A catheter device is configured to include a main body portion that is bendable and is provided on a distal end side, two systems of wire ropes coupled to a distal end portion of the main body portion with a space in a predetermined first direction, and an operating portion that is operable by a user operation and is coupled to a proximal end side of the two systems of the wire ropes with a space in the first direction. The main body portion is bendable in the first direction due to a tension state of the two systems of the wire ropes by bending the operating portion in the first direction.

A guide wire in which a housing of a sensor is easy to be curved and a slit is hard to fracture. The guide wire includes a core wire, a first helical body, a second helical body, a housing attached to the first helical body and the second helical body, and a pressure sensor located in an internal space of the housing. The housing has slits penetrating a peripheral wall and extending in helices. One of the slits has a central portion extending in the helix in an extending direction and an end portion bent with respect to the central portion along a bending direction.

The present disclosure provides a guide wire system comprising (a) a guide wire having a distal end and a proximal end, wherein the guide wire comprises a superelastic material, (b) a first connector coupled to the proximal end of the guide wire, (c) a second connector coupled to the guide wire between the distal end and the proximal end, (d) an electromagnetic sensor coupled to the distal end of the guide wire, and (e) a polymeric tube surrounding the guide wire and at least a portion of the electromagnetic sensor.

A guidewire, which can be used with a surgical navigation system, is provided. An elongate tube body defines a tube lumen and has longitudinally spaced proximal and distal body ends. The tube body includes a first longitudinal biasing portion including at least one first-direction helical cut therealong. The tube body also includes a second longitudinal biasing portion, including at least one second-direction helical cut therealong. The first direction is radially opposite the first direction. A core wire is at least partially located inside the tube lumen and has longitudinally spaced proximal and distal core wire ends. A tracking sensor is located at least partially within the tube lumen.

A guidewire for performing a transseptal puncture, the guidewire having a distal end and a proximal end with an elongated length therebetween. The guidewire has at least one recess along its elongated length. The distal end of the guidewire is configured to puncture tissue. At least one guidewire marker is configured to be securely positioned, respectively at said at least one recess of the elongated length of the guidewire.

A guide wire (1) for use with a catheter comprises a core wire (3) terminating in a distal portion (18) of flat ribbon-like construction having respective opposite major surfaces (29,30). A spring (24) is brazed to a distal end (27) of the distal portion (18) and to the core wire (3) at a tapering portion (14). A reinforcing member (38) extends axially along the distal portion (18) from a proximal end (26) of the distal portion (18) to a location (40) for reinforcing the distal portion (18) for in turn increasing its torsional rigidity in order to minimize axial twisting of the distal portion (18). A guide portion (42) of the distal portion (18) between the location (40) and the distal end (27) is provided to be bent at a desired set curved configuration for offsetting a distal tip (9) of the guide wire (1) from a central axis (8) thereof, so that by rotating the guide wire (1) at its proximal end (5) the distal portion (18) is also rotated for aligning the distal tip (9) with a branched vessel into which it is desired to direct and urge the guide wire (1).

An infusion catheter system may deliver a therapeutic agent to a desired location in the body. The system may include an elongate catheter shaft having a proximal end region, a distal end region, a distal opening, and a lumen extending between the proximal end region and distal opening. The distal end region may include a coiled portion having a preformed coiled configuration including a plurality of helically wound rings. A plurality of apertures may be formed through a sidewall of the coiled portion. A guidewire may be configured to be slidably disposed within the lumen of the catheter shaft. The guidewire may include a proximal end region having a first cross-sectional dimension, an enlarged distal end region having a second cross sectional dimension greater than the first cross-sectional dimension, and an intermediate region disposed between the proximal end region and the distal end region.

A guidewire including a thin elongated structure and an outer shell around at least a portion of the thin elongated structure. The outer shell includes a first portion and a second portion. The first portion and the second portion of the outer shell are each coupled to the thin elongated structure. The first portion is spaced from the second portion by a gap. The guidewire is configured to move between a flexible state and a rigid state. The gap has a first distance when the guidewire is in the flexible state and the gap has a second distance greater than the first distance when the guidewire is in the rigid state.

Intravascular devices, systems, and methods are disclosed. In some embodiments, a guidewire system for treating a patient includes an internal sensor mount having a body and a first cutout extending through a wall of the body; a core wire secured to the internal sensor mount; a sensor assembly for detecting a physiological characteristic of a patient secured to the internal sensor mount; an external housing disposed about the internal sensor mount and including an opening in communication with the cutout of the internal sensor mount; a proximal flexible member secured to at least one of the internal sensor mount and the external housing; a first distal flexible member secured to at least one of the internal sensor mount and the external housing; and at least one conductor electrically coupled to the sensor assembly and extending proximally beyond the internal sensor mount through the proximal flexible member.

A guide wire includes: a core shaft; an engagement part provided in outer circumference of the core shaft; a cylindrical body provided in an outside of the core shaft and movable along an axis line direction of the core shaft; and an engaged part that is provided in the cylindrical body, and engages with the engagement part when the cylindrical body moves in a first direction along the axis line direction of the core shaft to regulate further movement of the cylindrical body in the first direction.