Biological safety cabinet operating hand rest

Abstract

The invention discloses a biological safety cabinet operating hand rest comprising an inverted U-shaped clamp, a support frame, a hand rest plate and a universal joint, wherein the top surface of theinverted U-shaped clamp is fixedly provided with the support frame; the hand rest plate is arranged on the support frame, and the support frame and the hand rest plate are connected by the universal joint. The biological safety cabinet operating hand rest can facilitate an operator of a biological safety cabinet to put arms on the hand rest, and avoids long-time hanging of arms to cause fatigue ofthe arms and shoulders; the hand rest is supported by the inverted U-shaped clamp, and the middle of the inverted U-shaped clamp is hollow so as to greatly reduce blocking of a front window operatingwind curtain layer of the biological safety cabinet caused by direct placing of the arms on an inflowing air fence net; and the inverted U-shaped clamp adopts a movable design, so that the hand restcan be applied to any type of biological safety cabinet. The biological safety cabinet operating hand rest has the advantages of simple structure, reasonable design, low production cost, low use costand good market prospect.

Description

technical field [0001] The invention relates to the technical field of microorganisms and medical laboratory equipment, in particular to a hand rest of a biological safety cabinet. Background technique [0002] Biological safety cabinets are necessary equipment for the operation of pathogenic microorganisms. The standard use of biological safety cabinets should be that the operator's arm hangs above the inflow air fence, because if the arm is placed directly on the inflow air fence, the lower airflow and inflow airflow of the biological safety cabinet will not be able to directly enter the inflow air due to the blockage of the arm. Fence net, after the sinking airflow in the safety cabinet blows to the arm, it changes direction and crosses the inflow air fence net to run outside the biological safety cabinet, causing the pathogenic microorganisms in the safety cabinet to escape; the inhalation airflow outside the safety cabinet blows to the After the arm is put on, turn aro...

AI Technical Summary

Problems solved by technology

The standard use of biological safety cabinets should be that the operator's arm hangs above the inflow air fence, because if the arm is placed directly on the inflow air fence, the lower airflow and inflow airflow of the biological safety cabinet will not be able to directly enter the inflow air due to the blockage of the arm. Fence net, after the sinking airflow in the safety cabinet blows to the arm, it changes direction and crosses the inflow air fence net to run outside the biological safety cabinet, causing the pathogenic microorganisms in the safety cabinet to escape; the inhalation airflow outside the safety cabinet blows to the After putting on the arm, turn around and cross the inflow air fence to run to the operating surface in the biological safety cabinet, causing the operation samples in the safety cabinet to be prone to cross-contamination

However, if the operator hangs his arm on the inflow air fence according to the specification requirements, the arm, shoulder and back will be sore and numb after a long time, which will affect the experimental operation and even lead to biosafety accidents; May increase the operator's risk of frozen shoulder

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