PATENT CLAIM ANALYSIS

Application Number: 15945436
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-12
Patent Classification: ["600", "484000"]

Abstract:
A method of controlling a gas delivery apparatus including an apparatus controllable variable using an iterative algorithm to deliver a test gas (TG) for non-invasively determining a subject's pulmonary blood flow comprising iteratively generating and evaluating test values of a iterated variable based on an iterative algorithm in order output a test value of the iterated variable that meets a test criterion wherein iterative algorithm is characterized in that it defines a test mathematical relationship between the at least one apparatus controllable variable, the iterated variable and an end tidal concentration of test gas attained by setting the apparatus controllable variable, such that the iterative algorithm is determinative of whether iteration on the test value satisfies a test criterion or iteratively generates a progressively refined test value.

Claim (Index 1):
A method of controlling a gas delivery apparatus to deliver a test gas (TG) for non-invasively determining a subject's pulmonary blood flow comprising the steps of:\n (a) Using an iterative algorithm to control at least one apparatus controllable variable to test one or more test values for an iterated variable by:\n A) obtaining input of a steady state value of an end tidal test gas concentration and a corresponding value of at least one apparatus controllable variable for use in the iterative algorithm; \n B) providing an inspired concentration of a test gas that achieves a test concentration of the test gas in the subject's end tidal exhaled gas; \n C) using a test value of the iterated variable in the iterative algorithm to set the gas delivery apparatus to deliver, for at least one series of inspiratory cycles, an inspiratory gas comprising a test gas that is computed to maintain the test concentration of the test gas in the subject's end tidal exhaled gas; \n D) obtaining input comprising measurements of end tidal concentrations of test gas for expiratory cycles corresponding to the at least one series of inspiratory cycles and a corresponding value of at least one apparatus controllable variable for use in the iterative algorithm; \n E) using at least one measurement obtained in step D) as a reference end tidal concentration value to generate at least one of the following outputs:\n (1) the test value satisfies a test criterion; \n (2) a refined test value; \n wherein the reference end tidal concentration is a surrogate steady state value and the reference end tidal concentration is used to refine the test value; \n \n (b) If output (1) is not obtained, repeating step (a) as necessary at least until output (1) is obtained; and (c) If output (1) is obtained, outputting a value for pulmonary blood flow which, based on the test criterion, sufficiently represents a subject's true pulmonary blood flow.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 91.0
- Lexical Diversity: 1.7973
- Patent Class: 600.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['10545562', '14959810', '12743224', '13848304', '10091169']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4799172488310866
- 35 USC 102 Novelty (BERT): 0.5010322234233245
- Combined Prediction Score: 0.4820287462903104
- Mean Citation Score: 244.83448400000003
- Max Citation Score: 297.7348
- Similarity Product: 225.49238713812832

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