Medical device

Abstract

The utility model relates to a kind of medical equipment, it has multiple light-emitting strips, light-emitting strip has multiple individualizedly controllable light-emitting diode and the controller for the light-emitting diode of corresponding light-emitting strip respectively, controller has interface respectively, corresponding controller receives corresponding required light-emitting state dynamically via the interface, light-emitting state includes sub light-emitting state for light-emitting diode respectively, controller is configured, so that the controller utilizes corresponding sub light-emitting state individualizedly determines corresponding control for light-emitting diode, and corresponding light-emitting strip light-emitting diode is controlled corresponding to the control determined respectively, and light-emitting strip is supplied with electric energy by supply device, and light-emitting strip is associated with corresponding power limiting device, the electric power delivered to corresponding light-emitting strip by supply device is limited to predetermined maximum value regardless of required light-emitting state by means of the power limiting device.

Description

Technical Field

[0001] This utility model is based on a medical device. Background Technology

[0002] This type of medical device is known.

[0003] In medical devices, light-emitting strips are commonly used. These strips typically contain multiple individually controllable light-emitting diodes (LEDs) and a controller for the LEDs. For example, such strips are used in the transition areas of tunnels leading to CT and MR facilities. The light-emitting strips do not serve an actual technical function of the corresponding medical device but are used as a design element.

[0004] Based on safety regulations, such as ANSI / UL94, it must be reliably ensured that the luminous strip is only delivered a predetermined power (15W as specified in ANSI / UL94), or that the luminous strip is housed in a casing made of non-flammable material. The aforementioned limitation results in the use of only relatively weak LEDs, which therefore output only a small amount of light. This requirement makes the identifiability of LED operation difficult. While the last mentioned limitation allows LEDs to output more light, the identifiability of LED operation is similarly limited due to the enclosure. Summary of the Invention

[0005] The purpose of this invention is to achieve a feasibility that avoids the shortcomings of the prior art.

[0006] The stated objective is achieved by a medical device having the features of an embodiment of the utility model. Advantageous designs of the medical device are the subject of embodiments of the utility model.

[0007] Therefore, according to this utility model, a medical device is designed in the following manner.

[0008] The device has multiple light-emitting strips, each of which has multiple individually controllable light-emitting diodes and a controller for the light-emitting diodes of the respective light-emitting strip.

[0009] Each controller has an interface, through which it dynamically receives the required light emission state. The light emission state, for each light-emitting diode, includes sub-light emission states.

[0010] - The controller is configured such that it individually determines corresponding controls for light-emitting diodes based on their respective sub-emission states, and controls the light-emitting diodes of corresponding light-emitting strips according to the determined controls.

[0011] - The light-emitting strip is powered by a supply device and is associated with a corresponding power limiting device, by means of which the power supplied by the supply device to the corresponding light-emitting strip is limited to a predetermined maximum value regardless of the required light emission state.

[0012] Medical equipment can be, for example, CT facilities, MR facilities, C-arm X-ray facilities, or other types of large equipment for medical technology.

[0013] An appealing light effect can be achieved through dynamic manipulation. This is accomplished by dividing the light into multiple light-emitting strips and individually limiting the power of each strip: high-intensity LEDs can be used, allowing for high power consumption as a whole through the multiple light-emitting strips, thus achieving high light intensity while still complying with safety regulations, without having to house the light-emitting strips within a casing.

[0014] The maximum power can be determined as needed. For example, the maximum power could be 15W.

[0015] Preferably, the power limiting device has two sub-devices, one of which is configured as a voltage limiting device and the other as a current limiting device. Thus, power limiting can be implemented in a particularly simple manner and method.

[0016] Preferably, the voltage limiting devices of the power limiting device are combined into a common voltage limiting device, while the current limiting device is specifically associated with the corresponding light-emitting strip. This keeps the cost of the circuit technology low.

[0017] Preferably, the medical device has a unified control unit, which presets the required light emission state for the controller. This simplifies the coordinated control of the light-emitting strips.

[0018] Preferably,

[0019] - The controller of at least one of the light-emitting strips has another interface, which is connected to the interface of the controller of another light-emitting strip via said other interface, and

[0020] - A unified control device uses another interface to transmit the required light emission state for another light-emitting strip to the controller, and the controller transmits the required light emission state for another light-emitting strip to the controller of the other light-emitting strip via another interface.

[0021] Therefore, the design is particularly advantageous because only a single interface (usually a serial interface) is required for the unified control device for each group of such light-emitting strips.

[0022] The luminescent strips can be connected in series with each other in multiple levels if necessary.

[0023] Preferably, a transmission circuit is provided between the other interface and the interface of the other controller. By means of the transmission circuit, while the required light emission state for the other light-emitting strip is transmitted to the controller of the other light-emitting strip, the transmission of electrical power between the other interface of the controller of one light-emitting strip and the interface of the controller of the other light-emitting strip is also suppressed in the following fault conditions: a short circuit occurs between the energy supply of one light-emitting strip and the interface of that light-emitting strip or the other interface, and / or a short circuit occurs between the energy supply of the other light-emitting strip and the interface of the other light-emitting strip.

[0024] The corresponding transmission circuit is known to those skilled in the art. The transmission circuit may, for example, be configured as an optocoupler, an RS 485 interface, or a fuse designed to corresponding specifications.

[0025] This transmission circuit is particularly necessary when data and energy are delivered to the corresponding luminous strip via a common pre-fabricated interface. In this case, the transmission circuit has an energy input terminal in addition to the data input terminal, which is connected to another interface of another controller, through which electrical energy is supplied to the transmission circuit (only). On the output side, the transmission circuit in this case has a pre-fabricated plug-in connection device corresponding to the plug-in connection device of another luminous strip.

[0026] The method described can even be applied when data and energy are transmitted to the corresponding light strip via a common line, so that the same line transmits not only data but also electrical energy.

[0027] Preferably, the light-emitting diodes of the corresponding light-emitting strips are respectively combined into groups of light-emitting diodes, wherein the light-emitting diodes of the corresponding groups are disposed in a common housing, and the light-emitting diodes of the corresponding groups are configured such that the light-emitting diodes of the corresponding groups emit light of different wavelengths from each other.

[0028] Within the scope of this invention, "casing" refers to the corresponding assembly unit disposed on the light-emitting strip. The corresponding group of light-emitting diodes can emit red, blue, and green light, enabling the emission of the entire color spectrum and white light through corresponding combinations.

[0029] The design is given in particular when the corresponding group of LEDs should (synthetically) emit white light or the color of the light emitted by the corresponding group of LEDs should (synthetically) change dynamically. Attached Figure Description

[0030] The features, characteristics, and advantages of this invention described above, as well as the ways and methods of achieving said features, characteristics, and advantages, become clearer and easier to understand in conjunction with the following description of the embodiments, which are illustrated in detail with reference to the accompanying drawings. These are shown in the schematic diagrams herein:

[0031] Figure 1 Showing medical equipment,

[0032] Figure 2 A block diagram showing the luminescent strips is provided.

[0033] Figure 3 A block diagram showing multiple luminescent stripes is provided.

[0034] Figure 4 A set of light-emitting diodes is shown. Detailed Implementation

[0035] Figure 1 Medical device 1 is schematically shown. Medical device 1 has a tunnel 2 through which a patient (not shown) can be pushed while lying on an examination bed. Tunnel 2 is typically present when medical device 1 is a CT or MR facility. In other designs of medical device 1, tunnel 2 is not required.

[0036] The applicant notes here that people of male or female identity are included, regardless of the grammatical gender of a particular personal term—for example, the term "patient" in this case.

[0037] Device 1 has multiple light-emitting strips 3. The light-emitting strips 3 can be straight or—as in… Figure 1 As shown—it can be curved or arc-shaped. The length and width of the light-emitting strip can be determined as needed. Light-emitting strip 3 is typically constructed identically. The following is combined with… Figure 2 The principle of circuit technology for constructing a single light-emitting strip 3 is explained.

[0038] according to Figure 2 The light-emitting strip 3 has multiple light-emitting diodes 4 and a controller 5 for the light-emitting diodes 4. The light-emitting diodes 4 can be individually controlled by the controller 5. Regarding the data communication between the controller 5 and the light-emitting diodes 4, the light-emitting diodes 4 can correspond to... Figure 2 The diagram is directly controlled by controller 5. Alternatively, it is feasible to arrange them in series. Combinations of these methods are also possible.

[0039] The controller 5 has an interface 6. The controller 5 dynamically receives the required light emission state Z* from the control device 7 of the medical device 1 via the interface 6. Therefore, the control device 7 presets the required light emission state Z* for the controller 5. For example, in... Figure 2 As indicated by the summation symbol, the corresponding required light emission state Z* for each of the light-emitting diodes 4 in the light-emitting strip 3 includes a sub-light emission state z*. The corresponding sub-light emission state z* corresponds to the state that the corresponding light-emitting diode 4 should exhibit, i.e., the luminous flux (= output) that the corresponding light-emitting diode 4 should emit. The corresponding sub-light emission state z* is the result of the corresponding control c* (= input) of the corresponding light-emitting diode 4. Interface 6 is typically a serial interface.

[0040] If necessary, controller 5 may have another interface 8, and interface 6 of controller 5 of another light-emitting strip 3 may be connected to said other interface 8. The other light-emitting strip 3 and its components are... Figure 2 They are not shown together in the text.

[0041] Controller 5 can be configured as a microcontroller that executes a program. However, regardless of the specific design of controller 5, controller 5 continuously and dynamically receives the corresponding required light emission state Z* via interface 6. For the light-emitting diodes 4 of the corresponding light-emitting strip 3, it individually determines the corresponding control c* using the corresponding sub-light emission state z*, and controls the light-emitting diodes 4 of the corresponding light-emitting strip 3 according to the determined control c*. The control c* is determined such that the actual light emission state z of the corresponding light-emitting diode 4 corresponds to the corresponding sub-light emission state z* of the light-emitting diode 4.

[0042] The light-emitting strip 3 is also connected to the supply device 9. The light-emitting diode 4 and the controller 5 thus supply electrical energy to the light-emitting strip 3 as a whole via the supply device 9.

[0043] For operational security reasons, according to Figure 3 The light-emitting strip 3 is associated with a corresponding power limiting device 10. The power limiting device 10 limits the electrical power supplied by the supply device 9 to the corresponding light-emitting strip 3 to a predetermined maximum value. This limitation is performed independently of the desired light emission state Z* of the corresponding light-emitting strip 3.

[0044] For example, the corresponding power limiting device 10 can correspond to the power limiting device 10 in ... Figure 3 The illustration shows two sub-devices 11 and 12, where sub-device 11 is configured as a voltage limiting device and sub-device 12 is configured as a current limiting device. In this case, the voltage limiting device 11 can limit the voltage output from the supply device 9 to a predetermined value, for example, 5V. The voltage limiting device 11 can be a component of the supply device 9. Similarly, the current limiting device 12 can limit the current supplied to the corresponding light-emitting strip 3 to a predetermined value, for example, 3A. In its simplest case, the current limiting device 12 can be configured as a fuse. The values ​​used for voltage and current limiting are merely exemplary.

[0045] Corresponding to in Figure 3 As illustrated in the diagram, the voltage limiting device 11 of the power limiting device 10 can be combined to form a common voltage limiting device. Conversely, the current limiting device 12 is specifically associated with the corresponding light-emitting strip 3.

[0046] In addition, from Figure 3 As can be seen, the control device 7 is configured as a unified control device, which is not only a single controller 5, but also a set of controllers 5 of the light-emitting strip 3 that jointly preset the required light-emitting state Z*.

[0047] In addition, according to Figure 3 Not every controller 5 is directly connected to the control device 7. More precisely, in Figure 3 The controller 5 of the light-emitting strip 3 (hereinafter referred to as "another light-emitting strip 3") shown on the right side of the middle is indirectly connected via... Figure 3 Another interface 8 of the controller 5 of the light-emitting strip 3 shown on the left (hereinafter referred to as "one light-emitting strip 3") is connected to the control device 7. Therefore, the control device 7 transmits the required light emission state Z* for the other light-emitting strip 3 to the controller 5 of one light-emitting strip 3. The controller 5 then forwards the required light emission state Z* for the other light-emitting strip 3 to the controller 5 of the other light-emitting strip 3 via its own other interface 8.

[0048] To prevent undesirable transfer of electrical energy from one light-emitting strip 3 to another, or vice versa, a transmission circuit 13 is provided between another interface 8 of the controller 5 of one light-emitting strip 3 and an interface 6 of the controller 5 of the other light-emitting strip 3. With the help of the transmission circuit 13, while the required light emission state Z* for the other light-emitting strip 3 is transmitted to the controller 5 of the other light-emitting strip 3, the transmission of electrical power between the other interface 8 of the controller 5 of one light-emitting strip 3 and the interface 6 of the controller 5 of the other light-emitting strip 3 is suppressed. This also applies when a short circuit occurs between the energy supply of one light-emitting strip 3 and the interface 6 of one light-emitting strip 3 or the other interface 8. This also continues to apply when a short circuit occurs between the energy supply of the other light-emitting strip 3 and the interface 6 of the other light-emitting strip 3. For example, the transmission circuit 13 can be configured as follows: Figure 3 As shown, it is configured as an optocoupler. Optocouplers can be configured as needed for unidirectional or bidirectional data transmission.

[0049] Corresponding to Figure 4 The diagram shows that the multiple light-emitting diodes 4 in the corresponding light-emitting strips 3 are combined into corresponding groups 14 of light-emitting diodes 4. The light-emitting diodes 4 in the corresponding groups 14 emit light of different wavelengths from each other. This is in... Figure 4The LEDs in group 14 are represented by the letters R, G, and B, which represent the colors red, green, and blue. Furthermore, the corresponding group 14 is typically associated with control logic 15. The LEDs 4 of the corresponding group 14—typically including control logic 15—are housed in a common housing 16.

[0050] A supply voltage U is provided to control logic 15 and the corresponding group 14 of LEDs 4. Control logic 15 is also connected to ground potential GND. A control signal D is provided to control logic 15, which includes the control c* for the corresponding group 14 of LEDs 4. Thus, control logic 15 controls the corresponding group 14 of LEDs 4 accordingly. If necessary, control logic 15 also outputs an additional control signal D', which determines another group 14 of LEDs 4 for the corresponding light-emitting strip 3.

[0051] In the case of group 14 forming the light-emitting diode 4, Figure 2 The blocks shown in the figure and marked with reference numeral 4 (for light-emitting diodes) represent such group 14 of light-emitting diodes 4.

[0052] Therefore, in summary, this utility model relates to the following facts:

[0053] Medical device 1 has multiple light-emitting strips 3, each of which has multiple individually controllable light-emitting diodes 4 and a controller 5 for the light-emitting diodes 4 of the respective light-emitting strip 3. Each controller 5 has an interface 6, through which it dynamically receives a corresponding desired light-emitting state Z*, the light-emitting state Z* comprising sub-light-emitting states z* for each light-emitting diode 4. The controller 5 is configured such that it individually determines a corresponding control c* for each light-emitting diode 4 using the corresponding sub-light-emitting state z*, and controls the light-emitting diodes 4 of the respective light-emitting strip 3 according to the determined control c*. The light-emitting strips 3 are supplied with electrical power by a supply device 9. Each light-emitting strip 3 is associated with a corresponding power limiting device 10, by means of which the electrical power supplied by the supply device 9 to the respective light-emitting strip 3 is limited to a predetermined maximum value independent of the desired light-emitting state Z*.

[0054] This invention has many advantages. In particular, the luminous strip 3 can be operated with significant power and thus sufficient brightness in a simple and safe manner.

[0055] Although the details of the present invention have been described in detail through preferred embodiments, the present invention is not limited to the disclosed examples, but other variations can be derived by those skilled in the art without departing from the protection scope of the present invention.

Claims

1. A medical device, Its features are, The device has multiple light-emitting strips (3), each of which has multiple individually controllable light-emitting diodes (4) and a controller (5) for the light-emitting diodes (4) of the respective light-emitting strip (3). The controller (5) has an interface (6) and the controller (5) dynamically receives the required light emission state (Z*) via the interface (6). The light emission state (Z*) includes a sub-light emission state (z*) for the light-emitting diode (4). The controller (5) is configured such that it individually determines a corresponding control (c*) for each light-emitting diode (4) using the corresponding sub-light-emitting state (z*), and controls the light-emitting diodes (4) of the corresponding light-emitting strips (3) according to the determined control (c*). The light-emitting strip (3) is supplied with electrical energy by the supply device (9), and the light-emitting strip (3) is associated with a corresponding power limiting device (10), by means of which the power limiting device (10) limits the electrical power supplied by the supply device (9) to the corresponding light-emitting strip (3) to a predetermined maximum value independent of the required light-emitting state (Z*).

2. The medical device according to claim 1, Its features are, The power limiting device (10) has two sub-devices (11, 12), one of which is configured as a voltage limiting device and the other is configured as a current limiting device.

3. The medical device according to claim 2, Its features are, The voltage limiting devices of the power limiting device (10) are combined into a common voltage limiting device, and the current limiting device is specifically associated with the corresponding light-emitting strip (3).

4. The medical device according to claim 1, 2, or 3, Its features are, The medical device has a unified control device, which presets the required light emission state (Z*) for the controller (5).

5. The medical device according to claim 4, Its features are, - The controller (5) of at least one of the light-emitting strips (3) has another interface (8), and the controller (5) is connected via the other interface (8) to the interface (6) of the controller (5) of the other light-emitting strip (3), and - The unified control device (7) transmits the required light emission state (Z*) for the other light emission strip (3) to the controller (5) via the other interface (8), and the controller (5) transmits the required light emission state (Z*) for the other light emission strip (3) to the controller (5) of the other light emission strip (3) via the other interface (8).

6. The medical device according to claim 5, Its features are, A transmission circuit (13) is provided between the interface (6) of another controller (5) and the other interface (8). By means of the transmission circuit (13), although the required light emission state (Z*) for the other light-emitting strip (3) is transmitted to the controller (5) of the other light-emitting strip (3) on the one hand, the transmission of electrical power between the other interface (8) of the controller (5) of one light-emitting strip (3) and the interface (6) of the controller (5) of the other light-emitting strip (3) is also suppressed in the following fault conditions: in the fault condition, a short circuit occurs between the energy supply of the one light-emitting strip (3) and the interface (6) of the one light-emitting strip (3) or the other interface (8) and / or a short circuit occurs between the energy supply of the other light-emitting strip (3) and the interface of the other light-emitting strip (3).

7. The medical device according to any one of the preceding claims, Its features are, The light-emitting diodes (4) of the corresponding light-emitting strips (3) are respectively combined into groups (14) of light-emitting diodes (4), and the light-emitting diodes (4) of the corresponding groups (14) are disposed in a common housing (16), and the light-emitting diodes (4) of the corresponding groups (14) are configured such that the light-emitting diodes (4) of the corresponding groups (14) emit light of different wavelengths from each other.

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