A kind of biological specimen collection pipe
Technical field
The utility model relates to the instrument that a kind of sample carries out gathering, and particularly relates to a kind of biological specimen collection pipe.
Background technology
In biological and medical experiment are studied, the material of the reflection biological nature to biological or people is often needed to gather, i.e. biological specimen collection, present sample is gathered by collection of specimens pipe or collecting cassette, and existing collection tube or collecting cassette are made up of two portions, i.e. box body (or body) and lid (pipe lid), poor sealing performance, transport and transfer process in specimen amount can reduce, also has its poor stability prior, namely sample collection tube or collecting cassette are in transport process, box body and lid are easy to break, and sample changed risk is wherein larger.
Separately have China Patent No. to be: 201120544437.3, the day for announcing is 2012.8.22, discloses a kind of test tube gathered biological specimen, specifically the special collection tube of a kind of biological specimen.It comprises body and Guan Gai, it is characterized in that: pipe lid is fixedly connected with by pipe box with body, and the diameter of the pipe box of collection tube is greater than pipe diameter.Described pipe box is connected with body by screw thread, and pipe lid is plugged in pipe box.Depart from when the part that collection tube upper end diameter after pipe lid pressurized is large is easy to the body less with diameter.The bottom of the body of described collection tube is provided with cross recess, makes the bottom of collection tube weak, is easy to be punctured by spike.Pipe lid and body are fixed by pipe box by its structure of above-mentioned patent, and pipe box is connected with body by screw thread, its poor sealing performance, the security of this collection test tube is also poor simultaneously.
Utility model content
In order to overcome the defect of above-mentioned prior art, the utility model provides a kind of biological specimen collection pipe, and this biological specimen collection pipe collect specimen is simple, convenient, and good seal performance, has extremely strong security simultaneously.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of biological specimen collection pipe, comprise body and Guan Gai, described body and pipe cover buckle are closed, it is characterized in that: the mouth of pipe outside described body is provided with the voussoir protruding from outer surface of tube body, the inwall of described pipe lid is provided with limited block, when described body and pipe cover buckle are closed, limited block is fastened on the lower edge of voussoir, and described pipe lid is that plastics are made.
Described voussoir progressive additive from top to bottom, its cross section is trilateral, and the lower surface of voussoir is plane, and the upper surface of described limited block is plane, and when body and pipe cover buckle are closed, two described planes fasten mutually.
Fin is provided with outside the lower surface of described voussoir.
When described body and pipe cover buckle are closed, described limited block becomes to closely cooperate with fin.
The utility model has the following advantages:
1, the mouth of pipe outside the utility model body is provided with the voussoir protruding from outer surface of tube body, the inwall of described pipe lid is provided with limited block, when described body and pipe cover buckle are closed, limited block is fastened on the lower edge of voussoir, described pipe lid is that plastics are made, the pipe lid that plastics are made has stronger elasticity, pipe covers when being inserted in body, the voussoir of outer surface of tube body makes the tensioning gradually of pipe lid, when having fastened pipe lid inwall on limited block and voussoir link closely, complete pipe lid capping, its structure is simple, sealing property is better, pipe lid difficult drop-off simultaneously, prevent the loss of sample, improve the security of sample.
2, voussoir described in the utility model progressive additive from top to bottom, its cross section is trilateral, the lower surface of voussoir is plane, and the upper surface of described limited block is plane, when body and pipe cover buckle are closed, two described planes fasten mutually, the tightness degree that pipe lid and body fasten strengthens step by step, fastens laborsaving, and the connection of pipe lid and body is fastened by two planes, in sample rotation process, pipe lid can not come off.
Be provided with fin outside the lower surface of 3, the utility model voussoir, when described body and pipe cover buckle are closed, described limited block becomes to closely cooperate with fin.Fin becomes the sealing-ring of body and pipe lid never drop-off, and its sealing resistance to air loss is better.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Mark in figure: 1, body, 2, Guan Gai, 3, voussoir, 4, limited block, 5, fin.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
Embodiment 1
As shown in Figure 1, a kind of biological specimen collection pipe, comprise body 1 and pipe lid 2, body 1 is for collection of biological sample (especially liquid biological specimen), pipe lid 2 is for capping body 1, be connected with the mouth of pipe of body by pipe lid 2, prevent the loss of biological specimen, namely body 1 and pipe lid 2 are mutually fasten.In order to strengthen resistance to air loss and the security of biological specimen collection device, the plastics that pipe lid 2 adopts elasticity stronger are made, body 1 can adopt glass or transparent plastics to make, the mouth of pipe outside body 1 is provided with the voussoir 3 protruding from outer surface of tube body, voussoir 3 effect is that pipe lid 2 is when being fastened on body 1, pipe lid can be made to open, be close to the outer wall of body 1 under the effect of elasticity of plastics, simultaneously in order to after preventing pipe lid 2 and body 1 from fastening, pipe lid 2 comes off from body 1, the inwall of pipe lid 2 is provided with limited block 4, fasten well at body 1 and pipe lid 2, limited block 4 is fastened on the lower edge of voussoir 3, pipe lid 2 not only links closely with body 1, and can not come off.
Further, described voussoir 3 progressive additive from top to bottom, its cross section is trilateral (as shown in Figure 1), and the lower surface of voussoir 3 is plane, and the upper surface of described limited block 4 is plane, and when body and pipe cover buckle are closed, two described planes fasten mutually.Voussoir 3 progressive additive from top to bottom, its cross section is trilateral, and the tightness degree that pipe lid 2 and body 1 fasten strengthens step by step, and fasten laborsaving, the connection of pipe lid and body is fastened by two planes, and in sample rotation process, pipe lid can not come off.
Further, be provided with fin 5 outside the lower surface of described voussoir 3, when described body 1 fastens with pipe lid 2, described limited block 4 closely cooperates with fin 5 one-tenth.Fin becomes the sealing-ring of body and pipe lid never drop-off, and its sealing resistance to air loss is better.