Disc Cutter With Internal Capture Chamber for Continuous Removal

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Solution Overview

Problem

Existing cutting tools for disc surgery are ineffective in simultaneously cutting and capturing disc material, requiring separate removal methods like suction, which complicates the surgical process.

Innovation Solution

A cutting tool with inwardly extending cutting teeth and a hollow interior chamber for capturing cut disc material, combined with a power source for rotary or oscillating motion, allowing simultaneous cutting and evacuation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a rotary cutter with helixes is used to remove disc material, then cutting action is achieved, but cut material cannot be captured simultaneously and requires separate removal methods

Engineering Contradiction:
Improvecutting efficiencyVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent combines the cutting function and material capture function into a single integrated tool. The hollow interior chamber is built into the cutter body, allowing cut disc material to be captured during the cutting operation itself, eliminating the need for separate suction systems and reducing overall system complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The cutter is designed to perform multiple functions simultaneously: cutting disc material with the helixes while also capturing the cut material in the hollow interior chamber. This multi-functional design improves productivity by eliminating the need for separate material removal steps.

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

2Ease of operation

If cut material is removed separately by suction, then material removal is achieved, but the surgical process is complicated

Engineering Contradiction:
Improvesurgical simplicityVSAvoidmaterial removal efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The cutting and material capture functions are merged into one tool, allowing the surgeon to perform both operations simultaneously without switching between different instruments or adding complex suction systems, thereby simplifying the surgical procedure while maintaining high material removal efficiency.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If a cutter oscillates back and forth to effect cutting, then cutting action is achieved, but the tool is not effective at forming a bore hole

Engineering Contradiction:
Improvecutting versatilityVSAvoidbore hole formation capability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The tool can operate in multiple modes: it can oscillate back and forth for general cutting tasks, or it can rotate for bore hole formation. The hollow interior chamber works effectively in both modes, capturing material whether the tool is oscillating or rotating, thus providing versatility without sacrificing reliability in either cutting mode.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20260069286A1Vertebral disc cutter and method
Publication Date: 2026.03.12 GLOBUS MEDICAL INC
  • US20260069286A1 patent drawing
  • US20260069286A1 patent drawing

AI summary

An improved surgical tool including a cutter that will accumulate cut disc material during operation. One form can form a bore while another form can be used as a side cutter. The tool can be used as a rotary and/or reciprocating cutter.