Blood separator facilitating injection and extraction

Abstract

The utility model belongs to the technical field of blood separation, and particularly relates to a blood separator convenient for injection and extraction, which comprises a separator main body and an upper cover in threaded connection with one end of the separator main body, the upper cover comprises an injection port, a liquid taking port and a vent hole; a buckle cover is arranged above the upper cover; the injection opening and the liquid taking opening can be protected through the buckle cover. According to the blood separator provided by the utility model, the injection of blood and the extraction of platelet-rich plasma are more convenient, and the pollution risk to the blood is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of blood separation technology, specifically relating to a blood separator that facilitates injection and extraction. Background Technology

[0002] Platelet-rich plasma (PRP) is a plasma component rich in platelets obtained after centrifuging whole blood. It contains a high concentration of platelets (usually more than three times that of whole blood), a certain amount of leukocytes, and fibrin. Platelet activation can induce α-granule degranulation, releasing various cytokines such as platelet-derived growth factor, epidermal growth factor, transforming growth factor, insulin-like growth factor, and fibroblast growth factor, which promote cell proliferation, migration, and tissue regeneration.

[0003] Platelet-rich plasma (PRP) separation and preparation are typically carried out in a closed system. To ensure this sealing effect, existing blood separators generally use nuts or protective sleeves to protect the blood inlet and outlet. However, during use, the nuts and sleeves need to be repeatedly removed and installed, which is cumbersome. Furthermore, the nuts and sleeves are prone to falling off or coming into contact with the inlet and outlet, causing blood contamination.

[0004] In addition, to ensure a good seal, most existing blood separators are cylindrical in shape. When adjusting the liquid level, they are usually turned by screwing. Because there are few points of force, the screwing operation is inconvenient. Summary of the Invention

[0005] The purpose of this invention is to provide a blood separator that facilitates injection and extraction, enabling convenient injection of blood and extraction of platelet-rich plasma while reducing the risk of blood contamination.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0007] A blood separator for easy injection and extraction includes a separator body and a top cover threaded to one end of the separator body; the top cover includes an injection port, a liquid extraction port and a vent hole; a snap-on cover is provided on the top of the top cover; the snap-on cover can protect the injection port and the liquid extraction port.

[0008] Furthermore, the buckle cover of this utility model has a hollow cylindrical protrusion, the outer diameter of which is consistent with the inner diameter of the vent hole; when the hollow cylindrical protrusion is inserted into the vent hole, the buckle cover and the upper cover are combined into a whole.

[0009] Furthermore, after the hollow cylindrical protrusion of this invention is inserted into the vent hole, a breathable membrane is used to seal the vent hole to prevent external pollutants from entering the separator.

[0010] Furthermore, the shape of the buckle cover described in this utility model includes, but is not limited to, a circle or an ellipse.

[0011] Furthermore, the upper cover of this utility model has a protrusion at the position closest to the injection port, and the snap cover has a matching slot at the part that contacts the protrusion. When the snap cover contacts the upper cover, the slot and the protrusion are locked together, which can protect the injection port.

[0012] Furthermore, the upper cover of this utility model has a protrusion at the position closest to the liquid dispensing port, and the snap-on cover has a matching slot at the part that contacts the protrusion. When the snap-on cover contacts the upper cover, the slot and the protrusion are locked together, which can protect the liquid dispensing port.

[0013] Furthermore, the vent hole of this utility model is located at the center of the snap-on cover, and the injection port and liquid extraction port are symmetrically distributed on both sides of the vent hole.

[0014] Furthermore, the injection port and liquid extraction port of this utility model are provided with matching sealing plugs; preferably, the sealing plugs are designed with an I-shaped structure, which not only can play a sealing role, but also are not easy to fall off.

[0015] Furthermore, the sealing plug described in this invention is made of rubber or silicone.

[0016] Furthermore, the buckle cover of this utility model has a retaining ring at the contact part with the injection port and the liquid dispensing port. The retaining ring can press the rubber stopper of the injection port and the liquid dispensing port, thereby protecting the surface of the rubber stopper from contamination.

[0017] Furthermore, the separator body of this utility model includes an upper chamber, a lower chamber, and a connecting chamber. The diameters of the upper chamber and the lower chamber gradually decrease near the connecting chamber and are connected to the connecting chamber.

[0018] Furthermore, the connecting cavity described in this utility model has a cylindrical structure.

[0019] Furthermore, the upper cover of this utility model is threadedly connected to the upper chamber.

[0020] Furthermore, the lower chamber of the separator body of this utility model is provided with a lower cover, and the lower chamber is threadedly connected to the lower cover; a sealing plug is provided inside the lower cover, and the sealing plug can be moved by screwing the lower cover; before blood is injected, the volume of the lower chamber can be adjusted by screwing the lower cover to obtain blood separators of different specifications; after blood is injected and centrifuged, the platelet-rich plasma level can be adjusted to the connecting cavity by screwing the lower cover.

[0021] Furthermore, the blood separator of this utility model also includes an inner rod, which is threadedly connected to or welded to the hollow cylindrical protrusion of the snap cover and is vertically suspended at the upper end of the connecting cavity; the threaded connection end of the inner rod and the hollow cylindrical protrusion is provided with an air guide groove.

[0022] Furthermore, the inner rod of this utility model includes a rod body and a rod head. The rod head of the inner rod matches the connecting cavity. By screwing on the upper cover, the rod head can be driven to seal the connecting cavity, thereby separating the red blood cell-rich plasma in the lower cavity from the platelet-rich plasma in the upper cavity.

[0023] Furthermore, the separator body of this utility model is provided with a double-curved platform on the outside, which makes it convenient to hold it with force.

[0024] The blood separator provided by this utility model is cylindrical in shape.

[0025] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0026] The blood separator provided by this utility model uses a snap-on cover to protect the blood injection port and the platelet-rich plasma extraction port, which facilitates blood injection and platelet-rich plasma extraction and is easy to operate.

[0027] The blood separator provided by this utility model has a double-curved platform, which increases the force point during the twisting operation, making the operation more convenient and saving time and effort. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the upper cover of the blood separator of this utility model;

[0029] Figure 2 This is a schematic diagram of the snap-on cover of the blood separator of this utility model;

[0030] Figure 3 This is a cross-sectional view of the main body of the blood separator of this utility model;

[0031] Figure 4 This is a disassembly diagram of the blood separator of this utility model.

[0032] Figure 5 This is a schematic diagram of the double-curved platform of the blood separator of this utility model;

[0033] Figure 6 This is a schematic diagram of the inner rod of the blood separator of this utility model;

[0034] in:

[0035] 10 Top cover; 11 Inlet; 12 Liquid outlet; 13 Vent hole;

[0036] 20. Snap-on cover; 21. Hollow cylindrical protrusion; 22. Retaining ring;

[0037] 30 Separator body; 31 Upper chamber; 32 Lower chamber; 33 Connecting chamber; 34 Double-curved platform;

[0038] 40. Bottom cover; 41. Sealing plug;

[0039] 50 Inner rod; 51 Air guide groove; 52 Rod head. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0041] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0042] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0043] The blood separator provided by this utility model includes a separator body and a top cover 10 threadedly connected to one end of the separator body, such as... Figure 1 As shown, the upper cover 10 includes an injection port 11, a liquid outlet 12, and a vent 13; a snap-on cover 20 is provided on the top of the upper cover, as shown. Figure 2As shown; the snap-on cover has a hollow cylindrical protrusion 21, the outer diameter of which is the same as the inner diameter of the vent hole 13; when the hollow cylindrical protrusion 21 is inserted into the vent hole 13, the snap-on cover 20 and the upper cover 10 are combined into a whole; after the hollow cylindrical protrusion 21 is inserted into the vent hole 13, a breathable membrane is used to seal the vent hole to prevent external pollutants from entering the separator. The shape of the snap-on cover 20 includes, but is not limited to, a circle or an ellipse.

[0044] The injection port 11 and the liquid dispensing port 12 are equipped with matching sealing plugs. Preferably, the sealing plugs are designed with an I-shaped structure, which not only provides a sealing function but also prevents them from falling off. The sealing plugs are made of rubber or silicone. The snap-on cover 20 has a retaining ring 22 at its contact points with the injection port 11 and the liquid dispensing port 12. The outer diameter of the retaining ring 22 is the same as the inner diameter of the injection port 11 and the liquid dispensing port 12, allowing pressure to be applied to the sealing plugs of the injection port 11 and the liquid dispensing port 12, thereby protecting the surface of the sealing plugs from contamination.

[0045] like Figure 3 and Figure 4 As shown, the blood separator body 30 provided by this utility model includes an upper chamber 31, a lower chamber 32 and a connecting cavity 33; the diameters of the upper chamber 31 and the lower chamber 32 gradually decrease near the end of the connecting cavity and are connected to the connecting cavity 33; the connecting cavity 33 has a cylindrical structure.

[0046] The upper chamber 31 of the separator body of this utility model is threadedly connected to the upper cover 10. To ensure a seal, a sealing ring is provided at the threaded connection. The lower chamber 32 is provided with a lower cover 40, and the lower chamber 32 is threadedly connected to the lower cover 40. A sealing plug 41 is provided inside the lower cover 40. By screwing the lower cover 40, the sealing plug 41 can be moved. Before blood injection, screwing the lower cover 40 can adjust the volume of the lower chamber 32 to obtain blood separators of different specifications. After blood injection and centrifugation, screwing the lower cover can adjust the platelet-rich plasma level to the connecting cavity 33.

[0047] To provide a larger point of leverage, the outer side of the separator body is provided with a double-curved platform 34, such as... Figure 5 As shown.

[0048] The blood separator provided by this utility model also includes an inner rod 50, which is threadedly connected to or welded to the hollow cylindrical protrusion 21 of the snap-on cover, and is vertically suspended above the connecting cavity 33; the threaded connection end of the inner rod 50 and the hollow cylindrical protrusion 21 is provided with an air guide groove 51, such as... Figure 6As shown; the air guide groove 51 allows air to enter the separator, thereby facilitating blood injection and platelet-rich plasma extraction. The rod head 52 of the inner rod matches the connecting cavity 33. By screwing on the upper cover, the rod head 52 can be driven to seal the connecting cavity, thereby separating the erythrocyte-rich plasma in the lower chamber 32 from the platelet-rich plasma in the upper chamber 31.

[0049] In use, hold the double-curved platform 34 of the separator, unscrew the lower cover 40, and adjust the lower chamber of the blood separator to a suitable volume; unscrew the upper cover 10 to move the inner rod 50, so that the inner rod 50 is suspended above the connecting chamber 33. Open the snap cover 20 on the injection port 11, insert the syringe after drawing blood into the sealing plug of the injection port 11, and push the syringe to inject the blood into the separator. After injection, press the snap cover 20 above the injection port 11 to seal the injection port 11, and then place the upper chamber 31 of the separator upward into the centrifuge for centrifugation.

[0050] After centrifugation, hold the double-curved platform 34 of the separator and screw on the lower cover 40 to move the sealing plug 41 inside the lower cover, adjusting the platelet-rich plasma level to the connecting chamber 33. Then, screw on the upper cover 10 to move the inner rod 50, causing the rod head 52 to completely seal the connecting chamber 33. At this point, the liquid in the upper chamber is platelet-rich plasma. After mixing it evenly, open the snap cover 20 on the extraction port 12 and use a syringe to extract the platelet-rich plasma.

[0051] If a second centrifugation is required, place the separator with the upper chamber facing upwards into the centrifuge for another centrifugation. After centrifugation, open the latch cover on the liquid collection port, use a syringe to extract the upper serum layer, and the remaining liquid is platelet-rich plasma. Take another syringe and extract the remaining liquid.

[0052] The device provided by this invention can not only separate and collect blood components, but also be used for the separation and extraction of multi-component mixtures in other fields, as long as the mixture can be separated into layers after centrifugation.

[0053] Finally, it should be noted that the above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A blood separator for easy injection and extraction, characterized in that, The device includes a separator body and a top cover threaded to one end of the separator body; the top cover includes an injection port, a liquid intake port and a vent hole; a snap-on cover is provided on the top of the top cover; the snap-on cover can protect the injection port and the liquid intake port; The separator body includes an upper chamber, a lower chamber, and a connecting chamber. The diameters of the upper chamber and the lower chamber gradually decrease near the connecting chamber and are connected to the connecting chamber. The connecting chamber has a cylindrical structure. The lower chamber end of the separator body is provided with a lower cover, and the lower chamber end is threadedly connected to the lower cover; The lower cover is equipped with a sealing plug, which can be moved by screwing the lower cover. Before blood injection, the volume of the lower chamber can be adjusted by screwing the lower cover to obtain blood separators of different sizes. After blood injection and centrifugation, the level of platelet-rich plasma can be adjusted to the connecting cavity by screwing the lower cover. The blood separator also includes an inner rod, which is threadedly connected to or welded to the hollow cylindrical protrusion of the snap cover and is vertically suspended at the upper end of the connecting cavity; the threaded connection end between the inner rod and the hollow cylindrical protrusion is provided with an air guide groove. The inner rod includes a rod body and a rod head. The rod head of the inner rod matches the connecting cavity. By screwing on the upper cover, the rod head can be driven to seal the connecting cavity.

2. The blood separator for easy injection and extraction according to claim 1, characterized in that, The buckle cover has a hollow cylindrical protrusion, the outer diameter of which is the same as the inner diameter of the vent hole; when the hollow cylindrical protrusion is inserted into the vent hole, the buckle cover and the upper cover are combined into a whole.

3. A blood separator for easy injection and extraction according to claim 1, characterized in that, The injection port and liquid extraction port are equipped with matching sealing plugs.

4. A blood separator for easy injection and extraction according to claim 1, characterized in that, The buckle cover has a retaining ring at the contact point with the injection port and the liquid dispensing port, and the outer diameter of the retaining ring is the same as the inner diameter of the injection port and the liquid dispensing port.

5. A blood separator for easy injection and extraction according to claim 1, characterized in that, The upper chamber end is threadedly connected to the upper cover.

6. A blood separator for easy injection and extraction according to claim 1, characterized in that, The separator body has a double-curved platform on its outer side.

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