1
Achim Gopferich, Werner Hosemann: Spacing device for releasing active substances in the paranasal sinus. Acclarent, Frost Brown Todd, June 3, 2014: US08740929 (21 worldwide citation)

A spacing device for use in fenestrations of the paranasal sinus, the device including a sheath which forms a hollow body defining at least two apertures. The sheath includes at least one layer loaded with an active substance. The ratio q of the external diameter ra of the hollow body to the interna ...


2
Achim Gopferich, Werner Hosemann: Spacing device for releasing active substances in the paranasal sinus. Salter & Michaelson, The Heritage Building, June 17, 2004: US20040116958-A1

The invention relates to a spacing device (stent) for use in fenestrations of the paranasal sinus. Said device consists of a sheath which forms a hollow body, surrounding an internal cavity. An active substance, which is released in a controlled manner by the spacing device, is contained in the shea ...


3
Achim Gopferich, Werner Hosemann: Spacing devices for releasing active substances in the paranasal sinus. Acclarent, Stout Uxa Buyan & Mullins, October 2, 2008: US20080243140-A1

The invention relates to a spacing device (stent) for use in fenestrations of the paranasal sinus. Said device consists of a sheath which forms a hollow body, surrounding an internal cavity. An active substance, which is released in a controlled manner by the spacing device, is contained in the shea ...