PATENT CLAIM ANALYSIS

Application Number: 15928974
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-08
Patent Classification: ["600", "117000"]

Abstract:
A global registration system and method identifies bronchoscope position without the need for significant bronchoscope maneuvers, technician intervention, or electromagnetic sensors. Virtual bronchoscopy (VB) renderings of a 3D airway tree are obtained including VB views of branch positions within the airway tree. At least one real bronchoscopic (RB) video frame is received from a bronchoscope inserted into the airway tree. An algorithm according to the invention is executed on a computer to identify the several most likely branch positions having a VB view closest to the received RB view, and the 3D position of the bronchoscope within the airway tree is determined in accordance with the branch position identified in the VB view. The preferred embodiment involves a fast local registration search over all the branches in a global airway-bifurcation search space, with the weighted normalized sum of squares distance metric used for finding the best match.

Claim (Index 11):
A global registration method useful in bronchoscopic guidance and other applications, the method comprising the steps of:\n obtaining virtual bronchoscopy (VB) renderings of a 3D airway tree, the renderings including VB views and branch positions within the airway tree; receiving a real bronchoscopic (RB) view at an unknown or arbitrary location along an unknown or arbitrary airway branch of the airway tree; providing and executing an algorithm on a computer operative to use the RB view to search and analyze the VB renderings to identify the VB view and branch position that most closely matches the received RB view; and outputting the 3D position of the bronchoscope within the airway tree based upon the VB view and branch position identified in the VB view; wherein the search includes:\n an intra-branch search to identify an optimal VB view along each airway branch of the plurality of airway branches of the airway tree that matches the received RB view, wherein the intra-branch search spans less than all possible view positions in each branch; and \n an inter-branch search subsequent to the intra-branch search in which at least one of the optimal VB views from the intra-branch search that most closely matches the RB view is identified and used for determining the 3D position of the bronchoscope.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 90.0
- Lexical Diversity: 1.68421
- Patent Class: 600.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13362252', '12022620', '12866758', '11437229', '11437230']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4898595715992782
- 35 USC 102 Novelty (BERT): 0.5301266900593805
- Combined Prediction Score: 0.4938862834452884
- Mean Citation Score: 281.9834340000001
- Max Citation Score: 390.90073
- Similarity Product: 306.62345922376164

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test