Devices and methods for tissue modification
First Claim
1. A method for treating tissue, the method comprising:
- advancing a tissue access instrument into a patient and toward a target tissue from a first location, around at least part of the target tissue, and percutaneously out of the patient from a second location, so that both ends of the tissue access instrument are external to the patient;
positioning a tissue modification device adjacent to the target tissue using the tissue access instrument;
identifying substantially adjacent neural tissue using a neural localization apparatus; and
modifying the target tissue with the tissue modification device.
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Accused Products
Abstract
Methods and apparatus are provided for selective surgical removal of tissue. In one variation, tissue may be ablated, resected, removed, or otherwise remodeled by standard small endoscopic tools delivered into the epidural space through an epidural needle. The sharp tip of the needle in the epidural space, can be converted to a blunt tipped instrument for further safe advancement. The current invention includes specific tools that enable safe tissue modification in the epidural space, including a barrier that separates the area where tissue modification will take place from adjacent vulnerable neural and vascular structures. A nerve stimulator may be provided to reduce a risk of inadvertent neural abrasion.
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Citations
33 Claims
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1. A method for treating tissue, the method comprising:
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advancing a tissue access instrument into a patient and toward a target tissue from a first location, around at least part of the target tissue, and percutaneously out of the patient from a second location, so that both ends of the tissue access instrument are external to the patient; positioning a tissue modification device adjacent to the target tissue using the tissue access instrument; identifying substantially adjacent neural tissue using a neural localization apparatus; and modifying the target tissue with the tissue modification device. - 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 treating tissue in a patient'"'"'s spine, the method comprising:
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advancing a wire into the patient from a first location, through a neural foramen, around the anterior aspect of a single facet joint complex of the spine, and percutaneously out of the patient from a second location; identifying substantially adjacent neural tissue using a neural localization apparatus; connecting a tissue modification device to the wire; positioning the tissue modification device through the neural foramen and around the anterior aspect of the single facet joint complex using the wire; and modifying tissue in the spine by moving the tissue modification device against the tissue. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. A method for treating tissue, the method comprising:
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advancing a wire along a path into a patient and toward a target tissue from a first location, around at least part of the target tissue, and percutaneously out of the patient from a second location, so that both ends of the wire are external to the patient; confirming the path of the wire by identifying substantially adjacent neural tissue along the path using a neural localization apparatus;
pulling a tissue modification device so that it is adjacent to the target tissue using the wire; and modifying the target tissue with the tissue modification device by moving the tissue modification device against the tissue. - View Dependent Claims (25, 26, 27, 28)
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29. A method for treating tissue in a patient'"'"'s spine, the method comprising:
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advancing a tissue access instrument into the patient along a path from a first location, through a neural foramen, around the anterior aspect of a single facet joint complex of the spine, and percutaneously out of the patient from a second location; confirming the path of the tissue access instrument by identifying substantially adjacent neural tissue along the path using a neural localization apparatus; connecting a tissue modification device to the tissue access instrument; positioning the tissue modification device using the tissue access instrument; and modifying tissue in the spine by moving the tissue modification device against the tissue. - View Dependent Claims (30, 31, 32, 33)
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Specification