Mouse eye socket blood sampling device

Abstract

The utility model discloses a mouse orbital blood sampling device which comprises a blood sampling needle and a needle inserting anti-skid sleeve arranged on the outer portion, close to the bottom end, of the blood sampling needle, anti-skid lines are densely distributed on the outer wall of the needle inserting anti-skid sleeve and used for increasing friction force between the needle inserting anti-skid sleeve and the skin, the blood sampling needle is hollow, and the inner wall and a needle tip at the top end are smooth and free of burrs. A novel pricking needle limiting device is additionally arranged outside a blood taking needle of the mouse eye socket blood taking device, the blood taking needle is elastically sleeved with the pricking needle limiting device, meanwhile, the device can move up and down outside the blood taking needle after being pulled outwards, and the pricking depth of the blood taking needle can be limited through the pricking needle limiting device; the situation that the blood taking needle is inserted too deep when a researcher pricks the blood taking needle to the eye socket of a mouse for blood taking is avoided, and after the blood taking needle pricks the person to the safe depth, the needle pricking limiting device can prevent the blood taking needle from going deep continuously, so that the situation that the mouse moves disorderly or is directly and excessively injured due to the fact that the blood taking needle pricks the person too deep can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field related to blood collection needles, and in particular relates to a mouse orbital blood collection device. Background Art

[0002] The mouse orbital blood collection device is a device used to collect blood from the mouse orbit. It mainly consists of a blood collection needle and an associated fixture. The blood collection needle is inserted into the mouse orbital skin to obtain a blood sample. The main advantage of using the orbital blood collection method is that the blood collection process is relatively simple and does not cause too much stress and pain. The orbital blood content is relatively high and is suitable for many experimental and research purposes, such as drug metabolism, drug toxicity, and gene expression.

[0003] However, the mouse orbital blood collection device mainly aims the blood collection needle at the mouse orbit and accurately inserts it into the orbital skin. At this time, the blood in the mouse orbit will be collected through the blood collection needle, but when the blood collection needle is inserted into the mouse orbital skin, it is completely manually operated by the experimenter. Therefore, if too much force is used when inserting the blood collection needle, the insertion depth of the blood collection needle will be too deep, and if the blood collection needle is inserted too deep, it will easily damage the tissue near the mouse orbit. Utility Model Content

[0004] The utility model aims to provide a mouse orbital blood sampling device to solve the problem raised in the above-mentioned background technology that when inserting a blood collection needle into the mouse orbital skin, it is completely dependent on manual operation by the experimenter, so if too much force is used when inserting the blood collection needle, the insertion depth of the blood collection needle will be too deep.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mouse orbital blood collection device, comprising a blood collection needle and a needle puncture anti-slip cover arranged on the outside of the blood collection needle near the bottom end, and the outer wall of the needle puncture anti-slip cover is densely covered with anti-slip patterns to increase the friction between the skin, the blood collection needle is hollow inside, and the inner wall and the top needle tip are smooth and free of burrs, a delivery hose is arranged on the outside of the bottom end of the blood collection needle, and a needle puncture limiting device is arranged on the upper side of the center of the blood collection needle;

[0006] The needle puncture limiting device includes a soft silicone shrink sleeve, a limiting sleeve and a protective baffle. The limiting sleeve is arranged on the top of the soft silicone shrink sleeve, and the limiting sleeve and the soft silicone shrink sleeve are fixedly connected by an adhesive. The limiting sleeve and the soft silicone shrink sleeve are both sleeved on the outside of the blood collection needle, and protective baffles are arranged on the outer walls of the left and right ends of the rearmost side of the limiting sleeve.

[0007] Preferably, the soft silicone shrink sleeve and the limiting sleeve are both made of silicone, but the softness and elasticity coefficient of the soft silicone shrink sleeve are greater than those of the limiting sleeve, and the inner wall of the soft silicone shrink sleeve is densely covered with anti-slip patterns.

[0008] Preferably, the needle-puncture limiting device further comprises a pulling head, which is fixed to the front bottom of the soft silicone shrink sleeve, and the soft silicone shrink sleeve can be expanded outwards when the pulling head is pulled forward.

[0009] Preferably, a connecting plug is provided at the bottom of the delivery hose, and a vacuum storage cylinder is connected to the bottom of the connecting plug.

[0010] Preferably, the vacuum storage cylinder is connected to the interior of the blood collection needle through a delivery hose, and the delivery hose can be bent at any angle.

[0011] Compared with the prior art, the utility model provides a mouse orbital blood sampling device having the following features:

[0012] Beneficial effects:

[0013] The utility model adds a novel needle-insertion limiting device to the outside of the blood collection needle of the mouse orbital blood collection device, and the needle-insertion limiting device is elastically sleeved on the outside of the blood collection needle. At the same time, after the device is pulled outward, it can move up and down on the outside of the blood collection needle. The needle-insertion limiting device can limit the insertion depth of the blood collection needle, thereby preventing the situation where the blood collection needle is inserted too deeply into the mouse orbit when researchers insert the blood collection needle into the mouse orbit for blood collection. After the blood collection needle is inserted to a safe depth, the needle-insertion limiting device can prevent the blood collection needle from continuing to penetrate deeper, thereby preventing the mouse from moving around or directly causing excessive damage to the mouse due to the excessive insertion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a three-dimensional structural schematic diagram of a mouse orbital blood sampling device.

[0015] Figure 2 The utility model is a schematic diagram of the planar structure of a mouse orbital blood sampling device.

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the needle-stick limiting device of the present utility model.

[0017] In the figure: 1. Vacuum storage cylinder; 2. Connecting plug; 3. Delivery hose; 4. Blood collection needle; 5. Anti-slip sleeve for needle puncture; 6. Needle puncture limiting device; 7. Pull head; 8. Soft silicone shrink sleeve; 9. Limiting sleeve; 10. Protective baffle. DETAILED DESCRIPTION

[0018] 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.

[0019] The utility model provides Figure 1-3 The device for collecting blood from the eye socket of a mouse is shown, comprising a blood collection needle 4 and a needle puncture anti-skid cover 5 arranged on the outside of the blood collection needle 4 near the bottom end, and the outer wall of the needle puncture anti-skid cover 5 is densely covered with anti-skid patterns for increasing the friction between the blood collection needle 4 and the skin. The inside of the blood collection needle 4 is hollow, and the inner wall and the top needle tip are smooth and free of burrs. A delivery hose 3 is arranged on the outside of the bottom end of the blood collection needle 4, and a needle puncture limiting device 6 is arranged on the outside of the upper side of the center of the blood collection needle 4. A connecting plug 2 is arranged at the bottom of the delivery hose 3, and a vacuum storage cylinder 1 is connected to the bottom of the connecting plug 2. The vacuum storage cylinder 1 is connected to the inside of the blood collection needle 4 through the delivery hose 3, and the delivery hose 3 can be bent at any angle. When using the mouse When the orbital blood sampling device is used to collect blood samples from the mouse orbit, it is first necessary to determine the mouse orbital blood sampling point, and then the experimenter needs to pinch the anti-slip sleeve 5 on the outside of the blood collection needle 4 with his fingers, and aim the needle tip of the blood collection needle 4 at the mouse orbit and pierce it. After piercing the mouse orbit, the blood collection needle 4 needs to be rotated, and the connecting plug 2 at the bottom of the delivery hose 3 is inserted into the top of the vacuum storage cylinder 1. At this time, the vacuum storage cylinder 1 will generate negative pressure, and the negative pressure will cause the blood collection needle 4 to transport the blood in the mouse orbit through the delivery hose 3 to the vacuum storage cylinder 1 for storage. After the blood collection is completed, the blood collection needle 4 needs to be quickly pulled out, and the bleeding at the blood collection site can be stopped.

[0020] like Figure 1 , Figure 2 and Figure 3As shown, the needle-stick limiting device 6 includes a soft silicone shrink sleeve 8, a limiting sleeve 9 and a protective baffle 10. The limiting sleeve 9 is arranged on the top of the soft silicone shrink sleeve 8, and the limiting sleeve 9 and the soft silicone shrink sleeve 8 are fixedly connected by an adhesive. The limiting sleeve 9 and the soft silicone shrink sleeve 8 are both sleeved on the outside of the blood collection needle 4. Protective baffles 10 are arranged on the outer walls of the left and right ends of the rear side of the limiting sleeve 9. The soft silicone shrink sleeve 8 and the limiting sleeve 9 are both made of silicone, but the soft silicone shrink sleeve 8 has a softness and elasticity coefficient greater than that of the limiting sleeve 9, and the inner wall of the soft silicone shrink sleeve 8 is densely covered with anti-slip patterns. The needle-stick limiting device 6 also includes a pulling head 7, which is fixed on the soft silicone shrink sleeve. The front end bottom of the shrink sleeve 8, and the soft silicone shrink sleeve 8 can be expanded outward after the pulling head 7 is pulled forward. However, when the needle limiting device 6 is needed to limit the insertion depth of the blood collection needle 4, it is necessary to grasp the pulling head 7 and pull it forward, so that the soft silicone shrink sleeve 8 outside the blood collection needle 4 will be pulled and expanded, and then move up and down until the distance between the top of the limiting sleeve 9 and the needle tip is the same as the insertion depth. Then the blood collection needle 4 can be normally inserted into the mouse orbital skin through the needle tip. When the insertion depth reaches the required depth, the limiting sleeve 9 and the protective baffle 10 will prevent the blood collection needle 4 from continuing to penetrate into the mouse orbital skin, thereby achieving the purpose of limiting the needle insertion depth.

[0021] 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 substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mouse orbital blood sampling device, comprising a blood collection needle (4) and a needle puncture anti-slip sleeve (5) arranged outside the bottom end of the blood collection needle (4), and the outer wall of the needle puncture anti-slip sleeve (5) is densely covered with anti-slip patterns to increase the friction between the blood collection needle (4) and the skin, the blood collection needle (4) is hollow inside and the inner wall and the top needle tip are smooth and free of burrs, and a delivery hose (3) is arranged outside the bottom end of the blood collection needle (4), characterized in that: A needle-stick limiting device (6) is arranged on the upper outer side of the center of the blood collection needle (4); The needle-puncture limiting device (6) comprises a soft silicone shrink sleeve (8), a limiting sleeve (9) and a protective baffle (10); the limiting sleeve (9) is arranged on the top of the soft silicone shrink sleeve (8), and the limiting sleeve (9) and the soft silicone shrink sleeve (8) are fixedly connected by an adhesive; the limiting sleeve (9) and the soft silicone shrink sleeve (8) are both sleeved on the outside of the blood collection needle (4); and the protective baffles (10) are arranged on the outer walls of the left and right ends of the rearmost side of the limiting sleeve (9).

2. A mouse orbital blood sampling device according to claim 1, characterized in that: The soft silicone shrink sleeve (8) and the limiting sleeve (9) are both made of silicone, but the soft silicone shrink sleeve (8) has a softness and elasticity coefficient greater than that of the limiting sleeve (9), and the inner wall of the soft silicone shrink sleeve (8) is densely covered with anti-slip patterns.

3. A mouse orbital blood sampling device according to claim 2, characterized in that: The needle-puncture limiting device (6) further comprises a pulling head (7), wherein the pulling head (7) is fixed to the front bottom of the soft silicone shrink sleeve (8), and the soft silicone shrink sleeve (8) can be expanded outwards when the pulling head (7) is pulled forwards.

4. A mouse orbital blood sampling device according to claim 1, characterized in that: A connecting plug (2) is provided at the bottom of the delivery hose (3), and a vacuum storage cylinder (1) is connected to the bottom of the connecting plug (2).

5. A mouse orbital blood sampling device according to claim 4, characterized in that: The vacuum storage cylinder (1) is connected to the interior of the blood collection needle (4) via a delivery hose (3), and the delivery hose (3) can be bent at any angle.

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