Abstract: A vitreous body surgical probe that includes a probe main body having sufficient bending rigidity, and that can make it easy to collect vitreous bodies etc. in the vicinity of the retina which are difficult to reach using the conventional vitreous body surgical probe while securing sufficient suction efficiency. The vitreous body surgical probe includes: a probe main body having a pipe shape; an end part having an approximately tube shape, which is connected to the very end part of the probe main body, has a smaller diameter than the probe main body, and includes a sealed tip surface and an opening in the side; and a cutter, which has matching diameters to respective inner diameters of the probe main body and the end part, has a blade part on a tip, and slides along inner surfaces of the probe main body and the end part.

Abstract: A vitreous body cutter that allows wide movement of an opening position at the end part of a pipe even when the pipe is thin and that allows suction of vitreous bodies etc. in a wide range. The vitreous body cutter includes: a pipe having an opening on the side of an end part; a cutter, which slides along the inner surface of the pipe; a power output section, which is connected to the pipe and slides the cutter; and an outer case, through which the pipe passes, and which includes the power output section inside; and further includes a joint for connecting the outer case to a cannula attached to an eyeball. The protrusion length of the pipe from the outer case can be changed.

Abstract: [Problem] To rationalize production steps for a medical stapler. [Solution] An anvil (A): that forms a medical staple (3) supported in conjunction with a ram (5) in a medical stapler; sutures biological tissue; has dimensions corresponding to the formed peak section in the staple (3) after forming; and has a support section (11) that supports the crown (3b) of the staple (3), and a chamfered corner section (12) formed along both end sections in a direction along the crown (3b) of the staple (3) in the support section (11), which comes in contact with the crown (3b) when the supported staple (3) is formed and regulates a curved section thereof. The chamfered corner section (12) is cured by plastic working and formed.

Abstract: There is provided a packaging material for a suture thread with needle allowing extraction of the suture thread with needle from the packaging material without the suture thread being entangled, and making it difficult for the suture thread to be scraped at a point of the packaging material when extracting the suture thread with needle stored in the packaging material. The packaging material folded in three or more for storing the suture thread with needle includes a curved cutout part on an end part of the packaging material in an open state. A through-hole for the suture thread is formed by a crease and the curved cutout part when the packaging material is folded so that the curved cutout part is positioned on the inner side of the packaging material), and the suture thread passes through the through-hole when extracting the stored suture thread with needle from the packaging material.

Abstract: A medical knife which maintains low penetration resistance, without the maximum-width parts of the medical knife creating sudden changes in penetration resistance even when passing through tissue. Knife includes a pointed tip, a cutting part which has edges having first oblique faces which are formed along the outer periphery, and second oblique faces which are formed inside the first oblique faces. Maximum-width parts are formed contiguously with the cutting part. A shank part is formed contiguously with the maximum-width parts. The cutting part is formed in such a way that the shape of the planar projection thereof becomes wider from the pointed tip towards the maximum-width parts, and the first oblique faces extend further towards the shank part side than the second oblique faces over at least one portion of the area running from the maximum-width parts to the shank part.

Abstract: The goal is to provide a medical suture needle having, as the material, austenite stainless steel with a structure that is elongated in a fiber form while improving the hardness and flexural strength of the cutting portion. A medical suture needle is made of austenite stainless steel having a structure that is elongated in fiber form, and has a cutting portion and a body portion with a triangular cross-sectional shape that is continuous with said cutting portion. The cutting portion has cutting edges, at least one surface of which is formed by a pressed surface, and which are formed by the intersection of said pressed surface with two sharpened surfaces, and a cutting edge that is formed by the intersection of the two sharpened surfaces. The tip where the various cutting edges and converge is positioned in the center of the pressed surface.

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: There are provided a medical staple realizing smooth feeding when loaded in a magazine and a magazine which can realize stable feeding by using the medical staple. Where the medical staple includes a body portion; and a pair of legs formed at both ends of the body portion, wherein the legs are tilted at an angle in which the legs become closer to each other and either one leg is twisted with respect to a plane including the body portion and the other leg in the out-of-plane direction. The magazine includes a body guiding portion which has a size substantially equal to or slightly smaller than the length of the body portions of the staples and carries and guides the body portions thereon; wherein the plurality of staples are loaded in a state where the legs are tilted to the downstream side in the discharge direction and the body portions to the upstream side in the discharge direction.

Abstract: A method of producing a medical cutting instrument. Medical cutting instrument is provided which stably exhibits high joint strength obtained by brazing. Cutting instrument is configured by providing a working section to a front end of a shank section. Working section consists of a carbide or a ceramic, shank section being constructed from round stainless steel bar or round tool steel bar. Shank section and working section are connected through a brazed section. Brazed section is portion at which shank section and working section are brazed together while brazing surfaces, which are provided with protrusion sections formed on shank section and/or working section, are caused to be in contact with each other. Protrusion sections each have sloped surfaces having an apex, and the height of the sloped surfaces is set in range of 0.5%-8%, inclusive, of the diameter of the brazing surface of the shank section.

Abstract: A medical knife configured such that a cutting blade does not face upward when placed on a stand. A medical knife (10) includes a handle (20) and a cutting portion (30). The handle (20) includes a protrusion (20a) that makes point contact with a flat surface or makes line contact with the flat surface along the axis of the handle when trying to place the medical knife on the flat surface with a cutting blade (30a) of the cutting portion (30) of the medical knife facing upward. Moreover, the protrusion (20a) makes contact with a horizontal surface at a position deviating from a position defined by a line extending downward vertically from the center of gravity of the medical knife (10).

Abstract: A method of manufacturing a straight knife includes pressing one end of a rounded austenitic stainless steel rod flat and press-cutting away an excess portion of the flattened end to form a blade; grinding the blade to form a slanted surface and an edge along at least a portion of the periphery of the blade; removing burrs along the slanted surface and the edge of the blade by electrolytic polishing or chemical polishing; and continuing with the electrolytic polishing or chemical polishing to form, at a tip of the slanted surface, a cutting portion of the blade having a cross-sectional shape defined by convex curves.

Abstract: A method of packaging medical supplies includes overlapping a front film onto a back film, at least one of the front and back film being transparent and bacteria impermeable and does not transmit molecules as large as or larger than O2, extending a material that is gas permeable and bacteria impermeable along an opening side of at least one of the front and back film, and sealing the periphery of the front and back films except for the opening to form a packaging bag; inserting medical supplies in the packaging bag and then sealing the bag; sterilizing an interior of the packaging bag with EO gas injected through the material that is gas permeable and bacteria impermeable, removing the gas after sterilization and drying; and sealing the packaging bag so that the material that is gas permeable and bacteria impermeable does not communicate with the inside of the packaging bag.

Abstract: There is provided a cannula that is capable of controlling itself from easily slipping out from an eyeball when a surgical tool or the like is moved, does not damage the eyeball even when the base of the cannula and the eyeball make contact, and controls a pipe from detaching from the base. The cannula is pierced through the eyeball in ophthalmic operations and includes a metal pipe for piercing through the eyeball A; and a base joined to an end side of the pipe and made of a material having flexibility. Moreover, the center part of an eyeball side end surface of the base should be depressed, and the shape of the contact portion of the base should be changed when the base makes contact with the eyeball.

Abstract: Provided is a medical knife which makes it possible to maintain low penetration resistance, without the maximum-width parts of the medical knife creating sudden changes in penetration resistance even when passing through tissue. A knife comprises: a pointed tip; a cutting part which has edges consisting of first oblique faces which are formed along the outer periphery and second oblique faces which are formed inside the first oblique faces; maximum-width parts; and a shank part which is formed contiguously with the maximum-width parts. The cutting part is formed in such a way that the shape of the planar projection thereof becomes wider from the pointed tip towards the maximum-width parts, and the first oblique faces extend further towards the shank part side than the second oblique faces over at least one portion of the area running from the maximum-width parts to the shank part.

Abstract: A marker formed on a stent which is to be mounted within a human body, the marker being formed without applying gold plating or gold foil onto the stent and allowing the position of the stent in the human body to be confirmed by a recognition means. A marker (A, B) used to confirm the position in a human body of a stent (C) consisting of wires is formed by fitting pipes (10-12), which consist of a raw material which can be recognized by a recognition means, on a portion at which at least two wires constituting the stent (C) are located close to each other. The stent (C) comprises a stent main wire (1) formed in a zigzag pattern, and the pipes (10-12) are fitted to zigzag-shaped turn-back sections (E) of the stent main wire (1).

Abstract: A medical stapler according to the present invention includes a magazine containing staples, a rail for aligning the staples, and a mechanism for punching out staples; a lever for actuating the mechanism for punching out the staples; and a housing for enclosing and connecting the magazine and the lever. An inner surface of the housing includes a linear positioning portion continuing from an opening of the housing, and a latching portion for latching the magazine, a surface of the magazine tangent to the inner surface of the housing includes a positioning portion conforming to the positioning portion of the housing, and a latching portion conforming to the latching portion of the housing, and combining the positioning portion of the housing and the positioning portion of the magazine, and fitting the latching portion of the housing and the latching portion of the magazine connect the housing and the magazine.

Abstract: A gutta-percha remover suitable for removing a gutta-percha and having flexibility with good compliancy to curvature of a root canal and a superior removing capability for forming a sufficient gap bet the gutta-percha and the root canal wall is provided. The gutta-percha remover includes a shaft, a tapered working portion connected to the shaft, and one, two, or more screw-shaped grooves formed in the working portion. The cross-sections of a base end and a tip of the working portion are such that the tip of the working portion is greater in rate of the area of each cross-section to a corresponding circle circumscribing the cross-section.

Abstract: [Problem] To provide a medical cutting tool with low impalement resistance. [Solution] The edged medical cutting tool comprising a knife, trocar or cutting suture needle has a sharp edge (1) for incising living tissue and a flat part (2) that configures the edge, and the color of the portion of the flat part (2a) along the edge (1) differs from the color of the rest of the flat part (2b). The difference in color results from a difference in the thickness of an oxide film. Another edged medical cutting tool is configured of austenite stainless steel and has a sharp edge (1) for incising living tissue and a flat part (2) that configures the edge. The chrome content of the portion of the flat part (2a) along the edge is higher than the chrome content of the rest of the flat part (2b).