Device and method for access to interior body regions
AssigneeAOK Innovations, LLC
InventorJon Kiev
Life of this patent
Estimating the term…
Abstract
A device and method is provided to gain access to interior body regions. The system includes a safety needle assembly, a stylet assembly, a blade assembly, an obturator assembly, and a dilator assembly. The safety needle assembly or stylet assembly accesses an interior body region, after which the blade assembly expands the pathway created by the safety needle assembly or stylet assembly. The obturator then further expands the pathway and delivers the dilator assembly to the desired location. The safety needle assembly, obturator assembly, and blade assembly are removed, leaving the dilator assembly in place for future procedures.
Claims8
A device to access interior body regions comprising:
- a piercing device operable to create a pathway through skin and into said interior body regions;
- a blade assembly operable to cut tissue to expand said pathway, said blade assembly further comprising at least one undercut disposed within an outer diameter of a blade assembly bottom, at least one blade connected to said at least one undercut, a first lumen extending through said blade assembly from said blade assembly bottom and through a blade assembly middle, said first lumen sized and configured to slidably receive said piercing device, a second lumen extending from said first lumen through a blade assembly top, and a first shelf disposed between said first lumen and said second lumen;
- a pushrod comprising a hollow, cylindrical pushrod top, said pushrod top connected to a hollow, cylindrical pushrod bottom, a tab stem extending from an outer diameter of said pushrod top, and a tab extending from said tab stem, wherein an outer diameter of said pushrod bottom is sized and configured to slidably and rotatably fit within said second lumen;
- an obturator assembly operable to further expand said pathway, said obturator assembly further comprising a cylindrical obturator bottom including a proximal lumen, a distal lumen, and a second shelf disposed between said proximal lumen and said distal lumen, a cylindrical obturator top including a stem sized and configured to fit within said proximal lumen, a slot extending through a wall of said obturator top, and an opening extending through the length of said obturator top, said opening sized and configured to fit around said blade assembly top;
- and a dilator assembly operable to maintain said pathway and provide access to said interior body regions, said dilator assembly further comprising a dilator slot and a dilator tab, said dilator slot sized and configured to receive said tab stem, wherein said dilator tab prevents rotation of said tab stem, and wherein said dilator assembly is releasably attached to said obturator assembly.
Dependencies are inferred from the claim text.