CN208808730U - Novel rat oral gavage device - Google Patents
Novel rat oral gavage device Download PDFInfo
- Publication number
- CN208808730U CN208808730U CN201721714185.8U CN201721714185U CN208808730U CN 208808730 U CN208808730 U CN 208808730U CN 201721714185 U CN201721714185 U CN 201721714185U CN 208808730 U CN208808730 U CN 208808730U
- Authority
- CN
- China
- Prior art keywords
- stomach
- oral gavage
- rat oral
- filling syringe
- outlet tube
- 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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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a kind of novel rat oral gavage devices, comprising: stomach-filling syringe, the support chip for being connected to the stomach-filling syringe tail end, the outlet tube for being connected to the stomach-filling syringe head end, the arc gastric perfusion needle being connected on the outlet tube, the core bar being plugged in the stomach-filling syringe, the piston for being connected to the core bar head end, the push handle for being connected to the core bar tail end and the spring being connected between the support chip and push handle.The novel rat oral gavage device of the utility model pushes piston motion to carry out automatic gastric infusion, on the one hand makes stomach-filling administering medical liquids more uniform, do not need hand push when being on the other hand administered, conveniently can smoothly be administered, improve operational efficiency and quality using the convergent force of spring；The stomach that the setting of arc needle tubing greatly can be successfully inserted at rat conducive to arc gastric perfusion needle is administered, and spherical end can greatly reduce the damage to organs such as rat throat, esophagus, stomach.
Description
Technical field
The utility model relates to medical experiment apparatus field, in particular to a kind of novel rat oral gavage device.
Background technique
Oral gastric infusion is that medical animal experiment studies extremely wide administration route.Rat oral gavage administration refers to experiment
Medical fluid is directly injected to the process in rat stomach by rat oral area in the process, this is needed using rat oral gavage device in the process.It passes
System rat oral gavage device no matter draws medical fluid when in use or inject administration process is required to Manual push-pull, but in inject administration
When, need to control rat on one side toward contact, another side carries out inject administration simultaneously, operate it is very inconvenient, and the speed being administered with
The uniformity is difficult to control, often not high so as to cause operational efficiency and quality；On the other hand, in administration process, there is also because existing
Rat oral gavage device gastric perfusion needle structure problem and cause gastric perfusion needle insertion inconvenient, and be easy to cause the throat of rat, food
The problem of damage of the organs such as road, stomach.
Utility model content
It is a kind of novel the technical problem to be solved by the utility model is in view of the deficiency of the prior art, provide
Rat oral gavage device.
In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of novel rat oral gavage device, packet
Include: stomach-filling syringe, the outlet tube for being connected to the stomach-filling syringe head end, connects the support chip for being connected to the stomach-filling syringe tail end
The arc gastric perfusion needle that is connected on the outlet tube, is connected to the core bar head end at the core bar being plugged in the stomach-filling syringe
Piston, the push handle for being connected to the core bar tail end and the spring being connected between the support chip and push handle；
The periphery of the core bar offers multiple fixed grooves along its length；
It is additionally provided with fixed block on the support chip, through-hole is offered in the fixed block, is inserted with use in the through-hole
In the bolt for passing through the through-hole and cooperation is inserted into the fixed groove.
Preferably, the support chip is in the form of annular discs, and periphery has curved to the head end direction of the stomach-filling syringe
Curved portion.
Preferably, the tube head of the outlet tube is connected with cylindrical portion and taper portion in turn along liquid direction is gone out.
Preferably, the arc gastric perfusion needle includes the connecting sleeve connecting with the tube head of the outlet tube, is connected to institute
It states the arc needle tubing of the connecting sleeve other end and is connected to the spherical end of the arc needle tubing other end, in the spherical end
Offer multiple fluid holes.
Preferably, it is provided in the connecting sleeve and cooperates stepped hole, the stepped hole with the tube head of the outlet tube
Including the bellmouth with the cylindrical hole of cylindrical portion cooperation and with taper portion cooperation set gradually along liquid direction out.
Preferably, the inner circumferential of the cylindrical hole is provided with sealing ring.
Preferably, limited location snap ring is also connected on the outlet tube, the limited location snap ring is in the rear end of the tube head.
Preferably, graduation mark is provided on the outer wall of the stomach-filling syringe.
The beneficial effects of the utility model are: the novel rat oral gavage device of the utility model, is drawn by spring in medical fluid
When storage energy, in gastric infusion, spring releases energy, and utilizes the convergent force of spring that piston motion is pushed to carry out automatic stomach-filling
Administration, on the one hand makes stomach-filling administering medical liquids more uniform, does not need hand push when being on the other hand administered, and conveniently can smoothly be administered, mention
High operational efficiency and quality；Arc gastric perfusion needle is connect by connecting sleeve with outlet tube, can be improved its leakproofness, be prevented leakage；
The stomach that the setting of arc needle tubing greatly can be successfully inserted at rat conducive to arc gastric perfusion needle is administered, and spherical end can be significantly
Reduce the damage to organs such as rat throat, esophagus, stomach.The utility model is ingenious in design, sound construction, can be rat oral gavage
Operation provides very big convenience, has good popularization and application foreground.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the novel rat oral gavage device of the utility model；
Fig. 2 is the bolt of the utility model and the cooperation schematic diagram of fixed groove；
Fig. 3 is the outlet tube of the utility model and the cooperation schematic diagram of connecting sleeve；
Fig. 4 is structural schematic diagram of the novel rat oral gavage device of the utility model when spring is in tensional state；
Fig. 5 be the utility model novel rat oral gavage device spring in the raw when structural schematic diagram.
Description of symbols:
1-stomach-filling syringe；2-support chips；3-outlet tubes；4-arc gastric perfusion needles；5-core bars；6-pistons；7-push away
Handle；8-springs；9-graduation marks；20-fixed blocks；21-through-holes；22-bolts；23-curved portions；30-tube heads；31-cylinders
Shape portion；32-taper portions；33-limited location snap rings；40-spherical ends；41-fluid holes；42-connecting sleeves；43-stepped holes；
44-cylindrical holes；45-bellmouths；46-sealing rings；50-fixed grooves.
Specific embodiment
The utility model is described in further detail below with reference to embodiment, to enable those skilled in the art's reference say
Bright book text can be implemented accordingly.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein are not precluded one or more
The presence or addition of a other elements or combinations thereof.
As shown in Figs. 1-5, a kind of novel rat oral gavage device of the present embodiment, comprising: stomach-filling syringe 1 is connected to gastric perfusion needle
The cylinder support chip 2 of 1 tail end, the arc gastric perfusion needle 4 being connected on outlet tube 3, is inserted the outlet tube 3 for being connected to 1 head end of stomach-filling syringe
The core bar 5 that is located in stomach-filling syringe 1, is connected to the push handle 7 of 5 tail end of core bar and is connected to the piston 6 for being connected to 5 head end of core bar
Spring 8 between support chip 2 and push handle 7.
Stomach-filling syringe 1 selects short and thick tubular, can increase liquid storage amount, by that can be operated convenient for holding stomach-filling syringe 1.
When in stomach-filling syringe 1 to draw stomach-filling medical fluid, piston 6 is in the head end of stomach-filling syringe 1, and spring 8 is at this time
Nature (spring 8 is former long)；After stomach-filling syringe 1 draws stomach-filling medical fluid, piston 6 is mobile to the tail end of stomach-filling syringe 1, bullet
Spring 8 is in tensional state (spring 8 is greater than former long), has and restores former long trend, generates piston 6 to stomach-filling syringe 1
The mobile trend of head end.
The periphery of core bar 5 offers multiple fixed grooves 50 along its length；Fixed block 20 is additionally provided on support chip 2,
Through-hole 21 is offered in fixed block 20, is inserted in through-hole 21 and is inserted into fixed groove 50 for passing through through-hole 21 and cooperating
Bolt 22.
Referring to Fig. 4 and Fig. 5, spring 8 is in tensional state in Fig. 4, and spring 8 is in the raw in Fig. 5.Spring 8 and insert
Pin 22 cooperates, and realizes automatic injection for the elastic force effect in injection through spring 8.Specifically, when in use, first by bolt
22 extract out of fixed groove 50, then piston 6 is pulled to move right, and draw stomach-filling medical fluid to stomach-filling syringe 1 using outlet tube 3
Interior, spring 8 becomes tensional state from nature, after the completion of drawing stomach-filling medical fluid, then by bolt 22 in fixed block 20
Through-hole 21 is inserted into fixed groove 50, is kept fixed core bar 5；Then it is injected, when injection, arc gastric perfusion needle 4 is inserted
After entering rat stomach, bolt 22 is extracted from fixed groove 50, spring 8 elastic force effect under, piston 6 pushed to walk move
It is dynamic, so that the stomach-filling medical fluid in stomach-filling syringe 1 is squeezed discharge, into rat stomach, it is finally completed gastric infusion.Pass through spring
8 store energy when drawing stomach-filling liquid, and the convergent force in injection using spring 8 pushes the movement of piston 6 to carry out automatic stomach-filling and gives
On the one hand medicine makes stomach-filling administering medical liquids more uniform, do not need hand push when being on the other hand administered, and conveniently can smoothly be administered, improve
Operational efficiency and quality can overcome traditional rat oral gavage device to need to hand push on one side control rat while piston 6 to carry out in administration
It is administered and causes unhandy defect.
Support chip 2 is in the form of annular discs, and periphery has to the curved curved portion 23 in the head end direction of stomach-filling syringe 1.Curved portion
23, convenient for holding, make operator when drawing stomach-filling medical fluid and administration according to convenient.Specifically, such as in administration, operator's hand
Stomach-filling syringe 1 is held, the curved portion 23 of support chip 2 is bonded with the first web part of hand, then passes through 8 automatic chemical feeding of spring, behaviour
Facilitate, can also reduce the work difficulty of operator.
The tube head 30 of outlet tube 3 is connected with cylindrical portion 31 and taper portion 32 in turn along liquid direction out.Arc gastric perfusion needle 4 includes
The connecting sleeve 42 that connect with the tube head 30 of outlet tube 3 is connected to the arc needle tubing of 42 other end of connecting sleeve and is connected to arc
The spherical end 40 of the shape needle tubing other end offers multiple fluid holes 41 in spherical end 40.Be provided in connecting sleeve 42 with
The tube head 30 of outlet tube 3 cooperates stepped hole 43, and stepped hole 43 includes cooperating along what liquid direction out was set gradually with cylindrical portion 31
Cylindrical hole 44 and the bellmouth 45 cooperated with taper portion 32.The inner circumferential of cylindrical hole 44 is provided with sealing ring 46, and sealing ring 46 uses
Rubber material.Limited location snap ring 33 is also connected on outlet tube 3, limited location snap ring 33 is in the rear end of tube head 30.
Connecting sleeve 42 is arranged be connected on outlet tube 3 after, taper portion 32 cooperation is inserted into bellmouth 45, cylindrical portion 31
Cooperation is inserted into cylindrical hole 44, to can guarantee the sealing of interface, and its connection can be made stronger, sealing ring 46 can be into one
Step improves leakproofness, prevents leakage.And its convenient disassembly, convenient for carrying out medical fluid absorption by outlet tube 3.Connecting sleeve 42 with go out
After liquid pipe 3 connects, limited location snap ring 33 is just fastened on the right end of connecting sleeve 42, realizes limit and positioning, prevents outlet tube 3
Phenomena such as causing leakage or connecting sleeve 42 to damage in excessive insertion connecting sleeve 42.
After connecting sleeve 42 is set on outlet tube 3, arc needle tubing is being inserted into the stomach of rat, then carry out to
Medicine, stomach-filling medical fluid are drained into the stomach of rat into crossing after arc needle tubing by the fluid hole 41 in spherical end 40.Arc needle tubing energy
Greatly it is convenient for the smooth insertion of arc gastric perfusion needle 4, spherical end 40 can be greatly reduced to organs such as rat throat, esophagus, stomach
Damage.
Graduation mark 9 is provided on the outer wall of stomach-filling syringe 1.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable
The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure
Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model
System.
It is not only in the description and the implementation although the embodiments of the present invention have been disclosed as above
Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art,
Other modifications may be easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
It is not limited to specific details with novel.
Claims (8)
1. a kind of novel rat oral gavage device characterized by comprising stomach-filling syringe, the branch for being connected to the stomach-filling syringe tail end
Blade, the outlet tube for being connected to the stomach-filling syringe head end, the arc gastric perfusion needle being connected on the outlet tube, be plugged in it is described
Core bar in stomach-filling syringe, is connected to the push handle of the core bar tail end and is connected to institute the piston for being connected to the core bar head end
State the spring between support chip and push handle；
The periphery of the core bar offers multiple fixed grooves along its length；
It is additionally provided with fixed block on the support chip, through-hole is offered in the fixed block, is inserted in the through-hole for wearing
It crosses the through-hole and cooperates the bolt being inserted into the fixed groove.
2. novel rat oral gavage device according to claim 1, which is characterized in that the support chip is in the form of annular discs, periphery
With the curved curved portion in head end direction to the stomach-filling syringe.
3. novel rat oral gavage device according to claim 1, which is characterized in that the tube head of the outlet tube is along liquid direction out
It is connected with cylindrical portion and taper portion in turn.
4. novel rat oral gavage device according to claim 3, which is characterized in that the arc gastric perfusion needle include with it is described go out
The connecting sleeve of the tube head connection of liquid pipe is connected to the arc needle tubing of the connecting sleeve other end and is connected to the arc needle
The spherical end of the pipe other end offers multiple fluid holes in the spherical end.
5. novel rat oral gavage device according to claim 4, which is characterized in that be provided in the connecting sleeve with it is described
The tube head of outlet tube cooperates stepped hole, and the stepped hole includes the column with cylindrical portion cooperation set gradually along liquid direction out
Shape hole and the bellmouth cooperated with the taper portion.
6. novel rat oral gavage device according to claim 5, which is characterized in that the inner circumferential of the cylindrical hole is provided with sealing
Circle.
7. novel rat oral gavage device according to claim 1, which is characterized in that be also connected with limiting card on the outlet tube
Ring, the limited location snap ring are in the rear end of the tube head of the outlet tube.
8. novel rat oral gavage device according to claim 1, which is characterized in that be provided on the outer wall of the stomach-filling syringe
Graduation mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721714185.8U CN208808730U (en) | 2017-12-11 | 2017-12-11 | Novel rat oral gavage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721714185.8U CN208808730U (en) | 2017-12-11 | 2017-12-11 | Novel rat oral gavage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208808730U true CN208808730U (en) | 2019-05-03 |
Family
ID=66267397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721714185.8U Expired - Fee Related CN208808730U (en) | 2017-12-11 | 2017-12-11 | Novel rat oral gavage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208808730U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110420072A (en) * | 2019-07-24 | 2019-11-08 | 莆田学院 | A kind of rat oral gavage device applied to ergology |
| CN110693641A (en) * | 2019-11-04 | 2020-01-17 | 华中科技大学同济医学院附属协和医院 | Pre-assembled pen type ICI injection device and operation method |
-
2017
- 2017-12-11 CN CN201721714185.8U patent/CN208808730U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110420072A (en) * | 2019-07-24 | 2019-11-08 | 莆田学院 | A kind of rat oral gavage device applied to ergology |
| CN110420072B (en) * | 2019-07-24 | 2024-01-23 | 莆田学院 | Be applied to functional rat lavage device |
| CN110693641A (en) * | 2019-11-04 | 2020-01-17 | 华中科技大学同济医学院附属协和医院 | Pre-assembled pen type ICI injection device and operation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190503 Termination date: 20201211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |