CN105902308A - Novel tibia intramedullary fastening nail - Google Patents
Novel tibia intramedullary fastening nail Download PDFInfo
- Publication number
- CN105902308A CN105902308A CN201610219814.3A CN201610219814A CN105902308A CN 105902308 A CN105902308 A CN 105902308A CN 201610219814 A CN201610219814 A CN 201610219814A CN 105902308 A CN105902308 A CN 105902308A
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- China
- Prior art keywords
- bone cement
- medullary fixation
- pavilion
- nail
- fixation nail
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/72—Intramedullary pins, nails or other devices
- A61B17/7283—Intramedullary pins, nails or other devices with special cross-section of the nail
Abstract
A novel tibia intramedullary fastening nail comprises a solid middle shaft and a bone cement layer; the solid middle shaft is wrapped with the bone cement layer, and the surface of the bone cement layer is of a smooth cylinder shape; two ends of the intramedullary nail are respectively provided with two intramedullary nail near end locking holes and two intramedullary nail far end locking holes; the intramedullary nail near end is also provided with an outer sighting device installing screw hole; the outer sighting device installing screw hole is connected with an outer sighting device; and a supporting device is disposed in the bone cement layer. The cabinet hole structured tibia intramedullary fastening nail capable of preventing infection has dual functions of infection control and bone diaphysis part stabilization, and the clinical problem of long bone diaphysis infection with nonunion is solved.
Description
Technical field
The present invention relates to medical instruments field, especially relate to a kind of novel shin fixing nail in bone marrow.
Background technology
Long diaphysis infects the treatment of companion's disunion and relates to controlling and the stable two fold problem of key local of infection.The factor causing long diaphysis to infect disunion includes the pathologisch Bruch etc. that open fracture, internal fixation postoperative infection, chronic osteomyelitis cause.Traditional treatment aspect, first carries out the operation wound clearing of local, and whole body application antibiotic；Then after infection control, again perform the operation row Fracture internal fixaiion or extenal fixation.At present, the filling materials for curing cervical of the load antibiotic infecting local is a useful technology, and the long slow release of antibiotic of high local concentrations can effectively treat infection.Representational carrier is exactly the topical application of PMMA bone cement PMMA.As confirmed to be effectively used for treating the PMMA pelletron of the load antibiotic of osteomyelitis and open fracture by clinic.Although this technology can promote the control of osteoarthrosis local infection, but remain a need for extra operation and remove pelletron.Additionally, above-mentioned Therapeutic Method can further result in patient's misery, additionally increase financial burden.At present, there is document to report, for long diaphysis infectivity disunion, use coating load antibiotic P MMA bone cement outside Common intramedullary nail to treat, or fix for the intramedullary rod of medulla preparation load antibiotic P MMA bone cement with Kirschner wire.But both still suffer from operation wound again and fixing the strongest and bone cement fragmentation can not take may.
Summary of the invention
In order to overcome the deficiency in background technology, the invention discloses the shin fixing nail in bone marrow of a kind of novel load antibiotic-loaded bone cement.For tibial shaft bone does not connect, companion infects, and this Intramedullary nail is reliable fixing double effects in having infection and marrow.And coming off of load bone cement can be avoided, the purpose reaching to cure Infected nonunion with this.
In order to realize described goal of the invention, the present invention adopts the following technical scheme that
A kind of Novel tibia Medullary fixation nail, including solid axis and bone cement layer, described bone cement layer is wrapped in the periphery of solid axis, and surface is smooth cylindrical type；The near-end of described Medullary fixation nail nail rod is provided with two near-end locking screwed holes, and nail rod far-end is provided with two far-end locking screwed holes, and described Medullary fixation nail near-end is additionally provided with outer sight installation screw, and described outer sight installation screw connects outer sight；The described near-end near far-end locks screwed hole and is additionally provided with support means inside the far-end locking screwed hole bone cement layer of far-end, and described support means includes periphery flank and horizontal even pavilion plate；Described periphery flank is long strip type sheet material shape, and a long limit of described periphery flank is fixed on solid axis, and vertical with the point of contact tangential direction of solid axis；The cylindrical surface of bone cement layer is stretched on another long limit of described periphery flank；Described periphery flank is uniformly distributed around solid axis, is horizontally arranged with several horizontal even pavilion plates between two Adjacent circumferential flanks, and between said two Adjacent circumferential flank and the horizontal even pavilion plate of neighbouring two, composition fills the pavilion groove of bone cement.
In order to improve technical scheme further, between adjacent two periphery flanks of the present invention, it is evenly arranged with several horizontal even pavilion plates vertically；The sheet material both sides of described each periphery flank, horizontal even pavilion plate is crisscross arranged.
In order to improve technical scheme further, a diameter of 4mm of solid axis of the present invention, the trans D of each periphery flank is 4-6mm, a diameter of 8 ~ 10mm of whole Medullary fixation nail.
In order to improve technical scheme further, the material of Medullary fixation of the present invention nail is titanium.
In order to improve technical scheme further, on solid axis axial direction of the present invention, the spacing of each two pavilion plate is 0.5cm.
In order to improve technical scheme further, around the solid axis of two Medullary fixation nail near-end lock hole of the present invention and two Medullary fixation nail positions, far-end locking hole, it is only filled with bone cement.
In order to improve technical scheme further, following closely far-end locking holes be provided with support means with two Medullary fixation between two Medullary fixation nail near-end locking screwed hole of the present invention, described support means includes periphery flank and horizontal even pavilion plate；Described periphery flank is long strip type sheet material shape, and a long limit of described periphery flank is fixed on solid axis, and vertical with the point of contact tangential direction of solid axis；The cylindrical surface of bone cement layer is stretched on another long limit of described periphery flank；Described periphery flank is uniformly distributed around solid axis, is horizontally arranged with several horizontal even pavilion plates between two Adjacent circumferential flanks, horizontal even pavilion plate one the ring-type pavilion ring of composition on same axial location；Between two Adjacent circumferential flanks and the horizontal even pavilion plate of neighbouring two, composition fills the pavilion groove of bone cement.
In order to improve technical scheme further, being additionally provided with antibiotic and skeletal grain inside bone cement layer of the present invention, described antibiotic is gentamycin, and one end of described skeletal grain is arranged on inside bone cement layer, the other end stretches to the cylindrical surface of bone cement layer, and the granularity of described skeletal grain is 150 ~ 300um.
Invention invention invention invention invention invention invention, owing to have employed technique scheme, there is advantages that
A kind of pavilion pore structure shin fixing nail in bone marrow preventing and treating infection of the present invention, has controlling and the stable dual function of key local of infection simultaneously, solves long diaphysis and infect the clinical problem of companion's disunion.The present invention is practical, and preparation manipulation is simple.Between adjacent stringer flank, there is lateral connection pavilion plate, and uniformly stagger.Conventional mediation contains antibiotic-loaded bone cement, is loaded in the hole, pavilion of intramedullary pin by bone cement at dough period, and is removed by the bone cement beyond intramedullary pin surface；Ensure compacting and the finishing on whole intramedullary pin surface of bone cement in hole, pavilion simultaneously.
It addition, the present invention adds gentamycin in shin fixing nail in bone marrow, utilize the high local concentrations antibiotic therapy infection of joint and prevent first prosthetic replacement to infect.Add skeletal grain and preferably and bone fusion can prevent rejection.Can well be applied to the treatment of tibial shaft bone, and ensure that it does not connect companion and infects, intramedullary pin of the present invention is reliable fixing double effects in having infection and marrow.And coming off of load bone cement can be avoided, the purpose reaching to cure Infected nonunion with this.
Accompanying drawing explanation
Fig. 1 is the perspective view of Novel tibia Medullary fixation of the present invention nail.
In figure: outer sight installation screw；2, near-end locking screwed hole；3, solid axis；4, periphery flank；5, horizontal even pavilion plate；6, pavilion groove；7, far-end locking screwed hole.
Detailed description of the invention
The explanation present invention that can be detailed by the following examples, the open purpose of the present invention is intended to protect all technological improvements in the scope of the invention.
Following closely in conjunction with a kind of Novel tibia Medullary fixation described in accompanying drawing 1, a kind of Novel tibia Medullary fixation nail, including solid axis 3 and bone cement layer, described bone cement layer is wrapped in the periphery of solid axis 3, and surface is smooth cylindrical type；The near-end of described Medullary fixation nail nail rod is provided with two near-end locking screwed holes 2, nail rod far-end is provided with two far-end locking screwed holes 7, described Medullary fixation nail near-end is additionally provided with outer sight installation screw 1, and described outer sight installation screw 1 connects outer sight；The described near-end near far-end locks screwed hole 2 and is additionally provided with support means inside the far-end locking screwed hole 7 bone cement layer of far-end, and described support means includes periphery flank 4 and horizontal even pavilion plate 5；Described periphery flank 4 is long strip type sheet material shape, and a long limit of described periphery flank 4 is fixed on solid axis 3, and vertical with the point of contact tangential direction of solid axis 3；The cylindrical surface of bone cement layer is stretched on another long limit of described periphery flank 4；Described periphery flank 4 is uniformly distributed around solid axis 3, is horizontally arranged with several horizontal even pavilion plates 5 between two Adjacent circumferential flanks 4, and between said two Adjacent circumferential flank 4 and the horizontal even pavilion plate 5 of neighbouring two, composition fills the pavilion groove 6 of bone cement.
Between described adjacent two periphery flanks 4, it is evenly arranged with several horizontal even pavilion plates 5 vertically；The sheet material both sides of described each periphery flank 4, horizontal even pavilion plate 5 is crisscross arranged.A diameter of 4mm of described solid axis 3, the trans D of each periphery flank 4 is 4-6mm, a diameter of 8 ~ 10mm of whole Medullary fixation nail.The material of described Medullary fixation nail is titanium.On described solid axis 3 axial direction, the spacing of each two pavilion plate is 0.5cm.It is only filled with bone cement around the solid axis 3 of said two Medullary fixation nail near-end lock hole 2 and two Medullary fixation nail positions, far-end locking hole 7.Following closely far-end locking holes 7 be provided with support means with two Medullary fixation between said two Medullary fixation nail near-end locking screwed hole 2, described support means includes periphery flank 4 and horizontal even pavilion plate 5；Described periphery flank 4 is long strip type sheet material shape, and a long limit of described periphery flank 4 is fixed on solid axis 3, and vertical with the point of contact tangential direction of solid axis 3；The cylindrical surface of bone cement layer is stretched on another long limit of described periphery flank 4；Described periphery flank 4 is uniformly distributed around solid axis 3, is horizontally arranged with several horizontal even pavilion plates 5 between two Adjacent circumferential flanks 4, and the horizontal even pavilion plate 5 on same axial location forms a ring-type pavilion ring；Between two Adjacent circumferential flanks 4 and the horizontal even pavilion plate 5 of neighbouring two, composition fills the pavilion groove 6 of bone cement.Being additionally provided with antibiotic and skeletal grain inside described bone cement layer, one end of described skeletal grain is arranged on inside bone cement layer, and the other end stretches to the cylindrical surface of bone cement layer.
The present invention invents described a kind of pavilion pore structure tibial intramedullary nailing loading Anti-infective bone cement.In use, being placed on operating-table by intramedullary pin of the present invention, mixed with monomer by powder by commodity requirement by the PMMA of load antibiotic, vacuum is in harmonious proportion to bone cement dough period；Bone cement carefulness is filled in all pavilions groove of New Tibia Intramedullary Nail, and keeps filling bone cement and intramedullary pin surfacing；It is fully hardened that room temperature standing arrives bone cement in 10 minutes, and is combined as a whole with intramedullary pin.So far, prepared by the pavilion pore structure tibial intramedullary nailing of load Anti-infective bone cement.Finally, tibial intramedullary nailing implanted prosthetics completes operation routinely.
Claims (8)
1. a Novel tibia Medullary fixation nail, is characterized in that: include solid axis (3) and bone cement layer, and described bone cement layer is wrapped in the periphery of solid axis (3), and surface is smooth cylindrical type；The near-end of described Medullary fixation nail nail rod is provided with two near-ends locking screwed hole (2), nail rod far-end is provided with two far-end locking screwed holes (7), described Medullary fixation nail near-end is additionally provided with outer sight installation screw (1), and described outer sight installation screw (1) connects outer sight；Being additionally provided with support means inside far-end locking screwed hole (7) the bone cement layer of described near-end locking screwed hole (2) near far-end and close far-end, described support means includes periphery flank (4) and horizontal even pavilion plate (5)；Described periphery flank (4) is long strip type sheet material shape, and a long limit of described periphery flank (4) is fixed on solid axis (3), and vertical with the point of contact tangential direction of solid axis (3)；The cylindrical surface of bone cement layer is stretched on another long limit of described periphery flank (4)；Described periphery flank (4) is uniformly distributed around solid axis (3), being horizontally arranged with several horizontal even pavilion plate (5) between two Adjacent circumferential flanks (4), between said two Adjacent circumferential flank (4) and horizontal even pavilion plate (5) of neighbouring two, composition fills the pavilion groove (6) of bone cement.
2. Novel tibia Medullary fixation nail as claimed in claim 1, is characterized in that: between described adjacent two periphery flanks (4), is evenly arranged with several horizontal even pavilion plate (5) vertically；The sheet material both sides of described each periphery flank (4), horizontal even pavilion plate (5) are crisscross arranged.
3. Novel tibia Medullary fixation nail as claimed in claim 1, is characterized in that: a diameter of 4mm of described solid axis (3), and the trans D of each periphery flank (4) is 4-6mm, a diameter of 8 ~ 10mm of whole Medullary fixation nail.
4. Novel tibia Medullary fixation nail as claimed in claim 1, is characterized in that: the material of described Medullary fixation nail is titanium.
5. Novel tibia Medullary fixation nail as claimed in claim 1, is characterized in that: on described solid axis (3) axial direction, the spacing of each two pavilion plate is 0.5cm.
6. Novel tibia Medullary fixation nail as claimed in claim 1, is characterized in that: the solid axis (3) of said two Medullary fixation nail near-end lock hole (2) and two Medullary fixation nail far-end locking hole (7) positions is around only filled with bone cement.
7. Novel tibia Medullary fixation nail as claimed in claim 1, it is characterized in that: follow closely far-end locking hole (7) be provided with support means with two Medullary fixation between said two Medullary fixation nail near-end locking screwed hole (2), described support means includes periphery flank (4) and horizontal even pavilion plate (5)；Described periphery flank (4) is long strip type sheet material shape, and a long limit of described periphery flank (4) is fixed on solid axis (3), and vertical with the point of contact tangential direction of solid axis (3)；The cylindrical surface of bone cement layer is stretched on another long limit of described periphery flank (4)；Described periphery flank (4) is uniformly distributed around solid axis (3), is horizontally arranged with several horizontal even pavilion plate (5) between two Adjacent circumferential flanks (4), horizontal even pavilion plate (5) one the ring-type pavilion ring of composition on same axial location；Between two Adjacent circumferential flanks (4) and horizontal even pavilion plate (5) of neighbouring two, composition fills the pavilion groove (6) of bone cement.
8. Novel tibia Medullary fixation nail as claimed in claim 1, it is characterized in that: inside described bone cement layer, be additionally provided with antibiotic and skeletal grain, described antibiotic is gentamycin, one end of described skeletal grain is arranged on inside bone cement layer, the other end stretches to the cylindrical surface of bone cement layer, and the granularity of described skeletal grain is 150 ~ 300um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610219814.3A CN105902308A (en) | 2016-04-11 | 2016-04-11 | Novel tibia intramedullary fastening nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610219814.3A CN105902308A (en) | 2016-04-11 | 2016-04-11 | Novel tibia intramedullary fastening nail |
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| Publication Number | Publication Date |
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| CN105902308A true CN105902308A (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610219814.3A Pending CN105902308A (en) | 2016-04-11 | 2016-04-11 | Novel tibia intramedullary fastening nail |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5433718A (en) * | 1992-08-20 | 1995-07-18 | Brinker; Mark | Antibiotic eluding intramedullary nail apparatus |
| US20080077140A1 (en) * | 2006-09-27 | 2008-03-27 | Osman Said G | Biologic Intramedullary Fixation Device and Methods of Use |
| CN201370627Y (en) * | 2009-02-25 | 2009-12-30 | 中国人民解放军第三军医大学 | Intramedullary nail carrying slow-releasing antibacterial peptide |
| US20100094292A1 (en) * | 2008-10-14 | 2010-04-15 | Zimmer, Inc. | Modular intramedullary nail |
| CN201861737U (en) * | 2010-09-17 | 2011-06-15 | 北京爱康宜诚医疗器材股份有限公司 | Far-end multi-groove type intramedullary extension rod |
| CN202365901U (en) * | 2011-12-05 | 2012-08-08 | 中国人民解放军军事医学科学院附属医院 | Hollow expansile pedicle screw capable of carrying particles |
| CN204951123U (en) * | 2015-05-20 | 2016-01-13 | 郑欣 | Parcel has intramedullary nail on antibiotic bone -cementum layer |
-
2016
- 2016-04-11 CN CN201610219814.3A patent/CN105902308A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5433718A (en) * | 1992-08-20 | 1995-07-18 | Brinker; Mark | Antibiotic eluding intramedullary nail apparatus |
| US20080077140A1 (en) * | 2006-09-27 | 2008-03-27 | Osman Said G | Biologic Intramedullary Fixation Device and Methods of Use |
| US20100094292A1 (en) * | 2008-10-14 | 2010-04-15 | Zimmer, Inc. | Modular intramedullary nail |
| CN201370627Y (en) * | 2009-02-25 | 2009-12-30 | 中国人民解放军第三军医大学 | Intramedullary nail carrying slow-releasing antibacterial peptide |
| CN201861737U (en) * | 2010-09-17 | 2011-06-15 | 北京爱康宜诚医疗器材股份有限公司 | Far-end multi-groove type intramedullary extension rod |
| CN202365901U (en) * | 2011-12-05 | 2012-08-08 | 中国人民解放军军事医学科学院附属医院 | Hollow expansile pedicle screw capable of carrying particles |
| CN204951123U (en) * | 2015-05-20 | 2016-01-13 | 郑欣 | Parcel has intramedullary nail on antibiotic bone -cementum layer |
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Application publication date: 20160831 |
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