Navigation guide wire through an anatomical structure having branched ducts

Abstract

A navigation guide wire (1 ) through an anatomical apparatus, for example a vascular system, unusually capable of being safely positioned proximate to bifurcations, comprises: - an elongated body (19) having a proximal end (21 ), a distal end (20), and a longitudinal extension along an axis (x-x) extending at least from said proximal end to said distal end; - at least one first proximal portion (4) having a predetermined first flexural rigidity (KfI ) capable of a first predetermined flexure in at least one plane comprising at least one portion of said longitudinal axis in order to allow a first curvature to said proximal portion when bending stressed, while ensuring a predetermined elastic return in a rectilinear position of the elongated body proximal portion when not subjected to stresses; - at least one second distal portion (3) having a predetermined second flexural rigidity (Kf2), the amount of which is equal to or higher than said first flexural rigidity of said at least one first proximal portion, capable of a predetermined flexibility of said second distal portion in order to obtain a second curvature when bending stressed in at least one plane comprising at least one portion of said longitudinal axis, while ensuring an elastic return to a rectilinear position of said distal portion of said elongated body when not subjected to stress; - at least one intermediate length (6), arranged between said first proximal portion and said second distal portion, having a third flexural rigidity (Kf3) essentially lower than said first flexural rigidity (KfI ) and said second flexural rigidity (Kf2), which allows a predetermined flexibility capable of a third curvature substantially more pronounced compared to said first curvature and second curvature, so as to allow a considerable direction change between said first proximal portion (4) and said second distal portion (3).

Description

technical field [0001] The present invention generally relates to a guide wire capable of passing through an anatomical structure having branches, such as blood vessels. Background technique [0002] Medical devices, such as endoluminal or intravascular devices, have been used for many years to implement eg medical interventions. Medical devices, such as intravascular devices, can be introduced into a patient's anatomy, such as a vessel branch, at such catheter-friendly lengths, and then guided through the patient's anatomy to a desired location. In order to observe the position of the medical device, such as the position of its tip, X-ray equipment is used, which allows the operator to detect the position of the medical device, and in order to prevent the injection of the control substance from flowing into the catheter, the device can describe the position of the patient's anatomy 2D and 3D representations to guide the device and side branches through the catheter bifurca...

AI Technical Summary

Problems solved by technology

[0011] 2. Injury affecting the distal length of the main vessel;

[0012] 3. Injuries affecting side branches

In this way, the stent delivery system SDS further makes accurate positioning difficult due to frictional forces

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