CN210355496U - Automatic device for solving unsmooth blood leading of blood purification - Google Patents

Abstract

The utility model relates to a blood purifies auxiliary device, especially is a solve blood purification and draw smooth automation equipment of blood, include the mounting panel, install the tee bend device and the setting of mounting panel one side are in the normal saline placer at tee bend device top. This solve blood purification and draw unsmooth automation equipment of blood, insert the normal saline bag through the intubate with the valve pipe fitting in, when taking place the pipe adherence, blood purification device takes over the internal pressure great, pour into the normal saline into the connecting tube in, guarantee suitable blood flow, improve continuity blood purifying effect, work through the solenoid valve in the solenoid valve control module control valve pipe fitting, realize automatic normal saline work of pouring into, realize that work is automatic, weight digital signal who gathers to the weight acquisition module through the flow algorithm module turns into flow information.

Description

Automatic device for solving unsmooth blood leading of blood purification

Technical Field

The utility model relates to a blood purifies auxiliary device specifically is a solve blood purification and draw unsmooth automation equipment of blood.

Background

The continuous blood purification technology can slowly, continuously and stably remove various toxins, inflammatory mediums and redundant water in the body of a patient, regulate the internal environment of the human body, and is widely applied to the treatment of various critical patients at present. In the continuous treatment process, the normal operation of the bedside blood purification device is the key point for the smooth proceeding of the treatment. The monitoring system of the blood purification device can ensure the safety of patients in the treatment process, and when abnormal states occur in the treatment process of the patients, the machine can prompt medical staff through alarming. However, the machine frequently gives an alarm, so that the treatment process of a patient is interrupted, the blood pump stops running, blood stays outside the body of the patient, the risk of occurrence of a blood coagulation event is increased, and serious patients even threaten the life of the patient; meanwhile, the frequent alarming sound makes the patient and family members feel panic. The pressure alarm ratio is the highest, the pressure alarm is mainly caused by insufficient blood flow, and the most common reason for causing the insufficient blood flow in clinic is the problem of blood vessel access, such as catheter adherence, so that the blood leading pipeline is adjusted to be at a proper position during blood purification treatment, and the proper blood flow is guaranteed to be the premise of continuous blood purification technology treatment. A three-way device and a bag of normal saline are additionally connected to the blood leading pipeline and the blood purifying device commonly used in clinic, and when the catheter adheres to the wall, the three-way position is rotated to lead the normal saline to be led into the blood purifying device, so that the problem of unsmooth blood leading caused by the adhesion is solved. However, this procedure increases the patient fluid intake and does not allow monitoring of accurate fluid intake; the operation cannot be intelligentized, manual operation is required, and automation cannot be realized. In view of this, we propose an automated device to solve the problem of blood purification and blood introduction.

Disclosure of Invention

The utility model aims to provide an automatic device for solving the unsmooth blood purification and leading, which aims to solve the problems that the liquid input of a patient is increased and the accurate liquid input cannot be monitored in the background technology; the operation can not be intelligentized, manual operation is required, and automation can not be realized.

In order to realize the above-mentioned purpose, on the one hand, the utility model provides a solve blood purification and draw unsmooth automation equipment of blood, include the mounting panel, install the tee bend device and the setting of mounting panel one side are in the normal saline placer at tee bend device top, tee bend device includes the connecting pipe, the outer wall of connecting pipe is provided with three branch pipe, the outer wall of branch pipe is provided with the external screw thread, the left and right sides of connecting pipe is provided with respectively and draws blood takeover and blood purification device takeover, the top of connecting pipe is provided with the valve pipe fitting, draw the blood takeover the blood purification device takeover with the inner wall of valve pipe fitting is provided with the internal thread respectively, the top of valve pipe fitting is provided with the intubate, the slider is installed to the dorsal part of connecting pipe.

Preferably, the external thread and the internal thread are threadedly connected.

Preferably, the cannula and the valve tube are in communication.

Preferably, the upper end and the lower end of the mounting plate are respectively provided with a mounting screw, the outer surface of the mounting plate is provided with a linear chute, the side wall of the mounting plate is provided with a side chute, an inner groove is formed in the side chute, the mounting plate is close to one side of the side chute and is provided with a locking device, the locking device comprises a positioning ring arranged in the side chute, the outer wall of the positioning ring is provided with a sliding column, and a stud is arranged in the positioning ring.

Preferably, the spool is slidably engaged with the inner tank.

Preferably, the retaining ring and the side groove are in sliding fit.

Preferably, the saline solution containing device comprises a clamping plate clamped on one side of the mounting plate, positioning bolts are respectively mounted at the upper end and the lower end of the clamping plate, a containing frame is arranged on one side of the clamping plate, a bottom plate is arranged at the bottom of the containing frame, a flow display screen is arranged on one side of the clamping plate, the bottom plate comprises a weighing plate, side plates are respectively arranged on two sides of the weighing plate, and a through hole is formed in the center of the weighing plate.

Preferably, the clamping plate and the mounting plate are a sliding fit.

Preferably, the side plate and the placement frame are closely adhered.

On the other hand, the utility model also provides an operating procedure of solving blood purification and drawing unsmooth automation equipment of blood, including above-mentioned arbitrary one solution blood purification draw unsmooth automation equipment of blood, concrete operating procedure as follows:

s1, installation: respectively screwing a blood leading connecting pipe, a blood purifying device connecting pipe and a valve pipe fitting onto the branch pipe, connecting a blood leading pipeline onto the blood leading connecting pipe, connecting the blood purifying device connecting pipe into an automatic device for solving the problem of unsmooth blood purification and leading, and inserting an insertion pipe of the valve pipe fitting into a physiological saline bag;

s2, pressure monitoring: the pressure sensor is used for acquiring the pressure value in the connecting pipe through the data acquisition module, the pressure signal acquired by the data acquisition module is subjected to digital conversion through the A/D conversion module, the frequency signal output by the A/D conversion module is subjected to data processing through the data processing module, the air pressure value is calculated through the relation between the frequency and the air pressure, the detected pressure signal is subjected to digital display through the data display module, the threshold value setting module is used for setting a pressure threshold value, when the pressure threshold value is exceeded, an alarm is sent out through the abnormity alarm module, meanwhile, the electromagnetic valve in the valve pipe fitting is controlled to work through the electromagnetic valve control module, physiological saline is injected into the connecting pipe, appropriate blood flow is ensured, and the continuous blood purification effect is improved;

s3, discharge liquid amount shows: the weight of the physiological saline bag is detected through the weight acquisition module, the analog signals of the weight acquisition module are converted into recognizable digital signals through the single chip microcomputer module, the weight digital signals acquired by the weight acquisition module are converted into flow information through the flow algorithm module, and the flow of liquid flowing out is digitally displayed through the display screen module.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this solve blood purification and draw unsmooth automation equipment of blood, through the intubate with the valve pipe fitting insert the normal saline bag in, when taking place the pipe adherence, blood purification device takes over the internal pressure great, pours into normal saline into the connecting tube into, guarantees suitable blood flow, improves continuity blood purification effect.

2. This solve blood purification and draw unsmooth automation equipment of blood, through the inside pressure value of data acquisition module collection connecting pipe, through the solenoid valve work in the solenoid valve control module control valve pipe fitting, realize the automatic work of pouring into normal saline into, realize the work automation.

3. This solve unsmooth automation equipment of blood purification draw blood detects the weight of physiological saline bag through weight collection module, turns into flow information through the weight digital signal of flow algorithm module to weight collection module collection, carries out the digital display to the flow that liquid flows out through the display screen module, can show the flow data of liquid, detects accurate liquid income volume.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the three-way device of the present invention;

fig. 3 is a schematic structural view of a three-way device in embodiment 2 of the present invention;

FIG. 4 is a block diagram of the pressure detection process of the present invention;

FIG. 5 is a circuit diagram of the data acquisition module of the present invention;

FIG. 6 is a circuit diagram of the A/D conversion module of the present invention;

FIG. 7 is a circuit diagram of a data processing module according to the present invention;

FIG. 8 is a pin diagram of a data processing module according to the present invention;

fig. 9 is a circuit diagram of a data display module according to the present invention;

fig. 10 is a circuit diagram of an abnormal alarm module according to the present invention;

fig. 11 is a circuit diagram of a solenoid valve control module of the present invention;

fig. 12 is a view of the mounting plate of the present invention;

fig. 13 is an enlarged view of the structure at a in fig. 12 according to the present invention;

fig. 14 is an exploded view of the locking device structure of the present invention;

fig. 15 is a schematic structural view of the saline solution containing device of the present invention;

fig. 16 is a schematic structural view of the bottom plate of the present invention;

FIG. 17 is a block diagram of a liquid outflow detection module according to the present invention;

fig. 18 is a circuit diagram of the weight collection module of the present invention;

fig. 19 is a circuit diagram of the display screen module of the present invention.

In the figure: 1. mounting a plate; 11. mounting screws; 12. a linear chute; 13. a side chute; 14. an inner tank; 2. a tee joint device; 21. a connecting pipe; 22. pipe distribution; 23. an external thread; 24. a blood leading connecting pipe; 25. a blood purification device connection tube; 26. a valve pipe fitting; 27. an internal thread; 28. inserting a tube; 29. a slider; 210. positioning holes; 211. a pressure display screen; 3. a locking device; 31. a positioning ring; 32. a traveler; 33. a stud; 4. a saline solution placing device; 41. a splint; 42. positioning the bolt; 43. placing the frame; 44. a base plate; 441. a weighing plate; 442. a side plate; 443. a through hole; 45. and a flow display screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example 1

On one hand, the utility model provides an automatic device for solving the blood purification and leading blood unsmooth, as shown in figure 1 and figure 2, comprising a mounting plate 1, a three-way device 2 arranged on one side of the mounting plate 1 and a physiological saline placing device 4 arranged on the top of the three-way device 2, the three-way device 2 comprises a connecting pipe 21, the outer wall of the connecting pipe 21 is provided with three branch pipes 22, the outer wall of the branch pipe 22 is provided with an external thread 23, the left side and the right side of the connecting pipe 21 are respectively provided with a blood leading connecting pipe 24 and a blood purification device connecting pipe 25, the top of the connecting pipe 21 is provided with a valve pipe 26, the inner walls of the blood leading connecting pipe 24, the blood purification device connecting pipe 25 and the valve pipe 26 are respectively provided with an internal thread 27, the top of the valve pipe 26 is provided with an insertion pipe 28, the back side, the cannula 28 communicates with the valve tube 26.

In this embodiment, the valve pipe 26 is a pipeline ball valve, which facilitates controlling the communication state between the valve pipe 26 and the connection pipe 21.

Specifically, the blood leading connecting pipe 24, the blood purifying device connecting pipe 25 and the valve pipe 26 are internally provided with annular sealing rings, so that the blood leading connecting pipe 24, the blood purifying device connecting pipe 25 and the valve pipe 26 are respectively arranged on the three branch pipes 22, the whole sealing performance is good, and air is prevented from entering the branch pipes 22.

The blood introducing connecting tube 24 is communicated with the blood purifying device connecting tube 25 through the connecting tube 26, so that the blood can be conveniently merged through the blood introducing connecting tube 24 and the connecting tube 26 and then enters the blood purifying device through the blood purifying device connecting tube 25.

When the automatic device for solving the problem of blood purification and blood guiding disorder in the embodiment is installed, the blood guiding connection tube 24, the blood purification device connection tube 25 and the valve tube 26 are respectively screwed into the branch tube 22, the blood guiding pipeline is connected to the blood guiding connection tube 24, the blood purification device connection tube 25 is connected into the automatic device for solving the problem of blood purification and blood guiding disorder, the insertion tube 28 of the valve tube 26 is inserted into the physiological saline bag, the valve tube 26 is in a locking state at ordinary times, the blood guiding pipeline guides blood from the blood guiding connection tube 24 into the connection tube 21, the liquid continuously flows into the automatic device for solving the problem of blood purification and blood guiding disorder through the blood purification device connection tube 25, continuous blood purification is realized, when a catheter occurs, insufficient blood flow is caused, meanwhile, the pressure in the blood purification device connection tube 25 is large, the valve tube 26 is rotated, and the valve tube 26 is in a communicating state, the normal saline is injected into the connecting pipe 21, so that proper blood flow is ensured, and the continuous blood purification effect is improved.

Example 2

As the utility model discloses a second kind of embodiment, in order to facilitate the pressure to connecting pipe 21 to monitor, and realize valve pipe fitting 26 automated work, the utility model discloses the personnel improve connecting pipe 21, as a preferred embodiment, as shown in fig. 3 and fig. 4, be provided with the data acquisition module that is used for intraductal pressure to detect in connecting pipe 21, the outer wall of connecting pipe 21 still is provided with pressure display screen 211, is provided with AD conversion module, data processing module, data display module, threshold value setting module, unusual alarm module and solenoid valve control module in the pressure display screen 211, is provided with the solenoid valve in the valve pipe fitting 26.

In this embodiment, the data acquisition module is composed of an air pressure sensor MPX4115, wherein pin 1 is an output signal terminal, and outputs an analog voltage signal corresponding to an air pressure value, the data acquisition module circuit is as shown in fig. 5, the MPX4115 series piezoresistance sensor is a silicon pressure sensor, the MPX4115 sensor combines an advanced micro-motor technology, the thin film is plated with metal, and can provide an equilibrium pressure for a high-level analog output signal, the error does not exceed 1.5% at a temperature of 0 ℃ to 85 ℃, the temperature compensation is-40 ℃ to 125 ℃, and the data acquisition module is used for acquiring the internal pressure value of the connecting pipe 21.

Further, since the pressure sensor MPX4115 outputs an analog voltage, it must be converted from analog to digital to be processed by the single chip, in this embodiment, an a/D conversion module is used to perform digital conversion on the pressure signal acquired by the data acquisition module, the a/D conversion module is designed by an ADC0832 chip, the ADC0832 is an 8-bit resolution and dual-channel a/D conversion chip manufactured by national semiconductor company of america, a circuit of an a/D converter formed by the ADC is shown in fig. 6, pin 2 in fig. 6 is an input after data acquisition, pin 5 and pin 6 are outputs of the converted signals, the ADC0832 is an 8-bit resolution a/D conversion chip, the highest resolution of which can reach 256 levels, and can meet the requirement of general analog quantity conversion, and the internal power input and reference voltage are multiplexed, so that the analog voltage input of the chip is between 0V and 5V, the conversion time of the chip is only 32 muS, the independent chip enables input, the hooking of multiple devices and the control of a processor are more convenient, the selection of channel functions can be easily realized through a DI data input end, under normal conditions, 4 data lines are required to be used as the interfaces of the ADC0832 and the single chip microcomputer, namely CS, CLK, DO and DI, but because the DO end and the DI end are not simultaneously effective during communication and are bidirectional with the interface of the single chip microcomputer, the DO and the DI can be connected in parallel on one data line for use during circuit design.

Specifically, the data processing module is configured to perform data processing on the frequency signal output by the a/D conversion module, and calculate the air pressure value according to the relationship between the frequency and the air pressure, in this embodiment, the data processing module is designed based on an AT89C52 single chip microcomputer, the AT89C52 is a low-voltage, high-performance CMOS 8-bit single chip microcomputer, a read only program memory PEROM that is erasable and rewritable and 4kbytes is contained in a chip, and a random access data memory RAM that is 128bytes in a chip, the device is produced by using a high-density, nonvolatile storage technology of ATMEL corporation, and is compatible with a standard MCS-51 instruction system, a general 8-bit central processing unit CPU and a Flash storage unit are contained in a chip, and the circuit is powerful as shown in fig. 7.

It is worth to be noted that, the pin AT89C52 is shown in fig. 8, wherein Vcc is connected to a +5V power supply to provide power for the chip; vss is grounded; XTAL1 is in the single chip, it is the input end of a reverse amplifier, the amplifier forms the oscillator in the chip, can provide the clock control signal of the single chip; XTAL2 is in the single-chip microcomputer, connect to the reverse output terminal of the above-mentioned oscillator; RSR/VPD9 pin: the high level of the reset signal input end is effective, when the oscillator runs, the high level of two machine periods is added to the pin to reset the single chip microcomputer REST, and the level of the pin is kept to be a low level which is not higher than 0.5V after reset so as to ensure the normal work of the single chip microcomputer; ALE/PROG: ALE is an address latch enable signal; PSEN: the program memory allows the control terminal to be output. The output is a read strobe signal for accessing an external program memory in a single chip, PSEN is effective twice in each machine cycle during the period of fetching instructions or constants from the external program memory, but during the period, the two effective PSEN signals will not appear when the external data memory is accessed, and PSEN can drive 8 LSTTL loads; ALE/PROG: ALE is an address latch permission signal, during power-down, the pin can be connected with a standby power supply VPD to keep data in the internal RAM from being lost, and when Vcc is reduced to be lower than a specified value and VPD is 5 +/-0.5V in a specified voltage range, the VPD provides the standby power supply for the internal RAM; EA/VPP: the EA function is that the internal and external program memories select a control end, when the EA end keeps high level, the single chip microcomputer accesses the internal program memory, but automatically turns to execute a program in the external program memory when the PC value exceeds 0 FFFH; P0P0.0-P0.7 is an 8-bit three-state bidirectional I/O port, which is used as a general I/O port for transmitting the input/output data of CPU when the backlog memory is not accessed, and when the external memory is accessed, the port is an address bus line lower 8-bit and data bus line time-sharing multiplexing port, which can carry 8 LSTTL loads; P1P1.0-P2.7 is an 8-level bidirectional I/O port with internal pull-up resistor and 4 LSTTL loads; P2P2.0-P2.7 is an 8-level bidirectional I/O port that is multiplexed with 8 bits up the address bus line to drive 4 LSTTL loads.

In addition, the data display module is used for carrying out the digital display to the pressure signal that detects, and the data display module is based on LCD1602 design, and LCD1602 can show two lines, 16 characters in every line, adopts +5V power supply, and peripheral circuit configuration is simple, and the low price has very high price/performance ratio, and its circuit is as shown in fig. 9, the peripheral pin and the effect of LCD 1602:

item 1: VSS is ground power;

and a 2 nd pin: VDD is connected with a 5V positive power supply;

and a 3 rd leg: v0 is the contrast adjusting terminal of the LCD, when connected to the positive power supply, the contrast is weakest, when connected to the ground power supply

The contrast ratio is highest, ghost image can be generated when the contrast ratio is too high, and the contrast ratio can be adjusted through a potentiometer of 10K when the device is used;

and 4, a 4 th pin: RS is register selection, a data register is selected when the level is high, and an instruction register is selected when the level is low;

and a 5 th pin: RW is read-write signal line, read operation is carried out when high level, write operation is carried out when low level, when RS and RW are low level together, command or display address can be written, when RS is low level, RW is high level, busy signal can be read, when RS is high level, RW is low level, data can be written;

and a 6 th pin: the end E is an enabling end, and when the end E jumps from a high level to a low level, the liquid crystal module executes a command;

7 th to 14 th pins: D0-D7 are 8-bit bidirectional data lines;

15 th to 16 th pins: and (4) empty feet.

In addition, the threshold setting module is used for setting a pressure threshold, and when the pressure threshold is exceeded, an alarm is given through the abnormal alarm module, and meanwhile, the solenoid valve in the valve pipe 26 is controlled to work through the solenoid valve control module.

Specifically, the abnormal alarm module circuit is shown in fig. 10, the solenoid valve control module circuit is shown in fig. 11, and the maximum starting current of 4 normally open oil inlet solenoid valves of the ABS pressure regulator is about 3.6A; the maximum starting current of the 4 normally closed oil outlet electromagnetic valves is about 2.4A, the working voltage of L9349 is 4.5-32V, the internal resistance of two channels is 0.2 omega, and the maximum load current is 3A; the internal resistance of the other two paths is 0.3 omega, the maximum load current is 5A, the driving current requirements of normally open and normally closed electromagnetic valves of the ABS can be met just, and the lower conduction internal resistance can ensure low power consumption, so that the L9349 is very suitable for driving and controlling the electromagnetic valves of the ABS, in the graph 10, each L9349 can drive 4 electromagnetic valves to work, belongs to typical low-end driving, and provides 12V power supply voltage for a chip through a Vs port; when PWM control signals are supplied to input ends IN 1-IN 4, the output ends can be conveniently controlled to drive 4 paths of electromagnetic valves to work, the maximum driving capacity of ports OUT1 and OUT2 is 5A, and the ports are connected with normally closed electromagnetic valves of the ABS; the maximum driving capacity of the ports OUT3 and OUT4 is 3A, and the ports OUT3 and OUT4 are connected with an ABS normally open electromagnetic valve and cannot be reversely connected; the EN port is an enabling end and can be used for quickly closing the chip through the MCU; the separation of the L9349 from digital and analog improves the immunity of the driver module to interference.

The automatic device's that solves blood purification and draws blood unsmooth in this embodiment connecting pipe 21 is when pressure detection, gather the inside pressure value of connecting pipe 21 through data acquisition module, carry out digital conversion to the pressure signal that data acquisition module gathered through the AD conversion module, carry out data processing to the frequency signal of AD conversion module output through data processing module, calculate the atmospheric pressure value through the relation between frequency and the atmospheric pressure, carry out the digital display to the pressure signal who detects through data display module, be used for setting for the pressure threshold value through the threshold value setting module, when exceeding the threshold value, send the warning through unusual alarm module, simultaneously, solenoid valve work in the solenoid valve control module control valve pipe fitting 26.

Example 3

As a third embodiment of the present invention, the height position of the three-way device 2 is adjusted, the utility model discloses the personnel make the improvement to the structure of the mounting panel 1, as an optimal embodiment, as shown in fig. 12-14, the upper and lower both ends of the mounting panel 1 are provided with mounting screw 11 respectively, straight line spout 12 has been seted up to the surface of mounting panel 1, side spout 13 has been seted up to the lateral wall of mounting panel 1, inside groove 14 has been seted up to the inside of side spout 13, mounting panel 1 is provided with locking device 3 near side spout 13 one side, locking device 3 is including being provided with the inside holding ring 31 of side spout 13, the outer wall of holding ring 31 is provided with traveller 32, the inside of holding ring 31 is provided with double-screw bolt 33, traveller 32 and inside groove 14 sliding fit, holding ring.

In this embodiment, a screw thread adapted to the stud 33 is disposed in the positioning ring 31, so that the stud 33 and the positioning ring 31 are screwed together.

Further, the sliding block 29 is in sliding fit with the linear sliding groove 12, so that the sliding block 29 can conveniently slide in the linear sliding groove 12, and the linear sliding of the three-way device 2 on the mounting plate 1 is realized.

Specifically, the stud 33 is in threaded connection with the positioning hole 210, so that the stud 33 can be screwed into the positioning hole 210 to lock and fix the three-way device 2.

When the locking device 3 of the automatic device for solving the problem of unsmooth blood purification and blood diversion in the embodiment is used, the three-way device 2 is pushed to slide in the linear sliding groove 12 through the sliding block 29, so that the integral height of the three-way device 2 is convenient to adjust, after the three-way device 2 is adjusted in position, the positioning ring 31 is pushed to one side of the sliding block 29 of the three-way device 2, the stud 33 is screwed in from one side of the positioning ring 31 at the moment, and the stud 33 is screwed into the positioning hole 210, so that the three-way device 2 is fixed.

Example 4

As the fourth embodiment of the present invention, in order to place the normal saline bag, and show the discharged liquid volume of the normal saline bag, the utility model discloses the personnel improve normal saline placer 4, as a preferred embodiment, as shown in fig. 15-17, normal saline placer 4 includes splint 41 of centre gripping in mounting panel 1 one side, positioning bolt 42 is installed respectively at the upper and lower both ends of splint 41, one side of splint 41 is provided with places frame 43, the bottom of placing frame 43 is provided with bottom plate 44, one side of splint 41 is provided with flow display screen 45, bottom plate 44 includes weighing plate 441, the both sides of weighing plate 441 are provided with curb plate 442 respectively, through-hole 443 has been seted up to the central point of weighing plate 441, splint 41 and mounting panel 1 sliding fit, curb plate 442 and place frame 43 and closely bond.

In this embodiment, the cross-section of the clamping plate 41 is concave, so that the clamping plate 41 can be clamped on the side wall of the mounting plate 1.

Further, splint 41 adopts the plastics material to make, and its material has certain toughness for splint 41 has certain elasticity, is convenient for splint 41 centre gripping on the mounting panel 1 lateral wall, and can slide on splint 41.

Specifically, a plurality of weight acquisition modules are embedded in the weighing plate 41, the weight acquisition modules are designed based on a WSD monocrystalline silicon piezoresistive pressure sensor and are used for acquiring weight data on the weighing plate 41, the WSD monocrystalline silicon piezoresistive pressure sensor adopts a monocrystalline silicon wafer as an elastic element, a group of equivalent resistors are diffused in a specific direction of monocrystalline silicon on the monocrystalline silicon wafer by using an integrated circuit process, the resistors are connected into a bridge circuit, the monocrystalline silicon wafer is placed in a sensor cavity, when pressure changes, monocrystalline silicon strains, strain resistors directly diffused on the monocrystalline silicon wafer generate changes in direct proportion to the measured pressure, corresponding voltage output signals are obtained by the bridge circuit, and a circuit of the weighing plate is shown in fig. 18.

It is worth to be noted that a single chip module, a flow algorithm module and a display screen module are arranged in the flow display screen 45.

Specifically, the single chip microcomputer module is used for converting the analog signal to the weight acquisition module into recognizable digital signal, and the single chip microcomputer module in this embodiment adopts the model that Shenzhen xinlian science and technology Limited company produced to be STC12C5410 AD's singlechip, and its supporting circuit also can be provided by this producer, in addition, the utility model discloses in relate to circuit and electronic components and module be prior art, technical staff in the field can realize completely, need not proud, the utility model discloses the content of protection also does not relate to the improvement to software and method.

Specifically, the flow algorithm module is used for converting the weight digital signals acquired by the weight acquisition module into flow information, and the formula of the flow algorithm module is as follows:

in the formula, V is the flow rate of the effluent liquid, M is the mass of the effluent liquid, and M is the density of the effluent liquid.

In this embodiment, the display module is used for digitally displaying the flow of the liquid outflow, the display module in this embodiment adopts the model of LCD1602 liquid crystal display manufactured by shenzhen jingdi electronics limited company, and its matching circuit can also be provided by the manufacturer, besides, the present invention relates to the circuits, electronic components and modules which are all the prior art, the technical personnel in the field can completely realize the method without redundancy, the protection content of the present invention also does not relate to the improvement of software and method, the circuit connection diagram of the display module and the single chip microcomputer module is shown in fig. 19, the single chip microcomputer output end of STC12C5410AD is connected with the LCD1602 liquid crystal display through a control circuit a, the control circuit a includes a 1602 liquid crystal register, and the third pin on the 1602 liquid crystal register is grounded through a 10K potentiometer R1, the fifteenth pin is connected with the power supply through a 1K resistor R2, the data/command selection end RS is electrically connected with the output interface of the single chip microcomputer 35, and the enabling end EN is connected with the output interface of the single chip microcomputer 35, so that the flow display screen 45 can display the flow data of liquid and detect the accurate liquid input amount.

When the automatic device for solving the problem of unsmooth blood purification and blood diversion in the embodiment monitors the liquid outflow, the saline bag is placed on the weighing plate 441 of the placing frame 43, the weight of the saline bag is detected through the weight acquisition module, the analog signal of the weight acquisition module is converted into a recognizable digital signal through the single chip microcomputer module, the weight digital signal acquired by the weight acquisition module is converted into flow information through the flow algorithm module, and the digital display is performed on the liquid outflow flow through the display screen module.

On the other hand, the utility model also provides an operating procedure of solving blood purification and drawing unsmooth automation equipment of blood, including above-mentioned arbitrary one solution blood purification draw unsmooth automation equipment of blood, concrete operating procedure as follows:

s1, installation: respectively screwing a blood leading connecting pipe 24, a blood purifying device connecting pipe 25 and a valve pipe fitting 26 onto the branch pipe 22, connecting a blood leading pipeline onto the blood leading connecting pipe 24, connecting the blood purifying device connecting pipe 25 into an automatic device for solving the problem of unsmooth blood purification and leading, and inserting an insertion pipe 28 of the valve pipe fitting 26 into a physiological saline bag;

s2, pressure monitoring: the pressure sensor is characterized in that the pressure sensor is used for acquiring the internal pressure value of the connecting pipe 21 through the data acquisition module, the pressure signal acquired by the data acquisition module is subjected to digital conversion through the A/D conversion module, the frequency signal output by the A/D conversion module is subjected to data processing through the data processing module, the air pressure value is calculated through the relation between the frequency and the air pressure, the detected pressure signal is subjected to digital display through the data display module, the threshold value setting module is used for setting a pressure threshold value, when the threshold value is exceeded, an alarm is sent out through the abnormity alarm module, meanwhile, the electromagnetic valve in the valve pipe fitting 26 is controlled to work through the electromagnetic valve control module, and physiological saline is injected into the connecting pipe 21, so that the proper blood flow is ensured;

s3, discharge liquid amount shows: the weight of the physiological saline bag is detected through the weight acquisition module, the analog signals of the weight acquisition module are converted into recognizable digital signals through the single chip microcomputer module, the weight digital signals acquired by the weight acquisition module are converted into flow information through the flow algorithm module, and the flow of liquid flowing out is digitally displayed through the display screen module.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (9)

1. The utility model provides a solve blood purification and draw unsmooth automation equipment of blood, includes mounting panel (1), installs tee bend device (2) and the setting of mounting panel (1) one side are in saline solution placer (4) at tee bend device (2) top, its characterized in that: tee bend device (2) are including connecting pipe (21), the outer wall of connecting pipe (21) is provided with three branch pipe (22), the outer wall of branch pipe (22) is provided with external screw thread (23), the left and right sides of connecting pipe (21) is provided with respectively draws blood takeover (24) and blood purification device takeover (25), the top of connecting pipe (21) is provided with valve pipe fitting (26), draw blood takeover (24) blood purification device takeover (25) with the inner wall of valve pipe fitting (26) is provided with internal thread (27) respectively, the top of valve pipe fitting (26) is provided with intubate (28), slider (29) are installed to the dorsal part of connecting pipe (21) and locating hole (210) have been seted up to slider (29) outer wall.

2. The automated device for solving the problem of poor blood purification and blood introduction according to claim 1, wherein: the external thread (23) and the internal thread (27) are in threaded connection.

3. The automated device for solving the problem of poor blood purification and blood introduction according to claim 1, wherein: the cannula (28) communicates with the valve tube (26).

4. The automated device for solving the problem of poor blood purification and blood introduction according to claim 1, wherein: mounting screws (11) are respectively arranged at the upper end and the lower end of the mounting plate (1), a linear sliding groove (12) is formed in the outer surface of the mounting plate (1), a side sliding groove (13) is formed in the side wall of the mounting plate (1), an inner groove (14) is formed in the side sliding groove (13), the mounting plate (1) is close to the side sliding groove (13) and is provided with a locking device (3), the locking device (3) comprises a positioning ring (31) arranged inside the side sliding groove (13), a sliding column (32) is arranged on the outer wall of the positioning ring (31), and a stud (33) is arranged inside the positioning ring (31).

5. The automated device for solving the problem of poor blood purification and blood introduction according to claim 4, wherein: the spool (32) is in sliding engagement with the inner tank (14).

6. The automated device for solving the problem of poor blood purification and blood introduction according to claim 4, wherein: the positioning ring (31) is in sliding fit with the side sliding groove (13).

7. The automated device for solving the problem of poor blood purification and blood introduction according to claim 1, wherein: normal saline placer (4) are in including the centre gripping splint (41) of mounting panel (1) one side, positioning bolt (42) are installed respectively to the upper and lower both ends of splint (41), one side of splint (41) is provided with places frame (43), the bottom of placing frame (43) is provided with bottom plate (44), one side of splint (41) is provided with flow display screen (45), bottom plate (44) are including weighing plate (441), the both sides of weighing plate (441) are provided with curb plate (442) respectively, through-hole (443) have been seted up to the central point of weighing plate (441).

8. The automated device for solving the problem of poor blood purification and blood introduction according to claim 7, wherein: the clamping plate (41) is in sliding fit with the mounting plate (1).

9. The automated device for solving the problem of poor blood purification and blood introduction according to claim 7, wherein: the side plate (442) and the placement frame (43) are tightly bonded.

Images