Modeling the mechanics of elevated vacuum systems in prosthetic sockets.

ABSTRACT: Elevated vacuum (EV) is suggested to improve suspension and limb volume management for lower limb prosthesis users. However, few guidelines have been established to facilitate configuration of EV sockets to ensure their safe and proper function. A benchtop model of an EV socket was created to study how prosthetic liner tensile elasticity, socket fit, and socket vacuum pressure affect liner displacement and subsequent pressure on the residual limb. A domed carbon fiber layup was used to represent an EV socket. Inserts were used to simulate various air gaps between the socket and liner. Various prosthetic liner samples were placed under the carbon fiber layup. Liner displacement and the corresponding pressure change underneath the liner were measured as vacuum was applied between the liner s

SUBMITTER: Youngblood RT 

PROVIDER: S-EPMC7954222 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature