CN216985280U - Mouse stomach irrigator operated by giving test object to mouse through mouth - Google Patents
Mouse stomach irrigator operated by giving test object to mouse through mouth Download PDFInfo
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- CN216985280U CN216985280U CN202120751101.8U CN202120751101U CN216985280U CN 216985280 U CN216985280 U CN 216985280U CN 202120751101 U CN202120751101 U CN 202120751101U CN 216985280 U CN216985280 U CN 216985280U
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Abstract
The utility model relates to a mouse stomach irrigator for orally administering a mouse test object, which comprises a needle cylinder, a piston and a piston shaft, wherein the front end of the needle cylinder is narrowed to form a tubular stomach irrigator, and the needle head of the stomach irrigator is an arc solid body; the needle cylinder and the stomach perfusion needle are both made of transparent materials; the wall of the stomach perfusion needle is provided with at least one perfusion hole at the junction of the stomach perfusion needle and the needle head; the piston is movably arranged in the needle cylinder, one end of the piston shaft is connected with the piston, and the other end of the piston shaft extends out of the needle cylinder. The beneficial effects are that: the needle cylinder and the stomach filling needle are both made of transparent materials, so that observation is facilitated, and whether air embolism is formed or not can be known conveniently; the needle head of the intragastric perfusion needle is an arc solid body, so that the esophagus of a mouse is prevented from being damaged; the wall of the stomach filling needle is provided with at least one perfusion hole at the junction of the stomach filling needle and the needle head, so that the tested substance is prevented from remaining.
Description
Technical Field
The utility model relates to the field of medical test instruments, in particular to a mouse stomach irrigator which is orally given to a mouse test object for operation.
Background
Oral gavage of the test subjects is the most common and simple method of administering the test subjects to mice. At present, a test object feeding tool for gastric lavage usually adopts an inverted water drop type metal gastric lavage needle matched with an injector, and an operator usually damages the esophagus of a mouse due to improper operation of the tool, so that the mouse dies, and the test fails. Considering that the viscosity degrees of the tested substances are different, the metal gastric perfusion needle is made of opaque metal materials, and air embolism is easily formed in the needle cylinder and cannot be seen by naked eyes, so that the dosage of the tested substances is actually inaccurate.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a mouse stomach irrigator which is operated by orally administering a test object to a mouse, so as to overcome the defects in the prior art.
The technical scheme for solving the technical problems is as follows: a mouse stomach irrigator for orally administering a test object to a mouse comprises a needle cylinder, a piston and a piston shaft, wherein the front end of the needle cylinder is narrowed to form a tubular stomach irrigator, and the needle head of the stomach irrigator is an arc solid body; the needle cylinder and the stomach perfusion needle are both made of transparent materials; the needle wall of the stomach filling needle is provided with at least one filling hole at the junction of the needle wall and the needle head; the piston is movably arranged in the needle cylinder, one end of the piston shaft is connected with the piston, and the other end of the piston shaft extends out of the needle cylinder.
On the basis of the technical scheme, the utility model can be further improved as follows.
Furthermore, the needle cylinder is provided with scale marks, and the measuring range of the scale marks is 0.18 ml-0.70 ml; the initial scale mark is 0.18ml, the interval between adjacent scales is 0.01ml, and other corresponding scales in the measuring range are respectively marked with 0.20ml, 0.30ml, 0.40ml, 0.50ml, 0.60ml and 0.70 ml.
Further, the length of the cylinder is 50mm, and the tube diameter is 6 mm.
Furthermore, the length of the intragastric perfusion needle is 50mm, the pipe diameter is 0.8mm, and the length of the needle head of the intragastric perfusion needle is 5 mm.
Furthermore, the end surface of the needle head is spherical.
Further, the length of the piston shaft was 65 mm.
Furthermore, the device also comprises a piston handle, and one end of the piston shaft extending out of the needle cylinder is connected with the piston handle.
Further, the number of the pouring holes is two, and the two pouring holes are arranged at 180 degrees.
Furthermore, the needle cylinder and the stomach filling needle are made of pp plastics.
The utility model has the beneficial effects that:
1) the needle cylinder and the stomach filling needle are both made of transparent materials, so that observation is facilitated, and whether air embolism is formed or not can be known conveniently;
2) the needle head of the intragastric perfusion needle is an arc solid body, so that the esophagus of a mouse is prevented from being damaged;
3) the wall of the stomach filling needle is provided with at least one filling hole at the junction of the wall and the needle head, so that the tested object is prevented from being left;
4) the needle cylinder is provided with scale marks, so that the administration amount can be conveniently and accurately known.
Drawings
FIG. 1 is a schematic diagram of a configuration of a mouse gavage apparatus of the present invention that operates by oral administration of a mouse test substance.
In the drawings, the components represented by the respective reference numerals are listed below:
1. syringe, 110, stomach filling needle, 111, needle, 112, perfusion hole, 2, piston, 3, piston shaft, 4, piston handle.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.
Example 1
As shown in figure 1, the mouse stomach irrigator for orally administering a test object to a mouse comprises a syringe 1, a piston 2 and a piston shaft 3, wherein the front end of the syringe 1 is narrowed to form a tubular stomach irrigator 110, and a needle head 111 of the stomach irrigator 110 is an arc solid body; the needle cylinder 1 is made of transparent materials, the stomach filling needle 110 is made of transparent materials, and the stomach filling needle 110 is formed by narrowing the front end of the needle cylinder 1, so that the stomach filling needle 110 and the needle cylinder 1 are integrally formed; at least one perfusion hole 112 is arranged on the needle wall of the intragastric perfusion needle 110 at the junction of the intragastric perfusion needle 110 and the needle head 111; the piston 2 is movably arranged in the needle cylinder 1, one end of the piston shaft 3 is connected with the piston 2, and the other end of the piston shaft 3 extends out of the needle cylinder 1; when the syringe 1 is filled with the test substance and the plunger 2 is pushed by the plunger shaft 3 to move in the syringe 1, the test substance in the syringe 1 enters the intragastric administration needle 110 and is then discharged from the injection hole 112.
Example 2
As shown in fig. 1, this embodiment is further optimized based on embodiment 1, and its specific scheme is as follows:
the needle cylinder 1 is provided with scale marks, the measuring range of the scale marks is 0.18 ml-0.70 ml, according to the technical specification for disinfection (2002), the weight of a mouse with 18 g-22 g is used in most experiments, the weight of a mouse with a test object is given to a small part of the experiment with 25 g-30 g, and the weight of the mouse with the test object is usually given to 0.1 ml-0.2 ml of the test object per 10g of the weight, so the measuring range of 0.18 ml-0.70 ml can meet the use requirement; the initial scale is marked with 0.18ml, the initial scale is close to the lavage needle 110, the distance between adjacent scales is 0.01ml, the dosage of the tested object can be accurately measured to two-digit decimal, and other corresponding scales in the range are respectively marked with 0.20ml, 0.30ml, 0.40ml, 0.50ml, 0.60ml and 0.70ml, so that the dosage can be conveniently and quickly known.
Example 3
As shown in fig. 1, this embodiment is further optimized based on embodiment 1 or 2, and the specific scheme is as follows:
the length of the needle cylinder 1 is 50mm, and the pipe diameter is 6 mm;
furthermore, the length of the stomach filling needle 110 is 50mm, the tube diameter is 0.8mm, and the length of the needle head 111 of the stomach filling needle 110 is 5mm, i.e. the length of the arc solid body is 5 mm.
Example 4
As shown in fig. 1, this embodiment is further optimized based on any one of embodiments 1 to 3, and the specific scheme is as follows:
the end surface of the needle 111 is spherical.
Example 5
As shown in fig. 1, this embodiment is further optimized based on any embodiment of embodiments 1 to 4, and the specific scheme thereof is as follows:
the length of the piston shaft 3 is 65 mm.
In addition, the mouse stomach irrigator which is operated by giving a test object to a mouse through mouth also comprises a piston handle 4, and one end of the piston shaft 3, which extends out of the needle cylinder 1, is connected with the piston handle 4, so that the piston 2 is conveniently pushed and pulled to move.
Example 6
As shown in fig. 1, this embodiment is further optimized based on any embodiment of embodiments 1 to 5, and the specific scheme is as follows:
the number of the perfusion holes 112 is two, and the two perfusion holes 112 are arranged at 180 degrees, however, it is not excluded that the number of the perfusion holes 112 is other numbers, such as 3, if 3, 3 perfusion holes 112 are distributed at equal angles of 360 degrees, or 4 perfusion holes 112 are distributed at equal angles of 360 degrees, if 4, the 4 perfusion holes 112 are distributed at equal angles of 360 degrees, so as to facilitate the suction and discharge of the test object.
Example 7
As shown in fig. 1, this embodiment is further optimized based on any one of embodiments 1 to 6, and the specific scheme is as follows:
the needle cylinder 1 and the stomach filling needle 110 are made of pp plastics, the transparency can meet the use requirement, and the whole size is stable after molding.
Example 8
As shown in fig. 1, this embodiment is further optimized based on any one of embodiments 1 to 7, and the specific scheme is as follows:
the scale mark is arranged on the stomach irrigation needle 110 from the end part of the needle head 111, the initial scale of the scale mark is 0, and the range of the scale mark on the stomach irrigation needle 110 is equal to the length of the stomach irrigation needle 110, so that the insertion depth can be conveniently measured, and the situation that the stomach irrigation needle is inserted too deeply or too shallowly can be prevented.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (9)
1. A mouse stomach irrigator for oral administration of a mouse test object is characterized by comprising a needle cylinder (1), a piston (2) and a piston shaft (3), wherein the front end of the needle cylinder (1) is narrowed to form a tubular stomach irrigation needle (110), and a needle head (111) of the stomach irrigation needle (110) is an arc solid body; the needle cylinder (1) and the stomach filling needle (110) are both made of transparent materials; the wall of the stomach irrigation needle (110) is provided with at least one perfusion hole (112) at the junction of the stomach irrigation needle and the needle head (111); the piston (2) is movably arranged in the needle cylinder (1), one end of the piston shaft (3) is connected with the piston (2), and the other end of the piston shaft extends out of the needle cylinder (1).
2. The mouse gavage apparatus for oral administration of a mouse test substance according to claim 1, wherein said syringe (1) has a scale line, said scale line having a range of 0.18ml to 0.70 ml; the initial scale mark is 0.18ml, the interval between adjacent scales is 0.01ml, and other corresponding scales in the range are respectively marked with 0.20ml, 0.30ml, 0.40ml, 0.50ml, 0.60ml and 0.70 ml.
3. The gastric lavage of claim 1, wherein the syringe (1) has a length of 50mm and a tube diameter of 6 mm.
4. The device of claim 3, wherein the length of the needle (110) is 50mm, the diameter of the tube is 0.8mm, and the length of the needle (111) of the needle (110) is 5 mm.
5. The device as claimed in claim 4, wherein the end surface of the needle (111) is spherical.
6. An oral mouse gavage apparatus for use with a mouse test subject according to claim 3, wherein said piston shaft (3) is 65mm in length.
7. The mouse stomach irrigator for oral administration of a mouse test substance according to any one of claims 1 to 6, further comprising a piston handle (4), wherein one end of the piston shaft (3) extending out of the syringe (1) is connected with the piston handle (4).
8. The mouse gavage apparatus for oral administration of a mouse subject according to any one of claims 1 to 6, wherein the number of said infusion holes (112) is two, and two of said infusion holes (112) are arranged at 180 degrees.
9. A mouse gavage device for oral administration of a mouse subject according to any one of claims 1 to 6 characterised in that the barrel (1) and the gavage needle (110) are made of pp plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120751101.8U CN216985280U (en) | 2021-04-13 | 2021-04-13 | Mouse stomach irrigator operated by giving test object to mouse through mouth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120751101.8U CN216985280U (en) | 2021-04-13 | 2021-04-13 | Mouse stomach irrigator operated by giving test object to mouse through mouth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216985280U true CN216985280U (en) | 2022-07-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120751101.8U Active CN216985280U (en) | 2021-04-13 | 2021-04-13 | Mouse stomach irrigator operated by giving test object to mouse through mouth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216985280U (en) |
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2021
- 2021-04-13 CN CN202120751101.8U patent/CN216985280U/en active Active
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