In a sheath device for inserting a catheter into a patient's body, comprising a first sheath (10, 11, 13, 21, 21, 21, 41, 43) having a proximal end and a distal end, wherein when used as intended the distal end of the first sheath is provided for arrangement in the patient's body and the proximal end of the first sheath is provided for arrangement outside the patient's body, and wherein the first sheath comprises a tubular section (11, 21, 21, 21, 41) and a sheath housing (13, 43), which is disposed at the proximal end of the section and comprises a receiving channel (46) for a catheter, according to the invention the tubular section (11, 21, 21, 21, 41) is detachably held in a clamping element (45, 48, 50, 62, 63, 64) of the sheath housing in a non-positive manner so as to be able to easily shorten the tubular section.

An elongated guide sheath for delivering at least one medical instrument to a body lumen. For reliable and cost effective implantation of an electrode at the AV septum the inventive guide sheath forms a first guiding sleeve and a second guiding sleeve at least partly separated by a shared wall section, wherein the longitudinal axis of the first guiding sleeve and the longitudinal axis of the second guiding sleeve run parallel to a longitudinal guide sheath axis, wherein the wall of the first guiding sleeve and/or of the second guiding sleeve each comprises a slit which runs along at least part of the length of the respective guiding sleeve. Further, a system including the above guide sheath, a first catheter and/or guide wire and a second catheter or electrode is proposed.

A dilator comprises a guide extending through a tube, and a slidable sleeve exterior to the tube, such that a slit in the tube extending from a first end of the tube to a second end of the tube, opposite of the first end, is closed by a force applied via the slidable sleeve. When closed, the slit does not interfere with the tube being used as a dilator to dilate tissues of a patient through which the guide extends. When opened, the slit allows the tube to be placed onto the guide or removed from the guide.

A guide extension catheter may include a proximal shaft and a tubular distal sheath including an exchange channel allowing for access (e.g. side access) into the lumen. Guide extension catheters may be used in conjunction with a guide catheter and a medical device having a distal region disposed within the guide catheter and a proximal region disposed outside of the guide catheter. A portion of the proximal region of the medical device can be passed through the exchange channel and into the lumen, and the guide extension catheter can be advanced into the guide catheter over the medical device without removing the medical device from the guide catheter. The exchange channel can extend in a straight line path along the sheath, or may extend in an indirect path along the sheath.

Systems and methods for a multi-layered peel-away sheath assembly for insertion of a blood pump including a sheath hub and a sheath body having a proximal end that is connected to the sheath hub, and a distal end. The sheath body comprises multiple layers including a reinforcing layer. The reinforcing layer improves flexibility and kink resistance of the assembly The reinforcing layer can comprise LCP, PEBAX, stainless steel, Nitinol, or Kevlar. The reinforcing layer may be a laser-cut hypotube or a braided or coiled filament. The first layer material and the third layer material are thermoplastics, including PEBAX or TPU. The reinforcing layer has at least one discontinuity, which is aligned with peel-away lines in the sheath body to allow an operator to peel-away the assembly. The peel-away lines are formed of inner, outer notches, or both. The sheath hub also includes a discontinuity to allow the sheath hub to peel-away.

An apparatus comprising: (a) a hub assembly engaged by a podium in a manner which restricts rotation of said hub assembly with respect to said podium to a defined angle of rotation; (b) a swivel installed within said hub assembly in a manner which permits rotation of said swivel with respect to said hub assembly; and (c) a blade installed on an outer surface of said swivel, a cutting edge of said blade facing an inner wall of said hub assembly.

Systems and methods for a multi-layered peel-away sheath assembly for insertion of a blood pump, the peel-away sheath assembly including a sheath hub and a sheath body having a proximal end that is connected to the sheath hub, and a distal end. The sheath body comprises multiple layers including a reinforcing layer. The reinforcing layer improves flexibility and kink resistance of the assembly The reinforcing layer can comprise LCP, PEBAX, stainless steel, Nitinol, or Kevlar. The reinforcing layer may be a laser-cut hypotube or a braided or coiled filament. A first layer material and a third layer material are thermoplastics, including PEBAX or TPU. The reinforcing layer has at least one discontinuity, which is aligned with peel-away lines in the sheath body to allow an operator to peel-away the assembly. The peel-away lines are formed of inner notches, outer notches, or both. The sheath hub also includes a discontinuity to allow the sheath hub to peel-away.

A treatment tool includes a second sheath (12) having a slit (12e) through which a guide wire is configured to be taken in and out of a first lumen, and a sheath-retaining part having a guide wire insertion opening (20b) having a slit (20c) and a main opening (20d), wherein a first end portion of the second sheath (12) has a first side cut surface (12g) and a second side cut surface (12h) intersecting in an X-shape, an axially cut surface formed by cutting in parallel to a central axis (O12) from an end surface (12k), an opening surrounded by the first side cut surface (12g), the second side cut surface (12h), and the axially cut surface and communicating with the first lumen at a position overlapping the main opening (20d), and a piece-like part.

A guidewire advancing device used in connection with medical devices for providing intravascular access for advancing substantial length of guidewire used to place such medical devices within the anatomical structure. A method of managing substantial length of guidewire for use with medical devices. The guidewire advancing device includes a longitudinally extending wire guide which is removably secured to the medical device and which includes a longitudinally extending channel. The guidewire extends the length of the channel to be advanced along the channel.

The present disclosure relates to devices and methods for accessing a targeted vessel, such as a coronary artery, near the aortic root. A catheter device includes a proximal section, an intermediate section, and a distal section. The intermediate section includes a more proximal section (a proximal-intermediate section) and a more distal section (a distal-intermediate section). The proximal-intermediate section is microfabricated to enable preferred bending along a single plane. The distal-intermediate section is more rigid than the proximal-intermediate section and the distal section. In use, the proximal-intermediate section abuts against the aortic wall and bends to allow the distal-intermediate section to extend across the aortic root toward a targeted vessel on the opposite side of the aorta.