A guide wire, a medical device, and a medical method are able to achieve satisfactory workability and while ensuring safety by preventing a puncture needle portion from performing erroneous puncture. A guide wire for guiding a dilator to be inserted into a living body includes a shaft portion, a puncture portion fixed to a distal portion of the shaft portion, and whose distal side includes a needle portion for forming a hole in a biological tissue, and a deformable deformation portion fixed to the shaft portion or the puncture portion. The deformation portion located inside the dilator restricts deflection of the distal portion of the shaft portion.

The disclosure provides various embodiments of catheters having articulable ends that can be used for various procedures. Embodiments of methods are also provided that can be performed with catheters in accordance with the present disclosure.

An elongated medical assembly has a distal-assembly tip. The distal-assembly tip is, at least in part, selectively maneuverable along an assembly-tip movement path terminating proximate to a first biological feature of a biological structure of a patient. An elongated puncture device has a distal puncture tip. The distal puncture tip is, at least in part, selectively deployable along a puncture-tip movement path extending from the elongated medical assembly and into, at least in part, the first biological feature, and also extending from the first biological feature toward a second biological feature of the patient.

Cerebrovascular treatment at an intracranial location beyond the petrous segment of the carotid artery can be challenging due to blood vessel size and tortuosity. First pass cerebrovascular thrombectomy success rate under only fluoroscopic guidance can be low (e.g., 25.1%) but an angioscope can help improve efficacy. A sheath catheter can be advanced toward the cerebrovascular pathology. Its distal balloon can be inflated. An angioscope can be inserted via its working lumen for viewing. The sheath catheter can have a stepped-down lateral profile and can extend the working channel a distance beyond the balloon. A dual concentric lumen structure can include an inner body and an outer body, defining an inflation lumen therebetween, with one or more portions of one or more layers stretched or cut or both, such as to provide bending flexibility. Reflow techniques can be used to help bond layers together.

A medical guidewire configured for puncturing a tissue. The medical guidewire includes an elongate guidewire body having a proximal portion with a first outer diameter and a distal portion with a second outer diameter. The second outer diameter is smaller than the first outer diameter, forming a tapered section between the first outer diameter and second outer diameter. The medical guidewire further includes a piercing device extending from the distal portion, forming a puncturing distal tip. An identification device is positioned on the elongate guidewire body on the first outer diameter proximal the tapered section. The identification device is configured to enhance detectable visibility of the medical guidewire.

A catheter according to an embodiment of the present disclosure includes a mesh member, a first hollow shaft, a front end tip, a guiding film, a second hollow shaft, and a core wire. The mesh member has a tubular shape and is radially expandable and contractable. The guiding film is disposed on the mesh member and has a front end located between a base end of the front end tip and a front end of the first hollow shaft. A thickness of the front end of the guiding film is larger than a thickness of a portion where a thickness of the guiding film is the smallest.

The present disclosure is directed a method of facilitating treatment via a vascular wall defining a vascular lumen containing an occlusion therein. The method may include providing a first intravascular device having a distal portion and at least one aperture and positioning the distal portion of the first intravascular device in the vascular wall. The method may further include providing a reentry device having a body and a distal tip, the distal tip having a natural state and a compressed state and inserting the distal tip, in the compressed state, in the distal portion of the first intravascular device. The method may further include advancing the distal tip, in the natural state, through the at least one aperture of the first intravascular device.

An elongated medical assembly is configured to be maneuverable proximate to a first biological feature of a patient. The elongated medical assembly is also configured to facilitate movement along an elongated length of the elongated medical assembly of a first medical device and a second medical device.

A robotic catheter procedure system for performing a procedure including a bedside system and a remote workstation is provided. The bedside system includes a first percutaneous device and a second percutaneous device. The bedside system also includes a first actuating mechanism configured to engage and to impart movement to the first percutaneous device and a second actuating mechanism configured to engage and to impart movement to the second percutaneous device. The remote workstation includes a user interface and a control system operatively coupled to the user interface and to the bedside system. The control system controlling the first actuating mechanism to cause movement of the first percutaneous device to create a bore through the lesion and the second actuating mechanism to cause movement of the second percutaneous device through the bore created by the first percutaneous device.

A heart valve therapeutic device (1) has an elongate anchor (7) wherein the anchor has a stiffness to hold its shape and location to support the valve element. The anchor may have a stylet or a shaped or stiff collar (70) arranged to provide a desired shape to the anchor (7) and it may be lockable. A prosthetic valve element (15) has leaflets (17) and is supported on the anchor by coupler (16, 50) at a desired location. There is an actuator for changing relative axial position of the proximal and distal couplers (16, 50) on the anchor. The anchor stiffness may be sufficient to provide sufficient support to resist axial forces from the ventricle in use without necessarily having a fixing element engaging heart tissue. The prosthetic leaflets (240) may extend proximally and radially outwardly, so that there is excellent co-apting of the native leaflets (NL) against the prosthetic leaflets (240).