Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Robert E. Simonson0
Date of Patent
June 26, 2018
0Patent Application Number
153616010
Date Filed
November 28, 2016
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A dilator retractor and the dilators that are used for minimally invasive spinal surgery or other surgery are configured to accommodate the anatomical structure of the patient as by configuring the cross sectional area in an elliptical shape, or by forming a funnel configuration with the wider end at the proximate end. In some embodiments the distal end is contoured to also accommodate the anatomical structure of the patient so that a cylindrically shaped, funnel shaped, ovoid shaped dilator retractor can be sloped or tunneled to accommodate the bone structure of the patient or provide access for implants. The dilator retractor is made with different lengths to accommodate the depth of the cavity formed by the dilators.
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