[특허]Luer activated device with minimal fluid displacement

Baxter International Inc.; Baxter Healthcare S.A.

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Luer activated device with minimal fluid displacement

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16K-051/00
미국특허분류(USC)	251/149.8; 251/149.6; 604/249; 604/905
출원번호	UP-0876630 (2007-10-22)
등록번호	US-7753338 (2010-08-02)
발명자 / 주소	Desecki, Vincent C.
출원인 / 주소	Baxter International Inc. Baxter Healthcare S.A.
대리인 / 주소	K&L Gates LLP
인용정보	피인용 횟수 : 53 인용 특허 : 250

초록

A luer activated device includes an inlet adapted to receive a male luer, an outlet associable with a fluid flow system, and a flow path defined therebetween. The inlet receives a resealable valve element having an aperture adapted to receive the male luer. The valve element is adapted such that a male luer inserted into the aperture will open fluid flow through the inlet without causing a substantial change in fluid displacement.

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The invention claimed is: 1. A medical valve for the bi-directional transfer of fluid, comprising: a valve housing having an inlet adapted to receive a male luer, an outlet, and a flow path defined therebetween; and a valve element closing the inlet of the valve housing, said valve element including a first and second normally closed resealable apertures, the first aperture having a higher opening pressure than the second aperture, the first and second apertures surrounding a space adapted to receive a male luer to allow fluid to be transferred between the male luer and the flow path, wherein there is substantially no fluid displacement when at least a portion of the male luer is inserted into or removed from the space, and wherein the second aperture is opened via pressure from a fluid introduced at the fluid outlet. 2. The medical valve of claim 1, which includes a septum closing the inlet of the valve housing, the septum defining the first aperture, and a seal spaced apart from the septum, the seal defining the second aperture. 3. The medical valve of claim 2, wherein the seal is spaced apart from the septum by a collapsible wall. 4. The medical valve of claim 2, wherein the seal is a cap fitted to a wall extending from the septum. 5. The medical valve of claim 2, wherein the seal is spaced apart from the septum such that the seal is unpenetrated by the male when fully inserted into the valve housing. 6. The medical valve of claim 1, wherein the higher opening pressure is multiple times greater than the lower opening pressure. 7. The medical valve of claim 1, wherein the second aperture closes automatically upon completion of fluid transfer through the medical valve. 8. The medical valve of claim 7, the valve element configured to ease removal of the male luer after automatic closing of the second aperture. 9. The medical valve of claim 8, wherein the valve element is lubricated to ease male luer removal. 10. The medical valve of claim 8, wherein the valve element is textured to ease male luer removal. 11. A medical fluid valve for the bi-directional transfer of fluid, comprising: a valve housing having an inlet adapted to receive a male luer, an outlet, and a flow path defined therebetween; and a valve element including (i) a septum sealing the inlet, the septum defining a first aperture, (ii) a seal defining a second aperture, and (iii) a chamber wall separating the seal from the septum, the chamber wall constructed and arranged such that the male luer when fully received within the valve housing opens only the first aperture. 12. The medical fluid valve of claim 11, wherein the chamber wall is collapsible to allow the wall to expand and unfold upon insertion of the male luer. 13. The medical fluid valve of claim 11, wherein the chamber wall is stretchable to allow the male luer when fully received within the valve housing to open only the first aperture. 14. The medical fluid valve of claim 11, wherein the chamber wall is elongated such that the male luer when fully received within the valve housing opens only the first aperture. 15. The medical fluid valve of claim 11, wherein seal is radially sized to receive the entire tip of the male luer. 16. The medical fluid volume of claim 11, wherein the seal is configured to allow the second aperture to be opened via pressure of fluid introduced at the valve housing outlet. 17. A medical fluid valve for the bi-directional transfer of fluid, comprising: a valve housing having an inlet adapted to receive a male luer, an outlet, and a flow path defined therebetween; and a valve element including (i) a septum sealing the inlet, the septum defining a first aperture, (ii) a seal defining a second aperture, and (iii) a chamber wall separating the seal from the septum, the chamber wall constructed and arranged to allow the seal to be contacted by the male luer when fully inserted without piercing the seal. 18. The medical fluid valve of claim 17, wherein the septum, seal and chamber wall define a male luer receiving space that allows fluid to be transferred between the male luer and the flow path, and which at least substantially prevents fluid displacement when the male luer is inserted into or removed from the space. 19. The medical fluid valve of claim 18, wherein the seal is configured to allow the second aperture to be opened via pressure of fluid residing within the flow path. 20. A medical valve for the bi-directional transfer of fluid, comprising: a valve housing having an inlet adapted to receive a male luer, an outlet, and a flow path defined therebetween; and a valve element closing the inlet of the valve housing, said valve element including a first and second normally closed resealable apertures, the first aperture having a higher opening pressure than the second aperture, the first and second apertures surrounding a space adapted to receive a male luer to allow fluid to be transferred between the male luer and the flow path, wherein there is substantially no fluid displacement when at least a portion of the male luer is inserted into or removed from the space, and wherein the second aperture closes automatically upon completion of fluid transfer through the medical valve. 21. A medical valve for the bi-directional transfer of fluid, comprising: a valve housing having an inlet adapted to receive a male luer, an outlet, and a flow path defined; a valve element closing the inlet of the valve housing, said valve element including a first and second normally closed resealable apertures, the first aperture having a higher opening pressure than the second aperture, the first and second apertures surrounding a space adapted to receive a male luer to allow fluid to be transferred between the male luer and the flow path, wherein there is substantially no fluid displacement when at least a portion of the male luer is inserted into or removed from the space; and which includes a septum closing the inlet of the valve housing, the septum defining the first aperture, and a seal spaced apart from the septum, the seal defining the second aperture, and wherein the seal is spaced apart from the septum by a collapsible wall.

이 특허에 인용된 특허 (250)

이 특허를 인용한 특허 피인용횟수: 53

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특허 상세정보

Luer activated device with minimal fluid displacement

초록

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이 특허에 인용된 특허 (250)

이 특허를 인용한 특허 피인용횟수: 53

IPC 상위 출원인

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IPC 상세정보(version : 201201)

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특허 상세정보

Luer activated device with minimal fluid displacement

초록

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이 특허에 인용된 특허 (250)

이 특허를 인용한 특허 피인용횟수: 53

IPC 상위 출원인

상세정보조회

원문조회

IPC 상세정보(version : 201201)

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