Outstanding small diameter

Laparoscopic liver resection is a young, aspiring technique of modern surgery. Compared to open surgery, laparoscopic liver resection is associated with less blood loss, fewer complications and shorter recovery times.1 As an ideal tool for a minimally invasive procedure Söring offers the extremely light and perfectly balanced LUD.

With its extraordinary outer sheath diameter of only 5.5 millimetres, it is the thinnest laparoscopic ultrasonic dissector worldwide. During surgery the LUD can be easily guided through trocars2 placed in different positions, thus enabling a procedure from different angles. Thanks to its unequalled long sonotrode, it merges perfectly with the instrument portfolio of a minimally invasive liver resection. Similar to the instruments for open liver surgery, the LUD convinces with its effective aspiration performance, its extremely compact design and is full autoclavability. Moreover, it is immediately ready to use due to its quick and simple set-up.


  • thinnest outer sheath diameter worldwide for maximum flexibility2
  • low weight for fatigue-free operation
  • effective aspiration performance
  • quick and easy set-up

What is needed?

  • Macro instrument LUD
  • ultrasonic generator SONOCA 300 and accessories


1 Kobayashi S, Fukui K, Takeda Y, Nakahira S, Tsujie M, Shimizu J8, Miyamoto A, Eguchi H, Nagano H, Doki Y, Mori M.: Short-term outcomes of open liver resection and laparoscopic liver resection: Secondary analysis of data from a multicenter prospective study (CSGO-HBP-004). Ann Gastroenterol Surg. 2017; 2(1):87-94. doi: 10.1002/ags3.12046. eCollection 2018 Jan

2 compatible with trocars < 10 mm

Macro instrument for open liver surgery

Macro instruments

without and with hiqh-frequency function