-
1.发明申请公开(公告)号：US20160012637A1
公开(公告)日：2016-01-14
申请号：US14797336
申请日：2015-07-13
发明人： Carlos Carbonera , Vasily Vylkov , Daniel R. Starks , Jiang Qian , Eric J. Voth
CPC分类号： G06T17/10 , G06T11/60 , G06T15/08 , G06T17/00 , G06T2210/12
摘要： A method of constructing a bounding box comprises: acquiring a set of sensed data points; adding, for each sensed data point, at least one calculated data point; and defining a bounding box containing the sensed and calculated data points. A method of identifying voxels in a voxel grid corresponding to a plurality of data points comprises: calculating, for each data point, a distance between it and each voxel; creating a subset of voxels comprising voxels having a distance from one data point that is less than a predetermined distance; creating another subset comprising those voxels that neighbor a voxel in the first subset; computing, for each voxel in the second subset, a distance between it and each voxel in the first subset; and identifying each voxel in the first subset that is a distance away from each voxel in the second subset that exceeds a predetermined distance.
-
公开(公告)号：US10945632B2
公开(公告)日：2021-03-16
申请号：US15412097
申请日：2017-01-23
摘要： A method of detecting dislodgement of a navigational reference for a localization system includes securing a reference catheter, including at least one reference localization element, at an initial reference location within a localization field. The positions of one or more of the reference localization elements are monitored for a perceived displacement that suggests that the reference catheter has become dislodged from the initial reference location (e.g., a displacement above a certain threshold, such as about 4 mm). The direction of this perceived displacement may then be further analyzed (e.g., compared to a predicted or most likely direction of displacement) to determine whether there has been an actual dislodgement of the reference catheter, and, if so, an appropriate signal (e.g., an audible or visual warning) may be generated. Upon dislodgement, guidance may be provided to aid the practitioner in restoring the reference catheter to its initial location.
-
3.发明申请公开(公告)号：US20220148260A1
公开(公告)日：2022-05-12
申请号：US17525077
申请日：2021-11-12
发明人： Carlos Carbonera , Vasily Vylkov , Daniel R. Starks , Jiang Qian , Eric J. Voth
摘要： A method of constructing a bounding box comprises: acquiring a set of sensed data points; adding, for each sensed data point, at least one calculated data point; and defining a bounding box containing the sensed and calculated data points. A method of identifying voxels in a voxel grid corresponding to a plurality of data points comprises: calculating, for each data point, a distance between it and each voxel; creating a subset of voxels comprising voxels having a distance from one data point that is less than a predetermined distance; creating another subset comprising those voxels that neighbor a voxel in the first subset; computing, for each voxel in the second subset, a distance between it and each voxel in the first subset; and identifying each voxel in the first subset that is a distance away from each voxel in the second subset that exceeds a predetermined distance.
-
4.发明授权公开(公告)号：US11636651B2
公开(公告)日：2023-04-25
申请号：US17525077
申请日：2021-11-12
发明人： Carlos Carbonera , Vasily Vylkov , Daniel R. Starks , Jiang Qian , Eric J. Voth
摘要： A method of constructing a bounding box comprises: acquiring a set of sensed data points; adding, for each sensed data point, at least one calculated data point; and defining a bounding box containing the sensed and calculated data points. A method of identifying voxels in a voxel grid corresponding to a plurality of data points comprises: calculating, for each data point, a distance between it and each voxel; creating a subset of voxels comprising voxels having a distance from one data point that is less than a predetermined distance; creating another subset comprising those voxels that neighbor a voxel in the first subset; computing, for each voxel in the second subset, a distance between it and each voxel in the first subset; and identifying each voxel in the first subset that is a distance away from each voxel in the second subset that exceeds a predetermined distance.
-
5.发明授权公开(公告)号：US11205300B2
公开(公告)日：2021-12-21
申请号：US14797336
申请日：2015-07-13
发明人： Carlos Carbonera , Vasily Vylkov , Daniel R. Starks , Jiang Qian , Eric J. Voth
摘要： A method of constructing a bounding box comprises: acquiring a set of sensed data points; adding, for each sensed data point, at least one calculated data point; and defining a bounding box containing the sensed and calculated data points. A method of identifying voxels in a voxel grid corresponding to a plurality of data points comprises: calculating, for each data point, a distance between it and each voxel; creating a subset of voxels comprising voxels having a distance from one data point that is less than a predetermined distance; creating another subset comprising those voxels that neighbor a voxel in the first subset; computing, for each voxel in the second subset, a distance between it and each voxel in the first subset; and identifying each voxel in the first subset that is a distance away from each voxel in the second subset that exceeds a predetermined distance.
-
公开(公告)号：US20170164868A1
公开(公告)日：2017-06-15
申请号：US15412097
申请日：2017-01-23
CPC分类号： A61B5/06 , A61B5/042 , A61B5/05 , A61B5/062 , A61B5/063 , A61B5/7207 , A61B5/7221 , A61B34/20 , A61B2034/2051 , A61B2034/2053 , A61B2034/2072
摘要： A method of detecting dislodgement of a navigational reference for a localization system includes securing a reference catheter, including at least one reference localization element, at an initial reference location within a localization field. The positions of one or more of the reference localization elements are monitored for a perceived displacement that suggests that the reference catheter has become dislodged from the initial reference location (e.g., a displacement above a certain threshold, such as about 4 mm). The direction of this perceived displacement may then be further analyzed (e.g., compared to a predicted or most likely direction of displacement) to determine whether there has been an actual dislodgement of the reference catheter, and, if so, an appropriate signal (e.g., an audible or visual warning) may be generated. Upon dislodgement, guidance may be provided to aid the practitioner in restoring the reference catheter to its initial location.
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.022 秒)