PATENT CLAIM ANALYSIS

Application Number: 16118530
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-01
Patent Classification: ["600", "301000"]

Abstract:
A system and method is presented for cuff-less blood pressure measurement in a mobile device. A key aspect of this disclosure is the discovery of a new location for blood pressure measurement at the fingertip of a subject and that reflectance-mode photoplethysmography can be used to help make this measurement. Through experiments in human subjects, it was discovered that it is indeed possible to measure systemic blood pressure by having a subject press the fingertip against a reflectance-mode photo-plethysmography-force sensor unit under visual guidance and then compute blood pressure from the resulting variable-amplitude blood volume oscillations and applied pressure via an oscillometric algorithm.

Claim (Index 21):
A mobile device, comprising:\n a housing defining two opposing exterior surfaces, each of the opposing exterior surfaces being substantially planar; a processor enclosed within the housing; a display unit integrated into a first of the two opposing exterior surfaces; a reflectance-mode photoplethysmography (PPG) sensor integrated into the housing and configured to measure blood volume oscillations; a force sensor disposed underneath the display unit and configured to measure applied pressure; a visual guide on the display unit, such that the visual guide is an indicia for placement of the fingertip on the device; and a non-transitory computer-readable medium enclosed in the housing that stores instructions that, when executed by the processor, cause the processor to:\n measure pressure applied to the sensing unit by a fingertip of a user, \n measure blood volume oscillations in the fingertip, \n guide the user via the display unit to vary pressure being applied to the sensing unit while the blood volume oscillations and pressure are measured, \n generate an oscillogram from the measured pressure and the measured blood volume oscillations, where the oscillogram plots amplitude of blood volume oscillations as a function of the measured pressure, \n calculate a blood pressure value from the oscillogram, and \n present the blood pressure value on the display unit.

Metadata:
- Claim Count in Document: 38.0
- Percentile: 96.0
- Lexical Diversity: 1.50704
- Patent Class: 600.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14012124', '11508123', '12650389', '11327932', '15424608']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4705357116162367
- 35 USC 102 Novelty (BERT): 0.4998646254266492
- Combined Prediction Score: 0.4734686029972779
- Mean Citation Score: 237.545708
- Max Citation Score: 263.1127
- Similarity Product: 166.74927891016603

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