Endoscopic methods and devices for transnasal procedures
First Claim
1. A method for positioning a guide device configured for delivering at least one working device therethrough to deliver a working end portion of the at least one working device to a desired location within the ear, nose, throat or cranium of a human or animal patient, wherein the guide device defines a longitudinal axis and comprises an elongated shaft including a first tube defining a first channel and a second tube defining a second channel, wherein the second tube extends along the first tube, wherein the first tube comprises a first distal tip and the second tube comprises an angled second distal tip disposed at an oblique angle relative to the longitudinal axis, wherein the angled second distal tip extends distally from the second tube to at least the first distal tip, the method comprising the steps of:
- (a) inserting an endoscope into or through the first channel of the guide device;
(b) inserting the guide device into an internal space of the patient;
(c) advancing the endoscope relative to the first channel such that an end of the endoscope traverses the angled second distal tip of the second tube; and
(d) viewing the internal space via the endoscope to guide positioning and delivery of the guide device to an intended location in the patient.
1 Assignment
0 Petitions
Accused Products
Abstract
Medical devices, systems and methods that are useable to facilitate transnasal insertion and positioning of guidewires and various other devices and instruments at desired locations within the ear, nose, throat, paranasal sinuses or cranium. Direct viewing of such placements via an endoscope.
892 Citations
20 Claims
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1. A method for positioning a guide device configured for delivering at least one working device therethrough to deliver a working end portion of the at least one working device to a desired location within the ear, nose, throat or cranium of a human or animal patient, wherein the guide device defines a longitudinal axis and comprises an elongated shaft including a first tube defining a first channel and a second tube defining a second channel, wherein the second tube extends along the first tube, wherein the first tube comprises a first distal tip and the second tube comprises an angled second distal tip disposed at an oblique angle relative to the longitudinal axis, wherein the angled second distal tip extends distally from the second tube to at least the first distal tip, the method comprising the steps of:
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(a) inserting an endoscope into or through the first channel of the guide device; (b) inserting the guide device into an internal space of the patient; (c) advancing the endoscope relative to the first channel such that an end of the endoscope traverses the angled second distal tip of the second tube; and (d) viewing the internal space via the endoscope to guide positioning and delivery of the guide device to an intended location in the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for positioning a guide device in a head of a patient, wherein the guide device defines a longitudinal axis and comprises an elongated shaft including a first tube defining a first channel and a second tube defining a second channel, wherein the second tube extends along the first tube, wherein the first tube comprises a first distal tip and the second tube comprises an angled second distal tip disposed at an oblique angle relative to the longitudinal axis, wherein the angled second distal tip extends distally from the second tube to at least the first distal tip, the method comprising the steps of:
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(a) inserting an endoscope into or through the first channel; (b) inserting the guide device and the endoscope into a nostril of the patient; (c) advancing the endoscope relative to the first channel such that an end of the endoscope traverses the angled second distal tip of the second tube; (d) visualizing an internal space via the endoscope to position the guide device at an intended location in the head of the patient; (e) inserting a working device into the second channel; (f) advancing the working device relative to the second channel such that an end of the working device traverses the angled second distal tip of the second tube and exits from the second channel and enters the internal space; (g) visualizing the working device in the internal space with the endoscope; and (h) introducing at least the angled second distal tip of the second tube behind an uncinate process within the head. - View Dependent Claims (18, 19)
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20. A method for positioning a guide device in a head of a patient, wherein the guide device defines a longitudinal axis and comprises an elongated shaft including a first tube defining a first channel and a second tube defining a second channel, wherein the second tube extends along the first tube channel, wherein the first tube comprises a first distal tip and the second tube comprises an angled second distal tip disposed at an oblique angle relative to the longitudinal axis, wherein the angled second distal tip extends distally from the second tube to at least the first distal tip, wherein the angled second distal tip is configured to provide access to a sinus ostium, the method comprising the steps of:
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(a) inserting an endoscope into or through the first channel; (b) inserting the guide device and the endoscope into a nostril of the patient; (c) advancing the endoscope relative to the first channel such that an end of the endoscope traverses the angled second distal tip of the second tube; (d) visualizing an internal space via the endoscope to position the guide device at or near a sinus ostium; (e) inserting a working device into the second channel; advancing the working device relative to the second channel such that an end of the working device traverses the angled second distal tip of the second tube and exits from the second channel and is within or adjacent to the sinus ostium; (g) visualizing the working device relative to the sinus ostium with the endoscope; and (h) inserting the angled second distal tip of the second tube through the sinus ostium and into the internal space of the patient without first dilating the sinus ostium.
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Specification