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US 2019/0239924 A1Published application
Transseptal needle
AssigneeBaylis Medical Company Inc.
InventorsJohn Paul Urbanski, Gareth Davies, Mahmood Mirza, Bogdan Beca
Life of this patent
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Abstract
Embodiments of medical devices and methods are disclosed. The medical devices typically comprises a needle with a rigid proximal shaft, a flexible distal shaft and a distal tip. The distal tip includes an electrode for delivering energy to puncture a tissue. In some embodiments, the distal shaft comprises a superelastic material. In other embodiments, the distal shaft is comprised of both a superelastic material and a non-superelastic material.
Claims21
-26. (canceled)
A needle for puncturing tissue comprising:
- a rigid proximal shaft;
- a flexible distal shaft joined to the proximal shaft;
- and
- a distal tip which includes an electrode for delivering energy to puncture a tissue.
1 more element
Medical apparatus comprising:
- a sheath comprising a sheath lumen;
- a dilator configured to fit in the sheath lumen, the dilator comprising a dilator lumen;
- and
- a needle for puncturing tissue configured to fit in the dilator lumen, the needle comprising a rigid proximal shaft, a flexible distal shaft joined to the proximal shaft, and a distal tip having an electrode for delivering energy to a tissue;
- wherein the flexible distal shaft is sufficiently flexible to conform to a shape of the dilator and sheath assembly.
2 more elements
A method for puncturing tissue, comprising
- introducing a sheath into a vascular system;
- introducing a dilator into the sheath and advancing to position the dilator against a tissue;
- introducing a needle into the proximal region of the dilator, the needle comprising a rigid proximal shaft, a flexible distal shaft joined to the proximal shaft, and a rigid distal tip which includes an electrode for delivering energy to a tissue;
- advancing the needle through the dilator to the tissue wherein the flexible distal shaft is sufficiently flexible to conform to a shape of the dilator;
- and
- delivering energy from an energy source through the electrode of the needle whereby the energy creates a puncture.
3 more elements
Dependencies are inferred from the claim text.