Vena cava filter

• Main Authors: SUN GUANGSHUAI, NIE BAOSHUANG, ZHOU TING
• Format: Patent
• Language: Chinese; English
• Published: 22.09.2023
• 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, and relates to the technical field of medical instruments. Comprising a recovery end which is provided with a recovery hook; one end of the recovery end is provided with radially arranged filter bodies, the tail ends of the filter bodies are provided with barbs extending outwards, and the barbs can be inserted into the inner wall of a blood vessel; supporting bodies are arranged on the outer side of the filtering body and at the barbs, and the supporting bodies can be attached to the inner wall of the blood vessel. The recovery end is of a closed-loop structure, and the end, provided with the barbs, of the recovery end is of an open-loop structure. According to the vena cava filter, the coaxiality of the filter and a blood vessel is good, operation is convenient when the filter is taken out, and the taking-out time of the filter is prolonged. 本发明公开一种腔静脉滤器，涉及医疗器械技术领域；包括回收端，所述回收端设有回收钩；所述回收端的一端安装有放射状布置的过滤体，所述过滤体末端设置有向外延展的倒刺，所述倒刺能够插入血管内壁处；所述过滤体外侧和倒刺位置处设有支撑体，所述支撑体能够与血管内壁