SWING PRISM ENDOSCOPE
First Claim
1. A method for advancing a therapeutic device into or through an opening or passageway into a paranasal sinus, the method comprising:
- introducing a variable direction of view endoscope into a nasal cavity with the endoscope adjusted to a first direction of view between about 0 degrees and about 15 degrees relative to a longitudinal axis of the endoscope;
introducing a therapeutic device into the nasal cavity;
adjusting the endoscope to a second direction of view directed toward the sinus opening or passageway;
advancing the therapeutic device into or through the sinus opening; and
viewing at least one of the sinus opening or passageway or the therapeutic device using the endoscope adjusted to the second direction of view.
1 Assignment
0 Petitions
Accused Products
Abstract
A variable direction of view endoscope is positionable at desired locations within the ear, nose, throat, paranasal sinuses or cranium to accomplish visualization. A method of use includes introducing the variable direction of view endoscope into a nasal cavity with the endoscope adjusted to a first direction of view between about 0 degrees and about 15 degrees relative to a longitudinal axis of the endoscope. A therapeutic device is introduced into the nasal cavity and the endoscope is adjusted to a second direction of view directed toward the sinus opening or passageway. The method also includes advancing the therapeutic device into or through the sinus opening and viewing at least one of the sinus opening or passageway or the therapeutic device using the endoscope adjusted to the second direction of view.
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Citations
42 Claims
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1. A method for advancing a therapeutic device into or through an opening or passageway into a paranasal sinus, the method comprising:
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introducing a variable direction of view endoscope into a nasal cavity with the endoscope adjusted to a first direction of view between about 0 degrees and about 15 degrees relative to a longitudinal axis of the endoscope; introducing a therapeutic device into the nasal cavity; adjusting the endoscope to a second direction of view directed toward the sinus opening or passageway; advancing the therapeutic device into or through the sinus opening; and viewing at least one of the sinus opening or passageway or the therapeutic device using the endoscope adjusted to the second direction of view. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for advancing a flexible device into an opening or passageway into a paranasal sinus, the method comprising:
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introducing a variable direction of view endoscope into a nasal cavity with the endoscope adjusted to a first direction of view between about 0 degrees and about 15 degrees relative to a longitudinal axis of the endoscope; introducing a guide catheter into the nasal cavity to position a distal tip of the catheter within or near a paranasal sinus opening or passageway; adjusting the endoscope to a second direction of view directed toward the sinus opening or passageway; advancing a flexible device through a lumen of the guide catheter and into or through the sinus opening; and viewing at least one of the sinus opening or passageway or the flexible device using the endoscope adjusted to the second direction of view. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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22. A method for viewing anatomy in a head of a human or animal subject, the method comprising:
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introducing a variable degree of view endoscope into the subject'"'"'s head with the endoscope adjusted to a first degree of view; viewing anatomy in the head using the endoscope with the first degree of view; rotating a first portion of a handle of the endoscope about a longitudinal axis of the endoscope to adjust the endoscope to a second degree of view, wherein the first portion of the handle rotates relative to a shaft of the endoscope; and viewing anatomy in the head using the endoscope with the second degree of view. - View Dependent Claims (23, 24, 25, 26, 27)
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28. A variable direction of view endoscope configured to pass into a head of a human or animal subject, the endoscope comprising:
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an elongate shaft having a proximal end, a distal end, and an outer diameter of no more than approximately 5 mm; a viewing window disposed along the shaft at or near its distal end; a pivotable prism disposed in the shaft near the distal end to change a direction of view of the endoscope; and a self-focusing lens disposed in the shaft, configured to automatically focus the view acquired through the viewing window as the prism pivots. - View Dependent Claims (29, 30, 31)
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32. A variable direction of view endoscope configured to pass into a head of a human or animal subject, the endoscope comprising:
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an elongate shaft having a proximal end, a distal end, and an outer diameter of no more than approximately 5 mm; a viewing window disposed along the shaft at or near its distal end; a pivotable prism disposed in the shaft near the distal end to change a direction of view of the endoscope; and a handle coupled with the proximal end of the elongate shaft, wherein the handle comprises a first rotating dial for adjusting the viewing angle of the endoscope by pivoting the prism, wherein the first rotating dial rotates about a longitudinal axis of the shaft. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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Specification