Dried blood spot puncher and punching method thereof

Abstract

The invention relates to the technical field of punchers, in particular to a dried blood spot puncher and a punching method thereof. The dried blood spot puncher comprises a workbench, wherein a driving assembly and a punching assembly are arranged on the workbench; a test tube tray is in driving connection to the driving assembly; the punching assembly comprises a punching punch, a punching upperdie and a punching lower knife which are sequentially distributed from top to bottom; a gap is reserved between the punching upper die and the punching lower knife and is used for placing a blood spot acquisition card; a first punched hole is formed in the punching upper die; a second punched hole is formed in the punching lower knife; a punching needle is fixed on the punching punch and is in sliding fit with the inner wall of the first punched hole; the bottom end of the punching needle is in shearing fit with the second punched hole; and an air hole is formed in the central axis of the punching needle. After the dried blood spot puncher is used for punching, blood sheets can be blown into test tubes, and the blood sheets falling into the test tubes cannot fly out of the test tubes dueto the influence of air flow; and the dried blood spot puncher has the advantage of being quiet during working, is efficient and energy-saving, and is suitable for being used in medical places.

Description

technical field [0001] The invention relates to the technical field of punching machines, in particular to a dried blood spot punching instrument and a punching method thereof. Background technique [0002] At present, the operation of blood sheet collection is generally carried out manually, that is, placing a single test tube or collection part under the punching device, and punching the filter paper infiltrated with blood spots to form a blood sheet. The blood sheet outlet falls into the test tube or the collection part, and then the collection part is replaced manually. However, this process requires laboratory personnel to manually operate, which greatly affects the efficiency of work. [0003] In addition, in the above structure, when the blood sheet falls into the test tube and the collection part, due to the influence of static electricity inside the punching device, the blood sheet often deviates during the falling process, that is, the blood sheet may fall into th...

AI Technical Summary

Problems solved by technology

The disadvantage of this blood spot punching machine is: due to the subsequent detection of blood spots, the diameter of the punched blood spot should not exceed 2mm, such a small blood spot can easily fly out of the test tube under the blowing effect of the auxiliary drop device , and even fly into other test tubes

Images