Abstract: A medical device which absorbs a difference in dimension between the members, can be applied to an existing device without generating a dead space in a flow path of a therapeutic substance when administrating the therapeutic substance, and is high in versatility. The medical device includes a feeding member, a connected member and a joint member, and the joint member includes an inner tapered portion and an outer tapered portion, the joint member is configured so that the tip end of the joint member is located on the inner tapered connecting portion when the joint member is connected to the hub.

Abstract: A medical device which absorbs a difference in dimension between the members, can be applied to an existing device without generating a dead space in a flow path of a therapeutic substance when administrating the therapeutic substance, and is high in versatility. The medical device includes a feeding member, a connected member and a joint member, and the joint member includes an inner tapered portion and an outer tapered portion, the joint member is configured so that the tip end of the joint member is located on the inner tapered connecting portion when the joint member is connected to the hub.

Abstract: A forceps device includes a grasp portion, an operation portion equipped with a sliding portion and a rotation operation portion, an inner cable, an outer casing, a grip portion to be held when operating the operation portion, and a resin-coated portion. The proximal end side of the inner cable is mounted to the sliding portion and the distal end side is connected to the grasp portion. The proximal end side of the outer casing is mounted non-rotatably to the rotation operation portion and the distal end side is engaged rotatably with respect to the resin-coated portion and immovably in an axial direction with respect to the resin-coated portion. The sliding portion is mounted non-rotatably and slidably relative to the rotation operation portion. The rotation operation portion is rotatably connected to the grip portion and is provided at a proximal end side of the grip portion.

Abstract: To provide a filling material for a bone defect part, which reduces pain and any sense of discomfort and also promotes short-term bone repair. Provided is a filling material for a bone defect part, wherein the filling material is filled in a bone defect part formed between fracture sites in living bone and applies to the fracture site a pressing force in the direction in which the living bone extends from the defect part. Also provided is a filling material for a bone defect part where the filling material is laid in a predetermined length across the bone defect part and continuously applies the pressing force to the fracture site.

Abstract: The object of the present invention is to provide a cell induction material, which can be easily formed, has excellent moldability because sintering is unnecessary, and decreases a strain on a human body caused by the exposure of the ends of a titanium wire. A metal mesh made by stockinette stitching with titanium wire is formed into a predetermined shape, and a cell induction material obtained by pressing the formed metal mesh is used. Further, the cell induction material with substantially no ends of the titanium wire that can be sensed through the sense in the vicinity of the surface is used.

Abstract: [Problems] To provide a double needle enabling easy centesis in bones and cortex and easy alignment of an inner needle with an outer needle in an angular direction and capable of transmitting torque when the inner needle and the outer needle are rotated simultaneously. [Means for Solving Problems] This double needle (10) for medical treatment comprises the cylindrical outer needle (11) having an edge part (26) at its tip and the solid inner needle (12) detachably stored in the outer needle. When the outer needle (11) is rotated about its major axis, the rotating diameter of the edge part (26) is larger than the rotating diameter of a body part. Also, the double needle comprises a corotation mechanism (20) for the outer needle (11) and the inner needle (12).

Abstract: Using a bended puncturing needle, a through hole from the greater trochanter of a long tubular bone to the bone marrow cavity is formed, the catheter 61a, 61b is passed into the through hole, a physiological salt solution is injected from one of the catheter 61b, and the physiological salt solution and the bone marrow is stirred by the stirring wire 68, the obtained mixed liquid is aspirated and harvested by another catheter 61a, thereby a large amount of the bone marrow is harvested. A method enabling easy and a large amount harvesting of the bone marrow from long tubular bones such as femurs, in which a multi-lumen catheter can also be used as a catheter.