DRILL. INNER DIAMETER 7.5 MM - Helmut Zepf (08.912.75) - Delynov

What is the TREPAN DIAMETRE INTERNE 7.5 MM - Helmut Zepf?

The trephine referenced 08.912.75 by Helmut Zepf is a precision rotary instrument designed for bone surgery. This 7.5 mm internal diameter trephine drill is manufactured from medical stainless steel by Helmut Zepf Medizintechnik GmbH. Its structure allows for clean circular cutting of hard tissues to obtain bone cores. It belongs to the category of consumables for implant and periodontal surgery. Delivered non-sterile, this instrument must strictly follow a complete cleaning, disinfection, and sterilization protocol before its first use and between each patient.

What are the clinical indications?

This trephine drill is primarily indicated in oral surgery for autogenous bone harvesting, often used in guided bone regeneration techniques or sinus lifts. As a dental hole saw, it facilitates the extraction of precise bone cylinders or the preparation of sites for large diameter implants. Its use is reserved for qualified healthcare professionals practicing implantology or maxillofacial surgery. The instrument allows for standardizing the diameter of the harvested core, thus ensuring better predictability during grafting at the recipient site.

What are the technical characteristics?

The Helmut Zepf trephine has an internal diameter of 7.5 mm, corresponding to technical reference 08.912.75. It is designed in medical stainless steel, a material chosen for its mechanical resistance during bone cutting. This device is classified as a Class I instrument according to current regulations. Its design allows for the evacuation of bone debris while preserving the integrity of the central core. It is essential to check for the absence of visible damage, such as cracks or wear of the cutting edges, before any intervention to guarantee the effectiveness of the surgical procedure.

What are the contraindications for use?

The main medical contraindication mentioned by the manufacturer Helmut Zepf Medizintechnik GmbH concerns known hypersensitivity or intolerance to metals, particularly medical stainless steel. If a hypersensitivity reaction is triggered in the patient upon contact with the instrument, the surgical procedure must be immediately interrupted and necessary medical measures must be taken. Furthermore, the use of this trephine drill is strictly prohibited if the instrument shows visible defects, breakages, or marked wear of the sharp edges, in order to avoid any risk of intraoperative complication.

What are the maintenance and reprocessing precautions?

As Helmut Zepf products are delivered non-sterile, a complete reprocessing cycle is mandatory. This includes cleaning, disinfection, and sterilization before the first use and after each subsequent use. Due to its technical design, there is no defined maximum limit for treatment cycles; however, the service life depends on functional wear. The practitioner must carefully inspect the 7.5 mm trephine drill to detect any trace of corrosion or loss of sharpness. Using a blunt instrument can lead to overheating of the bone and compromise healing.

Who is the manufacturer and what standards are respected?

This medical device is manufactured by Helmut Zepf Medizintechnik GmbH, located in Seitingen-Oberflacht, Germany. It is a Class I instrument (Class Ir according to certain reprocessing specifications). The manufacturer requires strict compliance with hospital hygiene protocols to maintain product conformity. Compatibility with other rotary devices must be verified by the professional before the procedure. As a recognized manufacturer, Helmut Zepf guarantees the use of materials compliant with dental surgery requirements, subject to handling and maintenance in accordance with the technical instructions provided.

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Surgical medical consumables play a decisive role in operative safety.