Medical assemblies, devices, and systems having a micro-electromechanical system

A medical device comprising:

• a handle;
• a shaft extending from the handle to a distal end portion, wherein the distal end portion includes:
• an opening in fluid communication with an environment around the shaft;
• a housing including a cavity in fluid communication with the opening;
• and
• a micro-electromechanical system (MEMS) assembly including at least one sensor, wherein the MEMS assembly is disposed within the housing, and wherein the at least one sensor faces away from the opening.

A medical device comprising:

• a handle;
• a shaft extending from the handle to a distal end portion, wherein the distal end portion includes:
• an opening in fluid communication with an environment around the shaft;
• a housing including a cavity in fluid communication with the opening, wherein the housing includes one or more supports;
• and
• a micro-electromechanical system (MEMS) assembly including a MEMS chip and at least one sensor disposed on a surface of the MEMS chip, wherein the MEMS assembly is disposed on the one or more supports.