CN206095705U - Immunoassay examination sampling pipe - Google Patents

Abstract

The utility model relates to the technical field of immunology, in particular to a sampling tube for immunological testing. There is a movable square cylinder inside the casing, and a sealing head is hinged at the lower end of the movable square cylinder. The sides are respectively hinged on the four sides of the lower port of the movable square cylinder. The hinges are equipped with springs, and the upper and lower ends of the casing are respectively provided with upper and lower sealing plugs. Between the top of the casing and the outer wall of the top of the movable square cylinder A tension spring is installed; a sampling suction pipe is installed in the inner cavity of the movable square cylinder, and a suction port made of a hard material is installed at the lower end of the sampling suction pipe. The immunity test sampling tube provided by the utility model can avoid a large amount of air entering during the sampling process. After the sampling is finished, the sample is retracted into the movable square tube in the sampling straw, and will not come into contact with the air to avoid contamination of the sample. , It is also especially suitable for sampling samples of invisible light, which ensures the accuracy of the test results.

Description

Immunoassay Test Sampling Tube

technical field

The utility model relates to the technical field of immunology, in particular to a sampling tube for immunological testing.

Background technique

Sampling tubes are required for immunological testing. Most commonly used sampling tubes are composed of a sampling tube body, a glass straw, and a liquid suction air bag installed on the upper end of the glass straw. These commonly used sampling tubes are mostly made of glass, and their suction nozzles are easy to use. Collision damage; during use, a large amount of air is brought in during the liquid absorption process, resulting in other viruses or bacteria remaining in the sample, which affects the detection effect; in addition, some sample substances cannot be exposed to light under special circumstances, and they are easy to lose chemical activity when exposed to light.

Utility model content

The purpose of this utility model is to provide a bottle mouth of a sampling bottle to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

Sampling tube for immunoassay testing, including a cylindrical casing and a movable square cylinder with a square cross section, the lower end of the movable square cylinder is hinged with a sealing head, and the sealing head is composed of four triangular sealing pieces, four The bottom edges of the triangular sealing sheets are respectively hinged on the four sides of the lower port of the movable square cylinder. The hinges have springs, and the spring force presses the triangular sealing sheets to converge toward the center of the lower port of the movable square cylinder, and the adjacent triangular sealing sheets The sides of the sheets are closed together to form a tetrahedral sealing head; the upper and lower ends of the casing have upper and lower sealing plugs respectively, and the outer peripheral sides of the upper and lower sealing plugs are cylindrical surfaces, which are installed on the casing. On the inner wall, there is a square hole in the middle of the upper sealing plug and the lower sealing plug, and the hole is in sealing contact with the outer wall of the movable square cylinder; a tension spring is installed between the top of the casing and the outer wall of the top of the movable square cylinder; the tension spring limits The upward stroke of the movable square cylinder; the inner cavity of the movable square cylinder is also equipped with a sampling straw, and there is a sealing ring on the top of the inner cavity of the movable square cylinder, and the inner hole of the sealing ring is in sealing contact with the outer wall of the sampling straw; the lower end of the described sampling straw is installed There is a suction port made of hard material, the sampling straw goes down, and the suction port pushes away the multiple triangular sealing sheets of the sealing head; the outer wall of the sampling straw has a length scale.

In a preferred design, the lower end of the sleeve is connected to an annular collar, the inner diameter of the collar matches the outer diameter of the mouth of the sampling bottle, and the collar is placed outside the mouth of the sampling bottle.

Further, a plurality of liquid level sensors are installed on the outer wall of the lower end of the sampling suction pipe; the liquid level sensors are connected to the signal acquisition device through cables.

The immunological test inspection sampling tube provided by the utility model can avoid a large amount of air entering during the sampling process. After the sampling is completed, the sample is retracted into the movable square cylinder in the sampling straw and will not come into contact with the air to avoid contamination of the sample. , It is also especially suitable for sampling samples of invisible light, which ensures the accuracy of the test results.

Description of drawings

Fig. 1 is the structural representation of the utility model.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Example 1

As shown in Figure 1, the immunoassay test sampling tube includes a cylindrical casing 1 and a square movable square cylinder 7 with a square cross section, the lower end of the movable square cylinder 7 is hinged with a sealing head 9, and the sealing head 9. It is composed of four triangular sealing sheets. The bottom edges of the four triangular sealing sheets are respectively hinged on the four sides of the lower port of the movable square cylinder 7. The hinge has a spring, and the spring force presses the movable square cylinder of the triangular sealing sheet to The center of the lower port of 7 is closed, and the sides of the adjacent triangular sealing pieces are closed together to form a tetrahedral sealing head; the upper and lower ends of the casing 1 have an upper sealing plug 5 and a lower sealing plug 4 respectively, and the upper sealing plug 5 and the outer peripheral side of the lower sealing plug 4 are cylindrical surfaces, installed on the inner wall of the casing 1, there is a square hole in the middle of the upper sealing plug 5 and the lower sealing plug 4, and the hole is in sealing contact with the outer wall of the movable square tube 7; A tension spring 6 is installed between the top of the sleeve pipe 1 and the outer wall of the movable square cylinder 7 top; the tension spring 6 limits the upward stroke of the movable square cylinder 7; the inner cavity of the movable square cylinder 7 is also equipped with a sampling suction pipe 8, There is a sealing ring on the top of the inner cavity of the movable square cylinder 7, and the inner hole of the sealing ring is in sealing contact with the outer wall of the sampling straw 8; The plurality of triangular sealing sheets of the sealing head 9 are opened; the outer wall of the sampling suction pipe 8 has a length scale.

Sleeve 1 is connected to the mouth of the sampling bottle, and the movable square cylinder 7 is pushed down to penetrate into the sampling bottle, and then the sampling straw 8 is pushed down, and the suction port 10 pushes away the multi-triangular sealing pieces of the sealing head 9, when Enter the sample agent and start to suck the sample. After the sampling is finished, first lift the sampling straw 8, and then close the multiple triangular sealing pieces of the sealing head 9 again, and then lift the movable square cylinder 7; finally, take the sleeve 1 out of the sampling bottle. Down.

Since the sleeve pipe 1, the movable square cylinder 7, and the sampling suction pipe 8 have sealing devices mutually, so a large amount of air is avoided from entering. And after the sampling is finished, the sampling suction pipe 8 is withdrawn in the movable square cylinder 7, and the sealing head 9 is sealed again to ensure that the sample is polluted during the transfer process. Extension spring 6 limits the upward stroke of movable square cylinder 7 to prevent movable square cylinder 7 from falling off from sleeve pipe 1 .

Example 2

On the basis of Embodiment 1, the lower end of the sleeve 1 is connected to an annular collar 2, the inner diameter of the collar 2 matches the outer diameter of the mouth of the sampling bottle, and the collar 2 is set outside the mouth of the sampling bottle.

The collar 2 is set on the mouth of the sampling bottle to further prevent air from entering the sampling bottle to prevent contamination of the sample.

Example 3

On the basis of the above-mentioned embodiments, a plurality of liquid level sensors 3 are installed on the outer wall of the lower end of the sampling suction pipe 8; the liquid level sensors 3 are connected to the signal acquisition device through cables. When taking samples of invisible light, through the monitoring of the liquid level sensor 3, the sampling starts when it enters the liquid surface, so as not to enter the sample too deep, causing the risk of contamination, and can also prevent sampling before reaching the sample, resulting in sampling failure. Avoid invalid sampling.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Any equivalent replacement or change of the new technical solution and its improved concept should be covered by the protection scope of the present utility model.

Claims (3)

1. immunoassay check sampling pipe, it is characterised in that：It is foursquare activity including cylindric sleeve pipe (1) and cross section Square tube (7), described activity square tube (7) lower end is hinged with seal head (9), and described seal head (9) is sealed by four trianglees Piece is constituted, and the base of four triangle diaphragm seals is hinged on the four edges of the lower port of activity square tube (7) respectively by hinge, Hinge carry spring, spring force oppress triangle diaphragm seal to activity square tube (7) lower port center draw in, adjacent three The side of angular diaphragm seal mutually closes up, and forms the seal head of a tetrahedral structure；

Sleeve pipe (1) upper and lower ends have respectively upper sealing-plug (5) and a lower sealing-plug (4), upper sealing-plug (5) and lower sealing-plug (4) Circumferential lateral surface is the face of cylinder, and on the inwall of sleeve pipe (1), there is square the centre of upper sealing-plug (5) and lower sealing-plug (4) Hole, hole is in sealing contact with activity square tube (7) outer wall；

Extension spring (6) is installed between outer wall at the top of the top of described sleeve pipe (1) and activity square tube (7)；Extension spring (6) is limited lives Dynamic square tube (7) stroke upwards；

Described activity square tube (7) inner chamber is also equipped with sampling pipette (8), and activity square tube (7) inner cavity top has sealing ring, sealing Circle endoporus is in sealing contact with sampling pipette (8) outer wall；The lower end of described sampling pipette (8) is provided with made by hard material inhales Mouth (10), sampling pipette (8) is descending, and suction inlet (10) backs down the multi-disc triangle diaphragm seal of seal head (9)；Described sampling is inhaled There is length scale on pipe (8) outer wall.

2. the immunoassay check sampling pipe described in a claim 1, it is characterised in that：The set of sleeve pipe (1) lower end connection annular Mouth (2), the described internal diameter of running-on (2) and the bottleneck external diameter of sampling bottle thinks matching, and running-on (2) is enclosed within outside the bottleneck of sampling bottle.

3. immunoassay check sampling pipe according to claim 1 and 2, it is characterised in that：Under described sampling pipette (8) The outer wall at end is also equipped with multiple liquid level sensors (3)；Liquid level sensor (3) is connected by cable with signal pickup assembly.