Abstract: A nose knife with good usability and little interference with tools such as an endoscope in nasal cavity surgery is provided, and includes a handle, a shank, and a blade. The shank includes a straight part connected straight to the handle along the same axis, and a curved part integrally connected to the front end of the straight part. The blade is provided at the front end of the curved part. A tip of the blade is angled 65 degrees to 75 degrees inclusive relative to the axis of the straight part.

Abstract: Strength of a front end part having a sharp point of a medical suture needle is maintained and resistance when piercing tissue is reduced. There is provided a medical suture needle having a triangular cross section made of austenitic stainless steel having a fibrously extending structure, having two first slanted surfaces (11) ground and sandwiching a ridge (20), and a bottom surface (13) sandwiched between the two first slanted surfaces and ground. The ridge is formed comprising a first cutting blade (1) that is formed by the two first slanted surfaces (11) intersecting, a ridge part (20) that is formed on a body part side of the first cutting blade without the first slanted surfaces (11) intersecting, and a second cutting blade (2) that is formed by two second slanted surfaces (12) ground, intersecting and sandwiching the first cutting blade (1) on a front end side of the first cutting blade (1).

Abstract: A nose knife with good usability and little interference with tools such as an endoscope in nasal cavity surgery is provided. A nose knife (10) of the present invention includes a handle (13), a shank (11), and a blade (12). The shank (11) includes a straight part (11a) connected straight to the handle (13) along the same axis, and a curved part (11b) integrally connected to the front end of the straight part (11a); and the blade (12) is provided at the front end of the curved part (11b), and direction of a blade tip (12b) of the blade (12) is 65 degrees to 75 degrees inclusive to the axis line of the straight part (11a).

Abstract: Strength of a front end part having a sharp point of a medical suture needle is maintained and resistance when piercing tissue is reduced. There is provided a medical suture needle having a triangular cross section made of austenitic stainless steel having a fibrously extending structure, having two first slanted surfaces (11) ground and sandwiching a ridge (20), and a bottom surface (13) sandwiched between the two first slanted surfaces and ground. The ridge is formed comprising a first cutting blade (1) that is formed by the two first slanted surfaces (11) intersecting, a ridge part (20) that is formed on a body part side of the first cutting blade without the first slanted surfaces (11) intersecting, and a second cutting blade (2) that is formed by two second slanted surfaces (12) ground, intersecting and sandwiching the first cutting blade (1) on a front end side of the first cutting blade (1).

Abstract: The problem that a metal wire joined integrally to a hole formed in a proximal end face of a medical suture needle is susceptible to bending damage is reduced. A suture needle A has a blind hole 5 which is formed in a proximal end face 3, inserts the end of a wire 10 thereinto, and joins the wire 10 thereto by caulking, and a counterbore 6 which is formed on the proximal end face 3 side of the blind hole 5 and has a dimension D at least in the proximal end face 3 larger than a dimension d of the blind hole 5 and a depth L smaller than a depth of a caulked portion with respect to the blind hole 5. A suture needle with wire inserts the end of the wire 10 into the blind hole 5 to caulk the outer circumference of the suture needle corresponding to the blind hole 5, thereby integrally joins the wire 10 thereto.

Abstract: A stent has a stent main wire. The strut is disposed adjacent to the stent main wire and a junction pipe disposed around the stent main wire and strut so as to affix the stent main wire to the strut. A locking part is formed at an end of the strut to prevent the strut from sliding out of the junction pipe. The locking part comprises a folded back portion, wherein a distal most end of the folded back portion abuts with a distal most end of the junction pipe, a swelling portion, wherein a distal most end of the swelling portion is abutting a distal most end of the junction pipe, or a bent portion, wherein a distal most end of the bent portion is abutting with a distal most end of the junction pipe.

Abstract: A surgical saw for cutting bone that can be used with ease in tight places yet maintain sufficient cutting power. The surgical saw 10 has a flexible linear body made of twisted stainless steel wire and cutting parts formed on the flexible linear body. The cutting parts are made of abrasive material affixed to the flexible linear body 12a alternating with portions of the flexible linear body with no abrasive particles 12b. Auxiliary cutting parts 13 of lesser cutting power may be provided along both lateral sides of each of the cutting parts 12.

Abstract: A stent is provided, which joins a plurality of stent components via a strut which, even when repeatedly bent over a long period of time, resists breaking. In particular, a stent is provided having a joining portion which integrally joins a stent main wire and a strut, the stent main wire and the strut being fitted into a restraining pipe in a non-joining portion of the stent main wire and the strut near the end of the joining portion. This construction restrains the relative movement of the stent main wire to the strut 4 is restrained and decreased, thus reducing fatigue.

Abstract: It is an object of the present invention to provide a stent including a plurality of loop stents connected with one another using a plurality of loop struts and adapted to bend uniformly as a whole. A stent 1 has a connection part in which wire parts including a stent main wire 2 and a strut 4 are connected to each other through a junction pipe 7, wherein the strut 4 is larger in diameter than the stent main wire 2.

Abstract: A stent formed in a shape of a generally tubular body having a central axis. The stent has a spring function with which the tubular body is diameter-contractible toward the central axis, and the tubular body is expandable to an initial diameter after contraction. The stent maintains a configuration curved along a longitudinal direction of the stent when the stent is not inserted in a sheath. The stent is elongated in a form of a generally straight line along the longitudinal direction when the stent is inserted into the sheath. The stent, being housed in a sheath in the form of a generally straight line, is inserted into a diseased part together with the sheath, is released from the sheath, and radially expands, outwardly after release, to restore and maintain a configuration curved along the longitudinal direction of the stent.

Abstract: It is an object of the present invention to prevent a wire part including a stabilizer hook, a strut or the pulling-back member from separating from a connection part even when a force in a tensile direction is applied to a stent. A stent 1 having a connection part in which wire parts including a stent main wire 2, a strut 4 and a stabilizer hook 5 are connected to each other through a junction pipe 7, wherein a locking part which is locked to the junction pipe 7 is formed on the wire part which is inserted into the junction pipe 7.

Abstract: In a stent which joins a plurality of stent components by a strut, even when the repeated bending acts on the stent for a long period, the breaking of the strut can be prevented. In a stent 1 having a joining portion 7 which integrally joins a stent main wire 2 and a strut 4, the stent main wire 2 and the strut 4 are fitted into a restraining pipe 8 in a non-joining portion of the stent main wire 2 and the strut 4 near the end of the joining portion 7. The relative movement of the stent main wire 2 and the strut 4 is restrained. The amount of movement of the strut 4 relative to the stent main wire 2 can be decreased to reduce fatigue.

Abstract: A blood vessel knife allows a doctor to easily see a knife main body when holding it for surgical operation. In a blood vessel knife having a cutter holder at a tip portion of a rod-shaped grip, and a knife main body attached to a tip of the cutter holder, at least one of a first bent portion 2a formed at an end of the grip 2 and a second bent portion 3a formed on the cutter holder 3 is provided; the cutter holder 3 can be detachably engaged with the tip portion from either an inside or outside thereof; and an angle between the grip 2 and the knife main body is changeable whether the cutter holder is engaged from the inside or the outside of the tip portion. When gripping the blood vessel knife 1, doctors can easily see the knife main body 4 due to the second bent portion 3a, and the knife main body 4 diagonally penetrates a blood vessel 15 to prevent the knife main body 4 from penetrating a lower blood vessel wall 15b.

Abstract: A surgical saw for cutting bone that can be used with ease in tight places yet maintain sufficient cutting power. The surgical saw 10 has a flexible linear body made of twisted stainless steel wire and cutting parts formed on the flexible linear body. The cutting parts are made of abrasive material affixed to the flexible linear body 12a alternating with portions of the flexible linear body with no abrasive particles 12b. Auxiliary cutting parts 13 of lesser cutting power may be provided along both lateral sides of each of the cutting parts 12.

Abstract: A stent (1) formed in the shape of a generally tubular body which has a spring function with which the tubular body is diameter-contractible toward the central axis (C) of the tubular body and which is expandable to the initial diameter after contraction, the stent being loaded into a sheath and being to be delivered to a diseased part to be treated, wherein the stent (1) maintains a configuration curved along the longitudinal direction of the stent when not inserted in the sheath, and (B) when the stent (1) is inserted into the sheath, the stent (1) is contracted toward the central axis (C) of the stent (1) and is elongated in the form of a generally straight line along the longitudinal direction of the stent (1), whereby the stent (1) is loaded into the sheath in the form of a substantially straight line, and the stent can remarkably improve safety and conformity during delivery in the artery, and the like.

Abstract: To provide a blood vessel knife with which a doctor is easily see a knife main body while holding it with his or her hand, and it becomes easier to prevent the cutter from penetrating the lower blood vessel wall 15b during heartbeats.

Abstract: A stent manufactured for treating internal tubular organs, typically for treating a blood vessel, in which the stent has a sufficient diametral shrinkage ability and an ability for returning back to the original diameter thereof. A zigzag shape-memorized stent A is manufactured by performing shape memorization where a wire 1 is fixed in a zigzag bent manner in which the wire is made from a shape-memorizing Ni—Ti alloy not having been subject to shape-memorization of any sort. A stent A being shape-memorized with a zigzag shape as well as a cylindrical shape could be manufactured by performing shape-memorization process in which a stent having been shape-memorized into a zigzag shape with the end portions thereof being connected by overlapping with each other, is attached to a cylindrical jig.

Abstract: A stent manufactured for treating internal tubular organs, typically for treating a blood vessel, in which the stent has a sufficient diametral shrinkage ability and an ability for returning back to the original diameter thereof.

Abstract: Making a stent in accordance with information regarding tubular living-body tissue of each individual for treating such as aneurysm.

Abstract: The present invention relates to a suturing needle for medical use comprising a needle tip portion for piercing a body tissue, a distal end portion for coupling a suture and a body portion formed between the needle tip portion and the distal end portion The body portion is constituted of a pair of flat surfaces opposing to each other and a pair of grooves opposing to each other in a direction intersecting with the opposing direction of the flat surfaces.