CN203749634U - Rat fixator - Google Patents
Rat fixator Download PDFInfo
- Publication number
- CN203749634U CN203749634U CN201420058914.9U CN201420058914U CN203749634U CN 203749634 U CN203749634 U CN 203749634U CN 201420058914 U CN201420058914 U CN 201420058914U CN 203749634 U CN203749634 U CN 203749634U
- Authority
- CN
- China
- Prior art keywords
- rat
- piston
- opening
- tail
- container cavity
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 230000036541 health Effects 0.000 claims description 12
- 210000003608 fece Anatomy 0.000 claims description 4
- 210000001217 buttock Anatomy 0.000 claims description 3
- 239000000443 aerosol Substances 0.000 abstract description 8
- 230000003044 adaptive effect Effects 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 231100000824 inhalation exposure Toxicity 0.000 abstract 1
- 238000002474 experimental method Methods 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 231100000027 toxicology Toxicity 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000010171 animal model Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000002110 toxicologic effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Landscapes
- Catching Or Destruction (AREA)
Abstract
The utility model provides a rat fixator which can comprise a piston cylinder and a piston. The piston cylinder comprises a head chamber and a body chamber. The head chamber is in a tapered shape adapting to the head of a rat, a first opening is arranged near a mouth-nose inhalation position of the rat, the first opening is used for inserting a connecting tube whereby a mouth-nose inhalation exposure chamber and a rat chamber are communicated, a second opening is arranged in the end of the body chamber and used for holding th rat and mounting the piston. The piston is provided with a tail sealing hole adaptive to the tail of the rat. The tail sealing hole adaptive to the tail of the rat is arranged in the piston and is used for hermetically fixing the tail of the rat and keeping the tail of the rat exposed, and the rat can be cooled. The rat fixator is not communicated with the external air, the influence of the external air upon concentration of aerosol near the mouth and nose of the rat is decreased, and the concentration of the aerosol near the mouth and nose of the rat is stabilized and easily controlled.
Description
Technical field
This utility model relates to laboratory animal technique for fixing field, particularly relates to a kind of toxicological experiment rat fixator that sucks.
Background technology
Inhalation toxicology be research can inhalation (inhalatio) to body toxic action occur, development and the various conditions of eliminating, rule and mechanism and to can inhalation (inhalatio) carrying out a science of hazard assessment.Its professional research contents mainly contains: the physicochemical property of various materials in air; The fundamental biological knowledge of respiratory tract; Deposition in vivo of inhalation (inhalatio) and delay and and body in interaction between important system, organ; These interactions are how to cause disease to produce.Animal subject in current all kinds of experiment mostly is muroid.But the muroid mouth and nose that carry out at present expose in experiment, and the aerosol concentration at the mouth and nose place of muroid holder is unstable, and wayward, can impact the result of experiment.
Summary of the invention
an object of the present utility model is that a kind of rat fixator will be provided, and solves the muroid mouth and nose that carry out at present and exposes in experiment, and the aerosol concentration at the mouth and nose place of muroid holder is unstable, and wayward, the technical problem that can impact the result of experiment.
this utility model provides a kind of rat fixator, wherein, comprises airtight piston barrel and the piston with the first opening and the second opening; Described piston barrel comprises head container cavity and health container cavity; Described head container cavity is the convergent shape adapting with the head of rat, and described the first opening is arranged on mouth and nose suction place of described rat; Described the second opening arranges the end of described health container cavity; On described piston, be provided with the tail closed hole adapting with the tail of described rat.
further, on described piston, be provided with the curved surface adapting with described rat buttocks.
further, described health container cavity is cylindric.
further, be provided with collecting dung groove in the bottom of described health container cavity.
further, on the inwall of described the first opening, be arranged at intervals with projection.
further, on described piston, be provided with push rod.
further, on described piston, be provided with the mounting groove for sealing ring is installed.
further, described sealing ring is V-shaped seal ring.
rat fixator of the present utility model is owing to adopting the airtight piston barrel of both ends open, and the first opening is for being communicated with exposure chamber, and the second opening packs into and takes on for rat, and piston enters and seals from the second opening.On piston, be provided with the tail closed hole adapting with the tail of rat, for the tail of fixing seal rat, make the tail of rat outside exposed, be conducive to the heat radiation of rat.Because rat fixator is not communicated with extraneous atmosphere, reduce the impact of the aerocolloidal concentration of ambient atmosphere on rat mouth and nose place, make the aerosol concentration at mouth and nose place stable, and easy to control.
Brief description of the drawings
hereinafter describe specific embodiments more of the present utility model in detail in exemplary and nonrestrictive mode with reference to the accompanying drawings.In accompanying drawing, identical Reference numeral has indicated same or similar parts or part.It should be appreciated by those skilled in the art that these accompanying drawings may not draw in proportion.In accompanying drawing:
fig. 1 is according to the cutaway view of the rat fixator of an embodiment of this utility model;
fig. 2 is the schematic left view of the rat fixator shown in Fig. 1;
fig. 3 is the axonometric chart of the rat fixator shown in Fig. 1.
Detailed description of the invention
according to the detailed description to this utility model specific embodiment by reference to the accompanying drawings below, those skilled in the art will understand above-mentioned and other objects, advantage and feature of the present utility model more.
fig. 1 is according to the cutaway view of the rat fixator of an embodiment of this utility model; Fig. 2 is the schematic left view of the rat fixator shown in Fig. 1; Fig. 3 is the axonometric chart of the rat fixator shown in Fig. 1.Shown in Fig. 1, Fig. 2 and Fig. 3, rat fixator can comprise piston barrel and piston 30 in general manner; Piston barrel comprises head container cavity 10 and health container cavity 20; Head container cavity 10 is the convergent shape adapting with the head of rat, and the first opening is arranged on mouth and nose suction place of rat, connection tube or aerosol inlet pipe that the first opening is communicated with rat container cavity for the inhalant exposure chamber of insert port nose; The second opening arranges the end of health container cavity 20, for placing mouse and piston 30 being installed; Piston barrel other place except the first opening and the second opening is airtight.On piston 30, be provided with the tail closed hole 34 adapting with the tail of described rat, between tail closed hole 34 and tail, be provided with sealing device, for example rubber sleeve 31.On piston 30, be provided with the tail closed hole 34 adapting with the tail of rat, for the tail of fixing seal rat, make the tail of rat outside exposed, be conducive to the heat radiation of rat.Because rat fixator is not communicated with extraneous atmosphere, reduce the impact of the aerocolloidal concentration of ambient atmosphere on rat mouth and nose place, make the aerosol concentration at mouth and nose place stable, and easy to control.
in another one embodiment of the present utility model, on piston 30, be provided with the curved surface adapting with described rat buttocks.For fixing better mouse.The columned cylindrical shell of health container cavity 20 general employing.The bottom of health container cavity 20 is provided with collecting dung groove 32.In collecting dung groove 32, be placed with the waste gas absorption material that rat discharges, as active carbon, for preventing that the foreign gas such as ammonia, sulfur dioxide from affecting aerocolloidal concentration.On the inwall of the first opening, be arranged at intervals with projection, for being fixedly connected with pipe, between connection tube and the inwall of the first opening, there is gap, for emitting the gas of rat exhalation and unnecessary aerosol.On piston 30, be provided with the push rod 33 for push-and-pull piston 30, be convenient to the movement of piston 30.On piston 30, be also provided with the mounting groove for sealing ring is installed.Sealing ring adopts V-shaped seal ring 40.Sealing ring is the Packed function of tool not only, can also retreat by mouse, or after mouse, plays piston is moved.Be convenient to the fixing of sealing and mouse.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art, do not departing under the prerequisite of this utility model principle, any improvements and modifications of making also should be considered as protection domain of the present utility model.
Claims (8)
1. a rat fixator, is characterized in that, comprises airtight piston barrel and the piston (30) with the first opening and the second opening; Described piston barrel comprises head container cavity (10) and health container cavity (20); Described head container cavity (10) is the convergent shape adapting with the head of rat, and described the first opening is arranged on mouth and nose suction place of described rat; Described the second opening arranges the end of described health container cavity (20); On described piston (30), be provided with the tail closed hole (34) adapting with the tail of described rat.
2. rat fixator according to claim 1, is characterized in that, is provided with the curved surface adapting with described rat buttocks on described piston (30).
3. rat fixator according to claim 1, is characterized in that, described health container cavity (20) is cylindric.
4. according to the rat fixator described in any one in claims 1 to 3, it is characterized in that, be provided with collecting dung groove (32) in the bottom of described health container cavity (20).
5. rat fixator according to claim 4, is characterized in that, on the inwall of described the first opening, is arranged at intervals with projection.
6. rat fixator according to claim 4, is characterized in that, is provided with push rod (33) on described piston (30).
7. rat fixator according to claim 4, is characterized in that, described piston is provided with the mounting groove for sealing ring is installed on (30).
8. rat fixator according to claim 7, is characterized in that, described sealing ring is V-shaped seal ring (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420058914.9U CN203749634U (en) | 2014-02-08 | 2014-02-08 | Rat fixator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420058914.9U CN203749634U (en) | 2014-02-08 | 2014-02-08 | Rat fixator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203749634U true CN203749634U (en) | 2014-08-06 |
Family
ID=51244943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420058914.9U Expired - Lifetime CN203749634U (en) | 2014-02-08 | 2014-02-08 | Rat fixator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203749634U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725983A (en) * | 2017-03-02 | 2017-05-31 | 中国人民解放军第三军医大学第二附属医院 | Experimental animal fixing device |
| WO2024108644A1 (en) * | 2022-11-24 | 2024-05-30 | 深圳先进技术研究院 | Rapid rat fixator |
-
2014
- 2014-02-08 CN CN201420058914.9U patent/CN203749634U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725983A (en) * | 2017-03-02 | 2017-05-31 | 中国人民解放军第三军医大学第二附属医院 | Experimental animal fixing device |
| WO2024108644A1 (en) * | 2022-11-24 | 2024-05-30 | 深圳先进技术研究院 | Rapid rat fixator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |