Cervical retractor

摘要

An anterior cervical retractor comprises a first medial-lateral retractor body having a base arm and a moving arm and a pair of retractor blades. The retractor blades may be side loading or top loading. The cervical retractor comprises a second cranial-caudal retractor body having a pair of moving arms and a pair of retractor blades. The retractor blades may have an adjustable angulation. The retractor blades may also be fixed to the spine and provide distraction upon operation of the second retractor body. The blades of the first retractor body and/or the second retractor body may be coupled to light elements that illuminate the operative corridor between the blades.

主权项

1. An anterior cervical refractor for application to an anterior part of cervical spine, comprising:
a medial-lateral retractor, said medial-lateral refractor comprising:
a base arm and a first retractor blade, the base arm having a first track and a first blade connector, said first track extending perpendicularly from a proximal end of said base arm, said first track including teeth, wherein said first retractor blade couples to the first blade connector such that the first retractor blade can rotate about a limited range relative to the base arm; anda first moving arm and a second retractor blade, said first moving arm including a first track receptacle and a second blade connector, said first track receptacle configured to receive said first track extending from said base arm, said first moving arm being translatable along said first track to increase the distance between the moving arm and base arm and retract tissue in medial and lateral directions with the first and second blades, wherein said second retractor blade couples to the second blade connector such that the second retractor blade can rotate about a limited range relative to the moving arm; and a cranial-caudal retractor, said cranial-caudal refractor comprising:
a second track having a plurality of teeth;a second moving arm and a third retractor blade, said second moving arm including a second track receptacle and a third blade connector, said second track receptacle configured to receive said second track, wherein said third retractor blade couples to the third blade connector such that the angle of the third retractor blade relative to the third blade connector can be adjusted; anda third moving arm and a fourth retractor blade, said third moving arm including a third track receptacle and a fourth blade connector, said third track receptacle configured to receive said second track, wherein said fourth retractor blade couples to the fourth blade connector such that the angle of the fourth retractor blade relative to the fourth blade connector can be adjusted, wherein each of the third moving arm and fourth moving arm are independently translatable along the second track to increase the distance between the second and third moving arms and retract tissue in cranial and caudal directions with the third and fourth retractor blades; wherein the first and second blade connectors are side loading connectors, the first blade connector being an inside-out side loading connector, the second blade connector being a straight-on side loading connector, and wherein a connection post on each of the first and second retractor blades is configured to couple with both the inside-out side loading connector and the straight-on side loading connector, the connection post including a lower post rigidly coupled to a blade potion and an upper post coupled to the lower post with limited rotational capability relative to the lower post.