Minimally invasive surgical access device

Details Minimally invasive surgical access device Minimally invasive surgical access device

2006-03-16

2008-08-05

Mai, Hao D (Department: 3732)

Surgery

Specula

Retractor

C600S104000, C600S185000, C600S201000, C600S233000

Reexamination Certificate

active

07407483

ABSTRACT:
A minimally invasive surgical access device that allows access to a pathology being treated while significantly reducing the risk of damaging anatomical structures proximate the pathology. The access device includes a base portion having a central bore extending therethrough, and retractor blades pivotably mounted to the base portion. An insertion handle is coupled to the base portion to thread the retractor blades into the patient. The insertion handle is removed from the base portion, and a core hollow screw is threaded into the base portion to separate the retractor blades to gain access to the pathology through the hollow screw.

REFERENCES:
patent: 400589 (1889-04-01), Molesworth
patent: 4690132 (1987-09-01), Bayer et al.
patent: 5489210 (1996-02-01), Hanosh
patent: 6007337 (1999-12-01), Bauer
patent: 6364832 (2002-04-01), Propp
patent: 6451057 (2002-09-01), Chen et al.

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