SYSTEM FOR MONITORING A SURGICAL LUMINAIRE ASSEMBLY

Abstract

The present invention comprises a system for monitoring a surgical luminaire assembly comprising at least one surgical luminaire, with a monitoring unit. The monitoring unit determines an energy input of the at least one surgical luminaire into the surgical field.

Claims

1. A system for monitoring a surgical luminaire assembly, comprising at least one surgical luminaire, with a monitoring unit wherein the monitoring unit determines an energy input of the at least one surgical luminaire into the surgical field.

2. The system according to claim 1, wherein the monitoring unit determines the energy input as a function of a light field diameter and an illuminance of the at least one surgical luminaire wherein the monitoring unit determines the light field diameter and/or the illuminance on the basis of the actuation of the light sources.

3. The system according to claim 2, wherein the light field diameter of the at least one surgical luminaire is variable by at least 25 mm, and/or wherein the light field diameter of the at least one surgical luminaire is adjustable at least in a light field diameter range between 200 mm and 300 mm, and/or wherein the illuminance of the at least one surgical luminaire is variable by at least 20 kLux, and/or wherein the illuminance of the at least one surgical luminaire is adjustable at least in an illuminance range between 80 kLux and 120 kLux.

4. The system according to claim 2, wherein the monitoring unit displays the energy input into the surgical field and/or a value determined on the basis of the energy input into the surgical field, and/or monitors for exceedance of a limit value.

5. The system according to claim 1, wherein the monitoring unit emits an acoustic and/or optical warning and/or automatically limits or reduces the illuminance when a limit value is exceeded.

6. The system according to claim 4, wherein a monitoring and/or control function of the monitoring unit can be switched on and off, and/or wherein the type of display and/or response to the limit value being exceeded is selectable.

7. The system, according to claim 1, wherein the surgical luminaire assembly comprises at least two surgical luminaires, wherein the monitoring unit determines a total power parameter of an exposure of the at least two surgical luminaires into the surgical field.

8. The system according to claim 7, wherein the total power parameter is the total energy input of the at least two surgical luminaires into the surgical field, wherein the monitoring unit determines the energy input as a function of a light field diameter and an illuminance of each of the at least two surgical luminaires, wherein the surgical luminaires each comprise a plurality of light sources, wherein the monitoring unit determines the light field diameter and/or the illuminance in each case on the basis of the actuation of the light sources.

9. The system according to claim 8, wherein the monitoring unit determines the total power parameter at least in one operating mode under the assumption that the light fields overlap completely, and/or wherein the monitoring unit determines the total power parameter at least in one operating mode on the basis of information regarding the actual orientation and/or position of the at least two surgical luminaires and/or regarding the actual overlap of the light fields of the at least two surgical luminaires, wherein the system comprises an input unit via which an operator can enter the information and/or a detection unit by which the information is automatically determined.

10. The system according to claim 1, wherein the monitoring unit determines the energy input and/or the total power parameter at least in one operating mode under the assumption of a predetermined distance of the at least one surgical luminaire from the surgical field.

11. The system according to claim 1, wherein the at least one surgical luminaire comprises a luminaire body and a handle which is arranged on the luminaire body, via which the luminaire body can be oriented.

12. System according to claim 1, wherein the surgical luminaire assembly comprises at least two surgical luminaires, each comprising a stand-alone monitoring unit and an interface for communicating with each other, wherein the total power parameter is determined by the monitoring units on the basis of the information transmitted via the interface, or wherein a common monitoring unit is provided.

13. The system according to claim 1, wherein the surgical luminaire assembly comprises at least two surgical luminaires, wherein at least one parameter of the at least two surgical luminaires is synchronously adjustable, in particular the light field diameter and/or the illuminance and/or the color setting and/or the switching on and off.

14. A surgical luminaire assembly, comprising at least one or more surgical luminaires and a system according to claim 1.

15. The surgical luminaire assembly according to claim 14, wherein the surgical luminaire assembly comprises a support system via which the one or more luminaires can be arranged above an operating table so as to be adjustable in their position and orientation.

16. The system according to claim 1 wherein the surgical luminaire has an illuminance of at least 40 kLux and/or a light field diameter of at least 100 mm.

17. The system according to claim 2 wherein the surgical luminaire comprises a plurality of light sources.

18. The system according to claim 4 wherein the value is determined on the basis of a temperature rise of the surgical field.

19. The system according to claim 10 wherein a distance is in the range between 600 mm and 1500 mm is assumed, and/or wherein the monitoring unit determines the total power parameter at least in one operating mode on the basis of information regarding an actual distance of the at least one surgical luminaire from the surgical field, wherein the system comprises an input unit via which an operator can enter the information and/or a detection unit by which the information is automatically determined.

20. The system according to claim 11 wherein the handle is arranged within a light-emitting region of the luminaire body and/or a main axis of the handle coincides with an optical main axis of the surgical luminaire, and/or wherein the surgical luminaire comprises a plurality of LEDs, the light fields of which at least partially overlap, wherein the size of the light field is adjustable by actuation of the LEDs.

Description

[0073] In the drawing:

[0074] FIG. 1 shows an exemplary embodiment of a surgical luminaire assembly according to the invention with a monitoring unit according to the invention.

[0075] FIG. 1 shows an exemplary embodiment of a surgical luminaire assembly 1 according to the invention with a first surgical luminaire 2 and a second surgical luminaire 2′. However, within the scope of the present invention, the surgical luminaire assembly 1 could also comprise only one surgical luminaire or more than two surgical luminaires.

[0076] In the exemplary embodiment, the surgical luminaires 2 and 2′ are adjustable in their position and orientation via a support system 3 above an operating table 8. The adjustment is usually done by hand. However, adjustment by means of drives of the support system 3 is also conceivable. In the exemplary embodiment, the support system comprises a ceiling mount 15, via which a central shaft 4 is mounted on the ceiling. Support arms 5 are pivotably arranged on the central shaft 4. The surgical luminaires 2 and 2′ are each arranged on different support arms 5 via further support arm elements 6 and joints, and have a handle 7 on which they can be moved. However, other designs of the support system are also conceivable.

[0077] The surgical luminaires 2 and 2′ each comprise a luminaire body which can be oriented via the handle 7 arranged on the luminaire body. In the exemplary embodiment, the handle 7 is arranged within a light-emitting region of the luminaire body.

[0078] The light-emitting region in each case comprises a plurality of light sources, in particular LEDs. In the exemplary embodiment, the light-emitting region and/or the light sources are each arranged around the handle 7. In particular, the handle 7 is arranged centrally within the light-emitting region.

[0079] In the exemplary embodiment, the main axis of the handle coincides in each case with an optical main axis of the surgical luminaire and therefore points to the region illuminated by the surgical luminaire.

[0080] In the exemplary embodiment, the surgical luminaires 2 and 2′ each comprise a plurality of LEDs, the light fields of which at least partially overlap, wherein preferably the size of the light field can be adjusted in each case by control of the LEDs.

[0081] The surgical luminaires 2 and 2′ each generate a light field 12 and 12′ respectively. By arranging and orienting the surgical luminaires 2 and 2′ accordingly, the light fields 12 and 12′ can be directed onto a surgical field 10 of the patient 9 lying on the operating table 8 so that they overlap.

[0082] In other cases, however, the two light fields 12 and 12′ of the surgical luminaires 2 and 2′ can also be directed towards different regions. For example, in the context of a transplantation, one surgical luminaire can be directed towards the surgical field 10 of the patient 9 lying on the operating table 8, and another surgical luminaire can be directed towards the transplant.

[0083] In particular, the surgical luminaires may have one or more of the following operating parameters: [0084] illuminance min. 40 kLux - max. 160 kLux [0085] color temperature adjustable between 3000 - 6000 K [0086] light field size adjustable between 140 - 350 mm diameter [0087] color rendering index > Ra96 (the standard requires > Ra85) [0088] total irradiance at maximum luminosity approx. 540 W/m.sup.2 [0089] working distance between luminaire and surgical field between 600 mm -1500 mm

[0090] FIG. 1 shows a control apparatus 30 via which functions of the surgical luminaires 2 and 2′ can be controlled, in particular brightness adjustment and/or light field size and/or color temperature and/or switching on and off. In the example shown, this control apparatus is mounted on a wall. Alternatively, the control apparatus 30 could also be embodied as a table or mobile version. The control apparatus preferably has input elements 33, for example in the form of switches, actuators and/or a touchscreen. Furthermore, the control apparatus 30 preferably comprises a display 31 on which operating states and/or current setting parameters of the individual surgical luminaires 2 and 2′ can be displayed.

[0091] The surgical luminaires 2 and 2′ can be networked with each other and/or with a common controller and/or operating unit by cable and/or wirelessly. Via this communication, it is preferably possible to synchronize functions of the surgical luminaires 2 and 2′, such as brightness adjustment, focus adjustment or color temperature, as well as simultaneous switching on and off.

[0092] According to the invention, the surgical luminaire assembly comprises a monitoring unit 20, which is only shown symbolically here. This can be part of a controller of the surgical luminaires, integrated therein and/or external thereto, and/or of the control apparatus 30.

[0093] In a first aspect of the present invention, the monitoring unit determines an energy input of at least one surgical luminaire 2 and 2′ into the surgical field 10. The energy input depends on the light field diameter of the particular light field 12 and 12′ and its illuminance. The total energy of each surgical luminaire can be determined by the monitoring unit 20 via these 2 parameters.

[0094] This is explained in more detail on the basis of the following example:

[0095] A small surgical luminaire with a small light field with a diameter of 160 mm and an illuminance of 160 kLux and a large surgical luminaire with a large light field with a diameter of 350 mm and an illuminance of 160 kLux both have exactly the same irradiance of approx. 550 W/m.sup.2. However, the total energy input into the surgical field is approx. 3 times higher with the large surgical luminaire than with the small surgical luminaire.

[0096] The surgical luminaires preferably each comprise a plurality of light sources, in particular LEDs, wherein the monitoring unit determines the light field diameter and/or the illuminance on the basis of the control of the light sources. A measurement of the light field diameter and/or the illuminance can therefore be omitted. In particular, the light field diameter and/or the illuminance is determined exclusively on the basis of the control of the light sources.

[0097] In one possible embodiment and/or in one possible mode of operation of the present invention, the determination of the energy input is carried out entirely on the basis of actuation data alone, without taking measured values into account.

[0098] Since the networking of the surgical luminaires means that the monitoring unit 20 knows at all times which parameters are set at each surgical luminaire 2 and 2′, it can either emit a warning signal acoustically or display it visually in the event of critical settings of one or more surgical luminaires. For example, a corresponding display 32 can be provided on the control apparatus 30, for example in the form of a flashing light.

[0099] Similarly, the monitoring unit 20 can be configured to automatically reduce or limit the illumination level. Especially if the illuminance of all surgical luminaires is synchronized, the risk of excessive energy/temperature/tissue drying can be significantly reduced.

[0100] In one possible embodiment of the invention, this functionality can be switched on or off.

[0101] In one possible embodiment of the invention, it can be selected whether a warning sound or display is implemented or both.

[0102] In one possible embodiment of the invention, a maximum value for the energy input can be preset by an operator, for example by corresponding input elements of the control apparatus 30.

[0103] In one possible embodiment of the invention, the surgical luminaires have an illuminance of at least 40 kLux and/or a light field diameter of at least 140 mm.

[0104] In one possible embodiment of the invention, the temperature rise in the region of the surgical field 10 caused by the surgical luminaires 2 and 2′ can be indicated to the operator 11, or he can preset a limit value for the temperature value.

[0105] If several surgical luminaires 2 and 2′ are provided, as in the exemplary embodiment, their light fields 12 and 12′ can be superimposed or directed simultaneously onto the surgical field 10. This results in very high irradiances and high temperature loads, which can lead to undesirable side effects. The associated maximum illuminance can also be so extremely high that it causes glare for the user and quickly tires the eyes.

[0106] According to the second aspect of the present invention, the monitoring unit therefore determines a total power parameter of the exposure of the at least two surgical luminaires 2 and 2′ into the surgical field 10.

[0107] The total power parameter can now be monitored and/or displayed in the same way as described above for the energy input.

[0108] The total power parameter may be the jointly achieved illuminance and/or irradiance. Preferably, however, the total energy input of the at least two surgical luminaires 2 and 2′ into the surgical field 10 is also determined here as described according to the first aspect. In particular, this is done via the light field diameter of the particular light field 12 and 12′ and its illuminance.

[0109] Using these parameters, a possible maximum system energy can be determined even without information regarding the orientation of the surgical luminaires. This procedure is based on the worst-case scenario that all light fields are directed at one point from a given distance to the surgical luminaire. Here, for example, a distance of one meter can be assumed.

[0110] Alternatively or additionally, however, the determination of the total power parameter can also be carried out on the basis of information regarding the actual arrangement of the surgical luminaires 2 and 2′. In particular, it can be provided that an operator of the monitoring unit can specify a certain overlap of light fields and/or can adjust a distance, on the basis of which the determination is then made. This makes individual adjustment and assessment possible.

[0111] Alternatively or additionally, the monitoring unit can comprise one or more sensors via which the information regarding the actual arrangement of the surgical luminaires 2 and 2′ is determined, in particular information regarding the overlapping of light fields and/or regarding the distance of the particular surgical luminaires 2 and 2′ from the surgical field 10.