PATENT CLAIM ANALYSIS

Application Number: 16050715
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-01
Patent Classification: ["324", "309000"]

Abstract:
A magnetic resonance (MR) device, having a gradient arrangement that includes a gradient coil (G) with an internal resistance (Rg), as well as an electric circuit for generating variable pulse-shaped currents through the gradient arrangement. The electric circuit has at least one low-voltage voltage source (V) for generating a voltage U≤100V, and a first circuit section in the electric circuit for current in the gradient coil in one direction and a second circuit section in the electric circuit for current in the gradient coil in a reverse direction to the first circuit section. This permits the generation of accurate square-wave current pulses, with a simultaneously short charging time of the auxiliary inductance.

Claim (Index 1):
A magnetic resonance device comprising a main field magnet for generating a uniform magnetic field in a measuring volume, with a gradient arrangement for generating magnetic field gradients in the measuring volume, incorporating at least one gradient coil with an internal resistance, and an electric circuit for generating variable pulse-shaped currents through the gradient arrangement, wherein the electric circuit comprises:\n a first switching element, which is series-connected to a first resistor, by which a current is switched-on or switched-off only in a first auxiliary coil; a second switching element, for switching a first serial current flux through the gradient coil and the first auxiliary coil; at least one low-voltage voltage source for generating a voltage U\u2264100V, by which a specific voltage drop across the internal resistance of the gradient coil is set, wherein the first auxiliary coil in the electric circuit is arranged between the voltage source and the gradient coil and is arranged in series with the gradient coil; and a first circuit section and a second circuit section, wherein the first circuit section comprises a third switching element between the voltage source and the first auxiliary coil, and wherein the second circuit section comprises a fourth switching element arranged in series with a second auxiliary coil, a fifth switching element arranged in series with a third resistor, and a sixth switching element arranged in series with a fourth resistor for switching a further serial current flux through the gradient coil in a reverse direction to the first serial current flux.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 95.0
- Lexical Diversity: 1.95385
- Patent Class: 324.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13703705', '10544355', '15524043', '11545040', '14851317']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5069494429390027
- 35 USC 102 Novelty (BERT): 0.4592499921169279
- Combined Prediction Score: 0.5021794978567953
- Mean Citation Score: 164.77955200000005
- Max Citation Score: 170.70242
- Similarity Product: 142.6341428720593

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

Dataset: test