| 摘要 |
<p>Methods and devices for performing percutaneous and surgical interventions. The devices comprising a tubular portion (2) and retractable mechanism (10) at the distal end of the tubular portion. The retractable mechanism prevents the device from pulling out of an anatomical structure during complex interventions, for example, when switching from an antegrade to a retrograde approach within a blood vessel, enables the use of a single sheath when declotting AV hemodialysis fistulas and can provide occlusion of blood flow during interventions and means of removal of debris or clot from the blood vessel.</p> |
