Patent Document

FIELD 
       [0001]    The present invention relates to a bone infuser for an osseous tissue implanting syringe, and more particularly to one which can be selectively used in combination with the syringe when implanting a bone graft in order to reinforce an artificial dental implant during oral implant surgery, thereby allowing bone graft implantation to be performed in a convenient, rapid, easy, and efficient manner even in the event of implanting an upper molar or the like that requires much labor, or in the event where a large amount of the bone graft is implanted. 
       BACKGROUND 
       [0002]    Recently, dental implant surgeries are broadly performed in order to implant artificial teeth. Such an implant surgery is accompanied by several operations depending on the state of the oral cavity of a patient. In particular, if the alveolar bone into which an artificial dental root is to be implanted is weak, a process of bone graft implantation is performed on a region into which the artificial dental root is to be implanted in order to reinforce the alveolar bone. Since natural or artificial bone grafts are very expensive, doctors pay particular attention when they treat the grafts. 
         [0003]    In the related art, as shown in  FIG. 1 , an existing process of implanting a bone graft into a region into which an artificial dental root is to be implanted involves implanting the bone graft into the region using a common syringe. However, the existing process of using a common syringe  1  has undergone problems in that a bone graft  30  leaks out or is not ejected at a sufficient depth inside a hole formed in the region, since the size of the leading end of a protrusion  2   a  in the front portion of a tube  2  is too large or small compared to that of the hole. In particular, in the case of implanting the bone graft into the upper molar using this common syringe, many difficulties are caused, thereby requiring a long time to be spent on the implantation. Since the common syringe is not structured to facilitate an implantation operation, it is difficult to efficiently perform the implantation operation. In addition, if the implantation operation is performed immoderately, the gum of a patient may be damaged. As such, the existing implantation process involves many potential problems. 
       SUMMARY OF THE INVENTION 
     Technical Problem 
       [0004]    Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a bone infuser for an osseous tissue implanting syringe, which can be selectively used in combination with the syringe when implanting a bone graft for reinforcing an artificial dental implant during oral implant surgery, thereby not only allowing bone graft implantation to be performed in a convenient, rapid, easy, and efficient manner—even in the event of implanting an upper molar or the like that requires much labor, or in the event where a large amount of the bone graft is implanted—but also reducing the time taken for implantation and achieving a maximized effect of oral implant surgery, since the bone graft can be implanted without causing damage to the gum or the like of a patient. 
       Technical Solution 
       [0005]    In order to realize the foregoing object, the present invention provides a bone infuser for an osseous tissue implanting syringe, which includes a cylindrical tube having a protrusion at a leading end thereof and a piston for reciprocating inside the tube in order to press a bone graft toward the protrusion. The bone infuser includes the tube having the protrusion at the leading end thereof, a first infuser, and a second infuser. The protrusion has a form of a cone. One end of the first infuser is open and the other end of the first infuser is closed. The first infuser has an introduction groove therein, so that the bone graft that is ejected through a nozzle inside the protrusion is introduced through the introduction groove, a spiral groove in an inner surface on one end thereof, so that the protrusion is forcibly coupled to the spiral groove in a fitted state during implantation of the bone graft, and an arc-shaped curved portion in an inner surface on the other end thereof, so that the bone graft that is ejected through the nozzle of the protrusion is properly guided by the curved portion. One end of the second bone infuser is open and the other end of the second bone infuser is closed. The second bone infuser and has a spiral groove in an outer circumference on one end thereof, the spiral groove being spirally coupled to the spiral hole of the first infuser, an introduction groove inside thereof, so that the bone graft that has passed through the first bone infuser is introduced through the introduction groove, and a plurality of nozzles along a circumference of the other end thereof, so that the bone graft is radially ejected through the nozzles. 
         [0006]    In addition, the second bone infuser is characterized by being open at both ends thereof, and having a spiral groove in an outer circumference of one end thereof, so that the spiral groove is spirally coupled to the spiral hole of the first bone infuser, and a nozzle inside thereof, wherein the nozzle is configured to extend through the bone infuser. 
         [0007]    In addition, the first and second bone infusers are characterized by being integral to each other. 
       Advantageous Effects 
       [0008]    As set forth above, the bone infuser for an osseous tissue implanting syringe of the invention can be selectively used in combination with the syringe when implanting a bone graft for reinforcing an artificial dental implant during oral implant surgery, thereby not only allowing bone graft implantation to be performed in a convenient, rapid, easy, and efficient manner—even in the event of implanting an upper molar or the like that requires much labor, or in the event where a large amount of the bone graft is implanted—but also reducing the time taken for implantation. A maximized effect of oral implant surgery can be achieved since the bone graft can be implanted without causing damage to the gum or the like of a patient. Furthermore, the bone infuser is not disposable but can be reused after being sterilized. Therefore, the present invention provides a variety of advantages and is thus very useful. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0009]      FIG. 1  is a longitudinal cross-sectional view showing an osseous tissue implanting syringe of the related art; 
           [0010]      FIG. 2  is an exploded perspective view showing an embodiment of the present invention; 
           [0011]      FIG. 3  is a perspective view showing the assembled state of  FIG. 2 ; 
           [0012]      FIG. 4  is a longitudinal cross-sectional view showing the assembled state of  FIG. 2 ; and 
           [0013]      FIG. 5  is a longitudinal cross-sectional view showing another embodiment of the present invention. 
       
    
    
       [0014]      
         [0000]    
       
         
               
             
               
               
               
             
           
               
                   
               
               
                 Major Reference Numerals of the Drawings 
               
               
                   
               
             
             
               
                   
               
             
          
           
               
                   
                 10: syringe 
                 20: tube 
               
               
                   
                 22: protrusion 
                 24, 66, 68: nozzle 
               
               
                   
                 30: bone graft 
                 40: piston 
               
               
                   
                 50: first bone infuser 
                 52, 64: introduction groove 
               
               
                   
                 54, 62: spiral groove 
                 56: curved portion 
               
               
                   
                 58: spiral hole 
                 60: second bone infuser 
               
               
                   
                   
               
             
          
         
       
     
       DETAILED DESCRIPTION OF THE INVENTION 
       [0015]    The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments thereof are shown. 
         [0016]      FIG. 2  is an exploded perspective view showing an embodiment of the present invention,  FIG. 3  is a perspective view showing the assembled state of  FIG. 2 ,  FIG. 4  is a longitudinal cross-sectional view showing the assembled state of  FIG. 2 , and  FIG. 5  is a longitudinal cross-sectional view showing another embodiment of the present invention. 
         [0017]    As shown in  FIGS. 2 to 4 , in the bone infuser for an osseous tissue implanting syringe of the invention, a protrusion  22  is formed on the leading end of a tube  20  of a syringe  10 . The protrusion  22  has the form of a cone, and the tube  20  has the form of a cylinder. A piston  40 , which linearly reciprocates when pressing a bone graft  30  toward the protrusion  22 , is fitted in the tube  20 . 
         [0018]    In addition, a first infuser  50  is open at one end and is closed at the other end. The first infuser  50  has an introduction groove  52  therein so that the bone graft  30  that is ejected through a nozzle  24  inside the protrusion  22  is introduced through the introduction groove  52 . The first infuser  50  has defined a spiral groove  54  in the inner surface on one end thereof. The protrusion  22  is forcibly coupled to spiral groove  54  in the fitted state during the implantation of the bone graft  30 . In the inner surface on the other end of the first infuser  50 , a curved portion  56  having the form of an arc is formed. The curved portion  56  serves to properly guide the bone graft  30  that is ejected through the nozzle  24  of the protrusion  22 . A spiral hole  58  is formed on the lower portion of the other end of the first infuser  50 . 
         [0019]    In addition, a second bone infuser  60  is open at one end and is closed at the other end. The second bone infuser  60  has defined a spiral groove  62  in the outer circumference on one end. The spiral groove  62  is spirally coupled to the spiral hole  58  of the first infuser  50 . An introduction groove  64  is formed inside the second bone infuser  60 . The bone graft  30  that has passed through the first bone infuser  50  is introduced into the introduction groove  64 . A plurality of nozzles  66  is formed along the circumference of the other end of the second bone infuser  60 , and serves to radially eject the bone graft  30 . 
         [0020]    As shown in  FIG. 5 , another embodiment of the second infuser  60 , which is open at both ends, can be used to implant the bone graft  30 . The second infuser  60  has defined a spiral groove  62  in the outer circumference of one end thereof. The spiral groove  62  is spirally coupled to the spiral hole  58  of the first bone infuser  50 . The second bone infuser  50  does not have the multiple nozzles  66 , which are intended to radially eject the bone graft  30 , in the circumference thereof, but has defined a nozzle  68  extending through the inside thereof. 
         [0021]    In the present invention as configured above, as shown in  FIGS. 2 to 4 , when intending to implant the bone graft in a region into which an artificial dental root is to be implanted, for example, in an upper molar or the like that requires much labor, during dental implantation surgery, the first infuser  50 , which is open at one end and is closed at the other end, and the second bone infuser  60 , which is open at one end and is closed at the other end, are coupled to each other by rotation in the state in which the spiral groove  62  on the outer circumference of one end of the second infuser  60  is fitted into the spiral hole  58  in the lower portion of the other end of the first infuser  50 . 
         [0022]    Afterwards, the tube  20  filled with a predetermined amount of the bone graft  30  is integrally coupled to the first and second bone infusers  50  and  60  by forcibly pressing the conical protrusion  22 , which is formed at the leading end of tube  20 , into the open introduction groove  52  on one end of the first infuser  50  in the state in which the protrusion  22  is fitted into the introduction groove  52 . Then, the other end of the second infuser  60  is fitted into a hole that is formed in a region into which implantation is to be performed. In this state, it is possible to conveniently implant the bone graft  30  by pressing the piston  40 , which is fitted into the tube  20 , so that the bone graft  30  is ejected through the nozzle  24  of the conical protrusion  22  at the leading end of the tube  20  into the first bone infuser  50 , and then through the multiple nozzles  66  in the circumference of the other end of the second bone infuser  60  into the hole of the implanting region. 
         [0023]    In the event of implanting the bone graft  30 , the second bone infuser  60  can be substituted, if necessary, by the second bone infuser  60  having the form shown in  FIG. 5 . In a typical surgery, the implantation operation is performed using the second bone infuser  60  shown in  FIG. 5 . In the event of implanting a large amount of the bone graft  30 , the second bone infuser  60  having the multiple nozzles  66  in the circumference of the other end thereof, as shown in  FIG. 4 , is used to implant the bone graft  30  around the implanting region, and then the second bone infuser  60  having the nozzle  68  configured to extend through the inside thereof, as shown in  FIG. 5 , is used to proceed the implantation operation. 
         [0024]    In addition, since the other end of the second bone infuser  60  is fitted into a minute hole into which an artificial dental root is to be implanted, its thickness and length correspond to those of the hole that are determined according to the laryngeal width. The second bone infuser  60  can be fabricated by dividing it into regular and wide types depending on the thickness, if necessary, and into several types depending on the length, so that the bone graft  30  can be ejected at a sufficient depth without leaking out. 
         [0025]    In addition, the spiral groove  54  formed in the inner surface of one end of the first infuser  50  has the following effect: After the tube  20  made of a synthetic resin is forcibly coupled to the first infuser  50  by rotation in the state in which the protrusion  22  of the tube  20  is fitted to the spiral groove  54  of the first infuser  50 , when the piston  40  is pressed in order to implant the bone graft  30 , the bone graft  30  can be easily inserted into the first and second infusers  50  and  60  without pushing the piston  40  backward. 
         [0026]    In addition, since the curved portion  54  having the form of an arc is formed in the inner surface of the other end of the introduction groove  52  of the first infuser  50 , the bone graft  30  that is ejected through the nozzle  26  of the protrusion  22  can be guided along the curved portion  54 , thereby easily entering into the second bone infuser  60 . 
         [0027]    Furthermore, since the multiple nozzles  66  are formed in the circumference of the other end of the second bone infuser  60 , the bone graft  30  can be ejected by being radially diverged without being ejected in one direction. As a result, the bone graft  30  can be rapidly ejected so that it is uniformly distributed. 
         [0028]    Moreover, the first and second bone infusers  50  and  60  can be separately fabricated in a detachable type so that they can be reused after being sterilized. Alternatively, the first and second infusers  50  and  60  can be used by being integrally fabricated. 
         [0029]    While the present invention has been shown and described with reference to the certain exemplary embodiments thereof and the accompanying drawings, the present invention is by no means limited thereto. It will be understood that various modifications can be made therein without departing from the spirit of the present invention and within the scope of the appended claims.

Technology Category: 1