Device for supporting and positioning a surgical retractor blade on a ring retractor
AssigneeUniversita' Degli Studi Dell'Aquila
InventorMarco CLEMENTI
Life of this patent
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Abstract
A device to connect a surgical retractor blade to a superficial ring retractor.
Claims8
A device for supporting and positioning a surgical retractor blade on a surgical ring retractor, said retractor blade comprising a stem, said device comprising a clamp (1) adapted to connect reversibly with the outer ring of a surgical ring retractor and comprising means for reversibly supporting the stem of a surgical retractor blade protruding inwardly from the ring of the retractor characterized in that said clamp (1) comprises a mutually cooperating upper half-body (11) and lower half-body (12) respectively adapted to surround superiorly and inferiorly the surgical retractor ring, and in that said clamp (1) is traversed longitudinally by a cavity (2) adapted to accommodate the stem of said surgical retractor blade, said cavity (2) being defined in the upper half-body (11) of said clamp (1), the latter includes constraining means (3) adapted to reversibly block the movement of the stem of said retractor blade.
Device according to the preceding claim characterized in that said constraining means (3) are movable between a resting position, in which said retractor blade is free to translate with respect to said clamp (1) and to rotate with respect to its longitudinal axis, and an engaged position, in which said constraining means (3) prevent the movement of said retractor blade with respect to said clamp (1).
Device according to one of the preceding claims characterized in that said constraining means (3) comprise a self-locking pin with a horizontal axis housed in a corresponding cavity defined in the clamp (1), said pin being capable of contrasting the lateral surface of the stem of said surgical retractor blade.
Device according to one of the preceding claims characterized in that said clamp (1) includes reciprocal clamping means (13) of said upper half-body (11) and lower half-body (12) the latter forming a prismatic pair, so that by acting on said reciprocal clamping means (13), one of said half-body (11, 12) can be moved with translatory motion with respect to the other.
Device according to one of the preceding claims characterized in that the lower portion of the upper half-body (11) and the upper portion of the lower half-body (12) are each conformed as a portion of the lateral surface of a cylinder.
Device according to one of the preceding claims characterized in that it is made of material suitable for being sterilized.
Dependencies are inferred from the claim text.