Intraperitoneal pressure (“IPP”) measurement methods, apparatuses, and systems
Inventors
Basati, Sukhraaj • Del Castillo, Jorge Augusto • Yanaga, Joanna Rita • Grivas, Chris John • Norman, John Sterling
Assignees
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Publication Number
US-12458738-B2
Publication Date
2025-11-04
Expiration Date
Abstract
An intraperitoneal pressure (“IPP”) measurement apparatus is disclosed herein. In an example, the IPP measurement apparatus includes a transfer set or catheter that is fluidly coupled to a patient's peritoneal cavity and a pressure sensor adapted to contact the transfer set or catheter. The pressure sensor is configured to transmit output data indicative of an IPP within the patient's peritoneal cavity. The pressure sensor includes a pressure element configured to measure a pressure imparted by a fluid within the transfer set or catheter. The pressure sensor also includes a pressure amplifier having a first side that contacts a portion of the transfer set or catheter and a second side that contacts the pressure element. The first side has a greater diameter or surface area compared to the second side for amplifying the pressure signal for the IPP measurement.
Core Innovation
The invention relates to an intraperitoneal pressure measurement system for peritoneal dialysis. The system includes a fluid container containing peritoneal dialysis fluid and a transfer set and catheter in fluid communication with the fluid container for providing peritoneal dialysis fluid to a patient's peritoneal cavity. A pressure sensor is configured to contact the transfer set or the catheter and to transmit output data indicative of an intraperitoneal pressure within the patient's peritoneal cavity.
The pressure sensor includes a pressure element measuring a pressure imparted by a fluid within the transfer set or catheter. The pressure sensor further includes a pressure amplifier that has a first side contacting a portion of the transfer set or catheter and a second side contacting the pressure element, where the first side has a greater diameter or surface area compared to the second side. This configuration provides pressure amplification for intraperitoneal pressure measurement using the pressure imparted by the fluid in the transfer set or catheter.
A processor is communicatively coupled to the pressure sensor to receive the output data indicative of the intraperitoneal pressure within the patient's peritoneal cavity. The processor is configured to use the output data indicative of the intraperitoneal pressure to determine a fill volume parameter for a peritoneal dialysis treatment, or to cause the output data indicative of the intraperitoneal pressure to be displayed to enable determination of the fill volume parameter.
Claims Coverage
The identified independent claim coverage centers on 2 inventive features: an intraperitoneal pressure measurement system with a pressure sensor and pressure amplifier architecture, and a processor configured to determine or display a fill volume parameter from the sensor output data.
Pressure sensor with pressure amplifier using different-area sides
A pressure sensor configured to contact the transfer set or the catheter, including a pressure element configured to measure a pressure imparted by a fluid within the transfer set or catheter, and a pressure amplifier having a first side that contacts a portion of the transfer set or catheter and a second side that contacts the pressure element, the first side having a greater diameter or surface area compared to the second side.
Processor-based use of IPP output to determine or display a fill volume parameter
A processor communicatively coupled to the pressure sensor, configured to receive the output data indicative of the intraperitoneal pressure within the patient's peritoneal cavity, and at least one of use the output data indicative of the intraperitoneal pressure to determine a fill volume parameter for a peritoneal dialysis treatment for the patient, or cause the output data indicative of the intraperitoneal pressure to be displayed to enable a determination of the fill volume parameter.
The core inventive coverage centers on capturing intraperitoneal pressure via a pressure sensor with a pressure amplifier having different-area sides, and coupling that sensor output to a processor that determines or enables determination of a fill volume parameter from the output data.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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