Patent classifications
A61L27/28
COATED MEDICAL DEVICE PRODUCT AND PROCESS
Medical device products have a coating with NAMSA Class VI certification and properties corresponding to the prior art coatings within U.S. Pat. No. 10,604,660. Medical device processes use the medical device product having a coating with NAMSA Class VI certification and properties corresponding to the prior art coatings within U.S. Pat. No. 10,604,660.
Folded Porous Ingrowth Features for Medical Implants
The present disclosure provides folded, porous metal scaffolds that can be used as bone ingrowth features on medical implants.
Folded Porous Ingrowth Features for Medical Implants
The present disclosure provides folded, porous metal scaffolds that can be used as bone ingrowth features on medical implants.
IMPLANTS HAVING GEL ZONES WITH HIGHER LEVELS OF COHESIVENESS FOR ESCHEWING SCALLOPING, DIMPLING, AND WRINKLING
An implantable prosthesis includes a silicone shell having an apex, a base, a radius located between the apex and the base, and a dome extending between the apex and the radius. The silicone shell has an outer surface and an inner surface that surrounds an interior volume of the silicone shell. A silicone gel material is disposed within the interior volume of the silicone shell. A gelling enhancer layer containing a gelling enhancer covers the inner surface of the silicone shell. After the silicone gel material has been thermally cured, the silicone gel material that is located within a zone that is in the vicinity of the gelling enhancer layer has a higher level of cohesiveness than the silicone gel material that is located outside the zone. The gelling enhancer contains crosslinker and/or platinum catalyst, such as a Karstedt catalyst.
Jacket for surgical heart valve
Various aspects of the present disclosure are directed toward apparatuses, systems, and methods that include a prosthetic valve. The prosthetic valve may include a jacket configured to cover at least one of gaps, spaces, or interfaces in a frame or between one or more leaflets attached to the frame.
Sanitation systems and components thereof having a slippery surface
The present disclosure describes a strategy to create self-healing, slippery liquid-infused porous surfaces. Roughened (e.g., porous) surfaces can be utilized to lock in place a lubricating fluid, referred to herein as Liquid B to repel a wide range of materials, referred to herein as Object A (Solid A or Liquid A). Slippery liquid-infused porous surfaces outperforms other conventional surfaces in its capability to repel various simple and complex liquids (water, hydrocarbons, crude oil and blood), maintain low-contact-angle hysteresis (<2.5°), quickly restore liquid-repellency after physical damage (within 0.1-1 s), resist ice, microorganisms and insects adhesion, and function at high pressures (up to at least 690 atm). Some exemplary application where slippery liquid-infused porous surfaces will be useful include energy-efficient fluid handling and transportation, optical sensing, medicine, and as self-cleaning, and anti-fouling materials operating in extreme environments.
Sanitation systems and components thereof having a slippery surface
The present disclosure describes a strategy to create self-healing, slippery liquid-infused porous surfaces. Roughened (e.g., porous) surfaces can be utilized to lock in place a lubricating fluid, referred to herein as Liquid B to repel a wide range of materials, referred to herein as Object A (Solid A or Liquid A). Slippery liquid-infused porous surfaces outperforms other conventional surfaces in its capability to repel various simple and complex liquids (water, hydrocarbons, crude oil and blood), maintain low-contact-angle hysteresis (<2.5°), quickly restore liquid-repellency after physical damage (within 0.1-1 s), resist ice, microorganisms and insects adhesion, and function at high pressures (up to at least 690 atm). Some exemplary application where slippery liquid-infused porous surfaces will be useful include energy-efficient fluid handling and transportation, optical sensing, medicine, and as self-cleaning, and anti-fouling materials operating in extreme environments.
Prosthesis for in vivo insertion, coated with cross-linked polyphosphorylcholine
The present invention relates to a coating composition for an in-vivo implantable prosthesis including a photoinitiator, a crosslinking agent, and a phosphorylcholine (PC) monomer having an acrylate group, a method of coating an in-vivo implantable prosthesis using the coating composition, and a cosmetic prosthesis coated with the crosslinked polyphosphorylcholine. An in-vivo implantable prosthesis coated with crosslinked polyphosphoryicholine may be manufactured by a simple method of applying a coating composition including a photoinitiator, a crosslinking agent, and a phosphorylcholine (PC) monomer having an acrylate group according to the present invention, and then irradiating UV rays. The crosslinked polyphosphorylcholine coating may provide hydrophilicity for the surface and may also remarkably reduce adsorption of proteins and fibroblasts, which may cause side effects such as capsular contracture. Further, the coating has strong enough not to peel off even under stimulation, and therefore, it is maintained under vigorous activity after implantation, thereby being usefully applied to the manufacture of an in-vivo implantable prosthesis with reduced side effects, such as breast prosthesis for cosmetic surgery.
Prosthesis for in vivo insertion, coated with cross-linked polyphosphorylcholine
The present invention relates to a coating composition for an in-vivo implantable prosthesis including a photoinitiator, a crosslinking agent, and a phosphorylcholine (PC) monomer having an acrylate group, a method of coating an in-vivo implantable prosthesis using the coating composition, and a cosmetic prosthesis coated with the crosslinked polyphosphorylcholine. An in-vivo implantable prosthesis coated with crosslinked polyphosphoryicholine may be manufactured by a simple method of applying a coating composition including a photoinitiator, a crosslinking agent, and a phosphorylcholine (PC) monomer having an acrylate group according to the present invention, and then irradiating UV rays. The crosslinked polyphosphorylcholine coating may provide hydrophilicity for the surface and may also remarkably reduce adsorption of proteins and fibroblasts, which may cause side effects such as capsular contracture. Further, the coating has strong enough not to peel off even under stimulation, and therefore, it is maintained under vigorous activity after implantation, thereby being usefully applied to the manufacture of an in-vivo implantable prosthesis with reduced side effects, such as breast prosthesis for cosmetic surgery.
CELL-EMBEDDED VASCULAR GRAFT FOR TRANSPLANTATION
Disclosed herein is a transplantation graft for transplanting cells into a patient. In an aspect, the graft may include a first graft layer having a generally cylindrical configuration defining a lumen therethrough, a coating layer surrounding the first graft layer, and a plurality of cells or vectors implanted in either the first graft layer or the coating layer. Further disclosed herein is a method for transplanting cells into a patient and a method of treating a patient in need thereof. The transplantation graft may be implanted in the patient in an arteriovenous configuration and the coating layer protects the implanted cells from the patient's immune system. The plurality of cells in the transplantation graft may release a biologically active agent in response to a biological factor in blood flowing through the lumen of the transplantation graft.