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. 2024 Jan 25;16(1):e52911. doi: 10.7759/cureus.52911

Figure 1. Trigger finger Sono Instrument® features.

Figure 1

The TF-SI presents an angulated, sharp end that allows for an A1 pulley progressive cut. A specific flange is added on the unbeveled side of the tip to enhance the sonographic visualization of the cutting part (arrow). A spiral groove on the instrument rod allows for the identification on the sonography image of the amount of rotation of the instrument (arrow heads).

Image created by F Moungondo