Modular Surgical Attachment Wireless UART Link for Rotating Shafts

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing surgical instruments and robots lack efficient and reliable communication methods for transmitting UART communications over short-range wireless connections, which is crucial for seamless operation and control.

Innovation Solution

Implementing a modular attachment for surgical instruments that enables wireless communication between the end effector and the handle assembly using a secure short-range wireless (SRW) connection, facilitated by a communication bus and induction power transfer circuit, allowing for UART encoding and decoding of signals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If wireless communication is implemented for transmitting UART communications between surgical instruments and robots, then operational control and coordination are enhanced, but communication reliability and security may be compromised

Engineering Contradiction:
Improveoperational controlVSAvoidcommunication reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent introduces a secure remote wireless communication module that acts as an intermediary between the surgical instrument and the control system. This module establishes a secure wireless connection through authenticated pairing, where the handle assembly and surgical instrument form a trusted communication network. The intermediary module encrypts and manages the UART communication data stream, ensuring that operational control is maintained while communication reliability and security are protected through authenticated wireless protocols.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If modular attachment with SRW connection is used, then coordination between components is improved, but device complexity increases

Engineering Contradiction:
Improvecoordination efficiencyVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements a universal communication bus that serves multiple functions within the surgical instrument system. The same communication bus handles both power transmission and data communication (UART) between the handle assembly and the surgical instrument. The secure remote wireless communication module also performs dual roles: establishing secure wireless connections and managing the communication protocol. This multi-functionality improves coordination efficiency while minimizing the addition of separate dedicated components, thereby controlling device complexity.

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

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

Enables reliable and efficient transmission of UART communications, enhancing the operational control and coordination between surgical instruments and robots, thereby improving surgical precision and efficiency.

Implementation Method 1

a secure short-range wireless (SRW) connection, facilitated by a communication bus and induction power transfer circuit

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS12432790B2Method and device for transmitting UART communications over a security short range wireless communication
Publication Date: 2025.09.30 CILAG GMBH INTERNATIONAL
  • US12432790B2 patent drawing
  • US12432790B2 patent drawing
  • US12432790B2 patent drawing

AI summary

Disclosed is a modular surgical instrument, comprising a handle assembly comprising a handle assembly control circuit and a modular attachment. The modular attachment comprises a nozzle, and a shaft extending distally from the nozzle, the shaft defining a central longitudinal axis. The modular attachment further comprises an end effector distal to the shaft, the end effector comprising a sensor array. The modular attachment further comprises a modular attachment control circuit communicably coupled to the sensor array, and physically coupled to the shaft. The modular attachment control circuit is configured to rotate with the shaft relative to the handle assembly about the central longitudinal axis. The modular attachment control circuit is configured for wireless communication with the handle assembly control circuit.