Expander Ragnell-Davis - Helmut Zepf (38.074.14) - Delynov

What is the Ragnell-Davis retractor - Helmut Zepf?

The Ragnell-Davis retractor, referenced under code 38.074.14 by Helmut Zepf, is a manual instrument designed for tissue retraction. Manufactured from high-quality medical stainless steel, this ragnell retractor is distinguished by its double-ended structure, offering two distinct working surfaces on a single handle. This instrument belongs to the category of guided bone regeneration (GBR) and plastic surgery devices. As a Helmut Zepf Medizintechnik GmbH product, it benefits from the expertise of a recognized manufacturer in precision instrumentation. Its robust stainless steel design ensures the necessary resistance to mechanical stress during the retraction of soft tissues in the oral environment.

What are the clinical indications for this double surgical retractor?

This double surgical retractor is primarily indicated as a manual dental instrument for the exposure of the surgical site. In oral surgery and implantology, it is used to retract flaps and maintain optimal visibility of bone or root structures. Its use is particularly relevant during guided bone regeneration (GBR) procedures, where the stability of soft tissue maintenance is crucial for the placement of membranes or filling materials. The double end allows the practitioner to choose the blade size most suited to the depth of the intervention area or the tissue laxity of the patient, thus ensuring ergonomic access to the surgical field.

What are the technical specifications of instrument 38.074.14?

The Ragnell-Davis retractor (38.074.14) is a Class I medical device manufactured by Helmut Zepf Medizintechnik GmbH. It is designed in medical stainless steel, a material chosen for its mechanical properties and compatibility with sterilization processes. The instrument is delivered non-sterile and requires a full preparation cycle before each use. Its major technical characteristic lies in its bilateral configuration (ragnell davis retractor), allowing versatile handling without changing instruments. The manufacturer specifies that products must be inspected before use to detect any visible damage, such as cracks or defects on the edges, to ensure surgical safety.

What are the contraindications for the use of this instrument?

The main medical contraindication mentioned by the manufacturer Helmut Zepf concerns metal intolerance. Contact with the medical stainless steel instrument may cause a hypersensitivity reaction in certain sensitive patients. If such a reaction occurs during the intervention, the procedure must be stopped immediately and the necessary clinical measures must be taken. Apart from this specific sensitivity to stainless steel components, use is reserved exclusively for qualified healthcare professionals. It is also contraindicated to use the instrument if it shows visible signs of wear, breakage, or defects on the edges, as this could compromise the integrity of the manipulated tissues.

What are the maintenance and reprocessing precautions?

As it is a non-resorbable and reusable instrument, all Helmut Zepf instruments must imperatively be cleaned, disinfected, and sterilized before the first use, as well as after each subsequent use. Cleaning must be complete to eliminate all biological residue. Due to the design of the instrument and the materials used, there is no defined maximum limit for the number of processing cycles, as long as the instrument does not show visible damage or wear. The practitioner must verify compatibility with other products used simultaneously. The use of damaged or worn products is strictly prohibited to avoid any risk of rupture or iatrogenic injury.

Who is the manufacturer and what standards are respected?

The Ragnell-Davis retractor is manufactured by HELMUT ZEPF Medizintechnik Gmbh, located in Seitingen-Oberflacht, Germany. This device is classified as a Class I instrument according to the current regulations on medical devices (MDR). The manufacturer insists on strict compliance with cleaning and sterilization protocols to maintain the conformity and safety of the device. As a manual dental instrument intended for healthcare professionals, it meets the quality requirements of the Helmut Zepf brand, ensuring traceability and manufacturing in accordance with medical stainless steel standards. The instructions provided by the manufacturer must be consulted to ensure adequate reprocessing and optimal longevity of the instrument.

State of the art

Guided bone regeneration (GBR) in implantology relies on membrane fixation quality.