Patent ID: 11969248
Assignee: SENTINEL MEDICAL TECHNOLOGIES, LLC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 19:
20. A method for measuring pressure within a body cavity without insertion of fluid into the body cavity, the method comprising the steps of:
a. providing a catheter having a pulse oximeter, an inner balloon and an outer balloon, a wall of the inner balloon spaced from a wall of the outer balloon, the inner balloon having a first region to receive balloon expanding fluid from the outer balloon on the first region;
b. inserting the catheter into the body cavity;
c. expanding the inner balloon from a first condition to a more inflated condition, an internal space of the inner balloon forming a gas containing chamber containing a gas:
d. either before or after step (c) expanding the outer balloon from a first condition to a more inflated condition via insertion of the balloon expanding fluid; and
e. obtaining multiple pressure readings within the body cavity during a procedure based on deformation of the outer balloon which causes deformation of the inner balloon to monitor pressure the outer balloon providing a medium for transfer of the balloon expanding fluid against the wall of the inner balloon for multiple pressure measurements without requiring insertion of fluid into the body cavity;
f. measuring oxygen levels via the pulse oximeter.