CN202960830U

CN202960830U - Jawbone restoration body

Info

Publication number: CN202960830U
Application number: CN 201220633568
Authority: CN
Inventors: 张卫平
Original assignee: Beijing AK Medical Co Ltd
Current assignee: Beijing AK Medical Co Ltd
Priority date: 2012-11-26
Filing date: 2012-11-26
Publication date: 2013-06-05
Anticipated expiration: 2022-11-26

Abstract

The utility model provides a jawbone restoration body which is arranged at the position of deficiency of physiological jawbone for a patient to replace the physiological jawbone. The jawbone restoration body comprises a jawbone restoration main body and a sclerotin fusion face, wherein the shape of the jawbone restoration body is the same with the shape of the physiological jawbone, the scelerotin fusion face is arranged on the face where the jawbone restoration main body is combined with the adjacent physiological jawbone, the sclerotin fusion face is provided with a cellular structure to provide bone cells for growing into. According to the jawbone restoration body, the technical scheme includes that the height of the jawbone restoration body is similar to the height of the deficient physiological jawbone of the patient in shape, a closed coloboma position is fully filled, the position fixing is good, and the sclerotin fusion face which is convenient to grow into for the bone cells is arranged, and the jawbone restoration body is beneficial for long-time bone fusion of the restoration body and the physiological bone.

Description

The jawbone dummy

Technical field

This utility model relates to medical science prosthesis field, in particular to a kind of jawbone dummy.

Background technology

On cranium jaw face, mandibular defect is comparatively common in clinical case.Jaw facial cyst and tumor, acute and chronic osteomyelitis of jaws, osteoradionecrosis, the serious diseases such as wound, infection and congenital hereditary can cause mandibular bone partly or entirely excision or forfeiture, make the bone structure seriality interrupt, and damaged with adjacent soft tissue how.Jaw defect have a strong impact on the patient language, breathe, chew, swallow and the physiological function such as face appearance, make the Quality of Life degradation.

At present, clinical jaw defect Therapeutic Method commonly used comprises autologous bone transplanting, homogeneous allogenic bone transplantation, distraction osteogenesis and bone tissue engineer technology etc., but still the problem such as it is undesirable to exist defect location to fill sealing, and maintenance is poor, and moulding and appearance is recovered to be difficult to reach Perfect Reconstruction with coupling.Recently also there is the metal of employing Rapid Manufacturing Technology to set up the three-dimensional skeleton model of defect by the CT scan data and by the method for the CNC Machine Tools such as machining center to the direct machine-shaping prosthesis of metal material, solved to a certain extent the initial stage fixation problem, but sclerous tissues at a specified future date combination and muscle ligament group soft tissue adhesion effect are still undesirable.

The utility model content

This utility model aims to provide a kind of jawbone dummy, be difficult to solve jawbone recovery technique of the prior art the jawbone prosthese that Perfect Reconstruction shape and physiology bone meet, exist defect location to fill sealing undesirable, the sclerous tissues at a specified future date of the problem that maintenance is poor and the prosthesis directly processed with metal is in conjunction with the undesirable problem of effect.

To achieve these goals, this utility model provides a kind of jawbone dummy, is arranged on the alternative physiology jawbone in position that the patient lacks the physiology jawbone, and comprising: jawbone is repaired main body, and is identical with physiology jawbone shape; The bony fusion face is arranged on jawbone and repairs on synestotic of main body and adjacent physiology; The bony fusion mask has microcellular structure to grow into for osteocyte.

Further, jawbone reparation main body comprises that upper jaw bone is repaired main body and/or mandibular bone is repaired main body.

Further, upper jaw bone repair main body comprise one or more structures in physiology upper tooth jaw district, anterior nasal spine, eye socket lower edge, zygomatic process structure partly or entirely.

Further, mandibular bone repair main body comprise physiology lower tooth jaw district, lower jaw member, angle of mandible, mandibular ramus, coronoid process, condyle prominent in one or more structures partly or entirely.

Further, it is one-body molded that jawbone is repaired main body.

Further, also comprise, tendon or soft tissue attachment region are arranged on jawbone and repair on the face that joins with physiology ligament starting point and stop on main body, and tendon or soft tissue attachment region have microcellular structure and grow into for physiology tendon or soft tissue cells.

Further, the inside of tendon or soft tissue attachment region and/or periphery are provided with the tendon locking holes.

Further, jawbone is repaired on main body and is provided with the connection projection with overhanging screw hole, is used for being connected with the physiology bone of adjacency by mounting screw.

Further, also comprise fixation steel plate; Jawbone is repaired on main body and is provided with the fixation steel plate screw hole, and an end of fixation steel plate is connected with the fixation steel plate screw hole by mounting screw, and the other end of fixation steel plate is the link that is connected with the physiology bone of adjacency.

Further, also comprise for the Dental Implant base station fixing hole that Dental Implant is installed, be arranged on the position that jawbone is repaired corresponding alveolar ridge on main body.

Further, jawbone is repaired the through hole that is provided with to pass nerve or vascular bundle on main body.

Use the technical solution of the utility model, the jawbone dummy is highly similar on form to the physiology bone that the patient lacks, and fully fills the sealing defect location, and the position is fixed well; And, being provided with and being convenient to the bony fusion face that osteocyte is grown into, the long-term bone that is conducive to dummy and physiology bone merges.

Description of drawings

The Figure of description that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining this utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:

Fig. 1 shows the schematic diagram of jawbone dummy of the present utility model.

The upper jaw bone that Fig. 2 shows in jawbone dummy of the present utility model is repaired the schematic diagram of main body.

Fig. 3 shows the schematic diagram of the first direction of the mandibular bone reparation main body in jawbone dummy of the present utility model.

The mandibular bone that Fig. 4 shows in jawbone dummy of the present utility model is repaired the schematic diagram of the second direction of main body.

Fig. 5 show mandibular bone in jawbone dummy of the present utility model repair main body and physiology bone in conjunction with schematic diagram.

Fig. 6 shows the schematic diagram that overhanging screw hole is set in jawbone dummy of the present utility model.

Fig. 7 shows the scheme of installation that fixation steel plate is set in jawbone dummy of the present utility model.

Fig. 8 shows first embodiment that comprises the part upper jaw bone of jawbone dummy of the present utility model.And

Fig. 9 shows second embodiment that comprises the part mandibular bone of jawbone dummy of the present utility model.

The specific embodiment

Need to prove, in the situation that do not conflict, embodiment and the feature in embodiment in the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments this utility model in detail.

Shown in Figure 1, this utility model provides a kind of jawbone dummy, comprises that upper jaw bone is repaired main body 10 and mandibular bone is repaired main body 20; Jawbone is repaired on main body has bony fusion face 30, Dental Implant base station fixing hole 40, tendon or soft tissue attachment region 50, tendon locking holes 60, through hole 70, overhanging screw hole 80.

it is the position to be repaired that need fill up according to the patient and the CT of perienchyma thereof that jawbone is repaired main body, the scan-datas such as MRI, also design according to this by the reverse reconstruction of three-dimensional model of computer software and meet the jawbone dummy that individual dissection is learned form fully, the applied metal rapid shaping technique is electron beam melting forming technique (Electron Beam Melting for example, EBM) or Selective Laser Sintering (Selected Laser Sintering, SLS) rapid processing becomes the point-device jawbone dummy of physical dimension blank under computer control, for example hole through the following process of necessity again, tapping, surface treatment, assembling etc., become the directly product of implant into body.

Jawbone of the present utility model is repaired main body and is adopted medical metal, comprises that the materials such as medical stainless steel, titanium and titanium-base alloy, cobalt-base alloys make, and this class medical metal material has all confirmed through clinical practice for many years the biology performance that it is good.

Shown in Figure 2, the covering scope that upper jaw bone is repaired main body 10 can comprise upper tooth jaw district, expands to anterior nasal spine, eye socket lower edge, zygomatic process by the damaged situation of bone in case of necessity isostructural partly or entirely.

Shown in Figure 3, the covering scope that mandibular bone is repaired main body 20 can comprise lower tooth jaw district, lower jaw member, angle of mandible, mandibular ramus, coronoid process, condyle prominent isostructural partly or entirely.

Preferably, it is one-body molded that upper jaw bone is repaired the structures such as its upper tooth jaw of main body 10 district, anterior nasal spine, eye socket lower edge, zygomatic process.It is one-body molded that mandibular bone is repaired the structures such as its lower tooth jaw of main body 20 district, lower jaw member, angle of mandible, mandibular ramus, coronoid process, condyle be prominent.

The physiology synestotic interface that upper jaw bone repairs that main body 10, mandibular bone repair that main body 20 is connected with adjacent wish is called bony fusion face 30, and this bony fusion mask has microcellular structure.This microcellular structure is a kind of porous surface gap, the multidirectional micro hole structure that inside is interconnected, and this hole is conducive to osteocyte creeps and grows into, and the bony fusion face 30 on the artificial dummy of postoperative will merge to reach steady in a long-term with physiology bone structure generation bone.

Shown in Figure 2, preferably, upper jaw bone is repaired main body 10 and is being provided with tendon or soft tissue attachment region 50 corresponding to each upper jaw physiology ligament starting point and stop, tendon or soft tissue attachment region 50 hold for physiology tendon and soft tissue cells for a porous zone and grow into to provide reliable impetus to the motion freely of following jawbone muscle group, and its aperture, porous zone is 0.25mm to 3mm; These tendons or soft tissue attachment region comprise: the masseter attachment region 54 that is positioned at zygomatic process and zygomatic arch lower edge; Be positioned at the medial pterygoid attachment region 55 of the prominent and maxillary tuberosity of vertebra; Be positioned at the genioglossus attachment region 510 of mental spine; Be positioned at the zygomaticus major attachment region 51 in cheekbone sutura zygomaticotemporalis the place ahead; Be positioned at the levator labii superioris attachment region of infraorbital margin of maxilla; Be positioned at the levator labii superioris alaeque nasi attachment region 52 of frontal process of the maxilla; Be positioned at the levator anguli oris attachment region 53 of upper jaw bone canine fossa.

Extremely shown in Figure 5 referring to Fig. 3, preferably, mandibular bone is repaired main body 20 and is being provided with tendon or soft tissue attachment region 50 corresponding to each lower jaw physiology ligament starting point and stop, tendon or soft tissue attachment region 50 are grown into so that motion freely provides reliable impetus to the facial muscle group of following jaw for a porous zone with three-dimensional communication hole holds for physiology tendon and soft tissue cells, and the porous of three-dimensional communication hole regional its aperture is 0.25mm to 3mm; These tendons or soft tissue attachment region comprise: be positioned at the prominent back bevel of condyle and lateral surface meniscus and hgamentum temporomandibulare attachment region; Be positioned at the stylomandibular ligament attachment region of angle of mandible and ramus of mandible trailing edge; Be positioned at the depressor labii inferioris depressor anguli oris attachment region 59 of mandibular bone external obilque line; Be positioned at the mentalis attachment region 58 of mandibular bone lateral incisor tip of a root place surface of bone; Be positioned at the masseter attachment region 54 of mandibular bone masseteric tuberosity; Be positioned at the temporalis attachment region 57 of ramus of mandible processus coracoideus leading edge; Be positioned at the medial pterygoid attachment region 55 of trberositas pterygoidea mandibulae; Be positioned at the lateral pterygoid attachment region 56 of mandibular bone lamina lateralis processus pterygoidei lateral surface.

Shown in Figure 6, preferably, upper jaw bone is repaired main body 10, mandibular bone is repaired main body 20 and be provided with overhanging screw hole 80 near the synestotic bony fusion face 30 of the adjacent physiology that is connected with wish, and overhanging screw hole 80 covers adjacent physiology bone surface.Postoperative initial stage upper jaw bone is repaired main body 10 and is repaired main body 20 with mandibular bone and fix by the screw and the adjacent physiology synosteosis that pass in overhanging screw hole 80, and the formation of growing into of being beneficial in the future to creep to the micropore inside of bony fusion face 30 at the physiology bone osteocyte of repairing the bony fusion face binding site that main body 10, mandibular bone repair main body 20 with upper jaw bone firmly is connected.

Shown in Figure 7, preferably, upper jaw bone is repaired main body 10, mandibular bone is repaired main body 20 and be provided with fixation steel plate screw hole 91 near the synestotic bony fusion face 30 of the adjacent physiology that is connected with wish.Postoperative initial stage upper jaw bone is repaired main body 10, mandibular bone is repaired main body 20 and fixed with adjacent physiology synosteosis by the fixation steel plate 90 of general type, is beneficial to physiology bone in the future and creeps to grow into to form firmly to the micropore inside of bony fusion face 30 at bony fusion face binding site osteocyte and connect.

To shown in Figure 8, preferably, upper jaw bone is repaired main body 10, mandibular bone and is repaired the corresponding alveolar ridge of main body 20 position and Dental Implant base station fixing hole 40(is set respectively for example arranges 1, a plurality of until 16 referring to Fig. 5).Dental Implant base station fixing hole 40 is interior can implant Dental Implant base station 41 for this, and Dental Implant corona 42 is installed on Dental Implant base station 41, is used for realizing by Dental Implant the function of physiology tooth.

Preferably, upper jaw bone repair main body 10 near corresponding physiology upper jaw bone infraorbital foramen position by the left and right be respectively equipped with through hole 70 when needing in order to pass nervus infraorbitalis and vascular bundle, through hole 70 is one or more.

Preferably, mandibular bone repair main body 20 near corresponding physiology mandibular bone mental foramen position by the left and right be respectively equipped with through hole 70 when needing in order to pass nervus mandibularis and vascular bundle, through hole 70 is one or more.

Preferably, jawbone is repaired in main body tendon or soft tissue attachment region and periphery to be provided with tendon locking holes 60 temporary fixed in order to use stitching thread that tendon or soft tissue are carried out in operation, be beneficial to tendon in the future and creep to grow into to form firmly to the micropore inside of tendon or soft tissue attachment region 50 and connect.

Preferably, jawbone reparation main body other zones except tendon or soft tissue attachment region 50 are smooth surface.

Shown in Figure 8, there is shown the jawbone dummy of the first embodiment of the present utility model, comprise that the upper jaw bone of repairing a upper jaw bone part repairs main body 10.

Shown in Figure 9, there is shown the jawbone dummy of the second embodiment of the present utility model, comprise that the mandibular bone of repairing a mandibular bone part repairs main body 20.

A kind of design, making and the operation process of jawbone dummy of the present utility model are:

1. patient's jaw face being carried out CT, MRI before art checks to obtain the affected part data and sets up threedimensional model, can use mirror method to copy the side seam Data flipping when a side shortage of data, design the jawbone dummy that can recover the desirable appearance form of patient by computer aided design software, design bony fusion face, Dental Implant base station fixing hole, tendon or soft tissue attachment region, tendon locking holes, through hole, fixation steel plate screw hole, the overhanging screw hole of being combined with the adjacent physiology osseous tissue of wish linking at jawbone dummy corresponding site.

2. applied metal rapid shaping technique such as electron beam melting forming technique (Electron Beam Melting, EBM) or Selective Laser Sintering (Selected Laser Sintering, SLS) rapid processing becomes the point-device jawbone dummy of physical dimension blank under computer control, then becomes the directly product of implant into body through following process such as the boring of necessity, tapping, surface treatment, assembling etc.

3. go the implant surgery of jawbone dummy, upper jaw bone is repaired main body, mandibular bone reparation main body according to the corresponding precalculated position of prior surgery planning implantation, the adjacent physiology osseous tissue faying face that the bony fusion face is connected with wish is fitted tightly, use bone screw that jawbone dummy and adjacent physiology bone are fixed by overhanging screw hole, also can use the facial fixation steel plate of conventional jaw that jawbone dummy and adjacent physiology bone are fixed.

4. being exclusively used in plugs into passes respectively upper jaw bone from disconnected neural collagen protein nerve sheath pipe and repairs main body and mandibular bone and repair through hole on main body; and impaired being pegged graft from the jaw face nerve broken ends of fractured bone of both sides that breaks inside and outside jawbone sewed up with suture ligature into corresponding collagen protein nerve sheath pipe port, injured nerve might not be subjected to the interference of its hetero-organization of periphery and will repair along the pipeline growth of collagen protein nerve sheath pipe inside under collagen protein nerve sheath protection of pipe.

5. need are adhered to the fixing soft tissues such as tendon ligament solid at corresponding tendon or soft tissue attachment region with sewing up linear slit.

6. close wound, conventional post surgery treatment and nursing.

After the jawbone dummy is implanted, the microcellular structure of this jawbone dummy bony fusion face and adjacent host's physiology bone sclerotin close contact are fitted, following osteocyte will grow into jawbone dummy surface microcellular structure and form good bone fusion; Being sewn in addition the soft tissues such as physiology tendon ligament that are fixed in each tendon or soft tissue attachment region also will hold growth and enter tendon or soft tissue attachment region to form the motion impetus of jawbone muscle group.

A kind of machining path of jawbone dummy is for utilizing laser sintered or the rapid shaping technique melt molding such as high-power electron beam melting, and concrete grammar is as follows:

A) obtain the tomoscan data of patient's jaw face by CT or MRI scanning, and according to the tomoscan data inverse to the threedimensional model of setting up the jawbone dummy;

B) use professional software to carry out layering to the jawbone dummy parts three-dimensional data model of design-build in computer, to obtain the outline data of a series of monolayer slices;

C) to laser or the above-mentioned serial synusia data of high-power electron beam rapid forming equipment input;

The medical metal powder of floor height respective thickness when d) laying with aforementioned three-dimensional data model layering in laser or high-power electron beam rapid forming equipment processing cabin;

E) by computer controlled controlling laser beam or high-power electron beam, the medical metal powder scanned and selectively melt;

F) repeat aforementioned laying powder, scanning fusing step so that the mutual clinkering of material of the selected fusing of each layer becomes whole;

G) complete the jawbone dummy parts that the powder of removing not melting after the melting process of whole aspects can obtain required shape and structure;

H) owing to needed entity, hole, micropore etc. structure having been designed in the lump in data file when building jawbone dummy parts three-dimensional data model, therefore above-mentioned various structures are completed manufacturing with disposable in laser sintered or high-power electron beam melting process.

The above is only preferred embodiment of the present utility model, is not limited to this utility model, and for a person skilled in the art, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. a jawbone dummy, be arranged on the alternative described physiology jawbone in position that the patient lacks the physiology jawbone, it is characterized in that, comprising:

Jawbone is repaired main body, and is identical with described physiology jawbone shape;

Bony fusion face (30) is arranged on described jawbone and repairs on synestotic of main body and adjacent physiology; Described bony fusion face (30) has microcellular structure and grows into for osteocyte.

2. jawbone dummy according to claim 1, is characterized in that, described jawbone is repaired main body and comprised that upper jaw bone is repaired main body (10) and/or mandibular bone is repaired main body (20).

3. jawbone dummy according to claim 2, is characterized in that, described upper jaw bone repair main body (10) comprise one or more structures in physiology upper tooth jaw district, anterior nasal spine, eye socket lower edge, zygomatic process structure partly or entirely.

4. jawbone dummy according to claim 2, is characterized in that, described mandibular bone repair main body (20) comprise physiology lower tooth jaw district, lower jaw member, angle of mandible, mandibular ramus, coronoid process, condyle prominent in one or more structures partly or entirely.

5. the described jawbone dummy of any one according to claim 1 to 4, is characterized in that, it is one-body molded that described jawbone is repaired main body.

6. jawbone dummy according to claim 1, it is characterized in that, also comprise, tendon or soft tissue attachment region (50), be arranged on described jawbone and repair on the face that joins with physiology ligament starting point and stop on main body, described tendon or soft tissue attachment region (50) have microcellular structure and grow into for physiology tendon or soft tissue cells.

7. jawbone dummy according to claim 6, is characterized in that, inside and/or the periphery of described tendon or soft tissue attachment region (50) are provided with tendon locking holes (60).

8. jawbone dummy according to claim 1, is characterized in that, described jawbone is repaired on main body and is provided with the connection projection with overhanging screw hole (80), is used for being connected with the physiology bone of adjacency by mounting screw.

9. jawbone dummy according to claim 1, is characterized in that, also comprises fixation steel plate (90); Described jawbone is repaired on main body and is provided with fixation steel plate screw hole (91), one end of described fixation steel plate (90) is connected with described fixation steel plate screw hole (91) by mounting screw, and the other end of described fixation steel plate (90) is the link that is connected with the physiology bone of adjacency.

10. jawbone dummy according to claim 1, is characterized in that, also comprises for the Dental Implant base station fixing hole (40) that Dental Implant is installed, and is arranged on the position that described jawbone is repaired corresponding alveolar ridge on main body.

11. jawbone dummy according to claim 1 is characterized in that, described jawbone is repaired the through hole (70) that is provided with to pass nerve or vascular bundle on main body.