CN215534415U - Vacuum blood collection tube for separating PRP - Google Patents
Vacuum blood collection tube for separating PRP Download PDFInfo
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- CN215534415U CN215534415U CN202122046944.0U CN202122046944U CN215534415U CN 215534415 U CN215534415 U CN 215534415U CN 202122046944 U CN202122046944 U CN 202122046944U CN 215534415 U CN215534415 U CN 215534415U
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Abstract
The utility model relates to the field of blood collection tubes, in particular to a vacuum blood collection tube for separating PRP. Including top tube and low tube, be provided with communicating pipe between top tube and the low tube, the upper portion threaded connection of top tube has the top tube cap, the center of top tube cap is provided with the sampling pipe of protrusion up end, the surface of sampling pipe set up with top tube upper portion screw thread opposite direction's external screw thread, the lower extreme integrated into one piece of sampling pipe has the same inlet tube of diameter, sampling pipe threaded connection has the sampling pipe cap, the lower extreme integrated into one piece of sampling pipe cap has the connecting rod, the lower extreme of connecting rod is connected with the rubber buffer, the rubber buffer gets into the inlet tube and seals it. This novel area of meeting that can reduce PRP and upper and lower liquid level, and then reduce infiltration and the mixture of each other, improve purity, set up the inlet tube on direct PRP layer simultaneously, can be more convenient draw the platelet concentrate.
Description
Technical Field
The utility model relates to the field of blood collection tubes, in particular to a vacuum blood collection tube for separating PRP.
Background
PRP is a platelet concentrate extracted from whole blood by centrifugation, and contains high concentrations of platelets (which release more than 30 growth factors upon platelet activation), leukocytes, and fibrin. The PRP can promote the repair of bones and soft tissues, and after being activated (without being activated in an injection body), the PRP releases more than 30 growth factors with high concentration, such as platelet-derived growth factors, transforming factor beta, insulin-like growth factors, vascular endothelial growth factors, epidermal growth factors and the like, and the growth factors can accelerate the differentiation of mesenchymal stem cells, promote the proliferation of osteoblasts and fibroblasts and accelerate the synthesis of fibrin and extracellular matrix. Is helpful for blocking the damaged vessel wall, contracting the lacerated opening of the vessel and preventing the further bleeding of the damaged tissue. It is a biological scaffold, can be used for screening cells and platelets, and is beneficial to the creeping and adhesion of stem cells repaired around. PRP preparation requires centrifugation of the blood through PRP tubes to obtain platelet concentrates.
The existing PRP test tube is prepared by placing a test tube with collected blood into a centrifuge, then centrifuging again, separating into serum, platelet concentrate and red blood cells, and then sequentially extracting through a syringe needle. However, in the process of drawing, since the upper serum needs to be drawn first and then the platelet concentrate needs to be drawn, on one hand, the needle is easy to be directly inserted into the platelet concentrate from the serum during the drawing for medical care, so that the purity of the platelet concentrate is reduced, and on the other hand, because the content of the platelet concentrate is low, the contact surfaces of the existing tube bodies with equal diameters and the upper and lower liquid surfaces are large, the two liquid bodies are easy to mix with each other, and the actual drawing is difficult.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the present invention is directed to provide a vacuum blood collection tube for separating PRP, which can reduce the contact area between PRP and the upper and lower liquid surfaces, reduce mutual permeation and mixing, improve purity, and provide a liquid inlet tube directly reaching the PRP layer, thereby more conveniently extracting platelet concentrate.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a vacuum test tube for separating PRP, includes top tube and low tube, be provided with communicating pipe between top tube and the low tube, the upper portion threaded connection of top tube has the top tube cap, the center of top tube cap is provided with the sampling tube of protrusion up end, the surface of sampling tube set up with top tube upper portion screw thread opposite direction's external screw thread, the lower extreme integrated into one piece of sampling tube has the inlet tube that the diameter is the same, sampling tube threaded connection has the sampling tube cap, the lower extreme integrated into one piece of sampling tube cap has the connecting rod, the lower extreme of connecting rod is connected with the rubber buffer, the rubber buffer gets into the inlet tube and seals it.
Preferably, the inside of the upper pipe cap is provided with a butyl rubber plug, the upper pipe cap is further provided with a blood sampling hole, and the blood sampling hole is provided with a blood sampling hole plug in a matching manner.
Preferably, the lower end of the lower pipe is in threaded connection with a lower pipe cap, and a liquid outlet of the rubber body is formed in the lower pipe cap.
Preferably, the outer wall of the sampling tube cap is provided with anti-slip stripes.
Preferably, the lower end of the upper pipe and the upper end of the lower pipe are both cones, and the lower end of the liquid inlet pipe is located in the cone space at the lower end of the upper pipe.
Preferably, the lower end face of the rubber plug is flush with the lower end face of the liquid inlet pipe.
Compared with the prior art, the utility model has the beneficial effects that:
1. the novel liquid inlet pipe capable of directly reaching the PRP layer is arranged, the problem that the pollution is caused by the fact that the needle head firstly extracts upper serum and then extracts platelets is avoided, meanwhile, the needle head penetrates through the lower end of the liquid inlet pipe and enters the PRP layer, then the needle head can move up and down to a certain height, the platelets are completely extracted, and medical staff are prevented from being accidentally inserted into the PRP layer when serum is extracted;
2. the liquid inlet pipe is provided with the sealing rubber plug, so that the problem of mixing caused by the fact that liquid is filled in the liquid inlet pipe in the centrifugal process and then platelets are extracted is solved;
3. the novel upper pipe cap and the sampling pipe cap have opposite thread directions, so that the technical effect of screwing the upper pipe cap when the sampling pipe cap is unscrewed can be achieved, and the leakage of liquid caused by simultaneous unscrewing is avoided;
4. the butyl rubber plug is arranged in the upper pipe cap, so that the sealing effect can be further achieved;
5. the lower tube cap is provided with a liquid outlet, and red blood cells can be directly extracted through the liquid outlet if the red blood cells need to be directly extracted.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.
In the drawings:
fig. 1 is a schematic structural view of the liquid inlet pipe of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
FIG. 3 is a schematic structural view of the present invention without an upper cap.
Fig. 4 is a front structural diagram of the upper pipe cap.
Fig. 5 is a schematic view of the forward structure of the sampling tube cap.
Fig. 6 is a schematic view of an inverted structure of the sampling tube cap.
Fig. 7 is a cross-sectional view of the upper cap.
Wherein: 1. the blood sampling device comprises an upper pipe, a lower pipe, a communicating pipe, a lower pipe cap, a liquid outlet, a butyl rubber plug, an external thread, a sampling pipe cap, a connecting rod, a rubber plug, a liquid inlet pipe, a blood sampling hole plug, a sampling hole plug and an anti-skid stripe, wherein the upper pipe, the lower pipe, the communicating pipe, the sampling pipe cap, the liquid outlet, the butyl rubber plug, the external thread, the sampling pipe cap, the connecting rod, the rubber plug, the liquid inlet pipe, the sampling hole plug, the blood sampling hole plug and the anti-skid stripe are arranged in sequence from top to bottom, and the anti-skid device comprises a base, a connecting rod and a connecting rod.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b):
referring to FIGS. 1-7, a vacuum blood collection tube for separating PRP comprises an upper tube 1 and a lower tube 2, the heights of the upper pipe 1 and the lower pipe 2 are the same, the lower end of the upper pipe 1 and the upper end of the lower pipe 2 are both cones, the connection area of the PRP and the upper and lower liquid surfaces can be reduced, thereby reducing mutual permeation and mixing, improving purity, and simultaneously arranging a liquid inlet pipe which directly reaches the PRP layer, can more conveniently extract platelet concentrate, a communicating pipe 3 is arranged between the upper pipe 1 and the lower pipe 2, the upper part of the upper tube 1 is connected with an upper tube cap 9 through screw threads, a sampling tube 8 which protrudes out of the upper end surface of the upper tube cap 9 is arranged in the center of the upper tube cap 9, the outer surface of the sampling pipe 8 is provided with an external thread 7 with the direction opposite to that of the upper thread of the upper pipe 1, and then can reach the technical effect of screwing the upper tube cap when unscrewing the sampling tube cap, avoid simultaneously unscrewing and cause revealing of liquid.
The lower extreme integrated into one piece of sampling pipe 8 has liquid inlet pipe 13 that the diameter is the same, the lower extreme of liquid inlet pipe 13 is located the cone space of the lower extreme of upper tube 1. Because the content of the separated red blood cells is slightly more than that of serum, platelet-rich plasma is approximately positioned in cones at the lower end of the upper tube 1 and the upper end of the lower tube 2, and therefore the platelet-rich plasma directly reaches the liquid inlet tube of the PRP layer, the problem that the needle extracts the upper serum layer first and then extracts platelets to cause pollution is avoided, meanwhile, the needle can move up and down on the PRP layer after penetrating through the lower end of the liquid inlet tube to enter the PRP layer, platelets are completely extracted, and medical staff is prevented from being inserted into the PRP layer when extracting the serum carelessly;
8 threaded connection of sampling pipe has sampling pipe cap 10, the lower extreme integrated into one piece of sampling pipe cap 10 has connecting rod 11, connecting rod 11 is the medical plastics of stereoplasm, and its diameter is less than the internal diameter of inlet tube 13, the lower extreme of connecting rod 11 bonds has rubber buffer 12, and rubber buffer 12's diameter is the same with the internal diameter of inlet tube 13, the lower terminal surface of rubber buffer 12 and the lower terminal surface parallel and level of inlet tube 13, rubber buffer 12 gets into inlet tube 13 and seals it, has avoided also being full of liquid in the inlet tube in centrifugal process, and then has leaded to the mixed problem that can cause when drawing the platelet.
Go up the inside of pipe cap 9 and be provided with butyl rubber stopper 6, the diameter of butyl rubber stopper 6 is the same with the internal diameter of upper tube 1, and then can further play sealed effect. The upper pipe cap 9 is further provided with a blood sampling hole 14, the blood sampling hole 14 is provided with a blood sampling hole plug 15 in a matching mode, the needle can directly penetrate into the butyl rubber plug 6 body below the blood sampling hole 14 during blood sampling, and the blood sampling hole plug 15 is made of medical rubber materials and can achieve the effects of sealing, dust prevention and bacteria prevention.
The lower extreme threaded connection of low tube 2 has lower tube cap 4, be provided with the liquid outlet 5 of the rubber body on lower tube cap 4, can directly pass through the syringe needle during the use and extract red blood cell can.
The outer wall of the sampling tube cap 10 is provided with anti-slip stripes 17, which is convenient for medical staff to screw.
The principle and the using process of the utility model are as follows:
and opening the blood sampling hole plug 15, inserting the needle into the blood sampling hole 14 to finish blood collection, plugging the blood sampling hole plug 15, putting the blood sampling hole plug into a centrifuge for separation, and separating the blood sampling tube into serum, platelet concentrate and red blood cells from top to bottom in sequence after centrifugation, wherein the platelet concentrate is positioned in the middle. The sampling tube cap 10 is unscrewed and pulled out, then the sampling needle is inserted into the sampling tube 8 and then enters the liquid inlet tube 13 and penetrates out, and then the extraction of the platelet concentrate is finished.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a vacuum test tube for separating PRP, includes top tube (1) and low tube (2), be provided with communicating pipe (3) between top tube (1) and low tube (2), its characterized in that: upper portion threaded connection of top tube (1) has last pipe cap (9), the center of going up pipe cap (9) is provided with sampling pipe (8) of protrusion its up end, external screw thread (7) opposite with top tube (1) upper portion screw thread direction are seted up to the surface of sampling pipe (8), the lower extreme integrated into one piece of sampling pipe (8) has inlet tube (13) that the diameter is the same, sampling pipe (8) threaded connection has sampling pipe cap (10), the lower extreme integrated into one piece of sampling pipe cap (10) has connecting rod (11), the lower extreme of connecting rod (11) is connected with rubber buffer (12), rubber buffer (12) get into inlet tube (13) and seal it.
2. The evacuated blood collection tube for separating PRP according to claim 1, wherein: the novel blood sampling tube is characterized in that a butyl rubber plug (6) is arranged inside the upper tube cap (9), a blood sampling hole (14) is further formed in the upper tube cap (9), and a blood sampling hole plug (15) is arranged in the blood sampling hole (14) in a matched mode.
3. The evacuated blood collection tube for separating PRP according to claim 2, wherein: the lower end of the lower pipe (2) is in threaded connection with a lower pipe cap (4), and a liquid outlet (5) of a rubber body is formed in the lower pipe cap (4).
4. The evacuated blood collection tube for separating PRP according to claim 3, wherein: the outer wall of the sampling pipe cap (10) is provided with anti-skid stripes (17).
5. The evacuated blood collection tube for separating PRP according to claim 4, wherein: the lower extreme of upper tube (1) and the upper end of low tube (2) are the cone, the lower extreme of admission pipe (13) is located the cone space of the lower extreme of upper tube (1).
6. The evacuated blood collection tube for separating PRP according to claim 5, wherein: the lower end face of the rubber plug (12) is flush with the lower end face of the liquid inlet pipe (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122046944.0U CN215534415U (en) | 2021-08-27 | 2021-08-27 | Vacuum blood collection tube for separating PRP |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122046944.0U CN215534415U (en) | 2021-08-27 | 2021-08-27 | Vacuum blood collection tube for separating PRP |
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| Publication Number | Publication Date |
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| CN215534415U true CN215534415U (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122046944.0U Active CN215534415U (en) | 2021-08-27 | 2021-08-27 | Vacuum blood collection tube for separating PRP |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114010659A (en) * | 2021-11-23 | 2022-02-08 | 新疆维吾尔自治区人民医院 | Preparation method of platelet-rich plasma |
| CN114887681A (en) * | 2022-06-13 | 2022-08-12 | 杭州博科迈生物科技有限公司 | Platelet-rich plasma separation device |
-
2021
- 2021-08-27 CN CN202122046944.0U patent/CN215534415U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114010659A (en) * | 2021-11-23 | 2022-02-08 | 新疆维吾尔自治区人民医院 | Preparation method of platelet-rich plasma |
| CN114010659B (en) * | 2021-11-23 | 2023-09-29 | 新疆维吾尔自治区人民医院 | Preparation method of platelet-rich plasma |
| CN114887681A (en) * | 2022-06-13 | 2022-08-12 | 杭州博科迈生物科技有限公司 | Platelet-rich plasma separation device |
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