Vena cava filter

• Main Authors: CHENG ZHENGHUI, YIN ZHOU, GU JIANPING, QIU YUCHEN, LOU WENSHENG, WANG DUANCHENG
• Format: Patent
• Language: Chinese; English
• Published: 21.09.2016
• Subjects: BANDAGES, DRESSINGS OR ABSORBENT PADS; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PROSTHESES; TREATMENT OR PROTECTION OF EYES OR EARS

The invention discloses a vena cava filter. The vena cava filter comprises a recycling hanging hook and support pillars, wherein the support pillars are in two-layer structures and comprise upper support pillar parts and lower support pillar parts which are slantwise arranged along the circumferential direction of the recycling hanging hook; one ends of the upper support pillar parts are connected with the recycling hanging hook, the other ends of the upper support pillar parts are connected with the lower support pillar parts, namely, the upper support pillar parts and the lower support pillar parts are arranged at intervals along the axial direction of the recycling hanging hook, and the upper support pillar parts and lower support pillar parts are provided with connecting parts in point contact with the blood vessels. According to the vena cava filter, the support pillars are arranged in two layers, and the upper support pillar parts and the lower support pillar parts are in point contact with the blood ve