CN202735204U

CN202735204U - Blood sedimentation tube

Info

Publication number: CN202735204U
Application number: CN 201220422602
Authority: CN
Inventors: 蒋峥嵘
Original assignee: Zhejiang Sorfa Medical Plastic Co Ltd
Current assignee: Zhejiang Sorfa Medical Plastic Co Ltd
Priority date: 2012-08-24
Filing date: 2012-08-24
Publication date: 2013-02-13
Anticipated expiration: 2022-08-24

Abstract

The utility model discloses a blood sedimentation tube. The blood sedimentation tube comprises a tube body, wherein a head cover is arranged at the lower opening end of the tube body; the bottom of the head cover wraps the end face of the lower opening end of the tube body; the bottom of the head cover is provided with a liquid inlet communicated with a tube hole of the tube body; and a liquid preventing device which can be used for exhausting air in the tube body and preventing the liquid in the tube body from erupting is installed at the upper opening end of the tube body. According to the technical scheme, the blood sedimentation tube has the following beneficial effects: the blood sedimentation tube has the advantages of simple structure, convenience in use and operation, low sample pollution risk, low manufacture cost and accuracy and reliability in detection; the rising speed of the sample liquid in the blood sedimentation tube is reduced by arranging the liquid preventing device, thus avoiding that the liquid erupts and pollutes the environment and affects detection; and as the blood sedimentation tube adopts the head cover structure, use of the materials of the tube body of the blood sedimentation tube is reduced, the manufacture cost and the manufacture difficulty are reduced and diverse choices are also provided for the materials of the tube body.

Description

A kind of blood sedimentation tube

Technical field

The utility model belongs to the blood testing apparatus field, relates in particular to for erythrocyte sedimentation rate and detects the blood sedimentation tube that uses.

Background technology

Erythrocyte sedimentation rate refers to, anticoagulation is put into blood sedimentation tube vertically leave standstill, and red blood cell is owing to density is sunk greatly.Usually with the distance expression erythrocytic settling velocity of red blood cell end sinking in first hour, be called erythrocyte sedimentation rate (ESR).

In the prior art, the blood sedimentation tube that always uses is made by the glass tube of both ends open and internal diameter 3mm.This glass tube is put on a scale every 1mm in distance one openend 20cm scope.When using the blood sedimentation tube of this kind prior art, at first must inhale by mouth and make the blood sedimentation tube decompression, in order to will be added with anticoagulant, for example, the blood that is added with 3.8% sodium citrate is sucked in the blood sedimentation tube, until till zero on the scale (basic point), or till blood being sucked 0 of the scale of blood sedimentation tube with syringe etc.After vertically being left standstill, this blood sedimentation tube measures erythrocytic sedimentation state every a set time.But, when using the blood sedimentation tube of this prior art to carry out blood sedimentation, must directly suck or use syringe that blood is sucked blood sedimentation tube till the scale zero with mouth.Although this operation simply but will skillfully and be wasted staff, be lost time, if corpse or other object for laboratory examination and chemical testing number can't be processed in the short time in many times.And in the process that Inspection carries out, medical worker may be by disease on the blood infection, and for example, the nosocomial infections such as virus hepatitis, AIDS are sick.

For this reason, publication number is that the patent documentation of CN1176387A discloses two kinds of blood sedimentation tubes, the first at internal diameter evenly and be inserted with the porous resin that ventilation body do not see through liquid in the plastic conduit of both ends open and consist of blood sedimentation tube, during use, the liquid inflow entrance side of blood sedimentation tube is inserted in the blood of blood sampling, make blood sedimentation tube (pump is inhaled or mouth is inhaled) decompression by the other end, can make whereby blood most, simultaneously, directly be drawn into the insertion position of poriness synthetic resin body, read blood post scale, can measure erythrocytic settling velocity, but this scheme is because need to inhale or mouth suction enforcement decompression by pump, so operation or loaded down with trivial details inconvenience; It two is evenly and in the plastic conduit of both ends open to be inserted with an end tool piston portion and the clava (pitch brace) longer and more soft than plastic conduit at internal diameter, during use, the blood that is added with the Anti-solidification agent is packed in the test tube, the liquid inflow entrance side of plastic conduit is inserted in the blood of test tube, piston portion is overlapped like that with the position of the liquid inflow entrance of plastic conduit to be inserted, the claval other end of pulling under this state, make the lower end of piston portion be positioned at 0 scale position of plastic conduit, read blood post scale, can measure erythrocytic settling velocity.But, this scheme pitch brace length is longer, lifting needs to remove redundance after putting in place, corresponding easily broken position generally is set so that cut off thereon, if adopt scissors to cut off not have operation convenience, if manually fracture then operating difficulties, and easily make piston portion depart from 0 scale position, affect detection accuracy.

In addition, in the prior art, the blood sample that gathers generally is to be kept in the test tube that is added with in advance anti-coagulants to shift or preservation, during detection, the liquid upstream end of blood sedimentation tube is inserted in vitro, inhale by pump again or the pitch brace operation, blood is sucked into the zero graduation position of blood sedimentation tube, then be placed on the special stand and leave standstill, in order to guarantee vertically leaving standstill of blood sedimentation tube, avoid blood sedimentation tube obliquity effects testing result, generally test tube and blood sedimentation tube need to be located respectively and be fixed on the special stand, manufacturing cost and the manufacture difficulty of special stand can be increased so undoubtedly, also the complex operation degree can be increased simultaneously.

For this reason, the inventor has designed a kind of blood sedimentation tube assembly, have simple in structure, use is easy to operate, the sample contamination risk is little, low cost of manufacture, detection wait advantage accurately and reliably.When depositing, sample liquid is closed in vitro, test tube internal medicine can be placed anti-coagulants in advance, during detection, directly the liquid upstream end with the blood sedimentation tube body inserts pipe close, bigger power can connect blind hole, body is entered tubular container inside, when blood sedimentation tube lower end headgear and liquid storing part interference fit and when continuing to enter, the effect of being squeezed of sample liquid in the liquid storing part enters the interior and rising of pore of blood sedimentation tube body, until arrive the zero graduation line position, assembly is placed on vertically leaves standstill observation on the support and get final product.The utility model relates to use therein blood sedimentation tube.

Summary of the invention

In order to solve above-mentioned technical matters, the purpose of this utility model provides a kind of blood sedimentation tube, and is simple in structure, uses easy to operately, and the sample contamination risk is little, low cost of manufacture.

To achieve the above object, the utility model has adopted following technical scheme:

A kind of blood sedimentation tube, comprise body, the sheathed headgear of the lower open end of described body, the end face of headgear bottom parcel body lower open end, and the headgear bottom is provided with the liquid inlet that is communicated with the body pore, and the upper open end of described body is installed the liquid-blocking unit that can discharge and stop for the body Air liquid ejection in the body.

The location optimization of above-mentioned liquid-blocking unit is corresponding with the zero graduation line position on the blood sedimentation tube body.

One of above-mentioned liquid-blocking unit is preferred, is the water wettability filter core, the water wettability filter core to fill in the position corresponding with the zero graduation line on the blood sedimentation tube body.When sample liquid rises to water wettability filter core place, filter core infiltrates and expands, and avoids the sample liquid ejection, and filter core has buffering effect to Bas Discharged, and it is too fast restive to avoid sample liquid to rise.

Above-mentioned liquid-blocking unit preferred two, comprise connecting pipe and end plug, the pore of connecting pipe is cut off and is separated into lower pore and upper pore, cut off central authorities and be provided with the center intubate coaxial with the connecting pipe pore, the bottom of center intubate is positioned at lower pore, the top of center intubate is positioned at pore, and the center pit of center intubate is communicated with lower pore and upper pore; The upper open end of described blood sedimentation tube body inserts in the lower pore of connecting pipe, the upper open end endoporus wringing fit of the bottom of center intubate and blood sedimentation tube body, described end plug plug is contained in the upper pore of connecting pipe, vacate airspace between the bottom of end plug and the center intubate, the bottom of end plug is provided with air hole, and the central hole location of air hole and center intubate staggers.Like this, the circuitous channel that the mouth of pipe of blood sedimentation tube body consists of via pore on intubate center pit, the connecting pipe and end plug air hole is communicated with outside, increased the Bas Discharged resistance, the ascending velocity of sample liquid in the body pore slowed down, avoid the sample liquid ejection, even there is the fraction sample liquid to surpass the zero graduation line, also can be deposited in the upper pore of connecting pipe, can not affect testing result.Further preferred, the bottom of described end plug is provided with a groove, and intubate top, described center is inserted in the groove and clearance fit with it, and the buffering effect of back-shaped like this passage is better.

As preferably, described tubular container is plastic tube, and blood sedimentation tube lower end headgear is plastic jacket, is convenient to the interference inserting.

The utility model has been owing to adopted above technical scheme, have simple in structure, use is easy to operate, the sample contamination risk is little, low cost of manufacture, detection wait advantage accurately and reliably.Liquid-blocking unit is set has slowed down the ascending velocity of sample liquid in blood sedimentation tube, avoid sample liquid ejection contaminated environment and impact to detect, and, blood sedimentation tube adopts headgear structure, reduced the use of blood sedimentation tube body material, reduce manufacturing cost and manufacture difficulty, also provide the diversity selection for the body material.

Description of drawings

Fig. 1 is the detected state synoptic diagram of embodiment 1 assembly;

Fig. 2 is the detected state synoptic diagram of embodiment 2 assemblies;

Fig. 3 is the fit structure synoptic diagram of connecting pipe and end plug;

Fig. 4 is the structural representation (overlooking) of end plug;

Fig. 5 is the fit structure synoptic diagram of tubular container and pipe close;

Fig. 6 is the structural representation (overlooking) of pipe close.

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is made a detailed explanation.

Embodiment 1:

A kind of blood sedimentation tube assembly as shown in Figure 1 comprises blood sedimentation tube and test tube.

Blood sedimentation tube as shown in Figure 1, comprise body 3, the sheathed headgear 7 of the lower open end of described body 3, the end face of headgear 7 bottoms parcel body 3 lower open ends, and headgear 7 bottoms are provided with the liquid inlet that can be communicated with body 3 pores, the upper open end of described body 3 is installed the liquid-blocking unit that can discharge and stop for body 3 Airs liquid ejection in the body 3, and the position of liquid-blocking unit is corresponding with the zero graduation line position on the blood sedimentation tube body.As shown in Figure 3, Figure 4, described liquid-blocking unit comprises connecting pipe 4 and end plug 5, the pore of connecting pipe 4 is cut off 41 and is separated into lower pore 42 and upper pore 43, cut off 41 central authorities and be provided with the center intubate 44 coaxial with connecting pipe 4 pores, the bottom of center intubate 44 is positioned at lower pore 42, the top of center intubate 44 is positioned at pore 43, and the center pit of center intubate 44 is communicated with lower pore 42 and upper pore 43; The upper open end of described blood sedimentation tube body 3 inserts in the lower pore 42 of connecting pipe 4, the upper open end endoporus wringing fit of the bottom of center intubate 44 and blood sedimentation tube body 3, described end plug 5 plugs are contained in the upper pore 43 of connecting pipe 4, vacate airspace between the bottom 51 of end plug 5 and the center intubate 44, the bottom 51 of end plug 5 is provided with air hole 53, and air hole 53 staggers with the central hole location of center intubate 44.The bottom 51 of described end plug 5 is provided with a groove 52, and intubate 44 tops, described center are inserted in the groove 52 and clearance fit with it.

Test tube as shown in Figure 1, comprise tubular container 1 and pipe close 2, described tubular container 1 comprises that a peristome 11 that cooperates with pipe close 2 and is used for storing the liquid storing part 12 of liquid, the pore of described liquid storing part 12 and blood sedimentation tube lower end headgear 7 interference fit, described pipe close 2 has can be for the blind hole 21 of blood sedimentation tube body 3 insertions, and the base wall 22 of blind hole 21 is easy communicating structure.Such as Fig. 5, shown in Figure 6, be connected by membrane wall 23 between the base wall 22 of described blind hole 21 and the sidewall, this membrane wall 23 is the opening ring-type, and the opening part of this split ring is the base wall 22 that connects described blind hole 21 and the heavy section 24 of sidewall.The wall thickness of described membrane wall 23 is 8～12.The peristome 11 of described tubular container 1 seals by multiple tracks annular protrusion, groove fit with pipe close 2.Described tubular container 1 is provided with ring-type serrated slot 13 at the inwall of its peristome 11 and liquid storing part 12 binding sites.The pore internal diameter of described tubular container 1 liquid storing part 12 is less than 3～13 of blood sedimentation tube lower end headgear 7 external diameters.Described tubular container 1 is plastic tube, and described blood sedimentation tube lower end headgear 7 is plastic jacket.

Embodiment 2:

A kind of blood sedimentation tube as shown in Figure 2 only is from the different of embodiment 1: described liquid-blocking unit is water wettability filter core 6, water wettability filter core 6 to fill in the position corresponding with the zero graduation line position on the blood sedimentation tube body 3.

It is emphasized that: above only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment does.

Claims

1. blood sedimentation tube, it is characterized in that, comprise body (3), the sheathed headgear of lower open end (7) of described body (3), the end face of headgear (7) bottom parcel body (3) lower open end, and headgear (7) bottom is provided with the liquid inlet that is communicated with body (3) pore, and the upper open end of described body (3) is installed the liquid-blocking unit that can supply body (3) Air to discharge and stop liquid ejection in the body (3).

2. a kind of blood sedimentation tube according to claim 1 is characterized in that, described liquid-blocking unit is water wettability filter core (6), water wettability filter core (6) to fill in the position corresponding with the zero graduation line position on the blood sedimentation tube body (3).

3. a kind of blood sedimentation tube according to claim 1, it is characterized in that, described liquid-blocking unit comprises connecting pipe (4) and end plug (5), the pore of connecting pipe (4) is cut off (41) and is separated into lower pore (42) and upper pore (43), cut off (41) central authorities and be provided with the center intubate (44) coaxial with connecting pipe (4) pore, the bottom of center intubate (44) is positioned at lower pore (42), the top of center intubate (44) is positioned at pore (43), and the center pit of center intubate (44) is communicated with lower pore (42) and upper pore (43); The upper open end of described blood sedimentation tube body (3) inserts in the lower pore (42) of connecting pipe (4), the upper open end endoporus wringing fit of the bottom of center intubate (44) and blood sedimentation tube body (3), described end plug (5) plug is contained in the upper pore (43) of connecting pipe (4), vacate airspace between the bottom (51) of end plug (5) and the center intubate (44), the bottom (51) of end plug (5) is provided with air hole (53), and air hole (53) staggers with the central hole location of center intubate (44).

4. a kind of blood sedimentation tube according to claim 3 is characterized in that, the bottom (51) of described end plug (5) is provided with a groove (52), and described center intubate (44) top is inserted in the groove (52) and clearance fit with it.

5. a kind of blood sedimentation tube according to claim 1 is characterized in that, described blood sedimentation tube lower end headgear (7) is plastic jacket.