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So Qonsistent!

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

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    of bone punches are defective: you deserve better

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]

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

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Durability

New, harder material for ​increased durability 1

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Easy-to-clean appearance

Reduced overlapping, no lumen ​for ejector

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Intuitiveness

Innovative latch concept for easy ​dis-/assembly 7

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Ergonomics

Wide ergonomic handles for ​pressure reduction 8

Optimized for back-hand ​punching 6

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Related documents

So Qonsistent!

SQ.line® KERRISON related information

References

  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.