CN107242940B - Patient transport cart and patient's conveyer method - Google Patents

Abstract

The invention provides a patient transfer vehicle and a patient transfer method, wherein the patient transfer vehicle includes: a vehicle frame, a telescopic bed frame, a bed surface, an actuator, a control mechanism and a power supply module, and the bed surface is detachable fixed on the telescopic bed frame, the telescopic bed frame is fixed on the vehicle frame through the actuator, the actuator is used to adjust the inclination of the bed surface, the power module and the The actuator is connected to the control mechanism. The patient transfer vehicle and the patient transfer method of the present invention can provide assistance for the patient transfer bed, and have the advantages of simple structure, time saving, labor saving and convenient operation.

Description

Patient transport vehicle and patient transport method

technical field

The invention relates to the field of medical equipment, in particular to a patient transfer vehicle and a patient transfer method.

Background technique

When performing rescue work such as treatment, first aid and rescue in a hospital, it is often necessary to transfer patients between different beds or operating tables. At present, the transfer is generally completed by manually lifting or dragging the patient during transfer, which not only consumes energy, but also easily causes injury to the patient.

Contents of the invention

Aiming at the deficiencies in the above-mentioned prior art, the present invention provides a patient transfer vehicle and a patient transfer method, which can provide assistance for patient transfer beds, and have the advantages of simple structure, time-saving, labor-saving and convenient operation.

In order to achieve the above object, the present invention provides a patient transfer vehicle, which includes a vehicle frame, a telescopic bed frame, a bed surface, an actuator, a control mechanism and a power supply module, and the bed surface is detachably fixed to the On the telescopic bed frame, the telescopic bed frame is fixed on the vehicle frame through the actuator, the actuator is used to adjust the inclination of the bed surface, the power module is connected to the actuator the control mechanism.

Preferably, the actuator includes a plurality of electric telescopic rods and at least one sensor module, the electric telescopic rods are distributed on both sides of the bottom surface of the telescopic bed frame, and the first end of the electric telescopic rods is connected to the The bottom surface of the telescopic bed frame is pivotally connected, the axial direction of the shaft is parallel to the length direction of the telescopic bed frame, and the second end of the electric telescopic rod is fixed on the vehicle frame; the sensor module is used to sense the telescopic The angle state between the bed frame and the horizontal plane; the electric telescopic rod and the sensor module are respectively connected with the control mechanism by communication.

Preferably, the sensor module includes at least one travel switch and at least one limit switch, and the travel switch and the limit switch are connected to the electric telescopic rod and to the control mechanism.

Preferably, the telescopic bed frame includes two fixed outer tubes and two telescopic inner tubes, the fixed outer tubes are parallel to each other, and the two ends of the telescopic inner tubes are reciprocally inserted along the axial direction of the fixed outer tubes respectively. Fixed on the same side of the two fixed outer tubes; the first end of the electric telescopic rod is pivotally connected to the bottom surface of the fixed outer tube through a rotating shaft, and the axial direction of the rotating shaft is parallel to the length direction of the fixed outer tube.

Preferably, the control mechanism includes a control switch group, a main control unit and a drive circuit connected in sequence, the main control unit is connected to the actuator, the control switch group and the power supply through the drive circuit The module is connected to the main control unit, and the control switch group includes a horizontal adjustment switch and at least one inclination angle adjustment switch, and the horizontal adjustment switch and the inclination angle adjustment switch are respectively connected to the main control unit.

Preferably, the main control unit adopts a single-chip microcomputer.

Preferably, the drive circuit includes a plurality of telescopic rod drive modules, and the telescopic rod drive modules are respectively connected to the corresponding electric telescopic rods.

Preferably, the vehicle frame includes a frame body and a plurality of universal wheels fixed at the bottom of the frame body.

A patient transfer method based on the patient transfer vehicle of the present invention comprises the steps of:

S1: adjusting the telescopic bed frame to a horizontal position through the control mechanism and the actuator;

S2: continue to follow-up steps after the tilt angle adjustment switch is triggered;

S3: The main control unit controls the extension length of each electric telescopic rod according to a preset adjustment scheme, and adjusts the telescopic bed frame to a preset inclination angle;

S4: moving the patient on the bed to a transferred bed along the inclined bed;

S5: Restoring the telescopic bed frame to the horizontal position.

Preferably, the S1 step further comprises the steps of:

Trigger the level adjustment switch; the main control unit cooperates with the travel switch to adjust the extension length of each of the electric telescopic rods, so that the telescopic bed frame is located at the horizontal position;

The step S5 further includes the steps of: triggering the level adjustment switch; the main control unit controlling and cooperating with the travel switch to adjust the extension length of each of the electric telescopic rods, so that the telescopic bed frame is located at the horizontal position.

The present invention has the following beneficial effects due to the adoption of the above technical scheme:

The cooperation of the executive mechanism and the control mechanism realizes the automatic adjustment of the inclination of the telescopic bed frame, so that the patient's own gravity can be used to transfer the patient, thus greatly reducing the cost of the medical staff when transferring the patient. Physical strength, and not easy to cause harm to the patient itself. The electric telescopic rod is used as the power source of the actuator. The travel switch is used to detect the initial position, and the limit switch is used to limit the electric telescopic rod. The telescopic bed frame adopts a casing structure, so that the length of the telescopic bed frame can be adjusted, which can meet the needs of more size beds and is easy to store, saving storage space.

Description of drawings

Fig. 1 is a schematic diagram of the mechanism of the first state of the patient transfer vehicle according to the embodiment of the present invention;

2 is a schematic diagram of the mechanism of the second state of the patient transfer vehicle according to the embodiment of the present invention;

Fig. 3 is a schematic diagram of the internal structure of the patient transfer vehicle according to the embodiment of the present invention;

Fig. 4～Fig. 9 is the circuit diagram of the control mechanism of the embodiment of the present invention;

Fig. 10 is a flow chart of a patient transfer method according to an embodiment of the present invention.

Detailed ways

Below, according to the accompanying drawings 1 to 10, a preferred embodiment of the present invention is given and described in detail, so that the functions and characteristics of the present invention can be better understood.

Please refer to Figures 1 to 9, a patient transfer vehicle implemented in the present invention includes a vehicle frame 1, a telescopic bed frame 2, a bed surface 3, an actuator 4, a control mechanism 5 and a power module 6, The bed surface 3 is detachably fixed on the telescopic bed frame 2, the telescopic bed frame 2 is fixed on the vehicle frame 1 through the actuator 4, the actuator 4 is used to adjust the inclination of the bed surface 3, and the power module 6 is connected to the actuator 4 control mechanism5. In this embodiment, the power supply module 6 uses a 24V storage battery to supply power to the actuator 4 and the control mechanism 5 at the same time. The vehicle frame 1 includes a frame body 11 and a plurality of universal wheels 12 fixed on the bottom of the frame body 11 .

The cooperation of the actuator 4 and the control mechanism 5 realizes the automatic adjustment of the inclination of the telescopic bed frame 2, so that the patient's own gravity can be used to transfer the patient, thereby greatly reducing the time and effort required by the medical staff when transferring the patient. It takes a lot of physical strength, and it is not easy to cause harm to the patient himself.

The actuator 4 includes a plurality of electric telescopic rods 41 and at least one sensor module 42. The electric telescopic rods 41 are distributed on both sides of the bottom surface of the telescopic bed frame 2, and the first end of the electric telescopic rods 41 is connected to the bottom surface of the telescopic bed frame 2 through a rotating shaft 43. Pivot connection, the axial direction of the rotating shaft 43 is parallel to the length direction of the telescopic bed frame 2, the second end of the electric telescopic rod 41 is fixed on the vehicle frame 1; the sensor module 42 is used to sense the angle between the telescopic bed frame 2 and the horizontal plane; The rod 41 and the sensor module 42 are respectively connected in communication with the control mechanism 5 . In this embodiment, the electric telescopic rod 41 has a working voltage of 24V and a stroke of 1500mm, which serves as the power source of the actuator 4 .

Wherein, the sensor module 42 includes at least one travel switch 421 and at least one limit switch 422 , the travel switch 421 and the limit switch 422 are connected to the electric telescopic rod 41 and to the control mechanism 5 . The travel switch 421 is used to detect the initial position, and the limit switch 422 is used to limit the position of the electric telescopic rod 41 .

The telescopic bed frame 2 includes two fixed outer tubes 21 and two telescopic inner tubes 22. The fixed outer tubes 21 are parallel to each other. The same-side end of the pipe 21; the first end of the electric telescopic rod 41 is pivotally connected to the bottom surface of the fixed outer pipe 21 through the rotating shaft 43, and the axial direction of the rotating shaft 43 is parallel to the length direction of the fixed outer pipe 21.

The telescopic bed frame 2 adopts a casing structure with a fixed outer tube 21 and a telescopic inner tube 22, so that the length of the telescopic bed frame 2 can be adjusted, which can meet the needs of more size bed surfaces 3 and is easy to store, saving storage space. In this embodiment, the fixed outer tube 21 and the telescopic inner tube 22 are made of 304 stainless steel, and in other embodiments, other materials can also be used as required.

The control mechanism 5 includes a control switch group 51, a main control unit 52 and a drive circuit 53 connected in sequence, the main control unit 52 is connected to the actuator 4 through the drive circuit 53, and the control switch group 51 and the power module 6 are connected to the main control unit 52 The control switch group 51 includes a horizontal adjustment switch and at least one tilt angle adjustment switch (not shown in the figure), and the horizontal adjustment switch and the tilt angle adjustment switch are respectively connected to the main control unit 52 .

The main control unit 52 adopts a single-chip microcomputer. In the present embodiment, STM32F103 is adopted, and its ARM32 is a Cortex-M3 with a maximum operating frequency of 72MHz, which can reach 1.25DMips/MHZ when the 0 waiting period of the storage is accessed, and 51 I/O ports , all I/Os are reflected to 16 external interrupts; almost all ports can tolerate 5V signals.

The drive circuit 53 includes four telescopic rod drive modules (not shown in the figure), and the telescopic rod drive modules are respectively connected to the corresponding electric telescopic rods 41 . In this embodiment, the telescopic rod drive module adopts the HG7881 four-channel DC motor drive module.

Please refer to Fig. 1 to Fig. 3 and Fig. 10, a patient transfer method based on the patient transfer vehicle of the present invention, including steps:

S1: adjust the telescopic bed frame 2 to a horizontal position through the control mechanism 5 and the actuator 4;

Specifically, the level adjustment switch is triggered; the main control unit 52 controls and cooperates with the travel switch 421 to adjust the extension length of each electric telescopic rod 41, so that the telescopic bed frame 2 is in a horizontal position.

S2: Continue to follow-up steps after the inclination angle adjustment switch is triggered.

S3: The main control unit 52 controls the extension length of each electric telescopic rod 41 according to a preset adjustment scheme, and adjusts the telescopic bed frame 2 to a preset inclination angle.

S4: Move the patient on the bed surface 3 to a transferred bed along the inclined bed surface 3 .

S5: Trigger the level adjustment switch; the main control unit 52 controls and cooperates with the travel switch 421 to adjust the extension length of each electric telescopic rod 41, so that the telescopic bed frame 2 is in a horizontal position.

The present invention has been described in detail above with reference to the embodiments of the accompanying drawings, and those skilled in the art can make various changes to the present invention according to the above description. Therefore, some details in the embodiments should not be construed as limiting the present invention, and the present invention will take the scope defined by the appended claims as the protection scope of the present invention.

Claims (6)

1. a kind of patient transport cart, which is characterized in that including a vehicle frame, a flexible bedstead, a bed surface, an executing agency, a control Mechanism processed and a power module, the bed surface are detachably secured on the flexible bedstead, and the flexible bedstead passes through described Executing agency is fixed on the vehicle frame, and the executing agency is used to adjust the gradient of the bed surface, the power module and The executing agency connects the control mechanism；

The executing agency includes multiple electric telescopic rods and an at least sensor module, and the electric telescopic rod is distributed in described The two sides of flexible bedstead bottom surface, and the first end of the electric telescopic rod is pivotally connected by shaft and the flexible bedstead bottom surface, institute It is axial parallel with the length direction of the flexible bedstead to state shaft, the second end of the electric telescopic rod is fixed on the vehicle frame； The sensor module is used to incude the angle state of the flexible bedstead and horizontal plane；The electric telescopic rod and the sensing Device module is communicated to connect with the control mechanism respectively；

The sensor module includes that at least one stroke switch and an at least limit switch, the travel switch and the limit are opened Connection connects the electric telescopic rod and connects the control mechanism；

The flexible bedstead includes that two fixed outer tubes and two telescoping inners, the fixed outer tube are parallel to each other, the telescoping inner Both ends the same side for being fixed on the two fixed outer tubes can be plugged along the fixed outer tube axially reciprocating respectively；It is described The first end of electric telescopic rod is pivotally connected by shaft and the fixed outer tube bottom surface, and the shaft is axial with the fixed outer tube Length direction is parallel；

The control mechanism includes sequentially connected control switch group, a main control unit and one drive circuit, the master control list Member connects the executing agency by the driving circuit, and the control switch group connects the master control list with the power module Member, the control switch group include Level tune switch and an at least tilt angle regulating switch, the Level tune switch The main control unit is separately connected with the tilt angle regulating switch.

2. patient transport cart according to claim 1, which is characterized in that the main control unit uses single-chip microcontroller.

3. patient transport cart according to claim 2, which is characterized in that the driving circuit includes multiple telescopic rod drivings Module, the telescopic rod drive module are separately connected the corresponding electric telescopic rod.

4. patient transport cart according to claim 3, which is characterized in that the vehicle frame includes frame body and is fixed on the frame Multiple universal wheels of body bottom.

5. a kind of patient's conveyer method based on patient transport cart as claimed in claim 4, including step：

S1：The flexible bedstead is adjusted to horizontal position by the control mechanism and the executing agency；

S2：Continue subsequent step after the tilt angle regulating switch is triggered；

S3：The main control unit controls the extension elongation of each electric telescopic rod according to a default regulation scheme, stretches described Contracting bedstead is adjusted to a predetermined inclination angle；

S4：Sufferer on the bed surface is moved to one along the inclined bed surface and is transferred bed；

S5：The flexible bedstead is restored to the horizontal position.

6. patient's conveyer method according to claim 5, which is characterized in that the S1 step further comprises step：

Trigger the Level tune switch；The main control unit control cooperates the travel switch to adjust each electric telescopic rod Extension elongation so that the flexible bedstead is located at the horizontal position；

The S5 step further comprises step：Trigger the Level tune switch；The main control unit control cooperates the row The extension elongation of each electric telescopic rod of journey switch-mode regulation, so that the flexible bedstead is located at the horizontal position.