Abstract: The invention describes a bone anchor 76 comprising a head region 94 and supporting legs 78 and a method for soft tissue-bone grafting using the said bone anchor 76. A hole 84 is drilled through cortical bone 82 forming a socket 70 in a cancellous bone 90, and the bone anchor 76 is inserted therein thereby trapping ligaments 88a and 88b between the radially outermost portion of the anchor 76 and the inside surface of the socket 70. An optional expansion peg (not shown) is inserted into a hole 86 within the bone anchor 76, thereby causing the proximal ends of the legs 70 of the bone anchor 76 to expand radially causing the ligaments 88a and 88b to closely abut the cancellous bone 90 thereby encouraging the grafting process.

Abstract: The invention describes a graft suspension device 2 for suspending a ligament in a bone hole. The suspension device 2 comprises a first loop 4 and second loop 6 suspended from an anchor 8 and has a cradle 10 at the opposite end of the loop to the anchor. Ligament grafts (not shown) are looped over the cradle 10 and loose ends 30,32 may be pulled by finger loops 22, 24 whereby the surgeon can adjust the distance of the cradle 10 from the anchor 8 thereby tensioning the grafts as desired.

Abstract: The invention describes a graft suspension device 2 for suspending a ligament in a bone hole. The suspension device 2 comprises a first loop 4 and second loop 6 suspended from an anchor 8 and has a cradle 10 at the opposite end of the loop to the anchor. Ligament grafts (not shown) are looped over the cradle 10 and loose ends 30,32 may be pulled by finger loops 22, 24 whereby the surgeon can adjust the distance of the cradle 10 from the anchor 8 thereby tensioning the grafts as desired.

Abstract: A Catalyst for reducing the nitrogen oxides in flue gases by a reducing agent and a catalytically active composition are described. The catalyst increases resistance to catalyst poisons such as arsenic trioxide. The composition contains 60-90% by weight of titanium, 10-30% by weight of molybdenum, and 0.2-10% by weight of vanadium, as their respective oxides. A very pure titanium dioxide having less than 500 ppm of calcium and less than 100 ppm of iron, being 60% in the anastase modification. It has a mean particle size of 10 to 100 nm, a mean pore radius of 10 to 30 nm and a BET surface of 10 to 80 m.sup.2 per gram. The catalyst is prepared by wet-grinding a suspension of the titanium dioxide with the vanadium pentoxide and molybdenum trioxide in stated proportions. The suspension is then dried and precalcined for several hours at 450.degree. to 550.degree. C. The precalcined material is comminuted to diameters smaller than 180 .mu.m.

Abstract: A catalyst for reducing the nitrogen oxides in flue gases by a reducing agent and a catalytically active composition is described. The catalyst increases resistance to catalyst poisons such as arsenic trioxide. The composition contains 60-90% by weight of titanium, 10-30% by weight of molybdenum, and 0-10% by weight of vanadium, as their respective oxides. A very pure titanium dioxide having less than 500 ppm of calcium and less than 100 ppm of iron, and being 60% in the anastase modification. It has a mean particle size of 10 to 100 nm, a mean pore radius of 10 to 30 nm and a BET surface of 10 to 80 m.sup.2 per gram. The catalyst is prepared by wet-grinding a suspension of the titanium dioxide with the vanadium pentoxide and molybdenum trioxide mill in stated proportions. The suspension is then dried, and precalcined for several hours at 450.degree. to 550.degree. C. The precalcined material is comminuted to smaller than 180 .mu.m.

Abstract: A catalyst material for nitrogen oxide reduction in flue gases in the presence of ammonia, comprising hydrothermal titanium dioxide and the additives of vanadium oxide and one or more oxides of the elements tungsten, phosphorus, sulfur, chromium, zirconium, magnesium, copper, cobalt, iron, and uranium, which hydrothermal titanium dioxide and additives material is activated by grinding.

Abstract: Catalytic material for reducing nitrous oxides in flue gases in the presence of ammonia in which titanium oxide is used as the starting material and the latter is milled together with vanadium oxide and one or more oxides of the elements tungsten, molybdenum, phosphorus, chromium, copper, iron, uranium and is thereafter subjected to at least one thermal treatment. Tungsten and molybdenum are substituted here entirely or partially by phosphorus in the form of its oxides or phosphates.