[특허]Method of producing a sealing means in a microfluidic structure and a microfluidic structure comprising such sealing mea

[미국특허] Method of producing a sealing means in a microfluidic structure and a microfluidic structure comprising such sealing mea 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B32B-003/28 B28B-005/00 D01D-005/20
출원번호	US-0090119 (1993-07-22)
우선권정보	SE-0000392 (1991-02-08)
국제출원번호	PCT/SE92/00062 (1992-02-04)
§371/§102 date	19930722 (19930722)
국제공개번호	WO-9214132 (1992-08-20)
발명자 / 주소	hman Ove (Uppsala SEX)
출원인 / 주소	Pharmacia Biosensor AB (Uppsala SEX 03)
인용정보	피인용 횟수 : 106 인용 특허 : 0

초록 ▼

A leakage-proof sealing means is provided in a microfluidic channel assembly of the type having first and second flat surface members which when pressed against each other define a microfluidic channel system between them, by recessing a sealing groove structure into the flat surface of the first member, and applying against the first member a counter mould surface having an aligned groove and/or ridge structure of smaller width than the sealing groove structure to define a mould cavity therewith, into which a fluid sealing material is introduced and hardened to form a resilient seal, the top part of which projects above the edges of the sealing groove structure while leaving sufficient space in the upper part thereof to permit complete accommodation of the top part of the resilient seal when compressed by the second assembly member.

대표청구항 ▼

A method for producing a leakage-proof sealing means in a microfluidic channel assembly comprising first and second flat surface members which when pressed against each other define at least part of a microfluidic channel system between them, which method comprises the steps of (i) recessing at least one groove structure into a flat surface of the first flat surface member; (ii) providing a counter mould, the mould surface of which has at least one groove structure or at least one ridge structure, said structure or structures having an extension corresponding to, but a smaller width than, the groove structure or structures of the first member; (iii) applying the counter mould against the first member to define a mould cavity or cavities by the groove structure or structures of the first member with the counter mould portions comprising said groove or ridge structure or structures; (iv) introducing a fluid sealing material, capable of hardening to form a resilient sealing structure, into the mould cavity or cavities; and (v) after hardening of the fluid sealing material, removing the mould from the first member; the top part of the mould cavity or cavities being configured in dependence of the shrinkage or expansion properties of the fluid sealing material whereby the resulting moulded resilient sealing structure projects above groove edges of the first member while leaving sufficient space in an upper part of said groove to permit complete accommodation therein of a deformed top part of the resilient sealing structure when compressed by the second member. A microfluidic system device comprising a first member of a substantially rigid material having a substantially flat surface and designed to be applied to a substantially flat surface of a second member of a substantially rigid material, one or both of the surfaces of said members being provided with a first groove structure wherein a corresponding fluid channel system is defined between the members when applied to each other, characterized in that said first member includes at least one second groove structure having a resilient sealing means moulded into it for sealing off parts of said fluid channel system from adjacent areas, a top portion of said sealing means projecting above the surface of said first member and being spaced from at least one side edge of said second groove structure wherein the top portion is capable of being substantially accommodated in the groove space when it is deformed by the application of said two members against each other.

이 특허를 인용한 특허 (106) 인용/피인용 타임라인 분석

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[미국특허] Method of producing a sealing means in a microfluidic structure and a microfluidic structure comprising such sealing mea 원문보기

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[미국특허] Method of producing a sealing means in a microfluidic structure and a microfluidic structure comprising such sealing mea 원문보기

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