CN220344894U - First-aid breathing bottle - Google Patents

Abstract

The utility model discloses an emergency breathing bottle, which comprises: the bottle body, the top of the bottle body is fixed with the control valve, the control valve is communicated with the bottle body, the outside of the control valve is fixed with the oxygen therapy tube, the oxygen therapy tube is communicated with the control valve, the outside of the upper end of the bottle body is provided with the control panel, the outside of the upper end of the bottle body, which is close to the control panel, is fixed with the oxygen inlet; the regulating and controlling component is arranged at the inner side position of the bottle body and used for regulating the oxygen concentration; and the moving assembly is arranged at the lower end position of the bottle body and used for moving and transporting the bottle body. According to the first-aid breathing bottle, through the structural design of the regulating and controlling component, the oxygen concentration can be regulated according to the condition requirements of different patients, recovery of the patients with different conditions is facilitated, waste of oxygen is avoided, the condition that the condition of the patients is worsened or the effect is poor is reduced, and the practicability of the device is improved.

Description

First-aid breathing bottle

Technical Field

The utility model relates to the technical field of respiratory bottles, in particular to an emergency respiratory bottle.

Background

In an intensive care unit of the respiratory department, the health condition of a patient is generally optimistic, and once functional respiratory disorder occurs, sudden death is extremely easy, and a doctor needs to breathe and supply for the patient during rescue; oxygen therapy is a conventional treatment scheme for clinically treating various acute and chronic diseases, can obviously improve the anoxic symptoms of organisms and promote the rehabilitation of patients, and the most important appliance in oxygen therapy is an emergency breathing bottle.

As disclosed in chinese patent (CN 218993084U), an emergency breathing bottle is described in which: the oxygen-absorbing bottle comprises a bottle body, wherein one side of the bottle body is connected with a handle through a pin shaft, a pressure reducing valve is arranged on the bottle body, a pressure gauge is arranged on one side of the pressure reducing valve, an oxygen concentration gauge is arranged at the top end of the bottle body and is connected to an oxygen pipe, a switching valve is arranged on the oxygen pipe, the oxygen pipe is connected with an oxygen absorbing mask through an oxygen pipe, and an oxygen inlet is formed in the bottle body; "the condition of each patient is different, so the oxygen concentration needed to be inhaled is also different, for the patient with high oxygen concentration requirement, the condition of the patient is difficult to be controlled immediately when the oxygen concentration is low, for the patient with low oxygen concentration requirement, the life may be endangered when the oxygen concentration is too high, so it is important to inhale the oxygen with proper oxygen concentration to the patient.

In summary, the following technical problems exist in the prior art: the patient's state of illness degree of every patient is different, so also different to the concentration of inhaled oxygen, current first aid breathing bottle can not carry out the regulation effect of different oxygen concentration according to patient's demand, consequently can not reach ideal effect to the oxygen uptake of different patients, can influence patient's state of illness and resume, and for this, this application provides a first aid breathing bottle, for solving the technical problem who mentions in the above-mentioned patent, provides a new technical scheme.

Disclosure of Invention

Based on this, it is necessary to provide a first aid breathing bottle to above-mentioned technical problem, through the structural design of regulation and control subassembly for can carry out the regulation of oxygen concentration according to the state of an illness needs of different patients, be favorable to the recovery to the patient of different states of an illness, avoid the waste of oxygen and reduce the condition appearance that patient's state of an illness worsened or the effect is not good, promoted the practicality of device.

In order to solve the technical problems, the utility model adopts the following technical scheme:

an emergency breathing bottle is applied to patient emergency.

The first-aid breathing bottle specifically comprises:

the bottle body, the top of bottle body is fixed with the control valve, the control valve is linked together with the bottle body, the outside of control valve is fixed with the oxygen therapy pipe, the oxygen therapy pipe is linked together with the control valve, the upper end outside of bottle body is provided with control panel, the upper end outside that the bottle body is close to control panel is fixed with the oxygen inlet;

the regulating and controlling component is arranged at the inner side position of the bottle body and used for regulating the oxygen concentration;

and the moving assembly is arranged at the lower end position of the bottle body and used for moving and transporting the bottle body.

As a preferred embodiment of the first-aid breathing bottle provided by the utility model, the regulation and control assembly comprises a baffle plate, the baffle plate is arranged at the inner side of the upper end of the bottle body and fixedly connected with the bottle body, a pipeline mixer is fixedly arranged at the middle position of the top end of the baffle plate, an oxygen guide pipe is vertically arranged at the inner side of the pipeline mixer, the lower end of the oxygen guide pipe extends to the inner side of the lower end of the bottle body, the other end of the oxygen guide pipe extends to the inner side of the control valve, and a filtering assembly is arranged at the top end of the baffle plate.

As a preferred implementation mode of the first-aid breathing bottle, the filtering component comprises an air filter, the air filter is arranged at the top end of the partition board, the air filter is fixedly connected with the partition board, an air suction pump is arranged at one end of the air filter, the air suction pump is fixedly connected with the partition board, a hollow tube is fixedly arranged at the air suction end of the air suction pump, the hollow tube extends to the outer side of the bottle body, a dust filtering plate is fixedly arranged at the inner side of one end, far away from the air suction pump, of the hollow tube, an air outlet end of the air suction pump is communicated with the air filter, and an adjusting component is arranged at the upper position of the air filter.

As a preferred implementation mode of the first-aid breathing bottle provided by the utility model, the adjusting component comprises an air duct, the air duct is arranged at the top end position of the air filter, one end of the air duct is fixedly connected with the air filter, the other end of the air duct is fixedly connected with the pipeline mixer, a fixed block is fixed at one side of the air duct far away from the pipeline mixer, a fixed frame is fixed at the top end of the partition plate and at the position close to the fixed block, a servo motor is fixed at the top end of the fixed frame, a telescopic rod is fixed at the output end of the servo motor, a first screw rod is fixed at the telescopic end of the telescopic rod, one end of the first screw rod far away from the telescopic rod penetrates through the fixed block and extends to the inner side of the air duct, a piston is fixed at one end of the inner side of the air duct, the piston is in sliding connection with the air duct, and the first screw rod is in threaded connection with the fixed block.

As a preferred implementation mode of the first-aid breathing bottle provided by the utility model, the moving assembly comprises a moving base, the moving base is arranged at the lower end of the bottle body, a fixed seat is fixed at the lower end of the bottle body, a plugging groove is formed in the position, corresponding to the fixed seat, of the top end of the moving base, the fixed seat is connected with the moving base through the plugging groove, a second screw rod is longitudinally arranged at one side of the moving base, one end, close to the moving base, of the second screw rod extends to the inner side of the plugging groove, the second screw rod is in threaded connection with the moving base, a rotating handle is fixed at one end, far away from the moving base, of the second screw rod, a fixing bolt is fixed at the other end of the second screw rod, the fixing bolt is in sliding connection with the moving base, a clamping groove is formed in the position, corresponding to the fixing bolt, and the fixing bolt is in plug-in connection with the fixing seat through the clamping groove.

As an optimal implementation mode of the first-aid breathing bottle, the four end angle positions of the lower end of the movable base are respectively provided with the movable wheels, and the movable wheels are fixedly connected with the movable base.

As a preferable implementation mode of the first-aid breathing bottle, one end of the movable base is fixed with a movable handrail.

Compared with the prior art, the utility model has the following beneficial effects:

according to the first-aid breathing bottle, through the structural design of the regulating and controlling component, the oxygen concentration can be regulated according to the condition requirements of different patients, recovery of the patients with different conditions is facilitated, waste of oxygen is avoided, the condition that the condition of the patients is worsened or the effect is poor is reduced, and the practicability of the device is improved.

According to the first-aid breathing bottle, the device can be transported quickly and conveniently through the structural design of the moving assembly, so that time waste caused by inconvenient taking and transportation of the device when a patient is rescued can be saved, the transportation efficiency of the device is improved, and the practicability of the device is improved.

Drawings

In order to more clearly illustrate the solution of the present utility model, a brief description will be given below of the drawings required for the description of the embodiments, it being obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of the overall structure of an emergency breathing bottle provided by the utility model;

FIG. 2 is a schematic diagram of a first aid breathing bottle control assembly according to the present utility model;

FIG. 3 is a schematic view of the first aid breathing bottle adjustment assembly of the present utility model;

fig. 4 is a schematic structural view of the first-aid breathing bottle moving assembly provided by the utility model;

fig. 5 is a schematic diagram of a connection structure between a first-aid breathing bottle body and a movable base.

The labels in the figures are illustrated below:

1. a bottle body; 2. a control valve; 3. an oxygen therapy tube; 4. a control panel; 5. a moving assembly; 6. a regulatory component; 7. an oxygen inlet; 8. an oxygen guide tube; 9. a pipeline mixer; 10. a fixing frame; 11. a servo motor; 12. an air filter; 13. a fixed block; 14. a partition plate; 15. an air duct; 16. a getter pump; 17. a dust filtering plate; 18. a piston; 19. a first screw; 20. a telescopic rod; 21. a hollow tube; 22. a fixing seat; 23. a movable base; 24. a moving wheel; 25. rotating the handle; 26. moving the armrest; 27. a second screw; 28. and a fixing bolt.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

As described in the background art, the severity of the illness state of each patient is different, so the concentration of the inhaled oxygen is also different, the existing first-aid breathing bottle can not adjust the concentration of the oxygen according to the demands of the patients, and therefore the oxygen inhalation of different patients can not achieve the ideal effect, and the illness state recovery of the patients can be influenced.

In order to solve the technical problem, the utility model provides an emergency breathing bottle which is applied to patient emergency.

Specifically, referring to fig. 1 to 3, the first-aid breathing bottle specifically includes:

the bottle body 1, the top of the bottle body 1 is fixed with a control valve 2, the control valve 2 is communicated with the bottle body 1, the outside of the control valve 2 is fixed with an oxygen therapy tube 3, the oxygen therapy tube 3 is communicated with the control valve 2, the outside of the upper end of the bottle body 1 is provided with a control panel 4, and the outside of the upper end of the bottle body 1, which is close to the control panel 4, is fixed with an oxygen inlet 7;

the regulating and controlling component 6 is arranged at the inner side position of the bottle body 1 and used for regulating the oxygen concentration;

and the moving assembly 5 is arranged at the lower end position of the bottle body 1 and is used for moving and transporting the bottle body 1.

According to the first-aid breathing bottle, through the structural design of the regulating and controlling component 6, the oxygen concentration can be regulated according to the condition requirements of different patients, recovery of the patients with different conditions is facilitated, waste of oxygen is avoided, the condition that the condition of the patients is worsened or the effect is poor is reduced, and the practicability of the device is improved.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

Example 1:

referring to fig. 1-3, an emergency breathing bottle, comprising: the bottle body 1, the top of the bottle body 1 is fixed with a control valve 2, the control valve 2 is communicated with the bottle body 1, the outside of the control valve 2 is fixed with an oxygen therapy tube 3, the oxygen therapy tube 3 is communicated with the control valve 2, the outside of the upper end of the bottle body 1 is provided with a control panel 4, so that a device inside the bottle body 1 can be regulated and controlled through the control panel 4, and an oxygen inlet 7 is fixed outside the upper end of the bottle body 1, which is close to the control panel 4, so that oxygen is injected into the bottle body 1 through the oxygen inlet 7;

the regulating and controlling component 6 is arranged at the inner side position of the bottle body 1 and used for regulating the oxygen concentration;

the regulating and controlling assembly 6 comprises a baffle 14, wherein the baffle 14 is arranged at the inner side of the upper end of the bottle body 1, the baffle 14 is fixedly connected with the bottle body 1, a pipeline mixer 9 is fixed at the middle position of the top end of the baffle 14, oxygen and air pumped into the pipeline mixer 9 can be mixed through the pipeline mixer 9, an oxygen guide pipe 8 is vertically arranged at the inner side of the pipeline mixer 9, the lower end of the oxygen guide pipe 8 extends to the inner side of the lower end of the bottle body 1, the other end of the oxygen guide pipe 8 extends to the inner side of the control valve 2, so that oxygen in the bottle body 1 is led out by being pulled by the oxygen guide pipe 8, a filtering assembly is arranged at the top end of the baffle 14, and air pumped into the bottle body 1 is filtered by the filtering assembly;

specifically, the filter assembly comprises an air filter 12, so that air is filtered through the air filter 12, the air filter 12 is arranged at the top end position of a partition plate 14, the air filter 12 is fixedly connected with the partition plate 14, one end of the air filter 12 is provided with an air suction pump 16, the air suction pump 16 is fixedly connected with the partition plate 14, so that external air is pumped into the bottle body 1 to provide a power source, the air suction end of the air suction pump 16 is fixedly provided with a hollow tube 21, the hollow tube 21 extends to the outer side of the bottle body 1, so that the air pumped into the bottle body 1 is guided through the hollow tube 21, the inner side of one end of the hollow tube 21 far away from the air suction pump 16 is fixedly provided with a dust filtering plate 17, the dust-proof effect is achieved, external dust is reduced from being inhaled into the device, the air outlet end of the air suction pump 16 is communicated with the air filter 12, and an adjusting assembly is arranged at the upper position of the air filter 12, so that the air entering the interior of the pipeline mixer 9 is controlled through the adjusting assembly, and the oxygen concentration is adjusted and controlled;

further, the adjusting component comprises an air duct 15, the air duct 15 is arranged at the top end position of the air filter 12, one end of the air duct 15 is fixedly connected with the air filter 12, the other end of the air duct 15 is fixedly connected with the pipeline mixer 9, the filtered air can be guided into the pipeline mixer 9, a fixed block 13 is fixed on one side, far away from the pipeline mixer 9, of the air duct 15, a fixing frame 10 is fixed at the top end of the partition plate 14 and near the position of the fixed block 13, a servo motor 11 is fixed at the top end of the fixing frame 10, a telescopic rod 20 is fixed at the output end of the servo motor 11, a first screw rod 19 is fixed at the telescopic end of the telescopic rod 20, one end, far away from the telescopic rod 20, penetrates through the fixed block 13 and extends to the inner side of the air duct 15, a piston 18 is fixed at one end, located at the inner side of the air duct 15, of the piston 18 is used for controlling the air guided into the pipeline mixer 9, the piston 18 is slidably connected with the air duct 15, the first screw rod 19 is in threaded connection with the fixed block 13, and the inner side of the fixed block 13 can be located when the first screw rod 19 rotates.

It can be known that when the concentration of oxygen needs to be regulated and controlled, firstly, the value of the concentration of oxygen needs to be regulated and controlled is input through the control panel 4, the servo motor 11 and the suction pump 16 are controlled to be started through the control panel 4, when the suction pump 16 is started, outside air is sucked into the air filter 12 through the hollow pipe 21, the air is filtered through the air filter 12, the purity of the air is ensured, then the servo motor 11 is started, the servo motor 11 drives the first screw rod 19 to rotate through the telescopic rod 20, when the first screw rod 19 rotates, the first screw rod 19 axially moves along the fixed block 13, the first screw rod 19 drives the piston 18 to move towards the direction close to the pipeline mixer 9, the inner space volume of the air duct 15 is controlled through the piston 18, thereby realizing the control of the air volume entering into the pipeline mixer 9, at the moment, the oxygen led into the inner side of the pipeline mixer 9 through the oxygen duct 8 is mixed with the filtered air, further enabling the oxygen to be diluted, then the diluted oxygen is discharged outwards through the manual control valve 2, the control of the concentration of the oxygen can be completed, the oxygen concentration can be controlled according to different conditions, the condition conditions of patients can be regulated and the condition is easy, the condition of the patients is not wasted, the condition of the patients is avoided, the condition is bad, the condition of the patients is reduced, and the condition is bad, and the patient condition is bad, and the condition is bad is also is reduced.

Example 2:

further optimizing the first-aid breathing bottle provided in embodiment 1, specifically, as shown in fig. 4 and 5, a moving assembly 5 is provided at the lower end position of the bottle body 1, for moving and transporting the bottle body 1;

the moving assembly 5 comprises a moving base 23, the moving base 23 is arranged at the lower end of the bottle body 1, a fixed seat 22 is fixed at the lower end of the bottle body 1, a splicing groove is formed in the position, corresponding to the fixed seat 22, of the top end of the moving base 23, the fixed seat 22 is connected with the moving base 23 through the splicing groove, the bottle body 1 cannot topple when placed at the top end of the moving base 23, a second screw rod 27 is longitudinally arranged at one side of the moving base 23, one end, close to the moving base 23, of the second screw rod 27 extends to the inner side of the splicing groove, the second screw rod 27 is in threaded connection with the moving base 23, when the second screw rod 27 rotates, the second screw rod 27 can move, one end, far from the moving base 23, of the second screw rod 27 is fixed with a rotating handle 25, the second screw rod 27 is driven to rotate by rotating the rotating handle 25, a fixing bolt 28 is fixed at the other end of the second screw rod 27, the fixing seat 22 is limited through the fixing bolt 28, meanwhile, the condition that the second screw rod 27 moves out of the inner side of the moving base 23 is reduced, the fixing bolt 28 is in sliding connection with the moving base 23, and the fixing seat 22 is connected with the fixing seat 22 through the clamping groove through the fixing bolt 28;

specifically, the four end angle positions of the lower end of the movable base 23 are respectively provided with a movable wheel 24, and the movable wheels 24 are fixedly connected with the movable base 23; a moving handrail 26 is fixed to one end of the moving base 23 so that the movement of the device is facilitated.

Through the above-mentioned structural design, when needs carry out the transportation to bottle 1, remove bottle 1 to fixing base 22 and the corresponding position department of spliced groove, place bottle 1 on the removal base 23 top, make fixing base 22 pass through spliced groove and removal base 23 grafting connection, then make through rotating handle 25 rotate handle 25 drive second screw rod 27 and rotate, second screw rod 27 can remove to the direction that is close to the spliced groove when second screw rod 27 rotates, make second screw rod 27 drive the gim peg 28 and remove, when gim peg 28 removes to the draw-in groove inboard, can accomplish the spacing to fixing base 22 through gim peg 28, and then accomplish the fixation to bottle 1, then through promoting removal handrail 26, can conveniently and fast carry bottle 1 and transport under the effect of moving wheel 24, make quick convenient transport the device, thereby can save the time waste that causes because of the device takes the transportation inconvenience when rescuing the patient, the practicality of the device has been improved.

The first-aid breathing bottle provided by the utility model has the following use process: when the bottle body 1 is required to be moved and transported, the bottle body 1 is moved to the position corresponding to the inserting groove of the fixing seat 22, the bottle body 1 is placed at the top end of the moving base 23, the fixing seat 22 is in inserting connection with the moving base 23 through the inserting groove, then the rotating handle 25 is rotated to drive the second screw rod 27 to rotate through the rotating handle 25, when the second screw rod 27 rotates, the second screw rod 27 moves towards the direction close to the inserting groove, the second screw rod 27 drives the fixing bolt 28 to move, when the fixing bolt 28 moves to the inner side of the clamping groove, the limit of the fixing seat 22 can be completed through the fixing bolt 28, the fixing of the bottle body 1 is further completed, then the bottle body 1 can be conveniently and rapidly transported under the action of the moving wheel 24 by pushing the moving handrail 26, when the concentration of oxygen is required to be regulated and controlled, firstly, inputting the value of oxygen concentration to be regulated and controlled through a control panel 4, controlling a servo motor 11 and an air suction pump 16 to start through the control panel 4, sucking external air into an air filter 12 through a hollow pipe 21 when the air suction pump 16 is started, filtering the air through the air filter 12 to ensure the purity of the air, starting the servo motor 11 to drive a first screw rod 19 through a telescopic rod 20 to rotate, moving the first screw rod 19 axially along a fixed block 13 when the first screw rod 19 rotates, driving a piston 18 to move towards a direction approaching a pipeline mixer 9 by the first screw rod 19, controlling the volume of a space inside an air guide pipe 15 through the piston 18, thereby realizing the control of the volume of the air entering the pipeline mixer 9, mixing the oxygen introduced into the pipeline mixer 9 through the oxygen guide pipe 8 with the filtered air, and then the oxygen is diluted, and then the diluted oxygen is discharged outwards by manually controlling the control valve 2, so that the control of the oxygen concentration can be completed.

Claims (6)

1. An emergency breathing bottle, comprising:

the bottle comprises a bottle body (1), wherein a control valve (2) is fixed at the top end of the bottle body (1), the control valve (2) is communicated with the bottle body (1), an oxygen therapy pipe (3) is fixed at the outer side of the control valve (2), the oxygen therapy pipe (3) is communicated with the control valve (2), a control panel (4) is arranged at the outer side of the upper end of the bottle body (1), and an oxygen inlet (7) is fixed at the outer side of the upper end of the bottle body (1) close to the control panel (4);

the regulating and controlling component (6) is arranged at the inner side position of the bottle body (1) and used for regulating the oxygen concentration;

the moving assembly (5) is arranged at the lower end position of the bottle body (1) and is used for moving and transporting the bottle body (1);

the utility model provides a regulation and control subassembly (6) is including baffle (14), baffle (14) set up the inboard position department in upper end of bottle (1), baffle (14) and bottle (1) fixed connection, the intermediate position department on baffle (14) top is fixed with pipeline blender (9), the inboard vertical oxygen duct (8) that are provided with of pipeline blender (9), the lower extreme of oxygen duct (8) extends to the lower extreme inboard of bottle (1), the other end of oxygen duct (8) extends to the inboard of control valve (2), the top of baffle (14) is provided with filtering component.

2. The first-aid breathing bottle according to claim 1, wherein the filtering component comprises an air filter (12), the air filter (12) is arranged at the top end position of the partition board (14), the air filter (12) is fixedly connected with the partition board (14), one end of the air filter (12) is provided with a suction pump (16), the suction pump (16) is fixedly connected with the partition board (14), the suction end of the suction pump (16) is fixedly provided with a hollow tube (21), the hollow tube (21) extends to the outer side of the bottle body (1), the inner side of one end of the hollow tube (21) far away from the suction pump (16) is fixedly provided with a dust filtering plate (17), the air outlet end of the suction pump (16) is communicated with the air filter (12), and the upper position of the air filter (12) is provided with an adjusting component.

3. The first-aid breathing bottle according to claim 2, wherein the adjusting component comprises an air duct (15), the air duct (15) is arranged at the top end position of the air filter (12), one end of the air duct (15) is fixedly connected with the air filter (12), the other end of the air duct (15) is fixedly connected with the pipeline mixer (9), one side, far away from the pipeline mixer (9), of the air duct (15) is fixedly provided with a fixed block (13), a fixing frame (10) is fixed at the top end of the partition plate (14) and at a position close to the fixed block (13), a servo motor (11) is fixed at the top end of the fixing frame (10), a telescopic rod (20) is fixed at the output end of the servo motor (11), one end, far away from the telescopic rod (20), of the first screw (19) penetrates through the fixed block (13) and extends to the inner side of the air duct (15), the first screw (19) is located at the inner side of the air duct (15), the fixed block (18) is fixed at the inner end of the air duct (15), and the first screw (19) is connected with a piston (13) in a sliding mode.

4. The first-aid breathing bottle according to claim 1, wherein the moving assembly (5) comprises a moving base (23), the moving base (23) is arranged at the lower end position of the bottle body (1), a fixed seat (22) is fixed at the lower end of the bottle body (1), a plug-in groove is formed in the position, corresponding to the fixed seat (22), of the top end of the moving base (23), the fixed seat (22) is connected with the moving base (23) through the plug-in groove, a second screw rod (27) is longitudinally arranged at one side of the moving base (23), one end, close to the moving base (23), of the second screw rod (27) extends to the inner side of the plug-in groove, the second screw rod (27) is in threaded connection with the moving base (23), a rotating handle (25) is fixed at one end, corresponding to the plug-in groove (28) of the second screw rod (27), a plug-in groove (28) is formed in the other end, corresponding to the fixed seat (22), and the plug-in groove (28) is formed in the plug-in groove.

5. The first-aid breathing bottle according to claim 4, wherein the four end angular positions of the lower end of the movable base (23) are respectively provided with a movable wheel (24), and the movable wheels (24) are fixedly connected with the movable base (23).

6. Emergency breathing bottle according to claim 4, characterized in that one end of the mobile base (23) is fixed with a mobile armrest (26).