Disposable Surgical Navigation Frame with Rigid Marker Mounts

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Solution Overview

Problem

Conventional surgical navigation systems face challenges in ensuring accurate alignment and reducing the risk of infectious disease transmission and mechanical failure of reusable reference frames, leading to potential misalignment and errors during surgical procedures.

Innovation Solution

A disposable medical device with a frame member featuring a gooseneck bend and rigid mounting device, where marker elements are pre-attached and aligned to maintain consistent positioning, eliminating the need for recalibration and reducing contamination risks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If reusable reference frames with mounting assembly structures are used, then the device can be sterilized and reused, but the mounting structures may become bent or skewed during marker element removal and attachment, introducing misalignment errors

Engineering Contradiction:
Improvereusability of reference frameVSAvoidalignment accuracy of marker elements
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent employs a disposable reference frame that is discarded after a single use, eliminating the need for repeated sterilization and remounting of marker elements. This single-use approach prevents cumulative damage to mounting structures and ensures consistent alignment accuracy without the risks associated with reusability.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

2Productivity

If marker elements are removed and replaced on reusable reference frames, then the reference frame can be reused, but there is a risk of breakage of mounting assembly structures and introduction of misalignment errors

Engineering Contradiction:
Improvereusability of reference frameVSAvoidstructural integrity of mounting assembly
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The reference frame is designed as a disposable component that is discarded after one use, eliminating the cumulative damage and structural fatigue that would result from repeated mounting and remounting of marker elements. This ensures structural integrity is maintained throughout the device's service life.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The marker elements are pre-mounted on the reference frame during manufacturing with precise alignment, eliminating the need for subsequent removal and reattachment operations that could compromise structural integrity or introduce misalignment errors.

Inventive Principle:
Principle #10Preliminary action

3Productivity

If reusable reference frames undergo sterilization processes, then the device can be reused, but there are concerns about total elimination of infectious diseases and possible contamination

Engineering Contradiction:
Improvereusability of reference frameVSAvoidrisk of infectious disease transmission
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The reference frame is designed as a single-use disposable device that is discarded after one surgical procedure, completely eliminating the risk of cross-contamination and infectious disease transmission between patients. No sterilization processes are required, ensuring absolute hygiene safety.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

4Manufacturing precision

If marker elements are pre-attached and rigidly mounted on the frame, then alignment accuracy is improved, but the device complexity increases

Engineering Contradiction:
Improvealignment accuracy of marker elementsVSAvoidcomplexity of mounting structure
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The marker elements are pre-mounted on the reference frame during the manufacturing process with precise alignment, eliminating the need for complex adjustable mounting mechanisms. This preliminary assembly simplifies the device structure while ensuring high alignment accuracy during surgical use.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS10537393B2Medical device for surgical navigation system and corresponding method of manufacturing
Publication Date: 2020.01.21 IZI MEDICAL PRODUCTS LLC
  • US10537393B2 patent drawing
  • US10537393B2 patent drawing
  • US10537393B2 patent drawing

AI summary

A device and manufacturing method for a surgical navigation system, comprising a frame member having an attachment location and a rigid mounting device disposed in the attachment location. The frame member comprises an upper straight portion connected to a lower straight portion via a bent portion, wherein the lower straight portion comprises a plurality of mounts each having a top surface. A centerline extending through the rigid mounting device is level with each of the top surfaces.