Tonometer transducer positioning system

A sensor assembly for sensing physiological parameters of a subject comprising:

• a housing;
• means for mounting the housing on a subject;
• a sensor means for detecting a physiological parameter of the subject;
• a reference surface, means for mounting the reference surface in the housing;
• sensor mounting means for mounting the sensor means for movement relative to the reference surface;
• means for moving the sensor mounting means relative to the reference surface, said moving means comprising a fluid pump and a stepping motor for driving the fluid pump;
• and
• means for controlling the stepping motor to cause the sensor mounting means to move relative to the reference surface.

A sensing assembly for sensing a physiological parameter of a subject comprising:

• a housing;
• a sensor for detecting a physiological parameter of a subject;
• means for movably mounting the sensor in the housing, said movable mounting means comprising means defining a fluid cavity;
• an upstanding rod mounted in the cavity;
• a movable sensor mounting member slidably received on the rod;
• and
• biasing means for biasing the sensor mounting member in a retracted position relative to the housing.

Apparatus for mounting a physiological sensor to a supporting structure comprising:

• a sensor;
• a sensor support member;
• means mounting the sensor on the sensor support member;
• a flexible printed circuit for providing electrical connections to the sensor;
• means for providing electrical and mechanical attachment of the flexible printed circuit to the sensor;
• a guard member attached to said sensor support member, for protecting the sensor mounting means and a portion of said flexible printed circuit;
• a clamping means for clamping said flexible printed circuit between said guard member and said sensor support member;
• and
• a fold or undulation in said flexible printed circuit, said fold being located between said attachment means and said clamping means.