CN103750892A - Titanium alloy bar used for minimally invasive surgeries of spine compression fractures - Google Patents
Titanium alloy bar used for minimally invasive surgeries of spine compression fractures Download PDFInfo
- Publication number
- CN103750892A CN103750892A CN201410061382.9A CN201410061382A CN103750892A CN 103750892 A CN103750892 A CN 103750892A CN 201410061382 A CN201410061382 A CN 201410061382A CN 103750892 A CN103750892 A CN 103750892A
- Authority
- CN
- China
- Prior art keywords
- titanium alloy
- alloy bar
- drag hook
- minimally invasive
- bar
- 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.)
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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
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7002—Longitudinal elements, e.g. rods
- A61B17/7011—Longitudinal element being non-straight, e.g. curved, angled or branched
-
- 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
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7002—Longitudinal elements, e.g. rods
- A61B17/7004—Longitudinal elements, e.g. rods with a cross-section which varies along its length
Abstract
The invention relates to a titanium alloy bar used for minimally invasive surgeries of spine compression fractures. The titanium alloy bar comprises a body and a pulling hook used in cooperation with the body. The body comprises a bar body. Guide wires are arranged at the two ends of the bar body, one end of each guide wire is fixedly connected with the bar body, and the other end of each guide wire is provided with a pulling ring used in cooperation with the pulling hook. The pulling hook penetrates into the pulling rings, the bar body is placed on the wounded part under guiding of the guide wires, the bar threading process is simple, visualized and clear, the titanium alloy bar is easy to operate, and the bar threading success rate is high. Operating steps are greatly simplified, operating time is shortened, and a real minimal invasive effect is achieved.
Description
Technical field
The present invention relates to a kind of internal fixation of spine device, be applicable to compression fracture of spine Minimally Invasive Surgery, specifically, relate to a kind of compression fracture of spine Minimally Invasive Surgery titanium alloy bar, belong to technical field of medical instruments.
Background technology
Spinal column is the primary structure that upper half of human body bears a heavy burden, with age, mineral and the bone matrix of osseous tissue change gradually, cause the fragility of bone to increase and fold resistance reduction, under the permanent effect of self gravitation, spongy bone is whole because the compression that can't bear the heavy load is wedge-like, and then easily causes compression fracture of vertabral body, and vehicle accident at present and high falling also easily cause compression fracture of spine in addition.At clinical common employing spinal internal fixation system, spinal injury is treated, and pedicle nail is fixed on vertebral body by pedicle of vertebral arch in spinal internal fixation system, hold is strong, is part indispensable in spinal internal fixation system.
At present, conventional pedicle nail is U-shaped pedicle nail, application number 201010133412.4, the patent of invention that name is called " pedicle nail " discloses a kind of pedicle nail, as shown in Figure 1, described pedicle nail comprises screw connection portion 1 and is located at the U-shaped connecting portion at screw connection portion 1 top, the cell wall outside of described U-shaped connecting portion is provided with horizontal incisura 2, described horizontal incisura 2 is slit into by U-shaped coupling part the broken part 3 that is positioned at epimere and can be fractureed and is positioned at hypomere and is used for placing and the sticking department 5 of locking pitman 4, wherein the groove depth of sticking department 5 equals the thickness sum of diameter and the lock nut 6 of pitman 4, the cell wall inner side of broken part 3 is provided with the female thread 7 for being connected with lock nut 6 with the cell wall inner side of part on sticking department 5, and the centre of described screw connection portion 1 is provided with hollow hole 8 from bottom to top.Owing to U-shaped connecting portion being designed to formed by sticking department and broken part two parts, therefore can make the U-shaped connecting portion of this invention pedicle nail be used for settling the U-shaped portion of pitman to divide prolongation many than conventional pedicle nail, handled easily person adjusts the position of the upper shed of U-shaped connecting portion under direct-view, thereby is conducive to the fractureing of arrangement, reset, locking and broken part of pitman; In the middle of screw connection portion due to pedicle nail, be provided with hollow hole, therefore operator can set up after pedicle nail passage by little otch punching under C arm X-ray machine perspective instructs, by special card punch, insert Kirschner wire and take Kirschner wire and insert pedicle nail as guiding, then lay pitman and reach reset, fixing object, have that operator placement is convenient and safe, otch is little, it is little to damage, be conducive to the advantages such as occupational protection that rehabilitation, fluoroscopy during operation number of times after operation in patients is few, be conducive to medical worker.
In realizing process of the present invention, inventor finds at least to exist in prior art following problem, the little otch of percutaneous is implanted after pedicle nail, due to subcutaneous, can not look at straight by naked eyes, so wearing pitman, percutaneous acquires a certain degree of difficulty, wear rod the time long, must increase operating time, large to surrounding tissue wound, increase postoperative infection probability simultaneously.
Summary of the invention
The technical problem to be solved in the present invention is for above deficiency, a kind of compression fracture of spine Minimally Invasive Surgery titanium alloy bar is provided, overcome pitman of the prior art and worn the defect that rod is difficult, operating time is long, surrounding tissue wound is large, postoperative infection probability is larger, adopt after titanium alloy bar of the present invention, have advantages of and wear that rod is simple, operating time is short, wound is little, postoperative infection probability is little.
For solving above technical problem, the present invention by the following technical solutions: a kind of compression fracture of spine Minimally Invasive Surgery titanium alloy bar, is characterized in that: described titanium alloy bar comprises body and the drag hook being used in conjunction with;
Described body is provided with for holding the draw ring of drag hook.
A prioritization scheme, described body comprises barred body, the two ends of barred body are connected with respectively seal wire.
Another kind of prioritization scheme, one end of described seal wire is fixedly connected with barred body, and the other end of seal wire is provided with draw ring.
Another prioritization scheme, described drag hook comprises drag hook body, and drag hook body comprises point and fixed part, and the point of drag hook body is provided with barb.
Further prioritization scheme, the fixed part of described drag hook body is connected with handle.
Prioritization scheme further, the diameter of described barred body is 5.5～6.0mm.
Prioritization scheme further, the length of described seal wire is not less than 20cm.
A prioritization scheme, described barred body is titanium alloy barred body.
Another kind of prioritization scheme, described drag hook body is J font bending.
Another prioritization scheme, described drag hook body is rustless steel or titanium alloy drag hook.
The present invention adopts after above technical scheme, compared with prior art, has the following advantages: comprise the body and the drag hook that are used in conjunction with, body comprises barred body, the two ends of barred body are respectively equipped with seal wire, and one end of seal wire is fixedly connected with barred body, and the other end of seal wire is provided with draw ring, draw ring and drag hook are used in conjunction with, drag hook is penetrated in draw ring, under seal wire guiding, barred body is inserted to affected part, wear rod motion simple, intuitive, clear, easy to operate, and it is high to wear excellent success rate.Greatly simplify operating procedure, shortened operating time, accomplished real Wicresoft.
Below in conjunction with drawings and Examples, the present invention is described in detail.
Accompanying drawing explanation
Accompanying drawing 1 is the using state schematic diagram of pedicle nail in prior art;
Accompanying drawing 2 is structural representations of titanium alloy bar body in the embodiment of the present invention;
Accompanying drawing 3 is structural representations of titanium alloy bar drag hook in the embodiment of the present invention;
In figure,
1-screw connection portion, the horizontal incisura of 2-, 3-broken part, 4-pitman, 5-sticking department, 6-lock nut, 7-female thread, 8-hollow hole, 9-body, 10-drag hook, 11-barred body, 12-seal wire, 13-draw ring, 14-drag hook body, 15-point, 16-fixed part, 17-barb, 18-handle.
The specific embodiment
Embodiment, as shown in Figures 2 and 3, a kind of compression fracture of spine Minimally Invasive Surgery titanium alloy bar, comprise body 9 and drag hook 10, described body 9 comprises barred body 11, described barred body 11 is cylindric, adopt titanium alloy material, for the ease of wearing rod in operation, the diameter of barred body 11 is the smaller the better, simultaneously in order to guarantee to meet enough intensity, the diameter of described barred body 11 is chosen as 5.5～6.0mm, the two ends of barred body 11 are connected with respectively seal wire 12, one end of seal wire 12 is fixedly connected with barred body 11, the other end of seal wire 12 is provided with draw ring 13, the diameter of described seal wire 12 is 2mm, the length of seal wire 12 should be not less than 20cm.
Described drag hook 10 comprises drag hook body 14, drag hook body 14 is in order to coordinate with draw ring 13, it is crooked that described drag hook body 14 is J font, drag hook body 14 comprises point 15 and fixed part 16, the point 15 of drag hook body 14 is provided with barb 17, the fixed part 16 of drag hook body 14 is connected with handle 18, and the material of described drag hook body 14 is rustless steel or titanium alloy, and the diameter of drag hook body 14 can pass through the draw ring 13 of seal wire 12 ends.
During use, select the rod of the titanium with seal wire of appropriate length, first by seal wire, the tail end otch through homonymy imports, the subcutaneous hollow pedicle U-shaped groove through homonymy, arrive the little otch of homonymy head end, drag hook is pulled it, under seal wire guiding, titanium rod is imported in subcutaneous hollow pedicle U-shaped groove, perspective position is good, is screwed into nut and fixes.In both sides seal wire and titanium rod binding site, cut off seal wire.
The above is giving an example of best mode for carrying out the invention, and the part of wherein not addressing is in detail those of ordinary skills' common practise.Protection scope of the present invention is as the criterion with the content of claim, and any equivalent transformation carrying out based on technology enlightenment of the present invention, also within protection scope of the present invention.
Claims (10)
1. a compression fracture of spine Minimally Invasive Surgery titanium alloy bar, is characterized in that: described titanium alloy bar comprises body (9) and the drag hook (10) being used in conjunction with;
Described body (9) is provided with the draw ring (13) for holding drag hook (10).
2. a kind of compression fracture of spine Minimally Invasive Surgery titanium alloy bar as claimed in claim 1, is characterized in that: described body (9) comprises barred body (11), and the two ends of barred body (11) are connected with respectively seal wire (12).
3. a kind of compression fracture of spine Minimally Invasive Surgery titanium alloy bar as claimed in claim 2, is characterized in that: one end of described seal wire (12) is fixedly connected with barred body (11), and the other end of seal wire (12) is provided with draw ring (13).
4. as a kind of compression fracture of spine Minimally Invasive Surgery titanium alloy bar of claim 1-3 as described in one of them, it is characterized in that: described drag hook (10) comprises drag hook body (14), drag hook body (14) comprises point (15) and fixed part (16), and the point (15) of drag hook body (14) is provided with barb (17).
5. a kind of compression fracture of spine Minimally Invasive Surgery titanium alloy bar as claimed in claim 4, is characterized in that: the fixed part (16) of described drag hook body (14) is connected with handle (18).
6. a kind of compression fracture of spine Minimally Invasive Surgery titanium alloy bar as claimed in claim 2, is characterized in that: the diameter of described barred body (11) is 5.5～6.0mm.
7. a kind of compression fracture of spine Minimally Invasive Surgery titanium alloy bar as claimed in claim 2, is characterized in that: the length of described seal wire (12) is not less than 20cm.
8. a kind of compression fracture of spine Minimally Invasive Surgery titanium alloy bar as claimed in claim 2, is characterized in that: described barred body (11) is titanium alloy barred body.
9. a kind of compression fracture of spine Minimally Invasive Surgery titanium alloy bar as claimed in claim 4, is characterized in that: described drag hook body (14) is J font bending.
10. a kind of compression fracture of spine Minimally Invasive Surgery titanium alloy bar as claimed in claim 4, is characterized in that: described drag hook body (14) is rustless steel or titanium alloy drag hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410061382.9A CN103750892B (en) | 2014-02-24 | 2014-02-24 | A kind of compression fracture of spine Minimally Invasive Surgery titanium alloy bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410061382.9A CN103750892B (en) | 2014-02-24 | 2014-02-24 | A kind of compression fracture of spine Minimally Invasive Surgery titanium alloy bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103750892A true CN103750892A (en) | 2014-04-30 |
| CN103750892B CN103750892B (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410061382.9A Expired - Fee Related CN103750892B (en) | 2014-02-24 | 2014-02-24 | A kind of compression fracture of spine Minimally Invasive Surgery titanium alloy bar |
Country Status (1)
| Country | Link |
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| CN (1) | CN103750892B (en) |
Citations (12)
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|---|---|---|---|---|
| CN2366063Y (en) * | 1999-03-08 | 2000-03-01 | 赵定麟 | Two direction adjusting titanium alloy apparatus for stretching-out, expressing and fixing vertebral articulations |
| US6086590A (en) * | 1999-02-02 | 2000-07-11 | Pioneer Laboratories, Inc. | Cable connector for orthopaedic rod |
| CN200939166Y (en) * | 2006-04-25 | 2007-08-29 | 中国人民解放军第二军医大学 | Shape memory vertebral canal forming fixer |
| CN101361674A (en) * | 2007-08-09 | 2009-02-11 | 邹德威 | Angle-adjustable intervertebral expansion device |
| CN101491454A (en) * | 2008-12-18 | 2009-07-29 | 杭州艾力康医药科技有限公司 | Titanium alloy cervical vertebra pressure fixer and preparation method thereof |
| CN102188280A (en) * | 2011-06-07 | 2011-09-21 | 中国人民解放军第三军医大学第三附属医院 | Memory alloy spine malformation orthotic rod set |
| US20110245875A1 (en) * | 2010-04-05 | 2011-10-06 | Neurosurj Research & Development, LLC | Sublaminar wired screwed device for spinal fusion |
| WO2011130606A2 (en) * | 2010-04-15 | 2011-10-20 | Hay J Scott | Pre-stressed spinal stabilization system |
| CN202288438U (en) * | 2011-09-17 | 2012-07-04 | 陈亿民 | Spinal column fixing rod |
| CN202376211U (en) * | 2011-11-14 | 2012-08-15 | 兰州西脉记忆合金股份有限公司 | Memory alloy vertebral body stabilizer |
| CN103040512A (en) * | 2013-01-08 | 2013-04-17 | 陆晓生 | Spinal deformity correcting instrument |
| CN203749545U (en) * | 2014-02-24 | 2014-08-06 | 张伟 | Titanium alloy bar for spine compression fracture minimally invasive surgery |
-
2014
- 2014-02-24 CN CN201410061382.9A patent/CN103750892B/en not_active Expired - Fee Related
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6086590A (en) * | 1999-02-02 | 2000-07-11 | Pioneer Laboratories, Inc. | Cable connector for orthopaedic rod |
| CN2366063Y (en) * | 1999-03-08 | 2000-03-01 | 赵定麟 | Two direction adjusting titanium alloy apparatus for stretching-out, expressing and fixing vertebral articulations |
| CN200939166Y (en) * | 2006-04-25 | 2007-08-29 | 中国人民解放军第二军医大学 | Shape memory vertebral canal forming fixer |
| CN101361674A (en) * | 2007-08-09 | 2009-02-11 | 邹德威 | Angle-adjustable intervertebral expansion device |
| CN101491454A (en) * | 2008-12-18 | 2009-07-29 | 杭州艾力康医药科技有限公司 | Titanium alloy cervical vertebra pressure fixer and preparation method thereof |
| US20110245875A1 (en) * | 2010-04-05 | 2011-10-06 | Neurosurj Research & Development, LLC | Sublaminar wired screwed device for spinal fusion |
| WO2011130606A2 (en) * | 2010-04-15 | 2011-10-20 | Hay J Scott | Pre-stressed spinal stabilization system |
| CN102188280A (en) * | 2011-06-07 | 2011-09-21 | 中国人民解放军第三军医大学第三附属医院 | Memory alloy spine malformation orthotic rod set |
| CN202288438U (en) * | 2011-09-17 | 2012-07-04 | 陈亿民 | Spinal column fixing rod |
| CN202376211U (en) * | 2011-11-14 | 2012-08-15 | 兰州西脉记忆合金股份有限公司 | Memory alloy vertebral body stabilizer |
| CN103040512A (en) * | 2013-01-08 | 2013-04-17 | 陆晓生 | Spinal deformity correcting instrument |
| CN203749545U (en) * | 2014-02-24 | 2014-08-06 | 张伟 | Titanium alloy bar for spine compression fracture minimally invasive surgery |
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| Publication number | Publication date |
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| CN103750892B (en) | 2016-01-06 |
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Granted publication date: 20160106 |
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