Safety blood sampling needle

A blood collection needle and safety technology, applied in the field of safety blood collection needles, can solve the problems of accidental needle injury to blood collection personnel, and achieve the effect of avoiding accidental retraction and protecting personal safety

Inactive Publication Date: 2019-04-16
湖州市中心血站
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Now when donating blood, it is necessary to use a blood collection needle to collect blood. However, the needles of the existing blood collection needles are all exposed. When using it, especially now it is a volun

Method used

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  • Safety blood sampling needle
  • Safety blood sampling needle
  • Safety blood sampling needle

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0017] Example 1: Such as figure 1 , 2 As shown, a safety blood sampling needle includes a syringe 1, a sliding piston 2 provided in the syringe 1, a blood sampling needle 3 provided in the sliding piston 2, and a blood collection needle 3 provided in the syringe 1. A release mechanism 4 on the sliding piston 2, a pulling mechanism 5 on the syringe 1 for operating the release mechanism 4, and a pulling mechanism 5 on the syringe 1 for blocking and sealing the sliding piston The blocking and sealing mechanism 6 of 2, the blood sampling needle and the sliding piston are fixed and sealed, and the two are connected as a whole. During normal use, the blood sampling needle and the syringe are used for blood sampling. At this time, the sliding piston is blocked by the blocking and sealing mechanism 6 The position of the sliding piston is restricted by the pulling mechanism 5. At this time, the force of the release mechanism acts on the sliding piston. Because of the existence of the pu...

Example Embodiment

[0023] Example 2, see attached image 3 In this embodiment, the blocking and sealing mechanism 6 further includes a bottom groove 604 provided on the bottom surface of the ring groove 602, and an extrusion spring for squeezing the sealing ring 603 is provided in the bottom groove 604. 605, the rest is the same as in Example 1. Such a structure not only facilitates the sealing between the piston piston and the needle barrel, but also ensures that the entire blood sampling needle will not be reused.

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Abstract

The invention discloses a safety blood sampling needle which comprises a needle cylinder. The blood sampling needle further comprises a sliding piston arranged in the needle cylinder, a blood samplingneedle head arranged on the sliding piston, a release mechanism arranged in the needle cylinder to act on the sliding piston, a pulling mechanism arranged on the needle cylinder for operating the release mechanism and a blocking sealing mechanism arranged in the needle cylinder for blocking and sealing the sliding piston. After a medical worker samples blood, the needle head is rapidly retractedinto the needle cylinder, personal safety of the medical worker is protected, and the phenomenon that the needle head is retracted by accident due to misoperation can be effectively avoided.

Description

Technical field [0001] The invention relates to the technical field of medical blood sampling, in particular to a safe blood sampling needle. Background technique [0002] Nowadays, when donating blood, it is necessary to use a lancet to collect blood. However, the needles of the existing lancets are exposed. When in use, especially nowadays, blood donation is voluntary. It is a race against time and it is easy to happen. The accidental injury of the blood collection staff by the needle is dangerous, so a safe blood collection needle that can protect the personal safety of medical staff is needed. Summary of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a safety lancet, which can quickly retract the needle into the syringe after the medical staff collect blood, so as to protect the personal safety of the medical staff, and , It can also effectively avoid accidental retraction of the needle caused by misope...

Claims

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Application Information

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IPC IPC(8): A61B5/154A61M1/00
CPCA61B5/15003A61B5/150534A61B5/154A61M1/67
Inventor 陈义柱孙泉吴安凤施帼芳沈小英唐艳柳丹利
Owner 湖州市中心血站
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