Protective Sheath for a Medical Device

A method comprising:

• providing a first nonsterile pouch that contains a sterile pouch which contains a sheath;
• providing a second nonsterile pouch that contains an oximetry device;
• providing a third nonsterile pouch that contains a battery pack for the oximetry device;
• allowing for the first nonsterile pouch to be opened by a nonsterile operator located in a nonsterile area of an operating theater and the sterile pouch emptied from the first nonsterile pouch into a sterile area of the operating theater without the nonsterile operator touching the sterile pouch;
• allowing for the second nonsterile pouch to be opened by the nonsterile operator located in a nonsterile area;
• allowing for the third nonsterile pouch to be opened by the nonsterile operator located in a nonsterile area;
• providing for the nonsterile operator to attach the battery pack to be coupled to the oximetry device;
• providing for the nonsterile operator to place the oximetry device with the batty into the sheath in the sterile area without touching an outside surface of the sheath;
• and
• providing for the sterile operator to close the sheath to enclose the oximetry device and battery into a sealed interior space is formed by the closed sheath without touching the oximetry device and battery pack so that patient tissue of a patient will not come into contact with a contaminant inside the sealed interior space.

A device comprising:

• a lid, wherein the lid comprises a first open end and a first closed end, located opposite to the first open end on the lid, and the first closed end comprises a first transparent window;
• a body of the housing, wherein the body comprises a second open end and a second closed end, located opposite to the second open end on the body, and the second closed end comprises a second window;
• a hinge, wherein the hinge hinge-couples the lid and body of the housing;
• and
• a pad coupled to an inside surface of the lid.