Abstract: Secondary batteries and methods of manufacture thereof are provided. A secondary battery can comprise an offset between electrode and counter-electrode layers in a unit cell. Secondary batteries can be prepared by removing a population of negative electrode subunits from a negative electrode sheet, the negative electrode sheet comprising a negative electrode sheet edge margin and at least one negative electrode sheet weakened region that is internal to the negative electrode sheet edge margin, removing a population of separator layer subunits from a separator sheet, and removing a population of positive electrode subunits from a positive electrode sheet, the positive electrode sheet comprising a positive electrode edge margin and at least one positive electrode sheet weakened region that is internal to the positive electrode sheet edge margin, and stacking members of the negative electrode subunit population, the separator layer subunit population and the positive electrode subunit population.

Abstract: An articulated grip pad is disclosed which includes a vertical supporting member that has a generally spherical bottom end. The crutch also includes a gripping pad having a bore. The generally spherical end of the vertical support is securely received into the bore.

Abstract: An articulated grip pad is disclosed which includes a vertical supporting member that has a generally spherical bottom end. The crutch also includes a gripping pad having a bore. The generally spherical end of the vertical support is securely received into the bore.

Abstract: An articulated grip pad is disclosed which includes a vertical supporting member that has a generally spherical bottom end. The crutch also includes a gripping pad having a bore. The generally spherical end of the vertical support is securely received into the bore.

Abstract: An articulated grip pad is disclosed which includes a vertical supporting member that has a generally spherical bottom end. The crutch also includes a gripping pad having a bore. The generally spherical end of the vertical support is securely received into the bore.

Abstract: An articulated grip pad is disclosed which includes a vertical supporting member that has a generally spherical bottom end. The crutch also includes a gripping pad having a bore. The generally spherical end of the vertical support is securely received into the bore.

Abstract: An ergonomic collapsible crutch for providing assistance with ambulatory movement of a user, the crutch including a supporting member having an underarm support surface and a hand grip portion, a gripping pad disposed remotely from the underarm support surface generally along a vertical axis and connected to the supporting member to provide stability and grip on surfaces of a walking environment, and a hand grip attached to the hand grip portion of the supporting member so that the handgrip extends from the supporting member at an angle from the vertical axis ranging from about 85° to about 60° and from about 95° to about 120°. The ergonomic collapsible crutch may also include a shock absorbing device and buttons for adjusting the height of the crutch as well as the position of the hand grip. The hand grip may also be ergonomically contoured for improved use by a user.

Abstract: An ergonomic forearm crutch featuring an adjustable, ergonomic hand grip, a shock absorbing device and an ergonomically molded forearm cuff with integrated cuff hinge. The ergonomic forearm crutch is fully adjustable to meet the functional and ergonomic needs of crutch users.

Abstract: An ergonomic collapsible crutch that may have a shock absorbing device, used to facilitate walking. The crutch has only one supporting member in place of two. The supporting member is ergonomically designed. The hand grip is configured to reduce stress on a patient. The crutch has a length adjustment and a collapsibility feature.

Abstract: An ergonomic collapsible crutch for providing assistance with ambulatory movement of a user, the crutch including a supporting member having an underarm support surface and a hand grip portion, a gripping pad disposed remotely from the underarm support surface generally along a vertical axis and connected to the supporting member to provide stability and grip on surfaces of a walking environment, and a hand grip attached to the hand grip portion of the supporting member so that the handgrip extends from the supporting member at an angle from the vertical axis ranging from about 85° to about 60° and from about 95° to about 120°. The ergonomic collapsible crutch may also include a shock absorbing device and buttons for adjusting the height of the crutch as well as the position of the hand grip. The hand grip may also be ergonomically contoured for improved use by a user.

Abstract: An ergonomic collapsible crutch that may have a shock absorbing device, used to facilitate walking. The crutch has only one supporting member in place of two. The supporting member is ergonomically designed. The hand grip is configured to reduce stress on a patient. The crutch has a length adjustment and a collapsibility feature.