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AssigneeAesculap AG
InventorsJENS BEGER, Mario Serpa, Frank-Markus Storz, Francis Kilian
Estimating the term…
A surgical retractor system includes a substantially tubular retractor having several segments which can be irreversibly severed from one another to carry out a length adaptation of the retractor. A segment is subdivided into an expanding section and a plate section of differing radial flexibility and connected to each other in a one-piece material bond to allow plastic radial expansion of the retractor. An extractor can be operated to bring about plastic radial constriction of the retractor contrary to the radial expansion of the retractor. The extractor is prepared to cooperate with the plate section to bring about radial constriction of the retractor. A surgical instrument for removing a distractor or retractor from an opening includes at least one handle section defining a handle's longitudinal axis and at least one operating section defining a longitudinal effective axis, which are coupled to each other by a connecting section.
A surgical retractor system comprising a substantially tubular retractor having in axial direction a number of segments which can be irreversibly severed from one another in order to carry out a length adaptation of the retractor, at least one segment in being subdivided in the circumferential direction into at least one expanding section and one plate section which are of differing radial flexibility and connected to each other in a one-piece material bond so that a plastic radial expansion of the retractor is made possible, and comprising a first extractor which is configured such that it brings about upon its actuation a plastic radial constriction of the retractor contrary to the radial expansion of the retractor, wherein the first extractor is prepared and arranged in such a manner to cooperate with the at least one plate section for the introduction of a torsional moment in order to effect the radial constriction of the retractor.
A surgical instrument for removing a distractor or retractor from an opening, which is kept open by the distractor or retractor, the surgical instrument comprising at least one handle section defining a handle's longitudinal axis and at least one operating section defining a longitudinal effective axis, which are coupled to each other via a connecting section, wherein the connecting section arranges the handle section and the operating section relative to each other such that the handle's longitudinal axis and the longitudinal effective axis extend at an angle relative to each other, at an angle of between 60° and 140°, wherein the operating section has a longitudinal slit which is open at its distal end, extends along the longitudinal effective axis and divides the operating section in two legs which are equal in size and separate in a circumferential direction.
Dependencies are inferred from the claim text.