CN208481523U - Rat oral gavage assistor - Google Patents
Rat oral gavage assistor Download PDFInfo
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- CN208481523U CN208481523U CN201721419852.XU CN201721419852U CN208481523U CN 208481523 U CN208481523 U CN 208481523U CN 201721419852 U CN201721419852 U CN 201721419852U CN 208481523 U CN208481523 U CN 208481523U
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- rat
- body portion
- head skirt
- oral gavage
- head
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Abstract
The utility model discloses a kind of rat oral gavage assistors, the rat oral gavage assistor includes the light shield layer of body portion sleeve (12) and setting in the head skirt (11) and body portion sleeve (12) for fixing the head skirt of rat head (11), for fixing rat body, the middle part internal diameter of the head skirt (11) is less than the internal diameter at both ends, body portion sleeve (12) is connect with the head skirt (11), forms tubular construction.Rat oral gavage assistor provided by the utility model can in a longer period of time continuous gavage when, the not oral cavity of injury rats, pharyngeal and alimentary canal, and can ensure experimenter's inherently safe.
Description
Technical field
The utility model relates to rat oral gavage technical field more particularly to a kind of rat oral gavage assistors.
Background technique
With the development of medical technology, zoopery has become the basic skills of medical experiment research.According to experiment purpose,
The type of experimental animal and the difference of drug dose need to implement different medications to experimental animal.Oral gastric infusion side
Method is a kind of important administration route, and gastric infusion can accurately grasp dosage, control administration time, in nutrition and medicine
It is significant in object zoopery.Rat oral gavage is the common technology of experimental zoology, and going on smoothly for stomach-filling is to ensure
An important factor for experimental result.In addition, preventing experimenter by damaged by rats wound, ensureing that experimenter's inherently safe is also zoopery
The most basic requirement of operation.
Traditional stomach-filling method of rat mentions for left hand one hand and pinches ear, skin of back at present, the method that the right hand holds needle stomach-filling.Separately
Have it is some in this way based on improved method, but be only change left hand grasping position either mouse position.Tradition
Stomach-filling method working well for the rat operation within 200g to weight, but when rat body weight increases, especially to some
For the fat mouse of the specified diseases model such as fatty liver, metabolic syndrome, when using conventional method stomach-filling under rat
Half body and tail portion will appear stronger bending and stretching property and swing, so that experiment operator left hand is easy fatigue and gastric perfusion needle can be with big
The swing of mouse and reverse the damage caused to esophageal wall in vivo.In addition, traditional administration by gavage easily causes rat excitation, rat is irritated fierce
Experimenter is easily bitten when violent.
Utility model content
The purpose of the utility model is to provide a kind of rat oral gavage assistors, can be by rat effective brake, longer
Continuous gavage in time, and oral cavity, pharyngeal and alimentary canal are not damaged, it ensures experimenter's inherently safe, facilitates a large amount of sections
Grind going on smoothly for work.
To achieve the goals above, the utility model provides a kind of rat oral gavage assistor, the rat oral gavage auxiliary
Device includes body portion sleeve for fixing the head skirt of rat head, for fixing rat body and is arranged in the head
Light shield layer on portion's sleeve and body portion sleeve, the middle part internal diameter of the head skirt are less than the internal diameter at both ends, the body portion
Sleeve is connect with the head skirt, forms tubular construction.
Preferably, the pliability of the material of the head skirt is greater than the pliability of the material of body portion sleeve.
Optionally, body portion sleeve is made of PET plastic.
Optionally, the head skirt and body portion sleeve are all made of PET plastic production, the wall thickness of the head skirt
Less than the wall thickness of body portion sleeve.
Optionally, the shape of generatrix of the head skirt is the arc-shaped of indent, and the internal diameter at the both ends of head skirt is equal,
Body portion sleeve includes body upper bush and body lower sleeve, and the bus of the body upper bush is the arc-shaped of evagination, on the body
One end of sleeve is fixedly connected with head skirt, and the other end of body upper bush is fixedly connected with body lower sleeve.
The utility model and the prior art the difference is that, rat oral gavage assistor provided by the utility model is small and exquisite
Light, production simply, meets rat own bodies design feature and likes the habit got into the cave of feeling happy secretly.During use, rat
Without excitation, the laborsaving easy grasping of operator, and rat is in best stretching, extension by oral cavity, pharyngeal and oesophagus after sleeve stop naturally
State, insertion and drug administration by injection conducive to gastric perfusion needle are effectively prevented because three kinds of lethal common causes of stomach-filling (miss by gastric perfusion needle
Entering tracheae leads to rats death；Gastric perfusion needle because rat twisting struggle can not deeply feed pipe so that injecting liquid drug pharyngeal, choke into
Tracheae leads to pneumonia；Gastric perfusion needle is goed deep into after oesophagus because rat struggles, and the upward buckling knock-on of the lower part of the body is so that gastric perfusion needle is poked oesophagus and led
Cause esophageal fistula and it is dead).Also, using this rat oral gavage assistor can effective guarantee experiment operator safe operation, prevent
Only bite.
Similar with above-mentioned rat oral gavage assistant structure, the utility model additionally provides a kind of rat oral gavage assistor,
The rat oral gavage assistor includes the head skirt for fixing rat head and the body portion sleeve for fixing rat body, institute
The middle part internal diameter for stating head skirt is less than the internal diameter at both ends, and body portion sleeve is connect with the head skirt, forms tubular knot
Structure, the head skirt and body portion sleeve are opaque.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the rat oral gavage assistor of embodiment provided by the utility model；
Fig. 2 is the structural schematic diagram in another direction of rat oral gavage assistor shown in FIG. 1；
Fig. 3-6 is rat oral gavage householder method schematic diagram provided by the utility model；
Description of symbols:
1- rat oral gavage assistor；11- head skirt；12- body portion sleeve；121- body upper bush；122- body lower sleeve；2-
Rat.
Specific embodiment
The present invention will be further described with embodiment with reference to the accompanying drawing.But the use of these exemplary embodiments
Way and purpose are only used to enumerate the utility model, not constitute to the real protection scope of the utility model any type of any
It limits, it is more non-that the protection scope of the utility model is confined to this.
Some nouns of locality are defined in the present invention, in the case where not being specified to the contrary, used orientation
Word as " upper and lower " refers to rat oral gavage assistor provided by the utility model defines under normal usage, and with attached drawing 3
Shown in up and down direction it is consistent." inside and outside " refers to relative to inside and outside each components profile itself.These nouns of locality be in order to
It is easy to understand and uses, because without constituting the limitation to scope of protection of the utility model.
In the present invention, when a components are considered as " connection " another components, it, which can be, directly connects
It is connected to another components or may be simultaneously present connecting component placed in the middle.When a components are considered as " setting " another
On one components, it, which can be, is set up directly on another components or may be simultaneously present components placed in the middle.
Suitably with reference to shown in Fig. 1, Fig. 2, the rat oral gavage assistor of basic embodiment provided by the utility model includes
For fixing the head skirt 11 of rat head, the body portion sleeve 12 for fixing rat body and being arranged on the head
Light shield layer on sleeve 11 and body portion sleeve 12.The middle part internal diameter of the head skirt 11 is less than the internal diameter at both ends, described
Body portion sleeve 12 is connect with the head skirt 11, forms tubular construction.
Wherein the middle part internal diameter of the head skirt 11 be less than both ends internal diameter, i.e., head skirt 11 in both ends it is roomy, in
The narrow tubular in portion.Body portion sleeve 12 can be fixed together with head skirt 11 by adhesive, or pass through clamping
Part connection.In order to be suitable for the fixation of rat body part, the internal diameter of body portion sleeve 12 should be slightly larger than head skirt 11
Internal diameter.The light shield layer can be the black pigment smeared in head skirt 11 and body portion sleeve 12, or can be used black
Head skirt 11 and 12 entirety of body portion sleeve are wound by color insulating tape.
Different according to the weight of rat 2, the head skirt 11 and body portion sleeve 12 can have different sizes.Example
Such as, when the weight of rat is 200-400g, the internal diameter of the upper and lower ends of head skirt 11 is 6cm, 11 middle part of head skirt
Internal diameter is 4.5cm, and the internal diameter of body portion sleeve 12 can be 6.5cm；When the weight of rat is 400-600g, head skirt 11
The internal diameter of upper and lower ends is 6cm, and the internal diameter at 11 middle part of head skirt is 5cm, and the internal diameter of body portion sleeve 12 can be 7cm.
The rat oral gavage assistor that above embodiment provides passes through head skirt 11 and the connection composition of body portion sleeve 12
Tube-in-tube structure, small volume and less weight, production are simple, meet the body structure feature of rat itself, in conjunction with the setting of light shield layer, so that set
The inside of barrel structure is opaque, enables adaptation to rat and likes the characteristics of getting into the cave of feeling happy secretly.When the rat oral gavage assistor is using
When, rat is obedient to and is pierced in sleeve, rat excitation, the laborsaving easy grasping of operator are avoided.When rat is big
Mouse stomach-filling assistor braking after, the oral cavity of rat, pharyngeal and oesophagus are in best extended state naturally, conducive to gastric perfusion needle insertion and
Drug administration by injection.
On the basis of the above embodiment, it is preferable that the pliability of the material of the head skirt 11 is greater than the body
The pliability of the material of portion's sleeve 12.It since body portion sleeve 12 is used to fix the body part of rat, and can hold, therefore
Body portion sleeve 12 should use with certain hardness material make, for example, the material of body portion sleeve 12 hardness (or
Person's pliability) it is substantially identical as pulsation hardness (or the pliability) of bottle body of beverage bottle.PET plastic is preferably used in the present invention
It to be formed by being molded or being blow molded.
The head skirt 11 is made of the material that pliability is greater than body portion sleeve 12.Preferably, the head skirt
11 are made by blow molding mode of high density polyethylene (HDPE)s, have the characteristics that more thin and flexible, can specifically be used
HDPE5502 high density polyethylene (HDPE) makes head skirt 11.
Alternatively, the head skirt 11 and body portion sleeve 12 are all made of PET plastic production, the head skirt 11
Wall thickness is less than the wall thickness of body portion sleeve 12.To it is also possible that the pliability of the material of the head skirt 11 is greater than institute
State the pliability of the material of body portion sleeve 12.
Since head skirt 11 is more soft than body portion sleeve 12, there is flexibility, after the completion of stomach-filling, rat can voluntarily from
It is drilled out in rat oral gavage assistor.And the head skirt 11 and the junction of body portion sleeve 12 can be covered in body portion sleeve 12
On, it is then bonded again, to improve the fastness of the two connection.
In order to enable rat can more easily enter assistor and be braked, in a preferred implementation of the utility model
In example, as shown in Figure 1, the shape of generatrix of the head skirt 11 is arc-shaped, the internal diameter at the both ends of head skirt 11 of indent
Equal, body portion sleeve 12 includes body upper bush 121 and body lower sleeve 122, and the bus of the body upper bush 121 is evagination
Arc-shaped, one end of the body upper bush 121 is fixedly connected with head skirt 11, and the other end and the body of body upper bush 121 are trapped
Cylinder 122 is fixedly connected.
The bus of the head skirt 11 is rotated around center axis thereof, can form the head of shape as shown in Figure 1
Sleeve 11, for example, the internal diameter for forming both ends is 6cm, the tubular construction that middle part internal diameter is 4.5cm.The mother of the body upper bush 121
Line is rotated around center axis thereof, can form the body upper bush 121 of shape as shown in Figure 1, such as form the internal diameter at both ends
Respectively 6cm, 6.5cm, middle part internal diameter are that the tubular construction of 7cm, the wherein lesser one end of the internal diameter of upper bush 121 and head cover
Cylinder 11 connects, and the internal diameter of body lower sleeve 122 can be 6.5cm.
It is identical as the technical concept of above embodiment, the rat oral gavage of another embodiment provided by the utility model
Assistor includes the head skirt 11 for fixing rat head and the body portion sleeve 12 for fixing rat body, the head
The middle part internal diameter of sleeve 11 is less than the internal diameter at both ends, and body portion sleeve 12 is connect with the head skirt 11, forms tubular knot
Structure, the head skirt 11 and body portion sleeve 12 are opaque.In the present embodiment, the head skirt 11 can adopt
It is made of opaque polyurethane, body portion sleeve 12 can be made of black plastic.
Rat oral gavage assistor provided by the utility model utilizes the self-characteristic and body structure feature of rat, on the one hand
It can be conducive to operator's safety, effortlessly grasp rat；On the other hand effectively rat can be braked, keeps it solid in stomach-filling
Determine stationary position, mouth, pharynx, esophagus are in straight line substantially, are conducive to the insertion of gastric perfusion needle.
Based on above-mentioned rat oral gavage assistor, the utility model additionally provides a kind of rat oral gavage householder method, this is big
Mouse stomach-filling householder method the following steps are included:
S10, prepare to rat carry out stomach-filling before, one hand of operator gently pulls back the tail of rat 2, another
Hand holds rat oral gavage assistor 1, and the lower mouth of the body portion sleeve 12 of the rat oral gavage assistor 1 is directed at 2 head of rat, is inciting somebody to action
When the tail of rat 2 gently pulls back, rat 2, which can take advantage of a situation to creep forward, pierces the rat oral gavage assistor 1, the rat oral gavage
The 11 middle part internal diameter of head skirt of assistor 1 is less than the diameter of inner end, and the head of rat 2 and double fore paws are in extended tips sleeve 11
After be braked.
It creeps and is pierced in rat oral gavage assistor 1 for the ease of rat, preferably first rat 2 is placed on and is conducive to rat
On the platform creeped, covered for example, rat is placed on metal cage.As shown in figure 3, operator (such as experimenter) can be right
Hand holds the body portion sleeve 12 of rat oral gavage assistor 1, and left hand gently widens the tail portion of mouse, and rat 2, which can take advantage of a situation, pierces rat filling
In stomach assistor 1.
After S20, the fore paw of rat 2 and head are stretched out, operator mentions the ear for having pinched rat 2 and neck neck fur, such as
Shown in Fig. 6, rat oral cavity is opened naturally at this time, and oesophagus can carry out stomach-filling into gastric perfusion needle without buckling.
As shown in figure 5, mention pinch rat 2 when, the operator preferably uses left hand thumb and index finger to mention and has pinched ear
And neck neck fur, the right hand take rat oral gavage assistor 1 in one's arms to front, rat is in appropriate position at this time, can be convenient into
Gastric perfusion needle carries out stomach-filling.
As shown in figure 4, two fore paws of the rat 2 and head are stretched out after rat 2 pierces rat oral gavage assistor 1
The upper end of head skirt 11, two rear solid ends of rat 2 and tail portion are preferably placed at outside body portion sleeve 12, so that rat be better achieved
Braking.
After S30, stomach-filling, 2 position of rat is restored, that is, allows rat 2 to be in fore paw and catches metal cage lid
Position, rat 2 can voluntarily drill out rat oral gavage assistor 1 at this time.
The sequencing of embodiment of above is not only for ease of description, represent the superiority and inferiority of embodiment.
Finally, it should be noted that embodiment of above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail referring to aforementioned embodiments, those skilled in the art should
Understand: it can still modify to technical solution documented by aforementioned each embodiment, or special to part of technology
Sign is equivalently replaced；And these are modified or replaceed, each reality of the utility model that it does not separate the essence of the corresponding technical solution
Apply the spirit and scope of mode technical solution.
Claims (6)
1. a kind of rat oral gavage assistor, which is characterized in that the rat oral gavage assistor includes for fixing rat head
Head skirt (11), the body portion sleeve (12) for fixing rat body and setting are in the head skirt (11) and described
Light shield layer on body portion sleeve (12), the middle part internal diameter of the head skirt (11) are less than the internal diameter at both ends, body portion sleeve
(12) it is connect with the head skirt (11), forms tubular construction.
2. rat oral gavage assistor according to claim 1, which is characterized in that the material of the head skirt (11) it is soft
Softness is greater than the pliability of the material of body portion sleeve (12).
3. rat oral gavage assistor according to claim 2, which is characterized in that body portion sleeve (12) is moulded using PET
Material production.
4. rat oral gavage assistor according to claim 1, which is characterized in that the head skirt (11) and the body portion
Sleeve (12) is all made of PET plastic production, and the wall thickness of the head skirt (11) is less than the wall thickness of body portion sleeve (12).
5. rat oral gavage assistor according to claim 1, which is characterized in that the shape of generatrix of the head skirt (11)
Internal diameter for the arc-shaped of indent, the both ends of head skirt (11) is equal, and body portion sleeve (12) includes body upper bush (121)
With body lower sleeve (122), the bus of the body upper bush (121) is arc-shaped, one end of the body upper bush (121) of evagination
It is fixedly connected with head skirt (11), the other end of body upper bush (121) is fixedly connected with body lower sleeve (122).
6. a kind of rat oral gavage assistor, which is characterized in that the rat oral gavage assistor includes for fixing rat head
Head skirt (11) and body portion sleeve (12) for fixing rat body, the middle part internal diameter of the head skirt (11) is less than two
The internal diameter at end, body portion sleeve (12) are connect with the head skirt (11), form tubular construction, the head skirt (11)
It is opaque with body portion sleeve (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721419852.XU CN208481523U (en) | 2017-10-31 | 2017-10-31 | Rat oral gavage assistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721419852.XU CN208481523U (en) | 2017-10-31 | 2017-10-31 | Rat oral gavage assistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208481523U true CN208481523U (en) | 2019-02-12 |
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ID=65254049
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721419852.XU Active CN208481523U (en) | 2017-10-31 | 2017-10-31 | Rat oral gavage assistor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107595426A (en) * | 2017-10-31 | 2018-01-19 | 刘倩 | Rat oral gavage assistor and rat oral gavage householder method |
| CN110547209A (en) * | 2019-09-20 | 2019-12-10 | 重庆市畜牧科学院 | Liquid feeding auxiliary device and method for mice |
-
2017
- 2017-10-31 CN CN201721419852.XU patent/CN208481523U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107595426A (en) * | 2017-10-31 | 2018-01-19 | 刘倩 | Rat oral gavage assistor and rat oral gavage householder method |
| CN110547209A (en) * | 2019-09-20 | 2019-12-10 | 重庆市畜牧科学院 | Liquid feeding auxiliary device and method for mice |
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