Platelet-rich plasma preparation device

Abstract

The utility model discloses a blood platelet rich plasma preparation device which comprises a middle sleeve, an upper storage body, an upper storage cover, a lower storage body and a lower storage cover, a hyperbolic PRP channel and a hyperbolic red blood cell channel are arranged in the upper storage body and the lower storage body respectively, an upper locking bolt and a lower locking bolt are fixed in the middle sleeve, and after the upper locking bolt and the PRP channel are locked in a matched mode, the upper locking bolt and the lower locking bolt are locked in a matched mode. The upper storage body and the upper storage cover form a PRP storage chamber, after the lower locking bolt and the red blood cell channel are matched and locked, the lower storage body and the lower storage cover form a red blood cell storage chamber, the middle sleeve is a plasma storage chamber, a PRP suction opening is formed in the upper storage cover, and the required PRP amount is accurately extracted through the suction opening through the needle head. According to the blood separation device, two times of centrifugal separation can be carried out under the condition that blood is not exposed to air, the blood separation concentration is high, and the PRP extraction amount is accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of blood separation devices, in particular to a blood platelet-rich plasma preparation device. Background Art

[0002] Blood is composed of plasma, platelets and blood cells, among which platelets contain components required for the regeneration and repair of human tissues. When blood is centrifuged, it is separated into plasma, platelets and blood cells according to its weight. The platelets separated in this way form plasma rich in plasma, namely platelet-rich plasma (PRP: Platelet Rich Plasma) and platelet-poor plasma (PPP: Platelet Poor Plasma). Because platelets contain various growth factors, they play an important role in wound healing and skin regeneration. Reports show that PRP contains these platelets at high concentrations, and thus various growth factors promote the reproduction of surrounding cells and have the effect of promoting the full synthesis of components such as collagen. Therefore, it is used in the treatment of ailments such as low back pain, treatment of hair loss, skin regeneration or burn treatment.

[0003] The following problems exist when using existing blood separation devices: after blood collection, the blood will be exposed to the air during the process of moving it to the centrifugal separation container; the existing blood separation device uses a limiter with a plunger rod structure to seal the openings of the upper and lower separation chambers. The plunger rod is tightened by a thread, and the plunger rod is at risk of breaking or bending, resulting in a loose seal and the risk of leakage, which affects the concentration of the separated blood. In addition, it is difficult to accurately extract the required amount of PRP. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the defects of the above-mentioned prior art and provide a blood separation device that can perform two centrifugal separations without exposing the blood to the air, with high concentration of separated blood and accurate amount of PRP extracted.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a blood platelet-rich plasma preparation device, characterized in that it includes an intermediate sleeve, an upper storage body and a lower storage body, the upper storage body and the lower storage body are detachably connected to the upper end and the lower end of the intermediate sleeve respectively, the upper end of the upper storage body is detachably connected to the upper storage cover, and the lower end of the lower storage body is detachably connected to the lower storage cover, a PRP channel is provided in the upper storage body and is tightened toward the upper storage cover, a red blood cell channel is provided in the lower storage body and is tightened toward the lower storage cover, and the intermediate sleeve is provided with a plurality of Fix the upper and lower locking bolts. The upper locking bolt and the lower locking bolt are cones that cooperate with the PRP channel and the red blood cell channel respectively. When the upper locking bolt cooperates with the PRP channel and is locked, the upper storage body and the upper storage cover form a PRP storage chamber. When the lower locking bolt cooperates with the red blood cell channel and is locked, the lower storage body and the lower storage cover form a red blood cell storage chamber. The middle sleeve is a plasma storage chamber. An injection port is set on the side of the upper storage body, and a PRP suction port is opened on the upper storage cover. The upper storage cover is made of silicone material, and the PRP suction port is in the shape of a gap for inserting a needle.

[0006] Furthermore, the middle sleeve and the upper storage body, the middle sleeve and the lower storage body, the upper storage body and the upper storage cover, and the lower storage body and the lower storage cover are all connected by threads.

[0007] Furthermore, the end faces of the upper locking bolt and the lower locking bolt are arc-shaped, and the diameters of the end portions are slightly larger than the diameters of the PRP channel and the red blood cell channel, respectively, so that the locking bolts can be inserted into the channels with interference fit.

[0008] Furthermore, a mounting plate is provided in the intermediate sleeve, and the upper locking bolt and the lower locking bolt are symmetrically arranged relative to the mounting plate.

[0009] Furthermore, the lower locking bolt, the intermediate sleeve and the mounting plate are an integrated structure, the upper locking bolt is clamped on the inner wall of the intermediate sleeve, and an annular clamping groove is provided on the inner wall of the intermediate sleeve.

[0010] Furthermore, the upper locking bolt and the lower locking bolt are clamped on the mounting plate through buckles.

[0011] Furthermore, the bottom of the lower storage cover is configured to be inwardly concave, so that red blood cells accumulate around the bottom, making it easier to collect the red blood cells and improving extraction efficiency.

[0012] Furthermore, the upper storage cover is configured as a hollow annular body, the PRP collection part is clamped in the upper storage cover, the PRP suction port is arranged at the outward end of the PRP collection part, and the PRP collection part is covered with a dust cover.

[0013] Furthermore, a sealing ring is installed between the PRP collection unit and the upper storage cover.

[0014] Furthermore, a guide groove is provided on the vertebral body of the locking bolt to facilitate blood flow.

[0015] The platelet-rich plasma preparation device of the present invention has the following beneficial effects:

[0016] 1. By configuring the device into three detachable parts, the separation of PRP and red blood cells can be achieved by simply swapping the vertical positions of the upper and lower storage bodies, without exposing the blood to air.

[0017] 2. The red blood cell channel and PRP channel are designed to have a funnel shape that tightens toward the center, effectively improving the stratification effect during the blood separation process. The locking bolt is interference-fitted with the channel to ensure that the stratified blood will not drip during the sealing process, thereby improving the concentration of the separated blood.

[0018] 3. After PRP is collected, the required amount of PRP is accurately extracted through the needle and suction port;

[0019] 4. The lower locking bolt and the middle sleeve are designed as one piece, and the upper locking bolt matches the inner groove of the middle sleeve. The assembly is locked and fixed, the device is reliable and prevents falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 It is a structural diagram of the utility model;

[0022] Figure 2 It is a cutaway view of the utility model;

[0023] Figure 3 This is a connection method between the locking bolt and the intermediate sleeve of the utility model;

[0024] Figure 4 This is another way of connecting the locking bolt and the intermediate sleeve of the utility model;

[0025] Figure 5 yes Figure 4 A schematic diagram of the structure of the locking bolt of the connection method shown;

[0026] In the figure: 1. Upper storage cover, 2. Upper storage body, 3. Upper locking bolt, 4. Middle sleeve, 5. Lower storage body, 6. Lower storage cover, 7. Lower locking bolt, 8. PRP channel, 9. Red blood cell channel, 10. Mounting plate, 11. PRP collection unit, 12. Dust cover, 13. Sealing ring, 14. Buckle. DETAILED DESCRIPTION

[0027] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0028] like Figure 1 、 2 The blood platelet-rich plasma preparation device shown includes an intermediate sleeve 4, an upper storage body 2 and a lower storage body 5. The upper storage body 2 and the lower storage body 5 are threadedly connected to the upper and lower ends of the intermediate sleeve 4 respectively. The upper end of the upper storage body 2 is threadedly connected to the upper storage cover 1, and the lower end of the lower storage body 5 is threadedly connected to the lower storage cover 6. The bottom of the lower storage cover 6 is set to an inward concave shape, so that red blood cells accumulate around the bottom, which facilitates the collection of red blood cells and improves the extraction efficiency.

[0029] A PRP channel 8 is provided in the upper storage body 2 and is tightened toward the upper storage cover 1. A red blood cell channel 9 is provided in the lower storage body 5 and is tightened toward the lower storage cover 6. Two upper and lower locking bolts are fixed in the middle sleeve 4. A mounting plate 10 is provided in the middle sleeve 4. The upper locking bolt 3 and the lower locking bolt 7 are symmetrically arranged relative to the mounting plate 10. Specifically, one installation method is that the lower locking bolt 7, the middle sleeve 4, and the mounting plate 10 are an integrated structure, the upper locking bolt 3 is clamped on the inner wall of the middle sleeve 4, and the inner wall of the middle sleeve 4 is provided with an annular groove (such as Figure 3 Another installation method is that the upper locking bolt 3 and the lower locking bolt 7 are connected to the mounting plate 10 by a buckle 14 (as shown); Figure 4 、 Figure 5 shown).

[0030] The upper locking bolt 3 and the lower locking bolt 7 are cones that cooperate with the PRP channel 8 and the red blood cell channel 9 respectively. A guide groove is provided on the cone to facilitate blood flow; the end faces of the upper locking bolt 3 and the lower locking bolt 7 are arc-shaped, and the end diameters are slightly larger than the diameters of the PRP channel and the red blood cell channel respectively, so that the locking bolts can be inserted into the channels with interference fit. When the upper locking bolt 3 is locked with the PRP channel 8, the upper storage body 2 and the upper storage cover 1 form a PRP storage chamber. When the lower locking bolt 7 is locked with the red blood cell channel 9, the lower storage body 5 and the lower storage cover 6 form a red blood cell storage chamber, and the middle sleeve 4 is a plasma storage chamber.

[0031] An injection port is set on the side of the upper storage body 2, and blood is injected through the injection port. The upper storage cover 1 is set as a hollow annular body. The PRP collection part 11 is stuck in the upper storage cover 1, and a sealing ring 13 is installed between the PRP collection part 11 and the upper storage cover 1.

[0032] The PRP suction port is set at the outward end of the PRP collection part 11, and the PRP collection part 11 is covered with a dust cover 12. The upper storage cover 1 is made of silicone. Since silicone has the property of deformation, the PRP suction port only needs to be set into a slit shape, and it is small enough to achieve that in the absence of other pressure, PRP cannot pass through the suction port. Only when the needle is sucked, the atmospheric pressure inside and outside is different, and then the silicone in the conductive hole is squeezed, so that the suction port opens a large enough space to extract the PRP. After the suction pressure is lost, the silicone deforms and refills the suction port, so that the suction port is re-sealed.

[0033] The blood is passed through the injection port on the side of the upper storage body 2 and filled into the plasma storage chamber of the middle sleeve 4. After the first separation, the lower locking bolt 7 in the middle sleeve 4 is locked with the red blood cell channel in the lower storage body 5 by adjusting the threads of the lower storage body 5 and the middle sleeve 4, so that the first separated blood is separated into layers. Subsequently, the lower locking bolt 7 is loosened by adjusting the threads of the lower storage body 5 and the middle sleeve 4, and the red blood cells fall into the lower storage cover 6 through the red blood cell channel. After the red blood cell extraction is completed, the lower locking bolt 7 is locked to isolate the lower storage body 5 and the middle sleeve 4 into two spaces. The lower storage cover 6 is removed to complete the collection of red blood cells. Collection; through the threaded adjustment of the upper storage body 2 and the middle sleeve 4, the upper locking bolt 3 in the middle sleeve 4 is stuck with the PRP channel in the upper storage body 2, so that the upper storage cover 1 and the upper storage body 2 form a sealed isolation space, and the plasma and platelets in the plasma storage chamber of the middle sleeve 4 are secondary layered and isolated. Then, through the threaded adjustment of the upper storage body 2 and the middle sleeve 4, the upper locking bolt 3 is loosened, and the PRP falls into the upper storage cover 2 through the PRP channel. After the PRP collection is completed, the upper locking bolt 3 is locked to isolate the middle sleeve 4 and the upper storage body 2 into two spaces, and finally the required PRP is extracted through the suction port with a needle.

[0034] It should be noted that when extracting PRP, the upper storage body 2 is in the vertical position at the bottom, and when extracting red blood cells, the lower storage body 5 is in the vertical position at the bottom.

[0035] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A platelet-rich plasma preparation device, characterized by: The invention comprises an intermediate sleeve (4), an upper storage body (2) and a lower storage body (5), wherein the upper storage body (2) and the lower storage body (5) are detachably connected to the upper end and the lower end of the intermediate sleeve (4), respectively; the upper end of the upper storage body (2) is detachably connected to the upper storage cover (1), and the lower end of the lower storage body (5) is detachably connected to the lower storage cover (6); a PRP channel (8) is provided in the upper storage body (2) and is tightened toward the upper storage cover (1); a red blood cell channel (9) is provided in the lower storage body (5) and is tightened toward the lower storage cover (6); two upper and lower locking bolts are fixed in the intermediate sleeve (4), the upper locking bolt (3) and the lower locking bolt (9) are fixed to the upper storage cover (1) and the lower storage cover (6) respectively; The locking bolt (7) is a cone that matches the PRP channel (8) and the red blood cell channel (9) respectively. When the upper locking bolt (3) matches and locks the PRP channel (8), the upper storage body (2) and the upper storage cover (1) form a PRP storage chamber. When the lower locking bolt (7) matches and locks the red blood cell channel (9), the lower storage body (5) and the lower storage cover (6) form a red blood cell storage chamber. The middle sleeve (4) is a plasma storage chamber. An injection port is provided on the side of the upper storage body (2). A PRP suction port is provided on the upper storage cover (1). The upper storage cover (1) is made of silicone. The PRP suction port is in the shape of a slit for inserting a needle.

2. The platelet-rich plasma preparation device according to claim 1, characterized in that: The middle sleeve (4) and the upper storage body (2), the middle sleeve (4) and the lower storage body (5), the upper storage body (2) and the upper storage cover (1), and the lower storage body (5) and the lower storage cover (6) are all connected by threads.

3. The platelet-rich plasma preparation device according to claim 1, wherein: The end faces of the upper locking bolt (3) and the lower locking bolt (7) are arc-shaped, and the diameters of the end portions are slightly larger than the diameters of the PRP channel and the red blood cell channel, respectively, so that the locking bolts can be inserted into the channels with interference fit.

4. The platelet-rich plasma preparation device according to claim 1, wherein: A mounting plate (10) is arranged in the intermediate sleeve (4), and the upper locking bolt (3) and the lower locking bolt (7) are symmetrically arranged relative to the mounting plate (10).

5. The platelet-rich plasma preparation device according to claim 4, characterized in that: The lower locking bolt (7), the middle sleeve (4) and the mounting plate (10) are an integrated structure, the upper locking bolt (3) is clamped on the inner wall of the middle sleeve (4), and an annular clamping groove is provided on the inner wall of the middle sleeve (4).

6. The platelet-rich plasma preparation device according to claim 4, characterized in that: The upper locking bolt (3) and the lower locking bolt (7) are clamped on the mounting plate (10) via a buckle (14).

7. The platelet-rich plasma preparation device according to claim 1, characterized in that: The bottom of the lower storage cover (6) is configured to be inwardly concave, so that red blood cells accumulate around the bottom, making it easier to collect the red blood cells and improving extraction efficiency.

8. The platelet-rich plasma preparation device according to claim 1, characterized in that: The upper storage cover (1) is configured as a hollow annular body, a PRP collection portion (11) is clamped inside the upper storage cover (1), the PRP suction port is provided at an outward end of the PRP collection portion (11), and the PRP collection portion (11) is covered with a dust cover (12).

9. The platelet-rich plasma preparation device according to claim 8, characterized in that: A sealing ring (13) is installed between the PRP collection part (11) and the upper storage cover (1).

10. The platelet-rich plasma preparation device according to claim 1, characterized in that: A guide groove is provided on the vertebral body of the locking bolt to facilitate blood flow.

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