Ao Technology Ag

Armando Gisep

Norbert Suhm

Philip Kuhn

Vanessa Boner

A cannula () comprising a central axis (), a front end () and a through channel () coaxial or parallel to said central axis () and defining a peripheral wall () of said cannula (), wherein A) said cannula () further comprises at least two perforations () penetrating said peripheral wall () transversely to said central axis (); B) said through channel () is open at said front end (); and C) the cross section of said through channel () has a contraction () with a diameter dlocated between the front most of said at least two perforations () and said front end () which is formed as a guidance for a wire (). A device () for liquid jet irrigation of bone comprising such a cannula () and a wire ().

Cannula and device for liquid jet irrigation of bone

A cannula () comprising A) a central axis (), a front end (), a rear end () and a channel () coaxial or parallel to said central axis () and defining a peripheral wall () of said cannula (); B) referencing means () at said rear end (), so that said cannula () can be brought in a desired position relative to a cavity () in a bone; wherein C) said cannula () further comprises at least two perforations () penetrating said peripheral wall () transversely to said central axis (); and D) said at least two perforations () are arranged in a portion () of said peripheral wall () which extends over an arc () orthogonal to said central axis () with a central angle &#x3b1;&#x3c;270&#xb0;. A method for applying bone cement into a bone structure comprising the steps of: A) selecting at least one region in a bone where the trabecular bone structure is to be augmented; B) producing at least one cavity () communicating with said at least one bone region; C) applying a fluid jet lavage towards said at least one bone region, and D) providing bone cement to said at least one bone region.

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Davos Dorf, Switzerland

Armando Gisep