CN203414294U

CN203414294U - Disposable sample collection tube

Info

Publication number: CN203414294U
Application number: CN201320567587.5U
Authority: CN
Inventors: 胡强
Original assignee: Sichuan Orienter Biotechnology Co Ltd
Current assignee: Sichuan Orienter Biotechnology Co Ltd
Priority date: 2013-09-13
Filing date: 2013-09-13
Publication date: 2014-01-29
Anticipated expiration: 2023-09-13

Abstract

The utility model discloses a disposable sample collection tube which is mainly used for solving the problems in the prior art that a sample is very easily polluted and the test result is affected due to the fact that sampling is carried out by adopting a plastic cup, the sampled amount cannot be constant and the sample is subjected to open type treatment. The disposable sample collection tube comprises a tube body, a tube spoon and a quantitative scraping plate, wherein the interior of the tube body is provided with a hollow cavity, a tube cover is arranged at the top of the tube spoon, the tube spoon can be in rotary connection with the top of the tube body through the tube cover, and the quantitative scraping plate is used for scraping superfluous sampled sample; a partition plate with a flow through hole is arranged at the lower end of the tube body, the interior of the tube body is partitioned into an upper hollow cavity and a lower hollow cavity by the partition plate, the tube spoon is arranged in the upper hollow cavity, a lower rubber plug matched with the lower hollow cavity is arranged in the lower hollow cavity and is provided with a sample collection chamber which is communicated with the upper hollow cavity through the flow through hole. According to the disposable sample collection tube, the structure is compact, the design is reasonable, the cost is low, and a filter core is convenient to replace, so that the disposable sample collection tube is applicable to popularization and application.

Description

Disposable specimen harvester pipe

Technical field

The utility model relates to a kind of sample collection equipment, specifically, relates to a kind of disposable specimen harvester pipe.

Background technology

In medical test industry, automation equipment can replace the manual operation that the overwhelming majority is loaded down with trivial details, than artificial, the check speed of automation equipment is faster, efficiency is higher, assay is more accurate, high conformity, effectively avoided biochemical pollution and personal error, therefore, be widely applied.Yet, for the automation equipment of medical test, appoint and so have many unsatisfactory places at present, such as: device structure is complicated, operation is loaded down with trivial details etc.

Sample collection is the important step in medical test, in prior art, collection for sample mainly adopts plastic cup to sample, mainly there is following defect in it: one, plastic cup sampling is not good enough to the sealing of sample, and liquid feeding is all open with mixing, very large on the accuracy impact of assay; Two, the more difficult control of amount of sampling sample, cannot accomplish quantitative sampling.

Therefore, research and develop a kind of good seal performance, simple to operate, sampling equipment that can quantitative sampling, just become those skilled in the art's important topic.

Utility model content

The purpose of this utility model is to overcome above-mentioned defect, a kind of compact conformation, reasonable in design, good seal performance is provided, realizes disposable specimen harvester pipe easily.

To achieve these goals, the technical solution adopted in the utility model is as follows:

Disposable specimen harvester pipe, comprises that inside has the body of cavity, the pipe spoon that top is provided with pipe lid and can be connected with body rotary-top by this pipe lid, and for scraping off the quantitative scraper plate of unnecessary sampling sample; Wherein, described body lower end is provided with the dividing plate with flowing hole, this dividing plate is upper and lower two cavitys by body interior separation, described pipe spoon is built in upper cavity, in lower cavity, be provided with the bottom plug mating with it, and offer the collection well being communicated with upper cavity by flowing hole on this bottom plug.For fear of bottom plug, drop, conventionally in the bottom of bottom plug, plug snap ring is set, bottom plug is stuck in body securely.For the ease of sampling, the middle part hollow of plug snap ring, exposes bottom plug.

Further, described pipe spoon comprises the scoop tube of cylindrical and hollow, the inner passage that is arranged at scoop tube bottom and is communicated with it, and be vertically arranged at end, inner passage and be the spoon portion of spill, the bottom of this spoonful of portion is at least provided with a micropore, and spoon portion is communicated with inner passage by this micropore; In scoop tube, be provided with successively top cement plug and have the interior plug of cavity from top to bottom, top cement plug and interior rubber plug combination also form hollow structure between the two, and top cement plug and interior plug all embed in scoop tube.On this basis, through hole can be offered in the centre of pipe lid, so that the top cement plug in it is out exposed.

As a kind of optimal way, the described shape of prelaminar part and the form fit of spoon portion opening of quantitatively scraping, and quantitatively scraper plate is clipped on both sides, inner passage by clamp jaws.

In order to reach best sealing effectiveness, in described scoop tube external wall of upper portion, be provided with ring groove, and in this ring groove, grommet type seals be installed; In the external wall of upper portion of described body, be provided with external thread, in described pipe lid, be provided with the internal thread mating with this external thread, pipe lid screwed by internal thread and externally threaded cooperation with body.

For the residue filter of interference test result is fallen, between described bottom plug and dividing plate, be provided with filter screen.

Further, the top of described interior plug is at least provided with a breach, is at least provided with a pore that position is corresponding with breach on described scoop tube.

Further, for easy to assembly, on interior plug, has the pore conducting on a breach and scoop tube at least, specifically, breach quantity and distribution, pore quantity and distribution should meet: interior plug circumferencial direction rotates arbitrarily, all can guarantee breach and pore conducting.

In order better to realize the utility model, on the outer wall of described scoop tube, be also vertically provided with at least two perpendicular to the muscle of its outer wall, on the inwall of body, be vertically provided with for keeping out the block reinforcement of scoop tube outer wall.In one embodiment, the muscle on scoop tube outer wall comprises short muscle and long muscle, when short muscle is used for packing body into, prevents that pipe spoon is crooked, and long muscle, for coordinating with block reinforcement, is kept out the long muscle of scoop tube outer wall by block reinforcement.

Following four aspect problems have mainly been considered in inventive concept of the present utility model:

One, the convenience of quantitative collection sample

Unique design pipe spoon, utilizes spoon portion to ladle out sample; Meanwhile, coordinate quantitative scraper plate to use, unnecessary sample strikes off with scraper plate, realizes quantitative collection.

Two, avoid biochemical and pollute, guarantee the airtight of sample

Sample after collection, drops down onto body storage, and now, the quality of the sealing property between pipe spoon and body, is to determine the whether airtight key factor of sample, therefore, adopts annular O-ring seal to seal with the contact opening of body pipe spoon; , between pipe lid and body, by screw thread, spin, so that the junction of pipe lid and body is sealed, the effect of secondary seal is much better than single seal approach, has realized the sealing that sample is stored in body meanwhile.

Three, under airtight condition, carry out sample liquid feeding, mix, sample

Liquid feeding, the sealing effectiveness that mixes, samples are also the key factors that affects assay, the liquid feeding of existing open (operating under non-closed environment), mix, sample obviously inadvisable, the utility model is design inner passage in pipe spoon, plug is installed on pipe spoon top, liquid feeding pin/aerating pin inserts plug, liquid or gas, in the sample in the injecting sample collecting chamber of inner passage, are realized under closed environment sample liquid feeding; Sampling is taked from body bottom, first, blocks the lower cavity of body with bottom plug, on bottom plug, offer collection well, sample collection, in bottom plug, then inserts bottom plug to collection well with sampling probe, realizes the sampling operation under closed environment.

Four, the gas penetration potential of liquid feeding under airtight condition

Known, under closed environment, liquid feeding must occupy the natural scale in body, and liquid or gas enter the volume in body, must need to discharge to outside the gas of equal volume in body, therefore, the utility model will be designed to hollow structure after the top cement plug on pipe spoon top and interior rubber plug combination, meanwhile, and the inner hollow of interior plug, ventilative pin inserts in the cavity of interior plug, outwards exhaust.

Compared with prior art, the beneficial effects of the utility model are:

(1) the utility model design is ingenious, simple in structure, realization is convenient.

(2) the utility model adopts annular O-ring seal to seal with the contact opening of body pipe spoon; , between pipe lid and body, by screw thread, spin, so that the junction of pipe lid and body is sealed, the effect of secondary seal is much better than single seal approach meanwhile, has avoided the biochemistry of sample to pollute.

(3) in the utility model, between scoop tube and spoon portion, be provided with inner passage, simultaneously, interior plug and top cement plug are arranged in scoop tube and constitute hollow structure, interior plug and top cement plug are divided into two cavitys by scoop tube inside, one is the cavity of interior plug, one is the cavity that interior plug bottom and scoop tube bottom surround, and this cavity is communicated with inner passage and is communicated with spoon portion by micropore, the cavity of interior plug is as the outer row's of internal gas flow passage, the cavity that interior plug bottom and scoop tube bottom surround is as liquid feeding in body, mix the passage of gas, on the one hand, reduce sample adhesion on pipe spoon and mix inadequate situation, on the other hand, the operation that realized sample liquid feeding, mixes is all carried out under the environment of sealing, has effectively guaranteed the accuracy of sample.

(4) the utility model is divided into upper and lower two cavitys by body, and upper cavity is for tubulature spoon, and lower cavity is built-in with bottom plug, and the volume of bottom plug mates lower cavity completely, has guaranteed the sealing of body lower end; Meanwhile, offer collection well on bottom plug, collecting sample is all collected in Nei，Gai chamber, this chamber also as sampling cavity, adopts sampling probe to insert in chamber and can realize sampling, has avoided sample contaminated, affects assay.

(5) also ad hoc in the utility model have a quantitative scraper plate, quantitatively after scraper plate assembling, both sides by clamp jaws clip in inner passage, during use, first take off quantitative scraper plate, spoon portion has ladled out after sample, with quantitative scraper plate, scrape off unnecessary sample, quantitatively scraper plate is discardable, not only easy to use after hanging, and guaranteed that sample taken amount is constant, reach the object of quantitative sampling.

(6) the utility model is also provided with filter screen between bottom plug and dividing plate, and the sample that spoon portion gathers, before flowing hole flow to sample sampling cavity, is fallen the residue filter in it by filter screen, prevents that the residue in sample from affecting qualification result.

(7) the utility model compared with prior art, not only possesses novelty and creativeness, and its material is common material, cheap, possesses very high practicality and the market competitiveness, for it, applies on a large scale, has established solid foundation.

Accompanying drawing explanation

Fig. 1 is explosive view of the present utility model.

Fig. 2 is the structural representation after the utility model has assembled.

Fig. 3 is internal view of the present utility model.

Fig. 4 is the schematic internal view of the utility model middle tube body.

Wherein, the corresponding title of Reference numeral: 1-manages spoon, 2-body, and 3-manages lid, 4-bottom plug, 5-grommet type seals, the quantitative scraper plate of 6-, 7-filter screen, 8-plug snap ring;

11-scoop tube, 12-inner passage, 13-spoon portion, 14-top cement plug, plug in 15-, 21-flowing hole, 22-dividing plate, 23-block reinforcement, 24-positioning bar, 41-collection well, 61-clamp jaws;

111-pore, 112-muscle, 113-ring groove, the long muscle of 114-, 131-micropore, 151-breach.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail.Embodiment of the present utility model includes but not limited to the following example.

Embodiment

As shown in Figures 1 to 4, the present embodiment provides a kind of disposable specimen harvester pipe, comprises pipe spoon 1 and body 2 two large divisions, the top of pipe spoon 1 is provided with one with its clamping and can covers 3 by counterrotating pipe, and body hollow, during assembling, pipe spoon packs in body, and pipe lid screws with the top of body.Further, compactedness in order to ensure the two connection, the present embodiment adopts the seal form of two-stage sealing, primary seal: be provided with external thread in the external wall of upper portion of body 2, pipe covers in 3 and is provided with the internal thread mating with this external thread, and pipe covers 3 by screwing internal thread and externally threaded cooperation with body 2; Secondary seal: offer ring groove 113 on pipe spoon top, and in this ring groove, grommet type seals 5 is installed, O-ring seal effect is pipe spoon to seal with the contact opening of body.

Between pipe spoon and body, by pipe, cover the mode screwing, also should possess following structure: on pipe spoon 1 outer wall, be also vertically provided with at least two perpendicular to the muscle 112 of its outer wall, muscle comprises short muscle and long muscle 114, when short muscle is used for packing body into, prevent that pipe spoon is crooked; On the inwall of body 2, be vertically provided with for keeping out the block reinforcement 23 of the long muscle of scoop tube outer wall.Muscle protrudes from the outer wall of pipe spoon, and block reinforcement protrudes from the inwall of body.Based on said structure, between pipe spoon and body, by pipe, cover the mode screwing as follows: swivelling pipe lid, now Guan Gai is synchronized with the movement with pipe spoon, long muscle on pipe spoon sidewall touches after the block reinforcement in body, pipe spoon stops the rotation, because pipe spoon can rotate relatively with pipe lid, therefore, pipe lid continues rotation, until it is tightened.Open pipe lid, step and the action relationships of take-off pipe spoon are contrary to the above.

In order to realize the sampling operation under air-proof condition, the lower end of the present embodiment middle tube body is provided with the dividing plate 22 with flowing hole 21, this dividing plate 22 is upper and lower two cavitys by body 2 interior separations, pipe spoon 1 is built in upper cavity, in lower cavity, be provided with the bottom plug 4 mating with it, and on this bottom plug 4, offer the collection well 41 being communicated with upper cavity by flowing hole 21, as preferably, bottom plug should block the lower cavity of body completely.Further, for fear of bottom plug, drop, in its bottom, be also provided with plug snap ring 8, plug snap ring middle part hollow out, exposes the bottom of bottom plug.During sampling, adopt sampling probe to insert in chamber and can realize sampling, avoided sample contaminated, affect assay.Further, the present embodiment is also provided with filter screen between bottom plug and dividing plate, and the sample of collection, before flowing hole flow to sample sampling cavity, is fallen the residue filter in it by filter screen, prevents that the residue in sample from affecting qualification result.

Pipe spoon comprises the scoop tube 11 of cylindrical and hollow, the inner passage 12 that is arranged at scoop tube 11 bottoms and is communicated with it, and be vertically arranged at 12 ends, inner passage and be the spoon portion 13 of spill, the bottom of this spoonful of portion 13 is at least provided with a micropore 131, and spoon portion 13 is communicated with inner passage 12 by this micropore 131; In scoop tube 11, be provided with successively top cement plug 14 and have the interior plug 15 of cavity from top to bottom, top cement plug 14 and interior plug 15 constitute hollow structure; Usually, the volume of interior plug 15 mates with scoop tube substantially, and interior plug 15 embeds in scoop tube 11, and after the two is connected, interior plug can be realized and block scoop tube completely.

The clamping of pipe spoon and pipe lid and can counterrotating implementation structure as follows: offer draw-in groove on the face that top cement plug covers towards pipe, in the lid of pipe lid, the position corresponding with this draw-in groove is provided with protruding card, after the two clamping, realize pipe spoon and manage the clamping of lid and can relatively rotate.In the present embodiment, only illustrate; the clamping that pipe spoon and pipe cover and can counterrotating implementation; should be noted that; this implementation in the prior art; very ripe, those skilled in the art are understanding under the prerequisite of its structural principle, can do corresponding adjustment or improvement; but these adjustment or improvement also should be included in protection domain of the present utility model.

The shape of spoon portion is " recessed " shape, in the middle of it, should cave in, and formation can be held the chamber of sample, and its face shaping can arbitraryly arrange, and is not particularly limited, and in accompanying drawing, to the shape of spoon portion, should not limit protection domain of the present utility model.Spoon portion is used for ladling out sample, when the unnecessary collection capacity of sample, can utilize quantitative scraper plate 6 that unnecessary sample is struck off.Quantitatively scraper plate 6 comprises the plate of scraping of scraper plate handle and front portion thereof, and the shape of scraping plate is mated with the opening shape of spoon portion, and after having assembled, quantitatively scraper plate is by the both sides of fastener 61 clips and inner passage, and specifically, this fastener is arranged on scraper plate handle.

Step by the utility model collecting sample is as follows:

One, hold with a firm grip and swivelling pipe lid, by pipe, cover pipe spoonful is taken out in body;

Two, take off quantitative scraper plate;

Three, pipe spoon is stretched into sample, by spoon, sample is ladled out by portion, with quantitative scraper plate, unnecessary sample is wiped off from spoon portion;

Four, after unnecessary sample strikes off, quantitatively scraper plate abandons, and then collection is had the pipe spoon of sample to put into body, then screws pipe lid;

Five, sample falls in the collection well of bottom plug by flowing hole from spoon portion.

Muscle and grommet type seals are all arranged on scoop tube, interior plug and top cement plug are divided into two cavitys by scoop tube inside, one is the cavity of interior plug, one is the cavity that interior plug bottom and scoop tube bottom surround, and this cavity is communicated with inner passage and is communicated with spoon portion by micropore, the cavity of interior plug is as the outer row's of internal gas flow passage, the cavity that interior plug bottom and scoop tube bottom surround as liquid feeding in body, mix the passage of gas.

Further, as a kind of preferred version, especially when interior plug blocks scoop tube completely, the present embodiment is at least provided with a breach 151 on the top of interior plug 15, on scoop tube 11, be at least provided with a pore 111 that position is corresponding with breach 151, as preferably, for easy to assembly, breach quantity and distribution, pore quantity and distribution, make any rotation of interior plug circumferencial direction all can guarantee breach and pore conducting.

The effect of above-mentioned top cement plug, interior plug, breach, pore is to form to the passage of liquid feeding in pipe or aerating, and by the passage of exhaust outside pipe in pipe, concrete is achieved as follows:

Before liquid feeding or aerating

In from pipe lid to pipe spoon, insert the vent wire of hollow and liquid feeding pin/add air tube, wherein, it is outside that the upper end of vent wire is positioned at pipe lid, its lower end is inserted in the cavity of interior plug, it is outside that the upper end of liquid feeding pin/add air tube is positioned at pipe lid, and its lower end is inserted to outside interior plug bottom, and extends to scoop tube; Now, vent wire---interior plug cavity---breach---pore, four realized in pipe and being communicated with of tube pressure;---------micropore---spoon portion---flowing hole has formed to the passage of sample collection chamber liquid feeding in bottom plug or aerating liquid feeding pin/add air tube in inner passage in scoop tube bottom.Because of the needs of contact pin, as preferably, the middle part of pipe lid can adopt the structure of hollow, and the top cement plug under is directly out exposed, so that contact pin.

Liquid feeding or aerating

To liquid feeding pin/add, in air tube, add liquid or gas, liquid or gas are along liquid feeding pin/add air tube to flow to inner passage, and by micropore, from inner passage, flow to a spoonful portion, then flow in the collection well of bottom plug, to add the path of liquid or gas as follows: scoop tube bottom---inner passage---micropore---spoon portion---flowing hole; Meanwhile, gas flow in the cavity of interior plug by the breach on pore and interior plug in body, then it is outside by vent wire, to flow to pipe lid, exhaust pathway is as follows: pore---breach---interior plug cavity---vent wire.

In order to make the utility model to be connected location with other machineries or parts mechanically, the present embodiment endways positioning bar 24 being provided with perpendicular to tube body wall also on the outer wall of body.

The utility model is not only an independent technical scheme, and the overall plan being comprised of a plurality of cases, and each embodiment is all a kind of set-up modes, and each embodiment is all one of the technical solution of the utility model.

According to above-described embodiment, just can realize well the utility model.What deserves to be explained is; under prerequisite based on above-mentioned design concept; for solving same technical matters; even if some that make on architecture basics disclosed in the utility model are without substantial change or polishing; the essence of the technical scheme adopting is still the same with the utility model, therefore it also should be in protection domain of the present utility model.

Claims

1. disposable specimen harvester pipe, it is characterized in that, comprise that inside has the body of cavity (2), the pipe spoon (1) that top is provided with pipe lid (3) and can be connected with body (2) rotary-top by this pipe lid (3), and for scraping off the quantitative scraper plate (6) of unnecessary sampling sample; Wherein, described body (2) lower end is provided with the have flowing hole dividing plate (22) of (21), this dividing plate (22) is upper and lower two cavitys by body (2) interior separation, described pipe spoon (1) is built in upper cavity, in lower cavity, be provided with the bottom plug (4) mating with it, and on this bottom plug (4), offer the collection well (41) being communicated with upper cavity by flowing hole (21).

2. disposable specimen harvester pipe according to claim 1, it is characterized in that, described pipe spoon (1) comprises the scoop tube (11) of cylindrical and hollow, the inner passage (12) that is arranged at scoop tube (11) bottom and is communicated with it, and be vertically arranged at (12) end, inner passage and be the spoon portion (13) of spill, the bottom of this spoonful of portion (13) is at least provided with a micropore (131), and spoon portion (13) is communicated with inner passage (12) by this micropore (131); In scoop tube (11), be provided with successively top cement plug (14) and there is the interior plug (15) of cavity from top to bottom, top cement plug (14) and interior plug (15) group are incorporated in and between the two, form hollow structure, and top cement plug (14) and interior plug (15) embed in scoop tube (11).

3. disposable specimen harvester pipe according to claim 2, is characterized in that, the described shape of prelaminar part and the form fit of spoon portion (13) opening of quantitatively scraping, and quantitatively scraper plate is clipped on both sides, inner passage (12) by clamp jaws (61).

4. disposable specimen harvester pipe according to claim 2, is characterized in that, in described scoop tube (11) external wall of upper portion, is provided with ring groove (113), and grommet type seals (5) is installed in this ring groove.

5. disposable specimen harvester pipe according to claim 2, it is characterized in that, in the external wall of upper portion of described body (2), be provided with external thread, in described pipe lid (3), be provided with the internal thread mating with this external thread, pipe lid (3) screwed by internal thread and externally threaded cooperation with body (2).

6. disposable specimen harvester pipe according to claim 2, is characterized in that, between described bottom plug (4) and dividing plate (22), is provided with filter screen (7).

7. disposable specimen harvester pipe according to claim 2, it is characterized in that, the top of described interior plug (15) is at least provided with a breach (151), is at least provided with the position pore (111) corresponding with breach (151) on described scoop tube (11).

8. disposable specimen harvester pipe according to claim 7, is characterized in that, has the pore conducting on a breach and scoop tube on described interior plug (15) at least.

9. disposable specimen harvester pipe according to claim 2, it is characterized in that, on the outer wall of described scoop tube (11), be also vertically provided with at least two muscle perpendicular to its outer wall (112), on the inwall of body (2), be vertically provided with for keeping out the block reinforcement (23) of scoop tube (11) outer wall.