DEVICES, SYSTEMS, AND METHODS FOR TREATING HEART FAILURE
First Claim
1. A transseptal tissue coring device comprising a cutting edge and a supporting surface, each of which comprises a delivery profile and a deployed profile;
- wherein at least one dimension of the cutting edge in the deployed profile is up to 400% of that in the delivery profile; and
the cutting edge in the deployed profile is located proximal to the supporting surface in the deployed profile.
2 Assignments
0 Petitions
Accused Products
Abstract
The present teachings provide devices and methods for percutaneously removing internal tissue. Specifically, one aspect of the present teachings provides a tissue incising element with a sharp cutting edge and a longitudinal lumen and a tissue stabilizer slidably disposed within the longitudinal lumen of the tissue incising element. The tissue incising element has a deployed configuration during tissue cutting and a small collapsed configuration during the percutaneous delivery and removal. The tissue stabilizer includes a tissue supporting/gripping element configured to support tissue during incising and capture the removed tissue.
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Citations
26 Claims
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1. A transseptal tissue coring device comprising a cutting edge and a supporting surface, each of which comprises a delivery profile and a deployed profile;
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wherein at least one dimension of the cutting edge in the deployed profile is up to 400% of that in the delivery profile; and the cutting edge in the deployed profile is located proximal to the supporting surface in the deployed profile. - View Dependent Claims (2, 3, 4, 6, 10, 11, 12, 13, 14, 15)
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5. (canceled)
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7-9. -9. (canceled)
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16. (canceled)
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17. A transseptal tissue coring device comprising:
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a tissue incising element comprising a proximal end, a distal end, a longitudinal lumen extending from the proximal end to the distal end, and a sharp edge at the distal end, and a tissue stabilizer comprising an elongated body, a distal portion, and a plurality of tissue supporting struts at the distal portion of the tissue stabilizer. - View Dependent Claims (18, 19, 20, 21, 22, 25)
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23. (canceled)
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24. A transseptal tissue coring device comprising:
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a tissue incising element comprising a proximal portion, a distal portion, a longitudinal lumen extending from the proximal end to distal portion, and a sharp edge at the distal end, and a tissue stabilizer comprising an elongated body, a distal portion, and a plurality of tissue supporting struts at the distal portion of the tissue stabilizer, wherein the tissue supporting struts are formed by a plurality of slits along the elongated body of the tissue stabilizer; wherein the tissue stabilizer is slidably disposed within the longitudinal lumen of the tissue incising element, the tissue supporting struts are lengthened along the elongated body of the tissue stabilizer when the distal portion of the tissue stabilizer is constrained within the longitudinal lumen of the tissue incising element, and the tissue supporting struts are shortened and expand radially forming a tissue supporting surface when the distal portion of the tissue stabilizer is exposed outside of the longitudinal lumen of the tissue incising element.
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26-28. -28. (canceled)
Specification