CN101502435B - Fixation hook for correcting malformation of vertebral column - Google Patents
Fixation hook for correcting malformation of vertebral column Download PDFInfo
- Publication number
- CN101502435B CN101502435B CN 200910009270 CN200910009270A CN101502435B CN 101502435 B CN101502435 B CN 101502435B CN 200910009270 CN200910009270 CN 200910009270 CN 200910009270 A CN200910009270 A CN 200910009270A CN 101502435 B CN101502435 B CN 101502435B
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- China
- Prior art keywords
- hook
- anchor
- lock slots
- strut
- rib
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- Expired - Fee Related
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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
- A61B17/7047—Clamps comprising opposed elements which grasp one vertebra between them
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Neurology (AREA)
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- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Surgical Instruments (AREA)
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- Orthopedics, Nursing, And Contraception (AREA)
Abstract
A fixation hook used for correcting spinal deformity comprises a fixation hook body and a protective hook. The fixation hook is characterized in that the fixation hook body comprises a locking groove connected with a brace rod, a locking groove connected with the protective hook and a hook head; wherein, the locking groove connected with the brace rod is positioned on one side of and parallel to the locking groove connected with the protective hook; thus, the locking groove connected with the brace rod and the locking groove connected with the protective hook are mutually separated in parallel and can not increase the thickness of the hook body; the position on which a rib is supported by a support hook is not changed, which can be far away from the brace rod and a spine so as to bring the supporting function into full play. In particular, the protective hook is provided with a clamping platform at the kink of the hook, the neck of the hook is long and the hook head has at least two types of length, thereby being convenient for the doctors to use the apparatus during the operation.
Description
Technical field
The present invention relates to a kind of fixation hook that is used to correct deformity of spine, especially age in off year congenital spine malformation rib appliance fixation hook.
Background technology
In the prior art, in insert orthosis top the strong point be moved to the top rib, the strong point of below can below on rib, spinal column or the ilium.By strutting rib, support force can be communicated to spinal column and reaches the purpose of correcting deformity of spine on the one hand, strutting of rib enlarged the thoracic cavity on the other hand, has corrected the growth that the thoracic cavity deformity benefits child's cardiopulmonary internal organs of growth promoter.If the strong point also growth of useful abdominal viscera on lumbar vertebra or ilium of below.In recent years research and clinical practice show that the top strong point moves on to rib and goes up the less spontaneous fusion that vertebral body is taken place than being placed on the top vertebral body, so the growth promoter of little effect infant.
For child's in age in off year congenital spine malformation (for example: scoliosis, the spinal column right side is prominent, left of spine is prominent, scheuermann kyphosis etc.), can correct by the operation method that rib appliance in the body is set in infant 1-9 when year.
This rib appliance mainly comprises a strut, following holder and upper support hook.Following holder generally is fixed on spinal column or the appropriate location ilium by screw etc., also can be fixed on the rib of below by the rib hook.With after the below holder connects, a side chain is tight by strut for the upper support hook, and opposite side struts, and reaches locking equally behind the appropriate location.
The upper support hook is supporting rib, and is provided with anchor, to prevent because infant is movable or rib breaks away from the upper support hook along with the growth in stature support hook of infant is lax.
Yet in the prior art, the anchor of upper support hook and the strut centrage that coexists overlaps, and therefore, the thickness of hook strengthens relatively, and to the too thick outstanding skin surface of hook that modest child implants, compressing subcutaneous tissue and skin cause downright bad the infection.Also easy and scapula friction forms synovial bursa.In addition, it is convenient inadequately in operation process doctor operation that the upper support hook position of supporting rib is arranged in the position of strut.
Summary of the invention
The purpose of this invention is to provide a kind ofly by being supported on the rib, strut the fixation hook that rib is corrected deformity of spine and enlarged thorax, it makes the doctor can more freely select the position of suitable support rib.
Another object of the present invention provides and a kind ofly is used to correct chest deformity and enlarges the thoracic cavity and correct the fixation hook of deformity of spine by supporting rib, and it makes the doctor easy to operate in operation process.
For this reason, the invention provides a kind of fixation hook that is used to correct deformity of spine, it comprises fixation hook main body and anchor, it is characterized in that, described fixation hook main body comprises lock slots that is connected with strut and the lock slots that is connected with anchor and supports the hook tongue of rib, the lock slots that is connected with strut is positioned at a side of the lock slots that is connected with anchor, and is parallel to the lock slots that is connected with anchor, can not increase coupler body thickness.
Preferably, described anchor is provided with the clamping platform at the kink of hook.
Preferably, the lock slots that is connected with strut all is provided with helicitic texture with the lock slots that is connected with anchor, and lock-screw is locked in strut and anchor shank respectively lock slots that is connected with strut and the lock slots that is connected with anchor by matching with this helicitic texture.
Preferably, the neck of hook of described anchor has and can take root according to the sufficient length that needs cutting for the art traditional Chinese medical science.
Preferably, the hook tongue of described fixation hook has at least two kinds of short and long length that can be selected by the doctor according to the thickness that supports rib and rib radical difference.
According to the present invention, described fixation hook main body comprises lock slots that is connected with strut and the lock slots that is connected with anchor and supports the hook tongue of rib.The lock slots that is connected with strut is positioned at a side of the lock slots that is connected with anchor, and is parallel to the lock slots that is connected with anchor.Like this, the lock slots that is connected with strut separates in parallel to each other with the lock slots that is connected with anchor, general support hook supports the lateral surface of the position of rib at the strut lock slots, can be away from strut, slightly away from spinal column, play due supporting role, and strut is in spinal column side so the activity of strut little effect scapula, also makes things convenient for being connected of strut and following holder simultaneously.
Particularly, the hook tongue of described anchor can have long have be provided with some kinds of models shortly, and shank is longer, can be according to needs cutting in the art.A kind of hook tongue is long slightly than another, can be used for the roomy occasion of rib, or is supported on simultaneously on several ribs, to strengthen the stability of the top rib strong point.
Particularly, described anchor is provided with the clamping platform at the kink of hook, like this, is convenient to the doctor and uses apparatus in operation process, clamps rib.
To brief description of drawings
Fig. 1 is the perspective view of fixation hook that is used to correct deformity of spine according to prior art;
Fig. 2 is a perspective view that is used to correct the fixation hook of deformity of spine according to of the present invention.
The specific embodiment
As shown in Figure 1, according to the fixation hook that is used to correct deformity of spine of prior art, support hook 101 is generally supporting rib, and is provided with anchor 102, to prevent along with infant activity or the supported rib of growth in stature break away from support hook 101.Support hook 101 slidably to suitable height and position, is locked on the strut 103 by lock screw 104 on strut 103 then.
The centrage of the centrage of support hook 101 and strut 103 overlaps, and like this, the position that support hook 101 supports rib can only be positioned at the position of strut 103, and therefore, the degree of freedom of the relative thicker selection strong point of coupler body thickness is less.In addition, the position that is arranged in strut 103, support hook 101 position of supporting ribs makes operation process doctor operation convenient inadequately.
Further embodiments of the invention are described below in conjunction with accompanying drawing.
According to the present invention by strut rib be used to correct deformity of spine and correct the embodiment that chest deformity enlarges the fixation hook in thoracic cavity, as shown in Figure 2, the fixation hook 1 that is used to correct deformity of spine comprises fixation hook main body 11 and support hook 12.Described fixation hook main body 11 comprises lock slots 13 that is connected with strut and the lock slots 15 that is connected with anchor.The lock slots 13 that is connected with strut is positioned at a side of the lock slots 15 that is connected with anchor, and is parallel to the lock slots 15 that is connected with anchor.
The lock slots 13 that is connected with strut is provided with helicitic texture 14, and the lock-screw (not shown) is locked in the strut (not shown) in the lock slots 13 that is connected with strut by matching with this helicitic texture 14.
Similarly, the lock slots 15 that is connected with anchor all is provided with helicitic texture, and lock-screw 16 is locked in anchor 2 by matching with this helicitic texture the lock slots 15 that is connected with anchor.
Particularly, described anchor 2 comprises that hook tongue 21, hook tongue clamp platform 22, the neck of hook 23 and the neck of hook and clamp platform 24.Wherein, the hook tongue clamping platform 22 and the neck of hook clamp the kink that platform 24 is arranged at hook 2.In operation process, the doctor can use prelum by carrying out clamp operation between gib head clamping platform 24 and coupler body easily.
According to the present invention, described fixation hook main body 11 comprises lock slots 13 that is connected with strut and the lock slots 15 that is connected with anchor.The lock slots 13 that is connected with strut is positioned at a side of the lock slots 15 that is connected with anchor, and is parallel to the lock slots 15 that is connected with anchor.Like this, the lock slots 13 that is connected with strut separates in parallel to each other with the lock slots 15 that is connected with anchor, and the position that support hook 12 supports rib can be away from strut at the lateral surface of strut holddown groove, and slightly away from spinal column, support force can not reduce.And if the supported underneath of eyelid retractor point is positioned at spinal column, be more convenient for the connection of strut.
Particularly, described anchor 2 is provided with clamping platform 22,24 at the kink of hook, like this, is convenient to the doctor and uses apparatus in operation process.
Claims (5)
1. fixation hook (1) that is used to correct deformity of spine, it comprises fixation hook main body (11) and anchor (2), it is characterized in that,
Described fixation hook main body (11) comprises lock slots (13) that is connected with strut and the lock slots (15) that is connected with anchor (2), and the support hook (12) that comprises rib, the lock slots that is connected with strut (13) is positioned at a side of the lock slots (15) that is connected with anchor (2), and is parallel to the lock slots (15) that is connected with anchor (2).
2. the fixation hook that is used to correct deformity of spine as claimed in claim 1 is characterized in that, described anchor is provided with the clamping platform at the kink of hook.
3. the fixation hook that is used to correct deformity of spine as claimed in claim 1, it is characterized in that, the lock slots that is connected with strut all is provided with helicitic texture with the lock slots that is connected with anchor, and lock-screw is locked in strut and anchor respectively lock slots that is connected with strut and the lock slots that is connected with anchor by matching with this helicitic texture.
4. the fixation hook that is used to correct deformity of spine as claimed in claim 1 is characterized in that, the neck of hook of described anchor has and can take root according to the sufficient length that needs cutting for the art traditional Chinese medical science.
5. the fixation hook that is used to correct deformity of spine as claimed in claim 1, it is characterized in that the hook tongue (21) of the anchor of described fixation hook (2) has at least two kinds of short and long length that can be selected by the doctor according to the thickness that supports rib and rib radical difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910009270 CN101502435B (en) | 2008-03-07 | 2009-02-26 | Fixation hook for correcting malformation of vertebral column |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820005150.1 | 2008-03-07 | ||
| CN200820005150 | 2008-03-07 | ||
| CN 200910009270 CN101502435B (en) | 2008-03-07 | 2009-02-26 | Fixation hook for correcting malformation of vertebral column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101502435A CN101502435A (en) | 2009-08-12 |
| CN101502435B true CN101502435B (en) | 2011-12-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910009270 Expired - Fee Related CN101502435B (en) | 2008-03-07 | 2009-02-26 | Fixation hook for correcting malformation of vertebral column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101502435B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6433460B2 (en) * | 2016-06-01 | 2018-12-05 | ミズホ株式会社 | Bone fixation device |
| WO2019030902A1 (en) * | 2017-08-10 | 2019-02-14 | ミズホ株式会社 | Bone fixation device |
-
2009
- 2009-02-26 CN CN 200910009270 patent/CN101502435B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101502435A (en) | 2009-08-12 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20130226 |