An infusion set with intelligent sensing and control of infusion drip rate

Abstract

This invention discloses an infusion set with intelligent sensing and control of infusion drip rate, belonging to the field of medical device technology. It includes a puncture head, an infusion tubing attached to the lower end of the puncture head, an infusion needle attached to the other end of the tubing, a drip chamber mounted on the tubing, an L-shaped mounting bracket connected to the tubing wall, a mounting plate slidably mounted on the side wall of the mounting bracket near the drip chamber, an infrared sensor mounted on the other side of the mounting plate, a controller mounted on the side wall of the mounting bracket away from the drip chamber, and an alarm mounted on the side wall of the mounting bracket. This invention overcomes the shortcomings of existing technologies. By setting up the interrelationship between the infusion tubing, drip chamber, infrared sensor, controller, alarm, and sensing float, it can automatically monitor the medication inside the infusion tubing, promptly alerting medical staff and patients, preventing air from being introduced into the body through the infusion tubing, thereby improving the applicability of the device.

Description

Technical Field

[0001] This invention relates to the field of medical devices, and in particular to an infusion set with intelligent sensing and control of infusion drip rate. Background Technology

[0002] An infusion set is a common medical device product. After sterilization, it is used to establish a channel between a vein and a medication for intravenous infusion. It generally consists of eight parts: an intravenous needle or injection needle, a needle cap, an infusion tubing, a medication filter, a flow regulator, a drip chamber, a stopper puncture device, and an air filter. Some infusion sets also have injection ports and medication dispensing ports.

[0003] Currently, existing infusion sets require medical staff to monitor the medication in the bottle during infusion to prevent air from entering the infusion tube when the medication is empty. This increases the burden on medical staff and makes them less suitable for use. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an infusion set with intelligent sensing and control of infusion drip rate, thus overcoming the deficiencies of existing technologies.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an infusion set with intelligent sensing and control of infusion drip rate, comprising a puncture head, an infusion tubing installed at the lower end of the puncture head, an infusion needle installed at the other end of the infusion tubing, a drip chamber installed on the infusion tubing, an L-shaped mounting bracket connected to the wall of the infusion tubing, a mounting plate slidably mounted on the side wall of the mounting bracket near the drip chamber, an infrared sensor mounted on the other side of the mounting plate, a controller mounted on the side wall of the mounting bracket away from the drip chamber, an alarm mounted on the side wall of the mounting bracket, and the infrared sensor, the alarm, and the controller are electrically connected to each other, an adjustment component for adjusting the position of the infrared sensor is mounted on the mounting bracket, a sensing float is slidably mounted inside the drip chamber, and the sensing float is correspondingly set with the infrared sensor, and a squeezing component for adjusting the drip rate of the medication is mounted on the infusion tubing.

[0006] By adopting the above technical solution, during use, a puncture head is inserted into the drip bottle, and the medication is transferred through the infusion tubing. The infusion needle is then inserted into a vein to deliver the medication into the body. As the infusion tubing drips the medication into the drip chamber, the liquid level inside the chamber rises, causing the float to move upwards due to buoyancy. When the liquid level in the drip chamber stops changing, the controller activates the infrared sensor. When the drip bottle is empty, the upper part of the infusion tubing in the drip chamber is emptied, and the lower part of the infusion tubing... The medication will continue to be infused into the drip chamber. As the liquid level in the drip chamber drops, the sensing float will move downwards due to gravity. When an infrared sensor shines on the sensing float, it transmits the information to the controller. Upon receiving the information, the controller will activate the alarm, which will sound to promptly alert medical staff and patients. This structure automatically monitors the medication level inside the infusion tubing, promptly alerting medical staff and patients and preventing air from being introduced into the body through the infusion tubing, thereby improving the applicability of the device.

[0007] As a preferred embodiment of the present invention, the adjustment assembly includes a pulley fixedly installed on the upper end of the mounting frame, a pull rope wound around the pulley, one end of the pull rope being connected to the mounting plate, and a pull ring being installed on the other end of the pull rope. A plurality of limiting rods are evenly and equidistantly connected on the upper end of the mounting frame, and the pull ring is sleeved on the corresponding limiting rod.

[0008] By adopting the above technical solution, when it is necessary to adjust the position of the infrared sensor, the pull ring is removed from the corresponding limit rod, and then the pull rope is pulled. The pull rope will apply a force to the mounting plate through the pulley. The mounting plate will move vertically under the force, and the movement of the mounting plate will drive the infrared sensor to move. When the infrared sensor moves to the designated position, the pull ring is then put back on the corresponding limit rod. Through the above structure, the height of the infrared sensor can be adjusted to meet the needs under different conditions, thereby improving the practicality of the device.

[0009] As a preferred embodiment of the present invention, a sliding groove is provided on one side wall of the mounting bracket, and a slider is slidably connected in the sliding groove, with one end of the slider connected to the mounting plate.

[0010] By adopting the above technical solution, the mounting plate is limited, thereby improving the stability of its movement.

[0011] As a preferred embodiment of the present invention, a sliding rod is fixedly connected to the inner wall of the chute, the sliding rod passes through the slider, and the slider is slidably connected to the sliding rod.

[0012] By adopting the above technical solution, the slider is prevented from detaching from the groove.

[0013] As a preferred embodiment of the present invention, one end of the slider is provided with a rolling groove, and a rolling ball is provided in the rolling groove. The rolling ball passes through the opening of the rolling groove and is tumblingly connected to the bottom of the groove.

[0014] By adopting the above technical solution, the friction between the slider and the groove is reduced.

[0015] As a preferred embodiment of the present invention, the squeezing assembly includes a fixed box, the infusion tubing passes through the fixed box, two squeezing wheels are symmetrically slidably connected inside the fixed box, the two squeezing wheels abut against the infusion tubing, one end of the two squeezing wheels passes through the side wall of one side of the fixed box and extends outward and is connected to a movable plate, a lead screw is rotatably connected to the outer side wall of one side of the fixed box, and the lead screw is threadedly connected to the movable plate.

[0016] By adopting the above technical solution, when it is necessary to adjust the drip rate, the lead screw is rotated. The rotation of the lead screw will apply a force to the movable plate through the thread action. The movable plate will move horizontally due to the force, and the movement of the movable plate will drive the squeezing wheel to move. The movement of the squeezing wheel will squeeze the infusion tubing to adjust the drip rate of the infusion.

[0017] As a preferred embodiment of the present invention, one end of the lead screw is connected to a rotating block.

[0018] By adopting the above technical solution, it is convenient for staff to rotate the lead screw.

[0019] As a preferred embodiment of the present invention, a fixed tube is connected to the inner wall of one side of the dripping bucket, and a fixed rod is slidably connected inside the fixed tube. The lower end of the fixed rod passes through the opening of the fixed tube and extends downward and is connected to the induction float.

[0020] By adopting the above technical solution, the fixed rod moves inside the fixed tube, so that the sensing float moves vertically.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] (1) This invention, through the arrangement of a puncture head, infusion tubing, infusion needle, drip chamber, mounting bracket, mounting plate, infrared sensor, controller, alarm, and sensing float, delivers medication into the human body via the puncture head, infusion tubing, and infusion needle. When the infusion tubing drips the medication into the drip chamber, the liquid level inside the drip chamber rises, causing the sensing float to move upwards due to buoyancy. When the liquid level inside the drip chamber stops changing, the controller activates the infrared sensor. When the medication in the drip bottle is empty, the infusion tubing in the upper part of the drip chamber is emptied, and the lower part of the drip chamber... The infusion tubing continues to deliver the medication from the drip chamber. As a result, the liquid level inside the drip chamber drops, causing the sensing float to move downwards under gravity. When an infrared sensor illuminates the sensing float, it transmits the information to the controller. Upon receiving this information, the controller activates the alarm, alerting medical staff and the patient. This structure automatically monitors the medication level inside the infusion tubing, promptly alerting medical staff and the patient to prevent air from being introduced into the body, thus improving the device's usability.

[0023] (2) This invention, by setting up structures such as pulleys, pull ropes, pull rings, limiting rods, sliders, sliding rods, and ball bearings, allows the infrared sensor to be adjusted when its position needs to be adjusted. The pull ring is removed from the corresponding limiting rod, and then the pull rope is pulled. The pull rope will exert a force on the mounting plate through the pulley, causing the mounting plate to move vertically. The movement of the mounting plate will drive the infrared sensor to move. When the infrared sensor moves to the designated position, the pull ring is then put back onto the corresponding limiting rod. Through the above structure, the height of the infrared sensor can be adjusted to meet the needs under different conditions, thereby improving the practicality of the device.

[0024] (3) The present invention sets up a fixed box, a squeezing wheel, a movable plate and a lead screw. When the lead screw is rotated, the rotation of the lead screw will apply a force to the movable plate through the thread action. The movable plate will move horizontally under the force, and the movement of the movable plate will drive the squeezing wheel to move. The movement of the squeezing wheel will squeeze the infusion tubing to adjust the drip rate of the infusion. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the internal structure of the dripping funnel in this invention;

[0028] Figure 4 This is an enlarged view of part A in Figure 3;

[0029] Figure 5 This is an enlarged view of part B in Figure 3.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Puncture head; 2. Infusion tubing; 3. Infusion needle; 4. Drip chamber; 5. Mounting bracket; 6. Mounting plate; 7. Infrared sensor; 8. Controller; 9. Alarm; 10. Sensor float; 11. Pulley; 12. Pull rope; 13. Pull ring; 14. Limiting rod; 15. Sliding block; 16. Sliding rod; 17. Ball bearing; 18. Fixing box; 19. Squeezing wheel; 20. Movable plate; 21. Lead screw; 22. Fixing tube; 23. Fixing rod. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figure 1-3 and Figure 5 An infusion set with intelligent sensing and control of infusion drip rate includes a puncture head 1, an infusion tubing 2 installed at the lower end of the puncture head 1, an infusion needle 3 installed at the other end of the infusion tubing 2, a drip chamber 4 installed on the infusion tubing 2, and an L-shaped mounting bracket 5 connected to the wall of the infusion tubing 2. A mounting plate 6 is slidably mounted on the side wall of the mounting bracket 5 near the drip chamber 4. A groove is formed on one side wall of the mounting bracket 5, and a slider 15 is slidably connected within the groove. One end of the slider 15 is connected to... On the mounting plate 6, the mounting plate 6 is limited to improve the stability of the movement of the mounting plate 6. A slide rod 16 is fixedly connected to the inner wall of the slide groove. The slide rod 16 passes through the slider 15 and the slider 15 is slidably connected to the slide rod 16 to prevent the slider 15 from detaching from the slide groove. A rolling groove is opened at one end of the slider 15. A rolling ball 17 is set in the rolling groove. The ball 17 passes through the opening of the rolling groove and is slidably connected to the bottom of the slide groove to reduce the friction between the slider 15 and the slide groove.

[0034] For details, please refer to Figure 2-4An infrared sensor 7 is mounted on the other side of the mounting plate 6. A controller 8 is mounted on the side wall of the mounting frame 5 away from the dripping bucket 4. An alarm 9 is mounted on the side wall of the mounting frame 5. The infrared sensor 7, the alarm 9, and the controller 8 are electrically connected to each other. The infrared sensor 7, the alarm 9, and the controller 8 are all existing technologies. The specific structure and working principle can be found in the existing technology and will not be described in detail in this invention. An adjustment component for adjusting the position of the infrared sensor 7 is mounted on the mounting frame 5. The adjustment component includes a pulley 11 fixedly mounted on the upper end of the mounting frame 5. A pull rope 12 is wound around the pulley 11. One end of the pull rope 12 is connected to the mounting plate 6, and a pull ring is installed on the other end of the pull rope 12. 13. Several limiting rods 14 are evenly spaced on the upper end of the mounting frame 5. Pull rings 13 are fitted onto the corresponding limiting rods 14. When it is necessary to adjust the position of the infrared sensor 7, the pull rings 13 are removed from the corresponding limiting rods 14, and then the pull rope 12 is pulled. The pull rope 12 will apply a force to the mounting plate 6 through the pulley 11. The mounting plate 6 will move vertically under the force, and the movement of the mounting plate 6 will drive the infrared sensor 7 to move. When the infrared sensor 7 moves to the designated position, the pull rings 13 are fitted onto the corresponding limiting rods 14. The height of the infrared sensor 7 can be adjusted through the above structure to meet the needs under different conditions, thereby improving the practicality of the device.

[0035] A sensing float 10 is slidably installed inside the dripping container 4, and the sensing float 10 is correspondingly set with the infrared sensor 7. A fixed tube 22 is connected to the inner wall of one side of the dripping container 4. A fixed rod 23 is slidably connected inside the fixed tube 22. The lower end of the fixed rod 23 passes through the opening of the fixed tube 22 and extends downward and is connected to the sensing float 10. The fixed rod 23 moves inside the fixed tube 22 to make the sensing float 10 move vertically. A squeezing component for adjusting the drip rate of the medicine is installed on the infusion tubing 2. In use, the puncture head is inserted into the drip bottle, and the medicine is transferred through the infusion tubing 2. Then, the infusion needle 3 is inserted into the human vein to inject the medicine into the human body. When the infusion tubing 2 drips the medicine into the dripping container 4, the liquid level inside the dripping container 4 will rise, and the sensing float 10 will move upward due to the buoyancy force. When the liquid level inside the drip chamber 4 stops changing, the infrared sensor 7 is activated by the controller 8. When the medication in the drip bottle is empty, the infusion tubing 2 in the upper part of the drip chamber 4 will be emptied, and the infusion tubing 2 in the lower part of the drip chamber 4 will continue to deliver the medication. At this time, the liquid level inside the drip chamber 4 will drop, and the sensing float 10 will move downward under the force of gravity. When the infrared sensor 7 shines on the sensing float 10, the infrared sensor 7 will transmit the information to the controller 8. After receiving the information, the controller 8 will activate the alarm 9, which will sound an alarm to promptly remind medical staff and patients. This structure can automatically monitor the medication inside the infusion tubing 2, promptly reminding medical staff and patients and preventing air from being introduced into the body through the infusion tubing 2, thereby improving the applicability of the device.

[0036] For details, please refer to Figure 1-2 The squeezing assembly includes a fixed box 18, through which the infusion tubing 2 passes. Two squeezing wheels 19 are symmetrically slidably connected within the fixed box 18, abutting against the infusion tubing 2. One end of each squeezing wheel 19 passes through a side wall of the fixed box 18 and extends outward, connecting to a movable plate 20. A lead screw 21 is rotatably connected to the outer side wall of the fixed box 18, threadedly connected to the movable plate 20. One end of the lead screw 21 is connected to a rotating block, facilitating rotation by the operator. When the drip rate needs adjustment, rotating the lead screw 21 applies force to the movable plate 20 through the threaded action. The movable plate 20, under this force, moves horizontally, causing the squeezing wheels 19 to move. This movement squeezes the infusion tubing 2, thus adjusting the drip rate.

[0037] Working principle: In use, the puncture head is inserted into the drip bottle, and the medication is delivered through the infusion tubing 2. The infusion needle 3 is then inserted into a vein to deliver the medication into the body. As the medication drips into the drip chamber 4 through the tubing 2, the liquid level inside the chamber rises, causing the float 10 to move upwards due to buoyancy. When the liquid level in the drip chamber 4 stops changing, the infrared sensor 7 is activated via the controller 8. The system stops working when the medication in the drip bottle is empty. When the infusion tubing 2 in the upper part of the drip chamber 4 is emptied, the infusion tubing 2 in the lower part of the drip chamber 4 will continue to infuse the medicine inside the drip chamber 4. At this time, the liquid level inside the drip chamber 4 will drop, and the sensing float 10 will move downward under the force of gravity. When the infrared sensor 7 shines on the sensing float 10, the infrared sensor 7 will transmit the information to the controller 8. After receiving the information, the controller 8 will activate the alarm 9, which will sound an alarm to promptly remind medical staff and patients.

[0038] Finally, it should be noted that in the description of this invention, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0039] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. An infusion set with intelligent sensing and control of infusion drip rate, comprising a puncture head (1), an infusion tubing (2) installed at the lower end of the puncture head (1), an infusion needle (3) installed at the other end of the infusion tubing (2), and a drip chamber (4) installed on the infusion tubing (2), characterized in that: An L-shaped mounting bracket (5) is connected to the wall of the infusion tubing (2). A mounting plate (6) is slidably mounted on the side wall of the mounting bracket (5) near the drip chamber (4). An infrared sensor (7) is mounted on the other side of the mounting plate (6). A controller (8) is mounted on the side wall of the mounting bracket (5) away from the drip chamber (4). An alarm (9) is mounted on the side wall of the mounting bracket (5). The infrared sensor (7), the alarm (9), and the controller (8) are electrically connected to each other. An adjustment component for adjusting the position of the infrared sensor (7) is mounted on the mounting bracket (5). A sensing float (10) is slidably mounted inside the drip chamber (4). The sensing float (10) is correspondingly set with the infrared sensor (7). A squeezing component for adjusting the drip rate of the medicine is mounted on the infusion tubing (2). The adjustment component includes a pulley fixedly mounted on the upper end of the mounting bracket (5). (11) A pull rope (12) is wound around the pulley (11). One end of the pull rope (12) is connected to the mounting plate (6). The other end of the pull rope (12) is equipped with a pull ring (13). Several limiting rods (14) are evenly and equidistantly connected to the upper end of the mounting frame (5). The pull ring (13) is sleeved on the corresponding limiting rod (14). The squeezing assembly includes a fixed box (18). The infusion tubing (2) passes through the fixed box (18). Two squeezing wheels (19) are symmetrically slidably connected inside the fixed box (18). The two squeezing wheels (19) abut against the infusion tubing (2). One end of the two squeezing wheels (19) passes through the side wall of one side of the fixed box (18) and extends outward and is connected to a movable plate (20). A screw rod (21) is rotatably connected to the outer side wall of one side of the fixed box (18). The screw rod (21) is threadedly connected to the movable plate (20).

2. The infusion set with intelligent sensing and control of infusion drip rate function according to claim 1, characterized in that: A sliding groove is provided on one side wall of the mounting bracket (5), and a slider (15) is slidably connected in the sliding groove. One end of the slider (15) is connected to the mounting plate (6).

3. An infusion set with intelligent sensing and control of infusion drip rate function according to claim 2, characterized in that: A slide rod (16) is fixedly connected to the inner wall of the chute. The slide rod (16) passes through the slider (15), and the slider (15) is slidably connected to the slide rod (16).

4. An infusion set with intelligent sensing and control of infusion drip rate function according to claim 3, characterized in that: One end of the slider (15) is provided with a rolling groove, and a rolling ball (17) is provided in the rolling groove. The ball (17) passes through the opening of the rolling groove and is connected to the bottom of the groove.

5. An infusion set with intelligent sensing and control of infusion drip rate function according to claim 1, characterized in that: One end of the lead screw (21) is connected to a rotating block.

6. An infusion set with intelligent sensing and control of infusion drip rate according to claim 1, characterized in that: A fixed tube (22) is connected to the inner wall of one side of the dripping bucket (4). A fixed rod (23) is slidably connected inside the fixed tube (22). The lower end of the fixed rod (23) passes through the opening of the fixed tube (22) and extends downward and is connected to the induction float (10).

Images