TREPAN. DIAMETER INTERNAL 4.3 MM - Helmut Zepf (08.910.06) - Delynov

What is the Helmut Zepf 4.3 mm trepan?

The 4.3 mm trepan developed by Helmut Zepf Medizintechnik GmbH is a high-precision rotary instrument intended for bone surgery. This device, identified under reference 08.910.06, is specifically designed to perform clean circular osteotomies. Its structure allows for the harvesting of cylindrical bone cores with a calibrated internal diameter of 4.3 mm. Manufactured according to the rigorous quality standards of the Helmut Zepf brand, this instrument is a robust tool for practitioners performing bone reconstruction procedures or implant removals. It belongs to the category of surgical consumables and meets safety requirements for use in a sterile clinical environment.

What are the clinical indications for this 4 3mm trepan?

This 4 3mm trepan has two main clinical indications in oral and implant surgery. First, it is used to obtain cylindrical bone blocks harvested directly from the patient's jaw. These harvests can then be transplanted to another surgical site or passed through a bone grinder for subsequent treatment for a graft. Secondly, this instrument is indicated for the explantation of implants. Its design allows for cutting the bone surrounding the implant to facilitate its removal when it is integrated or needs to be replaced. The use of the Helmut Zepf trepan guarantees a standardized approach for these two types of delicate interventions.

What are the technical characteristics and operating parameters?

Technically, this 4 3mm trepan drill has an internal diameter of 4.3 mm, corresponding to reference 08.910.06. For obtaining bone blocks, the manufacturer Helmut Zepf recommends setting the motor to a speed between 800 rpm and an unspecified maximum (recommended standard working speed). For explantation procedures, the speed must be adjusted between 800 rpm and 1000 rpm maximum. The drilling or milling process must imperatively be carried out with continuous insertion and extraction movements. Abundant irrigation with sterile physiological saline solution is mandatory, either manually or via the contra-angle's cooling system, to avoid any tissue overheating.

What are the precautions and contraindications for use?

Although the regulatory text does not list absolute medical contraindications related to the material, several precautions for use are crucial. During treatment, excessive pressure must never be applied to the bone. A major safety instruction stipulates that the motor must never be stopped as long as the trepan is inside the surgical cavity. Stopping the rotation prematurely could prevent the removal of the instrument or, in the worst case, cause the trepan to break in the operative site. The choice of diameter must be rigorously adapted to the volume of the desired bone block or the diameter of the implant to be removed to ensure the success of the intervention.

What are the recommendations for handling and irrigation?

Handling the Helmut Zepf trepan requires rigorous temperature management. Rinsing with sterile physiological saline solution is indispensable throughout the drilling phase. This irrigation can be performed in combination with the contra-angle spray or by external manual assistance. The objective is to maintain the thermal homeostasis of the alveolar bone to prevent any necrosis. The practitioner must ensure smooth back-and-forth movements (in and out) to evacuate bone debris and allow the irrigation fluid to reach the working end of the drill. Compliance with these handling protocols ensures the longevity of the instrument and the biological safety of the patient.

Who is the manufacturer and what standards are respected?

The trepan is manufactured by Helmut Zepf Medizintechnik GmbH, a recognized manufacturer located in Seitingen-Oberflacht, Germany. This medical device is classified as Class IIa according to current regulations (MDC0483). As a Class IIa product, it meets strict requirements regarding design, manufacturing, and clinical follow-up to guarantee its safety of use in invasive surgery. Reference 08.910.06 demonstrates Helmut Zepf's expertise in high-precision rotary instrumentation. Practitioners can thus rely on equipment that complies with European standards for their bone harvesting and implantology procedures.

State of the art

Surgical medical consumables play a decisive role in operative safety.