Bone Graft Delivery Instrument with Segmented Barrel and Plunger

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Solution Overview

Problem

Current methods for applying autograft material in spinal fusion surgeries are cumbersome and time-consuming, prolonging operating room time and anesthesia duration due to manual or forceps-based packing of milled bone tissue into the target area.

Innovation Solution

A system comprising a delivery instrument with a barrel, end cap, and plunger, designed for accurate and efficient delivery of bone graft material, allowing for easy attachment of a collection device and bone mill, facilitating the processing and delivery of autograft material.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual or forceps-based packing of milled bone tissue is used, then the bone graft material can be delivered to the target area, but the process is cumbersome and time-consuming, prolonging operating room time and anesthesia duration

Engineering Contradiction:

Improvedelivery speed of bone graft materialVSAvoidoperating room time

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The delivery system is divided into separate functional components: a collection device for gathering bone graft material, a barrel for storage and transport, and a plunger for delivery. This segmentation allows each component to be optimized independently and enables rapid assembly and operation during surgery

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system is designed to be pre-assembled and pre-filled with bone graft material before the surgical procedure. The collection device can be attached to a bone mill in advance to process and fill the barrel, so that during surgery only the delivery portion needs to be operated, significantly reducing operative time

Inventive Principle:

Principle #10Preliminary action

2Ease of operation

If manual packing methods are used, then bone graft material can be placed in the target area, but the process is cumbersome and requires significant manual manipulation time

Engineering Contradiction:

Improveease of bone graft deliveryVSAvoidanesthesia duration

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The plunger mechanism is designed to be self-actuating through simple manual compression of the barrel, eliminating the need for complex mechanical actuators or multiple operators. The system serves itself by converting simple user input into effective delivery action, reducing both operational complexity and time requirements

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The collection device, barrel, and plunger are merged into a single integrated delivery system that can be operated as one unit. This consolidation eliminates the need for separate tools and steps, simplifying the operation to a single cohesive action that reduces both ease of operation requirements and time consumption

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS20250064600A1System and instruments for delivering bone graft material

Publication Date: 2025.02.27 MORAN SOLMY

AI summary

A system and instruments for delivery of bone graft material to a patient during an open surgery, such as in spinal fusion surgeries, in a simple, convenient and time-efficient manner are provided. The system comprises a collection device for collecting milled tissue from the patient, and a delivery instrument for delivering the autograft tissue to the surgical site.