| 摘要 |
The present invention relates to a retraction instrument ( 1, 100 ) comprising an elongated tubular body ( 3, 103 ) to which are associated a rod ( 2, 102, 122 ) and at least one deployable/orientable formation ( 5, 105, 155 ) in the distal position with regard to the principal body ( 3, 103 ) and to the rod ( 2, 102, 122 ) where the formation ( 5, 105, 155 ) can move from a retracted position of alignment with the principal body ( 3, 103 ) towards at least one deployed position in which the formation ( 5, 105, 155 ) extends inclined with regard to the principal body ( 3, 103 ).
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