Abstract:
Aspects of the present invention provide a method and a remote-controlled system for delivering and applying water, medicines, cleaning solutions to a region of the body that may not otherwise be easily accessible (e.g., to the perianal region). The system is designed to enable the users to relax and enjoy on a bidet seat system that can apply water, medicines, cleaning solutions at a desirable angle that they can control, while the user is in a relatively comfortable and efficacious position for the treatment. The apparatus include a toilet seat assembly, a drying nozzle assembly, a spraying nozzle assembly, and a medicine delivery assembly. A method and apparatus is provided for using and delivering medicine, washing, cleaning, and drying a region of a human body.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    This application claims benefit of U.S. provisional patent application Ser. No. 62/333,152, filed May 6, 2016, which is herein incorporated by reference. 
     
    
     BACKGROUND OF THE INVENTION 
       [0002]    Embodiments of the present invention generally relate to apparatus and system for washing, cleaning, drying, and/or delivering medicine to a region of a human body. More specifically, aspects of the present invention provide a method and apparatus for delivering and applying water, medication, and/or a cleaning solution to a region of the body (e.g., genital or anal area, intimate parts, perianal region) which may be difficult for the user to access and dry the region. 
       DESCRIPTION OF THE RELATED ART 
       [0003]    Bidets and other modern toilet seat systems have been used to spray water and clean private parts of a user using a toilet. The bidet systems are used for washing the genital and anal areas using cleaning water of appropriate temperature sprayed from the center of the bidet system, instead of a toilet paper after relief stool or urination. Originally being developed for washing the pubic area for females, bidet systems have has now been popular among people of all ages and both sexes because it is known to be more hygienic to wash the intimate parts and anus with water instead of paper after relief. In addition, cleansing the pubic/anal regions with water may help to avoid infection and prevent hemorrhoids and other anal disease. Furthermore, it is very effective for women with gynecology diseases. It is also very useful for the elderly or obese people to relieve themselves with great convenience. 
         [0004]    However, most bidets and bidet seat cleaning systems have water spray nozzle located to be positioned near posterior or anal area and thus not suitable for washing and cleaning female anterior private parts. In addition, bidet systems are expensive and need to be pre-installed. Further, the drying mechanisms of most bidets and bidet seat systems are not movable freely or localized to the area that need to be dried. Also, most bidets and bidet seat systems are not equipped with appropriate cleaning solutions or medications that are stored and delivered in mechanisms that can be freely movable or being localized to the area that need to be cleaned. Therefore, there is a need for a convenient, easy to carry wash and clean apparatus for cleaning genital or anal area of a human body. 
       SUMMARY OF THE INVENTION 
       [0005]    The present invention generally includes a method and an apparatus for delivering medicine, washing, cleaning, and drying a region of a human body. In one embodiment, the apparatus includes a toilet seat assembly, a spraying nozzle assembly, a drying nozzle assembly, and a medicine delivery assembly. In another embodiment, a method of using a seat and cover system to deliver a solution to a region of a human body is provided and includes, washing an area of the region with a spraying nozzle assembly of the seat and cover system, cleaning the area of the region with the spraying nozzle assembly of the seat and cover system, drying the area of an drying nozzle assembly of the seat and cover system, and applying the solution onto the area using a medicine delivery assembly of the seat and cover system. 
         [0006]    In still another embodiment, the toilet seat assembly of the invention includes a seat body, a seat housing, a base, and a seat cover. In addition, the spraying nozzle assembly includes one or more spray nozzle units comprising one ore more spray nozzle bodies that are retractable and adapted to deliver a solution to the region of the human body, and a first driving motor being connected to the one or more spray nozzle units and adapted for moving the one ore more spray nozzle bodies in retracting-and-extending motion, wherein the solution is selected form the group consisting of water, a cleaning solution, a barrier spray solution, a medicine-containing solution, and combinations thereof. 
         [0007]    In one aspect, the spraying nozzle assembly further includes one or more steering gears, and a second driving motor being connected to the one or more spray nozzle unit and adapted for moving the one or more spray nozzle units in three-dimensional circular rotational motion. In another aspect, the one or more spray nozzle units of the spraying nozzle assembly includes a first spray nozzle channel adapted to deliver a first solution, and a second spray nozzle channel adapted to deliver a second solution, wherein the first solution is selected form the group consisting of water, a cleaning solution, a barrier spray solution, a medicine-containing solution, and combinations thereof, and wherein the second solution is selected form the group consisting of water, a cleaning solution, a barrier spray solution, a medicine-containing solution, and combinations thereof. 
         [0008]    Further, in one aspect, the first spray nozzle channel is adapted to deliver water to the region of the human body for washing the region, and the second spray nozzle channel is adapted to deliver a cleaning solution to the region of the human body for cleaning the region. In another aspect, the second spray nozzle channel is adapted to deliver a medicine-containing solution to the region of the human body for treating the region. 
         [0009]    In still another aspect, the first spray nozzle channel is connected to a first liquid line to deliver a washing solution to the region of the human body for washing the region, and the second spray nozzle channel is connected to a second liquid line to deliver a cleaning solution to the region of the human body for cleaning the region. IN yet another aspect, the first spray nozzle channel is connected to a first liquid line to deliver a washing solution to the region of the human body for washing the region, and the second spray nozzle channel is connected to a second liquid line to deliver a medicine-containing solution to the region of the human body for treating the region. 
         [0010]    In another embodiment, the medicine delivery assembly of the invention includes one or more medicine storage cartridges and the medicine delivery assembly is adapted to deliver one or more medicine-containing solutions that are stored at the one or more medicine storage cartridges. In yet another embodiment, the medicine delivery assembly is coupled to a spray nozzle channel of the spraying nozzle assembly. 
         [0011]    Further, the medicine delivery assembly of the invention may include one or more driving motors, and a medicine delivery nozzle having a nozzle body that is retractable and is adapted to deliver the one or more medicine-containing solutions to the region of the human body, wherein the medicine delivery nozzle is separated from the spraying nozzle assembly. 
         [0012]    In still another embodiment, the medicine delivery assembly may include one or more medicine base units, each medicine base unit having at least a cartridge unit and at least a cartridges slot, wherein the cartridge slot is adapted to match with a medicine storage cartridge, and wherein the medicine storage cartridge comprises a cartridge cover, a medicine inlet being connected to a medicine storage assembly, and a sensor. In one aspect, the medicine storage assembly includes a medicine storage tank adapted for storing a medicine-containing solution, a tank cover, and a tubing being connected to the medicine inlet of the medicine storage cartridge. In another aspect, the medicine storage assembly may further include a medicine storage element adapted to store one or more medicines to be mixed with water to form into the medicine-containing solution, and a liquid solution indicator adapted to indicate the content level of the medicine-containing solution within the medicine storage tank. 
         [0013]    In yet another embodiment, the apparatus of the invention provides a drying nozzle assembly having one or more drying nozzle units comprising one ore more retractable elements adapted to deliver air at a predetermined temperature to the region of the human body, and a fan connected to the one or more drying units. In one aspect, the drying nozzle assembly further includes a first driving motor being connected to the one or more drying nozzle units and adapted for moving the one ore more retractable elements in retracting-and-extending motion, and a second driving motor being connected to the one or more drying nozzle unit and adapted for moving the one or more drying nozzle units in three-dimensional circular rotational motion. 
         [0014]    In a further embodiment, the apparatus of the invention provides one or more control units adapted to receive a user input and, based on the user input, to direct movements of the first driving motor and the second driving motor and adjust the positions of one or more drying nozzle units within the drying nozzle assembly, wherein the one or more control units is selected from the group consisting of a remote control unit, a touch screen control unit, a joystick type control unit, a hand-held control unit, a steering-wheel type control unit, a built-in control unit adjacent the toilet seat assembly, and combinations thereof. 
         [0015]    Accordingly, a method and apparatus that is easy to carry, easy to be connected to auxiliary parts, and easy to install and use is provided for washing, cleaning, drying, and delivering a medicine to a region of a human body. While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0016]    So that the manner in which the above recited features of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings. It is to be noted, however, that the appended drawings illustrate only typical embodiments of this invention and are therefore not to be considered limiting of its scope, for the invention may admit to other equally effective embodiments. The drawings are not necessarily to scale. The drawings are merely schematic representations, not intended to portray specific parameters of the invention. 
           [0017]      FIG. 1  is a perspective view of an example of a bidet seat system having a toilet seat assembly, a drying nozzle assembly, a spraying nozzle assembly, and a medicine delivery assembly according to embodiments of the invention. 
           [0018]      FIG. 2  illustrates one example of a bidet seat system having a drying nozzle assembly and a spraying nozzle assembly where their movements are controlled by a control unit connected thereto according to embodiments of the invention. 
           [0019]      FIG. 3A  illustrates another example of a bidet seat system having a drying nozzle assembly and a spraying nozzle assembly, and one or more remote control units according to embodiments of the invention. 
           [0020]      FIG. 3B  is a partially enlarged view of a nozzle body and a nozzle jet head opening of the spraying nozzle assembly and a drying nozzle opening of the drying nozzle assembly of  FIG. 3A  and a cross-sectional view of the nozzle body of the spraying nozzle assembly and a nozzle tip portion of the drying nozzle assembly according to embodiments of the invention. 
           [0021]      FIG. 4  shows another example of a bidet seat and cover system having two liquid lines connected to the spraying nozzle assembly according to embodiments of the invention. 
           [0022]      FIG. 5A  is an internal perspective view of one example of a base housing of a toilet seat assembly to illustrate inside views of a spray nozzle assembly and a dry nozzle assembly according to embodiments of the invention. 
           [0023]      FIG. 5B  is a partially enlarged side view of the drying nozzle assembly of  FIG. 5A  according to embodiments of the invention. 
           [0024]      FIG. 5C  is a partially enlarged bottom view of the spray nozzle assembly and the drying nozzle assembly of  FIG. 5A  according to embodiments of the invention. 
           [0025]      FIG. 6  illustrates one example of a dry nozzle assembly being adapted to communicate with a remote control unit according to embodiments of the invention. 
           [0026]      FIG. 7  is an internal perspective view of one example of a base housing of a bidet seat and cover system to illustrate the inside views of a dry nozzle assembly according to embodiments of the invention. 
           [0027]      FIG. 8  is a top view of the bidet seat and cover of  FIG. 7 , showing the three-dimensional rotational movements of a drying nozzle assembly according to embodiments of the invention. 
           [0028]      FIG. 9  is a side view showing one example of a drying nozzle assembly according to embodiments of the invention. 
           [0029]      FIG. 10A  is a perspective view of a prior-art conventional bidet seat system having a bidet toilet seat, a prior-art air vent, and a prior-art actable-only spray nozzle mechanism. 
           [0030]      FIG. 10B  is a partially enlarged view of a prior-art air vent and the prior-art retractable-only spray nozzle mechanism of  FIG. 10A . 
           [0031]      FIG. 11  shows one example of a medicine delivery assembly in conjunction with a spraying nozzle assembly and a drying nozzle assembly as controlled by a control unit remotely according to embodiments of the invention. 
           [0032]      FIG. 12  is an internal perspective view of another example of a base housing of a bidet seat and cover system to illustrate interior views of a spraying nozzle assembly, a drying nozzle assembly, and a medicine delivery assembly, showing more than one suitable medicine base units, medicine storage cartridges, and a medicine delivery nozzle according to embodiments of the invention. 
           [0033]      FIG. 13  illustrates one example of a medicine storage assembly according to embodiments of the invention. 
           [0034]      FIG. 14  illustrates one example of a medicine storage cartridge of a medicine base unit according to embodiments of the invention. 
           [0035]      FIG. 15A  is an internal perspective view of a medicine delivery assembly, showing one example of a medicine delivery nozzle the according to embodiments of the invention. 
           [0036]      FIG. 15B  illustrates vertical movements of the medicine delivery nozzle of the medicine delivery assembly of  FIG. 15A . 
           [0037]      FIG. 15C  illustrates retracting and extending movements of the medicine delivery nozzle of the medicine delivery assembly of  FIG. 15A . 
           [0038]      FIG. 16  illustrates another example of a spray nozzle assembly, a drying nozzle assembly as controlled according to embodiments of the invention. 
           [0039]      FIG. 17  is a flow chart of a method of using the system of the invention according to embodiments of the invention. 
       
    
    
     DETAILED DESCRIPTION 
       [0040]    The present invention generally includes a method and a seat and cover system having a toilet seat assembly, a drying nozzle assembly, a spraying nozzle assembly, and a medicine delivery assembly for delivering and applying water, cleaning solutions, and/or medicines to a region of a human body that may not otherwise be easily accessible (e.g., to the perianal region), as well as washing and drying the region of the human body. In addition, a method of operating the seat and cover system is also provided. 
         [0041]      FIG. 1  shows one example of a bidet seat and cover system, such as a bidet seat system  100 . As shown in  FIG. 1 , the bidet seat system  100  may generally include a toilet seat assembly  200 , a spraying nozzle assembly  300  having a spray nozzle unit  330 , and one ore more control units  340 ,  342 . The bidet seat system  100  can be placed on top of a traditional toilet bowel with fitted sizes and shapes (oval or round). In one example, the toilet seat assembly  200  can be installed to a toilet system by removing any existing seat from a traditional toilet system and replacing a traditional seat with the bidet seat system  100 . In another example, the bidet system  200  may have fastening elements (e.g., screws bolts, velcos, etc.) in its base to be connected to a traditional toilet bowel. 
         [0042]    As shown in  FIG. 1 , the toilet seat assembly  200  includes a seat cover  210 , a base housing  220 , a seat  230  and a base  240 . The seat cover  210  is generally closed to cover the base  240 . During operation or in idle position, the seat cover can be opened and positioned upward, such as being positioned against a water tank. The seat  230  includes a seat body  232  facing upward so that a human subject can sit thereon. 
         [0043]    The base housing  220  and the base  240  are formed to connect the seat cover  210  and the seat  230  together, for example, using one or more hinges such that the seat cover  210  can be opened or closed against the seat  230 . The housing  220  and the base  240  are used generally to house one or more assemblies (e.g., the spraying nozzle assembly  300 , a drying nozzle assembly  600 , and a medicine delivery assembly  400 , etc.) therein. As shown in  FIG. 1 , the spray nozzle unit  330  is adapted to be retractable and can be positioned inside the base housing  220  and extended out in a direction “R” to move in three dimensional rotational direction and in a horizontal plane “H”. The spray nozzle unit  330  positioned near the bottom of the seat body  232  can be adjusted to be retracted back into the base housing  220 . 
         [0044]    In one embodiment, the function and operation of the bidet system  100  is controlled by one or more control units, such as a control unit  342  positioned adjacent to one side of the bidet system  100 , and a controlled unit  340 , which can be positioned at a distance away from the bidet system in a wired or wireless fashion. In  FIG. 1 , two control units  340 ,  342  are configured, where the control unit  342  is positioned to be adjacent the seat body  232  to be closer for a user to control the movements of the spray nozzle unit  330  of the spraying nozzle assembly  300  as well as the temperature and pressure of the spraying liquid spraying from the spray nozzle unit  330 . Alternatively, the control unit  340  may be a remote controlled unit being capable of communicating with the bidet seat system  100 . 
         [0045]    The remote control units  340 ,  342  are adapted to be communicating and directing one or more movements of the spraying nozzle unit  330 . The spray nozzle unit  330  is adapted to jet a solution, such as water or any liquid, a cleaning solution, a barrier spray solution, a medicine-containing solution, and combinations thereof to a localized region (e.g., perianal region) of a human body private part. In one example, the spray nozzle unit  330  is adapted to move in a direction marked as “R” to be extended and retracted in and out. In another example, the spray nozzle unit  330  is adapted to move in a vertical direction marked as “V” to move up and down (e.g., in a Z-direction or a gravitational direction), particularly after the spray nozzle unit  330  has been extended and retracted out. In another example, the spray nozzle unit  330  is adapted to move in a horizontal direction marked as “H” to move left-right, particularly after the spray nozzle unit  330  are extended and retracted out. 
         [0046]    The remote control units  340 ,  342  can cause the user to operate the operation button reliably. The remote control units can provide “hands-free” options, therefore avoiding some discomfort or embarrassment from the user. For example, control units  340  can be mounted on the wall adjacent to or far away from the toilet. The control unit  340  has a screen and a keyboard with pushbuttons for turning the water or air on and off, for controlling the air temperature, etc. The water flow level may be selected by appropriate command through the remote control unit. The remote control unit is used to transit appliance control data to the bidet seat system  100 . Inside the bidet seat system  100 , a decoder decodes the transmitted data. When the data is decoded, the bidet seat system  100  responds to from an appliance control signal suitable for controlling the spraying nozzle assembly  300  and other parts within the bidet seat system  100 . As another example, control units  342  can be mounted on the base  240 . It enables a user to directly control the bidet seat system  100 . 
         [0047]      FIG. 2  shows one example of the spraying nozzle assembly  300  and the drying nozzle assembly  600 , where their movements are controlled by a control unit  340 A connected thereto. In one embodiment, the spraying nozzle assembly  300  includes a driving motor unit  320  to direct and drive the movements of the spray nozzle unit  330 . The driving motor unit  320  is connected to a motor  324 . 
         [0048]    In another embodiment, the spray nozzle unit  330  includes one or more first spray nozzle body  332  and one or more second spray nozzle body  334 , which are configured to function together and adapted to be retractable (as shown in a “R 1 ” direction for extending and retracting movements) and movable in three-dimensional rotational motion, as driven by one ore more driving motors (such as a driving motor  324 , etc.) and steering gears (such as steering gears  321 ,  323 , etc.) for delivering a solution therein. 
         [0049]    Inside the first spray nozzle body  332  and the second spray nozzle body  334 , there may be one, two or more spray nozzle channels, such as a first spray nozzle channel  362  and a second spray nozzle channels  364 . Both of the first spray nozzle channel  362  and the second spray nozzle channels  364  are connected to the same or different liquid lines (such as liquid lines  370 ,  380  as shown in  FIG. 4 ) for delivering one or more liquid solutions therein. Suitable solutions include water, a cleaning solution, a barrier spray solution, a medicine-containing solution, and combinations thereof. For example, medications, cleaning solutions, moisturizing creams, lotions, skin sealants, moisture barriers, skin protection paste, ointments, paste or solutions of mineral oil, silicone fluids (e.g. dimethicone and cyclomethicone), petrolatum, cod liver oil, lanolin, zinc oxide, talc, calamine, kaolin, topical starch and allantoin, lotions, fluids medicaments, skin protection fluid, chemical suspensions, and/or a pharmaceutical formulation to a surface area of a human subject. For example, Desitin® ointment (Pfizer, Inc.) is probably the most common topical used in treating diaper rash and other rash. It contains common barrier materials (zinc oxide and petrolatum) and additionally contains two common skin conditioning agents (cod liver oil and lanolin). 
         [0050]    Also shown in  FIG. 2  is the drying nozzle assembly  600 , which includes a drying nozzle unit  630  having a retractable element  634  and a nozzle tip portion  632 . A drying nozzle opening is positioned at the tip of the nozzle tip portion  632 . The retractable element  634  and the nozzle tip portion  632  of the drying nozzle unit  630  are configured to be retractable (as shown in a “R 2 ” direction) and movable in three-dimensional rotational motion, as driver by one ore more driving motors (such as a driving motor  638 , etc.) and steering gears (such as a steering gears  321 ,  323 , etc.). 
         [0051]    In one embodiment, the movements of the spraying nozzle unit  330  and the drying nozzle unit  630  may be driven by separate set of motors and steering gears. In another embodiment, the movements of the spraying nozzle unit  330  and the drying nozzle unit  630  may be driven by a shared set or partially shared set of motors and steering gears. For example, as shown in  FIG. 2 , the driving motors  322 ,  324 , may be coupled together by steering gears  321 ,  323  to function and drive coherently in order to coordinate and direct the movements of the spraying nozzle unit  330  and the drying nozzle unit  630 . 
         [0052]    The steering gears  321 ,  323  can rotate clockwise or counterclockwise. In one example, the driving motor unit  324  can be adapted to control the movements of the first spray nozzle body  332  and the second spray nozzle body  334  so that they are retractable, moving in a retractable direction, marked as “R 1 ”, to be extended and retracted in and out of the front end of the spray nozzle unit  330 . In another example, the first spray nozzle body  332  and the second spray nozzle body  334  of the spraying nozzle unit  330  are configured to move in a vertical direction, marked as “V”, to move up and down, particularly after the spraying nozzle unit  330  are extended and retracted out. In another example, the motor  324  can be adapted to control the movement of the nozzle tip portion  632  to be able to move in a retractable direction, marked as “R 2 ”, to be extended and retracted in and out of the front end of the drying nozzle unit  630 . 
         [0053]      FIG. 3A  illustrates another example of the bidet seat system  100  having the spraying nozzle assembly  300 , the drying nozzle assembly  600 , and one or more control units  310 ,  340 . The bidet seat system include one or more motors  322 ,  324  that are coupled to function coherently by one or more gears  321 , 323 . 
         [0054]    The control units  310 ,  340  can be used for remotely controlling the spray nozzle assembly  300  and the drying nozzle assembly  600 . In one embodiment, the control unit  340  may include touch screen display that can detect one or more finger contacts. In other embodiments, the control units  310 ,  340  may include control buttons, a joystick, a slider, a remote control unit, a hand-held control unit, a touch screen control unit, a joystick-type control unit, a steering-wheel type control unit, a built-in control unit being secured adjacent the toilet seat assembly, any other control device now known or later developed, and/or combinations. The remote control units  310 ,  340  allows for the operation of devices that are out of convenient reach for direct operation of controls. The control units  310 ,  340  can receive an input from a user of the bidet seat system  100  and transmits the user input to the responsible parts and components for the movements of the spray nozzle assembly  300  and the drying nozzle assembly  600 . 
         [0055]      FIG. 3B  is a partially enlarged view of the first spray nozzle body  332  and the nozzle jet head opening  362 A of the spraying nozzle assembly  330  and the drying nozzle opening  662  of the drying nozzle assembly  630  of  FIG. 3A  and a cross-sectional view of the first spray nozzle body  332  of the spraying nozzle assembly  330  and the nozzle tip portion  662  of the drying nozzle assembly  630 , cutting along the line A-A′ according to embodiments of the invention. 
         [0056]      FIG. 4  shows another example of the toilet seat assembly  200 . In one embodiment, the toilet seat assembly  200  is connected with the liquid lines  370 ,  380  for a source of hot water and a source of cold water, and for a cleaner solution or medicine-containing solution. In another embodiment, the toilet seat assembly  200  is connected with the liquid lines  370 ,  380  and capable of water jetting or delivering a medicine-containing solution. 
         [0057]      FIG. 5A  shows an internal perspective view of the base housing  210  of the toilet seat assembly  200  to illustrate inside views of the spray nozzle assembly  300  and the dry nozzle assembly  600 . The spraying nozzle unit  330  may include the first spray nozzle body  332 , the second spray nozzle body  334 , whose movements are driven by the driving motor units  320 ,  322 .  FIG. 5B  is a partially enlarged side view of the drying nozzle assembly  600  of  FIG. 5A  and  FIG. 5C  is a partially enlarged bottom view of the spray nozzle assembly  300  and the drying nozzle assembly  600  of  FIG. 5A . As shown in  FIGS. 5A-5C , the driving motor units  320 ,  322  may be coupled together by one or more steering gears  321 ,  323  in order to coordinate and direct the movements of the spray nozzle assembly  300  and the drying nozzle assembly  600 . 
         [0058]      FIG. 6  illustrates the movements of the drying nozzle assembly  600  as driven by one ore more motors, such as a driving motor assembly  620  having driving motors  622 ,  624 , as connected and coupled by a connector base  650 . The driving motors  622 ,  624  can be controlled by a control unit  640  (via wired or wireless connection) in order to coordinate and direct the movements of the drying nozzle assembly  600 . 
         [0059]    In one embodiment, the drying nozzle unit  630  includes a fan  610 , one or more air channels  612 ,  612 A,  612 B, retractable elements  634 ,  634 A,  634 B,  634 C, and a nozzle tip portion  632 , with the drying nozzle opening  662  located at the tip. The drying nozzle unit  630  may be able to deliver air with the use of a high output power fan, such as the fan  610 . In one embodiment, the fan  610  of the drying nozzle assembly  600  is adapted to blow air at an adjustable speed. In another aspect, the fan  610  of the drying nozzle assembly  600  is adapted to blow air at an adjustable temperature. 
         [0060]      FIG. 7  is an internal perspective view of a base housing  720  of a toilet seat assembly  700  to show the inside views of the drying nozzle assembly  600 . The toilet seat assembly  700  includes a seat cover  710 , the base housing  720 , a seat  730 , a seat body  732 , a base  740 , and an electric wire  750 . The toilet seat assembly  700  is connected, via the electric wire  750 , to an electric outlet to provide electric driving power to various motors and fans within the toilet seat assembly m  700 . 
         [0061]      FIG. 8  shows a top view of the drying nozzle unit  630  stored inside the seat body  730  within the seat  730 . Under the control of a user, the drying nozzle assembly  630  may extend the nozzle tip portion  632  out so as to blow air out of the drying nozzle opening  662  and dry an area or a region of a body part of a human subject. In addition to being retractable, the drying nozzle unit  630  is adapted to move in three-dimensional direction, both vertically, horizontally, and circularly (as marked in an arrowed direction “H” (e.g., circular, or rotational, in three-dimensional, etc.) so as to be able to reach to a localized area near a region of a human body that need to be dried. 
         [0062]      FIG. 9  is a side view showing a human subject using the drying nozzle assembly  600  according to embodiments of the invention. In one example, driving motors  622 ,  624  can be adapted to control the movements of the nozzle tip portion  632  to be able to move in a retractable direction, marked as “R”, to be extended and retracted in and out of the front end of the drying nozzle assembly  600 . In another example, the drying nozzle assembly  600  are able to move in a vertical direction, marked as “V”, to move up and down, particularly after the drying nozzle assembly  600  are extended and retracted out. 
         [0063]      FIG. 10A  is a perspective view of a prior-art conventional bidet seat system having a bidet toilet seat assembly  500 , an air vent  512 , and a spray nozzle mechanism  530 .  FIG. 10B  is a partially enlarged view of the air vent  512  and the spray nozzle mechanism  530  of  FIG. 10A . The air vent  512  generally includes a fan cover  514  and a plurality of leaves  510  to direct the direction of air flow (the leaves are used to direct air flow, similar to leaves on a small singe-room air conditioner). The spraying nozzle mechanism  530  may include a cut-out  522  near a covering  540 , where a spray nozzle  534  can extended out. The angles and movements of the spraying nozzle mechanism  530  and the air vent  512  are limited and usually are extended out downward and cannot be controlled to a desired area of a human body. They cannot be extending or retracting, in combination with raising up or lowering the angle to be near a region of the body of a user. 
         [0064]      FIG. 11  shows one example of a medicine delivery assembly  400  in conjunction with a spraying nozzle assembly  480  and a drying nozzle unit  460  as controlled by a control unit  440  remotely according to embodiments of the invention. In one embodiment, the medicine delivery assembly  400  may include one or more medicine storage assembly  410 A,  410 B for delivering a solution, such as a medicine-containing solution (e.g., zinc oxide, menthol-containing solutions, silicone fluids (e.g. dimethicone and cyclomethicone), petrolatum, cod liver oil, lanolin, zinc oxide, talc, calamine, kaolin, topical starch and allantoin, lotions, fluids medicaments, skin protection fluid, etc.) The medicine storage assembly  410 A,  410 B may each include a medicine storage tank  411 A,  411 B, adapted for storing a medicine-containing solution, a tank cover  413 A,  413 B, a tubing  412 A,  412 B, and a pipe orifice  414 A,  414 B connected to the base  240  to go to the inside of the base housing  220 . 
         [0065]    In another embodiment, the medicine delivery assembly  140  can include one or more medicine storage cartridges, such as medicine storage cartridges  420 A,  420 B, and the medicine delivery assembly  140  is adapted to deliver e one or more medicine-containing solutions that are stored at the medicine storage cartridges  420 A,  420 B. Once medicine-containing solution within the medicine storage cartridges  420 A,  420 B are low or empty, they can be easily replaced with a new set of matching medicine storage cartridges  420 A,  420 B. 
         [0066]    In still another embodiment, the medicine delivery assembly  140  includes one or more medicine base units, such as a right medicine base unit  456 A and/or a left medicine bass unit  456 B, etc. Each medicine base unit  456 A,  456 B includes at least a cartridge unit  428 A,  428 B, and at least a cartridges slot  458 A,  458 B, where each of the cartridge slot  458 A,  458 B is adapted to match with a medicine storage cartridge, such as medicine storage cartridge  420 A,  420 B. 
         [0067]    In one aspect, each of the medicine storage cartridge  420 A,  420 B includes a cartridge cover  404 A,  404 B, a medicine inlet  422 A,  422 B being connected to a medicine storage assembly (such as the medicine storage assembly  410 A,  410 B or any other suitable medicine storage assembly, positioned within the base housing  220 ), and a sensor  429 A,  429 B for matching and identifying a medicine solution stored within the medicine storage assembly. 
         [0068]      FIG. 13  shows one example of the medicine storage assembly  410 . The tank cover  413 B of the medicine storage assembly  410 A can be opened and closed by clockwise or counterclockwise movements. The medicine storage tank  411 A is adapted for storing a medicine-containing solution. In one example, the tubing  412 A is connected to the medicine inlet  422 A of the medicine storage cartridge  420 A. In another example, the medicine storage assembly  410 A,  410 B further includes a medicine storage element  402 A,  402 B, which is adapted to store one or more medicines to be mixed with water to form into the medicine-containing solution. 
         [0069]    In another example, the medicine storage assembly  410 A,  410 B further includes a liquid solution indicator  418 A,  418 B adapted to indicate the content level of the medicine-containing solution within the medicine storage tank  411 A,  411 B. Further, the medicine storage assembly  410 A,  410 B may also include a pressurized pump  415 A,  415 B adapted to pump and deliver the medicine-containing solution from the medicine storage tank  411 A,  411 B into the toilet seat assembly  200 . 
         [0070]      FIG. 14  illustrates detail of the medicine storage cartridge  420 A, which is coupled to a sensor  424 A to indicate the current status of a medicine-containing solution stored therein. The medicine storage cartridges  420 A,  420 B can be pulled out from the cartridge slot  458 B for adding or changing medicines. 
         [0071]    Referring back to  FIG. 12 , which shows an internal perspective view of another example of the base housing  220  of the bidet seat and cover system  100  to illustrate interior views of the spraying nozzle assembly  300 , the drying nozzle assembly  600 , and the medicine delivery assembly  400 , showing more than one suitable medicine base units (such as the right medicine base unit  456 A and the left medicine base unit  456 B), more than one medicine storage cartridges  420 A,  420 B, and a medicine delivery nozzle  430  according to embodiments of the invention. 
         [0072]    As shown in  FIG. 12 , the medicine delivery assembly  400  can include one or more driving motors  426 A,  426 B, one or more steering gears  416 , and a medicine delivery nozzle  430  having a nozzle body  432  that is adapted to be retractable and movable rotationally and vertically in three-dimensional direction. In one embodiment, the medicine delivery nozzle  430  is adapted to deliver one or more medicine-containing solutions to the region of the human body. 
         [0073]    In one aspect, the medicine delivery nozzle  430  includes an atomizer nozzle head  432 A adapted to atomize a medicine-containing solution to achieve a consistency that can be applied over a distance and deliver a stream of the medicine-containing solution to an user. In another aspect, the medicine delivery nozzle  430  is adapted to deliver the medicine-containing solutions across a space to a perianal region of a user. In still another aspect, the medicine delivery assembly  400  further includes a pressurized pump  425 A,  425 B adapted to pump and deliver the medicine-containing solution from the medicine inlet  422 A,  422 B of the medicine storage cartridge  420 A,  420 B. 
         [0074]    In still another embodiment, the spraying nozzle assembly  480  and the medicine delivery nozzle  430  of the medicine delivery assembly  400  may be adapted to be able to move similarly in three-dimensional dynamic movements, but be separated physically from each other to work together in spraying a solution and delivering a medicine-containing solution, respectively.  FIG. 15A  is an internal perspective view of the medicine delivery assembly  400 , showing one example of the medicine delivery nozzle  430  that works independently in delivering a medicine-containing solution without going through the spraying nozzle assembly  400  positioned near base housing  220 . 
         [0075]      FIG. 15B  illustrates vertical movements of the medicine delivery nozzle  430  of the medicine delivery assembly  400  of  FIG. 15A . The medicine delivery nozzle  430  is adapted to move in a vertical and/or rotational direction, marked as “V”, to move up and down, particularly after the medicine delivery nozzle  430  are extended out, not retracted. 
         [0076]      FIG. 15C  illustrates the retracting and extending movements of the medicine delivery nozzle  430  of the medicine delivery assembly  400  of  FIG. 15A . The medicine delivery nozzle  430  is adapted to move in a retractable direction, marked as “R”, to be retracted in and extended out of the front end of the medicine delivery nozzle  430 . 
         [0077]    In one embodiment, the medicine delivery assembly  400  may be adapted to couple to and function together to deliver a medicine-containing solution to the one or more spray nozzle channels of the spraying nozzle assembly  300  and/or the spraying nozzle assembly  480 . In one aspect, the spray nozzle channels of the spraying nozzle assembly  300 ,  480  includes the nozzle jet head opening  362 A adapted to deliver any suitable solution at high speed. Suitable solution may be selected form the group consisting of water, a cleaning solution, a barrier spray solution, a medicine-containing solution, and combinations thereof. 
         [0078]      FIG. 16  illustrates another example of a spraying nozzle assembly  800 , a drying nozzle assembly  900  as controlled a control unit  440 . The spraying nozzle assembly  800  includes a nozzle body  834  and a nozzle tip portion  832 , and their movements are driven by one ore more driving motor unit  820  with one or more driving motor  822 ,  824 , which are coupled to steering gears  821 ,  823  to function together. Two nozzle channels with nozzle tip openings  862 ,  864  are configured inside the nozzle body  834  for separately delivering water and a cleaning solution in each nozzle channel. Alternatively, the two nozzle channels may be configured to deliver water and a medicine-containing solution each. 
         [0079]    The drying nozzle assembly  900  includes a fan  938 , one or air channels  912  connected to the fan  938 , one ore more drying nozzle units  460  connected to the one or more air channels  912 , and one or more driving motor units  820  with driving motor  822 ,  824 , which are shared with the spraying nozzle assembly  800  so that the spraying nozzle assembly  800  and the drying nozzle assembly  900  can be coupled to move together. In one aspect, the one or more driving motor units  820  of the medicine delivery assembly  900  includes one or more steering gears, a first driving motor being connected to the one or more drying nozzle units and the one or more steering gears, wherein the first driving motor is adapted to move the one ore more drying nozzle units in retracting-and-extending motion. In another aspect, the one or more driving motor units of the medicine delivery assembly further includes a second driving motor being connected to the one or more drying nozzle units and the one or more steering gears, wherein the second driving motor is adapted to move the one ore more drying nozzle units in three-dimensional circular rotational motion. 
         [0080]    Another embodiment of the invention provides one or more control units connected to the toilet seat assembly and the medicine delivery assembly, where the control units are adapted to receive a user input and, based on the user input, to direct movements of one or more motors and adjust the positions of one or more nozzles within the toilet seat assembly and the medicine delivery assembly. 
         [0081]      FIG. 17  is a flow chart of a method  1000  of using a seat and cover system of the invention to deliver a solution to a region of a human body. The method  1000  includes washing an area of the region with a spraying nozzle assembly of the seat and cover system at step  1010 . In addition, the area of the region with the spraying nozzle assembly of the seat and cover system can be cleaned with a cleaning solution. 
         [0082]    Step  1010  may include controlling one or more movements of a spraying nozzle assembly by one or more control units, directing one or more three-dimensional rotational movements of one or more spray nozzle units of the spraying nozzle assembly by communicating one or more control units with one or more first driving motors connected to the one or more spray nozzle units, and directing one or more extending and retracting movements of the one or more spray nozzle units of the spraying nozzle assembly by communicating the one or more control units with one or more second driving motors connected to the one or more spray nozzle units. The step  1010  may also includes jetting out water from a first nozzle jet head opening of a first spray nozzle channel within the one or more spray nozzle units, and jetting out the solution from a second nozzle jet head opening of a second spray nozzle channel within the one or more spray nozzle units. 
         [0083]    Further, during step  1010 , a first spray nozzle channel is adapted to deliver water to the region of the human body for washing the region, and a second spray nozzle channel is adapted to deliver a cleaning solution to the region of the human body for cleaning the region. In another aspect, the second spray nozzle channel is adapted to deliver a medicine-containing solution to the region of the human body for treating the region. In still another aspect, a first spray nozzle channel is connected to a first liquid line to deliver a washing solution to the region of the human body for washing the region, and a second spray nozzle channel is connected to a second liquid line to deliver a cleaning solution to the region of the human body for cleaning the region. In yet another aspect, the first spray nozzle channel is connected to a first liquid line to deliver a washing solution to the region of the human body for washing the region, and the second spray nozzle channel is connected to a second liquid line to deliver a medicine-containing solution to the region of the human body for treating the region. 
         [0084]    At step  1020 , the area of the body of the user near a drying nozzle assembly of the seat and cover system is dried. The step  1020  may include controlling one or more movements of a drying nozzle assembly by one or more control units, including directing one or more three-dimensional rotational movements of one or more drying nozzle units of the drying nozzle assembly by communicating one or more control units with one or more first driving motors connected to the one or more drying nozzle units, and directing one or more extending and retracting movements of the one or more drying nozzle units of the drying nozzle assembly by communicating the one or more control units with one or more second driving motors connected to the one or more drying nozzle units. 
         [0085]    In one embodiment, air from a drying nozzle opening is blown out at a predetermined temperature and a predetermined speed. The step  1020  may also include rotating a nozzle tip portion within the one or more spray nozzle units so that the air is adjusted to be deliver to a desired region of the human body, and adjusting one or more retractable elements within the one or more spray nozzle units by retracting and extending so that the air is adjusted to be deliver to a desired region of the human body. In addition, the step  1020  further includes receiving a user input from the drying nozzle assembly from the one or more control units, and adjusting the one or more extending and retracting movements of the one or more drying nozzle unit based on the user input. Further, the step  1020  further includes receiving a user input from the drying nozzle assembly from the one or more control units; and adjusting the one or more three-dimensional rotational movements of the one or more drying nozzle unit based on the user input. 
         [0086]    At step  1030 , a medicine-containing solution is applied onto the area using a medicine delivery assembly of the seat and cover system. The step  1030  includes providing one or more medicines to a medicine delivery assembly which is coupled to a toilet seat assembly, and controlling one or more movements of the medicine delivery assembly by one or more control units. In one aspect, controlling the movements of the medicine delivery assembly includes directing one or more extending and retracting movements of a medicine delivery nozzle of the medicine delivery assembly by communicating the one or more control units with one or more first driving motors connected to the medicine delivery nozzle, and directing one or more three-dimensional rotational movements of the medicine delivery nozzle of the medicine delivery assembly by communicating the one or more control units with one or more second motors connected to the medicine delivery nozzle. 
         [0087]    At step  1040 , optionally, the area of the body is dried again with an air drying assembly of the seat and cover system. Drying the area is performed similar to step  1020 ; however, the speed and temperature of the air blown to the area of the body may differ, and can be adjusted according to personal preference. 
         [0088]    The system provided here present a safer, more hygienic, and more effective alternative method to self-administer perianal medicines than any option currently available. To this extent, the system can present a discreet, “hands-free” alternative to the current options, or couple to other system, such as a bidet toilet seat system, thereby substantially eliminating any discomfort, ineffectiveness, and/or embarrassment a user might otherwise experience. 
         [0089]    While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.