Inner and outer telescoping catheter delivery system and method
First Claim
1. A method of delivering a payload to a destination vessel branching from a coronary sinus of a patient'"'"'s heart, comprising:
- inserting a catheter assembly into a right atrium of the patient'"'"'s heart, the catheter assembly comprising;
an outer catheter having an open lumen and a pre-formed distal end defined by a plurality of curved sections and a generally straight distal tip section, all of the curved sections in the pre-formed distal end being oriented so as to assume the same general direction of curvature, the generally straight distal tip section extending from a distal-most curved section in a direction defined by the curvature of the distal-most curved section;
an inner catheter having an open lumen and a pre-formed distal end having an open distal tip, the pre-formed distal end including at least two adjacent longitudinal sections of varying stiffness and a stiffness transition region between the at least two adjacent longitudinal sections of varying stiffness, at least a portion of the inner catheter including a braid covered by an exterior jacket, the inner catheter movably disposed within the open lumen of the outer catheter, the pre-formed distal end of the inner catheter extendable beyond the preformed distal end of the outer catheter, the inner and outer catheters operable to be axially rotated and longitudinally translated relative to one another such that the distal end of the outer catheter can assume a selectable plurality of multi-dimensional shapes appropriate for accessing the coronary sinus;
locating and cannulating the patient'"'"'s coronary sinus by adjusting a relative orientation or longitudinal position of the inner catheter relative to the outer catheter such that one or both of a bend radius and a bend angle of the pre-formed distal end of the outer catheter is modified;
longitudinally sliding the outer catheter over the distal end of the inner catheter to deep seat the outer catheter within the patient'"'"'s coronary sinus;
longitudinally sliding the inner catheter out of the proximal end of the catheter assembly to remove the inner catheter; and
delivering a payload to the destination vessel through the outer catheter.
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Accused Products
Abstract
A method of delivering a payload to a destination vessel branching from a coronary sinus of a patient'"'"'s heart. The method comprises inserting a catheter assembly into a right atrium of the patient'"'"'s heart. The catheter assembly comprises an outer catheter and an inner catheter movably disposed within the open lumen of the outer catheter. The inner and outer catheters are operable to be rotated and translated relative to one another such that the distal end of the outer catheter can assume a selectable plurality of shapes appropriate for accessing the coronary sinus. The method further comprises locating and cannulating the patient'"'"'s coronary sinus by adjusting a relative orientation or longitudinal position of the inner catheter relative to the outer catheter, longitudinally sliding the outer catheter over the distal end of the inner catheter to deep seat the outer catheter within the patient'"'"'s coronary sinus, and delivering a payload to the destination vessel through the outer catheter or the inner catheter.
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Citations
20 Claims
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1. A method of delivering a payload to a destination vessel branching from a coronary sinus of a patient'"'"'s heart, comprising:
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inserting a catheter assembly into a right atrium of the patient'"'"'s heart, the catheter assembly comprising; an outer catheter having an open lumen and a pre-formed distal end defined by a plurality of curved sections and a generally straight distal tip section, all of the curved sections in the pre-formed distal end being oriented so as to assume the same general direction of curvature, the generally straight distal tip section extending from a distal-most curved section in a direction defined by the curvature of the distal-most curved section; an inner catheter having an open lumen and a pre-formed distal end having an open distal tip, the pre-formed distal end including at least two adjacent longitudinal sections of varying stiffness and a stiffness transition region between the at least two adjacent longitudinal sections of varying stiffness, at least a portion of the inner catheter including a braid covered by an exterior jacket, the inner catheter movably disposed within the open lumen of the outer catheter, the pre-formed distal end of the inner catheter extendable beyond the preformed distal end of the outer catheter, the inner and outer catheters operable to be axially rotated and longitudinally translated relative to one another such that the distal end of the outer catheter can assume a selectable plurality of multi-dimensional shapes appropriate for accessing the coronary sinus; locating and cannulating the patient'"'"'s coronary sinus by adjusting a relative orientation or longitudinal position of the inner catheter relative to the outer catheter such that one or both of a bend radius and a bend angle of the pre-formed distal end of the outer catheter is modified; longitudinally sliding the outer catheter over the distal end of the inner catheter to deep seat the outer catheter within the patient'"'"'s coronary sinus; longitudinally sliding the inner catheter out of the proximal end of the catheter assembly to remove the inner catheter; and delivering a payload to the destination vessel through the outer catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of delivering a payload to a destination vessel branching from a coronary sinus of a patient'"'"'s heart, comprising:
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inserting a catheter assembly into a right atrium of the patient'"'"'s heart, the catheter assembly comprising; an outer catheter having an open lumen and a pre-formed distal end defined by a plurality of curved sections and a generally straight distal tip section, all of the curved sections in the pre-formed distal end being oriented so as to assume the same general direction of curvature, the generally straight distal tip section extending from a distal-most curved section in a direction defined by the curvature of the distal-most curved section; an inner catheter having an open lumen and a pre-formed distal end having an open distal tip, the pre-formed distal end including at least two adjacent longitudinal sections of varying stiffness and a stiffness transition region between the at least two adjacent longitudinal sections of varying stiffness, at least a portion of the inner catheter including a braid covered by an exterior jacket, the inner catheter movably disposed within the open lumen of the outer catheter, the pre-formed distal end of the inner catheter extendable beyond the preformed distal end of the outer catheter; the inner and outer catheters operable to be rotated and translated relative to one another such that the distal end of the outer catheter can assume a selectable plurality of multi-dimensional shapes appropriate for accessing the coronary sinus; locating and cannulating the patient'"'"'s coronary sinus by adjusting a relative orientation or longitudinal position of the inner catheter relative to the outer catheter such that one of both of a bend radius and a bend angle of the pre-formed distal end of the outer catheter is modified; longitudinally advancing the inner catheter within the outer catheter to a location within or proximate the destination vessel; inserting a payload through the inner catheter to a position within the destination vessel; and longitudinally sliding the inner catheter and the outer catheter over the payload to remove the inner and outer catheters from the patient while leaving the payload positioned in the destination vessel. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A method of delivering a payload to a destination vessel branching from a coronary sinus of a patient'"'"'s heart, comprising:
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inserting a catheter assembly into a right atrium of the patient'"'"'s heart, the catheter assembly, comprising; an outer catheter having an open lumen and a pre-formed distal end defined by a plurality of curved sections and a generally straight distal tip section, all of the curved sections in the pre-formed distal end being oriented so as to assume the same general direction of curvature, the generally straight distal tip section extending from a distal-most curved section in a direction defined by the curvature of the distal-most curved section; an inner catheter having an open lumen and a pre-formed distal end having an open distal tip, the pre-formed distal end including at least two adjacent longitudinal sections of varying stiffness and a stiffness transition region between the at least two adjacent longitudinal sections of varying stiffness, at least a portion of the inner catheter including a braid covered by an exterior jacket, the inner catheter movably disposed within the open lumen of the outer catheter, the pre-formed distal end of the inner catheter extendable beyond the preformed distal end of the outer catheter; selectively altering a shape of the catheter assembly by adjusting a relative orientation or longitudinal position of the inner catheter relative to the outer catheter such that one or both of a bend radius and a bend angle of the pre-formed distal end of the outer catheter is modified, in order to locate and cannulate the patient'"'"'s coronary sinus; longitudinally advancing the inner catheter to a location within or proximate the destination vessel; inserting a payload through the inner catheter to a position within the destination vessel; and longitudinally sliding the inner catheter and the outer catheter to remove the inner and outer catheters from the patient while leaving the payload positioned in the destination vessel. - View Dependent Claims (20)
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Specification