Endoscopic treatment apparatus and method of manufacturing endoscopic treatment tool

An endoscopic treatment device, comprising:

• a sheath;
• a support member attached to a distal end of the sheath, the support member having a pair of frame portions at a distal end thereof;
• a rotation shaft engaged with ends of the pair of frame portions, wherein the rotation shaft joins the pair of frame portions;
• and
• a forceps including a first member, a second member and a third member, where the second member is located between the first member and third member, wherein the forceps includes a first forceps piece and a second forceps piece,
• wherein the first member and the third member are located between the pair of frame portions,
• wherein the first member has a first hole through which the rotation shaft passes and the second member has a second hole through which the rotation shaft passes and the third member has a third hole through which the rotation shaft passes, and
• wherein the first hole has a first inner diameter, the second hole has a second inner diameter and the third hole has a third inner diameter, where a size of the third inner diameter is smaller than a size of the first and the second inner diameter.

An endoscopic treatment device, comprising:

• a sheath;
• a support member attached to a distal end of the sheath, the support member having a pair of frame portions at a distal end thereof;
• a pin engaged with ends of the pair of frame portions, wherein the pin joins the pair of frame portions to form a first forceps piece;
• and
• a forceps including a first forceps piece and a second forceps piece,
• wherein the first forceps piece is formed from a first plate and includes a first member and a second member located between the pair of frame portions,
• wherein the first member has a first hole through which the pin passes and the second member has a second hole through which the pin passes, and
• wherein the first hole has a first inner diameter and the second hole has a second inner diameter, where a size of the first inner diameter is different from a size of the second inner diameter.