PATIENT SUPPORTING DEVICE, TREATMENT APPARATUS WITH A PATIENT SUPPORTING DEVICE AND CORRESPONDING METHOD FOR CONTROLLING AND/OR REGULATING A MEDICAL TREATMENT DEVICE

• US 20130204098A1
• Filed: 07/19/2011
• Published: 08/08/2013
• Est. Priority Date: 07/19/2010
• Status: Active Grant

• Current Assignee: Fresenius Medical Care Deutschland GmbH (Fresenius Medical Care AG)
• Original Assignee: Fresenius Medical Care Deutschland GmbH (Fresenius Medical Care AG)
• Inventors: Chamney, Paul, Wabel, Peter, Moissl, Ulrich, Wieskotten, Sebastian
• Granted Patent: US 9,743,843 B2
• Time in Patent Office: Days
• US Class Current: 600/301
• CPC Class Codes: A61B 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• CPC Class Codes: A61B 5/0537 Measuring body composition by impedance, e.g. tissue hydration or fat content
• CPC Class Codes: A61B 5/1072 measuring distances on the body, e.g. measuring length, height or thickness A61B5/1076 takes precedence
• CPC Class Codes: A61B 5/1073 Measuring volume, e.g. of limbs
• CPC Class Codes: A61B 5/1079 using optical or photographic means
• CPC Class Codes: A61B 5/1172 using fingerprinting
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/14546 for measuring analytes not otherwise provided for, e.g. ions, cytochromes
• CPC Class Codes: A61B 5/1455 using optical sensors, e.g. spectral photometrical oximeters
• CPC Class Codes: A61B 5/1468 using chemical or electrochemical methods, e.g. by polarographic means A61B5/1486 takes precedence
• CPC Class Codes: A61B 5/242 Detecting biomagnetic fields, e.g. magnetic fields produced by bioelectric currents
• CPC Class Codes: A61B 5/4836 Diagnosis combined with treatment in closed-loop systems or methods A61B5/0036 takes precedence
• CPC Class Codes: A61B 5/4869 Determining body composition
• CPC Class Codes: A61B 5/6887 mounted on external non-worn devices, e.g. non-medical devices
• CPC Class Codes: A61B 5/6891 Furniture
• CPC Class Codes: A61B 5/70 Means for positioning the patient in relation to the detecting, measuring or recording means
• CPC Class Codes: A61B 7/00 Instruments for auscultation
• CPC Class Codes: A61G 15/02 Chairs with means to adjust position of patient; Controls therefor
• CPC Class Codes: A61G 15/12 Rests specially adapted therefor, e.g. for the head or feet A61G15/105 takes precedence
• CPC Class Codes: A61G 2210/00 Devices for specific treatment or diagnosis
• CPC Class Codes: A61G 2210/20 : for dialysis
• CPC Class Codes: A61G 7/075 : for the limbs
• CPC Class Codes: A61M 1/14 : Dialysis systems; Artificial kidneys; Blood oxygenators semi-permeable membranes characterised by the material, manufacturing processes therefor B01D71/00 ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
• CPC Class Codes: A61M 1/1611 : Weight of the patient
• CPC Class Codes: A61M 2230/65 : Impedance, e.g. conductivity, capacity

Abstract

The subject matter is a patient supporting device for supporting a patient during a medical treatment, in particular a dialysis treatment, and a treatment apparatus with such a patient supporting device, and a corresponding method for controlling and/or regulating a medical treatment device, in particular a dialysis device, using such a patient supporting device.

Claims

1. Patient supporting device for supporting a patient

with an apparatus for carrying out a bioimpedance measurement on a patient'"'"'s body,

wherein this apparatus comprises

a device for coupling a measurement signal into the patient'"'"'s body and

a device for coupling an electrical measurement value thereby generated in the patient'"'"'s body out of the patient'"'"'s body,

and an interface for connecting to a medical treatment device,

wherein via this interface the data correlated with the electrical measurement value can be transmitted to the medical treatment device, by means of which the medical treatment device can be controlled and/or regulated.

2. Patient supporting device according to claim 1, characterized in that

the medical treatment device is a dialysis device.

3. Patient supporting device according to claim 1, characterized in that

the apparatus for carrying out a bioimpedance measurement comprises a device for determining the patient'"'"'s weight.

4. Patient supporting device according to claim 1, characterized in that the apparatus for carrying out a bioimpedance measurement comprises at least two electrodes for contacting the patient'"'"'s body for coupling the measurement signal into the patient'"'"'s body (=coupling-in electrodes), preferably by impressing a measurement current into the patient'"'"'s body, and

at least two electrodes for contacting the patient'"'"'s body for coupling the electrical measurement value generated by the measurement signal in the patient'"'"'s body out of the patient'"'"'s body (=coupling-out electrodes), preferably by capturing a change in potential generated by the measurement signal in the patient'"'"'s body.

5. Patient supporting device according to claim 1, characterized in that the apparatus for carrying out a bioimpedance measurement comprises a plurality of coupling-in electrodes and coupling-out electrodes,

preferably at least one coupling-in electrode and at least one coupling-out electrode, for contacting each arm and each leg of the patient, preferably for carrying out a segmental bioimpedance measurement.

6. Patient supporting device according to claim 1, characterized in that the bioimpedance measurement is bioimpedance spectroscopy and/or bioimpedance vector analysis, preferably with selective detection of amplitude variation and phase displacement in the electrical measurement value, particularly preferably at a high resolution.

7. Patient supporting device according to claim 1, characterized in that the bioimpedance measurement comprises a linear and/or a non-linear analysis of the electrical measurement value.

8. Patient supporting device according to claim 1, characterized in that the electrical measurement value of the bioimpedance measurement in the patient'"'"'s body can be evaluated together with a blood analysis in an extracorporeal circulation of the dialysis device.

9. Patient supporting device according to claim 1, characterized in that the patient supporting device has a device for determining the patient'"'"'s height, preferably with sensors and/or sensor arrays, in particular pressure sensors and/or pressure sensor arrays, which are preferably disposed in the area of patient supporting surfaces of the patient supporting device.

10. Patient supporting device according to claim 1, characterized in that the patient supporting device comprises an optical measurement device for the preferably multi-dimensional, in particular three-dimensional detection of the patient'"'"'s measurements.

11. Patient supporting device according to claim 1, characterized in that the patient supporting device comprises an apparatus for the detection and/or calculation of the hydrostatic pressure at least by the use of position adjustment parameters of the patient supporting device, in particular the inclination of the back rest and/or leg rest and/or foot rest.

12. Patient supporting device according to claim 1, characterized in that the patient supporting device comprises an apparatus for detecting the positions of the arm rests of the patient supporting device.

13. Patient supporting device according to claim 1, characterized in that the patient supporting device comprises a motor-driven adjusting device preferably for at least the back rest and/or leg rest and/or foot rest.

14. Patient supporting device according to claim 13, characterized in that the motor-driven adjusting device can be controlled by the medical treatment device.

15. Patient supporting device according to claim 1, characterized in that the patient supporting device comprises a device for determining the patient'"'"'s identity, preferably using a fingerprint sensor.

16. Treatment apparatus with

a patient supporting device according to claim 1,

a medical treatment device and

an evaluation apparatus for evaluating the bioimpedance from the electrical measurement value that is coupled out by the apparatus for carrying out a bioimpedance measurement, wherein the medical treatment device can be controlled and/or regulated by the bioimpedance.

17. Method for controlling and/or regulating a medical treatment device with the following steps:

positioning a patient on a supporting surface of a patient supporting device with at least two electrodes for contacting the patient'"'"'s body for coupling the measurement signal into the patient'"'"'s body (=coupling-in electrodes), and

at least two electrodes for contacting the patient'"'"'s body for coupling the electrical measurement value generated by the measurement signal in the patient'"'"'s body out of the patient'"'"'s body (=coupling-out electrodes), wherein the positioning of the patient takes place such that parts of the surface of the patient'"'"'s skin make electrical contact with the coupling-in electrodes and coupling-out electrodes,

coupling a measurement signal into the patient'"'"'s body, preferably by impressing a measurement current into the patient'"'"'s body,

coupling an electrical measurement value that is thereby generated in the patient'"'"'s body out of the patient'"'"'s body, preferably by capturing a change in potential generated by the measurement signal in the patient'"'"'s body,

detecting the electrical measurement value,

determining a bioimpedance using the measured electrical measurement value,

using the determined bioimpedance for controlling and/or regulating the medical treatment device.

18. Method according to claim 17, characterized in that the medical treatment device is a dialysis device.

19. Method according to claim 17, characterized in that the method comprises the following further steps:

detection by the medical treatment device of a patient collapse and/or critical circulation parameters; and

controlling a motor-driven adjusting device of the patient supporting device in order to bring the patient supported by the supporting surface into a shock position.