A biopsy gun or biopsy needle is a medical device used to perform a biopsy, which is the removal of a small sample of tissue from the body for examination and diagnosis. Biopsies are commonly performed to diagnose or rule out various medical conditions, including cancer and other diseases.
- Design: Biopsy guns or needles typically consist of a thin, hollow needle-like structure designed to access and collect tissue samples from deep within the body without the need for open surgery. The needles can vary in length and thickness, depending on the specific application and the area of the body being biopsied.
- Trigger Mechanism (Biopsy Gun): Some biopsy devices are referred to as “biopsy guns” because they include a trigger mechanism. This mechanism allows the needle to be advanced or retracted from the device using a spring-loaded or pneumatic system, making the procedure more controlled and precise.
- Guidance Systems: Biopsy guns or needles are often used in conjunction with imaging technologies such as ultrasound, computed tomography (CT), or magnetic resonance imaging (MRI) to help guide the needle to the specific target area accurately.
- Types of Biopsy: Biopsy guns or needles can be used for different types of biopsies, including fine-needle aspiration (FNA) biopsy, core needle biopsy, and vacuum-assisted biopsy (VAB). Each type of biopsy may have specific needle designs and features suited to its purpose.
- Disposable or Reusable: Biopsy needles can be either disposable, where they are used once and then discarded, or reusable, where they are sterilized and used for multiple procedures.