Due to the differences in lipids and blood vessels of human groups,and the differences in the proficiency of in-travenous injection techniques of practical nurses,the success rate of completing venipuncture to open the venous access is low for some special groups of people or on special occasions.In order to improve the success rate of venous puncture,this paper takes the orange pie as the processing center,combines the three modules of image acquisition,processing and pro-jection to design an intravenous injection assistant device,and optimizes the design of a simple and portable structure.Af-ter experimental verification,the device can accurately and clearly display the location of venous vessels during intravenous injection,assist in completing the injection,improve the success rate of venipuncture,help nurses to improve their busi-ness ability,reduce the pain of patients,and improve the doctor-patient relationship.
维普
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