A scaffold prepared by separating platelet-rich plasma
By designing a platelet-rich plasma separation and preparation scaffold, securingly installing a syringe, and using a three-way valve to switch the pipeline connection, the problem of blood layer mixing during the extraction process was solved, and the purity of the platelet layer was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN NANHAI DISTRICT PEOPLES HOSPITAL
- Filing Date
- 2025-05-09
- Publication Date
- 2026-05-26
AI Technical Summary
In existing technologies, when operators extract platelet-rich plasma, hand shaking causes different blood layers in the syringe to mix, resulting in a decrease in the purity of the platelet-rich plasma.
A platelet-rich plasma separation and preparation scaffold is designed, including a support frame, tubing, a first three-way valve, a first buckle, and a fixing ring. First and second syringes are securely installed, and the tubing is switched through the three-way valve to prevent blood layer mixing.
It improves the purity of platelet-rich plasma in the extracted platelet layer, and is simple and easy to use, preventing blood layer mixing inside the syringe.
Smart Images
Figure CN224271239U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of medical devices, and more specifically, to a stent prepared by separating platelet-rich plasma. Background Technology
[0002] Platelet-rich plasma (PRP) is a concentrated platelet solution extracted from autologous peripheral blood through centrifugation. It contains high concentrations of platelets, leukocytes, and fibrin. Platelets, once activated, can secrete various growth factors; leukocytes can prevent infection; and fibrin can build the three-dimensional structures needed for tissue repair. Current methods for preparing PRP generally involve collecting blood using a syringe, centrifuging the blood to separate it into three layers from top to bottom: a plasma layer, a platelet layer (including PRP), and a erythrocyte layer, followed by the extraction of each layer individually.
[0003] However, the process of extracting the plasma layer, platelet layer, and red blood cell layer one by one generally requires injection using a syringe containing the layered blood. During this action, the operator's hand may shake, which may cause the different blood layers in the syringe to mix, resulting in a decrease in the purity of the platelet-rich plasma in the extracted platelet layer.
[0004] Therefore, existing technologies need to be improved and developed. Utility Model Content
[0005] The purpose of this application is to provide a platelet-rich plasma separation and preparation stent, which aims to solve the problem that when the operator injects using a syringe containing layered blood, hand shaking may occur, which may cause different blood layers in the syringe to mix, thereby reducing the purity of platelet-rich plasma in the extracted platelet layer.
[0006] This application provides a platelet-rich plasma separation and preparation scaffold for extracting platelet-rich plasma, comprising:
[0007] Support frame;
[0008] The pipe is installed horizontally on the support frame and includes a first pipe section and a second pipe section;
[0009] The first three-way valve is installed on the support frame. Its first end and second end are respectively connected to one end of the first pipe section and one end of the second pipe section. Its third end is used to introduce layered blood. The first three-way valve is used to switch the connection object of its third end to its first end or its second end.
[0010] The first clip, mounted on the support frame, is used to clip the first syringe, which is connected to the other end of the first tubing segment through its injection port to draw platelet-rich plasma from the stratified blood.
[0011] The first fixing ring is fixedly installed on the support frame and is used to install the second syringe, which contains stratified blood. The second syringe is connected to the third end of the first three-way valve through the injection port to input the stratified blood into the pipeline.
[0012] The platelet-rich plasma separation and preparation scaffold provided in this application can stably install the first syringe and the second syringe on the scaffold, which can prevent the mixing of different blood layers in the second syringe during the platelet-rich plasma separation and preparation process, thereby improving the purity of platelet-rich plasma in the extracted platelet layer. Furthermore, this application is simple to operate and easy to use.
[0013] Optionally, the second pipe section includes a first sub-pipe section and a second sub-pipe section, with one end of the first sub-pipe section connected to the second end of the first three-way valve;
[0014] Platelet-rich plasma separation for scaffold preparation also includes:
[0015] The second three-way valve is installed on the support frame. Its first and second ends are respectively connected to the other end of the first sub-tube section and the first end of the second sub-tube section. Its third end is used to discharge plasma and red blood cells. The second three-way valve is used to switch the connection of its third end to its first or second end.
[0016] The second fixing ring, fixedly installed on the support frame, is used to install the third syringe, which is connected to the third end of the second three-way valve through its injection port to draw plasma and red blood cells from the stratified blood.
[0017] In this embodiment, the platelet-rich plasma separation and preparation stent of this application is provided with a second fixing ring, which can stably install the third syringe, thereby enabling the extraction of plasma and red blood cells.
[0018] Optionally, the second retaining ring is height-adjustably fixed on the support frame.
[0019] Optionally, the end of the first buckle is arc-shaped, and the inner diameter of the second fixing ring is larger than the inner diameter of the end of the first buckle.
[0020] In this embodiment, the inner diameter of the second fixing ring is larger than the inner diameter of the end of the first buckle, which enables the second fixing ring to be adapted to a larger syringe to meet the volume requirements of the plasma and red blood cell extraction process.
[0021] Optionally, the preparation of scaffolds from platelet-rich plasma also includes:
[0022] The first slider and the first three-way valve are fixedly installed on the first slider;
[0023] The slide rail is fixedly installed on the support frame. The first slider is horizontally slidably installed on the slide rail, and the horizontal sliding direction of the first slider on the slide rail is parallel to the axial direction of the pipe.
[0024] Optionally, the first buckle is fixedly mounted on the first slider.
[0025] Optionally, the first slider is provided with a positioning hole;
[0026] The slide rail is provided with multiple mounting holes, which are arranged in a linear array on the slide rail along the horizontal sliding direction of the first slider.
[0027] Platelet-rich plasma separation for scaffold preparation also includes:
[0028] Fasteners are fixedly installed in a positioning hole and a mounting hole to mount the first slider on the slide rail.
[0029] Optionally, the fastener is a pin.
[0030] Optionally, the preparation of scaffolds from platelet-rich plasma also includes:
[0031] The second clip, installed on the support frame, is used to clip and install the second pipe section.
[0032] Optionally, the first retaining ring is height-adjustably fixed on the support frame.
[0033] As can be seen from the above, the platelet-rich plasma separation and preparation stent provided in this application can stably install the first syringe and the second syringe on the stent, and can prevent the mixing of different blood layers in the second syringe during the platelet-rich plasma separation and preparation process, thereby improving the purity of platelet-rich plasma in the extracted platelet layer. In addition, this application is simple to operate and easy to use.
[0034] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description
[0035] Figure 1 This is a schematic diagram of a platelet-rich plasma separation and preparation stent provided in an embodiment of this application.
[0036] Figure 2 This is a schematic diagram of the structure of the first slider provided in an embodiment of this application.
[0037] Figure 3 This is a schematic diagram of the structure of the first slider provided in the embodiments of this application when the fastener is not visible.
[0038] Figure 4 This is a schematic diagram of the structure of the first syringe, the second syringe, and the third syringe provided in the embodiments of this application.
[0039] Labeling Explanation: 100, First Injector; 200, Second Injector; 300, Third Injector; 1, Support Frame; 2, Pipeline; 21, First Pipe Section; 22, Second Pipe Section; 221, First Sub-Pipe Section; 222, Second Sub-Pipe Section; 2211, First Branch Pipe Section; 2212, Second Branch Pipe Section; 3, First Three-Way Valve; 4, First Clip; 5, First Fixing Ring; 6, Second Fixing Ring; 7, Second Three-Way Valve; 8, First Slider; 81, Positioning Hole; 9, Slide Rail; 91, Mounting Hole; 92, Fastener; 101, Second Clip; 102, Third Three-Way Valve; 103, Second Slider; 104, Third Slider. Detailed Implementation
[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0041] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this application, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0042] like Figure 1 , Figure 2 and Figure 4 As shown, this application provides a platelet-rich plasma separation and preparation scaffold for extracting platelet-rich plasma, comprising:
[0043] Support frame 1;
[0044] Pipe 2 is horizontally installed on support frame 1 and includes first pipe section 21 and second pipe section 22;
[0045] The first three-way valve 3 is installed on the support frame 1. Its first end and second end are respectively connected to one end of the first pipe section 21 and one end of the second pipe section 22. Its third end is used to introduce layered blood. The first three-way valve 3 is used to switch the object connected to its third end to its first end or its second end.
[0046] The first buckle 4 is installed on the support frame 1 and is used to fasten the first syringe 100. The first syringe 100 is used to connect to the other end of the first tube segment 21 through its injection port to extract platelet-rich plasma from the stratified blood.
[0047] The first fixing ring 5 is fixedly installed on the support frame 1 and is used to install the second syringe 200. The second syringe 200 contains stratified blood and is used to connect to the third end of the first three-way valve 3 through the injection port to input stratified blood into the pipeline 2.
[0048] Specifically, the first syringe 100 is installed on the first buckle 4, and the injection port of the first syringe 100 is connected to the other end of the first tube segment 21. The second syringe 200 is installed on the first fixing ring 5, and the injection port of the second syringe 200 is connected to the third end of the first three-way valve 3. This securely installs the first syringe 100 and the second syringe 200, thereby completing the preparation work for platelet-rich plasma separation and preparation.
[0049] More specifically, the steps for separating and preparing platelet-rich plasma include: switching the connection of the third end of the first three-way valve 3 to its second end, so that the second tubing 22 is connected to the third end of the first three-way valve 3; injecting via the second syringe 200 until the plasma layer is completely inside the second tubing 22; switching the connection of the third end of the first three-way valve 3 to its first end, so that the first tubing 21 is connected to the third end of the first three-way valve 3; injecting via the second syringe 200 until the platelet layer is completely inside the first tubing 21; switching the connection of the third end of the first three-way valve 3 to its second end, so that the second tubing 22 is connected to the third end of the first three-way valve 3; and drawing via the first syringe 100 until the platelet layer is completely inside the first syringe 100, thus completing the extraction of platelet-rich plasma. Subsequently, injection can also be performed via the second syringe 200 until the red blood cell layer is completely inside the second tubing 22, thereby emptying the second syringe 200.
[0050] More specifically, since both the first syringe 100 and the second syringe 200 of this application are securely mounted on the support, the syringes will not shake during the extraction and injection operations. Therefore, during the platelet-rich plasma separation and preparation process, the different blood layers in the second syringe 200 will not mix. Thus, this application can improve the purity of platelet-rich plasma in the extracted platelet layer.
[0051] Furthermore, in the process of separating and preparing platelet-rich plasma, it is only necessary to switch the connection of the third end of the first three-way valve 3 to its first end or its second end, so as to switch the pipe section in the pipeline 2 connected to the third end of the first three-way valve 3, and perform the injection and extraction actions to separate the platelet layer from other blood layers. There is no need to switch the container connected to the second syringe 200. Therefore, this application is simple to operate and easy to use.
[0052] The platelet-rich plasma separation and preparation stent of this application can stably install the first syringe 100 and the second syringe 200 on the stent, which can prevent the mixing of different blood layers in the second syringe 200 during the platelet-rich plasma separation and preparation process, thereby improving the purity of platelet-rich plasma in the extracted platelet layer. In addition, this application is simple to operate and easy to use.
[0053] In some preferred embodiments, the second pipe section 22 includes a first sub-pipe section 221 and a second sub-pipe section 222, with one end of the first sub-pipe section 221 connected to the second end of the first three-way valve 3;
[0054] Platelet-rich plasma separation for scaffold preparation also includes:
[0055] The second three-way valve 7 is installed on the support frame 1. Its first end and second end are respectively connected to the other end of the first sub-tube section 221 and one end of the second sub-tube section 222. Its third end is used to discharge plasma and red blood cells. The second three-way valve 7 is used to switch the object connected to its third end to its first end or second end.
[0056] The second fixing ring 6 is fixedly installed on the support frame 1 and is used to install the third syringe 300. The third syringe 300 is used to connect to the third end of the second three-way valve 7 through its injection port to draw plasma and red blood cells from the stratified blood.
[0057] Specifically, when preparing for the separation and preparation of platelet-rich plasma, simply install the third syringe 300 on the second fixing ring 6 and connect the injection port of the third syringe 300 to the third end of the second three-way valve 7 to securely install the third syringe 300.
[0058] More specifically, in the process of platelet-rich plasma separation and preparation, when the plasma layer enters the second tube segment 22, it first enters the first sub-tube segment 221. Therefore, after injecting based on the second syringe 200 until the plasma layer completely enters the second tube segment 22, and switching the connection of the third end of the first three-way valve 3 to its first end, so that the first tube segment 21 is connected to the third end of the first three-way valve 3, the second three-way valve 7 switches the connection of its third end to its first end, so that the first sub-tube segment 221 is connected to the third end of the second three-way valve 7, and extracting based on the third syringe 300 until the plasma layer completely enters the third syringe 300, the plasma extraction can be achieved.
[0059] More specifically, red blood cells can be extracted simply by injecting the second syringe 200 until the red blood cell layer is completely inside the second tube segment 22, and then extracting the red blood cells using the third syringe 300 until the red blood cell layer is completely inside the third syringe 300.
[0060] In this embodiment, the platelet-rich plasma separation and preparation stent of this application is provided with a second fixing ring 6, which can stably install the third syringe 300, thereby enabling the extraction of plasma and red blood cells.
[0061] Preferably, the first sub-pipe section 221 includes a first branch pipe section 2211 and a second branch pipe section 2212, with one end of the first branch pipe section 2211 connected to the second end of the first three-way valve 3;
[0062] Platelet-rich plasma separation for scaffold preparation also includes:
[0063] The third three-way valve 102 is installed on the support frame 1, and its first end and second end are respectively connected to the other end of the first branch pipe section 2211 and one end of the second branch pipe section 2212.
[0064] In some preferred embodiments, the second retaining ring 6 is height-adjustably fixedly mounted on the support frame 1.
[0065] In this embodiment, the second fixing ring 6 of this application is height-adjustably fixedly mounted on the support frame 1, and the height of the second fixing ring 6 can be adjusted to adapt to syringes of different specifications.
[0066] In some preferred embodiments, the end of the first buckle 4 is arc-shaped, and the inner diameter of the second fixing ring 6 is larger than the inner diameter of the end of the first buckle 4.
[0067] Specifically, since the volume of the platelet layer is smaller than that of the plasma layer and the red blood cell layer, in this embodiment, the inner diameter of the second fixing ring 6 is larger than the inner diameter of the end of the first buckle 4, which allows the second fixing ring 6 to be adapted to a larger syringe to meet the volume requirements of the plasma and red blood cell extraction process.
[0068] In some preferred embodiments, the platelet-rich plasma separation and scaffold preparation further includes:
[0069] The first slider 8 and the first three-way valve 3 are fixedly installed on the first slider 8;
[0070] The slide rail 9 is fixedly installed on the support frame 1. The first slider 8 is horizontally slidably installed on the slide rail 9, and the horizontal sliding direction of the first slider 8 on the slide rail 9 is parallel to the axial direction of the pipe 2.
[0071] In this embodiment, the present application provides a first slider 8 and a slide rail 9, which can change the position of the first three-way valve 3 on the slide rail 9 to facilitate the installation of pipe sections of different lengths.
[0072] In some preferred embodiments, the first snap-fit 4 is fixedly mounted on the first slider 8.
[0073] In this embodiment, the first buckle 4 is fixedly installed on the first slider 8, so that the relative position of the first buckle 4 and the first slider 8 remains unchanged when the first slider 8 slides on the slide rail 9. Therefore, after adjusting the position of the first slider 8 on the slide rail 9, the specifications of the first syringe 100 do not need to be changed, making it easier to use.
[0074] Preferably, the platelet-rich plasma separation and scaffold preparation method further includes:
[0075] The second slider 103 and the second three-way valve 7 are fixedly installed on the second slider 103. The second slider 103 is horizontally slidably installed on the slide rail 9, and the horizontal sliding direction of the second slider 103 on the slide rail 9 is parallel to the axial direction of the pipe 2.
[0076] In this embodiment, the present application provides a second slider 103, which can change the position of the second three-way valve 7 on the slide rail 9 to facilitate the installation of tube segments of different lengths. Preferably, the platelet-rich plasma separation and preparation stent further includes:
[0077] The third slider 104 and the third three-way valve 102 are fixedly installed on the third slider 104. The third slider 104 is horizontally slidably installed on the slide rail 9, and the horizontal sliding direction of the third slider 104 on the slide rail 9 is parallel to the axial direction of the pipe 2.
[0078] In this embodiment, the present application provides a third slider 104, which can change the position of the third three-way valve 102 on the slide rail 9 to facilitate the installation of pipe sections of different lengths.
[0079] like Figure 3 As shown, in some preferred embodiments, the first slider 8 is provided with a positioning hole 81;
[0080] The slide rail 9 is provided with a plurality of mounting holes 91, which are arranged in a linear array on the slide rail 9 along the horizontal sliding direction of the first slider 8 on the slide rail 9;
[0081] Platelet-rich plasma separation for scaffold preparation also includes:
[0082] Fastener 92 is fixedly installed in positioning hole 81 and mounting hole 91 to mount first slider 8 on slide rail 9.
[0083] In this embodiment, the fastener 92 can be fixedly installed in different mounting holes 91 to adjust the mounting position of the first slider 8 on the slide rail 9.
[0084] In some preferred embodiments, fastener 92 is a pin.
[0085] In this embodiment, the fastener 92 can be easily inserted into the positioning hole 81 and the mounting hole 91 to be inserted into the slide rail 9.
[0086] In some preferred embodiments, the platelet-rich plasma separation and scaffold preparation further includes:
[0087] The second clip 101 is installed on the support frame 1 and is used to clip the second pipe section 22.
[0088] In this embodiment, the platelet-rich plasma separation and preparation stent of this application is provided with a second buckle 101, which can cooperate with the first three-way valve 3 to more securely install the second tube section 22 on the support frame 1.
[0089] In some preferred embodiments, the first retaining ring 5 is height-adjustably fixedly mounted on the support frame 1.
[0090] In this embodiment, the first fixing ring 5 of this application is height-adjustably fixedly mounted on the support frame 1, and the height of the first fixing ring 5 can be adjusted to adapt to syringes of different specifications.
[0091] As can be seen from the above, the platelet-rich plasma separation and preparation stent provided in this application can stably install the first syringe 100 and the second syringe 200 on the stent, which can prevent the mixing of different blood layers in the second syringe 200 during the platelet-rich plasma separation and preparation process, thereby improving the purity of platelet-rich plasma in the extracted platelet layer. Furthermore, this application is simple to operate and easy to use.
[0092] In the embodiments provided in this application, it should be understood that relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.
[0093] The above are merely embodiments of this application and are not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.
Claims
1. A scaffold for separating and preparing platelet-rich plasma, used for extracting platelet-rich plasma, characterized in that, include: Support frame (1); The pipe (2) is horizontally installed on the support frame (1) and includes a first pipe section (21) and a second pipe section (22). The first three-way valve (3) is installed on the support frame (1). Its first end and second end are respectively connected to one end of the first pipe section (21) and one end of the second pipe section (22). Its third end is used to introduce layered blood. The first three-way valve (3) is used to switch the connected object of its third end to its first end or its second end. The first buckle (4) is installed on the support frame (1) for buckling the first syringe (100), which is used to connect to the other end of the first tube segment (21) through its injection port to draw platelet-rich plasma from the stratified blood. The first fixing ring (5) is fixedly installed on the support frame (1) for installing the second syringe (200), which contains stratified blood and is used to connect to the third end of the first three-way valve (3) through the injection port to input stratified blood into the pipeline (2).
2. The platelet-rich plasma separation and scaffold preparation method according to claim 1, characterized in that, The second pipe section (22) includes a first sub-pipe section (221) and a second sub-pipe section (222), one end of the first sub-pipe section (221) being connected to the second end of the first three-way valve (3); The platelet-rich plasma separation and scaffold preparation method also includes: The second three-way valve (7) is installed on the support frame (1). Its first end and second end are respectively connected to the other end of the first sub-tube section (221) and one end of the second sub-tube section (222). Its third end is used to export plasma and red blood cells. The second three-way valve (7) is used to switch the connected object of its third end to its first end or second end. The second fixing ring (6) is fixedly installed on the support frame (1) for installing the third syringe (300), which is used to connect to the third end of the second three-way valve (7) through its injection port to draw plasma and red blood cells from the stratified blood.
3. The platelet-rich plasma separation and preparation stent according to claim 2, characterized in that, The second fixing ring (6) is height-adjustably fixedly installed on the support frame (1).
4. The platelet-rich plasma separation and scaffold preparation method according to claim 2, characterized in that, The end of the first buckle (4) is arc-shaped, and the inner diameter of the second fixing ring (6) is larger than the inner diameter of the end of the first buckle (4).
5. The platelet-rich plasma separation and scaffold preparation method according to claim 1, characterized in that, The platelet-rich plasma separation and scaffold preparation method also includes: The first slider (8) and the first three-way valve (3) are fixedly installed on the first slider (8); The slide rail (9) is fixedly installed on the support frame (1). The first slider (8) is horizontally slidably installed on the slide rail (9), and the horizontal sliding direction of the first slider (8) on the slide rail (9) is parallel to the axial direction of the pipe (2).
6. The platelet-rich plasma separation and preparation stent according to claim 5, characterized in that, Optionally, the first buckle (4) is fixedly mounted on the first slider (8).
7. The platelet-rich plasma separation and preparation stent according to claim 5, characterized in that, The first slider (8) is provided with a positioning hole (81); The slide rail (9) is provided with a plurality of mounting holes (91), and the plurality of mounting holes (91) are arranged in a linear array on the slide rail (9) along the horizontal sliding direction of the first slider (8) on the slide rail (9); The platelet-rich plasma separation and scaffold preparation method also includes: Fastener (92) is fixedly installed in positioning hole (81) and mounting hole (91) to mount first slider (8) on slide rail (9).
8. The platelet-rich plasma separation and preparation stent according to claim 7, characterized in that, The fastener (92) is a pin.
9. The platelet-rich plasma separation and preparation stent according to claim 1, characterized in that, The platelet-rich plasma separation and scaffold preparation method also includes: The second clip (101) is installed on the support frame (1) and is used to clip the second pipe section (22).
10. The platelet-rich plasma separation and preparation scaffold according to claim 1, characterized in that, The first fixing ring (5) is fixedly installed on the support frame (1) with adjustable height.