Implantable Interbody Device with Integrated Negative Pressure Manifold

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Solution Overview

Problem

Current negative pressure therapy devices for bone healing are prone to dislodgment post-operatively, necessitating invasive procedures for reattachment, which is risky and inconvenient for patients, and lacks non-invasive methods for verifying device placement.

Innovation Solution

An implantable interbody device with a plurality of openings serving as a manifold, allowing for the application of reduced or negative pressure through a releasably attached tube, eliminating the need for subsequent invasive procedures and enabling easy removal without radiation exposure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a separate manifold device is used for negative pressure therapy, then negative pressure can be applied to the surgical site, but the device can become dislodged post-operatively requiring invasive reattachment procedures

Engineering Contradiction:
Improvedevice retentionVSAvoiddevice removal and reattachment
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent combines the interbody fusion device and the negative pressure manifold into a single integrated unit. The manifold features are built directly into the interbody device structure, eliminating the need for separate manifold placement and reducing dislodgment risk. This merging ensures that when the interbody device is implanted, the negative pressure capability is already present and secured at the surgical site.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The interbody device is designed to perform multiple functions: providing structural support for fusion and delivering negative pressure therapy simultaneously. The integrated design allows a single device to serve both mechanical stabilization and therapeutic purposes, eliminating the need for separate manifold implantation and reducing the number of procedural steps required.

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

2Reliability

If a separate manifold device is used for negative pressure therapy, then negative pressure can be applied to the surgical site, but additional invasive procedures are required for verification and reattachment

Engineering Contradiction:
Improvedevice retentionVSAvoidradiation exposure and surgical risks
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

By integrating the manifold into the interbody device, the patent eliminates the need for separate verification procedures. The single integrated device can be verified through standard post-operative imaging protocols without requiring additional invasive procedures to locate or assess a separate manifold component.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent removes the separate manifold component from the system, extracting the negative pressure functionality and embedding it within the interbody device. This elimination of the separate manifold removes the source of the problem that would require additional invasive verification and reattachment procedures.

Inventive Principle:
Principle #2Taking out (Extraction)

3Reliability

If a tube is permanently fixed to the interbody device, then negative pressure application is secure, but the tube cannot be removed without invasive procedures

Engineering Contradiction:
Improvenegative pressure applicationVSAvoidtube removal
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The patent employs a dynamic connection system between the tube and interbody device that allows the connection state to change from secured (during therapy) to removable (after therapy). The releasable connection mechanism enables the tube to be firmly attached when negative pressure application is needed, yet can be easily detached when therapy is complete, adapting to different treatment phases.

Inventive Principle:
Principle #15Dynamics

4Ease of operation

If the interbody device has integrated manifold features, then negative pressure therapy can be applied without separate manifold implantation, but the device structure becomes more complex

Engineering Contradiction:
Improvesingle procedure implantationVSAvoidintegrated manifold structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent integrates manifold features into the interbody device structure, combining two previously separate components into one. While this increases structural complexity, it eliminates the need for separate manifold implantation procedures, reducing overall procedural complexity and improving ease of operation. The manifold channels and openings are incorporated into the existing interbody device geometry.

Inventive Principle:
Principle #5Merging (Combining)

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 solution ensures continuous negative pressure application to the surgical site, promoting bone healing and growth without the risks associated with additional surgeries, and allows for safe and easy use of the therapy.

Implementation Method 1

The suction apparatus is typically in communication with the sealant layer, and functions so as to reduce the amount of pressure present underneath the sealant layer

Methodology Applied
Scientific EffectSuction: Suction

Implementation Method 2

An implantable interbody device with a plurality of openings serving as a manifold, allowing for the application of reduced or negative pressure through a releasably attached tube

Methodology Applied
Scientific EffectNegative pressure therapy: Pressure Gradient

Data Source

PatentUS10888643B2Negative pressure interbody device, system, and method
Publication Date: 2021.01.12 ZINK THOMAS
  • US10888643B2 patent drawing
  • US10888643B2 patent drawing
  • US10888643B2 patent drawing

AI summary

An implantable interbody negative pressure device that permits reduced or negative pressure therapies to be applied to a portion of a patient's body. More specifically, the implantable interbody negative pressure device comprises a body portion having a plurality of openings in fluid communication with both an internal passageway and a vacuum source, and that serves as a manifold and permits reduced or negative pressure therapy to be applied to a surgical site, such as a wound or damaged bone. The application of the reduced or negative pressure to the body improves circulation and the disposal of cellular waste, and promotes bone growth and healing.