Animal experiment gavage quantitative intubation device

Abstract

The utility model discloses an animal experiment gavage quantitative intubation device which comprises a cylinder body, a connecting tube is arranged on the side portion of the cylinder body, an installation cylinder is connected to the outer wall of the connecting tube in a threaded and penetrating mode, an intubation tube is fixedly connected to the side portion of the installation cylinder in a sleeved mode, and a protection mechanism used for shielding the outside of the intubation tube is arranged on the side portion of the cylinder body. The protection mechanism comprises a fixing cylinder, a supporting cylinder and a connecting cylinder, the fixing cylinder and the supporting cylinder are both located outside the insertion pipe, the connecting cylinder is arranged on the side portion of the supporting cylinder in a sliding mode, and the fixing cylinder, the supporting cylinder and the connecting cylinder are used for shielding the outside of the insertion pipe. The fixing cylinder, the supporting cylinder, the connecting cylinder, the locking column, the fixing frame, the positioning seat and the positioning block are matched with one another, the fixing cylinder, the supporting cylinder and the connecting cylinder shield the outer portion of the cannula, the positioning block limits the relative position of the fixing frame and the positioning seat, and therefore the cannula can be sealed and protected when the cannula is not used, and the use safety of the cannula is improved. And the cannula is prevented from being polluted.

Description

Technical Field

[0001] The utility model relates to the field of quantitative gastric intubation devices for animal experiments, in particular to a quantitative gastric intubation device for animal experiments. Background Art

[0002] In laboratories, animal experiments are usually conducted. During the animal experiments, the animals need to be gavage-administered quantitative intubation, and a gavage-administered quantitative intubation device is used.

[0003] Application No. 202020220399.5 mentions a gavage cannula for animal experiments, which includes a cylinder and a handle arranged on the lower side of the cylinder for easy holding. A liquid storage chamber for storing liquid medicine is provided inside the cylinder, and a piston push block is provided in the liquid storage chamber. A piston rod is provided in the middle position of the left end of the piston push block. The piston rod passes through the piston hole at the left end of the cylinder, and a pull block is provided at the end of the piston hole. An opening is provided at the right end of the cylinder opposite to the piston hole, and an end cover is provided at the opening. A liquid outlet pipe is provided in the middle position of the end cover, and a cannula for inserting into the animal body is provided at the end of the liquid outlet pipe. A connecting sleeve is provided at the connecting end of the cannula, and the connecting sleeve and the liquid outlet pipe are connected by a thread.

[0004] The cylinder and the piston push block cooperate to push the gavage liquid out from the inside of the cylinder in a quantitative manner, and then the gavage liquid enters the stomach of the animal from the inside of the cannula to perform quantitative intubation on the animal. When the cannula is not in use, the cannula is usually exposed to the outside, and the cannula may be contaminated, affecting the accuracy of the experiment. In addition, the animal experiment gavage quantitative intubation device is not convenient for shielding and protecting the cannula when the cannula is not in use, and has certain limitations. Utility Model Content

[0005] The purpose of the utility model is to provide a quantitative intubation device for gastric gavage in animal experiments to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a quantitative intubation device for gavage in animal experiments, comprising:

[0007] A cylinder, a connecting pipe is provided on the side of the cylinder, an outer wall of the connecting pipe is threadedly connected with a mounting cylinder, and a cannula is fixedly sleeved on the side of the mounting cylinder;

[0008] The side of the cylinder is provided with a protective mechanism for shielding the cannula from the outside, and the protective mechanism includes:

[0009] A fixing tube and a supporting tube, both of which are located outside the cannula;

[0010] The connecting tube is slidably arranged on the side of the supporting tube, and the fixing tube, the supporting tube and the connecting tube are used to externally shield the cannula.

[0011] Preferably, an annular groove is opened on the side of the connecting tube, and the supporting tube is slidably connected with the inner cavity of the annular groove. The top and bottom ends of the connecting tube are threadedly connected with locking columns, and one end of the locking column is fitted with the outer wall of the supporting tube.

[0012] Preferably, the outer wall of the fixed cylinder is fixedly connected to a fixing frame, a through groove is opened on the side of the fixing frame, a positioning block is slidably provided in the inner cavity of the through groove, the outer wall of the mounting cylinder is fixedly connected to a positioning seat, and the positioning block is slidably and interlacedly connected with the inner cavity of the positioning seat.

[0013] Preferably, the side of the fixing tube is fixedly connected to the supporting tube, the other side of the fixing tube is symmetrically fixedly connected with an assembly column, the side of the installation tube is symmetrically provided with a positioning groove, and the assembly column is slidably inserted into the inner cavity of the positioning groove.

[0014] Preferably, the side of the positioning block is fixedly connected with a connecting rod, the outer wall of the connecting rod is slidably inserted and connected with an auxiliary frame, the auxiliary frame is slidably inserted and connected with the inner cavity of the through groove, the side of the fixing frame is threadedly inserted and connected with a mounting bolt, and one end of the mounting bolt is threadedly inserted and connected with the auxiliary frame.

[0015] Preferably, a spring is sleeved on the outer wall of the connecting rod, one end of the spring is fixedly connected to the positioning block, and the other end of the spring is in contact with the auxiliary frame.

[0016] The technical effects and advantages of this utility model are:

[0017] The utility model utilizes the mutual cooperation of the fixing tube, the supporting tube, the connecting tube, the locking column, the fixing frame, the positioning seat and the positioning block. The fixing tube, the supporting tube and the connecting tube shield the outside of the cannula, and the positioning block limits the relative positions of the fixing frame and the positioning seat, which is beneficial to sealing and protecting the cannula when the cannula is not in use to prevent the cannula from being contaminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 This is a front sectional structural diagram of the connecting tube of the utility model.

[0020] Figure 3 This is a front sectional structural diagram of the fixing frame of the utility model.

[0021] In the figure: 1. Cylinder; 2. Connecting tube; 3. Mounting tube; 4. Insert tube; 5. Protective mechanism; 51. Fixing tube; 52. Supporting tube; 53. Connecting tube; 54. Locking column; 55. Fixing frame; 56. Positioning seat; 57. Positioning block; 58. Auxiliary frame; 59. Connecting rod; 510. Spring; 511. Assembly column. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The utility model provides Figure 1-3 The shown device is a quantitative cannula device for gavage in animal experiments, comprising a barrel 1, which is useful for containing gavage fluid and facilitating the quantitative ejection of the gavage fluid. A connecting tube 2 is provided on the side of the barrel 1, which is useful for connection with the mounting barrel 3 and, in turn, for installing the cannula 4. The outer wall of the connecting tube 2 is threadedly connected with the mounting barrel 3, which is useful for supporting the cannula 4. The side of the mounting barrel 3 is fixedly sleeved with the cannula 4.

[0024] The cam 52 is provided with a plurality of locking cams 52 and a plurality of locking cams 53, and the plurality of locking cams 52 are provided with a plurality of locking cams 53. The plurality of locking cams 52 are provided with a plurality of locking cams 53, and the plurality of locking cams 52 are provided with a plurality of locking cams 53. The relative position of 3 and the supporting tube 52 is limited, which is conducive to limiting the position of the connecting tube 53 to adapt to cannulas 4 of different lengths. One end of the locking column 54 fits into the outer wall of the supporting tube 52, and the outer wall of the fixing tube 51 is fixedly connected to a fixing frame 55. The fixing frame 55 is L-shaped, which is conducive to the sliding of the positioning block 57 thereon, which is conducive to the sliding support of the positioning block 57. A through groove is provided on the side of the fixing frame 55, and a positioning block 57 is slidably provided on the inner cavity of the through groove. The side of the positioning block 57 is provided with an inclined surface, which is conducive to horizontal sliding extrusion with the positioning seat 56, which is convenient for sliding engagement of the fixing tube 51. The positioning block 57 is conducive to defining the relative position of the fixing frame 55 and the positioning seat 56, which is conducive to installation and disassembly of the fixing tube 51. The outer wall of the mounting tube 3 is fixedly connected to the positioning seat 56, and the positioning block 57 is slidably inserted and connected with the inner cavity of the positioning seat 56.

[0025] Specifically, the side of the fixed cylinder 51 is fixedly connected to the supporting cylinder 52, and the other side of the fixed cylinder 51 is symmetrically fixedly connected with the assembly column 511, which is conducive to positioning the installation of the fixed cylinder 51 and preventing the fixed cylinder 51 from rotating at will. The side of the installation cylinder 3 is symmetrically provided with a positioning groove, and the assembly column 511 is slidably connected with the inner cavity of the positioning groove. The side of the positioning block 57 is fixedly connected with a connecting rod 59, which is conducive to pulling the positioning block 57 for movement and facilitating the pulling operation of the positioning block 57. The outer wall of the connecting rod 59 is slidably connected with the auxiliary frame 5 8, which is conducive to vertically guiding the sliding of the connecting rod 59. The auxiliary frame 58 is slidably inserted and connected with the inner cavity of the through groove. The side thread of the fixing frame 55 is inserted and connected with a mounting bolt. One end of the mounting bolt is threaded and inserted and connected with the auxiliary frame 58. The outer wall of the connecting rod 59 is provided with a spring 510, which is conducive to pushing the positioning block 57 to move, so that the positioning block 57 can be restored to its original position after movement, and it is convenient to repeat the operation of the positioning block 57. One end of the spring 510 is fixedly connected to the positioning block 57, and the other end of the spring 510 is in contact with the auxiliary frame 58.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A quantitative intubation device for gavage in animal experiments, comprising: A cylinder (1), a connecting pipe (2) is provided on the side of the cylinder (1), a mounting cylinder (3) is threadedly inserted and connected to the outer wall of the connecting pipe (2), and a cannula (4) is fixedly sleeved on the side of the mounting cylinder (3); It is characterized in that a protective mechanism (5) for externally shielding the cannula (4) is provided on the side of the barrel (1), and the protective mechanism (5) comprises: A fixing cylinder (51) and a supporting cylinder (52), wherein the fixing cylinder (51) and the supporting cylinder (52) are both located outside the cannula (4); The connecting tube (53) is slidably arranged on the side of the supporting tube (52); the fixing tube (51), the supporting tube (52) and the connecting tube (53) are used to shield the cannula (4) from the outside.

2. The quantitative intubation device for animal experiment gavage according to claim 1, characterized in that: An annular groove is provided on the side of the connecting tube (53), and the supporting tube (52) is slidably connected to the inner cavity of the annular groove. The top and bottom ends of the connecting tube (53) are both threadedly connected with a locking column (54), and one end of the locking column (54) is in contact with the outer wall of the supporting tube (52).

3. The quantitative intubation device for animal experiment gastric gavage according to claim 1, characterized in that: The outer wall of the fixed cylinder (51) is fixedly connected to a fixing frame (55), a through slot is provided on the side of the fixing frame (55), a positioning block (57) is slidably provided in the inner cavity of the through slot, and the outer wall of the mounting cylinder (3) is fixedly connected to a positioning seat (56), and the positioning block (57) is slidably connected to the inner cavity of the positioning seat (56).

4. The quantitative intubation device for animal experiment gastric gavage according to claim 1, characterized in that: The side of the fixing cylinder (51) is fixedly connected to the supporting cylinder (52), and the other side of the fixing cylinder (51) is symmetrically fixedly connected with an assembly column (511). The side of the installation cylinder (3) is symmetrically provided with a positioning groove, and the assembly column (511) is slidably inserted into the inner cavity of the positioning groove.

5. The quantitative intubation device for animal experiment gastric gavage according to claim 3, characterized in that: The side of the positioning block (57) is fixedly connected to a connecting rod (59), the outer wall of the connecting rod (59) is slidably connected to an auxiliary frame (58), the auxiliary frame (58) is slidably connected to the inner cavity of the through slot, and the side of the fixing frame (55) is threadedly connected to a mounting bolt, one end of the mounting bolt is threadedly connected to the auxiliary frame (58).

6. The quantitative intubation device for animal experiment gastric gavage according to claim 5, characterized in that: The outer wall of the connecting rod (59) is sleeved with a spring (510), one end of the spring (510) is fixedly connected to the positioning block (57), and the other end of the spring (510) is in contact with the auxiliary frame (58).

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