技术领域technical field
本发明涉及一种科学实验仪器设备，特别涉及一种实验动物心脏采血针。The invention relates to a scientific experiment equipment, in particular to a heart blood collection needle for experimental animals.
背景技术Background technique
在对动物研究的实验过程中，通常采用采血针的方式对实验的动物采血，进行血清检验，用于实验分析。现有技术中采血方式大致分为以下几种：1、从实验动物的眼睛采血，可采取的血量足，但容易导致动物死亡；2、从实验动物的尾静脉采血，可采取的血量少，采血效率相对较低；3、从实验动物的心脏采血，可采取的血量足，但对采血装置要求较高。In the experimental process of animal research, the blood of the experimental animals is usually collected by means of blood collection needles, and serum tests are carried out for experimental analysis. In the prior art, blood collection methods are roughly divided into the following types: 1. Blood collection from the eyes of experimental animals can take enough blood, but it is easy to cause animal death; 2. Blood collection from the tail vein of experimental animals can take a large amount of blood. 3. The amount of blood that can be collected from the heart of experimental animals is sufficient, but the requirements for blood collection devices are relatively high.
为了有利于后续实验研究的进行，往往采用对动物心脏进行采血，采血后的实验动物需继续存活。然而现有的采血针的针头为尖的，心脏部位较薄弱，尖针容易对动物造成较大二次伤害，致死率高；与此同时，由于实验动物的大小不同，心脏处于皮下的位置也不同，难以控制针插入的深度。In order to facilitate the follow-up experimental research, blood is often collected from the heart of the animal, and the experimental animal must continue to survive after the blood collection. However, the needles of the existing blood collection needles are pointed, and the heart is relatively weak. The sharp needles are likely to cause greater secondary damage to the animal, and the lethality is high. Different, it is difficult to control the depth of needle insertion.
可见，设计一种减少对实验动物造成伤害的针头且能准确控制插入深度的动物心脏采血针是业界迫切需要的。It can be seen that there is an urgent need in the industry to design a needle that reduces the damage to experimental animals and can accurately control the insertion depth of the animal heart blood collection needle.
发明内容Contents of the invention
本发明所要解决的技术问题是提供一种实验动物心脏采血针，对不同的实验动物心脏处的采血都能够保证采血点的精准性，有效的减少采血针造成的伤害，很大程度上降低了致死率。The technical problem to be solved by the present invention is to provide a heart blood collection needle for experimental animals, which can ensure the accuracy of the blood collection point for different experimental animal hearts, effectively reduce the damage caused by the blood collection needle, and greatly reduce the fatality rate.
解决上述技术问题，本发明采用如下技术方案：To solve the above technical problems, the present invention adopts the following technical solutions:
实验动物心脏采血针，包括针头，所述针头主要由细长管状的针梗、针梗前端的针尖和针梗后端的针栓构成，所述针尖呈平圆状，所述针梗的管壁上设有用于限制针头进给深度的限位装置。A heart blood collection needle for experimental animals, including a needle head, which is mainly composed of a slender tubular needle barrel, a needle point at the front end of the needle barrel, and a pin plug at the rear end of the needle barrel. The needle point is flat and round, and the tube wall of the needle barrel There is a limit device for limiting the depth of needle feed.
上述方案中，所述限位装置为在针梗的侧壁上环形开设有凸台或凹槽，所述凸台或凹槽套设有相适配的医用硅胶圈。In the above solution, the limiting device is a boss or a groove ring-shaped on the side wall of the needle barrel, and the boss or groove is covered with a matching medical silicone ring.
作为上述方案的进一步改进，所述限位装置至少为2个，且该限位装置沿针梗的轴向方向呈前、后间隔设置。As a further improvement of the above solution, there are at least two limiting devices, and the limiting devices are arranged at intervals from front to back along the axial direction of the needle barrel.
作为上述方案的进一步改进，所述每个限位装置的径向半径由前往后依次增大。As a further improvement of the above solution, the radial radius of each limiting device increases sequentially from front to back.
上述方案中，所述针梗为不锈钢材料制成。In the above solution, the needle barrel is made of stainless steel.
与现有技术相比，本发明的有益效果在于：Compared with prior art, the beneficial effect of the present invention is:
1、本发明的实验动物心脏采血针采用了平圆设计的针头，能减少针头对实验动物所造成的伤害，有效降低了动物实验体的致死率；1. The heart blood collection needle for experimental animals of the present invention adopts a needle head with a flat and round design, which can reduce the damage caused by the needle head to the experimental animal, and effectively reduce the lethality of the experimental animal body;
2、在针梗的侧壁上开设的凸台或凹槽可以控制采血针的进给深度，对不同的动物实验体都能保证采血点的精准性；2. The boss or groove set on the side wall of the needle barrel can control the feeding depth of the blood collection needle, and can ensure the accuracy of the blood collection point for different animal experiments;
3、在凸台或凹槽外套有医用硅胶圈，可以防止在采血时的液体外流。3. There is a medical silicone ring on the boss or groove, which can prevent the liquid from flowing out during blood collection.
附图说明Description of drawings
图1为本发明的结构示意图；Fig. 1 is a structural representation of the present invention;
图2为本发明的针梗侧壁面凸台结构示意图；Fig. 2 is a schematic diagram of the boss structure on the side wall of the needle barrel of the present invention;
图3为本发明的针梗侧壁面凹槽结构示意图。Fig. 3 is a schematic diagram of the groove structure on the side wall of the needle barrel of the present invention.
其中，附图标记分别为：1、针梗；2、针尖；3、针栓；4、凸台；5、凹槽；6、硅胶圈。Wherein, the reference signs are respectively: 1. needle stem; 2. needle point; 3. needle pin; 4. boss; 5. groove; 6. silicone ring.
具体实施方式Detailed ways
本发明一种实验动物心脏采血针，包括针头，所述针头主要由细长管状的针梗1、针梗1前端的针尖2和针梗1后端的针栓3构成，所述针梗1为不锈钢材料制成，所述针尖2呈平圆状，有效的减少针尖2造成的伤害；所述针梗1的管壁上设有用于限制针头进给深度的限位装置，所述限位装置为在针梗1的侧壁上环形开设有凸台4或凹槽5，用于限制针梗的插入深度；与此同时，在凸台4或者凹槽5外套设有相适配的医用硅胶圈6，可以有效的防止采血过程中液体的外流，如图1、图2和图3所示。The present invention is a heart blood collection needle for experimental animals, comprising a needle head, the needle head is mainly composed of a long and thin tubular needle barrel 1, a needle tip 2 at the front end of the needle barrel 1, and a needle plug 3 at the rear end of the needle barrel 1, and the needle barrel 1 is Made of stainless steel, the needle point 2 is flat and round, which can effectively reduce the damage caused by the needle point 2; the tube wall of the needle barrel 1 is provided with a limit device for limiting the depth of the needle feed, and the limit device A boss 4 or a groove 5 is circularly opened on the side wall of the needle barrel 1 to limit the insertion depth of the needle barrel; at the same time, a matching medical silica gel is provided on the boss 4 or the groove 5 Circle 6 can effectively prevent the outflow of liquid during blood collection, as shown in Fig. 1 , Fig. 2 and Fig. 3 .
其中，所述限位装置至少为2个，且该限位装置沿针梗1的轴向方向呈前、后间隔设置，可针对多种实验动物体使用，使本发明的采血针适用面更广；进一步的，所述每个限位装置的径向直径由前往后依次增大，使用时，易于掌控对不同的实验动物体心脏采血点的深度，使得操作者更加精确。Wherein, there are at least two limiting devices, and the limiting devices are arranged in front and rear intervals along the axial direction of the needle barrel 1, and can be used for various experimental animals, making the blood collection needle of the present invention more applicable. Further, the radial diameter of each limiting device increases sequentially from the front to the back. When in use, it is easy to control the depth of the heart blood collection point for different experimental animals, making the operator more precise.
当然，上面只是结合附图对本发明优选的具体实施方式作了详细描述，并非以此限制本发明的实施范围，凡依本发明的原理、构造以及结构所作的等效变化，均应涵盖于本发明的保护范围内。Of course, the above is only a detailed description of the preferred specific implementation of the present invention in conjunction with the accompanying drawings, and is not intended to limit the scope of the present invention. All equivalent changes made according to the principle, structure and structure of the present invention should be covered by this within the scope of protection of the invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510213747.XACN104771182A (en) | 2015-04-29 | 2015-04-29 | Blood taking needle for experimental animal heart |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510213747.XACN104771182A (en) | 2015-04-29 | 2015-04-29 | Blood taking needle for experimental animal heart |
| Publication Number | Publication Date |
|---|---|
| CN104771182Atrue CN104771182A (en) | 2015-07-15 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510213747.XAPendingCN104771182A (en) | 2015-04-29 | 2015-04-29 | Blood taking needle for experimental animal heart |
| Country | Link |
|---|---|
| CN (1) | CN104771182A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2082154U (en)* | 1991-02-09 | 1991-08-07 | 徐福照 | One-service blood sample collector |
| US20060167416A1 (en)* | 2004-11-23 | 2006-07-27 | Mark Mathis | Steerable device for accessing a target site and methods |
| CN201127781Y (en)* | 2007-12-25 | 2008-10-08 | 金彦 | Perfusion needle head special for children |
| CN103055379A (en)* | 2013-01-16 | 2013-04-24 | 常州市龙莱富医用材料有限公司 | Arterial infusion needle head for infants |
| CN204671173U (en)* | 2015-04-29 | 2015-09-30 | 桂林医学院 | Laboratory animal Culling heart blood pin |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2082154U (en)* | 1991-02-09 | 1991-08-07 | 徐福照 | One-service blood sample collector |
| US20060167416A1 (en)* | 2004-11-23 | 2006-07-27 | Mark Mathis | Steerable device for accessing a target site and methods |
| CN201127781Y (en)* | 2007-12-25 | 2008-10-08 | 金彦 | Perfusion needle head special for children |
| CN103055379A (en)* | 2013-01-16 | 2013-04-24 | 常州市龙莱富医用材料有限公司 | Arterial infusion needle head for infants |
| CN204671173U (en)* | 2015-04-29 | 2015-09-30 | 桂林医学院 | Laboratory animal Culling heart blood pin |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
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| EXSB | Decision made by sipo to initiate substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | Application publication date:20150715 | |
| WD01 | Invention patent application deemed withdrawn after publication |