Retrograde coronary sinus catheter
First Claim
1. A coronary sinus catheter for the retrograde infusion of cardioplegia solution into the coronary sinus of a patient'"'"'s heart, the catheter comprising:
- a flexible, elongate catheter tube having proximal and distal ends and an outer diameter, and including at least an infusion lumen extending longitudinally through the tube, at least one infusion lumen outlet generally adjacent the distal end of the catheter tube, and means adjacent the proximal end of the catheter tube for connecting a source of cardioplegia solution to the catheter; and
an inflatable balloon on the catheter tube generally adjacent the distal end of the catheter tube proximally of the infusion lumen outlet, the inflatable balloon being expandable as the balloon is inflated from an un-inflated diameter, generally equal to the outer diameter of the catheter tube for introducing the catheter into the coronary sinus, to an inflated diameter, substantially greater than the outer diameter of the catheter tube for securing the distal end of the catheter in the coronary sinus;
the inflatable balloon having a plurality of outwardly-facing, spaced-apart, segmented, annular ribs or lands for frictionally engaging the coronary sinus, each segmented annular rib or land comprising a plurality of solid, raised, generally elongate rib portions separated by non-raised portions extending annularly around the periphery of the balloon in alternating fashion, the non-raised portions preferentially stretching in comparison to the raised rib portions as the balloon is inflated to its inflated diameter, the balloon, including the ribs or lands, being integrally molded of generally uniform elastomeric material; and
the raised rib portions of adjacent ribs or lands being staggered such that the raised rib portions of one rib or land are generally longitudinally aligned with the non-raised portions of the adjacent rib or land.
1 Assignment
0 Petitions
Accused Products
Abstract
A coronary sinus catheter for the retrograde infusion of cardioplegia solutions into the coronary sinus. The catheter is adapted for improved retention in the coronary sinus. The catheter comprises a catheter tube having infusion, pressure-sensing and balloon-inflation lumens, an inflatable balloon and a pressure sensor tube in fluid communication with the balloon-inflation lumen for sensing pressure in the inflatable balloon. The internal volume of the pressure sensor tube is relatively non-expansible relative to the internal volume of the inflation balloon in normal operation of the catheter. The balloon includes a plurality of segmented annular ribs.
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Citations
85 Claims
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1. A coronary sinus catheter for the retrograde infusion of cardioplegia solution into the coronary sinus of a patient'"'"'s heart, the catheter comprising:
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a flexible, elongate catheter tube having proximal and distal ends and an outer diameter, and including at least an infusion lumen extending longitudinally through the tube, at least one infusion lumen outlet generally adjacent the distal end of the catheter tube, and means adjacent the proximal end of the catheter tube for connecting a source of cardioplegia solution to the catheter; and an inflatable balloon on the catheter tube generally adjacent the distal end of the catheter tube proximally of the infusion lumen outlet, the inflatable balloon being expandable as the balloon is inflated from an un-inflated diameter, generally equal to the outer diameter of the catheter tube for introducing the catheter into the coronary sinus, to an inflated diameter, substantially greater than the outer diameter of the catheter tube for securing the distal end of the catheter in the coronary sinus; the inflatable balloon having a plurality of outwardly-facing, spaced-apart, segmented, annular ribs or lands for frictionally engaging the coronary sinus, each segmented annular rib or land comprising a plurality of solid, raised, generally elongate rib portions separated by non-raised portions extending annularly around the periphery of the balloon in alternating fashion, the non-raised portions preferentially stretching in comparison to the raised rib portions as the balloon is inflated to its inflated diameter, the balloon, including the ribs or lands, being integrally molded of generally uniform elastomeric material; and the raised rib portions of adjacent ribs or lands being staggered such that the raised rib portions of one rib or land are generally longitudinally aligned with the non-raised portions of the adjacent rib or land. - View Dependent Claims (2, 3, 4, 6)
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5. A coronary sinus catheter for the retrograde infusion of cardioplegia solution into the coronary sinus of a patient'"'"'s heart, the catheter comprising:
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a flexible, elongate catheter tube having proximal and distal ends and an outer diameter, and including at least an infusion lumen extending longitudinally through the tube, at least one infusion lumen outlet generally adjacent the distal end of the catheter tube, and means adjacent the proximal end of the catheter tube for connecting a source of cardioplegia solution to the catheter; and an inflatable balloon on the catheter tube generally adjacent the distal end of the catheter tube proximally of the infusion lumen outlet, the inflatable balloon being expandable as the balloon is inflated from an un-inflated diameter, generally equal to the outer diameter of the catheter tube for introducing the catheter into the coronary sinus, to an inflated diameter, substantially greater than the outer diameter of the catheter tube for securing the distal end of the catheter in the coronary sinus; the inflatable balloon having a plurality of outwardly-facing, spaced-apart, segmented, annular ribs or lands for frictionally engaging the coronary sinus, each segmented annular rib or land comprising a plurality of solid, raised, generally elongate rib portions separated by non-raised portions extending annularly around the periphery of the balloon in alternating fashion, the non-raised portions preferentially stretching in comparison to the raised rib portions as the balloon is inflated to its inflated diameter, the balloon, including the ribs or lands, being integrally molded of generally uniform elastomeric material; and the generally elongate raised rib portions having a direction of elongation extending generally circumferentially along the balloon. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A coronary sinus catheter for the retrograde infusion of cardioplegia solution into the coronary sinus of a patient'"'"'s heart, the catheter comprising:
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a flexible, elongate catheter tube having proximal and distal ends and an outer diameter, and including at least an infusion lumen extending longitudinally through the tube, at least one infusion lumen outlet generally adjacent the distal end of the catheter tube, and means adjacent the proximal end of the catheter tube for connecting a source of cardioplegia solution to the catheter; and an inflatable balloon on the catheter tube generally adjacent the distal end of the catheter tube proximally of the infusion lumen outlet, the inflatable balloon being expandable as the balloon is inflated from an un-inflated diameter, generally equal to the outer diameter of the catheter tube for introducing the catheter into the coronary sinus, to an inflated diameter, substantially greater than the outer diameter of the catheter tube for securing the distal end of the catheter in the coronary sinus; the inflatable balloon having a plurality of outwardly-facing, spaced-apart, segmented, annular ribs or lands for frictionally engaging the coronary sinus, each segmented annular rib or land comprising a plurality of solid, raised, generally elongate rib portions separated by non-raised portions extending annularly around the periphery of the balloon in alternating fashion, the non-raised portions preferentially stretching in comparison to the raised rib portions as the balloon is inflated to its inflated diameter, the balloon, including the ribs or lands, being integrally molded of generally uniform elastomeric material; and the raised rib portions having a generally asymmetrical profile along the longitudinal direction of the catheter, the raised rib portions having an upper surface sloping smoothly and gradually in the distal direction to the surface of the balloon, and a proximal surface extending from the upper surface more steeply to the surface of the balloon than the upper surface slopes to the surface of the balloon.
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14. A coronary sinus catheter for the retrograde infusion of cardioplegia solution into the coronary sinus of a patient'"'"'s heart, the catheter comprising:
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a flexible, elongate catheter tube having proximal and distal ends and an outer diameter, and including at least an infusion lumen extending longitudinally through the tube, at least one infusion lumen outlet generally adjacent the distal end of the catheter tube, and means adjacent the proximal end of the catheter tube for connecting a source of cardioplegia solution to the catheter; and an inflatable balloon on the catheter tube generally adjacent the distal end of the catheter tube proximally of the infusion lumen outlet; the inflatable balloon having a plurality of outwardly-facing, spaced-apart, segmented, annular ribs or lands for engaging the coronary sinus, each segmented annular rib or land comprising a plurality of solid, raised rib portions separated by non-raised portions extending annularly around the periphery of the balloon in alternating fashion; wherein the raised rib portions have a generally asymmetrical profile along the longitudinal direction of the catheter, the raised rib portions having an upper surface sloping smoothly and gradually in the distal direction to the surface of the balloon, and a proximal surface extending from the upper surface more steeply to the surface of the balloon than the upper surface slopes to the surface of the balloon. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A coronary sinus catheter for the retrograde infusion of cardioplegia solution into the coronary sinus of a patient'"'"'s heart, the catheter comprising:
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a flexible, elongate catheter tube having proximal and distal ends and an outer diameter, and including at least an infusion lumen extending longitudinally through the tube, at least one infusion lumen outlet generally adjacent the distal end of the catheter tube, and means adjacent the proximal end of the catheter tube for connecting a source of cardioplegia solution to the catheter; and an inflatable balloon on the catheter tube generally adjacent the distal end of the catheter tube proximally of the infusion lumen outlet, the inflatable balloon being expandable as the balloon is inflated from an un-inflated diameter, generally equal to the outer diameter of the catheter tube for introducing the catheter into the coronary sinus, to an inflated diameter, substantially greater than the outer diameter of the catheter tube for securing the distal end of the catheter in the coronary sinus; the inflatable balloon having a plurality of outwardly-facing, spaced-apart, segmented, annular ribs or lands for engaging the coronary sinus, each segmented annular rib or land comprising a plurality of solid, raised, generally elongate rib portions separated by non-raised portions extending annularly around the periphery of the balloon in alternating fashion; wherein the raised rib portions have a generally asymmetrical profile along the longitudinal direction of the catheter, the raised rib portions having an upper surface sloping smoothly and gradually in the distal direction to the surface of the balloon, and a proximal surface extending from the upper surface more steeply to the surface of the balloon than the upper surface slopes to the surface of the balloon. - View Dependent Claims (46, 47, 48)
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49. A coronary sinus catheter for the retrograde infusion of cardioplegia solution into the coronary sinus of a patient'"'"'s heart, the catheter comprising:
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a flexible, elongate catheter tube having proximal and distal ends and an outer diameter, and including at least an infusion lumen extending longitudinally through the tube, at least one infusion lumen outlet generally adjacent the distal end of the catheter tube, and means adjacent the proximal end of the catheter tube for connecting a source of cardioplegia solution to the catheter; and an inflatable balloon on the catheter tube generally adjacent the distal end of the catheter tube proximally of the infusion lumen outlet, the inflatable balloon being expandable as the balloon is inflated from an un-inflated diameter, generally equal to the outer diameter of the catheter tube for introducing the catheter into the coronary sinus, to an inflated diameter, substantially greater than the outer diameter of the catheter tube for securing the distal end of the catheter in the coronary sinus; the inflatable balloon having a plurality of outwardly-facing, spaced-apart, segmented, annular ribs or lands for engaging the coronary sinus, each segmented annular rib or land comprising a plurality of solid, raised, generally elongate rib portions separated by non-raised portions extending annularly around the periphery of the balloon in alternating fashion; the balloon comprising a molded balloon having two tubular extensions that are glued to the catheter tube to mount the balloon on the catheter tube; and the tubular extensions including annular ribs extending radially inwardly adjacent the expandable portion of the balloon to provide an even glue line adjacent the expandable portion of the balloon. - View Dependent Claims (50, 51, 52, 53, 54)
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55. A coronary sinus catheter for the retrograde infusion of cardioplegia solution into the coronary sinus of a patient'"'"'s heart, the catheter comprising:
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a flexible, elongate catheter tube having proximal and distal ends and an outer diameter, and including at least an infusion lumen extending longitudinally through the tube, at least one infusion lumen outlet generally adjacent the distal end of the catheter tube, and means adjacent the proximal end of the catheter tube for connecting a source of cardioplegia solution to the catheter; and an inflatable balloon on the catheter tube generally adjacent the distal end of the catheter tube proximally of the infusion lumen outlet, the inflatable balloon being expandable as the balloon is inflated from an un-inflated diameter, generally equal to the outer diameter of the catheter tube for introducing the catheter into the coronary sinus, to an inflated diameter, substantially greater than the outer diameter of the catheter tube for securing the distal end of the catheter in the coronary sinus; the inflatable balloon having a plurality of outwardly-facing, spaced-apart, segmented, annular ribs or lands for engaging the coronary sinus, each segmented annular rib or land comprising a plurality of solid, raised, generally elongate rib portions separated by non-raised portions extending annularly around the periphery of the balloon in alternating fashion; wherein the generally elongate raised rib portions have a direction of elongation extending generally circumferentially along the balloon, the raised rib portions having a length along their direction of elongation longer than the distance between adjacent raised rib portions along the non-raised portion separating the adjacent raised rib portions; the raised rib portions of one segmented rib or land each have a length along their direction of elongation generally equal to the other raised rib portions of that segmented rib or land; the non-raised portions of one segmented rib or land each defining a distance between adjacent raised rib portions generally equal to the distance between raised rib portions defined by the other non-raised portions of that segmented rib or land; the catheter tube further defining a pressure lumen having lumen outlet generally adjacent the distal end of the catheter tube; the balloon and rib portions are integrally formed of elastomeric silicone material having a Shore A hardness of between approximately 20 and 35; wherein the raised rib portions have a generally asymmetrical profile along the longitudinal direction of the catheter, the raised rib portions having an upper surface sloping smoothly and gradually in the distal direction to the surface of the balloon, and a proximal surface extending from the upper surface more steeply to the surface of the balloon than the upper surface slopes to the surface of the balloon; the plurality of segmented ribs or lands comprising three to seven segmented ribs or lands; the balloon comprising a molded balloon having two tubular extensions that are glued to the catheter tube to mount the balloon on the catheter tube; and the tubular extensions including annular ribs extending radially inwardly adjacent the expandable portion of the balloon to provide an even glue line adjacent the expandable portion of the balloon.
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56. A coronary sinus catheter assembly for the retrograde infusion of cardioplegia solution into the coronary sinus of a patient'"'"'s heart, the catheter assembly comprising:
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a catheter comprising; a flexible, elongate catheter tube having proximal and distal ends and an outer diameter, and including at least an infusion lumen extending longitudinally through the tube, at least one infusion lumen outlet generally adjacent the distal end of the catheter tube, and means adjacent the proximal end of the catheter tube for connecting a source of cardioplegia solution to the catheter; and an inflatable balloon on the catheter tube generally adjacent the distal end of the catheter tube proximally of the infusion lumen outlet; the inflatable balloon having a plurality of outwardly-facing, spaced-apart, segmented, annular ribs or lands for engaging the coronary sinus, each segmented annular rib or land comprising a plurality of solid, raised rib portions separated by non-raised portions extending annularly around the periphery of the balloon in alternating fashion, the raised rib portions of adjacent ribs or lands are staggered such that the raised rib portions of one rib or land are generally longitudinally aligned with the non-raised portions of the adjacent rib or land; and a stylet removably received in the infusion lumen of the catheter. - View Dependent Claims (57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74)
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75. A coronary sinus catheter assembly for the retrograde infusion of cardioplegia solution into the coronary sinus of a patient'"'"'s heart, the catheter assembly comprising:
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a catheter comprising; a flexible, elongate catheter tube having proximal and distal ends and an outer diameter, and including at least an infusion lumen extending longitudinally through the tube, at least one infusion lumen outlet generally adjacent the distal end of the catheter tube, and means adjacent the proximal end of the catheter tube for connecting a source of cardioplegia solution to the catheter; and an inflatable balloon on the catheter tube generally adjacent the distal end of the catheter tube proximally of the infusion lumen outlet, the inflatable balloon being expandable as the balloon is inflated from an un-inflated diameter, generally equal to the outer diameter of the catheter tube for introducing the catheter into the coronary sinus, to an inflated diameter, substantially greater than the outer diameter of the catheter tube for securing the distal end of the catheter in the coronary sinus; the inflatable balloon having a plurality of outwardly-facing, spaced-apart, segmented, annular ribs or lands for engaging the coronary sinus, each segmented annular rib or land comprising a plurality of solid, raised, generally elongate rib portions separated by non-raised portions extending annularly around the periphery of the balloon in alternating fashion, the raised rib portions of adjacent ribs or lands being staggered such that the raised rib portions of one rib or land are generally longitudinally aligned with the non-raised portions of the adjacent rib or land; and a stylet removably received in the infusion lumen of the catheter. - View Dependent Claims (76)
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77. A coronary sinus catheter assembly for the retrograde infusion of cardioplegia solution into the coronary sinus of a patient'"'"'s heart, the catheter assembly comprising:
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a catheter comprising; a flexible, elongate catheter tube having proximal and distal ends and an outer diameter, and including at least an infusion lumen extending longitudinally through the tube, at least one infusion lumen outlet generally adjacent the distal end of the catheter tube, and means adjacent the proximal end of the catheter tube for connecting a source of cardioplegia solution to the catheter; and an inflatable balloon on the catheter tube generally adjacent the distal end of the catheter tube proximally of the infusion lumen outlet, the inflatable balloon being expandable as the balloon is inflated from an un-inflated diameter, generally equal to the outer diameter of the catheter tube for introducing the catheter into the coronary sinus, to an inflated diameter, substantially greater than the outer diameter of the catheter tube for securing the distal end of the catheter in the coronary sinus; the inflatable balloon having a plurality of outwardly-facing, spaced-apart, segmented, annular ribs or lands for engaging the coronary sinus, each segmented annular rib or land comprising a plurality of solid, raised, generally elongate rib portions separated by non-raised portions extending annularly around the periphery of the balloon in alternating fashion; and a stylet removably received in the infusion lumen of the catheter; the balloon comprising a molded balloon having two tubular extensions that are glued to the catheter tube to mount the balloon on the catheter tube; and the tubular extensions including annular ribs extending radially inwardly adjacent the expandable portion of the balloon to provide an even glue line adjacent the expandable portion of the balloon. - View Dependent Claims (78)
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79. A cardiovascular catheter comprising:
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a flexible, elongate catheter tube having proximal and distal ends and an outer diameter, and including at least an infusion lumen extending longitudinally through the tube, at least one infusion lumen outlet generally adjacent the distal end of the catheter tube, and means adjacent the proximal end of the catheter tube for connecting a source of fluid to the catheter; and an inflatable balloon on the catheter tube generally adjacent the distal end of the catheter tube proximally of the infusion lumen outlet; the inflatable balloon having a plurality of outwardly-facing, spaced-apart, segmented, annular ribs or lands for engaging the internal walls of a blood vessel, each segmented annular rib or land comprising a plurality of solid, raised, generally elongate rib portions separated by non-raised portions extending circumferentially around the periphery of the balloon in alternating fashion, the raised rib portions having a direction of elongation extending generally circumferentially along the balloon, the balloon, including the ribs or lands, being integrally molded of generally uniform elastomeric material. - View Dependent Claims (80, 81, 82, 83, 84)
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85. A cardiovascular catheter comprising:
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a flexible, elongate catheter tube having proximal and distal ends and an outer diameter, and including at least an infusion lumen extending longitudinally through the tube, at least one infusion lumen outlet generally adjacent the distal end of the catheter tube, and means adjacent the proximal end of the catheter tube for connecting a source of fluid to the catheter; and an inflatable balloon on the catheter tube generally adjacent the distal end of the catheter tube proximally of the infusion lumen outlet, the inflatable balloon having a plurality of outwardly-facing, spaced-apart, segmented, annular ribs or lands for engaging the internal walls of a blood vessel, each segmented annular rib or land comprising a plurality of solid, raised rib portions separated by non-raised portions extending annularly around the periphery of the balloon in alternating fashion; the balloon comprising an expandable portion and two tubular extensions extending from opposite ends of the expandable portion, the tubular extensions being glued to the catheter tube to mount the expandable portion of the balloon on the catheter tube, the tubular extensions including annular ribs extending radially inwardly adjacent the expandable portion of the balloon to provide an even glue line adjacent the expandable portion of the balloon.
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Specification