Medical instrument and medical instrumentarium

Medical instrument for temporarily coupling to at least two shank-shaped or sleeve-shaped instruments, comprising:

• a first coupling device for temporarily coupling to a first shank-shaped or sleeve-shaped instrument,
• a second coupling device for coupling to a second shank-shaped or sleeve-shaped instrument,
• the first coupling device and the second coupling device being arranged or formed so as to be pivotable relative to each other,
• a main body on which the first coupling device is guided and held so as to be pivotable about a point of rotation that is spatially remote from the main body,
• a first guide device for guiding a movement of the first coupling device along a circular path, and
• a first fixing device for fixing the first coupling device in a first orientation on the main body,
• wherein:
• the first guide device is arranged or formed at least partially on the main body,
• the first guide device comprises two or more circular arc shaped guide slots,
• the first fixing device is configured in the form of a clamping device, and
• the clamping device comprises first and second clamping elements that are coupled to each other by connecting members penetrating the at least one guide slot and that comprise a first clamping member for moving the first and second clamping elements toward each other.

Medical instrument for temporarily coupling to at least two shank-shaped or sleeve-shaped instruments, comprising:

• a first coupling device for temporarily coupling to a first shank-shaped or sleeve-shaped instrument,
• a second coupling device for coupling to a second shank-shaped or sleeve-shaped instrument,
• the first coupling device and the second coupling device being arranged or formed so as to be pivotable relative to each other,
• a main body on which the first coupling device is guided and held so as to be pivotable about a point of rotation that is spatially remote from the main body,
• a first guide device for guiding a movement of the first coupling device along a circular path, and
• a locking device for locking the first coupling device on the main body in a normal position in which the coupling device longitudinal axes of the at least two coupling devices are aligned in parallel with each other,
• wherein:
• the first guide device is arranged or formed at least partially on the main body, and
• the first guide device comprises two or more circular arc shaped guide slots.

Medical instrumentarium for implanting a spinal column stabilization system, comprising:

• at least two shank-shaped or sleeve-shaped instruments, and
• a medical instrument for temporarily coupling the at least two shank-shaped or sleeve-shaped instruments, said medical instrument comprising:
• a first coupling device for temporarily coupling to a first shank-shaped or sleeve-shaped instrument, and
• a second coupling device for coupling to a second shank-shaped or sleeve-shaped instrument,
• the first coupling device and the second coupling device being arranged or formed so as to be pivotable relative to each other,
• a main body on which the first coupling device is guided and held so as to be pivotable about a point of rotation that in particular is spatially remote from the main body, and
• a first guide device for guiding a movement of the first coupling device along a circular path,
• wherein:
• the first guide device is arranged or formed at least partially on the main body, and
• the first guide device comprises two or more circular arc shaped guide slots arranged concentrically to each other.