An intelligent infusion controller

Abstract

The present invention relates to the field of infusion control, specifically an intelligent infusion controller. It includes a shell, a clamping mechanism, a locking assembly, an infrared liquid level detector and a central controller; a card seat is provided on the inner side of the shell, and a mounting cavity is provided on the inner side of the card seat, and the card seat has a first pipe groove, a pot groove and a second pipe groove that are connected in sequence from top to bottom; the clamping mechanism includes two groups of first clamping assemblies symmetrically distributed at the first pipe groove and two groups of second clamping assemblies symmetrically distributed at the pot groove; the locking assembly includes an iron block provided on the first movable plate and an electromagnet provided on the first fixed plate; the central controller is communicatively connected to the infrared liquid level detector. When the liquid level detected by the infrared liquid level detector is lower than the preset liquid level value, the central controller controls the electromagnet to be energized, the electromagnet attracts the iron block, and the two first clamping platforms squeeze the dropper into a closed state from both sides. The present invention can automatically lock the dropper when the liquid level in the drip pot is too low to prevent blood from returning.

Description

Technical Field

[0001] The present invention relates to the field of infusion control, and in particular to an intelligent infusion controller. Background Art

[0002] During clinical treatment, many patients often need infusion therapy. Therefore, a large number of infusion sets are needed in clinical treatment. However, if the infusion set is not turned off in time after the liquid is dripped out, blood backflow is likely to occur.

[0003] Chinese patent publication number CN114247006B discloses an infusion set that automatically stops liquid and prevents blood backflow, comprising a liquid seal tank device, a bottle stopper puncture device, a vent valve, a drip chamber, a spiral connector, an intravenous infusion needle, a flow regulator, and an infusion hose. The liquid seal tank device automatically stores liquid medication within its cavity, effectively utilizing the static pressure and sealing effect of the liquid medication within the cavity to prevent air from entering the human vein after the infusion bottle is completely infused. This ensures that the static pressure of the liquid within the infusion bottle is zero, atmospheric pressure is maintained, and the static pressure of the liquid within the cavity and the venous pressure within the infusion hose wall remain constant, thus achieving the automatic stoppage and blood backflow prevention functions of the infusion set.

[0004] However, the above-mentioned infusion set is an improvement on the existing conventional infusion set, and the conventional infusion set currently in widespread use does not have the function of preventing blood backflow. Summary of the Invention

[0005] The present invention aims to solve the problems existing in the background technology and propose an intelligent infusion controller which can automatically lock the dropper when the liquid level in the drip pot is too low to prevent blood backflow.

[0006] The technical solution of the present invention is an intelligent infusion controller, comprising a shell, a clamping mechanism, a locking assembly, an infrared liquid level detector and a central controller; a card seat is provided on the inner side of the shell, and a mounting cavity is provided on the inner side of the card seat, and the card seat has a first pipe groove, a pot groove and a second pipe groove which are sequentially connected from top to bottom, and a plurality of through holes are arranged side by side in the vertical direction at the bottom of the pot groove; the clamping mechanism comprises two groups of first clamping assemblies symmetrically distributed at the first pipe groove and two groups of second clamping assemblies symmetrically distributed at the pot groove, the first clamping assembly comprises a first fixing plate provided on the inner wall of the card seat, a sliding rod slidably provided on the first fixing plate, and a plurality of through holes are provided on the bottom of the pot groove; ... A first clamping platform and a first movable plate are connected to both ends of the sliding rod, and a first spring is sleeved on the outer circumference of the sliding rod and connected to the first clamping platform and the first fixed plate at both ends respectively; two groups of locking components are symmetrically arranged, including an iron block arranged on the first movable plate and an electromagnet arranged on the first fixed plate; the infrared liquid level detector is arranged in the installation cavity of the card holder, and the detection direction is toward the through hole; the central controller is communicatively connected with the infrared liquid level detector. When the liquid level detected by the infrared liquid level detector is lower than the preset liquid level value, the central controller controls the electromagnet to be energized, the electromagnet attracts the iron block, and the two first clamping platforms squeeze the dropper to a closed state from both sides.

[0007] Preferably, a speaker is provided on the card seat, and a detection port is provided at the bottom of the pot groove, the detection port is located above the through hole, an infrared detector and a timing module are provided in the mounting cavity of the card seat, the infrared detector faces the detection port, the infrared detector, the central controller and the timing module are communicated and connected in sequence, the timing module is used to count the time interval t between the dripping of two adjacent drops of liquid, the central controller calculates the drop rate v=60 / t, the unit is drops / minute, when the drip rate exceeds the preset drip rate range, the central controller controls the speaker to alarm.

[0008] Preferably, the second clamping assembly includes a second fixed plate arranged on the inner wall of the base, a slide cylinder slidably arranged on the second fixed plate, a second clamping platform and a second movable plate respectively connected to the two ends of the slide cylinder, and a second spring arranged on the outer peripheral side of the slide cylinder and connected to the second clamping platform and the second fixed plate at both ends respectively.

[0009] Preferably, the top surface of the first clamping platform is a first inclined surface that gradually tilts toward the bottom of the first tube groove, and the top surface of the second clamping platform is a second inclined surface that gradually tilts toward the bottom of the pot groove.

[0010] Preferably, the inner side of the second clamp is hollow and filled with heat-conducting liquid. The second clamp has an opening connected to the slide. The second clamp and the inner side of the slide are provided with an electric heating wire. The end of the electric heating wire has a first conductive connector provided at the outer end of the slide. A battery and a conductive component are provided in the mounting cavity of the holder. The battery is electrically connected to the conductive component. The conductive component includes a second conductive connector facing the first conductive connector.

[0011] Preferably, the conductive component also includes a fixed frame arranged on the inner wall of the card seat, two connecting rods distributed in parallel and one end of which is rotatably arranged on the fixed frame, a swing rod rotatably connected to the other ends of the two connecting rods, and an elastic component for elastically tensioning one connecting rod, the swing rod is parallel to the fixed frame, and the second conductive connector is arranged on the swing rod.

[0012] Preferably, the elastic component includes a connecting platform arranged on a connecting rod, an arc rod and an arc tube distributed around the central axis of rotation of the connecting rod on the fixed frame, and a third spring sleeved on the outer circumference of the arc rod and connected to the connecting platform and the arc tube at both ends respectively. The arc rod is slidably arranged on the arc tube, the outer end of the arc rod is connected to the connecting platform, and the outer end of the arc tube is connected to the fixed frame.

[0013] Preferably, a push rod is rotatably provided in the mounting cavity of the card holder, one end of the push rod is located on the side of the first movable plate facing the first fixed plate, and the other end is abutted against a connecting rod. When the electromagnet is energized, the first movable plate pushes one end of the push rod, and the other end of the push rod pushes the connecting rod outward, and the second conductive connector is separated from the first conductive connector.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects:

[0015] This invention is applicable to a large number of existing conventional infusion devices, automatically locking the dropper when the liquid level in the drip pot is too low, preventing blood backflow. When the infrared liquid level detector detects that the liquid level is below a preset value, the electromagnet is energized, attracting the iron block and driving the first movable plate to move. The two first clamping platforms clamp the dropper into a locked state, preventing the dropper from being ventilated and bleeding back into the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the overall structure of an embodiment of the present invention;

[0017] Figure 2 Schematic diagram of the distribution of the first clamping platform and the second clamping platform on the clamping base;

[0018] Figure 3 A partial structural cross-sectional view of an embodiment of the present invention;

[0019] Figure 4 for Figure 3 A magnified view of the structure at point A;

[0020] Figure 5 A cross-sectional view of the local structure of the electric heating wire when it is energized or de-energized;

[0021] Figure 6 for Figure 5 A magnified view of the structure at point B.

[0022] Figure numerals: 1, rear shell; 2, front shell; 3, card seat; 31, first tube slot; 32, pot slot; 321, through hole; 33, second tube slot; 34, speaker; 35, detection port; 4, first clamping platform; 5, second clamping platform; 6, slide rod; 61, first spring; 7, first movable plate; 8, first fixed plate; 9, iron block; 10, electromagnet; 11, second spring; 12, slide cylinder; 13, second movable plate; 14, second fixed plate; 15, electric heating wire; 16, first conductive joint; 17, second conductive joint; 18, swing rod; 19, connecting rod; 20, fixing frame; 21, connecting platform; 22, arc rod; 23, arc cylinder; 24, third spring; 25, push rod. DETAILED DESCRIPTION

[0023] Example 1, as Figures 1-6 As shown, the intelligent infusion controller proposed in this embodiment includes a housing, a clamping mechanism, a locking assembly, an infrared liquid level detector and a central controller.

[0024] A holder 3 is provided on the inside of the housing, which has a mounting cavity. The holder 3 has a first tube groove 31, a pot groove 32, and a second tube groove 33, which are connected in sequence from top to bottom. The first tube groove 31 and the second tube groove 33 are used to snap into the dropper (hose) of an existing conventional infusion device, and the pot groove 32 is used to snap into the drip pot of the infusion device. A plurality of through holes 321 are arranged side by side in the vertical direction at the bottom of the pot groove 32. The housing includes a rear shell 1 and a front shell 2 that is rotatably mounted on the rear shell 1. After the dropper and drip pot of the infusion device are snapped into place, the front shell 2 is rotated and buckled onto the rear shell 1. The front shell 2 and the rear shell 1 are snap-connected. The front shell 2 and the rear shell 1 have semicircular channels at both the top and bottom ends for the dropper to pass through, so that the dropper will not be blocked when closed.

[0025] The clamping mechanism comprises two sets of first clamping assemblies symmetrically distributed around the first tube slot 31 and two sets of second clamping assemblies symmetrically distributed around the pot slot 32. The first clamping assembly comprises a first fixed plate 8 mounted on the inner wall of the holder 3, a slide bar 6 slidingly mounted on the first fixed plate 8, a first clamping platform 4 and a first movable plate 7 connected to the ends of the slide bar 6, and a first spring 61 sleeved around the outer periphery of the slide bar 6, with its ends connected to the first clamping platform 4 and the first fixed plate 8, respectively. After the dropper is inserted into the first tube slot 31, it is pushed downward until it is lodged between the two first clamping platforms 4. This compresses the first spring 61, clamping the dropper in place while still ensuring unobstructed dripping.

[0026] The second clamping assembly includes a second fixed plate 14 mounted on the inner wall of the holder 3, a slide 12 slidably mounted on the second fixed plate 14, a second clamping platform 5 and a second movable plate 13 connected to the ends of the slide 12, and a second spring 11 sleeved around the outer periphery of the slide 12, with both ends connected to the second clamping platform 5 and the second fixed plate 14. After the drip pot is inserted into the pot groove 32, the two second clamping platforms 5 can be pushed outward, compressing the second spring 11. The two second clamping platforms 5 clamp the drip pot from both sides, stabilizing the drip pot's position. This allows for more accurate detection data when using an infrared liquid detector to detect the liquid level in the drip pot.

[0027] The top surface of the first clamping platform 4 is a first slope that gradually slopes toward the bottom of the first tube groove 31, and the top surface of the second clamping platform 5 is a second slope that gradually slopes toward the bottom of the pot groove 32. The first and second slopes guide the clamping process of the dropper and drip pot, improving the smoothness of clamping the infusion set.

[0028] The locking components are symmetrically arranged in two groups, including an iron block 9 arranged on the first movable plate 7 and an electromagnet 10 arranged on the first fixed plate 8, with the magnetic end of the electromagnet 10 facing the iron block 9. The two groups of locking components correspond to the two groups of first clamping components respectively.

[0029] The infrared liquid level detector is arranged in the mounting cavity of the card holder 3, with the detection direction toward the through hole 321, and detects the liquid level in the drip pot through the through hole 321. The specific detection principle is to utilize the different infrared characteristics of different materials. The infrared characteristics of the lower area with liquid and the upper area without liquid in the drip pot are different. This principle is used to detect the liquid level.

[0030] The central controller is in communication with the infrared liquid level detector. When the liquid level detected by the infrared liquid level detector is lower than the preset liquid level value, the central controller controls the electromagnet 10 to be energized. The electromagnet 10 attracts the iron block 9, and the two first clamps 4 squeeze the dropper from both sides to a closed state. When the electromagnet 10 is not energized, the two first clamps 4 only clamp the two sides of the dropper, and the dropper remains unobstructed. However, after the electromagnet 10 is energized, it can attract the iron block 9, which drives the first movable plate 7 to move. The first movable plate 7 drives the first clamp 4 inward via the slide rod 6. The two first clamps 4 clamp the dropper from both sides and squeeze the dropper into a closed and airtight state. At this time, outside air will not enter the drip pot through the upper dropper, and the patient will not experience blood backflow.

[0031] When considering the dripping speed, in order to alarm when the dripping speed is too fast or too slow, a loudspeaker 34 is provided on the deck 3, and a detection port 35 is provided at the bottom of the pot groove 32. The detection port 35 is located above the through hole 321. An infrared detector and a timing module are provided in the mounting cavity of the deck 3. The infrared detector faces the detection port 35. The infrared detector, the central controller and the timing module are sequentially connected in communication. The timing module is used to count the dripping time interval t between two adjacent drops of liquid. The central controller calculates the dripping speed v=60 / t, in drops / minute. When the dripping speed exceeds the preset dripping speed range, the central controller controls the loudspeaker 34 to alarm. If the actual dripping speed obtained is greater than the maximum value of the preset dripping speed range, a voice alarm of "dripping speed too fast" is issued; if the actual dripping speed obtained is less than the minimum value of the preset dripping speed range, a voice alarm of "dripping speed too slow" is issued. In addition, when the liquid level in the dripping pot is too low and the two first clamping platforms 4 seal the dropper, the central controller can also control the loudspeaker 34 to alarm, reminding medical staff to check whether the dripping is complete.

[0032] This embodiment is applicable to the drip monitoring and alarm system of a large number of existing conventional infusion devices. It automatically locks the dropper when the liquid level in the drip pot is too low, preventing blood backflow. When the infrared liquid level detector detects that the liquid level is below a preset value, the central controller energizes the electromagnet 10. The electromagnet 10 attracts the iron block 9, driving the first movable plate 7, which in turn drives the first clamping platform 4. The two first clamping platforms 4 clamp the dropper into a locked state, preventing the dropper from being ventilated and preventing blood backflow to the patient, thus ensuring infusion safety.

[0033] Example 2, as Figures 1-6 As shown, the present embodiment proposes an intelligent infusion controller. Compared with the first embodiment, in the present embodiment, the inner side of the second clamping platform 5 is hollow and filled with a heat-conducting liquid. The heat-conducting liquid can be purified water or other liquids that can effectively conduct heat, such as the liquid in an existing electric hot water bag. The liquid contains electrolytes (such as sodium chloride), which can enhance the conductivity of water and make heating more uniform and efficient. It also contains preservatives (such as sodium benzoate): it can prevent the growth of microorganisms in the water and extend the service life of the liquid.

[0034] The second clamping platform 5 has an opening connected to the slide 12. An electric heating wire 15 is provided on the inside of the second clamping platform 5 and the slide 12. The end of the electric heating wire 15 has a first conductive connector 16 provided on the outer end of the slide 12. A battery and a conductive component are provided in the mounting cavity of the holder 3. The battery is electrically connected to the conductive component. The conductive component includes a second conductive connector 17 facing the first conductive connector 16. When the drip pot is not clamped by the second clamping platform 5, the second conductive connector 17 faces the first conductive connector 16. The second conductive connector 17 is electrically connected to the battery. When the first conductive connector 16 and the second conductive connector 17 are in contact, the electric heating wire 15 is energized to heat the heat-conducting liquid on the inside of the second clamping platform 5. The heat is transferred to the liquid in the drip pot through the second clamping platform 5, which assists in heating the liquid and improves the comfort of the patient during infusion.

[0035] like Figure 3 、 Figure 5 and Figure 6 As shown, the conductive assembly further includes a fixing frame 20 disposed on the inner wall of the card holder 3, two parallel connecting rods 19 each rotatably mounted on the fixing frame 20 at one end, a swinging rod 18 rotatably connected to the other ends of the two connecting rods 19, and an elastic assembly for elastically tensioning one of the connecting rods 19. The swinging rod 18 is parallel to the fixing frame 20, and the second conductive contact 17 is disposed on the swinging rod 18. The elastic assembly can tension the connecting rod 19 so that the second conductive contact 17 can be abutted by the first conductive contact 16.

[0036] like Figure 5 As shown, the elastic assembly includes a connecting platform 21 disposed on a connecting rod 19, an arcuate rod 22 and an arcuate cylinder 23 distributed around the central axis of rotation of the connecting rod 19 on the fixed frame 20, and a third spring 24 sleeved around the outer circumference of the arcuate rod 22, with its ends respectively connected to the connecting platform 21 and the arcuate cylinder 23. The arcuate rod 22 is slidably disposed on the arcuate cylinder 23, with its outer end connected to the connecting platform 21, and its outer end connected to the fixed frame 20. The third spring 24 can tension the connecting platform 21, which is disposed on the connecting rod 19, thereby achieving tension on the connecting rod 19.

[0037] In this embodiment, when the second clamping platform 5 clamps the dripping pot, the second clamping platform 5 moves outward, the slide 12 and the first conductive joint 16 move outward, and the first conductive joint 16 contacts the second conductive joint 17 to conduct electricity, so that the electric heating wire 15 is used to heat the thermal liquid in the second clamping platform 5, thereby heating the liquid in the dripping pot and improving the patient's infusion comfort.

[0038] Example 3, as Figures 1-6As shown, an intelligent infusion controller proposed in this embodiment, compared with the second embodiment, in this embodiment, a push rod 25 is rotatably provided in the mounting cavity of the card holder 3, one end of the push rod 25 is located on the side of the first movable plate 7 facing the first fixed plate 8, and the other end is in contact with a connecting rod 19. When the electromagnet 10 is energized, the first movable plate 7 pushes one end of the push rod 25, and the other end of the push rod 25 pushes the connecting rod 19 outward, and the second conductive connector 17 is separated from the first conductive connector 16.

[0039] In this embodiment, when the liquid level in the drip pot is too low, the electromagnet 10 is energized, the first movable plate 7 moves inward, the first movable plate 7 pushes the push rod 25, the push rod 25 pushes the connecting rod 19 outward, the third spring 24 is compressed, the swing rod 18 rotates outward, the second conductive connector 17 breaks away from contact with the first conductive connector 16, the electric heating wire 15 is powered off, and the liquid heating stops, which is safer and energy-saving.

[0040] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. An intelligent infusion controller, characterized in that: include: The housing has a card seat (3) provided on the inner side thereof, the card seat (3) having a mounting cavity on the inner side thereof, the card seat (3) having a first pipe groove (31), a pot groove (32) and a second pipe groove (33) connected in sequence from top to bottom, and a plurality of through holes (321) arranged side by side in a vertical direction at the bottom of the pot groove (32); The clamping mechanism comprises two groups of first clamping assemblies symmetrically distributed at the first tube groove (31) and two groups of second clamping assemblies symmetrically distributed at the pot groove (32), wherein the first clamping assembly comprises a first fixed plate (8) arranged on the inner wall of the clamping seat (3), a slide rod (6) slidably arranged on the first fixed plate (8), a first clamping platform (4) and a first movable plate (7) respectively connected to both ends of the slide rod (6), and a first spring (61) sleeved on the outer periphery of the slide rod (6) and connected to the first clamping platform (4) and the first fixed plate (8) at both ends respectively; The locking assembly is symmetrically arranged in two groups, including an iron block (9) arranged on the first movable plate (7) and an electromagnet (10) arranged on the first fixed plate (8); An infrared liquid level detector is arranged in the mounting cavity of the card holder (3), with the detection direction facing the through hole (321); The central controller is connected to the infrared liquid level detector for communication. When the liquid level detected by the infrared liquid level detector is lower than a preset liquid level value, the central controller controls the electromagnet (10) to be energized, and the electromagnet (10) attracts the iron block (9), and the two first clamping platforms (4) squeeze the dropper from both sides to a closed state. The second clamping assembly includes a second clamping platform (5) and a slide (12), the inner side of the second clamping platform (5) is hollow and filled with heat-conducting liquid, the second clamping platform (5) has an opening connected to the slide (12), an electric heating wire (15) is provided on the inner side of the second clamping platform (5) and the slide (12), the end of the electric heating wire (15) has a first conductive connector (16) provided on the outer end of the slide (12), a battery and a conductive assembly are provided in the mounting cavity of the holder (3), the battery is electrically connected to the conductive assembly, and the conductive assembly includes a second conductive connector (17) facing the first conductive connector (16); The conductive component further includes a fixing frame (20) arranged on the inner wall of the card seat (3), two connecting rods (19) distributed in parallel and one end of each of which is rotatably arranged on the fixing frame (20), a swinging rod (18) rotatably connected to the other ends of the two connecting rods (19), and an elastic component for elastically tensioning one of the connecting rods (19), the swinging rod (18) being parallel to the fixing frame (20), and the second conductive connector (17) being arranged on the swinging rod (18); A push rod (25) is rotatably provided in the mounting cavity of the card holder (3), one end of the push rod (25) is located on the side of the first movable plate (7) facing the first fixed plate (8), and the other end is in contact with a connecting rod (19). When the electromagnet (10) is energized, the first movable plate (7) pushes one end of the push rod (25), and the other end of the push rod (25) pushes the connecting rod (19) outward, so that the second conductive connector (17) is separated from the first conductive connector (16).

2. The intelligent infusion controller according to claim 1, characterized in that: A speaker (34) is provided on the card seat (3), a detection port (35) is provided at the bottom of the pot groove (32), and the detection port (35) is located above the through hole (321). An infrared detector and a timing module are provided in the mounting cavity of the card seat (3), and the infrared detector faces the detection port (35). The infrared detector, the central controller and the timing module are sequentially connected in communication. The timing module is used to count the time interval t between the drops of two adjacent drops of liquid. The central controller calculates the drop rate v=60 / t, in units of drops / minute. When the drop rate exceeds a preset drop rate range, the central controller controls the speaker (34) to sound an alarm.

3. The intelligent infusion controller according to claim 1, characterized in that: The second clamping assembly further includes a second fixed plate (14) arranged on the inner wall of the clamping seat (3), a second movable plate (13) connected to the end of the slide cylinder (12), and a second spring (11) sleeved on the outer peripheral side of the slide cylinder (12) and connected at both ends to the second clamping platform (5) and the second fixed plate (14).

4. The intelligent infusion controller according to claim 3, characterized in that: The top surface of the first clamping platform (4) is a first inclined surface that gradually slopes toward the bottom of the first tube groove (31), and the top surface of the second clamping platform (5) is a second inclined surface that gradually slopes toward the bottom of the pot groove (32).

5. The intelligent infusion controller according to claim 1, characterized in that: The elastic component includes a connecting platform (21) arranged on a connecting rod (19), an arc rod (22) and an arc tube (23) distributed around the central axis of rotation of the connecting rod (19) on the fixed frame (20), and a third spring (24) sleeved on the outer periphery of the arc rod (22) and connected to the connecting platform (21) and the arc tube (23) at both ends, the arc rod (22) being slidably arranged on the arc tube (23), the outer end of the arc rod (22) being connected to the connecting platform (21), and the outer end of the arc tube (23) being connected to the fixed frame (20).

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