Koorosh Y Naghshineh

US Patent:

7585285, Sep 8, 2009

Filed:

Apr 1, 2004

Appl. No.:

10/815376

Inventors:

Arnis Pone - Kalamazoo MI, US
John D. Stahl - Vicksburg MI, US
Koorosh Naghshineh - Portage MI, US

International Classification:

A61F 5/00
A61F 13/00
A61F 13/06
A61F 5/37
A61B 19/00

US Classification:

602 27, 602 5, 602 13, 602 23, 602 61, 602 65, 128846, 128869, 128882

Abstract:

A novel ankle gapping device includes a lower leg engaging apparatus, a foot engaging apparatus, and a biasing member disposed between the lower leg engaging apparatus and the foot engaging apparatus. The leg engaging apparatus is adapted to securely engage a user's leg such that the leg engaging apparatus will remain stationary when the biasing member exerts an upward force thereon. The foot engaging apparatus is contoured to fit the user's foot. In a particular embodiment, the biasing member is a pneumatic biasing member, such as an inflatable tube that is actuated by a pump. As the pump provides compressed air (or some other fluid) to the biasing member, the pressure inside the biasing member increases, causing an increase in the volume of the biasing member. This pressure and volume increase exerts an upward force via the leg engaging apparatus to the lower leg, and a downward force via the foot engaging apparatus to the foot. The forces applied to the leg and the foot cause separation of the ankle joint, allowing the synovial fluid to flow over the articulating surfaces of the bones of the joint.

US Patent:

8211045, Jul 3, 2012

Filed:

Aug 6, 2009

Appl. No.:

12/462642

Inventors:

Arnis Pone - Kalamazoo MI, US
John D. Stahl - Vicksburg MI, US
Koorosh Naghshineh - Portage MI, US

International Classification:

A61F 5/37
A61F 13/00
A61B 19/00
A61F 5/00
A61F 13/06

US Classification:

602 27, 603 5, 603 12, 603 13, 603 23, 603 60, 603 61, 603 65, 128846, 128869, 128882

Abstract:

A novel ankle gapping device includes a lower leg engaging apparatus, a foot engaging apparatus, and a biasing member disposed between the lower leg engaging apparatus and the foot engaging apparatus. The leg engaging apparatus is adapted to securely engage a user's leg such that the leg engaging apparatus will remain stationary when the biasing member exerts an upward force thereon. The foot engaging apparatus is contoured to fit the user's foot. In a particular embodiment, the biasing member is a pneumatic biasing member, such as an inflatable tube that is actuated by a pump. As the pump provides compressed air (or some other fluid) to the biasing member, the pressure inside the biasing member increases, causing an increase in the volume of the biasing member. This pressure and volume increase exerts an upward force via the leg engaging apparatus to the lower leg, and a downward force via the foot engaging apparatus to the foot. The forces applied to the leg and the foot cause separation of the ankle joint, allowing the synovial fluid to flow over the articulating surfaces of the bones of the joint.

US Patent:

54106079, Apr 25, 1995

Filed:

Sep 24, 1993

Appl. No.:

8/126493

Inventors:

V. Bradford Mason - Palo Alto CA
Koorosh Naghshineh - Cupertino CA

Assignee:

SRI International - Menlo Park CA

International Classification:

G01K 1116

US Classification:

381 71

Abstract:

An apparatus for reducing noise radiated from a complex vibrating surface includes: a motion sensor responsive to a region of the vibrating surface that contributes to a noise field in a fluid medium; a controller having a substantially fixed transfer function, where the controller is responsive to an electrical motion signal produced by the motion sensor and is operative to produce an electrical antinoise signal; and an acoustic driver responsive to the electrical antinoise signal and operative to produce and an acoustic antinoise field that is substantially 180. degree. out-of-phase with the original noise field. The antinoise field reduces the original noise field by the process of destructive interference without substantially affecting the motion of the vibrating surface. If the medium is air, the acoustic driver is preferably a loudspeaker which is operated so that its cone velocity is approximately equal to the ratio of a noise-source area weighting to a cone area weighting multiplied by the velocity of the noise source. A method for reducing noise radiated from a complex vibrating surface in accordance with the present invention includes: dividing the vibrating surface into a plurality of regions, each of which contributes to a noise field in a fluid medium; and, for each region of the vibrating surface, developing an antinoise field that effectively reduces the original noise field associated with that region.