Patent Publication Number: US-2019183673-A1

Title: Cold compression device

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a device for physiotherapy, especially to a device for cold compression. 
     2. Description of the Prior Arts 
     A conventional cold compression device has a main body, multiple tubes, and a wrap. The main body comprises a tank for receiving ice and water and a water pump communicating with the tank. The tubes are connected to the main body and the wrap so that the iced water is drawn by the water pump to circulate between the tank and the wrap through the tubes. Therefore, with the wrap covering and tightened on a human body, the iced water may cool the covered part of the human body. However, when the conventional cold compression device is stopped using, the water flowing into the wrap is hard to be discharged thoroughly, so bacteria, mildew, or moss may grow in the wrap. Therefore, the water is polluted and the useful lifetime of the water pump and the wrap may be decreased. 
     Besides, some of the conventional cold compression devices further each have an air pump so that air is drawn by the air pump to circulate between the tank and the wrap through the tubes. However, a common air pump only can pull air into the wrap till the pressure in the wrap arrives at the maximum and then discharges all air from the wrap. In other words, the pressure in the wrap cannot be adjusted. Therefore, no matter by which means the wrap is tightened on the human body, various parts of the human body tightened by the wrap of the conventional cold compression bear the same pressure. Therefore, when the wrap is tightened on some parts of the human body, that person may feel either over tightened or inadequate pressure. 
     To overcome the shortcomings, the present invention provides a cold compression device to mitigate or obviate the aforementioned problems. 
     SUMMARY OF THE INVENTION 
     The main objective of the present invention is to provide a cold compression device that can discharge water thoroughly. 
     The cold compression device has a driving assembly, a tank, a wrap assembly, and a tube assembly. The driving assembly comprises: a water pump and an air pump. The wrap assembly comprises a wrap, a water pack and an air pack. Both the water pack and the air pack are in the wrap. The air pack overlaps on the water pack. The tube assembly has a first tube, a second tube, a third tube, and a fourth tube. One end of the first tube selectively extends into and communicates with the tank and another end of the first tube communicates with the water pump. One end of the second tube communicates with the water pump and another end of the second tube communicates with the water pack. One end of the third tube communicates with the water pack and another end of the third tube communicates with the tank. One end of the fourth tube selectively communicates with the air pump and another end of the fourth tube communicates with the air pack. 
     Therefore, as the first tube is detachable from and put out of the tank, the water pump may draw air into the water pack, which discharges the water in the water pack thoroughly. 
     Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view of a cold compression device in accordance with the present invention; 
         FIG. 2  is a top view of a second portion of a bag of the cold compression device in  FIG. 1 ; 
         FIG. 3  is a sectional view of the cold compression device in  FIG. 1 ; 
         FIG. 4  is a top view of the cold compression device in  FIG. 1 , showing an opening of a first portion of the bag is opened; 
         FIG. 5  is a side view of the bag of the cold compression device in  FIG. 1 , showing the second portion is detached from the first portion; 
         FIG. 6  is a perspective view of a driving assembly of the cold compression device in  FIG. 1 ; and 
         FIG. 7  is an exploded view of a wrap assembly of the cold compression device in  FIG. 1 . 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Please refer to  FIGS. 1 to 3 . A cold compression device in accordance with the present invention is provided. The cold compression device comprises a bag  10 , a driving assembly  20 , a tank  30 , a wrap assembly  40 , and a tube assembly  50 . 
     Then please refer to  FIGS. 3 to 4 . The bag  10  forms an opening  100 . The opening  100  is capable of being opened or closed. The bag  10  comprises a first portion  11  and a second portion  12  detachably mounted on the first portion  11 . In this embodiment, the opening  100  is formed on the first portion  11 , and the second portion  12  selectively closes or opens the opening  100 . The second portion  12  is mounted on the first portion  11  by means such as a zipper, button, or buckle. 
     Precisely, in this embodiment, the bag  10  further comprises a zipper arranged on the opening  100 , and the second portion  12  comprises a main body  121 , a belt  122 , and a fastener  123 . One end of the belt  122  is securely mounted on the main body  121  of the second portion  12 , and the fastener  123  is mounted on another end of the belt  122  so that the belt  122  is detachably mounted with the first portion  11  via the fastener  123 . The fastener  123  may be a buckle or a hook and loop fastener. Therefore, when the zipper is opened, the second portion  12  can be moved from the opening  100  and thus the opening  100  is opened (as shown in  FIG. 4 ). However, at this time, the second portion  12  is still connected to the first portion  11  via the belt  122  and the fastener  123  unless the fastener  123  is detached from the first portion  11  (as shown in  FIG. 5 ). 
     Then please refer to  FIGS. 1, 3, and 6 . The driving assembly  20  is accommodated in the second portion  12  of the bag  10 . The driving assembly  20  comprises a water pump  21 , an air pump  22 , a valve  23  mounted on the air pump  22 , and a controller  24  control the water pump  21  and the air pump  22 . In this embodiment, the controller  24  is a remote controller and thus controls the water pump  21  and the air pump  22  via wireless signal, but it is not limited thereto. In another embodiment, the controller  24  may be electrically connected with the water pump  21  and the air pump  22  by a wire. 
     The tank  30  is accommodated in the first portion  11  of the bag  10  and thus the tank  30  is selectively exposed via the opening  100  of the bag  10  when the opening  100  is open. 
     The wrap assembly  40  comprises a wrap  41 , a water pack  42 , and an air pack  43 . The water pack  42  and the air pack  43  are disposed in the wrap  41 , and the air pack  43  is overlapped on the water pack  42 . 
     Then please refer to  FIGS. 3, 4, and 7 . The tube assembly  50  includes a first tube  51 , a second tube  52 , a third tube  53 , and a fourth tube  54 . 
     One end of the first tube  51  selectively extends into and communicates with the tank  30 , and another end of the first tube  51  communicates with the water pump  21 . Precisely, the first tube  51  comprises a filter component  511 , a securing component  512 , a first section  513 , a second section  514 , and a third section  515 . The filter component  511  is used for filtering the water flowing in the first tube  51 . The securing component  512  is detachably mounted on the tank  30 . One end of the first section  513  communicates with the water pump  21  and another end of the first section  513  communicates with the filter component  511 . One end of the second section  514  communicates with the filter component  511  and another end of the second section  514  communicates with the securing component  512 . One end of the third section  515  communicates with the filter component  511  and another end of the third section  515  extends into and communicates with the tank  30 . 
     One end of the second tube  52  communicates with the water pump  21  and another end of the second tube  52  communicates with the water pack  42 . One end of the third tube  53  communicates with the water pack  42  and another end of the third tube  53  detachably communicates with the tank  30 . One end of the fourth tube  54  communicates with the air pump  22  and another end of the fourth tube  54  communicates with the air pack  43 . 
     With aforesaid structure, the cold compression device of the present invention can make iced water circulate in the tank  30  and the wrap assembly  40 . Precisely, ice and water are put into the tank  30  first, and then the water pump  21  draws the iced water via the first tube  51  and conveys the iced water to flow into the water pack  42  via the second tube  52 . As the water pump  21  keeps operating, the iced water is further conveyed back to the tank  30  via the third tube  53 . 
     Therefore, when the wrap assembly  40  is wrapped around a human body, the cold compression device can cold compress the human body. In some circumstances, the user may turn on the air pump  22  to draw air into the air pack  43  via the fourth tube  54 , which causes the air pack  43  to expand and thereby the wrap assembly  40  may exert pressure on the human body. Besides, with the valve  23 , the user may discharge the air into the air pack  43  at any time. In other words, the pressure exerted on the human body can be adjusted via drawing the air into the air pack  43  by the air pump  22  and discharging the air from the air pack  43  by the valve  23 . 
     After the cold compression is finished, the user can detach the securing component  512  of the first tube  51  from the tank  30 , draw the third section  515  of the first tube  51  out of the tank  30 , and keep the water pump  21  operating. Therefore, air may be drawn into the water pack  42  via the first tube  51  and the second tube  52  by the water pump  21 , and thereby the air may pull the water in the water pack  42  to flow back to the tank  30  via the third tube  53 . Therefore, the water may discharge thoroughly from the water pack  42 . 
     Sometimes, the user may only want to press his/her body but does not need cold compressing, so the user can detach the second portion  12  from the first portion  11  of the bag  10  and the first tube  51  and the third tube  53  from the tank  30 . After that, the user may turn on the air pump  22  in the second portion  12  of the bag  10  and thus the air is drawn into the wrap assembly  40  for pressing the human body. In other words, the driving assembly  20  and the wrap assembly  40  can work without the tank  30  so that the user does not need to carry the heavy tank. 
     Consequently, as the first tube  51  can be detached from and put out of the tank  30 , the water pump  21  may draw air into the water pack  42 , which discharges the water in the water pack  42  thoroughly. Besides, with the air pump  22  comprising the valve  23 , the pressure in the air pack  43  can be adjusted through the air pump  22 . In addition, the driving assembly  20  and the wrap assembly  40  can work without the tank  30  for only pressing the human body. 
     Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and features of the invention, the disclosure is illustrative only. Changes may be made in the details, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.