the present invention will now be described more fully hereinafter with reference to the accompanying drawings , in which preferred embodiments thereof are shown . fig2 is an exploded perspective view showing an embodiment of the present invention , fig3 is a perspective view showing the assembled state of fig2 , fig4 is a longitudinal cross - sectional view showing the assembled state of fig2 , and fig5 is a longitudinal cross - sectional view showing another embodiment of the present invention . as shown in fig2 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 . 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 . 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 . as shown in fig5 , 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 . in the present invention as configured above , as shown in fig2 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 . 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 . 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 fig5 . in a typical surgery , the implantation operation is performed using the second bone infuser 60 shown in fig5 . 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 fig4 , 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 fig5 , is used to proceed the implantation operation . 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 . 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 . 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 . 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 . 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 . 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 .
the present disclosure provides a dental device comprising : a tube having a cone - shape protrusion ; a first bone infuser containing a spiral groove formed at the top end , a spiral hole formed on a cylindrical body , and an introduction groove formed in the first bone infuser ; and a second bone infuser containing a spiral groove configured to mate with the spiral hole of the first infuser , a plurality of nozzles , and an introduction groove formed in the second bone infuser .