The present invention discloses a steerable guidewire and a method for manufacturing the same, and a steerable catheter and a method for manufacturing the same. According to an aspect of the present invention, a steerable guidewire, which is inserted into a catheter and guides the catheter to a desired blood vessel, may include: a steerable tip part that can be bent in at least two stages due to a stimulus from the outside and that is steered in a predetermined direction; and a non-steerable tip part that is not steerable. The steerable tip part may include: a first steerable tip part having a first length and bent in a first angle with respect to the non-steerable tip part; and a second steerable tip part having one end connected to the first steerable tip part, having a second length, and bent and steered into a second angle with respect to the non-steerable tip part. The first steerable tip part may be positioned farther from the non-steerable tip part than the second steerable tip part. The first length of the first steerable tip part may be smaller than a sum of lengths of steerable tip parts other than the first steerable tip part, and the first angle may be steered so as to be larger than the second angle.

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.

An invasive medical device (10) is disclosed comprising a flexible sheath (11) enveloping at least one lumen (17, 17′) comprising an electrically conductive wire (20) including a deformable actuator (21) for deforming a section of the invasive medical device in response to an electric current provided through the electrically conductive wire, wherein the flexible sheath comprises a set of apertures (31) extending through the flexible sheath to the at least one lumen, said apertures being filled with an adhesive (33) anchoring the deformable actuator to the flexible sheath. A manufacturing method for such an invasive medical device (10) is also disclosed.

One aspect is a medical guidewire including a core wire with a proximal end extending out to a distal end and a resilient portion coupled to the distal end of the core wire at a distal tip section of the guidewire. The resilient portion includes a superelastic material.

A guide wire is described for navigating body channels such as vessels. The guide wire can include an elongated member having a proximal portion and a distal portion, and a fluid passage to transport a fluid from the proximal portion to the distal portion. The distal portion of the elongated member can include a shape memory material with two way memory effect. The shape memory material can have a transition temperature less than a body temperature such that the distal portion has a first shape at the body temperature and a second shape different from the first shape at a temperature less than the transition temperature.

This disclosure relates to a catheter system for introducing a heart valve stent into the body of a patient. The catheter system includes a catheter tip having a seat portion for accommodating the stent in its collapsed state and a stent holder for releasably fixing the stent, wherein the seat portion is constituted by a first sleeve and a second sleeve, said sleeves being moveable relative to each other and relative to the stent holder, and a catheter shaft for connecting the catheter tip to a handle.

The present disclosure provides for a fluid delivery device for a body vessel and a method of use. The fluid delivery device may have an elongate member having a proximal end extending along the longitudinal axis to a closed distal end. The elongate member may also have an inner wall defining a fluid delivery lumen and a wire guide lumen. The elongate member may have a tapered region and a distal portion between the proximal and distal ends. The device may have a first state for device delivery to the treatment site.

A system for ablating internal heart tissue in an ablation pattern on a surface of the tissue within the heart. The system includes an ablation catheter with a distal end having an ablating tip portion operative to allow selective ablation of tissue. A guiding device is engageable with the ablation catheter and includes a tissue anchoring portion operable to engage with tissue proximate to the tissue to be ablated so as to temporarily anchor the guiding device relative to the tissue. Engagement of the guiding device with the ablation catheter operates to assist with guiding the ablating tip portion in moving along the pattern. Various devices and methods of use are further disclosed.

A vascular access device to passively open a fluid path within a vasculature. The vascular access device may include a catheter and a guidewire. The catheter may have a proximal end, a tip, and a length of tubing therebetween. The guidewire may extend along the length of tubing and may include a bent portion. At least a portion of the length of tubing may substantially conform to the bent portion such that the tip of the catheter avoids an obstruction within the vasculature.

The present disclosure relates to guidewire devices having shapeable tips and effective torquability. A guidewire device includes a core having a proximal section and a tapered distal section. A tube structure is coupled to the core such that the tapered distal section extends into the tube structure. The tube structure includes a plurality of bypass cuts formed tangentially within the tube structure to increase the flexibility of the tube structure and to reduce the tendency of resilient forces from the tube structure to disrupt a shaped distal tip of the guidewire device.