Small form factor muscular-skeletal parameter measurement system

摘要

At least one embodiment is directed to an insert for measuring a parameter of the muscular-skeletal system. The insert can be temporary or permanent. In one embodiment, the insert is prosthetic component for a single compartment of the knee. The insert comprises a support structure and a support structure respectively having an articular surface and a load bearing surface. The height of the insert is less than 10 millimeters. At least one internal cavity is formed when support structures are coupled together for housing electronic circuitry, sensors, and the power source. The cavity can be sterilized through a port. A membrane is between the port and the cavity. A sterilization gas permeates the membrane for sterilizing cavity. The membrane reduces the ingress of solids and liquids to the cavity.

主权项

1. A small form factor measurement system for measuring loading applied by a muscular-skeletal system comprising: a first support structure; a sensor array overlying the first support structure wherein load bearing surfaces of each sensor of the sensor array are approximately co-planar; a load plate overlying the sensor array, wherein the load plate is configured to move under loading within the housing; and a second support structure coupled to the first structure to form a housing wherein at least one alignment feature of the first support structure extends from the first support structure through an opening in the load plate and couples to the second support structure, wherein the load plate is within the housing isolated from an external environment.