CN206080670U - Pedicle of vertebral arch fixer and fixing system - Google Patents
Pedicle of vertebral arch fixer and fixing system Download PDFInfo
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- CN206080670U CN206080670U CN201620346263.2U CN201620346263U CN206080670U CN 206080670 U CN206080670 U CN 206080670U CN 201620346263 U CN201620346263 U CN 201620346263U CN 206080670 U CN206080670 U CN 206080670U
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- nail
- hold
- down bars
- pedicle
- fixation system
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Abstract
The utility model discloses a pedicle of vertebral arch fixer, include: staple and fastener, wherein the nail seat of staple on the nail is personally experienced sth. Part of the body and is located the nail body, be equipped with two at least nail grooves on the nail seat, two at least nail grooves are used for holding respectively a hold -down bars, and the nail seat further is fixed in the nail inslot that corresponds with the fastener cooperation with the hold -down bars. The utility model discloses still disclose a pedicle of vertebral arch fixing system. In this way, the utility model discloses need not the position that whole incisions were once performed the operation when carrying out the secondary operation, only need to place new hold -down bars in at least one vacant nail groove, realize the extension of hold -down bars for secondary operation wound is little, and it is few to bleed, and operation time is short, and the clinical practice is costly.
Description
Technical field
The utility model is related to medical Instrument field, more particularly to a kind of Pedicle fixation system and fixed system.
Background technology
With industry, the development of traffic and the problem of an aging population, spinal trauma and illness are in ascendant trend year by year.Mesh
Before, these products such as " Thoracolumbar disk follow closely rod fixed system ", " posterior cervical vertebra canal fixing system " of market sale are by patient's vertebral arch
Root pedicle screw, follows closely groove the inside and puts rod, is connected with rod between the nail of longitudinal direction, is locked with plug screw, is so effectively formed propping up for backbone
Support structure.
But some patientss of internal fixation of spine operation are after operation a period of time, adjacent interverbebral disc of fixed stage is sent out
Raw regression, needs to carry out second operation.The screw only one of which U-type groove of the fixator sold on Vehicles Collected from Market, if secondary
Is performed the operation and fixed position is extended to adjacent phases needs the position once performed the operation all incisions, take out the fixation once performed the operation
Rod, changes a longer hold-down bars, and this mode can cause that the wound of second operation is big, bleeding is more, operating time is long, Huan Zhecheng
The pain received is more.
Utility model content
The utility model can solve the problem that mainly solving the technical problems that provide a kind of Pedicle fixation system and fixed system
The wound of second operation is big, bleeding is more, the problem of operating time length.
To solve above-mentioned technical problem, the technical scheme that the utility model is adopted is：There is provided a kind of pedicle of vertebral arch to fix
Device, including：
Fixed nail and securing member, wherein fixed nail includes rivet nut and the nail seat in rivet nut；
Nail seat is provided with least two nail grooves, and at least two nail grooves are used to accommodate a hold-down bars respectively, nail seat further with
Appended claims are fixed on hold-down bars in corresponding nail groove.
Wherein, nail seat includes two pedestal components being oppositely arranged, and pedestal component includes that respectively what is be connected with rivet nut houses
Portion and the extension being connected with holding part, holding part is provided with nail groove, extension and appended claims.
Wherein, securing member includes locking ring and connector, and locking ring is sheathed on the periphery of two extensions and consolidates for pressure holding
Determine rod, connector is inserted between two extensions, and then strut two extensions, and fixed locking ring.
Wherein, connector is plug screw, and extension is provided with the internal thread being engaged with plug screw.
Wherein, it is that opening is arranged at the top surface of nail seat or the U-type groove of side to follow closely groove, and hold-down bars is arranged at the bottom of U-type groove,
Internal thread is provided with the side wall of U-type groove.
Wherein, securing member is connector, and connector is spirally connected with internal thread and fix hold-down bars with pressure holding.
Wherein, the nail groove of nail seat accommodates diameter difference or diameter identical hold-down bars.
Wherein, the outer surface in rivet nut is provided with the external thread section of at least two different pitch along the length direction of rivet nut.
To solve above-mentioned technical problem, another technical scheme that the utility model is adopted is：There is provided a kind of pedicle of vertebral arch to consolidate
Determine system, including：Multiple Pedicle fixation systems and the hold-down bars being connected between Pedicle fixation system.
Wherein, the other end of two hold-down bars that one end is located in the different nail grooves of same Pedicle fixation system is connected
Pedicle fixation system is different.
The beneficial effects of the utility model are：The situation of prior art is different from, the utility model is by providing a kind of vertebra
Nut fixator, including fixed nail and securing member, wherein fixed nail includes rivet nut and the nail seat in rivet nut；In nail seat
At least two nail grooves are provided with, at least two nail grooves are used to accommodate a hold-down bars respectively, and nail seat further will be solid with appended claims
Determine rod to be fixed in corresponding nail groove.In this way, the utility model is provided with least two nail grooves in nail seat, in nail groove
Hold-down bars can be accommodated, the position of vacant at least one nail groove when once performing the operation need not be by once when second operation is carried out
The position of operation is all cut, and new hold-down bars is placed at least one vacant nail groove, so as to realize original hold-down bars
Extend so that the wound of second operation is little, bleeding is few, operating time is short, and the pain that patient bears is few, clinical value is high.
Description of the drawings
Fig. 1 is the structural representation that a hold-down bars is accommodated in the utility model Pedicle fixation system first embodiment；
Fig. 2 is the structural representation that two hold-down bars are accommodated in the utility model Pedicle fixation system first embodiment；
Fig. 3 is the structural representation that a hold-down bars is accommodated in the utility model Pedicle fixation system second embodiment；
Fig. 4 is the structural representation that two hold-down bars are accommodated in the utility model Pedicle fixation system second embodiment；
Fig. 5 is the structural representation that a hold-down bars is accommodated in the embodiment of the utility model Pedicle fixation system the 3rd；
Fig. 6 is a kind of structural representation of embodiment of the utility model Pedicle fixation system system.
Specific embodiment
To make those skilled in the art be best understood from the technical solution of the utility model, below in conjunction with the accompanying drawings and specifically
Embodiment is elaborated further to a kind of Pedicle fixation system provided by the utility model and fixed system.
Refer to Fig. 1, the utility model Pedicle fixation system first embodiment, including：Fixed nail 100 and securing member
101, wherein fixed nail 100 includes rivet nut 101 and the nail seat 102 in rivet nut；
Nail seat 102 is provided with least two nail grooves 106, and at least two nail grooves 106 are used to accommodate a hold-down bars 113 respectively,
Nail seat 102 further coordinate with securing member 101 by hold-down bars 113 be fixed on it is corresponding nail groove 106 in.
Specifically, Pedicle fixation system belongs to III class implantation instrument in medicine equipment.Pedicle fixation system is implanted into into people
Body, for maintaining the natural physiological bending and supporting construction of pathology backbone.The trouble of Pedicle fixation system is implanted in once performing the operation
Person, after experience a period of time, there is regression in adjacent interverbebral disc of fixed stage, need to carry out second operation.
Traditional Pedicle fixation system is the pedicle screw of only one of which U-type groove, can only between two pedicle screws
A hold-down bars is connected with, if hold-down bars is extended to into adjacent phases in second operation, the portion that will once perform the operation is needed
Position is all cut, and takes out the hold-down bars once performed the operation, and is replaced with a longer hold-down bars, can so cause the wound of second operation
Wound is big, and bleeding is more, and operating time is long, and the pain that patient bears is more.
Therefore, the Pedicle fixation system of present embodiment, is provided with least two nail grooves 106 in nail seat 102, and at least two
Each nail groove 106 of nail groove 106 accommodates a hold-down bars 113, needs the fixed stage to place multiple pedicles of vertebral arch in once operation and consolidates
Determine device, the optional corresponding nail groove 106 through on multiple Pedicle fixation systems of hold-down bars 113 causes multiple Pedicle fixation system connections
Together, hold-down bars 113 is fixed through after nail groove 106 using securing member 101.In general, nail seat 102 is provided with cooperation fastening
The screw thread or retention mechanism of part 101, the optional plug screw of securing member 101, jackscrew or other elements.
Specifically, nail seat 102 includes two pedestal components 102 being oppositely arranged, and pedestal component 102 includes respectively and rivet nut
The holding part 104 of 101 connections and the extension 105 being connected with holding part 104, holding part 104 is provided with nail groove 106, extends
Portion 105 coordinates with securing member 101.
When hold-down bars 113 is put into nail groove 106, need to carry out pressure holding to hold-down bars 113 to fix, in holding part 104
Top is connected with extension 105, extension 105 typically to being easy to carry out pressure holding to hold-down bars 113 fix, securing member 101
Locking ring 110 and connector 109 are chosen as, locking ring 110 and connector 109 are integrated the securing member 101 of linking, wherein, connector 109
For plug screw 109, extension 105 is provided with the internal thread 111 being engaged with plug screw 109, and the outside of extension 105 is provided with and locking
The draw-in groove 112 that ring 110 coordinates, the resilient ring-type element of the optional tool of locking ring 110.
Please also refer to Fig. 1 and Fig. 2, when once performing the operation, after being put into a hold-down bars 113 in nail groove 106, first will locking
Ring 110 is sheathed on the periphery of two extensions 105, and plug screw 109 is inserted between two extensions 105, from the top of extension 105
End down screws, and then struts two extensions 105, locking ring 110 is fallen in draw-in groove 112 and is fixed.
Need in second operation another nail groove 106 be inserted into new hold-down bars 114 when, first by plug screw 109 to
Outer portion is back-outed or is all back-outed so that extension 105 is flared out, and in idle nail groove 106 new fixation can be placed into
Rod 114, placement is again inwards screwed into plug screw 109 after finishing, or is inserted in again between two extensions 105, with locking ring
110 hold-down bars 113/114 of combined locking two, prevent the slip of hold-down bars 113/114, tilt.
In operation, when carrying out thoracolumbar spine fracture using Pedicle fixation system, need to be drilled in people's pedicle anatomy,
Rivet nut is squeezed in hole, the size of the hold between rivet nut and bone affects the recovery capability after operation in patients；Skeleton point
For cortex bone and cancellous bone, more than the bone density of cancellous bone, cortex bone is usually in backbone, cancellous bone one for the bone density of cortex bone
As in epiphysis, the rivet nut for adapting to cortex bone is squeezed in backbone, the rivet nut for adapting to cancellous bone is squeezed in cancellous bone, so can make
The hold obtained between rivet nut and bone is big, and resistance to plucking is high.
Therefore, the rivet nut 101 of Pedicle fixation system is designed for skeleton feature in present embodiment, in rivet nut
Two kinds of different external screw threads 107/108 are set on 101, and the head near nail seat 102 in rivet nut 101 is provided with and adapts to cortex bone
First external screw thread 107, the screw thread of the first external screw thread 107 is narrower, and line number is more, and on the afterbody of rivet nut 101 adaptation cancellous bone is provided with
The second external screw thread 108, the screw thread of the second external screw thread 108 is wider, and line number is less, and rivet nut 101 is squeezed into after pedicle anatomy, resistance to plucking
Property is preferable.
The utility model Pedicle fixation system first embodiment in nail seat 102 by arranging two relative pedestal groups
Part 102, is provided with nail groove 106 in the holding part 104 of pedestal component 102, and the extension 105 of pedestal component 102 is provided with and spiral shell
The internal thread 111 that plug 109 coordinates, using plug screw 109 and locking ring 110 hold-down bars of the fixed placement in nail groove 106 is coordinated
113/114.In this way, the position of the utility model vacant nail groove 106 when once performing the operation, when carrying out secondary hand
The position once performed the operation need not all be cut during art, in vacant nail groove 106 new hold-down bars 114 is placed, be realized former
The prolongation of some hold-down bars 113 so that the wound of second operation is little, and bleeding is few, and operating time is short, the pain that patient bears is few,
Clinical value is high.
It should be noted that prolongation problem of the present embodiment for hold-down bars in second operation, it is not limited to solution
Certainly the problem, arranged side by side in the nail groove of multiple Pedicle fixation systems in order to increase fixed effect in operation in other embodiment
Through multiple hold-down bars, when reserving without idle nail groove, also it is not precluded from outside the utility model solve problem.In addition,
Nail groove minimum number on Pedicle fixation system be two, on do not limit, based on actual demand.
Please also refer to Fig. 3 and Fig. 4, the utility model Pedicle fixation system second embodiment, including：Fixed nail 20 with
And securing member 23/24, wherein fixed nail 20 includes rivet nut 21 and the nail seat 22 in rivet nut；
Nail seat 22 is provided with two nail grooves 25/26, follows closely the U-type groove 25/ that groove 25/26 is arranged at the top surface of nail seat 22 for opening
26, internal thread (not shown) is provided with the side wall of U-type groove 25/26, securing member 23/24 is connector 23/24.
Hold-down bars 27/28 is arranged at the bottom of U-type groove 25/26 and is carried out using the connector 23/24 being engaged with internal thread
Compacting fixation, the optional plug screw of connector 23/24 or jackscrew.
Can be with fixed diameter identical hold-down bars 27/28 in two U-type grooves 25/26, it is also possible to which fixed diameter is different to be consolidated
Determine rod 27/28, the bottom size of U-type groove 25/26 is adapted with the external diameter of hold-down bars 27/28.
When once performing the operation, a hold-down bars 27 is sequentially passed through in the corresponding U-type groove 25 of multiple Pedicle fixation systems, and using slotting
Plug 23 coordinates the internal thread of U-type groove 25 to be fixed hold-down bars 27.
During second operation, without the need for all cutting the position once performed the operation, only need to fix in the pedicle of vertebral arch of two ends stretch-out phase
New hold-down bars 28 is penetrated in the idle U-type groove 26 of device, and coordinates the internal thread of U-type groove 26 to enter hold-down bars 28 using connector 24
Row is fixed, and the other end of new hold-down bars 28 is penetrated in the Pedicle fixation systems different from original hold-down bars 27, to realize original
The prolongation of some hold-down bars 27.
In this way so that second operation wound is little, and bleeding is few, and operating time is short, clinical value is high.
Refer to Fig. 5, the embodiment of the utility model Pedicle fixation system the 3rd, the Pedicle fixation system of present embodiment
It is that the nail groove 31 of present embodiment is arranged at side for opening with the Pedicle fixation system difference of above-mentioned second embodiment
The U-type groove 31 in face, remainder is similar, will not be described here.
Refer to Fig. 6, a kind of embodiment of the utility model nail pedicle fix system, including：Multiple pedicles of vertebral arch are consolidated
Determine device 43/44/45/46 and the hold-down bars 41/42 being connected between Pedicle fixation system.
Specifically, the pedicle of vertebral arch of the optional any embodiment using above-mentioned three kinds of embodiments of Pedicle fixation system is fixed
Device, in the present embodiment, the Pedicle fixation system for above-mentioned first embodiment for adopting.
When once performing the operation, hold-down bars 41 is followed closely into accordingly groove through Pedicle fixation system 43 and Pedicle fixation system 44
It is interior, and fixed using locking ring and plug screw；Hold-down bars 42 is corresponding through Pedicle fixation system 45 and Pedicle fixation system 46
In nail groove, and fixed using locking ring and plug screw；Can also be by tranverse connecting rod 47 and using horizontal between hold-down bars 41 and hold-down bars 42
Fixation is attached to bindiny mechanism 48/49 so that can as needed adjust hold-down bars 41 and hold-down bars 42 when in use, its
The concrete structure here of middle transverse attachment mechanism 48/49 is not discussed.
Once operation is implanted into pedicle of vertebral arch fixed system to support the natural physiological bending of fixed pathology backbone, but in operation
After a period of time, adjacent interverbebral disc of fixed stage may regression after surgery, need to carry out second operation.During second operation, cut
The fixed stage that part is once performed the operation is opened, Pedicle fixation system 44 and Pedicle fixation system 46 is exposed, by Pedicle fixation system
44 and the plug screw of Pedicle fixation system 46 turn on respectively, in another idle nail of Pedicle fixation system 44 and Pedicle fixation system 46
The other end that hold-down bars 50 and hold-down bars 51, hold-down bars 50 and hold-down bars 51 are respectively put in groove connects respectively Pedicle fixation system
52 and Pedicle fixation system 53, using corresponding locking ring and plug screw respectively by hold-down bars 50 and Pedicle fixation system 44 and vertebral arch
Root fixator 52 is fixed, using corresponding locking ring and plug screw respectively by hold-down bars 51 and Pedicle fixation system 46 and vertebral arch
Root fixator 53 is fixed, and optional utilization transverse attachment mechanism and tranverse connecting rod carry out solid between hold-down bars 51 and hold-down bars 53
It is fixed.
In other embodiments, two nail grooves of two of Pedicle fixation system 45 nail grooves and Pedicle fixation system 46 it
Between can side by side pass through two hold-down bars, play a part of multiple fixation.
It is appreciated that the utility model Pedicle fixation system system embodiment, using multiple at least provided with two nail grooves
Pedicle fixation system composition Pedicle fixation system system, make Pedicle fixation system 44 and pedicle of vertebral arch solid respectively in once performing the operation
A nail groove for determining device 46 is idle, in second operation, in Pedicle fixation system 44 and two free time of Pedicle fixation system 46
Hold-down bars 50 and hold-down bars 51 are respectively penetrated in nail groove, to realize the prolongation of original hold-down bars 41 and hold-down bars 42, was performed the operation
Cheng Wuxu all cuts the position once performed the operation so that second operation wound is little, and bleeding is few, and operating time is short, clinical practice
Value is high.
It should be noted that in clinical practice, according to the disease condition of expected implantation person, if pedicle of vertebral arch can be speculated
The adjacent discs of fixator 43 and Pedicle fixation system 45 are less susceptible to regression, optional by Pedicle fixation system 43 and vertebra
Nut fixator 45 is substituted for traditional pedicle screw for being provided only with a U-type groove, and Pedicle fixation system 52 and pedicle of vertebral arch are solid
Determine that device 53 is also optional to be substituted for traditional pedicle screw for being provided only with a U-type groove, this fixed form still falls within this reality
In protection domain with novel vertebral pedicle anchor system.
Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is all
It is the equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or directly or indirectly uses
In other related technical fields, it is included in the same manner in scope of patent protection of the present utility model.
Claims (10)
1. a kind of Pedicle fixation system, it is characterised in that include：
Fixed nail and securing member, wherein the fixed nail includes rivet nut and the nail seat in the rivet nut；
The nail seat is provided with least two nail grooves, and at least two nails groove is used to accommodate a hold-down bars, the nail seat respectively
Further the hold-down bars is fixed in the corresponding nail groove with the appended claims.
2. Pedicle fixation system according to claim 1, it is characterised in that
The nail seat includes two pedestal components being oppositely arranged, and the pedestal component includes respectively the appearance being connected with the rivet nut
The extension put portion and be connected with the holding part, the holding part is provided with the nail groove, and the extension is tight with described
Firmware coordinates.
3. Pedicle fixation system according to claim 2, it is characterised in that
The securing member includes locking ring and connector, and the locking ring is sheathed on the periphery of two extensions and for pressure holding
The hold-down bars, the connector is inserted between two extensions, and then struts described two extensions, and fixed described
Locking ring.
4. Pedicle fixation system according to claim 3, it is characterised in that
The connector is plug screw, and the extension is provided with the internal thread being engaged with the plug screw.
5. Pedicle fixation system according to claim 1, it is characterised in that
The nail groove is the U-type groove of top surface or side that opening is arranged at the nail seat, and the hold-down bars is arranged at the U-type groove
Bottom, be provided with internal thread on the side wall of the U-type groove.
6. Pedicle fixation system according to claim 5, it is characterised in that
The securing member is connector, and the connector is spirally connected with the internal thread and fix the hold-down bars with pressure holding.
7. Pedicle fixation system according to claim 1, it is characterised in that
The nail groove of the nail seat accommodates diameter difference or hold-down bars described in diameter identical.
8. Pedicle fixation system according to claim 1, it is characterised in that
The external thread section of at least two different pitch is provided with along the length direction of the rivet nut in the outer surface of the rivet nut.
9. a kind of pedicle of vertebral arch fixed system, it is characterised in that include：Multiple vertebral arch as described in claim 1-8 any one
Root fixator and the hold-down bars being connected between the Pedicle fixation system.
10. pedicle of vertebral arch fixed system according to claim 9, it is characterised in that one end is solid positioned at the same pedicle of vertebral arch
Determine the Pedicle fixation system that the other ends of two hold-down bars in the different nail grooves of device are connected different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620346263.2U CN206080670U (en) | 2016-04-22 | 2016-04-22 | Pedicle of vertebral arch fixer and fixing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620346263.2U CN206080670U (en) | 2016-04-22 | 2016-04-22 | Pedicle of vertebral arch fixer and fixing system |
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| Publication Number | Publication Date |
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| CN206080670U true CN206080670U (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620346263.2U Active CN206080670U (en) | 2016-04-22 | 2016-04-22 | Pedicle of vertebral arch fixer and fixing system |
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| CN (1) | CN206080670U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105963006A (en) * | 2016-04-22 | 2016-09-28 | 深圳市斯玛仪器有限公司 | Vertebral pedicle fixator and fixing system |
-
2016
- 2016-04-22 CN CN201620346263.2U patent/CN206080670U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105963006A (en) * | 2016-04-22 | 2016-09-28 | 深圳市斯玛仪器有限公司 | Vertebral pedicle fixator and fixing system |
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Address after: Pingshan Shenzhen City Jinniu Road 518019 Guangdong province No. 6 Jinli Technology Industrial Park, No. 4 Building 101, 201, 301 Patentee after: Shenzhen Sima Instrument Co., Ltd. Address before: Four, Shenzhen, Guangdong province Luohu District Taibai Road, No. 3013, building 518019, East Patentee before: Shenzhen Sima Instrument Co., Ltd. |