CN218035951U

CN218035951U - Sample processing device with piston structure

Info

Publication number: CN218035951U
Application number: CN202221718095.7U
Authority: CN
Inventors: 彭勋楷
Original assignee: Hunan Tech New Medical Systems Co ltd
Current assignee: Hunan Tech New Medical Systems Co ltd
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2022-12-13
Anticipated expiration: 2032-07-04

Abstract

The utility model discloses a sample processing device with a piston structure, which belongs to the field of medical detection and comprises a cup body, wherein one end of the cup body is provided with a sampling hole which is matched with a plugging part; a piston matched with the inner wall of the cup body is arranged in the cup body, and the piston is connected with the drawing part at one end opposite to the sampling hole. The utility model aims at providing a sample processing apparatus with piston structure can act as the container of the transfer instrument of sample and sample digestion to utilize the characteristic that the piston can freely move about, make the inside pressure of container remain stable.

Description

Sample processing device with piston structure

Technical Field

The utility model relates to a medical treatment detection area specifically is a sample processing apparatus with piston structure.

Background

When a sample is clinically detected, the sample is generally required to be pretreated such as digested so as to achieve the effects of inactivating harmful pathogens in the sample and removing interfering substances, and after the pretreatment is finished, a container is opened to take out the treated sample for subsequent processes such as filtering, dyeing and sample preparation.

The containers used in pretreatment are generally classified into open type or closed type, and harmful organism aerosol and the like are easily generated in the processes of pretreatment, digestion and the like in the open type containers, so that great biological safety risk is caused. If the method is carried out in a closed container, the pressure inside the container can be increased by gas generated in the reaction process, so that when the cover is opened, high-pressure harmful gas in the container can be accompanied by quick spraying of harmful liquid, and further, the biological safety risk can be caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at above problem, provide a sample processing apparatus with piston structure, can act as the container of the transfer instrument of sample and sample digestion to utilize the piston can the free activity's characteristic, make the inside pressure of container remain stable.

In order to realize the above purpose, the utility model adopts the technical scheme that: the portable cup comprises a cup body, wherein a sampling hole is formed in one end of the cup body and is matched with a blocking part; the cup body is internally provided with a piston matched with the inner wall of the cup body, the piston is connected with the drawing part at the opposite end of the sampling hole, and when the piston moves to the far end of the sampling hole, a sample can enter the cup body through the sampling hole.

Furthermore, be provided with the sampling tube with the thief hole intercommunication on the cup, the sampling tube extends to the cup outside to conveniently draw the sample from the less container in the entry.

Further, in order to avoid in the sampling process, impurity enters into the cup, be provided with the filter plate in the thief hole.

Furthermore, after the sampling is completed, the vibration or centrifugal operation is generally needed to be carried out so as to improve the pretreatment efficiency of digestion and the like, so that in order to avoid shaking or adapting various instruments in the pretreatment process, the plugging part is arranged on the sealing cover, the sealing cover is detachably connected with the cup body, and the contact surface between the sealing cover and an instrument clamp is increased.

Furthermore, for the convenience of assembly, one end of the cup body opposite to the sampling hole is set to be an open end.

Furthermore, be provided with the limiting plate on the open end inner wall to prevent at processes such as vibration, the piston throws away from in the cup.

Furthermore, the cup further comprises a rear cover used for blocking the open end, and a through hole matched with the drawing part is formed in the rear cover so as to prevent the piston from being thrown out of the cup body in the vibration process and the like.

Furthermore, a circle of clamping grooves are formed in the end face of the cup body on one side of the open end, the clamping grooves are matched with the filter membrane, and after pretreatment is completed, the cup body can be directly used for dyeing and other operations.

The utility model has the advantages that: the cup body with the piston can be used as a container for liquid transfer and pretreatment such as digestion, so that loss is saved; in the pretreatment process, the sample is in a closed constant-pressure environment, so that biological hazards and the like caused by the leakage of aerosol are effectively prevented, and the risk caused by the increase of the internal pressure in the container due to the reaction is reduced by utilizing the characteristic that the piston can freely move.

Drawings

Fig. 1 is a schematic structural view of embodiment 1.

Fig. 2 is a schematic structural view of embodiment 2.

Fig. 3 is a schematic structural view of embodiment 3.

Fig. 4 is a schematic structural view of embodiment 4.

FIG. 5 is a schematic structural view of example 5.

Fig. 6 is a schematic structural view of embodiment 6.

FIG. 7 is a schematic view of the pretreatment carried out in example 7.

FIG. 8 is a schematic diagram showing the structure of example 7 after completion of pretreatment.

The text labels in the figures are represented as: 1. a cup body; 2. a sampling hole; 3. a plugging section; 4. a piston; 5. a pull-out section; 6. a sampling tube; 7. filtering a plate; 8. a sealing cover; 9. an open end; 10. a limiting plate; 11. a rear cover; 12. a card slot; 13. and (4) filtering the membrane.

Detailed Description

In order to make the technical solution of the present invention better understood, the present invention is described in detail below with reference to the accompanying drawings, and the description of the present invention is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention.

Embodiment 1, as shown in fig. 1, the specific structure of this embodiment is: the sampling device comprises a cup body 1 and a plugging part 3, wherein a sampling hole 2 is formed in one end of the cup body 1, the plugging part 3 is used for sealing the sampling hole 2, and the plugging part 3 can be a rubber plug or the like or a cover-shaped structure and is fixed on the cup body 1 in a threaded connection mode, a buckle mode or the like, so that the sampling hole 2 is sealed; a piston 4 matched with the inner wall of the cup body 1 is arranged in the cup body 1, and one end, opposite to the sampling hole 2, of the piston 4 is connected with a drawing part 5.

The concrete during operation: firstly, the plugging part 3 is taken down, then the piston 4 is pushed to the side of the sampling hole 2, after a sample to be collected is mixed with pretreatment liquid such as digestive juice and the like, the sampling hole 2 is sunk under the liquid level, the piston 4 is pulled towards the far end of the sampling hole 2, and the sample enters the cup body 1 from the sampling hole 2 under the action of air pressure and the like.

After the sample is accomplished, take up the cup, fix shutoff portion 3 on cup 1, then place cup 1 and carry out the preliminary treatment on instrument and equipment such as oscillator, during the preliminary treatment, if the condition of the 1 internal pressure increase of cup appears, piston 4 can be promoted, the distance increase between piston 4 and the thief hole 2 to guarantee the pressure stability in the cup 1.

Embodiment 2 as shown in fig. 2, the other structure of this example is the same as that of embodiment 1, but in this example, the cup body 1 is provided with a sampling tube 6 communicating with the sampling hole 2, the sampling tube 6 has an outer diameter smaller than that of the cup body 1, and the sampling tube 6 extends to the outside of the cup body 1.

The concrete during operation: sampling tube 6 and cup 1 coaxial setting, only need during the sample with sampling tube 6 stretch into the sample can, its purpose is in order to use the less sample storage container of opening.

Embodiment 3, as shown in fig. 3, the other structure of this example is the same as that of embodiment 1, but in this example, a filter plate 7 is provided in the sampling hole 2, and a hole is provided in the filter plate 7.

The concrete during operation: the embodiment is mainly used for detecting cells or bacteria such as worm eggs and escherichia coli, and most samples are feces and the like and contain more undigested residues and the like; a filter plate 7 is provided at the sampling hole 2 in order to intercept the residue with large particles.

Embodiment 4 as shown in fig. 4, the other structure of this example is the same as the above embodiment, but in this example, the blocking portion 3 is provided on a sealing cover 8, and the sealing cover 8 is detachably connected to the cup body 1.

When the concrete work: after a sample enters the cup body 1, as the clamps on instruments and equipment such as a vibrator are mostly in a standard cylindrical shape or other structures, in order to avoid the cup body 1 from toppling over, the plugging part 3 is arranged on the inner side of the sealing cover 8, and the sealing cover 8 is in threaded connection with the cup body 1 or in threaded connection with the sampling tube 6; then, the sealing cover 8 is tightly matched with the cup body 1 or the sampling tube 6, or is fixed on the cup body 1 in other modes; the outer diameter of the sealing cover 8 is equal to or greater than the outer diameter of the cup body 1.

Embodiment 5, as shown in fig. 5, other structures of this embodiment can refer to any of the above embodiments, but in this embodiment, the cup body 1 is provided with an open end 9 at the end opposite to the sampling hole 2; be provided with limiting plate 10 on the opening part inner wall of open end 9, limiting plate 10 accessible is sticky, mode such as integrated into one piece is fixed on 1 inner wall of cup, and limiting plate 10 is located piston 4's movement path, and its effect is in order to avoid piston 4 to be thrown away at the in-process such as vibrate.

Embodiment 6, as shown in fig. 6, the other structure of this example is the same as that of embodiment 5, but in this example, a stopper plate 10 is not provided, but a rear cover 11 is provided, the rear cover 11 is provided with a through hole adapted to the drawer 5, and the rear cover 11 is fixed to the cup body 1 by means of screw connection, tight fit, or the like.

Example 7 referring to fig. 7-8, another structure of this example can refer to example 6, but in this example, the cup body 1 is provided with a ring of slots 12 on the end surface on the side of the open end 9, and the slots 12 are matched with the filter membrane 13.

When the concrete work: after the pretreatment is completed, the stopper 3 is removed, the rear cover 11 is opened, and the piston 4 is withdrawn from the cup body 1. After the piston 4 is drawn out, the plugging portion 3 is remounted on the sampling hole 2, and then the filter membrane 13 is mounted in the clamping groove 12.

After the filter membrane 13 is mounted, the filter membrane 13 is placed on a negative pressure device with one end facing downward, and then the plugging portion 3 is removed to perform a staining slide-making operation disclosed in patents such as CN201020589123.0 and the like.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention have been explained herein using specific examples, which are presented only to assist in understanding the methods and their core concepts. The foregoing are only preferred embodiments of the present invention, and it should be noted that there are practically unlimited specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes can be made without departing from the principle of the present invention, and the technical features described above can also be combined in a suitable manner; the application of these modifications, variations or combinations, or the application of the concepts and solutions of the present invention in other contexts without modification, is not intended to be considered as a limitation of the present invention.

Claims

1. A specimen processing device with a piston structure comprises a cup body (1), and is characterized in that one end of the cup body (1) is provided with a sampling hole (2), and the sampling hole is matched with a plugging part (3); a piston (4) matched with the inner wall of the cup body (1) is arranged in the cup body (1), and the piston (4) is connected with a drawing part (5) at one end, opposite to the sampling hole (2).

2. The specimen processing device with the piston structure according to claim 1, wherein a sampling tube (6) communicating with the sampling hole (2) is provided on the cup body (1), and the sampling tube (6) extends to the outside of the cup body (1).

3. The sample processing device with a piston structure according to claim 2, wherein a filter plate (7) is provided in the sampling hole (2).

4. The specimen processing device having a piston structure according to claim 1 or 2, wherein the stopper portion (3) is provided on a seal cover (8), and the seal cover (8) is detachably attached to the cup body (1).

5. The specimen processing device having a piston structure according to claim 1 or 2, wherein the cup body (1) is provided as an open end (9) at an end opposite to the sampling hole (2).

6. The specimen processing device with a piston structure according to claim 5, wherein a limit plate (10) is provided on the inner wall of the open end (9).

7. The specimen processing device with a piston structure according to claim 5, further comprising a rear cover (11) for closing the open end (9), wherein the rear cover (11) is provided with a through-hole adapted to the drawing portion (5).

8. The specimen processing device with the piston structure according to claim 7, wherein a ring of clamping grooves (12) are formed on the end face of the cup body (1) on the side of the open end (9), and the clamping grooves (12) are matched with the filter membrane (13).