This is a self sealing, airless, and metered dose dispensing system. The bag doesn’t leak product when squeezed, but when the button is pressed…it dispenses the same amount of product each time (or at least close). It was designed to deliver skincare products and drugs.
Sadly the company is no longer in business and this is probably one of the last prototypes sitting around. As a testament to its storage ability I think this one is almost 9 years old!
Here’s the original press release announcing the product:
Poly-D’s MDS patented pump and valve dispensing mechanism allows for easy, one-handed dispensing of an exact amount of product with viscosities up to 50,000cps.
The vacuum-based technology means the pump forces it out of the pouch (98% of it) in a neat and clean manner, and because it is a vacuum-based technology, it works in any orientation.
The MDS valve only opens when the button is pressed and then seals tight upon release, eliminating the need for caps and closures.
It can be used as a stand-alone dispensing package or integrated into applicators or custom-designed devices.