with reference now to the drawings , and particularly to fig1 - 3b thereof , an improved surgical device for elevating the schneiderian membrane embodying the principles and concepts of the present invention . according to fig1 , the surgical device for elevating the schneiderian membrane includes a main portion 1 and a handle portion 2 . the main portion 1 comprises a main means 3 and an adjustment means 4 . the main means 3 comprises an adjustment portion 5 and a first connection section 9 ( see fig1 ). the fig1 conditionally depicts the straight configuration of the main means 3 . the fig2 a , 2 b and 2 c illustrate the main portion 1 comprising the main means 3 including also an outer thread 6 , a free end 7 , and a depth measurement marks 8 , the fig2 a illustrates the straight configuration of the main means 3 and fig2 b illustrates the angled configuration of the main means 3 . the top view 34 - 34 of the angled configuration is shown in fig2 c . the adjustment means 4 is shown in fig3 a and comprises a cylinder 10 , an inner thread 11 and a first projection 22 and a second projection 23 ( see also fig1 - 2c ). the projections 22 and 23 are located along axis 31 . the first 22 and second 23 projections can be extended from the cylinder 10 or may be attached ( not shown ) to the cylinder 10 of the adjustment means 4 . the second projection 23 is diametrically opposed from the first projection 22 . referring fig3 b , the adjustment portion 5 includes an outer thread 6 along the adjustment portion 5 . the diameter “ d ” ( a first diameter ) of the adjustment portion 5 is slightly bigger than the diameter “ d ” ( a second diameter ) of the main means 3 of the main portion 1 . the difference between the radiuses ( not shown ) of the adjustment portion 5 and main means 3 is at least slightly bigger than the thickness of the outer thread 6 . the main portion 1 may be produced of the different diameters “ d ”, depending on the size of the installing dental implant ( not shown ), and commonly “ d ” may be in the range of approximately 2 mm - 6 mm ( wherein “ mm ” means millimeters ). the handle portion 2 , shown in fig1 , includes a handle means 12 , a second connection section 13 , and a texture 14 . the second connection section 13 is located at a first end of said handle portion 2 and the texture 14 is located in an area of a second end of the handle portion 2 . the second end of the handle portion 1 is opposite to the first end of said handle portion 1 . the handle means 12 of handle portion 2 may not include the texture 14 , but the texture may prevent the dentist &# 39 ; s hand sliding along the handle means 12 during procedure of the lifting of the schneiderian membrane 15 , thereby , causing the traumatization or even injury ( e . g ., puncture , etc .) of the thin membrane 15 . the main means 3 of the main portion 1 may have a straight configuration ( fig1 and 2a ) or may be of the angled configuration , as it is shown in fig2 b and 2c ( in fig2 b , 2 c are shown the front and top projections ( views ) of the angled main means 3 respectively ). the angled main means 3 is designed to aid in the proper positioning of the improved device during the lifting procedure . it should be recognized that the main means 3 of the main portion 1 may be of any geometrical configuration which are not show herein . the angle “ β ”, shown in fig2 c ( view 34 - 34 ), commonly may be in the range of approximately 90 °- 180 °. the angle “ μ ” ( fig2 b ) commonly may be in the range of 0 °- 150 °. it is understood , that when μ = 0 ° and β = 180 ° the main means 3 has a straight configuration . also , it is understood that the angled portion of the main means 3 may be bended under the curves ( not shown ) and not under the “ sharp ” angles , as it is conventionally shown in fig2 b . as it is shown in fig1 and 2a , 2 b , the main means 3 of the main portion 1 includes a first connection section 9 which is located at another side ( a second side ) of said main means 3 ( the side opposite to the side of location of the free end 7 ) and coupled with the second connection section 13 of the handle portion 2 . in fig1 , 2 a , 2 b conditionally shown the threaded coupling of the first connection section 9 of the main portion 1 with the second connection section 13 of the handle portion 2 via a first thread 28 and a second thread 29 respectively ( fig1 ), but it may be used any reasonably convenient principles of coupling ( for instance , the tighten ( friction ) coupling ( not shown ), locking coupling ( not shown ), etc .). as it is understood from the figures herein , the first connection section 9 ( comprising the first thread 28 ) and the second connection section 13 ( comprising the second thread 29 ) form the connecting means 30 . the main portions 1 of the different diameters “ d ” are interchangeable to be used for the same handle portion 2 . also , according to fig1 and 2a , 2 b and 2 c , the free end 7 is located at the one side ( a first side ) of said main means 3 and comprises a semispherical configuration , but it may be of any reasonable not sharp configuration . additionally , the surfaces of the main means 3 and specially of the free end 7 should have the smooth preferably fine ( well polished ) surfaces in order not to traumatize ( injure ) the gum 18 , walls of the tooth channel ( socket ) 16 , jaw bone 20 , and the membrane 15 during its lifting . the improved device for dental implant installation operates as follows . the improved device provide the preparation for growing of maxillary jaw bone ( alveolar bone ) in order to obtain adequate volume of osseous structure ( e . g ., draft material ) and the installation of the dental implant in the grown maxillary jaw bone . preferably , the lifting and lateral separation of the membrane from the sinus compartment floor is accomplished by the use of the improved device . according to fig4 , the free end 7 of the main means 3 of the main portion 1 is initially inserted into the tooth socket 16 in such manner , that the depth of the inserted portion , measured by the depth measurement marks 8 , is adequate , for instance , to the length , measured for example via x - ray treatment ) from the lower surface 17 of the gum 18 to the upper surface 19 of the bone 20 . the upper surface 19 of the maxillary bone 20 is a floor of the sinus compartment 21 on which the schneiderian membrane 15 is rested . the adjustment means 4 is initially adjusted in such manner , that the tops 24 and 25 of the projections respectively 22 and 23 are coincide with the depth measurement mark 8 , which adequate to the length from the lower surface of the gum to the vertex point of the lifted membrane 15 . after these steps , the dentist continue to insert the main means 3 deeper through the socket 16 , thereby , laterally lifting the membrane 15 from the floor of the sinus compartment 21 until the projections 22 and 23 will lean ( rest ) on the gum 18 ( the upper surface 19 of the bone 20 is a floor of the sinus compartment 21 ). the elevated membrane 15 forms the draft material pocket 26 to be filled with the draft material ( not shown ) after the improved device will be pulled out of the socket 16 and replaced with the draft material filler ( not shown ). then the dental implant ( not shown ) may be installed into the socket ( tooth channel ) 16 ( or may be installed later after the bone draft material and jaw bone will achieve the solid formation ). this procedure of the membrane 15 lateral release and elevation is continued until a planned amount of the volume of the pocket 26 will achieve the a priory predetermined size . in the fig4 is illustrated the insertion of the main means 3 of the main portion 1 of the improved device between the teeth 27 , but the improved device may be used when socket 16 is not surrounded by the teeth . in such circumstances the projections 22 and 23 may have another configuration and / or sizes , etc . for instance , the projections 22 and 23 may be of the elongated configuration ( fig5 ) or any other reasonable geometric configuration ( not shown ) and / or size ( not shown ). the free end 7 is shown of hemi - spherical configuration , but it may be of any reasonable configuration and size . it should be understood that the term / word “ configuration ” herein above and bellow means any possible regular or irregular form , shape , etc . it should be understood , that the projections 22 and 23 in fig4 are , for example , shown in such position of the adjustment means 4 , that the axis 31 ( fig3 a ) of the projections 22 and 23 is coincide with the line of the teeth 27 ( the axis 31 is located along the jaw bone 20 ) and projections 22 , 23 rest on the gum 18 , but the projections 22 and 23 can rest on the bone 20 ( the rest on the bone 20 is not shown ). preferably during dental procedure for the schneiderian membrane 15 lifting , the tops 24 and 25 respectively of the projections 22 and 23 rest on the jaw bone 20 at the position of the adjustment means 4 when the axis 31 of the projections 22 , 23 is approximately perpendicular ( not shown ) to the jaw bone 20 ( the axis 31 is perpendicular [ approximately perpendicular ] to the line of the teeth 27 [ approximately perpendicular { not shown } to the gum 18 ]), and wherein the bone 20 is in advance temporarily surgically freed of the gum 18 ( not shown ) in the place ( not shown ) of the dental surgical procedure for the membrane 15 lifting and dental implant ( not shown ) installation . as it is mentioned herein above , the projections 22 , 23 can be of any reasonable configuration , and , for example , can be of the form of the first and second wings 32 , 33 elongated in the direction of the axis 31 , as it is shown in fig5 . a first wing 32 corresponds to the first projection 22 and a second wing 33 corresponds to the second projection 23 . again , it should be understood , that the wings 32 and 33 can extend from the cylinder 10 of the adjustment means 4 or can be attached ( not shown ) to the cylinder 10 of the adjustment means 4 , and may be of any reasonable configuration / shape ( not shown ) different to the shape of wings 32 , 33 shown in fig5 . it should be also understood that the main portion 1 and handle portion 2 may not be separable / detachable ( not shown ) and the improved device can be as a one solid entire piece configuration ( not as the coupled separate portions [ e . g ., fig1 ]). for example , the main portion 1 can extend from the handle portion 2 [ not shown ], etc . all components , means may be made of any reasonably safe and hygienic material and preferably of the surgical steel . accordingly the reader will see that , according to the invention , i have provided an improved surgical device for elevating the schneiderian membrane . there has thus been outlined , rather broadly , the more important features of the invention . in this respect , it is understood that the invention is not limited in its application to the details of steps , construction and to the arrangements of the components set forth in the description and / or drawings . the invention is capable of other embodiments and of being practiced and carried out in various ways . also , it is to be understood that the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting . while the above description contains many specificities , these should not construed as limitations on the scope of the invention , but as exemplification of the presently - preferred embodiments thereof . many other ramifications are possible within the teaching to the invention . for example , an improved surgical device for elevating the schneiderian membrane can be successfully used not only for installation of the dental implants in the maxillary jaw bone , but also for installation of the dental implants in the mandibular jaw bone by growing of alveolar bone in order to obtain adequate volume of osseous structure . as such , those skilled in the art will appreciate that the conception , upon which this disclosure is based , may readily be utilized as a basis for the designing of other structures , for carrying out the several purpose of the present invention . it is important , therefore , that the claims be regarded as including such equivalent constructions insofar as they do not depart from the spirit and scope of the present invention .
this invention provides the safe elevation of the schneiderian membrane for the tissue regeneration especially bone augmentation for dental implant before surgical placement of the dental implants in the grown maxillary jaw bone in order to obtain adequate volume of osseous structure by addition of the artificial bone draft material . a surgical device can include a main portion , a handle portion , a main element , an adjustment mechanism , an adjustment portion , an outer thread , a free end , a depth measurement marks , the first and second connection sections , a cylinder , the inner and outer threads , the first and second projections , and a handle element with a texture .