1
John E Cooper, Alun Wilcox: Artificial foot. J E Hanger & Company, Shoemaker and Mattare, January 26, 1988: US04721510 (85 worldwide citation)

A prosthetic foot comprises a hollow elastomeric cosmesis having a relatively large internal space, a keel of relatively stiff or rigid material, and a stiffener of glass reinforced plastics fitted between keel and instep region of the cosmesis. Front and rear snubbers extend from keel and front and ...


2
May Denis Ronald William: Symes ankle joint. J E Hanger & Company, Imirie Smiley & Linn, April 1, 1975: US3874004 (68 worldwide citation)

The invention provides an artificial ankle joint particularly suitable for patients who have undergone the Symes amputation. An effective ankle pivot center is provided at substantially the natural position by the use of a pair of links pivoted to points on the metal sole plate of an artificial foot ...


3
May Denis Ronald William: Knee joints for leg irons. J E Hanger & Company, Imirie Smiley & Linn, August 26, 1975: US3901223 (32 worldwide citation)

The invention provides a knee joint for a leg iron comprising a longer forward link and a shorter rearward link pivoted between lugs at the base of a thigh iron and lugs at the head of a shin iron. A spur on the forward link contacts an abutment formed on the shin iron both at full extension and ful ...


4
Denis R W May: Adjustable friction joint for an artificial knee. J E Hanger & Company, Pollock VandeSande and Priddy, March 27, 1979: US04145766 (28 worldwide citation)

The angular movement of a knee joint of the kind comprising a four bar linkage is controlled by the frictional engagement of a shaft, pivoted at one end to one of the links, with a pivotable plastics bush located between the ends of another link. The plastics bush may be tightened around the shaft t ...


5
Mohammad Barkhordar, James M Nightingale, Denis R W May: Artificial hands. J E Hanger & Company, Pollock VandeSande and Priddy, March 17, 1987: US04650492 (27 worldwide citation)

An artificial hand comprises a palm member and thumb and finger members movable towards and away from one another by an actuator. A cosmesis covering the actuator has a touch sensor in a cavity of the cosmesis that deforms on contact with an object. The cavity is connected via a conduit with a micro ...


6
Denis Ronald William May: Alignment device for artificial limbs. J E Hanger & Company, Imirie Smiley & Linn, September 28, 1976: US03982278 (25 worldwide citation)

The invention provides an alignment device for use between a tube socket and a weight-bearing element of an artificial limb in which a desired angular relationship set by jacking screws and maintained by a controlled degree of friction between concentric part-spherical surfaces is maintainable despi ...


7
Denis R W May: Artificial limbs. J E Hanger & Company, Pollock Vande Sande & Priddy, December 1, 1981: US04302856 (22 worldwide citation)

The angular relation of a Sach foot to a shin may be adjusted during assembly to provide a desired heel height so that one type of Sach foot may be stocked for each shoe size and adapted for different heights of heel. The connecting bolt passes through a rotatable trunnion transverse to the length o ...


8
Denis R W May: Knee joint for artificial limbs. J E Hanger & Company, Pollock Vande Sande & Priddy, July 10, 1984: US04458367 (22 worldwide citation)

A knee joint for an artificial limb comprises a knee member having a part spherical convex lower surface pivoted about an axis to a knee housing having a part spherical concave upper surface conforming to the curvature of the knee member. A spring loaded plunger directly connected to a release cable ...


9
John E Cooper: Alignment device for artificial limbs. J E Hanger & Company, Shoemaker and Mattare, March 1, 1988: US04728336 (19 worldwide citation)

A first member of an artificial limb such as a tube socket has a generally rhombic flange formed with throughholes grouped into an anterior-posterior pair and a medial/lateral pair spaced at 90 degree intervals about the axis of socket. The lower face of the flange carries a ball formation of a ball ...


10
John E Cooper: Shift device for a prosthetic limb. J E Hanger & Company, Shoemaker and Mattare, November 28, 1989: US04883494 (17 worldwide citation)

A shift device for a prosthetic limb comprises: first and second plates having adjoining flat faces in sliding contact. Spaced parallel ribs on an outer face of each plate define a slideway. Guides in the slideways of the first and second plates enable the plates to move generally at right angles to ...