CN207457062U - Blood purification system urea content monitoring device - Google Patents
Blood purification system urea content monitoring device Download PDFInfo
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- CN207457062U CN207457062U CN201721448491.1U CN201721448491U CN207457062U CN 207457062 U CN207457062 U CN 207457062U CN 201721448491 U CN201721448491 U CN 201721448491U CN 207457062 U CN207457062 U CN 207457062U
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Abstract
The utility model discloses a kind of blood purification system urea content monitoring devices, the device includes box-like body, the container that the monochromatic light with solution inlet port to be measured and taphole to be measured can pass through is provided in box-like body, the one side of container is provided with monochrome light emission device；It is additionally included in the light splitting part set between monochrome light emission device and container, the monochromatic light that monochrome light emission device is sent is divided into two beams by light splitting part, first beam is received by monochromatic light first receiving device, and the second beam is received after the solution to be measured in container by the second reception device of monochromatic light.The utility model can measure the content of urea in dialysis waste liquid, have the advantages that real-time, online and non-contacting.
Description
Technical field
The utility model is related to a kind of the field of medical instrument technology, contain more particularly to a kind of blood purification system urea
Measure monitoring device.
Background technology
The final purpose of blood purification is exactly to remove the in vivo harmful substance of people, and weigh blood purification one is particularly significant
Index be exactly that the harmful substance that adequacy is eliminated one by one accounts for the percentage of harmful substance in blood.
Nearly ten years, the research on dialysis adequacy in chronic has had reached certain level both at home and abroad, and forms
The theory and engineering technology of comparative maturity in some blood purifications have weighed adequacy of hemodialysis with KT/V is measured
Through reaching common understanding substantially.The domestic and international scientist of measure on KT/V samples from traditional laboratory and surveys by long-term research
Method is determined, to conductance measurement method.All assay methods are all concentrated mainly on the assessment to the variation of urea content in blood
Carry out evaluating blood dialysis adequacy in chronic.
Method is measured by sampling for traditional laboratory, it is necessary to staff repeats cumbersome sampling and measuring experiment, and between the time
Every generally 20 minutes, and need to wait 30 minutes after haemodialysis, ability after urea content is stablized in blood
Carry out the measurement of urea content.Reflection dialysis treatment operation conditions in time is not achieved, is progressively substituted by new technology.
Conductance measurement method can change the level of conductivity of dialyzate, this can influence plasma ambient water in patient body
Flat, this detection method is also bad.
Utility model content
The utility model is intended at least solve technical problem in the prior art, especially innovatively proposes a kind of urine
Cellulose content monitoring device.
In order to realize the above-mentioned purpose of the utility model, the utility model provides a kind of urea content monitoring device, should
Device includes box-like body, and the monochromatic light with solution inlet port to be measured and taphole to be measured is provided in the box-like body
Permeable container is provided with monochrome light emission device in the one side of the container；
It is additionally included in the light splitting part set between the monochrome light emission device and container, the light splitting part is by monochrome
The monochromatic light that light light-emitting device is sent is divided into two beams, and the first beam is received by monochromatic light first receiving device, and the second beam is through in container
Solution to be measured after, by the second reception device of monochromatic light receive.
Before monitoring, solution inlet port to be measured is connected with the waste liquid port of dialyzer first, waste liquid port is connected with waste liquid collecting bag；
Two mouths can also additionally be increased on the outer membrane of dialyzer, be respectively dialyzate solution inlet port to be measured and dialyzate solution to be measured
Outlet, dialyzate solution inlet port to be measured are connected with solution inlet port to be measured, dialyzate taphole to be measured and taphole phase to be measured
Even, dress is received by the monochromatic light of monochromatic light emitting devices transmitting some strength, monochromatic light first receiving device and monochromatic light second
It puts detection respectively and receives monochromatic intensity, monochromatic light first receiving device is received into monochromatic intensity as benchmark, comparison
The second reception device of monochromatic light receives monochromatic intensity, and containing for urea in solution to be measured is indirectly calculated further according to biochemical calibration
Amount, while monochromatic light first receiving device is set to be conducive to prevent that the second reception device of monochromatic light or monochromatic light emitting devices are older
The problems such as ageing management or emitting performance are deteriorated.
In a kind of preferred embodiment of the utility model, the monochrome light emission device shines dress for ultraviolet
It puts.It is more accurate using deep UV light measurement.
In a kind of preferred embodiment of the utility model, light inlet and light-emitting window are provided on the container,
Entering light component is provided on light inlet, and the first sealing ring is provided between light inlet and entering light component；It is set on light-emitting window
Light extraction component is equipped with, and the second sealing ring is provided between light-emitting window and light extraction component；Second beam light successively through entering light component,
After solution to be measured and light extraction component, received by the second reception device of monochromatic light.Sealing ring is conducive to prevent the liquid in container from letting out
Leakage preferably makes entering light component and light extraction component be bonded container.
In a kind of preferred embodiment of the utility model, the container is that the container of closing or container open for upper end
The container of mouth.Container can prevent testing liquid of the container in any angle container from will not overflow or splashing for the container of closing
Go out；Container can reduce the waste of a plane materiel material for the container of upper end opening.
In a kind of preferred embodiment of the utility model, cylinder or sphere that the shape of container is.Be conducive to monochrome
Light reduces the loss of light, improves detection result perpendicular to incidence.
In a kind of preferred embodiment of the utility model, the container and light splitting part are to be made of identical material
's；
Or the material of entering light component, light extraction component and light splitting part is identical material.
In a kind of preferred embodiment of the utility model, container and light splitting part are glass；It is cheap, it is easy to take
.
Or/and vacuum extractor is further included, the import that vacuumizes of vacuum extractor is connected with the import that vacuumizes of babinet, takes out
Vacuum plant is by the in vivo air vacuum pumping of case.There is no the influence of medium in propagation path of light glazing.
In a kind of preferred embodiment of the utility model, light splitting part and the injection light of monochrome light emission device transmitting
In α °, wherein 0<α<90.Adjust reflected light and the angle of incident light.
In a kind of preferred embodiment of the utility model, α=45.Monochromatic light first receiving device receives the angle of light
The angle for receiving light with the second reception device of monochromatic light is conducive to the angle of monochromatic light first receiving device installation in 90 °.
In a kind of preferred embodiment of the utility model, the light splitting part is refracting glass；Point of glass material
Light component is easy to obtain, cheap.
Or the material of entering light component, light extraction component and light splitting part is glass.
In a kind of preferred embodiment of the utility model, the refractive index of container and/or light splitting part is 1<β<2；
Or the refractive index of entering light component and light extraction component is 1<β<2；
Or/and the transmissivity of container and/or light splitting part is 0<γ<1；
Or the transmissivity of entering light component and light extraction component is 0<γ<1.
In a kind of preferred embodiment of the utility model, babinet is lighttight material；Detection is from other light
It influences.
Or the light of light-emitting device transmitting is when being ultraviolet light, the material that babinet corrodes for light tight and ultraviolet resistance.Experiment is not
It is influenced by other light, and babinet is more durable.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are：The utility model can
The content of urea in dialysis liquid is measured, is had the advantages that real-time, online and non-contacting.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Specific embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is same or like element.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and it is not intended that the utility model
Limitation.
In the description of the utility model, it is to be understood that term " longitudinal direction ", " transverse direction ", " on ", " under ", " preceding ",
The orientation or position relationship of the instructions such as " rear ", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " are based on attached
Orientation or position relationship shown in figure are for only for ease of description the utility model and simplify description rather than instruction or imply
Signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that this
The limitation of utility model.
In the description of the utility model, unless otherwise prescribed with restriction, it is necessary to explanation, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be the company inside mechanical connection or electrical connection or two elements
It is logical, it can be directly connected, can also be indirectly connected by intermediary, it for the ordinary skill in the art, can
To understand the concrete meaning of above-mentioned term as the case may be.
According to langbobier law, the content of urea in solution is measured indirectly using ultraviolet light, urea content in solution
Difference, the luminous intensity that receiving terminal receives are just different；In the urea liquid less than 0.01Mol/L, urea to UV Absorption compared with
It is sensitive.
Lambert-Beer's law:Light is unrelated with the intensity of incident light by the ratio that transparent medium absorbs；Per uniform thickness on light path
The light of layer Absorption of Medium same ratio value.
A=lg (1/T)=Kbc
Wherein, A is absorbance, and T is transmittance (light transmittance), is that exiting light beam intensity compares incident intensity；
K is molar absorption coefficient, it is related with the property of absorbing material and the wavelength X of incident light；
C is the concentration of extinction material, and b is absorber thickness.
The utility model provides a kind of blood purification system urea content monitoring device, which includes babinet sheet
Body is provided with the container that the monochromatic light with solution inlet port to be measured and taphole to be measured can pass through in box-like body, is holding
The one side of device is provided with monochrome light emission device；In the present embodiment, monochrome light emission device is not limited to ultraviolet hair
Electro-optical device, can also be the monochromatic light such as red, orange, yellow, green, blue, indigo, purple or infrared ray, and special ultraviolet light swashs
Light, it has good linear pattern.
It is additionally included in the light splitting part set between monochrome light emission device and container, in the present embodiment, spectrum part
Part and the injection light of monochrome light emission device transmitting are in α °, wherein 0<α<90, preferred α=45.Light splitting part sends out monochromatic light
The monochromatic light that electro-optical device is sent is divided into two beams, and the first beam is received by monochromatic light first receiving device, and the second beam in container through treating
After surveying solution, received by the second reception device of monochromatic light.
Further include controller and display, the information output of monochromatic light first receiving device and the first information of controller
Input terminal is connected, and the information output of the second reception device of monochromatic light is connected with the second information input terminal of controller, display
Display input terminal be connected with the display output terminal of controller.Controller is according to monochromatic light first receiving device and monochromatic light second
The information indirect of reception device output calculates urea concentration and shows over the display.
In a kind of preferred embodiment of the utility model, light inlet and light-emitting window are provided on the container,
Entering light component is provided on light inlet, and the first sealing ring is provided between light inlet and entering light component；It is set on light-emitting window
Light extraction component is equipped with, and the second sealing ring is provided between light-emitting window and light extraction component；Second beam light successively through entering light component,
After solution to be measured and light extraction component, received by the second reception device of monochromatic light.
In a kind of preferred embodiment of the utility model, container is the container of closing or container is that upper end is open
Container.
In a kind of preferred embodiment of the utility model, cylinder or sphere that the shape of container is.In this embodiment party
In formula, cuboid or square either six face cylinders or other multi-faceted columns may be employed in cylinder, can also be positive triangular pyramid
Or more pyramid bodies.
In a kind of preferred embodiment of the utility model, container and light splitting part are made of identical material；Or
The material of entering light component, light extraction component and light splitting part is identical material.Such as the glass that refractive index is 1.5, light transmittance is 0.9
Glass.In addition the thickness of container and light splitting part is equal, and preferred thickness is 0.5mm or smaller.Preferably, light penetrates container
The material of this part (light splitting part and entering light component) and the material identical through this part of light splitting part, can be glass,
The rest part of container is the lighttight plastics of black, is conducive to save material,.
In a kind of preferred embodiment of the utility model, container and light splitting part are glass；
Or the material of entering light component, light extraction component and light splitting part is glass；
Or/and vacuum extractor is further included, the import that vacuumizes of vacuum extractor is connected with the import that vacuumizes of babinet, takes out
Vacuum plant is by the in vivo air vacuum pumping of case.
In a kind of preferred embodiment of the utility model, the refractive index of container and/or light splitting part is 1<β<2；
Or the refractive index of entering light component and light extraction component is 1<β<2；Preferably, refractive index is 1.4 glass.
Or/and the transmissivity of container and/or light splitting part is 0<γ<1；
Or the transmissivity of entering light component and light extraction component is 0<γ<1.Preferably, light transmittance (transmissivity) is 0.9 glass
Or the higher glass of light transmittance.
In a kind of preferred embodiment of the utility model, babinet is lighttight material；
Or the light of light-emitting device transmitting is when being ultraviolet light, the material that babinet corrodes for light tight and ultraviolet resistance.Preferably,
The light of light-emitting device transmitting is deep ultraviolet light, and when the light of light-emitting device transmitting is deep ultraviolet light, babinet is light tight and resistance to depth
The material that ultraviolet light corrodes.
Now provide a specific embodiment：As shown in Figure 1, using the positive direction of X-axis as the right side, using the positive direction of Y-axis to be upper,
The closed cuboid with prepare liquid import and prepare liquid outlet is provided in the lighttight closed plastic babinet 1 of a black
Container 2, ultraviolet light emission device is provided in the left or right side of container 2, and (in Fig. 1, ultraviolet light emission device is set
On the right side of container, entering light glass is inlaid on container right flank, light extraction glass is inlaid on the left surface of container), in purple
Refracting glass 5 is provided on the path of outside line light emitting devices transmitting ultraviolet light, refracting glass 5 is in α=45° angle with path,
The left side of container 2 is provided with the first ultraviolet reception device, and the reception of the second ultraviolet is provided with below refracting glass
Prepare liquid import is connected by device with dialyzate waste liquid port, and prepare liquid outlet is connected with waste fluid bag, further includes controller and display
Device, the signal output part of the first ultraviolet reception device are connected with the first signal input part of controller, the second ultraviolet
The signal output part of reception device is connected with the secondary signal input terminal of controller, the display input terminal of display and the letter of control
Breath output terminal is connected, and controller receives ultraviolet according to ultraviolet first receiving device and the second reception device of ultraviolet
Intensity, biochemistry calibration, table look-up indirectly calculate urea concentration, real-time urea concentration is shown over the display.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It is combined in an appropriate manner in any one or more embodiments or example.
While there has been shown and described that the embodiment of the utility model, it will be understood by those skilled in the art that：
In the case where not departing from the principle and objective of the utility model can these embodiments be carried out with a variety of variations, modification, replaced
And modification, the scope of the utility model are limited by claim and its equivalent.
Claims (10)
1. a kind of blood purification system urea content monitoring device, which is characterized in that including box-like body, in the babinet sheet
The container that the monochromatic light with solution inlet port to be measured and taphole to be measured can pass through is provided in vivo, in the one side of the container
It is provided with monochrome light emission device；
The light splitting part set between the monochrome light emission device and container is additionally included in, the light splitting part sends out monochromatic light
The monochromatic light that electro-optical device is sent is divided into two beams, and the first beam is received by monochromatic light first receiving device, and the second beam in container through treating
After surveying solution, received by the second reception device of monochromatic light.
2. blood purification system according to claim 1 urea content monitoring device, which is characterized in that in the container
On be provided with light inlet and light-emitting window, entering light component is provided on light inlet, and is set between light inlet and entering light component
There is the first sealing ring；Light extraction component is provided on light-emitting window, and the second sealing is provided between light-emitting window and light extraction component
Circle；Second beam light after entering light component, solution to be measured and light extraction component, is received successively by the second reception device of monochromatic light.
3. blood purification system according to claim 1 urea content monitoring device, which is characterized in that the monochromatic light
Light-emitting device is ultraviolet light-emitting device.
4. blood purification system according to claim 1 urea content monitoring device, which is characterized in that the container is
The container or container of closing are the container of upper end opening；
Or/and the cylinder or sphere that the shape of container is.
5. blood purification system according to claim 2 urea content monitoring device, which is characterized in that the container and
The material of light splitting part is identical material；
Or the material of entering light component, light extraction component and light splitting part is identical material.
6. the blood purification system urea content monitoring device according to claim 2 or 5, which is characterized in that container and
Light splitting part is glass；
Or the material of entering light component, light extraction component and light splitting part is glass；
Or/and vacuum extractor is further included, the import that vacuumizes of vacuum extractor is connected with the import that vacuumizes of babinet, vacuumizes
Device is by the in vivo air vacuum pumping of case.
7. blood purification system according to claim 1 urea content monitoring device, which is characterized in that light splitting part with
The injection light of monochrome light emission device transmitting is in α °, wherein 0<α<90.
8. blood purification system according to claim 7 urea content monitoring device, which is characterized in that α=45.
9. blood purification system according to claim 2 urea content monitoring device, which is characterized in that container and/or
The refractive index of light splitting part is 1<β<2；
Or the refractive index of entering light component and light extraction component is 1<β<2；
Or/and the transmissivity of container and/or light splitting part is 0<γ<1；
Or the transmissivity of entering light component and light extraction component is 0<γ<1.
10. blood purification system according to claim 1 urea content monitoring device, which is characterized in that babinet is not
The material of light transmission；
Or the light of light-emitting device transmitting is when being ultraviolet light, the material that babinet corrodes for light tight and ultraviolet resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721448491.1U CN207457062U (en) | 2017-11-02 | 2017-11-02 | Blood purification system urea content monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721448491.1U CN207457062U (en) | 2017-11-02 | 2017-11-02 | Blood purification system urea content monitoring device |
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| Publication Number | Publication Date |
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| CN207457062U true CN207457062U (en) | 2018-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721448491.1U Active CN207457062U (en) | 2017-11-02 | 2017-11-02 | Blood purification system urea content monitoring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741404A (en) * | 2017-11-02 | 2018-02-27 | 重庆山外山血液净化技术股份有限公司 | A kind of blood purification system urea content monitoring device |
-
2017
- 2017-11-02 CN CN201721448491.1U patent/CN207457062U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741404A (en) * | 2017-11-02 | 2018-02-27 | 重庆山外山血液净化技术股份有限公司 | A kind of blood purification system urea content monitoring device |
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