System for securing a patient suitable for eye surgery
Disclosed is a system ( 100 ) for securing a patient, intended to interact with a robotic platform equipped with a surgical instrument ( 30 ) suitable for eye surgery, the system comprising: —at least one ocular sensor ( 110 ) capable of detecting movement of an eye ( 10 ) of the patient and/or at least one cephalic sensor ( 120 ) capable of detecting a movement of the head ( 20 ) of the patient; and —a data processing means ( 130 ) for receiving data from the ocular sensor ( 110 ) and/or the cephalic sensor ( 120 ), processing the data in order to determine a level of risk for the patient on the basis of a predetermined criterion, then automatically sending a command for securing the patient to the robotic platform, the command being dependent on the previously determined risk level.
1 . A securing system for securing a patient, intended to cooperate with a robotic platform equipped with a surgical instrument suitable for an eye surgery, said system comprising:
at least one ocular sensor capable of detecting a movement of an eye of the patient and/or at least one cephalic sensor capable of detecting a movement of a head of the patient; and
a data processing means configured to receive data from said ocular sensor and/or said cephalic sensor, to process said data to determine a level of risk for the patient based on a predetermined criterion, and then emit, automatically, a securing command for securing the patient to said robotic platform, said securing command being dependent on the previously determined level of risk,
wherein the level of risk is determined by defining a geometric model of the patient's head and/or eye to calculate a time-to-impact criterion between the surgical instrument and the eye, and comparing said time-to-impact criterion with a predetermined reaction time.
2 . The system according to claim 1 , further comprising a surgical microscope configured to acquire at least one type of digital image of the retina of the eye and of a free end of the surgical instrument.
3 . The system according to claim 2 , wherein the type of digital image is a stereo-microscopic image and/or a sectional and depth image.
4 . A device comprising a securing system for securing a patient, and a robotic platform equipped with a surgical instrument adapted for eye surgery, wherein said system comprises:
at least one ocular sensor capable of detecting a movement of an eye of the patient and/or at least one cephalic sensor capable of detecting a movement of a head of the patient; and
a data processing means configured to receive data from said ocular sensor and/or said cephalic sensor, to process said data to determine a level of risk for the patient based on a predetermined criterion, and then emit, automatically, a securing command for securing the patient to said robotic platform, said securing command being dependent on the previously determined level of risk,
wherein the level of risk is determined by defining a geometric model of the patient's head and/or eye to calculate a time-to-impact criterion between the surgical instrument and the eye, and comparing said time-to-impact criterion with a predetermined reaction time.
5 . A method for securing a patient implemented with a device according to claim 4 when the surgical instrument is outside the patient, said method comprising the following steps:
a) obtaining data relating on the movements of the eye and/or of the head of the patient;
b) processing the data obtained in step a) so as to determine a level of risk for the patient on the basis of at least one predetermined criterion;
c) automatically emitting a securing command for securing the patient, said securing command being dependent on the previously determined risk level;
d) receiving said securing command at the level of the robotic platform, this automatically causes the robotic platform to take a securing action for securing the patient.
6 . The method according to claim 5 , wherein the data collected in step a) are selected from at least one of position, effort, vibration and/or electro-physiological activity measurements of the eye and/or of the head of the patient.
7 . The method according to claim 5 , wherein in step b), a geometric model is defined for the head and/or the eye of the patient so as to measure a distance and a relative velocity between a free end of the surgical instrument and the eye, said geometric model defining a time-to-impact criterion between said free end of the surgical instrument and said eye.
8 . The method according to claim 7 , wherein, in step b), the risk level is determined by comparing the time-to-impact criterion with a reaction time, said reaction time being a sum of a reaction time of a practitioner and a reaction time of the robotic platform driven by said practitioner.
9 . The method according to claim 5 , wherein the securing action is an audible, visual and/or haptic warning.
10 . The method according to claim 5 , wherein the securing action is an audible, visual and/or haptic warning coupled with a movement of the surgical instrument away from the patient.