CN1176635C - An anterior cervical plate fusion device - Google Patents
An anterior cervical plate fusion device Download PDFInfo
- Publication number
- CN1176635C CN1176635C CNB021112991A CN02111299A CN1176635C CN 1176635 C CN1176635 C CN 1176635C CN B021112991 A CNB021112991 A CN B021112991A CN 02111299 A CN02111299 A CN 02111299A CN 1176635 C CN1176635 C CN 1176635C
- Authority
- CN
- China
- Prior art keywords
- plate
- titanium net
- bottom plate
- upper mounted
- mounted plate
- 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.)
- Expired - Fee Related
Links
- 230000004927 fusion Effects 0.000 title abstract description 15
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 52
- 229910052719 titanium Inorganic materials 0.000 claims description 48
- 239000010936 titanium Substances 0.000 claims description 48
- 210000003734 kidney Anatomy 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 238000012856 packing Methods 0.000 claims description 4
- 238000002271 resection Methods 0.000 abstract description 3
- 210000000988 bone and bone Anatomy 0.000 description 6
- 230000006837 decompression Effects 0.000 description 5
- 208000010392 Bone Fractures Diseases 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000005168 Intussusception Diseases 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 210000003692 ilium Anatomy 0.000 description 1
- 210000001621 ilium bone Anatomy 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Neurology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
本发明涉及医疗器械领域，特别是一种颈前路钢板融合器。它由上、下固定板和上、下钛网组成。上固定板与上钛网连成方管状，下固定板与下钛网连成方管状，后者可插入前者的方孔内。钛网的正、后、底端面有网孔，上固定板有腰形槽并配有固定螺栓和垫圈，下固定板有螺纹孔和腰形槽。在上、下固定板上各开有斜孔，螺钉经斜孔将本器固定于上下椎体。本发明适用于椎体切除后的多节段融合固定手术。
The invention relates to the field of medical devices, in particular to an anterior cervical fusion device. It consists of upper and lower fixed plates and upper and lower titanium mesh. The upper fixing plate and the upper titanium mesh are connected to form a square tube, and the lower fixing plate and the lower titanium mesh are connected to form a square tube, and the latter can be inserted into the square hole of the former. There are mesh holes on the front, back and bottom of the titanium mesh, the upper fixing plate has waist-shaped grooves and is equipped with fixing bolts and washers, and the lower fixing plate has threaded holes and waist-shaped grooves. There are oblique holes on the upper and lower fixing plates, and the screws fix the device to the upper and lower vertebral bodies through the oblique holes. The invention is suitable for multi-segment fusion and fixation operation after vertebral body resection.
Description
Technical field:
The present invention relates to medical instruments field, particularly a kind of equipment for fusing steel sheet before neck.
Background technology:
Behind the anterior cervical decompression there be bone-graft fusion internal fixation mode commonly used at present: 1, fusion device is implanted fusion, generally is only applicable to go merely intervertebral space decompression back bone-graft fusion; 2, plant bone mass adds the steel plate internal fixation, can both be applicable to that intervertebral space decompression back was fixing, also is applicable to the post-decompression internal fixation of vertebral resection, and its deficiency is to get the ilium bone grafting for need, and patient need drive a cutter in addition; 3, the titanium net adds throat road steel plate internal fixation, promptly adopts the fixing hypocentrum of going up of titanium alloy sheet, and supporting and to keep the height of intervertebral space, and the titanium net that will fill broken bone places between the hypocentrum, and the interior broken bone of titanium net can be merged mutually with vertebral body bone photo on every side.This technology is because broken bone is taken from the discarded bone that takes off when performing the operation, so can avoid ilium to get bone, but also there is following shortcoming: 1, anatomic form characteristics according to cervical vertebral body, the vertebral body lower edge has an inclination angle, thereby the contact surface of titanium net and top terminal plate of vertebral body should be the inclined-plane, promptly embedding the titanium net of going up relief groove between hypocentrum should be greater than the lateral surface near steel plate at the height near the canalis spinalis medial surface, but whole like this insertion is difficult to, thereby often the end face of titanium net is trimmed in actual applications and does not have the plane of inclined-plane, make the gap that is difficult to avoid leaving over a shortage spongy bone between titanium net and the terminal plate of vertebral body, influence bone and merge, also become the weak spot of conduction stress simultaneously; 2, titanium net shearing force is excessive easily is embedded in the vertebral body, highly loses thereby make between vertebral body; 3, steel plate and titanium net are two kinds of fixation devices, use inconvenience.
Summary of the invention:
The present invention is that the structure to above-mentioned the third inner fixer makes improvements, and makes fusion device and relief groove size coupling, to increase fixed degree, need not prune in operation.
The present invention includes: steel plate and titanium net, it is characterized in that: steel plate is by last, bottom plate is formed, the titanium net is by last, following titanium net is formed, the upper end of upper mounted plate and last titanium net fuses and is square tube type, the upper end of bottom plate and following titanium net fuses and is square tube type, bottom plate can insert in the square hole that is made of upper mounted plate and last titanium net with following titanium net, on, the positive end face of following titanium net, all have mesh on rear end face and the bottom face, on the upper surface of upper mounted plate, have the upper mounted plate kidney slot, have screwed hole and bottom plate kidney slot in the upper surface of bottom plate, in the upper mounted plate kidney slot of upper mounted plate, be furnished with set bolt and packing ring, set bolt is fastened in the screwed hole of bottom plate, make upper mounted plate, last titanium net and bottom plate, following titanium net fuses, on the degree of tightness set bolt scalable, the height that following titanium net struts, on upper mounted plate and bottom plate, respectively have two inclined holes, to go up to admit hold-down screw, bottom plate is fixed in hypocentrum, and the ultimate contact surface of last titanium net and top vertebral body is skewed.
For increasing mutual engagement force between the upper and lower fixing plate, on the contact surface between upper mounted plate and the bottom plate, have sawtooth.
For in operation, better holding the screw of dilator, on two top end faces of upper and lower fixing plate, have semicircle orifice.
For preventing to be fixed on the loosening of screw in the hypocentrum, respectively set up a lock-screw on two inclined hole limits of upper mounted plate and bottom plate, the cylindrical of lock-screw and the cylindrical of screw are tangent.
The present invention is owing to adopt said structure, on the one hand fixing head and titanium net are fused, increased the strong degree of fusion device, on the other hand whole fusion device is divided into two parts up and down, and adopts the structure of intussusception to be integrated, make fusion device make corresponding inclined plane shape by the oblique angle of soleplate under the body of cervical vertebra, when operation is implanted, its fit is compressed, strut again after waiting to insert the Cervical vertebrae pressure-reducing groove, and be fixed on the hypocentrum, insert the deficiency that difficulty causes because of integral body thereby solved original fusion device.
Provide embodiments of the invention and accompanying drawing below, and be described further:
Description of drawings:
Fig. 1, be main cut-away view of the present invention;
Fig. 2, for the diagrammatic sketch of overlooking of the present invention;
Fig. 3, left diagrammatic sketch of the present invention;
Fig. 4, the partial cutaway diagrammatic sketch of looking up of the present invention.
The specific embodiment:
By shown in Figure 1, steel plate is made up of upper and lower fixing plate 1,2, and the titanium net is made up of upper and lower titanium net 3,4.Upper mounted plate 1 fuses with the upper end of last titanium net 3, and bottom plate 2 fuses with the upper end of following titanium net 4.All have mesh 5 on the positive end face of upper and lower titanium net 3,4, rear end face and the bottom face (see figure 4).On upper mounted plate 1, have upper mounted plate kidney slot 6, on bottom plate 2, have screwed hole 7 and bottom plate kidney slot 8, in upper mounted plate kidney slot 6, be furnished with set bolt 9 and packing ring 10, set bolt 9 is fastened in the screwed hole 7, upper mounted plate 1, last titanium net 3 are fused with bottom plate, following titanium net, unclamp the height that the upper and lower titanium net 3,4 of bolt scalable struts.Respectively have two inclined holes on upper mounted plate 1 and bottom plate 2, hold-down screw 11 is fixed in hypocentrum with upper and lower fixing plate 1,2 to admit fixedly, and last titanium net 3 is skewed with the contact surface 12 of top terminal plate of vertebral body.On the contact surface between upper mounted plate 1 and the bottom plate 2, have sawtooth 16, to increase mutual engagement force between upper mounted plate 1 and the bottom plate 2.
By shown in Figure 2, on the upper surface of upper mounted plate 1, have upper mounted plate kidney slot 6, have screwed hole 7 (see figure 1)s and bottom plate kidney slot 8 in the upper surface of bottom plate 2.Be furnished with set bolt 9 and packing ring 10 (see figure 1)s in the upper mounted plate kidney slot 6 of upper mounted plate 1, respectively have two inclined holes on upper mounted plate 1 and bottom plate 2, fixedly hold-down screw 11 is fixed in hypocentrum by inclined hole.For in operation, better holding the supporting rod of dilator, on two top end faces of upper and lower fixing plate 1,2, have semicircle orifice 14,15.For preventing to be fixed in the hypocentrum the loosening of fixing hold-down screw 11, between two inclined holes of upper mounted plate 1 and bottom plate 2, respectively set up a locking screw 13 nails, the cylindrical of the lock-screw 13 and fixedly cylindrical of hold-down screw 11 is tangent.
By shown in Figure 3, the upper end of upper mounted plate 1 and last titanium net 3 fuses and is square tube type, and the upper end of bottom plate and following titanium net 4 fuses and is square tube type, and bottom plate can insert in the square hole that is made of upper mounted plate 1 and last titanium net 3 with following titanium net 4.
Optimal parameter of the present invention is as follows:
The length of upper mounted plate 1 is 16--20mm, and width is 16--18mm, and thickness is 4mm; The length of bottom plate 2 is 14--16mm, and width is 14--16mm, and thickness is 4mm; The diameter of hold-down screw 11 is 4mm, length direction outwards and width inwardly respectively tilt 10 to spend; The diameter of lock-screw 13 is 4mm; The length of upper mounted plate kidney slot 6 is 10-14mm, and width is 6mm; The length of kidney slot 8 is 6--10mmm, and width is 4mm; The length of last titanium net 3 is 12--16mm, and width is 12--14mm, highly is 12--15mm, and wall thickness is 2mm, contact surface 12 inclinations 8 degree, and perisporium mesh 5 numbers are 12--18; The length of following titanium net 4 is 10--12mm, and width is 9--11mm, highly is 10--12mm, and wall thickness is 2mm, and perisporium mesh 5 numbers are 12.
The present invention in use, operating procedure excision cervical vertebral body is implemented decompression at first routinely, and selects the steel plate fusion device of suitable types according to the vertebral body pressure relief ranges, the vertebral body of excision is cut into broken bone piece is packed in the upper and lower fixing plate kidney slot 6,8.Under the situation of not removing dilator, this fusion device is embedded in the relief groove, again with this device up and down two ones retract, the height that struts and relief groove are complementary after, tighten set bolt 9, be screwed into hold-down screw 11 one by one then, lock-screw 13 gets final product.The bone-graft fusion fixing operation became simple and easy to do after the present invention can make anterior cervical decompression, adapted to the physiological status of vertebral body, improved the operation quality, was applicable to that the multi-segmental converged fixed behind the vertebral resection is performed the operation.
Claims (3)
1, a kind of equipment for fusing steel sheet before neck, it comprises: steel plate and titanium net, it is characterized in that: steel plate is by last, bottom plate (1), (2) form, the titanium net is by last, following titanium net (3), (4) form, the upper end of upper mounted plate (1) and last titanium net (3) fuses and is square tube type, the upper end of bottom plate (2) and following titanium net (4) fuses and is square tube type, bottom plate (2) can insert in the square hole that is made of upper mounted plate (1) and last titanium net (3) with following titanium net (4), on, following titanium net (3), (4) positive end face, all have mesh (5) on rear end face and the bottom face, on the upper surface of upper mounted plate (1), have upper mounted plate kidney slot (6), have screwed hole (7) and bottom plate kidney slot (8) in the upper surface of bottom plate (2), in the upper mounted plate kidney slot (6) of upper mounted plate (1), be furnished with set bolt (9) and packing ring (10), set bolt (9) is fastened in the screwed hole (7) of bottom plate (2), on upper mounted plate (1) and bottom plate (2), respectively have two inclined holes, hold-down screw (11) is fixed in hypocentrum by inclined hole, and last titanium net (3) is skewed with the contact surface (12) of top terminal plate of vertebral body.
2, according to the described a kind of equipment for fusing steel sheet before neck of claim 1, it is characterized in that: on the contact surface between upper mounted plate (1) and the bottom plate (2), have sawtooth (16), on two top end faces of upper and lower fixing plate (1), (2), have semicircle orifice (14), (15), between two inclined holes of upper mounted plate (1) and bottom plate (2) lock-screw (13) is arranged respectively, the cylindrical of the cylindrical of lock-screw (13) and hold-down screw (11) is tangent.
3, according to claim 1 or 2 described a kind of equipment for fusing steel sheet before neck, it is characterized in that: the length of upper mounted plate (1) is 16--20mm, and width is 16--18mm, and thickness is 4mm; The length of bottom plate (2) is 14--16mm, and width is 14--16mm, and thickness is 4mm; The diameter of hold-down screw (11) is 4mm, length direction outwards and width inwardly respectively tilt 10 to spend; The diameter of lock-screw (13) is 4mm; The length of upper mounted plate kidney slot (6) is 10-14mm, and width is 6mm; The length of bottom plate kidney slot (8) is 6--10mmm, and width is 4mm; The length of last titanium net (3) is 12--16mm, and width is 12--14mm, highly is 12--15mm, and wall thickness is 2mm, contact surface (12) inclination 8 degree, and perisporium mesh (5) number is 12--18; The length of following titanium net (4) is 10--12mm, and width is 9--11mm, highly is 10--12mm, and wall thickness is 2mm, and perisporium mesh (5) number is 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021112991A CN1176635C (en) | 2002-04-09 | 2002-04-09 | An anterior cervical plate fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021112991A CN1176635C (en) | 2002-04-09 | 2002-04-09 | An anterior cervical plate fusion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1372869A CN1372869A (en) | 2002-10-09 |
| CN1176635C true CN1176635C (en) | 2004-11-24 |
Family
ID=4741492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021112991A Expired - Fee Related CN1176635C (en) | 2002-04-09 | 2002-04-09 | An anterior cervical plate fusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1176635C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100344266C (en) * | 2004-03-01 | 2007-10-24 | 王岩 | Vetebrae anterior biological osteogenesis-inducing type internal fixing device |
| CN101972179B (en) * | 2010-10-26 | 2012-09-05 | 申勇 | Adjustable cervical interbody fusion cage |
| KR101756626B1 (en) | 2010-11-15 | 2017-07-10 | 진테스 게엠베하 | Graft collection and containment system for bone defects |
| CN104207864A (en) * | 2013-05-29 | 2014-12-17 | 天津市威曼生物材料有限公司 | Dynamic stable mesh cage |
| USD779065S1 (en) | 2014-10-08 | 2017-02-14 | Nuvasive, Inc. | Anterior cervical bone plate |
| CN105455926B (en) * | 2015-12-23 | 2018-01-09 | 马向阳 | Fusion device between a kind of vertebral plate |
| CN105662661B (en) * | 2016-02-26 | 2018-02-13 | 邹德威 | Implants, Intervertebral disc fusion device and artificial intervertebral disk for spinal decompression |
| CN106510905A (en) * | 2016-11-23 | 2017-03-22 | 大博医疗科技股份有限公司 | Stable and adjustable artificial vertebral body |
-
2002
- 2002-04-09 CN CNB021112991A patent/CN1176635C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1372869A (en) | 2002-10-09 |
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Granted publication date: 20041124 Termination date: 20100409 |