EP2947381B1 - Surgery and examination light with an integrated rechargeable battery - Google Patents

Description

Field of the invention

The invention relates to a surgical lamp according to the preamble of claim 1, in particular with a lamp body in which at least one lamp module for illuminating an operating area is installed and with an attached to the lamp body extension member having an attachment area for attachment to a wall, such as a ceiling of a room , a stationary or mobile component, or a mobile pedestal, such as a car. At least one accumulator is arranged in at least one light-body-side section of the operating light, as seen from the attachment region.

The state-of-the-art technology, such as the marLux H6 CX Mobile Battery Operational Light from the KLS Martin Group, is a well-known mobile operating light that features a sturdy U-leg chassis with lockable castors. A suspension of a lamp body by means of a spring arm and a vertical stand tube. The luminaire body itself is dustproof closed and made of shatterproof aluminum with a transparent plastic element. The aluminum surface has a highly resistant plastic coating. A battery box is mounted on the U-foot chassis with optimized focus. There is an accumulator in it. If a primary power system fails, or is absent, the operating light can only be operated via the accumulator unit installed in the battery box.

It is well known that surgical lights can fail due to a power failure. Also, short-term interruptions and disturbances, especially due to large voltage fluctuations are often the trigger. In addition, even failures of operating lights occur when a short circuit occurs or unintentionally the power line was disconnected. The Disconnecting the lead may be caused by a repair or a revision or by a defect.

It is also customary that operating lights are secured by an emergency power supply on site. This emergency power supply is part of a domestic installation, ie part of a secondary power supply system of a hospital. The emergency power supply often includes an emergency generator and a separate power line system. While 230 V power is fed via the primary power supply, so the usual power grid a switched-mode power supply, the emergency power is fed via a separate network, ie the secondary power grid, between the switching power supply and the operating light via one or more changeover relay. If the power fails, the emergency power supply takes over its task. The changeover then takes place by means of the or the changeover relay. The emergency power supply usually consists of a large battery buffer and / or a said generator. There are both 24 V DC and 230 V AC backup power supplies. Of course, there are also country-specific deviations regarding the voltage.

The state of the art is also from the US 2005/0171407 A1 , of the US 2004/0109331 A1 , of the GB 511 194 A , of the US 3 783 262 A , of the EP 1 536 179 A2 as well as the CN 101 881 407 A known.

It is the object of the present invention to avoid the disadvantages of the prior art and to enable a high energy density, with a small space for fail-safe operating lights.

Disclosure of the invention

This object is achieved by the characterizing part of claim 1. The accumulator is then embedded within the corresponding component and at least partially surrounded by it. This also ensures the packaging space-efficient housing of the at least one rechargeable battery, in particular if it is integrated in a rechargeable battery pack.

Due to the significantly reduced performance of modern surgical lights, especially when they use LEDs, and the development of so-called "battery packs", ie combinations of accumulators, in the direction of a more efficient and smaller type, it is possible by an inventive Design to ensure a high energy density, such that an emergency power supply takes place directly in the lighting system. The risk of line breaks caused by failures of the operating light is almost eliminated.

An accumulator including a charging system is installed directly in the light body side section of the operating light. If the current that is usually used to operate the surgical light fails, the surgical light still lights up completely independently of this.

The result is a greatly increased reliability. Even if the supply lines and peripheral equipment are damaged, the operating light stays on and the operation can be successfully completed. An additional external wiring of the emergency power supply is not necessary, which leads to a cost saving. The use of now small accumulator charging units in the operating light is much cheaper than a central large emergency power supply. Even operation in hospitals without emergency power supply is possible because the surgical light according to the invention is emergency current out of itself.

Advantageous embodiments are claimed in the subclaims and are explained in more detail below.

In order to improve the operability of the surgical light, it is advantageous if the handle is designed as a preferably 360 ° around the lamp body railing or as extending in the direction of the operating area rod in which one of the batteries is conveniently used.

Thus, the surgical light can be optimally aligned with its light cone on the surgical area, it is advantageous if the extension member is divided over at least one joint, preferably a plurality of joints in several segments. The joints may e.g. be designed as ball joints or hinged joints. They can thus have one or more degrees of freedom.

The light generated by the operating light can be particularly finely aligned if a segment is designed as a cantilever, which adjoins the attachment region and a segment is designed as a spring arm which is positioned between the operating light body and the cantilever.

As many degrees of freedom as possible can be provided when the luminaire body is connected to the spring arm via a partial cardanic or cardanic suspension, that is to say a further segment of the extension component.

In a variant not claimed, it is also advantageous if the lamp body has a housing within which the accumulator is located.

It is expedient if the lamp modules are powered by an electronic control unit with electricity, the control electronics is also connected to a charging unit, which in turn is connected by the accumulator. The control electronics controls all functions of the operating light. It also monitors the power input, so the "power-in". If the incoming current fails or fails, the accumulator takes over the power supply of the operating light. The charging unit, which may be integrated in the control electronics or is carried out separately, checks the charging voltage of the accumulator. If this is too low, the accumulator will be charged automatically. Likewise, the battery is switched off when falling below a critical voltage to prevent over-discharge.

It is advantageous if several light modules are mounted in front of a polysphere reflector system and preferably include LEDs. The power consumption can be reduced and achieve a good shadow resolution and light field homogeneity. Also special filter components can be used to guarantee cool and white light with optimal color rendering. Furthermore, innovative IRC halogen bulbs can be used.

Peripheral devices, such as a pilot laser system, a so-called "Surgi Cam", ie a camera system, can be coupled, for example via a network for digital data transfer of video, audio and control signals, the pilot laser system ensures secure positioning of the field.

The life of the accumulator is beneficial if the accumulator is designed as a lithium-polymer, lithium-ion, nickel-metal hybrid or lithium-iron phosphate accumulator.

It is also advantageous if a plurality of accumulators are installed in one or more components of the surgical light. In principle, it is also possible that several different accumulators are installed at different locations.

Fig. 1

eine Darstellung einer Operationsleuchte im Ausschnitt von der Seite bei Anbringung an einer Decke, und

Fig. 2

eine schematische Teilansicht des Leuchtenkörpers mit darin enthaltener Steuerelektronik, Ladeeinheit, Akkumulator und Lichtmodulen.

The invention will be explained in more detail below with the aid of a drawing, which reproduces details of a first embodiment. Show it:

Fig. 1

a representation of a surgical light in the cutout from the side when mounted on a ceiling, and

Fig. 2

a schematic partial view of the lamp body with therein contained control electronics, charging unit, accumulator and light modules.

The figures are merely schematic in nature and are only for the understanding of the invention. The same elements are provided with the same reference numerals.

In Fig. 1 a first embodiment of an operating light 1 according to the invention is shown. The operating light 1 has two lamp body 2, in each of which individual lamp modules 3 are used. These luminaire modules 3 have LEDs. It is possible that a single luminaire module 3 includes a single LED. The individual lighting modules 3 are within a housing 4, which forms the housing of the lamp body, used, in such a way that from them the light can be bundled from the outside in the direction of an operating area.

Following the housing 4, an extension member 5 is attached. On a side remote from the luminaire body 6 of the extension member 5, a mounting portion 7 is formed, which ensures a connection of the operating lamp 1 to a wall of a room, such as a ceiling 8 or to a mobile pedestal, such as a car. The extension member 5 has at least one boom 9 and a spring arm 10. The boom 9 is pivotally mounted on the attachment portion 7 and the spring arm 10 is pivotally mounted on the boom 9. Between the boom 9 and the spring arm 10, a hinge 11 is formed in the manner of a ball joint. A suspension 12, which is formed part gimbal or preferably gimbal, with the interposition of a joint 11, the attachment of the housing 4 of the lamp body 2 on the spring arm 10 safely.

A handle 13 shows from each of the present in the present embodiment, two lamp body 2 in the direction of the operation area and is fixed to the housing 4 or integrally formed therewith.

An accumulator 14 is arranged in at least one of the attachment region 7 seen from the light-body side portion of the surgical lamp 1. So he is, for example, as in Fig. 2 illustrated, located within the housing 4. In this case, an electronic control unit 15 and a charging unit 16 is used.

Coming back to Fig. 1 It should be noted that a first power line 17 leads to a switching power supply 18, is passed from the current to the control electronics 15. In between, a change-over relay 19 is optionally usable to couple an optional second power line 20 and thus in an emergency, in addition to the use of one or more accumulators 14 to ensure a power supply.

Usually, however, in the implementation of the invention, the second power line and the corresponding changeover relay 19 is dispensed with.

In Fig. 2 is also the special interconnection of the control electronics 15, the charging unit 16, the accumulator 14 and the lamp modules 3 characterized. In this case, the charging unit 16 is located between the control unit 15 and the accumulator 14.

LIST OF REFERENCE NUMBERS

1

surgical light

2

luminaire body

3

lamp module

4

casing

5

extension member

6

away from the luminaire body

7

attachment area

8th

blanket

9

boom

10

spring arm

11

joint

12

suspension

13

Handle

14

accumulator

15

control electronics

16

charging unit

17

first power line

18

Switching Power Supply

19

changeover relay

20

second power line

Claims (10)

1. Operating lamp (1) with a lamp unit (2) in which at least one lamp module (3) is fitted to light up an operating area, and with an extension component (5) which is attached to the lamp unit (2) and exhibits an attachment region (7) for fastening to a wall, to a ceiling or to a mobile stand, wherein at least one accumulator (14) is arranged in at least one portion of the operating lamp (1) located on the lamp unit side viewed from the attachment region (7), characterised in that the at least one accumulator (14) is located in a handle (13) fastened to the lamp unit (2).
2. Operating lamp (1) according to claim 1, characterised in that the handle (13) is embodied in the form of a rail preferably running 360° around the lamp unit (2) or in the form of a rod extending in the direction of the operating area.
3. Operating lamp (1) according to claim 1 or 2, characterised in that the extension component (5) is subdivided into a plurality of segments by means of at least one joint (11), preferably a plurality of joints (11).
4. Operating lamp (1) according to claim 3, characterised in that one segment is embodied in the form of an extension arm (9) which adjoins the attachment region (7), and one segment is embodied in the form of a spring arm (10).
5. Operating lamp (1) according to claim 4, characterised in that the lamp unit (2) is attached to the spring arm (10) by means of a cardanic or partly cardanic mounting (12).
6. Operating lamp (1) according to one of claims 1 to 5, characterised in that the lamp unit (2) exhibits a housing (4), wherein the handle (3) is fastened to this housing (4) or formed integrally with it.
7. Operating lamp (1) according to one of claims 1 to 6, characterised in that the at least one lamp module (3) is supplied with current through an electronic control unit (15), wherein the electronic control unit (15) is also connected with a charging unit (16) which for its part is connected with the at least one accumulator (14).
8. Operating lamp (1) according to one of claims 1 to 7, characterised in that a plurality of lamp modules (3) are mounted in front of a polyspherical reflector system and preferably comprise LEDs.
9. Operating lamp (1) according to one of claims 1 to 8, characterised in that the at least one accumulator (14) is embodied in the form of a lithium polymer, lithium ion, nickel metal hybrid, or lithium iron phosphate accumulator.
10. Operating lamp (1) according to one of claims 1 to 9, characterised in that a plurality of accumulators (14) are fitted in a component or a plurality of components of the operating lamp (1).

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