CN212854242U

CN212854242U - Device for controlling infusion dripping speed

Info

Publication number: CN212854242U
Application number: CN202020081023.0U
Authority: CN
Inventors: 戴灵; 费钰江; 邓小建
Original assignee: Hangzhou Tongquan Iot Technology Co ltd
Current assignee: Hangzhou Tongquan Iot Technology Co ltd
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2021-04-02
Anticipated expiration: 2030-01-15

Abstract

The utility model discloses a device for controlling the infusion dripping speed, which comprises a bottom shell, a first buckle, a second buckle, a Mofeis dropper fixing seat, a first photoelectric switch combination, a second photoelectric switch combination, a motor bracket, a slide block, a guide shaft, a motor and a circuit part, wherein the first buckle and the second buckle are arranged on the top surface of the bottom shell; the Murphy dropper fixing seat, the first photoelectric switch combination, the second photoelectric switch combination, the motor bracket, the sliding block, the guide shaft, the motor and the circuit part are arranged in the bottom shell; the motor and the guide shaft are fixed on the motor bracket, the sliding block is sleeved on the main shaft and the guide shaft of the motor, the main shaft of the motor rotates when the motor rotates to drive the sliding block to move in two directions along the guide shaft, and the sliding block releases and extrudes a transfusion tube below the Murphy's dropper to control the dropping speed. The utility model provides a device and a method for controlling the infusion dripping speed, which can monitor and adjust the infusion dripping speed in real time, is convenient to operate and can realize wireless communication.

Description

Device for controlling infusion dripping speed

Technical Field

The utility model belongs to the technical field of medical equipment, a control infusion drips fast device is related to.

Background

Infusion is a common means of treatment and care in hospitals. In order to prevent accidents in the infusion process, the infusion progress needs to be continuously monitored, and patients or family members often cannot have a rest while looking at the infusion bottle, so that not only is mental burden brought to the patients and the family members, but also the labor intensity of nursing staff is increased. The current calling can not replace the eyes of people, the bottle-empty phenomenon can occur if people do not pay attention to the calling, and medical accidents and medical disputes are easy to cause. In addition, the aging society progresses rapidly, the phenomenon of the solitary child is common, and the 421 family personnel structure consisting of the solitary child is more deficient in the accompanying aspect of the special person of the child when the parents suffer from diseases and transfuse.

In the traditional clinical infusion process, a nurse is generally adopted to monitor the infusion process and manually operate to start and stop the infusion. However, the existing medical resources are in shortage, in the practical process, the transfusion is often unsmooth due to various external factors, and the transfusion is required to be stopped, however, a nurse is very likely to nurse other patients and cannot timely arrive at a post to operate and stop the transfusion; in addition, even if a nurse is at a nurse station, it takes a certain time to come back, and the infusion cannot be stopped in time. The problem that how to realize infusion detection and automatically control infusion to relieve the resource shortage of medical staff is receiving more and more attention.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, an object of the present invention is to provide a device and a method for controlling the infusion dripping speed, which are adaptive to different models, can detect the dripping speed in time, and can be automatically controlled.

In order to achieve the above purpose, the technical scheme of the utility model is that:

a device for controlling the dropping speed of infusion comprises a bottom shell, a first buckle, a second buckle, a Mofeis dropper fixing seat, a first photoelectric switch combination, a second photoelectric switch combination, a motor bracket, a slide block, a guide shaft, a motor and a circuit part, wherein,

the first buckle and the second buckle are arranged on the top surface of the bottom shell; the Murphy's dropper fixing seat, the first photoelectric switch combination, the second photoelectric switch combination, the motor bracket, the sliding block, the guide shaft, the motor and the circuit part are arranged inside the bottom shell;

a second photoelectric switch combination is arranged below the second buckle; the Murphy dropper fixing seat is used for fixing the Murphy dropper; the motor bracket, the sliding block, the guide shaft and the motor are arranged on one side below the Murphy's dropper fixing seat; the first photoelectric switch combination is arranged on the other side below the Murphy's dropper fixing seat; the circuit part receives and sends infusion information, controls the motor, and detects the first photoelectric switch combination and the second photoelectric switch combination;

the motor and the guide shaft are fixed on the motor support, the sliding block is sleeved on the main shaft of the motor and the guide shaft, the main shaft of the motor rotates when the motor rotates to drive the sliding block to move in two directions along the guide shaft, and the sliding block releases and extrudes a liquid conveying pipe below the Murphy's dropper to control the dropping speed.

Preferably, the sliding block is connected with the motor through a threaded structure for transmission.

Preferably, the sliding block is connected with the motor through a gear structure for transmission.

Preferably, the sliding block is connected with the motor through a mechanical structure for transmission, is connected with the motor speed regulation module, and judges and adjusts the initial position and the extrusion cut-off position of the sliding block through two detection lines in the combination of the detection hole on the sliding block and the first photoelectric switch.

Preferably, the circuit part comprises a microcontroller, an infrared sensor, an optical coupler sensor, a charging unit, a motor speed regulation module and an RF communication module, wherein the microcontroller is respectively connected with the infrared sensor, the optical coupler sensor, the charging unit, the motor speed regulation module and the RF communication module; the infrared sensor emits light through an infrared tube, receives and detects the light, and detects the dropping speed; the microcontroller processes and converts signals transmitted by the infrared sensor and the optical coupling sensor to form a dripping speed signal and a dripping position signal, the dripping speed signal and the dripping position signal are transmitted by the RF communication module, and the motor speed regulation module regulates a deflection angle, controls the position of the sliding block and regulates and controls the dripping speed of the infusion; the charging unit comprises a charging battery and a charging management circuit, and the charging battery supplies power to the microcontroller, the first photoelectric switch combination, the second photoelectric switch combination and the motor.

Preferably, the circuit part further comprises a key connected with the microcontroller, the key assists in manually setting the upper and lower limit ranges of the infusion dripping speed, and the microcontroller controls the motor push-pull slide block to adjust the infusion dripping speed through the motor speed regulation module after receiving the upper and lower limit ranges of the infusion dripping speed set by the key, so that the infusion dripping speed is controlled within the set upper and lower limit ranges of the infusion dripping speed.

Preferably, the circuit part also comprises a voice module which is connected with the microcontroller and used for carrying out voice broadcast on the electric quantity, the infusion dripping speed, the remaining time and the abnormal warning.

Preferably, the circuit portion further comprises a liquid crystal display connected to the microcontroller for displaying the amount of electricity, the infusion drop rate, the remaining time and an abnormality warning.

Preferably, the circuit part further comprises a three-transceiver infrared sensor connected with the microcontroller, and the angle range for detecting the dropping liquid can be increased.

Preferably, the circuit part further comprises a pair of infrared sensors for detecting the liquid level, and the infrared sensors are connected with the microcontroller and used for detecting the extrusion cut-off completion state of the motor after the infusion is completed.

Based on the above purpose, the utility model also provides a method for controlling the infusion dripping speed, which comprises the following steps:

hanging the Murphy's dropper fixing seat on a Murphy's dropper for pre-transfusion, and selecting a first buckle or a second buckle for clamping according to the pipe diameter of the Murphy's dropper;

after the power is on, the motor controls the sliding block to extrude and cut off the infusion tube below the Murphy's dropper, the background sets information such as infusion volume, upper and lower limits of dropping speed and the like, the information is sent to the device for controlling the infusion dropping speed, and then the motor adjusts the position of the sliding block according to the set upper and lower limits and adjusts the dropping speed within the upper and lower limit ranges;

after the transfusion is finished, the motor controls the sliding block to extrude the transfusion tube below the Murphy's dropper to cut off the flow;

and pressing the ending key to enable the motor to retreat the sliding block to the initial position.

Preferably, if the infusion is not within the set upper and lower limit ranges of the dropping speed in the infusion process, the voice prompt gives an alarm, and the motor speed regulation module controls the motor to regulate the position of the sliding block so that the dropping speed is regulated within the set range again.

Preferably, in the process of infusion, the infusion information is sent to the background, and the background monitors the infusion information at the same time.

Compared with the prior art, the beneficial effects of the utility model are as follows: aiming at the defects that the prior wheel-type speed regulator of the infusion tube is inconvenient and needs manual operation, a method for extruding the wall of the infusion tube by driving a sliding block by a stepping motor is adopted. In the infusion process, if the dropping speed of the liquid medicine needs to be reduced, the sliding block can be driven by the motor to extrude the tube wall of the infusion tube, so that the cross-sectional area of the infusion tube is reduced, and the effect of reducing the flow speed of the liquid medicine and controlling the dropping speed is achieved. The utility model adopts automatic control, the infrared sensor tests that the dripping speed is too fast or too slow, and the dripping speed is adjusted and reduced or accelerated according to the set dripping speed and is always kept in the set transfusion range; after the transfusion is finished, the transfusion tube below the Murphy's dropper is automatically extruded to stop the flow, so as to prevent the blood return of the patient.

Drawings

FIG. 1 is a schematic structural view of a device for controlling the dropping speed of an infusion solution according to an embodiment of the present invention;

FIG. 2 is an exploded view of the device for controlling the dropping speed of an infusion solution according to the embodiment of the present invention;

FIG. 3 is a schematic structural view of a motor portion of the device for controlling the dropping speed of an infusion solution according to the embodiment of the present invention;

FIG. 4 is a schematic view of a slider structure of the device for controlling the dropping speed of an infusion solution according to the embodiment of the present invention;

FIG. 5 is a diagram of the initial state of the slider of the device for controlling the dropping speed of an infusion solution according to the embodiment of the present invention;

FIG. 6 is a diagram of the pressing state of the slider of the device for controlling the dropping speed of the infusion solution according to the embodiment of the present invention;

FIG. 7 is a schematic view of a buckle structure of the device for controlling the dropping speed of an infusion solution according to the embodiment of the present invention;

FIG. 8 is a schematic view of a structure of detecting the dropping speed of the device for controlling the dropping speed of infusion according to the embodiment of the present invention;

FIG. 9 is a schematic view of the dropping speed detection principle of the device for controlling the dropping speed of infusion according to the embodiment of the present invention;

FIG. 10 is a schematic view of a liquid level detecting structure of the device for controlling the dropping speed of infusion liquid according to the embodiment of the present invention;

FIG. 11 is a block diagram of the circuit of the device for controlling the dripping speed of the infusion solution according to the embodiment of the present invention;

fig. 12 is a flowchart illustrating steps of a method for controlling the dropping speed of an infusion solution according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

In the following detailed description of the present invention, certain specific details are set forth in order to provide a better understanding of the present invention. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details.

Apparatus example 1

Referring to fig. 1 and 2, a schematic structural diagram of a device for controlling a dropping speed of an infusion according to an embodiment of the present invention and an explosion thereof are shown, including a bottom case 10, a first buckle 21, a second buckle 22, a murphy dropper fixing base 30, a first photoelectric switch assembly 41, a second photoelectric switch assembly 42, a motor bracket 51, a slider 52, a guide shaft 53, a motor 54, and a circuit portion, wherein the first buckle 21 and the second buckle 22 are disposed on a top surface of the bottom case 10; the murphy dropper fixing seat 30, the first photoelectric switch combination 41, the second photoelectric switch combination 42, the motor bracket 51, the sliding block 52, the guide shaft 53, the motor 54 and the circuit part are arranged inside the bottom shell 10; a second photoelectric switch combination 42 is arranged below the second buckle 22; the murphy dropper fixing seat 30 is used for fixing the murphy dropper; the motor bracket 51, the slide block 52, the guide shaft 53 and the motor 54 are arranged on one side below the Murphy's dropper fixing seat 30; the first photoelectric switch combination 41 is arranged on the other side below the Murphy's dropper fixing seat 30; the circuit part receives and sends infusion information, controls the motor 54, detects the first photoelectric switch combination 41 and the second photoelectric switch combination 42; the motor 54 and the guide shaft 53 are fixed on the motor bracket 51, the slide block 52 is sleeved on the main shaft of the motor 54 and the guide shaft 53, the main shaft of the motor 54 rotates when the motor 54 rotates, the slide block 52 is driven to move in two directions along the guide shaft 53, and the slide block 52 loosens and extrudes the infusion tube below the Murphy's dropper so as to control the dropping speed.

In a particular embodiment, the slider 52 is driven by a mechanical connection with a motor 54.

Apparatus example 2

Referring to fig. 3 and 6, two holes are formed in the sliding block 52 and are respectively sleeved on a main shaft of the motor 54 and the guide shaft 53, the main shaft of the motor 54 rotates when the motor 54 rotates to drive the sliding block 52 to move in two directions along the guide shaft 53, and the sliding block 52 is further provided with a detection hole 55, which is as shown in fig. 6. The first opto-electronic switching combination 41 is thus set to perform a supplementary calibration. When the detection line 411 of the first photoelectric switch assembly 41 is blocked by the slider 52 and the detection line 412 is not blocked, it is a zero initial point of the slider 52; when the slide block 52 continues to advance, the detection line 411 of the first photoelectric switch combination 41 is blocked again through the detection hole 55 on the slide block 52 and the detection line 412 is also blocked by the slide block 52, so that the slide block 52 completely extrudes the infusion tube hose. The initial position of the slider 52 is determined by the

detection lines

411 and 412 of the first photoelectric switch combination.

Apparatus example 3

Referring to fig. 4 and 5, when the slider 52 is at the initial position, the slider 52 is not in contact with the infusion tube 31. At this time, the transfusion tube 31 is in a complete opening state, and the transfusion dripping speed is the maximum value; when the motor 54 drives the sliding block 52 to move towards the structural wall of the bottom shell 10, the infusion tube hose 31 is extruded by the sliding block 52 towards the structural wall of the bottom shell 10, and the infusion dropping speed is gradually reduced; when the slide block 52 extrudes the infusion tube hose to the limit, the infusion tube hose 31 is completely extruded, and the liquid medicine cannot drop at the moment, so that the extrusion cut-off state is achieved. Typically the tubing hose has an outer diameter of about 4mm and therefore the maximum squeeze distance of the slide 52 is less than 4mm to prevent damage to the hose. The slide block 52 can stop at any position within 4mm to realize the purpose of controlling the dropping speed of the transfusion.

Apparatus example 4

Referring to fig. 7, in actual use, hospitals often use two kinds of murphy droppers with different pipe diameters, one is a general-purpose infusion tube, the other is a precision infusion tube, and an infusion hose below the murphy dropper is harder than the general-purpose infusion tube. Because of the hardness difference of hose, the utility model discloses the parameter of predesigned extrusion cutout hose is also different, so for distinguishing the transfer line of discernment two kinds of differences, set up second photoelectric switch combination 42, cooperate the separation blade 23 that second buckle 22 below set up: when the universal infusion tube is used, the first buckle 21 is pulled to be fixed at the Murphy's dropper, and the device runs a default program; when the precise infusion tube is used, the second buckle 22 is pulled to be fixed at the Murphy's dropper, the baffle 23 blocks the detection line of the second photoelectric switch combination 42 to close the detection line, and the device runs a program adapting to the precise infusion tube.

Apparatus example 5

Referring to fig. 8 and 9, the detecting portion includes an infrared transmitting tube and an infrared receiving tube for the structural schematic diagram of the detecting portion.

Wherein, the infrared transmitting tube 1 and the infrared receiving tube 3 are arranged. The receiving tubes are arranged at an included angle of 20 degrees in the same plane, and the detection range of the receiving tubes is infrared light with the top end serving as the original point within 20 degrees, so that the 3 receiving tubes can detect the liquid drop dropping within the range of 60 degrees in the plane and 20 degrees in the normal direction.

When no liquid drops, the transmitting tube emits infrared rays, and the receiving tube normally receives infrared signals; when the liquid drops fall into the detection range of the receiving tube, the liquid drops block infrared rays, the receiving tube cannot receive infrared signals, and when the liquid drops fall out of the detection range of the receiving tube, the receiving tube receives the infrared signals again, and the process is marked as 1 drop.

The working sequence of the 3 infrared receiving tubes is a receiving tube 62, a receiving tube 63 and a receiving tube 64. The device defaults to preferentially use the receiving pipe 62, starts the receiving pipe 63 to detect when the receiving pipe 62 can not detect liquid drops in the using process, and starts the receiving pipe 64 to detect when the receiving pipe 63 can not detect liquid drops. The 3 receiving tubes are switched circularly by the logic. If more than 1 receiving tube detects the liquid drop at the same time, the device is marked as 1 drop

Apparatus example 6

Referring to fig. 10, when the product is used, the liquid level in the Murphy dropper is detected by the infrared pair of tubes, so as to assist the device for controlling the dropping speed of the infusion to squeeze the hose of the infusion tube.

When the infusion is finished and the infrared receiving tube for detecting the dropping speed cannot detect the dropping speed, the motor speed regulating module controls the motor to rotate to drive the sliding block to extrude the infusion tube hose. In order to prevent the situation that the advancing amount of the sliding block is insufficient and the infusion tube hose cannot be completely squeezed, a pair of infrared geminate transistors 71 are added to detect the liquid level in the Murphy's dropper, and if the infrared geminate transistors 71 detect that the liquid level is lowered, the motor speed regulation module controls the motor to rotate and drive the sliding block to continuously squeeze the infusion tube hose.

Circuit part embodiment

Referring to fig. 11, which is a block diagram of a circuit portion, the circuit portion includes a microcontroller 11, an infrared sensor 12, an optical coupler sensor 14, a charging unit 15, a motor speed regulation module 16, and an RF communication module 17, wherein the microcontroller 11 is connected to the infrared sensor 12, the optical coupler sensor 14, the charging unit 15, the motor speed regulation module 16, and the RF communication module 17, respectively; the infrared sensor 12 emits light through an infrared tube, receives and detects the light, and detects the dropping speed; the microcontroller 11 processes and converts signals transmitted by the infrared sensor 12 and the optical coupling sensor 14 to form a signal of dropping speed and a signal of dropping liquid position, and the signal is sent out by the RF communication module 17, and the motor speed regulation module 16 controls the motor to regulate the deflection angle, regulate the position of the sliding block and regulate and control the dropping speed of the infusion; the charging unit 15 includes a rechargeable battery that supplies power to the circuit part, the first photoelectric switch combination, the second photoelectric switch combination, and the motor, and a charging management circuit.

In a specific embodiment, the circuit part further comprises a key 13 connected with the microcontroller 11, the key 13 assists in manually setting the infusion dropping speed, and after the microcontroller 11 receives the upper and lower limits of the infusion dropping speed set by the key 13, the motor speed regulating module 16 controls the motor push-pull slide block to adjust the infusion dropping speed so as to control the infusion dropping speed within the set upper and lower limits of the infusion dropping speed. Still include voice module 18, be connected with microcontroller 11, carry out voice broadcast to electric quantity, infusion speed of dripping, remaining time, unusual warning. And the liquid crystal display 19 is connected with the microcontroller 11 and displays the electric quantity, the infusion dropping speed, the remaining time and an abnormal warning.

Method embodiment

Referring to fig. 12, the method for controlling the dropping speed of infusion for controlling the above device comprises the steps of:

In the specific embodiment, if the dropping speed exceeds the upper and lower limits of the dropping speed in the infusion process, the voice prompt gives an alarm, and the motor speed regulation module controls the motor to regulate the position of the sliding block, so that the dropping speed is regulated to the set range again.

In the process of infusion, the infusion information is sent to the background, and the background simultaneously monitors the infusion information.

Optional parameters of the motor: 5V power supply, and the main shaft is an M3 screw; the sliding block is made of aluminum alloy materials, so that the weight is reduced, and the structural strength is ensured; the motion mode of the motor is as follows: the rotation stepping angle of the motor after obtaining a pulse signal is 0.047 degrees, the thread of the motor spindle is M3, the thread pitch is 0.5mm, the calculation result shows that when the sliding block moves forward 0.5mm, the motor spindle rotates 360 degrees, and the number of pulses obtained by the motor is about 7660.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A device for controlling the dropping speed of infusion is characterized by comprising a bottom shell, a first buckle, a second buckle, a Murphy's dropper fixing seat, a first photoelectric switch combination, a second photoelectric switch combination, a motor bracket, a slide block, a guide shaft, a motor and a circuit part, wherein,

the first buckle and the second buckle are arranged on the top surface of the bottom shell and are respectively arranged on two sides of the upper end of the Mofeis dropper fixing seat; the Murphy's dropper fixing seat, the first photoelectric switch combination, the second photoelectric switch combination, the motor bracket, the sliding block, the guide shaft, the motor and the circuit part are arranged inside the bottom shell;

a second photoelectric switch combination is arranged below the second buckle; the Murphy dropper fixing seat is used for fixing the Murphy dropper; the motor bracket, the sliding block, the guide shaft and the motor are arranged on one side below the Murphy's dropper fixing seat; the first photoelectric switch combination is arranged on the other side below the Murphy's dropper fixing seat; the circuit part controls the motor, detects the first photoelectric switch combination and the second photoelectric switch combination;

one end of the motor and one end of the guide shaft are fixed on the motor support, the other end of the guide shaft is arranged on the rear shell in a supporting mode, the sliding block is sleeved on the main shaft of the motor and the guide shaft, the main shaft of the motor rotates when the motor rotates to drive the sliding block to move in two directions along the guide shaft, the sliding block releases and extrudes a liquid conveying pipe below the Murphy's dropper to control the dropping speed, and the sliding block is matched with the baffle and located on the rear shell.

2. The device for controlling the drip rate of an infusion according to claim 1, wherein the slider is connected to and driven by a motor through a threaded structure.

3. The device for controlling the dropping speed of an infusion solution as claimed in claim 1, wherein the slide block is connected with and driven by a motor through a gear structure.

4. The device for controlling the dropping speed of the infusion solution according to claim 1, wherein the circuit part comprises a microcontroller, an infrared sensor, an optical coupling sensor, a charging unit, a motor speed regulation module and an RF communication module, wherein the microcontroller is respectively connected with the infrared sensor, the optical coupling sensor, the charging unit, the motor speed regulation module and the RF communication module; the infrared sensor emits light through an infrared tube, receives and detects the light, and detects the dropping speed; the microcontroller processes and converts signals transmitted by the infrared sensor and the optical coupling sensor to form a dripping speed signal and a dripping position signal, the dripping speed signal and the dripping position signal are transmitted by the RF communication module, and the motor speed regulation module regulates a deflection angle, controls the position of the sliding block and regulates and controls the dripping speed of the infusion; the charging unit comprises a charging battery and a charging management circuit, wherein the charging battery supplies power to the circuit part, the first photoelectric switch combination, the second photoelectric switch combination and the motor.

5. The device for controlling the dropping speed of an infusion solution as claimed in claim 1, wherein the circuit part further comprises a first photoelectric switch combination connected with the motor speed regulation module, and the initial position of the adjusting slide block and the extrusion cut-off position of the infusion tube are judged through the detection holes on the slide block and two detection lines in the first photoelectric switch combination.

6. The device for controlling the infusion dropping speed according to claim 4, wherein the circuit part further comprises a button connected with the microcontroller, the button assists in manually setting the upper and lower limit ranges of the infusion dropping speed, and the microcontroller controls the motor push-pull slide block to adjust the infusion dropping speed through the motor speed regulation module after receiving the upper and lower limit ranges of the infusion dropping speed set by the button.

7. The device for controlling the infusion drop rate according to claim 4, wherein the circuit part further comprises a voice module connected with the microcontroller for voice broadcasting of the electric quantity, the infusion drop rate, the remaining time and the abnormal warning.

8. The device according to claim 4, wherein the circuit portion further comprises a liquid crystal display connected to the microcontroller for displaying the power level, the infusion drop rate, the remaining time and an abnormality warning.

9. The device for controlling the dropping speed of an infusion according to claim 4, wherein the circuit section further comprises a three-transceiver infrared sensor connected with the microcontroller for increasing the angle range for detecting the dropping liquid.

10. The device of claim 4, wherein the circuit portion further comprises a pair of infrared sensors for detecting the fluid level, connected to the microcontroller, for detecting the completion of the pinch-off of the motor after the infusion is completed.