Autologous Bone Collection Apparatus with Integrated Filtration Screen

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Solution Overview

Problem

Current methods for collecting bone material during surgical procedures, such as spinal fusions, are cumbersome, messy, and complex, often requiring the separation of blood and bone on absorbable pads, which is inefficient and not easily scalable.

Innovation Solution

A bone collection apparatus comprising a collection trap with interchangeable covers, a suction port, and a plunger with a screen to separate blood from bone, allowing for efficient filtration and collection of autologous cancellous bone, using a container with ribs for secure lid attachment and a vent for air flow to facilitate blood transport.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional collection methods are used, then bone material can be collected, but the process is arduous, messy, and complicated requiring absorbable pads for separation

Engineering Contradiction:
Improveease of bone collectionVSAvoidcomplexity of collection process
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent combines the collection trap, filtration screen, and separation mechanism into a single integrated apparatus. The collection trap includes a built-in screen that filters and separates bone from blood during collection, eliminating the need for separate absorption pads and manual separation processes. This merging of functions directly reduces operational complexity and mess while maintaining collection effectiveness.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent introduces a plunger as an intermediary tool that presses the collected material against the screen, facilitating separation of bone from blood. This simple mechanical intermediary enables efficient separation without requiring complex equipment or multiple steps, directly addressing the ease of operation while managing the separation complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Quantity of substance

If conventional collection methods are used, then bone material can be collected, but larger volumes are difficult to collect efficiently

Engineering Contradiction:
Improvevolume of bone collectedVSAvoidefficiency of bone collection
Core Design Contradiction:
Quantity of substanceVSProductivity

Solution Approach 1:

The patent segments the collection process into distinct functional zones within the collection trap: an intake region for receiving bone-blood mixture, a filtration region with the screen for separation, and a collection region for storing separated bone. This segmentation allows for efficient handling of larger volumes by organizing the collection process into manageable functional sections, improving productivity while increasing collection capacity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent utilizes the vertical dimension within the collection trap by positioning the screen at the bottom and using the plunger to press material downward against it. This vertical arrangement allows for compact design while accommodating larger volumes of collected material, improving productivity without requiring excessive horizontal space.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Loss of substance

If conventional collection methods are used, then bone material can be collected, but significant bone loss occurs during separation

Engineering Contradiction:
Improvebone loss during separationVSAvoideffectiveness of blood-bone separation
Core Design Contradiction:
Loss of substanceVSReliability

Solution Approach 1:

The patent replaces the conventional mechanical absorption method with a filtration-based system using a screen. This substitution allows for more controlled and gentle separation that preserves bone integrity while effectively filtering blood, thereby reducing bone loss and improving the reliability of the separation process.

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

Solution Approach 2:

The patent employs a screen with controlled porosity that allows blood to pass through while retaining bone particles. This porous structure enables effective separation based on size differentiation, ensuring that bone material is not lost during the separation process while maintaining high reliability in blood-bone separation.

Inventive Principle:
Principle #31Porous materials

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

The apparatus effectively separates blood from bone, reducing mess and complexity, allowing for larger volumes of bone collection, ease of use, and minimal bone loss, making it suitable for various surgical operations like spinal fusions.

Implementation Method 1

a suction port and an intake port

Methodology Applied
Scientific EffectSuction: Suction

Implementation Method 2

The press head preferably includes a screen through which blood is filtered and by which bone is restrained from passing

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Implementation Method 3

The plunger is configured to separate blood from bone upon depressing of the plunger

Methodology Applied
Scientific EffectMechanical Pressure: Pressure Increase

Implementation Method 4

the second lid further comprises a vent that is configured to permit air to enter into an interior chamber of the container as a result of the application of suction via the suction port, thereby resulting in a flow for transporting blood products from the chamber of the container

Methodology Applied
Scientific EffectAir Flow: Convection

Data Source

PatentUS8920393B2Autologous surgical bone collection and filtration
Publication Date: 2014.12.30 HENSLER SURGICAL PRODUCTS LLC
  • US8920393B2 patent drawing
  • US8920393B2 patent drawing
  • US8920393B2 patent drawing

AI summary

Apparatus and methods are disclosed for use during surgical procedures for collecting autologous bone. A preferred bone collection assembly collects bone by compressing blood products away from trapped bone using a press. Such bone collecting assembly is easy and uncomplicated to use, and can be easily integrated into an operation where the need for collection and utilization of autologous bone exists.