WO2022099959A1 - 一种避免取样针挂液的清洗站结构 - Google Patents

一种避免取样针挂液的清洗站结构 Download PDF

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Publication number
WO2022099959A1
WO2022099959A1 PCT/CN2021/081005 CN2021081005W WO2022099959A1 WO 2022099959 A1 WO2022099959 A1 WO 2022099959A1 CN 2021081005 W CN2021081005 W CN 2021081005W WO 2022099959 A1 WO2022099959 A1 WO 2022099959A1
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Prior art keywords
hole
cleaning
waste liquid
upper body
holes
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PCT/CN2021/081005
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English (en)
French (fr)
Inventor
吴国银
胡统号
吴冬
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苏州长光华医生物医学工程有限公司
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Publication of WO2022099959A1 publication Critical patent/WO2022099959A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/023—Cleaning the external surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure

Definitions

  • the invention relates to the technical field of cleaning structures, in particular to a cleaning structure for avoiding liquid hanging on a sampling needle.
  • the sample needle In the fully automatic chemiluminescence immunoassay analyzer, after the reagent needle and the sample needle are loaded, in order to avoid the interaction between different samples and reagents, when the next sample is collected or the next reagent is added, the sample needle needs to be adjusted. Cleaning, whether cleaning is clean or not directly affects the experimental results.
  • the sample needle or reagent needle is usually cleaned by water column flushing.
  • the cleaning method of flushing the needle tip by water column has the following defects:
  • the purpose of the present invention is to provide a cleaning structure that avoids liquid hanging on the sampling needle in order to solve the above problems.
  • the present invention realizes above-mentioned purpose through following technical scheme:
  • a cleaning structure for avoiding liquid hanging on a sampling needle comprising an upper body, a middle body, a lower body, a system liquid joint, a strengthening cleaning liquid joint, an air flow joint, and a waste liquid joint;
  • Small cavity holes are formed on the inner side of the upper body, air holes are formed on both sides of the small cavity holes and on the inner side of the upper body, the air holes are communicated with the small cavity holes, and the lower part of the small cavity holes is formed. and a large cavity hole is formed on the inner side of the upper body, the top of the large cavity hole is formed with a dome, and the air hole is connected with an air flow joint;
  • the middle body is installed under the upper body, the middle body includes a cleaning pool, the cleaning pool is communicated with the large cavity, the bottom of the cleaning pool is formed with a spherical bottom, and the bottom of the middle body is formed.
  • a first waste liquid collection cavity is formed inside, the upper edge of the cleaning tank adjacent to the first waste liquid collection cavity is formed with a diversion notch, and the outer side of the cleaning tank is provided with a waste liquid collection hole.
  • the waste liquid collection hole is connected to the first waste liquid collection cavity, and the system liquid joint and the enhanced cleaning liquid joint are installed on the middle body;
  • the lower body is installed below the middle body, the inner side of the lower body is formed with a second waste liquid collection cavity, and the lower body is connected with a waste liquid joint.
  • a cleaning structure of the present invention for avoiding liquid hanging on the sampling needle is characterized in that:
  • Both sides of the upper body are formed with first threaded holes, and the air flow joints are connected through the first threaded holes;
  • a second threaded hole is formed on the side of the middle body, the second threaded hole penetrates the cleaning pool, and a third threaded hole is formed on the other side of the middle body, and the third threaded hole penetrates the cleaning pool a tank, the system fluid connector is installed on the second threaded hole, and the enhanced cleaning fluid connector is installed on the third threaded hole;
  • a fourth threaded hole is formed below the second waste liquid collection chamber, and a waste liquid connector is installed on the fourth threaded hole.
  • a cleaning structure of the present invention for avoiding liquid hanging on the sampling needle is characterized in that:
  • the bottom of the upper body is provided with a first cylindrical shaft, the first cylindrical shaft is integrally formed with the upper body, and the outer side of the first cylindrical shaft is formed with a first sealing groove, which is installed in the first sealing groove with sealing ring;
  • the upper step hole is arranged on the upper end face of the middle body, the cleaning pool is formed at the center of the bottom of the upper step hole, and the lower step hole is formed at the bottom of the middle body;
  • the lower body includes a second cylindrical shaft and a second sealing groove, the top of the lower body is provided with the second cylindrical shaft, the second cylindrical shaft is integrally formed on the lower body, and the second cylindrical shaft is The outer side of the casing is formed with the second sealing groove, and a sealing rubber ring is installed in the second sealing groove;
  • the upper body is inserted into the upper stepped hole through the first cylindrical shaft, and the lower body is inserted into the lower stepped hole through the second cylindrical shaft.
  • a cleaning structure of the present invention for avoiding liquid hanging on the sampling needle is characterized in that:
  • the bottom four corners of the upper body are formed with first screw holes, the top four corners of the middle body are formed with second screw holes, the upper end four corners of the lower body are formed with countersunk holes, and the lower four corners of the lower body are formed with countersunk holes.
  • the upper body and the middle body can be connected by screws through the first screw holes and the second screw holes, and the lower body and the middle body can be connected by screws through the second screw holes and countersunk heads. holes are connected, and the fixing U holes are used for fixing the lower body.
  • a cleaning structure of the present invention for avoiding liquid hanging of a sampling needle is characterized in that: the upper body, the middle body and the lower body are made of alkali-resistant materials, ABS or PP or PEI or PTFE or PEEK.
  • the cleaning structure of the present invention for avoiding liquid hanging on the sampling needle is characterized in that: the number of waste liquid collection holes is 2-8.
  • the cleaning structure of the present invention for avoiding liquid hanging on the sampling needle is characterized in that the included angle between the axes of the two air holes and the axis of the small cavity hole is both 45 degrees.
  • a cleaning structure of the present invention that avoids liquid hanging on the sampling needle is characterized in that: the upper body, the middle body, and the lower body are fastened and connected by screws.
  • the cleaning structure can effectively avoid liquid hanging after the needle tip is cleaned, has good cleaning effect, high cleaning efficiency, reduces the amount of cleaning liquid, saves time and effort, and has high work efficiency.
  • FIG. 1 is a front cross-sectional view of a cleaning structure for avoiding liquid hanging on a sampling needle according to the present invention
  • Fig. 2 is a front cross-sectional view of the upper body of the cleaning structure for avoiding liquid hanging on the sampling needle according to the present invention
  • FIG. 3 is a schematic structural diagram of the upper body of the cleaning structure for avoiding liquid hanging on the sampling needle according to the present invention
  • FIG. 4 is a front cross-sectional view of a body in a cleaning structure for avoiding liquid hanging of a sampling needle according to the present invention
  • FIG. 5 is a schematic structural diagram of a body in a cleaning structure for avoiding liquid hanging on a sampling needle according to the present invention
  • FIG. 6 is a front cross-sectional view of the lower body of a cleaning structure for avoiding liquid hanging on the sampling needle according to the present invention
  • FIG. 7 is a schematic structural diagram of a body under a cleaning structure for avoiding liquid hanging on the sampling needle according to the present invention.
  • Fig. 8 is the first structural schematic diagram of the use state of the cleaning structure for avoiding liquid hanging on the sampling needle according to the present invention
  • FIG. 9 is a second structural schematic diagram of the use state of a cleaning structure for avoiding liquid hanging on the sampling needle according to the present invention.
  • FIG. 10 is a third structural schematic diagram of the use state of the cleaning structure for avoiding liquid hanging on the sampling needle according to the present invention.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.
  • installed should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.
  • a cleaning structure to avoid liquid hanging on the sampling needle includes an upper body 1, a middle body 2, a lower body 3, a system fluid connector 4, and an enhanced cleaning fluid connector 5.
  • the upper body 1 includes a first The threaded hole 11 and the small cavity hole 12, the two sides of the upper body 1 are formed with a first threaded hole 11, the inner side of the upper body 1 is formed with a small cavity hole 12, the two sides of the small cavity hole 12 are on the inner side of the upper body 1
  • Two air holes 13 are symmetrically formed, and a through hole 131 is provided at the penetration of the two air holes 13 and the small cavity hole 12 , and a large cavity hole 14 is formed under the small cavity hole 12 and inside the upper body 1 , and the air hole 13 penetrates through the large cavity 13 .
  • the cavity 14, the top of the large cavity 14 is formed with a dome 141, the bottom of the upper body 1 is provided with a first cylindrical shaft 15, the first cylindrical shaft 15 is integrally formed with the upper body 1, and the outer side of the first cylindrical shaft 15 is formed with a The first sealing groove 151, the bottom four corners of the upper body 1 are formed with first screw holes 16, the sealing ring 8 is installed in the first sealing groove 151, the air flow joint 6 is installed on the two first threaded holes 11, and the upper body 1
  • the middle body 2 is installed below;
  • the middle body 2 includes an upper step hole 21 and a cleaning pool 22, the upper step hole 21 is arranged on the upper end face of the middle body 2, a cleaning pool 22 is formed at the bottom center of the upper step hole 21, and a second thread is formed on the side of the middle body 2.
  • the upper edge of the cleaning pool 22 is symmetrically formed with two diversion slots 221, the bottom of the cleaning pool 22 is formed with a spherical bottom 222, the second threaded hole 23 runs through the cleaning pool 22, and the other side of the middle body 2 is formed with The third threaded hole 24 , the third threaded hole 24 penetrates the cleaning tank 22 , the bottom of the middle body 2 is formed with a lower step hole 25 , and a first waste liquid collection cavity 27 is formed above the lower step hole 25 and inside the middle body 2 , the outside of the cleaning tank 22 is provided with a waste liquid collection hole 26, the waste liquid collection hole 26 is connected to the first waste liquid collection cavity 27, the top four corners of the middle body 2 are formed with second screw holes 28, and the second threaded holes 23 are installed with The system fluid connector 4, the reinforced cleaning fluid connector 5 is installed on the third threaded hole 24, and the lower body 3 is installed under the middle body 2;
  • the lower body 3 includes a second cylindrical shaft 31 and a second sealing groove 311.
  • the top end of the lower body 3 is provided with a second cylindrical shaft 31.
  • the second cylindrical shaft 31 is integrally formed on the lower body 3, and the outer side of the second cylindrical shaft 31 is formed with a The second sealing groove 311, a sealing rubber ring is installed in the second sealing groove 311, the inner side of the lower body 3 is formed with a second waste liquid collection cavity 33, the second waste liquid collection cavity 33 penetrates the second cylindrical shaft 31, the second waste liquid collection cavity 33
  • a fourth threaded hole 32 is formed below the liquid collection chamber 33 , a countersunk hole 34 is formed at four corners of the upper end of the lower body 3 , a fixed U hole 35 is formed at the lower four corners of the lower body 3 , and the fourth threaded hole 32 is installed with waste liquid Connector 7.
  • the upper body 1, the middle body 2 and the lower body 3 are made of alkali-resistant materials, ABS or PP or PEI or PTFE or PEEK; the number of waste liquid collection holes 26 is 2-8; The included angles between the axes of the cavity holes 12 are all 45 degrees; the upper body 1 , the middle body 2 and the lower body 3 are fastened and connected by screws.
  • the working principle and use method of the present invention after the needle is filled with the sample, the needle tip is aligned with the small cavity hole 12 and lowered to the designated height in the cleaning pool 22, the needle is opened for cleaning, and the inner wall of the needle is cleaned with the system cleaning solution.
  • the liquid is injected into the cleaning tank 22, and after the cleaning liquid fills the cleaning tank 22, it flows into the waste liquid collection hole 26 through the diversion slot 221;
  • the inner cleaning After the inner cleaning for a certain period of time, the inner cleaning is turned off, and the intensive cleaning is turned on.
  • the intensive cleaning liquid is injected into the cleaning pool 22 through the intensive cleaning liquid joint 5.
  • the water flow hits the spherical bottom 222 at the bottom of the cleaning pool 22, which acts as an upward surge.
  • the cleaning tank 22 After filling the cleaning tank 22 with the enhanced cleaning liquid, it flows into the waste liquid collection hole 26 through the diversion notch 221, and when the enhanced cleaning liquid flows out of the waste liquid tank, the residual sample or reagent spit out from the first needle is washed once the role of;
  • the function of soaking is to destroy the residual protein on the inner wall of the needle to facilitate cleaning. Adjust the soaking time as needed. The number of soaking can also be increased;
  • the system fluid is spit out from the needle, and the inner wall of the needle is cleaned again.
  • Perform external cleaning This step of cleaning not only cleans the needle tip, but also removes the residue of the enhanced cleaning solution.
  • the enhanced cleaning solution is a strong alkali. If it is not cleaned, it is easy to damage the protein in the sample or reagent, which will affect the next experimental results, or even destroy it. patient samples;
  • the needle internal cleaning is still carried out, open the air valve, let the high-pressure gas pass through the air flow joint 6, and blow into the small cavity hole 12 under the action of the air hole 13.
  • the needle is lifted, Raised to a certain height, at this position, the needle tip should be separated from the liquid level of the system fluid in the cleaning tank 22, and lower than the air hole 13, at this time, close the needle for cleaning;
  • the needle After closing the inner cleaning, the needle continues to be lifted at a slow speed. During the needle lifting process, the airflow is blown to the needle, which has a drying effect on the needle, so as to avoid liquid hanging on the needle tip until the needle is lifted to the designated position higher than the through hole 131 at the bottom of the air hole 13. , the needle returns to the home position at a relatively fast speed, then close the air valve and stop blowing air. From the designated position to the home position, the air blowing has a drying effect on the residual system liquid on the inner wall of the small cavity hole 12.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

一种避免取样针挂液的清洗结构，包括上本体（1）、中本体（2）、下本体（3）、***液接头（4）、强化清洗液接头（5），所述上本体（1）包括第一螺纹孔（11）、小腔孔（12），所述上本体（1）的两侧面均成型有所述第一螺纹孔（11），所述上本体（1）的内侧成型有所述小腔孔（12），所述小腔孔（12）的两侧且在所述上本体（1）的内侧对称成型有两条气孔（13），两条所述气孔（13）与所述小腔孔（12）的贯穿处设置有通孔（131）。该避取样针挂液的清洗结构能够有效避免针尖清洗后挂液，清洗效果佳，清洗效率高，减少清洗液用量，省时省力，工作效果高。

Description

一种避免取样针挂液的清洗站结构 技术领域
本发明涉及清洗结构技术领域，特别是涉及一种避免取样针挂液的清洗结构。
背景技术
在全自动化学发光免疫分析仪中，试剂针和样本针在加样后，为了避免不同样本及试剂间相互影响，因此在采集下一个样本或者加注下一种试剂时，需要对加样针进行清洗，清洗是否干净直接影响实验结果。
目前，常用水柱冲洗的方式对样本针或试剂针进行清洗，通过水柱冲洗针尖的清洗方式存在以下缺陷：
(1)需要精确调试针尖与水柱的相对位置，保证针尖及以上区域(采样时浸入样本或试剂的部分)被水柱充分包裹才能确保清洗干净，这增加了坐标调试的难度；
(2)单侧水柱冲洗针尖时，水柱对面针尖部位无法得到有效冲洗，冲洗效果差，造成偶发清洗不干净；
(3)针尖冲洗需要较长时间，冲洗效率差，浪费清洗液，且清洗时间长；
(4)水柱冲洗，水流不稳定，清洗后针尖挂液严重。
发明内容
本发明的目的就在于为了解决上述问题而提供一种避免取样针挂液的清洗结构。
本发明通过以下技术方案来实现上述目的：
一种避免取样针挂液的清洗结构，包括上本体、中本体、下本体、***液接头、强化清洗液接头、气流接头、废液接头；
所述上本体的内侧成型有小腔孔，所述小腔孔的两侧且在所述上本体的内侧成型有气孔，所述气孔与所述小腔孔连通，所述小腔孔的下方且在所述上本体的内侧成型有大腔孔，所述大腔孔的顶端成型有圆顶，所述气孔连接有气流接头；
所述中本体安装在所述上本体的下方，所述中本体包括清洗池，所述清洗池与所述大腔孔连通，所述清洗池的底部成型有球形底部，在所述中本体的内部成型有第一废液收集腔，所述清洗池与所述第一废液收集腔相邻的上边缘成型有导流槽口，所述清洗池的外侧设置有废液收集孔，所述废液收集孔连通所述第一废液收集腔，所述中本体上安装有所述***液接头、强化清洗液接头；
所述下本体安装在所述中本体的下方，所述下本体的内侧成型有第二废液收集腔，所述下本体连接有废液接头。
优选地，本发明的一种避免取样针挂液的清洗结构，其特征在于：
所述上本体的两侧面均成型有第一螺纹孔，通过所述第一螺纹孔连接所述气流接头；
所述中本体的侧面成型有第二螺纹孔，所述第二螺纹孔贯穿所述清洗池，所述中本体的另一侧面成型有第三螺纹孔，所述第三螺纹孔贯穿所述清洗池，所述第二螺纹孔上安装有所述***液接头，所述第三螺纹孔上安装有所述强化清洗液接头；
所述第二废液收集腔的下方成型有第四螺纹孔，所述第四螺纹孔上安装有废液接头。
优选地，本发明的一种避免取样针挂液的清洗结构，其特征在于：
所述上本体的底部设置有第一圆柱轴，所述第一圆柱轴与所述上本体一体成型，所述第一圆柱轴的外侧成型有第一密封槽，所述第一密封槽内安装有密 封圈；
上台阶孔设置在所述中本体的上端面，所述上台阶孔的底部中心位置成型有所述清洗池，所述中本体的底部成型有下台阶孔；
所述下本体包括第二圆柱轴、第二密封槽，所述下本体的顶端设置有所述第二圆柱轴，所述第二圆柱轴一体成型于所述下本体，所述第二圆柱轴的外侧成型有所述第二密封槽，所述第二密封槽内安装有密封胶圈；
所述上本体通过所述第一圆柱轴与所述上台阶孔插接，所述下本体通过所述第二圆柱轴与所述下台阶孔插接。
优选地，本发明的一种避免取样针挂液的清洗结构，其特征在于：
所述上本体的底部四角成型有第一螺钉孔，所述中本体的顶端四角成型有第二螺钉孔，所述下本体的上端四角成型有沉头孔，所述下本体的下部四角成型有固定U孔；
所述上本体和所述中本体能够通过螺钉穿过所述第一螺钉孔、第二螺钉孔连接，所述下本体和所述中本体能够通过螺钉穿过所述第二螺钉孔、沉头孔连接，所述固定U孔用于供所述下本体固定。
优选地，本发明的一种避免取样针挂液的清洗结构，其特征在于：所述上本体、所述中本体、所述下本体材质为耐碱性材料，ABS或PP或PEI或PTFE或PEEK。
优选地，本发明的一种避免取样针挂液的清洗结构，其特征在于：所述废液收集孔为2-8个。
优选地，本发明的一种避免取样针挂液的清洗结构，其特征在于：两条所述气孔的轴线与所述小腔孔的轴线之间的夹角均为45度。
优选地，本发明的一种避免取样针挂液的清洗结构，其特征在于：所述上 本体、所述中本体、所述下本体通过螺钉紧固连接。
与现有技术相比，本发明的有益效果如下：
该清洗结构能够有效避免针尖清洗后挂液，清洗效果佳，清洗效率高，减少清洗液用量，省时省力，工作效率高。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是本发明所述一种避免取样针挂液的清洗结构的主视剖视图；
图2是本发明所述一种避免取样针挂液的清洗结构上本体的主视剖视图；
图3是本发明所述一种避免取样针挂液的清洗结构上本体的结构示意图；
图4是本发明所述一种避免取样针挂液的清洗结构中本体的主视剖视图；
图5是本发明所述一种避免取样针挂液的清洗结构中本体的结构示意图；
图6是本发明所述一种避免取样针挂液的清洗结构下本体的主视剖视图；
图7是本发明所述一种避免取样针挂液的清洗结构下本体的结构示意图；
图8是本发明所述一种避免取样针挂液的清洗结构使用状态的第一结构示意图；
图9是本发明所述一种避免取样针挂液的清洗结构使用状态的第二结构示意图；
图10是本发明所述一种避免取样针挂液的清洗结构使用状态的第三结构示意图。
附图标记说明如下：
1、上本体；11、第一螺纹孔；12、小腔孔；13、气孔；131、通孔；14、大腔孔；141、圆顶；15、第一圆柱轴；151、第一密封槽；16、第一螺钉孔；2、中本体；21、上台阶孔；22、清洗池；221、导流槽口；222、球形底部；23、第二螺纹孔；24、第三螺纹孔；25、下台阶孔；26、废液收集孔；27、第一废液收集腔；28、第二螺钉孔；3、下本体；31、第二圆柱轴；311、第二密封槽；32、第四螺纹孔；33、第二废液收集腔；34、沉头孔；35、固定U孔；4、***液接头；5、强化清洗液接头；6、气流接头；7、废液接头；8、密封圈。
具体实施方式
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”等的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以通过具体情况理解上述术语在本发明中的具体含义。
下面结合附图对本发明作进一步说明：
如图1-图10所示，一种避免取样针挂液的清洗结构，包括上本体1、中本体2、下本体3、***液接头4、强化清洗液接头5，上本体1包括第一螺纹孔11、小腔孔12，上本体1的两侧面均成型有第一螺纹孔11，上本体1的内侧成型有小腔孔12，小腔孔12的两侧且在上本体1的内侧对称成型有两条气孔13，两条气孔13与小腔孔12的贯穿处设置有通孔131，小腔孔12的下方且在上本体1的内侧成型有大腔孔14，气孔13贯穿大腔孔14，大腔孔14的顶端成型有圆顶141，上本体1的底部设置有第一圆柱轴15，第一圆柱轴15与上本体1一体成型，第一圆柱轴15的外侧成型有第一密封槽151，上本体1的底部四角成型有第一螺钉孔16，第一密封槽151内安装有密封圈8，两个第一螺纹孔11上均安装有气流接头6，上本体1的下方安装有中本体2；
中本体2包括上台阶孔21、清洗池22，上台阶孔21设置在中本体2的上端面，上台阶孔21的底部中心位置成型有清洗池22，中本体2的侧面成型有第二螺纹孔23，清洗池22的上边缘对称成型有两个导流槽口221，清洗池22的底部成型有球形底部222，第二螺纹孔23贯穿清洗池22，中本体2的另一侧面成型有第三螺纹孔24，第三螺纹孔24贯穿清洗池22，中本体2的底部成型有下台阶孔25，下台阶孔25的上方且在中本体2的内部成型有第一废液收集腔27，清洗池22的外侧设置有废液收集孔26，废液收集孔26连通第一废液收集腔27，中本体2的顶端四角成型有第二螺钉孔28，第二螺纹孔23上安装有***液接头4，第三螺纹孔24上安装有强化清洗液接头5，中本体2的下方安装有下本体3；
下本体3包括第二圆柱轴31、第二密封槽311，下本体3的顶端设置有第二圆柱轴31，第二圆柱轴31一体成型于下本体3，第二圆柱轴31的外侧成型有第二密封槽311，第二密封槽311内安装有密封胶圈，下本体3的内侧成型有 第二废液收集腔33，第二废液收集腔33贯穿第二圆柱轴31，第二废液收集腔33的下方成型有第四螺纹孔32，下本体3的上端四角成型有沉头孔34，下本体3的下部四角成型有固定U孔35，第四螺纹孔32上安装有废液接头7。
优选地：上本体1、中本体2、下本体3材质为耐碱性材料，ABS或PP或PEI或PTFE或PEEK；废液收集孔26为2-8个；两条气孔13的轴线与小腔孔12的轴线之间的夹角均为45度；上本体1、中本体2、下本体3通过螺钉紧固连接。
本发明的工作原理及使用方法：针加完样本后，针尖对准小腔孔12，下降至清洗池22内的指定高度，针开启内清洗，使用***清洗液进行清洗针内壁，此时清洗液被注入清洗池22内，清洗液注满清洗池22后，通过导流槽口221流入废液收集孔26；
内清洗一定时间后，关闭内清洗，开启强化清洗，强化清洗液经过强化清洗液接头5注入清洗池22，注入强化清洗液时，水流撞击清洗池22底部的球形底部222，起到上涌的作用，强化清洗液注满清洗池22后，通过导流槽口221流入废液收集孔26，强化清洗液流出废液池时起到将第一步针内吐出的样本或试剂残留进行一次冲洗的作用；
强化清洗的同时，开启注射泵，针内吸入强化清洗液，间隔0.5-1s后再吐出强化清洗液，浸泡的作用是破坏针内壁残留的蛋白，以利于清洗，根据需要，浸泡的时间调整，浸泡次数也可以增加；
强化清洗一段时间后，关闭强化清洗，然后再次开启针的内清洗，针内吐出***液，再次对针的内壁进行清洗，同时外清洗泵开启，从***液接头4吐出***液，对针尖外壁进行外清洗，该步清洗除了对针尖进行清洗外，同时去除强化清洗液残留，强化清洗液属于强碱，若不清洗容易破坏样本或试剂中的 蛋白，对下一步实验结果造成影响，甚至破坏病人样本；
使用***液同时进行内外清洗后，关闭普通外清洗，针内清洗仍进行，开启气阀，让高压气体通过气流接头6，在气孔13的作用下吹入小腔孔12，此时针抬起，抬起至一定的高度，在此位置时，针尖应脱离清洗池22内***液的液面，且低于气孔13，此时关闭针内清洗；
关闭内清洗后，针以慢速继续抬起，抬针过程气流吹向针，对针起到干燥效果，从而避免针尖的挂液，直至针抬至高于气孔13底部的通孔131的指定位置，针以较快速度回原点位置home，然后关闭气阀，停止吹气，从该指定位置至home位，吹气对小腔孔12内壁的残留***液起到干燥效果。
以上显示和描述了本发明的基本原理、主要特征和优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。

Claims (8)

  1. 一种避免取样针挂液的清洗结构，其特征在于：包括上本体(1)、中本体(2)、下本体(3)、***液接头(4)、强化清洗液接头(5)、气流接头(6)、废液接头(7)；
    所述上本体(1)的内侧成型有小腔孔(12)，所述小腔孔(12)的两侧且在所述上本体(1)的内侧成型有气孔(13)，所述气孔(13)与所述小腔孔(12)连通，所述小腔孔(12)的下方且在所述上本体(1)的内侧成型有大腔孔(14)，所述大腔孔(14)的顶端成型有圆顶(141)，所述气孔(13)连接有气流接头(6)；
    所述中本体(2)安装在所述上本体(1)的下方，所述中本体(2)包括清洗池(22)，所述清洗池(22)与所述大腔孔(14)连通，所述清洗池(22)的底部成型有球形底部(222)，在所述中本体(2)的内部成型有第一废液收集腔(27)，所述清洗池(22)与所述第一废液收集腔(27)相邻的上边缘成型有导流槽口(221)，所述清洗池(22)的外侧设置有废液收集孔(26)，所述废液收集孔(26)连通所述第一废液收集腔(27)，所述中本体(2)上安装有所述***液接头(4)、强化清洗液接头(5)；
    所述下本体(3)安装在所述中本体(2)的下方，所述下本体(3)的内侧成型有第二废液收集腔(33)，所述下本体(3)连接有废液接头(7)。
  2. 根据权利要求1所述的一种避免取样针挂液的清洗结构，其特征在于：
    所述上本体(1)的两侧面均成型有第一螺纹孔(11)，通过所述第一螺纹孔(11)连接所述气流接头(6)；
    所述中本体(2)的侧面成型有第二螺纹孔(23)，所述第二螺纹孔(23)贯穿所述清洗池(22)，所述中本体(2)的另一侧面成型有第三螺纹孔(24)， 所述第三螺纹孔(24)贯穿所述清洗池(22)，所述第二螺纹孔(23)上安装有所述***液接头(4)，所述第三螺纹孔(24)上安装有所述强化清洗液接头(5)；
    所述第二废液收集腔(33)的下方成型有第四螺纹孔(32)，所述第四螺纹孔(32)上安装有废液接头(7)。
  3. 根据权利要求1所述的一种避免取样针挂液的清洗结构，其特征在于：
    所述上本体(1)的底部设置有第一圆柱轴(15)，所述第一圆柱轴(15)与所述上本体(1)一体成型，所述第一圆柱轴(15)的外侧成型有第一密封槽(151)，所述第一密封槽(151)内安装有密封圈(8)；
    上台阶孔(21)设置在所述中本体(2)的上端面，所述上台阶孔(21)的底部中心位置成型有所述清洗池(22)，所述中本体(2)的底部成型有下台阶孔(25)；
    所述下本体(3)包括第二圆柱轴(31)、第二密封槽(311)，所述下本体(3)的顶端设置有所述第二圆柱轴(31)，所述第二圆柱轴(31)一体成型于所述下本体(3)，所述第二圆柱轴(31)的外侧成型有所述第二密封槽(311)，所述第二密封槽(311)内安装有密封胶圈；
    所述上本体(1)通过所述第一圆柱轴(15)与所述上台阶孔(21)插接，所述下本体(3)通过所述第二圆柱轴(31)与所述下台阶孔(25)插接。
  4. 根据权利要求3所述的一种避免取样针挂液的清洗结构，其特征在于：
    所述上本体(1)的底部四角成型有第一螺钉孔(16)，所述中本体(2)的顶端四角成型有第二螺钉孔(28)，所述下本体(3)的上端四角成型有沉头孔(34)，所述下本体(3)的下部四角成型有固定U孔(35)；
    所述上本体(1)和所述中本体(2)能够通过螺钉穿过所述第一螺钉孔(16)、第二螺钉孔(28)连接，所述下本体(3)和所述中本体(2)能够通过螺钉穿过所述第二螺钉孔(28)、沉头孔(34)连接，所述固定U孔(35)用于供所述下本体(3)固定。
  5. 根据权利要求1所述的一种避免取样针挂液的清洗结构，其特征在于：所述上本体(1)、所述中本体(2)、所述下本体(3)材质为耐碱性材料，ABS或PP或PEI或PTFE或PEEK。
  6. 根据权利要求1所述的一种避免取样针挂液的清洗结构，其特征在于：所述废液收集孔(26)为2-8个。
  7. 根据权利要求1所述的一种避免取样针挂液的清洗结构，其特征在于：两条所述气孔(13)的轴线与所述小腔孔(12)的轴线之间的夹角均为45度。
  8. 根据权利要求1所述的一种避免取样针挂液的清洗结构，其特征在于：所述上本体(1)、所述中本体(2)、所述下本体(3)通过螺钉紧固连接。
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CN211538839U (zh) * 2019-09-09 2020-09-22 深圳市锦瑞生物科技有限公司 一种清洗拭子及清洗***
CN110877040A (zh) * 2019-11-20 2020-03-13 香港大德昌龙生物科技有限公司 加样针清洗设备及加样针清洗的方法、应用

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CN115301639B (zh) * 2022-07-13 2023-07-28 瑞莱谱(杭州)医疗科技有限公司 一种质谱前处理设备的液路***
CN116037578A (zh) * 2023-04-03 2023-05-02 烟台盈德精密机械有限公司 尿素喷射器内流道的清洗装置
CN116037578B (zh) * 2023-04-03 2023-06-06 烟台盈德精密机械有限公司 尿素喷射器内流道的清洗装置

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