Abstract: An ablation device is provided, including a main body structure (110), electrodes (130), and a plurality of supporting arms (120), where the supporting arm (120) is inclined outward relative to the main body structure (110) and includes a contact portion (121); the contact portion (121) has an arcuate structure, and a convex surface of the arcuate structure faces a side of the supporting arm (120) away from a center of the main body structure (110); the electrode (130) is mounted on the contact portion (121) and covers at least a part of an outer side wall of the contact portion (121). Thus, when the supporting arm (120) is squeezed by an air tube (300), the contact portion (121) forms an arcuate structure, and the convex surface of the arcuate structure faces the side of the supporting arm (120) away from the main body structure (110), causing the contact portions (121) on different supporting arms (120) to at least partially attach to a gap (340) between cartilages (330) of the air tube (300).

Abstract: An ablation apparatus (20) is provided, including: a catheter (21) and an ablation portion (22) connected to a distal end of the catheter (21), where the ablation portion (22) has an expansible property and includes a plurality of ablation members (22a); each ablation member (22a) includes a supporting unit (24), a wall attachment unit (23), and an energy release unit provided on the wall attachment unit (23); a plurality of supporting units (24) are deployed radially outwardly and extend toward the distal end of the ablation portion (22) to be connected to a plurality of wall attachment units (23); when the ablation portion (22) is in a naturally expanded state, at least one wall attachment unit (23) in the ablation portion (22) is independently deformed relative to the adjacent wall attachment units (23). The ablation apparatus (20) can adapt to the morphology of a target tissue and attach well to the target tissue.

Abstract: A nerve ablation apparatus is provided, including supporting bodies (110, 210, 310, 410) and mounting members (120, 220, 420); the mounting members (120, 220, 420) are provided along the circumferences of the supporting bodies (110, 210, 310, 410) and of mesh structures; the mounting members (120, 220, 420) include first regions (121, 222) and second regions (122, 223) provided along the circumferences of the supporting bodies (110, 210, 310, 410) and include the mesh structures formed by a plurality of mesh wires; in the first regions (121, 222), the plurality of mesh wires intersect and at least a portion of the mesh wires are fixedly connected at intersections.

Abstract: A delivery sheath and a medical device. The delivery sheath includes an outer canal and a traction structure. The outer canal includes a connecting canal, a canal body, and a distal canal. The canal body is located between the connecting canal and the distal canal. The canal body includes a first flexible canal, a spacer canal, and a second flexible canal. The spacer canal is provided between a distal end of the first flexible canal and a proximal end of the second flexible canal. The hardness of the connecting canal is greater than that of the first and second flexible canals, and the hardness of the spacer canal is greater than that of the first and second flexible canals. The traction structure includes a first traction fiber and a second traction fiber.