Abstract: A medical suture needle made of stainless steel includes a cutting blade component and a body part continuing to the cutting blade component. The cutting blade component, whose degree of thickness decreases from the body part to a sharp point, includes a first cutting blade part and a second cutting blade part continuing from the first cutting blade part. The first cutting blade part includes two first slanted surfaces formed sandwiching an apex and a first bottom surface sandwiched by the two first slanted surfaces. Cutting blades are formed at an edge constituting the apex and at edges where the first bottom surface and the two first slanted surfaces intersect. The second cutting blade part includes first slanted surfaces, second slanted surfaces having rims approximately parallel to the apex and formed on the respective first slanted surfaces, and a second bottom surface sandwiched by the second slanted surfaces.

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 medical suture needle made of stainless steel includes a cutting blade component and a body part continuing to the cutting blade component. The cutting blade component, whose degree of thickness decreases from the body part to a sharp point, includes a first cutting blade part and a second cutting blade part continuing from the first cutting blade part. The first cutting blade part includes two first slanted surfaces formed sandwiching an apex and a first bottom surface sandwiched by the two first slanted surfaces. Cutting blades are formed at an edge constituting the apex and at edges where the first bottom surface and the two first slanted surfaces intersect. The second cutting blade part includes first slanted surfaces, second slanted surfaces having rims approximately parallel to the apex and formed on the respective first slanted surfaces, and a second bottom surface sandwiched by the second slanted surfaces.

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: There is provided a suture needle having a base end surface to which either both ends of a single suture thread or two suture threads are attached allowing easy and secure attachment even of a thicker suture thread than in the past. A suture needle, which is provided with a blind hole along the axis from a base end surface of the suture needle, and a suture thread attached by inserting the suture thread in the blind hole and crimping it, is characterized by having the blind hole opened in two places in the same base end surface, and thereby both ends of a single suture thread or two suture threads may be attached to the needle. Moreover, the blind holes opened in two places may be connected so as to make overall shape of the blind holes in the base end surface have a figure eight shape.

Abstract: A suturing needle, comprising needle tip portion (1) having needle tip (1a), tapered portion (2) continuing to needle tip portion (1), trunk portion (3) continuing to tapered portion (2), and thread attaching portion (4) continuing to trunk portion (3); needle tip portion (1) has circular section continuing to sharp needle tip (1a), angular section continuing to sharp needle tip (1a), circular section continuing to blunt needle tip (1a) or angular section continuing to blunt needle tip (1a): wherein trunk portion (3) has the relations R1?R2?R3, when peak (5) or joint portion between the two flat faces has diameter R1, crest of ridges has a roundness of R2, and a valley (7) has roundness R3; and valley (7) is formed to correspond partially to peak (5), and the thickness becomes continuously larger from tapered portion (2) to trunk portion (3).

Abstract: Provided is a suturing needle, which can be reliably held by a needle holder, which can transmit a high thrust, and which can reduce the fear of damaging a patient and the deformation when a strong force acts. The suturing needle has a representative constitution including a needle tip portion (1) having a needle tip (1a) for piercing the tissues, a tapered portion (2) continuing to the needle tip portion (1), a trunk portion (3) continuing to the tapered portion (2), and a thread attaching portion (4) continuing to the trunk portion (3) for connecting the suturing thread.

Abstract: A simple fabrication method for a suture needle coated with silicone, which prevents silicone from penetrating into a hole is provided. The fabrication method for a suture needle coated with silicone includes the steps of: facing a hole 12 formed at a base of an eyeless suture needle 10 downward and supporting it with a gripping unit; and coating silicone on the entire outside of the eyeless suture needle, making the inner wall of the hole be the base material of the eyeless suture needle. Consequently, the silicone can be prevented from intruding into the hole by a simple method.