Devices, systems, and methods for transseptal puncture
AssigneeLaminar, Inc.
InventorsRandall T. Lashinski, Joshua J. Dwork, Michael James Lee
Life of this patent
Estimating the term…
Abstract
Various devices, apparatuses, and methods for transseptal puncture and crossing are disclosed herein. A transseptal puncture and crossing device can include novel puncture member having a crossing coil mated to a body portion to be able to both cross a tissue and allow a wire or guard be inserted through the puncture member. Though not required, the puncture member can have one or more of novel features, including a tapered coil portion, a transition cutter, a gripper coil portion, an atraumatic guard, and a shaped cutting wire. Methods for transseptal punctures and crossing include adding rotation, oscillation and/or ultrasound to a transseptal puncture device.
Claims27
A transseptal puncture device for creating a hole in a septum of a patient, comprising:
- (a) an elongate body portion;
- (b) a coiled portion distal to the body portion, the coiled portion having a distal end and a proximal end, the proximal end being closer to the body portion;
- (c) a transition portion between the body portion and the coiled portion, wherein the transition portion comprises a sharpened outer edge;
- and
- (d) a longitudinally extending lumen extending axially through an entire length of the elongate body portion and the coiled portion;
- wherein:
- (1) the distal end of the coiled portion is sharp;
- and
- (2) the device is configured to create an opening in the septum of the patient by advancing the distal end of the coiled portion into contact with the septum and rotating the device in a first direction.
A transseptal puncture device for creating a hole in a septum of a patient, comprising:
- (a) an elongate body portion;
- (b) a coiled portion distal to the body portion, the coiled portion having a distal end and a proximal end, the proximal end being closer to the body portion, wherein the coiled portion comprises a helical wall having a thickness in an axial direction of the transseptal puncture device that increases along a length of the coiled portion from the distal end of the coiled portion to the proximal end of the coiled portion so as to increase a size of an opening in the septum as the coiled portion of the device is advanced through the opening in the septum;
- and
- (c) a longitudinally extending lumen extending axially through an entire length of the elongate body portion and the coiled portion;
- wherein:
- (1) the distal end of the coiled portion is sharp;
- and
- (2) the device is configured to create the opening in the septum of the patient by advancing the distal end of the coiled portion into contact with the septum and rotating the device in a first direction.
A transseptal puncture device for creating a hole in a septum of a patient, comprising:
- (a) an elongate body portion;
- (b) a coiled portion distal to the body portion, the coiled portion having a distal end and a proximal end, the proximal end being closer to the body portion;
- (c) a distal coil guard configured to retractably extend out from the distal end of the coiled portion, wherein a distal end of the distal coil guard is configured to be blunt or atraumatic;
- and
- (d) a longitudinally extending lumen extending axially through an entire length of the elongate body portion and the coiled portion;
- wherein:
- (1) the distal end of the coiled portion is sharp;
- and
- (2) the device is configured to create an opening in the septum of the patient by advancing the distal end of the coiled portion into contact with the septum and rotating the device in a first direction.
Dependencies are inferred from the claim text.