CN202735207U

CN202735207U - Blood sedimentation tube

Info

Publication number: CN202735207U
Application number: CN 201220427846
Authority: CN
Inventors: 蒋峥嵘
Original assignee: Zhejiang Sorfa Medical Plastic Co Ltd
Current assignee: Zhejiang Sorfa Medical Plastic Co Ltd
Priority date: 2012-08-27
Filing date: 2012-08-27
Publication date: 2013-02-13
Anticipated expiration: 2022-08-27

Abstract

The utility model discloses a blood sedimentation tube which comprises a tube body. A lower opening end of the tube body is a liquid inlet, a liquid stopping device capable of allowing air in the tube body to be discharged and stopping liquid in the tube body from being sprayed is mounted at an upper opening end of the tube body, a rubber plug is mounted on a lower portion of the tube body and comprises a head portion and a skirt portion, the heat portion is sleeved on the tube body and tightly fixed in a matched manner, multiple annular protrusions are arranged on the periphery of the head portion, and the skirt portion is in a shape of taper sleeve with an inner conical surface and an outer conical surface. The blood sedimentation tube is simple in structure, convenient to use and operate, low in sample pollution risk and low in manufacturing cost.

Description

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, in vitro can place in advance anti-coagulants; During detection, take off cap test tube, directly the liquid upstream end with the blood sedimentation tube body inserts test tube, when rubber stopper and test tube pore interference fit and when continuing to enter, the effect of being squeezed of invisible spectro sample liquid 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 lower open end of described body is liquid inlet, 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, described body bottom is equipped with rubber stopper, and rubber stopper comprises head and skirt section, and head is sleeved on the body and is tightly fixed, the head periphery is provided with the multiple tracks annular protrusion, and the skirt section is the tapered sleeve shape with inner conical surface and male cone (strobilus masculinus).Like this, when depositing, sample liquid is closed in vitro, in vitro can place in advance anti-coagulants; During detection, take off cap test tube, directly the liquid upstream end with the blood sedimentation tube body inserts test tube, when rubber stopper and test tube pore interference fit and when continuing to enter, the effect of being squeezed of invisible spectro sample liquid 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, because the annular protrusion of rubber stopper head and skirt structure are so that blood sedimentation tube and test tube are tightly fixed is integrated, so only the test tube perpendicular positioning can need to be avoided blood sedimentation tube to tilt, because the blood sedimentation tube body inserts an end of test tube and seals, so guaranteed the accuracy of erythrocyte sedimentation rate test.

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.

The utility model is owing to adopted above technical scheme, and when depositing, sample liquid is closed in vitro, in vitro can place in advance anti-coagulants; During detection, take off cap test tube, directly the liquid upstream end with the blood sedimentation tube body inserts test tube, when rubber stopper and test tube pore interference fit and when continuing to enter, the effect of being squeezed of invisible spectro sample liquid 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, 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.

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 structural representation of rubber stopper.

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 1.

Described blood sedimentation tube, comprise body 3, the lower open end of described body 3 is liquid inlet, 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, described body 3 bottoms are equipped with rubber stopper 2, as shown in Figure 5, rubber stopper 2 comprises head 21 and skirt section 22, head 21 is sleeved on the body 3 and is tightly fixed, head 21 peripheries be provided with can with the friction tight multiple tracks annular protrusion of test tube 1 pore, skirt section 22 is for to have the tapered sleeve shape of inner conical surface and male cone (strobilus masculinus), and skirt section 22 external diameters are greater than test tube 1 pore internal diameter.

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.

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 lower open end of described body (3) is liquid inlet, 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), described body (3) bottom is equipped with rubber stopper (2), rubber stopper (2) comprises head (21) and skirt section (22), head (21) is sleeved on body (3) upward and is tightly fixed, head (21) periphery is provided with the multiple tracks annular protrusion, and skirt section (22) are for having the tapered sleeve shape of inner conical surface and male cone (strobilus masculinus).

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.