Hemodialysis puncture needle with needle head protection structure

• Main Authors: LIU DAZHAN, LIANG CHENGUANG, LYU LU
• Format: Patent
• Language: Chinese; English
• Published: 15.08.2023
• Subjects: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

The utility model discloses a hemodialysis puncture needle with a needle head protection structure, and relates to the technical field of puncture needles. A movable sleeve is arranged at one end of the fixed sleeve, a sealing assembly is arranged at the outer end of the movable sleeve and composed of a plurality of rubber sheets, a fixed tube is fixedly connected to the inner end of the puncture needle, a communicating tube is arranged in the soft catheter, and intubation tubes are fixedly connected to the two ends of the communicating tube. The soft catheter and the fixed tube are connected through the two insertion tubes and the communicating tube, external threads are arranged on the outer surface of the fixed sleeve shell, internal threads are arranged on the inner wall of the movable sleeve tube, a plurality of outer notches are formed in the circumferential side face of the fixed sleeve shell, a fixed ring is fixedly connected to the circumferential side face of the movable sleeve tube, and an anti-ski