Optically-implemented microsurgery system and approach
First Claim
Patent Images
1. A method comprising:
- illuminating a diffraction phase micrograting coupled to a vibration-actuated microsurgical tool and configured to change position, relative to a fixed scale micrograting and in response to movement of the vibration-actuated microsurgical tool;
sensing an intensity of light diffracted by the diffraction phase micrograting and the fixed scale micrograting; and
determining a force applied to the microsurgical tool based on the sensed intensity of light diffracted by the diffraction phase micrograting.
2 Assignments
0 Petitions
Accused Products
Abstract
According to an example embodiment of the present invention, a vibration-actuated microsurgical system includes an optical force detection arrangement having an optical encoding device configured to modulate an intensity of light in response to a displacement of a portion of the microsurgical system. Light sensing circuitry is configured to detect a force applied to the microsurgical system (e.g., and thereby to a sample) based on the intensity of light sensed from the optical encoding device. This detected force is used in controlling the application of the microsurgical system.
24 Citations
10 Claims
-
1. A method comprising:
-
illuminating a diffraction phase micrograting coupled to a vibration-actuated microsurgical tool and configured to change position, relative to a fixed scale micrograting and in response to movement of the vibration-actuated microsurgical tool; sensing an intensity of light diffracted by the diffraction phase micrograting and the fixed scale micrograting; and determining a force applied to the microsurgical tool based on the sensed intensity of light diffracted by the diffraction phase micrograting. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A method for surgically treating a sample, the method comprising:
-
vibrationally-actuating and applying a probe tip to a sample; illuminating a diffraction phase micrograting coupled to a vibration-actuated microsurgical tool and configured to change position, relative to a fixed scale micrograting and in response to movement of the vibration-actuated microsurgical tool; sensing an intensity of light diffracted by the diffraction phase micrograting and the fixed scale micrograting; determining a force applied to the microsurgical tool based on the sensed intensity of light diffracted by the diffraction phase micrograting; and controlling the application of the probe tip to the sample as a function of the determined force. - View Dependent Claims (7, 8, 9, 10)
-
Specification