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      So Qonsistent!

      Minimize interruptions and maximize efficiency with the SQ.line® KERRISON

      Your career is focused on providing the best possible care for your patients. In an environment where precision and quality are of utmost importance, inconsistency is not an option. That's why we developed the SQ.line® KERRISON, a superior solution [1] to the challenges of using bone punches in spinal and cranial procedures. With its improved durability, robustness [1], [2] and corrosion resistance (in comparison to non-coated punches), it is an invaluable addition to the operating room (OR) and a smart investment in improved technology to achieve positive clinical outcomes.

      • 0%

        of bone punches are defective: you deserve better

      Did you know?

      60% of bone punches in use, in German hospitals are in a desolate condition or are defective. Aesculap performed a comprehensive inventory analysis of approximately 3,200 bone punches used between 2013 and 2020. We found out that only 40% of the analyzed bone punches were satisfactory, while the remaining 60% were defective or in a desolate condition. When bone punches are not functioning properly, surgical procedures can be delayed and can negatively affect patients. We believe that surgeons and patients deserve better, which is why we developed the SQ.line® KERRISON for improved durability and consistency.

      Improved durability for your most demanding cases

      The SQ.line® KERRISON is designed to withstand the rigors of complex procedures, with increased durability that makes it more robust. [1], [2] With up to three times more punches before repairs or blunting, [1] it offers increased efficiency, making it an excellent choice for your OR.

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        Compared to non-coated punches, the SQ.line® KERRISON reflects up to 86% less light [6]

      Reduced interruptions and increased availability

      Not only does the SQ.line® KERRISON last longer, [1], [2] but it also provides a new level of functional availability. [3] The Noir® plus coating effectively reduces irritating light reflections. Compared to non-coated punches, the SQ.line® KERRISON reflects up to 86% less light [4] improving the vision over the operating field.
      The coating together with the clever instrument design, significantly reduce the risk for intraoperative jamming and enable a fast removal of punched bone and tissue. [5] All this together reduce the intraoperative downtime of KERRISON bone punches and create confidence and satisfaction.

      Value-preserving manufacturer repair

      Yes, the SQ.line® KERRISON represents a new level of quality, [1] but we care even more about your peace of mind. This is why we offer a value-preserving manufacturer repair service to maintain the quality and functionality of the instrument. We want to save you time and costs for repairing or replacing damaged instruments, allowing you to focus on what matters most: performing your work with confidence.
      More information about the Aesculap Technical Service >

      Get in touch with us!

      SQ.line® KERRISON contact form

      Performance

      Performance

      New cutting edge & guiding principle​ for reliable and easier punching [1], [3], [6]

      Reduced jamming under regular usage and maintenance due to Noir® plus coating [5]

      Durability

      Durability

      New, harder material for ​increased durability [1]

      Easy-to-clean appearance

      Easy-to-clean appearance

      Reduced overlapping, no lumen ​for ejector

      Intuitiveness

      Intuitiveness

      Innovative latch concept for easy ​dis-/assembly [7]

      Ergonomics

      Ergonomics

      Wide ergonomic handles for ​pressure reduction [8]

      Optimized for back-hand ​punching [6]

      Related documents

      So Qonsistent!

      SQ.line® KERRISON related information

      1. Manual cutting endurance test. Three samples of two worst-case SQ.line® KERRISONs and previous Aesculap KERRISONs each were used to cut lamb spine 25 000 times. All SQ.line® KERRISONs were perfectly functioning after the test cycles without repair and thereby showed up to three times increased durability. 
      2. Destructive test. The required destructive force was measured for five samples of two worst-case SQ.line® KERRISONs and previous Aesculap KERRISONs each, biting on a metal plate. The SQ.line® KERRISONs withstood significantly greater forces on the cutting edge than the corresponding previous Aesculap KERRISONs. 
      3. Performance test aged. Five samples of the most delicate SQ.line® KERRISON bone punch with three corresponding previous Aesculap KERRISONs were compared. After aging the SQ.line® KERRISONs by 500 reprocessing cycles, they successfully passed all defined test criteria for the wearing parts. The SQ.line® KERRISON outperformed the previous Aesculap KERRISONs. 
      4. Gloss value measurement. The gloss values of two new and five aged SQ.line® KERRISONs were measured on three defined areas from two different angles each. The results were compared to the values of uncoated Aesculap KERRISONs. The processing had no significant influence on the reflection behavior. The Noir® plus coating reduced reflections on the slider by 70% to 86%, on the main part by 47% to 63% and on the handle by 19% to 76% depending on the direction of measurement.
      5. Jamming test. Five samples of three different SQ.line® KERRISONs and previous Aesculap KERRISONs were tested on lamb spine with 50 repeated punches. The SQ.line® KERRISON showed no jamming for the duration of the test.
      6. Usability test with neurosurgeons. The usability test with neurosurgeons was performed to validate multiple customer requirements in terms of the performance and the ergonomics of SQ.line® KERRISON. The test was performed with 12 neurosurgeons within a simulated clinical environment. The performance and the ergonomic properties were rated positive.
      7. Usability test with CSSD and OR personnel. The usability test with CSSD and OR personnel was performed to validate multiple customer requirements in terms of the reprocessing and handling of the upwards cutting SQ.line® KERRISON. Ten people with an average CSSD experience of more then five years where interviewed. The suitability for reprocessing and the handling were rated positive.
      8. Handle comfort evaluation report. The SQ.line® KERRISON handle was compared in terms of comfort during use to its predecessor and one of its competitor’s handle. It is based on the visualization of prevailing surface pressure distributions during the actuation by means of pressure measuring foil. The SQ.line® KERRISON showed smaller areas of high surface pressure and a more homogeneous pressure distribution. 

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