PATENT CLAIM ANALYSIS

Application Number: 16195573
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-11
Patent Classification: ["600", "509000"]

Abstract:
Systems, apparatus, and methods are disclosed for conveying signals between a patient and monitoring and treatment devices. An EP system provides large-signal input protection and RF ablation signal noise suppression while preserving the integrity of relevant components of small signals. The EP system has a low-noise amplifier topology with minimal hardware filtering. An input protection circuit shunts to ground signals with amplitude above an ablation voltage. An RF filter circuit linearly attenuates the signals between 300 kHz and 600 kHz. A low-frequency feedback circuit drives a common mode node of the RF filter circuit for additional attenuation. A signal amplification circuit amplifies the signals between 0.01 Hz and 1000 Hz. A fast recovery circuit feeds back a low-frequency voltage signal to the signal amplification circuit to gradually reduce offset voltage of the signals. A high-resolution A/D converter converts the signals from the signal amplification circuit to clean digital signals.

Claim (Index 30):
A method of conveying biomedical signals between a patient and monitoring or treatment devices, comprising:\n receiving, by an input protection circuit, the biomedical signals as differential signals from respective electrodes attached to the patient; shunting to ground, by the input protection circuit, the differential signals having an amplitude above a first threshold greater than an ablation voltage amplitude; linearly attenuating, by a radio frequency filter circuit comprising common mode node, the differential signals within a first frequency range between about 300 kHz and about 600 kHz; feeding back, by a low-frequency feedback circuit, a voltage to drive the common mode node of the radio frequency filter circuit for additional attenuation of the attenuated differential signals; amplifying and outputting, by a signal amplification circuit comprising an input and an output, the differential signals within a second frequency range between about 0.01 Hz and about 1000 Hz at a gain less than or equal to about 50; limiting, by a large-signal detection and fast recovery circuit, the differential signals that have the amplitude above a second threshold for a certain period of time; feeding back, by the large-signal detection and fast recovery circuit, a low-frequency voltage signal to the input of the signal amplification circuit to reduce offset voltage of each of the differential signals; and converting, by an analog-to-digital converter, the differential signals output by the signal amplification circuit, from an analog domain to a digital domain.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 98.0
- Lexical Diversity: 1.81818
- Patent Class: 600.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['16195562', '12795072', '12048221', '14896337', '11700405']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4388551007186577
- 35 USC 102 Novelty (BERT): 0.5515290179031657
- Combined Prediction Score: 0.4501224924371085
- Mean Citation Score: 211.257756
- Max Citation Score: 402.97025
- Similarity Product: 312.0554522049427

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 0

Dataset: test