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So Convenient!

SQ.line® KERRISON a new level of convenience and efficiency

Less jamming

Intraoperative jams can disrupt surgical procedures. We engineered the SQ.line® KERRISON with a new low-friction coating to reduce jamming. [3] This precision tool is designed to handle even the toughest tissue without getting stuck. [1]

Controlled and fast removal

Precision is key in neurosurgery. That's why the SQ.line® KERRISON is designed to provide a controlled and fast removal of punched bone and tissue [1] during neurosurgical procedures.

Performance

Guiding principle for easy and reliable punching [4], [5], [3] 

Reduced jamming under regular usage and maintenance due to Noir® plus coating [6]

 

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Durability

New, harder material for ​increased durability [4]

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Easy-to-clean

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]

Optimised for back-hand ​punching [3]

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So Convenient!

SQ.line® KERRISON related information

[1] 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. 

[2] Cleaning validation without manual pre-cleaning.

[3] 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.

[4] 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.

[5] 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. 

[6] 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.

[7] 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.