COAXIAL TRANSSEPTAL GUIDE-WIRE AND NEEDLE ASSEMBLY
First Claim
Patent Images
1. A coaxial transseptal device comprising:
- a piercing device comprising a shaft having a proximal end and a distal end, wherein a sharpened portion is included on the distal end; and
a coaxial guide-wire configured to receive the piercing device and move relative thereto, the coaxial guide-wire having a proximal end and a distal end, wherein a flexibility of the coaxial guide-wire increases distally.
0 Assignments
0 Petitions
Accused Products
Abstract
A coaxial transseptal device and methods of piercing a tissue within the heart. The coaxial transseptal device includes a piercing device having a shaft with a distal sharpened portion. The coaxial transseptal device also includes a coaxial guide-wire configured to receive the piercing device and move relative thereto. The flexibility of the coaxial guide-wire increases from the proximal end to the distal end.
-
Citations
40 Claims
-
1. A coaxial transseptal device comprising:
-
a piercing device comprising a shaft having a proximal end and a distal end, wherein a sharpened portion is included on the distal end; and a coaxial guide-wire configured to receive the piercing device and move relative thereto, the coaxial guide-wire having a proximal end and a distal end, wherein a flexibility of the coaxial guide-wire increases distally. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A guide-wire comprising:
-
a tube having proximal and distal ends with a lumen extending therebetween, wherein the flexibility of the tube increases distally; and a coil surrounding at least the distal end of the tube. - View Dependent Claims (16, 17, 18, 19, 20, 21)
-
-
22. A piercing device comprising:
-
a shaft having a proximal end and a distal end; and a sharpened portion on the distal end of the shaft, wherein the flexibility of the shaft increases distally. - View Dependent Claims (23, 24, 25, 26)
-
-
27. A method of piercing a tissue within the heart with a coaxial transseptal device comprising a piercing device and a coaxial guide-wire, the piercing device comprising a shaft having a proximal end, a distal end, and having a sharpened portion on the distal end, the coaxial guide-wire having a proximal end and a distal end, wherein a flexibility of the coaxial guide-wire increases distally, and the coaxial guide-wire is configured to receive the piercing device and move relative thereto, the method comprising:
-
introducing the distal end of the coaxial guide-wire into a superficial blood vessel; percutaneously directing the distal end of the coaxial guide-wire from the superficial blood vessel to the tissue in a first chamber of the heart; advancing the sharpened portion of the piercing device distally beyond the distal end of the coaxial guide-wire, thereby puncturing the tissue and entering a second chamber of the heart; and advancing the distal end of the coaxial guide-wire over the piercing device and into the second chamber, thereby dilating the puncture in the tissue. - View Dependent Claims (28, 29, 30, 31)
-
-
32. A method of puncturing a tissue within the heart with a coaxial transseptal device comprising a piercing device and a coaxial guide-wire, the piercing device comprising a shaft having a proximal end, a distal end, and having a sharpened portion on the distal end, the coaxial guide-wire having a proximal end and a distal end, wherein a flexibility of the coaxial guide-wire increases distally and the coaxial guide-wire is configured to receive the piercing device and move relative thereto, the method comprising:
-
securing the sharpened portion of the piercing device within the coaxial guide-wire; introducing the distal end of the coaxial guide-wire into a superficial blood vessel; percutaneously directing the distal end of the coaxial guide-wire from the superficial blood vessel to the tissue in a first chamber of the heart; releasing the sharpened portion such that the shaft moves relative to the coaxial guide-wire; advancing the sharpened portion of the piercing device distally beyond the distal end of the coaxial guide-wire, thereby puncturing the tissue and entering a second chamber of the heart; advancing the distal end of the coaxial guide-wire across the intra-atrial septum and into the second chamber, thereby dilating the puncture in the tissue; and retracting the piercing device from the coaxial guide-wire. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40)
-
Specification