公开(公告)号：US08652332B2

公开(公告)日：2014-02-18

申请号：US12685315

申请日：2010-01-11

Applicant: Rohit N. Karnik ,  Jongho Lee

Inventor： Rohit N. Karnik ,  Jongho Lee

IPC: B01D39/00 ,  B01D53/22

CPC classification number: B01D61/364 ,  B01D65/102 ,  B01D2325/08 ,  B01D2325/38 ,  C02F1/44 ,  C02F1/441 ,  C02F1/444 ,  C02F1/445 ,  C02F1/448 ,  C02F2103/08 ,  Y02A20/131

Abstract: Method and devices for filtering liquid are provided that rely on pressure difference to filter liquid. In one embodiment, a device for filtering liquid includes a feed chamber, a permeate chamber, and a porous membrane that is at least partially hydrophobic and has one or more pores configured to be permeable to vapor. A pressure of a liquid substance in the feed chamber is increased such that vapor of the liquid substance is transported from the feed chamber to the permeate chamber. The resistance of flow in a hydrophilic layer of the membrane can be controlled to make the membrane defect-tolerant. In another embodiment, a second porous membrane is further included and the second porous membrane is spaced apart from the first porous membrane. Various methods for filtering liquid are also provided.

Abstract translation: 提供过滤液体的方法和装置，其依赖于压力差来过滤液体。 在一个实施例中，用于过滤液体的装置包括进料室，渗透室和至少部分疏水并且具有构造成可透过蒸气的一个或多个孔的多孔膜。 进料室中的液体物质的压力增加，使得液体物质的蒸汽从进料室输送到渗透室。 可以控制膜的亲水层中的流动阻力以使膜具有缺陷。 在另一个实施方案中，还包括第二多孔膜，并且第二多孔膜与第一多孔膜间隔开。 还提供了用于过滤液体的各种方法。

公开(公告)号：US20100176057A1

公开(公告)日：2010-07-15

申请号：US12685315

申请日：2010-01-11

Applicant: Rohit N. Karnik ,  Jongho Lee

Inventor： Rohit N. Karnik ,  Jongho Lee

IPC: B01D61/36 ,  B01D69/10 ,  B01D69/12

CPC classification number: B01D61/364 ,  B01D65/102 ,  B01D2325/08 ,  B01D2325/38 ,  C02F1/44 ,  C02F1/441 ,  C02F1/444 ,  C02F1/445 ,  C02F1/448 ,  C02F2103/08 ,  Y02A20/131

Abstract: Method and devices for filtering liquid are provided that rely on pressure difference to filter liquid. In one embodiment, a device for filtering liquid includes a feed chamber, a permeate chamber, and a porous membrane that is at least partially hydrophobic and has one or more pores configured to be permeable to vapor. A pressure of a liquid substance in the feed chamber is increased such that vapor of the liquid substance is transported from the feed chamber to the permeate chamber. The resistance of flow in a hydrophilic layer of the membrane can be controlled to make the membrane defect-tolerant. In another embodiment, a second porous membrane is further included and the second porous membrane is spaced apart from the first porous membrane. Various methods for filtering liquid are also provided.

Abstract translation: 提供过滤液体的方法和装置，其依赖于压力差来过滤液体。 在一个实施例中，用于过滤液体的装置包括进料室，渗透室和至少部分疏水并且具有构造成可透过蒸汽的一个或多个孔的多孔膜。 进料室中的液体物质的压力增加，使得液体物质的蒸汽从进料室输送到渗透室。 可以控制膜的亲水层中的流动阻力以使膜具有缺陷。 在另一个实施方案中，还包括第二多孔膜，并且第二多孔膜与第一多孔膜间隔开。 还提供了用于过滤液体的各种方法。

公开(公告)号：US20130331792A1

公开(公告)日：2013-12-12

申请号：US13980503

申请日：2012-01-18

Applicant: Jeffrey M. Karp ,  Woo Kyung Cho ,  Bryan Laulicht ,  James A. Ankrum ,  Rohit N. Karnik ,  Robert Langer

Inventor： Jeffrey M. Karp ,  Woo Kyung Cho ,  Bryan Laulicht ,  James A. Ankrum ,  Rohit N. Karnik ,  Robert Langer

IPC: A61B17/20 ,  A61M37/00

CPC classification number: A61B17/205 ,  A61M37/0015 ,  A61M2037/0046 ,  A61M2037/0053 ,  A61M2037/0061

Abstract: The present disclosure provides devices and uses thereof. A devices disclosed herein comprises one or more tips, wherein the one or more tips are designed and constructed to initiate penetration by the device; and one or more protrusions in a region adjacent to each tip. In some embodiments, one or more protrusions can be constructed and arranged so that the required penetration force is reduced as compared with that observed for an otherwise identical device lacking the one or more protrusions. Additionally or alternatively, one or more protrusions can be constructed and arranged such that the required pull-out force is increased as compared with that observed for an otherwise identical device lacking the one or more protrusions.

Abstract translation: 本公开提供了其设备及其用途。 本文公开的装置包括一个或多个尖端，其中所述一个或多个尖端被设计和构造成启动所述装置的穿透; 以及与每个尖端相邻的区域中的一个或多个突起。 在一些实施例中，可以构造和布置一个或多个突起，使得与对于缺少一个或多个突起的其它相同的装置观察到的相比，所需的穿透力减小。 附加地或替代地，可以构造和布置一个或多个突起，使得与对于缺少一个或多个突起的其它相同的装置观察到的相比，所需的拉出力增加。