Description
Doyens myoma screw on T handle
The Doyen Myoma Screw with a T-handle is a specialized gynecological instrument primarily used during myomectomy (the surgical removal of uterine fibroids or myomas) to securely grasp, manipulate, and extract the fibroid tissue. It is designed to provide a firm hold on both firm and soft fibroids, which is difficult to achieve with traditional grasping forceps.
Key Features and Design
- Sharp, Threaded Tip: The instrument features a sharp, corkscrew-like spiral tip designed to pierce through the fibrous tissue of the myoma and anchor deeply.
- T-Handle (Ergonomic Grip): The T-shaped handle offers a secure, comfortable, and ergonomic grip, allowing the surgeon to apply torque, rotate, and pull the instrument with precision.
- Stainless Steel Construction: Made from high-grade, durable, and corrosion-resistant stainless steel, the instrument is fully autoclavable and reusable.
- Sizes: They are available in various lengths (typically around 15cm to 18cm for open surgery, though longer 330mm versions exist for laparoscopy) to accommodate different anatomical requirements.
How it Works (Mechanism of Action)
The Doyen myoma screw functions by embedding into the fibroid, allowing for traction and removal.
- Insertion and Piercing: The sharp tip of the screw is positioned against the uterine fibroid.
- Engagement (Screwing): The surgeon uses the T-handle to rotate the instrument clockwise, causing the threaded screw to drill into the fibroid tissue.
- Traction and Manipulation: Once securely engaged, the T-handle is used to pull (traction), twist, and manipulate the fibroid. This provides maximum control, allowing the surgeon to separate the tumor from the surrounding uterine tissue (enucleation).
- Extraction: The secured fibroid is then removed through the surgical opening.
Clinical Applications
- Myomectomy: Primarily used to remove uterine fibroids.
- Uterine Mobilization: Helps in lifting and positioning the uterus during surgery.
- Laparoscopic and Open Surgery: While commonly used in open surgeries, specific long-shaft versions are used in laparoscopic procedures, often inserted through a trocar.
- Handling Large Fibroids: Particularly useful for mobilizing large fibroids.
Benefits
- Superior Grip: Unlike forceps, which may slip, the screw provides a firm, stable hold.
- Reduced Trauma: The narrow diameter of the screw limits damage to the surrounding uterine wall.
- Improved Efficiency: Allows for easier, faster extraction, particularly in difficult, deep, or large fibroid cases.
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