Tissue modification devices and methods
First Claim
1. A bimanually controlled tissue modification device having a tissue modification region for cutting tissue in a patient, the tissue modification region comprising:
- a pair of flexible elongate cutting members extending along the length of the tissue modification region, wherein each elongate cutting member has a thickness and each elongate cutting member is configured to cut a discrete trough into tissue to a depth that is greater than the thickness of the cutting member,wherein at least one cutting member comprises a cutting wire.
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Accused Products
Abstract
Described herein are devices, systems and methods for cutting tissue in a patient. In some embodiments, a tissue modification region of a device includes a pair of flexible elongate cutting members extending along the length of the tissue modification region. Each elongate cutting member may be configured to cut a discrete trough into tissue to a depth that is greater than the thickness of the cutting member. In some embodiments, the device includes a spacer. The spacer may be sized and configured to operate in one of two modes. A first mode, in which the spacer is coupled to the cutting members such that it holds a portion of each of the two cutting members a distance from one another, and a second mode, in which at least a portion of the spacer is moved away from a cutting member to allow the cutting members to cut further into tissue.
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Citations
19 Claims
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1. A bimanually controlled tissue modification device having a tissue modification region for cutting tissue in a patient, the tissue modification region comprising:
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a pair of flexible elongate cutting members extending along the length of the tissue modification region, wherein each elongate cutting member has a thickness and each elongate cutting member is configured to cut a discrete trough into tissue to a depth that is greater than the thickness of the cutting member, wherein at least one cutting member comprises a cutting wire. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An elongate, bimanually controlled tissue modification device for cutting tissue in a patient, the device comprising:
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a pair of flexible, elongate cutting members extending along an elongate length of the device; and a spacer, wherein the spacer is sized and configured to operate in one of two modes; a first mode, wherein the spacer is coupled to the cutting members such that it holds a portion of each of the two cutting members a distance from one another, and a second mode, wherein at least a portion of the spacer is moved away from a cutting member to allow the cutting members to cut further into tissue. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of modifying tissue, the method comprising:
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passing an elongate, flexible tissue-modification device at least partially around a target tissue, moving a tissue-modification region of the device against the target tissue by pulling the tissue-modification device from at least one end of the device; and cutting two discrete elongate troughs into the tissue with a pair of flexible elongate cutting members extending along the elongate length of the tissue modification region, wherein the elongate cutting members have a thickness and each of the elongate troughs are cut to a depth that is greater than the thickness of the cutting members.
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Specification