Pattenred film for forming fluid-filled blister, microfluidic blister, and kit and method of forming
US10046893B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2017 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Apr 11, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB81C2203/037
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A patterned thermoplastic elastomer (TPE) film for fabricating a liquid-filled blister, has a blister-sized cavity in fluid communication with a microfluidic channel via a gating region. The gating region is defined by a relief pattern that has at least one of the following: at least 5 separate compartments defined by respective recesses in the first side, each of the recesses bounded by walls that separate the compartments from each other, the recess, or the channel; at least 5 walls defined by the patterning of the first side, the walls separating a plurality of compartments from each other, the recess, or the channel, wherein the walls have a mean thickness that is less than a mean height, and each pair of walls has a mean separation greater than twice the mean thickness; an array of separate compartments bounded by walls defined by the patterning of the first side that collectively define a polygonal regular planar tiling with at least 50% of the surface area of the gating region being open spaces; and a focusing region in fluid communication with the cavity, and a seal region having at least one wall defined by patterning of the film, wherein the at least one wall separates th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.