Pixel Array Dermatome Scalpet for Fractional Skin Resection
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Solution Overview
Problem
Current surgical methods for managing skin laxity and burns often result in visible scarring, prolonged healing times, and limitations in skin graft harvesting, particularly due to the need for extensive incisions and donor site deformities.
Innovation Solution
The development of a Pixel Array Dermatome (PAD) system that enables fractional resection and skin grafting with a scalpet array and adherent membrane, allowing for repeated harvesting of skin grafts without visible scarring, by creating small, pixelated skin plugs that can be easily aligned and healed without disrupting the recipient site.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If traditional surgical methods are used for skin laxity management, then skin tightening is achieved, but visible scarring occurs
Solution Approach 1:
The patent divides the continuous skin resection into discrete fractional zones, creating multiple small treatment areas rather than one large incision. This segmentation allows skin tightening to be achieved while distributing the surgical impact across many small, less visible entry points, directly resolving the contradiction between effectiveness and scarring.
Solution Approach 2:
The invention applies different treatment intensities and patterns to different local zones of the skin. By creating a map of treatment zones with varying densities and patterns, the procedure achieves uniform overall tightening while maintaining local cosmetic quality, preventing visible scarring in any single area.
2Shape
If extensive incisions are made for skin resection, then skin tightening is achieved, but healing time is prolonged
Solution Approach 1:
By segmenting the surgical procedure into multiple small fractional incisions rather than one large continuous incision, the total wound surface area is dramatically reduced. This allows skin tightening to be achieved through cumulative effect of many small treatments, while each individual wound heals rapidly, significantly reducing overall healing time.
3Quantity of substance
If traditional skin graft harvesting is performed, then skin grafts are obtained, but donor site deformity occurs
Solution Approach 1:
The patent harvests skin grafts through multiple small fractional incisions distributed across the donor site rather than one large excisional incision. This segmentation allows sufficient skin graft quantity to be obtained while each small incision heals with minimal scarring, preventing cumulative donor site deformity.
Solution Approach 2:
The invention utilizes the fractional incision patterns to harvest skin grafts in a way that the remaining skin between incisions serves as the healing matrix. The small removed portions are discarded as graft material, while the majority of the donor site skin is preserved and recovers with minimal deformity.
4Quantity of substance
If repeated skin graft harvesting is attempted, then sufficient graft material is obtained, but donor site damage accumulates
Solution Approach 1:
The fractional incision pattern creates a sustainable harvesting method where each repetition of the procedure adds only minimal new damage. The segmented approach allows multiple harvesting sessions because the distributed small incisions heal efficiently, preventing accumulation of donor site damage even with repeated procedures.
Data Source
AI summary
Systems, instruments, and methods for minimally invasive procedures including one or more of fractional resection, fractional lipectomy, fractional skin grafting, fractional scar revision, and/or fractional tattoo removal are described. Embodiments include instrumentation comprising a scalpet assembly coupled to a carrier, and the scalpet assembly includes a scalpet array. The scalpet array includes one or more scalpets configured for fractional resection, fractional lipectomy, fractional skin grafting, fractional scar revision, and/or fractional tattoo removal. The system includes a vacuum component coupled to the scalpet assembly and configured to evacuate tissue from the a site. The carrier is configured to control application of a rotational force and/or a vacuum force to the scalpet assembly.