Optical Sensor Delivery System for Irregular Wound Mapping

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Solution Overview

Problem

Current treatments for burns and large body surface area wounds are inadequate due to the need for multiple surgical procedures, inability to cover irregular wounds, and lack of precision in delivering cells, leading to suboptimal healing and increased morbidity.

Innovation Solution

A delivery system that uses a control module to generate a map of the patient's bodily surface and operate a dispensing system to precisely deliver cells and compositions based on scanned data, incorporating a three-dimensional scanner and printheads to create tissue layers that match the wound's geometry.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If standard-sized skin substitutes are produced through large-scale manufacturing processes, then production efficiency is improved, but the ability to cover irregular wounds deteriorates

Engineering Contradiction:
Improveproduction efficiencyVSAvoidability to cover irregular wounds
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The skin substitute is divided into multiple standard-sized modules that can be individually produced through large-scale manufacturing. Each module contains living skin cells on a biocompatible substrate. These modular units can then be assembled and customized to match irregular wound geometries, combining mass production efficiency with adaptability to complex wound shapes.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention transitions from producing single fixed-size skin substitutes to creating a library of standard-sized modules that can be arranged in two-dimensional patterns. This modular approach allows the treatment area to be scaled and shaped according to the specific wound geometry, enabling coverage of irregular surfaces while maintaining standardized manufacturing processes for each module.

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

2Reliability

If multiple surgical procedures are used to treat large body surface area burns, then treatment thoroughness is improved, but treatment time and patient morbidity worsen

Engineering Contradiction:
Improvetreatment thoroughnessVSAvoidtreatment time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

Multiple skin substitute modules are prepared in advance through standardized manufacturing processes before the surgical procedure. The patient's wound area is mapped and measured prior to surgery, allowing pre-planning of module arrangement. During surgery, the pre-prepared modules are simply assembled and implanted, eliminating the need for multiple procedures while maintaining comprehensive coverage.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention combines multiple skin substitute modules into a single comprehensive treatment procedure. Rather than performing separate surgeries for different body areas or sequential grafting, all necessary modules are prepared and implanted during one surgical session, merging what would traditionally require multiple procedures into a single intervention.

Inventive Principle:
Principle #5Merging (Combining)

3Speed

If cell spraying technology is used to deliver cells, then delivery speed is improved, but delivery precision deteriorates

Engineering Contradiction:
Improvedelivery speedVSAvoiddelivery precision
Core Design Contradiction:
SpeedVSManufacturing precision

Solution Approach 1:

The invention replaces the mechanical spraying system with a controlled placement system. Instead of relying on aerosolized cell delivery, the skin substitutes are prepared with cells already organized on structured biocompatible substrates. During implantation, these pre-organized modules are placed directly onto the wound bed, ensuring precise cell positioning while maintaining efficient delivery through standardized surgical protocols.

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

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 system enables precise, single-procedure delivery of cells and compositions to irregular wounds, promoting effective healing, reducing morbidity, and potentially offering indefinite shelf life and minimal storage requirements.

Implementation Method 1

an optical sensor configured to detect data used to create a map of a patient bodily surface

Methodology Applied
Scientific EffectLight reflection: Reflection

Data Source

PatentUS20230372637A1Delivery system
Publication Date: 2023.11.23 WAKE FOREST UNIVERSITY HEALTH SCIENCES INC
  • US20230372637A1 patent drawing
  • US20230372637A1 patent drawing
  • US20230372637A1 patent drawing

AI summary

Provided herein is a delivery system, including: (a) an optical sensor configured to detect data to create a map of a patient bodily surface; and (b) a dispenser operatively associated with the optical sensor and configured to deliver compositions (optionally including cells) to the patient bodily surface based upon the data or map. Methods of forming a tissue on a patient bodily surface of a patient in need thereof are also provided, as are methods, systems and computer program products useful for processing patient bodily surface data.