US 2013/0158359 A1 · Three-Blade Spinal Retractor

Abstract

A three-blade spinal retractor utilizes adjustable and lockable translating arms with angulating blades to provide triangulated medial/lateral and cephalad/caudal tissue retraction for spinal surgeries via the adjustably lockable translating arms. A medial/lateral translating arm with an angularly adjustable retraction blade co-acts and cooperates with angularly adjacent first and second cephalad/caudal translating arms with angularly adjustable retraction blades for tissue retraction and surgical site access. A plate having a medial/lateral adjustment system adjustably holds the medial/lateral translating arm, a first cephalad/caudal adjustment system adjustably holding the first cephalad/caudal translating arm and a second cephalad/caudal adjustment system adjustably holding the second cephalad/caudal translating arm. The translating arms each have a blade holder that provides angular adjustment of the blade. Angular adjustment of each blade along with medial/lateral and cephalad/caudal adjustment provides improved preciseness and stability in positioning, tissue distraction, and surgical site access.

Claims12

Dependent claims

A spinal retractor comprising:

a plate having a medial side, a lateral side, and a central side;
a first arm extending from the medial side of the plate and configured to translate in a medial/lateral direction, the first arm have a first arm end distal the medial side of the plate;
a second arm extending from the lateral side of the plate and configured to translate in a medial/lateral direction, the second arm having a second arm end distal the lateral side of the plate;
a third arm extending from the central side of the plate and configured to translate in a cephalad/caudal direction, the third arm having a third arm end distal the central side of the plate;
a first blade holder situated at the first arm end, the first blade holder angularly adjustable and configured to receive a first retractor blade;
a second blade holder situated at the second arm end, the second blade holder angularly adjustable and configured to receive a second retractor blade;
and
a third blade holder situated at the third arm end, the third blade holder angularly adjustable and configured to receive a third retractor blade.

5 more elements

A spinal retractor comprising:

a plate having a projecting medial side defining a medial end, a projecting lateral side defining a lateral end, and defining a central side between the projecting medial and lateral sides;
a medial adjustment mechanism situated at the medial end;
a lateral adjustment mechanism situated at the lateral end;
a central adjustment mechanism situated at the central side;
a first arm received in the medial adjustment mechanism and configured to translate within the medial adjustment mechanism in a generally medial/lateral direction;
a second arm received in the lateral adjustment mechanism and configured to translate within the lateral adjustment mechanism in a generally medial/lateral direction;
a third arm extending from the central adjustment mechanism and configured to translate within the central adjustment mechanism in a cephalad/caudal direction;
a first blade holder situated at an end of the first arm, the first blade holder angularly adjustable and configured to receive a first retractor blade;
a second blade holder situated at an end of the second arm, the second blade holder angularly adjustable and configured to receive a second retractor blade;
and
a third blade holder situated at an end of the third arm, the third blade holder angularly adjustable and configured to receive a third retractor blade.

8 more elements

Dependencies are inferred from the claim text.

Three-Blade Spinal Retractor

Life of this patent

Three-Blade Spinal Retractor

Life of this patent

Abstract

Claims12