Patent ID: 11957873
Assignee: AUGUSTINE BIOMEDICAL + DESIGN, LLC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A fluid extravasation detection device for detecting the subcutaneous extravasation of fluid from a vein containing an intravenous (IV) catheter comprising:
one or more first temperature sensors for positioning on skin of a patient lateral and adjacent to an entry point of the IV catheter into the vein, the one or more first temperature sensors being adapted to detect a first temperature at a first skin temperature location;
one or more second temperature sensors for positioning on skin of the patient lateral and adjacent to a tip of the subcutaneously located IV catheter, the one or more second temperature sensors being adapted to detect a second temperature at a second skin temperature location, the first and second skin temperature locations being separated by between 4 and 5 cm;
a catheter anchoring device comprising:
a skin attachment portion for holding the one or more first and the one or more second temperature sensors in contact with skin of the patient; and
a catheter capture portion configured to engage with a portion of the catheter,
the skin attachment portion coupled to the catheter capture portion, the skin attachment portion configured to adhesively attach the catheter anchoring device to the skin,
the skin attachment portion comprises an adhesive surface configured to adhesively attach the catheter anchoring device to the skin, wherein more than 50% of the adhesive surface of the skin attachment portion extends beyond the catheter capture portion in a direction along the elongation of the catheter, and being positioned on opposite sides along the elongation of the catheter,
the skin attachment portion holds the one or more first and the one or more second temperature sensors at predetermined locations on the catheter anchoring device relative to the catheter capture portion such that the one or more first temperature sensors are positioned lateral and adjacent to the entry point of the IV catheter into the vein and the one or more second temperature sensors are positioned lateral and adjacent to the tip of the subcutaneously located IV catheter;

an electronic thermometer operably connected to the one or more first and the one or more second temperature sensors, the electronic thermometer being adapted to compare a temperature difference between the first temperature and the second temperature over time; and
an alarm that is configured to be activated if the temperature difference between the first and second temperatures changes more than a predetermined amount over time.