Systems and methods for luminal access
First Claim
Patent Images
1. A method for accessing a body lumen, said method comprising:
- disposing an everted edge of a lubricious sleeve adjacent to an access point on the body lumen; and
distally advancing a pusher tube against a proximal side of the everted edge to distally advance the everted edge into the body lumen, wherein an outer proximal end of the sleeve is immobilized relative to the pusher tube, and wherein a lumen tube is attached to an inner distal end of the sleeve and is drawn into the body lumen by the inner distal end of the sleeve;
wherein the lubricious sleeve is positioned through an endoscope prior to advancing the pusher tube.
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Accused Products
Abstract
A luminal access system comprises an evertable, lubricious sleeve, a pusher tube, and optionally a lumen tube. The evertable, lubricious sleeve is attached to a non-evertable sheath which is coaxially received over the pusher tube. A distal portion of the evertable sleeve folds or everts into an axial passage of the pusher tube where it is connected to a lumen tube. A distal portion of the pusher tube may be bendable, typically comprising a relatively soft polymer which is circumferentially reinforced to enhance hoop strength.
66 Citations
17 Claims
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1. A method for accessing a body lumen, said method comprising:
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disposing an everted edge of a lubricious sleeve adjacent to an access point on the body lumen; and distally advancing a pusher tube against a proximal side of the everted edge to distally advance the everted edge into the body lumen, wherein an outer proximal end of the sleeve is immobilized relative to the pusher tube, and wherein a lumen tube is attached to an inner distal end of the sleeve and is drawn into the body lumen by the inner distal end of the sleeve; wherein the lubricious sleeve is positioned through an endoscope prior to advancing the pusher tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for accessing a urinary tract, said method comprising:
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disposing an everted edge of a lubricious sleeve adjacent to an access point to a ureter; and distally advancing a pusher tube against a proximal side of the everted edge to distally advance the everted edge through the ureter and into the urinary tract, wherein an outer proximal end of the sleeve is immobilized relative to the pusher tube, and wherein a lumen tube is attached to an inner distal end of the sleeve and is drawn into the body lumen by the inner distal end of the sleeve. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification