A cell growth inhibiting polymer for use in an ophthalmic implant includes at least one cell growth inhibiting monomer; and at least one other monomer selected from an acrylic monomer, a hydrophobic acrylic monomer, a hydrophilic acrylic monomer, a silicone monomer, a vinyl monomer and/or a collagen monomer.

A method of using a disposable catheter sleeve to prevent infection. A method of using an indwelling catheter apparatus including a catheter tube comprising a first end for insertion into a patient's body and a disposable catheter sleeve wrapped around the catheter tube proximate to the first end of the catheter tube to prevent infection.

A Delivery System for delivery of an Active Component is provided. The Delivery System comprises a Delivery Matrix and an Active Component. The Delivery Matrix has one or both of (i) a Cationic Component; and (ii) a Matrix Forming Substance. The Cationic Component has one or both of: (i) a cationic polymer or cationic copolymer, and (ii) a positively charged non-polymeric compound or composition. The Active Component comprises a cationic bioactive. The Delivery Matrix has a mEq amount of positive charge which is equal to or exceeds the mEq amount of positive charge of the Active Component. The Delivery Matrix may comprise chitosan, or other biopolymers, synthetic polymers, matrix polymers and large molecules, which themselves are matrix forming, or are combined with a Matrix Forming Substance and one or more other Cationic Components to form the positively charged Delivery Matrix.

The present disclosure generally relates to implantable devices including a releasable nitrite ion and to methods of preparing and using such compositions and devices. In one embodiment, the device is a stent, for example, a vascular stent. In another embodiment, the nitrite ion is ionically bound to an inorganic ion.

A biocompatible composite material for controlled release is disclosed, comprising a biocompatible metal oxide structure with a loaded network of pores. The pore network of the biocompatible composite material is filled with a uniformly distributed biologically active micellizing amphiphilic molecule, the size of these pores ranging from about 0.5 to about 100 nanometers. The material is characterized in that when exposed to phosphate-buffered saline (PBS), the controlled release of the active amphiphilic molecule is predominantly diffusion-driven over time.

Bacteria-responsive core-shell nanofibers and a process for the preparation thereof are described. The nanofibers release of an antibacterial agent in response to the presence of bacteria. The core of the nanofiber comprises a biocompatible polymer together with an antibacterial agent such as a quaternary ammonium compound, for example benzyl dimethyl tetradecyl ammonium chloride (BTAC). Surrounding the core is shell comprised of a bacterially degradable polymer, which is susceptible to break-down by bacterial enzymes such as lipase, or to acidic pH conditions. The shell may comprise, for example, polycaprolactone (PCL) and poly(ethylene succinate) (PES). The nanofibers may be incorporated into wound dressings.

A bioprosthetic valve and a preparation method thereof are provided. The bioprosthetic valve includes a stent and a functional biological tissue material attached to the stent. The functional biological tissue material is a biologicaltissue covalently bonded with an active group and a functional molecule or group. The method improves the anti-thrombosis and anti-calcification functions by covalently modifying the surface of a biological valve using an active group and a functional molecule or group with a substantial degree of grafting. The new bioprosthetic valve does not include aldehyde residues, exhibits excellent biocompatibility, optimal mechanical properties, high stability, and can meet the performance requirements of a biological valve delivered through a catheter.

In one aspect, the disclosure relates to protective, anti-bacterial coatings for medical implants and methods of making the same. Also disclosed herein are methods for improving the anti-bacterial properties of a medical device coated with silicon carbide (SiC) or titanium nitride (TiN). Further disclosed herein are medical devices including an anti-microbial layer prepared by the disclosed methods. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

A medical dressing is disclosed, the medical dressing has an adhesive layer having a skin-facing surface to adhere the medical dressing to a dermal surface, wherein said adhesive layer comprises a first chemical compound incorporated within said adhesive layer, and wherein at least a portion of said skin-facing surface has a coating comprising a second chemical compound. Also disclosed is a method of manufacturing such a medical dressing.

Antimicrobial and antithrombogenic polymer or polymeric blend, compounds, coatings, and materials containing the same, as well as articles made with, or coated with the same, and methods of making the same exhibiting improved antimicrobial properties and reduced platelet adhesion. Embodiments include polymers with antimicrobial and antithrombogenic groups bound to a single polymer backbone, an antimicrobial polymer blended with an antithrombogenic polymer, and medical devices coated with the antimicrobial and antithrombogenic polymer or polymeric blend.