US 11,835,203 B2
Surgical lighting device for fluorescent imaging
Minh-Hong Vu Thi, Orléans (FR); Sophie Santiago, Orléans (FR); and Cécilia Valteau, Orléans (FR)
Assigned to Maquet SAS, Orléans (FR)
Filed by MAQUET SAS, Orléans (FR)
Filed on Sep. 2, 2022, as Appl. No. 17/929,516.
Application 17/929,516 is a continuation of application No. PCT/EP2021/072927, filed on Aug. 18, 2021.
Prior Publication US 2022/0412538 A1, Dec. 29, 2022
Int. Cl. F21V 14/08 (2006.01); F21V 9/04 (2018.01); F21Y 115/10 (2016.01); F21W 131/205 (2006.01)
CPC F21V 14/08 (2013.01) [F21V 9/04 (2013.01); F21W 2131/205 (2013.01); F21Y 2115/10 (2016.08)] 19 Claims
OG exemplary drawing
 
1. A surgical lighting device (1) for generating a light spot at a surgical site for use in combination with a fluorescence imaging device, said lighting device (1) comprising:
a support structure (2),
a subsurface (7) coupled to the support structure (2) to seal the subsurface of the device while allowing light to pass through,
a plurality of light sources (10) for emitting white light, and arranged between said support structure (2) and the subsurface (7),
a plurality of NIR filters (18), each of the plurality of NIR filters being associated with a light source (10) and being configured to substantially prevent transmitting wavelengths within a wavelength band, the wavelength band falling between 680 nm to 900 nm,
wherein each of the plurality of NIR filters (18) is movable between (i) an active position, in which the respective NIR filters are each located in front of a light source (10) to filter the light emitted by said light source (10), and (ii) an inactive position in which the plurality of NIR filters do not filter the light coming from the light sources (10),
the device further comprising a control unit (24) configured to control movement of the plurality of NIR filters (18) between said active and inactive positions and a means (26; 28) to receive signals from a fluorescence imaging device,
wherein the control unit (24) is configured to control movement of the plurality of NIR filters (18) between the inactive position and the active position in accordance with a signal indicating that the fluorescence imaging device has been activated.