CN219663731U - Cross-contamination prevention filter element suction head - Google Patents

Abstract

The utility model provides a filter element suction head capable of preventing cross contamination, which comprises a base and a blocking component, wherein the base comprises a main pipe body, an end cover and a first pipe, an operator adopts an external disposable hose to connect the first pipe to an external suction device, and simultaneously installs a disposable hose on a corresponding second pipe, so that a channel between the corresponding first pipe and the second pipe can be used for sample extraction, then the operator extracts the second pipe together with the external disposable hose, when the sample enters the auxiliary pipe body and the main pipe body, the second pipe body and the first pipe body are separated by a second sealing baffle plate, and when the operator needs to extract and filter other samples, the operator only needs to replace the disposable hose connected with the first pipe and the second pipe, and can sample precious trace liquid in time according to the other corresponding first pipe and second pipe.

Description

Cross-contamination prevention filter element suction head

Technical Field

The utility model relates to a filter element suction head capable of preventing cross contamination, belonging to the technical field of filter element suction heads.

Background

The suction head belongs to the consumable matched with the pipettor, and is mainly made of medical-grade polypropylene materials, and when the suction head is used, the suction head is matched with the pipettor to realize liquid suction or liquid discharge of a liquid sample, so that the liquid sample is subjected to a liquid discharge process, and the suction head is widely applied to the fields of medical research, biological research, chemical laboratories and the like. After the precious trace liquid sample is prepared in a laboratory, the sample is transferred and stored by matching the automatic pipette with a filter core suction head, and the filter core suction head can be used for preventing sample liquid from flowing into the automatic pipette, and simultaneously, the possibility of cross contamination of different liquid samples is reduced.

The utility model discloses a prevent cross contamination's filter core suction head in publication No. CN217450226U, mention "its use state of inconvenient regulation filter block in this scheme, reduced the flexibility of use, be difficult to fine satisfy imbibition use needs", install filter block and filter core through the connecting axle is rotatory in this scheme simultaneously, be used for filtering impurity, be favorable to improving the security of imbibition, adjust knob is installed to connecting axle one end moreover, make through rotatory adjust knob and connecting axle, can control filter block rotatory regulation processing, thereby adjust the use state of filter block, the flexibility of use has been improved, but this technical scheme is in actual operation process, when operating personnel need carry out the interval to different samples and draw, because traditional suction head can't carry out the multiple sampling and use, thereby avoid cross contamination, precious trace liquid sampling often needs high efficiency to be high-efficient to the operating personnel sampling efficiency to change frequently, be difficult to in time carry out the sample to precious trace liquid in the experimentation.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a filter element suction head capable of preventing cross contamination so as to solve the problems in the prior art.

In order to achieve the above object, the present utility model is realized by the following technical scheme: a filter element suction head for preventing cross contamination comprises a base and a blocking component.

The base includes main body, end cover and first pipe, end cover sealing mounting in main body top, first pipe install in the end cover top, the separation subassembly includes vice body and second pipe and first sealing baffle, vice body sealing mounting in main body bottom, first sealing baffle sealing mounting in main body with the end cover inner wall, second sealing baffle sealing mounting is installed to first sealing baffle bottom, second sealing baffle sealing mounting in vice body inner wall, second pipe install in vice body bottom, first pipe with the second pipe corresponds the setting.

Further, a first sealing cover is installed at one end of the first guide pipe, and the first sealing cover is arranged corresponding to the first guide pipe.

Further, a second sealing cover is installed at one end of the second guide pipe, and the second sealing cover is arranged corresponding to the second guide pipe.

Further, a diversion trench is arranged between the first sealing partition plates.

Further, one end of the first guide pipe is inserted into the guide groove in a sealing mode.

Further, the inner wall of the diversion trench is provided with a filter screen.

The filter element suction head for preventing cross contamination has the beneficial effects that: when the device is used, an operator adopts an external disposable hose to connect and install the first conduit on external suction equipment, and simultaneously installs the disposable hose on a corresponding second conduit, so that a channel between the corresponding first conduit and the corresponding second conduit can be used for sample extraction, and then the second conduit and the external disposable hose are used for sample extraction, when the sample enters the auxiliary pipe body and the main pipe body, the second sealing partition plate and the first sealing partition plate are separated, other channels isolated by the second sealing partition plate and the first sealing partition plate cannot be polluted, when the operator needs to extract and filter other samples, the operator only needs to replace the disposable hose connected with the first conduit and the second conduit, and can carry out cross-pollution-free sampling operation according to other corresponding first conduits and second conduits, so that the sampling efficiency of the operator is ensured, and the operator can timely sample the precious trace liquid.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

FIG. 1 is a schematic diagram of a cross-contamination prevention filter cartridge tip of the present utility model;

FIG. 2 is a schematic view of a portion of a flow guide groove in a cross-contamination prevention filter cartridge cleaner head of the present utility model;

FIG. 3 is a schematic view of a portion of an end cap of a cross-contamination prevention filter cartridge cleaner head of the present utility model;

FIG. 4 is an enlarged schematic view of the cross-contamination prevention cartridge head of the present utility model at A.

In the figure: 100-base, 110-main pipe body, 111-filter screen, 120-end cover, 130-first pipe, 131-first sealing cover, 200-barrier component, 210-auxiliary pipe body, 220-second pipe, 221-second sealing cover, 230-first sealing baffle, 231-second sealing baffle, 232-guiding gutter.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

Referring to fig. 1-4, the present utility model provides a technical solution: a cross-contamination resistant filter cartridge tip includes a base 100 and a barrier assembly 200.

Referring to fig. 1 to 4, the base 100 includes a main pipe body 110, an end cap 120, and a first guide pipe 130, the end cap 120 being sealingly mounted on top of the main pipe body 110, and the first guide pipe 130 being mounted on top of the end cap 120.

In a specific embodiment, one end of the first duct 130 is mounted with a first sealing cover 131, and the first sealing cover 131 is disposed corresponding to the first duct 130.

In a specific embodiment, a second sealing cap 221 is installed at one end of the second duct 220, and the second sealing cap 221 is disposed corresponding to the second duct 220.

In a specific embodiment, a flow guide groove 232 is disposed between the first sealing partition plates 230.

In a specific embodiment, one end of the first conduit 130 is sealingly inserted into the interior of the channel 232.

In a specific embodiment, the inner wall of the diversion trench 232 is provided with a screen 111.

Referring to fig. 1-4, the barrier assembly 200 includes a secondary pipe body 210, a second conduit 220 and a first sealing partition 230, wherein the secondary pipe body 210 is mounted at the bottom of the main pipe body 110 in a sealing manner, the first sealing partition 230 is mounted at the inner walls of the main pipe body 110 and the end cover 120 in a sealing manner, the second sealing partition 231 is mounted at the bottom of the first sealing partition 230 in a sealing manner, the second sealing partition 231 is mounted at the inner wall of the secondary pipe body 210 in a sealing manner, the second conduit 220 is mounted at the bottom of the secondary pipe body 210, the first conduit 130 and the second conduit 220 are correspondingly arranged, in this scheme, the first sealing partition 230 and the second sealing partition 231 are arranged in a herringbone manner, and meanwhile, the first sealing partition 230 and the second sealing partition 231 can be replaced by a cross-like manner according to sampling requirements.

The working principle of the filter element suction head for preventing cross contamination is as follows: when in use, an operator adopts an external disposable hose to connect and install the first conduit 130 on external suction equipment, and simultaneously installs the disposable hose on the corresponding second conduit 220, so that a channel between the corresponding first conduit 130 and the corresponding second conduit 220 can be used for sample extraction, and then the second conduit 220 and the external disposable hose are used for sample extraction, when the sample enters the auxiliary conduit 210 and the main conduit 110, the second sealing partition plate 231 and the first sealing partition plate 230 are separated, the other channels isolated by the second sealing partition plate 231 and the first sealing partition plate 230 cannot be polluted, so that the isolated other channels can still be sampled, when the operator needs to extract and filter other samples, the operator only needs to replace the disposable hose connected with the first conduit 130 and the second conduit 220, so that the sampling operation without cross contamination can be performed according to the other corresponding first conduit 130 and the second conduit 220, the sampling efficiency of the operator is ensured, and the operator can timely sample the precious trace liquid.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (6)

1. A cross-contamination resistant filter cartridge tip comprising:

base (100), its characterized in that: the base (100) comprises a main pipe body (110), an end cover (120) and a first conduit (130), wherein the end cover (120) is arranged on the top of the main pipe body (110) in a sealing way, and the first conduit (130) is arranged on the top of the end cover (120);

the separation assembly (200), separation assembly (200) include vice body (210) and second pipe (220) and first sealed baffle (230), vice body (210) sealing installation is in main body (110) bottom, first sealed baffle (230) sealing installation is in main body (110) and end cover (120) inner wall, second sealed baffle (231) are installed in first sealed baffle (230) bottom sealing installation, second sealed baffle (231) sealing installation is in vice body (210) inner wall, second pipe (220) are installed in vice body (210) bottom, first pipe (130) and second pipe (220) correspond the setting.

2. A cross-contamination prevention filter tip as recited in claim 1, wherein: one end of the first conduit (130) is provided with a first sealing cover (131), and the first sealing cover (131) is arranged corresponding to the first conduit (130).

3. A cross-contamination prevention filter tip as recited in claim 1, wherein: one end of the second conduit (220) is provided with a second sealing cover (221), and the second sealing cover (221) is arranged corresponding to the second conduit (220).

4. A cross-contamination prevention filter tip as recited in claim 1, wherein: a diversion trench (232) is arranged between the first sealing partition plates (230).

5. A cross-contamination prevention filter tip as recited in claim 4, wherein: one end of the first conduit (130) is inserted into the guide groove (232) in a sealing way.

6. A cross-contamination prevention filter tip as recited in claim 4, wherein: the inner wall of the diversion trench (232) is provided with a filter screen (111).