PATENT CLAIM ANALYSIS

Application Number: 16167351
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-02
Patent Classification: ["600", "513000"]

Abstract:
A handheld device measures all vital signs and some hemodynamic parameters from the human body and transmits measured information wirelessly to a web-based system, where the information can be analyzed by a clinician to help diagnose a patient. The system utilizes our discovery that bio-impedance signals used to determine vital signs and hemodynamic parameters can be measured over a conduction pathway extending from the patient's wrist to a location on their thoracic cavity, e.g. their chest or navel. The device's form factor can include re-usable electrode materials to reduce costs. Measurements made by the handheld device, which use the belly button as a ‘fiducial’ marker, facilitate consistent, daily measurements, thereby reducing positioning errors that reduce accuracy of standard impedance measurements. In this and other ways, the handheld device provides an effective tool for characterizing patients with chronic diseases, such as heart failure, renal disease, and hypertension.

Claim (Index 31):
A biometric sensor configured to measure a value of stroke volume (SV) from a patient, comprising:\n an arm-receiving portion comprising an opening configured to receive a distal portion of the patient's arm and first and second electrodes configured and arranged to contact the distal portion of the patient's arm when it is inserted in the opening; and a body-contacting portion comprising third and fourth electrodes configured and arranged to contact a second body location that is one of the patient's torso, legs, opposing arm, and neck while the patient's arm is inserted in the opening; wherein the first and third electrodes are configured to inject electrical current into the patient at their respective points of contact with the patient and the second and fourth electrodes are configured to sense first and second biometric signals, respectively, which are induced by the injected electrical current; the biometric sensor further comprising a first analog system configured to receive the first and second biometric signals and to process them to generate first and second analog physiological waveforms; and a first digital system configured to digitize the analog physiological waveforms and to process them with computer code to determine the value of SV, wherein the computer code is configured to determine SV from the equation: SV = V c \u00d7 ( d \ue89e \ue89e \u0394 \ue89e \ue89e Z \ue8a0 ( t ) \ue89e / \ue89e dt ) max Z o \u00d7 LVET where V c  corresponds to a volume conductor calculated from a weight value, Z 0  corresponds to a baseline impedance value of one of the physiological waveforms, LVET corresponds to a left ventricular ejection time, and (d\u0394Z(t)/dt) max  corresponds to a maximum value of a pulse determined from one of the physiological waveforms or a derivative thereof.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 97.0
- Lexical Diversity: 1.52294
- Patent Class: 600.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14988691', '14988693', '14988720', '14988688', '14988704']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5827168407258551
- 35 USC 102 Novelty (BERT): 0.5964632552644906
- Combined Prediction Score: 0.5840914821797186
- Mean Citation Score: 484.7014
- Max Citation Score: 539.9273
- Similarity Product: 507.2001521288513

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