CN110495937A - Ring external fixation support and fixed device - Google Patents
Ring external fixation support and fixed device Download PDFInfo
- Publication number
- CN110495937A CN110495937A CN201810479059.1A CN201810479059A CN110495937A CN 110495937 A CN110495937 A CN 110495937A CN 201810479059 A CN201810479059 A CN 201810479059A CN 110495937 A CN110495937 A CN 110495937A
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- fixed
- ring
- guide rod
- external fixation
- fixed ring
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- 238000009434 installation Methods 0.000 claims abstract description 24
- 239000007787 solid Substances 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 2
- 230000008859 change Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000035876 healing Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Classifications
-
- 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
- A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
- A61B17/62—Ring frames, i.e. devices extending around the bones to be positioned
-
- 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
- A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/6425—Devices extending alongside the bones to be positioned specially adapted to be fitted across a bone joint
-
- 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
- A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/6466—Devices extending alongside the bones to be positioned with pin-clamps movable along a solid connecting rod
Abstract
The present invention relates to a kind of ring external fixation supports and fixed device.The ring external fixation support is used to support skeleton, comprising: guide rod and fixed ring；Sliding unit is arranged in the fixed ring and is fixedly connected with the guide rod, and the sliding unit is adjustable in the installation site of the fixed ring radially；And spicule component, it is arranged in the fixed ring.Since sliding unit is adjustable in the installation site of fixed ring radially, the total length that both fixed ring and sliding unit are radially formed in fixed ring can be adjusted, it is postponed when changing simultaneously fixed bit of the sliding unit on guide rod, on the basis of ensuring that entire ring external fixation support structure is simple, the angle between fixed ring and guide rod can be easily adjusted.When being provided with two or more fixed rings on guide rod, the angle between each fixed ring equally generates variation, and the final different support demands met to skeleton enhance the convenience of ring external fixation support operationally to the applicability of application scenarios.
Description
Technical field
The present invention relates to the field of medical instrument technology, more particularly to a kind of ring external fixation support and comprising the annular outside
Support bracket fastened fixed device.
Background technique
Ring external fixation support has a wide range of applications in bone surgery treatment, can help skeleton parking position accuracy and quick
Healing.In general, for traditional ring external fixation support, in order to be applicable in the different support needs to skeleton, two fixed rings
It is connected by guide rod, and palpiform realizes the adjustable construction of angle in the presence of structure is complicated at present at different angles between fixed ring
Defect.
Summary of the invention
Based on this, it is necessary to provide one kind and realize that the adjustable annular of angle is outer between fixed ring on the basis of structure is simple
Fixed bracket.
A kind of ring external fixation support, is used to support skeleton, comprising:
Guide rod and fixed ring；
Sliding unit is arranged in the fixed ring and is fixedly connected with the guide rod, and the sliding unit is described solid
It is adjustable to determine the installation site of ring radially；And
Spicule component is arranged in the fixed ring.
A kind of fixed device, including any of the above-described ring external fixation support.
Ring external fixation support provided by the invention, since sliding unit is adjustable in the installation site of fixed ring radially,
When one timing of distance between two guide rods being connected in two fixed rings, by changing the sliding list in one of fixed ring
Installation site of the member in fixed ring radially, so that it may realize and be arranged between two fixed rings in different angles, ensure entire ring
On the basis of shape exterior fixing rack structure is simple, the angle between each fixed ring can be easily adjusted, it is final to meet to bone
The different support demands of frame, enhance its applicability to various application scenarios.
Detailed description of the invention
The parallel schematic perspective view of fixed ring in the ring external fixation support that Fig. 1 provides for an embodiment；
Fig. 2 be Fig. 1 in wherein one part structural schematic diagram；
Fig. 3 is the partial structural diagram of sliding unit in Fig. 1；
Fig. 4 is the schematic perspective view of connector in Fig. 1；
Fig. 5 is the schematic perspective view of guide rod in Fig. 1；
Fig. 6 is another local structural schematic diagram in Fig. 1；
Fixed ring is in the schematic perspective view of angle in the ring external fixation support that Fig. 7 provides for an embodiment；
Fig. 8 is the schematic perspective view for the fixation device that an embodiment provides.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give better embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose of providing these embodiments is that making to understand more the disclosure
Add thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein "inner", "outside", "left", "right" and
Similar statement for illustrative purposes only, is not meant to be the only embodiment.
Refering to fig. 1, the ring external fixation support 10 that one embodiment of the invention provides includes guide rod 100, fixed ring 200, slides
Moving cell 300 and spicule component 400.Guide rod 100 is mounted in fixed ring 200 by sliding unit 300.Spicule component 400 is pacified
In fixed ring 200.The fixed ring 200 that guide rod 100 concatenates can be two or more.Leading in fixed ring 200 is set
Bar 100, sliding unit 300, spicule component 400 quantity can be two, or it is multiple, can be according to actual use
Demand makes variation.In use, fixed ring 200 is arranged around the skeleton 20 of limbs, and spicule component 400 can be outside limbs
It squeezes into in skeleton 20 and to skeleton 20 and forms supporting role, the skeleton 20 after preventing parking position accuracy generates displacement, it is ensured that skeleton
20 quickly healings.
Simultaneously refering to fig. 1 to Fig. 3, sliding unit 300 includes sliding block 310 and guide part 320, and guide part 320 includes screwing
End cap 321, sliding pin 322 and spring 323.Sliding block 310 can substantially rectangular-shape, one of side-facing depressions of sliding block 310
It is formed with installation gap 311, guide rod 100 is threaded through in the installation gap 311, to realize between guide rod 100 and sliding block 310
It is fixedly connected.Since installation gap 311 being arranged on the surface of sliding block 310, guide rod 100 can be directly outside the surface of sliding block 310
Radial direction along guide rod 100 is caught in installation gap 311.Therefore, during the installation process, sliding block 310 can be in the default of guide rod 100
Installed position and guide rod 100, which are quickly formed, to be connected, and for setting perforation on sliding block 310, it is necessary to can avoid sliding block 310
Guide rod 100 is inserted in from the end of guide rod 100 and is axially slided to installation site along guide rod 100.Conversely, in disassembly process,
Radial direction of the guide rod 100 directly out of installation gap 311 along guide rod 100 is exited to outside sliding block 310, avoids sliding block 310 can only
Guide rod 100 is detached from from the end of guide rod 100.Make entire 10 structure of ring external fixation support simple, in this way convenient for using
Fixation position of the quick adjusting slider 310 on guide rod 100 in journey also improves the convenience of the dismounting of sliding block 310.
Simultaneously refering to Fig. 2 and Fig. 3, it is provided with sliding slot 110 on guide rod 100, sliding slot 110 is axially extending along guide rod 100, sliding
The quantity of slot 110 can be two, and two sliding slots 110 can be symmetrical arranged about the central axis of guide rod 100.The sliding slot 110
Slip cooperating relationship is formed with guide part 320, can be slided by guide part 320 with respect to sliding slot 110, and then suitable with movable slider 310
Benefit slides into the default installation site on guide rod 100.
Specifically, it is provided with threaded hole 312 on sliding block 310, which is connected to installation gap 311, sliding pin 322
It is housed in threaded hole 312, sliding pin 322 and threaded hole 312 form clearance fit relationship, it is ensured that sliding pin 322 can threadingly hole
312 centerline direction reciprocatingly slides.Screwing end cap 321 includes mounting portion 321b, and mounting portion 321b matches with 312 screw thread of threaded hole
It closes, is provided with the first mounting hole 321a on mounting portion 321b, the second mounting hole 322a, the first mounting hole are provided on sliding pin 322
Both 321a and the second mounting hole 322a can be coaxially disposed, i.e. the central axis weight of the central axis and threaded hole 312 of the two
It closes.One end of spring 323 is housed in the first mounting hole 321a and screws end cap 321 and mutually abut, and the other end of spring 323 is received
Appearance mutually abuts in the second mounting hole 322a with sliding pin 322, and therefore, spring 323 is compressed in sliding pin 322 and screws end cap
Between 321, the first mounting hole 321a and the second mounting hole 322a play fine position-limiting action to spring 323, are convenient for 323 bullet of spring
The generation and transmitting of power.
The end of sliding pin 322 in guide part 320 and guide rod 100 abut against and cooperate with the sliding slot 110 on guide rod 100,
When 110 sliding along the chute of sliding pin 322, sliding block 310 is then slided with respect to guide rod 100, adjusts the rotation of mounting portion 321b and threaded hole
Close length, thus it is possible to vary the decrement of spring 323 to change spring 323 to the abutting force of sliding pin 322, and then adjusts sliding pin
Abutting force between 322 ends and guide rod 100.322 one side of sliding pin, which can play, is fixed on sliding block 310 on guide rod 100
On the other hand effect can also be played the role of providing guiding with respect to the sliding of guide rod 100 for sliding block 310.When sliding block 310 is fixed
When on guide rod 100, the screwing length for screwing end cap 321 to increase mounting portion 321b Yu threaded hole 312, bullet can be rotated forward
The decrement of spring 323 increases, and spring 323 increases the abutting force of sliding pin 322, so that between 322 end of sliding pin and guide rod 100
Abutting force and stiction increase, to increase the stability and reliability that sliding block 310 is fixedly connected with guide rod 100.Work as needs
When sliding block 310 being pushed to slide with respect to guide rod 100, it can be reversed rotation and screw end cap 321 to reduce mounting portion 321b and threaded hole
The decrement of 312 screwing length, spring 323 is reduced, and spring 323 reduces the abutting force of sliding pin 322, so that 322 end of sliding pin
Abutting force and stiction between portion and guide rod 100 are reduced, to reduce sliding block 310 with respect to the friction resistance that guide rod 100 slides
Power, smoothly to push sliding block 310 to slide with respect to guide rod 100.
Simultaneously refering to Fig. 2 and Fig. 5, in some embodiments, guide rod 100 is screw rod, is combined with pressurizing nut on screw rod
500, i.e. pressurizing nut 500 is connect with screw flight, and the end face of pressurizing nut 500 can fit with the end face of sliding block 310, rotation
Turning pressurizing nut 500 can drive sliding block 310 to slide with respect to guide rod 100, and then change fixed ring 200 and the guide rod 100
Relative position again may be by pressurizing nut 500 and change for guide rod 100 corresponding with the circumferential above different location of fixed ring 200
Become the relative position of fixed ring 200 and each guide rod 100.What is particularly worth mentioning is that the rotating cycle of control pressurizing nut 500,
Can the opposite guide rod 100 of accurate adjusting slider 310 small micro- slippage.Graduated scale 120 can also be set on screw rod, the scale
Ruler 120 can be with actual measurement sliding block 310 with respect to the occurrence that guide rod 100 slides, and then it is sliding with respect to guide rod 100 to improve sliding block 310
The precision of momentum.It, can be with turn pressurizing nut 500 to change it in guide rod when sliding block 310 is completely fixed on guide rod 100
Pretightning force on 100, and then pressurizing nut 500 can be made to keep different pressure to sliding block 310.
Simultaneously refering to Fig. 2 and Fig. 3, sliding unit 300 further includes locking member 350, for example, locking member 350 is bolt.Sliding block
Another threaded hole is also provided on 310, which is equally connected to installation gap 311, for the spiral shell cooperated with locking member 350
Pit and with the threaded hole 312 that screws the cooperation of end cap 321, the central shaft hole of the two can be mutually perpendicular to, can also be in other folders
Angle setting.Locking member 350 and threaded hole cooperate, and end and the guide rod 100 of locking member 350 abut against, when screwing locking member 350
Afterwards, it is ensured that sufficiently large abutting force and stiction are formed between the end and guide rod 100 of locking member 350, more to consolidate
Ground is fixed on sliding block 310 on guide rod 100, and sliding block 310 is effectively prevent to generate loosening during the work time, it is ensured that annular is outer fixed
Support effect of the bracket 10 to skeleton 20.
Simultaneously refering to Fig. 2 and Fig. 4, sliding unit 300 further includes connector 330 and fastening bolt 340, on connector 330
It is provided with the strip-shaped hole 331a worn for fastening bolt 340, connector 330 may include first connecting portion 331 and the second connection
Portion 332, first connecting portion 331 and the bending connection of second connecting portion 332, in other words, connector 330 is substantially L-shaped.First connection
Portion 331 is fixedly connected with fixed ring 200, and strip-shaped hole 331a is arranged in first connecting portion 331, and strip-shaped hole 331a is along fixed ring
200 radially extend, and strip-shaped hole 331a can be kidney slot, slot or slotted eye etc., and the is provided in fixed ring 200
One fixation hole 211, fastening bolt 340 are threaded through 211 in strip-shaped hole 331a and the first fixation hole, thus by first connecting portion 331
It is mounted in fixed ring 200, second connecting portion 332 modes such as can be connected through a screw thread, be clamped or weld and is fixed on sliding block 310
On.
Simultaneously refering to fig. 1, Fig. 2 and Fig. 6, fixed ring 200 on the whole can be rounded, fixed ring 200 includes first solid
Determine portion 210 and the second fixed part 220, the first fixed part 210 and the second fixed part 220 are multiple, multiple first fixed parts 210
Along being provided at circumferentially spaced for fixed ring 200, the second fixed part 220 is connected between two neighboring first fixed part 210, and first is solid
The radial dimension for determining portion 210 is greater than the radial dimension of the second fixed part 220, i.e. the radial width A of the first fixed part 210 is greater than the
The radial width B of two fixed parts 220.
First fixation hole 211 is arranged on the first fixed part 210, is provided with the second fixation hole on the second fixed part 220
221, the first fixation hole 211 and the second fixation hole 221 are circular hole (the two may be square hole or other shapes etc.), and first is solid
Hole 211 is determined for installing first connecting portion 331, and the second fixation hole 221 is for installing spicule component 400 (according to the actual situation
It needs, the first fixation hole 211 can be used for installation spicule component 400, and the second fixation hole 221 can be used for installation first and connect
Socket part 331).When installing first connecting portion 331, fastening bolt 340 is threaded through in strip-shaped hole 331a and the first solid hole simultaneously, due to
Strip-shaped hole 331a radially has certain length fixed ring 200, thus it is possible to vary fastening bolt 340 is in strip-shaped hole 331a
Installation site, so that installation site of the adjusting connector 330 in fixed ring 200 radially, further changes fixed ring 200
The distance of center and sliding block 310 between 200 radial direction of fixed ring is finally reached and adjusts fixed ring 200 and entire sliding unit 300
The purpose for the total length that the two is radially formed in fixed ring 200.Specifically, when fastening bolt 340 is mounted on strip-shaped hole
When the one end nearest apart from second connecting portion 332 331a, the center of fixed ring 200 and sliding block 310 are between 200 radial direction of fixed ring
Distance it is minimum, both fixed ring 200 and entire sliding unit 300 are minimum in the total length that fixed ring 200 is radially formed.Instead
It, is when fastening bolt 340 is mounted on the one end farthest apart from second connecting portion 332 strip-shaped hole 331a, the center of fixed ring 200
And distance of the sliding block 310 between 200 radial direction of fixed ring is maximum, both fixed ring 200 and entire sliding unit 300 are in fixed ring
The 200 total length maximums radially formed.
In some embodiments, the first fixation hole 211 is arranged on the first fixed part 210 along the circumferential of fixed ring 200
At least two rows of, the second fixation hole 221 is arranged in an only row on the second fixed part 220 along the circumferential of fixed ring 200.Pass through setting
Multiple rows of first fixation hole 211, can further increase fixed ring 200 center and sliding block 310 200 radial direction of fixed ring spacing
From adjustable range, therefore, the total length that both fixed ring 200 and entire sliding unit 300 are radially formed in fixed ring 200
Adjustable range equally increase.In the case where only strip-shaped hole 331a, the length of strip-shaped hole 331a is as above-mentioned " total length "
Adjustable range ranked first fixation hole 211 in fixed ring in most edge two and again by the way that multiple rows of first fixation hole 211 is arranged
The sum of 200 radial distance and the length of strip-shaped hole 331a constitute the adjustable range of " total length ".When fastening bolt 340 is threaded through
It one arranges in the first fixation hole 211 and is threaded through strip-shaped hole 331a distance second simultaneously and connect apart from second connecting portion 332 is nearest
When the farthest one end in portion 332, should " total length " value it is maximum.It is on the contrary then minimum.In other embodiments, the first fixed part 210
With circular first fixation hole 211, circumferential array of first fixation hole 211 along fixed ring 200 are respectively provided on the second fixed part 220
At at least two rows, and the strip-shaped hole 331a in first connecting portion 331 is changed and is set as circular hole, equally can achieve adjusting " total length "
Purpose, at this point, in most edge two ranked first fixation hole 211 fixed ring 200 radial distance constitute " total length " tune
Adjusting range.
Refering to fig. 1 and Fig. 2, the situation parallel and vertical with guide rod 100 fixed ring 200 always in two guide rods 100
Under, two fixed rings 200 are same parallel.When the fastening bolt 340 in the one of fixed ring 200 of change is in strip-shaped hole 331a
When installation site, thus it is possible to vary the fixed ring 200 and the sliding unit 300 being attached thereto radially are formed in the fixed ring 200
Total length, while being slided by sliding block 310 to change installation site of the sliding block 310 on guide rod 100, at this point, refering to Fig. 7,
The fixed ring 200 will be no longer vertical with guide rod 100, which still incites somebody to action perpendicular to the fixed ring 200 of guide rod 100 with another
It is no longer parallel, certain angle is generated between two fixed rings 200.It therefore, only need to be by changing fixed ring 200 and being attached thereto
The installation on guide rod 100 of both sliding units 300 total length and sliding block 310 that are radially formed in the fixed ring 200
Position, it can adjust the angle between two fixed rings 200, such as both can be by parallel state change to there is angle
State.For theoretically, two fixed rings 200 can be made by above-mentioned adjustment mode, and there are any folders between 0 ° to 180 °
Angle.On the basis of ensuring that entire 10 structure of ring external fixation support is simple, it can be improved what angle between fixed ring 200 was adjusted
Convenience meets entire ring external fixation support 10 to 20 difference of skeleton by forming different angles between fixed ring 200
Support need, improve ring external fixation support 10 application range.
Include ball cup 410, rotating ballhead 420, locking pin 440 and fix with Fig. 6, spicule component 400 refering to fig. 1 simultaneously
Needle 430.Ball cup 410 is mounted on the second fixation hole 221 of the second fixed part 220.In other embodiments, it can also install
On the first fixation hole 211 of the first fixed part 210.Rotating ballhead 420 forms spherical pair with ball cup 410 and connect, fixed pin
430 connect with rotating ballhead 420 and are used to squeeze into skeleton 20, and the fixed pin 430 after squeezing into skeleton 20 forms skeleton 20 and supports
Effect prevents skeleton 20 from shifting.Locking pin 440 is arranged on ball cup 410, and locking pin 440 can be fixed by rotating ballhead 420
On ball cup 410, prevent rotating ballhead 420 from rotating relative to ball cup 410.
It is connect since rotating ballhead 420 forms spherical pair with ball cup 410, fixed pin 430 is mounted on rotating ballhead 420
On, therefore, during fixed pin 430 follows rotating ballhead 420 to rotate together, it can be adjusted within the scope of solid space solid
Determine needle angle of the needle 430 with respect to skeleton 20, the range of choice of needle angle is significantly increased, and enhances ring external fixation support 10
Operation ease and applicability to application scenarios.After the needle angle of fixed pin 430 is set up and squeezes into skeleton 20, locking
Rotating ballhead 420 is locked on ball cup 410 by pin 440；When needing to readjust the needle angle of fixed pin 430, release
Locking pin 440 acts on the locking of rotating ballhead 420, and rotation rotating ballhead 420 makes fixed pin 430 be in suitable needle angle
.
Refering to Fig. 8, the present invention also provides a kind of fixed device 30, which connects including first connecting rod 610, second
Bar 620 and two above-mentioned ring external fixation supports 10.One end of first connecting rod 610 and one of ring external fixation support 10
Fixed ring 200 connect, the other end of first connecting rod 610 connect with the fixed ring 200 of another ring external fixation support 10,
For example, one end of first connecting rod 610 is connect with the first fixed part 210 in one of fixed ring 200, first connecting rod 610
The other end is connect with the second fixed part 220 in another fixed ring 200.One end of second connecting rod 620 and one of ring
The guide rod 100 of shape exterior fixing rack 10 connects, and the other end of second connecting rod 620 is led with another ring external fixation support 10
Bar 100 connects.When two skeletons 20 in 30 pairs of fixation device healings of application are supported, one of annular is outer fixed
Bracket 10 is supported a skeleton 20, another ring external fixation support 10 is supported another skeleton 20,
After the connection angle of two skeletons 20 is adjusted in place, then will be solid outside two annulars by first connecting rod 610 and second connecting rod 620
Fixed rack 10 connects.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (18)
1. a kind of ring external fixation support, is used to support skeleton characterized by comprising
Guide rod and fixed ring；
Sliding unit is arranged in the fixed ring and is fixedly connected with the guide rod, and the sliding unit is in the fixed ring
Installation site radially is adjustable；And
Spicule component is arranged in the fixed ring.
2. ring external fixation support according to claim 1, which is characterized in that the sliding unit includes sliding block and guiding
Part, the guide rod wear and fix on the slide block, and the guide part wears on the slide block and slides with the guide rod
Cooperation.
3. ring external fixation support according to claim 2, which is characterized in that the guide part include sliding pin, spring and
End cap is screwed, threaded hole is set on the sliding block, and the sliding pin is housed in the threaded hole and one end can be relatively described
Guide rod sliding, end cap and the threaded hole of screwing cooperate, enable the spring be pushed against the sliding pin the other end and
It is described to screw between end cap.
4. ring external fixation support according to claim 3, which is characterized in that the end cap that screws includes and the screw thread
The mounting portion of hole cooperation, is provided with the first mounting hole on the mounting portion, is provided on the sliding pin and first mounting hole
Corresponding second mounting hole, the first end of the spring are housed in first mounting hole, the second end receiving of the spring
In second mounting hole.
5. ring external fixation support according to claim 2, which is characterized in that be provided on the guide rod along the guide rod
Axially extending sliding slot, the guide part is slidably matched with the sliding slot.
6. ring external fixation support according to claim 2, which is characterized in that the sliding unit further includes locking member,
The locking member is arranged on the slide block and the sliding block can be fixed on the guide rod.
7. ring external fixation support according to claim 2, which is characterized in that the sliding unit further include connector and
Fastening bolt, the connector connects the sliding block and the fixed ring, is provided with the first fixation hole in the fixed ring, described
The strip-shaped hole radially extended along the fixed ring is provided on connector, the fastening bolt is threaded through first fixation hole
In the strip-shaped hole.
8. ring external fixation support according to claim 7, which is characterized in that the connector include first connecting portion and
Second connecting portion, the first connecting portion and second connecting portion bending connect, and the strip-shaped hole setting connects described first
In socket part, the second connecting portion is fixedly connected with the sliding block.
9. ring external fixation support according to claim 7, which is characterized in that the fixed ring include the first fixed part and
Second fixed part, first fixation hole are arranged on first fixed part, and the spicule component setting is solid described second
Determine in portion, first fixed part is multiple and being provided at circumferentially spaced along the fixed ring, and second fixed part is connected to
Between two neighboring first fixed part, the radial dimension of first fixed part is greater than the radial ruler of second fixed part
It is very little.
10. ring external fixation support according to claim 9, which is characterized in that first fixation hole is described first
Along the circumferential array of the fixed ring at least two rows of on fixed part.
11. ring external fixation support according to claim 9, which is characterized in that be arranged on second fixed part useful
In the second fixation hole for installing the spicule component, second fixation hole is on second fixed part along the fixed ring
Circumferential array is in a row.
12. ring external fixation support according to claim 2, which is characterized in that the sliding unit further includes connector
And fastening bolt, the connector connect the sliding block and the fixed ring, are provided with the first fixation hole, institute in the fixed ring
The first fixation hole is stated along the circumferential array of the fixed ring at least two rows of, connector is fixed on described the by the fastening bolt
At one fixation hole.
13. according to ring external fixation support described in claim 2-12 any one, which is characterized in that a table of the sliding block
Face is recessed to form installation gap, and the guide rod is threaded through in the installation gap and is fixedly connected with the sliding block.
14. ring external fixation support according to claim 1, which is characterized in that the spicule component further include ball cup,
Rotating ballhead, locking pin and fixed pin, the ball cup are arranged in the fixed ring, the rotating ballhead and the ball cup
Spherical pair connection is formed, the locking pin is arranged on the ball cup and is capable of fixing the rotating ballhead, the fixed pin
It is connect with the rotating ballhead and is used to squeeze into skeleton.
15. ring external fixation support according to claim 1, which is characterized in that further include pressurizing nut, the guide rod is
Screw rod, the pressurizing nut are connect with the screw flight, and the pressurizing nut can push the sliding unit in the spiral shell
It is slided on bar.
16. ring external fixation support according to claim 1, which is characterized in that it is additionally provided with graduated scale on the guide rod,
The graduated scale is for measuring sliding distance of the sliding unit on the guide rod.
17. a kind of fixed device, which is characterized in that including fixed outside two annulars described in any one of claims 1 to 16
Bracket.
18. fixed device according to claim 17, which is characterized in that it further include first connecting rod and second connecting rod, it is described
First connecting rod be connected to one of ring external fixation support fixed ring and another ring external fixation support fixed ring it
Between, the second connecting rod is connected to the guide rod of one of ring external fixation support and the guide rod of another ring external fixation support
Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810479059.1A CN110495937A (en) | 2018-05-18 | 2018-05-18 | Ring external fixation support and fixed device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810479059.1A CN110495937A (en) | 2018-05-18 | 2018-05-18 | Ring external fixation support and fixed device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110495937A true CN110495937A (en) | 2019-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810479059.1A Pending CN110495937A (en) | 2018-05-18 | 2018-05-18 | Ring external fixation support and fixed device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021211443A1 (en) * | 2020-04-15 | 2021-10-21 | Smith & Nephew, Inc. | Conversion kit for an external fixation system |
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| US20140058389A1 (en) * | 2012-08-23 | 2014-02-27 | Stryker Trauma Sa | Bone transport external fixation frame |
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| US20160022314A1 (en) * | 2013-03-13 | 2016-01-28 | DePuy Synthes Products, Inc. | External bone fixation device |
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| CN209253072U (en) * | 2018-05-18 | 2019-08-16 | 武汉德骼拜尔外科植入物有限公司 | Ring external fixation support and fixed device |
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| DE3510305A1 (en) * | 1985-03-22 | 1986-09-25 | Isidor Prof. Dr.med. 6930 Eberbach Wasserstein | Device for the external fixation of bone segments |
| CN2074171U (en) * | 1990-08-08 | 1991-04-03 | 吴道荣 | Extracorporeal bone fracture fixer |
| CN2461500Y (en) * | 2000-12-13 | 2001-11-28 | 李绍刚 | External fixer for orthopaedics |
| US20090177198A1 (en) * | 2005-12-29 | 2009-07-09 | Matsukidis Theodoros | Compression-distraction device |
| CN102018557A (en) * | 2010-12-20 | 2011-04-20 | 常州市康辉医疗器械有限公司 | External fixation bracket with pressurized thread for orthopedics |
| CN102247198A (en) * | 2011-06-29 | 2011-11-23 | 温建民 | Combined three-dimensional traction mounting bracket for wrist joint |
| CN202365897U (en) * | 2011-10-27 | 2012-08-08 | 天津市新中医疗器械有限公司 | Three-dimensional space external fixation frame |
| US20140058389A1 (en) * | 2012-08-23 | 2014-02-27 | Stryker Trauma Sa | Bone transport external fixation frame |
| US20160022314A1 (en) * | 2013-03-13 | 2016-01-28 | DePuy Synthes Products, Inc. | External bone fixation device |
| CN103445833A (en) * | 2013-09-06 | 2013-12-18 | 江苏广济医疗科技有限公司 | Shoulder joint dynamic and static combined regulation external fixator |
| CN203619643U (en) * | 2013-09-25 | 2014-06-04 | 三河市迈迪克医疗器械有限公司 | External fixing support for pelvis fracture |
| CN104367373A (en) * | 2014-11-10 | 2015-02-25 | 山东航维骨科医疗器械股份有限公司 | Reduction fixator for department of orthopedics |
| CN206315120U (en) * | 2016-08-12 | 2017-07-11 | 张家港市亚堤仕医疗咨询管理有限公司 | Knee sprung contracture KAFO |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021211443A1 (en) * | 2020-04-15 | 2021-10-21 | Smith & Nephew, Inc. | Conversion kit for an external fixation system |
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