Prosthetic device for above-knee amputation

摘要

An ischial containment socket (10) having a frame (12) that is separate from, and is capable of being selectively secured to, an interface (11). The interface (11) has proximal and distal ends (14 and 15)and at least the proximal end (14) is open to receive the residual limb of an above-knee amputation. The interface (11) has four walls (16, 18, 19 and 20), and the dimension between the medial and lateral walls (18 and 19) is less than the dimension between the posterior and the anterior walls (16 and 20). The proximal ends of the adjacent posterior and medial walls (16 and 18) present a containment brim (30). The brim (30) is in the form of a flared offset wall (31) that extends generally outwardly and upwardly from the proximal ends of the adjacent posterior and medial walls (16 and 18). A reversely curved containment recess (32) is provided in the flared offset wall ( 31). The interface (11) has a peripheral discontinuity (26) along the longitudinal extent thereof which permits adjusting the peripheral dimension of the interface to facilitate fitting of the interface (11) to a residual limb. A cinch means (28) is employed to secure the desired peripheral dimension of the interface (11) properly to circumscribe the residual limb received therein. The frame (12) is located at the distal end (15) of the interface (11), and means (43 and 44) are provided selectively to secure the frame (12) to the interface (11) in the desired, relative position.