Method and device for sheathless transradial catheterization

• Main Author: SANGHVI KINTUR A
• Format: Patent
• Language: Chinese; English
• Published: 31.05.2017
• Subjects: 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; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE

A dilator (10) for sheathless access to a vessel of a patient, having a distal portion (14) with a maximal outer diameter that extends from a distal end (12) to a guidewire exit port (16) and a proximal portion (18) with a reduced profile that extends from the guidewire exit port to the proximal end (20) and a lumen (22) that extends between the distal end and the guidewire exit port. A first guidewire (42) may be positioned within the vessel and the dilator advanced over the guidewire. A guide catheter may then be advanced over the dilator. 种用于无护套接入患者血管的扩张器（10），具有：从远端端部（12）延伸到引导线出口（16）且具有最大外直径的远端部分（14），和带有从引导线出口延伸到近端端部（20）且具有减小外形的近端部分（18），以及在远端端部和引导线出口之间延伸的内腔（22）。第引导线（42）可以定位在血管中且所述扩张器在所述引导线上前进。引导导管随后可以在所述扩张器上前进。