A PRP preparation cannula integrated with blood collection and centrifugation

Abstract

The utility model discloses a blood collection and centrifugation integrated PRP preparation sleeve, comprising a blood collection and centrifugation integrated tube and a PRP storage tube which are arranged relatively, the blood collection and centrifugation integrated tube and the PRP storage tube being connected via a three-way valve, a piston pull rod adapted to the inner cavity of the blood collection and centrifugation integrated tube being arranged inside the blood collection and centrifugation integrated tube, the piston pull rod extending from one end of the blood collection and centrifugation integrated tube away from the PRP storage tube to the outside of the blood collection and centrifugation integrated tube, an extraction port being arranged at one end of the PRP storage tube away from the blood collection and centrifugation integrated tube, and a sealing cover being arranged at the extraction port; the utility model is in a closed environment for the entire process from blood collection to the preparation of concentrated platelets required for clinical use, thereby avoiding contamination; the utility model can prepare the required product by a single centrifugation method, and can accurately measure the platelet concentration when a higher concentration and the required concentration are required in clinical use, and is not only used in clinical use, but also suitable for scientific research use.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a PRP preparation sleeve tube integrated with blood collection and centrifugation. Background Art

[0002] Platelet-rich plasma is usually referred to as platelet-rich plasma (PRP) in the art. It is plasma containing a high volume fraction of platelets obtained by centrifuging whole blood from humans or animals. Since David R. Knighton et al. discovered in the 1980s that platelet cells can promote angiogenesis and collagen synthesis, people have been committed to applying platelet-rich plasma (PRP) to clinical practice, eager to solve the problem of repairing organ tissue damage with low repair capacity; the current PRP needs to be centrifuged twice to ensure effective concentration, which takes a lot of time to prepare, and the risk of infection during secondary centrifugation is relatively high. Utility Model Content

[0003] In order to solve the above technical problems, the technical solution provided by the utility model is: a blood collection and centrifugation integrated PRP preparation sleeve, comprising a blood collection and centrifugation integrated tube and a PRP storage tube arranged relatively, the blood collection and centrifugation integrated tube and the PRP storage tube are connected by a three-way valve, the blood collection and centrifugation integrated tube is provided with a piston pull rod adapted to its inner cavity, the piston pull rod extends out of the blood collection and centrifugation integrated tube from one end of the blood collection and centrifugation integrated tube away from the PRP storage tube, the PRP storage tube is provided with an extraction port at one end away from the blood collection and centrifugation integrated tube, and a sealing cover is provided at the extraction port.

[0004] Compared with the prior art, the advantages of the present invention are as follows: the whole process from blood collection to preparation of concentrated platelets required for clinical use is in a closed environment to avoid contamination; the present invention can prepare the required product by a single centrifugation method, and can accurately measure the platelet concentration when a higher concentration is required in clinical practice. The present invention is not only used in clinical practice, but also suitable for scientific research. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] Figure 1 It is a schematic diagram of the upper structure of a PRP preparation sleeve integrated with blood collection and centrifugation in the utility model.

[0006] Figure 2 It is a schematic diagram of the lower structure of a PRP preparation sleeve integrated with blood collection and centrifugation in the utility model.

[0007] Figure 3 It is a schematic diagram of the internal structure of a PRP preparation sleeve integrated with blood collection and centrifugation in the utility model. DETAILED DESCRIPTION

[0008] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0009] In the description of the embodiments of the present utility model, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0010] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0011] In the description of the embodiments of the present invention, "multiple" means at least 2.

[0012] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0013] Example:

[0014] A blood sampling and centrifugal integrated PRP preparation sleeve comprises a blood sampling and centrifugal integrated tube 1 and a PRP storage tube 2 which are arranged relatively to each other, wherein the blood sampling and centrifugal integrated tube 1 and the PRP storage tube 2 are connected via a three-way valve 3, wherein a piston pull rod 4 adapted to the inner cavity of the blood sampling and centrifugal integrated tube 1 is arranged inside the blood sampling and centrifugal integrated tube 1, wherein the piston pull rod 4 extends out of the blood sampling and centrifugal integrated tube 1 from one end of the blood sampling and centrifugal integrated tube 1 away from the PRP storage tube 2, wherein an extraction port is arranged at one end of the PRP storage tube 2 away from the blood sampling and centrifugal integrated tube 1, and a sealing cover 5 is arranged at the extraction port; the blood sampling and centrifugal integrated tube 1 and the PRP storage tube 2 have the same shape, wherein the end of the blood sampling and centrifugal integrated tube 1 away from the PRP storage tube 2 is a straight tube portion 101, and the end close to the end of the PRP storage tube 2 is a tapered tube portion 102.

[0015] In the specific implementation, blood is first collected, the piston pull rod is slid outward, the interface leading to the outside of the three-way valve is opened, and the blood collection needle is connected. After the blood collection is completed, the interface facing the outside of the three-way valve is closed, and the connection between the blood collection and centrifugation integrated tube and the PRP storage tube in the three-way valve is opened, and the centrifuge is placed for centrifugation. After the first centrifugation of 400g-500g, the supernatant plasma is obtained. After the centrifugation is completed, the piston pull rod is slid inward to allow the upper plasma to enter the cavity of the PRP storage tube, and the three-way valve between the blood collection and centrifugation integrated tube and the PRP storage tube is closed. The second centrifugation is performed at 1200g-1500g for 10min. After the centrifugation is completed, the platelets are deposited at the bottom of the cavity of the PRP storage tube. The sealing cover of the PRP storage tank is opened, and the long blood collection needle enters the cavity of the PRP storage tank to draw the upper platelet-poor plasma. The product remaining at the bottom of the PRP storage tank is highly concentrated platelets, and the platelet-rich plasma (PRP) can be prepared.

[0016] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A blood collection and centrifugation integrated PRP preparation cannula, characterized in that: It comprises a blood collection and centrifuge integrated tube and a PRP storage tube which are arranged relatively, the blood collection and centrifuge integrated tube and the PRP storage tube being connected via a three-way valve, a piston pull rod adapted to its inner cavity is arranged in the blood collection and centrifuge integrated tube, the piston pull rod extends out of the blood collection and centrifuge integrated tube from one end of the blood collection and centrifuge integrated tube away from the PRP storage tube, an extraction port is arranged at one end of the PRP storage tube away from the blood collection and centrifuge integrated tube, and a sealing cover is arranged at the extraction port.

2. The blood collection and centrifugation integrated PRP preparation cannula according to claim 1, characterized in that: The blood sampling and centrifugation integrated tube and the PRP storage tube have the same shape. The end of the blood sampling and centrifugation integrated tube away from the PRP storage tube is a straight tube portion, and the end close to the PRP storage tube is a tapered tube portion.

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