摘要:
An artificial foot (1) comprising a resting element (2) that is to rest on the ground and is extended along a longitudinal extension axis (100), the resting element (2) being associated with an engagement body (8) for its connection to the body of the user; the resting element (2) defines a rear resting portion (5) and two front resting portions (3a, 4a) that are mutually spaced transversely to the longitudinal extension axis (100) and are adapted to be affected by forces, during use, independently of each other.
摘要:
A cover for a foot prosthesis comprises an opening at a top end of the cover, which extends into a cavity formed within the cover, wherein the cavity is configured to receive a prosthesis therein. A wall surrounds the cavity and has the shape of a natural human foot. The wall has an inner surface and an outer surface. The wall also has a top section, a bottom section and a rear section. The bottom section defines a sole area having a toe section, a heel section, and a metatarsal region, wherein the sole area is provided with varying levels of stiffness configured to induce a desired rollover from heel-to-toe in a lateral-to-medial direction.
摘要:
A prosthetic foot (1) incorporate a foot keel (2) and a calf shank (6) connected to the foot keel (2) to form an ankle joint area of the prosthetic foot (1). The foot keel (2) has forefoot (3) and hindfoot portions (4) and a relatively long midfoot portion (5) extending between and upwardly arched from the forefoot (3) and midfoot portions (5). The calf shank (6) includes a downward convexly curved lower end (7) which is attached at a portion thereof to the keel midfoot portion (5) by way of an adjustable fastener (8) arrangement. The adjustable fastener (8) arrangement permits adjustment of the alignment of the calf shank (6) and the foot keel (2) with respect to one another in the longitudinal direction of the foot keel (2) for tuning the performance of the prosthetic foot (1). The upwardly arched midportion of the foot keel (2), in addition to absorbing energy from vertical loading by expansion, can be formed with a spring which is compressed to absorb and expanded to return vertical load during use of the prosthetic in wide range of activities from walking to running and jumping.
摘要:
Prosthetic feet having a split feature are described. The prosthetic feet can include a plate-like upper element (32) and a plate-like lower element (52) connected to the upper element (32). The plate-like upper element (32) can include a split (43) that separates the upper element (32) into a medial blade (48) and a lateral blade (49). A portion of the split (43) can curve in a medial or lateral direction. Portions of the split (43) can also be straight, but askew, from a longitudinal axis of the upper element (32). The plate-like lower element (52) can also include a similar curved split (53) that separates the lower element (52) into a medial blade (58) and a lateral blade (59). These features, among others, are designed to provide multi-axial movement capabilities of a natural human foot and enhance roll-over properties while in use.
摘要:
A prosthetic foot (70) incorporates a foot keel (71) and a calf shank (72) connected to the foot keel to form an ankle joint area of the prosthetic foot. The foot keel has forefoot and hindfoot portions and an upwardly arched midfoot portion extending between the forefoot and midfoot portions. The calf shank includes a downward convexly curved lower end which is adjustably attached at a portion thereof to the foot keel by way of a releasable fastener arrangement which includes a coupling element (73) intermediate the calf shank and foot keel. The coupling element includes a resilient material forming a joint permitting subtalar joint-like motion of the prosthetic foot in gait.
摘要:
Embodiments of the invention relate to a prosthetic, orthotic, or robotic foot having at least two joints (8003, 8004). One joint is located in a position analogous to the human MTP joint (8003), and the other is located in a position analogous to the human subtalar joint (8004). Motions of these two joints are mechanically couples. Furthermore, these joints (8003, 8004) are created using “tensegrity” design principals, where connections between the compression members are made by a network of tension members. These tension members create axes of motion, and limitations on those axes of motion. Actuators or linear elastic “springs” are use to alter the torque/angular deflection response curve of these joints, so that the rollover profile of the human foot can be duplicated by this invention.
摘要:
A prosthetic foot (70) incorporates a foot keel (71) and a calf shank (72) connected to the foot keel to form an ankle joint area of the prosthetic foot. The foot keel has forefoot and hindfoot portions and an upwardly arched midfoot portion extending between the forefoot and midfoot portions. The calf shank includes a downward convexly curved lower end which is secured to the foot keel by way of a coupling element (73). The lower end of the calf shank extends upwardly, and initially anteriorly therefore into a reversely curved portion (75) of the calf shank leading to an upstanding upper end thereof.
摘要:
A prosthetic foot (1) incorporates a foot keel (2) and a calf shank (6) connected to the foot keel to form an ankle joint area of the prosthetic foot (1). The foot keel (2) has forefoot (3) and hindfoot (4) portions and a relatively long midfoot portion (5) extending between and upwardly arched from the forefoot (3) and midfoot hindfoot (4) portions. The calf shank (6) includes a downward convexly curved lower end (7) which is attached at a portion thereof to the keel midfoot portion (5) by way of an adjustable fastener (8) arrangement. The foot has biplanar motion capability and, in a preferred form, also has high low dynamic response characteristics. The adjustable fastener (8) arrangement permits adjustment of the alignment of the calf shank (6) and the foot keel (2) with respect to one another in the longitudinal direction of the foot keel (2) for tuning the performance of the prosthetic foot (1).
摘要:
Prosthetic feet and foot covers that provide a more natural appearance and improved performance are provided. A foot element for a prosthetic foot can extend from a heel end to a toe end and include a heel, arch, forefoot, and toe regions. The forefoot region can be wider than the arch and heel regions. The toe region can include a U-shaped cut out to define a big toe. Various features of the foot element can guide rollover of the foot through the big toe during use. A foot cover can be designed to receive a prosthetic foot including such a foot element. The foot cover can have a region of increased flexibility at a transition between the forefoot region and toe region. The foot cover can also have a padded area extending from the heel region across a lateral part of the arch region and forefoot region.