The present disclosure is related to medical devices, stents, drainage devices, and the like, which feature a doubled back design. Various embodiments described herein have a portion with overlapping layers, at least one of which may comprise a cover.

Tubes (e.g., catheters, endotracheal or chest tubes and bypass grafts) are provided, comprising a catheter and a plurality of sensors.

An endograft (102) includes a stent structure. An optical shape sensing (OSS) system (104) is associated with the endograft and is configured to measure shape, position and/or orientation of the stent structure. The OSS system (104) is connected to the stent structure and removable in a plurality of ways. Methods for deployment and removal of the OSS system are also provided.

A transcatheter valve prosthesis includes a stent and a prosthetic valve. The prosthetic valve is configured to substantially block blood flow in one direction to regulate blood flow through a central lumen of the stent. The stent includes an inflow portion, an outflow portion, and a transition portion extending between the inflow portion and the outflow portion. The transition portion includes a plurality of axial frame members extending between the inflow portion and the outflow portion. Each axial frame member extends in an axial direction from a crown of the inflow portion to at least a crown of the outflow portion. Each axial frame member has a first end adjacent to the crown of the inflow portion, the first end having a reduced width relative to a width of a length of the axial frame member between the first end and the crown of the outflow portion.

Devices, systems, and methods related to heart valve prostheses. The prosthesis includes an anchor and a frame. The anchor is shaped to encircle chordae and/or leaflets of a native heart valve. The frame is configured to sit within the anchor and the native valve such that the anchor encircles and anchors the frame in place. At least a portion of the anchor is configured to be visible using surgical visualization techniques during delivery of the prosthesis within the heart. The anchor can include an echogenic portion configured to enable viewing of the echogenic portion with ultrasound during delivery of the prosthesis.

Breast reconstruction and/or mastectomy may be performed to treat or prevent breast cancer or for a variety of other purposes. These procedures can result in disruption of the innervation of the breast, leading to loss of sensation. This loss of sensation can lead to diminishment of sexual function, sexual dysfunction, or other undesired effects. To restore the lost sensory function, an implanted system is provided. The system includes a sensor configured to detect one or more of pressure, stain, or vibration. The detected input is used to determine a stimulus, and the stimulus is provided to one or more of the intercostal nerves to restore sensation.

A medical device includes a polymer stent (or scaffold) crimped to a catheter balloon. The stent, after being expanded from a crimped state by the balloon, provides a crush recovery of about 90% of its expanded diameter after being pinched or crushed by an amount equal to about 50% of the expanded diameter. The stent has a pattern including a W-shaped or W-V shaped closed cell and links connecting the closed cells.

A delivery system for delivering a prosthesis includes a spindle for securing a stent to a shaft. The spindle includes at least one pocket for receiving a paddle of the stent. The delivery system also includes at least one sensor positioned within the at least one pocket and configured to detect a presence of the paddle relative to the at least one pocket.

The present invention relates to systems, assemblies and methods for estimating prosthetic valve expansion diameter, and in particular, for system and assemblies equipped with at least one sound or vibration sensor configured to provide real-time estimate of prosthetic valve expansion diameter.

The present invention relates to miniature biosensor technology which can be directly embedded into medical device technology to create a new category of multifunctional smart medical devices. The resulting data from these smart medical devices results in wireless communication networks and standardized referenceable databases, which are used in the creation of best practice guidelines, clinical decision support tools, personalized medicine applications, and comparative technology assessment.