CN201920882U - Titanium plate system for enlarging and forming canalis vertebralis of cervical vertebra - Google Patents
Titanium plate system for enlarging and forming canalis vertebralis of cervical vertebra Download PDFInfo
- Publication number
- CN201920882U CN201920882U CN 201020696562 CN201020696562U CN201920882U CN 201920882 U CN201920882 U CN 201920882U CN 201020696562 CN201020696562 CN 201020696562 CN 201020696562 U CN201020696562 U CN 201020696562U CN 201920882 U CN201920882 U CN 201920882U
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- CN
- China
- Prior art keywords
- mainboard
- sliding hook
- fixed
- door
- mounting hole
- 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
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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
- A61B17/7071—Implants for expanding or repairing the vertebral arch or wedged between laminae or pedicles; Tools therefor
Abstract
The utility model discloses a titanium plate system for enlarging and forming canalis vertebralis of cervical vertebra. The titanium plate system comprises a main plate, wherein a bending end fixed on a side block of the cervical vertebra extends at the end part of one end of the main plate, a first mounting hole position is formed at the bending end, a second mounting hole position for fixing the main plate at the base part of a spinous process of the cervical vertebra is formed at the other end of the main plate, and a guide groove is formed on the side of the second mounting hole position; the titanium plate system further comprises a sliding hook which can slide on the guide groove and can be fixed to adjust the expanding width of a door opening side, a locating hole is formed on the sliding hook, an anti-slip spike is arranged on the surface where the sliding hook is in contact with the section of a vertebral plate of the door opening side, an inner expanding claw is arranged on the other opposite surface and on the side of the locating hole in a protruding manner, the sliding hook is arranged on the main plate, the inner expanding claw is embedded on the wall of the guide groove; and the titanium plate system further comprises a locating mechanism which is used for fixing the sliding hook on the main plate through the locating hole. An original bolt which is fixed on the vertebral plate of the door opening side is changed to be fixed on the base part of the spinous process; therefore, the fixing intensity is obviously enhanced.
Description
Technical field
This utility model relates to that cervical spondylosis, cervical spinal canal are narrow, the ossification of cervical posterior longitudinal ligament patient carries out the vertebral plate stationary device, and especially a kind of cervical vertebra canalis spinalis that is applicable to enlarges molding titanium plate system.
Background technology
Since Hirabayashi etc. described neck way of escape single open-door canalis spinalis and enlarged laminoplasty the seventies in 20th century, this art formula has been widely used in treating narrow with the developmental character cervical spinal canal, that multi-segmental degenerated cervical spinal canal is narrow cervical spondylotic myelopathy and ossified posterior longitudinal ligament, observe through long-term Clinical Follow-up, it has definite effect aspect function of nervous system improving.The single open-door canalis spinalis enlarges plasty treatment cervical spondylotic myelopathy, by enlarging the cervical spinal canal volume, relies on the bowstring principle, by keeping away yielding behind the spinal cord, thereby reaches the purpose of decompression.The operation of traditional single open-door be by silk thread with the vertebral plate sutured that starts on paraspinal muscle or little joint cyst wall, the contraction of postoperative paraspinal muscle and the activity of cervical region, the vertebral plate that starts is also received to original position, the retraction of canalis spinalis diameter and the phenomenon of closing the door are again occurred having enlarged, have a strong impact on surgical effect.The Itoh of Japan folic hill medical courses in general pharmaceutical university orthopaedics improves itself and common " single open-door " cervical spinal canal expansion laminoplasty that designs of Tsuji, abbreviate her rattan method as, plant bone mass is fixed on the vertebral plate and the Xiao Guan internode of the side of opening the door by steel wire or nylon wire, according to following up a case by regular visits to, can reduce effectively that vertebral plate sinks, the canalis spinalis diameter obviously dwindles, cicatrization in the phenomenon of closing the door again and the canalis spinalis.Propositions such as Shaffrey CI are with minitype titanium plate (adding bone-graft fusion) the fixed form side vertebral plate that fixedly opens the door: minitype titanium plate one end is fixed on cervical lateral mass, the other end is fixed on the vertebral plate of single open-door side, the side of opening the door struts with of the same race or xenogenesis bone piece bone grafting, and plant bone mass is screwed on the titanium plate.On the one hand, if fixedly the screw loosening of plant bone mass or plant bone mass can not with vertebral plate and lateral mass is ossified merge, plant bone mass has and falls into the possibility that canalis spinalis causes spinal cord injury; On the other hand, because people's cervical vertebra vertebral plate is thinner, the minitype titanium plate is screwed on vertebral plate, fixedly strength is less, can not form strong internal fixation.Wang JM etc. adopt " anchor titration " technique for fixing, promptly on the lateral mass of door-hinge one side, implant titanium matter cancellous bone screw, root by cordonnet being tied up to screw is vertebral plate fixedly, operation safety is convenient, do not increase operating time and amount of bleeding, management after operation is simple, help reducing postoperative Wry Neck, pain phenomenon, but increase along with the postoperative time, the risk that has silk thread fracture, vertebral plate to fall after rise, in addition, this kind is non-rigid fixing, if door-hinge side vertebral plate can not merge, can't prevent effectively that door-hinge side vertebral plate from sinking.Andrew E.Park, John G.Heller design a kind of special-shaped titanium plate that single open-door fixedly struts that is used for: an end is screwed at lateral mass, the other end struts the side vertebral plate that opens the door with fixed baffle plate hook, and side vertebral plate dorsal part is fixed on the titanium plate on the vertebral plate with screw opening the door.On the one hand, during the single open-door operation, the door opening width of the side of opening the door vertebral plate has individual difference, but fixed baffle plate can not satisfy this diversity, can not regulate the width that struts of the side vertebral plate that opens the door at any time according to individual need; On the other hand, also because people's cervical vertebra vertebral plate is thinner, the minitype titanium plate is screwed on vertebral plate, fixedly strength is less, can not form strong internal fixation.Liu B etc. and Kihara S etc. implant coral hydroxyapatite in the side of opening the door, Hosono N etc. place ceramic device, repair the side canalis spinalis that opens the door though the inventor considers, at once stability after being difficult to obtain to perform the operation has generation to close the door again and causes the possibility of compression of spinal cord.
The utility model content
The purpose of this utility model is at C
2-7Anatomical structure, a kind of good efficacy that keeps traditional operation is provided, and avoid postoperative to open the door again shortcoming that the side vertebral plate " closes the door " again guarantees the effectiveness that opens the door, fixed and flexible is easy, and the novel cervical vertebra canalis spinalis with good potential applicability in clinical practice enlarges shaping titanium plate system.
For realizing above purpose, this utility model has been taked following technical scheme: the cervical vertebra canalis spinalis enlarges molding titanium plate system, include mainboard, one end end of mainboard is extended with the bending end that is fixed on the cervical lateral mass, on this bending end, offer first mounting hole site, having second mounting hole site that mainboard is fixed on the cervical spine basilar part on the mainboard other end, along on the described mainboard, the side of second mounting hole site is provided with gathering sill, also including and on described gathering sill, to slide and can fix with the open the door sliding hook that struts width of side of adjusting, described sliding hook is provided with locating hole, on a surface that contacts of sliding hook and the side vertebral plate section that opens the door, be provided with anti-skidding spine, on another relative surface, the side of locating hole protrudes and is provided with interior support claw, described sliding hook is arranged on the mainboard, and interior support claw is embedded on the gathering sill cell wall; Also include by locating hole sliding hook is fixed on detent mechanism on the mainboard.
It is moulding that mainboard can carry out pre-bending according to the concrete shape needs of cervical lateral mass, vertebral plate and spinous process; First mounting hole site is screwed on cervical lateral mass, second mounting hole site is fixed in the cervical spine basilar part according to the length needs with one piece of screw, have the gathering sill that is used for adjusting the sliding hook sliding position in the middle of the mainboard, be used for being screwed between mainboard and the sliding hook according to the operation actual needs.
Described locating hole is the screw of tool female thread, and described detent mechanism is the screw that is complementary with screw.
This utility model compared with prior art has following advantage:
(1) screw that will in the past be fixed on the side vertebral plate that opens the door is fixed to the spinous process basilar part, has obviously increased constant intensity;
(2) pass through movably sliding hook device, can be according to the cervical vertebra individual difference and the desired width flexible door opening width that struts of performing the operation;
(3) unique anti-skidding spine designs, and obviously increases the frictional force of contact surface, strengthens stability maintenance;
(4) with the titanium plate side vertebral plate that fixedly opens the door, played the effect of repairing the side canalis spinalis that opens the door to a certain extent, reduce epidural scarring and form.
Description of drawings
Fig. 1 is the combined integrated sketch map of this utility model device ();
Fig. 2 is the combined integrated sketch map of this utility model device (two);
Fig. 3 disconnects sketch map for this utility model device;
Fig. 4 is sliding hook perspective view (one);
Fig. 5 is sliding hook perspective view (two);
Fig. 6 is that interior support claw combines sketch map with gathering sill;
Description of reference numerals: 1-mainboard, 11-second mounting hole site, 12-gathering sill, 2-bending end, 21-first mounting hole site, 3-sliding hook, 31-locating hole, support claw in the anti-skidding spine of 32-, 33-, 34-detent mechanism.
The specific embodiment
Below in conjunction with the drawings and specific embodiments content of the present utility model is described in further details.
Embodiment:
See also Fig. 1 to shown in Figure 6, the cervical vertebra canalis spinalis enlarges molding titanium plate system, include mainboard 1, one end end of mainboard 1 is extended with the bending end 2 that is fixed on the cervical lateral mass, on this bending end 2, offer first mounting hole site 21, also be provided with several anti-skidding spines on bending end 2 surfaces of first mounting hole site, 21 sides, on mainboard 1 other end, have mainboard 1 is fixed in second mounting hole site 11 on the cervical spine basilar part, along on the mainboard 1, the side of second mounting hole site 11 is provided with gathering sill 12, also including and on gathering sill 12, to slide and can fix with the open the door sliding hook that struts width 3 of side of adjusting, sliding hook 3 is provided with locating hole 31, on a surface that contacts of sliding hook 3 and the side vertebral plate section that opens the door, be provided with anti-skidding spine 32, on another relative surface, support claw 33 in the side of locating hole 31 protrudes and is provided with, sliding hook 3 is arranged on the mainboard 1, and interior support claw 33 is embedded on gathering sill 12 cell walls; Also include by locating hole 31 sliding hook 3 is fixed on detent mechanism 34 on the mainboard 1.
Locating hole 31 is the screw of tool female thread, and detent mechanism 34 is the screw that is complementary with screw.
First mounting hole site 21 is one, second mounting hole site 11 be one, two or three (specifically according to the operation practical situation decide).
The nearly center line side of support claw has screw thread in two, and hold-down screw can be screwed into along screw thread, after being screwed into hold-down screw fully, can making two interior support claws strut and block and be pressed on the mainboard gathering sill.Before not tightening hold-down screw, sliding hook can move within the specific limits at mainboard major axis upper edge gathering sill, when sliding hook move to according to the operation needs satisfied strut width after, tighten screw, because mainboard and sliding hook contact surface are matsurface, by the card pressure of the frictional force between both matsurfaces, interior support claw with the pressure that forms after tightening screw, fixedly sliding hook.
This utility model operation principle is as follows: an end of mainboard 1 is fixed on the cervical lateral mass, and the other end is fixed in the side cervical spine basilar part that opens the door; The contact surface of mainboard and sliding hook adopts embedded structure to connect, and sliding hook is embedded on the gathering sill by the interior support claw that stretches out to dorsal part, and sliding hook 3 is used for regulating and the width that struts of the side vertebral plate that fixedly opens the door.It is moulding that mainboard 1 can carry out pre-bending according to the concrete shape needs of cervical lateral mass, vertebral plate and spinous process.Sliding hook can move within the specific limits, can realize the purpose of flexible door opening width according to the open the door width that struts of side of the individual difference of people's cervical vertebra size and the desired single open-door operation of performing the operation.When be adjusted to satisfied strut width after, from locating hole, tighten screw and fix.Offer first mounting hole site 21 (being said single nail nose end) on the bending end 2 and inlay two to eight anti-skidding spines of thorn-like on every side with the face nailing hole that contacts of cervical lateral mass, to increase the frictional force of steel plate and lateral mass contact surface, form firm fixing to assist lateral mass screw; Mainboard 1 is also inlayed two to eight anti-skidding spines with the contact surface of the side vertebral plate section that opens the door, and when spinous process basilar part screw-driving mainboard 1, anti-skidding spine 32 can assist spinous process basilar part screw to block open the door side vertebral plate and spinous process, prevents that it from moving, and fixedly secures with formation.
Above-listed detailed description is at the specifying of this utility model possible embodiments, and this embodiment is not in order to limiting claim of the present utility model, does not allly break away from the equivalence that this utility model does and implements or change, all should be contained in the claim of this case.
Claims (2)
1. the cervical vertebra canalis spinalis enlarges molding titanium plate system, include mainboard (1), one end end of mainboard (1) is extended with the bending end (2) that is fixed on the cervical lateral mass, on this bending end (2), offer first mounting hole site (21), on mainboard (1) other end, have mainboard (1) is fixed in second mounting hole site (11) on the cervical spine basilar part, along on the described mainboard (1), the side of second mounting hole site (11) is provided with gathering sill (12), also including and go up to slide and can fix at described gathering sill (12) with the open the door sliding hook that struts width (3) of side of adjusting, it is characterized in that: described sliding hook (3) is provided with locating hole (31), on a surface that contacts of sliding hook (3) and the side vertebral plate section that opens the door, be provided with anti-skidding spine (32), on another relative surface, the side of locating hole (31) protrudes and is provided with interior support claw (33), described sliding hook (3) is arranged on the mainboard (1), and interior support claw (33) is embedded on gathering sill (12) cell wall; Also include by locating hole (31) sliding hook (3) is fixed on detent mechanism (34) on the mainboard (1).
2. cervical vertebra canalis spinalis as claimed in claim 1 enlarges molding titanium plate system, and it is characterized in that: described locating hole (31) is the screw of tool female thread, and described detent mechanism (34) is the screw that is complementary with screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020696562 CN201920882U (en) | 2010-12-31 | 2010-12-31 | Titanium plate system for enlarging and forming canalis vertebralis of cervical vertebra |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020696562 CN201920882U (en) | 2010-12-31 | 2010-12-31 | Titanium plate system for enlarging and forming canalis vertebralis of cervical vertebra |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201920882U true CN201920882U (en) | 2011-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020696562 Expired - Fee Related CN201920882U (en) | 2010-12-31 | 2010-12-31 | Titanium plate system for enlarging and forming canalis vertebralis of cervical vertebra |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201920882U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105266877A (en) * | 2015-11-26 | 2016-01-27 | 广州聚生生物科技有限公司 | Spinal column vertebral plate open-door fixing system |
| CN105455926A (en) * | 2015-12-23 | 2016-04-06 | 马向阳 | Vertebral plate interbody fusion cage |
| CN116869636A (en) * | 2023-05-25 | 2023-10-13 | 联科医疗器材(重庆)有限公司 | Adjustable vertebral plate fixing plate |
-
2010
- 2010-12-31 CN CN 201020696562 patent/CN201920882U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105266877A (en) * | 2015-11-26 | 2016-01-27 | 广州聚生生物科技有限公司 | Spinal column vertebral plate open-door fixing system |
| CN105455926A (en) * | 2015-12-23 | 2016-04-06 | 马向阳 | Vertebral plate interbody fusion cage |
| CN105455926B (en) * | 2015-12-23 | 2018-01-09 | 马向阳 | Fusion device between a kind of vertebral plate |
| CN116869636A (en) * | 2023-05-25 | 2023-10-13 | 联科医疗器材(重庆)有限公司 | Adjustable vertebral plate fixing plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20121231 |