Removable navigation system and method for a medical device
First Claim
Patent Images
1. A medical navigation device, comprising:
- a sheath comprising a material, the sheath configured to cover at least a portion of a medical device configured for navigation in a body lumen of a patient, wherein the sheath comprises a first opening, a second opening, and a lumen therebetween, wherein the first opening, the second opening, and the lumen are each sized and configured such that a portion of the medical device may removably pass therethrough; and
a positioning sensor comprising an electromagnetic coil affixed within the material of the sheath so that the sheath and the positioning sensor are removable from the medical device and from the body lumen while the medical device remains in the body lumen, wherein the electromagnetic coil is sized and configured such that a portion of the medical device may removably pass therethrough, and wherein the electromagnetic coil is electrically coupled to conductors extending longitudinally along the sheath from the electromagnetic coil to a sheath proximal end located outside of the body lumen and patient while the medical device remains in the body lumen so as to enable connection of the conductors to a navigation and tracking system, andwherein the electromagnetic coil is sized and configured to produce a signal that can be interpreted by a signal processing unit and such that a portion of the medical device may pass therethrough.
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Abstract
A removable navigation system for a medical device configured for insertion within a lumen in a body is provided. The removable navigation system includes a sheath operatively configured to cover at least a portion of the medical device, a positioning sensor affixed to the sheath and a deformable fixation element disposed between the sheath and the medical device. The deformable fixation element is operatively deformed to temporarily fix a position of the medical device relative to the sheath and positioning sensor.
42 Citations
27 Claims
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1. A medical navigation device, comprising:
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a sheath comprising a material, the sheath configured to cover at least a portion of a medical device configured for navigation in a body lumen of a patient, wherein the sheath comprises a first opening, a second opening, and a lumen therebetween, wherein the first opening, the second opening, and the lumen are each sized and configured such that a portion of the medical device may removably pass therethrough; and a positioning sensor comprising an electromagnetic coil affixed within the material of the sheath so that the sheath and the positioning sensor are removable from the medical device and from the body lumen while the medical device remains in the body lumen, wherein the electromagnetic coil is sized and configured such that a portion of the medical device may removably pass therethrough, and wherein the electromagnetic coil is electrically coupled to conductors extending longitudinally along the sheath from the electromagnetic coil to a sheath proximal end located outside of the body lumen and patient while the medical device remains in the body lumen so as to enable connection of the conductors to a navigation and tracking system, and wherein the electromagnetic coil is sized and configured to produce a signal that can be interpreted by a signal processing unit and such that a portion of the medical device may pass therethrough. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A navigation method for a medical device within a body, the navigation method comprising the steps of:
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inserting the medical device into a sheath comprising a material and having a positioning sensor affixed within the material of the sheath so that the sheath and the positioning sensor are removable from the medical device and the body while the medical device remains within the body, the positioning sensor comprising an electromagnetic coil located within the sheath and sized and configured such that a portion of the medical device may removably pass through the electromagnetic coil, and wherein the electromagnetic coil is electrically coupled to conductors extending longitudinally along the sheath from the electromagnetic coil to a sheath proximal end located outside of the body; deforming a deformable fixation element disposed between the sheath and the medical device to temporarily fix a position of the medical device relative to the sheath and positioning sensor; guiding the medical device and sheath to a location within a lumen of a body; and monitoring a position of the positioning sensor within the body to thereby monitor a position of the medical device during navigation of the medical device within the body. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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Specification