Disposable rotation-type needle-punching-preventing safe vein blood sampling needle
A rotary, anti-acupuncture technology, applied in the field of medical devices, can solve the problems of unsafe blood collection needles, achieve the effects of eliminating needle tip injuries, convenient operation, and low production costs
Inactive Publication Date: 2015-11-25
SHANDONG UNIV QILU HOSPITAL
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to overcome the unsafeness of traditional blood collection needles and provide a reasonable structure, easy to use, safe and reliable. Disposable swivel needlestick-proof safety venous blood collection needle with risk and blood leakage hazard
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Embodiment Construction
[0017] The use method of the present invention, first: remove the protective cap 1 of the puncture needle, carry out conventional puncture with the main body of the shell, insert the puncture needle 2 into the blood vessel, and the blood passes through the blood collection channel of the puncture needle 2, the spiral mandrel 6, and the blood collection hose 8 The blood collection tube needle 9 delivered to the rear enters the vacuum blood collection tube, and the puncture needle 2 is pulled out from the blood vessel to complete the blood collection operation process.
[0018] Second: After the puncture and blood collection operations of the present invention are completed, the spiral helical gear 7 is rotated clockwise, and the spiral mandrel moves in conjunction with the spiral spiral, and the puncture needle 2 is retracted and hidden in the protective sleeve 5. The silicone sealing plug 3 at the front end is airtight to the blood collection channel.
[0019] The invention is...
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The invention provides a disposable rotation-type needle-punching-preventing safe vein blood sampling needle which is composed of a puncture needle, a puncture needle protection sleeve, a puncture needle rotation protection sleeve, and a rotation spiral core bar which is arranged in the rotation protection sleeve, wherein the front and of the rotation spiral core bar is connected with the puncture needle, the middle of the rotation spiral core bar is a blood sampling channel, the rear end of the rotation spiral core bar is connected with a blood sampling hose and a blood sampling hose needle, the front end of the rotation protection sleeve is provided with a silica gel sealing plug, after the puncture needle retracts to rotate to the inside of the protection sleeve, a pinhole channel at the front end of the protection sleeve is sealed, a rotation spiral core bar positioning plate is arranged on the front part of the rotation protection sleeve for positioning the rotation spiral core bar from the middle, a rotation spiral gear is arranged at the tail of the rotation protection sleeve, and rotates clockwise to drive the rotation spiral core bar to move in a linkage way, and then the puncture needle is driven to rotate and be concealed in the protection sleeve, so that the situations of puncture by the needle tip and out leakage of blood are effectively avoided. The disposable rotation-type needle-punching-preventing safe vein blood sampling needle is simple in structure, convenient to operate, safe and reliable, is convenient for clinic use, easy to manufacture, and low in production cost.
Description
technical field [0001] The invention relates to a medical device, in particular to a disposable revolving anti-acupuncture safety venous blood collection needle. Background technique [0002] At present, the traditional blood collection needles used in most hospitals will be exposed to the air when the puncture needle is pulled out after the blood collection is completed, which increases the risk of needle stick injury and the risk of contamination from blood leakage. Needle stick injury is a common occurrence in the clinical work of medical staff. Accidents, a variety of pathogens can be transmitted through needlestick injuries, and can produce more serious infection consequences. According to reports, only 0.004mL of blood with hepatitis B virus (HBV) is enough to cause needlestick injuries. The probability of HIV infection after a needlestick injury contaminated by human immunodeficiency virus (HIV) is 0.3%. Therefore, how to avoid needlestick injury in medical care work ...
Claims
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IPC IPC(8): A61B5/153
Inventor 李秋环刘晓钰
Owner SHANDONG UNIV QILU HOSPITAL