阅读说明：本技术 一种5g救护车 (5G ambulance ) 是由 招宇晏 廖俊良 陈慧芬 陈仲仁 麻卫娟 于 2021-08-13 设计创作，主要内容包括：本发明公开了一种5G救护车,涉及救护车领域,包括车体、驾驶舱、医疗舱、生命维持系统和5G远程会诊系统；所述车体包括车头和车身,所述驾驶舱装设于车头,所述医疗舱装设于车身；所述生命维持系统装设在医疗舱内；所述生命维持系统包括呼吸机；所述5G远程会诊系统包括至少一个医疗舱摄像头、5GCPE、车载流媒体服务器、多参数监护仪、车载医生工作站和定位系统；所述多参数监护仪和车载医生工作站均装设在医疗舱内；所述车载流媒体服务器将呼吸机、医疗舱摄像头、定位系统、车载医生工作站和多参数监护仪的数据信息发送到外部的医院信息系统内；本发明利用5G技术传递救护车内部设备的数据信息,从而提高患者的救援成功率。(The invention discloses a 5G ambulance, which relates to the field of ambulances and comprises an ambulance body, a cockpit, a medical cabin, a life support system and a 5G remote consultation system; the medical treatment cabin is arranged on the vehicle body; the life support system is arranged in the medical cabin; the life support system includes a ventilator; the 5G remote consultation system comprises at least one medical cabin camera, a 5GCPE, a vehicle-mounted streaming media server, a multi-parameter monitor, a vehicle-mounted doctor workstation and a positioning system; the multi-parameter monitor and the vehicle-mounted doctor workstation are both arranged in the medical cabin; the vehicle-mounted current media server sends data information of the breathing machine, the medical cabin camera, the positioning system, the vehicle-mounted doctor workstation and the multi-parameter monitor to an external hospital information system; the invention utilizes the 5G technology to transmit the data information of the internal equipment of the ambulance, thereby improving the rescue success rate of the patient.)

1. A5G ambulance, which is characterized in that: the medical treatment vehicle comprises a vehicle body (10), a cockpit (20), a medical treatment cabin (30), a life support system (40) and a 5G remote consultation system (50);

the vehicle body (10) comprises a vehicle head (11) and a vehicle body (12), the cockpit (20) is arranged at the vehicle head (11) of the vehicle body (10), and the medical cabin (30) is arranged at the vehicle body (12) of the vehicle body (10); the life support system (40) is installed inside the medical cabin (30);

the life support system (40) comprises a ventilator (41) housed inside the medical cabin (30);

the 5G remote consultation system (50) comprises at least one medical cabin camera for monitoring the interior of the medical cabin (30), an industrial grade 5G CPE (51), a vehicle-mounted streaming media server (52), a multi-parameter monitor (53), a vehicle-mounted doctor workstation (54) and a positioning system (57); the multi-parameter monitor (53) and the vehicle-mounted doctor workstation (54) are both arranged in the medical cabin (30);

the vehicle-mounted media server (52) collects and caches data information of the breathing machine (41), the medical cabin camera, the positioning system (57), the vehicle-mounted doctor workstation (54) and the multi-parameter monitor (53) respectively and sends the collected data to an external hospital information system through the industrial-grade 5G CPE (central processing element) (51).

2. A 5G ambulance according to claim 1, wherein: the cockpit (20) comprises a plurality of single seats (21), a cockpit camera (22) for monitoring the behavior of a driver and a front camera (23) for monitoring the road condition;

the single seat (21) is installed on the floor of the cockpit (20), the cockpit camera (22) is installed on the top of a copilot of the cockpit (20), and the front camera (23) is installed in the middle of the cockpit (20);

the vehicle-mounted carrier media server (52) respectively collects and caches data information of the cockpit camera (22) and the front camera (23), and sends the collected data to an external hospital information system through the industrial grade 5G CPE (51).

3. A 5G ambulance according to claim 1, wherein: the medical cabin (30) comprises a cabin structure which is formed by enclosing a bottom plate (31), a plurality of side plates (32), a front partition plate (33) and a top plate (34), and the cabin structure is attached to the inner side of the vehicle body (12).

4. A 5G ambulance according to claim 3, wherein: the industrial grade 5G CPE (51), the vehicle-mounted streaming media server (52) and the positioning system (57) are all arranged on the front partition plate (33) and are positioned on one side of the cockpit (20); the multi-parameter monitor (53) and the vehicle-mounted doctor workstation (54) are both arranged in the medical cabin (30).

5. A 5G ambulance according to claim 3, wherein: the medical cabin (30) further comprises a hanging cabinet (35), a hub cabinet (36), an oxygen cylinder cabinet (37), an equipment frame (38), a plurality of single seats (39), a cabinet-type folding chair (310), a fire extinguisher (311), an interphone (312), an ultraviolet disinfection lamp (313), a 220V power socket (314), a low-voltage power socket (315), a top exhaust fan (316), a straight handrail (317) and an in-cabin illuminating lamp (318) which are arranged in the cabin body structure;

the hanging cabinet (35) is arranged on the intersection angle of the side plate (32) and the top plate (34), the hub cabinet (36) is arranged on the intersection angle of the bottom plate (31) and the side plate (32) and is positioned in the middle of the bottom plate (31), the oxygen bottle cabinet (37) is arranged on the intersection angle of the bottom plate (31) and the side plate (32) and is positioned at the rear end of the bottom plate (31), the equipment frame (38) is arranged at the front end of the side plate (32), the single seat (39) is arranged on the bottom plate (31), the folding chair (310) is arranged at the front end of the right side of the bottom plate (31), the fire extinguisher (311) is arranged at the rear end of the right side of the bottom plate (31) and is positioned below the single seat (39), the interphone (312) is arranged on the front partition plate (33), the ultraviolet disinfection lamp (313) is arranged at the middle position above the front partition plate (33), the 220V power socket (314) and the low-voltage power socket (315) are arranged on the side plate (32), the top exhaust fan (316) and the in-cabin illuminating lamp (318) of the straight handrail (317) are arranged on the top plate (34);

the breathing machine (41) is arranged above the hub cabinet (36).

6. A5G ambulance according to claim 5, wherein: the life support system (40) further comprises a defibrillator (42), a sputum aspirator (43), a lathe stretcher (44), an oxygen cylinder (45), a humidifier (46) and a movable infusion support (47);

the defibrillator (42) and the sputum aspirator (43) are both arranged on the equipment frame (38), the lathe stretcher (44) is arranged in the middle of the bottom plate (31), the oxygen cylinder (45) is arranged in the oxygen cylinder cabinet (37), the humidifier (46) is arranged in the middle of the side plate (32), and the movable infusion support (47) is arranged on the top plate (34).

7. A5G ambulance according to any one of claims 1-6, wherein: the vehicle-mounted doctor workstation (54) comprises a patient filing module, the patient filing module takes a patient as a center, a first-aid ambulance goes out to visit a doctor to build a file, all relevant doctors in a hospital automatically default to enter a workgroup according to the type of first aid after the filing is completed, doctors in the workgroup can receive relevant information of the patient, and the medical record information of the patient is perfected according to the disease development of the patient, so that the latest case information can be quickly acquired and read.

8. A 5G ambulance according to claim 7, wherein: the vehicle-mounted doctor workstation (54) comprises an instant interaction module and a medical record recording module, wherein the instant interaction module is used for interaction of characters, voice, pictures or videos, the instant interaction module comprises a chat session window, and an electrocardiogram sending module is arranged on the chat session window.

9. A 5G ambulance according to claim 8, wherein: the vehicle-mounted doctor workstation (54) comprises a time node recording module and a treatment process recording module;

the time node recording module records the first medical contact time, the first electrocardiogram time in the hospital and the electrocardiogram diagnosis time, and the vehicle-mounted doctor workstation (54) synchronizes data information acquired by the patient to the medical record recording module.

10. A 5G ambulance according to claim 9, wherein: the vehicle-mounted doctor workstation (54) comprises a data display module, and the data display module sends data information of a patient to a mobile terminal of a medical worker through the vehicle-mounted streaming media server (52).

Technical Field

The invention relates to the technical field of ambulances, in particular to a 5G ambulance.

Background

The 5G is a fifth generation broadband mobile communication technology with the characteristics of high speed, low time delay and large connection, and is a network infrastructure for realizing man-machine-object interconnection. The 5G is mainly applied to mobile broadband enhancement, ultrahigh-reliability low-delay communication and mass machine communication, the peak rate reaches 10-20Gbit/s to meet the requirement of high-definition video, virtual reality and other large data volume transmission, the air interface delay is as low as 1ms to meet the requirement of real-time application of automatic driving, telemedicine and the like, the device has the device connection capacity of million connections/square kilometer, and the communication of the Internet of things is met.

The ambulance in the market at present generally adopts a fourth-generation broadband mobile communication technology, has the problems of low transmission speed (only 100Mbps), small coverage range (the base station can only realize the coverage of a range of several kilometers), transfer of signals through the base station and the like, can only be used for transmitting signals such as images and videos, has high network delay, and seriously restricts the application range of technologies such as high-definition videos, virtual reality, automatic driving, telemedicine and internet of things in the ambulance.

Disclosure of Invention

The invention aims to overcome the defects of the prior fourth-generation broadband mobile communication technology in the application of ambulances, and provides a 5G ambulances which has the characteristics of mobile broadband enhancement, ultrahigh reliability, low-delay communication, massive machine communication and the like, solves the defects of low signal transmission speed, small coverage range, signal transfer through a base station and the like of the prior ambulances, and can expand the application range of the technologies such as high-definition video, virtual reality, automatic driving, telemedicine, internet of things and the like in ambulances.

In order to achieve the aim, the invention provides a 5G ambulance which comprises a vehicle body, a driving cabin, a medical cabin, a life support system and a 5G remote consultation system; the medical treatment cabin is arranged on the body part of the vehicle body; the life support system is arranged in the medical cabin; the life support system comprises a breathing machine arranged in the medical cabin; the 5G remote consultation system comprises at least one medical cabin camera for monitoring the interior of the medical cabin, an industrial grade 5G CPE, a vehicle-mounted streaming media server, a multi-parameter monitor, a vehicle-mounted doctor workstation and a positioning system; the multi-parameter monitor and the vehicle-mounted doctor workstation are both arranged in the medical cabin; the vehicle-mounted current media server respectively collects and caches data information of the breathing machine, the medical cabin camera, the positioning system, the vehicle-mounted doctor workstation and the multi-parameter monitor, and sends the collected data to an external hospital information system through the industrial grade 5G CPE.

Preferably, the cockpit comprises a plurality of single seats, a cockpit camera for monitoring the behavior of a driver and a front camera for monitoring the road condition; the single seat is installed on the floor of the cockpit, the cockpit camera is installed at the top of a copilot of the cockpit, and the front camera is installed in the middle of the cockpit; and the vehicle-mounted current media server respectively collects and caches data information of the cockpit camera and the front camera and sends the collected data to an external hospital information system through the industrial grade 5G CPE.

Preferably, the medical cabin comprises a cabin structure enclosed by a bottom plate, a plurality of side plates, a front partition plate and a top plate, and the cabin structure is attached to the inner side of the vehicle body.

Preferably, the industrial grade 5G CPE, the vehicle-mounted streaming media server and the positioning system are all arranged on the front partition plate and are positioned on one side of the cockpit; the multi-parameter monitor and the vehicle-mounted doctor workstation are both arranged in the medical cabin.

Preferably, the medical cabin further comprises a hanging cabinet, a hub cabinet oxygen cylinder cabinet, an equipment rack, a plurality of single seats, a cabinet type folding chair, a fire extinguisher, an interphone, a 12V ultraviolet disinfection lamp, a 220V power socket, a low-voltage power socket, a top exhaust fan, a straight handrail and an in-cabin illuminating lamp which are arranged in the cabin body structure; the portable oxygen-enriched air purifier is characterized in that the wall cupboard is arranged on the intersection angle of the side plate and the top plate, the wheel hub cabinet is arranged on the intersection angle of the bottom plate and the side plate and is positioned in the middle of the bottom plate, the oxygen cylinder cabinet is arranged on the intersection angle of the bottom plate and the side plate and is positioned at the rear end of the bottom plate, the equipment frame is arranged at the front end of the side plate, the single seat is arranged on the bottom plate, the folding chair is arranged at the front end of the right side of the bottom plate, the fire extinguisher is arranged at the rear end of the right side of the bottom plate and is positioned below the single seat, the interphone is arranged on the front partition plate, the ultraviolet disinfection lamp is arranged in the middle position above the front partition plate, the 220V power socket and the low-voltage power socket are arranged on the side plate, and the top exhaust fan and the I-shaped handrail cabin illuminating lamp are arranged on the top plate; the breathing machine is arranged above the hub cabinet.

Preferably, the life support system further comprises a defibrillator, a sputum aspirator, a lathe stretcher, an oxygen cylinder, a humidifier and a movable infusion support; the defibrillator with the sputum aspirator all installs on equipment rack, the lathe stretcher is installed in the middle part of bottom plate, the oxygen cylinder is installed in the oxygen cylinder cabinet, the humidifier is installed in the centre of curb plate, the removal infusion support is installed on the roof.

Preferably, the vehicle-mounted doctor workstation comprises a patient filing module, the patient filing module uses a patient as a center, a first-aid ambulance goes out to visit a doctor to build a file, all relevant doctors in a hospital automatically enter a working group in a default mode according to the type of first aid after the filing is completed, doctors in the working group can receive relevant information of the patient, and the medical record information of the patient is perfected according to the disease development of the patient, so that the latest case information can be quickly acquired and read.

Preferably, the vehicle-mounted doctor workstation comprises an instant interaction module and a medical record recording module, wherein the instant interaction module is used for interaction of characters, voice, pictures or videos, the instant interaction module comprises a chat session window, and an electrocardiogram sending module is arranged on the chat session window.

Preferably, the vehicle-mounted doctor workstation comprises a time node recording module and a treatment process recording module; the time node recording module records the first medical contact time, the first electrocardiogram time in the hospital and the electrocardiogram diagnosis time, and the vehicle-mounted doctor workstation synchronizes the data information collected by the patient to the input medical record module.

Preferably, the vehicle-mounted doctor workstation comprises a data display module, and the data display module sends data information of the patient to the mobile terminal of the medical staff through the vehicle-mounted streaming media server.

Compared with the prior art, the invention has the beneficial effects that:

the invention aims to overcome the defects of the prior fourth-generation broadband mobile communication technology in the application of ambulances, and provides a 5G ambulances which has the characteristics of mobile broadband enhancement, ultrahigh reliability, low-delay communication, massive machine communication and the like, solves the defects of low signal transmission speed, small coverage range, transfer of signals through a base station and the like of the prior ambulances, and can expand the application range of the technologies such as high-definition video, virtual reality, automatic driving, remote medical treatment, Internet of things and the like in the ambulances; particularly, the 5G technology is utilized to transmit data information of a medical cabin camera, industrial grade 5G CPE, a multi-parameter monitor, a vehicle-mounted doctor workstation and a positioning system, so that the rescue success rate of a patient is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a 5G ambulance provided by the present invention;

FIG. 2 is a front view of the vehicle body provided by the present invention;

FIG. 3 is a schematic structural view of a vehicle body provided by the present invention;

FIG. 4 is a bottom view of the vehicle body provided by the present invention;

FIG. 5 is a schematic view of a medical pod configuration provided by the present invention;

FIG. 6 is a front view of a medical pod provided by the present invention;

FIG. 7 is a top view of a medical pod provided by the present invention;

FIG. 8 is a right side view of a medical pod provided by the present invention;

fig. 9 is a schematic diagram of a 5G remote consultation system provided in the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, an embodiment of the present invention provides a 5G ambulance, which includes a vehicle body 10, a cockpit 20, a medical cabin 30, a life support system 40, and a 5G remote consultation system 50, and the components of the embodiment will be described in detail with reference to the accompanying drawings.

As shown in fig. 2, the vehicle body 10 includes a vehicle head 11 and a vehicle body 12 on an axle, and the vehicle head 11 and the vehicle body 12 are directly connected as a single body.

Further, as shown in fig. 3 and 8, the industrial-grade 5G CPE51 is installed on the front partition 33 between the medical cabin 30 and the cockpit 20 and located at one side of the cockpit 20, and the industrial-grade 5G CPE51 can convert the 5G signal into a WLAN signal or a wired signal, so as to provide wireless or wired broadband access service for the ambulance, thereby meeting the requirements of high protection and high reliability of the ambulance. The vehicle-mounted streaming media server 52 is installed on the front partition 33 between the medical cabin 30 and the cockpit 20, on the same side as the industrial-grade 5G CPE51 and on the left side of the industrial-grade 5G CPE51, the positioning system 57 (preferably, a GPS positioning system in this embodiment) is installed on the front partition 33 between the medical cabin 30 and the cockpit 20, on the same side as the vehicle-mounted streaming media server 52 and on the left side of the vehicle-mounted streaming media server 52, and the positioning system 57 provides functions of real-time tracking, track query, fuel consumption management, safety management, report statistics, positioning report storage, map position marking, online position query and the like for the ambulance.

When installed, the technical grade 5G CPE51 and the vehicle-mounted streaming media server 52 are fixed on the front partition 33 by using screws, and are cushioned by using spring pads and rubber blocks. The industrial grade 5G CPE51 can convert the 5G signal into a WLAN signal or a wired signal, provides wireless or wired broadband access service for the ambulance, and meets the requirements of high protection and high reliability of the ambulance. The vehicle-mounted streaming media server 52 supports the collection, caching, scheduling, transmission and playing of streaming media contents of the ambulance.

As shown in fig. 4, 3 individual seats 21 are mounted on the floor of the cockpit 20 and a cockpit camera 22 is mounted on top of the cockpit for monitoring driver behavior. A front camera 23 is installed in the middle of the cockpit 20, and is used to monitor the road surface condition.

As shown in fig. 5, a bottom plate 31 is installed below the inside of a body 12 of a vehicle body 10, a side plate 32 is installed at the left inside of the body 12 of the vehicle body 10, a front partition plate 33 is installed between a cockpit 20 and a medical cabin 30, a top plate 34 is installed above the inside of the body 12 of the vehicle body 10, a wall cabinet 35 is installed at the intersection angle of the side plate 32 and the top plate 34, a wheel hub cabinet 36 is installed at the intersection angle of the bottom plate 31 and the side plate 32 and is located at the middle of the bottom plate 31, an oxygen cylinder cabinet 37 is installed at the intersection angle of the bottom plate 31 and the side plate 32 and is located at the rear end of the bottom plate 31, an equipment rack 38 is installed at the intersection angle of the bottom plate 31 and the side plate 32 and is located at the front end of the bottom plate 31, 3 single-person seats 39 are installed at the right middle of the bottom plate 31, a folding chair 310 is installed at the right front end of the bottom plate 31, a fire extinguisher 311 is installed at the right rear end of the bottom plate 31, an interphone 312 is installed at the right end of the front partition plate 33, a 12V ultraviolet ray disinfection lamp 313 is installed at the middle position above the front partition plate 33, a lathe stretcher 44 is mounted on the middle portion of the bottom plate 31.

As shown in fig. 6, the ventilator 41 is installed above the hub locker 36, the defibrillator 42 is installed in the middle layer of the equipment rack 38, the sputum aspirator 43 is installed in the lowest layer of the equipment rack 38, the humidifier 46 is installed in the middle right side of the side plate 32, the 220V power socket 314 and the low voltage power socket 315 (in the preferred embodiment, 12V) are installed in the middle position of the side plate 32, the I-shaped handrail 317 is installed on the right side of the top plate 34, the multi-parameter monitor 53 and the vehicle-mounted doctor workstation 54 are installed on the hub locker 36 of the medical cabin 30, the front camera 55 of the medical cabin is installed on the left side of the front end of the top plate 34 of the medical cabin 30, the rear camera 56 of the medical cabin is installed on the left side of the rear end of the top plate 34 of the medical cabin 30, the front camera 55 of the medical cabin and the rear camera 56 of the medical cabin are installed to prevent entry and exit of people, and the function of monitoring the real-time status of the medical staff and patients in the medical cabin 30. The multi-parameter monitor 53 supports the function of dynamic blood pressure and the function of high-precision blood oxygen, and provides more accurate monitoring. And multiple wireless communication is supported, and the whole-process monitoring of patient monitoring information is realized. The device has the advantages of large-capacity data storage, power-down data storage supporting function, USB data copying, continuous storage of monitoring data and convenience for doctors to retrieve historical monitoring data of patients.

The vehicle-mounted doctor workstation 54 described above is centered on the patient, is configured by the first-visit ambulance out-of-visit doctor, automatically defaults all relevant doctors of the hospital to enter the workgroup according to the type of emergency after the configuration is completed, and doctors in the workgroup can receive relevant information of the patient, and complete medical record information of the patient according to the development of the patient's condition, and support to quickly acquire and retrieve latest case information. After the first-aid doctor establishes files, the system can automatically generate a medical record template for first-aid to support recording of key time points of first-aid and a treatment process, the key time points comprise first medical contact time, first electrocardiogram time in a hospital, electrocardiogram diagnosis time and the like, time axes are automatically generated to support simultaneous synchronization to a medical record library, and repeated recording is avoided. The vehicle-mounted doctor workstation 54 adopts structured data, can directly check structured data storage in a database form, can be installed on a common mobile phone of medical personnel, and is convenient for the medical personnel to record a treatment process and input accurate operation time. The on-board physician workstation 54 also supports the use of binding ambulances, supports client scanning of bound monitoring devices to establish patient medical records and monitoring data association functions, and supports unbinding functions. The on-board doctor workstation 54 supports instant interaction of text, voice and pictures, supports voice entry of medical records, and supports storage of the electrocardiogram pictures sent in the chat session window as the pre-hospital or in-hospital first electrocardiogram.

As shown in FIG. 7, a top exhaust fan 316 is installed at the middle position of the top plate 34, indoor illumination lamps 318 are installed on the top plate 34 at the periphery of the top exhaust fan 316, oxygen bottles 45 are installed in the oxygen bottle cabinet, and a movable infusion support 47 is installed at the middle right side of the top plate 34.

As shown in fig. 9, the positioning system 57, the medical cabin front camera 55, the medical cabin rear camera 56, the cockpit camera 22 and the front camera 23 are all connected to a vehicle-mounted 12V power supply, the vehicle-mounted streaming media server 52, the multi-parameter monitor 53, the vehicle-mounted doctor workstation 54 and the respirator 41 are all connected to a 220V power supply, and the industrial-grade 5G CPE51 is connected to the 220V power supply through a POE power adapter. The streaming media content generated by data, pictures, videos and the like generated by the positioning system 57, the medical cabin front camera 55, the medical cabin rear camera 56, the cockpit camera 22, the front camera 23, the multi-parameter monitor 53, the vehicle-mounted doctor workstation 54 and the respirator 41 is firstly collected and cached on the vehicle-mounted streaming media server 52, and then is interacted with information of a hospital through the industrial grade 5G CPE 51.

Wherein the multi-parameter monitor 53 supports the function of dynamic blood pressure and the function of high-precision blood oxygen, and provides more accurate monitoring. And multiple wireless communication is supported, and the whole-process monitoring of patient monitoring information is realized. The device has the advantages of large-capacity data storage, power-down data storage supporting function, USB data copying, continuous storage of monitoring data and convenience for doctors to retrieve historical monitoring data of patients. The multi-parameter monitor 53 can monitor and display non-invasive blood pressure, pulse oxygen saturation, electrocardiogram, heart rate, pulse, body temperature, respiratory rate, end-tidal carbon dioxide, fetal heartbeat, uterine contraction pressure and other items of adult and child patients.

In summary, the technology and the structure of the invention are novel, the defects of the existing fourth generation broadband mobile communication technology in the application of the ambulance are overcome, the 5G ambulance is provided, the characteristics of mobile broadband enhancement, ultrahigh reliability, low time delay communication, massive machine communication and the like are provided, the defects that the existing ambulance is low in signal transmission speed and coverage area, signals need to be transferred through a base station and the like are overcome, and the application range of technologies such as high-definition video, virtual reality, automatic driving, telemedicine and internet of things in the ambulance can be expanded.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.