Embodiments herein include delivery systems for active agent coated balloons and related methods. In an embodiment, a delivery system can include a tunneling sheath and a balloon catheter. The tunneling sheath can include a tubular shaft having an outer diameter and defining a lumen. The tunneling sheath can include a proximal collar defining a lumen. The balloon catheter can include a balloon catheter shaft disposed within the tubular shaft. The balloon catheter shaft can include a lumen for the passage of a fluid therein. The balloon catheter can include an expandable balloon disposed on the balloon catheter shaft. The balloon catheter shaft can include an active agent layer disposed on the expandable balloon. The position of the expandable balloon can be configured to be stationary relative to the tubular shaft as the delivery system is passed through a blood vessel of a patient. Other embodiments are also included herein.

Compositions comprising an isolated peptide, which may for example optionally comprise a sequence selected from the group consisting of YDYNWY (SEQ ID NO: 1), YDYNLY (SEQ ID NO: 2), FDYNFY (SEQ ID NO: 3), FDYNLY (SEQ ID NO: 4), FDYNWY (SEQ ID NO: 5), YDWNLY (SEQ ID NO: 6), YDWHLY (SEQ ID NO: 7), and WDYNLY (SEQ ID NO: 8), extracted from organisms such as aquatic organisms and moss or any other sequence described herein, and methods of using same, including for treatment of or prevention of formation of microbial biofilms and against adhesion of a cell to a surface.

A method for replicating a structure of a biological tissue provides a plastically deformable film that is subjected to a pressure in order to press it into a mold. The mold comprises formations for pit-like depressions, recesses and notches. The recesses each border on at least one of the pit-like depressions and are opened up. The notches form at least one film hinge in the film. The shaped film is folded into a stack having at least two layers of film, the film hinge forming the folding edge for the folding process. The pit-like depressions are closed along their direction of extension by a neighboring layer of the stack and form each time a capillary. At least two of the opened recesses are arranged one on top of another and form a canal arranged perpendicular to the plane of extension of the film.

A medical device such as a catheter may have an elongate shaft that includes a hypotube having a cut formed therein. The elongate shaft may define a lumen that extends within the elongate shaft. A polymer may be disposed over at least a portion of the hypotube. A medical device may include a cut hypotube having a constant pitch and may be configured to reversibly and temporarily alter the pitch of at least a portion of the cut hypotube. In some cases, the medical device may be configured to reversibly and/or temporarily alter a compressive strength of at least a portion of the cut hypotube.

Disclosed is a method for preparing a nitric oxide-generating adherent coating, comprising: preparing a buffer solution containing polyphenol compounds, organic selenium or sulfur compounds and soluble copper salts; then contacting a base material with the solution, and washing and drying to obtain a target product. The nitric oxide-generating material prepared by the method can be used for any medical device, such as an intravascular stent, or materials and any complex-shaped base material, and has the capability of scavenging free radicals and catalyzing RSNO to produce nitrogen monoxide, and also has a response function of reduced glutathione (GSH), an antimicrobial function and all the physiological functions possessed by nitrogen monoxide.

Embodiments relate to the design and use of a low profile ablation catheter with a liquid core for use in laser ablation removal of arterial plaque blockages to restore blood flow.

Embodiments relate to the design and use of a low profile ablation catheter with a liquid core for use in laser ablation removal of arterial plaque blockages to restore blood flow.

A medical device for placement in a body of a mammal is provided. The medical device comprises (1) a polymeric matrix forming the device and defining a lumen through the device, the matrix comprising polymer macromolecules and defining spaces between the polymer macromolecules; (2) a drug contained within at least some of the spaces of the matrix; and (3) a material contained within at least some of the spaces of the matrix to affect diffusion of the drug out of the polymeric matrix when the medical device is placed in the boy of the mammal.

The invention provides compositions for the inhibition of bacterial adhesion. The composition can include nanocrystalline cellulose (NCC) and a water-soluble polymer, which form an NCC hydrogel in water. The NCC hydrogel can be used to treat or coat devices such as a catheter, whereby the NCC hydrogel inhibits bacterial adhesion to the catheter surface to thereby inhibit biofilm formation and growth of bacteria on the catheter surface. The compositions and devices can thus be useful for inhibiting or preventing conditions such as urinary tract infections.

Various aspects of the present disclosure provide compositions including a water-insoluble therapeutic agent and a gallate-containing compound. Other aspects provide methods of using such compositions.