CN204618375U - A kind of fracture-dislocation of cervical spine front road reduction fixation system - Google Patents
A kind of fracture-dislocation of cervical spine front road reduction fixation system Download PDFInfo
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- CN204618375U CN204618375U CN201520107856.9U CN201520107856U CN204618375U CN 204618375 U CN204618375 U CN 204618375U CN 201520107856 U CN201520107856 U CN 201520107856U CN 204618375 U CN204618375 U CN 204618375U
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- vertebral body
- column
- dislocation
- body nail
- horizontal rack
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Abstract
A kind of fracture-dislocation of cervical spine front road reduction fixation system, comprise positor and supporting fixation steel plate, described positor comprises column, fixing vertebral body nail, movable vertebral body nail, fixing vertebral body nail is fixedly mounted on column by holder, movable vertebral body nail is arranged on column by sliding seat, and movable vertebral body nail relatively can be fixed vertebral body nail and move up and down, also can left and right movement, can also around sliding seat rotational angle, fixation steel plate is arranged on outside positor.This utility model is the upright position of adjustable vertebral body nail on column and the horizontal level of relative column not only, movable vertebral body nail can also be regulated relative to the angle of column, thus can complete the reset of lower cervical spine instability by anterior cervical vertebrae and fix, be specially adapted to complicated articular process strand lock vertebra dislocation patient, replacement and fixation is safe and reliable, can reduce the operation easier of operation simultaneously.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, particularly relates to a kind of fracture-dislocation of cervical spine front road reduction fixation system.
Background technology
Along with socioeconomic development, the change of people life style, the incidence rate of the acute injuries such as traffic accident wound, high pendant wound, athletic injury constantly rises.Due to cervical spinal anatomy, cervical spinal trauma is one the most dangerous in various wound, and the sequela such as mortality rate is higher, high paraplegia are more.Wherein, as the common type in cervical spine injury, there is the possibility that compressing spinal nerves causes high paraplegia even dead in fracture-dislocation of cervical spine, needs to be undertaken resetting, fixing by operation more.
Human cervical spine is made up of 7 vertebras, and wherein the form of 3-7 vertebra is more consistent, therefore often the 3-7 vertebra of cervical vertebra is called Cervical vertebra.The each cervical vertebra of Cervical vertebra is made up of the vertebral arch two parts at vertebral body and rear.The column of vertebral body ovalize, what be connected with vertebral body is vertebral arch, and the two forms vertebral foramen jointly.All vertebral foramens are connected and just constitute canalis spinalis, wherein hold cervical spinal.The vertebroarterial foramen of vertebral artery traveling in vertebral arch, enters intracranial eventually through Foramen magnum, and the blood participating in brain rear portion supplies.Though cervical vertebra vertebra volume in full spinal column is minimum, the sections that motility is maximum, the highest, the relative heavy burden of motion frequency is larger.
Observe from normotopia, each vertebra of Cervical vertebra is symmetrical, and proper alignment is connected by intervertebral disc, uncovertebral joint between each vertebral body.Observe from the side, each vertebral alignment of Cervical vertebra is even, and sequence is neat, is connected between each vertebra by ligament between intervertebral disc, zygapophysial joints, supraspinatus etc.Wherein, zygapophysial joints is made up of the inferior articular process of upper vertebra and the superior articular process in upper joint, and the former is that imbricate is covered on the latter, as shown in Figure 1, 2.
When lower cervical spine instability, the relation between each vertebra changes, and the neat row of sequence is destroyed, and particularly zygapophysial joints is destroyed.Along with the displacement of vertebra, the soft tissue of intervertebral disc around, joint capsule, ligament, tendon is also subject to destruction in various degree, as shown in Figure 3.Following situation is often there will be in lower cervical spine instability; not only vertebral body has displacement; the zygapophysial joints at vertebral body rear also can misplace simultaneously: the inferior articular process of upper vertebra is no longer covered on the superior articular process of lower vertebra, i.e. articular process strand lock (as shown in Figure 4).Articular process strand lock can be one-sided, also can be bilateral.
At present the expectation according to dislocation degree, patient needed to the Therapeutic Method of lower cervical spine instability, whether there is many-sided factors such as articular process strand lock and jointly determine.The slight dislocation of cervical vertebra without articular process strand lock, can attempt being resetted by the mode of the expectant treatments such as skull traction.But the reset rate of traction is lower, and the pull-in time may reach the several months, and patient suffering can't bear.The dislocation of operative treatment Cervical vertebra, especially with the dislocation of cervical vertebra of articular process strand lock, is not all exclusively used in the replacement and fixation system of anterior cervical vertebrae both at home and abroad at present, cannot complete the reset of cervical vertebra by anterior approach merely and fix.All adopt Anterior-posterior operation mode to carry out both at home and abroad at present, namely complete dislocation by front road interpyramidally to loosen and reduce pressure, be exposed to the articular process of strand lock by the way of escape, after excision or sled group articular process complete corpus vertebrae replacement, more optionally by the way of escape or front road, cervical vertebra be fixed.Such modus operandi not only wound is very big, requires high to the operation skill of patient; Meanwhile, due to the articular process that the strand of excising rear is locked, the stability of cervical vertebra can, by impact to a certain extent, have dislocation to increase the weight of, the risk of Spinal Cord in the process stirring patient's row anterior approach.
Utility model content
This utility model aims to provide a kind of fracture-dislocation of cervical spine front road reduction fixation system, the reset of Cervical vertebra dislocation can be completed by anterior cervical vertebrae and fix, particularly for the joint strand lock vertebra dislocation patient of complexity, replacement and fixation is safe and reliable, also can reduce the operation easier of operation simultaneously.
A kind of fracture-dislocation of cervical spine front road reduction fixation system, comprises positor and supporting fixation steel plate, and described positor comprises column, fixing vertebral body nail, movable vertebral body nail; The side of described column has tooth bar; Described fixing cone nail is vertically fixedly mounted on column by holder; Described movable vertebral body nail is arranged on column by sliding seat; Described sliding seat has vertical adjusting gear engage with the tooth bar on column, vertical adjustment knob is connected with vertical adjusting gear; Described sliding seat is provided with horizontal rack seat, horizontal rack is arranged in horizontal rack seat actively, sliding seat is provided with horizontal adjustment gear to engage with horizontal rack, movable vertebral body nail is arranged in horizontal rack, horizontal adjustment knob is connected with horizontal adjustment gear, described horizontal rack seat is arranged in sliding seat by rotating shaft, and horizontal rack seat can rotate by axis around the shaft; Described sliding seat is provided with angular adjustment gear, described angular adjustment gear engages with the gear be fixedly mounted on horizontal rack seat or gear ring, and angular adjustment knob is connected with angular adjustment gear; Described fixation steel plate is arranged on outside positor, and fixation steel plate is rectangular, and there is screw hole corner, and respectively there is a breach upper and lower edge center, passes through for fixing vertebral body nail and movable vertebral body nail.
Further, described sliding seat is provided with perpendicular positioning claw, the pawl head of perpendicular positioning claw can snap in the teeth groove of column tooth bar.The position of sliding seat on column can be fixed by perpendicular positioning claw.
Further, described horizontal rack seat is provided with horizontal location claw, the pawl head of horizontal location claw can snap in the teeth groove of horizontal rack.Can the position of fixing horizontal tooth bar on horizontal rack seat by horizontal location claw.
Further, described horizontal rack seat is provided with alignment pin, and sliding seat has pin-and-hole.By alignment pin is inserted pin-and-hole, the rotational angle of fixing horizontal tooth bar seat relative motion seat.
Further, described horizontal rack longitudinally has through hole, described movable vertebral body nail, through through hole, is fixed in horizontal rack by the nut of afterbody.
Further, described fixation steel plate part hollow out, is beneficial to the position observing plant bone mass or titanium net.
Further, described fixation steel plate is titanium alloy plate, and respectively there is a breach upper and lower edge center.
This utility model is the upright position of adjustable vertebral body nail on column and the horizontal level of relative column not only, movable vertebral body nail can also be regulated relative to the angle of column, thus can complete the reset of Cervical vertebra dislocation by anterior cervical vertebrae and fix, be specially adapted to complicated joint strand lock vertebra dislocation patient, replacement and fixation is safe and reliable, can reduce the operation easier of operation simultaneously.
Accompanying drawing explanation
Fig. 1 is the front schematic view of normal Cervical vertebra.
Fig. 2 is the side schematic view of normal Cervical vertebra.
Fig. 3 is Cervical vertebra luxatio simplex schematic diagram.
Fig. 4 is Cervical vertebra articular process strand lock schematic diagram.
Fig. 5 is this utility model structural representation.
Fig. 6 is for looking schematic diagram in the left side of structure shown in Fig. 5.
Fig. 7 is utility model positor structural representation.
Fig. 8 is this utility model horizontal adjustment gear and horizontal rack part-structure schematic diagram.
Fig. 9 is that this utility model uses schematic diagram.
In figure: 1-fixes vertebral body nail, 2-column, 3-angular adjustment gear, 4-gear or gear ring, 5-horizontal rack, the movable vertebral body nail of 6-, 7-horizontal adjustment gear, 8-sliding seat, 9-fixation steel plate, 10-holder, 11-angular adjustment knob, 12-horizontal rack seat, 13-horizontal adjustment knob, 14-vertical adjusting gear, 15-vertical adjustment knob, 16-perpendicular positioning claw, 17-horizontal location claw, 18-rotating shaft, 19-hollow out.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, this utility model is described in further detail.
As viewed in figures 5-8, a kind of fracture-dislocation of cervical spine front road of this utility model reduction fixation system, comprises positor and supporting fixation steel plate 9, and described positor comprises column 2, fixing vertebral body nail 1, movable vertebral body nail 6; The side of described column 2 has tooth bar; Described fixing cone nail 1 is vertically fixedly mounted on column 2 by holder 10; Described movable vertebral body nail 6 is arranged on column 2 by sliding seat 8; Described sliding seat 8 has vertical adjusting gear 14 to engage with the tooth bar on column 2, and vertical adjustment knob 15 is connected with vertical adjusting gear 14; Described sliding seat 8 is provided with horizontal rack seat 12, horizontal rack 5 is arranged in horizontal rack seat 12 actively, sliding seat 8 is provided with horizontal adjustment gear 7 to engage with horizontal rack 5, movable vertebral body nail 6 is arranged in horizontal rack 5, and horizontal adjustment knob 13 is connected with horizontal adjustment gear 7; Described horizontal rack seat 12 is arranged in sliding seat 8 by rotating shaft 18, horizontal rack seat 12 can around the shaft 18 axis rotate; Described sliding seat 8 is provided with angular adjustment gear 3, and described angular adjustment gear 3 engages with the gear be fixedly mounted on horizontal rack seat 12 or gear ring 4, and angular adjustment knob 11 is connected with angular adjustment gear 3; Described fixation steel plate 9 is arranged on outside positor, and fixation steel plate 9 is rectangular, and there is screw hole corner, and respectively there is a breach upper and lower edge center, passes through for fixing vertebral body nail 1 and movable vertebral body nail 6.
By angular adjustment knob 11, sliding seat 8 rotational angle of adjustable vertebral body nail 6 on column 2.
By vertical adjustment knob 15, vertical adjusting gear 14 can be driven to move up and down along the tooth bar on column 2, thus the position of adjustment activity vertebral body nail 6 on vertically.
By horizontal adjustment knob 13, horizontal adjustment gear 7 can be made to rotate, drive horizontal rack 5 to move in horizontal rack seat 12 middle left and right, thus adjustment activity vertebral body nail 6 position in the horizontal direction.
Further, described sliding seat 8 is provided with perpendicular positioning claw 16, the pawl head of perpendicular positioning claw 16 can snap in the teeth groove of column 2 tooth bar.The position of sliding seat 8 on column 2 can be fixed by perpendicular positioning claw 16.
Further, described horizontal rack seat 12 is provided with horizontal location claw 17, the pawl head of horizontal location claw 17 can snap in the teeth groove of horizontal rack 5.Can the position of fixing horizontal tooth bar 5 on horizontal rack seat 12 by horizontal location claw 17.
Further, described horizontal rack seat 12 is provided with alignment pin, and sliding seat 8 has pin-and-hole.By alignment pin is inserted pin-and-hole, the rotational angle of fixing horizontal tooth bar seat relative motion seat.
Further, described horizontal rack 5 longitudinally has through hole, described movable vertebral body nail 6, through through hole, is fixed in horizontal rack 5 by the nut of afterbody.
Further, described fixation steel plate 9 part hollow out, is beneficial to the position observing plant bone mass or titanium net.
Further, described fixation steel plate 9 is titanium alloy plate, and respectively there is a breach upper and lower edge center.
This utility model to be dislocated patient mainly for Cervical vertebra, particularly complicated articular process strand lock vertebra dislocation patient, during use:
If the front road that patient is Cervical vertebra luxatio simplex is fixed, first the fixing vertebral body of positor is followed closely 1 normal vertebral body, again movable vertebral body nail 6 is inserted dislocation vertebral body, after regulating the distance between sliding seat 8 and holder 10 suitable, respectively fixing vertebral body nail 1 and movable vertebral body nail 6 inserted holder 10 and sliding seat 8 and use the appropriate hold-down screw of nut, horizontal adjustment activity vertebral body nail 6 is with the dislocation vertebral body that resets again, after intervertebral space bone grafting, sliding seat 8 is carried out appropriate Vertical movements with the intervertebral space that pressurizes to fixed leg 10 direction, lay Interal fixation.
If patient is lower cervical spine instability companion articular process strand lock, as shown in Figure 9, the first step, positor is fixed vertebral body and follow closely 1 normal vertebral body, again movable vertebral body nail 6 is inserted the vertebral body of articular process strand lock dislocation, after regulating the distance between sliding seat 8 and holder 10 suitable, respectively fixing vertebral body nail 1 and movable vertebral body nail 6 inserted holder 10 and sliding seat 8 and use the appropriate hold-down screw of nut, as illustrated in fig. 9; Second step, first rotation activity vertebral body nail 6, makes movable vertebral body follow closely 6 and rotates an angle from horizontal level around sliding seat 8, untie the joint of articular process strand lock, as shown in figure 9b; 3rd step, horizontal adjustment activity vertebral body follows closely 6 reset vertebral bodys, as is shown in fig. 9 c; 4th step, carries out appropriate Vertical movements with the intervertebral space that pressurizes by sliding seat 8 to fixed leg 10 direction after intervertebral space bone grafting, as shown in figure 9d; 5th step, lays fixation steel plate, as shown in figure 9e.
This utility model can complete dislocation of cervical vertebra by means of only simple anterior approach and resets and fix, and operation wound is little, easy and simple to handle, safe and reliable, reduces the expense of patient, is with a wide range of applications.
Certainly; this utility model also can have other various embodiments; when not deviating from this utility model spirit and essence thereof; those of ordinary skill in the art can make various corresponding change and distortion according to this utility model, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by this utility model.
Claims (7)
1. a fracture-dislocation of cervical spine front road reduction fixation system, it is characterized in that: comprise positor and supporting fixation steel plate (9), described positor comprises column (2), fixing vertebral body nail (1), movable vertebral body nail (6); The side of described column (2) has tooth bar; Described fixing cone nail (1) is vertically fixedly mounted on column (2) by holder (10); Described movable vertebral body nail (6) is arranged on column (2) by sliding seat (8); Described sliding seat (8) has vertical adjusting gear (14) engage with the tooth bar on column (2), vertical adjustment knob (15) is connected with vertical adjusting gear (14); Described sliding seat (8) is provided with horizontal rack seat (12), horizontal rack (5) is arranged in horizontal rack seat (12) actively, sliding seat (8) is provided with horizontal adjustment gear (7) to engage with horizontal rack (5), movable vertebral body nail (6) is arranged in horizontal rack (5), and horizontal adjustment knob (13) is connected with horizontal adjustment gear (7); Described horizontal rack seat (12) is arranged in sliding seat (8) by rotating shaft (18), horizontal rack seat (12) can around the shaft (18) axis rotate; Described sliding seat (8) is provided with angular adjustment gear (3), described angular adjustment gear (3) is engaged with the gear be fixedly mounted on horizontal rack seat (12) or gear ring (4), and angular adjustment knob (11) is connected with angular adjustment gear (3); Described fixation steel plate (9) is arranged on outside positor, and fixation steel plate (9) is rectangular, and there is screw hole corner, and respectively there is a breach upper and lower edge center, passes through for fixing vertebral body nail (1) and movable vertebral body nail (6).
2. fracture-dislocation of cervical spine according to claim 1 front road reduction fixation system, it is characterized in that: described sliding seat (8) is provided with perpendicular positioning claw (16), the pawl head of perpendicular positioning claw (16) can snap in the teeth groove of column (2) tooth bar.
3. fracture-dislocation of cervical spine according to claim 1 front road reduction fixation system, it is characterized in that: described horizontal rack seat (12) is provided with horizontal location claw (17), and the pawl head of horizontal location claw (17) can snap in the teeth groove of horizontal rack (5).
4. fracture-dislocation of cervical spine according to claim 1 front road reduction fixation system, is characterized in that: described horizontal rack seat (12) is provided with alignment pin, and (8) have pin-and-hole to sliding seat.
5. fracture-dislocation of cervical spine according to claim 1 front road reduction fixation system, it is characterized in that: (5) longitudinally have through hole to described horizontal rack, described movable vertebral body nail (6), through through hole, is fixed in horizontal rack (5) by the nut of afterbody.
6. fracture-dislocation of cervical spine according to claim 1 front road reduction fixation system, is characterized in that: described fixation steel plate (9) part hollow out.
7. fracture-dislocation of cervical spine according to claim 1 front road reduction fixation system, is characterized in that: described fixation steel plate (9) is titanium alloy plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520107856.9U CN204618375U (en) | 2015-02-13 | 2015-02-13 | A kind of fracture-dislocation of cervical spine front road reduction fixation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520107856.9U CN204618375U (en) | 2015-02-13 | 2015-02-13 | A kind of fracture-dislocation of cervical spine front road reduction fixation system |
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| Publication Number | Publication Date |
|---|---|
| CN204618375U true CN204618375U (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520107856.9U Withdrawn - After Issue CN204618375U (en) | 2015-02-13 | 2015-02-13 | A kind of fracture-dislocation of cervical spine front road reduction fixation system |
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| CN (1) | CN204618375U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104644254A (en) * | 2015-02-13 | 2015-05-27 | 四川大学华西医院 | Cervical vertebrae fracture dislocation anterior approach resetting inner fixing system |
-
2015
- 2015-02-13 CN CN201520107856.9U patent/CN204618375U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104644254A (en) * | 2015-02-13 | 2015-05-27 | 四川大学华西医院 | Cervical vertebrae fracture dislocation anterior approach resetting inner fixing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150909 Effective date of abandoning: 20160824 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20150909 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |