Medical separation and extraction device and method for separating and extracting platelet-rich plasma by using medical separation and extraction device

Abstract

The invention relates to a medical separation and extraction device, which comprises a first container, a second container and a third container, wherein the first container comprises a first outer wall, a first cavity and at least a communication opening penetrating through the first outer wall, the second container comprises a second outer wall, a second adjusting member and a second cavity, thethird container comprises a third outer wall, a third adjusting member and a third cavity, the volumes of the second cavity and the third cavity are correspondingly changed along with the sliding ofthe second adjusting member and the third adjusting member respectively, the second cavity and the third cavity can be communicated with the first cavity respectively through the communication opening, the third container is detachably connected to the first container, and the second container is provided with a port capable of directly extracting blood through an injection needle. According to the medical separation and extraction device of the invention, the whole sucking, separation and extraction process can be realized by only adopting the device under the conditions of liquid collectionwith no use of additional injection needle and sucking storage of the extract, so that the operation is simple, and the pollution risk is reduced.

Description

Technical field [0001] The present invention relates to the field of medical devices, in particular to a device for separating and extracting a mixture of stem cells and growth factors in platelet-rich plasma and bone marrow puncture fluid, and a method for separating and extracting platelet-rich plasma with the aid of the device. Background technique [0002] Blood mainly contains blood cells and plasma, among which, due to the presence of platelets, plasma can be divided into platelet-rich plasma (PRP) layer and platelet-poor plasma layer (also called impurity layer). At present, a large number of reports and literature have proposed that PRP is particularly effective for human skin diseases and wound healing. Therefore, how to quickly and safely separate and extract PRP from the blood has become a research topic for many scholars. Similarly, how to effectively separate and extract the mixture of stem cells and growth factors in the bone marrow puncture fluid has also become a ...

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