CN103222900B - Rat fixator - Google Patents
Rat fixator Download PDFInfo
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- CN103222900B CN103222900B CN201310191828.5A CN201310191828A CN103222900B CN 103222900 B CN103222900 B CN 103222900B CN 201310191828 A CN201310191828 A CN 201310191828A CN 103222900 B CN103222900 B CN 103222900B
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- head mount
- rat
- fixing piece
- afterbody fixture
- fixture
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Abstract
The invention discloses a rat fixator which solves the problems that the conventional device cannot fix a rat well, an instrument is complex and the cost is high. The rat fixator comprises a head fixing piece, a tail fixing piece and an anesthesia piece, wherein the tail fixing piece is connected with the bottom end of the head fixing piece; the anesthesia piece is connected with the top end of the head fixing piece; the end part of the top end of the tail fixing piece is provided with more than two cracks; the cross section of the head fixing piece is gradually enlarged from the top end to the bottom end; the cross section of the tail fixing piece is gradually shrunk from the top end to the bottom end; the head fixing piece and the tail fixing piece are of cavity structures; and the top ends and the tail ends of the head fixing piece and the tail fixing piece are of opening structures. The rat fixator is reasonable in design, simple in structure and firm in fixation, does not injure the rat and particularly facilitates batch production; and the rat fixator can conveniently perform test operation such as caudal vein blood collection, injection, tail flick test, pressing pain measurement and the like.
Description
Technical field
The invention belongs to the experiment equipment of doctor, pharmaceutical field, be specifically related to a kind of rat fixator.
Background technology
Rat is one of the most frequently used medicine and pharmacology laboratory animal, carries out firmly, restriction is accurately the prerequisite of testing it to the rat of not anaesthetizing.At present conventional rat fixing device, a part only has and is fixed the trunk of rat, lacks necessary head and fixes, or the space of components of fixing head is comparatively large, and rat head is narrow, when testing, rat head can twist, and hinders the operation of experimenter; Another part fixture, although head, the trunk that can fix rat, instrument is comparatively complicated, and product cost is higher.
Summary of the invention
The object of the present invention is to provide a kind of rat fixator, solve existing apparatus and well cannot fix rat, and instrument is complicated, the problem that cost is higher.
To achieve these goals, the technical solution used in the present invention is as follows:
Rat fixator, comprises head mount, the afterbody fixture be connected with head mount bottom, and the anesthesia part be connected with head mount top; Described afterbody fixture top end is provided with plural crack, and the cross section of described head mount expands gradually from top to bottom, and the cross section of described afterbody fixture reduces gradually from top to bottom; Described head mount and afterbody fixture are cavity structure, and the top of head mount and afterbody fixture and bottom are all in hatch frame.
Further, described afterbody fixture is also provided with the fixed bar be fixedly connected with it, described fixed bar is also fixedly connected with connecting rod away from one end of afterbody fixture, described connecting rod is also provided with plural first screwed hole away from one end of fixed bar, head mount is provided with and equal-sized second screwed hole on connecting rod, and described head mount and connecting rod are by fixing through the screw rod of the first screwed hole and the second screwed hole.
In addition, described head mount bottom inner portion is provided with female thread, afterbody fixture is also provided with the external screw thread being positioned at and matching below crack and with female thread.
Again further, described head mount and afterbody fixture are equipped with plural through hole.
Further, described anesthesia part top is provided with oxygen catheter and anesthetis conduit, and is threaded connection between anesthesia part and head mount top.
Preferred as one, described head mount, afterbody fixture, anesthesia part and connecting rod are formed by plastic material.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) cross section of head mount of the present invention and afterbody fixture all adopts variable diameter design, can be good at the health of the rat adapting to the different bodily form, rat is can be good to be fixed within the present invention, connection simultaneously between head mount of the present invention and afterbody fixture can regulate within the specific limits, the health of the rat of different length can be adapted to, thus there will not be rat head in experimentation, twist the operation hindering experimenter.
(2) head mount top of the present invention is also connected with anesthesia part, when testing, carrying out anaesthetizing or reviving, thus be convenient to carry out experimental implementation by oxygen catheter and anesthetis conduit to the rat being positioned at the present invention.
(3) head mount of the present invention and afterbody fixture are also provided with multiple through hole, subcutaneous and lumbar injection can be carried out to the rat being positioned at the present invention, can make rat in experimentation, reduce the interference of environmental stimuli to experiment as far as possible preferably, ensure the accuracy of experiment, easy to operate; Simultaneously owing to being provided with multiple through hole, enhance breathability.
(4) the present invention is reasonable in design, structure is simple, conscientiously fixing, to rat noinvasive, and especially convenient batch production; The present invention simultaneously can carry out the experimental implementation such as tail venous blood sampling and injection, tail-flick test, tenderness measurement easily.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention-embodiment 1.
Fig. 2 is the structural representation of the present invention-embodiment 2.
Wherein, the parts name that in accompanying drawing, labelling is corresponding is called: 1-head mount, 2-afterbody fixture, and 3-anaesthetizes part, 4-fixed bar, 5-connecting rod, 6-screw rod, 7-through hole, 8-oxygen catheter, 9-anesthetis conduit.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described, and embodiments of the present invention include but not limited to the following example.
Embodiment 1
As shown in Figure 1, rat fixator, comprises head mount 1, the afterbody fixture 2 be connected with head mount 1 bottom, and the anesthesia part 3 be connected with head mount 1 top; Described afterbody fixture 2 top end is provided with plural crack, and the cross section of described head mount 1 expands gradually from top to bottom, and the cross section of described afterbody fixture 2 reduces gradually from top to bottom; Described head mount 1 and afterbody fixture 2 are cavity structure, and the top of head mount 1 and afterbody fixture 2 and bottom are all in hatch frame.Described head mount and afterbody fixture are completely according to the curvature of rat, its head and afterbody narrower, and middle part is wider, so fixture becomes said structure with afterbody anchor designs.Certain head mount and afterbody fixture also can be designed to semiellipsoid structure, just two ends are opening form, just the ellipsoid of a cavity structure has been become when head mount is combined with afterbody fixture, its two ends are cylindrical structure, ventilate for the ease of head in one end, the other end is convenient to tail and is stretched out outside of the present invention.
Further, in order to head mount 1 and afterbody fixture 2 be fixed very well, when within it twisting to prevent rat, head mount is separated with afterbody fixture; Described afterbody fixture 2 is also provided with the fixed bar 4 be fixedly connected with it, described fixed bar 4 is also fixedly connected with connecting rod 5 away from one end of afterbody fixture, described connecting rod 5 is also provided with plural first screwed hole away from one end of fixed bar, head mount 1 is provided with and equal-sized second screwed hole on connecting rod 5, and described head mount 1 is fixed by the screw rod 6 through the first screwed hole and the second screwed hole with connecting rod 5.When rat being put into head mount and afterbody fixture, according to its bodily form and length, head mount and afterbody fixture are drawn close to centre, now the crack on afterbody fixture top will narrow, thus be convenient to afterbody fixture and can be encased by head mount smoothly, when head mount and afterbody fixture reach appropriate location, only screw rod need be fixed through passing the second screwed hole again from the first screwed hole, thus head mount and afterbody fixture are fixed.Because of the rat bodily form and length not etc., so connecting rod is provided with multiple first screwed hole, so that when testing different rat, can, well by head mount and the fixation of afterbody fixture, facilitate experimenter to operate.
In order to better air permeable effect can be realized, and subcutaneous and abdomen injection can be carried out to rat, described head mount 1 and afterbody fixture 2 are equipped with plural through hole 7.
Meanwhile, in order to better realize the present invention, described anesthesia part 3 top is provided with oxygen catheter 8 and anesthetis conduit 9, and is threaded connection between anesthesia part 3 and head mount 1 top.Such setting is in order to when not needing to carry out anaesthetizing and reviving, and only anesthesia part need be separated with head mount, for rat provides ventilative; When needs carry out anaesthetizing and reviving, only anesthesia part need be connected with head mount, by oxygen catheter and anesthetis conduit oxygen and anesthetis be passed into rat thus reach the effect of reviving and anaesthetizing.
In addition, described head mount 1, afterbody fixture 2, anesthesia part 3 and connecting rod 5 are formed by plastic material.Simultaneously in order to better recognize that rat is in situation of the present invention, can all make transparent by just above-mentioned parts, thus the state of rat can be observed accurately, facilitating experimenter to operate.
Embodiment 2
As shown in Figure 2, rat fixator, comprises head mount 1, the afterbody fixture 2 be connected with head mount 1 bottom, and the anesthesia part 3 be connected with head mount 1 top; Described afterbody fixture 2 top end is provided with plural crack, and the cross section of described head mount 1 expands gradually from top to bottom, and the cross section of described afterbody fixture 2 reduces gradually from top to bottom; Described head mount 1 and afterbody fixture 2 are cavity structure, and the top of head mount 1 and afterbody fixture 2 and bottom are all in hatch frame.Described head mount and afterbody fixture are completely according to the curvature of rat, its head and afterbody narrower, and middle part is wider, so fixture becomes said structure with afterbody anchor designs.Certain head mount and afterbody fixture also can be designed to semiellipsoid structure, just two ends are opening form, just the ellipsoid of a cavity structure has been become when head mount is combined with afterbody fixture, its two ends are cylindrical structure, ventilate for the ease of head in one end, the other end is convenient to tail and is stretched out outside of the present invention.
Further, in order to head mount 1 and afterbody fixture 2 be can be good at fixing, when preventing rat from twisting within it, head mount is separated with afterbody fixture, described head mount 1 bottom inner portion is provided with female thread, afterbody fixture 2 is also provided with the external screw thread being positioned at and matching below crack and with female thread.When rat is positioned at head mount and afterbody fixture, only needs rotatable head fixture or afterbody fixture, fixed by female thread and external screw thread; Because the rat bodily form is different with length, so in rotary course, when rat is less, the part that afterbody fixture enters head mount is just more, and will shorten in the spacing that rotary course crosses crack, to ensure that afterbody fixture can enter in head mount smoothly, thus reach rat is fixed in head mount and afterbody fixture.
In order to better air permeable effect can be realized, and subcutaneous and abdomen injection can be carried out to rat, described head mount 1 and afterbody fixture 2 are equipped with plural through hole 7.
Meanwhile, in order to better realize the present invention, described anesthesia part 3 top is provided with oxygen catheter 8 and anesthetis conduit 9, and is threaded connection between anesthesia part 3 and head mount 1 top.Such setting is in order to when not needing to carry out anaesthetizing and reviving, and only anesthesia part need be separated with head mount, for rat provides ventilative; When needs carry out anaesthetizing and reviving, only anesthesia part need be connected with head mount, by oxygen catheter and anesthetis conduit oxygen and anesthetis be passed into rat thus reach the effect of reviving and anaesthetizing.
In addition, described head mount 1, afterbody fixture 2, anesthesia part 3 and connecting rod 5 are formed by plastic material.Simultaneously in order to better recognize that rat is in situation of the present invention, can all make transparent by just above-mentioned parts, thus the state of rat can be observed accurately, facilitating experimenter to operate.
According to above-described embodiment, just the present invention can be realized well.What deserves to be explained is; under prerequisite based on said structure design, for solving same technical problem, even if some making on the invention are without substantial change or polishing; the essence of the technical scheme adopted is still the same with the present invention, therefore it also should in protection scope of the present invention.
Claims (4)
1. rat fixator, is characterized in that, comprises head mount (1), the afterbody fixture (2) be connected with head mount (1) bottom, and the anesthesia part (3) be connected with head mount (1) top; Described afterbody fixture (2) top end is provided with plural crack, and the cross section of described head mount (1) expands gradually from top to bottom, and the cross section of described afterbody fixture (2) reduces gradually from top to bottom; Described head mount (1) and afterbody fixture (2) are cavity structure, and the top of head mount (1) and afterbody fixture (2) and bottom are all in hatch frame;
Described afterbody fixture (2) is also provided with the fixed bar (4) be fixedly connected with it, described fixed bar (4) is also fixedly connected with connecting rod (5) away from one end of afterbody fixture, described connecting rod (5) is also provided with plural first screwed hole away from one end of fixed bar, head mount (1) is provided with upper equal-sized second screwed hole with connecting rod (5), and described head mount (1) is fixed by the screw rod (6) through the first screwed hole and the second screwed hole with connecting rod (5).
2. rat fixator according to claim 1, is characterized in that, described head mount (1) and afterbody fixture (2) are equipped with plural through hole (7).
3. rat fixator according to claim 2, is characterized in that, described anesthesia part (3) top is provided with oxygen catheter (8) and anesthetis conduit (9), and is threaded connection between anesthesia part (3) and head mount (1) top.
4. rat fixator according to claim 3, is characterized in that, described head mount (1), afterbody fixture (2), anesthesia part (3) and connecting rod (5) are formed by plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310191828.5A CN103222900B (en) | 2013-05-22 | 2013-05-22 | Rat fixator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310191828.5A CN103222900B (en) | 2013-05-22 | 2013-05-22 | Rat fixator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103222900A CN103222900A (en) | 2013-07-31 |
| CN103222900B true CN103222900B (en) | 2015-01-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310191828.5A Expired - Fee Related CN103222900B (en) | 2013-05-22 | 2013-05-22 | Rat fixator |
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| Country | Link |
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| CN (1) | CN103222900B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103598926A (en) * | 2013-11-13 | 2014-02-26 | 中国人民解放军第九七医院 | Fixing apparatus for volume uniform radiation test of laboratory mice |
| CN105796205B (en) * | 2016-03-10 | 2017-10-03 | 济南大学 | A kind of rat jugular sinus fixing device for sampling blood |
| CN111317590A (en) * | 2020-02-27 | 2020-06-23 | 中国人民解放军疾病预防控制中心 | Adjustable rat restraint device for noninvasive blood pressure monitoring |
| WO2023102772A1 (en) * | 2021-12-08 | 2023-06-15 | 中国科学院深圳先进技术研究院 | Apparatus for facilitating detection of physiological indicators of small animals and use method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2379107Y (en) * | 1999-07-27 | 2000-05-24 | 连建学 | Appliance for fetlering experimental white rat |
| CN201223470Y (en) * | 2008-06-18 | 2009-04-22 | 西安电力中心医院 | Fixator of rat |
| CN201275157Y (en) * | 2008-09-11 | 2009-07-22 | 广州医学院 | Rat-holding device for anaesthetizing experimental white rat |
| CN202437390U (en) * | 2012-02-20 | 2012-09-19 | 东北农业大学 | Suspension type holding device for collecting blood of mouse caudal vein for experiment |
| CN202458770U (en) * | 2012-02-08 | 2012-10-03 | 中国农业科学院上海兽医研究所 | Mouse tail intravenous injection fixing device |
-
2013
- 2013-05-22 CN CN201310191828.5A patent/CN103222900B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2379107Y (en) * | 1999-07-27 | 2000-05-24 | 连建学 | Appliance for fetlering experimental white rat |
| CN201223470Y (en) * | 2008-06-18 | 2009-04-22 | 西安电力中心医院 | Fixator of rat |
| CN201275157Y (en) * | 2008-09-11 | 2009-07-22 | 广州医学院 | Rat-holding device for anaesthetizing experimental white rat |
| CN202458770U (en) * | 2012-02-08 | 2012-10-03 | 中国农业科学院上海兽医研究所 | Mouse tail intravenous injection fixing device |
| CN202437390U (en) * | 2012-02-20 | 2012-09-19 | 东北农业大学 | Suspension type holding device for collecting blood of mouse caudal vein for experiment |
Also Published As
| Publication number | Publication date |
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| CN103222900A (en) | 2013-07-31 |
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