Peritonitis sensors, including peritonitis sensors for automated peritoneal dialysis systems, and associated systems, devices, and methods

A method for detecting peritonitis in a disposable set of an automated peritoneal dialysis (APD) system, the method comprising:

• aligning a portion of the disposable set with a peritonitis sensor;
• capturing, via the peritonitis sensor, one or more peritonitis measurements from a solution in the disposable set;
• and
• determining that the one or more peritonitis measurements indicate a presence of peritonitis in a patient from which the solution was drained,
• wherein determining that the one or more peritonitis measurements indicate the presence of peritonitis comprises:
• using optical character recognition (OCR) to determine a reading of text in the one or more images and comparing the reading to reference text;
• or
• using OCR to determine a count of one or more elements of a pattern in the one or more images and comparing the count to a reference count.

A non-transitory computer-readable medium having instructions stored thereon that, when executed by one or more processors of an automated peritoneal dialysis (APD) system, cause the APD system to perform functions comprising:

• capturing, via a peritonitis sensor, one or more peritonitis measurements from a solution in a disposable set;
• and
• determining that the one or more peritonitis measurements indicate a presence of peritonitis in a patient from which the solution was drained,
• wherein determining that the one or more peritonitis measurements indicate the presence of peritonitis comprises:
• using optical character recognition (OCR) to determine a reading of text in the one or more images and comparing the reading to reference text;
• or
• using OCR to determine a count of one or more elements of a pattern in the one or more images and comparing the count to a reference count.