The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 29, 2010
Filed:
Apr. 22, 2005
Douglas E. Rush, Draper, UT (US);
Nathan A. Williams, Heber City, UT (US);
Robert Edward Finlinson, Salt Lake City, UT (US);
Luder Mosler, Duderstadt, DE;
Martin Hillmann, Duderstadt, DE;
Richard Skiera, Vienna, AT;
Douglas E. Rush, Draper, UT (US);
Nathan A. Williams, Heber City, UT (US);
Robert Edward Finlinson, Salt Lake City, UT (US);
Luder Mosler, Duderstadt, DE;
Martin Hillmann, Duderstadt, DE;
Richard Skiera, Vienna, AT;
Otto Bock HealthCare LP, Minneapolis, MN (US);
Abstract
A vacuum pump having shock absorption and controlled rotation for use in an artificial limb. The pump includes a housing having a first chamber, and a shaft configured to be received by and to reciprocate within the first chamber, the housing and shaft forming a pump chamber. A piston may be coupled to the shaft and positioned within the pump chamber, and intake and exhaust ports are fluidly coupled to the pump chamber. Rotational structure is mounted with respect to the pump to provide controlled rotation of the shaft relative to the housing, and shock absorption structure is included within the pump to provide shock absorption for the shaft. Both a pneumatic spring and a mechanical spring element may be provided for the shock absorption structure. An optional adapter couples the shaft to the pylon of an integral pylon prosthetic foot.