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Sono-Instrument - Trigger Finger for Percutaneous Release

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The Trigger Finger Sono-Instrument provides a minimally invasive solution for treating trigger fingers through percutaneous release of the annular pulley, particularly the A1 pulley. Packaged as a single-use sterile kit, it includes a probe that assists in tissue dissection and confirms the surgical release's completeness. The procedure is performed under ultrasound guidance with local anesthesia, eliminating the need for skin incisions, stitches, or dressings and results in no blood loss externally. Key technical features include a cutting extremity safeguarded from neighboring tendons, spiral grooves for enhanced sonographic visibility, and a rod specifically designed to navigate the flexor digital sheath. With a 1.5mm diameter, the rod can be introduced through a 14 Gauge IV puncture. The device is intended for use by skilled clinicians familiar with hand surgery and sonography. It is contraindicated in specific patient conditions such as active infections or abnormal anatomical structures.
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Safe surgery
The procedure requires ultrasound guidance under local anaesthesia.

Percutaneous surgery
Our technique does not require any skin incision, stitches, or dressing. It does not result in any external blood loss.

Quick surgery
The procedure takes a few minutes to complete, and is performed with minimal instrumentation.

Early return to daily activities
After the procedure, patients can resume their daily activities.

Cutting extremity
Cutting extremity allowing release in the plane chosen by the surgeon, safe for neighbouring tendons/ nerves/ vessels, with lateral flanges enhancing the echogenicity.

Spiral groove
Spiral groove facilitating the visualization of the Sono-Instrument® under sonography and providing information about rotatory alignment.

Rod design
Special design of the rod, adapted to the anatomy of the flexor digital sheath.

Rod diameter
1.5mm diameter rod, allowing insertion through the skin by a puncture made by a 14 Gauge IV catheter.

Handle
Handle, allowing firm non-slip grip of the Sono-Instrument® and the maintain of its orientation throughout the whole procedure of release.