Specimen concentrator

Abstract

The utility model discloses a specimen concentrator, which belongs to the field of medical detection and comprises a membrane carrier and a sampling cylinder, and a microfiltration membrane is arranged at the lower end of the membrane carrier; one end of the sampling barrel is open, a rubber plug is arranged at the open position, the internal pressure intensity of the sampling barrel is smaller than the air pressure intensity, a groove matched with the sampling pipe is formed in the rubber plug, the sampling pipe is arranged on the sampling part and communicated with a flow channel in the sampling part, and the lower end of the flow channel is open. The utility model aims to provide a specimen concentrator which can reduce the cost of cell and bacterium detection.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical detection field, concretely is a specimen concentrator. BACKGROUND

[0002] When the cell, bacteria detection is carried out in the application such as the filtration membrane (microporous filter membrane) of the patent of the announcement number CN102580548B, needs to be detained the bacteria, cell with the technical means of the patent of the announcement number CN106248978B etc. Subsequently, the microporous filter membrane is fixed on the glass slide with the technical scheme of the patent of the announcement number CN108760458B etc. So as to carry out the follow-up operation such as microscopy. It can be seen that under the prior art framework, the cell, bacteria detection is carried out with the microporous filter membrane, not only the equipment cost is higher, and the strict requirement of detection place is also proposed, leads to the detection cost of microporous filter membrane to be higher, this limits the wide popularization and application of microporous filter membrane technology to some extent. CONTENT OF UTILITY MODEL

[0003] The utility model aims at above -mentioned problem, provides a specimen concentrator, can reduce the cost of cell, bacteria detection.

[0004] To realize above -mentioned purpose, the utility model adopts the technical scheme of a kind of specimen concentrator, it includes membrane carrier and sampling barrel, the membrane carrier lower end is provided with microporous filter membrane;The sampling barrel one end is open, and the open place is provided with rubber plug, the sampling barrel internal pressure is less than air pressure, the rubber plug is provided with recess that is compatible with sampling tube, the sampling tube is arranged on sampling part, and sampling tube is communicated with the flow passage in sampling part, the flow passage lower end is open.

[0005] Further, the sampling part lower end is provided with counterbore, the flow passage lower end open place is located at the bottom of counterbore, and the sampling area is enlarged by counterbore.

[0006] Further, the sampling part lower end is provided with the support part for supporting microporous filter membrane, the support part is provided with channel at intervals on the support part, when specimen is extracted by negative pressure, the support part is pressed against microporous filter membrane, to avoid the rupture of microporous filter membrane.

[0007] Further, sampling part is made of soft glue material or the outside of sampling part is covered with soft glue layer, the soft glue has certain elastic property, to ensure that sampling part and membrane carrier can be sealedly connected, and the friction between sampling part and membrane carrier is increased by soft glue, to avoid that membrane carrier falls off from sampling part.

[0008] Further, the outside of sampling part or the outside of sampling barrel is provided with a set of baffle concentric with it, the contact area of sampling part and sampling barrel is increased by baffle, to reduce the phenomenon such as accidental touch.

[0009] The utility model discloses a beneficial effect: in the specimen suction, only need to place micropore filter membrane in the specimen, then make sampling tube puncture rubber plug, because the pressure of outside air is greater than the pressure in the sampling cylinder, under the action of negative pressure, the specimen enters the sampling cylinder, and the cell, bacteria etc. in the specimen are intercepted by micropore filter membrane, thereby quickly complete sampling, reach the purpose of reducing cell, bacteria detection cost. Such mode can separate sampling and detection. When needing, can set up a large amount of collection point quickly, and these collection points can complete the bacteria collection and preparation through relatively simple operation. Then, the specimen will be collected and detected uniformly, thereby can establish the long -term investigation mechanism of the source of infection, which not only improves the detection efficiency, but also reduces the detection cost. Meanwhile, centralized staining reading film also facilitates the statistical archiving work, ensures the detection quality. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the side view structure schematic diagram of the utility model.

[0011] Figure 2 It is the membrane carrier section view structure schematic diagram.

[0012] Figure 3 It is the sampling cylinder section view structure schematic diagram.

[0013] The text annotation in the drawing shows: 1, membrane carrier;2, micropore filter membrane;3, sampling cylinder;4, rubber plug;5, sampling tube;6, sampling part;7, flow channel;8, support part;9, baffle. DETAILED DESCRIPTION

[0014] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model is described in detail below in conjunction with the drawings, and the description in this part is only exemplary and explanatory, and should not have any limit to the protection scope of the utility model.

[0015] Example 1, as Figure 1As shown, the structure of the embodiment is: a specimen concentrator, which comprises a membrane carrier 1 and a sampling cylinder, the lower end of the membrane carrier 1 is provided with a microporous filter membrane 2, the microporous filter membrane 2 can use the filter membrane described in patent No. CN102580548A; in this embodiment, the membrane carrier 1 is a circular truncated cone structure with open upper and lower ends; the sampling cylinder 3 is open at one end, and the open end is provided with a rubber plug 4, the internal pressure of the sampling cylinder 3 is less than the air pressure, and the rubber plug 4 is provided with a groove matched with a sampling tube 5, in order to reduce the procurement cost, the sampling cylinder 3 can directly use a vacuum blood collection tube meeting the requirements, the upper end of the sampling tube 5 can be needle-shaped, the sampling tube 5 is arranged on a sampling part 6, and the sampling tube 5 is in communication with a flow channel 7 in the sampling part 6, the lower end of the flow channel 7 is open, the lower end of the sampling part 6 is provided with a counterbore, and the lower end of the flow channel 7 is open. The lower end of the opening is located at the bottom of the counterbore. The counterbore is provided with a support part 8 for supporting the microporous filter membrane 2, and the support part 8 is provided with passages at intervals. Under normal circumstances, the sampling tube 5 does not pierce the rubber plug 4, and a certain distance is provided between the rubber plug 4 and the sampling part 6.

[0016] The sampling part 6 is made of soft rubber material or the outer side of the sampling part 6 is covered with a soft rubber layer, and the soft rubber material and the soft rubber layer can be made of silica gel, rubber or the like. The outer side of the sampling part 6 or the outer side of the sampling cylinder 3 is provided with a ring of baffles 9 concentric with it, in this embodiment, a ring of baffles 9 concentric with the upper end of the sampling part 6 is described, the lower end of the sampling cylinder 3 is inserted into the space enclosed by the baffles 9, and the outer diameter of the lower end of the sampling cylinder 3 is matched with the inner diameter of the baffles 9.

[0017] Specific use method: after collecting the specimen and inactivating, the membrane carrier 1 is installed on the sampling part 6, after the sampling part 6 and the membrane carrier 1 are assembled, the lower end of the support part 8 will abut against the upper end of the microporous filter membrane 2. Then the microporous filter membrane 2 is immersed in the specimen, the sampling tube 5 pierces the rubber plug 4 by pushing the sampling cylinder 3 downward, at this time the sampling cylinder 3 is in communication with the outside world, under the action of negative pressure, the specimen is extracted into the sampling cylinder 3, and the cells and bacteria in the specimen are intercepted on the microporous filter membrane 2, thereby completing the extraction of the specimen. Then the microporous filter membrane 2 is transferred to a glass slide to complete the preparation of the specimen. The sampling and detection are separated, a large number of collection points can be set as needed, the collection points can complete the collection of bacteria sampling with relatively simple operation, and a long-term investigation mechanism of the source of infection is established, and then unified collection and detection are performed, so as to improve the detection efficiency and reduce the detection cost.

[0018] It should be noted that in this document, the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or inherent to such a process, method, article or device.

[0019] The principle and implementation mode of the present application are described by using specific examples herein, and the above examples are only used for helping to understand the method and core idea of the present application. The above description is only the preferred implementation mode of the present application, and it should be pointed out that due to the limited expression, there are unlimited specific structures in objective, and for ordinary skilled persons in the technical field, some improvements, decorations or changes can be made without departing from the principle of the present application, and the above technical features can be combined in a proper way; the improvements, decorations, changes or combinations, or the direct application of the concept and technical solution of the present application to other occasions without improvement, should be regarded as the protection scope of the present application.

Claims

1. A specimen concentrator, comprising: The sampling device comprises a membrane carrier (1) and a sampling cylinder (3), the lower end of the membrane carrier (1) is provided with a microporous filter membrane (2), one end of the sampling cylinder (3) is open, and the open end is provided with a rubber plug (4), the internal pressure of the sampling cylinder (3) is less than the air pressure, the rubber plug (4) is provided with a groove matched with a sampling tube (5), the sampling tube (5) is arranged on a sampling part (6), and the sampling tube (5) is communicated with a flow channel (7) in the sampling part (6), and the lower end of the flow channel (7) is open.

2. A specimen concentrator according to claim 1, wherein The lower end of the sampling part (6) is provided with a counterbore, and the open end of the flow channel (7) is located at the bottom of the counterbore.

3. The specimen concentrator of claim 1, wherein The lower end of the sampling part (6) is provided with a support part (8) for supporting the microporous filter membrane (2), and channels are arranged at intervals on the support part (8).

4. The specimen concentrator of claim 1, wherein The sampling part (6) is made of soft rubber material or the outer side of the sampling part (6) is covered with a soft rubber layer.

5. The specimen concentrator of claim 1, wherein, The outer side of the sampling part (6) or the outer side of the sampling cylinder (3) is provided with a baffle (9) concentric with the sampling part (6) or the sampling cylinder (3).

Images