Bone Press Apparatus for Minimizing Bleeding in Iliac Crest Harvesting

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing methods for harvesting cancellous bone and marrow from the posterior superior iliac spine often result in increased bleeding and postoperative remote site pain due to deep coring and large cutouts, which are avoided by the Ray Iliac Procedure.

Innovation Solution

The Ray Iliac Procedure uses a bone press apparatus to create a small opening in the cortical bone, allowing for the extraction of cancellous bone and marrow through suction, followed by filtration and separation of the liquid and semi-solid components, utilizing a dual-lid system with a plunger to efficiently harvest and prepare the bone for use in an anterior cervical discectomy/fusion procedure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If deep coring and large cutouts are used to harvest cancellous bone and marrow, then the quantity of harvested bone and marrow is improved, but bleeding and postoperative remote site pain increase

Engineering Contradiction:

Improvequantity of harvested bone and marrowVSAvoidbleeding and postoperative remote site pain

Core Design Contradiction:

Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

The patent extracts only the necessary amount of cancellous bone and marrow through a small opening in the iliac crest using a coring device, avoiding the need for large cutouts or deep coring. This selective extraction maintains adequate bone quantity while minimizing tissue damage, bleeding, and postoperative pain.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent creates a localized small opening (approximately 1-1.5 cm) in the iliac crest rather than performing extensive harvesting. This localized approach concentrates the surgical intervention to a minimal area, preserving overall bone integrity and reducing harmful effects while still obtaining sufficient graft material.

Inventive Principle:

Principle #3Local quality

2Quantity of substance

If traditional bone harvesting methods are used, then adequate bone graft material is obtained, but procedural time and surgical complexity increase

Engineering Contradiction:

Improveadequate bone graft materialVSAvoidprocedural time

Core Design Contradiction:

Quantity of substanceVSLoss of time

Solution Approach 1:

The patent employs a universal small opening approach that serves multiple functions: it allows insertion of the coring device, extraction of bone and marrow, and minimal disruption to surrounding tissues. This multi-functional approach streamlines the procedure, reducing time and complexity while ensuring adequate graft material is obtained.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent segments the bone harvesting process into a controlled sequence: creating a small opening, inserting the coring device, extracting the core, and closing the opening. This segmented approach breaks down the procedure into manageable steps, reducing overall procedural time and surgical complexity compared to traditional methods.

Inventive Principle:

Principle #1Segmentation

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

This method reduces procedural time to less than 5 minutes, minimizes bleeding, and enhances healing by avoiding deep-coring, thereby providing a safer and more effective bone grafting solution for orthopedic surgeries.

Implementation Method 1

inserting a suction apparatus through the opening and extracting the loosened cancellous bone and bone marrow

Methodology Applied

Scientific EffectSuction: Suction

Implementation Method 2

a plunger with a press head configured to filter the extracted liquid contained in the first cup; filtering the extracted liquid by depressing the plunger of the second lid toward a bottom of the first cup

Methodology Applied

Scientific EffectFiltration: Filter (physical)

Data Source

PatentUS11589848B2Harvesting cancellous bone and marrow from posterior superior iliac spine using bone press

Publication Date: 2023.02.28 H & M INNOVATIONS LLC

AI summary

A method of harvesting cancellous bone and marrow from an individual's posterior superior iliac spine using a bone press apparatus includes: creating an opening in cortical bone of the posterior superior iliac spine; accessing through the opening and loosening for extraction cancellous bone and bone marrow; inserting a suction apparatus through the opening and extracting the loosened cancellous bone and bone marrow, the suction apparatus being attached to a first lid of a collection container, the first lid of the collection container having a suction port to which a suction source is connected; disconnecting the suction source from the suction port and replacing the first lid with a second lid having a suction port and a plunger with a press head; filtering the extracted liquid by depressing the plunger; and pouring the filtered liquid through the suction port of the second lid into another cup.