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US 2021/0228227 A1Published application
Method and catheter for creating an interatrial aperture
AssigneeInterShunt Technologies, Inc.
InventorsGil M. Vardi, Chris Minar
Life of this patent
Estimating the term…
Abstract
A catheter device 10 with a cutting structure or means 16 on the distal portion 14 is disclosed, along with a medical procedure for using the device. The catheter 10 is configured in such a way as to create a permanent interatrial aperture in the heart, including creating a permanent interatrial hole and/or removing tissue.
Claims20
A medical device assembly comprising:
- a sheath, the sheath comprising:
- an elongated sheath shaft, the sheath shaft having a first bend region, a central lumen and a distal end,
- a first steering wire, the steering wire having a first position and a second position, wherein at the first position the first bend region is substantially linear, and wherein at the second position the distal end of the sheath is substantially perpendicular to a longitudinal axis of the sheath,
- a catheter inside the sheath, the catheter comprising:
- a catheter shaft, the catheter shaft having a central lumen,
- a shaped blade, the shaped blade comprising:
- a blade cutting edge that is oriented at a substantially right angle to the longitudinal axis of the sheath when the sheath is oriented substantially perpendicular to the inter atrial septum, and is adapted to cut a 3 mm or larger durable aperture in the interatrial septum,
- a tissue articulator adapted to hold the interatrial septum.
5 more elements
A medical device assembly comprising:
- a sheath, the sheath comprising:
- an elongated sheath shaft, the sheath shaft having a first bend region, a central lumen and a distal end,
- a first steering wire, the steering wire having a first position and a second position, wherein at the first position the first bend region is substantially linear, and wherein at the second position the distal end of the sheath is substantially perpendicular to a longitudinal axis of the sheath,
- a catheter inside the sheath, the catheter comprising:
- a catheter shaft,
- a shaped blade, the shaped blade comprising:
- a blade cutting edge that is oriented at a substantially right angle to the longitudinal axis of the sheath when the sheath is oriented substantially perpendicular to the inter atrial septum, and is adapted to cut a 3 mm or larger durable aperture in the interatrial septum,
- a tissue articulator, the tissue articulator having a first setting and a second setting, the tissue articulator being adapted to hold the interatrial septum against the shaped blade for cutting while in the second setting,
- an actuator connected to the tissue articulator, the actuator having a first position and a second position, wherein when the actuator is in the second position the tissue articulator holds the interatrial septum against the shaped blade.
6 more elements
A method of treating a heart comprising the steps of:
- inserting a catheter into the right atrium of the heart, the catheter comprising:
- a shaft,
- a distal catheter lumen,
- a shaped cutting blade arranged around the distal catheter lumen,
- a tissue articulator, the tissue articulator having a first position and a second position,
- an actuator connected to the tissue articulator
- a steering mechanism
- while the catheter is in the right atrium, actuating the actuator to move the tissue articulator into a second position that holds the tissue against the shaped cutting blade,
- cutting an aperture in the interatrial septum between the right atrium and the left atrium,
- removing a cut tissue from the right atrium.
7 more elements
Dependencies are inferred from the claim text.