Disclosed is an antimicrobial composition and a coating method using the same. The composition is highly hydrophilic and biocompatible, thereby enabling a thin and flexible coating layer and exhibiting antimicrobial activity. The coating composition of the present invention is suitably used for coating vascular catheters, stents, guide wires, and other invasive medical devices.

Articles, such as catheters, comprising markings and associated methods are generally provided. The articles described herein may be configured to be exhibit one or more desirable properties. For instance, in some embodiments, an article comprises markings that are spaced from each other at known distances. Such markings may be employed to aid users of the article in measuring distances. As another example, an article may be configured to swell upon exposure to the fluid such that markings positioned thereon do not crack or delaminate. It is also possible for the article to be configured to swell upon exposure to the fluid in a known, predictable, and/or uniform manner. This swelling may cause the spacings between the markings to increase, and such increase may also be in a known, predictable, and/or uniform manner. When the fluid causing the article to swell is a bodily fluid, such as a fluid the article would be exposed to upon implantation into a patient, and the article swells such that the markings have a known spacing in the patient, the markings may advantageously be employed to measure distances in the patient and/or the change in marking spacing may be employed to determine the swelling of the article in the patient.

This present invention discloses kits, solutions, and methods for regenerating a hydrogel coating on a hydrogel coated medical device. The solution comprises a first hydrophilic polymer and a second hydrophilic polymer. The reaction of the first and second hydrophilic polymers with the originally coated surface of the medical device forms an at least partially covalently crosslinked hydrogel layer. The solution may be part of a kit, wherein the first and second hydrophilic polymers are provided separately with or without the medical device included in the kit. The originally coated surface of the medical device has an initial thickness before use or wear and a second thickness before use or wear, the second thickness being less than the first thickness. Treatment of the hydrogel coated medical device with the solutions described herein increased the second thickness to approach a final thickness that is substantially equal to the initial thickness.

The present disclosure provides an antimicrobial substrate including a substrate and a polythiophene polymer. The polythiophene polymer has a number of repeated monomer units from n is 5-14 or 30 to 120, a number average molecular weight (Mn) from 1,000 to 4,000 or 10,000 to 40,000; and a polydispersity index (PDI) from 1 to 1.3. The present disclosure also provides the polythiophene polymer and uses thereof.

Systems, apparatuses, and methods for treating a patent foramen ovale (PFO) of a patient. A system may include a catheter configured to extend within at least a portion of the patients heart. One or more stabilizer balloons may be coupled to the catheter and configured to be positioned within a tunnel of the patent foramen ovale and inflated to apply a force to at least one of a septum primum or a septum secundum of the patients heart. An injection device may be configured to inject material into at least one of the septum primum or the septum secundum to cause swelling of the injected septum primum or the injected septum secundum in a direction towards the opposing septum primum or the opposing septum secundum.

A method for delivering an immunotherapy agent to a tumor includes advancing the delivery device into a vessel of a patient, and infusing the agent under pressure into the vessel to penetrate the tumor. The delivery device prevents reflux of the agent toward non-treatment sites.

The present disclosure relates to the field of endovascular treatment. More particularly, the present invention uses a modified hydrogel intrasaccular occlusion device designed to implement an endovascular treatment to ameliorating or eliminating aneurysm recurrence, which hydrogel may optionally be impregnated with pharmaceutical compounds. The present invention also teaches the use of thin hydrogel coatings to ameliorate endovascular treatment related difficulties.

The present invention is an inflatable balloon which is enclosed by an expandable cover which becomes increasingly porous/permeable during expansion. The balloon is coated or enclosed with a matrix which contains a pharmaceutically active agent. During expansion of the balloon, the pharmaceutically active agent is released or extruded through the expandable cover into a body cavity such as an artery or vein. The present invention also provides for a method of treating a disease or condition by delivering the inflatable balloon to a particular body cavity.

Radiation sterilized hydrogels, medical devices containing the same and method of making radiation sterilized hydrogels.

Disclosed are polymer-coated surfaces encapsulating task specific ionic liquids (ILs), IL complexes, or oils. Also disclosed are polymer-coated surfaces, wherein the polymer comprises ILs or neutral ethylene diamine compounds. Also disclosed are methods of antimicrobial treatment, metal remediation, and gas absorption using polymer coatings encapsulating ILs, IL complexes, and oils or polymer coatings comprising ILs and neutral ethylene diamine compounds.