A bile duct stent and a method of manufacturing the same are disclosed. The bile duct stent having a backflow preventing means according to an embodiment of the present invention includes: a cylindrical body having a mesh structure formed by zigzagging metal wires of a shape memory alloy on a plurality of pins each disposed in a circumferential direction X and a longitudinal direction Y of a cylindrical jig; a film portion coated on cells of the metal wires of the mesh structure; and a backflow-preventing pattern film in which a hole is formed in the film portion of each cell formed at an outlet end of the cylindrical body and threads (Lasso) fixed by zigzagging to the cells of the metal wires in the circumferential direction by passing through any one hole (h) cross the outlet end one time or more to form a network structure.

A valve loading system that uses a valve loader to transfer a valve or other medical device from a storage cartridge into a deployment catheter. The valve or other medical device can be implanted or positioned within a patient using the catheter after the valve or other medical device has been compressed and loaded into the catheter using the valve loader. The process then can be repeated by using the valve loading system to load or introduce another valve or other medical device into the catheter. The valve loading system includes a loading pin sized to limit contact with the medical device during a loading procedure.

The present technology relates to interatrial shunting systems and methods. In some embodiments, the present technology includes interatrial shunting systems that include a shunting element having a lumen extending therethrough that is configured to fluidly couple the left atrium and the right atrium when the shunting element is implanted in a patient. The system can also include an energy receiving component for receiving energy from an energy source positioned external to the body, an energy storage component for storing the received energy, and/or a flow control mechanism for adjusting a geometry of the lumen.

This tubular indwelling device 1, which is placed in a living body lumen (bile duct) to define a tubular flow path, comprises: a tubular body part 2; and a valve part 3 that is provided on a downstream end part 2a of the tubular body part 2 in a flow direction of a fluid (bile) flowing through the living body lumen and has an outflow port 23 from which the fluid flows out. The valve part 3 further comprises, for example, a “V”-shaped guide part 30 that guides the insertion of a jig 200 (not illustrated) into the outflow port 23.

A connector assembly for an arteriovenous (AV) graft according to an example of the present disclosure includes, among other possible things, a connector having a first segment arranged a long a first axis having first and second opposing ports and a second segment arranged along a second axis having a third port, each of the first and second ports configured to be joined to first and second portions of an artery or a vein, respectively. At least one ring is configured to connect the first and second ports to the first and second portions of the artery or the vein by applying force about substantially the circumferential extent of the first segment of the connector and the first and second portions of the artery or the vein to join the first and second ports to the first and second portions of the artery or the vein, respectively. An AV graft assembly and method of implanting a connector for an AV graft are also disclosed.

A medical implant includes a primary tubular member having a first end and a second end and defining a primary longitudinal axis and a primary lumen. The primary tubular member is disposed in an arterial-venous connection. The medical implant also includes a baffle disposed transversely to the primary longitudinal axis within the primary lumen. The baffle defines at least one aperture therethrough.

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. Ina 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.

A tubular indwelling device 1 is placed inside a living body lumen and defines a tubular flow path, the tubular indwelling device comprising: a skeleton part 10; a membrane part 20; and a shape retention part 30. The skeleton part 10 includes a body part 11 which can expand/contract along the radial direction of the tubular indwelling device 1. The membrane part 20 is provided along the body part 11, and includes a protruding part 22 that protrudes from a tube end part 11a so as to create a tapered shape in which a flow path cross-section area on a distal end side spaced apart from the tube end part 11a is smaller than a flow path cross-section area on a base end side which is the tube end part 11a side of the body part 11. The shape retention part 30 retains the shape of a flow outlet 23 of the protruding part 22.

An implantable artificial bronchus (IAB) is provided that is used for the treatment of chronic obstructive pulmonary diseases, such as pulmonary emphysema. The implantable artificial bronchus can be made with silicone or nitinol, and has a tapered cylindrical shape. Additional embodiments of this apparatus may be further associated with a one-way valve on the nozzle of the IAB.

Devices are provided with an internal dimension that can be reduced and increased in vivo. In one example, an interatrial shunt for placement at an atrial septum of a patient's heart includes a body. The body includes first and second regions coupled in fluid communication by a neck region. The body includes a shape-memory material. The body defines a passageway through the neck region for blood to flow between a first atrium and a second atrium. The first and second regions are superelastic at body temperature, and the neck region is malleable at body temperature. A flow area of the passageway through the neck region may be adjusted in vivo.