发明名称 |
Fluid pumping apparatus for use with a removable fluid pumping cartridge |
摘要 |
The present invention involves, in some embodiments apparatus, such as dialysis apparatus, and methods for pumping fluid. Certain embodiments comprise a housing enclosing a pump drive assembly for actuating at least one pump on a removable fluid pumping cassette. The housing may comprise a door connected to the housing for enclosing an installed cassette in the housing upon closure of the door. The pump drive assembly may comprise a mating block configured for operative association with an installed cassette and to may be configured to permit a sealing engagement with an installed cassette upon closure of the door. To facilitate sealing, certain embodiments of the door include a movable compression plate configured to exert a compressive force on an installed cassette against the mating block when the door is in a closed position. |
申请公布号 |
US9115709(B2) |
申请公布日期 |
2015.08.25 |
申请号 |
US201414204080 |
申请日期 |
2014.03.11 |
申请人 |
DEKA Products Limited Partnership |
发明人 |
Gray Larry B.;Lanigan Richard J. |
分类号 |
A61M1/16;F04B45/06;A61M5/142;F04B43/067;F04B49/06;F04B45/00;G01M3/26;A61M1/36;A61M5/172;G01M3/32;G05D16/20;A61M5/14;A61M5/145;A61M39/22 |
主分类号 |
A61M1/16 |
代理机构 |
Wolf, Greenfield & Sacks, P.C. |
代理人 |
Wolf, Greenfield & Sacks, P.C. |
主权项 |
1. An apparatus for pumping fluid comprising:
a housing enclosing a pump drive assembly for actuating at least one pump on a removable fluid pumping cassette, when the pumping cassette is installed in the housing; a door connected to the housing for enclosing the installed cassette in the housing upon closure of the door; the pump drive assembly comprising a mating block configured for operative association with the installed cassette; the mating block configured to permit a sealing engagement with the installed cassette upon closure of the door; wherein the door includes a movable compression plate configured to move toward the cassette and exert a compressive force on the installed cassette against the mating block when the door is in a closed position; and wherein the door further comprises an expandable bladder adjacent the compression plate and configured to be pressurized against the compression plate to generate a compressive force on the installed cassette; and further comprising a controller configured to control expansion of the bladder and to receive a signal from one or more sensors to detect whether the door is in a closed position. |
地址 |
Manchester NH US |