Patent Publication Number: US-2023157695-A1

Title: Hemorrhoids ligation treatment device

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to medical devices, particularly ligation treatment devices and ferrules, and to the treatment of internal hemorrhoids in clinical operation. 
     2. Description of Relevant Art 
     In surgically treating hemorrhoids, all of the relaxed superficial vein network in the anal canal are ligated so the hemorrhoids will have no source for a blood supply. Hemorrhoids without a blood supply will disappear and be cured. Compared with using an anastomosis device for the ligation, an anorectal applicator can greatly shorten the operation time, reduce the difficulty of operation and improve the quality of operation. In addition, the use of an anorectal applicator not only facilitates the operation process, but also reduces the bleeding and relieve pain and other symptoms of patients postoperatively. Generally, anorectal applicators have a process of suction by negative pressure. However, the amount of suction is not readily determined and remains a problem to be solved. 
     SUMMARY OF THE INVENTION 
     The present invention provides a binding device for use in hemorrhoid ligation. The device has a shell, a push tube in the front end of the shell, and a suction tube in the push tube. The front end of the suction tube extends outward from the front end of the push tube and has a binding piece sleeved at said front end. The device also has a scale cylinder with a cylinder body and a piston piece. The piston piece is fixedly arranged with the interior of the cylinder body such that the piston piece divides the cylinder body into two cylinder cavities—a first cylinder cavity and a second cylinder cavity. The binding device of the invention further has a negative pressure device inside the shell, having a suction port in communication with the back end of the suction tube, and having an air extraction port in communication with the first cylinder cavity. The cylinder body can move relative to the shell, and the shell comprises a with a scale part corresponding to the movement of the cylinder body. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1    is a cutaway side view showing the interior of one embodiment of the binder or hemorrhoids ligation treatment device of the present embodiment. 
         FIG.  2    is a perspective side view of an embodiment of the binder of the invention without a pressure relief button. 
         FIG.  3    is a side view of one embodiment of the binder of the invention with a pressure relief button. 
         FIG.  4    is a cutaway end view of a section of the binder of the invention shown in  FIG.  3   . 
         FIG.  5    is a top view of the binder in  FIG.  1   . 
         FIG.  6    is a side view of one embodiment of the binder of the invention having a marker arranged on the scale part of the binder. 
         FIG.  7    is a side view of one embodiment of the binder of the invention having a scale part in the form of a dial. 
         FIG.  8    is a side perspective view of the ferrule in one embodiment of the invention. 
     
    
    
     DETAILED DESCRIPTION 
     The present invention solves the problems of the prior art associated with indefiniteness in amount of suction to be used with an anorectal applicator. The present invention solves those problems by providing a binding device or binder. Referring to the figures, the binding device of one embodiment of the invention comprises: a shell  100 , a push tube  101  at the front end of the shell; a suction tube  200  penetrated within the push tube  101 , wherein the front end  220  of the suction tube  200  is penetrated out of the front end of the push tube  101 . A negative pressure device  300  is arranged inside the shell, and the negative pressure device  300  has a suction port  310  that is connected with the rear end  230  of the suction tube  200 . A scale cylinder  400  is included on the cylinder body  410 . The inner part of the cylinder body  410  is provided with a piston piece  420 , which is fixedly arranged. The piston piece  420  divides the cylinder body  410  into two cylinder chambers, a first cylinder chamber  430   a  and a second cylinder chamber  430   b  and the suction port  310  of the negative pressure device  300  is connected with one of the cylinder chambers—cylinder chamber  430   a;  the cylinder body  410  can move with the shell  100  relative to each other, and the shell  100  is provided with a scale part  500  corresponding to the moving displacement of the cylinder body  410 . 
     The binding device of the invention is sleeved on the front end  220  of the suction tube  200 . 
     Preferably, the front end of the piston part  420  is connected with the piston rod  440 . The piston rod  440  and the piston part  420  are hollow structures. The piston rod  440  is connected with the piston part  420 , the piston rod  440  is connected with the suction port  310  of the negative pressure device  300 . The two cylinder cavities  430   a  and  430   b  are arranged in order from the front [cylinder cavity  430 ] to the rear [cylinder cavity  430   b ], and the cylinder cavity  410  at the rear [cylinder cavity  430   b] is connected with the piston part  420 .    
     Further, the rear end of the suction tube  200  is inserted into the piston rod  440 . Further, the rear end of the suction tube  200  is provided with a convex part  210 . The convex part is in the piston rod  440 , and the structure of the cross section of the convex part  210  is the same as that of the cross section inside the piston rod  440 . 
     Further, the shell is provided with a gas inlet channel  110 , the inlet of the gas inlet channel  110  is provided with a pressure relief button  700 , and the outlet of the gas inlet channel  110  is communicated with the piston rod  440 . 
     Further, the binding device also includes a binding release button  800  movably installed on the shell  100 , the binding release button  800  can move relative to the shell  100 , and the binding release button is connected with the suction tube  200 . 
     In one embodiment, the binding device has a ferrule  620  which has associated with it a take-up device  610 . The take-up device  610  is installed on the shell  100 ; one end of the ferrule  620  is wound on the take-up device  610 , the other end of the ferrule is tied with a loose knot to form a ring sleeve  621 , and the ring sleeve  621  is tight to the front end  220  of the suction tube  200 . Preferably, the ferrule  620  is an elastic ring  600  arranged at the front end  220  of the suction tube  200 . Preferably, the ferrule  620  also includes a negative pressure driving component  900 , the negative pressure driving component  900  includes a handle  910  which is movably installed on the shell  100 , one end  921  of a fork  920  is movably connected with handle  910 , the other end  922  of fork  920  is movably connected with the suction piston  320  of the negative pressure device  300 . 
     Preferably, the cylinder body  410  moves along the front and back direction of the binding device; the scale part  500  is a long strip scale bar  510  corresponding to the moving path of the cylinder body  410 , or the scale part is a dial  520  corresponding to the moving displacement of the cylinder body  410 . 
     As described above, the ferrule  620  of the invention has the following beneficial effects: When the device of the invention is used, the suction tube  200  of the ligating device is aligned with the hemorrhoid core to be ligated, and after the suction port  310  of the negative pressure device  300  makes the suction action, under the effect of negative pressure, the hemorrhoid core is sucked into the suction tube  200 . At the same time, because the piston part  420  is fixedly arranged, the air pressure in the cylinder cavity  410  communicated with the suction port  310  of the negative pressure device  300  is reduced, the cylinder body  410  will move, and the staff will move with the cylinder body through the movement The scale part corresponding to the dynamic displacement is informed of the movement amount of the cylinder body. 
     When the user of the device of invention is informed by the device that the movement amount of the cylinder body reaches the preset amount, the suction amount of the negative pressure device  300  reaches the preset requirement, and then the user can use the binding parts to bind the hemorrhoids. The present invention allows users of the invention to know the amount of negative pressure extraction, with simple structure, convenient use and more accurate performance of the binding operation. 
     While preferred embodiments of the present disclosure have been described, it should be understood that other various changes, adaptations, and modifications can be made therein without departing from the spirit of the invention(s) and the scope of the appended claims. The scope of the present disclosure should, therefore, be determined not with reference to the above description, but instead should be determined with reference to the appended claims along with their full scope of equivalents. Furthermore, it should be understood that the appended claims do not necessarily comprise the broadest scope of the invention(s) which the applicant is entitled to claim, or the only manner(s) in which the invention(s) may be claimed. 
     APPENDIX: DRAWING LABEL DESCRIPTION 
     
         
           100  shell 
           101  push tube (or pipe) 
           110  gas inlet channel 
           200  suction tube 
           210  raised part 
           220  front end of the suction tube  200   
           230  rear end of the suction tube  200   
           300  negative pressure device 
           310  suction port 
           320  pumping piston 
           330  trachea 
           400  scale cylinder 
           410  cylinder body 
           420  piston piece 
           430   a  first cylinder chamber 
           430   b  second cylinder chamber 
           440  piston rod 
           500  scale part 
           510  long strip scale bar 
           520  dial 
           600  elastic ring 
           610  take-up device 
           620  ferrule 
           621  ring sleeve 
           700  pressure relief button 
           800  binding release button 
           900  negative pressure driving component 
           910  handle 
           920  fork 
           921  one end of fork  920   
           922  other end of fork  920