Patent classifications
A61L2300/20
Treatment of implants with phosphonic acid compounds
The present invention relates to a process of treating an implant, comprising a step of treating the surface of the implant with at least one phosphonic acid compound or a pharmaceutically acceptable salt, ester or amide thereof under sonication at a temperature of about 50° C. to about 90° C. This process is highly advantageous in that it allows the formation of a monolayer of the phosphonic acid compound on the implant surface, having a particularly dense surface coverage which, in turn, results in an improved implant biocompatibility and improved osseointegration. The invention further relates to a surface-treated implant obtainable by this process and, in particular, it provides an implant having a surface made of a metal, a metal alloy or a ceramic, wherein a phosphonic acid compound or a pharmaceutically acceptable salt, ester or amide thereof is bound to the surface of the implant and forms a monolayer having an implant surface coverage, in terms of the ratio of the phosphorus content to the metal content as determined by X-ray photoelectron spectroscopy (XPS), of at least 70% of a reference maximum surface coverage.
NANOFIBER COMPOSITE MEMBRANE FOR GUIDED BONE REGENERATION, AND MANUFACTURING METHOD THEREFOR
Provided is a nanofiber composite membrane for guided bone regeneration, which includes: spinning a spinning solution by an electrospinning method to produce nanofibers; accumulating the nanofibers, to prepare a certain thickness of a nanofiber web; and drying and thermally calendering the nanofiber web to sterilize the nanofiber web, wherein the spinning solution contains a biocompatible plasticizer to maintain physical properties, flexibility and elasticity of the membrane, by suppressing an increase in brittleness in a sterilization treatment.
Stent assembly and methods for treatment via body lumens
Various stent assemblies for placement in a body lumen that includes a support element comprising metal struts constructed to be positioned in a body lumen, and a knitted layer or cover disposed over an interior, an exterior, or both, of the support element and along an entire length thereof, wherein the knitted layer or cover comprises a single polymer fiber or metal wire having a diameter of at least 40 nanometers to 30 microns, wherein the support element and knitted cover together have apertures sized 100 microns to 300 microns in diameter, or alternatively from 200 microns to 1500 microns, to block larger debris when the stent assembly is properly placed in a body lumen. Methods of stenting a body lumen by applying the stent assembly to a patient in need of treatment and expanding the stent assembly in situ are disclosed.
Coatings containing multiple drugs
A method for depositing a coating comprising a polymer and at least two pharmaceutical agents on a substrate, comprising the following steps: providing a stent framework; depositing on said stent framework a first layer comprising a first pharmaceutical agent; depositing a second layer comprising a second pharmaceutical agent; Wherein said first and second pharmaceutical agents are selected from two different classes of pharmaceutical agents.
DEVICE FOR ADSORBING ODOURS
The invention relates to a device for adsorbing odours comprising an absorbent layer and an adsorbent layer, said adsorbent layer being provided with a material permeable to volatile organic compounds (VOCs) and an adsorbent particulate filler comprising at least one spice. Such a device is particularly useful for adsorbing and masking body odours.
Device for adsorbing odours
The invention relates to a device for adsorbing odours comprising an absorbent layer and an adsorbent layer, said adsorbent layer being provided with a material permeable to volatile organic compounds (VOCs) and an adsorbent particulate filler comprising at least one spice. Such a device is particularly useful for adsorbing and masking body odours.
Oxygen generating biomaterial
Certain embodiments include materials that carry oxygen and emit molecular oxygen upon heating. The approach reported here uses thermal decomposition of organic endoperoxide compounds to produce singlet oxygen. In certain aspects the oxygen carrier comprises an organic compound either alone or contained in a polymeric carrier or other carrier material that is used to form a coating, layer, or bulk substance that can be a solid, a gel or a fluid. The oxygen-carrier is most conveniently prepared by oxidation of a precursor compound, the structure of which determines its thermal stability and thus how rapidly oxygen is released at any given temperature.
Extracellular Matrix Tissue Prostheses
Tissue prostheses having a base structure and a physiological sensor system. The tissue prostheses are adapted and configured to induce remodeling of damaged tissue and regeneration of new tissue and concurrently detect and monitor physiological characteristics when implanted in the subject.
DEVICE FOR ADSORBING ODOURS
The invention relates to a device for adsorbing odours comprising an absorbent layer and an adsorbent layer, said adsorbent layer being provided with a material permeable to volatile organic compounds (VOCs) and an adsorbent particulate filler comprising at least one spice. Such a device is particularly useful for adsorbing and masking body odours.
Extracellular Matrix Structures
A sheet structure comprising two joined extracellular matrix (ECM) tissue or sheet layers and a physiological sensor disposed therebetween; the ECM tissue being derived from a mammalian tissue source that includes small intestine submucosa (SIS), urinary bladder submucosa (UBS), stomach submucosa (SS), urinary basement membrane (UBM), liver basement membrane (LBM), amniotic membrane, mesothelial tissue, placental tissue and cardiac tissue.