Bone Scraping Blade and Spacer Layout for Particle Collection

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing bone harvesting tools are not sufficiently effective, comfortable, or cost-effective for scraping and collecting bone particles, and they complicate manufacturing processes.

Innovation Solution

A surgical tool with a handle, collection chamber, blade, and spacer design that allows for efficient bone particle collection without special processing, featuring a flexible stem and locking mechanism for safe handling and easy manufacturing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If existing bone harvesting tools are used, then bone particles can be collected, but the devices are not sufficiently effective, comfortable, or cost-effective and complicate manufacturing processes

Engineering Contradiction:

Improvebone particle collection efficiencyVSAvoidmanufacturing process complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The device is divided into distinct functional modules: a collection chamber for gathering bone particles, a stem for structural support and force transmission, and a blade for scraping. This segmentation allows each component to be optimized independently for its specific function while simplifying the overall manufacturing process, as each part can be produced separately and assembled.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention extracts and isolates the essential functions of bone harvesting into a streamlined design that removes unnecessary complexities from existing tools. By focusing only on the core functions (scraping with blade, collecting in chamber, transmitting force through stem), the design achieves simplicity in manufacturing while maintaining effectiveness.

Inventive Principle:

Principle #2Taking out (Extraction)

2Productivity

If existing bone harvesting tools are used, then bone particles can be collected, but the devices are not cost-effective

Engineering Contradiction:

Improvebone particle collection efficiencyVSAvoidproduction cost

Core Design Contradiction:

ProductivityVSEase of manufacture

Solution Approach 1:

The surgical tool is designed as a disposable instrument that can be manufactured at low cost using simple processes. The straightforward geometry of the collection chamber, stem, and blade allows for efficient mass production through conventional manufacturing methods, making the device economically viable for single-use applications while ensuring high collection efficiency.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The device combines multiple functions into a single integrated tool: the blade scrapes bone particles, the collection chamber gathers and contains them, and the stem provides structural integrity. This multi-functionality eliminates the need for multiple separate instruments, reducing overall production costs and improving cost-effectiveness while maintaining high productivity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Manufacturing precision

If the collection chamber requires special processing or adaptation, then precise particle collection is achieved, but manufacturing becomes slower and more expensive

Engineering Contradiction:

Improveparticle collection precisionVSAvoidmanufacturing speed

Core Design Contradiction:

Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The collection chamber is designed with specific local geometric features optimized for particle collection, such as a tapered entrance and internal contours that guide bone particles toward the collection area. These localized quality enhancements achieve precise collection without requiring complex overall processing or adaptation of the entire chamber, allowing for fast and economical manufacturing.

Inventive Principle:

Principle #3Local quality

4Volume of moving object

If the blade is placed too close to the collection chamber end, then compact design is achieved, but particle introduction becomes difficult

Engineering Contradiction:

Improvedevice compactnessVSAvoidparticle introduction ease

Core Design Contradiction:

Volume of moving objectVSEase of operation

Solution Approach 1:

The blade is positioned at the distal end of the stem, radially oriented relative to the collection chamber's longitudinal axis. This spatial arrangement in a different dimension allows the blade to effectively scrape and direct particles into the chamber opening without requiring excessive axial distance, maintaining device compactness while ensuring easy particle introduction through the opening.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS12582416B2Surgical instrument for scraping and collecting bone particles

Publication Date: 2026.03.24 META TECH SRL

AI summary

A surgical tool (10) for scraping and collecting bone particles, comprising: —a handle (20) provided with a handgrip (21); —a collection chamber (25) having an end proximal to the handgrip (21) and a free distal end; —a stem (30) at least partially arranged inside the collection chamber (25); —a blade (40) fixed to a front end (32) of the stem (30), wherein the blade (40) protrudes radially from the stem (30) and is axially arranged outside the collection chamber (25) near the distal end thereof; and—a spacer (50) interposed between a rear face (42) of the blade (40) and the distal end of the collection chamber (25), wherein the spacer (50) defines a passage opening (500) for introducing the bone particles scraped by the blade (40) into the collection chamber (25), maintaining at a predetermined non-zero axial distance, for at least a circumferential tract thereof, the rear face (42) of the blade (40) from the distal end of the collection chamber (25).