Astra Tech AB Patent applications |
Patent application number | Title | Published |
20150038947 | MEDICAL DEVICE WITH HYDROPHILIC COATING - A medical device is disclosed, comprising a substrate and a hydrophilic surface coating arranged on said substrate. The substrate has, on its surface coated with said hydrophilic surface coating, a surface texture with an arithmetical mean deviation of the surface profile (Ra) of at least 3 μm and/or a profile section height difference (Rdc (1-99%)) of at least 18 μm. It has surprisingly been found that the increased surface roughness of the substrate provides significant improvements in e.g. water retention for the hydrophilic coating. | 02-05-2015 |
20130013081 | NANOSURFACE - The invention relates to a method for modification of a biocompatible component comprising the steps of a) providing a biocompatible component at least partly covered by metallic oxide; and b) treating at least a part of said component, which part is covered by said metallic oxide, with an aqueous composition comprising oxalic acid; whereby a modified metallic oxide is obtained. The invention also relates to a biocompatible component comprising a substrate having a surface comprising a) a microstructure comprising pits separated by plateus and/or ridges; and b) a primary nanostructure being superimposed on said microstructure, said primary nanostructure comprising depressions arranged in a wave-like formation. | 01-10-2013 |
20120316570 | BONE TISSUE IMPLANT COMPRISING STRONTIUM IONS - The present invention is based on that local administration of strontium ions in bone tissue has been found to improve the bone formation and bone mass upon implantation of a bone tissue implant in said bone tissue. In particular, the invention relates to a bone tissue implant having an implant surface covered by an oxide layer comprising strontium ions and a method for the manufacture thereof. A blasting powder comprising strontium ions, a method for locally increasing bone formation, and the use of strontium ions or a salt thereof for manufacturing a pharmaceutical composition for locally increasing bone formation are also provided by the present invention. | 12-13-2012 |
20120315310 | BONE TISSUE IMPLANT COMPRISING LITHIUM IONS - The present invention is based on that local administration of lithium ions in bone tissue has been found to improve the bone formation and bone mass upon implantation of a bone tissue implant in said bone tissue. In particular, the invention relates to a bone tissue implant having an implant surface covered by an oxide layer comprising lithium ions and a method for the manufacture thereof. A blasting powder comprising lithium ions, a method for locally increasing bone formation, and the use of lithium ions or a salt thereof for manufacturing a pharmaceutical composition for locally increasing bone formation are also provided by the present invention. | 12-13-2012 |
20120270179 | METHOD OF PROVIDING A PATIENT-SPECIFIC DENTAL FIXTURE-MATING ARRANGEMENT - The present invention relates to a method of providing a patient-specific dental fixture-mating arrangement, such as a dental abutment. According to the method, an arrangement is provided which can only be arranged in one rotational position with respect to a fixture in the jawbone of a patient. The arrangement is designed based on the orientation and inclination of the fixture relative to the jawbone. The invention also relates to a dental implant arrangement, comprising a dental fixture and a final dental restoration having mating indexing means. | 10-25-2012 |
20120237899 | DENTAL IMPLANT ASSEMBLY - The present invention relates to a dental implant assembly, comprising a fixture for insertion into a jawbone which is provided with a first thread with a first thread start, and a dental component which is not axially symmetrical and which is provided at its apical end with a second thread with a second thread start having a rotational position which is known in relation to the asymmetrical shape of the dental component for engagement with the first thread. | 09-20-2012 |
20120178049 | DENTAL COMPONENT, A DENTAL FIXTURE, A DENTAL IMPLANT ASSEMBLY AND A DENTAL IMPLANT SYSTEM - The present invention relates to a dental component, which can only be connected in one indexing position in one type of dental fixture, but in any one of a plurality of indexing positions with another type of dental fixture. The dental component is provided with primary projections which are not completely evenly distributed around the circumference of an engagement portion of the dental component. The invention also relates to a dental fixture, a dental implant assembly and a dental implant system. | 07-12-2012 |
20120165790 | CATHETER ASSEMBLY AND A METHOD AND SYSTEM FOR PRODUCING SUCH AN ASSEMBLY - A catheter assembly is disclosed, comprising a catheter, such as a urinary catheter, which at least a partly is provided with a hydrophilic coating. The catheter assembly further comprises a wetting fluid. The receptacle is in direct contact with the hydrophilic coating of the catheter over essentially the entire length of the part of the catheter being provided with the hydrophilic coating. This may e.g. be achieved by using a shrink wrap material. In order to accomplish adequate wetting, channels or the like may be provided on the inner surface of the receptacle or the outer surface of the catheter. | 06-28-2012 |
20120164599 | DENTAL FIXTURE, A DENTAL COMPONENT AND A DENTAL IMPLANT ASSEMBLY - The present invention relates to a dental fixture for insertion into a jawbone, said fixture comprising a holding portion which is arranged and configured for holding an engagement portion of a dental component, the holding portion being provided with an indexing section, wherein the shape of the mating contour of the indexing section in a first plane differ from the shape of the mating contour of the indexing section in a second plane being taken at a different height as seen in the apical-coronal extension of said fixture, and wherein the shapes of the mating contours of the indexing section at said first and second planes together allow a received dental component to be positioned in only one or two positions in relation to the fixture. The present invention also relates to a corresponding dental component and to dental implant assemblies. | 06-28-2012 |
20110306016 | Dental fixture - The invention relates to a dental fixture for insertion into a human jawbone. The fixture comprises a bone-contacting surface, wherein at least 15% of the bone-contacting surface is designed such that when a Gaussian 50 μm high-pass filter and a Gaussian 3 μm low-pass filter is applied to an original unfiltered set of measurement data which represents a topography of said surface and which is obtained at 50 times magnification by white light interferometry, the resulting filtered set of data presents a surface roughness having the roughness average parameter S | 12-15-2011 |
20110295239 | CATHETER ASSEMBLY COMPRISING A RECEPTACLE ACCOMMODATING A CATHETER AND A WETTING FLUID POUCH - A catheter assembly comprising:
| 12-01-2011 |
20110151026 | BONE TISSUE IMPLANT COMPRISING LITHIUM IONS - The present invention is based on that local administration of lithium ions in bone tissue has been found to improve the bone formation and bone mass upon implantation of a bone tissue implant in said bone tissue. | 06-23-2011 |
20100174382 | BONE TISSUE IMPLANT COMPRISING STRONTIUM IONS - The present invention is based on that local administration of strontium ions in bone tissue has been found to improve the bone formation and bone mass upon implantation of a bone tissue implant in said bone tissue. | 07-08-2010 |
20100173264 | NANOSURFACE - The invention relates to a method for modification of a biocompatible component comprising the steps of a) providing a biocompatible component at least partly covered by metallic oxide; and b) treating at least a part of said component, which part is covered by said metallic oxide, with an aqueous composition comprising oxalic acid; whereby a modified metallic oxide is obtained. The invention also relates to a biocompatible component comprising a substrate having a surface comprising a) a microstructure comprising pits separated by plateus and/or ridges; and b) a primary nanostructure being superimposed on said microstructure, said primary nanostructure comprising depressions arranged in a wave-like formation. | 07-08-2010 |
20090101531 | Catheter receptacle provided with an antimicrobial compound - A catheter assembly ( | 04-23-2009 |
20090099545 | Self-contained portable apparatus for administration of a drug solution - A self-contained portable apparatus for administration of a drug solution is disclosed, comprising: a housing having an enclosure for receiving a flexible pouch containing a drug solution, the output of which is connectable to a conduit for delivering said drug solution to a recipient. A pressurization system is arranged for providing a constant and controllable gas pressure to the housing, wherein a controllable pressure is obtained for a controllable delivery of the drug solution. The pressurization system comprises: a pressure source for delivering positive pressure gas; a pressure accumulation tank connected to said source and to said second chamber, arranged to provide a positive pressure reservoir; a one-way valve arranged between said pressure source and said pressure accumulation tank, enabling gas to flow solely in the direction from the pressure source to the pressure accumulation tank; and a mechanical pressure regulator arranged between said pressure accumulation tank and said housing. Hereby, an extremely stable and well controllable output pressure and output flow is obtainable. | 04-16-2009 |
20080200907 | Folded Catheter Assembly With Adhesive Grip - A catheter assembly is disclosed comprising a catheter and a receptacle enclosing said catheter. The receptacle has a first part and a second part, which parts are foldable over each other. Further, at least one sticky adhesive area is arranged on the surface of one of the parts of the receptacle in such a way that the sticky adhesive area is covered by the other part when the receptacle is in a folded disposition, and exposed to the environment when the receptacle is in an unfolded disposition. | 08-21-2008 |