Patent ID: 9113853
Filing Date: 2015-08-25
Classification: A61B,A61F

Abstract:
1. A tissue retractor, comprising: first and second elongated rack members configured to translate linearly in opposite directions, each rack member having a toothed side; an access driver body, the access driver body including a rack housing configured to receive the first and second rack members, a pinion positioned between the first and second rack members and simultaneously engaged with the toothed sides of each of the first and second rack members, a pawl operable to prohibit translation of the first and second rack members, and a thumb tab in communication with the pinion, the thumb tab operable to cause translation of the first and second rack members; a first segmented adjustable retractor arm fixedly attached to the first rack member in a perpendicular orientation, the first segmented retractor arm including a proximal segment fixedly attached to the first rack member, a middle segment pivotally coupled with the proximal segment, and a distal segment pivotally coupled to the middle segment, the distal segment including a blade receptacle and a release mechanism, and the middle segment including a first friction recess configured to house a first friction element and spring for frictionally engaging the proximal segment and a second friction recess configured to house a second friction element and spring for frictionally engaging the distal segment; a second segmented adjustable retractor arm fixedly attached to the second rack member in a perpendicular orientation, the second segmented retractor arm including a proximal segment fixedly attached to the second rack member, a middle segment pivotally coupled with the proximal segment, and a distal segment pivotally coupled to the middle segment, the distal segment including a blade receptacle and a release mechanism; a first retractor blade including a connector and a blade portion, the connector being configured to couple with the blade receptacle of the first retractor arm, the blade portion being generally curved; and a second retractor blade including a connector and a blade portion, the connector being configured to couple with the blade receptacle of the second retractor arm, the blade portion being generally curved.