公开(公告)号：WO2016032609A1

公开(公告)日：2016-03-03

申请号：PCT/US2015/037620

申请日：2015-06-25

Applicant: OTTO BOCK HEALTHCARE LP

Inventor： HINES, Peter H.

IPC: A61F2/68 ,  A61F2/60 ,  A61F2/74 ,  A61F2/80

CPC classification number: A61F2/80 ,  A61F2/60 ,  A61F2/68 ,  A61F2002/5006 ,  A61F2002/5072 ,  A61F2002/5084 ,  A61F2002/742 ,  A61F2002/745 ,  A61F2002/747 ,  A61F2002/748 ,  A61F2002/802 ,  A61F2002/805 ,  A61F2002/807

Abstract: Methods and apparatus are disclosed relating to a mechanical vacuum socket pump (100) used to establish a vacuum in a socket of an artificial limb. In one case, the pump includes a housing (102) within which two pistons (104, 106) coaxially reciprocate. A surface of each of the pistons is linked hydraulically, such that driving one piston causes movement of the other piston through a hydraulic chamber. One piston is also linked to a pneumatic chamber such that movement of that piston draws air from a limb socket or expels air to the atmosphere upon movement of the piston's pneumatic surface. The surface area of the hydraulic surface of this piston is significantly less than the surface area of the pneumatic surface, so a small volumetric displacement of hydraulic fluid may cause a large displacement of air. Thus, the pump efficiently pumps air with minimal compression and extension of the pump as a whole.

Abstract translation: 公开了涉及用于在假肢的插座中建立真空的机械真空插座泵（100）的方法和装置。 在一种情况下，泵包括壳体（102），其中两个活塞（104,106）同轴地往复运动。 每个活塞的表面液压连接，使得驱动一个活塞导致另一个活塞通过液压室的移动。 一个活塞还连接到气动室，使得该活塞的运动在活塞的气动表面移动时从空气支座吸出空气或排出空气。 该活塞的液压表面的表面积显着小于气动表面的表面积，所以液压油的体积位移很小可能导致空气的大排量。 因此，泵以整体上泵的最小压缩和延伸有效地泵送空气。