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 1):
A system for conveying biomedical signals between a patient and monitoring or treatment devices, the system comprising:\n an electrocardiogram (ECG) board having a Wilson Central Terminal (WCT) and a plurality of channels, wherein each channel of the plurality of channels has an output and an input, each input being adapted to be coupled to a respective ECG electrode, wherein the respective ECG electrode is a respective precordial (V) electrode or a respective limb lead, wherein each of the respective channels coupled to a given respective limb lead comprises:\n a differential circuit having a common reference node, a first path and a second path, the first path coupled to the given respective limb lead and the second path coupled to the common reference node, wherein each of the first path and the second path comprises:\n an input protection circuit adapted to shunt to ground a received signal of the biomedical signals that has an amplitude above a first threshold; \n a radio frequency filter circuit coupled to the input protection circuit, and adapted to linearly attenuate the biomedical signals within a first frequency range between about 300 kHz and about 600 kHz; and \n a feedback circuit coupled to the radio frequency filter circuit and adapted to drive a voltage at a common mode node of the radio frequency filter circuit; \n \n a signal amplification stage coupled to each of the first path and the second path, wherein a gain of the signal amplification stage is less than or equal to about 50 within a second frequency range between about 0.01 Hz and about 1000 Hz, wherein the signal amplification stage comprises an input and an output; and \n an analog-to-digital converter coupled to the output of the signal amplification stage, \n wherein the respective channel coupled to the respective precordial (V) electrode comprises the first path of the input protection circuit, the radio frequency filter circuit coupled to the input protection circuit, the feedback circuit coupled to the radio frequency filter circuit, the signal amplification stage coupled to the radio frequency filter circuit, and the analog-to-digital converter coupled to the output of the signal amplification stage, wherein the WCT is adapted to be coupled to receive signals from the respective limb leads, and output a signal that is an average of the respective limb leads, and wherein each respective precordial (V) electrode is referenced to the output signal of the WCT.

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): 0.4398336548435995
- 35 USC 102 Novelty (BERT): 0.5501858591257998
- Combined Prediction Score: 0.4508688752718195
- Mean Citation Score: 211.257756
- Max Citation Score: 402.97025
- Similarity Product: 289.3897783461213

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