CN202761466U

CN202761466U - Oral implant assembly

Info

Publication number: CN202761466U
Application number: CN 201220224956
Authority: CN
Inventors: 林野
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-10-12
Filing date: 2012-10-12
Publication date: 2013-03-06
Anticipated expiration: 2022-10-12

Abstract

The utility model provides an oral implant device. The device comprises an implant, an abutment and a fastening bolt; the implant comprises a cylindrical upper section part and a cone lower section part; the inside of the implant is provided with a three-section type cavity which is sequentially formed by an upper section conical hole, a middle section cylindrical hole and a lower section screw hole from the upper end face to the bottom; the surface of the upper section part of the implant is a smooth surface; the lower part of the upper section part of the implant is provided with micro threads; the abutment comprises a main body cone and a lower part connecting body; the lower section screw hole is provided with a cylinder and a cone which are matched with the middle section cylindrical hole and the upper section conical hole; the middle section cylindrical hole and the cylinder are respectively provided with flat top convex teeth and a flat bottom groove which are matched with each other; the fastening bolt is inserted from the abutment and is in threaded connection with the screw hole; and a cone angle of the cone lower section part is 30 to 45 degrees. The oral implant device has the advantages of simplicity of operation, good postoperative primary stability, good sealing performance, high reliability, excellent abutment rotation resistance and platform conversion structure, capability of reducing or avoiding bone resorption and the like.

Description

A kind of mouth cavity planting body assembly

Technical field:

This utility model relates to the dental device, is specifically related to the implantation body's device in a kind of alveolar bone.

Background technology:

Along with modern society's demand growing to the oral cavity repairing and treating, traditional fixed denture and removable denture seem aspect much and more and more are difficult to satisfy people's hope, tooth-planting artificial tooth technology is since being invented the sixties in last century, some left spaces of conventional repair techniques limitation have not only been filled up, and development is ripe, aspect a lot of, demonstrate superiority, accepting plantation reparation person has had almost the same with natural teeth masticatory function impression, and aesthstic impression the same with natural teeth even that surmount to some extent.Extensively the carrying out and use the problem that has solved on a series of attractive in appearance and function that absence of tooth clinically brings of tooth-planting artificial tooth, yet, operative process is complicated, primary stability is not good, bone resorption occurs, be difficult in place in the repair process between implantation body and the base station, thereby chewing in the process causes the slit generation to cause leakage because of the stressed base station that makes with respect to the trace movement of implantation body, the problems such as the top parts can become flexible, these all may cause planting the undesirable or repairing failure of repairing effect.

For above-mentioned deficiency, the inventor has created a kind of mouth cavity planting body assembly.Utility model patent number is ZL200820225790.3, comprising implantation body, base station and holding screw.Primary stability after the weak point of this utility model is to implant is slightly poor, the assembling between base station and implantation body is in place not too smooth and easy.

The utility model content:

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provide that a kind of novel structure, processing ease, stability are high, good airproof performance, no-float, be difficult for loosening, can reduce bone resorption, the mouth cavity planting body device of different base station connected modes can be provided.

A kind of mouth cavity planting body assembly that this utility model provides, said assembly comprises implantation body and base station, the fastening bolt of the described implantation body of coaxial connection and said base station, said fastening bolt one end is connected in the base station, and it is outer and be spirally connected with implantation body one end that the other end extends to base station; Cavity in the said implantation body comprises epimere conical bore, stage casing cylindrical hole and hypomere screw hole from top to bottom successively; Said epimere conical bore, the aperture of stage casing cylindrical hole and hypomere screw hole dwindles successively, at the epimere conical bore, the junction of stage casing cylindrical hole and hypomere screw hole forms step, said epimere conical bore comprises the cavity with reducing pipe structure, described stage casing cylindrical hole inwall is provided with the flat-top double wedge, described flat-top double wedge comprises block-shaped protrusion, described hypomere screw hole inwall is provided with the screw thread that is spirally connected with fastening bolt, described implantation body outer wall comprises cylindrical epimere section and conical hypomere section from top to bottom successively, the surface of epimere section of said implantation body is smooth surface, said smooth surface has screw thread, and the coning angle of said conical hypomere section is the 30-45 degree; Said base station comprises structure of tube body, comprise main body circular cone and bottom connector, said main body circular cone is cone-shaped, form step at the cavity of main body circular cone and the cavity intersection of bottom connector, described step and fastening bolt clamping, said bottom connector comprises cylinder and cone, and said cylinder and cone are set with stage casing cylindrical hole and epimere conical bore respectively, and said cylinder is provided with the flat-bottom slot that cooperatively interacts with the flat-top double wedge.

The coning angle of conical hypomere of the present utility model section is between the 30-45 degree, this short cone is in screwing in bone the time, be different from the conical implantation body of cylindrical implant and micro taper, it can make the multi-turn screw thread participate in simultaneously pushing the bone hole or utilize self tapping cutting edge cutting bone hole to form female thread, on the other hand, it is highly beneficial for the cortical bone that screws in another side (opposite): in the situation that there is spongy bone to have (for example, Lekholm﹠amp in the bone; 3 type bones of Zarb classification), utilization for the another side cortical bone is restricted, be different from the utilization to screw terminal (one side in standby hole) cortical bone, the strict controlling depth of palpus is in order to avoid perforation or fracture, therefore, behind suitably standby hole, implantation body's tapered tail that this short conical hypomere section and ball-shaped end section consist of can suitably embed in the cortical bone of opposite, such implantation body's profile namely is conducive to extruding or self tapping screws in, also be conducive to utilize double-deck cortical bone to fix implantation body, taper shape hypomere section which is provided with external screw thread, the form of thread is asymmetric trapezoidal and all be provided with transition arc in the root both sides, this can increase the contact area with bone greatly, improve the primary stability after implanting, and the increase along with implantation body's implantation depth can obtain suitable bone compression effectiveness when implanting, and the preparation in plantation nest hole is also relatively easily grasped, therefore have the surgical characteristic more superior than simple cylindrical outer shape, cylindrical epimere section surface is provided with smooth section and little thread segment, little screw thread also can increase with the contact area of bone stable with increase primary stability and favourable long-term synosteosis, little screw thread is bull, pitch is between 0.18 to 0.35mm, helical pitch equates with externally threaded pitch, so that pitch and helical pitch anisochrouous bone dissection can not appear when implanting in synchronous rotary, in little conical hypomere section of implantation body from spherical end, be provided with 1-4 cutting slot, utilize these cutting slots that implantation body's self tapping is screwed in the bone hole during operation.

Cylindrical hole is provided with 1-3 flat-top double wedge in this utility model implantation body, its with the cylinder of base station bottom connector on flat-bottom slot is mutually nested cooperates, to prevent that base station from rotating also base station is located in a circumferential direction, the quantity of flat-bottom slot is the integral multiple of flat-top double wedge quantity, for example, when being provided with a flat-top double wedge in the implantation body, can be provided with 1 on the connector of base station bottom, 2,3 or 4 flat-bottom slots, the maximum quantity of groove is restricted, relevant with the factors such as size of cylindrical diameter and surface size and flat-top double wedge itself, in the implantation body cylindrical hole itself also with the base station connector on cylinder cooperatively interact.

This utility model has been created two kinds of base stations, the first base station is preferred base station, its main body circular cone is used for bearing the corona assembly, be provided with inner arc surface body changeover portion between itself and connector, so that base station stretches out the diameter at implantation body's end face that is implantation body platform place less than the external diameter of implantation body's end face, implantation body's end face platform is converted into the structure division of base station therefrom, both platform transformational structures, and traditional implantation body's end face platform contacts cooperation with the base station corresponding platform, the diameter of contact position is identical, studies show that, this platform combination is to cause that the rear bone recession of plantation is one of reason of bone resorption, but not unique reason, therefore, the advantage of this platform transformational structure of this utility model is exactly, the space that forms between this inner arc surface body of base station and implantation body's end face is used for formation and the existence of soft tissue, make artificial tooth in use issuable fine motion in top leave the junction of alveolar bone and implantation body, also make issuable local soft tissue inflammation leave alveolar bone, thereby reduce or eliminate the generation of bone resorption.

Taper seat has been adopted in combination between the first base station of the present utility model and implantation body, be that implantation body's internal conical surface and base station cone cooperatively interact, since taper seat cooperate can absorption axes to the gap of both direction radially, therefore can provide superior sealing property in case stopping leak reveals, the cannelure on the connector of base station bottom is used for preventing that taper seat is connected the Assembly Interference of junction with the face of cylinder.

The base station that this utility model optimal technical scheme provides is that a kind of " waiting platform " cooperates base station, the base station platform is the annular lower surface of short cylinder in the middle of the base station, with the implantation body platform be implantation body's end face, be in contact with one another cooperation, the platform diameter of base station and implantation body is identical herein, the base station of this fit system more selects for the plantation dentist, abundant operation and the reparation experience of in the past accumulation can be played a role, and this base station can realize that three kinds of cooperations are combination: wait the combination of combination, cylinder and the cylindrical hole of platform combination, short taper seat and conical bore.

The end of the base station bottom connector in this utility model optimal technical scheme is provided with short cylinder, has guiding function during assembling, be convenient to base station is inserted in the implantation body, and cylindrical edge is provided with fillet, the edge of short cylinder is also with fillet, these fillets all can make the assembling action more smooth and easy, as for the toroidal of flat-bottom slot opening part, also can make and assemble in place becoming easily with smooth and easy.

Fastening bolt head lower end is 55-75 degree root cone in this utility model, cooperates with corresponding internal conical surface in the base station inner step hole, can increase contact area each other, improves the stability and the reliability that are fastenedly connected.

The actual proof of using, technical scheme that this utility model provides real, good airproof performance, no-float high for a kind of novel structure, processing ease, stability, be difficult for loosening and can reduce the technical scheme of bone resorption, the mouth cavity planting body device of different base station connected modes can be provided.

Description of drawings:

Fig. 1 is structural representation of the present utility model;

Fig. 2 is this utility model implantation body structural representation;

Fig. 3 is flat-top double wedge partial structurtes enlarged diagram in this use Novel planting body;

Fig. 4 is this utility model implantation body external screw thread thread form structure enlarged diagram;

Fig. 5 is this utility model implantation body end structural representation;

Fig. 6 is this utility model the first abutment structure schematic diagram;

Fig. 7 is this utility model the first base station bottom connector end structural representation;

Fig. 8 is this utility model fastening bolt structure schematic diagram;

Fig. 9 is this utility model the second abutment structure schematic diagram;

Figure 10 is the assembly structure schematic diagram between this utility model the second base station and implantation body;

Labelling among the figure: implantation body 1, the first base station 2, fastening bolt 3, cylindrical epimere section 4, little conical hypomere section 5, implantation body's end face 6, conical bore 7, cylindrical hole 8, flat-top double wedge 9, end face chamfering 10, smooth surface 11, little screw thread 12, external screw thread 13, screwed hole 14, cutting slot 15, bulb 16, main body circular cone 20, bottom connector 21, inner step hole 22, inner arc surface body 23, cone 24, shallow cannelure 25, cylinder 26, flat-bottom slot 27, short cylinder 28, short cylinder fillet 29, cylinder fillet 30, interior hexagonal hole 31, cheese head 32, root cone 33, bar section 34, bolt thread 35, the second base station 200, base station main body 201, middle short cylinder 202, the bottom connector 203 of the second base station, annular lower surface 204, short cone 205, flat-top double wedge right flank 901, flat-top double wedge left surface 902, flat-top double wedge end face 903.

The specific embodiment:

Below in conjunction with accompanying drawing utility model is further described:

Shown in accompanying drawing 1-10, a kind of mouth cavity planting body assembly comprises implantation body 1, base station 2 and fastening bolt 3, and implantation body 1 comprises cylindrical epimere section 4 and conical hypomere section 5; Be provided with from the upper surface the 6 syllogic cavitys that are followed successively by epimere conical bore 7, stage casing cylindrical hole 8 and hypomere screw hole 14 downwards in the implantation body, and the surface of epimere section of implantation body is smooth surface 11, it has screw thread 12; Said base station 2 comprises main body circular cone 20 and bottom connector 21, and said bottom connector 21 is provided with cylinder 26 and the cone 24 that matches with stage casing cylindrical hole 8 and epimere conical bore 7, and said fastening bolt 3 is by penetrating in the base station 1 and being spirally connected with screw hole 14; The coning angle of said conical hypomere section 5 is the 30-45 degree.

The cone angle of the little conical hypomere section 5 of implantation body 1 is very little, cone angle is between the 2-6 degree, it is little bullet, which is provided with external screw thread 13, the form of thread is asymmetric trapezoidal and all be provided with transition arc in the root both sides, cylindrical epimere section 4 surfaces are provided with smooth section 11 and little thread segment 12, the length of respectively occupying about 1/2 cylindrical epimere section, little screw thread is bull, pitch is between 0.18 to 0.35mm, little number of starts equals its pitch except the merchant of external screw thread 13 pitch gained and must can be divided evenly, and the helical pitch of little screw thread equates with the pitch of external screw thread 13, pitch and helical pitch anisochrouous screw thread appear when implanting to prevent from rotating to the dissection of bone, in little conical hypomere section of implantation body from spherical end 16, be provided with 1-4 cutting slot 15, flute profile is an angle of 90 degrees shape, utilizes these cutting slots that implantation body's self tapping is screwed in the bone hole during implant surgery.

Cylindrical hole 8 is provided with 1-3 flat-top double wedge 9 in the implantation body, its with the cylinder 26 of base station bottom connector 21 on 27 mutually nested cooperations of flat-bottom slot, the quantity of flat-bottom slot is the integral multiple of flat-top double wedge quantity, for example, when being provided with a flat-top double wedge in the implantation body, can be provided with 1 on the connector of base station bottom, 2,3 or 4 flat-bottom slots, when a plurality of groove is arranged, base station in being assembled to implantation body the time just relatively implantation body turn over certain angle, when 2 grooves are for example arranged, can turn over 180 degree, namely have two angle positions available, the maximum quantity of groove is restricted, is not infinitely to increase, diameter and surface area size with cylinder 26, and the size of flat-top double wedge itself etc. has relation, in the implantation body cylindrical hole 8 itself also with base station bottom connector on cylinder 26 cooperatively interact.

This utility model has been created two kinds of base stations, the first base station 2 is preferred base stations, its main body circular cone 20 is used for bearing the corona assembly, itself and 21 of connectors are provided with inner arc surface body changeover portion 23, so that base station stretches out the diameter at implantation body's end face that is implantation body's platform 6 places less than the external diameter of implantation body's end face, implantation body's end face 6 platforms are converted into the structure division of base station therefrom, both platform transformational structures, and the space between inner arc surface body 23 and implantation body's end face 6 platforms can allow soft tissue growth and existence.

Taper seat has been adopted in combination between the first base station and implantation body, be that implantation body's internal conical surface 7 cooperatively interacts with base station cone 24, since taper seat cooperate can absorption axes to the gap of both direction radially, therefore can provide superior sealing property in case stopping leak reveals, cannelure 25 on the connector of base station bottom is used for preventing that taper seat is connected the Assembly Interference of junction rib with the face of cylinder, and rib of not being combined with this connection of implantation body touches mutually in conjunction with the rib empty avoiding to make this of base station.

The second base station 200 is that a kind of " waiting platform " cooperates base station, the base station platform is the annular lower surface 204 of short cylinder 202 in the middle of the base station, with the implantation body platform be implantation body's end face 6, be in contact with one another cooperation, the diameter of these two platforms is identical, the base station of this fit system more selects for the plantation dentist, abundant operation and the reparation experience of in the past accumulation can be played a role, this base station can realize that three kinds of cooperations are combination: wait the platform combination, the combination of short cone 205 and conical bore 7, the combination of cylinder 26 and cylindrical hole 8, the platform of wherein realizing simultaneously is that a kind of high accuracy cooperates in conjunction with being combined with taper seat, arrange short cone 205 can make its up and down all empty avoiding to avoid the Assembly Interference phenomenon: namely taper seat and the face of cylinder is connected the junction rib for base station-entity or positive part, with implantation body-cavity be that negative part touches, thereby cause having rib male and female face both can not be in contact with one another well cooperation.

The end of base station bottom connector 21 is provided with short cylinder 28, has guiding function during assembling, be convenient to base station is inserted in the implantation body, and the edge of cylinder 26 is provided with fillet 30, the edge of short cylinder 28 is also all with fillet 29, these fillets all can make the assembling action more smooth and easy, and the toroidal of flat-bottom slot 27 opening parts also can make and assemble in place becoming easily with smooth and easy.

Fastening bolt head lower end is 55-75 degree root cone 33, cooperates with the corresponding internal conical surface in 22 li in base station inner step hole, can increase contact area each other, improves the stability and the reliability that are fastenedly connected, that is has certain locking effect.

The beneficial effects of the utility model are: 1, implantation body is comprised of cylinder and micro taper cone, is convenient to preparation plantation nest hole, can obtain suitable bone compression effectiveness, is convenient to implant, and shortens operating time.2, cylindrical epimere section is that cervical region is divided into two sections, and smooth section and little thread segment can provide good contact to increase primary stability and to be conducive to long-term synosteosis stability for this part and top layer bone.3, little conical hypomere section outer surface is provided with the trapezoidal external screw thread of asymmetric circular arc root, can greatly increase the contact area with bone, and good postoperative primary stability and long-term synosteosis stability are provided.4, the connected mode that adopts taper seat, circle to lean on face and flat-top double wedge between implantation body and base station can provide fabulous sealing, higher connection precision and reliability, and the good anti-verticity of base station.5, have the base station of platform transformational structure and the connected mode between implantation body, can help to reduce or eliminate the generation of bone resorption.6, the base station of contact with platform mode and the connected mode between implantation body such as have, the dentist provides more choices for plantation, can select dissimilar base station for different patients and concrete condition, 7, the coning angle of taper shape hypomere section is between the 30-45 degree, when making cone in screwing in bone, the multi-turn screw thread can participate in simultaneously pushing the bone hole or utilize self tapping cutting edge cutting bone hole to form female thread, on the other hand, it is highly beneficial for the cortical bone that screws in another side (opposite): in the situation that there is spongy bone to exist in the bone, utilization for the another side cortical bone is restricted, be different from the utilization to screw terminal (one side in standby hole) cortical bone, the strict controlling depth of palpus is in order to avoid perforation or fracture, therefore, behind suitably standby hole, implantation body's tapered tail that this short conical hypomere section and ball-shaped end section consist of can suitably embed in the cortical bone of opposite, and such implantation body's profile namely is conducive to extruding or self tapping screws in, and also is conducive to utilize double-deck cortical bone to fix implantation body.

It should be noted that at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment this utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1. mouth cavity planting body assembly, said assembly comprises implantation body (1) and base station (2), the fastening bolt (3) that it is characterized in that the described implantation body of coaxial connection (1) and said base station (2), said fastening bolt (3) one ends are connected in the base station (1), and it is outer and be spirally connected with implantation body (1) one end that the other end extends to base station (1); Cavity in the said implantation body comprises epimere conical bore (7), stage casing cylindrical hole (8) and hypomere screw hole (14) from top to bottom successively; Said epimere conical bore (7), the aperture of stage casing cylindrical hole (8) and hypomere screw hole (14) dwindles successively, in epimere conical bore (7), the junction of stage casing cylindrical hole (8) and hypomere screw hole (14) forms step, said epimere conical bore (7) comprises the cavity with reducing pipe structure, described stage casing cylindrical hole (8) inwall is provided with flat-top double wedge (9), described flat-top double wedge (9) comprises block-shaped protrusion, described hypomere screw hole (14) inwall is provided with the screw thread that is spirally connected with fastening bolt (3), described implantation body outer wall comprises cylindrical epimere section (4) and conical hypomere section (5) from top to bottom successively, the surface of epimere section of said implantation body (4) is smooth surface (11), said smooth surface (11) has screw thread (12), and the coning angle of said conical hypomere section (5) is the 30-45 degree; Said base station (2) comprises structure of tube body, comprise main body circular cone (20) and bottom connector (21), said main body circular cone (20) is cone-shaped, form step at the cavity of main body circular cone (20) and the cavity intersection of bottom connector (21), described step and fastening bolt (3) clamping, said bottom connector (21) comprises cylinder (26) and cone (24), said cylinder (26) and cone (24) are set with stage casing cylindrical hole (8) and epimere conical bore (7) respectively, and said cylinder (26) is provided with the flat-bottom slot (27) that cooperatively interacts with flat-top double wedge (9).

2. a kind of mouth cavity planting body assembly according to claim 1 is characterized in that the pitch of said screw thread (12) is between 0.18 to 0.35mm.

3. a kind of mouth cavity planting body assembly according to claim 1, it is characterized in that conical hypomere section of said implantation body (5) is provided with external screw thread (13), this external screw thread (13) is shallow withdrawing from gradually in cylindrical epimere section and conical hypomere section junction, the form of thread is asymmetric trapezoidal, and there is transition arc the root both sides.

4. a kind of mouth cavity planting body assembly according to claim 1, it is characterized in that cylindrical hole in the implantation body (8) is provided with 1-3 double wedge (9), and two sides (901) and (902) are parallel to each other and all perpendicular to end face (903).

5. a kind of mouth cavity planting body assembly according to claim 1 is characterized in that being provided with inner arc surface body changeover portion (23) between the main body circular cone (20) of the first base station (2) and bottom connector (21).

According to claim 1 or a kind of mouth cavity planting body assembly claimed in claim 6 it is characterized in that the cylinder (26) on said base station (2) bottom connector (21) is provided with shallow cannelure (25), and flat-bottom slot (27) and opening are bell mouth shape.

7. a kind of mouth cavity planting body assembly according to claim 1 is characterized in that being provided with mediate cylindrical (202) between the base station main body (201) of base station (2) and bottom connector (203), and annular lower surface (204).

8. a kind of mouth cavity planting body assembly according to claim 7 is characterized in that the annular lower surface (204) of the middle said cylinder of said base station (202) has cone (205).

9. a kind of mouth cavity planting body assembly according to claim 5, the edge that it is characterized in that the cylinder (26) on the said base station bottom connector (21) is provided with fillet (30), it has a short cylinder (28), and the edge of this short cylinder also is provided with fillet (29).

10. a kind of mouth cavity planting body assembly according to claim 6, the edge that it is characterized in that the cylinder (26) on the said base station bottom connector (21) is provided with fillet (30), it has a short cylinder (28), and the edge of this short cylinder also is provided with fillet (29).