Patent application number | Description | Published |
20100189333 | METHOD AND BRANCHING DETERMINATION DEVICE FOR DETERMINING A BRANCHING POINT WITHIN A HOLLOW ORGAN - A method is disclosed for determining a branching point within a hollow organ in image data representing the spatial structure thereof. In at least one embodiment, the method includes setting a start point within the hollow organ; determining at least one local threshold which corresponds to the presence of a wall of the hollow organ; carrying out a region growing method using the threshold; analyzing the connectivity of a number of outer growth layers; and localizing a branching on the basis of the connectivity analysis. Moreover, at least one embodiment of the invention relates to a correspondingly designed branching determination unit. | 07-29-2010 |
20110262020 | Method And Computer System For Automatic Vectorization Of A Vessel Tree - A method and a computer system are disclosed for automatic vectorization of the profile of a vessel tree and at least one of its properties on the basis of tomographic images of an examined patient. In at least one embodiment, using previously established location probabilities of landmarks in the vessel tree, there is an automatic determination of a plurality of distinctive landmarks in the current tomographic image data record of the patient, a registration of the current tomographic image data record to the statistical vessel model, an automatic determination of previously unidentified landmarks in the registered tomographic image data record using characteristic identification features of the previously unidentified landmarks from the statistical vessel model and the statistical location probability thereof, and a determination of at least one current vessel model using the identified landmarks and at least one vessel property at and/or between the identified landmarks. | 10-27-2011 |
20130223720 | METHOD AND SYSTEM FOR DETERMINING A BOUNDARY SURFACE NETWORK - A method is disclosed for determining a boundary surface network of the tubular object. In an embodiment, a representation of the tubular object is initially provided on the basis of image data and local dimension information is provided for points of the representation. A subdivided division structure presentation of the tubular object with division cells is then created, which based on the local dimension information, including a different spatial extent. Finally a boundary surface network is derived on the basis of the division structure presentation. Also described are a boundary surface network determination system and a division structure determination system for performing such a method. | 08-29-2013 |
20130223748 | METHOD AND SYSTEM FOR DETERMINING A BOUNDARY SURFACE NETWORK - A method is disclosed for determining a boundary surface network of a tubular object. An ordered series of contours is first supplied on the basis of image data in a source space. A transformation function is created for at least two consecutive contours in the series, and a unit space segment object is created in the unit space on the basis of the consecutive contours. A local signed distance function is determined in the unit space. In addition, a relative positional information of a query point is determined in the source space from a surface of a segment object in the source space, the segment object being based on the consecutive contours, on the basis of the local signed distance function in the unit space and using the transformation function. Finally, the boundary surface network is created on the basis of the relative positional information that has been determined. | 08-29-2013 |
Patent application number | Description | Published |
20080197120 | Method For Producing a Hole and Associated Device - Conventional methods for producing a hole in a component make use of special lasers with short laser pulse lengths. The aim of the invention is to reduce the time and money required for producing a hole. According to the inventive method, the laser pulse lengths are varied, short laser pulse lengths only being used in the area to be removed in which an influence on the throughflow or exhaust behavior is noticeable. This is, e.g., the inner surface of a diffuser of a hole that can be produced in a very precise manner using short laser pulse lengths. | 08-21-2008 |
20090001061 | Method For Producing a Hole - There are a multiplicity of methods of making through-holes. In particular in the production of a multiplicity of film-cooling holes, as in gas turbine blades or combustion chamber elements, small time advantages are also important when making a hole. The method according to the invention, to make the hole close to the final contour in each case in sections in a top and a bottom region in order to then produce the final contour with other laser parameters, achieves time advantages. | 01-01-2009 |
20090067998 | Component Having a Film Cooling Hole - Conventionally coated components with film cooling holes are known, comprising a diffuser, extending through the layers into the substrate. According to the invention, the component is embodied such that the whole diffuser is largely arranged in the layer. | 03-12-2009 |
20100147812 | Method For Producing A Hole - There is described a method for producing a hole using e.g. a lasers, wherein short laser pulse durations are used. The laser pulse durations are varied, short laser pulse durations being utilized only in the area to be removed in which an influence on the penetration behavior and discharge behavior is noticeable while longer pulse durations of >0.4 ms are used. This is the case for the inner surface of a diffuser of a hole, for example, which can be produced very accurately by means of short laser pulse durations. | 06-17-2010 |
20110300000 | Component Having a Film Cooling Hole - Conventionally coated components with film cooling holes are known, comprising a diffuser, extending through the layers into the substrate. According to the invention, the component is embodied such that the whole diffuser is largely arranged in the layer. | 12-08-2011 |
20120091106 | Method For Producing A Hole - There is described a method for producing a hole using e.g. a lasers, wherein short laser pulse durations are used. The laser pulse durations are varied, short laser pulse durations being utilized only in the area to be removed in which an influence on the penetration behavior and discharge behavior is noticeable while longer pulse durations of >0.4 ms are used. This is the case for the inner surface of a diffuser of a hole, for example, which can be produced very accurately by means of short laser pulse durations. | 04-19-2012 |
20120145678 | Method for Producing a Hole - There are a multiplicity of methods of making through-holes. In particular in the production of a multiplicity of film-cooling holes, as in gas turbine blades or combustion chamber elements, small time advantages are also important when making a hole. The method according to the invention, to make the hole close to the final contour in each case in sections in a top and a bottom region in order to then produce the final contour with other laser parameters, achieves time advantages. | 06-14-2012 |
20140048521 | METHOD FOR PRODUCING A HOLE - There are a multiplicity of methods of making through-holes. In particular in the production of a multiplicity of film-cooling holes, as in gas turbine blades or combustion chamber elements, small time advantages are also important when making a hole. The method according to the invention, to make the hole close to the final contour in each case in sections in a top and a bottom region in order to then produce the final contour with other laser parameters, achieves time advantages. | 02-20-2014 |
20140349065 | MODIFIED INTERFACE AROUND A HOLE - A layer system including a substrate and a layer is provided. The layer system has a hole at least in the layer, and wherein at least one recess is present in a surface of the layer in a vicinity around the hole or directly adjoining a boundary line of the hole. | 11-27-2014 |
Patent application number | Description | Published |
20080300451 | Method for Placing a Jacket on a Section of a Natural Vessel with the Aid of a Tubular Auxiliary Instrument - The invention relates to a method for placing a flexible jacket | 12-04-2008 |
20140303664 | ATRAUMATIC STERNAL PLATE - The present application relates to an atraumatic sternal plate for haemostasis for a retractor with a pressure plate and a retaining device attached to the pressure plate. The pressure plate can be attached, by means of the retaining device, to either the blades of a retractor or to a sternal half of the patient, so that the pressure plate abuts the sagittal incision surface of a sternal half when spreading the sternum of a patient by means of a retractor. | 10-09-2014 |
20150018624 | SURGICAL RETRACTOR - The invention relates to a surgical retractor, particularly for the retraction of a separated sternum, with a holding device and two spreader arms, wherein the spreader arms are mounted with one end on the holding device, at a distance from each other that is adjustable in a spreading plane, and at least two retaining elements for retention of bone material, for example of the separated sternum, are arranged on each of the spreader arms. To develop this retractor for sternotomy in such a way as to permit gentler opening of the separated sternum, it is proposed that at least one of the retaining elements is mounted such that its position can be modified in the retraction direction with respect to that end of the spreader arm mounted on the holding device. | 01-15-2015 |