CN203898310U - Rat foot claw volume measuring instrument - Google Patents
Rat foot claw volume measuring instrument Download PDFInfo
- Publication number
- CN203898310U CN203898310U CN201420335087.3U CN201420335087U CN203898310U CN 203898310 U CN203898310 U CN 203898310U CN 201420335087 U CN201420335087 U CN 201420335087U CN 203898310 U CN203898310 U CN 203898310U
- Authority
- CN
- China
- Prior art keywords
- foot claw
- rat foot
- pipet
- solution container
- standardize solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a rat foot claw volume measuring instrument, comprising a pipette, a constant volume container, a tee switching valve, an injector, a first support for fixing the pipette and a second support for fixing the constant volume container; a rat foot claw placing inlet is formed in the upper end of the constant volume container; a liquid inlet/outlet is formed in the lower end of the constant volume container; a first valve port of the tee switching valve is connected with the injector by a pipe; a second valve port of the tee switching valve is connected with a pipe port in the lower part of the pipette by a pipe; a third valve port of the tee switching valve is connected with the liquid inlet/outlet of the constant volume container by a pipe. When the rat foot claw volume measuring instrument is used for measuring the foot claw volume of a rat, the reading is volume of static water in the pipette, the measuring precision of the pipette is high, and the influence to the measuring precision due to the shaking of the rat foot claw is eliminated, so the measuring precision is high, the operation is more convenient, and the successful rate of screening and researching of an anti-inflammatory agent is improved.
Description
Technical field
This utility model relates to a kind of measurement device, particularly a kind of measurement device of measuring rat volume.
Background technology
Rat foot claw swelling is the classical way of screening, research anti-inflammatory drug, can make that the local telangiectasis of rat, vascular permeability increase, ooze out when injected carrageenin in to rat paw, edema etc. is a series of is similar to the acutely inflamed reaction of human body, therefore that the method is applied in new drug evaluation is very extensive.
In prior art, measure rat foot claw swelling and generally adopt drainage, be about to the container that rat foot claw is put into dress water, by the SEA LEVEL VARIATION of observing in container, obtain rat foot claw volume.Yet in practical operation, owing to being the measurement of carrying out under rat waking state, rat foot claw can be shaken, accurate reading is more difficult, and the measuring accuracy of common vessel is lower, causing rat cubing precision lower, is the key factor of anti-inflammatory drug research experiment success or failure and the accurate quantification of rat foot claw volume is detected, and therefore needs a kind of gauge that can accurately measure rat foot claw volume.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of rat foot claw volume measuring instrument, can not accurately measure the problem of rat foot claw volume to solve existing test apparatus.
This utility model rat foot claw volume measuring instrument, comprise pipet, standardize solution container, three-way switch valve, syringe, fixedly the first support of pipet and fixedly the second support of standardize solution container, the upper end of described standardize solution container is provided with rat foot claw and puts into mouth, the lower end of described standardize solution container is provided with liquid entrance, the first valve port of described three-way switch valve is connected with syringe by pipe, the second valve port of described three-way switch valve is connected with the lower nozzle of pipet by pipe, the 3rd valve port of described three-way switch valve is connected with the liquid entrance of standardize solution container by pipe.
Further, described the first support and the second support include base, are fixed on the support bar on base and are fixed on the pipe clamp on support bar.
Further, described standardize solution container is 5ml constant volume tube, and described pipet is 5ml pipet, and the minimum scale of described pipet is 0.05ml.
The beneficial effects of the utility model:
1, this utility model rat foot claw volume measuring instrument, during measurement, first rat foot claw is put into standardize solution container, by syringe, water is injected to standardize solution container again, until water is filled with standardize solution container, and then by switching three-way reversal valve, the water in standardize solution container is proceeded in pipet, by the volume of standardize solution container, deduct the volume of water in pipet, obtain rat foot claw volume, owing to needing in measuring process that water is filled with to standardize solution container, water overflows and can't impact water volume reading in pipet from standardize solution container, therefore can adopt this measuring instrument to measure rat foot claw volume more convenient operation, can eliminate the impact of rat foot claw shake on certainty of measurement, certainty of measurement is higher.
2, this utility model rat foot claw volume measuring instrument, because the certainty of measurement of pipet is higher than standardize solution container, water in its pipet remains static, accuracy of reading is higher, therefore this measuring instrument is higher with respect to existing rat foot claw volume measurement device precision, is conducive to improve the success rate of anti-inflammatory agent screening, research.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model rat foot claw volume measuring instrument.
The specific embodiment
Below in conjunction with drawings and Examples, this utility model is further described.
As shown in the figure, the present embodiment rat foot claw volume measuring instrument, comprise pipet 1, standardize solution container 2, three-way switch valve 3, syringe 4, fixedly the first support 5 of pipet 1 and fixedly the second support 6 of standardize solution container 2, the upper end of described standardize solution container 2 is provided with rat foot claw and puts into mouth, the lower end of described standardize solution container 2 is provided with liquid entrance, the first valve port of described three-way switch valve 3 is connected with syringe by pipe, the second valve port of described three-way switch valve 3 is connected with the lower nozzle of pipet 1 by pipe, the 3rd valve port of described three-way switch valve 3 is connected with the liquid entrance of standardize solution container 2 by pipe.
In the present embodiment, described the first support 5 and the second support 6 include base 01, are fixed on the support bar 02 on base and are fixed on the pipe clamp 03 on support bar.
In the present embodiment, described standardize solution container 2 is 5ml constant volume tube, and described pipet 1 is 5ml pipet, and the minimum scale of described pipet 1 is 0.05ml; Certainly in concrete enforcement, described pipet and the volume of standardize solution volume and the minimum scale of pipet also can be selected other specification as required.
Adopt the process of this present embodiment rat foot claw volume measuring instrument measurement rat foot claw volume as follows:
The first step: rat foot claw is put into standardize solution container 2;
Second step: switching three-way transfer valve 3 communicates (now the first valve port and the second valve port cut off) its first valve port and the 3rd valve port, and the water in syringe 4 is injected to standardize solution container 2, until standardize solution container 2 is filled with (having allowed overflow);
The 3rd step: switching three-way transfer valve 3 communicates (now the first valve port and the 3rd valve port cut off) the second valve port and the 3rd valve port, and the water in standardize solution container 2 is turned and is all transferred in pipet 1;
The 4th step: the volume that reads water in pipet;
The 5th step: deduct the volume of water in pipet 1 by the volume of standardize solution container 2, obtain rat foot claw volume.
Adopt the present embodiment rat foot claw volume measuring instrument to measure rat foot claw volume, because reading is the volume that reads resting state water in pipet, and the certainty of measurement of pipet is high, eliminated the impact of rat foot claw shake on certainty of measurement simultaneously, therefore certainty of measurement is high, more convenient operation, is conducive to improve the success rate of anti-inflammatory agent screening, research.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although this utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (3)
1. a rat foot claw volume measuring instrument, it is characterized in that: comprise pipet, standardize solution container, three-way switch valve, syringe, fixedly the first support of pipet and fixedly the second support of standardize solution container, the upper end of described standardize solution container is provided with rat foot claw and puts into mouth, the lower end of described standardize solution container is provided with liquid entrance, the first valve port of described three-way switch valve is connected with syringe by pipe, the second valve port of described three-way switch valve is connected with the lower nozzle of pipet by pipe, the 3rd valve port of described three-way switch valve is connected with the liquid entrance of standardize solution container by pipe.
2. rat foot claw volume measuring instrument according to claim 1, is characterized in that: described the first support and the second support include base, are fixed on the support bar on base and are fixed on the pipe clamp on support bar.
3. rat foot claw volume measuring instrument according to claim 1, is characterized in that: described standardize solution container is 5ml constant volume tube, and described pipet is 5ml pipet, and the minimum scale of described pipet is 0.05ml.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420335087.3U CN203898310U (en) | 2014-06-20 | 2014-06-20 | Rat foot claw volume measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420335087.3U CN203898310U (en) | 2014-06-20 | 2014-06-20 | Rat foot claw volume measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203898310U true CN203898310U (en) | 2014-10-29 |
Family
ID=51772621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420335087.3U Expired - Fee Related CN203898310U (en) | 2014-06-20 | 2014-06-20 | Rat foot claw volume measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203898310U (en) |
-
2014
- 2014-06-20 CN CN201420335087.3U patent/CN203898310U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20150620 |
|
| EXPY | Termination of patent right or utility model |