All instruments are reusable and certified according to:
Broad, Atraumatic Deep Retractor for Maximum Tissue Preservation in Extensive Confined Approaches
The JANSEN BLUNT 4x4 RETRACTOR is a medical device of CE Class I according to ISO 13485:2016. This premium instrument combines the depth-critical length of 10.0 cm with a broad, fully blunt 4x4 prong configuration. It is designed for powerful yet maximally tissue-sparing retraction of large volumes of sensitive or vulnerable tissue in deep and relatively confined surgical fields.
Product Highlights:
✔ Certified according to ISO 13485:2016
✔ CE marking Class I (Directive 93/42/EEC)
✔ Broad, atraumatic construction for large surface areas
✔ Fully blunt and polished 4x4 prongs for broad, secure hold without trauma
✔ Significant length: 10.0 cm for gentle deep tissue retraction
✔ High-quality Stainless Steel 1.4301 – rust-proof and biocompatible
✔ Verified biocompatibility according to ISO 10993
✔ Precise spring mechanism with finely adjustable tension control
✔ Sterilizable and reusable (autoclavable)
Advantages of the Jansen Blunt 4x4 Retractor:
• Atraumatic Broad Retraction at Depth: Enables broad and stable retraction of large muscle or soft tissue masses in deep compartments (e.g., deep back muscles, large joint capsules) absolutely without risk of cutting or perforation. The broad prong design optimally distributes pressure.
• Maximum Safety for Sensitive Structures: The instrument of choice for retraction in immediate proximity to nerve plexuses (e.g., brachial plexus, sciatic nerve), major blood vessels, or fresh microsurgical anastomoses, where even minimal tissue injury can be catastrophic.
• Critical in Revision and Soft Tissue Surgery: Indispensable for re-operations in tissue compromised by scarring, radiation, or infection, where the integrity of the remaining structures is the highest priority.
• Superior Surgeon Ergonomics: The 10.0 cm length allows for energy-efficient and precise work even in difficult deep positions without sacrificing tissue-sparing properties.
• Ideal Combination of Reach and Preservation: Fills the gap between required depth penetration and the absolute necessity to avoid any additional trauma.
Technical Specifications:
• Model: JANSEN Retractor, blunt, 4x4
• Type: Broad, long, and atraumatic spring retractor
• Total Length: 10.0 cm
• Prongs: Symmetrical, fully blunt and high-gloss polished; 4 prongs on each side (4x4)
• Material: Stainless Steel 1.4301 (high-gloss polished)
• Mechanism: High-quality spring for sensitive and stable tension adjustment
• Special Feature: Premium instrument for demanding atraumatic deep retraction in Reconstructive Orthopedics, Neurosurgery, and Vascular Surgery
• Risk Class: I according to Directive 93/42/EEC
• Reprocessing: Fully autoclavable; smooth surfaces facilitate cleaning
Areas of Application:
• Atraumatic spinal surgery with broad exposure (e.g., degenerative scoliosis corrections)
• Revision surgery in the area of nerve plexuses or major blood vessels
• Extensive soft tissue reconstructions after trauma or tumor resection
• Major joint revisions (e.g., hip or shoulder revision) with protection of the surrounding soft tissue envelope
• Microvascular and reconstructive surgery with protection of anastomoses
Important Safety Notes:
• FOR USE BY HIGHLY QUALIFIED AND SPECIALIZED SURGICAL PERSONNEL ONLY.
• Meticulous Pre-Use Inspection: Before each use, it must be ensured that all 8 prongs are flawlessly blunt, high-gloss polished, and free of microscopic irregularities. The long shaft must show no bending whatsoever.
• Critical Awareness of Pressure: Even blunt, broad prongs can cause severe pressure damage (nerve compression, ischemia) if tension is uncontrolled or too high. Tension must be set to a minimal, sufficient, and constantly monitored level.
• Absolute Protection of Neural and Vascular Structures: Despite the atraumatic design, the instrument must not be pressed directly onto exposed nerves or blood vessels.
• Due to its length, delicate handling without lateral bending forces is required.
• Replace immediately upon the slightest change in polish, deformation of a prong, or functional deviation.
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All instruments are certified according to:
