuring the stable movement of the infusion hanging tray is fixedly arranged close to the bottom on the outer side of the circular transfer block;

[0007] At one end of the limiting mechanism, a clamping mechanism for driving the arc-shaped clamping plate to monitor the liquid level of the infusion tube is symmetrically and slidably arranged;

[0008] A power mechanism for driving the lifting of the infusion hanging tray is fixedly arranged on the outer side of the circular transfer block.

[0009] As an improvement of the above technical solution, the limiting mechanism includes a triangular fixed vertical plate, which is fixedly installed on the outer side of the circular transfer block close to the bottom through a bracket. A stable card slot is penetratively opened in the middle of the left side of the triangular fixed vertical plate. The stable card slot is movably clamped with a stable card plate. The left end of the stable card plate is fixedly installed on the outer side of the infusion hanging tray, and the right end of the stable card plate is fixedly installed with a connecting plate.

[0010] As an improvement of the above technical solution, the clamping mechanism includes an assisting card slot plate, which is fixedly installed at the bottom end of the connecting plate. The assisting card slot plate is movably clamped with a moving card block. Clamping card slot groups are opened at positions close to both sides of the triangular fixed vertical plate. The left end of the moving card block is rotatably connected with a cylindrical card block, and the cylindrical card block is movably clamped with the clamping card slot groups. A circular ring card slot is opened in the middle of the cylindrical card block, and a circular tooth is fixedly installed on the outer side of the circular ring card slot. An assisting vertical slot is opened on the inner wall of one side of the clamping card slot groups, and an assisting vertical tooth is fixedly installed on the rear inner wall of the assisting vertical slot. The left end of the cylindrical card block is fixedly installed with an assisting plate, and the left end of the assisting plate is fixedly installed with an arc-shaped clamping plate. An inductor is fixedly installed on the inner wall of the arc-shaped clamping plate. Cross slots are opened at both ends of the arc-shaped clamping plate, and an alarm is fixedly installed on the top of the arc-shaped clamping plate.

[0011] As an improvement of the above technical solution, the power mechanism includes a first connecting body, and a first connecting body is fixedly installed. The right end of the first connecting body is fixedly installed with a supporting component. A first placement card slot is opened at a position close to the right side inside the first connecting body. A first communication chamber is opened on the left side of the first connecting body. The first communication chamber is communicated with the square hole and the first placement card slot. A first automatic wire rewinder is fixedly installed on the right inner wall of the first placement card slot. One end of the pulling rope away from the infusion hanging tray extends into the first placement card slot through the first communication chamber, and the end of the pulling rope extending into the first placement card slot is fixedly arranged with the first automatic wire rewinder.

[0012] As an improvement of the above technical solution, the power mechanism includes a second connecting body, which is fixedly installed on the top of the circular transfer block. A horizontal card slot plate is movably clamped on the top of the second connecting body. A second placement card slot is opened at a position close to the top inside the second connecting body. A second communication chamber is opened at the bottom of the second connecting body. The second communication chamber is communicated with the round hole and the second placement card slot. A second automatic wire rewinder is fixedly installed on the top inner wall of the second placement card slot. One end of the pulling rope away from the infusion hanging tray extends into the second placement card slot through the second communication chamber, and the end of the pulling rope extending into the second placement card slot is fixedly arranged with the second automatic wire rewinder.

[0013] As an improvement of the above technical solution, a pulley is provided at the connection of the round hole and the square hole, and the pulley is in contact with the tension rope.

[0014] As an improvement of the above technical solution, the clamping card slot group includes a flipping card slot, a surrounding card slot and a fixing card slot. The flipping card slot is opened near the bottom on one side of the triangular fixing vertical plate, the surrounding card slot is opened in the middle on one side of the triangular fixing vertical plate, and the fixing card slot is opened near the top on one side of the triangular fixing vertical plate. The flipping card slot, the surrounding card slot and the fixing card slot communicate with each other.

[0015] As an improvement of the above technical solution, a friction ring is fixedly installed on the left side of the movable clamping block and outside the cylindrical clamping block, and the inner wall of the friction ring is in contact with the outside of the cylindrical clamping block.

[0016] As an improvement of the above technical solution, there are two arc-shaped clamping plates which are designed in a cross shape, and the other arc-shaped clamping plate is slidably clamped with the cross slot.

[0017] Advantages of the present invention: When medical staff needs to hang an infusion bottle on the infusion hanging tray, the power mechanism drives the infusion hanging tray to descend to a suitable position, so as to facilitate the medical staff to hang various infusion bottles on the infusion hanging tray. Then, the power mechanism drives the infusion hanging tray to rise. During the rising process of the infusion hanging tray, the limiting mechanism increases the stability of the infusion hanging tray and also drives the clamping mechanism to automatically complete the clamping and positioning of the infusion tube. This integrated design prevents medical staff from forgetting to install the infusion automatic alarm when they are busy at work, and at the same time monitors the infusion tube in real time, thus timely avoiding the phenomenon of blood flowing back into the infusion tube. It not only ensures the safety of patients, but also greatly reduces the risks and inconveniences in the nursing process. Description of the Drawings

[0018] Figure 1 It is the front view of the overall structure of the first embodiment of the present invention;

[0019] Figure 2 It is the front view of the overall structure of the second embodiment of the present invention;

[0020] Figure 3 It is the schematic diagram of the structure of the assisting card slot plate and the first connecting body of the present invention;

[0021] Figure 4 It is the cross-sectional view of the internal structure of the present invention;

[0022] Figure 5 It is the schematic diagram of the structure of the movable clamping block and the arc-shaped clamping plate of the present invention;

[0023] Figure 6 It is the present invention Figure 2 The enlarged view of the structure at A in

[0024] Figure 7 For the present invention Figure 3 Enlarged view of the structure at position B in the present invention;

[0025] Figure 8 For the present invention Figure 4 Enlarged view of the structure at position C in the present invention;

[0026] Figure 9 For the present invention Figure 4 Enlarged view of the structure at position D in the present invention;

[0027] Figure 10 For the present invention Figure 4 Enlarged view of the structure at position E in the present invention.

[0028] Reference numerals: 1, circular transfer block; 11, round hole; 12, rectangular hole; 13, pulling rope; 14, infusion hanging tray; 2, triangular fixed vertical plate; 21, stable card slot; 22, stable card plate; 23, connecting plate; 3, assisting card slot plate; 31, moving block; 32, clamping card slot group; 33, cylindrical block; 34, circular tooth; 35, assisting vertical tooth; 36, assisting plate; 37, arc-shaped clamping plate; 38, sensor; 39, cross slot; 4, first connecting body; 41, support assembly; 42, first placement card slot; 43, first communication bin; 44, first automatic wire rewinder; 5, second connecting body; 51, horizontal card slot plate; 52, second placement card slot; 53, second communication bin; 54, second automatic wire rewinder. Detailed implementation manners

[0029] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] Refer to the attached Figure 1 , in Figure 1 , the a direction points to the front view and the b direction points to the right side view. The above views are only used to understand the solution.

[0031] Please refer to Figures 1 - 10 shown, the present invention provides a technical solution:

[0032] Embodiment 1:

[0033] An automatic infusion alarm device for intravenous treatment, including a circular transfer block 1. A round hole 11 is vertically penetrated through the center of the inside of the circular transfer block 1. A rectangular hole 12 is opened on the outer side of the circular transfer block 1. The rectangular hole 12 communicates with the round hole 11. A pulling rope 13 is movably sleeved in the round hole 11. The bottom end of the pulling rope 13 is provided with an infusion hanging tray 14. An arc-shaped clamping plate 37 is provided at the bottom of the infusion hanging tray 14;

[0034] A limiting mechanism for ensuring the stable movement of the infusion hanging tray 14 is fixedly arranged on the outer side of the circular transfer block 1 close to the bottom;

[0035] Please refer to Figure 1 , Figure 3 and Figure 7 As shown, during the movement of the infusion hanging tray 14, it drives the limiting mechanism to move synchronously, so that the limiting mechanism increases the stability of the infusion hanging tray 14 during the movement, and at the same time provides power for the clamping mechanism.

[0036] One end of the limiting mechanism is symmetrically and slidably provided with a clamping mechanism that drives the arc-shaped clamping plate 37 to monitor the liquid level of the infusion tube;

[0037] Please refer to Figure 1 , Figure 4 , Figure 5 and Figure 10 As shown, during the rising process of the infusion hanging tray 14, the clamping mechanism surrounds and positions the infusion tube, and monitors the liquid in the infusion tube in real time during infusion, so as to remind the medical staff in time.

[0038] A power mechanism for driving the lifting of the infusion hanging tray 14 is fixedly arranged on the outer side of the circular transfer block 1.

[0039] Please refer to Figure 1 , Figure 3 and Figure 9 As shown, the power mechanism drives the infusion hanging tray 14 to move up and down through structures such as the circular transfer block 1, so that medical staff of different heights can hang the infusion bottle on the infusion hanging tray 14.

[0040] When medical staff need to hang the infusion bottle on the infusion hanging tray 14, the power mechanism drives the tension rope 13 to extend. The tension rope 13 extends downward through the round hole 11, so that the infusion hanging tray 14 moves downward to a suitable position under the gravity of itself, the clamping mechanism and the limiting mechanism, facilitating medical staff to hang various infusion bottles on the infusion hanging tray 14. After medical staff hang various infusion bottles on the infusion hanging tray 14, the power mechanism drives the tension rope 13 to contract, causing the tension rope 13 to pull the infusion hanging tray 14 upward. The infusion hanging tray 14 drives the infusion bottle upward. At the same time, during the upward movement of the infusion hanging tray 14, the limiting mechanism drives the stability of the movement of the infusion hanging tray 14, and the limiting mechanism drives the clamping mechanism to clamp and position the infusion tube during the upward movement. When the infusion hanging tray 14 moves to the top, the clamping mechanism completes the clamping of the infusion tube. During the patient's infusion, the clamping mechanism monitors the liquid in the infusion tube in real time. When the liquid in the infusion tube is about to run out, the clamping mechanism issues an alarm to prompt medical staff, enabling medical staff to pull out the needle in time. Through the cooperation of the limiting mechanism and the power mechanism, after medical staff hang the infusion bottle on the infusion hanging tray 14, the clamping mechanism automatically completes the clamping and positioning of the infusion tube. This integrated design can monitor the infusion tube in real time, thus timely avoiding the phenomenon of blood flowing back into the infusion tube, not only ensuring the safety of patients, but also greatly reducing the risks and inconveniences in the nursing process.

[0041] The limiting mechanism includes a triangular fixed vertical plate 2. The triangular fixed vertical plate 2 is fixedly installed on the outer side of the circular transfer block 1 close to the bottom through a bracket. A stable card slot 21 is penetratively opened in the middle of the left side of the triangular fixed vertical plate 2. A stable card plate 22 is movably clamped in the stable card slot 21. The left end of the stable card plate 22 is fixedly installed on the outer side of the infusion hanging tray 14, and a connecting plate 23 is fixedly installed at the right end of the stable card plate 22.

[0042] When the power mechanism pulls the infusion hanging tray 14 upward through the tension rope 13, the infusion hanging tray 14 drives the stable card plate 22 upward. The stable card plate 22 drives the connecting plate 23 upward. The stable card plate 22 moves upward along the stable card slot 21, so that the connecting plate 23 and the stable card slot 21 limit the stable card plate 22 during its upward movement, thereby increasing the stability of the upward movement of the infusion hanging tray 14. At the same time, the connecting plate 23 also provides power for the clamping mechanism during its upward movement.

[0043] The clamping mechanism includes a boosting clamping groove plate 3 which is fixedly installed at the bottom end of a connecting plate 23. A moving clamping block 31 is movably clamped to the boosting clamping groove plate 3. Clamping groove groups 32 are formed at positions near both sides of a triangular fixed vertical plate 2. The left end of the moving clamping block 31 is rotatably connected to a cylindrical clamping block 33 which is movably clamped to the clamping groove groups 32. An annular groove is formed in the middle of the cylindrical clamping block 33. A circular tooth 34 is fixedly installed on the outer side of the annular groove. A boosting vertical groove is formed in the inner wall of one side of the clamping groove groups 32. A boosting vertical tooth 35 is fixedly installed on the rear inner wall of the boosting vertical groove. A boosting plate 36 is fixedly installed at the left end of the cylindrical clamping block 33. An arc-shaped clamping plate 37 is fixedly installed at the left end of the boosting plate 36. An inductor 38 is fixedly installed on the inner wall of the arc-shaped clamping plate 37. Cross grooves 39 are formed at both ends of the arc-shaped clamping plate 37. An alarm is fixedly installed at the top of the arc-shaped clamping plate 37.

[0044] During the process that an infusion hanging tray 14 pulls an infusion bottle to move upward, a limiting mechanism drives the boosting clamping groove plate 3 to move upward. The boosting clamping groove plate 3 drives the moving clamping block 31 to move upward. The moving clamping block 31 drives the cylindrical clamping block 33 to move upward. The cylindrical clamping block 33 drives the circular tooth 34 to move upward. The cylindrical clamping block 33 drives the arc-shaped clamping plate 37 to move upward through the boosting plate 36. The arc-shaped clamping plate 37 drives the inductor 38 and the cross grooves 39 to move upward synchronously. The cylindrical clamping block 33 drives the circular tooth 34 to move upward along a flipping groove in the clamping groove groups 32. When the circular tooth 34 moves to be meshed with the boosting vertical tooth 35, at this time, when the cylindrical clamping block 33 drives the circular tooth 34 to continue to move upward, the cylindrical clamping block 33 rotates by 90 degrees under the cooperation of the boosting vertical tooth 35. The cylindrical clamping block 33 drives the arc-shaped clamping plate 37 to rotate from a vertical state to a horizontal state through the boosting plate 36. The arc-shaped clamping plate 37 drives the inductor 38 and the cross grooves 39 to rotate synchronously. Similarly, the working principle of the other arc-shaped clamping plate 37 is the same as above. After the cylindrical clamping block 33 enters the surrounding groove from the flipping groove and continues to move upward, the cylindrical clamping block 33 drives the boosting plate 36 to move forward and upward along the surrounding groove. The boosting plate 36 drives the arc-shaped clamping plate 37 to move forward and upward. The arc-shaped clamping plate 37 drives the inductor 38 and the cross grooves 39 to move synchronously. Similarly, the working principle of the other arc-shaped clamping plate 37 is the same as above. The two arc-shaped clamping plates 37 cross during the upward movement process, thereby clamping and positioning the infusion tube. When the cylindrical clamping blocks 33 on both sides enter the fixed grooves from the surrounding grooves, the two arc-shaped clamping plates 37 complete the crossing and position the infusion tube. During the patient's infusion process, the liquid in the infusion tube is monitored in real time through the inductor 38. When the liquid is about to finish, the inductor 38 sends a signal to make the alarm give an alarm, thereby reminding the medical staff to replace the infusion bottle or pull out the needle, thus timely avoiding the phenomenon that blood flows back into the infusion tube, not only ensuring the safety of the patient, but also greatly reducing the risks and inconveniences in the nursing process.

[0045] The power mechanism includes a first connecting body 4. The first connecting body 4 is fixedly installed with a first connecting body 4. A support assembly 41 is fixedly installed at the right end of the first connecting body 4. A first placement card slot 42 is provided at a position near the right side inside the first connecting body 4. A first communication chamber 43 is provided on the left side of the first connecting body 4. The first communication chamber 43 communicates with the cubic hole 12. The first communication chamber 43 communicates with the first placement card slot 42. A first automatic wire rewinder 44 is fixedly installed on the right inner wall of the first placement card slot 42. One end of the tension rope 13 away from the infusion hanging tray 14 extends into the first placement card slot 42 through the first communication chamber 43. One end of the tension rope 13 extending into the first placement card slot 42 is fixedly arranged with the first automatic wire rewinder 44.

[0046] When a patient needs infusion, the support assembly 41 is moved around the patient. The first automatic wire rewinder 44 is started through the remote control. The first automatic wire rewinder 44 drives the tension rope 13 to extend. The tension rope 13 extends downward through the cubic hole 12 and the round hole 11, so that the infusion hanging tray 14 moves downward to a suitable position under the gravity of itself, the clamping mechanism and the limiting mechanism, thus facilitating the medical staff to hang various infusion bottles on the infusion hanging tray 14. After the medical staff hang various infusion bottles on the infusion hanging tray 14, the first automatic wire rewinder 44 pulls the infusion hanging tray 14 upward through the tension rope 13, and the infusion hanging tray 14 pulls multiple infusion bottles upward to a high position, thus facilitating the liquid medicine in the infusion bottles to enter the patient's body.

[0047] A pulley is provided at the connection of the round hole 11 and the cubic hole 12. The pulley is in contact with the tension rope 13.

[0048] Through the design of the pulley, the frictional resistance at the connection of the tension rope 13 with the round hole 11 and the cubic hole 12 is reduced, and the tension rope 13 is protected.

[0049] The clamping card slot group 32 includes a flipping card slot, a surrounding card slot and a fixing card slot. The flipping card slot is provided at a position near the bottom on one side of the triangular fixed vertical plate 2. The surrounding card slot is provided in the middle on one side of the triangular fixed vertical plate 2. The fixing card slot is provided at a position near the top on one side of the triangular fixed vertical plate 2. The flipping card slot, the surrounding card slot and the fixing card slot communicate with each other.

[0050] Through the design of the flipping card slot, the surrounding card slot and the fixing card slot, when the cylindrical block 33 moves upward along the clamping card slot group 32, it can drive its corresponding arc-shaped clamping plate 37 to flip and move crosswise to position the infusion tube.

[0051] A friction ring is fixedly installed on the left side of the moving block 31 and outside the cylindrical block 33. The inner wall of the friction ring is in contact with the outer side of the cylindrical block 33.

[0052] Through the design of the friction ring, the frictional resistance during the rotation of the cylindrical clamping block 33 is increased, thereby enhancing the stability of the cylindrical clamping block 33 before and after rotation.

[0053] Two arc-shaped clamping plates 37 are arranged in a cross-shaped design, and another arc-shaped clamping plate 37 is slidably clamped with the cross groove 39.

[0054] Through the cross-shaped design of the two arc-shaped clamping plates 37, the two arc-shaped clamping plates 37 can surround and position the infusion tube during the upward movement, thus facilitating the subsequent liquid level monitoring of the infusion tube by the sensor 38.

[0055] Embodiment 2:

[0056] Please refer to Figure 2 and Figure 6 As shown, the other parts of this embodiment are the same as those of Embodiment 1, and the different part is that the first connecting body 4 is replaced with the second connecting body 5.

[0057] The power mechanism includes a second connecting body 5. The second connecting body 5 is fixedly installed on the top of the circular transfer block 1. A horizontal card slot plate 51 is movably clamped on the top of the second connecting body 5. A second placement card slot 52 is opened near the top inside the second connecting body 5. A second communication chamber 53 is opened at the bottom of the second connecting body 5. The second communication chamber 53 is communicated with the circular hole 11, and the second communication chamber 53 is communicated with the second placement card slot 52. A second automatic wire rewinder 54 is fixedly installed on the inner wall of the top of the second placement card slot 52. One end of the pulling rope 13 away from the infusion hanging plate 14 extends into the second placement card slot 52 through the second communication chamber 53, and the end of the pulling rope 13 extending into the second placement card slot 52 is fixedly arranged with the second automatic wire rewinder 54.

[0058] When the patient needs an infusion, move the second connecting body 5 so that the second connecting body 5 slides along the horizontal card slot plate 51 to a suitable position. Start the second automatic wire rewinder 54 through the remote control. The second automatic wire rewinder 54 drives the pulling rope 13 to extend. The pulling rope 13 extends downward through the second communication chamber 53 and the circular hole 11, so that the infusion hanging plate 14 moves downward to a suitable position due to its own gravity and the gravity of the clamping mechanism and the limiting mechanism, thus facilitating the medical staff to hang various infusion bottles on the infusion hanging plate 14. After the medical staff hang various infusion bottles on the infusion hanging plate 14, the second automatic wire rewinder 54 pulls the infusion hanging plate 14 upward through the pulling rope 13, and the infusion hanging plate 14 pulls multiple infusion bottles upward to a high position, thus facilitating the liquid medicine in the infusion bottles to enter the patient's body.

[0059] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it.

Claims

1. An automatic alarm device for infusion in intravenous therapy, characterized in that: The invention comprises a circular transfer block (1), wherein a circular hole (11) is provided in the center of the circular transfer block (1) in an upper and lower manner, a square hole (12) is provided on the outer side of the circular transfer block (1), the square hole (12) is connected with the circular hole (11), a tension rope (13) is movably sleeved in the circular hole (11), an infusion hanging plate (14) is provided at the bottom end of the tension rope (13), and an arc-shaped clamping plate (37) is provided at the bottom of the infusion hanging plate (14); A limiting mechanism is fixedly arranged on the outer side of the circular transfer block (1) close to the bottom to ensure that the infusion hanging tray (14) can move smoothly; One end of the limiting mechanism is symmetrically slidably provided with a clamping mechanism that drives an arc-shaped clamping plate (37) to monitor the liquid level of the infusion tube; A power mechanism for driving the infusion hanging plate (14) to move up and down is fixedly arranged on the outer side of the circular transfer block (1).

2. The automatic alarm device for infusion in intravenous therapy according to claim 1, characterized in that: The limiting mechanism comprises a triangular fixed vertical plate (2), the triangular fixed vertical plate (2) being fixedly mounted on the outer side of the circular transfer block (1) close to the bottom through a bracket, a stabilizing slot (21) being provided through the middle of the left side of the triangular fixed vertical plate (2), a stabilizing slot (22) being movably connected to the stabilizing slot (21), the left end of the stabilizing slot (22) being fixedly mounted on the outer side of the infusion hanging plate (14), and a connecting plate (23) being fixedly mounted on the right end of the stabilizing slot (22).

3. The automatic alarm device for infusion in intravenous therapy according to claim 2, characterized in that: The clamping mechanism comprises a power-assisting card slot plate (3), the power-assisting card slot plate (3) is fixedly mounted on the bottom end of the connecting plate (23), the power-assisting card slot plate (3) is movably connected with a moving card block (31), the triangular fixed vertical plate (2) is provided with a clamping card slot group (32) near the two sides, the left end of the moving card block (31) is rotatably connected with a cylindrical card block (33), the cylindrical card block (33) is movably connected with the clamping card slot group (32), the middle of the cylindrical card block (33) is provided with a circular card slot, and the outer side of the circular card slot is fixedly installed with a A circular tooth (34), a power-assisting vertical groove is provided on the inner wall of one side of the clamping slot group (32), a power-assisting vertical tooth (35) is fixedly installed on the inner wall of the rear side of the power-assisting vertical groove, a power-assisting plate (36) is fixedly installed on the left end of the cylindrical clamping block (33), an arc-shaped clamping plate (37) is fixedly installed on the left end of the power-assisting plate (36), a sensor (38) is fixedly installed on the inner wall of the arc-shaped clamping plate (37), cross grooves (39) are provided on both ends of the arc-shaped clamping plate (37), and an alarm is fixedly installed on the top of the arc-shaped clamping plate (37).

4. The automatic alarm device for infusion in intravenous therapy according to claim 1, characterized in that: The power mechanism comprises a first connector (4), the first connector (4) is fixedly mounted with the first connector (4), a support assembly (41) is fixedly mounted on the right end of the first connector (4), a first placement slot (42) is provided in the interior of the first connector (4) near the right side, a first connecting chamber (43) is provided on the left side of the first connector (4), the first connecting chamber (43) is connected with the square hole (12), the first connecting chamber (43) is connected with the first placement slot (42), a first automatic wire take-up device (44) is fixedly mounted on the right inner wall of the first placement slot (42), one end of the tension rope (13) away from the infusion hanging plate (14) extends into the first placement slot (42) through the first connecting chamber (43), and the end of the tension rope (13) extending into the first placement slot (42) is fixedly arranged with the first automatic wire take-up device (44).

5. The automatic alarm device for infusion in intravenous therapy according to claim 1, characterized in that: The power mechanism comprises a second connector (5), the second connector (5) is fixedly mounted on the top of the circular transfer block (1), the top of the second connector (5) is movably connected with a horizontal slot plate (51), the interior of the second connector (5) is provided with a second placement slot (52) near the top, the bottom of the second connector (5) is provided with a second connecting chamber (53), the second connecting chamber (53) is connected with the circular hole (11), the second connecting chamber (53) is connected with the second placement slot (52), a second automatic wire take-up device (54) is fixedly mounted on the top inner wall of the second placement slot (52), one end of the pulling rope (13) away from the infusion hanging plate (14) extends into the second placement slot (52) through the second connecting chamber (53), and the end of the pulling rope (13) extending into the second placement slot (52) is fixedly arranged with the second automatic wire take-up device (54).

6. The automatic alarm device for infusion in intravenous therapy according to claim 1, characterized in that: A pulley is provided at the connection between the circular hole (11) and the square hole (12), and the pulley is fitted with the tension rope (13).

7. The automatic alarm device for infusion in intravenous therapy according to claim 3, characterized in that: The clamping slot group (32) comprises a flip slot, a surrounding slot and a fixed slot, wherein the flip slot is arranged on one side of the triangular fixed vertical plate (2) near the bottom, the surrounding slot is arranged on the middle of one side of the triangular fixed vertical plate (2), and the fixed slot is arranged on one side of the triangular fixed vertical plate (2) near the top, and the flip slot, the surrounding slot and the fixed slot are connected.

8. The automatic infusion alarm device for intravenous therapy according to claim 3, characterized in that: A friction ring is fixedly installed on the left side of the movable clamping block (31) and located outside the cylindrical clamping block (33), and the inner wall of the friction ring is in contact with the outer side of the cylindrical clamping block (33).

9. The automatic infusion alarm device for intravenous therapy according to claim 3, characterized in that: The two arc-shaped clamping plates (37) are designed to be cross-shaped, and the other arc-shaped clamping plate (37) is slidably engaged with the cross groove (39).