JONSSON, GRIMUR,GUNNARSSON, BJARNI,HALLDORSSON, OLAFUR,SANDAHL, DAVID
申请号：
CA2864208
公开号：
CA2864208C
申请日:
2013.02.13
申请国别(地区):
CA
年份:
2019
代理人:
摘要：
A vacuum assisted suspension system is used to increase or maintain negativepressure orvacuum in a sealed socket cavity as a socket and prosthetic limb attachmentmechanism.The system includes a vacuum pump (2) having a housing (8) that defines anenclosedspace to receive a fluid. At least one wall of the housing (8) and at leastone movable wall(10) define a fluid compartment (12). The system includes a compressiontransferelement (15) connected to the at least one movable wall (10) and connected toaprosthetic foot (6). The compression transfer element (15) causes the at leastone movablewall (10) of the fluid compartment (12) to move and increase the volume of thefluidcompartment (12) in response to a compressive force on the prosthetic foot (6)to draw influid from the prosthetic socket (4). In the absence of a compressive force,the volume ofthe fluid compartment (12) decreases thereby expelling fluid out of the fluidcompartment(12).
