CN113413512A - Device for removing air bubbles and preventing blood backflow in venous transfusion - Google Patents

Abstract

The invention discloses a device for removing air bubbles and preventing blood backflow in venous transfusion, which is characterized by comprising: the device comprises a first shell, a second shell, a groove, a lock catch, a switch, a buzzer, a photoelectric emitter, a photoelectric receiver, an electromagnetic valve, a battery, a super-harmonic oscillator, an integrated circuit board, a processor and a memory; the invention can be clamped on the infusion tube, monitors whether the infusion tube contains the injection or not, blocks the infusion tube after the injection of the injection is finished, and prevents the blood in the blood vessel from flowing back into the infusion tube when the infusion is finished; meanwhile, when the transfusion is finished, the infusion apparatus can make a sound to prompt medical staff, patients or family members; in addition, the bubbles in the injection can be broken into small bubbles by the aid of vibration generated by high-frequency ultrasonic waves and float up to the inside of the Fielder dropper, so that the bubbles are prevented from entering blood vessels of a human body along with the injection.

Description

Device for removing air bubbles and preventing blood backflow in venous transfusion

Technical Field

The invention belongs to the field of medical instruments, and particularly relates to a device for removing air bubbles and preventing blood backflow in intravenous infusion.

Background

Intravenous infusion is not strange to everyone, and is more or less touched or experienced in life; the intravenous infusion is a method for infusing a large amount of sterile liquid, electrolyte and medicine into the body from veins by utilizing the principles of atmospheric pressure and hydrostatic pressure, and generally, a large amount of injection is packaged in a glass bottle or a plastic infusion bottle or a plastic bag and is continuously and stably instilled into the venous blood vessel of a human body through an infusion apparatus;

when in intravenous infusion, sometimes bubbles exist in an infusion tube, the bubbles can enter the human body venous blood vessel along with injection in the infusion process, the influence on the human body is small when a small amount of air enters, but the air embolism is easily caused when the air entering amount is large, and sudden death can be caused under severe conditions; meanwhile, if the venous indwelling needle is not pulled out in time after the infusion is finished, because no liquid exists in the liquid injection tube, intravascular blood can flow back into the infusion tube, although the amount of the blood flowing back out cannot cause great damage to a human body, stronger visual impact can be generated for a patient, the hospitalization experience of the patient is influenced, and even the doctor-patient relationship is influenced; in addition, as the medical level progresses and people demand higher and higher medical experiences; therefore, it is necessary to remove air from the injection solution during the infusion and to prevent the backflow of blood due to the withdrawal of the indwelling needle after the infusion is completed.

Disclosure of Invention

The invention provides a device for removing bubbles and preventing blood backflow in venous transfusion, which can be clamped on a transfusion tube, monitors whether the transfusion tube contains injection or not, blocks the transfusion tube after the injection of the injection is finished, and prevents blood in a blood vessel from flowing back into the transfusion tube when the transfusion is finished; meanwhile, when the transfusion is finished, the infusion apparatus can make a sound to prompt medical staff, patients or family members; in addition, the bubbles in the injection can be broken into small bubbles by the aid of vibration generated by high-frequency ultrasonic waves and float up to the inside of the Fielder dropper, so that the bubbles are prevented from entering blood vessels of a human body along with the injection.

In order to achieve the technical purpose, the invention adopts the technical scheme that the device for removing air bubbles and preventing blood backflow in venous transfusion comprises: the device comprises a first shell, a second shell, a groove, a lock catch, a switch, a buzzer, a photoelectric emitter, a photoelectric receiver, an electromagnetic valve, a battery, a super-harmonic oscillator, an integrated circuit board, a processor and a memory;

the rear side edge of the first shell is hinged with the rear side edge of the second shell, the first shell is hinged with the rear side of the second shell, grooves from top to bottom are formed in the middle parts of the right end face of the first shell and the left end face of the second shell, the two grooves are combined into a round hole after the two shells are closed, a photoelectric emitter is arranged on the inner wall of the middle part of the groove of the first shell, a photoelectric receiver is arranged on the inner wall of the middle part of the groove of the second shell, a notch is respectively formed in the positions, close to the lower end, of the grooves of the two shells, and an electromagnetic valve is connected in the notch; the outer side wall of the first shell is connected with a switch button, the upper side of the switch button is provided with a round hole, and a buzzer is connected in the round hole; a battery is arranged in the first shell; a super-harmonic oscillator, an integrated circuit board, a processor and a memory are arranged in the second shell;

furthermore, the lock catch comprises a bolt, a jack and a button, the bolt is connected to the front side edge of the right end face of the first shell, the jack is arranged at the position, corresponding to the bolt, of the left end face of the second shell, the button is connected to the front end face of the second shell, and a buckle structure is arranged in the part, connected to the second shell, of the button;

furthermore, a switch, a buzzer, a photoelectric emitter, an electromagnetic valve, a battery and an ultrasonic oscillator which are connected with the first casing and the second casing are electrically connected to the integrated circuit board, and the processor and the memory are connected to the integrated circuit board; the integrated circuit board is provided with a signal amplifying circuit, an A/D conversion circuit, a control circuit and the like;

the use method and the principle of the invention are as follows:

firstly, clamping an infusion tube at the lower end of a Fei's dropper in grooves of a first shell and a second shell, closing the infusion tube, inserting a bolt into an insertion hole for locking, clamping the device on the infusion tube, and pressing a switch starting device; then the program run by the processor will send out instructions at intervals to control the photoelectric emitter to send out optical signals, the photoelectric receiver sends out signals and transmits the signals to the integrated circuit board after receiving the signals, the analog signals are converted into digital signals by the signal amplifying circuit and the A/D conversion circuit and then transmitted to the processor, the program run by the processor is analyzed after receiving the signals, whether the infusion solution is in the infusion tube or not is judged by calculating the time from the process of sending the optical signal to the process of receiving the optical signal, when no injection is in the infusion tube, the program operated by the processor can send out an instruction, the control circuit controls the communicating electromagnetic valves to bounce when receiving the instruction, the two electromagnetic valves can clamp and extrude the infusion tube after bouncing, the inner part of the infusion tube is blocked, so that the inner part of the infusion tube at the lower end is of a sealing structure, the pressure in the infusion tube and the blood vessel is balanced, and blood in the blood vessel cannot flow back to the blood vessel; and finally, a program operated by the processor sends an instruction at intervals, the power supply of the super-sonic oscillator is connected, the instruction is sent when a preset time point is reached, the power supply of the super-sonic oscillator is controlled to be disconnected, the super-sonic oscillator can send out high-frequency sound waves when the power supply is connected, the bubbles in the infusion tube are shattered into fine bubbles by vibration generated by the high-frequency sound waves and float into the Feiche dropper, and therefore the bubbles are prevented from entering the blood vessel of the patient along with the injection.

The invention has the beneficial effects that:

1. the device for removing bubbles and preventing blood backflow in venous transfusion can be clamped on a transfusion tube, whether the transfusion tube contains injection or not is monitored, after the injection is injected, the transfusion tube is blocked, the pressure in the lower section of the transfusion tube is balanced with the pressure in a blood vessel, and the blood in the blood vessel is prevented from flowing back into the transfusion tube when the transfusion is finished;

2. the device for removing air bubbles and preventing blood backflow in venous transfusion can make a sound to prompt medical staff, patients or family members when the transfusion is finished, so that an indwelling needle can be pulled out at the first time when the transfusion is finished;

3. the device for removing bubbles and preventing blood backflow in intravenous infusion can emit high-frequency ultrasonic waves, and the bubbles in the injection are broken into small bubbles by using the vibration generated by the high-frequency ultrasonic waves and float up to the Fei's dropper, so that the bubbles are prevented from entering the blood vessel of a human body along with the injection.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a block diagram of the present invention 1;

FIG. 2 is a block diagram of the present invention 2;

FIG. 3 is a schematic representation of the use of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1-first case, 2-second case, 3-groove, 4-lock catch, 401-bolt, 402-jack, 403-button, 5-switch, 6-buzzer, 7-photoelectric emitter, 8-photoelectric receiver, 9-electromagnetic valve, 10-battery, 11-super-harmonic oscillator, 12-integrated circuit board, 13-processor, 14-memory

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, a structure of a device for removing air bubbles and preventing backflow of blood for intravenous infusion, comprising: the device comprises a first machine shell 1, a second machine shell 2, a groove 3, a lock catch 4, a switch 5, a buzzer 6, a photoelectric emitter 7, a photoelectric receiver 8, an electromagnetic valve 9, a battery 10, a super-harmonic oscillator 11, an integrated circuit board 12, a processor 13 and a memory 14;

the first machine shell 1 is hinged with the rear side of the second machine shell 2, the middle parts of the right end surface of the first machine shell 1 and the left end surface of the second machine shell 2 are respectively provided with a groove 3 from top to bottom, the two grooves 3 are combined into a round hole after the two machine shells are closed, the inner wall of the middle part of the groove 3 of the first machine shell 1 is provided with a photoelectric emitter 7, the inner wall of the middle part of the groove 3 of the second machine shell 2 is provided with a photoelectric receiver 8, the positions of the grooves 3 of the two machine shells, which are close to the lower ends, are respectively provided with a notch, and the notches are internally connected with electromagnetic valves 9; the outer side wall of the first machine shell 1 is connected with a switch 5, the upper side of the switch 5 is provided with a round hole, and a buzzer 6 is connected in the round hole; a battery 10 is arranged in the first casing 1; a super-harmonic oscillator 11, an integrated circuit board 12, a processor 13 and a memory 14 are arranged in the second housing 2; the clamping grooves 3 of the two shells are used for wrapping the infusion tube; the photoelectric emitter 7 is used for emitting optical signals, the photoelectric receiver 8 is used for receiving the optical signals, and whether the injection liquid exists in the infusion tube or not is judged by calculating the time from the emitting process to the receiving process of the optical signals; the electromagnetic valve 9 is used for clamping the infusion tube when no injection passes through the infusion tube, so that the infusion tube at the lower end is in a sealed state, the infusion process is blocked, and blood in the blood vessel is prevented from flowing back into the infusion tube when the infusion is finished; the buzzer 6 is used for giving out sound to prompt medical staff or patients or family members thereof when the transfusion is finished; the battery 10 is used to power the device; the ultrasonic oscillator 11 can emit high-frequency sound waves, and the bubbles in the infusion tube are shattered into fine bubbles by using the vibration generated by the high-frequency sound waves and float upwards into the drip cup, so that the bubbles are prevented from entering the blood vessel of a patient along with the injection during infusion; the processor 13 is used to process data and maintain normal operation of the device; the memory 14 is used for storing programs and data;

the lock catch 4 comprises a bolt 401, a jack 402 and a button 403, the bolt 401 is connected to the front side edge of the right end face of the first casing 1, the jack 402 is arranged at the position, corresponding to the bolt 401, of the left end face of the second casing 2, the button 403 is connected to the front end face of the second casing 2, and the button 403 is connected to the inside of the second casing 2 and connected with a buckle structure; the latch 401 enters from the jack 402 and is clamped on the buckle of the button 403, so as to achieve the purpose of locking the first case 1 and the second case 2, and when the first case 1 and the second case 2 need to be opened, the latch 401 can be separated from the buckle of the button 403 by pressing the button 403, so that the first case 1 and the second case 2 can be separated;

the switch 5, the buzzer 6, the photoelectric emitter 7, the electromagnetic valve 8, the battery 10 and the ultrasonic oscillator 11 which are connected with the first casing 1 and the second casing 2 are electrically connected to the integrated circuit board 12, and the processor 13 and the memory 14 are connected to the integrated circuit board 11; the integrated circuit board 11 is provided with a signal amplification circuit, an a/D conversion circuit, a control circuit, and the like.

Example 1

The invention is used as a device for removing air bubbles and preventing blood backflow in venous transfusion, and has the following specific applications: when a patient is transfused, an infusion tube at the lower end of the Fei's dropper is clamped into the grooves of the first shell 1 and the second shell 2 and is combined, the bolt 401 is inserted into the jack 402 to be locked, so that the device is clamped on the infusion tube, and the switch 5 is pressed to start the device; the photoelectric emitter 7 can emit light signals, the photoelectric receiver 8 can receive the light signals, and whether the injection passes through is judged by calculating the time from the emitting process to the receiving process of the light signals; the electromagnetic valve 9 clamps the infusion tube when no injection passes through the infusion tube, so that the infusion tube at the lower end is in a sealed state, thereby blocking the infusion process and preventing blood in the blood vessel from flowing back when the infusion is finished; the buzzer 6 can make a sound to prompt nurses, patients or family members when the transfusion is finished; whether have the injection to pass through in monitoring the transfer line, when no injection passes through, solenoid valve 9 can bounce and extrude the transfer line, blocks the transfer line, is seal structure in making the lower segment transfer line to this prevents that the condition of the backward flow of intravascular blood to the transfer line from taking place when venous transfusion finishes, and sends out sound when the infusion finishes and indicate nurse, patient or family members.

Example 2

The invention is used as a device for removing air bubbles and preventing blood backflow in venous transfusion, and has the following specific applications: when a patient is transfused, an infusion tube at the lower end of the Fei's dropper is clamped into the grooves of the first shell 1 and the second shell 2 and is combined, the bolt 401 is inserted into the jack 402 to be locked, so that the device is clamped on the infusion tube, and the switch 5 is pressed to start the device; the ultrasonic oscillator 11 can emit high-frequency sound waves, and the bubbles in the infusion tube are shattered into fine bubbles by utilizing the vibration generated by the high-frequency sound waves and float upwards to the drip cup, so that the bubbles are prevented from entering the blood vessel of a patient along with injection during infusion.

The operation principle and the specific use method are as follows:

firstly, clamping an infusion tube at the lower end of a Fei's dropper in grooves of a first shell 1 and a second shell 2, closing the infusion tube, inserting a plug 401 into a jack 402 for locking, clamping the device on the infusion tube, and pressing a switch 5 to start the device; then, the program operated by the processor 13 will send out an instruction at intervals to control the photoelectric emitter 7 to send out an optical signal, the photoelectric receiver 8 will send out a signal and transmit the signal to the integrated circuit board 11 after receiving the signal, the analog signal will be converted into a digital signal by the signal amplifying circuit and the A/D converting circuit and then transmitted to the processor 13, the program operated by the processor 13 will analyze after receiving the signal, judge whether there is injection in the infusion tube by calculating the time from sending out the optical signal to receiving the optical signal, when there is no injection in the infusion tube, the program operated by the processor 13 will send out an instruction, the control circuit will control the communicating electromagnetic valve 9 to bounce when receiving the instruction, the two electromagnetic valves 9 will clip and extrude the infusion tube after bouncing, and block the interior of the infusion tube, so that the interior of the infusion tube at the lower end is a sealed structure, and the pressure in the infusion tube is equalized, the blood in the blood vessel can not flow back to the blood vessel; finally, the program run by the processor 13 sends out an instruction at intervals, the power supply of the super-sonic oscillator 11 is connected, the instruction is sent out when the preset time point is reached, the power supply of the super-sonic oscillator 11 is controlled to be disconnected, the super-sonic oscillator 11 can send out high-frequency sound waves when the power supply is connected, the bubbles in the infusion tube are shattered into fine bubbles by vibration generated by the high-frequency sound waves and float into the Feiche dropper, and therefore the bubbles are prevented from entering the blood vessel of the patient along with the injection.

In summary, the device for removing air bubbles and preventing blood backflow in venous transfusion can be clamped on a transfusion tube, whether the transfusion tube contains injection or not is monitored, after the injection is injected, the transfusion tube is blocked, the pressure in the lower section of the transfusion tube is balanced with the pressure in a blood vessel, and blood in the blood vessel is prevented from flowing back into the transfusion tube when the transfusion is finished;

2. the device for removing air bubbles and preventing blood backflow in venous transfusion can make a sound to prompt medical staff, patients or family members when the transfusion is finished, so that an indwelling needle can be pulled out at the first time when the transfusion is finished;

3. the device for removing bubbles and preventing blood backflow in intravenous infusion can emit high-frequency ultrasonic waves, and the bubbles in the injection are broken into small bubbles by using the vibration generated by the high-frequency ultrasonic waves and float up to the Fei's dropper, so that the bubbles are prevented from entering the blood vessel of a human body along with the injection.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (5)

1. An intravenous infusion air bubble removal and blood backflow prevention device, comprising: the device comprises a first shell, a second shell, a groove, a lock catch, a switch, a buzzer, a photoelectric emitter, a photoelectric receiver, an electromagnetic valve, a battery, a super-harmonic oscillator, an integrated circuit board, a processor and a memory;

the rear side edge of the first shell is hinged with the rear side edge of the second shell, the first shell is hinged with the rear side of the second shell, grooves from top to bottom are formed in the middle parts of the right end face of the first shell and the left end face of the second shell, the two grooves are combined into a round hole after the two shells are closed, a photoelectric emitter is arranged on the inner wall of the middle part of the groove of the first shell, a photoelectric receiver is arranged on the inner wall of the middle part of the groove of the second shell, a notch is respectively formed in the positions, close to the lower end, of the grooves of the two shells, and an electromagnetic valve is connected in the notch; the outer side wall of the first shell is connected with a switch button, the upper side of the switch button is provided with a round hole, and a buzzer is connected in the round hole; a battery is arranged in the first shell; the super-harmonic oscillator, the integrated circuit board, the processor and the memory are arranged in the second shell.

2. The device for removing air bubbles and preventing blood backflow in intravenous infusion set according to claim 1, wherein the latch comprises a pin, a jack and a button, the pin is connected to the front side of the right end face of the first housing, the jack is arranged at the position of the left end face of the second housing corresponding to the pin, the button is connected to the front end face of the second housing, and the part of the button connected to the second housing is provided with a buckle structure.

3. The device for removing air bubbles and preventing blood backflow in intravenous infusion set according to claim 1, wherein the switch, the buzzer, the photoemitter, the electromagnetic valve, the battery and the ultrasonic oscillator connected with the first casing and the second casing are electrically connected to an integrated circuit board, and the processor and the memory are connected to the integrated circuit board; the integrated circuit board is provided with a signal amplifying circuit, an A/D conversion circuit, a control circuit and the like.

4. Another object of the present invention is to provide a method for using a device for removing air bubbles and preventing backflow of blood for intravenous infusion, according to claims 1 to 3, wherein:

firstly, clamping an infusion tube at the lower end of a Fei's dropper in grooves of a first shell and a second shell, closing the infusion tube, inserting a bolt into an insertion hole for locking, clamping the device on the infusion tube, and pressing a switch starting device; then the program run by the processor will send out instructions at intervals to control the photoelectric emitter to send out optical signals, the photoelectric receiver sends out signals and transmits the signals to the integrated circuit board after receiving the signals, the analog signals are converted into digital signals by the signal amplifying circuit and the A/D conversion circuit and then transmitted to the processor, the program run by the processor is analyzed after receiving the signals, whether the infusion solution is in the infusion tube or not is judged by calculating the time from the process of sending the optical signal to the process of receiving the optical signal, when no injection is in the infusion tube, the program operated by the processor can send out an instruction, the control circuit controls the communicating electromagnetic valves to bounce when receiving the instruction, the two electromagnetic valves can clamp and extrude the infusion tube after bouncing, the inner part of the infusion tube is blocked, so that the inner part of the infusion tube at the lower end is of a sealing structure, the pressure in the infusion tube and the blood vessel is balanced, and blood in the blood vessel cannot flow back to the blood vessel; and finally, a program operated by the processor sends an instruction at intervals, the power supply of the super-sonic oscillator is connected, the instruction is sent when a preset time point is reached, the power supply of the super-sonic oscillator is controlled to be disconnected, the super-sonic oscillator can send out high-frequency sound waves when the power supply is connected, the bubbles in the infusion tube are shattered into fine bubbles by vibration generated by the high-frequency sound waves and float into the Feiche dropper, and therefore the bubbles are prevented from entering the blood vessel of the patient along with the injection.

5. An intravenous fluid bubbling eliminating and blood backflow preventing device according to claims 1 to 4, and its application in intravenous fluid is disclosed.

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