Simple and practical mouse alveolar lavage needle

Abstract

The utility model discloses a simple and practical mouse alveolar lavage needle which comprises a flexible lavage needle. The stainless steel injection needle is inserted into the flexible lavage needle, and the flat end of the stainless steel injection needle extends out of the flexible lavage needle; the butt joint assembly comprises a butt joint son head and a butt joint mother head, the butt joint son head is inserted into one end of the butt joint mother head, a positioning assembly is installed on the butt joint son head, and the butt joint mother head is fixedly connected to the end, extending out of the flexible lavage needle, of the stainless steel lavage needle; the connecting plug is mounted at one end of the flexible lavage needle; the butt joint sub-head is symmetrically and fixedly connected with hand-held pieces. The needle tip part of the stainless steel injection needle is positioned in the flexible lavage needle when the flexible lavage needle is inserted into the trachea, so that the trachea can be prevented from being damaged, and the risks that the experiment fails, the quality of the lavage fluid is low and the experiment requirement cannot be met due to the fact that the trachea is punctured or the lavage fluid leaks are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a simple and practical mouse alveolar lavage needle. Background Art

[0002] Animal experiments are indispensable for scientific researchers engaged in research on respiratory diseases such as asthma, chronic obstructive pulmonary disease, and pulmonary fibrosis. In order to evaluate the relevant indicators of animal models, it is often necessary to obtain alveolar lavage fluid from experimental animals. The commonly used experimental technique is to expose the trachea, take a stainless steel alveolar lavage needle, connect it to a syringe with lavage fluid, and use the sharp needle tip of the lavage needle to insert it into the trachea. Then, during the entire operation, the lavage needle is held in place with one hand by the operator, and the other hand holds the syringe to inject and recover the lavage fluid, which is repeated three times.

[0003] Currently, conventional alveolar lavage needles are made of stainless steel with a hard needle tip. The operator relies on one hand to maintain the position throughout the entire operation, and the other hand to hold the syringe to inject and recover the lavage fluid. Any slight shaking or displacement can easily cause the tracheal wall to be punctured or the alveolar lavage needle to come out, causing the alveolar lavage fluid to leak and contaminate, leading to operation failure. In addition, alveolar lavage generally requires repeated injection and withdrawal three times, which increases the difficulty of the operation and the technical ability requirements for the operator.

[0004] Based on the above reasons, the present invention provides a simple and practical mouse alveolar lavage needle. Utility Model Content

[0005] The utility model aims to provide a simple and practical mouse alveolar lavage needle to solve the problems existing in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following scheme: The utility model provides a simple and practical mouse alveolar lavage needle, comprising:

[0007] Flexible irrigation needle;

[0008] A stainless steel injection needle, the stainless steel injection needle is inserted into the flexible irrigation needle, and the flat end of the stainless steel injection needle extends out of the flexible irrigation needle, and the flexible irrigation needle is coaxially arranged with the stainless steel injection needle;

[0009] A docking assembly, the docking assembly comprises a docking sub-head and a docking female head, the docking sub-head is plugged into one end of the docking female head, a positioning assembly is installed on the docking sub-head, the positioning assembly is used to control the plugging depth of the docking sub-head, and the docking female head is fixedly connected to one end of the stainless steel irrigation needle extending out of the flexible irrigation needle;

[0010] A plug connector, the plug connector is installed at one end of the flexible irrigation needle, and the flexible irrigation needle is detachably connected to an end of the docking sub-head away from the docking female head through the plug connector;

[0011] Wherein, a hand piece is symmetrically fixedly connected to the docking head.

[0012] According to the simple and practical mouse alveolar lavage needle provided by the utility model, the positioning component includes a positioning block fixedly connected to the end of the docking sub-head close to the docking female head, and the end of the docking female head close to the docking sub-head is provided with a first positioning groove and a second positioning groove, and a gap is arranged between the first positioning groove and the second positioning groove, and the first positioning groove and the positioning groove are both arranged corresponding to the positioning block, and the depth of the first positioning groove is less than the depth of the second positioning groove.

[0013] According to the simple and practical mouse alveolar lavage needle provided by the utility model, the plug connector includes a plug-in head and a plug-in female head, the plug-in head is fixedly connected to one end of the flexible lavage needle, the plug-in female head is fixedly connected to an end of the docking sub-head away from the docking female head, the docking sub-head is plugged into the docking female head, and one end of the docking sub-head abuts against the end of the plug-in head.

[0014] According to the simple and practical mouse alveolar lavage needle provided by the utility model, the length of the plug-in head is 6mm-8mm, and the outer wall of the plug-in head is set to be a frosted surface.

[0015] According to the simple and practical mouse alveolar lavage needle provided by the utility model, the difference between the depth of the first positioning groove and the depth of the second positioning groove is 2.5mm-3mm.

[0016] According to the simple and practical mouse alveolar lavage needle provided by the utility model, the handpiece includes a butterfly-shaped hard plastic handle, and the butterfly-shaped hard plastic handle is provided in two groups. The two groups of butterfly-shaped hard plastic handles are symmetrically fixedly connected to the outer wall of the docking head.

[0017] According to the simple and practical mouse alveolar lavage needle provided by the utility model, the inner diameter of the docking sub-head is 2.5 mm, and the outer diameter of the docking sub-head is 3.5 mm.

[0018] The utility model discloses the following technical effects:

[0019] When the utility model is working, if tracheal intubation has been performed before alveolar lavage, the stainless steel injection needle and the flexible lavage needle are plugged and fixed by using a docking male head and a docking female head, and the plugging depth is positioned by using a positioning component to ensure that the stainless steel injection needle is located in the flexible lavage needle, and the flexible lavage needle is inserted into the trachea through the tracheal notch caused by the previous experiment, the stainless steel needle tube is pulled out, the trachea and the flexible lavage needle are fixed by using cotton thread, and then alveolar lavage is performed; if tracheal intubation has not been performed, the plugging depth is positioned by using a positioning component, so that the needle tip part of the stainless steel injection needle is located outside the flexible lavage needle, and after a small notch is punctured in the trachea, the stainless steel injection needle is withdrawn into the flexible lavage needle and positioned by using the positioning component, and then the flexible lavage needle is inserted into the trachea and fixed by using cotton thread, and then the stainless steel injection needle is pulled out and then alveolar lavage is performed.

[0020] The stainless steel injection needle of the utility model can provide a certain supporting force for the flexible lavage needle during the intubation process, thereby ensuring that the flexible lavage needle can be smoothly inserted into the trachea. At the same time, since the needle tip part of the stainless steel injection needle is located inside the flexible lavage needle during the process of the flexible lavage needle being inserted into the trachea, damage to the trachea can be avoided, and the risk of experimental failure, poor lavage fluid quality, and failure to meet experimental needs due to tracheal puncture or lavage fluid leakage can be reduced. In addition, the utility model has low cost and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the structure of a simple and practical mouse alveolar lavage needle of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the flexible irrigation needle of the utility model;

[0024] Figure 3 It is a schematic diagram of the structure of the stainless steel injection needle of the utility model.

[0025] Among them, 1. Flexible irrigation needle; 2. Stainless steel injection needle; 3. Docking sub-head; 4. Docking female head; 5. Positioning block; 6. First positioning groove; 7. Second positioning groove; 8. Plug-in sub-head; 9. Plug-in female head; 10. Butterfly-shaped hard plastic handle. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] Reference Figure 1-3 The utility model provides a simple and practical mouse alveolar lavage needle, comprising:

[0029] Flexible irrigation needle 1; the flexible irrigation needle 1 adopts a hollow plastic silicone hose, and other parts except the flexible irrigation needle 1 and the stainless steel injection needle 2 are all made of hard plastic, which reduces the manufacturing cost of the device;

[0030] A stainless steel injection needle 2 is inserted into the flexible irrigation needle 1, and the flat end of the stainless steel injection needle 2 extends out of the flexible irrigation needle 1, and the flexible irrigation needle 1 and the stainless steel injection needle 2 are coaxially arranged; the flat end of the stainless steel injection needle 2 is fixedly connected with a plastic pull head;

[0031] The docking assembly includes a docking sub-head 3 and a docking female head 4. The docking sub-head 3 is plugged into one end of the docking female head 4. A positioning assembly is installed on the docking sub-head 3. The positioning assembly is used to control the plugging depth of the docking sub-head 3. The docking female head 4 is fixedly connected to one end of the stainless steel irrigation needle extending out of the flexible irrigation needle 1;

[0032] A plug connector, which is installed at one end of the flexible irrigation needle 1. The flexible irrigation needle 1 is detachably connected to the end of the docking sub-head 3 away from the docking female head 4 through the plug connector;

[0033] Wherein, a hand piece is symmetrically fixedly connected to the docking head 3 .

[0034] When the utility model is working, if endotracheal intubation has been performed before alveolar lavage, the stainless steel injection needle 2 and the flexible lavage needle 1 are plugged and fixed by using the docking sub-head 3 and the docking female head 4, and the plugging depth is positioned by using the positioning component to ensure that the stainless steel injection needle 2 is located in the flexible lavage needle 1, and the flexible lavage needle 1 is inserted into the trachea through the tracheal notch caused by the previous experiment, the stainless steel needle tube is pulled out, and the trachea and the flexible lavage needle 1 are fixed by cotton thread, and then alveolar lavage is performed; if endotracheal intubation has not been performed, the plugging depth is positioned by using the positioning component, so that the needle tip part of the stainless steel injection needle 2 is located outside the flexible lavage needle 1, and after a small notch is punctured in the trachea, the stainless steel injection needle 2 is withdrawn into the flexible lavage needle 1 and positioned by using the positioning component, and then the flexible lavage needle 1 is inserted into the trachea and fixed by using cotton thread, and then the stainless steel injection needle 2 is pulled out and then alveolar lavage is performed.

[0035] The stainless steel injection needle 2 of the utility model can provide a certain supporting force for the flexible lavage needle 1 during the intubation process, ensuring that the flexible lavage needle 1 can be smoothly inserted into the trachea. At the same time, since the needle tip part of the stainless steel injection needle 2 is located inside the flexible lavage needle 1 during the process of the flexible lavage needle 1 being inserted into the trachea, damage to the trachea can be avoided, reducing the risk of experimental failure due to puncturing the trachea or leakage of lavage fluid, low quality of lavage fluid, and failure to meet experimental needs. In addition, the utility model has low cost and is suitable for promotion.

[0036] A further optimized solution is that the positioning assembly includes a positioning block 5 fixedly connected to the end of the docking sub-head 3 close to the docking female head 4, and the end of the docking female head 4 close to the docking sub-head 3 is provided with a first positioning groove 6 and a second positioning groove 7, and a gap is provided between the first positioning groove 6 and the second positioning groove 7. The first positioning groove 6 and the positioning groove are both arranged corresponding to the positioning block 5, and the depth of the first positioning groove 6 is less than the depth of the second positioning groove 7.

[0037] A further optimized solution is that the plug connector includes a plug-in head 8 and a plug-in female head 9. The plug-in head 8 is fixedly connected to one end of the flexible irrigation needle 1, and the plug-in female head 9 is fixedly connected to the end of the docking sub-head 3 away from the docking female head 4. The docking sub-head 3 is plugged into the docking female head 4, and one end of the docking sub-head 3 abuts against the end of the plug-in head 8.

[0038] Further optimization scheme, the length of the plug head 8 is 6mm-8mm, and the outer wall of the plug head 8 is set to be frosted. Through the cooperation of the plug head 8 and the plug female head 9, the flexible irrigation needle 1 and the docking female head 4 can be disassembled, so that the flexible irrigation needle 1 can be replaced.

[0039] Further optimization scheme, the difference between the depth of the first positioning groove 6 and the depth of the second positioning groove 7 is 2.5mm-3mm. In this embodiment, the plug-in head 8 is docked with the plug-in female head 9. When the positioning block 5 on the plug-in head 8 is docked with the first positioning groove 6, the tip of the stainless steel injection needle 2 is located in the flexible irrigation needle 1. When the positioning block 5 is docked with the second positioning groove 7, the needle tip of the stainless steel injection needle 2 extends out of the flexible irrigation needle by 12mm.

[0040] According to a further optimized solution, the handpiece includes a butterfly-shaped hard plastic handle 10 , and two groups of butterfly-shaped hard plastic handles 10 are provided. The two groups of butterfly-shaped hard plastic handles 10 are symmetrically fixedly connected to the outer wall of the docking head 3 .

[0041] According to a further optimized solution, the inner diameter of the docking sub-head 3 is 2.5 mm, and the outer diameter of the docking sub-head 3 is 3.5 mm.

[0042] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A simple and practical mouse alveolar lavage needle, characterized in that: include: Flexible irrigation needle (1); A stainless steel injection needle (2), the stainless steel injection needle (2) is inserted into the flexible irrigation needle (1), and the flat end of the stainless steel injection needle (2) extends out of the flexible irrigation needle (1), and the flexible irrigation needle (1) and the stainless steel injection needle (2) are coaxially arranged; A docking assembly, the docking assembly comprising a docking sub-head (3) and a docking female head (4), the docking sub-head (3) being plugged into one end of the docking female head (4), a positioning assembly being installed on the docking sub-head (3), the positioning assembly being used to control the plugging depth of the docking sub-head (3), the docking female head (4) being fixedly connected to one end of the stainless steel irrigation needle extending out of the flexible irrigation needle (1); A plug connector, the plug connector being mounted on one end of the flexible irrigation needle (1), and the flexible irrigation needle (1) being detachably connected to one end of the docking sub-head (3) away from the docking female head (4) via the plug connector; Wherein, a hand piece is symmetrically fixedly connected to the docking sub-head (3).

2. A simple and practical mouse alveolar lavage needle according to claim 1, characterized in that: The positioning assembly comprises a positioning block (5) fixedly connected to one end of the docking sub-head (3) close to the docking female head (4); the docking female head (4) is provided with a first positioning groove (6) and a second positioning groove (7) at one end close to the docking sub-head (3); a gap is provided between the first positioning groove (6) and the second positioning groove (7); the first positioning groove (6) and the positioning groove are both provided corresponding to the positioning block (5); and the depth of the first positioning groove (6) is less than the depth of the second positioning groove (7).

3. A simple and practical mouse alveolar lavage needle according to claim 1, characterized in that: The plug connector comprises a plug sub-head (8) and a plug female head (9); the plug sub-head (8) is fixedly connected to one end of the flexible irrigation needle (1); the plug female head (9) is fixedly connected to one end of the docking sub-head (3) away from the docking female head (4); the docking sub-head (3) is plugged into the docking female head (4), and one end of the docking sub-head (3) abuts against the end of the plug sub-head (8).

4. A simple and practical mouse alveolar lavage needle according to claim 3, characterized in that: The length of the plug-in sub-head (8) is 6 mm-8 mm, and the outer wall of the plug-in sub-head (8) is configured as a frosted surface.

5. A simple and practical mouse alveolar lavage needle according to claim 2, characterized in that: The difference between the depth of the first positioning groove (6) and the depth of the second positioning groove (7) is 2.5 mm to 3 mm.

6. A simple and practical mouse alveolar lavage needle according to claim 1, characterized in that: The hand piece comprises a butterfly-shaped hard plastic handle (10), and two groups of the butterfly-shaped hard plastic handle (10) are provided. The two groups of the butterfly-shaped hard plastic handle (10) are symmetrically fixedly connected to the outer wall of the docking head (3).

7. A simple and practical mouse alveolar lavage needle according to claim 1, characterized in that: The inner diameter of the docking sub-head (3) is 2.5 mm, and the outer diameter of the docking sub-head (3) is 3.5 mm.

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