CN114848310A - Bed is transported to multi-functional medical negative pressure - Google Patents

Abstract

The application discloses bed is transported to multi-functional medical negative pressure relates to the interim sick bed of hospital and transports sick bed field, including bed body itself, disappears and kills the module, monitor module and elevating movement module. The bed body comprises a bed body, a cover body and a chassis. The sterilizing module adopts plasma sterilization, comprises a plasma generator, a fan, a nitrate alkali module, high-efficiency filtration and active carbon odor removal. The lifting motion module comprises a lifting cover body with four ejector rods, a middle ejector rod lifts the lathe bed, and a back ejector rod lifts the waist. The monitor module comprises a drawer type monitor and an external display. According to the multifunctional medical transfer bed, in the negative pressure transfer mode, the air pressure inside the isolation cabin is smaller than the external atmospheric pressure, so that the disease microorganisms inside the isolation cabin can be effectively prevented from being transmitted to the outside of the isolation cabin through the air; the multifunctional medical transfer bed can be switched from a positive and negative pressure isolation mode to a common bed mode when needed, so that the condition of shortage of bed numbers of medical institutions is improved.

Description

Bed is transported to multi-functional medical negative pressure

Technical Field

The application relates to the field of medical equipment, in particular to a multifunctional medical negative pressure transfer bed.

Background

Although the novel coronavirus pneumonia is accepted as a B-type infectious disease by the infectious disease prevention and treatment law of the people's republic of China, the management of the A-type infectious disease is required, and the isolation requirement on transportation equipment is greatly increased. Meanwhile, in a medical system, especially in a comprehensive large hospital, there are many patients with low immunity, such as burn patients, blood disease patients, trachea and bone marrow transplantation patients, cancer chemotherapy patients, etc., which need to be transported under various complex conditions, for example, from an operating room to a ward immediately after an operation.

In the prior medical practice, for the infected patients such as new crown, etc., the transfer needs negative pressure isolation to prevent various viruses carried by the patients from spreading to the outside of the isolation device, while for the patients with low immunity, the transfer needs positive pressure isolation to prevent various virus microorganisms outside the isolation device from entering the isolation device.

The transfer bed in the prior art is not provided with any isolation device and is only suitable for the transfer of common patients, or the isolation device cannot effectively block the infection path in a hospital, and although the physical partition management of infectious diseases such as Xinguan is already performed in the daily management of a large hospital, the infection power of Ormick virus is very strong, so that the patients with low immunity can enter various channels, elevators and the like in the transfer process, and the risk of infection is very high.

Therefore, those skilled in the art are dedicated to develop a multifunctional medical negative pressure transport bed, which can block the virus transmission path, ensure the efficient isolation effect, and switch the isolation transport bed and the common hospital bed, so as to bring the economy and convenience for the operation and management of the medical institution.

Disclosure of Invention

In view of the above-mentioned defects of the prior art, the technical problems to be solved by the present invention include how to ensure efficient isolation effect and how to realize the switching between the use states of the transfer bed and the general hospital bed.

In order to achieve the purpose, the invention provides a multifunctional medical negative pressure transfer bed which comprises a bed body, an isolation cover and a chassis, wherein the bed body and the isolation cover are combined to form an isolation cabin, a first jacking device is arranged between the bed body and the isolation cover, and the first jacking device is used for lifting the isolation cover.

Furthermore, the first jacking device comprises four jacking rods, and the four jacking rods are positioned at four corners of the bed body.

Further, the isolation hood comprises a first vault and a second vault, wherein the first vault is made of transparent materials and is close to the bed head part of the bed body; the second dome includes an inner layer and an outer layer.

Further, a first gyroscope is arranged between the inner layer and the outer layer of the second vault and used for sensing whether the change of the inclination angle of the isolation hood exceeds a preset value during jacking of the first jacking device.

Furthermore, a second jacking device is arranged between the bed body and the chassis and comprises four jacking rods.

Further, a second gyroscope is arranged in the bed body and used for sensing whether the change of the inclination angle of the bed body exceeds a preset value during the jacking of the second jacking device.

Further, if the inclination angle of the bed body or the isolation hood is larger than the preset value, the absolute stroke of the lifting rod with the most lagging absolute stroke among the four lifting rods is reset to be the average value of the absolute strokes of the other three lifting rods.

Furthermore, the transfer bed further comprises a plasma killing device, the plasma device is installed on the lower surface of the bed body, an air outlet of the plasma killing device is connected with the chassis through a square organ pipe, and an air inlet of the plasma killing device is connected with the isolation cabin through a spring pipe.

Further, the spring tube is configured to heat or cool air flowing therethrough.

Further, the bed body and the isolation cover are connected through a hinge.

According to the multifunctional medical transfer bed, in the negative pressure transfer mode, the air pressure inside the isolation cabin is smaller than the external atmospheric pressure, so that the disease microorganisms inside the isolation cabin can be effectively prevented from being transmitted to the outside of the isolation cabin through the air; in the positive pressure transportation mode, the air pressure at the inner side of the isolation cabin is greater than the external air pressure, so that the disease microorganisms outside the isolation cabin can be effectively prevented from being transmitted to the inner side of the isolation cabin through the air; the multifunctional medical transfer bed can be switched from a positive and negative pressure isolation mode to a common bed mode when needed, so that the condition of shortage of bed numbers of medical institutions is improved.

Drawings

FIG. 1 is a schematic side elevation view of a multi-functional medical transport bed according to the present invention in a positive/negative pressure isolation mode;

FIG. 2 is a schematic diagram of the back side of the multifunctional medical transfer bed in a positive and negative pressure isolation mode according to the present invention;

FIG. 3 is a diagram of the opened state of the isolation cover in the positive and negative pressure isolation mode of the multifunctional medical transfer bed according to the present invention;

FIG. 4 is a diagram of the opened state of the isolation cover in the positive and negative pressure isolation mode of the multifunctional medical transfer bed according to the present invention;

FIG. 5 is a schematic diagram of the front side of the multifunctional medical transfer bed in a normal sickbed mode;

FIG. 6 is a schematic view of the back of the multifunctional medical transfer bed in a normal bed mode;

fig. 7 is a partially enlarged view of the air holes on the inner side surface of the isolation cover of the multifunctional medical transfer bed.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 and 2, the multifunctional medical negative pressure transfer bed comprises a bed body, a chassis and an isolation cover, wherein the bed body is in a rounded rectangle when viewed from top, six surfaces of the bed body are respectively a lying surface (on the bed body), an equipment surface (under the bed body), an operation surface (front side surface of the bed body), an armrest surface (left side surface, right side surface, left side surface is a bed tail, and right side surface is a bed head) and a back side surface of the bed body, and the lying surface of a patient on the bed body and the isolation cover are sealed to form an isolation cabin. The isolation cover is composed of arch tops with two arc-shaped ends, the arch top close to the bedside is transparent, toughened glass or organic glass (transparent acrylic) is selected as a material, the arch top close to the bedside is opaque, and one of plastic materials such as ABS, PE, PP and PVC is selected as a material. A display screen is arranged on the outer side surface of the vault close to the bed tail, and the display screen (auxiliary screen) is used for displaying operation interface images and data of the bed-mounted ECG monitor.

The inner side surface of the vault close to the bed tail is provided with a double-layer structure, wherein the inner side surface is provided with air holes which are arranged in an array way, the inner diameter of the air holes is about 1-2 mm, polluted air in the isolation cabin is extracted to the outside of the isolation cabin through the array air holes (the partial enlarged view of the air holes is shown in figure 7), and the polluted air in the isolation cabin is sucked from the array air holes on the inner side surface of the vault, enters a plasma killing device arranged on the bed body equipment surface through a plurality of spring pipes to be killed and then is discharged from a chassis exhaust port. The plasma sterilizing device arranged on the equipment surface of the bed body can also be used for sterilizing polluted air from the outside of the transfer bed, and the output clean air is conveyed between the double-layer structures through the plurality of spring pipes and enters the isolation cabin through the air holes on the inner side surface of the isolation cover.

The chassis is connected with the equipment face of the bed body, the equipment on the upper portion of the chassis comprises a whole direct current power supply (battery) and a bed body lifting device, the bed body lifting device comprises four jacking rods driven by a motor, the four jacking rods are located between the bed body and the chassis and relatively lean against the central inner side, the relative positions are rectangular, and when the jacking device works, the height of the bed body can be stably adjusted, so that patients with different heights can get on and off the bed conveniently.

The whole shape of the chassis is an X shape embedded in a rounded rectangle, and four endpoints of the lower part of the chassis are provided with four universal wheels with a braking function. The chassis is wrapped up along the X shape and is had the rail, and rail upper portion is connected with the equipment face of the bed body, and the lower part of rail is connected with the chassis, and the upper portion and the lower part of rail have overlap portion, can laminate the cooperation and slide each other, and bed body elevating gear is at the during operation, and the bed body rises or descends to any height and all can guarantee the closure and certain gas tightness of rail. The rear side surfaces of the chassis and the bed body are protruded out of the fence and provided with a protective sleeve for accommodating a plurality of spring tubes of the plasma killing device.

Be provided with drawer type ECG monitor device at the operation surface of the bed body, when needs use ECG monitor function, can open the drawer, be connected to the disease with a plurality of sensors, the connecting wire of sensor passes through the drawer and is connected patient with the through-hole of bed body patient lying face, so when transporting the bed needs to remove, can temporarily close the drawer, do not influence ECG monitor device's normal work, and meanwhile, the demonstration content of ECG monitor device main screen switches to the display screen (vice screen) that the cage is close to the tailstock on.

The part of the bed body operation surface close to the bed head is provided with a display screen, and the display screen displays the working state of the transfer bed, including the temperature and humidity of the isolation cabin, the air pressure, the pressure difference between two ports of the plasma sterilizing device, the accumulated working time and the like. A maintenance window of the plasma killing device is arranged on the fence at the lower part of the operating surface of the bed body, and when the pressure difference between the two openings exceeds a preset value, the filter in the maintenance window is invalid and needs to be replaced.

An oxygen cylinder is arranged at the X-shaped part of the chassis close to the bed head or the bed tail, and an oxygen pipeline enters the isolation cabin through the bed body equipment surface and the patient lying surface. The part of the patient lying surface of the bed body close to the bed head is provided with a movable part, the movable part comprises a lifting plate and a telescopic rod driven by a motor, when the telescopic rod is completely contracted, the lifting plate is embedded into the lying surface of the patient, when the telescopic rod is completely extended, the lifting plate can be jacked up, so that the lifting plate and the lying surface of the patient form an included angle of 30-60 degrees, and the movable part has the function of assisting the patient to lift the upper half body or sit up.

As shown in fig. 3 and 4, when the transfer bed is in the positive pressure or negative pressure isolation mode, the lying surface of the patient on the bed body and the isolation cover are sealed to form an isolation cabin, a frame with the same shape as the bed body is arranged at the connection part of the isolation cover and the bed body, and the isolation cover is connected with the frame through a hinge at the rear side surface of the bed body. The sealing between the frame and the isolation cover is realized by an inflated rubber strip. When a patient needs to get on or off the bed, the isolation cover can rotate 90-150 degrees along the axis of the hinge and then is opened.

As shown in fig. 5 and 6, four lifting rods are arranged between the frame of the isolation hood and the lying surface of the bed body, the frame and the isolation hood can be lifted together by the four lifting rods synchronously, and at the moment, the transfer bed is switched from a positive and negative pressure isolation mode to a common sickbed mode. In the normal sickbed mode, the plasma killing device and the display on the isolation cover are in the state of forbidding opening.

When the transfer bed is switched into a common sickbed mode from a positive and negative pressure isolation mode, the frame and the isolation cover are lifted to a certain height of about 80-100 cm together through the four lifting rods, and because the lifting or descending speeds of the four lifting rods are not completely the same, the frame and the isolation cover can deform to a certain degree when lifting or descending, and the frame and the isolation cover can be damaged when the deformation degree is large. Similarly, the same problem occurs when four lifting rods between the base plate and the bed body move up and down on the moving bed body. Therefore, in the present embodiment, the gyroscopes are respectively arranged between the inside of the bed body and the inner layer and the outer layer of the opaque vault of the isolation cover, and can detect the inclination degree of the isolation cover and the bed body relative to the initial state, if the inclination degree is greater than a preset value (e.g. 5 °), the four lifting rods stop moving, which rod of the four lifting rods moves behind the other three rods is determined by the absolute stroke of the lifting rods, and then the absolute stroke of the rod is reset to the average value of the absolute stroke of the other three rods, so as to correct the deformation of the isolation cover or the bed body, then the actions of the four lifting rods are continued, and if the inclination exceeding the threshold value occurs again, the above steps are repeated.

In order to ensure the life safety and comfort of the patient in the isolation cabin, various sensors such as a temperature sensor, a humidity sensor, an air pressure sensor, an air quality sensor and the like are arranged in the isolation cabin, wherein the temperature sensor is arranged at the bed head of the lying surface of the patient in the bed body, and the temperature sensor is linked with a temperature control unit of the plasma killing device and can change the temperature of the air input into the isolation cabin; the spring tube connected with the plasma killing device is configured to heat or cool air passing through the pipeline, and the spring of the metal material in the spring tube can be used as a heating wire or a cooling wire. The humidity sensor is linked with a dehumidifying device arranged on the chassis, so that the humidity change of the air input into the isolation cabin can be stabilized within a preset value (such as 5 percent); the air pressure sensor is arranged on the inner side of the double-layer vault of the isolation hood and is linked with the fan of the plasma killing device, so that the air pressure change of the isolation cabin can be stabilized within a preset value (such as 5-10 Pa); the air quality sensor is arranged at the bed head of the lying surface of a patient in the bed body, and the air quality sensor is linked with the fan of the plasma sterilizing device, so that the change quantity of the number of particles in the air of the isolation cabin can be stabilized within a preset value (such as 10).

In order to keep the relative stability of air in the inner space of the isolation cabin in a common mode and avoid external interference, a vertical curtain is arranged between the bed body and the raised frame and the isolation cover, magnetized ferromagnetic objects are arranged on the upper and lower edges of the vertical curtain for improving the sealing effect, and the ferromagnetic objects are strip-shaped and can be attached to the bed body, the frame and the isolation cover to the greatest extent. Set up a plurality of circular sucking disc formula electromagnetic locks in the inboard of the bed body and frame, the inside cylinder iron and the copper coil that contains of electromagnetic lock, the copper coil is placed between cylinder iron core and shell, lets in the direct current in the coil, produces magnetic field around the coil, and the iron core is magnetized in the produced magnetic field of coil inside, and at this moment the iron core just can produce stronger suction to the ferromagnetic strip on the curtain that hangs down, and the direct current removes the back, and suction disappears naturally, and it is very convenient and laborsaving to take off the curtain that hangs down at this moment. In another implementation of the invention, the electromagnetic lock can also be a mechanical spring switch with a bolt driven by electromagnetic force, when the curtain is required to be hung, only the mechanical force of the spring needs to be overcome, and when the curtain is required to be removed, the electromagnetic lock receives an instruction to drive the bolt to open.

The contact surfaces between the isolation cover and the frame and between the frame and the bed body are provided with sensors which can be infrared sensors or capacitance sensors and can detect limbs or bodies exposing skin, when the detection value of the sensors is larger than a set threshold value, the clamping condition can be judged, and the lifting mechanism needs to stop immediately or do a small amount of reverse actions. In another embodiment of the invention, a movable mechanical structure is arranged on the contact surface between the isolation cover and the frame and between the frame and the bed body, the mechanical structure is driven by a spring, namely when a clamping condition occurs, the mechanical structure is stressed to cause the spring to deform, and an electronic contact connected with the mechanical structure is triggered, so that the clamping condition is judged. In other embodiments of the invention, it may also be determined whether a clamp is present by observing the abnormal current of the jacking rod of the jacking mechanism (indicating limited movement) or by observing the deflection angle indicated by the gyroscope.

It should be understood that the technical solutions and concepts of the present invention may be equally replaced or changed by those skilled in the art, and all such changes or substitutions should fall within the protection scope of the appended claims.

Claims (10)

1. The utility model provides a multi-functional medical negative pressure transport bed, a serial communication port, including the bed body, cage and chassis, the bed body with the cage is merged and is constituteed the cofferdam, the bed body with dispose first jacking device between the cage, first jacking device is used for the lifting the cage.

2. The multifunctional medical negative pressure transfer bed of claim 1, wherein the first jacking device comprises four jacking rods, and the four jacking rods are positioned at four corners of the bed body.

3. The multifunctional medical negative pressure transfer bed of claim 1, wherein the isolation cover comprises a first dome and a second dome, the first dome is made of transparent material and is close to the bed head part of the bed body; the second dome includes an inner layer and an outer layer.

4. The multifunctional medical negative pressure transfer bed of claim 3, wherein a first gyroscope is disposed between the inner layer and the outer layer of the second dome, the first gyroscope being configured to sense whether a change in an inclination angle of the shielding enclosure during jacking of the first jacking device exceeds a preset value.

5. The multifunctional medical negative pressure transfer bed of claim 1, wherein a second jacking device is arranged between the bed body and the chassis, and the second jacking device comprises four jacking rods.

6. The multifunctional medical negative pressure transfer bed according to claim 5, wherein a second gyroscope is arranged in the bed body, and the second gyroscope is used for sensing whether the change of the inclination angle of the bed body during the jacking of the second jacking device exceeds a preset value.

7. The multifunctional medical negative pressure transfer bed according to claim 4 or 6, wherein if the inclination angle of the bed body or the isolation hood is larger than the preset value, the absolute stroke of the lifting rod with the most lagging absolute stroke among the four lifting rods is reset to the average value of the absolute strokes of the other three lifting rods.

8. The multifunctional medical negative pressure transfer bed of claim 1, further comprising a plasma killing device, wherein the plasma device is mounted on the lower surface of the bed body, an air outlet of the plasma killing device is connected with the chassis through a square organ pipe, and an air inlet of the plasma killing device is connected with the isolation cabin through a spring pipe.

9. The multi-functional medical negative pressure transport bed of claim 8, wherein the spring tube is configured to heat or cool air flowing therethrough.

10. The multifunctional medical negative pressure transfer bed of claim 1, wherein the bed body and the isolation cover are connected by a hinge.

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