CN211067513U

CN211067513U - Vehicle-mounted weighing stretcher platform system and ambulance adopting same

Info

Publication number: CN211067513U
Application number: CN201921682390.XU
Authority: CN
Inventors: 于强; 刘凌华; 栗志利
Original assignee: Bechoice Beijing Technology Development Co ltd
Current assignee: Bechoice Beijing Technology Development Co ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-07-24
Anticipated expiration: 2029-10-10

Abstract

The utility model provides an on-vehicle stretcher platform system of weighing and adopt ambulance of this system, the system includes stretcher platform, stretcher platform has the platform main part and arranges two at least supporting legss or two tracks between platform main part and the vehicle bottom plate, the system still includes at least one parallel beam type weighing sensor and display controller, weighing sensor arranges every the supporting legs or every the track with in order will between the vehicle bottom plate stretcher platform balanced support is in on the vehicle bottom plate, display controller be designed into with weighing sensor communication connection is in order to receive, handle and show weighing sensor's measuring result. The system can accurately measure the weight of the patient at lower cost.

Description

Vehicle-mounted weighing stretcher platform system and ambulance adopting same

Technical Field

The present invention relates to stretcher platform systems and ambulances, and more particularly to a weighable stretcher platform system and an ambulance employing the same.

Background

For emergency patients, especially for unconscious stroke patients, it is necessary to lift them by means of a stretcher onto a stretcher platform fixedly arranged in an ambulance, and then to diagnose and treat them by a doctor. In the treatment of stroke patients, weight measurement is a necessary and cumbersome procedure, since the physician needs to determine the amount of medication based on the weight of the patient, but the patient generally cannot move himself. There is thus a need for a device for weighing a patient who is not mobile.

In the prior art, the body weight of a patient is generally measured by making improvements to a stretcher, for example, by placing weighing cells under the bed sheets of the stretcher. The design has the disadvantages that firstly, a weighing sensor is required to be arranged for each stretcher, so that the cost is high; in addition, usually, only one weighing sensor is arranged in the middle of the stretcher, and since the patient usually lies on or lies on the stretcher, the weight of the patient should be distributed on the curved surface of the whole stretcher, the weighing sensor can only sense the force in a local range, and the measured value is usually smaller than the actual weight of the patient.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above disadvantages, the present invention provides a stretcher platform that can be weighed, which supports the stretcher platform on a vehicle floor by means of at least one weighing sensor, thereby achieving accurate measurement of the weight of a patient placed on the stretcher platform at a low cost.

The utility model provides an on-vehicle stretcher platform system of weighing, the system includes stretcher platform, stretcher platform has the platform main part and arranges two at least supporting legss or two tracks between platform main part and the vehicle bottom plate, the system still includes at least one parallel beam type weighing sensor and display controller, weighing sensor arranges every the supporting legs or every the track with in order to incite somebody to action between the vehicle bottom plate stretcher platform balanced support is in on the vehicle bottom plate, display controller be designed for with weighing sensor communication connection is in order to receive, handle and show weighing sensor's measuring result.

Preferably, the system comprises two support feet extending in the transverse direction of the platform main body and symmetrically arranged about the transverse axis of the platform main body, and the bearing surfaces of the load cells facing the support feet and the support surfaces of the support feet facing the load cells are identical in geometric shape and size.

Preferably, the two rails of the stretcher platform are a first rail and a second rail extending in the longitudinal direction of the platform body and symmetrically arranged with respect to the longitudinal axis of the platform body, the system comprises four load cells, namely a first load cell, a second load cell, a third load cell and a fourth load cell, wherein the first load cell and the second load cell are provided between the first rail and the vehicle floor, and the third load cell and the fourth load cell are provided between the second rail and the vehicle floor.

Preferably, the first load cell and the second load cell are symmetrical about a lateral axis of the platform body, the third load cell and the fourth load cell are symmetrical about the lateral axis of the platform body, and the first load cell and the third load cell are equidistant from the lateral axis of the platform body.

Preferably, when the length of the platform body is 2 meters, the distance between the first load cell and the third load cell and the transverse axis of the platform body is 0.8 meters.

Preferably, the load cell is communicatively connected to the display controller by means of a signal line.

Preferably, the system further comprises a remote transmission module, a router and a cloud server, the display controller transmits the processed data to the remote transmission module, and the remote transmission module transmits the data received from the display controller to the cloud server via the router.

Preferably, the parallel beam type load cell employs a full bridge type equal arm bridge.

The utility model also provides an ambulance, it includes driver's cabin and medical cabin install above-mentioned on-vehicle stretcher platform system of weighing on the vehicle bottom plate in medical cabin.

Drawings

Fig. 1 shows a schematic side view of a first embodiment of a vehicle-mounted weighing stretcher platform system according to the present invention;

fig. 2 shows a schematic top view of a second embodiment of the on-board weighing stretcher platform system according to the present invention;

fig. 3 shows a schematic side view of a second embodiment of a vehicle-mounted weighing stretcher platform system according to the present invention;

figure 4 shows a schematic view of an ambulance according to the present invention.

List of reference numerals

1. A platform body; 2. a weighing sensor; 21. a first weighing sensor; 22. a second load cell; 23. a third weighing sensor; 24. a fourth load cell; 3. a base plate; 4. supporting legs; 5. a track; 51. a first track; 52. a second track; 6. a stretcher; 7. a signal line; 8. an ambulance; 81. a cab; 82. a medical treatment cabin.

Detailed Description

Referring now to the drawings, illustrative aspects of the disclosed vehicle-mounted weighing stretcher platform system are described in detail. Although the drawings are provided to present some embodiments of the invention, the drawings are not necessarily to scale of particular embodiments, and certain features may be exaggerated, removed, or partially sectioned to better illustrate and explain the disclosure of the present invention. The position of some components in the drawings can be adjusted according to actual requirements on the premise of not influencing the technical effect.

Certain directional terms used hereinafter to describe the accompanying drawings will be understood to have their normal meanings and to refer to those directions as they normally relate to when viewing the drawings. Unless otherwise indicated, the directional terms described herein are generally in accordance with conventional directions as understood by those skilled in the art. Wherein "longitudinal" refers to the length direction of the platform body and "transverse" refers to the width direction of the platform body.

The stretcher platforms commonly used in the market at present mainly comprise supporting leg type stretcher platforms and rail type stretcher platforms. The support foot stretcher platform mainly comprises a platform main body for bearing a patient and at least two support feet, wherein the platform main body is supported on a bottom plate of a vehicle in a balanced manner by the at least two support feet. Typically, a legged litter platform comprises two supporting legs extending in a transverse direction of the platform body and arranged symmetrically about a transverse axis of the platform body, as shown for example in fig. 1. The rail-mounted stretcher platform essentially comprises a platform body for carrying a patient and two rails that support the platform body in a balanced manner on the floor of the vehicle, along which the platform body can slide as required, for example into a movable CT machine provided in an ambulance. Typically, the two rails comprised by the rail-mounted litter platform extend in the longitudinal direction of the platform body and are symmetrically arranged with respect to the longitudinal axis of the platform body, as shown for example in fig. 2 and 3.

Fig. 1 shows a schematic side view of a first embodiment of a vehicle-mounted weighing stretcher platform system according to the present invention. An example of a supporting foot stretcher platform is shown with two supporting feet 4. In particular, in order to measure precisely the weight of the patient to be placed on the platform body 1, while being applicable thereto without having to make major modifications to the commercial stretcher platform, two weighing sensors 2 are included, corresponding to the number of supporting feet 4 of the stretcher platform. The weighing cell 2 is arranged correspondingly between each supporting foot 4 and the vehicle floor, whereby the entire stretcher platform is now no longer supported by the supporting feet 4, but instead is supported in a balanced manner by the weighing cell 2. The weight of the entire platform and the patient (and possibly also the stretcher 6) arranged thereon is distributed to the two load cells 2 as shown, the sum of the values sensed by the two load cells 2 being the total weight of the object supported thereby. In the case of more than two support feet 4, the sum of the values sensed by the correspondingly arranged more than two load cells 2 is still the total weight of the object supported thereby.

The system also includes a display controller in communication with the load cell 2, which is operable to receive, process and display measurement data from the load cell 2. The load cell 2 can be connected to the display controller by means of a signal line 7, although a wireless connection is also possible. Whereby one can obtain the measured weight of the patient by directly observing the display controller. It is also preferable that the display controller further transmits the processed data to a remote transmission module in the form of a signal, and the remote transmission module transmits the data to a cloud server through, for example, an in-vehicle router, so as to remotely read the data.

Preferably, in order to increase the measurement accuracy, the geometry and dimensions of the bearing surface of the weighing cell 2 facing the support foot 4 are designed to be identical to the geometry and dimensions of the support surface of the support foot 4 facing the weighing cell 2, which fit closely to one another in a form-fitting manner.

Fig. 2 and 3 show schematic views from different angles of a second embodiment of a vehicle-mounted weighing stretcher platform system according to the invention, wherein a rail-mounted stretcher platform is shown, comprising two rails 5 extending in the longitudinal direction of the platform body 1. Components that are functionally similar or identical to those of the first embodiment have been given the same reference numerals. Similarly, a load cell 2 is arranged between each rail 5 and the vehicle floor 3. As a result, the entire stretcher platform is now no longer supported by the rails 5, but instead is supported in a balanced manner by means of the weighing cells 2. That is to say the weight of the entire stretcher platform and the patient arranged thereon (and possibly also the stretcher 6) is distributed to the load cells 2. The sum of the values sensed by the load cells 2 should be the total weight of the object supported thereby.

Fig. 2 shows a preferred arrangement of the load cell 2, which comprises a first rail 51 and a second rail 52, which are usually arranged symmetrically to the longitudinal axis a of the platform body 1 and extend in the longitudinal direction of the platform body 1. Wherein a first weighing cell 21 and a second weighing cell 22 are arranged between the first rail 51 and the vehicle floor 3, and a third weighing cell 23 and a fourth weighing cell 24 are arranged between the second rail 52 and the vehicle floor 3. The first and second load cells are arranged symmetrically about the transverse axis B of the platform body 1, and likewise the third and fourth load cells are also arranged symmetrically about the transverse axis B of the platform body 1. The first load cell 21 and the third load cell 23 are equidistant from the transverse axis of the platform body 1. That is to say the first load cell 21 and the third load cell 23 are also arranged symmetrically with respect to the longitudinal axis a of the platform body 1. It is also preferred that in the case of a platform body 1 having a length of 2 meters, the four load cells are each located at a distance of 0.8 meters from the transverse axis B of the platform body 1.

In such a case, where the four load cells are arranged symmetrically with respect to both the transverse and longitudinal axes of the platform body 1, the loads transmitted by the guide rails to the four load cells will be relatively close, in which case a high measurement accuracy is obtained, without interfering with the other functions of the stretcher platform. It will be understood by those skilled in the art that the four load cells allow a large difference in measured values due to a change in the arrangement position, but the sum of the values measured by the four load cells accurately expresses the weight of the patient in the case of balanced support by only the four load cells.

The information collected by the load cell in the second embodiment is also transmitted to the display controller, and then transmitted to the cloud server via the remote transmission module and the router, similarly to the first embodiment, for convenient storage or reading.

The advantage of the above-described arrangement of the load cells 2 is that the load cells 2 are not in direct contact with the patient or in indirect contact via a flexible member (e.g. a bed sheet), the stretcher platform (and the stretcher 6 which may be placed thereon) acts as a "rigid tray" carrying the patient, the weight of the patient is first distributed to the stretcher platform which then distributes the load to the load cells 2 provided, and the sum of the weights sensed by all the load cells is able to accurately represent the weight of the patient.

Among them, the load cell employed herein is a parallel beam type load cell. The parallel beam type weighing sensor consists of a resistance strain gauge, an elastic body and a measuring circuit. The elastic body (elastic element, sensitive beam) generates elastic deformation under the action of external force, so that the resistance strain gauge (conversion element) adhered to the surface of the elastic body also generates deformation, after the resistance strain gauge is deformed, the resistance value of the resistance strain gauge changes (increases or decreases), and the resistance change is converted into an electric signal (voltage or current) through a corresponding measuring circuit, thereby completing the process of converting the external force into the electric signal.

The load cell herein may employ a four wire system that taps into a sensor tap behind the display controller to transmit signals to the display controller. As used herein, a display controller may be provided with a display on which a gross weight (i.e., the total mass of the first aid device and patient including the stretcher platform, stretcher and associated stretcher) display module, a net weight (patient weight only) display module, and functional buttons for zeroing, tare clearing, peeling, menu, calibration and re-zeroing may be provided. Wherein the weight sensor senses the total weight of the stretcher platform, the patient and the stretcher (including the emergency equipment along with the stretcher), but the influence of the stretcher platform and the stretcher on the measurement result can be eliminated by means of the 'peeling' function of the display controller (briefly, the weight of the stretcher platform and the stretcher is measured in advance and is input into the program). The functional principles of receiving signals and processing signals of the display controller are the prior art and are not described in detail herein.

In addition, it should be noted that although the first and second embodiments herein show examples using two load cells and four load cells, respectively, it should be understood by those skilled in the art that the number of load cells is not limited herein as long as the weight of the stretcher platform and the object thereon all falls on all of the load cells. This can be achieved in some cases even with only one large-sized load cell.

Fig. 4 shows an ambulance 8 according to the present invention, the ambulance 8 comprising a driving cab 81 and a medical cabin 82. The ambulance 8 comprises the above-mentioned on-board weighing stretcher platform system, wherein the display controller described above can be embedded in the mid-partition of the medical cabin 82 so as to be clearly visible to the medical personnel. Therefore, after the patient is lifted on the stretcher platform by the aid of the stretcher, the onboard doctor can immediately determine the dosage and perform infusion according to the weight value, and more treatment time is won for the patient.

Claims

1. The utility model provides a stretcher platform system of on-vehicle weighing, the system includes stretcher platform, stretcher platform has the platform main part and arranges two at least supporting legs or two tracks between platform main part and the vehicle bottom plate, characterized by, the system still includes at least one parallel beam type weighing sensor and display controller, weighing sensor arranges every the supporting legs or every the track with between the vehicle bottom plate in order to incite somebody to action stretcher platform balanced support is in on the vehicle bottom plate, display controller be designed for with weighing sensor communication connection is in order to receive, handle and show weighing sensor's measuring result.

2. The vehicle weight litter platform system of claim 1 wherein the system comprises two of the support legs extending laterally of the platform body and symmetrically disposed about a lateral axis of the platform body, the load bearing surfaces of the load cells facing the support legs being identical in geometry and size to the support surfaces of the support legs facing the load cells.

3. The on-board weighing stretcher platform system of claim 1 wherein the two rails of the stretcher platform are a first rail and a second rail extending longitudinally of the platform body and symmetrically disposed about the longitudinal axis of the platform body, the system comprising four load cells, a first load cell, a second load cell, a third load cell and a fourth load cell, wherein the first load cell and the second load cell are disposed between the first rail and the vehicle floor and the third load cell and the fourth load cell are disposed between the second rail and the vehicle floor.

4. The on-board weighing stretcher platform system of claim 3 wherein the first and second load cells are symmetric about a transverse axis of the platform body, the third and fourth load cells are symmetric about the transverse axis of the platform body, and the first and third load cells are equidistant from the transverse axis of the platform body.

5. The on-board weighing stretcher platform system of claim 4 wherein the first and third load cells are at a distance of 0.8 meters from the transverse axis of the platform body when the platform body is 2 meters in length.

6. The on-board weighing stretcher platform system of claim 1 wherein the load cell is communicatively connected to the display controller by means of a signal line.

7. The vehicle-mounted weighing stretcher platform system according to claim 1, further comprising a remote transmission module, a router and a cloud server, wherein the display controller transmits the processed data to the remote transmission module, and the remote transmission module transmits the data received from the display controller to the cloud server via the router.

8. The vehicle weighing stretcher platform system according to any one of claims 1-7 wherein the parallel beam-type weighing sensors employ a full bridge type equal arm bridge.

9. An ambulance comprising a cab and a medical cabin, characterized in that on the vehicle floor of said cabin is mounted a vehicle-mounted weighing stretcher platform system according to any one of claims 1 to 8.