Finger tip blood sampling device

Abstract

The invention relates to the technical field of medical apparatuses and instruments, and discloses a finger tip blood sampling device which comprises a hollow shell provided with a trigger window and a clamping part, a needle disc provided with a blood taking needle and a blood collecting channel, a limiting rebounding check ring arranged between the needle disc and the shell, a needle disc clamp arranged in the shell and connected with the needle disc in a matched and clamped mode, and an elastic piece arranged between the needle disc and the needle disc clamp; when the needle disc is clamped with the needle disc clamp in a matched mode, the elastic piece is in a compressed state, and the blood taking needle is located in an inner cavity of the shell; and when a trigger button drives the needle disc to be separated from the needle disc clamp, the elastic piece is in a stretching state, and the blood taking needle extends into the clamping part. According to the finger tip blood sampling device, needle withdrawing and blood sampling are integrated, a blood sample is prevented from being polluted, the detection accuracy is improved, and the requirement for the adaptability of a patient is low.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a fingertip blood sampling device. Background technique [0002] At present, the fingertip blood collection needle widely used in medical institutions is a disposable simple blood collection needle. During operation, the left index finger and thumb pinch the blood collection site inside the patient's fingertip to make the blood collection site congested and disinfected. Pull out the safety plug, place it on the sterilized blood collection site, and press the inner sleeve that is in direct contact with the patient's skin to make the needle core launch and penetrate. After the needle is pulled out, a small amount of blood will emerge from the needle hole, and then squeeze the blood with the left hand site, collect enough blood into the blood collection tube, and complete the blood collection process. [0003] First of all, the traditional fingertip blood collection nee...

AI Technical Summary

Problems solved by technology

[0003] First of all, the traditional fingertip blood collection needle requires high cooperation from the patient, and the steps are scattered. The operator needs to cooperate with the left and right hands to carry out the entire operation steps; The frequency of site contact is high, and there is a risk of contaminating blood samples; in addition, traditional blood collection methods cannot sample independently, and cannot provide more convenient sampling methods for people in need

Some types of blood collection needles also have the problem of exposed needle tip after use, which may cause accidental injury to medical staff

[0004] Therefore, it is necessary to design a device that integrates needle extraction and blood collection to solve the problems of scattered steps of traditional fingertip blood collection needles, high risk of blood sample contamination, and inability to self-sampling

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