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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0724727 (1996-09-30) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 1245 인용 특허 : 0 |
An articulating surgical instrument which has an articulation transmission assembly for remotely articulating an end effector of the instrument is disclosed. Ratcheting rotation of a compressible deck within a detent housing of the assembly from a first locked position to a second locked position ca
An articulating surgical instrument which has an articulation transmission assembly for remotely articulating an end effector of the instrument is disclosed. Ratcheting rotation of a compressible deck within a detent housing of the assembly from a first locked position to a second locked position causes axial movement of an elongated transmission member for the articulation of the end effector from a first position to a second position angled from the first position. Also disclosed is a flexible neck assembly for articulating the end effector of the surgical instrument. Neck ribs, each having an interior plate and an exterior dish, extend from a central longitudinal rib separating a pair of flexible neck portions of the assembly. A pair of transmission band assemblies, each having an interior articulation band and an attached exterior reinforcement band, reciprocate in opposite directions within side slots of the neck ribs in response to actuation of the articulation transmission assembly. Reciprocation causes the flexible neck assembly to bend, effecting articulation. The shape of the neck ribs optimizes the radius of curvature when articulation is effected, and the reinforcement bands prevent buckling of the articulation bands.
[ What is claimed is:] [1.] An articulating surgical instrument comprising:a) a frame including a hand grip for gripping and manipulating said instrument at a first end of said instrument;b) a shaft extending from said frame, said shaft having a longitudinal axis;c) an end effector at an opposite en
[ What is claimed is:] [1.] An articulating surgical instrument comprising:a) a frame including a hand grip for gripping and manipulating said instrument at a first end of said instrument;b) a shaft extending from said frame, said shaft having a longitudinal axis;c) an end effector at an opposite end of said instrument for manipulating tissue to carry out a desired surgical function, said end effector being movable to provide articulation of said end effector from a first position generally parallel to said shaft longitudinal axis to a second position angled from said shaft longitudinal axis; andd) a flexible neck assembly coupled to a proximal end of said end effector for articulating said end effector from said first position to said second position, said flexible neck assembly including:i) first and second flexible neck portions separated by a central longitudinal rib therebetween, each of said flexible neck portions having a plurality of neck ribs extending from said longitudinal rib and a plurality of kerfs separating each of said neck ribs from an adjacent neck rib, and each of said neck ribs having a side slot therethrough; andii) first and second transmission band assemblies received within each said side slot of said neck ribs of said first and second flexible neck portions for reciprocating movement therein, each of said transmission band assemblies having an interior articulation band and an exterior reinforcement band attached thereto; rein when said first and second transmission band assemblies are reciprocated in opposite directions within each said side slot of said neck ribs of said first and second flexible neck portions of said flexible neck assembly, said end effector is articulated from said first position to said second position.
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