CN210077677U

CN210077677U - Medical imaging apparatus

Info

Publication number: CN210077677U
Application number: CN201821909484.1U
Authority: CN
Inventors: 斯特凡·格罗斯; 马蒂亚斯·霍夫
Original assignee: Siemens Healthcare GmbH
Current assignee: Siemens Healthcare GmbH
Priority date: 2017-11-20
Filing date: 2018-11-20
Publication date: 2020-02-18
Anticipated expiration: 2028-11-20
Also published as: DE202018004739U1; DE102017220692A1

Abstract

The utility model relates to a medical imaging device, which is provided with at least one imaging component, the imaging assembly is for generating image data of an examination object supported in an examination region, the imaging component is pivotably guided with respect to the examination region such that the imaging component can be positioned in different orbital angular positions with respect to an orbital rotation axis extending through the examination region, wherein at least one flexible line connected to the imaging element is movably supported in an energy supply chain, the energy supply chain having a plurality of chain links articulated to one another, each of which accommodates a longitudinal section of at least one flexible conductor, wherein the link elements of the energy supply chain are arranged within a spherical shell segment-shaped region surrounding the examination region for each orbital angular position of the imaging component.

Description

Medical imaging apparatus

Technical Field

The invention relates to a medical imaging device, in particular an X-ray device, having at least one imaging component for generating image data of an examination object, in particular a patient, which is supported in an examination area, the imaging component being pivotably guided in relation to the examination area, so that the imaging component can be positioned in different orbital angular positions in relation to an axis of rotation of a rail extending through the examination area.

Background

The imaging components of the medical imaging apparatus, i.e. for example the X-ray emitter or detector, are usually mounted movably in order to detect projection images, for example from different viewing directions. Other applications are tomography or tomosynthesis, in which projection data recorded from different directions are detected to produce a three-dimensional image. The power transmission means, in particular the conductors, must be arranged such that the necessary rotational and longitudinal movements of the imaging components for this can be carried out. In some X-ray devices, i.e. for example C-arm X-ray devices, the movement involves more than five axes here. The wire is typically mechanically loaded while in motion. In this case, damage to the power transmission device due to wear can occur, in particular at the joint region.

SUMMERY OF THE UTILITY MODEL

Based on this prior art, it is an object of the present invention to provide a medical imaging device with improved cable guidance.

The object is achieved by the features of the invention.

The invention is based on the object of providing an advantageous embodiment.

A medical imaging apparatus, in particular a C-arm X-ray apparatus or an X-ray computed tomography apparatus, comprises at least one imaging component for generating image data of a patient supported in an examination region, which imaging component is pivotably guided or supported with respect to the examination region such that the imaging component can be positioned in different orbital angular positions with respect to an orbital axis of rotation extending through the examination region. According to the utility model provides a: at least one flexible line connected to the imaging element is mounted so as to be movable in an energy supply chain (also referred to as an energy chain, E-chain, drag chain), which is mounted in particular so as to be movable. The energy supply chain has a plurality of chain links which are articulated to one another and each accommodate a longitudinal section of at least one flexible line, wherein the chain links of the energy supply chain are arranged in each angular position of the path of the imaging assembly within a spherical shell segment-shaped region which surrounds the examination region.

Rapid orbital movement of the imaging member about the axis of orbital rotation is common, for example, in the generation of three-dimensional image data of an examination object. The orbital movement is usually accompanied by a strong mechanical stress on the wires or cable bundles which are connected to the moving, in particular rotating, imaging component. By means of the power supply chain arranged in the spherical shell segment-shaped region optimized for the rotational movement around the examination area, the mechanical load of the flexible lines, in particular cable bundles, guided therein is minimized. The wires arranged within the power supply chain are thus well protected against wear.

The medical imaging device is preferably designed as an X-ray device, for example as an angiographic X-ray device or as an X-ray computed tomography device. Accordingly, in the design: the movably mounted imaging component comprises an X-ray detector, an X-ray emitter and/or a shading unit. In one possible embodiment, the X-ray detector and the X-ray emitter are carried by a C-shaped carrier arm and are each arranged opposite the examination region. The carrying arm is adjustable along a guide having at least one circular section such that the imaging member is pivotable about an orbital axis of rotation.

In the design scheme, the following steps are provided: the energy supply chain is arranged in a U-shaped manner within the spherical shell segment-shaped region, such that the relative extension of two chain segments running parallel to one another and connected to one another via a deflection region located therebetween is dependent on the rail angle position in which the at least one imaging component is oriented. In other words, the energy supply chain therefore connects the movably guided connecting point to the stationary connecting point, so that the length of the chain section is dependent on the position of the movable part, i.e. different rail angle positions for the imaging part. The energy supply chain is thus guided in a movable manner and, when the movable imaging component is adjusted, executes a travel movement about the axis of rotation of the rail, wherein the relative expansion of the two chain sections running parallel to one another changes.

In the design scheme, the following steps are provided: at least one first end of the energy supply chain is fixedly connected to the movably guided imaging component at least indirectly via the carrying arm, and a second end of the energy supply chain is fixedly connected to the stationary component of the medical imaging device. The carrier arm is, for example, substantially C-shaped and carries the X-ray detector and the X-ray emitter at its ends, such that the X-ray detector and the X-ray emitter are each arranged opposite the examination region. In other words, the carrying arm forms a first connection point for a first end of the energy supply chain to the movable part, wherein an opposite second end of the energy supply chain is connected to the stationary part.

In the design scheme, the following steps are provided: the end-side chain link at the first end is fixedly connected to the carrier arm, and the end-side chain link at the second end of the energy chain is fixedly connected to the stationary part.

In a further development: the energy supply chain is arranged in a U-shaped manner within the spherical shell segment-shaped region, wherein the extent of a chain segment along a segment of the carrying arm is dependent on the rail angle position in which the at least one imaging component is positioned. The energy supply chain therefore executes a travel movement about the orbital axis of rotation when the movable imaging part is adjusted, wherein the chain section, which usually comprises a plurality of chain links, changes along the extent of the carrier arm.

In one embodiment, the following chain links of the energy supply chain are connected to one another via a joint having a joint axis.

In one embodiment, the at least one imaging member is pivotally supported about an angular rotational axis extending perpendicular to the orbital rotational axis. The joint axes of the chain links are aligned in the radial direction with the centre of rotation, which is formed by the intersection between the orbital axis of rotation and the angular axis of rotation. Embodiments with imaging means which are guided adjustably about an orbital axis of rotation and an angular axis of rotation are known, for example, entirely in the field of C-arm X-ray devices or in the field of X-ray devices for angiography. The medical imaging device usually has a C-shaped carrying arm which has been proposed to carry the imaging component. The carrying arm can have, for example, a guide, in particular a telescopic guide, which has at least one circular-arc-shaped section extending in the circumferential direction about the axis of rotation of the rail. The angular axis of rotation extends perpendicular to the orbital axis of rotation and extends through the examination region such that the center of rotation, i.e., the intersection of the angular axis of rotation and the orbital axis of rotation, is substantially centered in the examination region. The arrangement of the energy supply chain in the spherical shell segment-shaped region in such a way that the joint axes of the chain links are radially aligned with the center of rotation is advantageous, since in this case the angular or orbital movement about the angular or orbital axis of rotation is at most not significantly impaired. In this way, a defined cable movement is ensured with minimal wear.

In a further development, a plurality of energy supply chains each having articulated chain links connected to one another and running parallel to one another are arranged in the spherical shell segment-shaped region, wherein a longitudinal section of a further flexible line is accommodated in a chain link of the further energy supply chain. In this way, it is possible to guide other lines, in particular for transmitting power to other movably mounted components, i.e. for example drives for angular and/or orbital movements, in a defined manner and to counteract mechanical overloading.

Drawings

For a further description of the invention reference is made to the embodiments illustrated in the drawings. Shown in the schematic diagram:

fig. 1 shows a perspective view of a medical imaging device with a C-shaped carrying arm and an energy supply chain for guiding an electrical power conductor;

FIG. 2 shows a perspective view of a subregion of the medical apparatus of FIG. 1;

fig. 3 shows a further perspective view of a subregion of the medical apparatus of fig. 1.

Parts that correspond to each other are provided with the same reference numerals throughout the figures.

Detailed Description

Fig. 1 shows a medical imaging device 1, which in an exemplary embodiment is designed as an angiographic X-ray device. The medical imaging apparatus 1 comprises a C-shaped carrier arm 2 which is fixedly connected to the roof via a top shaft 3 which is only schematically shown in fig. 1.

In a further embodiment, the carrying arm 2 is fixedly connected to the floor of the room via a floor bracket. Alternatively, it is proposed here that: the carrying arm 2 is arranged, for example, at a mobile or transportable base station, which can be positioned freely in a room.

At one end of the C-shaped carrying arm 2 an X-ray detector 5 is arranged. At the other end of the C-shaped carrier arm 2, an X-ray radiator 6 with a light shield 7 is arranged, so that the X-ray radiator 6 and the X-ray detector 5 are each on opposite sides of the examination region. In the examination area there is typically a patient table, not explicitly shown in fig. 1, for supporting a patient to be examined. Outside the envelope 8, which is shown transparent in fig. 3, cable guides or flex conductors are guided in bellows 9, 10, which serve in particular to feed power to the imaging component B, such as the already proposed X-ray emitter 6, the shading unit 7 and/or the X-ray detector 5.

The carrying arm 2 is rotatably mounted about a track rotation axis O and an angular rotation axis a extending perpendicularly thereto. The guide means 4 with the circular arc-shaped section guide the carrier arm 2 such that a movement about the axis of rotation O of the rail is possible.

Alternatively or additionally, it is proposed that: the carrier arm 2 is mounted so as to be pivotable about a longitudinal axis H, for example, in order to reach different body regions of a patient supported in the examination region and to be able to be imaged by means of the imaging device B. The carrying arm 2 can also be supported movably with respect to the roof or the floor of the room, so that at least a longitudinal movement in the room can be achieved. The guiding of the conductor or cable bundle takes place in the energy supply chain at least for an orbital rotational movement about the orbital rotational axis O, preferably for all rotational or translational degrees of freedom.

The energy supply chain 11 is located within the enclosure 8 and is shown in detail in fig. 2 and 3, wherein its design and arrangement are adapted to perform an angular or orbital movement about an angular rotational axis a and an orbital rotational axis O. To better illustrate the energy chain 11, the envelope 8 is only partially shown in fig. 2 and 3. The power supply chain 11 is located in the spherical shell segment-shaped region around the examination region, independently of the angular position of the carrying arm 2 with respect to the orbital axis of rotation O or the angular axis of rotation a.

Within the power supply chain 11, flexible lines, which are used in particular for power transmission, are guided in a manner and method which is not shown in detail. The energy supply chain 11 comprises a plurality of chain links 12 articulated to one another, which each accommodate a longitudinal section of a flexible conductor guided therein. The chain links 12 are connected to one another via joint axes G which extend parallel to the radial direction and are aligned with the center of rotation Z.

In a further development: a plurality of energy chains 11 is provided for accommodating further wires or cable bundles in the area of the spherical shell segment predetermined by the envelope 8.

The energy chain 11 is guided displaceably within the envelope 8. At least one end-side link 14 at the first end 13 is fixedly connected to the C-shaped support arm 2, thus forming a first connection point of the energy chain 11 to the movable component. At least one chain link 16 at the other end side at the opposite second end 15 is fixedly connected to the stationary part, for example to the enclosing member 8, so that a further connection of the energy chain 11 to the immovable part is formed.

The energy chain 11 runs in an endless or U-shaped manner within the packaging 8 and has two

chain sections

17, 18 running essentially parallel to one another, which are connected to one another via a deflection region 19.

The relative extension of the

chain segments

17, 18 with respect to one another and along the C-shaped carrier arm 2 is dependent on the angular position of the imaging part B about the rail axis of rotation O, i.e. in the orbital movement of the imaging part B, the energy chain 11 performs a running movement along the U-shaped rail, thereby ensuring a defined, low-wear cable movement of the wires guided therein.

While the details of the present invention have been illustrated and described in detail with reference to the preferred embodiments, the invention is not limited thereto. Other variants and combinations can be derived therefrom by those skilled in the art without departing from the scope of protection of the invention.

Claims

1. A medical imaging apparatus (1) having at least one imaging component (B, 5, 6, 7) for generating image data of an examination object supported in an examination region, the imaging component being pivotably guided with respect to the examination region such that the imaging component (B, 5, 6, 7) can be positioned in different orbital angular positions with respect to an orbital rotation axis (O) extending through the examination region,

it is characterized in that the preparation method is characterized in that,

at least one flexible line connected to the imaging components (B, 5, 6, 7) is mounted in a movable manner in an energy supply chain (11) having a plurality of chain links (12) articulated to one another, which each accommodate a longitudinal section of at least one flexible line, wherein the chain links (12) of the energy supply chain (11) are arranged within a spherical shell section-shaped region surrounding the examination region for each orbital angular position of the imaging components (B, 5, 6, 7).

2. Medical imaging apparatus (1) according to claim 1,

it is characterized in that the preparation method is characterized in that,

the medical imaging apparatus (1) is an X-ray apparatus.

3. Medical imaging apparatus (1) according to claim 1,

it is characterized in that the preparation method is characterized in that,

the subject is a patient.

4. Medical imaging apparatus (1) according to any one of claims 1 to 3,

it is characterized in that the preparation method is characterized in that,

the imaging means (B, 5, 6, 7) comprise an X-ray detector, an X-ray radiator or a shading unit.

5. Medical imaging apparatus (1) according to any one of claims 1 to 3,

it is characterized in that the preparation method is characterized in that,

the energy supply chain (11) is arranged in a U-shaped manner within the spherical shell segment-shaped region, wherein the relative extension of two chain segments running parallel to one another is dependent on the rail angle position in which at least one imaging component (B, 5, 6, 7) is positioned.

6. Medical imaging apparatus (1) according to any one of claims 1 to 3,

it is characterized in that the preparation method is characterized in that,

at least one first end of the energy supply chain (11) is fixedly connected with the movably guided imaging component (B, 5, 6, 7) at least indirectly via a carrying arm (2), and a second end of the energy supply chain (11) is fixedly connected with a stationary component of the medical imaging device (1).

7. Medical imaging apparatus (1) according to claim 6,

it is characterized in that the preparation method is characterized in that,

the end-side chain link at the first end is fixedly connected to the carrier arm and the end-side chain link at the second end is fixedly connected to the stationary part.

8. Medical imaging apparatus (1) according to claim 6,

it is characterized in that the preparation method is characterized in that,

the energy supply chain (11) is arranged in a U-shaped manner within the spherical shell segment-shaped region, wherein the extent of a chain segment along a segment of the carrying arm (2) is dependent on the rail angle position in which at least one imaging component is positioned.

9. Medical imaging apparatus (1) according to claim 7,

it is characterized in that the preparation method is characterized in that,

10. Medical imaging apparatus (1) according to any one of claims 1 to 3,

it is characterized in that the preparation method is characterized in that,

the chain links (12) following one another are connected to one another via a joint having a joint axis (G).

11. Medical imaging apparatus (1) according to claim 10,

it is characterized in that the preparation method is characterized in that,

at least one of the imaging members (B, 5, 6, 7) is pivotably supported about an angular axis of rotation (A) extending perpendicularly to the orbital axis of rotation (O), and the joint axis (G) of the chain link (12) is aligned in a radial direction with a center of rotation (Z) formed by the intersection between the orbital axis of rotation (O) and the angular axis of rotation (A).

12. Medical imaging apparatus (1) according to any one of claims 1 to 3,

it is characterized in that the preparation method is characterized in that,

a plurality of energy supply chains (11) each having articulated chain links (12) extending parallel to one another are arranged in the spherical shell segment-shaped region, wherein longitudinal sections of further flexible lines are accommodated in the chain links (12) of the further energy supply chains (11).