Adjustable measurement device

A device, comprising:

• a housing configured to attach to a wearable band that is wearable by a subject, the housing comprising:
• a first chamber bordered by a first wall and a second wall, wherein the first wall comprises a sensor window;
• a second chamber bordered by the first wall and a third wall;
• a slot in the housing between the first chamber and the second chamber, the slot bordered by the second wall and the third wall and the slot extends at least partially around a width of the wearable band, the slot comprising:
• an open end and a closed end, the closed end defined by the first wall;
• and
• a depth ranging from one quarter of an inch to two inches;
• a thickness ranging from one thirty-second of an inch to one quarter of an inch;
• a closed end;
• and
• an open end opposite the closed end,
• wherein:
• the first chamber is separated from the slot by the second wall;
• the second chamber is separated from the slot by the third wall;
• and
• the first chamber is disposed on an opposite side of the slot from the second chamber;
• a processor disposed within the first chamber or the second chamber;
• an elastic coupling member within the first chamber against the second wall;
• a physiological sensor, wherein:
• the physiological sensor is electronically coupled to the processor;
• the physiological sensor is coupled to the elastic coupling member and aligned with the sensor window;
• and
• a force exerted by the elastic coupling member on the physiological sensor is in a direction through the sensor window;
• and
• a clamp coupled to the housing adjacent to the open end of the slot, wherein the thickness of the slot with the clamp in the closed position is less than the thickness of the slot with the clamp in an opened position.

A device, comprising:

• a housing configured to attach to a wearable band that is wearable by a subject, the housing comprising:
• a first c-shaped wall defining a first chamber and a slot that extends into the housing, wherein:
• the slot is configured to extend at least partially around a width of the wearable band;
• the slot comprises an open end and a closed end, the closed end defined by the first c-shaped wall;
• and
• the first c-shaped wall comprises a sensor window;
• a second c-shaped wall forming an outside of the housing;
• a first chamber enclosed within the housing between the first c-shaped wall and the second c-shaped wall;
• a second chamber bordered by the first wall and a third wall, wherein the slot in the housing is between the first chamber and the second chamber;
• a first side of the housing along a first side of the slot;
• a second side of the housing along a second side of the slot that is opposite the first side of the slot, wherein:
• the slot is bordered by the second wall and the third wall;
• the slot comprises:
• a depth ranging from one quarter of an inch to two inches;
• a thickness ranging from one thirty-second of an inch to one quarter of an inch;
• a closed end;
• and
• an open end opposite the closed end;
• the first chamber is separated from the slot by the second wall;
• the second chamber is separated from the slot by the third wall;
• and
• the first chamber is disposed on an opposite side of the slot from the second chamber;
• the sensor window extends through the second c-shaped wall along the second side of the housing;
• a power supply disposed within the chamber in the first side of the housing;
• a processor disposed within:
• the first chamber or the second chamber;
• and
• the first side of the housing and electronically coupled to the power supply;
• a communication device disposed within the chamber in the first side of the housing and electronically coupled to the power supply or the processor;
• an elastic coupling member within the first chamber in the second side of the housing;
• a physiological sensor, wherein:
• the physiological sensor is electronically coupled to the processor;
• the physiological sensor is electronically coupled to the power supply, the processor, or the communication device;
• the physiological sensor is coupled to the elastic coupling member and aligned with the sensor window;
• and
• a force exerted by the elastic coupling member on the physiological sensor is in a direction through the sensor window;
• and
• a clamp coupled to the housing and adjacent to an open end of the slot, wherein:
• the thickness of the slot with the clamp in the closed position is less than the thickness of the slot with the clamp in an opened position;
• as the slot receives the wearable band and the clamp is closed, the first c-shaped wall forms a frictional engagement with the wearable band;
• and
• as the subject wears the wearable band and the housing is coupled to the wearable band, the physiological sensor or the sensor window is adjacent to or contacts the subject.