CN102551920B - External compaction molding bone grafting mold - Google Patents
External compaction molding bone grafting mold Download PDFInfo
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- CN102551920B CN102551920B CN201210055517.1A CN201210055517A CN102551920B CN 102551920 B CN102551920 B CN 102551920B CN 201210055517 A CN201210055517 A CN 201210055517A CN 102551920 B CN102551920 B CN 102551920B
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- compaction molding
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Abstract
The invention relates to an external compaction molding bone grafting mold. The external compaction molding bone grafting mold is structurally characterized in that an upper positioning ring is connected onto a base plate via a support, a grid wall encircled by a plurality of upright rods is penetratingly connected between the upper positioning ring and the base plate, and a shaft lever for molding a bone section medullary cavity penetrates through the upper positioning ring to be connected onto the base plate. The thin rods are in inserted connection to form the side grid wall of the mold, the side grid wall can stop ilium particle bone substances on the side surfaces of the mold from leaking outwards, furthermore, the single rods can be detached one by one so as to avoid damaging a sizing bone section in the mold, and completeness of the sizing bone section in a mold detaching process is guaranteed. The external compaction molding bone grafting mold is simple and convenient in operation, rapid in molding, convenient in detachment and high in practicality, a total bone defect treatment process is simplified, treatment time is shortened, surgery frequency of a patient is reduced, suffering degree is decreased, and medical nursing cost is lowered. Accordingly, the external compaction molding bone grafting mold provides a new way for treating bone defect by a self bone grafting method.
Description
Technical field
The present invention relates to the bone shaping mould that a kind of bone grafting is used, specifically a kind of external compaction molding bone grafting mold.
Background technology
For the treatment of large segmental bone defect, more conventional therapeutic scheme at present, the one, get the autologous bone bone grafting treatment of ilium; The 2nd, outer fixing prolongation frame extends.The former is prepared into broken osseous granules or bone rod by the ilium taking off from patient self, until interior, broken osseous granules is packed to bony defect place after fixedly completing.The problem existing is that the fiber granulation tissue damaged bone graft area of bone of easily growing into, is prone to bone grafting and absorbs in therapeutic process, make operative failure.The latter is the bone metaphysis osteotomy at the damaged place of bone, and the outer fixing frame that extends is installed, by 1 millimeter of speed prolongation every day.The problem existing is, treatment time is generally taken 2-3 years, and need adjust prolongation every day, all brings great inconvenience to patient and family members thereof.
Summary of the invention
Object of the present invention is just to provide a kind of external compaction molding bone grafting mold, and to solve, course for the treatment of of large segmental bone defect treatment is long, wound is many and the high problem of expense.
The present invention is achieved in that a kind of external compaction molding bone grafting mold, is connected to locating ring on chassis by support, and between locating ring and described chassis, cross-under has the hoarding being encircled into by some upright bodies of rod on described; The axostylus axostyle that molding bone section pulp cavity is used is connected on described chassis through described upper locating ring.
The length of the described body of rod is greater than described upper locating ring end face to the distance between described undersurface of bottom disc, so just can make the body of rod upper end that forms hoarding pass locating ring, thereby is convenient to form removal operation.
Described in cross-under, the upper jack hole of the body of rod is opened on described the edge of ring in locating ring.
The upper end of described support is fixedly connected on described upper locating ring, and the lower end of described support is fixedly connected on described chassis, forms thus the fixing mould that is located by connecting of spacing between a kind of upper locating ring and chassis.
The upper end of described support is connected on described upper locating ring by adjusting nut, and the lower end of described support is fixedly connected on described chassis, forms thus the adjustable mould that is located by connecting of spacing between a kind of upper locating ring and chassis.
Middle part on described chassis is connected with locating convex block, has the screw that connects described axostylus axostyle on described locating convex block.Can reduce like this chassis thickness, reduce material cost.
The top of described axostylus axostyle is square bar body, and the instrument of facilitating the use is pulled down axostylus axostyle.
At described shaft rod upper sleeve, be connected to outlet sleeve, to utilize it to carry out the extrusion forming operation outside human body to the ilium sclerotin in hoarding.
During treatment, the ilium sclerotin taking out from large segmental bone defect patient is prepared into the osseous granules of 3 × 3 × 3 mm in sizes with it, pack in mould of the present invention, biogum reinjects, and then utilize outlet sleeve to implement extrusion forming operation, ilium sclerotin is fashioned into into the tubular bone section substantially suitable with patient's bone defect.Form removal operating process after having shaped is first to take off outlet sleeve and axostylus axostyle, then by knocking the top exposed junction of the body of rod that forms mould hoarding, make its loosening moving down, and then this root body of rod lower end being exposed from the bottom surface on chassis is extracted; After removing the most hoarding body of rod, the sizing bone section that bone grafting can be used is taken out from the space between upper locating ring and chassis, for the use of bone grafting operation operation.
Osseous granules after injecting glue extrusion forming, is difficult for due to biogum viscosity property being separated with the wall of mould in mould very much.If adopt common pressure separation means, will damage sizing bone section, make molding failure; And adopt mould of the present invention by slice body of rod inserting mode, form the gusset hoarding of mould, both met it stops ilium sclerotin effect in mould side, again can be by dismantling one by one of the single body of rod having been avoided to the damage of the sizing bone section in mould, the intact of bone section guaranteed to shape in form removal process.Key of the present invention is just this.
Sizing bone section by the made this rapid shaping of mould of the present invention is passed through to operation technique, be transplanted to patient's bone defect, make bone grafting shape meet the form of the damaged place of patient's bone bone, bone grafting becomes closed, fiber granulation tissue is difficult for invading, be not prone to bone grafting absorbing phenomenon, the corresponding raising of success rate of operation.
The present invention provides a kind of effective apparatus of manipulation in vitro molding for Ilium bone remodeling, it is easy and simple to handle, molding is rapid, and form removal is convenient, practical, can make the therapeutic process that whole bone is damaged simplify, treatment time shortens, and corrective surgery number of times reduces, and distress level reduces, medical treatment and nursing expense reduces, and in order to treat with autologous bone implantation, bone is damaged provides a new way.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, axostylus axostyle, 2, outlet sleeve, 3, adjusting nut, 4, upper locating ring, 5, the body of rod, 6, support, 7, chassis, 8, lower jack hole, 9, upper jack hole, 10, locating convex block.
The specific embodiment
As shown in Figure 1, at 7 middle parts, discoid chassis, be shaped with a locating convex block 10, locating convex block 10 can be structure as a whole with chassis 7, has a center screw, in order to the axostylus axostyle 1 that is threaded on locating convex block 10.Axostylus axostyle 1 is cylindrical straight-bar, and its lower end car is shaped with screw thread, to be fixed in center screw; Its upper end is shaped with one section of square bar body, so that tighten or unscrew with instrument.The cross section of axostylus axostyle 1 is preferably close with the pulp cavity shape of bone grafting bone section.
On chassis 7, be welded with 2-4 straight-bar supports 6, in the upper end of support 6, be connected to locating ring 4, on this, locating ring 4 is that a pair of adjusting nut 3 by being screwed in every support upper end is fixedly connected on support 6; Also can be welded on the upper end of support 6.On upper locating ring 4, along the edge of interior ring, have jack hole 9 on a circle; The periphery of the locating convex block on chassis 7, has jack hole 8 under a circle.Upper jack hole 9 is relative with lower jack hole 8 upper-lower positions, in order to the cross-under body of rod 5.Distance between adjacent jack hole should be less than 0.2mm, so that the gap between the adjacent body of rod 5 after cross-under is less than 0.2mm.The diameter of the body of rod 5 is advisable with 1.8-2.2mm.
The body of rod 5 cross-under, between upper locating ring 4 and chassis 7, form the hoarding that surrounds as mould side wall.The length of the body of rod 5 is greater than locating ring 4 end faces to the distance between 7 bottom surfaces, chassis, like this, cross-under on locating ring 4 and chassis 7 after, the upper end of the body of rod 5 can be exposed one section at the end face of upper locating ring 4, so that knock the demoulding downwards.
On axostylus axostyle 1, be socketed with outlet sleeve 2, the profile of outlet sleeve is identical with the shape of the interior ring of upper locating ring 4, but undersized, so that the discrepancy of outlet sleeve in pressurized operation process.
The using method of mould of the present invention is: according to patient's bone defect degree, determine the length of bone grafting, then according to this bone grafting length, adjust the height of locating ring 4.Then, insert axostylus axostyle 1, be fixed on the positioning boss 10 on chassis 7.In every pair of jack hole opposing upper and lower, insert respectively a body of rod 5, to form the sidewall hoarding of mould.After installing, mould is placed on an operating platform, from patient's ilium, get bone again and be prepared into osseous granules, particulate cancellous bone is placed between the axostylus axostyle 1 and hoarding of mould, after injecting biogum, outlet sleeve 2 covers are received on axostylus axostyle 1, by suppressing up and down motion pressurization, make the granule sclerotin compacted molding gradually in mould, the sclerotin in mould becomes a bone section identical with dies cavity shape.
During form removal, first take off outlet sleeve 2, then unclamp and unload axostylus axostyle 1; Then, strike down one by one the upper dew end of the body of rod 5, make the body of rod 5 loosening, be separated with bone section; When the upper surface of the body of rod 5, struck to after the end face of upper locating ring 4 is mutually concordant, in the bottom surface on chassis 7, can be exposed the lower end of the body of rod 5; From the bottom surface on chassis 7, dew end all bodies of rod 5 is clamped respectively and extracted one by one with pliers; Finally from support 6, unload upper locating ring 4, can obtain one basic quite and with the bone section of pulp cavity with patient's bone defect.
By the bone defect of this bone section patients with implantation, can reach the effective treatment to the damaged disease of bone subsequently.Because the bone section itself after moulding is again with pulp cavity, like this, a bone grafting is closed had both reduced the intrusion of fiber granulation tissue, and that has reduced again place, medullary cavity space uses bone amount; The 2nd, when treatment, can utilize intramedullary pin to fix, intramedullary pin can pass from pulp cavity, and formation center is fixed and annular brace; The 3rd, the blood flow in pulp cavity is unobstructed, to knitting, provides effective nutrition, has avoided the absorbed situation of bone grafting to occur, and makes bone grafting treatment more effective.
The present invention can be made into serial set of molds, though also mould hoarding to surround shape basic identical or close with the bone form shape of clinical common bone defect so that Clinical Selection.
Claims (7)
1. an external compaction molding bone grafting mold, is characterized in that, on chassis, (7) are upper is connected to upper locating ring (4) by support (6), and between locating ring (4) and described chassis (7), cross-under has the hoarding being encircled into by some upright bodies of rod (5) on described; The axostylus axostyle (1) that molding bone section pulp cavity is used is connected on described chassis (7) through described upper locating ring (4); On described axostylus axostyle (1), be socketed with outlet sleeve (2), the profile of described outlet sleeve is identical with the shape of the interior ring of described upper locating ring (4), but undersized.
2. according to the external compaction molding mould described in claim l, it is characterized in that, the length of the described body of rod (5) is greater than described upper locating ring (4) end face to the distance between bottom surface, described chassis (7).
3. external compaction molding mould according to claim 1, is characterized in that, the upper jack hole (9) of the body of rod (5) is opened the edge of ring in locating ring on described (4) described in cross-under.
4. external compaction molding mould according to claim 1, is characterized in that, it is upper that the upper end of described support (6) is fixedly connected on described upper locating ring (4), and the lower end of described support (6) is fixedly connected on described chassis (7).
5. external compaction molding mould according to claim 1, is characterized in that, it is upper that the upper end of described support (6) is connected to described upper locating ring (4) by adjusting nut (3), and the lower end of described support (6) is fixedly connected on described chassis (7).
6. external compaction molding mould according to claim 1, is characterized in that, at the middle part of described chassis (7), is connected with locating convex block (10), has the screw that connects described axostylus axostyle (1) on described locating convex block (10).
7. external compaction molding mould according to claim 6, is characterized in that, the top of described axostylus axostyle (1) is square bar body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210055517.1A CN102551920B (en) | 2012-03-06 | 2012-03-06 | External compaction molding bone grafting mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210055517.1A CN102551920B (en) | 2012-03-06 | 2012-03-06 | External compaction molding bone grafting mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102551920A CN102551920A (en) | 2012-07-11 |
| CN102551920B true CN102551920B (en) | 2014-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210055517.1A Expired - Fee Related CN102551920B (en) | 2012-03-06 | 2012-03-06 | External compaction molding bone grafting mold |
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| CN (1) | CN102551920B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207492839U (en) * | 2017-04-21 | 2018-06-15 | 陈为坚 | A kind of bone depresser |
| CN110215317B (en) * | 2019-06-27 | 2021-08-13 | 陈为坚 | Bone pressing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5824078A (en) * | 1996-03-11 | 1998-10-20 | The Board Of Trustees Of The University Of Arkansas | Composite allograft, press, and methods |
| CN1290182A (en) * | 1998-02-06 | 2001-04-04 | 骨科技术公司 | Osteoimplant and method for its manufacture |
| CN201684047U (en) * | 2010-05-28 | 2010-12-29 | 张纯朴 | Continuous pressurizing forming mold for iliac bone reshaping |
| CN102335050A (en) * | 2011-07-22 | 2012-02-01 | 李健 | Bone graft capable of being directly implanted into intervertenral space and production tool thereof |
| CN202515831U (en) * | 2012-03-06 | 2012-11-07 | 张纯朴 | Bone grafting mold pressed and molded outside body |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8133421B2 (en) * | 1999-02-23 | 2012-03-13 | Warsaw Orthopedic, Inc. | Methods of making shaped load-bearing osteoimplant |
-
2012
- 2012-03-06 CN CN201210055517.1A patent/CN102551920B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5824078A (en) * | 1996-03-11 | 1998-10-20 | The Board Of Trustees Of The University Of Arkansas | Composite allograft, press, and methods |
| CN1290182A (en) * | 1998-02-06 | 2001-04-04 | 骨科技术公司 | Osteoimplant and method for its manufacture |
| CN201684047U (en) * | 2010-05-28 | 2010-12-29 | 张纯朴 | Continuous pressurizing forming mold for iliac bone reshaping |
| CN102335050A (en) * | 2011-07-22 | 2012-02-01 | 李健 | Bone graft capable of being directly implanted into intervertenral space and production tool thereof |
| CN202515831U (en) * | 2012-03-06 | 2012-11-07 | 张纯朴 | Bone grafting mold pressed and molded outside body |
Non-Patent Citations (4)
| Title |
|---|
| 取髂骨植骨术的并发症及处理;谢庆华等;《中医正骨》;20080229;第20卷(第2期);34-35 * |
| 同种异体骨复合带血管自体骨移植修复大段骨缺损的实验研究;杨小彬;《中国优秀硕士学位论文全文数据库 医药卫生科技辑》;20091215(第12期);E066-151 * |
| 杨小彬.同种异体骨复合带血管自体骨移植修复大段骨缺损的实验研究.《中国优秀硕士学位论文全文数据库 医药卫生科技辑》.2009,(第12期),E066-151. |
| 谢庆华等.取髂骨植骨术的并发症及处理.《中医正骨》.2008,第20卷(第2期),35-35. |
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| CN102551920A (en) | 2012-07-11 |
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Granted publication date: 20140430 |