11 results about "Septal wall" patented technology

The present technology is generally directed to interatrial shunting systems and associated devices and methods. For example, a system configured in accordance with embodiments of the present technology can include a shunting element implantable into a patient at or adjacent a septal wall. The shunting element can have a lumen that fluidly connects a left atrium and a right atrium of the patient to facilitate blood flow therebetween when the shunting element is implanted. In some embodiments, the system further includes a flow control element to selectively control blood flow between the left atrium and the right atrium.

A method of sensing a physiological parameter involves advancing a delivery catheter to a right atrium of a heart of a patient via a transcatheter access path, advancing the delivery catheter through an atrial septal wall into a left atrium of the heart, deploying a distal anchor of a sensor implant device from the delivery catheter, anchoring the distal anchor of the sensor implant device to a first pulmonary vein, withdrawing the delivery catheter from the first pulmonary vein, thereby exposing at least a portion of a sensor module of the sensor implant device in the left atrium, deploying a proximal anchor of the sensor implant device from the delivery system, anchoring the proximal anchor of the sensor implant device to a second pulmonary vein, and withdrawing the delivery catheter from the heart.

An implantable lead system may include an adjustable lead assembly. The lead assembly may include a fixation member and an implantable lead slidably coupled to and rotatable relative to the fixation member. The implantable lead system may include a telescoping delivery system. The delivery system may include an outer catheter and an inner catheter slidably coupled to and rotatable relative to the outer catheter. The lead assembly may be implanted in a cardiac septal wall through the delivery assembly.

The present technology is directed to adjustable interatrial shunting systems that selectively control blood flow between the left atrium and the right atrium of a patient. The adjustable interatrial devices include a shunting element having an outer surface configured to engage native tissue and an inner surface defining a lumen that enables blood to flow from the left atrium to the right atrium when the system is deployed across the septal wall. The systems can include an actuation assembly for selectively adjusting a geometry of the lumen and / or a geometry of a lumen orifice to control the flow of blood through the lumen.

The present invention relates to medical devices. More specifically, the present invention describes a vascular device that allows large bore transseptal access with subsequent re-entry into the atrium by pre-placing a closure / tissue access suture prior to performing an atrial septostomy. Generally, the device can include a delivery catheter for puncturing and cutting the atrial septum. An anchor of the delivery catheter can secure the suture in the atrium to the septal wall, e.g., the left atrium. The incision can be formed by an expandable cutting tool that can use mechanical or radiofrequency (RF) energy without disturbing the suture. After the cutting tool forms the incision, a therapeutic device can be advanced through the tissue plane. The incision can be closed with the previously placed suture.

Closure devices that selectively control blood flow between the right atrium and the left atrium of a heart of a patient. The control of blood flow can be based on detected values from a pressure sensor. The closure devices can include a body configured to engage native tissue when the device is deployed across the septal wall. In a first state at least a portion of (an inner surface of) a lumen is closed, preventing blood flow through the closure device. In a second state, the lumen is open to enable blood flow from the left atrium to the right atrium. A closure element can be selectively adjusted to control the flow of blood through the lumen. A volume of an expandable chamber can be increased or decreased to place the closure device into the first state or the second state.

The present disclosure includes devices and techniques for threading one or more catheters to the apex or base of the right ventricle by transfemoral vein access to the right ventricle. The catheter can be passed through to turn upward, directed towards the mitral valve, by puncturing the ventricular septum into the left ventricle through the ventricular side or right side of the heart. From this entry point in the left ventricle, flail mitral valve leaflets can be sutured and tethered, pulled back into place, and re-attached with grounding anchors in the right ventricle, or embedded in the septal wall. The ventricular septal crossing technique may include passing a coaxial conduit through a first access conduit, where the first access conduit may act as a guide to direct an inner or second coaxial conduit toward a flail mitral valve leaflet.

An example medical device includes an elongated support member defining a longitudinal axis and a plurality of expandable members at a distal portion of the elongated support member positioned circumferentially about the elongated support member. At least a portion of each of the expandable members is configured to radially extend from the elongated support member. Each expandable member of the plurality of expandable members comprises a respective cutting element, each cutting element comprising a cutting surface facing towards the longitudinal axis and configured to initiate a respective cut of septal wall tissue at a first end of the respective cut and to cut the septal wall tissue from the first end of the cut to a second end of the respective cut to form a multi-cuspid valvular shunt. The second end of the cut comprises an intersection of the plurality of cuts of the plurality of cutting elements.

The present technology relates to intracardiac pressure monitoring devices, and associated systems and methods. In some embodiments, the present technology includes a device for monitoring pressure within a patient's heart. The device can include a pressure sensor configured to reside within a first chamber of a heart of a patient, and a pressure transmission element configured to extend from the first chamber through a septal wall to a second chamber of the heart of the patient. When the device is implanted in the patient's heart, the pressure transmission element is configured to transmit pressure from the second chamber to the pressure sensor residing within the first chamber.

Adjustable shunting systems providing angled flow between two body regions, such as the right atrium and the left atrium, and associated devices and methods are disclosed herein. In some embodiments, the adjustable shunting system includes an anchor structure configured to stabilize the shunting system at a target anatomical structure between the two body regions, such as a septal wall, and an actuator coupled to the anchor structure. The actuator can define a lumen extending between the two body regions at a non-orthogonal angle relative to an axis normal to a plane defined by the anchor structure and / or the anatomical part. The actuator can be selectively controllable to adjust a size of the lumen.

An implantable lead system may include an adjustable lead assembly. The lead assembly may include a fixation member and an implantable lead slidably coupled to and rotatable relative to the fixation member. The implantable lead system may include a telescoping delivery system. The delivery system may include an outer catheter and an inner catheter slidably coupled to and rotatable relative to the outer catheter. The lead assembly may be implanted in a cardiac septal wall through the delivery assembly.