Auxiliary PRP extraction device

Abstract

The utility model belongs to the technical field of centrifugal equipment, and particularly relates to an auxiliary PRP extraction device. Comprising a base, a connecting rod is connected to the top of the base, and a support is arranged at the top of the connecting rod; a lower mounting groove and an upper mounting groove which are coaxial in the vertical direction are respectively formed in the base and the support, and injectors with conventional sizes can be accommodated in the lower mounting groove and the upper mounting groove; the device further comprises a spiral push rod capable of moving up and down in the vertical direction relative to the upper mounting groove. The auxiliary PRP extraction device provided by the utility model can be directly matched and applied to a specific centrifugal machine, a spiral pushing means is adopted, the pushing pressure impact force can be reduced, and the damage of pressure to active cell components is reduced, so that the extraction dosage is effectively controlled, the extraction rate can be ensured, and the extraction efficiency is improved. The concentration of platelet-rich plasma is accurately controlled, and the treatment effect is finally guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of centrifugation equipment technology, specifically, it relates to a PRP-assisted extraction device. Background Technology

[0002] The blood contains various cells, mainly composed of the following components, including plasma, red blood cells, white blood cells, and platelets. Red blood cells, white blood cells, plasma, and platelets can be combined into different components of PRP by varying their amounts. This can be used to obtain platelet-rich plasma (L-PRP) containing a small number of red blood cells and a large number of white blood cells, and platelet-rich plasma (P-PRP) containing no red blood cells or a small number of white blood cells.

[0003] Platelet-rich plasma (PRP) is produced by drawing a certain amount of venous blood, centrifuging it, and removing excess red blood cells and plasma to obtain platelet-rich plasma containing various growth factors such as cytokines, platelet-derived growth factor, transforming growth factor-β1, and vascular endothelial growth factor. When PRP is transplanted to the affected area, especially in the early stages of disease in human bone cartilage, ligaments, and muscles, it can stimulate surrounding stem cells and promote cell regeneration. Therefore, PRP is increasingly widely used in clinical, orthopedic, cosmetic, and pain management fields.

[0004] Currently, PRP extraction is performed using centrifugation. However, during the process, it has been found that due to the different extraction methods for various products, the transfer process from one syringe to another cannot remain stable, and it is also difficult to accurately control the amount transferred. As a result, the obtained platelet-rich plasma concentration varies, the extraction rate is unstable, and ultimately the treatment effect cannot meet expectations. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, the purpose of this utility model is to provide a PRP-assisted extraction device that can assist conventional medical syringes in accurately extracting PRP and ensure the quality of the extracted PRP.

[0006] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0007] A PRP-assisted extraction device includes a base, a connecting rod connected to the top of the base, and a support provided at the top of the connecting rod.

[0008] The base and the support are respectively provided with a lower mounting groove and an upper mounting groove that are coaxial in the vertical direction. Both the lower mounting groove and the upper mounting groove can accommodate syringes of conventional size.

[0009] The device also includes a helical push rod that can be moved vertically relative to the upper mounting slot;

[0010] A waste liquid collection box is provided on the base.

[0011] Furthermore, the lower mounting groove is formed on the side of the base, and a retaining groove for accommodating the end ring of the syringe barrel is also formed on the same side, while the upper mounting groove is formed inside the support.

[0012] Furthermore, the syringe located in the upper mounting groove is fixed by limiting the end ring of the syringe barrel.

[0013] Furthermore, the spiral push rod is provided with a slot for accommodating a standard-sized syringe.

[0014] Furthermore, a retaining sleeve is provided at the top of the upper mounting groove, and a threaded hole corresponding to the upper mounting groove is provided on the retaining sleeve, and the helical push rod is threadedly connected in the threaded hole.

[0015] Furthermore, the sleeve is provided with a slot for accommodating a standard-sized syringe.

[0016] Furthermore, a top plate is provided at the top of the helical push rod to assist in manual rotation.

[0017] Furthermore, the base, connecting rod, and support are integrally formed.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This invention proposes a PRP-assisted extraction device that can be directly used in a specific centrifuge. It employs a spiral-driven technique, enabling operators to continuously and stably input and transfer the solution between two syringes. This method reduces the impact force of the braking pressure, minimizes the damage to active cell components caused by pressure, effectively controls the extraction dosage, ensures the extraction rate, and precisely controls the platelet-rich plasma concentration, ultimately guaranteeing the therapeutic effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the device;

[0021] Figure 2 This is a schematic diagram of the structure of each component of the device;

[0022] In the diagram: 1-base; 11-lower mounting slot; 12-slot; 13-waste liquid collection box; 2-connecting rod; 3-support; 31-upper mounting slot; 32-sleeve; 33-threaded hole; 4-screw push rod; 41-top plate. Detailed Implementation

[0023] The present invention will be further described below with reference to specific embodiments.

[0024] like Figure 1 and Figure 2 As shown, the PRP-assisted extraction device of this utility model includes a base 1, a connecting rod 2 connected to the top of the base 1, and a support 3 provided on the top of the connecting rod 2.

[0025] The base 1 and the support 3 are respectively provided with a lower mounting groove 11 and an upper mounting groove 31 that are coaxial in the vertical direction. Both of these mounting grooves can accommodate syringes of conventional size, such as 10mL syringes and 50mL syringes.

[0026] In this embodiment, the lower mounting groove 11 is formed on the side of the base 1, and a retaining groove 12 for accommodating the end ring of the syringe barrel is also formed on this side. This allows the operator to easily insert the end ring of the syringe into the retaining groove 12, thus facilitating syringe installation. Meanwhile, the upper mounting groove 12 is formed inside the support 3, meaning that the support 3 can be considered to protrude outwards from the base 1. The reason for this design is that since the syringe in the upper mounting groove 31 needs to inject the internal liquid into the syringe in the lower mounting groove 11 from top to bottom, the side mounting and removal method in the lower mounting groove 11 facilitates the operator's operation. The central opening in the upper mounting groove 31 allows for positioning of the syringe from around it, and the limiting of the end ring of the syringe barrel provides fixed support. Finally, the operator can easily push the solution downwards from above the syringe to transfer it, thereby achieving alignment between the two syringes and the transfer of the injected solution.

[0027] In addition, this device includes an independent spiral push rod 4, which functionally controls the vertical movement of the syringe relative to the upper mounting groove 31. Structurally, a retaining sleeve 32 is provided on the top of the support 3. The retaining sleeve 32 has a threaded hole 33 corresponding to the upper mounting groove 31. The spiral push rod 4 is threaded into the threaded hole 33. This allows the operator to pass the syringe through the upper mounting groove 31 from above and let the end ring fall on the support 3 (or the limiting part around the upper mounting groove 31). After the retaining sleeve 32 is placed on the upper mounting groove 31, the spiral push rod 4 is inserted through the retaining sleeve 32 into the syringe plunger breakage point. The solution in the syringe can be easily pushed by twisting. At the same time, the twisting method can effectively ensure a slow and stable pushing process, preventing too much solution from being pushed in at once. As an auxiliary tooling fixture, it can greatly improve the work efficiency of the operator and can be directly used with a specific centrifuge to effectively ensure the extraction rate.

[0028] A top plate 41 is provided on the top of the screw pusher 4 to assist manual rotation. The top plate 41 and the screw pusher 4 can be integrally formed, which also facilitates the operator to perform the screwing operation. The base 1, connecting rod 2 and support 3 can also be integrally formed, which can effectively ensure the stability of the entire fixture and prevent damage during centrifugation.

[0029] Furthermore, slots for accommodating standard-sized syringes are provided on both the sleeve 32 and the spiral push rod 4. This allows staff to conveniently store syringes when they are not in use, typically by simply clipping them onto the slots.

[0030] A dedicated waste liquid collection box 13 is also provided on the base 1, the function of which will be explained in the following section on the operation process.

[0031] In this embodiment, the operation flow of this device is as follows:

[0032] First, connect a 50ml syringe to a lancet, draw sodium citrate (anticoagulant) and extract 40ml of venous blood from the arm. Remove the lancet and screw on the syringe cap.

[0033] The second step is to break off the tail of the syringe, cover it with a sterile bag, place the centrifuge sleeve, and load it into the centrifuge. After the first centrifugation, remove the syringe from the centrifuge, place it in this auxiliary device, remove the cap, connect the blood collection needle, insert the needle tip into the slot of the waste liquid collection box 13, cover the top of the syringe with the retaining sleeve 32, insert the spiral plunger 4, and turn the spiral plunger 4 to steadily push the red blood cells in the syringe downwards into the waste liquid collection box 13, while retaining 1 ml of red blood cells.

[0034] Third, remove the blood collection needle again, screw on the syringe cap, and remove the ferrule 32 and the screw rod 4.

[0035] Fourth, repeat the operation of the upper syringe, placing it in the centrifuge for a second centrifugation. Simultaneously, place the required size needleless syringe in the lower slot of this device. After centrifugation, remove the syringe from the centrifuge, remove the cap, connect the syringe needle, and insert it into the upper syringe hole. Due to the concentric circle principle, no manual control is required; the needle will precisely insert into the lower syringe. Then, turn the screw rod again to precisely control the injection of the required PRP into the lower syringe.

[0036] The 32nd support U-shaped slot and the 4th spiral rod, when inverted, can form a gunstock function, and at the same time realize the injection of two syringes.

[0037] This invention proposes a PRP-assisted extraction device that can be directly used in a specific centrifuge. It employs a spiral-driven technique, enabling operators to continuously and stably input and transfer the solution between two syringes. This method reduces the impact force of the braking pressure, minimizes the damage to active cell components caused by pressure, effectively controls the extraction dosage, ensures the extraction rate, and precisely controls the platelet-rich plasma concentration, ultimately guaranteeing the therapeutic effect.

Claims

1. A PRP assisted extraction device, characterized by, Includes a base, a connecting rod connected to the top of the base, and a support provided at the top of the connecting rod; The base and the support are respectively provided with a lower mounting groove and an upper mounting groove that are coaxial in the vertical direction. Both the lower mounting groove and the upper mounting groove can accommodate syringes of conventional size. The device also includes a helical push rod that can be moved vertically relative to the upper mounting slot; A waste liquid collection box is provided on the base.

2. The PRP assisted extraction device of claim 1, wherein, The lower mounting groove is formed on the side of the base, and a retaining groove for accommodating the end ring of the syringe barrel is also formed on the same side. The upper mounting groove is formed inside the support.

3. The PRP assisted extraction device of claim 1, wherein, The syringe located in the upper mounting groove is fixed by limiting the end ring of the syringe barrel.

4. The PRP assisted extraction device of claim 1, wherein, The spiral push rod is provided with a slot for accommodating a standard-sized syringe.

5. The PRP assisted extraction device of claim 1, wherein, A sleeve is provided at the top of the upper mounting slot, and a threaded hole corresponding to the upper mounting slot is provided on the sleeve. The spiral push rod is threadedly connected in the threaded hole.

6. The PRP assisted extraction device of claim 5, wherein, The sleeve has a slot for accommodating a standard-sized syringe.

7. The PRP assisted extraction device of claim 1, wherein, A top plate is provided at the top of the helical push rod to assist in manual rotation.

8. The PRP assisted extraction device of claim 1, wherein, The base, connecting rod, and support are integrally formed.

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