CN210844658U - An intravenous infusion set that can accurately adjust the number of drops - Google Patents

Abstract

The utility model discloses a vein infusion apparatus capable of accurately adjusting the number of drops, which comprises an air pressure bag, wherein the air pressure bag is connected with a conduit, the conduit is sequentially connected with a flow controller, a manual adjusting device and a needle head respectively, the flow controller is added in the infusion apparatus, a singlechip can automatically match out an optimal infusion speed interval by inputting the age and the physical sign condition of a patient in a condition input module, the automatic adjustment of the infusion speed is realized, the manual adjusting device is arranged, and the displayed infusion speed interval can also be used for reference; and the manual adjusting device is arranged to adjust the infusion speed, so that the potential safety hazard generated when the flow is in fault is avoided, and the intelligent, simple, humanized and precise infusion device has the characteristics of intelligence, simplicity, humanization and precision.

Description

An intravenous infusion set that can accurately adjust the number of drops

technical field

The utility model belongs to the technical field of medical appliances, in particular to an intravenous infusion set that can accurately adjust the number of drops.

Background technique

At present, most infusion sets in ordinary wards are composed of needles, needle tubes and rollers. When adjusting the number of drops, it is often necessary to manually adjust the rollers by nurses or escorts, which is very inconvenient to use; and people of different ages and physical conditions. In clinical practice, the dripping speed of the drug is different, and the accompanying staff or patients do not understand the common sense of pharmacology.

SUMMARY OF THE INVENTION

In order to overcome the above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide an intravenous infusion set that can accurately adjust the number of drops. Automatically match the best infusion speed range, which can automatically adjust the infusion speed, and is equipped with a manual adjustment button, and the displayed infusion speed range can also be used for reference; it is also equipped with a manual adjustment device to adjust the infusion speed, avoiding the need for a flow controller. The safety hazard generated when a fault occurs has the characteristics of intelligence, simplification, precision and humanization.

In order to achieve the above object, the technical scheme of the present utility model is achieved in this way:

An intravenous infusion set that can accurately adjust the number of drops, comprising a first catheter, the top of the first catheter is connected to one end of an air pressure bag, the other end of the air pressure bag is connected to an infusion bottle through the catheter, and the end of the first catheter is connected to a flow controller. The liquid input end of the flow controller is connected to the top end of the second conduit, and the flow controller controls the drop rate of the entire infusion set by adjusting the drop speed of the medicine in the inner conduit.

Preferably, the flow controller includes a power supply, a control panel, a stm32 single-chip microcomputer, a keyboard, a liquid crystal display, a manual adjustment button and a buzzer alarm; the keyboard is arranged below the control panel, and the liquid crystal display is arranged at the bottom of the control panel. Above, the manual adjustment buttons are symmetrically arranged in the middle of the LCD display and the keyboard, and the buzzer alarm is arranged on the upper right of the control panel.

Preferably, the manual adjustment button is divided into two buttons: increase the infusion rate button and decrease the infusion rate button.

Preferably, the signal output end of the keyboard is connected to the pin INPUT1 of the stm32 microcontroller through a wire, the signal output end of the manual adjustment button is connected to the pin INPUT2 of the stm32 microcontroller through a wire, and the signal input and output end of the liquid crystal display is connected to the pin INPUT2 of the stm32 microcontroller through a wire. The pin OUT1 of the stm32 microcontroller is connected, and the signal input end of the buzzer alarm is connected to the pin OUT2 of the stm32 microcontroller through a wire.

Preferably, the intravenous infusion set further comprises a manual adjustment device, the liquid input end of the manual adjustment device is connected to the end of the second conduit, the liquid output end of the manual adjustment device is connected to the top of the third conduit, and the end of the third conduit It is connected with the needle; the manual adjustment device includes an adjustment component and a display component, and the adjustment component and the display component are meshed with gears.

Preferably, the adjustment assembly includes a manual knob, a first gear, a screw rod and a ball valve, the manual knob is connected with the first gear, the first gear is connected with the screw rod, and the screw rod is connected with the ball valve; when adjusting, manually rotate The knob drives the first gear to rotate, and the first gear drives the screw and the ball valve to rotate to control the drop speed of the medicine.

Preferably, the display device includes a pointer, a dial, a second gear and a pointer adjustment knob, the pointer is fixedly connected to the pointer adjustment knob, and the pointer adjustment knob is connected to the second gear. When the manual knob is rotated, the manual knob is rotated to drive the The first gear rotates, and the first gear drives the second gear to rotate through the bite force, which drives the pointer to rotate on the dial.

Preferably, the scale interval of the dial is: 0d/m-60d/m, each grade is divided into 5 scale values, a total of 13 grades.

The beneficial effects of the present utility model:

Because of the intravenous infusion set that can accurately adjust the number of drops provided by the utility model, a flow controller is added to the infusion set, and the optimal infusion speed interval can be automatically matched through the analysis of the patient's age and physical condition by the single chip microcomputer. , can realize automatic adjustment, and is provided with a manual adjustment button, and the displayed infusion speed range can also be used as a reference for adjustment, realizing the intelligence of the infusion process; and by setting a manual adjustment device in the infusion set to adjust the speed of the drug droplet, avoiding the need for When the flow controller fails, the hidden safety hazard occurs, the operation is simple, and it has the characteristics of controllability, precision and humanization.

Description of drawings

Figure 1 is a schematic structural diagram of the utility model.

Figure 2 is a plan view of the flow controller.

Figure 3 is a schematic diagram of the circuit structure of the flow controller.

Figure 4 is a plan view of the manual adjustment device.

FIG. 5 is a schematic structural diagram of the manual adjustment device.

In the figure: 1. Air pressure bladder, 2a. First catheter, 2b. Second catheter, 2c. Third catheter, 3. Flow controller, 4. Needle, 5. Manual adjustment device, 6. Keyboard, 7. LCD display , 8. Manual adjustment button, 9. Manual knob, 10. Pointer, 11. Dial, 12. Buzzer alarm, 13. First gear, 14. Second gear, 15. Screw, 16 ball valve, 17 pointer adjustment button.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

Referring to Fig. 1, an intravenous infusion set that can accurately adjust the number of drops includes a first conduit 2a, the top of the first conduit 2a is connected to an air pressure bag 1, and the air pressure in the infusion tube and the infusion bottle is adjusted through the air pressure bag 1 to form a pressure difference , so that the medicinal liquid flows from the infusion bottle into the first conduit 2a, and the medicinal liquid flowing through the first conduit 2a flows from the end of the first conduit 2a into the liquid input end of the flow controller 3, and the flow control controller 3 controls the droplets of medicine After the optimal drug drop rate is matched, the drug liquid flows out from the liquid output end of the flow controller 3, enters the top of the second conduit 2b, flows into the needle 4 through the second conduit 2b, and conducts the patient through the needle 4. Infusion; when the flow controller 3 fails, the medicinal liquid flows into the liquid input end of the manual adjusting device 5 through the end of the second conduit 2b, and the medicinal liquid whose dripping speed is adjusted by the manual adjusting device 5, the liquid output end of the manual adjusting device 5 The top end of the third catheter 2c is connected to the end of the third catheter 2c, and the end of the third catheter 2c is connected to the needle 4, through which the patient is infused with fluid.

Referring to Figure 2-3, the circuit structure of the flow controller 3 includes a power supply, stm32 single-chip microcomputer, a keyboard 6, a liquid crystal display 7, a manual adjustment button 8 and a buzzer 12. The medical staff inputs and controls the patient's age and condition through the keyboard 6. The condition signal transmits the patient’s condition to the stm32 single-chip microcomputer through the pin INPUT1. After being processed by the single-chip microcomputer, the optimal infusion drip rate is automatically matched, and the optimal infusion drip rate interval is displayed on the LCD 7 through the pin OUT1. On the LCD screen, it is for reference by medical staff and escorts; the droplet speed of the medicine can also be adjusted by the manual adjustment button 8. During adjustment, when the droplet speed of the medicine is close to the threshold value, the numbers on the liquid crystal display 7 will turn red, and The threshold signal is transmitted to the stm32 single-chip microcomputer through the pin OUT1. After being processed by the single-chip microcomputer, the signal is transmitted to the buzzer alarm 12 through the pin OUT2, and the buzzer alarm 12 is prompted.

4-5, the manual adjustment device 5 includes an adjustment assembly and a display assembly, and the adjustment assembly and the display assembly are engaged by gears; the adjustment assembly includes a manual knob 9, a first gear 13, a screw 15 and a ball valve 16, so The manual knob 9 is connected with the first gear 13, the first gear 13 is connected with the screw 15, and the screw 15 is connected with the ball valve 16; when adjusting the liquid drop speed, the manual knob 9 is rotated, and the manual knob 9 drives the first gear 13 to rotate , the first gear 13 drives the screw 15 to rotate, the screw 15 drives the ball valve 16 to rotate, and controls the drop rate of the medicine by controlling the opening and closing of the ball valve 16; the display assembly includes a pointer 10, a dial 11, a second gear 14 and a pointer Adjustment knob 17, the pointer 10 is fixedly connected to the pointer adjustment knob 17, and the pointer adjustment knob 17 is connected with the second gear 14. When the manual knob 9 is turned, the first gear 13 rotates and rotates, and the first gear 13 drives the first gear 13 through the bite force. The second gear 14 rotates, the second gear 14 drives the pointer adjusting button 17 arranged on the dial 11 to rotate, and the pointer adjusting button 17 drives the pointer 10 to rotate on the dial 11 to point to the adjusted scale value; The scale interval is: 0d/m-60d/m, d/m=drop/min, each grade is divided into 5 scale values, a total of 13 grades.

The basic principles, main features and advantages of the present invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention There will also be various changes and improvements in the new model, which all fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. an intravenous infusion device that can accurately adjust the number of drops, it is characterized in that: comprise the first conduit (2a), the top of the first conduit (2a) is connected with one end of the air pressure bag (1), the air pressure bag (1) The other end is connected to the infusion bottle through a conduit, the end of the first conduit (2a) is connected to the liquid input end of the flow controller (3), and the liquid output end of the flow controller (3) is connected to the top of the second conduit (2b) , the flow controller (3) controls the drop rate of the medicine in the entire infusion set by adjusting the drop speed of the medicine inside the catheter. 2. a kind of intravenous infusion device that can accurately adjust the number of drops according to claim 1, it is characterized in that: described flow controller (3) comprises power supply, control panel, stm32 single chip microcomputer, keyboard (6), liquid crystal display (7), a manual adjustment button (8) and a buzzer alarm (12); the keyboard (6) is arranged below the control panel, the liquid crystal display (7) is arranged above the control panel, and the manual adjustment button (8) ) is symmetrically arranged between the liquid crystal display (7) and the keyboard (6), and the buzzer alarm (12) is arranged at the upper right of the control panel. 3. The intravenous infusion set capable of accurately adjusting the number of drops according to claim 2, wherein the manual adjustment button (8) is divided into two buttons: a button for increasing the rate of infusion and a button for decreasing the rate of infusion. 4. a kind of intravenous infusion device that can accurately adjust the number of drops according to claim 2, is characterized in that: the signal output end of described keyboard (6) is connected with the pin INPUT1 of stm32 single-chip microcomputer by wire, and manually adjusts the button The signal output terminal of (8) is connected to the pin INPUT2 of the stm32 single-chip microcomputer through a wire, the signal input and output terminal of the liquid crystal display (7) is connected to the pin OUT1 of the stm32 single-chip microcomputer through a wire, and the signal input terminal of the buzzer alarm (12) Connect to the pin OUT2 of the stm32 microcontroller through a wire. 5. The intravenous infusion device that can accurately adjust the number of drops according to claim 1, wherein the intravenous infusion device further comprises a manual adjustment device (5), and the liquid input end of the manual adjustment device (5) is connected with the end of the second conduit (2b), the liquid output end of the manual adjustment device (5) is connected with the top end of the third conduit (2c), and the end of the third conduit (2c) is connected with the needle (4); the manual The adjustment device (5) includes an adjustment assembly and a display assembly, and the adjustment assembly and the display assembly are meshed with gears. 6. An intravenous infusion device capable of accurately adjusting the number of drops according to claim 5, characterized in that: the adjustment component comprises a manual knob (9), a first gear (13), a screw (15) and a ball valve (16), the manual knob (9) is connected with the first gear (13), the first gear (13) is connected with the screw (15), and the screw (15) is connected with the ball valve (16); Actuating the manual knob (9) drives the first gear (13) to rotate, and the first gear (13) drives the screw (15) and the ball valve (16) to rotate to control the drop rate of the medicine. 7. An intravenous infusion set capable of accurately adjusting the number of drops according to claim 5 or 6, wherein the display assembly comprises a pointer (10), a dial (11), a second gear (14) and the pointer adjustment button (17), the pointer (10) is fixedly connected to the pointer adjustment button (17), and the pointer adjustment button (17) is connected with the second gear (14); when turning the manual knob (9), turn the manual knob (9). (9) Drive the first gear (13) to rotate, the first gear (13) drives the second gear (14) to rotate through the occlusal force, and drives the pointer (10) to rotate on the dial (11). 8. a kind of intravenous infusion set that can accurately adjust the number of drops according to claim 7, is characterized in that: the scale interval of described dial (11) is: 0d/m-60d/m, every grade is divided into 5 scale values, a total of 13 grades.

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