Catheter including one or more sensors
AssigneeCovidien LP
InventorDavid J. Miller
Life of this patent
Estimating the term…
Abstract
In one example of the description, a device may have an elongated body defining a lumen. The elongated body may have a proximal portion and a distal portion. An anchoring member may be positioned on the proximal portion of the elongated body. A first temperature sensor may sense a first temperature of a fluid at a first location in the lumen. A second temperature sensor may sense a second temperature of the fluid at a second location in the lumen. The first location may be proximal to the second location. A heating member may be located proximal to the second temperature sensor. The heating member may heat the fluid within the lumen.
Claims20
A device comprising:
- an elongated body defining a lumen, the elongated body comprising a proximal portion and a distal portion;
- an anchoring member positioned on the proximal portion of the elongated body;
- a first temperature sensor configured to sense a first temperature of a fluid at a first location in the lumen;
- a second temperature sensor configured to sense a second temperature of the fluid at a second location in the lumen, the first location being proximal to the second location;
- and
- a heating member located proximal to the second temperature sensor, the heating member configured to heat the fluid within the lumen.
A method comprising:
- heating, with a heating member a fluid within a lumen defined by an elongated body comprising a proximal portion and a distal portion;
- sensing, with a first temperature sensor, a first temperature of a fluid at a first location in the lumen;
- and
- sensing, with a second temperature sensor, a second temperature of the fluid at a second location in the lumen, the first location being proximal to the second location.
A device comprising:
- an elongated body defining a lumen, the elongated body comprising a proximal portion and a distal portion;
- an anchoring member positioned on the proximal portion of the elongated body;
- a first temperature sensor configured to sense a first temperature of a fluid at a first location in the lumen;
- a second temperature sensor configured to sense a second temperature of the fluid at a second location in the lumen, the first location being proximal to the second location;
- a heating member located proximal to the second temperature sensor, the heating member configured to heat the fluid within the lumen;
- processing circuitry configured to determine a flow of the fluid within the lumen based on a difference between the first temperature and the second temperature;
- and
- an oxygen sensor configured to sense oxygen concentration in the fluid within the lumen, wherein the oxygen sensor is configured to be calibrated based on at least one of the first sensed temperature or the second sensed temperature.
Dependencies are inferred from the claim text.