Cerebral aneurysm intracavity blood vessel rebuilding device

• Main Authors: JIANG WEIJIAN, QIU YUCHEN, WANG DUANCHENG
• Format: Patent
• Language: English
• Published: 08.07.2015
• 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 cerebral aneurysm intracavity blood vessel rebuilding device which comprises a bare metal stent and a tectorial membrane. The bare metal stent comprises a near supporting end, a far supporting end and a middle part, the near supporting end and the far supporting end are located at the two ends of the bare metal stent and used for supporting a aneurysm-carried cerebral artery blood vessel wall, the length of the middle part is slightly larger than the width of a cerebral aneurysm neck, and the middle part is arranged between the two supporting ends. The radial size of the middle part is smaller than that of the two supporting ends, and a blood supply cavity is formed between the middle part and the aneurysm-carried cerebral artery blood vessel wall. The tectorial membrane covers the near supporting end and part of the middle part so as to isolate the cerebral aneurysm from receiving the forward blood flowing, large in vector, of an aneurysm-carried cerebral artery and allow the far supporting end without the tectorial membrane to provide backward blood flow, small in vector, from the far end of the aneurysm-carried cerebral artery. The cerebral aneurysm intracavity blood vessel rebuilding device solves the problems that according to very large and huge cerebral aneurysm stent-assisted coil embolization, the aneurysmal obliteration rate is low and the recurrence rate is high, side branch and perforating branch blood supply is ensured, the cerebral aneurysm rupture is effectively prevented, and the space occupying effect of the cerebral aneurysm is reduced.