Sealed-type platelet rich plasma separating assembly and method

Abstract

The invention provides a sealed-type platelet rich plasma separating assembly and method. The separating method involves a separating pipe, a platelet collecting device and several collecting devices,wherein the separating pipe is connected with the platelet collecting device through a main collecting pipe; the main connecting pipe is further provided with several branch connecting pipes, and theconnecting devices are communicated with the main connecting pipe through the branch connecting pipes respectively. The separating method comprises the steps of blood drawing, first separating, erythrocyte separating, second separating, platelet poor plasma separating, and platelet rich plasma separating. By means of the sealed-type platelet rich plasma separating assembly and method, the risk that blood is exposed and contaminated in the separation and preparation process is avoided; not only is the platelet recycling rate high, but also the sealed-type platelet rich plasma separating assembly is safe and convenient to use.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a closed platelet-rich plasma separation set and method. Background technique [0002] Platelet rich plasma (PRP) contains a high concentration of growth factors, which has a clear role in promoting wound healing, osteogenesis and soft tissue repair, and the ability to accelerate bone healing, improve the quality of healing, and because PRP is completely derived from Autologous, without disease infection and immune rejection, easy to manufacture, and less tissue damage, so it should have a good clinical application prospect. [0003] Platelet-rich plasma is based on the different sedimentation coefficients of the components in whole blood, and the platelets are separated and extracted by centrifugation. During the centrifugation process of whole blood, red blood cells settle at the bottom layer after centrifugation due to the fastest sedimentation speed, plat...

AI Technical Summary

Problems solved by technology

Existing small sample platelet separation method: inject blood into a sterile test tube or a plastic bag after the syringe draws blood, centrifuge, and then separate with a pipette in a laboratory biosafety cabinet. This separation method has the following defects: 1. If The plastic blood bag used is a soft material, which cannot stand upright during centrifugation, and the stratification of blood components is not clear, resulting in impure blood components collected and a low platelet recovery rate; Incorrectly spiked samples and contaminated platelets

3. Red blood cells and excess plasma cannot be reinfused to the patient after platelet separation from whole blood, resulting in waste of blood resources

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