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: [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 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 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: Width of a space for receiving staples of a magazine is greater than length of the staples and is less than the sum of the length of the staples to ½ of the diameter of the staples, preferably ? thereof or less. The magazine is formed as half split bodies on either side of a rail along the length thereof, a convex positioning part is provided on one of the half split bodies, a concavity for engaging with the positioning convexity is formed on the other half split body, support holes for engaging with positioning parts are formed in the half split bodies, a locking part for holding engagement with the other half split body is provided on said one of the half split bodies, and a to-be-locked part for engaging with the locking part is formed on the other half split body.

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 medical stapler allowing an easy and secure connection of a magazine and a housing during assembly. A medical stapler 10 according to the present invention includes a magazine 2 that comprises therewithin staples 4, a rail 5 for aligning the staples 4, and a mechanism for punching out staples; a lever 3 for actuating the mechanism for punching out the staples; and a housing 1 for enclosing and connecting the magazine and the lever.

Abstract: There is provided a magazine capable of preventing jamming of staples in a medical stapler, and reducing manufacturing cost. Width of a space for receiving staples 3 of a magazine 40 is greater than length of the staples 3 and is less than the value resulting from adding length of the staples 3 to ½ of the diameter of the staples, preferably ? thereof or less. In addition to the above configuration, the magazine 40 is formed as half split bodies 41 and 42 on either side of a rail along the length thereof, a convex positioning part 41a is provided on one of the half split bodies, a concavity 42a for engaging with the positioning convexity is formed on the other half split body, support holes 41c and 42c for engaging with positioning parts are formed in the half split bodies, a locking part 41b for holding engagement with the other half split body is provided on said one of the half split bodies, and a to-be-locked part 42b for engaging with the locking part is formed on the other half split body.

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. A staple A includes a body portion 1; and a pair of legs 2 and 3 formed at both ends of the body portion 1, wherein the legs 2 and 3 are tilted at an angle in which the legs 2 and 3 become closer to each other and either one leg 3 is twisted with respect to a plane 4 including the body portion 1 and the other leg 2 in the out-of-plane direction.

Abstract: A surgical stapler has a body capable of containing a plurality of staples in an aligned state; a ram provided inside the body, having a central concave portion and pressure armatures on both sides of the concave portion; an anvil that, when the armatures of the ram contact both sides of a crown of a staple, forces the center of the crown into the concave portion of the ram; and a trigger rotatably supported on the body so as to cause relative movement between the ram and the anvil. The trigger as a moving member and the body as another member strike each other so as to produce a sound and/or a vibration indicating that a staple sandwiched between the ram and the anvil is bent by the advance of the anvil into the concave portion of the ram and bending of the staple is completed.

Abstract: The present invention relates to a medical stapler for suturing body tissue by forming a medical staple supported by an anvil by bringing a ram close to the anvil, comprising a housing, a lever, an anvil and a ram, and the ram is composed of metal material and the drive portion formed on part of the lever and the ram guide portion provided in the housing are composed of synthetic resin and a gap between a leg formed on the ram and the anvil opposing the leg is set to a dimension allowing the medical staple to be formed into an excellent shape with a light load.

Abstract: A surgical stapler has a body capable of containing a plurality of staples in an aligned state; a ram provided inside said body, having a central concave portion and pressure armatures on both sides of the concave portion; an anvil that, when the armatures of said ram contact both sides of a crown of a staple, forces the center of the crown into the concave portion of the ram; and a trigger rotatably supported on the body so as to cause relative movement between the ram and the anvil. A moving member strikes another member so as to produce a sound or a sensation of impact after a staple sandwiched between the ram and the anvil is bent by the advance of the anvil into the concave portion of the ram and bending of the staple is completed.