EP3895678A1 - Device and method for the networked transport of patients or mobility-impaired persons - Google Patents

Abstract

The invention relates to a system for the networked transport of patients or disabled persons in a transport chair (21) with the following features: a) a transport vehicle with: a chassis (1), drive wheels (12) and a bridge track (3) on a liftable and lowerable bridge platform (11), a rotatable carriage (5) with a drive (4) for fixing a docking traverse (6) being provided on the bridge track (3), wherein an adjusting element (31 ) is provided for actuating front lifting rods (53) and rear lifting rods (36), and an intermediate lever arrangement (36, 47, 49, 51) is provided for lifting the bridge platform (11), by means of which the load lying on it is achieved is located directly in the area of the drive wheels (12), b) a system for energy supply, which is either via inductive lines laid in the ground, or via stationary approachable energy supply stations onen is supplied, c) a transport chair (21) with a cross member (25) and a docking point for the docking cross member (6) of the transport vehicle, and d) a control center for controlling the progress of the transport.

Description

The invention relates to a device and a method for the networked transport of patients or persons with restricted mobility.

As a visitor or patient in a hospital or a nursing ward, you will soon realize that a major problem is to transport people in need of treatment from one treatment location to another treatment location or to the respective resting place. As a rule, this is done by transporting a bed from two caregivers who are requested at a certain time and then push the respective bed with the patient in question across different corridors and floors, deliver it to the destination and bring it back after the treatment. This requires a very high level of personnel expenditure and, above all, costs a lot of time.

For the state of the art, refer to the publication DE 20 2013 103 255 U1 referenced. According to the information in claim 1 of this document, this relates to an electric transport trolley for transporting hospital beds, comprising: a support frame (1) which has a support platform (11) on the bottom and is provided with a stand (12) on both sides; a drive unit (2) which has at least one electric motor (21) attached to the support platform (11), two drive wheels (22) and two rollers (23), the two drive wheels (22) extending through a motor shaft of the electric motor (21) rotate and the two drive wheels (22) together with the two rollers (23) support the complete electric trolley;
at least one locking device (3) which is located between the two uprights (12) of the support frame (1) and has a lever (31) and a clamping unit (33), the clamping unit (33) having a first and a second clamping jaw (331 , 332) and wherein the second clamping jaw (332) moves away from the first clamping jaw (331) under the action of the lever (31), or. can be moved towards it; and
an electronic control device (4) which is electrically connected to the electric motor (21) in order to start the electric motor (21).

According to the information regarding the underlying tasks, the DE 20 2013 103 255 U1 known trolleys essentially to move a hospital bed quickly with less effort and to relieve nurses.

• Diese Aufgabe wird durch die Vorrichtung nach Anspruch 1
  Vorrichtung zum vernetzten Befördern von Patienten oder bewegungsbehinderten Personen in einem Krankenbett, bzw. Pflegebett mit den folgenden Merkmalen:
  1. a) einem ersten (29) und einem zweiten (30), in gleicher Weise aufgebauten, Transportfahrzeug mit jeweils einem Fahrgestell (1) und mit einer Brückenbahn (3) auf einer anhebbaren und absenkbaren Brückenplattform (11), wobei auf der Brückenbahn (3) ein drehbarer Fahrschlitten (5) mit einem Antrieb (4) zur Festlegung einer Andocktraverse (6) vorgesehen ist,
  2. b) einem Krankenbett mit einer Lafette (27) mit einem Querträger (28) und einer Andockstelle für die Andocktraverse (6) des ersten Transportfahrzeugs (29) und einer Andockstelle für einen langen Anschlag (15) der Andocktraverse (6) des zweiten Transportfahrzeugs (30),
  3. c) einem, von einem Antrieb 32 angetriebenen, Stellelement (31) zur Betätigung von vorderen Hubstangen (53) und hinteren Hubstangen (36) , wobei mittels einer dazwischen liegenden Hebelanordnung (36,47,49,51) erreicht wird, dass der Schwerpunkt der aufliegenden Last direkt im Bereich der Antriebsräder (12) liegt und wobei ein System zur Energieversorgung vorhanden ist, das entweder über induktive, im Boden verlegte, Leitungen, oder über stationär anfahrbare Energieversorgungs - Stationen versorgt wird,
  4. d) einer elektronischen Vernetzung mit einer Steuerzentrale zur Steuerung eines Transportfotgangs.
• Anspruch 2:
  • Vorrichtung nach Anspruch 1,dadurch gekennzeichnet.
  • dass die beiden am Transport beteiligten Transportfahrzeuge steuerungstechnisch als eine Einheit betrachtet werden.
• Anspruch 3;
  • Vorrichtung nach Anspruch dadurch gekennzeichnet.
  • dass anstelle eines Bettes ein Transportstuhl transportiert wir, wobei dieser für Personen in Rehabilitations - Einrichtungen mit, für den jeweiligen Versorgungsfall geeigneten, speziellen Zusatzvorrichtungen versehen sein kann.
• Anspruch 4;
  • Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet,
  • dass eine Kamera (17) und /oder ein Touchscreen zum kommunikativen Kontakt des Patienten mit dem Pflegepersonal vorgesehen ist.
• Anspruch 5:
  • Vorrichtung nach einem der vorhergehenden Ansprüche,
  • dadurch gekennzeichnet,
  • dass im Bereich eines Patienten Vorrichtungen zur Messung des Pulses und des Hautwiderstandes (19) und ein Notsignal - Sender mit einem entsprechenden Taster (20) vorgehsehen sind.
• , bzw. das Verfahren nach Anspruch 6
  Verfahren zum vernetzten Befördern von Patienten oder bewegungsbehinderten Personen in einem Krankenbett, bzw. Pflegebett mit den folgenden Verfahrensmerkmalen:
  1. a) ein betreffender Patient oder eine entsprechende Pflegeperson wird von einer Steuerzentrale zum Transport von einer Krankenstation A an eine andere Krankenstation B als bedürftig gemeldet,
  2. b) das Pflegepersonal der Station A bettet oder setzt die betreffende Person in ein besonderes Transportbett oder einen besonderen Transportstuhl und meldet der Steuerzentrale, wenn diese Person richtig gelagert ist, was mittels eines Drucksensors (23) in der Liegefläche oder Sitzfläche kontrolliert werden kann, wobei die Identität vom Pflegepersonal gewährleistet wird oder mittels einer Patienten - Identitätskarte kontrolliert werden kann.
  3. c) der Patient wird automatisch zu der Station B gefahren,
  4. d) der Patient wird in der Station B seiner Behandlung zugeführt und dann auf demselben Weg zur Station A zurückbefördert.
• Anspruch 7:
  • Verfahren nach Anspruch 6.dadurch gekennzeichnet,
  • dass eine Kamera (17) und /oder ein Touchscreen zum kommunikativen Kontakt des Patienten mit dem Pflegepersonal vorgesehen sind.
• Anspruch 8:
  • Verfahren nach Anspruch 6 .dadurch gekennzeichnet,
  • dass im Bereich eines Patienten Vorrichtungen zur Messung des Pulses und des Hautwiderstandes (19) und ein Notsignal - Sender mit einem entsprechenden Taster (20) vorgehsehen sind.
• Anspruch 9:
  Computerprogramm mit einem Programmcode zur Durchführung der Verfahrensschritte nach einem der Ansprüche 6 bis 8, wenn das Programm in einem Computer ausgeführt wird.
• Anspruch 10.
  Maschinenlesbarer Träger mit dem Programmcode eines Computerprogramms zur Durchführung des Verfahrens nach einem der Ansprüche 6 bis 8, wenn das Programm in einem Computer ausgeführt wird.

gelöst.The present invention is based on the object of specifying a device and a method with which nursing chairs and hospital beds can be transported automatically without the aid of human movement, whereby the respective transport process can be electronically controlled and monitored and safety arrangements and measures ensure the well-being of the transported person .

• This object is achieved by the device according to claim 1
  Device for the networked transport of patients or mobility-impaired people in a hospital bed or care bed with the following features:
  1. a) a first (29) and a second (30), constructed in the same way, transport vehicle each with a chassis (1) and with a bridge track (3) on a liftable and lowerable bridge platform (11), wherein on the bridge track (3 ) a rotatable carriage (5) with a drive (4) for fixing a docking cross member (6) is provided,
  2. b) a hospital bed with a carriage (27) with a cross member (28) and a docking point for the docking crossbeam (6) of the first transport vehicle (29) and a docking point for a long stop (15) of the docking crossbeam (6) of the second transport vehicle ( 30),
  3. c) an adjusting element (31) driven by a drive 32 for actuating the front lifting rods (53) and rear lifting rods (36), with an intermediate lever arrangement (36,47,49,51) achieving that the center of gravity the applied load is directly in the area of the drive wheels (12) and a system for energy supply is present, which is either via Inductive lines laid in the ground or via stationary accessible energy supply stations are supplied,
  4. d) electronic networking with a control center for controlling a transport cage.
• Claim 2:
  • Device according to Claim 1, characterized.
  • that the two transport vehicles involved in the transport are viewed as one unit in terms of control technology.
• Claim 3;
  • Device according to claim characterized.
  • that instead of a bed we transport a transport chair, whereby this can be provided with special additional devices suitable for the respective supply case for people in rehabilitation facilities.
• Claim 4;
  • Device according to one of the preceding claims, characterized in that
  • that a camera (17) and / or a touchscreen is provided for communicative contact between the patient and the nursing staff.
• Claim 5:
  • Device according to one of the preceding claims,
  • characterized,
  • that in the area of a patient devices for measuring the pulse and skin resistance (19) and an emergency signal transmitter with a corresponding button (20) are provided.
• , or the method according to claim 6
  Process for the networked transport of patients or mobility-impaired people in a hospital bed or nursing bed with the following process features:
  1. a) a patient or a corresponding nurse is reported as needy by a control center for transport from one hospital ward A to another hospital ward B,
  2. b) the nursing staff of station A beds or puts the person in question in a special transport bed or a special transport chair and reports to the control center when this person is correctly positioned, which can be checked by means of a pressure sensor (23) in the lying surface or seat surface, whereby the identity is guaranteed by the nursing staff or can be checked using a patient identity card.
  3. c) the patient is automatically driven to station B,
  4. d) the patient is treated in station B and then transported back to station A by the same route.
• Claim 7:
  • Method according to claim 6, characterized in that
  • that a camera (17) and / or a touchscreen are provided for communicative contact between the patient and the nursing staff.
• Claim 8:
  • Method according to claim 6. Characterized in that,
  • that in the area of a patient devices for measuring the pulse and skin resistance (19) and an emergency signal transmitter with a corresponding button (20) are provided.
• Claim 9:
  Computer program with a program code for performing the method steps according to one of Claims 6 to 8, when the program is executed in a computer.
• Claim 10.
  Machine-readable carrier with the program code of a computer program for carrying out the method according to one of Claims 6 to 8, when the program is carried out in a computer.

solved.

• Fig.1 : zwei Schnittdarstellungen des erfindungsgemäßen Transportfahrzeugs
• Fig.2 eine Darstellung des Transportfahrzeugs in Verbindung mit einem Transportstuhl
• Fig.3 : die Verwendung zweier Transportfahrzeuge bei einem Pflegebett
• Fig.4 : eine räumliche Detailansicht der Kinematik eines Transportfahrzeugs

The device according to the invention is described in more detail below. They show in detail:

• Fig. 1 : two sectional views of the transport vehicle according to the invention
• Fig. 2 a representation of the transport vehicle in connection with a transport chair
• Fig. 3 : the use of two transport vehicles with one care bed
• Fig. 4 : a spatial detailed view of the kinematics of a transport vehicle

the Fig. 1 : shows the transport vehicle according to the invention in two sectional views.
With 1 is here in the Fig.1a) denotes the chassis or the base body for the conveying device according to the invention and is shown as seen from the top. The reference number 2, denoted on the front, relates to a laser scanner of the type that it is approved for personal protection because of special quality features. The same component is on the back. A double-lane bridge track 3 running in the middle of the chassis 1 in the longitudinal direction over almost the entire length of the chassis 1 carries a carriage 5 which can be moved over the entire length of the bridge track 3 by means of a drive 4. A docking traverse 6 is attached to the carriage 5 and is rotatably mounted on the carriage 5 by means of a rotating device 16. The drive for this is designated by 10. The docking cross member 6 is in the Fig. 1a) drawn perpendicular to the direction of travel. 7 on the chassis 1 denotes a data transmitter and a data receiver which are responsible for controlling the entire device and its security system.
Of the four joint support rollers 8 are in the Fig.1a) marked two pieces. Furthermore, the chassis 1 has some safety sensors and additional sensors 9 for vehicle monitoring, which also serve to minimize shadows when obstacles are scanned.
The top of the chassis has a lifting platform 11 for the vertical movement of the bridge track 3. With such a vertical movement of the bridge track 3, all devices connected to the docking traverse 6 are also moved vertically.
In the Fig. 1b) the chassis 1 can be seen in side view, the lifting platform 11 being identified with its potential lifting movements. A short stop 13 and a long stop 15 of the docking traverse 6 are also shown here, with a latching trough in the middle between these two stops 15 is designated for the connection with a person - transport chair. In addition to the known articulated support rollers 8 and the additional sensors 9, reference is made here to one of the drive wheels 12 of the autonomous transport vehicle.

the Fig. 2 shows a representation of the transport vehicle in connection with a transport chair
In addition to a side view of the chassis 1 with a laser scanner 2 and an additional sensor 9, the docking traverse 6 with a cross member 25 of a person transport chair 21 can be seen on the lifting platform 11, the cross member 25 in a non-visible latching transport trough 14 lies. The passenger transport chair 21 has safety sensors 22 at the level of the cross member 25, but these are only designated here on the left side.
To detect the occupancy of the seat surface of the personal transport chair 21, it has a few pressure sensors 23, only sensor being designated. Furthermore, in the area of the seat area of the personal transport chair 21, a data transmitter and a data receiver are denoted by the number 24, which are responsible for controlling the entire device of the chair and its safety system.
To monitor the emotional state of a person to be transported or a patient 26, a camera 17 attached to a rigid camera adjustment device 18 is used for face monitoring. Instead of a camera, a touchscreen can also be installed here, which transmits information to a patient, for example about waiting times or expected treatments. Games or messages can also be transmitted in this way.
In the area of a hand of a patient 26, pulse meters 19 and sensors for detecting the skin resistance are attached. Transmitters 20 with a button for transmitting an emergency signal and an emergency stop circuit are also provided here. As a special design, a transport chair can be transported instead of a bed, whereby this can be provided with special additional devices suitable for the respective supply case for people in rehabilitation facilities. These can be, for example, joint supports or special measuring devices for tachycardias.

Fig. 3 : shows the use of two transport vehicles with a care bed or hospital bed.

Again Fig. 3 As can be seen, a first or front transport vehicle 29 and a second or rear transport vehicle 30 are connected by means of a care bed mount 27 for transporting a care bed. Here, the first transport vehicle has a cross member 28 on which acts as a docking cross member 6, as described in the description for Fig. 1 and was shown on the second transport vehicle. The two laser scanners 2 are designated for the interconnection of the first and the second transport vehicle. In the example of the second transport vehicle, the long stop 15 of the docking traverse 6 was used. At least one pressure sensor 23 is used to detect the occupancy of the care bed, as is also mentioned in the description of the personal transport chair 21. Furthermore, a heart rate monitor 19 and sensors for detecting the skin resistance and a transmitter 20 with a button for sending an emergency signal and an emergency off circuit are provided for the patient 26 to be transported on the care bed. Next are in the Fig. 3 also designates safety sensors 22 on the front side, which ensure that the scan shadow is minimized.
A transmitter and receiver unit for the control unit and the safety system of the care bed is attached to the foot end of the care bed. A camera 17 for the face monitoring ensures the transmission of the patient's feelings.

Fig. 4 : shows a spatial detailed view of the kinematics of a transport vehicle. This figure shows a transport vehicle without the surrounding chassis 1. Connections to the chassis 1 are indicated at the appropriate point. First, the kinematics of the drive wheels are explained. The left-hand drive wheel 12 known from FIG. 1 and an axis of rotation 43 can be seen in the foreground, this axis of rotation 43 being connected to the chassis 1 and not being designated there.
The axle bearing 46 for the left-hand drive wheel 12 with its servomotor 45 located above it is connected to form a functional unit by means of an angle plate, which is not designated in more detail and can only be seen from the rear. A toothed belt, via which the servomotor 45 drives the axis of rotation of the drive wheel 12 on the left, runs in this angle plate. The corresponding servomotor 57 for the right-hand drive can be seen on the opposite side. The corresponding angle plate can be seen from the rear on this side. Here is the in This angle plate running corresponding toothed belt 55 can be seen. The entire functional unit consists of the drive wheel 12 with the axle bearing 46, the servo motor 45 and the angle plate with its toothed belt and can be pivoted via the angle lever 42 over the axis of rotation 43. The angle lever 42 is fastened via the joint 40 to a U-shaped wishbone 34, at the other end of which the corresponding drive wheel is correspondingly fastened. A spring element 41 is also mounted on the joint 40, the other mounting point of which is attached to the housing. On the in the Fig. 4 This articulation point, or bearing point, is shown as a block-shaped, barely recognizable bearing on the left-hand side of the transport vehicle. In contrast, on the opposite side, this point is referred to as the articulation point 56 of the right spring element. The spring element 41 serves the purpose of pressing the drive wheel 12 onto the ground surface via the angle lever 42 and thus improving the ground contact of the drive wheel 12. The same applies to the opposite right drive wheel.

A further kinematic device is explained below for lifting the bridge platform 11, or the person transport chair that weighs on it, or a part of a patient's bed as a load.
In order to be able to pick up a load, it is necessary that the transport vehicle lifts the respective load after driving underneath it and releases its contact with the ground in order to be able to transport it.
The front lifting rods 53 and the rear lifting rods 36 serve this purpose in direct contact.
The lifting rods 53 and 36 are raised and lowered by means of an adjusting element 31, which applies the necessary forces by means of a threaded spindle via an extendable and retractable cylinder via a joint head 52 and an articulated rotary lifting lever 51.
From the Fig. 4 . can clearly be seen on the left-hand side how the lifting and rotating lever 51, in cooperation with the respective front lifting rod lever 49, effects the necessary changes in the position of the two front lifting rods 53 by means of corresponding rotary movements about an axis of rotation 48.
The front lifting rods 53 each carry the corresponding front carrier plate suspension 54.

At the same time, this area is the Fig. 4 it can be seen that a push rod 47 is articulated on the lifting and rotating lever 51, which transfers the movements of the lifting and rotating lever 51 via an axle lever 38 to a respective rear push rod lever 39. The movements of the rear push rod levers 39 lead to the necessary changes in the position of the two rear lifting rods 36.
The rear lifting rods 36 each carry the corresponding rear carrier plate suspension 35.
The actuating element 31 is moved via a drive 32 and a force transmission 33 which diverts the force. The force transmission 33 is fastened to the wishbone 34 by means of a fork head 44. Since the fork head 44 is rotatably mounted on the wishbone 34, the wishbone 34 can move as a connecting element between the two angle levers 42, and this enables the two drive wheels to perform vertical pivoting movements that are independent of one another.
The adjusting elements 50 for the front lifting rods 53 and the adjusting elements 37 for the rear lifting rods 36 are in the Fig. 4 marked as blackened areas of the corresponding lifting rods.

Overall, the above arrangement of the lifting rods 36 and 53, the intermediate lever arrangement 38,47,49, 51 and the actuating element 31 in cooperation with the wishbone 34, as well as its action on the angle lever 42 ensures that the center of gravity of the load is directly in the Area of the drive wheels.
The support wheels 8 therefore essentially have a stabilizing function. There is an energy supply system that is supplied either via inductive lines laid in the ground or via stationary accessible energy supply stations for charging batteries.
The hospital beds according to the invention are either stored in special storage rooms with their transport vehicles or they are stored on special storage racks which, with regard to the height of their base, enable them to be driven underneath and lifted by means of the transport vehicles.
The control of the hospital beds or passenger transport chairs equipped with the respective transport vehicles takes place via a control center that is available in the respective hospital or care center and in all of them enables two-way radio contact with all vehicles on a special radio frequency in corridors and elevators.
A hospital bed is controlled by means of a special control that considers the two vehicles involved in the transport process as one unit. If the control center concerned decides that a patient is to be transported from a station A to a station B, the vehicle automatically drives the prescribed route with the patient in the relevant bed. The respective nursing staff then decides whether the patient is transportable and reports the completed transport status to the control center. Depending on the expansion status of the entire transport system, the transport takes place either directly from the hospital room or from a special contact point of the respective hospital ward.

List of reference symbols

1

chassis

2

Laser scanner

3

Bridge track for the carriage 5

4th

Drive for the carriage 5

5

Carriage (on the bridge runway) with rotating device 16 for a docking traverse 6

6th

Docking cross member for passenger transport chair or care bed

7th

Data receiver for the control and a safety system

8th

Articulated support roller

9

Safety sensors and additional sensors for driving area monitoring

10

Drive for rotating device of the docking traverse 6 (see carriage 5)

11

Bridge platform for vertical movement of the bridge track 3

12th

Driving wheels of an autonomous transport vehicle

13th

short stop of the docking traverse 6

14th

Snap-in transport trough for transporting a transport chair

15th

Long stop of the docking traverse 6

16

Rotating device for the docking traverse 6

17th

Face surveillance camera, touch screen

18th

Rigid adjustment device for the camera 17 with a chair attachment

19th

Heart rate monitors and sensors for recording skin resistance

20th

Transmitter with a button for sending an emergency signal and an emergency stop switch

21

Passenger transport chair

22nd

Safety sensors, scan shadows - minimization

23

Pressure sensors in the seat

24

Transmitter and receiver unit for the control unit and the safety system of the passenger transport chair 21

25th

Cross member of the passenger transport chair 21 and docking point for the transport trough 14

26th

Patient or person being transported

27

Carriage for a care bed or hospital bed

28

Cross members of the carriage 27 of a care bed and docking point for a docking cross member 6

29

front or first transport vehicle

30th

rear or second transport vehicle

31

Control element, threaded spindle

32

Drive for the adjusting element 31

33

Power transmission from drive 32 to actuating element 31

34

Wishbones

35

rear lifting rod

36

rear lifting rod

37

Control element for a rear lifting rod

38

Axle lever

39

rear lift rod lever

40

Joint for an angle lever 40

41

Spring element

42

Angle lever

43

Axis of rotation

44

Clevis

45

Servo motor for left-hand drive wheel

46

Axle bearing for the left-hand drive wheel

47

Push rod

48

Rotation axis for a front lift rod lever

49

front lift rod lever

50

Control element for a front lifting rod

51

Lifting rotary lever

52

Swivel head

53

front lifting rod

54

front support plates - suspension

55

Toothed belt for the right-hand drive

56

Articulation point of the right spring element on the housing 3

57

Servo motor for the right-hand drive

Claims (5)

System for the networked transport of patients or persons with reduced mobility in a transport chair (21) with the following features: a) a transport vehicle with: a chassis (1), drive wheels (12) and a bridge track (3) on a liftable and lowerable bridge platform (11), a rotatable carriage (5) with a drive (4) for fixing a docking traverse (6) is provided on the bridge track (3), wherein an adjusting element (31) driven by a further drive (32) is provided for actuating front lifting rods (53) and rear lifting rods (36), and An intermediate lever arrangement (36, 47, 49, 51) is provided for lifting the bridge platform (11), by means of which it is achieved that the load lying there is directly in the area of the drive wheels (12), b) an energy supply system that is supplied either via inductive lines laid in the ground or via stationary accessible energy supply stations, c) a transport chair (21) with a cross member (25) and a docking point for the docking cross member (6) of the transport vehicle, and d) a control center for controlling a transport progress. System according to claim 1,
characterized in that the transport chair (21) can be provided with special additional devices suitable for the respective supply case, and in particular can transport patients or persons (26) to rehabilitation facilities. System according to one of the preceding claims, characterized in that a camera (17) and / or a touchscreen is provided for communicative contact between the patient or the person (26) and the nursing staff. System according to one of the preceding claims, characterized in that devices for measuring the pulse and skin resistance (19) and an emergency signal transmitter with a corresponding button (20) are provided in the area of the patient or person (26). Method for the networked transportation of patients or persons with reduced mobility in a transport chair with a system according to one of Claims 1 to 4 with the following method features: a) a relevant patient or a corresponding person (26) is reported as needy by a control center for transport from one hospital ward A to another hospital ward B, b) the nursing staff of station A places the patient or the person in the transport chair (21) and reports to the control center when the patient or the person (26) is correctly positioned, the identity of the nursing staff being guaranteed or by means of a patient Identity card can be checked, c) the patient or person (26) is automatically driven to station B, d) the patient or person (26) is treated in station B and then transported back to station A by the same route.

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