US 11,717,642 B2
Catheter including one or more sensors
David J. Miller, Boulder, CO (US)
Assigned to Covidien LP, Mansfield, MA (US)
Filed by Covidien LP, Mansfield, MA (US)
Filed on Apr. 24, 2020, as Appl. No. 16/858,287.
Prior Publication US 2021/0330935 A1, Oct. 28, 2021
Int. Cl. A61M 25/00 (2006.01); A61M 25/01 (2006.01)
CPC A61M 25/0017 (2013.01) [A61M 25/01 (2013.01); A61M 2025/0166 (2013.01); A61M 2205/3331 (2013.01); A61M 2205/3368 (2013.01); A61M 2205/3379 (2013.01); A61M 2210/1085 (2013.01); A61M 2210/1089 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
an elongated body defining a lumen, the elongated body comprising a proximal portion and a distal portion, the proximal portion being configured to be at least partially inserted into a body of a patient and the distal portion being configured to remain external to the body of the patient when the proximal portion is at least partially inserted into the body of the patient;
an anchoring member positioned on the proximal portion of the elongated body;
a sensor located on the distal portion of the elongated body, the sensor configured to sense at least one flow parameter of a fluid within the lumen;
a temperature sensor located on the elongated body, the temperature sensor being configured to sense a body temperature of a patient or a temperature of the fluid within the lumen; and
processing circuitry configured to determine a density parameter of the fluid in the lumen based at least in part on the sensed at least one flow parameter of the fluid and one of the sensed body temperature of the patient or the sensed temperature of the fluid.
 
9. A method comprising:
sensing, with a sensor located on a distal portion an elongated body defining a lumen, the elongated body comprising a proximal portion and the distal portion, the proximal portion being configured to be at least partially inserted into a body of a patient and the distal portion being configured to remain external to the body of the patient when the proximal portion is at least partially inserted into the body of the patient, at least one flow parameter of a fluid within the lumen;
sensing, with a temperature sensor located on the elongated body, a body temperature of a patient or a temperature of the fluid within the lumen; and
determining, with processing circuitry, a density parameter of the fluid in the lumen based at least in part on the sensed at least one flow parameter of the fluid and one of the sensed body temperature of the patient or the sensed temperature of the fluid.
 
18. A Foley catheter system comprising:
a Foley catheter elongated body defining a drainage lumen, the Foley catheter elongated body comprising a proximal portion and a distal portion, the proximal portion being configured to be at least partially inserted into a body of a patient and the distal portion being configured to remain external to the body of the patient when the proximal portion is at least partially inserted into the body of the patient;
an anchoring member positioned on the proximal portion of the Foley catheter elongated body;
a sensor located on the distal portion of the Foley catheter elongated body, the sensor configured to sense at least one flow parameter of a fluid within the lumen;
processing circuitry configured to determine at least one of a density parameter or a temperature parameter of the fluid in the lumen based on the sensed at least one flow parameter of the fluid; and
a temperature sensor located on the Foley catheter elongated body and being configured to sense a temperature of the fluid within the lumen, wherein the processing circuitry is configured to determine the density parameter of the fluid based on the at least one flow parameter and the sensed temperature of the fluid.