The present disclosure provides a kirigami-inspired injectable stent system. The stent systems and methods enable radial/circumferential and longitudinal delivery of an extended release of therapeutics within tubular structures of the body, such as the GI tract and trachea. According to some aspects, a kirigami-based injectable stent system is provided that can enable drug release through deposition of therapeutic-coated needles of the stent in the tubular mucosa, such as often found in the gastrointestinal tract or trachea.

An illustrative stent may comprise an elongated tubular member having a first end and a second end and an intermediate region disposed therebetween. The elongated tubular member may include at least one flexible tie affixed to an end thereof. The tie may allow the stent to be attached to a lumen wall with a clip, such as a retention clip, to inhibit migration of the stent within the body lumen.

Devices and methods for treatment of bodily lumens and sphincters are disclosed. Some embodiments include methods and devices for inducing an inflammatory response and development of fibrosis, collagen, and/or scar tissue. In some embodiments, scaffolds may be composed of a matrix of filaments. Application of the methods and devices disclosed herein to treat Gastroesophageal Reflux Disease (GERD) and other sphincter disorders are discussed. Biodegradable scaffolds configured to induce an inflammatory response are also disclosed.

A surgical anchor device for being anchored on the mucous membrane of the inner wall of the intestine, the device having a temporary anchor element presenting anchoring that can be modified in a controlled manner and having a first substantially cylindrical multiply-perforated wall presenting properties of radial elasticity whereby the first wall presents an outer diameter that can be varied in controlled manner, wherein a portion of the inner surface of the first wall is lined with an independent leakproof inner sheath having only its longitudinal ends fastened to the anchor element to define a suction chamber between the inner sheath and the first wall, the temporary anchor element being coupled to a flexible or semi-rigid tube extending outside the anchor element, an open end of the injection-suction tube opening out into the suction chamber enabling air to be injected into or sucked out from the suction chamber.

An endoprosthesis has an expanded state and an unexpanded state, the endoprosthesis includes a stent, wherein the stent has a first end, a second end, an inner surface defining a lumen, an outer surface, and a thickness defined between the inner surface and the outer surface; and a stent end covering disposed at one of the first and second ends, the stent end covering including a polymeric coating that includes a base and a plurality of protrusions, the base including a first major surface facing the outer surface of the stent, the base further including a second major surface from which each of the plurality of protrusions extends outwardly, the first major surface opposing the second major surface, wherein the protrusions are arranged in a micropattern. Methods of making and using an endoprosthesis are provided.

Systems, instruments, methods, and compositions are described involving removing a portion of the epidermis within a donor site on a subject, and harvesting dermal plugs within the donor site. An injectable filler is formed by mincing the dermal plugs. The injectable filler is configured for injecting into a recipient site on the subject.

The present disclosure relates generally to stents, systems, and methods for anchoring devices within a body lumen by cooperation between the device and the body musculature. A device comprising an elongate tubular member may be deployed within a body lumen, where the body lumen includes a sphincter that regulates flow through the body lumen. The elongate tubular member includes a sleeve formed from a flexible membrane and one or more stents disposed at either or both ends of the sleeve. In some embodiments, the stents may be treatment stents configured to treat a portion of the body lumen. The elongate tubular member may be deployed within the body lumen such that the flexible membrane aligns with and moves in coordination with the sphincter, thereby increasing retention forces acting upon the elongate tubular member when the sphincter is closed to minimize treatment stent migration.

An illustrative endoluminal implant having an elongated tubular member. The elongate tubular member having a proximal stent, a distal stent and an interconnecting sleeve. The proximal stent tapers from a first outer diameter adjacent the proximal end region to a second smaller outer diameter adjacent the distal end region. The distal stent has an outer diameter less than the first outer diameter of the proximal stent. The interconnecting sleeve is collapsible in response to an applied radial force such that the sleeve is positionable across a natural valve or sphincter.

The present disclosure relates generally to stents, systems, and methods for gastrointestinal treatment. In some embodiments, a stent may include a tubular scaffold having a first end opposite a second end, wherein a lumen extends between the first and second ends. The tubular scaffold may include a flared section and a medial section extending from the flared section, wherein a first diameter of the flared section is greater than a second diameter of the medial section. The stent may further include a liner extending partially along a surface of the tubular scaffold, wherein the liner is spaced from an anchoring region of the flared section to promote tissue ingrowth with the flared section.

A luminal endoprosthesis (1) at least partially delimits a prosthesis lumen (2), for implantation in an anatomical structure (3) that at least partially defines at least one cavity (4) and includes a pathological portion (13). The luminal endoprosthesis (1) includes two or more layers (5, 6, 7), at least one layer (5, 6, 7) having at least one threadlike element (8) forming an armor (9). The luminal endoprosthesis (1) includes an anchoring portion (10), for anchoring to an anatomical portion (11) of the walls of the cavity (4) of the anatomical structure (3). A working portion (12) faces the pathological portion (13) of the anatomical structure (3). The two or more layers (5, 6, 7) are separated from each other at least in the working portion (12) of the luminal endoprosthesis (1), avoiding connecting elements between one layer (5, 6, 7) and at least one adjacent layer.