MICROFLUIDIC DEVICE
First Claim
1. A micro fluidic device, comprising a laminate of first and second films, one or each film including an integrally thermoformed structure such that the films together define an enclosed volume for fluid containment there between, characterized in that each film itself comprises a laminate of a relatively higher softening temperature thermoplastic polymeric material and with respect thereto, a relatively lower melt temperature thermoplastic polymeric material, the respective relatively low melt temperature thermoplastic polymeric materials of each film being melted together to attach the said first and second films together.
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Abstract
The present invention relates to a microfluidic device, comprising a laminate of first and second films, one or each film including an integrally thermoformed structure such that the films together define an enclosed volume (19) for fluid containment therebetween, characterised in that each film itself comprises a laminate of a relatively higher softening temperature thermoplastic polymeric material (14,17) and with respect thereto, a relatively lower melt temperature thermoplastic polymeric material (15,16), the respective relatively low melt temperature thermoplastic polymeric materials of each film being melted together to attach the said first and second films together. The invention further relates to a method of manufacturing the microfluidic device.
25 Citations
30 Claims
- 1. A micro fluidic device, comprising a laminate of first and second films, one or each film including an integrally thermoformed structure such that the films together define an enclosed volume for fluid containment there between, characterized in that each film itself comprises a laminate of a relatively higher softening temperature thermoplastic polymeric material and with respect thereto, a relatively lower melt temperature thermoplastic polymeric material, the respective relatively low melt temperature thermoplastic polymeric materials of each film being melted together to attach the said first and second films together.
- 25. A method of manufacturing a microfluidic device, the device comprising a laminate of first and second films, one or each film including a thermo-formed structure such that the films together define an enclosed volume for fluid containment there between, characterized by the steps of providing first and second films, each film itself comprising a laminate of a relatively high softening temperature thermoplastic polymeric material and with respect thereto, a relatively lower melt temperature thermoplastic polymeric material and combining said first and second films together by melting the relatively lower melt temperature materials together, characterized in that the melting step is performed at a lower temperature than the softening temperature of the relatively high softening temperature thermoplastic polymeric materials.
Specification