A platelet-rich plasma preparation device

Abstract

This utility model relates to a platelet-rich plasma (PRP) preparation device, comprising a main body, a first cap component, a blocking component, and a second cap component. Its advantages lie in that, after centrifugation of the blood, the second cap component, threadedly connected to the main body, allows for rotation, adjusting the volume of the lower cavity of the main body. This helps to position the erythrocyte sedimentation rate (ESR) layer within the communicating cavity, ensuring the plasma is entirely located in the upper cavity, facilitating subsequent extraction by medical personnel. Furthermore, by connecting the blocking component to the first cap component, which is also threadedly connected to the main body, the first cap component can be rotated to seal the upper end of the communicating cavity. This ensures that only the plasma located in the upper cavity is extracted during extraction, improving operational convenience.

Description

Technical Field

[0001] This utility model relates to the field of platelet-rich plasma preparation technology, and in particular to a platelet-rich plasma preparation device. Background Technology

[0002] Platelet-rich plasma (PRP) is a platelet concentrate obtained by centrifuging autologous whole blood. PRP contains a large number of growth factors and proteins, which can accurately locate the site of injury, control inflammation, and promote cell and tissue regeneration in various ways, thereby accelerating the repair of damaged tissues. It is widely used in clinical applications, such as bone and joint repair, repair of large-area burns, and cosmetic surgery.

[0003] In the existing technology, the preparation method of PRP is usually a two-stage centrifugation method. That is, after drawing blood, the blood is injected into a container through a syringe. The first centrifugation separates the red blood cells, platelets, and plasma into layers. The platelets and plasma are then transferred to a new container for a second centrifugation. After the second centrifugation, the platelet-rich plasma (PRP) at the bottom of the new container is extracted using a syringe.

[0004] When blood is centrifuged, it separates into upper plasma and lower erythrocyte sedimentation. A thin, buffy coat composed of platelets and lymphocytes forms between these two layers. The lymphocyte lineage includes both non-granular cells and granular cells, while some monocytes contain granular cells that are stem cells. Furthermore, various growth hormones secreted by platelets participate in the activation of stem cells.

[0005] However, previous methods for collecting stem cells mainly involved inserting a needle into the patient's arm for up to five hours to extract blood, or extracting directly from the patient's bone marrow. These methods had drawbacks such as the potential risks associated with general anesthesia and the pain endured by the patient. Furthermore, peripheral blood contains a very small number of hematopoietic stem cells and mesenchymal stem cells. When peripheral blood is centrifuged, these hematopoietic stem cells and mesenchymal stem cells tend to concentrate in the yellow layer of the blood clot.

[0006] Therefore, using the flank layer containing stem cells extracted from the patient's own peripheral blood is safer for the patient because it does not require in vitro stem cell culture. Furthermore, since the surgery uses homogeneous peripheral blood, there is no risk of rejection. Moreover, because only a small amount of blood is needed, it not only reduces the patient's pain but also avoids the potential risks of general anesthesia.

[0007] Currently, the yellow layer of blood clots is generally extracted in test tubes. However, the volume of the yellow layer is only about 1% of the blood, so it is not easy to identify in test tubes. Even if the yellow layer can be identified, it is still difficult to separate and extract it from red blood cells. Utility Model Content

[0008] The purpose of this invention is to address the shortcomings of existing technologies by providing a platelet-rich plasma preparation device, thereby solving the problems in related technologies such as the inability to easily separate and extract hematopoietic stem cells and mesenchymal stem cells from the erythrocyte sedimentation rate (ESR) layer, which includes stem cells in the blood.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0010] This utility model provides a platelet-rich plasma preparation device, comprising:

[0011] The device body includes an upper cavity, a connecting cavity, and a lower cavity, and the upper cavity, the connecting cavity, and the lower cavity are connected in sequence.

[0012] The first cover component is disposed on the main body of the device and is detachably connected to the main body of the device. It is used to seal the end of the upper cavity and to allow the syringe to inject blood into the main body of the device and to allow the syringe to extract the prepared platelet-rich plasma from the main body of the device.

[0013] A blocking component, wherein the blocking component is disposed inside the main body of the device and connected to the first cover component, is used to block the communicating cavity;

[0014] The second cover component is disposed on the main body of the device and is detachably connected to the main body of the device, and is used to seal the end of the lower cavity and to squeeze the separated plasma upward.

[0015] In some embodiments, the upper cavity and the lower cavity are arranged in a funnel shape at their close ends, and the connecting cavity is arranged in a bottleneck shape.

[0016] In some embodiments, the device body further includes:

[0017] The first scale mark is located on the outer wall of the upper cavity for observation by medical personnel.

[0018] The second scale mark is located on the outer wall of the lower cavity and is used for observation by medical staff.

[0019] In some embodiments, the first cover component includes:

[0020] The first cover body is disposed on the main body of the device and is detachably connected to the main body of the device, and is used to seal the end of the upper cavity and to allow the syringe to inject blood into the main body of the device and to allow the syringe to extract the prepared platelet-rich plasma from the main body of the device.

[0021] A sealing element is disposed on the first cover body and is used to seal holes in the first cover body.

[0022] In some embodiments, the first cover body includes:

[0023] The first through hole is located in the first cover body and is used for injecting blood into the device body with a syringe and for extracting prepared platelet-rich plasma from the device body with a syringe.

[0024] The second through hole is opened in the first cover body and is used to relieve pressure on the main body of the device;

[0025] The third through hole is located at the center of the first cover body and is used to install the plugging component.

[0026] In some embodiments, the blocking component includes:

[0027] A blocking component, the first end of which is connected to the first cover component, and the second end of which extends into the interior of the device body and blocks the communicating cavity under the action of the second cover component;

[0028] A snap-fit ​​component is disposed at the first end of the plugging component and is used to snap the plugging component to the first cover component.

[0029] In some embodiments, the second cover component includes:

[0030] The second cover body is disposed on the main body of the device and is detachably connected to the main body of the device, and is used to close the end of the lower cavity;

[0031] A squeezing element is disposed inside the main body of the device and connected to the second cover body, for squeezing the separated plasma upward under the action of the second cover body.

[0032] In some of these embodiments, it also includes:

[0033] A connecting component is disposed between the blocking component and the first cover component, for movably connecting the blocking component and the first cover component.

[0034] In some embodiments, the connecting component includes:

[0035] A bracket, which is disposed on the first cover component, is used to install parts;

[0036] A pusher is coaxially connected to the blocking component, and the pusher passes through the support component to drive the blocking component to block the communicating cavity;

[0037] A limiting member is provided on the bracket component to fix the position of the pressing member on the bracket component.

[0038] In some embodiments, the connecting component further includes:

[0039] A reset member is provided on the push member and located between the first cover member and the push member, for resetting the push member.

[0040] The present invention adopts the above technical solution and has the following technical effects compared with the prior art:

[0041] This invention discloses a platelet-rich plasma (PRP) preparation device. After centrifuging blood, a second cover component is provided and threadedly connected to the main body of the device. This allows the second cover component to be rotated, adjusting the volume of the lower cavity of the main body. This positions the erythrocyte sedimentation rate (ESR) layer within the communicating cavity, ensuring that the plasma is entirely located in the upper cavity of the main body, facilitating subsequent extraction by medical personnel. Furthermore, by connecting a blocking component to the first cover component and threadedly connecting the first cover component to the main body of the device, the first cover component can be rotated to seal the upper end of the communicating cavity. This ensures that during extraction by medical personnel, only the plasma located in the upper cavity is extracted, improving operational convenience. Attached Figure Description

[0042] Figure 1 This is a schematic diagram (I) of a platelet-rich plasma preparation device according to an embodiment of the present invention;

[0043] Figure 2 This is a cross-sectional view (a) of a platelet-rich plasma preparation apparatus according to an embodiment of the present invention;

[0044] Figure 3 This is a schematic diagram of the first cover component and the plugging component according to an embodiment of the present utility model;

[0045] Figure 4This is a schematic diagram of the first cover body according to an embodiment of the present utility model;

[0046] Figure 5 This is a schematic diagram of the second cover component according to an embodiment of the present utility model;

[0047] Figure 6 This is a schematic diagram (II) of a platelet-rich plasma preparation device according to an embodiment of the present invention;

[0048] Figure 7 This is a cross-sectional view (II) of a platelet-rich plasma preparation device according to an embodiment of the present invention;

[0049] Figure 8 yes Figure 7 The enlarged view of part A in the middle mainly shows the structure of the connecting component.

[0050] The reference numerals in the attached drawings are as follows: 100, main body of the device; 110, upper cavity; 120, connecting cavity; 130, lower cavity;

[0051] 200. First cover component; 210. First cover body; 211. First through hole; 212. Second through hole; 213. Third through hole; 220. Sealing element;

[0052] 300. Blocking component; 310. Blocking part; 320. Snap-fit ​​part;

[0053] 400. Second cover component; 410. Second cover body; 420. Extrusion component;

[0054] 500. Connecting component; 510. Support component; 511. Guide groove; 512. Limiting groove; 520. Pressing component; 530. Limiting component; 540. Reset component. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of this application clearer, the application is described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application without inventive effort are within the scope of protection of this application.

[0056] Obviously, the accompanying drawings described below are merely some examples or embodiments of this application. Those skilled in the art can apply this application to other similar scenarios based on these drawings without any inventive effort. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, any changes to design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as insufficient disclosure of the content of this application.

[0057] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0058] Example 1

[0059] An illustrative embodiment of this utility model, such as Figure 1 and Figure 2 As shown, a platelet-rich plasma (PRP) preparation device includes a device body 100, a first cover component 200, a blocking component 300, and a second cover component 400. The device body 100 includes an upper cavity 110, a connecting cavity 120, and a lower cavity 130, which are sequentially connected. The first cover component 200 is disposed on and detachably connected to the device body 100, and is used to seal the end of the upper cavity 110 and to allow a syringe to inject blood into the device body 100 and to allow a syringe to extract the prepared PRP from the device body 100. The blocking component 300 is disposed inside the device body 100 and connected to the first cover component 200, and is used to block the connecting cavity 120. The second cover component 400 is disposed on and detachably connected to the device body 100, and is used to seal the end of the lower cavity 130 and to squeeze the separated plasma upwards.

[0060] like Figure 2 As shown, the main body 100 of the device is generally cylindrical, and the upper cavity 110 and the lower cavity are respectively formed at the first end and the second end of the main body 100 of the device; it should be noted that the first end and the second end of the main body 100 of the device are the two ends of its length direction.

[0061] In some of these embodiments, the device body 100 includes, but is not limited to, a transparent columnar shape.

[0062] Specifically, the upper cavity 110 and the lower cavity 130 are arranged in a funnel shape at their close ends, and the connecting cavity 120 is arranged in a bottleneck structure.

[0063] More specifically, the diameter of the upper cavity 110 decreases as it approaches the lower cavity 130, while the diameter of the lower cavity 130 decreases as it approaches the upper cavity 110. It should be noted that this structure allows the separated blood to pass smoothly through the channel of the connecting cavity 120 (i.e., the blood separated along the inclined surface of the entrance of the connecting cavity 120 can be smoothly pushed upward through the second cover component 400).

[0064] More specifically, the connecting cavity 120 is formed between the upper cavity 110 and the lower cavity 130. It should be noted that the volume of the connecting cavity 120 is smaller than that of the upper cavity 110 and the lower cavity 130, which makes the thickness of the erythrocyte sedimentation rate brown-yellow layer at the boundary between red blood cells and plasma after centrifugation greater and the boundary more clearly visible.

[0065] Furthermore, the main body 100 of the device also includes a first scale mark and a second scale mark. The first scale mark is located on the outer wall of the upper cavity 110 for observation by medical personnel; the second scale mark is located on the outer wall of the lower cavity 130 for observation by medical personnel.

[0066] Specifically, the first scale mark is integrally formed on the outer wall of the main body 100 of the device, and the first scale mark allows medical staff to intuitively observe the liquid level information in the upper cavity 110.

[0067] In some of these embodiments, the first scale indicates, but is not limited to, a milliliter scale.

[0068] Specifically, the second scale mark is integrally formed on the outer wall of the device, and the second scale mark allows medical staff to intuitively observe the liquid level information in the lower cavity 130.

[0069] In some of these embodiments, the second scale indicates, but is not limited to, milliliter scales.

[0070] like Figure 3 and Figure 4As shown, the first cover component 200 includes a first cover body 210 and a sealing element 220. The first cover body 210 is disposed on the device body 100 and detachably connected to the device body 100, and is used to seal the end of the upper cavity 110 and to allow the syringe to inject blood into the device body 100 and to allow the syringe to draw prepared platelet-rich plasma from the device body 100. The sealing element 220 is disposed on the first cover body 210 and is used to seal the holes on the first cover body 210.

[0071] Specifically, the first cap body 210 is configured as a bottle cap structure. The first cap body 210 is threadedly connected to the first end of the device body 100, so that by rotating the first cap body 210, the first cap body 210 can move forward and backward at the first end of the device body 100.

[0072] In some of these embodiments, the first cover body 210 includes, but is not limited to, a cover body.

[0073] It should be noted that the size and structure of the first cover body 210 can be adapted to the size and structure of the device body 100; it should be understood that the inner diameter of the first cover body 210 is the same as the outer diameter of the first end of the device body 100.

[0074] Furthermore, the first cover body 210 also includes a first through hole 211, a second through hole 212, and a third through hole 213. The first through hole 211 is located in the first cover body 210 and is used for injecting blood into the device body 100 using a syringe and for drawing prepared platelet-rich plasma from the device body 100 using a syringe. The second through hole 212 is located in the first cover body 210 and is used to depressurize the device body 100. The third through hole 213 is located at the center of the first cover body 210 and is used to install a plugging component 300.

[0075] Specifically, a first through hole 211 is formed through the first cover body 210, allowing the syringe to pass through the first through hole 211 and extend into the interior of the device body 100; it should be noted that the shape and size of the first through hole 211 are matched with the standardized end of the syringe.

[0076] Specifically, the second through hole 212 is formed through the first cover body 210. During the process of injecting blood into the device body 100 with the syringe, the gas inside the device body 100 can be discharged through the second through hole 212, thereby improving the efficiency of injection into the device body 100.

[0077] Specifically, the third through hole 213 is formed through the first cover body 210, and the size of the third through hole 213 is adapted to the size of the plug 310 in the plug component 300.

[0078] Furthermore, the first cover body 210 also includes anti-slip texture. The anti-slip texture is integrally formed on the outer arc-shaped outer wall of the first cover body 210, and the anti-slip texture is arranged around the circumference of the first cover body 210.

[0079] It should be noted that the anti-slip texture provides some assistance to medical staff in operating the platelet-rich plasma preparation device, reducing the likelihood of slippage when rotating the first cover body 210.

[0080] Specifically, the sealing element 220 includes a connecting strip, a first sealing plug, and a second sealing plug. The connecting strip is connected to the first cover body 210, and its two ends are connected to the first sealing plug and the second sealing plug, respectively. The first sealing plug is fastened to the first through hole 211 to seal the first through hole 211. The second sealing plug is fastened to the second through hole 212 to seal the second through hole 212.

[0081] More specifically, the first end and the second end of the connecting strip are connected to the first sealing plug and the second sealing plug, respectively, and a hollow circular hole is formed in the middle of the connecting strip. The hollow circular hole allows the blocking component 300 to pass through and is fixed to the first cover body 210 through the end of the blocking component 300.

[0082] It should be noted that the first and second ends of the connecting strip are the two ends in its length direction, respectively.

[0083] More specifically, the first sealing plug is integrally formed with the first end of the connecting strip, and the first sealing plug is screwed onto the first through hole 211, so that the airtightness of the device body 100 can be achieved without injection or extraction.

[0084] In some of these embodiments, the first sealing plug includes, but is not limited to, a rubber plug.

[0085] More specifically, the second sealing plug is integrally formed with the second end of the connecting strip, and the second sealing plug is screwed onto the second through hole 212, so that the airtightness of the device body 100 can be achieved without injection or extraction.

[0086] In some of these embodiments, the second sealing plug includes, but is not limited to, a rubber plug.

[0087] like Figure 3 As shown, the blocking component 300 includes a blocking member 310 and a snap-fit ​​member 320. The first end of the blocking member 310 is connected to the first cover component 200, and the second end of the blocking member 310 extends into the interior of the device body 100, blocking the communicating cavity 120 under the action of the second cover component 400. The snap-fit ​​member 320 is disposed at the first end of the blocking member 310 and is used to snap the blocking member 310 to the first cover component 200.

[0088] Specifically, the second end of the plugging member 310 is inserted into the interior of the device body 100 through the third through hole 213, and the first end of the plugging member 310 is connected to the first cover body 210 through the snap-fit ​​member 320.

[0089] It should be noted that the first end and the second end of the plugging component 310 are the two ends of its length direction, respectively.

[0090] In some of these embodiments, the blocking element 310 includes, but is not limited to, a blocking rod.

[0091] In addition, medical staff can rotate the first cover body 210 so that the first cover body 210 can drive the blocking member 310 to move back and forth in the vertical direction inside the device body 100. When the first cover body 210 is tightened, the second end of the blocking member 310 can extend into the connecting cavity 120, thereby blocking the connecting cavity 120.

[0092] Specifically, the snap-fit ​​part 320 is integrally formed on the second end of the plug part 310, and the snap-fit ​​part 320 can snap into the inner wall of the third through hole 213, thereby realizing the mutual connection between the plug part 310 and the first cover body 210.

[0093] In some embodiments, the snap-fit ​​element 320 includes, but is not limited to, snap-fit ​​strips.

[0094] like Figure 5 As shown, the second cover component 400 includes a second cover body 410 and a squeezing member 420. The second cover body 410 is disposed on the device body 100 and detachably connected to the device body 100, and is used to close the end of the lower cavity 130; the squeezing member 420 is disposed inside the device body 100 and connected to the second cover body 410, and is used to squeeze the separated plasma upward under the action of the second cover body 410.

[0095] Specifically, the second cap body 410 is configured as a bottle cap structure. The second cap body 410 is threadedly connected to the second end of the device body 100, so that by rotating the second cap body 410, the second cap body 410 can move forward and backward at the second end of the device body 100.

[0096] In some of these embodiments, the second cover body 410 includes, but is not limited to, a cover body.

[0097] It should be noted that the size and structure of the second cover body 410 can be adapted to the size and structure of the device body 100; it should be understood that the inner diameter of the second cover body 410 is the same as the outer diameter of the second end of the device body 100.

[0098] Furthermore, the second cover body 410 also includes anti-slip texture. The anti-slip texture is integrally formed on the outer arc-shaped outer wall of the second cover body 410, and the anti-slip texture is arranged around the circumference of the second cover body 410.

[0099] It should be noted that the anti-slip texture provides some assistance to medical staff in operating the platelet-rich plasma preparation device, reducing the likelihood of slippage when rotating the second cover body 410.

[0100] Specifically, the end of the extrusion member 420 is installed inside the second cover body 410 by means of bonding or other methods, and there is a certain gap between the side wall of the extrusion member 420 and the inner wall of the second cover body 410, which facilitates the threaded connection between the second cover body 410 and the device body 100; in addition, the extrusion member 420 extends into the lower cavity 130 of the device body 100, and the circumferential surface of the extrusion member 420 is in close contact with the inner surface of the lower cavity 130.

[0101] In some of these embodiments, the extrusion member 420 includes, but is not limited to, a rubber stopper.

[0102] It should be noted that when the second cover body 410 is engaged with the second end of the device body 100, a sealed lower cavity 130 is formed. When the second cover body 410 rotates, it moves closer to the first end of the device body 100, causing the pressing member 420 to move closer to the first end of the device body 100 along with the second cover body 410, thereby increasing the space within the lower cavity 130 of the device body 100. Conversely, when the second cover body 410 rotates in the opposite direction, it moves away from the first end of the device body 100, causing the pressing member 420 to move away from the first end of the device body 100 along with the second cover body 410, thereby decreasing the space within the lower cavity 130 of the device body 100. In other words, the volume of the lower cavity 130 of the device body 100 can be adjusted using the second cover body 410.

[0103] The usage method of this embodiment is as follows:

[0104] First, an anticoagulant is drawn into a syringe before blood is drawn. The appropriate amount of anticoagulant is approximately 10% of the blood volume to be collected. Then, blood is drawn from the patient using the syringe containing the anticoagulant. After blood collection, the syringe needle is removed, and the syringe discharge port is brought into close contact with the first through-hole 211 formed on the first cap body 210 of the platelet-rich plasma preparation device, injecting the blood into the device body 100. It should be noted that the tight contact between the syringe discharge port and the first through-hole 211 is to prevent blood ejected from the syringe from mistakenly leaking out of the device body 100.

[0105] Here, when the second end of the plug 310 blocks the communicating cavity 120, injecting blood into the device body 100 using a syringe may be difficult. It should be noted that, in order to ensure smooth injection of blood into the device body 100, the first cover body 210 has a second through hole 212, through which air can escape to the outside, improving injection efficiency.

[0106] Furthermore, when the second end of the plug 310 is in close contact with the upper end of the communicating cavity 120 of the device body 100, the blood injected into the device body 100 cannot flow into the lower cavity 130 because the communicating cavity 120 is blocked by the second end of the plug 310. Therefore, during blood injection, the first cap body 210 is rotated a certain amount in the opposite direction to ensure that there is a certain gap between the plug 310 and the upper end of the communicating cavity 120, and that the connection between the first cap body 210 and the first end of the device body 100 is not loosened. Then, the blood injection proceeds smoothly, and the injected blood can flow down through the communicating cavity 120 into the interior of the lower cavity 130.

[0107] Furthermore, after injecting blood into the device body 100, the first through hole 211 and the second through hole 212 of the first cover body 210 are sealed by the sealing member 220, and then centrifugation is performed. At this time, since the connecting cavity 120 is not blocked, when the blood is centrifuged, red blood cells descend to the lower cavity 130 of the device body 100, and plasma is located in the upper cavity 110 of the device body 100, with a thin layer of erythrocyte sedimentation rate (ESR) brownish-yellow layer between the plasma and red blood cells. The reason why plasma is collected in the upper cavity 110 of the device body 100 during centrifugation is that it is injected by adjusting the second cover body 410 before centrifugation. The lower cavity 130 is set according to the proportion of plasma in the blood. Here, for more precise separation, centrifugation can be repeated a predetermined number of times.

[0108] Subsequently, the volume of the lower cavity 130 of the device body 100 is adjusted by rotating the second cover body 410 to position the erythrocyte sedimentation rate (ESR) brown-yellow layer within the communicating cavity 120. Therefore, the thin ESR brown-yellow layer accumulates in the communicating cavity 120, and its relatively small volume results in increased thickness at the top and bottom, allowing the upper and lower layers of red blood cells to be distinguished from the plasma.

[0109] Then, by rotating the first cover body 210, the first cover body 210 moves the plug 310, thereby causing the second end of the plug 310 to descend and come into close contact with the inner wall of the communicating cavity 120, so that the plasma and the brownish-yellow layer of erythrocyte sedimentation rate are separated; then, the seal 220 on the first through hole 211 is removed, and the syringe is inserted into the inside of the device body 100 through the first through hole 211 to extract the plasma.

[0110] The advantage of this embodiment is that, after centrifuging the blood, by setting a second cover component and threading it to the main body of the device, the volume of the lower cavity of the main body of the device can be adjusted by rotating the second cover component, so that the erythrocyte sedimentation rate (ESR) is positioned layer by layer in the communicating cavity, thereby ensuring that the plasma is completely located in the upper cavity of the main body of the device, which facilitates subsequent extraction by medical personnel. In addition, by connecting the blocking component to the first cover component and threading the first cover component to the main body of the device, the first cover component can be rotated, so that the blocking component can seal the upper end of the communicating cavity, thereby extracting only the plasma located in the upper cavity during the extraction process by medical personnel, improving the convenience of operation.

[0111] Example 2

[0112] This embodiment is a modified embodiment of embodiment 1, the main difference being that it also includes a connecting component 500.

[0113] like Figure 6 and Figure 7 As shown, a platelet-rich plasma preparation apparatus further includes a connecting component 500. The connecting component 500 is disposed between a blocking component 300 and a first cover component 200, and is used to movably connect the blocking component 300 and the first cover component 200.

[0114] like Figure 8 As shown, the connecting component 500 includes a bracket 510, a pusher 520, and a limiting member 530. The bracket 510 is disposed on the first cover component 200 and is used to install components; the pusher 520 is coaxially connected to the blocking component 300 and passes through the bracket 510, used to drive the blocking component 300 to block the communicating cavity 120; the limiting member 530 is disposed on the bracket component and is used to fix the position of the pusher 520 on the bracket 510.

[0115] Specifically, the bracket 510 is a hollow cylindrical structure, and the bracket 510 is installed on the top wall of the first cover body 210 by means of bonding, riveting or integral molding, and the bracket 510 allows the plugging member 310 and the pressing member 520 to pass through.

[0116] In some of these embodiments, the support member 510 includes, but is not limited to, a hollow cylinder.

[0117] Furthermore, the support member 510 also includes a guide groove 511 and a limiting groove 512. The guide groove 511 is formed on the inner wall of the support member 510 and is vertically oriented. The guide groove 511 is embedded in the limiting member 530 to guide the pusher 520. The limiting groove 512 is formed on the inner wall of the support member 510 and communicates with the guide groove 511. The limiting groove 512 and the guide groove 511 combine to form an L-shaped structure and are embedded in the limiting member 530 to fix the pusher 520. That is, when the limiting member 530 is embedded in the limiting groove 512, the second end of the blocking member 310 blocks the upper end of the communicating cavity 120.

[0118] Specifically, the longitudinal section of the pusher 520 is arranged in a cross structure. The pusher 520 is coaxially fixed to the first end of the blockage member 310 by means of bonding, riveting or integral molding, and the pusher 520 can drive the device body 100 on the blockage member 310 to move back and forth.

[0119] In some of these embodiments, the actuator 520 includes, but is not limited to, a rod.

[0120] Specifically, the limiting member 530 is integrally formed on the side wall of the circular plate of the pressing member 520, and the limiting member 530 can be embedded and cooperate with the guide groove 511 and the limiting groove 512 to limit the pressing member 520.

[0121] In some embodiments, the limiting member 530 includes, but is not limited to, a limiting block.

[0122] Furthermore, the connecting component 500 also includes a reset component 540. The reset component 540 passes through the pusher 520 and is located between the first cover component 200 and the pusher 520, and is used to reset the pusher 520.

[0123] Specifically, the reset member 540 is coaxially inserted through the push member 520 and located between the first cover body 210 and the push member 520. The first end of the reset member 540 is connected to the first cover body 210, and the second end of the reset member 540 is connected to the push member 520. The reset member 540 can automatically separate the second end of the blockage member 310 from the communicating cavity 120.

[0124] In some embodiments, the reset member 540 includes, but is not limited to, a spring.

[0125] It should be noted that using a pressing motion to block the connecting cavity 120 with the plug 310 is simpler and more convenient than rotating the first cover body 210. In addition, rotating the first cover body 210 may cause the device body 100 to shake, which may result in the blood being remixed after separation. However, pressing the plug 310 can prevent the device body 100 from shaking and effectively prevent the blood from being remixed after separation.

[0126] The usage method of this embodiment is as follows:

[0127] In actual operation, when it is necessary to close the connecting cavity 120 with the blocking component 310, medical staff press down on the pressing component 520, so that the limiting component 530 moves along the guide groove 511 to its bottom, and rotate the pressing component 520, so that the limiting component 530 is embedded in the limiting groove 512, thereby realizing the closure of the connecting cavity 120 by the blocking component 310.

[0128] Without the need for the plug 310 to seal the connecting cavity 120, medical staff can rotate the push button 520, causing the limiting member 530 to slide out of the limiting groove 512. The reset member 540 will automatically push the push button 520 upward, thereby separating the plug 310 from the connecting cavity 120.

[0129] The advantage of this embodiment is that existing blocking methods, which involve rotating the first cap, may cause the device to shake, resulting in the remixing of the separated blood. However, by pressing the blocking component, the shaking of the device can be avoided, effectively preventing the remixing of the separated blood.

[0130] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0131] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A platelet-rich plasma preparation device, characterized in that, include: The device body includes an upper cavity, a connecting cavity, and a lower cavity, and the upper cavity, the connecting cavity, and the lower cavity are connected in sequence. The first cover component is disposed on the main body of the device and is detachably connected to the main body of the device. It is used to seal the end of the upper cavity and to allow the syringe to inject blood into the main body of the device and to allow the syringe to extract the prepared platelet-rich plasma from the main body of the device. A blocking component, wherein the blocking component is disposed inside the main body of the device and connected to the first cover component, is used to block the communicating cavity; The second cover component is disposed on the main body of the device and is detachably connected to the main body of the device, and is used to close the end of the lower cavity and to squeeze the separated plasma upward; A connecting component is disposed between the blocking component and the first cover component, for movably connecting the blocking component and the first cover component; The connecting component includes: A bracket, which is disposed on the first cover component, is used to install parts; A pusher is coaxially connected to the blocking component, and the pusher passes through the support component to drive the blocking component to block the communicating cavity; A limiting member is provided on the bracket member to fix the position of the push member on the bracket member; A reset member is provided on the push member and located between the first cover member and the push member, for resetting the push member.

2. The platelet-rich plasma preparation apparatus according to claim 1, characterized in that, The upper cavity and the lower cavity are arranged in a funnel shape at their close ends, and the connecting cavity is arranged in a bottleneck structure.

3. The platelet-rich plasma preparation apparatus according to claim 1, characterized in that, The main body of the device also includes: The first scale mark is located on the outer wall of the upper cavity for observation by medical personnel. The second scale mark is located on the outer wall of the lower cavity and is used for observation by medical staff.

4. The platelet-rich plasma preparation apparatus according to claim 1, characterized in that, The first cover component includes: The first cover body is disposed on the main body of the device and is detachably connected to the main body of the device, and is used to seal the end of the upper cavity and to allow the syringe to inject blood into the main body of the device and to allow the syringe to extract the prepared platelet-rich plasma from the main body of the device. A sealing element is disposed on the first cover body and is used to seal holes in the first cover body.

5. The platelet-rich plasma preparation apparatus according to claim 4, characterized in that, The first cover body includes: The first through hole is located in the first cover body and is used for injecting blood into the device body with a syringe and for extracting prepared platelet-rich plasma from the device body with a syringe. The second through hole is opened in the first cover body and is used to relieve pressure on the main body of the device; The third through hole is located at the center of the first cover body and is used to install the plugging component.

6. The platelet-rich plasma preparation apparatus according to claim 1, characterized in that, The blocking component includes: A blocking component, the first end of which is connected to the first cover component, and the second end of which extends into the interior of the device body and blocks the communicating cavity under the action of the second cover component; A snap-fit ​​component is disposed at the first end of the plugging component and is used to snap the plugging component to the first cover component.

7. The platelet-rich plasma preparation apparatus according to claim 1, characterized in that, The second cover component includes: The second cover body is disposed on the main body of the device and is detachably connected to the main body of the device, and is used to close the end of the lower cavity; A squeezing element is disposed inside the main body of the device and connected to the second cover body, for squeezing the separated plasma upward under the action of the second cover body.

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