Surgical Adapter Counting Rack for Safe Catheter Reuse Limits

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Solution Overview

Problem

Current minimally invasive surgical procedures for treating mitral regurgitation require manual operations by doctors, which are technically demanding and expose medical staff to radiation, leading to a long learning curve and potential health risks.

Innovation Solution

An adapter and surgical assistance system that allows for remote operation of a catheter system, featuring an installation platform with an instrument driving device and a counting rack to limit usage times, and a push-pull drive assembly for motion transmission, enabling remote control and preventing reuse beyond the set lifespan.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual operations are performed by doctors during surgical procedures, then the catheter system can be operated flexibly, but the learning curve for doctors becomes long and technical skill requirements increase

Engineering Contradiction:
Improveease of catheter operationVSAvoidcomplexity of surgical procedure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The adapter serves as an intermediary device between the surgery performing device and the catheter system. It includes a transmission shaft with locking tabs that engage with grooves on the catheter, and an instrument driving device with driving members that connect to surgical instruments. This intermediary mechanism translates the rotation and pushing actions of the surgery performing device into precise control of the catheter and surgical instruments, making operation easier while maintaining control precision.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If doctors perform surgery under CT equipment cooperation, then surgical guidance is improved, but medical staff exposure to radiation increases

Engineering Contradiction:
Improvesurgical guidance precisionVSAvoidradiation exposure to medical staff
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The invention replaces the need for doctors to manually operate the catheter system under radiation with an automated adapter system. The adapter includes a transmission shaft connected to a surgery performing device that can be operated from outside the radiation field. The driving members on the transmission shaft automatically control the catheter and surgical instruments, substituting manual mechanical operation with an automated mechanical system that eliminates radiation exposure for medical staff.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If the adapter can be reused multiple times, then cost efficiency improves, but the risk of unexpected failures increases beyond its lifespan

Engineering Contradiction:
Improveusage efficiency of adapterVSAvoidreliability of adapter beyond lifespan
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The adapter includes a counting rack with a series of grooves and locking tabs that engage with these grooves during each use cycle. The counting rack preliminarily determines the maximum number of times the adapter can be used (designed for 5-10 cycles). After the predetermined number of uses, the locking tabs can no longer engage with the grooves, preventing further use. This preliminary action built into the structure ensures the adapter is retired before reliability degrades, preventing unexpected failures while maximizing safe usage.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12575902B2Adapter and surgical assistance system
Publication Date: 2026.03.17 ROBGENIX MEDICAL PTE LTD
  • US12575902B2 patent drawing
  • US12575902B2 patent drawing
  • US12575902B2 patent drawing

AI summary

The present disclosure provides an adapter and a surgical assistance system, where the adapter includes an instrument driving device and an installation platform, the instrument driving device is provided on the installation platform, the adapter is installed on a surgery performing device via the installation platform, a motor in the surgery performing device is configured to drive the instrument driving device, and the instrument driving device is configured to drive the surgical instrument; the installation platform includes a counting rack, a platform body and an installation bottom plate, where the platform body is in transmission connection with a power output shaft of the surgery performing device via the installation bottom plate, and the counting rack is installed on the platform body and configured to limit the usage times of the adapter. The adapter provided by the present disclosure can limit the usage times of the adapter by the counting rack, thereby preventing it from being reused after exceeding the set effective usage times, and avoiding the occurrence of unexpected failures of the adapter beyond its lifespan.