A medical device includes a disposable Ear-Nose-Throat (ENT) tool, a reusable handle, and a processor.The ENT tool is configured to perform a medical procedurein a patient ENT organ. The reusable handle is configuredto hold and control the disposable ENT tool, and includesa position sensor configured to produce one or moreposition signals that are indicative of a first positionof the reusable handle. The processor is configured toreceive the position signals from the position sensor,and to estimate, based on the position signals, a secondposition the disposableENT tool in the patient ENTorgan.
