CN202589689U

CN202589689U - Artificial implant with coarse and fine threads

Info

Publication number: CN202589689U
Application number: CN 201220254181
Authority: CN
Inventors: 张土火
Original assignee: Global Allianz Technology Co ltd
Current assignee: Global Allianz Technology Co ltd
Priority date: 2012-02-06
Filing date: 2012-05-31
Publication date: 2012-12-12
Anticipated expiration: 2022-05-31
Also published as: TWM430963U

Abstract

An artificial implant with thick and thin threads is a conical cylinder, a combination hole is concavely arranged on the top end face of the implant, the combination hole is a blind hole with internal threads, the lower end edge of the implant is a first screwing area, the upper end edge of the implant is a second screwing area, the first screwing area and the second screwing area are both provided with threads, the thread pitch of the first screwing area is wide, the distance from the valley to the peak of the threads of the first screwing area is high, the thread pitch of the second screwing area is narrow, and the distance from the valley to the peak of the threads of the second screwing area is low. Therefore, the design of the threads of the first screwing area and the second screwing area is beneficial to the easiness of screwing between the implant and the jaw bone, the gripping force after hyperosteogeny is improved, the sealing property of tissue adhesion is facilitated, and the risk of bacterial infection is prevented.

Description

Body is planted in the manual work of tool thickness screw thread

Technical field

Body is planted in the manual work of the relevant a kind of tool thickness screw thread of this utility model.

Background technology

Old-fashioned artificial tooth is to utilize existing human teeth and dental bed with crane span structure mode fixed denture, but in order to cooperate the installation artificial tooth, often must carry out destructive operation to adjacent healthy tooth, and this mode is eliminated by industry gradually.New-type manual work is planted tooth and is applied in the dental care existing history for many years, and because the improvement that progresses greatly with tooth implantation technology of material significantly promotes the success rate of planting tooth; Tooth is planted in so-called manual work; Its structure mainly comprises artificial three parts such as body, a platform, crown of planting, and plants the jawbone of affected part in the implantable oral cavity of body, in order to the tooth root that replaces pulling out; Plant to design between body and the platform and combine latch-up structure; Make on the platform fixedly crown again, polyphone all-in-one-piece manual work substituent, its purpose is exactly the tooth that will replace forfeiture.See also Fig. 1, the existing body 10 of planting is a cone shape cylinder, and ora terminalis outer peripheral face is equipped with external screw thread 11 under it; Generally speaking; This external screw thread 11 be equidistance, etc. high screw thread design, and this upper surface of planting body 10 is concaved with a combined hole 12, this combined hole 12 is for having the blind hole of female thread; It is fixing to supply a platform 13 to screw togather, and can supply crown 14 secure bond again on the platform 13.Planting agomphiasis when doing according to above-mentioned existing structure, is on jawbone, to bore a tooth hole earlier, this following ora terminalis of planting body 10 is screwed in this tooth hole through external screw thread 11 again, makes to plant body 10 and imbed jawbone and only expose combined hole 12 for fixing branch platform 13 and crown 14; Multiple recovery regeneration along with this jawbone cell makes in the thread gap of jaw bone tissue hypertrophy to this external screw thread 11, and then envelopes the whole body 10 of planting, and the phase makes this plant body 10 and firmly is incorporated into jawbone.

Since the external screw thread 11 that should existing plant body 10 for equidistance, etc. high screw thread design; Though, during the skeletal tissue hypertrophy can with plant body 10 outer surface driving fits, only depend on conforming external screw thread 11 forms can't effectively show the grasping force of planting between body 10 and the skeletal tissue; In other words; Existing plant body 10 structures and possibly cause this to plant the problem that body 10 gets loose easily, not only make plant body 10 can't lotus power, the crown 14 that depends on it also is difficult to keep the ability of chewing normally.

This shows, above-mentionedly existing plant body 10 and still have disappearance, real non-one kindhearted design and necessity of improvement is arranged.

Prior art

10 ... Plant body 11 ... External screw thread

12 ... Combined hole 13 ... Prop up platform

14 ... Crown

This utility model

20 ... Plant body 21 ... Combined hole

211 ... Female thread 212 ... Bellmouth

22 ... First screws togather district 221 ... Screw thread

23 ... Second screws togather district 231 ... Screw thread

24 ... Cut groove 30 ... Prop up platform

40 ... Crown

The utility model content

The purpose of this utility model is promptly to improve that existing manual work plants that body only depends on conforming external screw thread form and the problem that can't effectively bring into play grasping force; Satisfy and a kind of easy property that is screwed into, gripping power after the promote osseous hypertrophy of helping be provided, and help to organize attaching tightness, prevent that the manual work of the tool thickness screw thread of bacterial infection risk from planting body.

For reaching this purpose, this case comprises plants body, and this is planted body and is a cone shape cylinder, and its top end face is concaved with a combined hole, and this combined hole is the blind hole with female thread; This following ora terminalis of planting body is first to screw togather the district; Last ora terminalis is second to screw togather the district; This first screws togather the district and screws togather the district and all have screw thread with second, this first screw togather the district the thread pitch broad, this first screw togather the district screw thread Luo Gu to the spiral shell peak separation from higher; Second to screw togather the thread pitch in district narrower for this, this second screw togather the district screw thread Luo Gu to the spiral shell peak separation from lower.

In preferred embodiment, this following ora terminalis of planting body is provided with and cuts groove, and this cuts groove and has sharp keen side cut, makes the ability that produces self tapping when body screws togather of planting.

In preferred embodiment, this is planted the screw thread that first of body screws togather the district and is two helicitic textures, this first screw togather the screw thread in district following spiral surface be 20 degree, spiral surface is 14.5 to spend it on; This second screw togather the district screw thread be four helicitic textures, this second screw togather the screw thread in district pitch be 0.45mm.

Thus; When planting body when being screwed into the tooth hole; First screws togather the district is screwed into darker jawbone, can push first screw togather the district screw thread increase the jawbone bone density, also through first screw togather the screw thread in district the design easy property that helps to be screwed into and the gripping power after the promote osseous hypertrophy; And second screw togather the district and be positioned at jawbone than the position, upper strata, second screw togather the screw thread in district design then help to organize the tightness of attaching, make wound destroy less, restore comparatively fast, also can prevent simultaneously and the risk that reduces bacterial infection.

Description of drawings

Fig. 1 illustrates existing insight structural map of planting body;

Fig. 2 illustrates the forward sight construction plan view of this case specific embodiment;

Fig. 3 illustrates the insight structural map of this case specific embodiment;

Fig. 4 is a portion enlarged drawing of Fig. 3;

Fig. 5 illustrates the use sketch map of this case specific embodiment.

The component symbol explanation

The specific embodiment

About this novel technology contents of addressing, characteristics and effect, in the middle of the preferred embodiment detailed description of following cooperation, can clearly appear with reference to accompanying drawing.In addition;, this case needs to specify before being described in detail; Therefore its appended accompanying drawing is a basic structure of explaining this case in a schematic way, in those accompanying drawings, only shows structure or the element relevant with this case, and the structure form that is shown, size, ratio; Or component number etc., be a kind of optionally design.

See also the forward sight construction plan view that Fig. 2 illustrates this case specific embodiment, and Fig. 3 illustrates the insight structural map of this case specific embodiment and a portion enlarged drawing among Fig. 3 shown in Figure 4.This case is to plant body 20.This is planted body 20 and is a cone shape cylinder, and its top end face is a polished land, is concaved with a combined hole 21 on it, and this combined hole 21 is for having the blind hole of female thread 211; The following ora terminalis of planting body 20 is first to screw togather district 22, and last ora terminalis is second to screw togather district 23, and this first screws togather district 22 and second and screw togather and distinguish 23 and all have screw thread 221, screw thread 231; And first screw togather district's screw thread of 22 221 and be two screw thread design; Its pitch broad, second to screw togather district's screw thread 231 of 23 be the little close screw thread design of four screw threads, its pitch is narrower; And; First screw togather district's screw thread 221 of 22 Luo Gu to the spiral shell peak separation from higher, second screw togather district 23 screw thread 231 Luo Gu to the spiral shell peak separation from lower, first to screw togather district's 22 ends be circular arc design.

Plant body 20 structures according to above-mentioned this case specific embodiment; This following ora terminalis of planting body 20 is provided with together or above together cuts groove 24; Preferable, this cuts groove 24 is three road self tapping spiral cutting trench design, and each is distributed in 120 degree angles and plants 20 times ora terminalis of body; This cuts groove and 24 has sharp keen side cut, makes the ability that produces self tapping when body 20 screws togather of planting.

Plant body 20 structures according to above-mentioned this case specific embodiment; This plants the polished land design of the top end face of body 20; Can prevent that antibacterial from giving birth to now, and combined hole 21 bottom edges that are arranged with on it have female thread 211, and be provided with a bellmouth 212 in female thread 211 tops to the top end face of planting body 20; Preferable, this bellmouth 212 is about the tapering at 22 degree angles; Through the design of this combined hole 21, more tight when platform is combined, and have the seepage of preventing, loosening situation takes place.This first screws togather 221 designs for two screw threads of district's screw thread of 22, appears with a kind of butterfly arc, and its surface area increases about 15%; Reduce stress raisers, the following spiral surface of this screw thread 221 is about 20 degree, and last spiral surface is about 14.5 degree; CME35 ° of threaded form of screw thread-like standard A and can increase bone and implant contact BIC (Bone-to-implant contact), torsion and bearing capacity, screw thread whenever turns around and implants about 1.8mm, and the depth of thread makes it can implant dentale faster more deeply; Also can be when implanting change implant angle easily, in addition, first screw togather district 22 the design of tapering shaft can effectively expand the bone ridge; Make bone finer and close; And can will plant the gmatjpdumamics born of body effectively be passed to spongy bone, avoid the bite stress concentrations in alveolar bone, help to plant body and stabilize with bone is integrated.Second to screw togather district's screw thread 231 of 23 be the design of four screw threads for this; Pitch is 0.45mm, and more generally planting body (about 0.25mm) has more depth of threat, has enough bone volume storage areas; The little close screw thread design of this screw thread 231 can increase surface area, increases the degree of stability of planting tooth initial stage bone relatively.This plants cutting groove of 20 times ora terminalis of body 24 is three road self tapping spiral cutting trench design; Except promoting the self tapping ability, more can reduce destruction to dentale, when preventing tapping crooked and implant after reverse take place; Can reduce simultaneously and bone between coefficient of friction, and then reduce the probability of head necrosis.Moreover, this first screw togather district's 22 terminal circular arc designs can prevent to perform the operation in to the injury of sinus highmori and maxillary nerve tubular construction.

See also shown in Figure 5; Through above-mentioned structure of planting body 20; Can be prior to boring a tooth hole on the jawbone; Utilize again and plant the screw thread 231 that screw thread 221 and second that body 20 first screws togather district 22 screws togather district 23 and be screwed in this tooth hole, plant body 20 and imbed jawbone and expose combined hole 21 fixing, fix crown 40 through propping up a platform 30 again for a platform 30; Multiple recovery regeneration along with the jawbone cell, make the jaw bone tissue hypertrophy to plant body 20 first screw togather district 22 screw thread 221 and second screw togather in the gap of distinguishing 23 screw thread 231, and then envelope the whole body 20 of planting, make this plant body 20 and firmly be incorporated into jawbone.

Be with cut groove 24 because the following ora terminalis of planting body 20 is provided with, and this cuts groove and 24 has sharp keen side cut, make to plant and can exempt from the tapping program when body 20 is screwed into the tooth hole, and self tapping imports easily.Moreover, because first screw togather district's screw thread 221 pitch broads of 22, Luo Gu to the spiral shell peak separation from higher; And second to screw togather district's screw thread 231 pitch of 23 narrower, Luo Gu to the spiral shell peak separation from lower, therefore; When planting body 20 when being screwed into the tooth hole, first of taper screws togather district 22 and is screwed into darker jawbone, but thread-rolling screw increases the jawbone bone density; Screw thread 221 design is with than widely-pitched, helps the easy property that is screwed into, and the Luo Gu to Luo Feng of screw thread 221 designs the gripping power after higher distance then helps the promote osseous hypertrophy; And second screw togather the district and 23 be positioned at jawbone than the position, upper strata; Second to screw togather 231 designs of district's screw thread of 23 narrower with pitch for this, Luo Gu to the spiral shell peak separation from lower, it helps to organize the tightness of attaching; Make wound destroy less, restore comparatively fast, also can prevent simultaneously and the risk that reduces bacterial infection.

By being, execute patient's surgical technic capable of using and will plant body 20 and implant patients' oral cavity affected part, treat the bone integration between osteocyte after; Make jawbone and plant body 20 and combine closely; Especially, plant body 20 and screw togather district 22 and second through first and screw togather district's screw thread 221 of 23, screw thread 231 designs, make plant tooth body 20 in execute art process to postoperative more treatment all show preferable effect; Do not receive the influence of horizontal stroke, longitudinal stress and become flexible and guarantee to plant body 20, make and plant body 20 and keep combining closely of optimum with jaw bone tissue.

Can know that from the above and embodiment shown in the drawings the structure of this case is as planting the body of planting in the dental structure, have prior art personnel plurality of advantages can't be obtained after it is implanted.The above is merely the preferred embodiment that this utility model is enumerated, and is not in order to limit the scope that this utility model is implemented.Be that all equalizations of being done according to this utility model claim scope change and modification, be all this utility model claim scope and contain.

Claims

1. body is planted in the manual work of a tool thickness screw thread, it is characterized in that, it comprises plants body, and this is planted body and is a cone shape cylinder, and its top end face is concaved with a combined hole, and this combined hole is the blind hole with female thread; This following ora terminalis of planting body is first to screw togather the district; Last ora terminalis is second to screw togather the district; This first screws togather the district and screws togather the district and all have screw thread with second, this first screw togather the district the thread pitch broad, this first screw togather the district screw thread Luo Gu to the spiral shell peak separation from higher; Second to screw togather the thread pitch in district narrower for this, this second screw togather the district screw thread Luo Gu to the spiral shell peak separation from lower.

2. body is planted in the manual work of tool thickness screw thread as claimed in claim 1, it is characterized in that, this following ora terminalis of planting body is provided with and cuts groove, and this cuts groove and has sharp keen side cut.

3. body is planted in the manual work of tool thickness screw thread as claimed in claim 1, it is characterized in that, this is planted the screw thread that first of body screws togather the district and is two helicitic textures, this first screw togather the screw thread in district following spiral surface be 20 degree, spiral surface is 14.5 to spend it on; This second screw togather the district screw thread be four helicitic textures, this second screw togather the screw thread in district pitch be 0.45mm.