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Publication Number
US-8652162-B2
Publication Date
2014-02-18
Expiration Date
Abstract
The present invention relates to a catheter suitable for conducting and positioning a medical device in an organic cavity comprising at least one side branch, such as a blood vessel, which comprises a tubular body, having a central lumen having a cross-section suitable for the passage of the medical device and a mandrel slidable in the central lumen and distally a flexible end portion. On the outer surface of the mandrel there is a longitudinal groove defining, with the inner wall of the tubular body, a passage suitable for receiving a first guide wire in a sliding manner. In addition, in the mandrel there is an inner lumen suitable for housing a second guide wire in a sliding manner. The present invention further relates to a catheter assembly comprising the aforesaid catheter and a method of use the same.
Core Innovation
The invention relates to a catheter assembly suitable for conducting and positioning a medical device in an organic vessel having a main cavity and at least one side branch. The catheter assembly comprises first and second guide wires and a catheter with a tubular body around a longitudinal axis (X), the tubular body having a central lumen for passage of the medical device and a distal radially expandable balloon configurable between a non-expanded state defining a translation configuration and an expanded state defining an anchorage configuration.
The catheter further includes an inflation lumen for introduction of a fluid suitable for causing expansion and/or contraction of the balloon, enabling a translation-to-anchor transition. A mandrel is slidably positioned inside the central lumen and includes a flexible distal end portion with a proximal extremity and a distal extremity, the flexible distal end portion having one of a substantially elliptical, oval or semicircular cross-section.
The mandrel outer surface faces the tubular body and includes a longitudinal groove that defines, with an inner wall of the tubular body, a passage suitable for receiving the first guide wire in a sliding manner. The mandrel also includes an inner lumen suitable for receiving the second guide wire in a sliding manner, extending within the proximal portion and the flexible distal end portion, with a tip opening at the distal extremity of the flexible distal end portion.
Claims Coverage
The partial set identifies one independent claim (clm-00001). It covers a catheter assembly with two guide wires, a mandrel having a longitudinal groove and an inner lumen, and a tubular body with a central lumen and a radially expandable balloon controllable via an inflation lumen, for use in an organic vessel with a main cavity and at least one side branch.
Dual guide-wire catheter assembly for side-branch positioning
A catheter assembly suitable for conducting and positioning a medical device in an organic vessel having a main cavity and at least one side branch, comprising first and second guide wires and a catheter with a tubular body and a mandrel slidably positioned in a central lumen.
Tubular body with radially expandable balloon and inflation lumen
A tubular body having a central lumen along a longitudinal axis (X) allowing passage of at least one medical device, wherein the tubular body distally comprises a radially expandable balloon configurable between a non-expanded translation configuration and an expanded anchorage configuration, and wherein the tubular body comprises an inflation lumen for introduction of a fluid suitable for causing expansion and/or contraction of the balloon.
Mandrel with longitudinal groove passage for sliding first guide wire
A mandrel slidably positioned inside the central lumen, including a flexible distal end portion with one of substantially elliptical, oval or semicircular cross-section and a proximal portion with an outer surface facing the tubular body, where a longitudinal groove forms, with an inner wall of the tubular body, a passage suitable for receiving the first guide wire in sliding manner, and where the longitudinal groove ends at the proximal extremity with a distal opening in the direction of the longitudinal axis (X).
Mandrel inner lumen with tip opening for sliding second guide wire
An inner lumen disposed in the proximal portion and flexible distal end portion of the mandrel, suitable for receiving the second guide wire in sliding manner, with a tip opening for accessing the inner lumen disposed at the distal extremity of the flexible distal end portion.
Overall, the independent claim coverage centers on a side-branch capable catheter assembly using two guide wires with a mandrel that provides a longitudinal groove passage for the first guide wire and an inner lumen with a distal tip opening for the second guide wire, combined with a tubular body having a central lumen and a radially expandable balloon controllable between translation and anchorage configurations via an inflation lumen.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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