Sulzer Orthopaedie Ag

Schneider (europe) A.g.

Mathias Heller

Fernando Suarez

Rainer Amann

Alfonso Medina Fernandez-Aceytuno

Jakob Willi

Roland Hirt

Werner Fritz Dubach

Hans-Georg Willert

Lorenzo Spotorno

Anton Spaltenstein

Willi Frick

The invention shows a filling transfer apparatus for bone cement with a cylindrical, upwardly open mixing container ( ) and a filling transfer piston ( ) which can be inserted therein, which is removably connected to the sleeve ( ) of a cement injector ( ) and which has an opening ( ) through which the mixed bone cement ( ) can be transferred into the sleeve ( ) through a pressing down of the filling transfer piston ( ). In this an ejection piston ( ) is inserted in the sleeve ( ) and has an aperture ( ) in the region of the opening ( ) for the through-flowing cement which can be closed by a plug ( ) after the removal of the cement injector ( ).

Filling transfer apparatus for bone cement

The invention shows a filling transfer apparatus for bone cement with a cylindrical, upwardly open mixing container and a filling transfer piston which can be inserted therein, which is removably connected to the sleeve of a cement injector and which has an opening through which the mixed bone cement can be transferred into the sleeve through a pressing down of the filling transfer piston. In this an ejection piston is inserted in the sleeve and has an aperture in the region of the opening for the through-flowing cement which can be closed by a plug (,) after the removal of the cement injector.

With the invention blocking systems for the medullary canal (,) of a tubular bone (,) are shown which have a blocking element (,) in order to hold bone cement (,) back from cemented prosthesis shafts (,). Because a deformable plug (,) which can be decomposed in the body is placed on between the blocking element (,) and the shaft end (,), which prevents an advance of liquid bone cement (,) in the capacity of a fill-in and which permits a penetration of the end (,) of the prosthesis shaft (,), a cement socket without a base arises which permits settling movements of the shaft in the hardened bone cement.

Blocking system for the medullary canal of a tubular bone

A transport and processing apparatus for a two-component material, in particular for bone cement, has a liquid component (1) and a powder component (2) which are separated by a membrane (3) and each occupy a transport chamber (4, 5) in a closeable container (6, 7) which has an expulsion piston (8) at one end and an opening (9) for the expulsion of mixed two-component material at the opposite end. The transport chamber (4) for the liquid component has a ring shape and a central aperture (34) for expelling the mixed two-component material through the aperture (34). The membrane is destroyed by a relative movement between the transport chamber for the liquid component (1) and a solid body (12, 17) enclosed in the container in order to effect a flow of the liquid component (1) into the transport chamber (5) for the powder component (2) and to enable the mixing with a mixing piston (11).

Transport and processing apparatus for a two-component material

The invention shows a filling apparatus for the introduction of bone cement into the intramedullary cavity of a bone, preferably into the cavity of a femur bone. The apparatus has a filling cannula, at the end of which a rubber sleeve in the form of a sheet metal bell is fastened which projects with its movable part radially beyond the diameter of the filling cannula and axially beyond a lowermost outlet aperture of the filling cannula. Because the sleeve is executed in the lower expandable part with a thickness 1 mm&lt;s&lt;2 mm and is fastened above an uppermost outlet aperture of the filling cannula at a distance 3 mm&lt;1&lt;50 mm and projects with its lower edge beyond a lowermost deflection edge 11a of a lower outlet aperture by a distance 5 mm&lt;a&lt;50 mm, its cross-section adapts to the cavity wall when being introduced without getting caught up and seals it during the expulsion of the bone cement.

Filling apparatus for bone cement

The balloon catheter comprises a shaft with an elongated dilatation balloon mounted in the vicinity of the distal end thereof. Member for preventing expansion of balloon segments are mounted on shaft proximally of the balloon and comprise an armature enclosed in a sleeve moveable over a proximal portion of the balloon.

Balloon catheter and stent delivery device

The balloon catheter comprises a shaft with an elongated dilatation balloon mounted in the vicinity of the distal end thereof. Armature for preventing expansion of balloon segments are mounted on shaft proximally of the balloon and include an armature enclosed in a sleeve moveable over a proximal portion of the balloon.

Growing community of inventors

Winterthur, Switzerland

Mathias Heller