Connection device

摘要

The invention relates to a connection device for connecting an implant system anchored in bone with an external prosthesis component, such as a limb prosthesis, prosthetic knee elbow or finger. The connection device includes a main housing, a first attachment portion arranged for attachment to the implant system and a second attachment portion arranged for attachment to the prosthesis component. It further includes a safety mechanism to protect the implant system from high mechanical forces, including rotational forces and or bending forces. According to one aspect of the invention the safety mechanism includes a rotational force release mechanism. This includes a first component including a ring unit having an inner surface with at least one depression and a second component includes at least one plunge unit urged into contact with said the depression by said spring means. According to another aspect the safety mechanism includes a bending force release mechanism with the second attachment portion being pivotable and having a spring loaded cam unit acting on a cam surface of the main hosing. According to a further aspect the safety mechanism is arranged to limit rotating forces as well as bending forces.

主权项

1. A connection device for connecting an implant system anchored in bone with an external prosthesis component, the connection device comprising:
a main housing, a first attachment portion arranged for attachment to the implant system, a second attachment portion arranged for attachment to the prosthesis component, and a safety mechanism to protect the implant system from high mechanical forces, the safety mechanism including a bending force release mechanism, the bending force release mechanism including a pivot pin arranged in said main housing, wherein the pivot pin defines a pivot axis, wherein the second attachment portion is mounted pivotable around said pivot axis, wherein the second attachment portion includes a spring-loaded cam unit acting on a cam surface on the main hosing, wherein the spring loaded cam unit is pivotable around said pivot axis, and wherein the bending force release mechanism operates solely for bending forces around said pivot axis.