Medical goggles storage and disinfection center and using method thereof
Technical Field
The invention relates to the field of medical instruments, in particular to a medical goggles storage and disinfection center and a using method thereof.
Background
Medical goggles are common medical protective articles and generally have the following purposes: 1. when diagnosis and treatment and nursing operations are carried out, the device can protect patients from splashing of blood, body fluid, secretion and the like; 2. protection is performed when the patient is in close contact with the infectious disease patient spread by the spray.
In order to prevent the infection of the new coronavirus to the medical care personnel or the protection personnel, the medical goggles are worn by the medical care personnel or the protection personnel who are in contact with the new coronavirus infectors more, so as to prevent the new coronavirus from being infected through the cornea. Generally, the medical goggles are not disposable, and are more likely to be repeated for a plurality of times especially when epidemic outbreaks and medical substances are in short supply. The medical goggles need to be disinfected after being used, and can be used next time after being disinfected. The disinfection process generally comprises the steps of firstly spraying or soaking goggles with alcohol, disinfectant or soapy water and the like, and then wiping the goggles clean. However, in case of high epidemic or special cases of epidemic diseases, the whole disinfection process should be avoided as much as possible from direct contact with hands to avoid virus infection, and the disinfected goggles should be sealed to avoid secondary pollution.
Therefore, for the disinfection of the medical goggles, how to disinfect the medical goggles in a non-contact way and effectively seal the medical goggles after disinfection is very important when epidemic situations are high or infectious diseases are epidemic.
Disclosure of Invention
Aiming at the defects in the prior art, the invention discloses a medical goggles storage and disinfection center and a using method thereof, wherein the medical goggles storage and disinfection center comprises a storage box assembly and a liner assembly, and the storage box assembly comprises a second cavity and a third cavity; be provided with antiseptic solution storage device in the third cavity, be provided with the pivot in the second cavity, courage body subassembly is deposited in the second cavity and rigid coupling in pivot, and goggles can be deposited to its inside cavity, places the goggles in courage body subassembly during the use, then starts antiseptic solution storage device, makes the antiseptic solution atomizing for the aerosol granule and lets in courage body subassembly through the pivot to accomplish the disinfection to the goggles.
The invention is realized by the following technical scheme:
a medical goggles storage and disinfection center comprises a storage box assembly and a liner assembly; the storage box assembly comprises a second cavity and a third cavity;
a rotating shaft is fixedly arranged in the second cavity; an axial hole is arranged in the rotating shaft, and a second valve hole penetrating through the axial hole of the rotating shaft is arranged on the circumferential surface of the rotating shaft; a disinfectant storage device is arranged in the third cavity, and an atomization device is arranged in the disinfectant storage device;
the liner body assembly is annular and penetrates through the rotating shaft, and can rotate around the rotating shaft after external force is applied; an annular storage cavity which can be opened and closed is arranged in the liner body assembly, medical goggles to be disinfected and stored are hung in the annular storage cavity, and an interface which is communicated with the storage cavity is arranged on the inner wall of the liner body assembly close to the rotating shaft;
the interface is arranged at a position opposite to the second valve hole on the rotating shaft, and the axial hole of the rotating shaft is communicated with the storage cavity of the liner assembly through the interface and the second valve hole;
be equipped with first cavity and second cavity in the antiseptic solution storage device, inject the antiseptic solution in first cavity, place atomizing device in the second cavity, atomizing device can be with the antiseptic solution atomizing in the first cavity for the aerosol granule to axial hole, second valve opening and interface in the pivot let in courage body subassembly.
The disinfectant storage device, the rotating shaft and the liner assembly are sequentially connected through pipelines to form all or part of a disinfection pipeline.
In the medical goggles storage and disinfection center, the circumference of the rotating shaft which is matched with the liner assembly in a penetrating way is provided with annular grooves which are arranged in pairs; the inner wall of the liner body assembly is provided with annular convex strips matched with the annular grooves in pairs, the interface is arranged between the paired annular convex strips, and the interface is an annular cut arranged on the inner wall of the liner body assembly; the inner container body assembly and the rotating shaft are matched with each other through the annular groove and the annular convex strip to form clamping, the inner container body assembly is axially limited on the rotating shaft, and the inner container body assembly can rotate around the rotating shaft in the circumferential direction.
Further, a plurality of second valve holes are arranged along the axial direction of the rotating shaft; the number of the liner body components corresponds to that of the second valve holes, a plurality of liner body components are arranged along the axial direction of the rotating shaft, and a second valve is inserted in each second valve hole; the second valve is an electromagnetic valve, and the plurality of second valves are arranged in parallel.
The disinfectant storage device, the rotating shaft, the second valve and the liner assembly are sequentially connected through pipelines to form a disinfection pipeline; the plurality of liner assemblies are also connected in parallel.
Preferably, in the medical goggles storage and disinfection center, the bladder assembly comprises a bladder and a rotating arm; the storage cavity is arranged in the liner body; a plurality of through rotating arm accommodating grooves are formed in the periphery of the liner body; the shape of the rotating arm is matched with that of the rotating arm accommodating groove, and the rotating arm is hinged with one end of the rotating arm accommodating groove; a hanging part is arranged on the inner side of the rotating arm;
the rotating arm can be opened and closed by rotating relative to the liner body, and the hanging part is positioned in the liner body in a closed state.
The medical goggles storage and disinfection center is also provided with an air pump in the third cavity; the air pump and the disinfectant storage device are arranged in parallel; the air pump leads dry air into the storage cavity of the liner assembly through the axial hole on the rotating shaft and the second valve hole on the liner assembly.
The air pump, the rotating shaft and the liner assembly are sequentially connected through pipelines to form all or part of the drying pipeline.
Further, still be equipped with the heater between air pump and pivot, the axial hole of air pump, heater, pivot and the storage chamber of courage body subassembly communicate in proper order and constitute dry pipeline, and the heater heats the air that the air pump let in, then lets in hot-blastly in the storage chamber of courage body subassembly through dry pipeline, carries out the drying to the goggles.
In a more preferable embodiment, the medical goggles storage and disinfection center further includes a plurality of ultraviolet lamps disposed in the second cavity, the ultraviolet lamps are hung on an inner wall of the second cavity, the bladder body and the rotating arm are made of transparent materials, and ultraviolet light from the ultraviolet lamps can be projected into the storage cavity of the bladder body assembly.
The storage box assembly of the medical goggles storage and disinfection center further comprises a first cavity; a second through hole penetrating through the top wall is formed in the top wall of the second cavity; the second cavity is positioned between the first cavity and the third cavity; the second through hole enables the first cavity and the second cavity to be communicated;
the top wall of the first cavity is provided with a first exhaust hole penetrating through the top wall, an exhaust fan is arranged at a position corresponding to the first exhaust hole, the exhaust fan can be arranged at a position right opposite to the second through hole, and air in the second cavity can be pumped out of the first cavity through the exhaust fan, the first exhaust hole and the second through hole;
the medical goggles storage and disinfection center further comprises a control module, and the exhaust fan, the ultraviolet lamp, the second valve, the atomizing device, the air pump and the heater are all electrically connected with the control module.
The medical goggles storage and disinfection center also comprises a sealing door, wherein the sealing door is movably connected to the storage box assembly and is positioned at the cavity opening of the second cavity; the two edges of the inner side surface of the rotating arm are additionally provided with magnetic sealing strips, the joint of the liner body and the rotating arm is also additionally provided with a magnetic block, and the rotating arm and the liner body can form magnetic force joint through the magnetic sealing strips and the magnetic block.
The invention also provides a use method of the medical goggles storage and disinfection center, and the medical goggles storage and disinfection center comprises the following steps:
step S100: placing the goggles in the bladder assembly;
step S200: the atomizing device, the ultraviolet lamp and the second valve are started through the control module, atomized disinfectant aerosol particles are introduced into the liner assembly, and the first time is kept;
step S300: the atomization device is closed through the control module, the air pump and the heater are started, hot air is introduced into the liner assembly, and the second time is kept;
step S400: the exhaust fan is started through the control module, the gas in the second cavity is pumped out, the third time is continued, the disinfection and drying of the medical eye lens are completed, and then the power supply is turned off.
Compared with the prior art, the invention has the following advantages and beneficial effects:
according to the medical goggles storage and disinfection center provided by the invention, the medical goggles are placed in the storage cavity of the liner assembly, the medical goggles to be disinfected after being used are placed in the storage cavity of the liner assembly, then the disinfectant atomization device is started, so that the disinfectant is atomized into aerosol particles and is introduced into the liner assembly through the axial hole of the rotating shaft, and the disinfection of the medical goggles is completed. The medical goggles of treating disinfection can be placed in batches to this application device can be integrated to can accomplish the disinfection to medical goggles and the storage after the disinfection, and begin at whole disinfection flow and take out the in-process that medical goggles used until next time, can not take place the direct contact with the goggles, better guarantee medical personnel's safety and improved the convenient degree of use.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a close-up view of the overall structure of one embodiment of the present invention;
FIG. 2 is an open view of the overall structure of one embodiment of the present invention;
FIG. 3 is a block diagram of a storage compartment assembly in accordance with one embodiment of the present invention;
FIG. 4 is an exploded view of the storage bin assembly of one embodiment of the present invention;
FIG. 5 is a diagram of a first chamber configuration in accordance with one embodiment of the present invention;
FIG. 6 is a diagram of a second chamber configuration in accordance with one embodiment of the present invention;
FIG. 7 is an enlarged view taken at I of FIG. 6 according to one embodiment of the present invention
FIG. 8 is a third chamber block diagram according to one embodiment of the present invention;
FIG. 9 illustrates a bladder assembly and a storage compartment assembly in accordance with one embodiment of the present invention;
FIG. 9a is an enlarged view at IIa of FIG. 9 in accordance with one embodiment of the present invention;
FIG. 10 is a view from the A-A of FIG. 9 in accordance with one embodiment of the present invention;
FIG. 11 is a piping system diagram of one embodiment of the present invention;
FIG. 12 is an enlarged view at II of FIG. 9 of one embodiment of the present invention;
figure 13 is a diagram of the internal structure of the bladder assembly in accordance with one embodiment of the present invention;
figure 14 is a closed state view of the bladder assembly in accordance with one embodiment of the present invention;
figure 15 is an open view of the bladder assembly in accordance with one embodiment of the present invention;
FIG. 16 is an enlarged view at III of FIG. 15 of one embodiment of the present invention;
FIG. 17 is a flow chart of a method of use of one embodiment of the present invention.
Reference numbers and corresponding part names in the drawings:
1-storage box component, 11-first cavity, 111-exhaust fan, 112-first exhaust hole, 12-second cavity, 121-rotating shaft, 122-ultraviolet lamp, 123-second through hole, 124-second valve, 125-liquid storage tank plate, 13-third cavity, 131-disinfectant storage device, 131 a-atomization device, 132-air pump, 133-heater, 2-closed door, 3-liner component, 31-liner, 32-rotating arm, 321-suspension part and 33-interface.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
In some embodiments, a medical eyewear storage and sterilization center, as shown in fig. 1 and 2, includes a storage compartment assembly 1, a closure door 2, and a bladder assembly 3.
As shown in fig. 3 and 4, the storage box assembly 1 includes a first cavity 11, a second cavity 12 and a third cavity 13 stacked from top to bottom in sequence, and the stacking manner of the three components may be that a partition board is transversely disposed in the storage box assembly 1 to divide the storage box assembly into three accommodating cavities from top to bottom, or that each cavity is independently manufactured and finally welded or bolted into a whole.
As shown in fig. 5, the first chamber 11 includes an exhaust fan 111 and a first exhaust hole 112. The exhaust fan 111 is vertically arranged in the first cavity 11, the tail part of the exhaust fan 111 is fixed on the top wall of the first cavity 11, and the head part of the exhaust fan 111 faces downwards and points to the second cavity 12. The first exhaust hole 112 is fitted to the top wall of the first chamber 11 to communicate with the first chamber 11 and face the exhaust fan 111.
As shown in fig. 6, a rotating shaft 121 is disposed inside the second cavity 12; the rotating shaft 121 passes through the bottom wall of the second cavity 12 as shown in fig. 9, and the bottom of the rotating shaft 121 is fixed inside the bottom wall of the third cavity 13, and the rotating shaft 121 does not rotate in the second cavity 12. The rotating shaft 121 is hollow, a plurality of second valve holes penetrating through the hollow axial hole of the rotating shaft 121 are formed in the circumferential surface of the rotating shaft 121, the second valve holes are communicated with the hollow shaft hole of the rotating shaft 121, and according to working experience, a second valve 124 is inserted into each second valve hole of the rotating shaft 121. The second valve 124 is preferably a solenoid valve which is easy to control and can control whether the atomized sterilizing liquid retained on the rotating shaft 121 flows into the outside.
The top wall of the second cavity 12 is provided with a second through hole 123. As shown in fig. 4 and 9, the second through hole 123 is located right above the rotating shaft 121 and right below the exhaust fan 111. Like this, the cooperation of exhaust fan 111 and first exhaust hole 112 is used, when starting exhaust fan 111, can be with the air or the aerosol granule that fill in second cavity 12 space environment, inhales first cavity 11 through second through-hole 123 to discharge to the external world through first exhaust hole 112. As shown in fig. 8, a disinfectant storage device 131 and an air pump 132 are arranged inside the third cavity 13; an atomizing device 131a is disposed in the disinfecting liquid storage device 131, the disinfecting liquid storage device 131 is used for storing liquid disinfecting liquid such as 84 disinfecting liquid, and the atomizing device 131a can atomize the disinfecting liquid into aerosol particles. As shown in fig. 6 and 7, in order to facilitate timely refilling of the disinfectant storage device 131, a tank plate 125 is further disposed on the bottom wall of the second chamber 12, the disinfectant storage device 131 faces the tank plate 125, and when the disinfectant stored in the disinfectant storage device 131 is insufficient, the tank plate 125 can be opened to timely refill the disinfectant storage device 131 with the disinfectant.
As shown in fig. 9a, the disinfectant storage device 131 is provided with a first chamber and a second chamber inside, for atomizing the disinfectant. The first chamber is used for injecting disinfectant; the second chamber is located at the upper part of the disinfectant storage device 131 and is used for placing the atomizing device 131a, and the rotating shaft 121 is connected to the second chamber through a pipeline. The bottom of the atomizing device 131a passes through the bottom of the second chamber to reach the first chamber, and the disinfectant enters the first chamber from the notch where the liquid storage tank plate 125 is located, is atomized by the atomizing device 131a and enters the second chamber, and then enters the rotating shaft 121 from the second chamber through the pipeline connection. Atomizing device 131a adopts the atomizing subassembly that prior art was commonly used, and it is no longer repeated here, and atomizing device 131a begins to carry out the atomizing of antiseptic solution after connecting the commercial power and opening switch through the power cord that this application was attached. As shown in fig. 12 to 15, the bladder member 3 has a ring-shaped structure and has a storage chamber having a ring shape. As shown in fig. 9 and 12, the rotating shaft 121 has annular grooves on the outer circumference thereof, which are arranged in pairs in the axial direction. The inner peripheral surface of the liner body component 3 is provided with annular convex strips which are arranged in pairs along the axial direction and matched with and complemented with the annular groove in shape. The inner periphery of the liner component 3 is provided with an interface 33; the port 33 is located between the pair of annular ribs and is an annular notch formed on the inner peripheral surface of the bladder member 3 as shown in fig. 13. According to the working experience, in order to store the goggles as much as possible, three groups of annular grooves are arranged on each rotating shaft 121, and three container assemblies 3 are sleeved on each rotating shaft 121 through the concave-convex matching of the annular grooves and the annular convex strips. The liner assembly 3 is axially fixed to the rotating shaft 121 and can rotate circumferentially around the rotating shaft 121. Wherein the interface 33 is opposite to the second valve 124, so that the inner cavity of the rotating shaft 121 is communicated with the inner part of the container assembly 3. Like this, courage body subassembly 3 can realize the access of goggles through opening and shutting of self, and courage body subassembly 3 can revolute the design of pivot 121 circumferential direction, can make things convenient for the goggles that the operator position access needs nearby, increases the convenient degree of device. It should be noted here that the liner member 3 is a thin-walled structure made of metal plate, so that it has a certain elasticity, and when it is installed, the liner member 3 is sleeved on the outer circumference of the rotating shaft 121, and at this time, the liner member 3 is elastically deformed, so that the inner circumferential surface of the liner member 3 is stretched, and when it reaches the annular groove, it returns to its original shape, so that the liner member 3 is clamped by the annular protrusion and the annular protrusion of the rotating shaft 121. After the annular convex strip that sets up on courage body subassembly 3 block in the annular groove that sets up on pivot 121, annular convex strip and annular groove are clearance fit promptly to make courage body subassembly 3 can rotate around pivot 121 on pivot 121. Meanwhile, the opening and closing manner of the liner assembly 3 is many, for example, the liner assembly 3 is made into an up-and-down opening and closing design of an annular cavity and an annular cavity cover, and in the embodiment, as shown in fig. 14 to 16, it is preferable that the liner assembly 3 is configured to include a liner 31 and a rotating arm 32. The storage cavity is arranged in the liner body 31; the outer contour surface of the liner body 31 is provided with 6 through rotating arm accommodating grooves in an annular array; the swivel arm 32 is complementary in shape to the swivel arm receiving slot and forms a hinge with the bottom end of the swivel arm receiving slot. A hanging part 321 is arranged inside the rotating arm 32; the hanging portion 321 can be any structure capable of hanging goggles, such as a hook or a torsion spring clip, etc. hung on the rotating arm 32. The tumbler 32 can open and close through rotatory realization relative courage body 31 to make the portion 321 that hangs be located courage body 31 inside at the closed condition, for more convenient realization is opened and closed, can install the magnetism sealing strip additional at the both edges of tumbler 32 medial surface, courage body 31 also installs magnetic material with tumbler 32 laminating department additional, like this, tumbler 32 and courage body 31 with form the laminating of magnetic force, simple and convenient. In conclusion, the goggles stored in the liner assembly 3 are stored in a hanging manner, so that all contour surfaces on the goggles can be kept in contact with atomized disinfectant, and the disinfection and sterilization of the goggles are facilitated; meanwhile, by matching with the rotation design of the container assembly 3 relative to the rotating shaft 121, an operator can store goggles nearby more easily.
As shown in fig. 9, 11 and 12, the disinfecting liquid storage device 131, the rotating shaft 121, the second valve 124 and the container assembly 3 are sequentially connected by pipelines to form a disinfecting pipeline; the second valves 124 are connected in parallel, and the bladder assemblies 3 are also connected in parallel. As shown in fig. 10 and 11, the air pump 132, the rotating shaft 121 and the bladder assembly 3 are sequentially connected by pipes to form a drying pipe; the air pump 132 and the disinfectant storage device 131 on the same rotating shaft 121 are connected in parallel. During the use, atomizing device 131a that sets up in antiseptic solution storage device 131 atomizes the antiseptic solution into aerosol particle, then lets in courage body subassembly 3 through the disinfection pipeline, makes to be full of the atomizing antiseptic solution in the courage body subassembly 3 to finally realize the disinfection to the goggles immersive. The second valve 124 is designed to control the atomized disinfectant in the rotating shaft 121 to be introduced into different gallbladder assemblies 3 according to the requirement, so as to avoid the waste of disinfectant and improve the controllability of the device.
After the disinfection is finished, the disinfectant storage device 131 is closed, the air pump 132 is opened, the air pump 132 generates air flow and is introduced into the liner assembly 3 through the drying pipeline, so that air pressure difference is formed between the inside and the outside of the liner assembly 3, atomized disinfectant in the liner assembly 3 is finally replaced to the outside of the liner assembly 3 through a gap between the liner assembly 3 and the rotating shaft 121, and accordingly the atomized disinfectant is discharged and air-dried on residual liquid on the surface of goggles. It should be noted that, as shown in fig. 12, a gap between the bladder assembly 3 and the rotating shaft 121 exists on the circumferential surface of the rotating shaft 121, and the gap is small, so that the atomized disinfectant in aerosol state is not easy to be discharged during operation, but when disinfection is finished, and air is introduced into the bladder assembly 3 through the air pump 132 and the drying pipeline, the air pump 132 generates sufficient power to make the bladder assembly 3 form sufficient air pressure difference, so that the atomized disinfectant can be discharged under the action of external force, and finally the goggles are dried. Meanwhile, in order to accelerate the drying process, as shown in fig. 8, a heater 133 is further disposed between the air pump 132 and the rotating shaft 121, that is, the air pump 132, the heater 133, the rotating shaft 121 and the bladder assembly 3 are sequentially connected by a pipeline to form a drying pipeline, the heater 133 heats air introduced by the air pump 132, and then hot air is introduced into the bladder assembly 3 through the drying pipeline, so that the goggles are dried, and the drying efficiency is improved.
After the drying is finished, the exhaust fan 111 is turned on, and the atomized disinfectant which is displaced outside the liner assembly 3 and is located in the second cavity 12 is sucked into the first cavity 11 and finally discharged from the first exhaust hole 112. Meanwhile, a device such as a desiccant or an activated carbon net may be added to the exhaust fan 111 and the first exhaust hole 112 to adsorb moisture in the gas before being exhausted.
In some embodiments, in order to integrate and access more goggles as much as possible, as shown in fig. 1 to 3, three rotating shafts 121 are arranged in the second cavity 12 side by side, and the second cavity 12 is divided into three independent chambers by vertically arranged vertical partition plates between adjacent rotating shafts 121, and the rotating shafts 121 are respectively stored in each chamber; the 1 disinfection solution storage device 131, the air pump 132 and the heater 133 which correspond to the first disinfection solution storage device are respectively arranged in three rows and are positioned in the third cavity. Each rotating shaft 121 is respectively provided with three liner assemblies 3, so that more goggles can be stored, and the use value of the device is improved.
In some embodiments, as shown in fig. 1 and 2, in order to avoid that the atomized disinfection solution is introduced into the atmosphere without being treated and the external pollution sources such as dust and the like are prevented from entering the second cavity 12 during the disinfection and drying processes, the device of the present application is further provided with three sealing doors 2, wherein the three sealing doors 2 are respectively located at the cavity openings of the independent cavities in the second cavity 12 and hinged to the cavity wall of the second cavity 12 and the vertical partition plate vertically arranged on the second cavity 12, so that the sealing doors 2 can be opened and closed in a rotating manner, the sealing of the inner cavity of the second cavity 12 is finally realized, and the atomized disinfection solution is prevented from being introduced into the atmosphere and the external pollution sources during the disinfection and drying processes.
In some embodiments, the second chamber 12 is further provided with an ultraviolet lamp 122, the ultraviolet lamp 122 is hung on the inner wall of the second chamber 12 and can be opened simultaneously during the disinfection process, so as to cooperate with the atomized disinfection solution to achieve a better sterilization effect on the goggles. It should be noted that, due to the arrangement of the ultraviolet lamp 122, both the container 31 and the rotating arm 32 should be made of transparent materials, so that the ultraviolet lamp 122 can be projected into the container assembly 3.
For convenience of operation and use, the apparatus of the present application is further provided with a control module (not shown), and the exhaust fan 111, the ultraviolet lamp 122, the second valve 124, the atomizing device 131a, the air pump 132 and the heater 133 are electrically connected to the control module, and the operation of these electrical components is controlled by the control module.
The application mode of the device is shown in fig. 17:
step S100: the closing door 2 is opened and the turning arm 32 is opened, the goggles are placed in the bladder assembly 3, and then the turning arm 32 and the closing door 2 are closed.
Step S200: the disinfecting liquid storage device 131 and the second valve 124 at the corresponding positions are opened, the atomized disinfecting liquid aerosol particles are introduced into the container assembly 3 at the corresponding positions, and simultaneously the ultraviolet lamp 122 at the corresponding positions is opened for the first time T1. According to the working experience, the first time T1 is preferably 20-30 minutes.
Step S300: the air pump 132 and the heater 133 are turned on to supply hot air into the bladder assembly 3 for a second time T2. According to working experience, the second time T2 is preferably 10-15 minutes.
Step S400: the exhaust fan 111 is turned on to exhaust the gas in the second chamber 12 for a third time T3. According to working experience, the third time T3 is preferably 10-15 minutes.
The above embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.