Medical device with pressure sensor

A pressure sensing medical device, comprising:

• a tubular member having a proximal region and a housing region;
• an optical fiber extending at least partially through the tubular member, the optical fiber having a distal end region;
• a pressure sensor formed at the distal end region of the optical fiber, the pressure sensor including a deflectable membrane;
• wherein the deflectable membrane includes a polymer;
• and
• a pressure equalization channel extending through the optical fiber and in fluid communication with the deflectable membrane.

A pressure sensing guidewire, comprising:

• a tubular member having a proximal region, a distal region, and a sensor housing region;
• wherein the distal region has a plurality of slots formed therein;
• an optical fiber extending at least partially through the tubular member, the optical fiber having a distal end region;
• a pressure sensor coupled to the distal end region of the optical fiber, the pressure sensor including a sensor head defining a cavity and a deflectable membrane coupled to the sensor head and extending across the cavity;
• wherein the deflectable membrane includes a polymer;
• and
• one or more pressure equalization channels extending through the optical fiber and in fluid communication with the cavity and with the deflectable membrane.