CN102389329A - Bone grafting device for tubular bone defect healing - Google Patents
Bone grafting device for tubular bone defect healing Download PDFInfo
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- CN102389329A CN102389329A CN2011102236890A CN201110223689A CN102389329A CN 102389329 A CN102389329 A CN 102389329A CN 2011102236890 A CN2011102236890 A CN 2011102236890A CN 201110223689 A CN201110223689 A CN 201110223689A CN 102389329 A CN102389329 A CN 102389329A
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Abstract
The invention relates to a bone grafting device for tubular bone defect healing, and belongs to the technical field of orthopedic medical devices. The bone grafting device is used for grafting tubular bones to promote the healing of the tubular bones, and comprises an outer sleeve, an inner sleeve and a connecting rod, wherein the inner diameter of the outer sleeve is matched with the outer diameter of the two ends of a tubular bone defect part required for bone grafting, and the inner sleeve is positioned in the outer sleeve; the connecting rod is inserted in the inner sleeve, and the diameter of the connecting rod is matched with the inner diameter of the inner sleeve; and the length of the connecting rod is greater than that of the inner sleeve, and the inner sleeve and the outer sleeve are made of biodegradable magnesium alloy. In the bone grafting device, the connecting rod in the inner sleeve can firmly connect the two ends of a defective tubular bone, a high-quality autologous cancellous bone is filled between the inner sleeve and the outer sleeve to simultaneously play roles of bone grafting and reinforced fixing, and the biodegradable magnesium alloy has a function of inducing bone formation, thereby the fracture healing is promoted. The bone grafting device has the advantages of firm bone grafting, high intensity, early ambulation for patients, and good clinical effect.
Description
Technical field
The present invention relates to a kind of bone grafting device that in the damaged agglutination of treatment tubular bone, uses, belong to orthopaedic medical treatment equipment technical field.
Background technology
Fracture is the orthopaedics common disease because of damaged disunion, and different parts nonunion incidence rate is inconsistent, and pertinent literature shows: long bone fracture disunion rate is about 1-2%; Multiple fracture disunion rate is about 7-10%; The privileged sites fracture, for example fracture of femoral neck disunion, its incidence rate is up to 7-33%.The treatment of nonunion is one of challenge of facing of orthopedist.
Multiple therapy methods is arranged for fracture because of the damaged disunion that causes, wherein bone grafting is the most commonly used, an effect Therapeutic Method preferably.Bone grafting method for tubular bone is to adopt the external fixer bone grafting at present, and the external fixer two ends are fixedly connected with the two ends of tubular bone defect, place the fibula of intercepting in the defect of tubular bone, and fibula is fastening by external fixer.The shortcoming of this method be fibula with the tubular bone at two ends between do not have intramedullary pin to be connected, bone grafting is very thin, intensity is little, limitation of activity when not healing.In addition, the partial fracture disunion is used bone grafting and is treated still disunion, needs the secondary bone grafting operation, uses the various biological son that promotes that fracture repair mechanism starts once more simultaneously, for example bone morphogenetic protein.Such drug price is expensive, and the some cases therapeutic effect is imprecise.
Summary of the invention
Technical problem to be solved by this invention provides the bone grafting device that is used for the tubulose bone defect healing that a kind of bone grafting is firm, intensity is big, healing effect is good.
The technical scheme that solves the problems of the technologies described above is:
A kind of bone grafting device that is used for the tubulose bone defect healing; It is made up of outer sleeve, inner sleeve, connecting rod, and the internal diameter of outer sleeve matches with the external diameter at the two ends of the tubular bone defect that needs bone grafting, and inner sleeve is positioned at outer sleeve; The length of outer sleeve is greater than the length of inner sleeve; Connecting rod is inserted in the inner sleeve, and the diameter of connecting rod and the internal diameter of inner sleeve are complementary, and the length of connecting rod is greater than the length of inner sleeve.
The above-mentioned bone grafting device that is used for the tubulose bone defect healing, said inner sleeve diameter is 3mm-3.5cm, and the outer sleeve diameter is 4mm-5cm, and length is 2-15cm.
The above-mentioned bone grafting device that is used for the tubulose bone defect healing, the barrel of said inner sleeve and outer sleeve is the RF that mesh is arranged.
The above-mentioned bone grafting device that is used for the tubulose bone defect healing, said inner sleeve and outer sleeve are made by degradable magnesium alloy.
Usefulness of the present invention is: the connecting rod in the inner sleeve of double layer sleeve barrel can firmly connect damaged tubular bone two ends; Fill between inner sleeve and the outer sleeve from body high-quality spongy bone; Can play bone grafting simultaneously and strengthen fixed effect; The degradable magnesium alloy material also has the osteogenesis of inducing effect, thereby promotes union of fracture except that bone grafting, the effect of enhancing stability maintenance.The present invention is simple in structure, easy to use, bone grafting is firm, intensity is big, and the patient can early ambulation, carries out reconditioning, has good clinical effectiveness, is worth of widely use.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is user mode figure of the present invention.
Labelling is following among the figure: tubular bone 1, outer sleeve 2, inner sleeve 3, connecting rod 4, screw 5, bone grafting 6.
The specific embodiment
The present invention is made up of outer sleeve 2, inner sleeve 3, connecting rod 4.
Show among the figure that the two ends of outer sleeve 2 are enclosed within the two ends that need the tubular bone of bone grafting defect, and fixing by screw 5.
Show among the figure that inner sleeve 3 is positioned at outer sleeve 2, connecting rod 4 is inserted in the inner sleeve 3, and the internal diameter of the diameter of connecting rod 4 and inner sleeve 3 is complementary, and the two ends of connecting rod 4 are inserted in the pulp cavity of tubular bone 1.Connecting rod 4 is shaft-like or column structure, generally can adopt intramedullary pin.
Show among the figure; The barrel of inner sleeve and outer sleeve is the RF that mesh is arranged, and inner sleeve and outer sleeve are made by degradable magnesium alloy, and the degradable magnesium alloy material is except that bone grafting, the effect of enhancing stability maintenance; Also have the osteogenesis of inducing effect, thereby promote union of fracture.
Method for using of the present invention is following:
At first the patient is inserted the space between outer sleeve 2 and the inner sleeve 3 from body high-quality spongy bone; Damaged tubular bone 1 is drawn back to two ends again, outer sleeve 2, inner sleeve 3 are placed on tubular bone 1 defect location, the center, two ends of the two ends of inner sleeve 3 and tubular bone 1 is relative; Then with damaged tubular bone 1 to justified, the two ends of outer sleeve 2 are enclosed within on the tubular bone 1 at two ends; Squeeze into connecting rod 4 from an end of tubular bone 1 along pulp cavity, generally adopt intramedullary pin, intramedullary pin passes from inner sleeve 3, gets into the pulp cavity of the bottom of tubular bone 1, and two sections tubular bones 1 are firmly coupled together; With screw 5 outer sleeve 2 and tubular bone 1 are fastenedly connected at last.
Claims (4)
1. bone grafting device that is used for the tubulose bone defect healing; It is characterized in that: it is made up of outer sleeve (2), inner sleeve (3), connecting rod (4); The internal diameter of outer sleeve (2) matches with the external diameter at the two ends of the tubular bone that needs bone grafting (1) defect; Inner sleeve (3) is positioned at outer sleeve (2), and the length of outer sleeve (2) is greater than the length of inner sleeve (3), and connecting rod (4) is inserted in the inner sleeve (3); The internal diameter of the diameter of connecting rod (4) and inner sleeve (3) is complementary, and the length of connecting rod (4) is greater than the length of inner sleeve (3).
2. the bone grafting device that is used for the tubulose bone defect healing according to claim 1 is characterized in that: said inner sleeve (3) diameter is 3mm-3.5cm, and outer sleeve (2) diameter is 4mm-5cm, and length is 2-15cm.
3. the bone grafting device that is used for the tubulose bone defect healing according to claim 2 is characterized in that: the barrel of said inner sleeve (3) and outer sleeve (2) is the RF that mesh is arranged.
4. the bone grafting device that is used for the tubulose bone defect healing according to claim 3 is characterized in that: said inner sleeve (3) and outer sleeve (2) are made by degradable magnesium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102236890A CN102389329A (en) | 2011-08-05 | 2011-08-05 | Bone grafting device for tubular bone defect healing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102236890A CN102389329A (en) | 2011-08-05 | 2011-08-05 | Bone grafting device for tubular bone defect healing |
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| CN102389329A true CN102389329A (en) | 2012-03-28 |
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| CN2011102236890A Pending CN102389329A (en) | 2011-08-05 | 2011-08-05 | Bone grafting device for tubular bone defect healing |
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| CN (1) | CN102389329A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102813564A (en) * | 2012-08-23 | 2012-12-12 | 中国人民解放军第四军医大学 | Titanium alloy artificial bone/intramedullary nail compression fixation system and preparation method thereof |
| CN103908328A (en) * | 2013-01-06 | 2014-07-09 | 香港中文大学 | Orthopedic implant |
| CN104188738A (en) * | 2014-08-14 | 2014-12-10 | 卢建熙 | Multi-functional internal bone generator |
| CN104382636A (en) * | 2014-12-10 | 2015-03-04 | 哈尔滨市第一医院 | Device for repairing fractured bones and method for manufacturing device |
| CN104523325A (en) * | 2014-12-10 | 2015-04-22 | 哈尔滨市第一医院 | Device for repairing bone shortcomings and manufacturing method thereof |
| CN105662655A (en) * | 2016-03-16 | 2016-06-15 | 张黎 | Hand and foot bone defect implant |
| EP3142610A4 (en) * | 2014-05-13 | 2018-01-24 | Matthew Becker | Modular device for preventing compression and instability in a segmental defect repair scaffold |
| CN109310503A (en) * | 2016-06-13 | 2019-02-05 | 德普伊新特斯产品公司 | Bone graft cage |
| US10695181B2 (en) | 2016-02-16 | 2020-06-30 | DePuy Synthes Products, Inc. | Bone graft cage |
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| CN200948146Y (en) * | 2006-09-27 | 2007-09-19 | 四川大学华西医院 | Surgery appliance for reducing pressure of ischemic necrosis core of femoral head |
| CN101785715A (en) * | 2010-03-12 | 2010-07-28 | 张纯朴 | Auxiliary bone grafting bracket for large bone defect |
| CN201631352U (en) * | 2010-03-24 | 2010-11-17 | 崔绪芳 | Bone implanter |
| CN202235615U (en) * | 2011-08-05 | 2012-05-30 | 张英泽 | Bone grafting device for union of tubular bone loss |
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- 2011-08-05 CN CN2011102236890A patent/CN102389329A/en active Pending
Patent Citations (5)
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| US5211664A (en) * | 1992-01-14 | 1993-05-18 | Forschungsinstitut, Davos Laboratorium Fur Experimentelle Chirugie | Shell structure for bone replacement |
| CN200948146Y (en) * | 2006-09-27 | 2007-09-19 | 四川大学华西医院 | Surgery appliance for reducing pressure of ischemic necrosis core of femoral head |
| CN101785715A (en) * | 2010-03-12 | 2010-07-28 | 张纯朴 | Auxiliary bone grafting bracket for large bone defect |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102813564A (en) * | 2012-08-23 | 2012-12-12 | 中国人民解放军第四军医大学 | Titanium alloy artificial bone/intramedullary nail compression fixation system and preparation method thereof |
| CN102813564B (en) * | 2012-08-23 | 2015-12-09 | 中国人民解放军第四军医大学 | A kind of preparation method of titanium alloy artificial bone/intramedullary nail compression fixation system |
| CN103908328A (en) * | 2013-01-06 | 2014-07-09 | 香港中文大学 | Orthopedic implant |
| EP3142610A4 (en) * | 2014-05-13 | 2018-01-24 | Matthew Becker | Modular device for preventing compression and instability in a segmental defect repair scaffold |
| US10206781B2 (en) | 2014-05-13 | 2019-02-19 | The University Of Akron | Modular device for preventing compression and instability in a segmental defect repair scaffold |
| CN104188738A (en) * | 2014-08-14 | 2014-12-10 | 卢建熙 | Multi-functional internal bone generator |
| CN104188738B (en) * | 2014-08-14 | 2018-04-27 | 卢建熙 | Multifunctional body in-seam generator |
| CN104523325A (en) * | 2014-12-10 | 2015-04-22 | 哈尔滨市第一医院 | Device for repairing bone shortcomings and manufacturing method thereof |
| CN104382636B (en) * | 2014-12-10 | 2017-02-15 | 哈尔滨市第一医院 | Device for repairing fractured bones and method for manufacturing device |
| CN104523325B (en) * | 2014-12-10 | 2017-02-15 | 哈尔滨市第一医院 | Device for repairing bone shortcomings and manufacturing method thereof |
| CN104382636A (en) * | 2014-12-10 | 2015-03-04 | 哈尔滨市第一医院 | Device for repairing fractured bones and method for manufacturing device |
| US10695181B2 (en) | 2016-02-16 | 2020-06-30 | DePuy Synthes Products, Inc. | Bone graft cage |
| CN105662655A (en) * | 2016-03-16 | 2016-06-15 | 张黎 | Hand and foot bone defect implant |
| CN109310503A (en) * | 2016-06-13 | 2019-02-05 | 德普伊新特斯产品公司 | Bone graft cage |
| CN109310503B (en) * | 2016-06-13 | 2020-07-03 | 德普伊新特斯产品公司 | Bone graft cage |
| US11051944B2 (en) | 2016-06-13 | 2021-07-06 | DePuy Synthes Products, Inc. | Bone graft cage |
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Application publication date: 20120328 |