急性虚血性脳卒中を治療するための方法及びシステム

• Format: Patent
• Language: Japanese
• Published: 23.05.2025
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

A system of devices for treating an occlusion in a cerebral artery of a patient through an access sheath and through a distal catheter (2030) sized and shaped to be inserted axially through an internal lumen of the access sheath such that the distal catheter can be inserted into a cerebral artery via the access sheath,the system comprising an elongated inner member (2652) sized and shaped to be inserted axially through an internal lumen of the distal catheter, the inner member having an internal lumen configured to receive a guidewire (2515) suitable for insertion into the cerebral artery via the internal lumen of the inner member,wherein the inner member has a tapered region with an outer diameter configured to form a smooth transition in use of the system between the inner diameter of the internal lumen of the distal catheter and the outer diameter of the guidewire received in the internal lumen of the inner member, the outer diameter of the tapered region tapering in size toward the outer diameter of the guidewire.