Hydraulic actuator apparatus for a surgical table

US6886200B2 · kind B2 · utility

Assignee

• Hill-Rom Services, Inc. · US

Inventors

• William M. Blyshak · Milan, US
• Greg Figel · Mason, US
• Gary S. Siegle · Cincinnati, US
• Jon C. Tekulve · Milan, US
• Mark E. Haufler · Cincinnati, US
• Paul R. Weil · Lawrenceburg, US
• Stephen R. Schulte · Gibsonia, US
• David C. Newkirk · Cadiz, US
• David W. Hornbach · Brookville, US
• Richard L. Borders · Cincinnati, US

Key dates

• Filing date: Jan 25, 2002
• Grant date: May 3, 2005
• Expiry date: Jan 25, 2022

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F15B2211/7121
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A patient support is provided comprising a support surface, a base, and a lift assembly positioned to support the support surface above the base. The lift assembly includes an actuator configured to adjust the height of the support surface. The actuator includes a housing formed to include first and second cylinders. The actuator further includes a first piston positioned in the first cylinder and a second piston positioned in the second cylinder. The first piston includes a first fluid passage therein. The second piston includes a second fluid passage therein.