Vital sign monitoring device

A vital sign monitoring device, comprising:

• a patch assembly, the patch assembly including:
• an adhesive layer having a lower side and an upper side, the adhesive layer being configured for application to a patient's skin;
• a vital sign sensor assembly embedded within the adhesive layer, the vital sign sensor assembly including one or more pulse oximetry sensors;
• a flexible circuit member electrically coupled to the vital sign sensor assembly on the upper side of the adhesive layer;
• and
• an inlay having a raised perimeter section surrounding the circuit member and defining an interior space within the patch assembly;
• and an electronics package, the electronics package including:
• a fastener element configured to engage with the inlay to detachably couple the electronics package to the patch assembly;
• a power supply;
• and
• a microcontroller operatively coupled to the power supply and being disposed so as to be electrically coupled to the circuit member when the electronics package is coupled to the patch assembly,
• wherein the patch assembly and the electronics package are attachable by a single-use attachment mechanism configured to limit operability of the patch assembly after an initial attachment and detachment.

A method of monitoring one or more patient vital signs, the method comprising:

• providing a vital sign monitoring device, the vital sign monitoring device including a patch assembly coupled to an electronics package, the patch assembly including:
• an adhesive layer having a lower side and an upper side, the adhesive layer being configured for application to a patient's skin;
• a vital sign sensor assembly embedded within the adhesive layer;
• a circuit member electrically coupled to the vital sign sensor assembly on the upper side of the adhesive layer;
• and
• an inlay having a raised perimeter section surrounding the circuit member and defining an interior space within the patch assembly;
• and the electronics package including:
• a fastener element configured to engage with the inlay to detachably couple the electronics package to the patch assembly;
• a power supply;
• and
• a microcontroller operatively coupled to the power supply and being disposed so as to be electrically coupled to the circuit member when the electronics package is coupled to the patch assembly;
• applying the vital sign monitoring device to a patient's skin;
• and
• obtaining one or more vital sign measurements from the vital sign monitoring device.