Precise-positioning staged balloon dilatation vertebral artery stent system and method
The invention relates to an accurate-positioning staged balloon dilatation vertebral artery stent system and method, and belongs to the technical field of balloon stent positioning of vertebral artery operations. The special-shaped balloon is arranged, on one hand, physical limiting and positioning...
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| creator | WU SHUAI XU XING ZHAO XUDONG YANG JIEQIONG MU ZHENQIAN WANG MINLEI MIAO ZENGLI |
| description | The invention relates to an accurate-positioning staged balloon dilatation vertebral artery stent system and method, and belongs to the technical field of balloon stent positioning of vertebral artery operations. The special-shaped balloon is arranged, on one hand, physical limiting and positioning are achieved through the size and structure difference design of the near-end balloon and the far-end balloon, and it can be ensured that the special-shaped balloon can accurately reach the designated position of the joint of the narrow part and the subclavian artery in the stretching-in process, and automatic calibration is conducted; the amplitude influence on the special-shaped balloon and the stent when the catheter is withdrawn can be effectively avoided; on the other hand, the successive deformation process of the near-end balloon and the far-end balloon is achieved by controlling the speed and the size of the propelling air pressure so as to ensure that the stent is fixed after sufficient positioning, in add |
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| subjects | BANDAGES, DRESSINGS OR ABSORBENT PADS 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 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 |
| title | Precise-positioning staged balloon dilatation vertebral artery stent system and method |
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