Infusion dripping speed control assembly

Through the miniaturized infusion drip rate control component, the infrared sensor and the pressure tube are used to achieve precise control of the infusion drip rate, solving the problems of large equipment size and difficulty in accurately controlling the drip rate in the existing technology, and improving the convenience and safety of operation.

CN223453556UActive Publication Date: 2025-10-21NINGBO ZHENHAI DISTRICT PEOPLES HOSPITAL MEDICAL GRP
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Patent Information

Application Number
CN202422372165.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-27
Publication Date
2025-10-21
Estimated Expiration
2034-09-27

AI Technical Summary

Technical Problem

Existing infusion drip rate controllers are large in size, take up a lot of space, and are difficult to accurately control the drip rate, especially for liquid medicines that require precise control, which can easily lead to adverse consequences.

Method used

The device uses a miniaturized detector and controller. The infrared sensor detects the dripping rate of the liquid in the Murphy's dropper. The controller adjusts the dripping rate by pressing the tube and displays the value on the display. The detector and controller are respectively clamped on the Murphy's dropper and infusion tube, and fixed with a pressure block and a pull tube to prevent slipping.

Benefits of technology

It achieves precise control of the infusion drip rate, reduces the space occupied by the equipment, prevents the equipment from accidentally slipping, and improves the convenience and safety of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a transfusion dripping speed control assembly, which comprises a detector and a controller, the front side of the detector is provided with a groove shaped like a Chinese character'zhong ', the groove shaped like the Chinese character'zhong' is matched with the shape of the existing Murphy's dropper, the Murphy's dropper can be buckled into the groove shaped like the Chinese character'zhong ', and the side wall of the groove shaped like the Chinese character'zhong' is provided with an infrared sensor. The infrared sensor is used for detecting the dripping speed of liquid in the Murphy's dropper. A display screen and a vertical-line-shaped groove are arranged on the front face of the controller, the display screen is electrically connected with the infrared sensor, and the display screen can display the infusion dripping speed numerical value. The vertical-line-shaped groove is matched with an existing infusion tube in shape, the infusion tube can be buckled into the vertical-line-shaped groove, and a tube pressing piece used for adjusting the infusion dripping speed is arranged on the side wall of the vertical-line-shaped groove. The detector detects the dripping speed of liquid in the Murphy's dropper through the infrared sensor, the controller adjusts the infusion dripping speed through the pipe pressing piece, the current infusion dripping speed value is displayed through the display screen, and the infusion dripping speed can be accurately controlled according to requirements. In addition, the detector and the controller are small in size and small in occupied space.
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Description

TECHNICAL FIELD

[0001] The utility model relates to medical appliance technical field, concretely is a kind of infusion drip speed control assembly. BACKGROUND

[0002] Infusion is a common medical treatment, but the drip speed of infusion in prior art is usually controlled by artificial feeling, for some liquid medicine needing accurate control of drip speed, such as potassium ion-containing liquid medicine, blood products, liquid medicine with greater stimulation to blood vessels, etc., artificial perception cannot accurately control the drip speed, and is easy to cause some adverse consequences, and even life-threatening in serious cases, and in actual infusion, medical staff needs to adjust several times to reach appropriate drip speed, wasting time and being low in work efficiency.

[0003] The existing infusion controller (manufacturer is Guangzhou Oupu Rui Medical Technology Co., Ltd.) detects each drop of liquid in the mofti's dropper through infrared sensor, converts the intermittent optical signal into electrical signal, and then detects the flow rate of the liquid, and can accurately control the infusion drip speed. The existing infusion controller is prone to tilting, and needs to be clamped by a fixing clamp to fix the infusion controller on the infusion stand rod. However, there are still deficiencies: the existing infusion controller is large in size and occupies a large space. UTILITARY MODEL

[0004] The utility model aims at providing an infusion drip speed control assembly, the detector detects the liquid drip speed in the mofti's dropper through infrared sensor, the controller adjusts the infusion drip speed through the pipe adjusting part, and displays the current infusion drip speed value through the display screen, so that the infusion drip speed can be accurately controlled according to requirements; moreover, the detector and the controller are small in size and occupy a small space.

[0005] In order to achieve the above-mentioned purposes, the utility model adopts the following technical solutions:

[0006] An infusion drip speed control assembly includes a detector and a controller, the front surface of the detector is provided with a Chinese character "middle" shaped groove, the Chinese character "middle" shaped groove is matched with the shape of the existing mofti's dropper, the mofti's dropper can be buckled into the Chinese character "middle" shaped groove, the side wall of the Chinese character "middle" shaped groove is provided with an infrared sensor, and the infrared sensor is used for detecting the liquid drip speed in the mofti's dropper. The front surface of the controller is provided with a display screen and a Chinese character "I" shaped groove, the display screen is electrically connected between the infrared sensor, and the display screen can display the infusion drip speed value. The Chinese character "I" shaped groove is matched with the shape of the existing infusion tube, the infusion tube can be buckled into the Chinese character "I" shaped groove, and the side wall of the Chinese character "I" shaped groove is provided with a pipe adjusting part for adjusting the infusion drip speed.

[0007] Compared with the prior art, the infusion drip speed control assembly adopting the above technical solutions has the following beneficial effects:

[0008] I. The infusion drip speed control assembly of the utility model, the detector and the controller are respectively clamped on the existing morfi drip tube and the existing infusion tube, the detector detects the liquid drip speed in the morfi drip tube through the infrared sensor, the controller adjusts the infusion drip speed through the pipe pressing piece, and the current infusion drip speed value is displayed on the display screen: if the interval time between two drops is 2 seconds, "30d / min" is displayed for medical staff to check, the infusion drip speed can be accurately controlled according to the requirement. Moreover, the detector and the controller are small in size and small in space occupation.

[0009] II. In the preferred scheme, since the outer diameter of the existing morfi drip tube body is larger than the outer diameter of the two end tube mouths, and the Chinese character-shaped groove is matched with the shape of the existing morfi drip tube, the two end tube grooves limit the morfi drip tube body, so the detector will not accidentally slide off the morfi drip tube; the controller is clamped on the existing infusion tube through the Chinese character-shaped groove on one side, and the infusion tube body is pressed by the pressing block, and the controller is pulled by the detector through the pipe on the other side, so the controller will not tilt and will not accidentally slide off the infusion tube.

[0010] Preferably, the pipe pressing piece comprises a horizontal rod and a square pressing block, the pressing block is telescopic on the side wall of the Chinese character-shaped groove, the outer end of the pressing block is pressed on the infusion tube body in the Chinese character-shaped groove, the inner end face of the pressing block is provided with a threaded hole, the horizontal rod is rotatably connected in the controller, the inner end of the horizontal rod is provided with external threads and is screw-connected in the threaded hole, and the outer end of the horizontal rod is provided with a knob and is exposed on the side surface of the controller; when the knob is forwardly rotated, the inner end of the horizontal rod is rotated out of the threaded hole, the pressing block is driven to extend out, and the pressing block is pressed towards the infusion tube in the Chinese character-shaped groove; when the knob is reversely rotated, the inner end of the horizontal rod is rotated into the threaded hole, the pressing block is driven to retract in, and the pressing block is loosened on the infusion tube in the Chinese character-shaped groove. The square pressing block has a long pressing surface length on the infusion tube body, and the infusion drip speed is more easily controlled.

[0011] Preferably, a rotatable gear is arranged in the controller, the gear is driven to rotate by a motor, the gear is engaged with the tooth groove on the outer circumferential surface of the horizontal rod, the display screen is a touch screen, the display screen interface is provided with an acceleration key for increasing the liquid drip speed and a deceleration key for reducing the liquid drip speed, and the display screen is electrically connected with the gear motor. Medical staff sets the infusion drip speed through the acceleration key and the deceleration key, and the intelligent control is more convenient.

[0012] Preferably, the utility model further comprises a pipe, the pipe is made of silica gel hose, the two ends of the pipe are respectively fixed on the outer wall of the detector and the outer wall of the controller, the pipe is arranged on the side away from the Chinese character-shaped groove, a wire is arranged in the pipe, and the display screen and the infrared sensor are connected through the wire. The pipe not only enhances the fixation on the position of the controller, but also protects the wire.

[0013] Preferably, the front surface of the controller is provided with a reversible cover, and the cover covers the Chinese character-shaped groove. After the cover is covered, the infusion tube can be prevented from being separated from the Chinese character-shaped groove.

[0014] Preferably, the front of the controller is provided with a recess and a movable lock cover push button, the side wall of the recess is provided with a retractable lock block, the lock block is fixed opposite to the lock cover push button, the moving direction of the lock cover push button is the same as the retracting direction of the lock block, the cover closing surface is provided with a protrusion, the side of the protrusion is provided with a lock slot, the protrusion can be placed into the recess, the lock block can be extended and placed into the lock slot; when the lock cover push button moves forward, the lock block extends and is placed into the lock slot, so that the cover is locked with the controller; when the lock cover push button moves reversely, the lock block retracts and is out of the lock slot, so that the cover is unlocked with the controller. The cover is locked and unlocked with the controller by moving the lock cover push button, which is simple to operate; after the cover is locked with the controller, the cover is prevented from being accidentally turned up.

[0015] Preferably, the Chinese character-shaped slot includes a thick tube slot and two thin tube slots, the two thin tube slots are respectively arranged at two ends of the thick tube slot, the Morax's dropper body is buckled into the thick tube slot, the two end tube openings of the Morax's dropper are respectively buckled into the two thin tube slots, the side wall of the thin tube slot opening is provided with a retractable clamping block, the front of the detector is provided with a movable clamping tube push button, the clamping tube push button is fixed opposite to the clamping block, the moving direction of the clamping tube push button is the same as the retracting direction of the clamping block, when the clamping tube push button moves to make the clamping block extend, the Morax's dropper opening is limited in the thin tube slot. The clamping block is controlled to extend and retract by moving the clamping tube push button, which is simple to operate; after the clamping block extends, the Morax's dropper opening is limited, so that the Morax's dropper is prevented from being separated from the Chinese character-shaped slot opening.

[0016] Preferably, the back of the detector is provided with a positioning slot, the slot surface of the positioning slot is matched with the back surface shape of the controller, the back surface of the controller is provided with a magnet, the back surface of the controller can be buckled into the positioning slot and magnetically connected through the magnet. When not in use, medical staff can buckle the back surface of the controller into the positioning slot, the controller is positioned through the positioning slot, the controller and the detector are fixed through the magnet, the occupied space is reduced, and storage is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view of the infusion drip speed control assembly in Example 1.

[0018] Figure 2 It is a structural schematic view of the infusion drip speed control assembly in Example 1.

[0019] Figure 3 It is a structural schematic view of the controller after the cover is turned up in Example 1.

[0020] Figure 4 It is a structural schematic view of the tube pressing piece in Example 1.

[0021] Figure 5 It is a sectional view of the tube pressing piece in the controller in Example 1.

[0022] Figure 6 It is a structural schematic view of the detector in Example 1.

[0023] Figure 7 The structure diagram of the back of the controller in example 1 is shown in the figure.

[0024] Figure 8 The structure diagram of the back of the detector in example 1 is shown in the figure.

[0025] Figure 9 The structure diagram of the back of the controller in example 1 is shown in the figure.

[0026] Figure 10 The block diagram of the electric connection between the infrared sensor and the display screen in example 1 is shown in the figure.

[0027] Figure 11 The structure diagram of the engagement between the gear and the transverse rod tooth slot in example 2 is shown in the figure.

[0028] Reference signs: 1, detector; 10, middle-shaped slot; 11, infrared sensor; 12, clamping block; 13, clamping tube push button; 14, positioning slot; 2, controller; 20, I-shaped slot; 21, display screen; 22, locking block; 23, locking cover push button; 24, magnet; 3, pressing tube; 31, transverse rod; 32, pressing block; 33, threaded port; 34, knob; 35, gear; 36, tooth slot; 4, cover; 40, groove; 41, protrusion; 42, locking slot; 5, pulling tube; 6, Moore's dropper; 61, infusion tube. DETAILED DESCRIPTION

[0029] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0030] Example 1

[0031] As Figures 1 to 10The infusion dripping speed control assembly shown in the figure comprises a detector 1 and a controller 2. The detector 1 front is provided with a Chinese character shaped groove 10. The Chinese character shaped groove 10 is adapted to the external shape of existing Murphy's dropper 6. Murphy's dropper 6 can be buckled in the Chinese character shaped groove 10: the Chinese character shaped groove 10 comprises a thick tube groove and two thin tube grooves. The two thin tube grooves are respectively located at the thick tube groove two ends. The tube bodies of Murphy's dropper 6 are buckled in the thick tube groove. The tube openings at both ends of Murphy's dropper 6 are buckled in the two thin tube grooves. The sidewalls of the Chinese character shaped groove 10 are provided with an infrared sensor 11. The infrared sensor 11 is used to detect the dripping speed of liquid in the Murphy's dropper 6. The controller 2 front is provided with a display screen 21 and a Chinese character shaped groove 20. The display screen 21 is electrically connected with the infrared sensor 11. The display screen 21 can display the infusion dripping speed numerical value. The U-shaped groove 20 is compatible with the shape of an existing infusion tube 61, allowing the infusion tube 61 to be snapped into the U-shaped groove 20. A pressure pipe fitting 3 is provided on the sidewall of the U-shaped groove 20 for adjusting the drip rate of the infusion. The detector 1 and controller 2 are respectively attached to the existing Murphy's dropper 6 and the existing infusion tube 61. The detector 1 detects the drip rate of the liquid in the Murphy's dropper 6 using an infrared sensor 11. The controller 2 adjusts the drip rate of the infusion using the pressure pipe fitting 3 and displays the current drip rate on the display 21. If the interval between two drops is 2 seconds, "30 d / min" will be displayed for medical personnel to view, allowing precise control of the drip rate according to needs. Furthermore, the detector 1 and controller 2 are relatively small in size, taking up little space.

[0032] Reference Figures 3 to 5 The tube pressing member 3 includes a cross bar 31 and a square pressing block 32. The pressing block 32 is retractable on the side wall of the I-shaped groove 20. The outer end of the pressing block 32 is pressed on the body of the infusion tube 61 in the I-shaped groove 20. The inner end surface of the pressing block 32 is provided with a threaded opening 33. The cross bar 31 is rotatably connected to the controller 2. The inner end of the cross bar 31 has an external thread and is threadedly connected to the threaded opening 33. The outer end of the cross bar 31 is provided with a knob 34 and is exposed on the side of the controller 2: when the knob 34 is rotated forward, the inner end of the cross bar 31 is screwed out of the threaded opening 33, driving the pressing block 32 to extend, so that the pressing block 32 is pressed against the infusion tube 61 in the I-shaped groove 20; when the knob 34 is rotated backward, the inner end of the cross bar 31 is screwed into the threaded opening 33, driving the pressing block 32 to retract, so that the pressing block 32 releases the infusion tube 61 in the I-shaped groove 20. The square pressing block 32 has a longer pressure surface on the infusion tube 61, making it easier to control the infusion dripping rate.

[0033] Reference Figure 1 and Figure 2The utility model also includes the rubbish pipe, the rubbish pipe adopts silica gel hose, and the both ends of the rubbish pipe are fixed on the outer wall of detector 1 and the outer wall of controller 2 respectively, and the pull pipe 5 is arranged on the side far from the Chinese character I-shaped groove 20, and the pull pipe 5 is provided with electric wire, and the display screen 21 and infrared sensor 11 are connected through electric wire. Since the outer diameter of the existing morrific pipette 6 pipe body is greater than the outer diameter of the both ends of the pipe, and the Chinese character I-shaped groove 10 is matched with the shape of the existing morrific pipette 6, the both ends of the thin tube groove limit the morrific pipette 6 pipe body, so that the detector 1 will not accidentally slide off the morrific pipette 6; the controller 2 is clamped on the existing infusion tube 61 through the Chinese character I-shaped groove 20 on one side, and the infusion tube 61 pipe body is pressed by the pressing block 32, and the controller 2 is pulled by the detector 1 through the pull pipe 5 on the other side, so that the controller 2 will not tilt and will not accidentally slide off the infusion tube 61. The rubbish pipe not only enhances the fixation of the position of the controller 2, but also protects the electric wire.

[0034] Referring to Figure 2 And Figure 3 The front of the controller 2 is provided with a reversible cover 4, and the cover 4 covers the slot of the Chinese character I-shaped groove 20. After the cover 4 is covered, the infusion tube 61 can be prevented from being separated from the slot of the Chinese character I-shaped groove 20.

[0035] The front of the controller 2 is provided with a recess 40 and a movable lock cover push button 23, the side wall of the recess 40 is provided with a retractable lock block 22, the lock block 22 is fixed opposite to the lock cover push button 23, the moving direction of the lock cover push button 23 is the same as the retracting direction of the lock block 22, the cover 4 is provided with a protrusion 41 on the covering surface, the side of the protrusion 41 is provided with a lock groove 42, the protrusion 41 can be placed into the recess 40, and the lock block 22 can be extended and placed into the lock groove 42; when the lock cover push button 23 moves forward, the lock block 22 extends and is placed into the lock groove 42, so that the cover 4 is locked with the controller 2; when the lock cover push button 23 moves reversely, the lock block 22 retracts and is separated from the lock groove 42, so that the cover 4 is unlocked with the controller 2. The cover 4 and the controller 2 are locked and unlocked by moving the lock cover push button 23, and the operation is simple; after the cover 4 and the controller 2 are locked, the cover 4 is prevented from being accidentally opened.

[0036] Referring to Figure 6 The side wall of the slot of the thin tube groove is provided with a retractable clamping block 12, and the front of the detector 1 is provided with a movable clamping pipe push button 13, the clamping pipe push button 13 is fixed opposite to the clamping block 12, and the moving direction of the clamping pipe push button 13 is the same as the retracting direction of the clamping block 12; when the clamping pipe push button 13 moves and the clamping block 12 extends, the pipe opening of the morrific pipette 6 is limited in the thin tube groove. The clamping block 12 is controlled to retract and extend by moving the clamping pipe push button 13, and the operation is simple; after the clamping block 12 extends, the pipe opening of the morrific pipette 6 is limited, and the morrific pipette 6 is prevented from being separated from the slot of the Chinese character I-shaped groove 10.

[0037] Referring to Figures 7 to 9The back of the detector 1 is provided with a positioning groove 14, the surface of which matches the shape of the back of the controller 2. A magnet 24 is provided on the back of the controller 2, and the back of the controller 2 can be snapped into the positioning groove 14 and magnetically connected via the magnet 24. When not in use, medical staff can snap the back of the controller 2 into the positioning groove 14, and the positioning groove 14 can be used to position the controller 2, and the magnet 24 can be used to fix the controller 2 to the detector 1, reducing the space occupied and facilitating storage.

[0038] Example 2

[0039] like Figure 11 The infusion drip rate control assembly shown in this embodiment is based on embodiment 1. The difference between this embodiment and embodiment 1 is as follows:

[0040] The controller 2 includes a rotatable gear 35, which is driven by a motor and meshes with a tooth groove 36 on the outer peripheral surface of the crossbar 31. The display screen 21 is a touch screen with an acceleration key for increasing the dripping rate and a deceleration key for decreasing the dripping rate. The display screen 21 is electrically connected to the motor 35. Medical staff use the acceleration and deceleration keys to set the infusion drip rate, making intelligent control more convenient.

[0041] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An infusion drip rate control assembly, comprising: The application relates to a drip speed detector and controller, which comprises a detector (1) and a controller (2), the detector (1) is provided with a Chinese character-shaped groove (10) on the front side, the Chinese character-shaped groove (10) is matched with the shape of an existing morphine dropper (6), the morphine dropper (6) can be buckled into the Chinese character-shaped groove (10), and the side wall of the Chinese character-shaped groove (10) is provided with an infrared sensor (11) for detecting the liquid drop speed in the morphine dropper (6), the controller (2) is provided with a display screen (21) and a Chinese character-shaped groove (20) on the front side, the display screen (21) is electrically connected with the infrared sensor (11), and the display screen (21) can display the infusion drop speed value, the Chinese character-shaped groove (20) is matched with the shape of an existing infusion tube (61), the infusion tube (61) can be buckled into the Chinese character-shaped groove (20), and the side wall of the Chinese character-shaped groove (20) is provided with a tube pressing piece (3) for adjusting the infusion drop speed.

2. The infusion drop rate control assembly of claim 1, wherein: the tube pressing piece (3) comprises a horizontal rod (31) and a square pressing block (32), the pressing block (32) is telescopic on the side wall of the Chinese character-shaped groove (20), the outer end of the pressing block (32) is pressed on the infusion tube (61) in the Chinese character-shaped groove (20), the inner end of the pressing block (32) is provided with a threaded hole (33), the horizontal rod (31) is rotatably connected in the controller (2), the inner end of the horizontal rod (31) is provided with external threads and is screw-connected in the threaded hole (33), and the outer end of the horizontal rod (31) is provided with a knob (34) and is exposed on the side of the controller (2); when the knob (34) is forwardly rotated, the inner end of the horizontal rod (31) is rotated out of the threaded hole (33), drives the pressing block (32) to extend, and makes the pressing block (32) press the infusion tube (61) in the Chinese character-shaped groove (20); when the knob (34) is reversely rotated, the inner end of the horizontal rod (31) is rotated into the threaded hole (33), drives the pressing block (32) to retract, and makes the pressing block (32) release the infusion tube (61) in the Chinese character-shaped groove (20).

3. The infusion drop rate control assembly of claim 2, wherein: a rotatable gear (35) is arranged in the controller (2), the gear (35) is driven to rotate by a motor, the gear (35) is engaged with the tooth groove (36) on the outer circumferential surface of the horizontal rod (31), the display screen (21) is a touch screen, the interface of the display screen (21) is provided with an acceleration key for increasing the liquid drop speed and a deceleration key for reducing the liquid drop speed, and the display screen (21) is electrically connected with the motor of the gear (35).

4. The infusion drop rate control assembly of claim 1, wherein: a pull tube (5) is further arranged, the two ends of the pull tube (5) are fixed to the outer walls of the detector (1) and the controller (2) respectively, the pull tube (5) is arranged on the side away from the Chinese character-shaped groove (20), and the pull tube (5) is provided with an electric wire, the display screen (21) and the infrared sensor (11) are connected through the electric wire.

5. The infusion drop rate control assembly of claim 1, wherein: the front side of the controller (2) is provided with a reversible cover (4), and the cover (4) covers the slot of the Chinese character-shaped groove (20).

6. The infusion drop rate control assembly of claim 5, wherein: The controller (2) is provided with a recess (40) and a movable lock cover push button (23) on the front side, the side wall of the recess (40) is provided with a telescopic lock block (22), the lock block (22) is fixed opposite to the lock cover push button (23), the moving direction of the lock cover push button (23) is the same as the telescopic direction of the lock block (22), the cover (4) is provided with a protrusion (41) on the covering surface, the side surface of the protrusion (41) is provided with a lock slot (42), the protrusion (41) can be placed into the recess (40), the lock block (22) can be telescoped and placed into the lock slot (42), when the lock cover push button (23) moves forward, the lock block (22) is telescoped and placed into the lock slot (42), so that the cover (4) is locked with the controller (2), when the lock cover push button (23) moves reversely, the lock block (22) is telescoped and placed out of the lock slot (42), so that the cover (4) is unlocked with the controller (2).

7. The infusion drop rate control assembly of claim 1, wherein: The middle-shaped slot (10) includes a thick tube slot and two thin tube slots, the thick tube slot is provided with a Murphy's dropper (6), the two end tube openings of the Murphy's dropper (6) are respectively buckled into the two thin tube slots, the side wall of the thin tube slot is provided with a telescopic clamping block (12), the detector (1) is provided with a movable clamping tube push button (13) on the front side, the clamping tube push button (13) is fixed opposite to the clamping block (12), the moving direction of the clamping tube push button (13) is the same as the telescopic direction of the clamping block (12), when the clamping tube push button (13) moves to make the clamping block (12) telescope, the tube opening of the Murphy's dropper (6) is limited in the thin tube slot.

8. The infusion drop rate control assembly of claim 1, wherein: The back surface of the detector (1) is provided with a positioning slot (14), the slot surface of the positioning slot (14) is matched with the back surface shape of the controller (2), the back surface of the controller (2) is provided with a magnet (24), the back surface of the controller (2) can be buckled into the positioning slot (14) and connected by the magnetic attraction of the magnet (24).