CN216754709U - Injection needle for vitreous body cavity of mouse eye for experiment - Google Patents
Injection needle for vitreous body cavity of mouse eye for experiment Download PDFInfo
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- CN216754709U CN216754709U CN202122096303.6U CN202122096303U CN216754709U CN 216754709 U CN216754709 U CN 216754709U CN 202122096303 U CN202122096303 U CN 202122096303U CN 216754709 U CN216754709 U CN 216754709U
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- needle
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- mouse eye
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- injection needle
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Abstract
The utility model belongs to the field of microsyrinths, and particularly relates to an injection needle for a vitreous cavity of an experimental mouse eye. The utility model can be made into the replaceable needle head with lower cost, the needle head is firmly combined and convenient to replace, the diameter of the wound required by the mouse is reduced, the reflux is reduced, and the content of the injected medicine is accurately controlled.
Description
Technical Field
The utility model relates to the technical field of microsyrinths, in particular to an injection needle for a vitreous cavity of an experimental mouse eye.
Background
At present, the micro sample injectors on the market are mainly 3 types;
1. the medical minimum-model injector, the insulin injection needle and the like have low precision, large error and more medicine residues in the needle tube, and cannot be used for experimental research.
2. The microsyringe can inject 1.5 ~ 5ul liquid or gas, and the range is accurate, but the syringe needle is too thick, causes too big wound to mouse eyeball, can not be airtight after pulling out the needle, causes the medicine to flow backward in a large number, influences the experimental result.
3. The microsyringe has the advantages of high precision, small error and thin needle head, and can be used for experiments. The disadvantages are high price, thin and flexible needle head and easy abrasion of needle point.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art and provides an injection needle for a vitreous cavity of an eye of an experimental mouse.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides an injection needle of experiment mouse eye glass body chamber, includes the needle file and installs the metal syringe needle on the needle file, the metal syringe needle overcoat has cup jointed the glass syringe needle after the drawing, cup jointed a plurality of ring rubber stopper on the metal syringe needle, and a plurality of ring rubber stopper are located the glass syringe needle, the blood sampling straw is installed to the needle file, installs the piston in the blood sampling straw.
Preferably, the glass needle has a length of about 90mm, an outer diameter of 1.35-1.4mm, an inner diameter of 0.88-0.9mm, and the metal needle has a length of 78mm and an outer diameter of 0.6 mm.
Preferably, the surface of the glass needle head is provided with 1 muL scale marks.
Preferably, two adjacent rubber ring stoppers form a working chamber.
Preferably, the filling material between the glass needle and the metal needle forms a closed chamber.
Preferably, one end of the glass needle far away from the needle seat is provided with a needle point.
According to the utility model, the injection needle for the vitreous cavity of the mouse eye for the experiment can be made into a replaceable needle head at a lower cost, the needle head is firmly combined and convenient to replace, the wound diameter required by the mouse is reduced, the reflux is reduced, and the content of the injected medicine is accurately controlled.
Drawings
FIG. 1 is a schematic sectional structural view of an injection needle for vitreous cavity of an experimental rat eye according to the present invention;
fig. 2 is a schematic structural diagram of an injection needle for vitreous body cavities of laboratory mouse eyes according to the present invention.
In the figure: 1 needlepoint, 2 annular rubber plugs, 3 metal needles, 4 needle seats and 5 glass needles.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-2, an injection needle for a vitreous cavity of an experimental mouse eye comprises a needle seat 4 and a metal needle 3 installed on the needle seat 4, wherein the metal needle 3 is sleeved with a glass needle 5, the metal needle 3 is sleeved with a plurality of annular rubber plugs 2, the annular rubber plugs 2 are located in the glass needle 5, a blood sampling straw is installed on the needle seat 4, and a piston is installed in the blood sampling straw.
In the utility model, the length of the glass needle 5 is about 90mm, the outer diameter is 1.35-1.4mm, the inner diameter is 0.88-0.9mm, the length of the metal needle 3 is 78mm, and the outer diameter is 0.6 mm.
In the utility model, 1 microliter of scale marks are arranged on the surface of the glass needle head 5.
In the utility model, two adjacent annular rubber plugs 2 form a working cavity.
In the utility model, a closed chamber is formed by filling materials between the glass needle 5 and the metal needle 3.
In the utility model, the end of the glass needle 5, which is far away from the needle seat 4, is provided with the needle point 1, the sharp part of the glass needle is beneficial to easily puncturing a vitreous cavity, the body part is provided with a scale mark of 1 mu L, the glass needle is sleeved outside the metal needle, and the tip part of the metal needle is sleeved with the annular rubber plug, thus ensuring the air tightness and the accuracy of the liquid suction amount.
The utility model discloses an injection needle for a vitreous cavity of an experimental mouse eye, wherein an experimental operator can firstly sleeve a consumable glass needle head on a metal needle head to suck injection liquid with required dosage, then the glass needle head is penetrated into the vitreous cavity of the mouse, whether the penetration is successful or not and the penetration depth can be observed through the dilated pupil of the mouse, after the penetration into the vitreous cavity is determined, 1 mu L of liquid drops are sucked by the injection needle, then the liquid drops are formed on a sterilized glass sheet by the injection needle, then the injection needle is taken to suck the liquid drops on the glass sheet, when the 1 mu L of scale is sucked, the glass needle head part is slowly penetrated into the vitreous cavity of the mouse eye, after the liquid is confirmed to enter the vitreous cavity, the push rod of the metal injection needle is directly used for slow injection, so that the injection liquid enters the vitreous cavity of the mouse eye, and the experimental operation is completed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (6)
1. The utility model provides an injection needle of experiment mouse eye vitreous body chamber, includes needle file (4) and installs on needle file (4) metal syringe needle (3), its characterized in that, metal syringe needle (3) outer cup joint have glass syringe needle (5), a plurality of ring rubber stopper (2) have been cup jointed on metal syringe needle (3), and a plurality of ring rubber stopper (2) are located glass syringe needle (5), the blood sampling straw is installed in needle file (4), installs the piston in the blood sampling straw.
2. An experimental mouse eye vitreous cavity injection needle according to claim 1, characterized in that said glass needle (5) has a length of 90mm, an outer diameter of 1.35-1.4mm, an inner diameter of 0.88-0.9mm, a metal needle (3) having a length of 78mm and an outer diameter of 0.6 mm.
3. The injection needle for the vitreous cavity of an experimental mouse eye according to claim 1, wherein the surface of the glass needle (5) is provided with 1 μ L scale mark.
4. An injection needle for a vitreous chamber of an experimental mouse eye according to claim 1, characterized in that two adjacent rubber ring stoppers (2) form a working chamber.
5. A laboratory mouse eye vitreous cavity injection needle according to claim 1, characterized in that the filling between the glass needle (5) and the metal needle (3) forms a closed chamber.
6. An injection needle for vitreous cavity of laboratory mouse eye according to claim 1, characterized in that the end of said glass needle (5) far from needle seat (4) is equipped with needle tip (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122096303.6U CN216754709U (en) | 2021-09-01 | 2021-09-01 | Injection needle for vitreous body cavity of mouse eye for experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122096303.6U CN216754709U (en) | 2021-09-01 | 2021-09-01 | Injection needle for vitreous body cavity of mouse eye for experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216754709U true CN216754709U (en) | 2022-06-17 |
Family
ID=81953774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122096303.6U Active CN216754709U (en) | 2021-09-01 | 2021-09-01 | Injection needle for vitreous body cavity of mouse eye for experiment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216754709U (en) |
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2021
- 2021-09-01 CN CN202122096303.6U patent/CN216754709U/en active Active
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