Mark S Hunter

US Patent:

20130053984, Feb 28, 2013

Filed:

Jun 28, 2010

Appl. No.:

13/381744

Inventors:

Mark Hunter - Marina Del rey CA, US
Laith Al-Kazaz - West Yorkshire, GB
John Stephen Haggas - West Yorkshire, GB
Ian Hamilton - North Yorkshire, GB

Assignee:

RSL STEEPER GROUP LIMITED - Kent

International Classification:

A61F 2/42

US Classification:

623 64

Abstract:

An artificial joint with two degrees of freedom has two rotary motors that move the joint in one degree of freedom when operated in respective senses of rotation and move the joint in the other degree of freedom when one of the motors is reversed. The movement depends on balancing the operation of the motors, which are controlled by a microprocessor. Sensors on the joint are connected to the microprocessor in a closed-loop feedback. A prosthetic device includes a tendon received in one end of a slot in a movable member, whereby movement of the tendon moves the movable member. A prosthesis has two parts moveable relative to one another, an actuator, and a user control. A transducer connected to the control and the actuator provides signals indicating movement effected by the actuator. A prosthesis cover includes a silicone laminate and a reinforcing liner.

US Patent:

20210251779, Aug 19, 2021

Filed:

Jun 7, 2019

Appl. No.:

16/973180

Inventors:

- Los Angeles CA, US
Mark HUNTER - Los Angeles CA, US

International Classification:

A61F 2/58
A61F 2/70

Abstract:

The present invention provides A prosthetic device () having an anchor portion () in combination with a base portion () which is connected to said anchor portion (). An elongate digit () is coupled to a first portion of a pivot connection () mounted on the base portion (), whilst a second portion of a pivot connection () is mounted on the proximal end () of the digit () and is connected to the first portion () of the pivot connection (). A linear actuator () within the elongate digit () has a first portion () secured to the elongate digit () for movement therewith and a second portion () remote therefrom and axially movable relative thereto and is operable with said pivot connection () to thereby to cause pivotal movement of said digit () around said pivot connection () upon axial movement of said second portion () of said linear actuator ().

US Patent:

20170014245, Jan 19, 2017

Filed:

Mar 13, 2014

Appl. No.:

14/207635

Inventors:

Mark Hunter - Marina del Rey CA, US

International Classification:

A61F 2/58

Abstract:

The invention relates to a mechanical finger comprising, a knuckle, a proximal element, a rod, a motor, a motor driven screw and a distal element. The knuckle has a first and second pivot. The proximal element knuckle end is coupled to the first pivot. The proximal element also has a third pivot at a variable longitudinal distance from the first pivot. The rod has a near end pivotally coupled to the second pivot and a far end pivotally coupled to the third pivot. A motor is coupled to and referenced to the proximal element. A screw is driven to change the distance between the third pivot and the first pivot in response to a command from a controller to the motor. A distal element is pivotally coupled to the proximal element. The distal element rotates with respect to the proximal element in response to a change in the variable distance between the third pivot and the first pivot.