Side branch occlusion catheter device having integrated endoscope for performing endoscopically visualized occlusion of the side branches of an anatomical passageway
First Claim
1. A device for endoluminal embolization of the side branches of an anatomical passageway under endoscopic visualization, said device comprising:
- an elongate flexible catheter body having a longitudinal axis, a proximal end, a distal end, and at least first and second lumens extending longitudinally therethrough;
an embolization device disposed within said second lumen of said catheter body;
a side opening formed in said catheter body near the distal end thereof, said side opening being communicative with said second lumen and defining an exit port through which said embolization device exits said catheter body;
an endoscope disposed within the first lumen of said catheter body, said endoscope having a distal end and at least one image receiving port, said endoscope being alternately moveable back and forth, relative to said catheter body, between;
i. a distally advanced position whereat the image receiving port of said endoscope is positioned distal of the exit port and to provide viewing of an area ahead of the distal end of said catheter body; and
,ii. a proximally retracted position whereat the image receiving port of said endoscope is positioned to provide viewing of said side opening without obstructing passage of said embolization device out of said side opening.
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Accused Products
Abstract
The device for blocking (e.g., embolizing) the side branches of an anatomical passageway under endoscopic guidance. The device comprises an elongate catheter body having a side branch blocking apparatus, such as an embolization catheter, disposed therein and further incorporating an endoscope (e.g., an angioscope). The incorporated endoscope is useable to A) visually locate side branches which emanate from the anatomical passageway and b) visually observe the operation of the side branch blocking apparatus. Also disclosed are methods for utilizing a device of the forgoing character, including methods for performing in situ embolization of the side branches of a vein, under angioscopic visualization. The endoscopic component of the device may also be utilized to visually observe the use and/or effect of one or more separate device, such as valvulotome(s) used for cutting venous valves located within the lumen of a vein.
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Citations
18 Claims
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1. A device for endoluminal embolization of the side branches of an anatomical passageway under endoscopic visualization, said device comprising:
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an elongate flexible catheter body having a longitudinal axis, a proximal end, a distal end, and at least first and second lumens extending longitudinally therethrough; an embolization device disposed within said second lumen of said catheter body; a side opening formed in said catheter body near the distal end thereof, said side opening being communicative with said second lumen and defining an exit port through which said embolization device exits said catheter body; an endoscope disposed within the first lumen of said catheter body, said endoscope having a distal end and at least one image receiving port, said endoscope being alternately moveable back and forth, relative to said catheter body, between; i. a distally advanced position whereat the image receiving port of said endoscope is positioned distal of the exit port and to provide viewing of an area ahead of the distal end of said catheter body; and
,ii. a proximally retracted position whereat the image receiving port of said endoscope is positioned to provide viewing of said side opening without obstructing passage of said embolization device out of said side opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 16, 17, 18)
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13. A method of blocking side branches which emanate from an anatomical passageway, said method comprising the steps of:
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a) providing a device comprising; an elongate flexible catheter body having a longitudinal axis, a proximal end, a distal end, and at least first and second lumens extending longitudinally therethrough; an embolization device disposed within said second lumen of said catheter body; a side opening formed in said catheter body near the distal end thereof, said side opening being communicative with said second lumen and defining an exit port through which said embolization device exits said catheter body; an endoscope disposed within the first lumen of said catheter body, said endoscope having a distal end and at least one image receiving port, said endoscope being alternately moveable back and forth, relative to said catheter body, between; i. a distally advanced position whereat the image receiving port of said endoscope is positioned distal of the exit port and to provide viewing of an area ahead of the distal end of said catheter body; and
,ii. a proximally retracted position whereat the image receiving port of said endoscope is positioned to provide viewing of said side opening without obstructing passage of said embolization device out of said side opening; b) inserting said device into said anatomical passageway; c) positioning the endoscope of said device in its distally advanced position; d) advancing said device, distal end first, through said anatomical passageway while observing the visual image provided by said endoscope; e) stopping the advancement of said device when the visual image of said endoscope indicates that the distal end of said endoscope is adjacent a side branch emanating from said anatomical passageway; f) retracting said endoscope to its proximally retracted position; g) adjusting the positioning of said device, as necessary, to locate said side opening of said catheter body immediately adjacent the side branch emanating from said anatomical passageway; and h) utilizing said embolization device to pass at least one embolization member out of said side opening and into said side branch. - View Dependent Claims (14, 15)
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Specification