Combined Delivery Needle and Elevator for Allograft Tissue

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Solution Overview

Problem

Current methods for delivering micronized allograft tissue in surgery require additional instruments for leveling, which complicates the process and increases the need for multiple instrument exchanges.

Innovation Solution

A combined delivery needle/elevator/paddle instrument that allows both the injection and leveling of micronized allograft tissue directly at the surgical site, eliminating the need for separate tamp or elevator instruments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a separate tamp or elevator/paddle instrument is used for leveling micronized allograft tissue, then the leveling function is provided, but the device complexity and number of instrument exchanges increase

Engineering Contradiction:
Improveleveling functionVSAvoidnumber of instruments
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent combines the delivery needle and elevator/paddle into a single integrated instrument. The elevator/paddle is attached to the distal end of the delivery needle, allowing both delivery and leveling functions to be performed with one instrument rather than requiring separate instruments for each function.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The combined instrument serves multiple functions: it can deliver micronized allograft tissue through the needle and subsequently level the delivered material using the attached elevator/paddle. This multi-functional design eliminates the need for instrument exchanges between delivery and leveling steps.

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

2Ease of operation

If additional tamp or elevator/paddle instruments are used for leveling, then the leveling function is achieved, but the procedural time and efficiency are reduced

Engineering Contradiction:
Improveleveling capabilityVSAvoidprocedural efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

By merging the delivery needle and elevator/paddle into one instrument, the patent eliminates the time required to remove the delivery needle and insert a separate leveling instrument. The combined instrument allows continuous operation from delivery to leveling without procedural interruption.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated design enables continuous useful action by allowing the surgeon to deliver material and then immediately level it with the same instrument still in position, maintaining continuous engagement with the surgical site and eliminating idle time between steps.

Inventive Principle:
Principle #20Continuity of useful action

3Adaptability or versatility

If multiple separate instruments are used for delivery and leveling, then each function is specialized, but the overall process complexity increases

Engineering Contradiction:
Improvefunctional specializationVSAvoidinstrumentation complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent creates a universal instrument that performs both delivery and leveling functions. The delivery needle provides specialized injection capability while the attached elevator/paddle provides specialized leveling capability, with both functions integrated into a single versatile instrument that adapts to multiple surgical tasks.

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

Data Source

PatentUS9855393B2Delivery needle with elevator/paddle for micronized allograft tissue
Publication Date: 2018.01.02 ARTHREX INC
  • US9855393B2 patent drawing
  • US9855393B2 patent drawing
  • US9855393B2 patent drawing

AI summary

Techniques, kits and a delivery instrument for providing a material at a defect repair site. The instrument is a combined delivery needle/elevator/paddle that includes a delivery needle and a paddle/elevator tip attached to the end of the needle and around the most distal opening of the needle. The combined needle/elevator/paddle instrument allows both delivery (insertion or injection) of the material/mixture as well as leveling/flattening of the delivered material. The mixture/material may be micronized allograft tissue such as BioCartilage® and the surgical site may be a defect site such as a microfracture site or cartilage defect.