Medical treatment or examination device

Patent metadata

Field	Value
Publication number	US-10076288-B2
Application number	US-201414272723-A
Country	US
Kind code	B2
Filing date	May 8, 2014
Priority date	May 8, 2013
Publication date	Sep 18, 2018
Grant date	Sep 18, 2018

Abstract

A medical treatment or examination device includes at least one device component that may move relative to at least one other device component via a drive device. A measuring device is provided for detecting a load acting on the movable device component. The measuring device includes a support that bends due to the load. The support, at least in a bending region, has a section producing a magnetic field. The measuring device also includes at least one coil that is assigned to the section and in which the magnetic field undergoing a change as a result of bending due to a load induces an induction current that serves as measurement signal describing the load.

First claim

The invention claimed is:

1. A medical treatment or examination device comprising:
a patient bearing table having a table top and a table foot on which the table top is mounted, wherein the table top is movable relative to the table foot via a drive device;
a measuring device connecting the table top and the drive device, wherein the measuring device is operable to detect a load acting on the table top, the measuring device comprising:
a ferromagnetic support operable to bend due to the load, the ferromagnetic support including a section operable to produce, at least in a bending region, a magnetic field; and
a coil that is assigned to the section of the ferromagnetic support, wherein the coil is configured to induce an induction current based on a change in the magnetic field as a result of bending due to the load, wherein the induction current serves as a measurement signal describing the load.

2. The medical treatment or examination device of claim 1 , wherein the section is permanently magnetic.

3. The medical treatment or examination device of claim 2 , wherein the permanently magnetic section is disposed on the ferromagnetic support, or a permanent magnet is arranged on the ferromagnetic support, the permanent magnet being securely fastened to and moving with the bending region of the ferromagnetic support.

4. The medical treatment or examination device of claim 1 , wherein the ferromagnetic support is a hollow shaft, the coil being arranged within or outside of the hollow shaft.

5. The medical treatment or examination device of claim 4 , wherein the coil is arranged on a coil holder.

6. The medical treatment or examination device of claim 1 , wherein the coil is a first coil, and the medical treatment or examination device further comprises a second coil, and
wherein the first coil and the second coil form a pair of coils and are arranged in a row, both axially and in a manner aligned with one another.

7. The medical treatment or examination device of claim 4 , wherein the coil is a first coil of a plurality of coils, each coil of the plurality of coils operable to supply a separate measurement signal.

8. The medical treatment or examination device of claim 7 , wherein the plurality of coils or coil pairs of the plurality of coils are arranged in an interior of the hollow shaft and are arranged around a soft-magnetic core.

9. The medical treatment or examination device of claim 1 ,
wherein the table top is mounted in a vertically movable manner.

10. The medical treatment or examination device of claim 3 , wherein the ferromagnetic support is a hollow shaft, the coil being arranged within or outside of the hollow shaft.

11. The medical treatment or examination device of claim 10 , wherein the coil is arranged on a coil holder.

12. The medical treatment or examination device of claim 11 , wherein the coil is a first coil, and the medical treatment or examination device further comprises a second coil, and
wherein the first coil and the second coil form a pair of coils and are arranged in a row, both axially and in a manner aligned with one another.

13. The medical treatment or examination device of claim 3 , wherein the coil is a first coil, and the medical treatment or examination device further comprises a second coil, and
wherein the first coil and the second coil form a pair of coils and are arranged in a row, both axially and in a manner aligned with one another.

14. The medical treatment or examination device of claim 3 , wherein the coil is a first coil of a plurality of coils, each coil of the plurality of coils operable to supply a separate measurement signal.

15. The medical treatment or examination device of claim 5 , wherein the coil is a first coil of a plurality of coils, each coil of the plurality of coils operable to supply a separate measurement signal.

16. The medical treatment or examination device of claim 15 , wherein the plurality of coils or coil pairs of the plurality of coils are arranged in an interior of the hollow shaft and are arranged around a soft-magnetic core.

17. A medical treatment or examination device comprising:
a patient bearing table having a table top and a device component on which the table top is mounted, wherein the table top is movable relative to the device component via a drive device;
a measuring device connecting the table top and the drive device, wherein the measuring device is operable to detect a load acting on the table top, the measuring device comprising:
a hollow support operable to bend due to the load, the hollow support including a section operable to produce, at least in a bending region, a magnetic field; and
a plurality of coils assigned to the section of the hollow support, wherein the coil is configured to induce an induction current based on a change in the magnetic field as a result of bending due to the load, wherein the induction current serves as a measurement signal describing the load,
wherein the plurality of coils is arranged in an interior of the hollow support and around a soft-magnetic core.

Assignees

• Mulzer Harald
• Neuber Wolfgang
• Siemens Ag

Inventors

• Mulzer Harald
• Neuber Wolfgang

Classifications

• A61B6/44 Primary

  Constructional features of apparatus for radiation diagnosis · CPC title

• A61B6/04 Primary

  Positioning of patients; Tiltable beds or the like · CPC title

• A61B6/4441

  the rigid structure being a C-arm or U-arm · CPC title