Medical filter needle

The filter needle includes a steel needle, an upper needle seat, a lower needle seat, a check valve and a filter membrane. The steel needle is installed at the front end of the upper needle seat. The back end of the upper needle seat is sequentially provided with a check valve cavity, a gasket cavity and a lower needle In the seat cavity, the front end of the lower needle seat is provided with an end wall, the middle of the end wall is provided with a valve core, and the valve core is provided with a blind hole. , One end of the outlet hole is connected with the blind hole, and the other end of the outlet hole is located on the side wall of the valve core. On both sides of the valve core on the end wall, there are liquid inlets. The check valve includes a check valve cylinder. The lower end of the valve cylinder is provided with a sealing gasket, the lower needle seat and the lower needle seat cavity are interference fit, and the check valve and the annular filter membrane are sleeved outside the valve core. The liquid inlet channel and the liquid outlet channel of the check valve of the utility model do not interfere with each other. The valve core is wrapped in the way that the check valve cylinder body contacts the valve core surface, the contact area is enlarged, the reliability is enhanced, and the processing and manufacturing process of the check valve is relatively relative. Simple.

If you have any questions, please contact us. Our company can produce various customized needles, medical needles, puncture needles, hypodermic needles, biopsy needles, vaccine needles, injection needles, syringe needles, veterinary needles, pencil point needle, ovum pick up needles, spinal needles, etc. If you need customized needle products, please contact us. We look forward to your inquiry! The quality of the products manufactured in our factory will surely satisfy you!

Please contact us if you need: zhang@sz-manners.com