CN202537711U - Sacrum artificial prosthesis - Google Patents
Sacrum artificial prosthesis Download PDFInfo
- Publication number
- CN202537711U CN202537711U CN 201220085287 CN201220085287U CN202537711U CN 202537711 U CN202537711 U CN 202537711U CN 201220085287 CN201220085287 CN 201220085287 CN 201220085287 U CN201220085287 U CN 201220085287U CN 202537711 U CN202537711 U CN 202537711U
- Authority
- CN
- China
- Prior art keywords
- rumpbone
- artificial prosthesis
- prosthesis according
- sacrum
- artificial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/28—Bones
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
Abstract
The utility model provides a sacrum artificial prosthesis. The sacrum artificial prosthesis is arranged among a lumbar vertebra, left and right iliac bones to replace a physical sacrum. The sacrum artificial prosthesis comprises a prosthesis body, an upper joint fusion face, left and right ear-shaped auriform joint fusion surfaces, wherein the upper joint fusion face is arranged at the upper part of the prosthesis body and used for being bonded with a lower end plate of a lumbar vertebra; and the left and right ear-shaped auriform joint fusion surfaces are respectively arranged at both sides of the prosthesis body and used for being bonded with auriform surfaces of the left and right iliac bones. The sacrum artificial prosthesis has the main advantages that the upper part and the both sides of the sacrum artificial prosthesis have joint fusion faces and are respectively connected and fused with the physiological lumbar vertebra and the iliac bone to replace the physiological iliac bone, so that the osteocyte generation and bone fusion can be facilitated very quickly, the function of the sacrum is recovered, thereby the purpose of stably rebuilding waist, sacrum, and ilium joints is achieved.
Description
Technical field
This utility model relates to the orthopaedics implant field, particularly a kind of rumpbone artificial prosthesis of alternative nature rumpbone.
Background technology
Rumpbone is the important step of spinal column to the pelvis transition, to supporting spinal column, keep pelvic stabilization, transmitting upper body part physiological loads and external heavy burden etc. and have important role.Sacral Tumors is occupied certain proportion in the tumor of spine case, excision is the main means of current treatment Sacral Tumors.But because the particularity of rumpbone present position, operating difficulty is bigger, and because operation partly even has fully destroyed waist sacrum, sacroiliac joint usually, how the stable waist sacrum mechanics function of restoration and reconstruction is the difficult problem that medical circle is shown great attention to postoperative always.The method that the waist section is rebuild under the at present conventional spinal column that adopts is for example followed closely excellent Reconstruction, is all had certain limitation and deficiency from the bone grafting Reconstruction of body bone or allograph bone etc., and loosening, the fracture of postoperative, rejection and fusion are bad or the like happens occasionally.
The utility model content
The not good problems of therapeutic effect such as this utility model provides a kind of rumpbone artificial prosthesis, and, fracture loosening with the postoperative that solves excellent Reconstruction of existing nail or bone grafting Reconstruction, rejection and fusion are bad.
This utility model is realized through following technical scheme: a kind of rumpbone artificial prosthesis, be arranged between lumbar vertebra and the left and right ilium to substitute the physiology rumpbone, and comprising: prosthetic main; Upper joint merges face, is arranged on prosthetic main top, is used for fitting with the following soleplate of lumbar vertebra; Left and right ear cylindrarthrosis merges face, is separately positioned on the both sides of prosthetic main, is used for fitting with the auricular surface of left and right ilium respectively.
Further, the surface of upper joint fusion face and left and right ear cylindrarthrosis fusion face has microcellular structure.
Further, prosthetic main has microcellular structure.
Further, microcellular structure is the multidirectional micro hole structure that is interconnected, and pore diameter is 100 μ m to 1800 μ m.
Further, prosthetic main is processed by medical metal.
Further, the periphery surface of prosthetic main is concordant with the periphery surface of physiology rumpbone or be positioned in the periphery surface of physiology rumpbone.
Further, the top of prosthetic main and both sides are provided with screw hole.
Further, the occupy-place of rumpbone artificial prosthesis height is consistent with the physiology rumpbone.
Further, the rumpbone artificial prosthesis extends upward until fifth lumbar vertebra vertebral body that substitutes lumbar vertebra or more vertebral body.
Further, the rumpbone artificial prosthesis to left and right extension until the left and right ilium of alternative part.
Further, prosthetic main is provided with a plurality of bone graftings hole.
Further, the aperture in bone grafting hole is 2mm to 30mm.
Further, the surface of prosthetic main and/or set inside have reinforcement or stiffener.
Further, the whole or local coating of the outer surface of prosthetic main and/or inner surface has hydroxyapatite coating layer.
Pass through technique scheme; The major advantage of this utility model is that the top of rumpbone artificial prosthesis and both sides have the joint fusion face, are connected with ilium with the physiology lumbar vertebra respectively and merge to substitute the physiology rumpbone; Can facilitate osteocyte to generate very soon; Promote bone to merge, recover the function of rumpbone, reach and rebuild the stable purpose of waist sacroiliac joint.
Description of drawings
The accompanying drawing that constitutes the part of this utility model is used to provide the further understanding to this utility model, and illustrative examples of this utility model and explanation thereof are used to explain this utility model, do not constitute the improper qualification to this utility model.In the accompanying drawings:
Fig. 1 shows the schematic perspective view of the rumpbone artificial prosthesis of this utility model;
Fig. 2 shows the rumpbone artificial prosthesis and the Peripheral Bone respective outer side edges sketch map of this utility model;
Fig. 3 shows the front view of the rumpbone artificial prosthesis of this utility model;
Fig. 4 shows the side view of the rumpbone artificial prosthesis of this utility model; And
Fig. 5 shows the microcellular structure sketch map of the rumpbone artificial prosthesis of this utility model.
The specific embodiment
Embodiment to this utility model is elaborated below in conjunction with accompanying drawing, but the multitude of different ways that this utility model can be defined by the claims and cover is implemented.
The rumpbone artificial prosthesis of an embodiment of this utility model has been shown among Fig. 1.This rumpbone artificial prosthesis is made according to the three-dimensional real data of patient's physiology rumpbone; Consistent with the former physiology rumpbone of patient dimensionally; The three-dimensional real data of patient's rumpbone can be by the for example acquisition such as X-ray sheet of tomoscan method such as CT/MRI/UCT and other feasible methods, and said rumpbone artificial prosthesis satisfies on shape and size to be corrected reconstruction model needed space occupy-place and dock identical requirement with articular surface.The rumpbone artificial prosthesis comprises: rumpbone artificial prosthesis main body 10; Rumpbone artificial prosthesis main body 10 tops be provided with the L5 lumbar vertebra under the upper joint that matches of soleplate merge face 20, also have corresponding with left and right facies auricularis ossis ilii and the good left and right ear cylindrarthrosis that coincide simultaneously and merge face 30.
Fig. 2 shows the sketch map of rumpbone artificial prosthesis and Peripheral Bone respective outer side edges.In this embodiment, the rumpbone artificial prosthesis has substituted the physiology rumpbone, marks peripheral physiology bone structure with dotted line among the figure.When patient's lumbar vertebra due to illness kitchen range involve and cause a plurality of vertebral bodys disappearance and need substitute by prosthese the time; The rumpbone artificial prosthesis can extend upward lengthening and substitute L5 lumbar vertebra and even more lumbar vertebra sections to contain; Said rumpbone artificial prosthesis upper joint merged face 20 and will be connected with the following soleplate of L4 or other sections lumbar vertebras and fix this moment, and it is identical that its fixing and fusing mode and above-mentioned L5 lumbar vertebra dock fixed mode.Simultaneously; When the left and right ilium of patient due to illness kitchen range involve and cause the sacroiliac joint Peripheral Bone damaged and need fill up occupy-place and substitute by prosthese the time; The ear cylindrarthrosis of said rumpbone artificial prosthesis merges face 30 and can extend to corresponding damaged space and fill occupy-place and fixes until arriving the bonded sclerotin profile of expection and being connected with it, and its fixing and fusing mode is similar to and docks bonded mode with facies auricularis ossis ilii.
The upper joint of rumpbone artificial prosthesis merges face 20 and left and right ear cylindrarthrosis, and to merge face 30 be to be processed by Digit Control Machine Tool after extracting the curved surface data of soleplate and left and right facies auricularis ossis ilii under the L5 lumbar vertebra respectively; Also can utilize rapid shaping techniques such as laser sintered or high-power electron beam fusion to build surface with curved surface height match characteristic; Rumpbone artificial prosthesis upper joint merges face 20 according to soleplate data construction under the lumbar vertebra and well identical with the following soleplate of lumbar vertebra, and the left and right joint fusion face 30 of rumpbone artificial prosthesis is built according to the facies auricularis ossis ilii data and well coincide with facies auricularis ossis ilii.
Except that the design of necessary function property changes; This rumpbone artificial prosthesis keeps basically identical with the former physiology rumpbone of patient dimensionally; Its overall occupy-place size is consistent with former physiology rumpbone behind the rumpbone artificial prosthesis implant into body, keeps original location status to guarantee surrounding tissue.It is said zero incisura of medical circle that rumpbone artificial prosthesis its surface after implantation does not protrude in former rumpbone physiology surface, therefore near the various soft tissue anatomical positions rumpbone is not had any harmful effect.
Like Fig. 3 and shown in Figure 4; Rumpbone artificial prosthesis upper joint merges face 20 and merges in the face 30 and close on the position with left and right ear cylindrarthrosis and be respectively equipped with a plurality of screw holes 40; In art directly with the L5 lumbar vertebra under soleplate and left and right facies auricularis ossis ilii well dock and coincide and L5 lumbar vertebra, rumpbone artificial prosthesis, left and right ilium closely are connected to form the fixed integral body of incipient stability through bone screw 50, treat that upper joint merges face 20 and left and right ear cylindrarthrosis fusion face 30 is realized respectively and the L5 lumbar vertebra under can reach the purpose of the waist sacrum ilium mechanical structure of reconstruction of stability after the bone fusion between soleplate and the left and right facies auricularis ossis ilii.
Each joint fusion face surface of this utility model rumpbone artificial prosthesis is provided with is convenient to the microcellular structure 60 that osteocyte is grown into; This microcellular structure 60 is a kind of multidirectional micro hole structure that are interconnected; Pore diameter is 100 μ m～1800 μ m; This hole helps osteocyte creeps and grows into, and postoperative rumpbone artificial prosthesis faying face will merge to reach steady in a long-term with physiology bone structure generation bone.Fig. 5 shows a sketch map of this multidirectional microcellular structure.
Can be provided with bone grafting hole 70 in the rumpbone artificial prosthesis to hold from body or allograph bone piece and osseous granules; Be implanted in this bone grafting hole 70 before the art or in the art can play to induce osteocyte to creep and grow into osseous granules and promote the effect of bone fusion from body or allograph bone piece; 70 apertures, bone grafting hole are 2mm～30mm; Connect each other between the bone grafting hole 70 or pass through microcellular structure 60 and connect said microcellular structure 60 apertures, 100 μ m～1800 μ m.
Preferably, the microcellular structure 60 that said rumpbone artificial prosthesis main body 10 is processed for medical metal, the surface and the internal void of this microcellular structure 60 connect each other, the pore diameter 100 μ m～1800 μ m of said microcellular structure 60, so it has good biocompatibility.
Preferably, said rumpbone artificial prosthesis main body 10 surfaces and/or set inside have reinforcement or stiffener.
Preferably, main body 10 surfaces and/or the inner whole or local coating of said rumpbone artificial prosthesis have hydroxyapatite coating layer, have the function of inducing the osteocyte growth.The processing method of this hydroxyapatite coating layer is: adopt conventional plasma spraying method or electrochemical deposition method and sintering process to form.
The processing method of the said rumpbone artificial prosthesis of this utility model is: obtain the tomoscan data such as CT/MRI/UCT at patient's rumpbone position → in computer, set up three-dimensional data model → the extractions sacrum bone model of diseased region and revise design to generate rumpbone artificial prosthesis three-dimensional data model → with rumpbone artificial prosthesis three-dimensional data model stimulated replacement physiology rumpbone to check and to verify design → machine-shaping.
According to present process technology two comparatively ideal machining paths are arranged:
A. adopt numerical control machine tool to carry out machine-shaping, use methods such as spark machined, chemical attack, machine drilling cutting, high-temperature plasma metal spraying to bore then and mill processing and apply out needed bone grafting hole, screw hole and microcellular structure according to the processor that the rumpbone artificial prosthesis data transaction that in computer, generates becomes;
B. utilize laser sintered or rapid shaping technique melt molding such as high-power electron beam fusion, concrete grammar is following:
A) use professional software that the rumpbone artificial prosthesis three-dimensional data model of design-build in computer is carried out layering, to obtain the outline data of a series of monolayer slices;
B) import above-mentioned serial synusia data to laser or high-power electron beam rapid forming equipment;
The medical metal powder of floor height respective thickness when c) in laser or high-power electron beam rapid forming equipment processing cabin, laying with aforementioned three-dimensional data model layering;
D) by computer controlled controlling laser beam or high-power electron beam the medical metal powder is scanned and selectively the fusing;
E) repeat aforementioned laying powder, scanning fusing step so that each layer is selected the mutual clinkering one-tenth of the material of fusing integral body;
F) remove the rumpbone artificial prosthesis that not fused powder can obtain required shape and structure behind the melting process of the whole aspects of completion;
G) owing to when building rumpbone artificial prosthesis three-dimensional data model, needed entity, bone grafting hole, screw hole, micropore or the like structure has been designed in the lump in data file, therefore above-mentioned various structures in laser sintered or high-power electron beam melting process with disposable completion manufacturing.
Rumpbone artificial prosthesis according to this utility model has following beneficial effect:
Be consistent with the former physiology rumpbone of patient dimensionally, guarantee that surrounding tissue keeps original location status; Rumpbone artificial prosthesis joint fusion face build according to the facies auricularis ossis sacri data and with close on the physiological joint face and well coincide; Will be behind the prosthese implant into body chimeric and form bone and merge to reach steady in a long-term with physiology bone structure on every side.
The preferred embodiment that the above is merely this utility model is not limited to this utility model, and for a person skilled in the art, this utility model can have various changes and variation.All within the spirit and principle of this utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of this utility model.
Claims (13)
1. rumpbone artificial prosthesis is arranged between lumbar vertebra and the left and right ilium to substitute the physiology rumpbone, it is characterized in that, comprising:
Prosthetic main (10);
Upper joint merges face (20), is arranged on said prosthetic main (10) top, is used for fitting with the following soleplate of said lumbar vertebra;
Left and right ear cylindrarthrosis merges face (30), is separately positioned on the both sides of said prosthetic main (10), is used for fitting with the auricular surface of said left and right ilium respectively.
2. rumpbone artificial prosthesis according to claim 1 is characterized in that, the surface that said upper joint merges face (20) and said left and right ear cylindrarthrosis fusion face (30) has microcellular structure.
3. rumpbone artificial prosthesis according to claim 1 is characterized in that, said prosthetic main (10) has microcellular structure.
4. according to claim 2 or 3 described rumpbone artificial prosthesis, it is characterized in that said microcellular structure is the multidirectional micro hole structure that is interconnected, pore diameter is 100 μ m to 1800 μ m.
5. rumpbone artificial prosthesis according to claim 1 is characterized in that, the periphery surface of said prosthetic main (10) is concordant with the periphery surface of said physiology rumpbone or be positioned in the periphery surface of said physiology rumpbone.
6. rumpbone artificial prosthesis according to claim 1 is characterized in that, the top of said prosthetic main (10) and both sides are provided with screw hole (40).
7. rumpbone artificial prosthesis according to claim 1 is characterized in that, the occupy-place height of said rumpbone artificial prosthesis is consistent with said physiology rumpbone.
8. rumpbone artificial prosthesis according to claim 1 is characterized in that, said rumpbone artificial prosthesis extends upward until fifth lumbar vertebra vertebral body that substitutes said lumbar vertebra or more vertebral body.
9. rumpbone artificial prosthesis according to claim 1 is characterized in that, said rumpbone artificial prosthesis to left and right extension until the said left and right ilium of alternative part.
10. rumpbone artificial prosthesis according to claim 1 is characterized in that, said prosthetic main (10) is provided with a plurality of bone graftings hole (70).
11. rumpbone artificial prosthesis according to claim 10 is characterized in that, the aperture in said bone grafting hole (70) is 2mm to 30mm.
12. rumpbone artificial prosthesis according to claim 1 is characterized in that, the surface and/or the set inside of said prosthetic main (10) have reinforcement or stiffener.
13. rumpbone artificial prosthesis according to claim 1 is characterized in that, the outer surface of said prosthetic main (10) and/or the whole or local coating of inner surface have hydroxyapatite coating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220085287 CN202537711U (en) | 2012-03-08 | 2012-03-08 | Sacrum artificial prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220085287 CN202537711U (en) | 2012-03-08 | 2012-03-08 | Sacrum artificial prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202537711U true CN202537711U (en) | 2012-11-21 |
Family
ID=47158410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220085287 Expired - Lifetime CN202537711U (en) | 2012-03-08 | 2012-03-08 | Sacrum artificial prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202537711U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102579163A (en) * | 2012-03-08 | 2012-07-18 | 北京爱康宜诚医疗器材股份有限公司 | Artificial sacrum prosthesis |
| CN107080605A (en) * | 2017-01-13 | 2017-08-22 | 王金成 | The method and Sacral reconstruction plate of 3D printing individuation customization Sacral reconstruction plate |
-
2012
- 2012-03-08 CN CN 201220085287 patent/CN202537711U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102579163A (en) * | 2012-03-08 | 2012-07-18 | 北京爱康宜诚医疗器材股份有限公司 | Artificial sacrum prosthesis |
| WO2013131493A1 (en) * | 2012-03-08 | 2013-09-12 | 北京爱康宜诚医疗器材股份有限公司 | Sacrum artificial prosthesis |
| CN102579163B (en) * | 2012-03-08 | 2015-02-04 | 北京大学第三医院 | Artificial sacrum prosthesis |
| CN107080605A (en) * | 2017-01-13 | 2017-08-22 | 王金成 | The method and Sacral reconstruction plate of 3D printing individuation customization Sacral reconstruction plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |
|
| CX01 | Expiry of patent term |