Telecentric Scale Projection System for Real-Time In-Situ Surgical Metrology
First Claim
1. A metrology system for measuring a desired portion of a surgical site, comprising:
- a projector assembly comprising a light source for projecting light through a telecentric lens and into the surgical site; and
a mask operably coupled to the projector assembly, wherein light projected from the light source projects through the mask.
1 Assignment
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Accused Products
Abstract
A system and method for determining endoscopic dimensional measurements including a projector assembly comprising a light source for projecting light through a telecentric lens and into a surgical site, and a mask coupled to the projector assembly. Light projected from the light source projects through the mask. The projected light through the mask may be a collimated pattern which does not significantly change in size as a function of the distance to a projected plane. The projected light patterns may include multiple wavelengths of light for measurements of different features of tissue and may be produced using a laser in conjunction with a light shaping optical diffuser, or using a light emitting diode in conjunction with a light shaping optical diffuser, or using a spatial filter. The projected light patterns may take the form of concentric rings with each ring representing a radius of a given dimension.
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Citations
20 Claims
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1. A metrology system for measuring a desired portion of a surgical site, comprising:
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a projector assembly comprising a light source for projecting light through a telecentric lens and into the surgical site; and a mask operably coupled to the projector assembly, wherein light projected from the light source projects through the mask. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification