CN202096542U

CN202096542U - Liquid level detector for transfusion

Info

Publication number: CN202096542U
Application number: CN2011200993073U
Authority: CN
Inventors: 杨乐; 高超; 胡凯
Original assignee: Nanjing University of Information Science and Technology
Current assignee: Nanjing University of Information Science and Technology
Priority date: 2011-04-07
Filing date: 2011-04-07
Publication date: 2012-01-04
Anticipated expiration: 2021-04-07

Abstract

The utility model discloses a liquid level detector for transfusion, which comprises a liquid level detector and a remote monitoring platform, wherein the liquid level detector is fixed on a transfusion bag through a fixing device (4) and comprises a power supply module (6), a control module (5), a light intensity inductor (2), a luminous lamp tube (9), a wireless communication module (3), an indication lamp (7) and an observation and learning window (8); the liquid level detector for the transfusion does not need to be in direct contact with a liquid medicine, thereby avoiding pollution to the liquid medicine; and simultaneously, since a light sensitive diode array method is adopted, the detection precision is improved.

Description

A kind of transfusion liquid level detection device

Technical field

This utility model relates to a kind of transfusion liquid level detection device, a kind of transfusion liquid level detection device based on the photodiode array of more specifically saying so.

Technical background

Traditional infusion set needs medical personnel, families of patients and patient's Real Time Observation transfusion situation, if transfusion finish still not find, be prone to the blood back phenomenon, serious even threaten patient's life security.Medical personnel's shortage of China, a nurse need look after a plurality of patients, adopts conventional artificial to check infusion model, is unfavorable for improving nurse's work efficiency.When patient more for a long time, even possibly cause malpractice.

Whether present infusion alarm adopt usually electrode method, optical detection, drop count technique and check weighing method detect residue medicinal liquid in the transfusion bag, and the electrode method is that 2 electrodes are inserted transfusion bag, utilize the faint electric conductivity of medicinal liquid to detect medicinal liquid and use up; Optical detection is that the optical detection buoy is placed liquid medicine, and when liquid level was reduced to assign thresholds, buoy blocking light path caused warning.This dual mode all needs to detect thing inserts in the liquid medicine, cause liquid medicine to pollute easily, and drop count technique and check weighing method precision is not high, are prone to cause the liquid medicine waste.

The utility model content

The technical problem that this utility model will solve provides a kind of transfusion liquid level detection device, when utilizing this device to carry out Level Detection, need not directly to contact with medicinal liquid, avoids medicinal liquid is polluted.

For solving the problems of the technologies described above, this utility model adopts following technical scheme:

A kind of transfusion liquid level detection device; Comprise liquid level detection device and remote monitoring platform; Wherein liquid level detection device is installed on the transfusion bag through fixture, and this liquid level detection device comprises control module, light intensity induction apparatus, luminous lamp tube, wireless communication module, power module, display lamp and views and emulates window.

Luminous lamp tube is positioned at liquid level detection device one side, for the light intensity induction apparatus provides lighting source;

The light intensity induction apparatus is positioned at the opposite side and the corresponding position of luminous lamp tube of liquid level detection device, is used for receiving light power information;

Wireless communication module sends to remote monitoring platform with the liquid level information that control module calculates;

Control module is used for control and coordinates other each module work in unity;

Power module is whole liquid level detection device power supply;

Remote monitoring platform is a computer terminal.

Further, in the transfusion liquid level detection device of this utility model, fixture adopts rigid plastics to make, and is used for the infusion test device is fixed on transfusion bag on the one hand, can shield the influence of external light source on the other hand, improves the Level Detection precision;

Further, in the transfusion liquid level detection device of this utility model, control module adopts the MSP430 chip, characteristics such as that the MSP430 chip has is low in energy consumption, fast operation;

Further, in the transfusion liquid level detection device of this utility model, the light intensity induction apparatus adopts the GaAsP light sensitive diode that forms a line to make photo-sensitive cell from top to bottom;

Further, in the transfusion liquid level detection device of this utility model, wireless communication module adopts the CC2420 chip;

Further, in the transfusion liquid level detection device of this utility model, power module is provided with the interface that connects external power supply;

Further, in the transfusion liquid level detection device of this utility model, display lamp comprises red led and green indicating lamp.

This utility model adopts above technical scheme to have the following advantages:

Liquid level detection device need not directly to contact with medicinal liquid; Avoided pollution, adopted the photodiode array approach, improved accuracy of detection medicinal liquid; Medical personnel can monitor a plurality of transfusion bag transfusion states at synchronization, have improved medical personnel's work efficiency greatly.

Description of drawings

Fig. 1 is the combinative structure sketch map of this utility model infusion test device;

Fig. 2 is this utility model fuction monitoring device for infusion user mode figure;

Fig. 3 is this utility model infusion test device flow chart;

Fig. 4 is this utility model remote monitoring platform program interface figure;

Label declaration in the accompanying drawing: 1 transfusion bag, 2 light intensity induction apparatuss, 3 wireless communication modules, 4 fixtures, 5 control modules, 6 power modules, 7 display lamps, 8 view and emulate window, 9 luminous lamp tubes.

The specific embodiment

Like Fig. 1, Fig. 2, shown in Figure 3; This utility model liquid level detection device is fixed on the transfusion bag through fixture 4; This liquid level detection device comprises light intensity induction apparatus 2, wireless communication module 3, control module 5, power module 6, display lamp 7, views and emulates window 8 and luminous lamp tube 9; Wherein luminous lamp tube 9 is positioned at a side of liquid level detection device, for light intensity induction apparatus 2 provides lighting source; Light intensity induction apparatus 2 is positioned at the opposite side and the luminous lamp tube 9 corresponding positions of liquid level detection device, is used for receiving light power information.

Control module 5 adopts the MSP430 chip; Characteristics low in energy consumption, fast operation that this chip has; Control module 5 has powerful CPU core; Link to each other other each module work of united and coordinating respectively with luminous lamp tube 9, light intensity induction apparatus 2, wireless communication module 3, power module 6 and display lamp 7.

Wireless communication module 3 adopts the CC2420 chip; This chip is the radio transmitting and receiving chip of a compatible 2.4GHZ IEEE802.15.4; Wherein main control module 5 works in holotype; Wireless communication module 3 works in from pattern, and the pin CSN of CC2420, SI, SO, SCLK link to each other with pin STE, SIMO, SOMI, the UCLK of MSP430 respectively, and the CC2420 chip is ordered through SPI port and MSP430 swap data, transmission; Pin SFD, FIFO, FIFOP and the CCA of CC2420 link to each other with Timer Capture, GIO0, Interrupt, the GIO1 pin of main control module respectively in addition, are used for the reiving/transmitting state of control module inquiry wireless communication module 3.

Power module 6 adopts the external power supply mode, and external 220 voltages are separately converted to 5V, 3.6V and 1.8V voltage through blood pressure lowering mode one by one, is other each module for power supply; When external power supply cuts off the power supply, also can use No. 5 batteries of 2 joints to be power devices.

Light intensity induction apparatus 2 adopts 20 GaAsP light sensitive diodes that form a line as photo-sensitive cell from top to bottom; The advantage of GaAsP light sensitive diode is that response speed is fast; Spectral sensitivity characteristic need not add the ultraviolet cutoff light filter near visible light, and the light intensity that light intensity induction apparatus 2 is sensed 20 light sensitive diodes is transferred to control module 5; Control module 5 whenever scans the light intensity signal of all light sensitive diodes at a distance from 5 seconds; Seek the pairing light sensitive diode numbering of minimum, calculate the current liquid level position in the transfusion bag, through wireless communication module 3 liquid level position is sent to remote monitoring platform then.

When infusion set breaks down or medical personnel when hoping the perusal transfusion state, can observe sufferers transfusion situation through viewing and emulating window 9.

Display lamp 7 comprises red led and green indicating lamp, and this display lamp 7 is used for liquid level warning, and when liquid level was in normal liquid level scope, green indicating lamp was bright; When liquid level was lower than a certain setting value, red led was bright.

During use, transfusion bag is placed in the infusion test device logical going up after the power supply; The luminous lamp tube 9 of liquid level detection device one side provides stabilized light source for light intensity induction apparatus 2; The transfusion bag opposite side uses a plurality of light sensitive diodes to form the light intensity induction apparatus 2 of arrays as photo-sensitive cell because refraction effect takes place in light through transfusion bag liquid level separating surface the time, light intensity that this separating surface receives a little less than; Through light intensity induction apparatus 2 receiving light power signals; The light intensity variation that receives is passed to

control module

5, and 5 every separated set times of control module calculate the current liquid level position in the transfusion bag according to the light intensity signal change curve, and through wireless communication module 3 transfer of data are arrived remote monitoring platform; Medical personnel can be through the pictorial display interface of remote monitoring platform, the transfusion state of a plurality of sufferers of real-time monitored.

As shown in Figure 4; Remote monitoring platform is installed in medical personnel's night shift room; Hardware device is a high-performance PC, and remote monitoring platform receives the data from the monitoring infusion device through network, and gives medical personnel with data through the diagram plots interface display; Medical personnel can detect transfusion state in real time through graphical interfaces, need not to go in person transfusion room to carry out manual work and check.

Claims

One kind the transfusion liquid level detection device; Comprise liquid level detection device and remote monitoring platform; It is characterized in that: said liquid level detection device is fixed on the transfusion bag through fixture (4), and this liquid level detection device comprises power module (6), control module (5), light intensity induction apparatus (2), luminous lamp tube (9), wireless communication module (3), display lamp (7) and views and emulates window (8);

Said power module (6) is whole liquid level detection device power supply;

Said luminous lamp tube (9) is positioned at liquid level detection device one side, for light intensity induction apparatus (2) provides lighting source;

Said light intensity induction apparatus (2) is positioned at the opposite side and the corresponding position of said luminous lamp tube (9) of liquid level detection device, is used for receiving light power information;

Said control module (5) is used for control and coordinates other each module work in unity;

Said wireless communication module (3) sends to remote monitoring platform with the liquid level information that said control module (5) calculates;

Said remote monitoring platform is a computer terminal.
2. transfusion liquid level detection device according to claim 1 is characterized in that: said fixture (4) adopts rigid plastics to make.
3. transfusion liquid level detection device according to claim 1 is characterized in that: said control module (5) adopts the MSP430 chip.
4. transfusion liquid level detection device according to claim 1 is characterized in that: said light intensity induction apparatus (2) adopts the GaAsP light sensitive diode that forms a line to make photo-sensitive cell from top to bottom.
5. transfusion liquid level detection device according to claim 1 is characterized in that: said wireless communication module (3) adopts the CC2420 chip.
6. transfusion liquid level detection device according to claim 1 is characterized in that: said power module (6) is provided with the interface that connects external power supply.
7. transfusion liquid level detection device according to claim 1 is characterized in that: said display lamp (7) comprises red led and green indicating lamp.