Modular Energy Module with Dual RF Amplifiers for Multi-Instrument Output

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Solution Overview

Problem

Surgical operating rooms are cluttered with multiple devices requiring unique interfaces and techniques, leading to inefficiency and complexity, and existing energy modules cannot simultaneously drive multiple bipolar RF instruments due to a single output port limitation.

Innovation Solution

A method and system for a modular energy module that includes a controller to select between different power amplifier circuits based on load requirements, and a multi-energy port splitter to distribute energy to multiple instruments, along with a backplane communication interface for seamless integration of modules.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single energy module with one output port is used, then the device complexity is reduced, but the ability to drive multiple bipolar RF instruments simultaneously is limited

Engineering Contradiction:
Improveability to drive multiple bipolar RF instrumentsVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The energy module is segmented into multiple independent power amplifier circuits (first power amplifier circuit and second power amplifier circuit) that can operate simultaneously. Each amplifier circuit has its own output port, allowing multiple bipolar RF instruments to be driven at the same time while maintaining modular architecture that manages complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The energy module is designed with multi-functionality to support both single and dual instrument operations. The module can selectively activate one or both power amplifier circuits based on the surgical needs, providing universal capability to drive either one or two bipolar RF instruments through the same device interface.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Power

If high power waveforms are delivered, then the power output is increased, but heat generation and efficiency are compromised

Engineering Contradiction:
Improvepower outputVSAvoidheat generation
Core Design Contradiction:
PowerVSLoss of energy

Solution Approach 1:

The system dynamically selects between different power amplifier circuits based on real-time power requirements. When high power is needed, the system activates both amplifier circuits in parallel to deliver high power waveforms. When lower power suffices, only one amplifier circuit is activated, maintaining high efficiency and reducing heat generation. This dynamic adaptation resolves the contradiction between power output and energy loss.

Inventive Principle:
Principle #15Dynamics

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach reduces device clutter, enhances surgical staff efficiency by consolidating equipment interfaces, and allows simultaneous operation of multiple bipolar RF instruments, improving surgical procedure efficiency and safety.

Implementation Method 1

The first power amplifier circuit is configured to receive and amplify the input signal to generate a first output signal into a load

Methodology Applied
Scientific EffectPower amplification:

Implementation Method 2

converting, by a digital-to-analog converter (DAC) coupled to the controller, the digital waveform to an analog waveform

Methodology Applied
Scientific EffectDigital-to-analog conversion:

Data Source

PatentUS20250216918A1Method for energy delivery for modular energy system
Publication Date: 2025.07.03 CILAG GMBH INTERNATIONAL
  • US20250216918A1 patent drawing
  • US20250216918A1 patent drawing
  • US20250216918A1 patent drawing

AI summary

A method of delivering power to a load coupled to an energy module includes determining a power to be produced in a load, generating a signal, and selecting a first or second power amplifier circuit based on the power to be produced in the load. The power rating of the amplifier circuits is different. Another method includes generating a digital waveform having a predetermined wave shape and frequency, converting the digital waveform to an analog waveform, selecting a first power amplifier circuit or a second power amplifier circuit based on a predetermined power output to be produced by the first or second power amplifier circuit into a load coupled to an energy output port of the energy module, coupling the analog waveform to the selected first or second power amplifier circuit, and producing the predetermined power output into the load.