초록 ▼

A surgical instrument is disclosed which is suitably adapted for use in operations to be performed under an endoscopic surgery. This surgical instrument comprises an elongate main body of the instrument, a leading end part disposed on the leading end side of the main body of the instrument and endow

A surgical instrument is disclosed which is suitably adapted for use in operations to be performed under an endoscopic surgery. This surgical instrument comprises an elongate main body of the instrument, a leading end part disposed on the leading end side of the main body of the instrument and endowed with surgically operating member for producing an open-close motion or a rotary motion, a manipulating part for effecting remote control of the surgically operating member, and an elongate transmitting member for transmitting the operation in the manipulating part to the leading end part mentioned above. It is provided in or near the leading end part with a locking mechanism for regulating the motion of the transmitting member relative to the leading end part and fixing the posture of the surgically operating member. This surgical instrument allows the surgically operating member to fix the posture thereof infallibly, permits simplification of the construction of the manipulating part, and enjoys outstanding operational efficiency.

대표청구항 ▼

A surgical instrument comprising an elongate main body having a leading end side and a basal end side, said main body including a curving part for enabling at least a portion of the main body to be curved, a leading end part disposed on the leading end side of said main body and provided with surgic

A surgical instrument comprising an elongate main body having a leading end side and a basal end side, said main body including a curving part for enabling at least a portion of the main body to be curved, a leading end part disposed on the leading end side of said main body and provided with surgically operating means for producing operative motion, a manipulating part disposed on the basal end side of said main body and adapted to effect remote control of said surgically operating means, and an elongate transmitting member adapted to transmit operation of said manipulating part to said leading end part, said transmitting member being in the shape of a linear body at least a part of which is flexible, and a locking mechanism located on a leading end side of said curving part for regulating motion imparted by said transmitting member on said leading end part and fixing a posture of said surgically operating means.