Patent classifications
A61L31/048
Reduction of implant infection via tunable stimulation of localized adaptive immune response
Compositions, implantation devices and methods for stimulating an immune response to infection are discussed. In some examples, the compositions, implantation devices or methods of regulating the amplification of an adaptive immune response to infection involves use of one or more particles locally at a surgical or implant site to control bacterial infections without detrimental systemic side-effects. In some examples, the particles can be coated or layered onto the surface of an implantable device or material. In other examples, the particles can be injected into the site of implantation.
ELECTROSPUN MATERIAL COVERED MEDICAL APPLIANCES AND METHODS OF MANUFACTURE
A medical appliance or prosthesis may comprise one or more layers of electrospun nanofibers, including electrospun polymers. The electrospun material may comprise layers including layers of polytetrafluoroethylene (PTFE). Electrospun nanofiber mats of certain porosities may permit tissue ingrowth into or attachment to the prosthesis.
ELECTROSPUN MATERIAL COVERED MEDICAL APPLIANCES AND METHODS OF MANUFACTURE
A medical appliance or prosthesis may comprise one or more layers of electrospun nanofibers, including electrospun polymers. The electrospun material may comprise layers including layers of polytetrafluoroethylene (PTFE). Electrospun nanofiber mats of certain porosities may permit tissue ingrowth into or attachment to the prosthesis.
Hydrophilic polyproylene melt additives
Melt additive ionic and non-ionic surfactants to impart stable durable hydrophilicity to thermoplastic polymers or blends thereof.
Hydrophilic polyproylene melt additives
Melt additive ionic and non-ionic surfactants to impart stable durable hydrophilicity to thermoplastic polymers or blends thereof.
Biocompatible surfaces and devices incorporating such surfaces
The invention is an improved biocompatible surface for a variety of medical purposes. The biocompatible surface employs a unique tight microstructure that demonstrates enhanced cellular response in the body, particularly when placed in contact with blood. As a blood contact surface, the present invention can be beneficially employed in a wide variety of implantable devices and in many other devices and equipment that come in contact with blood.
Biocompatible surfaces and devices incorporating such surfaces
The invention is an improved biocompatible surface for a variety of medical purposes. The biocompatible surface employs a unique tight microstructure that demonstrates enhanced cellular response in the body, particularly when placed in contact with blood. As a blood contact surface, the present invention can be beneficially employed in a wide variety of implantable devices and in many other devices and equipment that come in contact with blood.
Marked fluoropolymer surfaces and method of manufacturing same
A method of manufacturing a coated low-friction medical device, such as low-friction medical tubing, including applying a coating to one or more selected portions of a surface of low-friction medical tubing to indicate at least one marking formed along the surface of the low-friction medical tubing, and simultaneously or substantially simultaneously: (a) curing the applied coating to a designated temperature (which is above the temperature at which the low-friction medical tubing begins to decompose and shrink) to adhere the applied coating to the surface of the low-friction medical tubing, (b) utilizing one or more anti-shrinking devices to counteract or otherwise inhibit the shrinking of the low-friction medical tubing, and (c) exhausting any harmful byproducts resulting from curing the low-friction medical tubing to a temperate above the temperature at which the low-friction medical tubing begins to decompose.
GASKET USING MEDICAL SILICONE RUBBER HAVING SLIDABILITY, AND SYRINGE USING SAID GASKET
A syringe is to be obtained by using PTFE for a gasket main body that makes a direct contact with an injection solution and using a slidable silicone rubber at a portion that does not make contact with the injection solution.
A syringe A includes a syringe barrel 1, a gasket 10 press-fitted within the syringe barrel 1, and a plunger rod 5 mounted in the gasket 10. In the gasket 10, a concaved groove 18 is formed over the whole circumference of a slide-contact surface 11 of a main body portion 26 that is formed of a rigid plastic having a drug solution-resistant property against a drug solution 30 to be loaded in the syringe barrel 1 and that is configured to slidingly contact an inner circumferential surface 2 of the syringe barrel 1. In a slide-contact ring 19 that is to be fitted in the concaved groove 18 and that is configured to slidingly contact the syringe barrel inner circumference surface 2, a silicone oil and a spherical ultrahigh molecular weight fine powder are added to a silicone rubber base material 19c.
ANTIFUNGAL-GRAFTED POLYOLEFIN
Various embodiments disclosed relate to an antifungal-grafted polyolefin. The present invention provides an antifungal-grafted polyolefin comprising an antifungal-grafted repeating unit having the structure:
##STR00001##
At each occurrence, -A- can be chosen from —O— and —NH—. At each occurrence, -AF can be an independently selected grafted antifungal compound. At each occurrence, -L- can be independently chosen from a bond and the structure:
##STR00002##
or a salt thereof.
At each occurrence —R can be independently chosen from —H and -AF. At each occurrence, the variable n is independently about 1 to about 100,000.