Microfluidic devices
The microfluidic device addresses fluid leakage and chip damage by ensuring surface flatness and recess fitting, distributing stress and maintaining liquid-tightness, thus preventing deformation and breakage.
JP7885723B2Active Publication Date: 2026-07-07SHIN ETSU CHEMICAL CO LTD +1
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- SHIN ETSU CHEMICAL CO LTD
- Filing Date
- 2023-05-10
- Publication Date
- 2026-07-07
Smart Images
Figure 0007885723000002 
Figure 0007885723000003 
Figure 0007885723000001
Abstract
SOLUTION: A microfluidic device includes: a microfluidic chip with a flow path formed inside; a cover and a base, each in contact with a surface of the microfluidic chip; a chip holder including a fixture for securing the microfluidic chip to the cover and the base; and a connector with one end in contact with a surface of the microfluidic chip and the other end serving as a fluid supply or discharge port. The flatness of the surfaces of the microfluidic chip is 50 μm or less, and the planarity of the surfaces of the cover and base is 50 μm or less.EFFECT: Even when a fluid sample is fed into a microfluidic chip at a high pressure, tensile stress and compressive stress applied to the microfluidic chip are effectively dispersed in the chip holder, and a load on the microfluidic chip itself is reduced, and thus the microfluidic chip is hardly deformed, and damage to the microfluidic chip is suppressed. In addition, liquid tightness at a connection portion with the flow path of the microfluidic chip is high, and a liquid leak hardly occurs.SELECTED DRAWING: Figure 1
Need to check novelty before this filing date? Find Prior Art