Methods and devices for sheathing-free transradial catheter insertion

• Main Author: SANGHVI KRISHNA A
• Format: Patent
• Language: Chinese; English
• Published: 27.06.2023
• 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 sheath-free access to a vessel of a patient has a distal portion (14) extending from a distal end (12) to a guidewire outlet (16) and having a maximum outer diameter, and a proximal portion (18) extending from the guidewire outlet to a proximal end (20) and having a reduced profile, and a lumen (22) extending between the distal end and the guidewire outlet. A first guidewire (42) may be positioned in the blood vessel and the dilator advanced over the guidewire. A guide catheter may then be advanced over the dilator. 一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)。第一引导线(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。