A left atrium ablation catheter (4), including a sheath (8) and a deflectable electrophysiology catheter (10) housed within the sheath, is used to ablate coronary tissue at a target site within the left atrium (LA) of a heart.

The retractable sheath assembly comprises a retractable sheath and one or more skids (122) extending from the retractable sheath.

The disclosed introducer sheath assembly (21) has an introducer sheath (25) provided with: a sheath tube (23) which is introduced into a puncture site on a limb; and a sheath hub (24) which is mounted on the base side of the sheath tube.

The output-side double-clad fiber comprises a core, a first clad, and a second clad.

The delivery device includes a release sheath (154) assembly housed within an outer delivery sheath (52).

A sheath assembly can include inner and outer sheath bodies and a handle.

The safety shield assembly includes a sheath and a shuttle.

The apparatus comprises a double-clad or a multi-clad fibre.

The double-cla passive fiber further has a core surrounded by the inner cladding and an outer cladding.

A releasably locking dilator and sheath assembly (10,200,300) and methods for releasing the dilator (12) from the sheath and longitudinally splitting the sheath (14).

The disclosed sheath assembly includes at least one connector ring mounted with respect to a sheath member.

The two sleeve portions may be a part of a single alignment sleeve member.

An elongate sheath assembly surrounds the needle within the needle housing.

The hemostatic valve is configured to prevent blood in the blood vessel from exiting the introducer sheath assembly when the elongated sheath is located in the blood vessel.

Disclosed is an introducer sheath assembly which can sufficiently fix a sheath tube which has been introduced into a puncture site so that the sheath tube is not displaced.