Surgery – Truss – Pad
Patent
1995-02-07
1998-02-03
Smith, Ruth S.
Surgery
Truss
Pad
128733, 128782, 482114, 482115, A61B 511
Patent
active
057133700
ABSTRACT:
A method is described of assessment of a physiological state of a body joint of an animal, wherein a first body portion is connected to a second body portion and is moveable relative to the second body portion through muscular contraction. The method includes the steps of fixing the first body portion with a stationary support, restraining the second body portion with a movable restraining member capable of motion within a plane, applying a first selected level of resistance to the motion of the movable restraining member which is constant regardless of the force applied to the movable restraining member, and contracting the muscle in an effort to produce maximum relative movement within the plane. The rate of change of position of the second body portion is then measured during a plurality of contracting steps. Subsequently, a second selected level of resistance is applied to the motion of the movable restraining member which is constant regardless of the force applied to the movable restraining member, the muscle is again contracted in a maximal effort, and a second rate of change of position of the second body portion is measured. A system for assessment of the physiological state of a body joint is also described, including a stationary support to fix the first body portion, a movable restraining member to receive the second body portion and providing at least first and second levels of constant resistance to relative movement within the plane, and a device for measuring rate of change of position upon maximal exertion.
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