JPS63151111U

JPS63151111U -

Info

Publication number: JPS63151111U
Application number: JP4546787U
Authority: JP
Priority date: 1987-03-26
Filing date: 1987-03-26
Publication date: 1988-10-04

Description

[Brief explanation of the drawing]

第１図は、本考案第１実施例を示す把持鉗子の
要部側面図、第２図は、上記第１図の把持鉗子の
閉状態を示す側面図、第３図は、上記第１図、第
２図に示す把持鉗子の把持爪の噛合状態を前面よ
り見た部分正面図、第４図は、上記第１図に示す
把持鉗子の斜視図、第５図は、上記第１図、第２
図の把持鉗子が異物を噛え込んだ状態を示す側面
図、第６図は、本考案の第２実施例を示す把持鉗
子の要部側面図、第７図は、上記第６図の把持鉗
子の閉状態を示す側面図、第８図は、本考案の第
３実施例を示す把持鉗子の要部側面図、第９図は
、上記第８図の把持鉗子の閉状態を示す側面図、
第１０図は、本考案の第４実施例を示す把持鉗子
の要部側面図、第１１図は、上記第１０図に示す
把持鉗子の把持爪の噛合状態を前面より見た部分
正面図、第１２図は、本考案の第５実施例を示す
把持鉗子における把持爪のみの部分側面図、第１
３図は、従来の把持鉗子の例を示す要部を拡大し
た一部を断面で表した側面図、第１４図は、上記
第１３図の把持鉗子における先端カバー部材のみ
の斜視図、第１５図は、上記第１３図の把持鉗子
の開状態を示す要部側面図、第１６図は、上記第
１５図の把持鉗子の正面図である。１……把持鉗子、３Ａ，３Ｂ……先端鉗子部、
４Ａ，４Ｂ……鉗子部材、８……シース、９……
操作ワイヤ、１０……先端カバー部材、４Ａ_０，
４Ｂ_０……中央基部、４Ａａ，４Ｂａ……アーム
、１３……リンク機構、３Ａ_０，３Ｂ_０，１１Ａ
，１１Ｂ，２１Ａ，２１Ｂ，３１Ａ，３１Ｂ，４
１Ａ，４１Ｂ，５１Ａ，５１Ｂ……把持部。 1 is a side view of essential parts of the grasping forceps showing the first embodiment of the present invention, FIG. 2 is a side view showing the grasping forceps shown in FIG. 1 in a closed state, and FIG. 3 is a side view of the grasping forceps shown in FIG. , FIG. 4 is a perspective view of the gripping forceps shown in FIG. 1, FIG. 5 is a partial front view of the engaged state of the gripping claws of the gripping forceps shown in FIG. Second
Fig. 6 is a side view of the main parts of the grasping forceps showing the second embodiment of the present invention, and Fig. 7 is a side view showing the state in which the grasping forceps shown in Fig. 6 have bitten a foreign object. FIG. 8 is a side view of the main parts of the gripping forceps showing the third embodiment of the present invention; FIG. 9 is a side view showing the gripping forceps shown in FIG. 8 in the closed state; FIG. ,
FIG. 10 is a side view of essential parts of a grasping forceps showing a fourth embodiment of the present invention, FIG. 11 is a partial front view of the engaged state of the grasping claws of the grasping forceps shown in FIG. 10, viewed from the front; FIG. 12 is a partial side view of only the gripping claws in the gripping forceps showing the fifth embodiment of the present invention;
3 is a side view showing an example of a conventional grasping forceps, with a part of the main part enlarged and shown in cross section, FIG. 14 is a perspective view of only the tip cover member of the grasping forceps shown in FIG. 13, and FIG. This figure is a side view of the essential parts of the grasping forceps shown in FIG. 13 above, showing an open state, and FIG. 16 is a front view of the grasping forceps shown in FIG. 15 above. 1 ...Gripping forceps, 3A, 3B...Tip forceps part,
4A, 4B...forceps member, 8...sheath, 9...
Operation wire, 10...Tip cover member, 4A ₀ ,
4B ₀ ... Central base, 4Aa, 4Ba ... Arm, 13 ... Link mechanism, 3A ₀ , 3B ₀ , 11A
, 11B, 21A, 21B, 31A, 31B, 4
1A, 41B, 51A, 51B...Gripping portion.

Claims

[Scope of Claim for Utility Model Registration] A sheath that is inserted into a channel for inserting a treatment instrument in an endoscope, a distal end cover member fixed to the distal end of the sheath, and a center base that is pivotably attached to the distal end cover member. A forceps member whose distal end forceps parts engage with each other in a supported closed state to form a semicircular arc shape, an arm inserted into the sheath and extending from the central base, and connected to the forceps member via a link mechanism. and a forceps opening/closing operation wire, characterized in that the tip forceps section is provided with sharp gripping claws that are exposed when the forceps member is in an open state and are used to prevent the object from falling. forceps.