Intra-aortic balloon catheter having a dual sensor pressure sensing system
AssigneeDatascope Investment Corp.
InventorsRobert B. Schock, Jonathan Williams, Daniel A. Walters
Life of this patent
Estimating the term…
Abstract
A balloon catheter has a balloon membrane, a tip connected to the distal end of the balloon membrane and an outer tube connected to the proximal end of the balloon membrane for supplying a medium for inflating and deflating the balloon membrane. A pressure sensor, such as a fiber optic sensor, may be mounted in a pocket in the tip. The pocket may be filled with a flexible substance which both communicates pressure to and protects the pressure sensor. A membrane may overlie the pocket to prevent leakage of the flexible substance therefrom.
Claims14
A balloon catheter system, comprising:
- a balloon catheter including a balloon membrane, a tip, a proximal fitting and an outer tube, a distal end of the balloon membrane being connected to the tip, and a proximal end of the outer tube being connected to the proximal fitting;
- a fluid-filled pressure measurement system including a fluid source connected to the proximal fitting via a fluid source line, and a pressure sensor for measuring pressure in the fluid source line;
- and
- a catheter pressure sensor connected to the balloon catheter.
A balloon catheter system, comprising:
- a balloon membrane;
- a conduit connected to a proximal end of the balloon membrane;
- a tip connected to a distal end of the balloon membrane, the tip having a pocket therein;
- a pressure sensor mounted to the tip within the pocket;
- and
- a protective material overlying the pressure sensor, the protective material being selected from the group consisting of a gel, a fluid and a gas.
A balloon catheter system, comprising:
- a balloon catheter including a balloon membrane, a tip, a proximal fitting and an outer tube, a distal end of the balloon membrane being connected to the tip, and a proximal end of the outer tube being connected to the proximal fitting;
- a measurement system adapted to be fluid-filled, the measurement system being connectable to a fluid source and the proximal fitting via a fluid source line, and being connectable to a first pressure sensor for measuring pressure in the fluid source line;
- and
- a second pressure sensor connected to the balloon catheter, the second pressure sensor including a fiber optic sensor.
Dependencies are inferred from the claim text.