Fig 3 - available via license: Creative Commons Attribution 4.0 International
Content may be subject to copyright.
Source publication
Purpose
Percutaneous needle insertion is one of the most common minimally invasive procedures. The clinician’s experience and medical imaging support are essential to the procedure’s safety. However, imaging comes with inaccuracies due to artifacts, and therefore sensor-based solutions were proposed to improve accuracy. However, sensors are usually...
Context in source publication
Context 1
... to the literature [2,3,6,16], three subsequent phases can be distinguished in force during needle puncture (see Fig. 3). Phase 1, a pre-puncture phase, starts when the needle touches the tissue border, resulting in a steadily arising force curve. As soon as tissue breakage starts and a crack is initiated, phase 2 begins. The accumulated energy is released and a sudden drop in force can be observed. Then, in phase 3 (post-puncture), the needle passes ...
