A vascular access device with arteriovenous fistula support includes a top portion and a bottom portion. The top portion has a partial artery channel, a partial vessel channel, and a partial arteriovenous joint between the partial artery channel and the partial vessel channel, where the partial vessel channel has a vascular access aperture for exposing the vessel. The bottom portion has a corresponding partial artery channel, partial vessel channel, and partial arteriovenous joint between the partial artery channel and the partial vessel channel. When the top portion is coupled to the bottom portion, the two partial artery channels couple together to form an artery channel, the two partial vessel channels couple together to form a vessel channel, and the two partial arteriovenous joints couple together to form an arteriovenous joint for an arteriovenous fistula.

The disclosure provides various embodiments of prostheses and delivery systems to permit an interventional cardiologist to create shunts between various blood vessels. Moreover, the disclosed shunts can be used to shunt between various hollow organs, as set forth in the present disclosure.

A catheter and tissue cutting system percutaneously permits the creation of an anastomosis between a first and second anatomical structure, such as a vein and an artery. The system comprises a catheter having a main body with a lumen and tapered distal tip, configured to be moved distally into the first anatomical structure over a primary guidewire. A cutting electrode is nested in the main body, with a lumen which tracks over a secondary guidewire, and is insertable into the secondary anatomical structure. An energy supply is operative to energize the cutting electrode in order to cut a tissue wall defining the first anatomical structure.

The present technology relates to power management for interatrial shunting systems. In some embodiments, the present technology includes a system for shunting blood between a left atrium and a right atrium of a patient. The system can include a shunting element and a plurality of active electronic components operably coupled to the shunting element. At least some of the active electronic components have different power consumption characteristics. The system also includes a plurality of energy storage components, with some of the energy storage components have different characteristics. During operation, the system is configured to receive a signal indicating that an active electronic component is to be operated, and select an energy storage component associated with power output characteristics capable of accommodating the power consumption characteristics of the active electronic component. The system is further configured to instruct the selected energy storage component to power operation of the active electronic component.

A system and a method are disclosed for forming an anastomosis between a first layer of tissue and a second layer of tissue of a patient's body. The system includes a first anastomosis device component and a second anastomosis device component configured to interact with the first anastomosis device component. The first anastomosis device component is configured to be delivered to a first lumen inside the patient's body. The second anastomosis device component is configured to be delivered to a second lumen inside the patient's body. The second anastomosis device includes one or more sensors configured to capture sensor data for determining an alignment of the second anastomosis device component relative to the first anastomosis device component, or for characterizing the position or orientation of the second anastomosis device component in three-dimensional space.

An implantable medical device comprising a first frame component. The first frame component including a first set of elongate elements configured to conform to an anatomy of a patient. The implantable medical device also comprising a second frame component including a second set of elongate elements configured to conform to an anatomy of a patient. The first frame component and the second frame component being discrete and separate from one another. The implantable medical device also comprising a conduit portion arranged between the first frame component and the second frame component. The conduit portion including a membrane connecting the first frame component and the second frame component.

Various systems, devices, and methods for endovascular implants and placement thereof are disclosed. The implants include a proximal implant segment, a distal implant segment, connector struts connecting the proximal implant segment to the distal implant segment, and a side opening between the proximal implant segment and the distal implant segment. The implants can be used to create an arteriovenous fistula or connect one vessel of the body to another by placement of the proximal implant segment and the distal implant segment within the vessels to be connected. The implants can include one or more anchors for securing the implant in place with respect to the vessels of the body it is connecting. The implants can also include a continuous strut or ring at a distal edge of the proximal implant segment. Also disclosed are methods for percutaneous placement of the implants, and a device for percutaneous delivery.

An implantable medical device comprising a first frame component. The first frame component including a first set of elongate elements configured to conform to an anatomy of a patient. The implantable medical device also comprising a second frame component including a second set of elongate elements configured to conform to an anatomy of a patient. The first frame component and the second frame component being discrete and separate from one another. The implantable medical device also comprising a conduit portion arranged between the first frame component and the second frame component. The conduit portion including a membrane connecting the first frame component and the second frame component.

A method of creating an anastomosis includes steps of advancing a distal tip of a catheter device through a first blood vessel into a second blood vessel, while simultaneously advancing a proximal base of the device into the first vessel, contacting a wall of the first vessel with a distal blunt surface on the proximal base. A further step is to retract the distal tip so that a proximal blunt base of the distal tip contacts a wall of the second vessel, thereby capturing the two vessel walls between the blunt surfaces of the proximal base and the distal tip. A controlled pressure is applied between the two blunt surfaces to compress and stabilize the captured tissue and approximate the vessel walls. A clip is deployed through the captured tissue to hold the tissue in place during the anastomosis procedure. The anastomosis is created by applying cutting energy to the captured tissue.

Systems and methods for forming an anastomosis between two adjacent walls of a digestive tract are provided. The system can include first and second magnetic implants configured to magnetically couple through two adjacent walls of the digestive tract to compress a portion of the two adjacent walls therebetween and form a necrotic area that becomes surrounded by a scarred edge following a healing time period. The magnetic implant can include a magnetic member and a non-magnetic member. The system can include a retention member extending outwardly from a corresponding one of the first and second magnetic implants, the retention member being configured to retain the magnetic implants in position and prevent passage thereof through the necrotic area during the healing time period, and to maintain an engagement between the magnetic member and the non-magnetic member during the healing time period and enable disengagement thereof following the healing time period.