Field operating bed box

By designing an independent telescopic section and a leg structure in the wild surgical bed box, and the backboard and leg boards adjusted by angle, the problem of unstable support and position demand in existing technologies have been solved. More stable support and multi -angle position adaptation.

CN222383614UActive Publication Date: 2025-01-24CSSC HAISHEN MEDICAL TECH CO LTD
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Patent Information

Application Number
CN202421035393.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-14
Publication Date
2025-01-24
Estimated Expiration
2034-05-14

AI Technical Summary

Technical Problem

The existing field surgical bed box has shortcomings in supporting high center of gravity, unstable, and unadjustable leg plate angles, which cannot meet the needs of different positions and the use requirements of uneven ground.

Method used

Design a kind of wild surgical bed box with an independent telescopic joint and bottom -foot structure, with an angle adjustment component with an angle of the backplane and leg board, which adds a drawer and demolished rail to provide multi -angle support. And convenient storage.

Benefits of technology

It achieves more stable support, reduces the risk of tipping, adapts to different ground heights, and meets the patient's multiple positioning needs during surgery.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a field operating bed box. The field operating bed box comprises a box body, the box body is provided with two opposite side plates which are rotationally connected with a top plate of the box body at the tops respectively, and the two side plates are a back plate and a leg plate respectively; a side plate supporting mechanism, a storage drawer and a supporting leg mechanism are sequentially arranged in the box body from top to bottom. The side plate supporting mechanism comprises a back plate angle adjusting assembly and a leg plate angle adjusting assembly which are assembled at the top in the box body; the storage drawer is assembled in the middle in the box body in a sliding manner; the supporting leg mechanism comprises a first supporting leg and a second supporting leg which are fixedly arranged at the bottom in the box body and can be unfolded outwards. On the basis of meeting the transportation requirement and the rapid folding and unfolding requirement, different body position requirements of a patient in the operation process are further met, and the medical emergency stretcher is suitable for being used in emergency medical rescue.
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Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment and relates to an adjustable operating table used in field medical rescue, in particular to a field operating bed box. Background Art

[0002] When natural disasters, terrorist attacks, epidemics and other emergencies cause a large number of injuries or illnesses, it is necessary to set up a temporary treatment system at the first scene as soon as possible for on-site inspection of injuries, preliminary treatment, emergency treatment, etc.

[0003] At present, the following methods are generally adopted: find a fixed place, transfer hospital beds, tables and related medical facilities, and build a temporary treatment system. The temporary treatment system built by this method can properly handle the treatment target and provide more comprehensive emergency diagnosis and treatment methods, but it is highly dependent on fixed places (such as factories, houses, etc.), has high requirements for the external environment, and cannot meet the needs of rapid deployment and convenient transportation of equipment in the field.

[0004] In special circumstances, stretchers equipped with basic equipment will also be used. They meet the needs of rapid deployment and can provide emergency treatment to the target of treatment as soon as possible. However, they do not have the ability to be sealed for transportation and cannot carry sophisticated medical examination instruments, so the examination methods and treatment means they can support are very limited.

[0005] In addition, bed boxes based on composite boxes are also widely used. For example, the Chinese utility model patent with the authorization announcement number CN211986152U discloses a field surgical bed box, which uses a composite box as the basic form, adds legs and other components, and the box covers on both sides can be unfolded to become part of the bed surface, which can quickly provide an operating platform for emergency treatment of the wounded. When the legs are folded and the box covers are closed, it can be quickly stored in a box form that is easy to transport. This type of bed box can quickly realize the transformation from a box to a bed type, which can meet both the needs of transportation and the needs of rapid unfolding and retraction of field surgical beds, and has strong practicality in emergency medical rescue.

[0006] However, this type of operating bed box also has certain defects, as follows:

[0007] First, the legs are connected to the inner side of the box covers on both sides (i.e., the first side wall). When the operating table is unfolded, the legs directly support the box covers, and the support center of gravity is high, which makes it easy to tip over during use;

[0008] Second, the height of the outriggers cannot be adjusted. When the ground is uneven, they cannot contact the ground well, making the support unstable.

[0009] Third, the use of the adapter frame and the support frame only allows the backboard (i.e., the first side wall supporting the patient's back) to be angle-adjustable, while the leg board (i.e., the first side wall supporting the patient's legs) is not angle-adjustable, which makes it impossible to meet the needs of the injured in certain specific situations, such as leg surgery, making it inconvenient for doctors to perform surgery. Utility Model Content

[0010] In order to solve the above deficiencies in the prior art, the utility model aims to provide a field operating table box, so as to further meet the different body position requirements of patients during surgery on the basis of meeting the transportation needs and the needs of rapid expansion and contraction.

[0011] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a field operation bed box, comprising a box body; the box body has two relatively side panels which are rotatably connected to the top plate of the box body at the top, and the two side panels are respectively a back panel and a leg panel; the box body is provided with a side panel support mechanism, a storage drawer and a leg support mechanism in sequence from top to bottom;

[0012] The side panel support mechanism includes a back panel angle adjustment component and a leg panel angle adjustment component assembled on the top of the box body;

[0013] The storage drawer is slidably assembled in the middle of the box body;

[0014] The leg mechanism includes a first leg and a second leg fixed at the bottom of the box body; at least two first legs are arranged in parallel and spaced apart, each including a first telescopic section that can extend toward the back plate side to be unfolded and a first base foot that can be detachably arranged at the free end of the first telescopic section; at least two second legs are arranged in parallel and spaced apart, each including a second telescopic section that can extend toward the leg plate side to be unfolded and a second base foot that can be detachably arranged at the free end of the second telescopic section.

[0015] As a limitation of the present utility model, the backplane angle adjustment assembly includes a backplane support base slidably mounted on the top of the box body and a backplane support rod rotatably connected to the backplane support base;

[0016] An angle adjustment limit groove group is fixedly provided on the inner side surface of the back plate. The angle adjustment limit groove group includes a plurality of limit grooves arranged along the length direction of the back plate, and each limit groove can clamp the back plate support rod.

[0017] As a further limitation of the present invention, the back panel support base is a box-shaped structure, which is assembled on the top of the box body through a lockable heavy-duty slide rail.

[0018] As another limitation of the present invention, the leg board angle adjustment assembly includes at least two gas springs; the fixed ends of the gas springs are hinged in the box, and the control ends of the gas springs are hinged to the inner side of the leg board.

[0019] As a further limitation of the present invention, both sides of the back panel are provided with detachable first side rails;

[0020] An arm support assembly is slidably mounted on each first side rail.

[0021] As a further limitation of the present invention, the arm support assembly includes a first slider for mounting on the first side rail, a first mounting rod inserted on the first slider, and an arm support rotatably mounted on the top end of the first mounting rod;

[0022] A first pressing rod for positioning is threadedly mounted on the first sliding block, and the end of the first pressing rod can abut against the side wall of the first mounting rod to make the first mounting rod in close contact with the first side rail.

[0023] As a third limitation of the present invention, both sides of the leg plate are provided with a detachable second side rail;

[0024] A leg support assembly is slidably mounted on each second side rail.

[0025] As a further limitation of the present invention, the leg support assembly includes a second slider for assembly on the second side rail, a second mounting rod inserted on the second slider, and a leg support fixedly mounted on the top end of the second mounting rod;

[0026] A second pressing rod for positioning is threadedly mounted on the second sliding block, and the end of the second pressing rod can abut against the side wall of the second mounting rod to make the second mounting rod in close contact with the second side rail.

[0027] As another limitation of the present invention, detachable foldable armrests are provided on both sides of the top plate of the box body.

[0028] As a further limitation of the present invention, handles for carrying are provided on both side panels fixedly arranged on the box body.

[0029] Due to the adoption of the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0030] (1) The utility model redesigns the leg structure. It is independent of the back plate and the leg plate, and adopts a telescopic joint and a foot structure. When in use, the telescopic joint is unfolded outward, and then the foot height is installed and adjusted to form a leg to support the box. When folded, the foot can be removed and the telescopic joint can be recovered. The leg structure reduces the height of the support center of gravity while ensuring the convenience of unfolding and folding, so that the box can be supported more stably and not easily tipped over. In addition, the foot height is adjustable, which can adapt to uneven ground and make the support more stable.

[0031] Based on the redesign of the leg structure, the utility model also adds independent support structures for the back board and the leg board, which not only ensures stable support, but also allows the back board and the leg board to be adjusted at multiple angles, thereby meeting the different body position requirements of patients during surgery.

[0032] (2) The utility model has a storage drawer in the middle of the box body, which can be used to store surgical clothes and towels, intraoperative temperature maintenance equipment and other instruments, which is convenient for storage and retrieval.

[0033] (3) The utility model has mounting holes reserved on both sides of the back plate and leg plate for quick disassembly and assembly of the side rails. The side rails can realize the sliding of the arm support assembly or the leg support assembly to adjust the fixed position, so as to meet the arm support angle adjustment and leg support angle adjustment during the operation, so as to facilitate the doctor's operation.

[0034] (4) The foldable handrails provided on both sides of the top plate of the box body of the utility model can prevent the injured from falling from the unfolded operating table to the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The present invention is described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0036] Figure 1 This is a schematic diagram of the structure of the embodiment of the utility model in a folded state;

[0037] Figure 2 It is a schematic diagram of the structure of the embodiment of the utility model in the unfolded state;

[0038] Figure 3 This is a front view of the structural relationship of the embodiment of the utility model in the unfolded state;

[0039] Figure 4 It is a three-dimensional diagram of the structural relationship of the embodiment of the utility model when the leg support assembly and the arm support assembly are not assembled;

[0040] Figure 5 This is a schematic diagram of the structure of the back panel angle adjustment assembly in an embodiment of the utility model;

[0041] Figure 6 This is a structural schematic diagram of the leg angle adjustment assembly in an embodiment of the utility model;

[0042] Figure 7 This is a structural schematic diagram of the leg mechanism in the embodiment of the utility model;

[0043] Figure 8 This is a schematic diagram of the structure of the foldable armrest in the embodiment of the utility model; wherein: Figure 8 a is a schematic diagram of the unfolded state. Figure 8 b is a schematic diagram of the folded state;

[0044] Fig. 9 This is a schematic diagram of the installation structure of the arm support assembly on the back plate in an embodiment of the utility model;

[0045] Fig.10 This is a schematic diagram of the installation structure of the arm support assembly on the back plate at another angle in an embodiment of the utility model;

[0046] Fig.11 This is a schematic diagram of the installation structure of the leg support assembly on the leg board in an embodiment of the utility model;

[0047] In the figure: 1. Box body; 2. Back panel angle adjustment assembly; 3. Leg panel angle adjustment assembly; 4. Storage drawer; 5. Leg support mechanism; 6. Arm support assembly; 7. Leg support assembly; 8. Folding armrest;

[0048] 101. top plate; 102. back plate; 103. leg plate; 104. bottom plate; 105. handle;

[0049] 201, back panel support base; 202, back panel support rod; 203, angle adjustment limit slot group;

[0050] 301, gas spring;

[0051] 401, first leg; 402, second leg; 403, first telescopic joint; 404, first foot; 405, second telescopic joint; 406, second foot; 407, quick-release pin;

[0052] 501, first slider; 502, first mounting rod; 503, arm support; 504, first jacking rod; 505, first side rail; 506, cushion block; 507, jacking screw;

[0053] 601, second slider; 602, second mounting rod; 603, leg support; 604, second tightening rod; 605, second side rail;

[0054] 701, first handrail; 702, second handrail. DETAILED DESCRIPTION

[0055] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and understand the present invention, and are not used to limit the present invention.

[0056] The present embodiment is a surgical bed box with a redesigned structure. It uses an aluminum profile as a frame and a carbon fiber composite material as a panel. A back panel angle adjustment component 2 is installed on the aluminum profile as a support for the back panel 102, and a leg panel angle adjustment component 3 is installed on the aluminum profile as a support for the leg panel 103, so as to achieve angle adjustment of the back panel 102 and the leg panel 103 respectively; installation holes are reserved on both sides of the back panel 102 and the leg panel 103, and pads 506 are pre-installed to install side rails that can be quickly disassembled and assembled. The side rails are of universal size and can be matched with the arm support component 6 and the leg support component 7. The arm support component 6 and the leg support component 7 can slide along the side rails to achieve multi-angle adjustment to meet the patient's use needs; a storage drawer 4 is installed on the aluminum profile frame, which can be used to store surgical towels and instruments such as intraoperative body temperature maintenance equipment; the leg support structure is improved to make it more stable and not prone to tipping. The specific implementation plan of this embodiment is as follows:

[0057] 1. Box 1

[0058] The box 1 is a carbon fiber composite box, which uses aluminum profiles as a frame and carbon fiber composite materials as a panel, and has the outstanding advantages of light weight and high rigidity. Figure 1 As shown, the box body 1 is enclosed by a top plate 101, a bottom plate 104 and four side plates. Among them, two opposite side plates are rotatably connected to the top plate 101 at the top, and can be unfolded upward to form a Figure 2 In the state shown, the present embodiment defines the two side panels as a back panel 102 and a leg panel 103 respectively; the other two opposite side panels are fixedly connected to the top panel 101 at the top and to the bottom panel 104 at the bottom, and are both provided with a handle 105 for carrying in the middle.

[0059] The box body 1 is provided with a side panel support mechanism, a storage drawer 4 and a leg mechanism 5 in sequence from top to bottom.

[0060] 2. Side panel support mechanism

[0061] The side panel support mechanism comprises a back panel angle adjustment component 2 and a leg panel angle adjustment component 3 which are assembled on the top of the box body 1 .

[0062] like Figures 2 to 4 As shown, the backboard angle adjustment assembly 2 is used to support the unfolded backboard 102 so that the backboard 102 has sufficient strength to support the patient's upper body. Figure 5As shown, the back panel angle adjustment assembly 2 includes a back panel support base 201 and a back panel support rod 202, wherein the back panel support base 201 is a box-like structure, which is assembled on the top of the box body 1 through a lockable heavy-duty slide rail in the prior art, and can be locked in this position both in the closed position and the opened position through the lockable heavy-duty slide rail; the back panel support rod 202 is a U-shaped rod, both ends of which are rotatably connected to the back panel support base 201, and the arched middle part can rotate freely. In the folded state, the back panel support rod 202 is stored in the back panel support base 201.

[0063] It should be added that the back plate 102 of the box body 1 is provided with an angle adjustment limit groove group 203 on the inner side surface. Figure 5 As shown, the angle adjustment limiting operation includes a plurality of limiting grooves arranged in sequence along the length direction of the back plate 102 , and each limiting groove can independently clamp the back plate support rod 202 .

[0064] By clamping the back panel support rod 202 in different limiting grooves, the back panel 102 can be adjusted to different angles. The angle when the back panel 102 is folded and closed is defined as 0°, and the back panel 102 can be adjusted to an angle of 90° to 135°.

[0065] like Figures 2 to 4 As shown, the leg board angle adjustment assembly 3 is used to support the unfolded leg board 103 so that the leg board 103 has sufficient strength to support the patient's lower body. Figure 6 As shown, the leg plate angle adjustment assembly 3 includes at least two gas springs 301. In this embodiment, two gas springs 301 are provided, respectively located on both sides of the leg plate 103. The gas spring 301 adopts the controllable gas spring 301 in the prior art, and its fixed end is hinged on the inner side wall of the box body 1, and the control end is hinged on the inner side surface of the leg plate 103, adjacent to the free end of the leg plate 103.

[0066] By extending the control end of the gas spring 301 to different lengths, the leg plate 103 can be adjusted to different angles. The angle when the leg plate 103 is closed is defined as 0°, and the back plate 102 can be adjusted to an angle of 0° to 120°.

[0067] 3. Storage drawer 4

[0068] The storage drawer 4 adopts the existing structure, which includes two, which are sequentially assembled from top to bottom in the middle of the box body 1. The storage drawer 4 can be used to store surgical towels, surgical instruments, and instruments such as intraoperative body temperature maintenance equipment.

[0069] 4. Outrigger Mechanism 5

[0070] The leg mechanism 5 is fixedly arranged at the bottom of the box body 1 to provide stable support for the box body 1 and prevent the box body 1 from tipping over. Figure 7As shown, the leg mechanism 5 includes a first leg 401 and a second leg 402. In this embodiment, there are four first legs 401 and second legs 402 in total. Two first legs 401 are arranged in parallel and spaced apart, including a first telescopic section 403 that can extend toward the back plate 102 to be unfolded and a first foot 404 inserted at the free end of the first telescopic section 403; two second legs 402 are arranged in parallel and spaced apart, including a second telescopic section 405 that can extend toward the leg plate 103 to be unfolded and a second foot 406 inserted at the free end of the second telescopic section 405.

[0071] The first telescopic section 403 and the second telescopic section 405 are both three-section structures, and each two adjacent sections are fixedly connected by a quick plug-in pin 407 .

[0072] After unfolding, use the quick plug pin 407 to fix the length of the first telescopic section 403 and the second telescopic section 405, then insert the first foot 404 into the free end of the first telescopic section 403, insert the second foot 406 into the free end of the second telescopic section 405, and adjust the height of the first foot 404 and the second foot 406 so that they are in contact with the ground. When folding, pull out the first foot 404 and the second foot 406, turn 180°, insert the first foot 404 into the free end of the first telescopic section 403, insert the second foot 406 into the free end of the second telescopic section 405, then pull out the quick plug pin 407, and retract the first telescopic section 403 and the second telescopic section 405 into the box body 1.

[0073] It should be noted that the number of the first legs 401 and the second legs 402 is not limited to four, and may also be six, eight, etc.

[0074] 5. Armrest assembly 6, legrest assembly 7 and foldable armrest 8

[0075] The arm support assembly 6 is used to meet the different placement requirements of the patient's arm. Fig. 9 , Fig.10 As shown, the arm support assembly 6 includes a first slider 501, a first mounting rod 502 inserted on the first slider 501, and an arm support 503 rotatably mounted on the top of the first mounting rod 502. The first slider 501 is threadedly mounted with a first tightening rod 504, and the end of the first tightening rod 504 is perpendicular to the side wall of the first mounting rod 502.

[0076] It should be added that both sides of the back plate 102 of the box body 1 are provided with detachable first side rails 505 for slidingly assembling the arm support assembly 6. Specifically, Fig.10As shown, mounting holes are provided on both sides of the back plate 102, and pads 506 are bonded to the corresponding mounting holes by structural adhesive. The first side rail 505 is inserted into the pads 506 through the mounting holes, and then the top screw 507 is inserted from the bottom to fix the part inserted into the pads 506, so that the first side rail 505 is quickly fixed to the side of the back plate 102.

[0077] Install the first slider 501 at a suitable position on the first side rail 505, adjust the first mounting rod 502 to a suitable height, and use the first tightening rod 504 to support the first mounting rod 502 so that the first mounting rod 502 is in close contact with the first side rail 505, so that the whole can be fixed on the first side rail 505.

[0078] In actual use, the fixed position of the arm support assembly 6 on the first side rail 505 can be adjusted, and the arm support 503 can also be rotated to change the angle of the arm support 503 to meet the requirements of different arm fixing angles during surgery.

[0079] The leg support assembly 7 is used to meet the different placement requirements of the patient's legs. Fig.11 As shown, the leg support assembly 7 includes a second slider 601, a second mounting rod 602 inserted on the second slider 601, and a leg support 603 fixedly mounted on the top of the second mounting rod 602. The second slider 601 is threadedly mounted with a second tightening rod 604, and the end of the second tightening rod 604 is perpendicular to the side wall of the second mounting rod 602.

[0080] It should be added that both sides of the leg plate 103 of the box body 1 are provided with detachable second side rails 605 for slidingly assembling the above-mentioned leg support assembly 7. The structure and assembly method are the same as the first side rails 505, and will not be repeated here.

[0081] The foldable armrest 8 is used to prevent the injured from falling from the operating table to the ground. Figures 2 to 4 As shown, the foldable handrail 8 is inserted into each side of the top plate 101 of the box body 1. The foldable handrail 8 is composed of a first handrail rod 701 and a second handrail rod 702, both of which are U-shaped. Figure 8 As shown, the second handrail bar 702 is rotatably connected to the first handrail bar 701 through a sleeve. The sleeve is provided with a first positioning pin hole and a second positioning pin hole opposite to each other along the radial direction of the sleeve, and the connecting line of the first positioning pin hole and the second positioning pin hole coincides with the height direction of the second handrail bar 702; a spring positioning pin is provided at the corresponding position of the first handrail bar 701. When the spring positioning pin is located in the first positioning pin hole, the foldable handrail 8 is unfolded to form a Figure 8 When the spring positioning pin is located in the second positioning pin hole, the foldable armrest 8 is folded, the first armrest rod 701 and the second armrest rod 702 overlap, forming a Figure 8 The structure shown in b.

[0082] It should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A field operation bed box, comprising a box body; the box body has two opposite side panels which are rotatably connected to the top panel of the box body at the top, the two side panels being a back panel and a leg panel respectively; characterized in that: The box body is provided with a side panel support mechanism, a storage drawer and a leg mechanism from top to bottom; The side panel support mechanism includes a back panel angle adjustment component and a leg panel angle adjustment component assembled on the top of the box body; The storage drawer is slidably assembled in the middle of the box body; The leg mechanism includes a first leg and a second leg fixed at the bottom of the box body; at least two first legs are arranged in parallel and spaced apart, each including a first telescopic section that can extend toward the back plate side to be unfolded and a first base foot that can be detachably arranged at the free end of the first telescopic section; at least two second legs are arranged in parallel and spaced apart, each including a second telescopic section that can extend toward the leg plate side to be unfolded and a second base foot that can be detachably arranged at the free end of the second telescopic section.

2. The field operation bed box according to claim 1, characterized in that: The backplane angle adjustment assembly includes a backplane support base slidably assembled on the top of the box body and a backplane support rod rotatably connected to the backplane support base; An angle adjustment limit groove group is fixedly provided on the inner side surface of the back plate. The angle adjustment limit groove group includes a plurality of limit grooves arranged along the length direction of the back plate, and each limit groove can clamp the back plate support rod.

3. The field operation bed box according to claim 2, characterized in that: The back panel support base is a box-like structure, which is assembled on the top of the box body through lockable heavy-duty slide rails.

4. The field operation bed box according to any one of claims 1 to 3, characterized in that: The leg plate angle adjustment assembly comprises at least two gas springs; the fixed ends of the gas springs are hinged in the box body, and the control ends of the gas springs are hinged on the inner side of the leg plate.

5. The field operation bed box according to claim 4, characterized in that: Both sides of the back panel are equipped with removable first side rails; An arm support assembly is slidably mounted on each first side rail.

6. The field operation bed box according to claim 5, characterized in that: The arm support assembly includes a first slider for assembly on the first side rail, a first mounting rod inserted on the first slider, and an arm support rotatably assembled on the top end of the first mounting rod; A first pressing rod for positioning is threadedly mounted on the first sliding block, and the end of the first pressing rod can abut against the side wall of the first mounting rod to make the first mounting rod in close contact with the first side rail.

7. The field operation bed box according to any one of claims 1-3, 5-6, characterized in that: There are removable second side rails on both sides of the leg panel; A leg support assembly is slidably mounted on each second side rail.

8. The field operation bed box according to claim 7, characterized in that: The leg support assembly includes a second slider for assembly on the second side rail, a second mounting rod inserted on the second slider, and a leg support fixedly mounted on the top end of the second mounting rod; A second pressing rod for positioning is threadedly mounted on the second sliding block, and the end of the second pressing rod can abut against the side wall of the second mounting rod to make the second mounting rod in close contact with the second side rail.

9. The field operation bed box according to any one of claims 1-3, 5-6, and 8, characterized in that: There are detachable folding armrests on both sides of the top plate of the box.

10. The field operation bed box according to claim 9, characterized in that: Both side panels fixedly arranged on the box body are provided with handles for carrying.

Citation Information

Patent Citations

  • Field operation bed box

    CN211986152U