Embedded Files
A Newly Improved Anti-Aging Device
A Newly Improved Anti-Aging Device
Micro-Needling System
Spring 2020 MAE 156B Sponsored Project
University of California, San Diego
Background
Background
The aim of the micro-needling system is to reduce a patient's wrinkles and heal any scars on the surface of the skin. This process is done by penetrating the skin which ultimately causes injury to the dermis layer. Collagen will therefore be produced as these micro-injuries cause the skin to make new collagen-rich tissue. Micro-needling is a minimally invasive surgery that is used as a treatment for skin rejuvenation.
The aim of the micro-needling system is to reduce a patient's wrinkles and heal any scars on the surface of the skin. This process is done by penetrating the skin which ultimately causes injury to the dermis layer. Collagen will therefore be produced as these micro-injuries cause the skin to make new collagen-rich tissue. Micro-needling is a minimally invasive surgery that is used as a treatment for skin rejuvenation.
Today, this process is being applied to a wide range of applications that includes skin aging, acne scars, and post-traumatic scars. There have several devices that have been approved for aesthetic use with various methods to deliver energy, mono- and bipolar being the most common. Studies have been demonstrated that monpolar radio frequency is efficient for skin tightening With monopolar and bipolar radiofrequencies, high energies can be delivered. In regards to the structure of the micro-needles, the solid needles are made from silicone and stainless steel which are widely utilized within drug delivery. On the other hand, hollow micro-needles are created to transport cosmetics into the skin.
Today, this process is being applied to a wide range of applications that includes skin aging, acne scars, and post-traumatic scars. There have several devices that have been approved for aesthetic use with various methods to deliver energy, mono- and bipolar being the most common. Studies have been demonstrated that monpolar radio frequency is efficient for skin tightening With monopolar and bipolar radiofrequencies, high energies can be delivered. In regards to the structure of the micro-needles, the solid needles are made from silicone and stainless steel which are widely utilized within drug delivery. On the other hand, hollow micro-needles are created to transport cosmetics into the skin.
Figure 1: How micro needling penetrates the skin during the operation.
Objectives
Objectives
The motivation of this project is to optimize a previously created system that consists of micro hollow needles which would essentially allow plastic surgeons to deliver cosmeceuticals to the skin while carrying a micro-needling surgery simultaneously. The newly developed design will be a replacement to what is currently being used which is primarily a device that comprises solid needles which does not allow for the passage of any cosmetic fluid. The hollow needles will be developed so they do not break when penetrating the skin and have the ability to eventually apply radio frequency causation and activation of components that have to be part of the system. Indeed, with our optimized design, the prototype will be able to be further developed in order to generate radio frequencies either separately or concurrently. The design will allow placement of a sterile cartridge or an attachment of a sterile syringe that includes the desired agents to "infuse".
Figure 2: Current existing device known as Dr. Pen.
Requirements
Requirements
To produce a satisfactory product, a list of general requirements was formed. Safety was the first priority, followed by function.
The storage tank of the cartridge must be able to hold up to 5 mL cosmeceuticals.
Hollow needles must move axially at specified frequencies controlled by the driver pen.
Hollow needles must be able to withstand a reasonable amount of force during the operation without causing any deformations.
All materials used within the cartridge must be disposable and sterilizable.
Entire device must be handled by one operator during the surgery.
Final Design
Final Design
Figure 3 represents our final design using SolidWorks. The cartridge checks off the major priorities required by the sponsors. It is unique in that it has a Luer Lock port of entry, a reduced size compared to its competitors, and can be manufactured at a very low cost. Figure 4 demonstrates our physical prototype after being outsourced and assembled before attached to the microneedling pen while Figure 5 displays Figure 4 attached to the Dr. Pen microneedling pen for testing purposes.
Figure 3: Final CAD design with labelled parts.
Figure 4: Physical prototype of final design.
Figure 5: Final physical prototype attached to Dr. Pen Microneedling Pen.
Figure 6: Final physical prototype with needle array attached.
From our testing, our prototype was successfully able to deliver fluid through the storage tank during oscillation. The assembly of the microneedling cartridge was very simple, and it was outsourced using very little cost so having effective mass production is a very high possibility for the future of this product. To conduct our testing, our sponsors recommended using water as it has the same fluid properties as the cosmeceuticals utilized during the surgery.
See guidelines for creating your webpage and review examples of good pages.
Page updated
Report abuse