Patent ID: 8088134
Filing Date: 2012-01-03
Classification: A61F

Abstract:
1. A surgical instrument with no moving parts for marking spots at locations on the scleral limbal surface of the eye without penetrating the scleral surface tissue for selecting injection or incision sites, comprising: a) an elongated solid tubular structure defining a distal end adapted to being held by a surgeon and a proximal end, the tubular structure having a bend section closer to the proximal end than the distal end of the structure in an ergonomic configuration, and the proximal end incorporating two pointers for marking purposes arranged in an angular vee formation having tips in the form of two equally shaped, diverging, tapered blunt nosed pointers, the pointers connected at an extreme proximal end of the tubular structure, the tips set at a fixed distance apart in the range of 1.00 mm to 5.00 mm, and, b) whereby the pointers have a diameter in the range of 1.00 mm to 1.5 mm and whereby the length of the pointers is 8 mm, and, c) whereby the pointers are arranged in the vee formation at an angle in the range of 5 to 15 degrees, and, d) whereby the elongated structure has no moving parts, and e) whereby the instrument is presented by the surgeon to the scleral surface from the said distal end the surgeon is able to accurately scribe an incision spot without penetrating the scleral surface tissue at an exact position based on the fixed distance between the proximal end blunt nosed pointers from the edge of the iris to ensure that the incision is within the Pars Plana without penetrating the scleral surface tissue.