Modified dual-blade cutting system
AssigneeThe Regents of the University of Colorado, a body corporate
InventorMalik Y Kahook
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Abstract
The present invention relates to a microsurgical device and methods of its use for treatment of various conditions including eye diseases, such as glaucoma, using minimally invasive surgical techniques. The invention relates to a dual-blade device for cutting the trabecular meshwork (TM) in the eye. The device tip provides entry into the Schlemm's canal via its size (i.e., for example, 0.3-0.2 mm width) and configuration where the blade tip curves up providing a ramp-like action for cutting the TM. The dimensions and configuration of the blade is such that an entire strip of TM is removed without leaving TM leaflets behind and without causing collateral damage to adjacent tissues.
Claims22
An ophthalmic device comprising:
- a handle;
- a tool shaft connected to the handle;
- a platform connected to the tool shaft, wherein the platform comprises:
- an insertion tip on a distal end of the platform;
- a posterior end;
- a bottom surface;
- a top surface that is planar;
- a first lateral side;
- a second lateral side, wherein the bottom surface, the top surface, the first lateral side, and the second lateral side extend from the insertion tip towards the posterior end, the first lateral side and the second lateral side being perpendicular to the bottom surface;
- a first lateral blade extending from the first lateral side;
- and
- a second lateral blade extending from the second lateral side, the first lateral blade and the second lateral blade (i) separated by a gap defining an unoccupied space and (ii) connecting the top surface to the tool shaft, such that the top surface is configured to guide trabecular meshwork to the first lateral blade and the second lateral blade.
Dependencies are inferred from the claim text.