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The PASCAL Photocoagulator is an integrated semi-automatic pattern scan laser photocoagulation system designed to treat ocular diseases using a single shot or predetermined pattern array. The device is for ophthalmologists, particularly those that focus in vitreo-retinal surgery, a type of eye surgery.
Additional recommended knowledge
The Pascal method of photocoagulation was initially developed at Stanford University. OptiMedica founders worked together at Coherent, and based on their experience in the ophthalmic laser industry, recognized the need for improved safety, precision, comfort and speed of photocoagulation procedures for eye diseases.
Ophthalmic Laser Delivery Systems
Most ophthalmic laser delivery systems include:
The Pascal system is fully integrated with a touch screen GUI, advanced slit lamp optics, slit lamp mounted micromanipulator, and ergonomic features for the physician and patient.
Pascal Method - Pattern Scanning
In scanning applications, a control system applies an electrical current proportional to the desired location of a beam of light to a high speed, sensitive, limited rotation motor called a galvanometer (commonly referred to as a galvo). A scanner is a galvo with a mirror attached to it. When the current is changed, the scanner quickly steers the laser beam to the desired location. Closed loop circuits ensure that the desired position is precisely reached.
In Pascal, control selections such as pattern and spot size from the graphical user interface are translated into (F,X,Y) coordinates. Three scanners deliver laser light to the retina in multi-spot patterns by controlling the x-position (X), y-position(Y) and fiber selection(F) for the placement and size of the laser beam.
The use of a FPGA from National Instruments enables fast scanning speed and a short response time of 4 microseconds for critical measurements and controlled feedback.
Indications for Use
Pascal photocoagulator also has [CE Mark] for international sale.
OptiMedica company website 2007 MDEA Winners
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Pascal_Photocoagulator". A list of authors is available in Wikipedia.|