CN106859751A - For the external fixer of pelvis - Google Patents
For the external fixer of pelvis Download PDFInfo
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- CN106859751A CN106859751A CN201710224520.4A CN201710224520A CN106859751A CN 106859751 A CN106859751 A CN 106859751A CN 201710224520 A CN201710224520 A CN 201710224520A CN 106859751 A CN106859751 A CN 106859751A
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- pelvis
- closing ring
- hole
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- bar segment
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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
- A61B17/60—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
- A61B17/66—Alignment, compression or distraction mechanisms
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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
- A61B2017/564—Methods for bone or joint treatment
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Abstract
The disclosure provides a kind of external fixer for pelvis, including：At least two closing ring assemblies, it is being mutually aligned on the first direction of pelvis and is being spaced apart, each described closing ring assembly includes at least two rigid curved bars, at least two curved bar be movably interconnected into surround and extruding pelvis it is close-shaped, it is described that close-shaped be configured to can be perpendicular to the first direction expansion and contraction to adjust the constraint for pelvis；Multiple coupling assemblies, each described coupling assembly is connected between two adjacent closing ring assemblies；With multiple fixation kits, at least a portion coupling assembly is pivotally coupled to so that push against the body surface that is fixed to outside pelvis with adjustable angle relative to the first direction or be screwed into and be fixed to pelvis.Thereby, it is possible to the pressurization carried out pelvis with 360 ° of regulations, constraint pelvic volume avoids negative suction effect；And by being screwed into push rod or bone grafting pin to bone face, reach and pelvis is fixedly secured.
Description
Technical field
Embodiment of the disclosure is related to the external fixer for pelvis, more particularly to a kind of early stage for pelvis to reset
The external fixer fixed with the later stage.
Background technology
Pelvis, the incidence of fracture of acetabulum just rise year by year, and such patient often merges craniocerebral trauma, thoraco-abdominal injury etc.
Multiple visceral organ injury, dies of illness and disability rate is very high.Diagnosis and treatment to such patient are rescue life first, with time race.Place
Reason shock, avoid amount of bleeding from being continuously increased, quickly strong stable pelvic fracture, reduce pelvic volume, avoid the " negative of pelvis
Inhale effect " seem very urgent.The measure of the early stage interim stabilization pelvis of current clinical practice has following several：Pelvis is bundled
Band：Rapidly, it is noninvasive, simple to operate, but effect is general, and fixing intensity is limited, it is impossible to avoid space of the pelvic volume after binding
Inside occur again " negative to inhale effect " that extruding-expansion is produced；MAST：There is certain folder to lower limb and pelvic fracture
Plate is acted on, and can also increase vacuum cavitations phleborrhagia.But pleural pressure can be increased simultaneously, easily concurrent dysfunction of ventilation, while shadow
Ring the further diagnosis and treatment of lower limb and belly；" C " clamp, is mainly used in stablizing posterior ring pelvic, effect limitation.Should " annular function bone
Basin external fixing rack " is while have the advantages that to be fixed outside three of the above, and can pass through the external fixing rack to fracture during secondary operation
Resetted, draw point is penetrated by second operation, connection draw point is reached ultimate fixation with external fixing rack.
The content of the invention
It is at least one aspect for solving the above problems at least in part, and reduces or at least partly eliminate prior art
Present in defect and deficiency, the embodiment of the present disclosure provide a kind of removable external fixer for pelvis, it passes through reality
Existing purpose.
To realize the purpose of the disclosure, embodiment of the disclosure provides a kind of external fixer for pelvis, described
External fixer includes：At least two closing ring assemblies, are being mutually aligned and are being spaced apart on the first direction of pelvis, often
The individual closing ring assembly includes at least two rigid curved bars, and at least two curved bar is movably mutually interconnected
Be connected into surround and extruding pelvis it is close-shaped, it is described it is close-shaped can be perpendicular to the first direction expansion and contraction adjusting
For the constraint of pelvis；Multiple coupling assemblies, each described coupling assembly is connected between two adjacent closing ring assemblies；With
Multiple fixation kits, are pivotally coupled at least a portion coupling assembly so that relative to the first direction with can
The angle of regulation pushes against the body surface that is fixed to outside pelvis or is screwed into and is fixed to pelvis.
In one embodiment, each described closing ring assembly includes two curved rigid curved bars, described curved
Curved bar part perpendicular to the first direction and coplanar setting and end or near be movably connected to surround and extrude
Pelvis.
In one embodiment, each curved rigid described curved bar includes：Longitudinal bar segment, edge and first direction
Orthogonal second direction extends；Lateral bar segment, extends along the third direction being at an angle of with the second direction；Indulged with positioned at described
To the transition knee section between bar segment and the lateral bar segment, described two respective transition knee sections of arc-shaped bend rod member are in institute
State be arranged in closing ring assembly it is tiltedly relative over the ground.
In one embodiment, the coupling assembly includes connecting rod, and the both ends of each connecting rod are respectively coupled to
Two adjacent closing ring assemblies.
In one embodiment, each in the closing ring assembly and at least a portion coupling assembly also includes clamping
Part, the hold assembly includes：First main part, is formed with first through hole and first clamping orthogonal with the first through hole
Groove；Second main part, it is stacked with first main part, and it is formed with the second through hole and orthogonal with second through hole second
Holding tank；With the first heart axle, the first through hole and second through hole of alignment are extended through so that first main part
Can be rotated around first heart axle relative to each other with second main part, and wherein, each closing ring assembly
The end of two curved bars or the connecting rod of each nearby, and/or at least a portion coupling assembly
End is movably clamped in first holding tank and second holding tank respectively with a curved bar, to adjust
Save expansion and contraction of each described closing ring assembly perpendicular to the first direction, and/or adjust described adjacent two and close
Distance between cyclization component in said first direction.
In one embodiment, each described fixation kit includes：Push rod or bone grafting pin, abutting are fixed to the body surface outside pelvis
Or be screwed into and be fixed to pelvis；And locking member, locking member includes：Base portion, be formed with base portion through hole and with the base portion through hole
Orthogonal base portion holding tank, the connecting rod of at least a portion coupling assembly is movably clamped to the base portion clamping
In groove；Pivot part, the axis direction and the base portion along base portion through hole is stacked, and be formed with pivot part through hole and with the pivot
The orthogonal pivot part holding tank of portion's through hole, the push rod or bone grafting pin are movably clamped in the pivot part holding tank；With
Second heart axle, extends through the base portion through hole and the pivot part through hole of alignment so that the pivot part can be relative to institute
State base portion to be rotated around second heart axle, to adjust the push rod or bone grafting pin relative to the angle that pelvis is pivoted.
In one embodiment, the curved bar also includes：Straight extension bar segment, with longitudinal bar segment and the side
It is aligned at least one of bar segment and is arranged；Threaded rod, be arranged in longitudinal bar segment and the lateral bar segment it is described extremely
Between few one and the extension bar segment；With at least two nuts, wherein, the institute in longitudinal bar segment and the lateral bar segment
State at least one and the extension bar segment each possess internal thread in the end being aligned, and the threaded rod possesses external screw thread
To insert and be threadedly engaged the internal thread, and each described nut displaceably screwed be anchored on external screw thread and internal thread it
Between, with fine-tuned based on thread pitch the curved bar from longitudinal bar segment and the lateral bar segment described in
The length that few one end extends.
In one embodiment, each described curved bar also include perpendicular to the first direction projection and snugly against
At least one rigid tab of the body surface outside pelvis, and each described rigid tab can be connected by flexible-belt.
In one embodiment, the two ends of connecting rod described at least one are permanently fixed to described adjacent two and close respectively
Cyclization component, is preferably coupled on the first direction.
In one embodiment, the bone grafting pin is Schanz screw bone graftings pin, Shi Shi pins or Kirschner wire.
The external fixer for pelvis of the various embodiments of the disclosure, at least possesses following beneficial effect：Can be with
The pressurization that 360 ° of regulations are carried out pelvis, to constrain pelvic volume but avoid pelvis from being further squeezed, it is to avoid occur " negative to inhale effect
Should.Also, to bone face, reach the jail relatively to pelvis by being screwed into push rod or bone grafting pin such as tip dome rod
Gu it is fixed.
Brief description of the drawings
The detailed description made to the disclosure by below with reference to accompanying drawing, above and other feature and advantage of the disclosure
It will be evident that, and can help obtain be fully understood by the disclosure.
Fig. 1 shows a kind of stereogram of the external fixer for pelvis of the exemplary embodiment according to the disclosure；
Fig. 2 shows the top view of external fixer as shown in Figure 1；
Fig. 3 shows the side view of external fixer as shown in Figure 1；
Fig. 4 (a) shows the signal of the hold assembly of the closing ring assembly and coupling assembly in the external fixer shown in Fig. 1
Figure；
Fig. 4 (b) shows the schematic diagram of the locking member of the fixation kit in the external fixer shown in Fig. 1；
Fig. 4 (c) shows the schematic diagram of the bone grafting pin of the fixation kit in the external fixer shown in Fig. 1, and bone grafting pin shows
It is in Schanz screw bone grafting pins.
Fig. 5 shows the stereogram of the external fixer for pelvis of another exemplary embodiment according to the disclosure；
Fig. 6 shows the top view of external fixer as shown in Figure 5, and eliminates directly abut bone face for the sake of simplicity
Fixation kit；
Fig. 7 shows the side view of external fixer as shown in Figure 5；
Fig. 8 shows the schematic diagram of the arc-shaped bend rod member in the closing ring assembly in the external fixer shown in Fig. 5, wherein
The arc-shaped bend rod member is connected integrally by screw thread by multiple bar segments；
Fig. 9 shows the decomposition view of arc-shaped bend rod member as shown in Figure 8.
Specific embodiment
Below by embodiment, and with reference to accompanying drawing, technical scheme of this disclosure is described in further detail.In explanation
In book, same or analogous drawing reference numeral indicates same or analogous part.It is following referring to the drawings to disclosure implementation method
Illustrate that being intended to present general inventive concept of this disclosure explains, and be not construed as a kind of limitation of this disclosure.
In addition, in the following detailed description, for ease of explaining, elaborating many concrete details to provide to present disclosure
The comprehensive understanding of embodiment.It should be apparent, however, that one or more embodiments can also in the case of without these details
It is carried out.In other cases, known construction and device diagrammatically embodies to simplify accompanying drawing.
According to the general plotting of the disclosure, there is provided a kind of external fixer for pelvis, the external fixer includes：
At least two closing ring assemblies, are being mutually aligned and are being spaced apart on the first direction of pelvis, each described closure ring group
Part surround and extruding pelvis, and be configured to can perpendicular to the first direction expansion and contraction with adjust for pelvis squeeze
Pressure；Multiple coupling assemblies, each described coupling assembly is connected between two adjacent closing ring assemblies；With the fixed group of multiple
Part, is pivotally coupled at least a portion coupling assembly so that relative to the first direction with adjustable angle
The body surface that is fixed to outside pelvis of abutting is screwed into and is fixed to pelvis.
Fig. 1 shows a kind of stereogram of the external fixer for pelvis of the exemplary embodiment according to the disclosure.Fig. 3
The side view of external fixer as shown in Figure 1 is shown.
As shown in figs. 1 and 3, in one embodiment of the disclosure, a kind of external fixer 1 for pelvis is disclosed,
Characterized in that, the external fixer 1 includes：At least two closing ring assemblies 2, on the first direction A of pelvis
Be mutually aligned and be spaced apart, each described closing ring assembly 2 include at least two rigid curved bars 21,21 ', it is described at least
Two curved bars be movably interconnected into surround and extruding pelvis it is close-shaped, it is described it is close-shaped can be perpendicular to institute
First direction A expansion and contraction are stated to adjust the constraint for pelvis；Multiple coupling assemblies 3, each described coupling assembly 3 couples
Between two adjacent closing ring assemblies 2；With multiple fixation kits 4, at least a portion connection is pivotally coupled to
Component 3 so that push against the body surface that is fixed to outside pelvis or be screwed into adjustable angle relative to the first direction A and be fixed to
Pelvis, for example, directly abut bone face.Thus, expanded perpendicular to the first direction A by least two closing ring assembly 2
With contraction to adjust the extruding for pelvis, the constraint framework of individual layer is formd, and by the multiple coupling assembly 3 come in institute
Coupled to form the space framework of truss structure between the constraint framework for stating individual layer, thus define is carried out about for pelvis
Adjustable three-dimensional sense that beam is fixed, especially cross-sectional sizes can adjust, and the restriction of convenient pelvis volume is reducing even
Avoid negative suction effect；And by the multiple fixation kit 4 so that the external fixer 1 be held firmly against pelvis and
The body surface on the outside of pelvis is fixed to, or is fixed to bone face with being screwed into, so as to realize firm relative to pelvis during resetting
Fixed or anchoring.
Specifically, as an example, as shown in figure 1, each described closing ring assembly 2 include two it is curved rigid curved
Curved bar part 21,21 ', the curved bar 21,21 ' perpendicular to the first direction A and coplanar setting and end or near
Movably it is connected to surround and extrudes pelvis.For example, each arc-shaped bend rod member is for example in semi arch bar segment or rectangular
Or the half of diamond is two adjacent sides.Thus, each arc-shaped bend rod member essentially forms similar relative to pelvis
In the plane stability structure of gusseted, it is easy to resist applied external force, and using shown two arc-shaped bend rod members with respect to cloth
Put and each other in end connection, the frame structure for possessing closed section of the layering of the external fixer 1 can be formed, by
This forms and maintains the external fixer 1 for possessing global shape steadiness.The external fixer 1 is thus with close-shaped
From outboard containment pelvis, and body surface and the external fixer 1 that for example can also be outside pelvis each closing ring assembly 2
Between extra pad is set with so that patient will not be due to being configured the rigid curved bar directly contact of closing ring assembly 2
Do not felt well with abutting.
Fig. 2 shows the top view of external fixer as shown in Figure 1.
As shown in Fig. 2 in one embodiment of the disclosure, each is further disclosed described curved rigid
The curved bar 21,21 ' includes：Longitudinal bar segment 211,211 ', extends along the second direction B orthogonal with first direction A；Laterally
Bar segment 212,212 ', extends along the third direction being at an angle of with the second direction B；With positioned at longitudinal bar segment 211,211 '
With the lateral bar segment 212, the transition knee section 213,213 ' between 212 ', the curved bar 21,21 ' of described two arcs is respectively
From transition knee section 213,213 ' be arranged in the closing ring assembly 2 tiltedly it is relative over the ground.In this embodiment, each arc
The curved bar of shape is substantially presented as the half for diagonally dividing of rectangle or diamond, that is, possess two it is adjacent
Side.For example, longitudinal bar segment 211,211 ' forms right angle to maximize each curved rigidity with lateral bar segment 212,212 '
Rigidity of the curved bar for the external force applied parallel to pelvis section.For example, the curved bar of this half arc
It is suitable for the different parts such as anterior superior spine, posterior superior iliac spine, ilium spine.
Exemplary embodiment as an alternative, in as every layer of the external fixer 1 of closing ring assembly 2, often
Individual closing ring assembly 2 is also for example made up of in polygonal single-store frame the curved bar of three, four or more arcs, its
In the curved bar of each arc for example formed by least two or even more many adjacent bar segments.
Referring back to Fig. 1 and Fig. 3 is referred to, in one embodiment of the disclosure, the coupling assembly 3 includes connecting rod
31, the both ends of each connecting rod 31 are respectively coupled to two adjacent closing ring assemblies 2.Thus achieve adjacent
A in the first direction between the closing ring assembly 2 of layer is vertical connection, is consequently formed the three-dimensional frame of the external fixer 1
Frame.
Fig. 4 (a) shows the signal of the hold assembly of the closing ring assembly and coupling assembly in the external fixer shown in Fig. 1
Figure.
As shown in Fig. 4 (a), in one embodiment of the disclosure, the closing ring assembly 2 and at least a portion are described
Each in connected components 3 also includes hold assembly 22,32, and the hold assembly 22,32 includes：First main part 221,321, shape
Into having first through hole 2211,3211 and first holding tank 2212,3212 orthogonal with the first through hole；Second main part 222,
322, the axis direction and first main part 221,321 along first through hole are stacked, and are formed with the second through hole 2221,3221
And second holding tank 2222,3222 orthogonal with second through hole；With the first heart axle 223,323, the institute of alignment is extended through
State first through hole and second through hole so that first main part and second main part can relative to each other around described
First heart axle 223,323 rotates, and wherein, the end of two curved bars 21,21 ' of each closing ring assembly 2
Or end and the bending of the connecting rod 31 of each nearby, and/or at least a portion coupling assembly 3
Rod member 21,21 ' is movably clamped to first holding tank 2212,3212 and second holding tank 2222,3222 respectively
It is interior, to adjust expansion and contraction of each described closing ring assembly 2 perpendicular to the first direction A, and/or adjust described adjacent
Two closing ring assemblies 2 between distance on the first direction A.
Thus, as combined shown in Fig. 1 to 3 and Fig. 4 (a), the hold assembly 22 is (with first holding tank 2212 and institute
State the second holding tank 2222) be fixed to the end of two arc-shaped bend rod members 21,21 ' of each closing ring assembly 2 or near,
When tightening fixed by means of the first heart axle 223, each closing ring assembly 2 in stabilization section is realized；And when release first
During heart axle 223, can be by the part near the end for adjusting described two arc-shaped bend rod members 21,21 ' in the described first folder
Hold the positioning in groove 2212 and second holding tank 2222 and then fix big to adjust the section of each closing ring assembly 2
Small tightness and restraining force to adjust the fixation for pelvis, with while stablizing pelvic dimensions and cancelling negative suction effect
Avoid the excessive pressure for pelvis.Similarly, the hold assembly 32 is (with first holding tank 3212 and second folder
Hold groove 3222) two arc-shaped bends need to being connected to of the one end of each connecting rod 31 and its that are fixed in coupling assembly 3
Rod member 21, between one of 21 ', with adjust the external fixer 1 along a first direction A for pelvis vertical restriction range,
It is possible thereby to the distribution density for adjusting the push rod in external fixer 1/bone grafting pin described below fix/is anchored to
Reliability/the fastness of pelvis.Also, for example, when an adjacent two closure ring group extremely to be coupled of the connecting rod 31
The arc bar segment of part 2 (for example extends on two rightabouts vertical with first direction along foregoing longitudinal bar segment respectively
Second direction B and its reversely, or along the direction angled or orthogonal with second direction B extended with foregoing lateral bar segment and
Its is reverse) moved in the holding tank of each self-corresponding hold assembly 32, then substantially by the connecting rod 31 and correspondingly institute
State coupling assembly 3 to be distracted into relative to the inclined arrangements of first direction A, thus substantially shorten two close rings of adjacent layer
The distance between component 2, i.e., the vertical coverage of described external fixer 1 reduces, thus hereafter described in push rod and plant
The vertical density increase of spicule, is easy to more effectively constrain pelvis volume in the range of more accurate vertical reduction.
In operation early stage, by above-mentioned external fixer 1, can be in space with 360 ° of orientation to pelvis (such as on before ilium
The positions such as spine, posterior superior iliac spine, ilium spine) adjustable pressurization is carried out, reach the purpose for reducing pelvic volume.Simultaneously because outer fixed
The strong and rigid structure of device 1, can avoid pelvis from being further squeezed, it is to avoid occur again " negative to inhale effect ".
Fig. 4 (b) shows the schematic diagram of the locking member of the fixation kit in the external fixer shown in Fig. 1.
As shown in Fig. 4 (b), in one embodiment of the disclosure, each described fixation kit 4 includes：Push rod or bone grafting
Pin 41, the body surface that is fixed to outside pelvis of abutting or is screwed into and is fixed to pelvis；With locking member 42, the locking member 42 includes：
Base portion 421, is formed with base portion through hole 4211 and the base portion holding tank 4212 orthogonal with the base portion through hole, and at least a portion is described
The connecting rod 31 of coupling assembly 3 is movably clamped in the base portion holding tank 4212；Pivot part 422 is logical along base portion
The axis direction in hole and the base portion 421 are stacked, and are formed with pivot part through hole 4221 and orthogonal with the pivot part through hole
Pivot part holding tank 4222, the push rod or bone grafting pin 41 are movably clamped in the pivot part holding tank 4222；With
Disloyalty axle 423, extends through the base portion through hole and the pivot part through hole of alignment so that the pivot part 422 can be relative
Rotated around second heart axle 423 in the base portion 421, to adjust the push rod or bone grafting pin 41 relative to the angle that pelvis is pivoted
Degree.The push rod or bone grafting pin 41 are for example spherical in tip, are easy to penetrate the through bone face of body surface in intrusive mood mode.
Thus, as combined shown in Fig. 1 to 3 and Fig. 4 (b), the locking member 42 can first by the connecting rod 31
Movement (for example sliding) regulation in base portion holding tank 4212 comes in push rod described in interior coarse adjustment or bone grafting pin in a big way
41 relative to pelvis vertical position；Then by the base portion around second heart axle 423 relative to the connecting rod 31
Plane Rotation adjusts the direction i.e. lateral angles that the push rod or bone grafting pin 41 point to pelvis in the plane；And then by institute
State pivot part 422 and can be rotated around second heart axle 423 relative to the base portion 421 and exist adjusting the push rod or bone grafting pin 41
The vertically relative luffing angle in pelvis；Finally by the regulation push rod or bone grafting pin 41 in the pivot part holding tank
Move forward and backward to adjust the insertion degree of body surface and pelvis bone face on the outside of relative to pelvis in 4222, thus adjust relative
In the fix stably degree of pelvis.It is achieved thereby that the comprehensive and adjustable multiple spot of size is fixed/anchored.
Based on above-mentioned external fixer 1 (and between body surface alternatively outside pelvis and the external fixer 1 on pad
Pad), in particular with multi-faceted adjustable hold assembly therein and locking member, can be to such as posterior superior iliac spine, ilium
Ant sup, anterior inferior spine, acetabular bone upper limb, it is screwed into perpendicular to any parts such as articulatio sacroiliaca, pubic symphysis and possesses roomy section top
The push rod at end carries out pressurization fixation.For example, by being screwed into the spherical push rod of tip to bone face, it be for example in " C " tee section to have reached
, relatively strong fixation to pelvis, simultaneously because the external fixer has can be set push rod or plant in 360 ° of orientation
The characteristics of spicule, so that the fixation to pelvis is more stablized.For example, being arranged on the roomy push rod of patient's dorsal part plus preceding
Pad is stated, patient's lay comfort can be made.
Then, based on above-mentioned example structure, during second operation, removable pad and/or push rod.According to fracture class
Type, first by being implanted into the bone grafting pin of varying number at the strong side of the outer body surface of pelvis, for example (if there is bilateral in steel bone grafting pin
Damage, then the bone grafting pin can be implanted into for example at rumpbone), thus the external fixer is firmly connected with bone grafting pin, from
And the external fixer serves as pelvis-repositioning frame at this moment.Specifically, fixed with the external fixer by half side pelvis
If after (there is bilateral damage, rumpbone is fixed with the external fixer), by controlling the displacement of offside pelvis, with solid
It is to be resetted with reference to implementation to determine side.After the completion of reset, by the external fixer and multi-faceted adjustable hold assembly and lock
Determine part, such as femoral neck cannulated screw passage, front pillar and rear pillar screw conduits, LC-2 screw conduits, Magic screws can be set up and led to
The multiple screw conduits such as road.Half-thread formula steel bone grafting pin is squeezed into, is connected with the external fixer, carry out final fixed.
Fig. 4 (c) shows the schematic diagram of the bone grafting pin of the fixation kit in the external fixer shown in Fig. 1, and bone grafting pin shows
It is in Schanz screw bone grafting pins.
As shown in Fig. 4 (c), in one embodiment of the disclosure, bone grafting pin is, for example, Schanz screw bone grafting pins, also may be used
It is the Shi Shi pins or Kirschner wire of intrinsic smooth non-threaded bar portion.
In addition, being based on above-mentioned example embodiment, the exemplary embodiment in other modifications and modification can be realized.
Fig. 5 shows the stereogram of the external fixer for pelvis of another exemplary embodiment according to the disclosure；
Fig. 6 shows the top view of external fixer as shown in Figure 5；Fig. 7 shows the side view of external fixer as shown in Figure 5, and
The fixation kit for directly abutting bone face is eliminated for the sake of simplicity；Fig. 8 shows the closure ring group in the external fixer shown in Fig. 5
The schematic diagram of the curved bar of the arc in part, wherein the curved bar of the arc is connected into by screw thread by multiple bar segments
Integrally；And Fig. 9 shows the decomposition view of arc-shaped bend rod member as shown in Figure 8.
As an example, in alternative embodiments, as shown in FIG. 5 and 6, further for example, the curved bar 21,21 ' also includes：
Straight extension bar segment 214,214 ', with longitudinal bar segment 211,211 ' and the lateral bar segment 212, in 212 ' at least one
Individual alignment arrangement；Threaded rod 215,215 ', be arranged in longitudinal bar segment and the lateral bar segment described at least one with
Between the extension bar segment；With at least two nuts 216,216 '.Wherein, longitudinal bar segment 211,211 ' and the lateral rod
Described at least one and the end of each comfortable alignment of the extension bar segment 214,214 ' in section 212,212 ' possess interior spiral shell
Line, and the threaded rod 215,215 ' possesses external screw thread to insert and is threadedly engaged the internal thread, and each described nut
216,216 ' are displaceably screwed and are anchored between external screw thread and internal thread, described curved to be fine-tuned based on thread pitch
Curved bar part extends from the end of described at least one in longitudinal bar segment 211,211 ' and the lateral bar segment 212,212 '
Length.
Property embodiment as an example, each described curved bar also for example include perpendicular to first direction A projections and
Snugly against at least one rigid tab of the body surface outside pelvis, and each described rigid tab can be by flexible-belt
And connect, so as to realize that the flexible binding of additional auxiliary is fixed.
Used as another embodiment of the present disclosure, the two ends of connecting rod 31 described at least one are permanently fixed to described respectively
Two adjacent closing ring assemblies 2, are preferably coupled on the first direction A.Thus between adjacent closing ring assembly 2
Distance is fixed.Other two ends of the connecting rod 31 are for example still fixed to by locking member 42 or by spring chuck
The adjacent closing ring assembly 2.
In another alternate embodiment, the end or neighbouring portion of two adjacent arc bar segments of each closing ring assembly 2
/ for example coupled by the elastic component such as larger spring of rigidity, so that without using foregoing hold assembly therebetween
The regulation of 22 sizes for being capable of achieving the section limited for individual layer closing ring assembly 2.
The external fixer for pelvis of the various embodiments of the disclosure at least possesses following beneficial effect：For example possess
Such as two semi-circular metal external fixing racks of feature, the multi-faceted buckle push-and-pull pole length of threaded pull bar, head end profile can
Adapt to different parts：As half arc is suitable for anterior superior spine, posterior superior iliac spine, ilium spine, spherical the gone directly bone face of tip.In addition,
The external fixer of the disclosure may be implemented in and padded on the external cladding of patient's pelvis, and it passes through external fixing rack and multi-faceted chuck,
Can to posterior superior iliac spine, anterior superior spine, anterior inferior spine, acetabular bone upper limb, perpendicular to any parts such as articulatio sacroiliaca, pubic symphysis twist
Entering pull bar carries out pressurization fixation.Early stage by the external fixing rack, can 360 ° pelvis carried out pressurize, reach reduction pelvic volume
Purpose.Simultaneously because external fixing rack is hard, pelvis can be avoided from being further squeezed, it is to avoid " negative to inhale effect " again.
By being screwed into tip dome rod to bone face, relatively strong fixation of " C " clamp to pelvis is reached, simultaneously because this outrigger has
360 ° the characteristics of put nail, the fixation to pelvis is more stablized.It is easypro that the roomy push-and-pull top rod at rear can make patient lie low plus pad
It is suitable.
Although being illustrated to the disclosure with reference to accompanying drawing, the embodiment disclosed in accompanying drawing is intended to preferred to the disclosure
Implementation method is illustrative, and it is not intended that a kind of limitation of this disclosure.Dimension scale in accompanying drawing is only
Schematically, limitation of this disclosure can not be interpreted as.
It will be understood to those skilled in the art that embodiment described above is all exemplary specific embodiment,
But the protection domain of the disclosure is not limited thereto, those skilled in the art can make improvements, in various embodiments
Independent assortment can be carried out in the case of conflict of the described structure in terms of not recurring structure or principle.
Although some embodiments of this present general inventive concept have been shown and have illustrated, any to be familiar with the general of this art
Logical technical staff will be understood that, in the case of the principle and spirit of the present general inventive concept without departing substantially from the disclosure, can be easy to this
A little embodiments are made change and/or are replaced, and these changes and/or replacement should all be covered within the protection domain of the disclosure.This
The protection domain that disclosed protection domain should be limited by appended claims and their equivalent is defined.
It should be noted that word " including " other elements or step are not excluded for, word "a" or "an" is not excluded for multiple.Separately
Outward, any element label of claim should not be construed as limiting the scope of the present disclosure.
Claims (10)
1. a kind of external fixer (1) for pelvis, it is characterised in that the external fixer (1) includes：
At least two closing ring assemblies (2), are being mutually aligned and are being spaced apart on the first direction of pelvis (A), each institute
Stating closing ring assembly (2) includes at least two rigid curved bars (21,21 '), and at least two curved bar may move
Be interconnected into surround and extruding pelvis it is close-shaped, it is described close-shaped to be expanded perpendicular to the first direction (A)
With shrink adjusting the constraint for pelvis；
Multiple coupling assemblies (3), each described coupling assembly (3) is connected between two adjacent closing ring assemblies (2)；With
Multiple fixation kits (4), are pivotally coupled at least a portion coupling assembly (3) so that relative to described the
One direction (A) is pushed against the body surface that is fixed to outside pelvis or is screwed into and is fixed to pelvis with adjustable angle.
2. external fixer according to claim 1, wherein, each described closing ring assembly (2) is curved including two
Rigid curved bar (21,21 '), the curved bar (21,21 ') is perpendicular to the first direction (A) and coplanar setting
And end or near be movably connected to surround and extrude pelvis.
3. external fixer according to claim 2, wherein, each curved rigid described curved bar (21,
21 ') include：
Longitudinal bar segment (211,211 '), extends along the second direction (B) orthogonal with first direction (A)；
Lateral bar segment (212,212 '), extends along the third direction angled with the second direction (B)；With
Between longitudinal bar segment (211,211 ') and the lateral bar segment (212,212 ') transition knee section (213,
213 '), respective transition knee section (213,213 ') of described two arc-shaped bend rod members (21,21 ') is in the closing ring assembly
(2) it is arranged in tiltedly relative over the ground.
4. external fixer according to claim 2, wherein, the coupling assembly (3) includes connecting rod (31), each institute
The both ends for stating connecting rod (31) are respectively coupled to two adjacent closing ring assemblies (2).
5. external fixer according to claim 4, wherein, the closing ring assembly (2) and at least a portion are described
Each in connected components (3) also includes hold assembly (22,32), and the hold assembly (22,32) includes：
First main part (221,321), is formed with first through hole (2211,3211) and first folder orthogonal with the first through hole
Hold groove (2212,3212)；
Second main part (222,322), the axis direction and first main part (221,321) along first through hole is stacked, and
It is formed with the second through hole (2221,3221) and second holding tank (2222,3222) orthogonal with second through hole；With
First heart axle (223,323), extends through the first through hole and second through hole of alignment so that first master
Body portion and second main part can rotate around first heart axle (223,323) relative to each other, and
Wherein, the end of two curved bars (21,21 ') of each closing ring assembly (2) or nearby, and/or at least
The end of the connecting rod (31) of each in a part of coupling assembly (3) and a curved bar (21,21 ')
Movably it is clamped to respectively in first holding tank (2212,3212) and second holding tank (2222,3222), to adjust
Expansion and contraction of each described closing ring assembly (2) perpendicular to the first direction (A) are saved, and/or is adjusted described adjacent
Distance between two closing ring assemblies (2) on the first direction (A).
6. the external fixer according to any one of claim 4 to 5, wherein, each described fixation kit (4) includes：
Push rod or bone grafting pin (41), the body surface that is fixed to outside pelvis of abutting or are screwed into and are fixed to pelvis；With
Locking member (42), including：
Base portion (421), is formed with base portion through hole (4211) and the base portion holding tank (4212) orthogonal with the base portion through hole, at least
The connecting rod (31) of a part of coupling assembly (3) is movably clamped in the base portion holding tank (4212)；
Pivot part (422), the axis direction and the base portion (421) along base portion through hole is stacked, and is formed with pivot part through hole
(4221) and the pivot part holding tank (4222) orthogonal with the pivot part through hole, the push rod or bone grafting pin (41) are movably
It is clamped in the pivot part holding tank (4222)；With
Second heart axle (423), extends through the base portion through hole and the pivot part through hole of alignment so that the pivot part
(422) can be rotated around second heart axle (423) relative to the base portion (421), to adjust the push rod or bone grafting pin (41)
Relative to the angle that pelvis is pivoted.
7. external fixer according to claim 3, wherein, the curved bar (21,21 ') also includes：
Straight extension bar segment (214,214 '), with longitudinal bar segment (211,211 ') and the lateral bar segment (212,212 ')
At least one of alignment arrangement；
Threaded rod (215,215 '), described at least one be arranged in longitudinal bar segment and the lateral bar segment prolongs with described
Between bar segment long；With
At least two nuts (216,216 '),
Wherein, described at least one and institute in longitudinal bar segment (211,211 ') and the lateral bar segment (212,212 ')
The end for stating each comfortable alignment of extension bar segment (214,214 ') possesses internal thread, and the threaded rod (215,215 ') possesses outer
Screw thread is to insert and is threadedly engaged the internal thread, and each described nut (216,216 ') is displaceably screwed and is anchored on outward
Between screw thread and internal thread, to fine-tune the curved bar from longitudinal bar segment (211,211 ') based on thread pitch
The length extended with the end of described at least one in the lateral bar segment (212,212 ').
8. external fixer according to claim 1 and 2, wherein, each described curved bar also includes perpendicular to described
First direction (A) projection and snugly against at least one rigid tab of the body surface outside pelvis, and each described rigidity is prominent
Going out portion can be connected by flexible-belt.
9. external fixer according to claim 4, wherein, the two ends of connecting rod described at least one (31) are permanent respectively
Be fixed to two adjacent closing ring assemblies (2), be preferably coupled on the first direction (A).
10. external fixer according to claim 6, wherein, the bone grafting pin (41) is Schanz screw bone graftings pin, history
Family name's pin or Kirschner wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710224520.4A CN106859751A (en) | 2017-04-07 | 2017-04-07 | For the external fixer of pelvis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710224520.4A CN106859751A (en) | 2017-04-07 | 2017-04-07 | For the external fixer of pelvis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106859751A true CN106859751A (en) | 2017-06-20 |
Family
ID=59160183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710224520.4A Pending CN106859751A (en) | 2017-04-07 | 2017-04-07 | For the external fixer of pelvis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106859751A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107928956A (en) * | 2017-11-28 | 2018-04-20 | 北京积水潭医院 | A kind of reduction of the fracture grasping device based on operating bed |
| CN108143473A (en) * | 2017-12-27 | 2018-06-12 | 宜兴市人民医院 | A kind of outer resting guide for being accurately positioned pelvis fracture operation |
| CN108143474A (en) * | 2017-12-27 | 2018-06-12 | 苏州大学附属第医院 | A kind of outer resting guide for being accurately positioned pelvis fracture operation |
| CN108553152A (en) * | 2018-05-11 | 2018-09-21 | 石家庄高新区亿成科技有限公司 | Orthopaedics arbitrarily has an X-rayed replacement and fixation frame |
| CN111529029A (en) * | 2020-05-21 | 2020-08-14 | 上海长海医院 | Integrative external fixation support of pelvis front and back ring |
| WO2023005118A1 (en) * | 2021-07-30 | 2023-02-02 | 上海大学 | Holding instrument of pelvic fracture reduction robot |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2284054Y (en) * | 1996-06-21 | 1998-06-17 | 同济医科大学 | Outer fixer for bone |
| CN201968808U (en) * | 2011-01-20 | 2011-09-14 | 范伟杰 | Full ring-shaped external fixation support for pelvis |
| CN202409097U (en) * | 2011-11-30 | 2012-09-05 | 天津市康尔医疗器械有限公司 | External fixation support in orthopedics department |
| CN202761413U (en) * | 2012-08-22 | 2013-03-06 | 高州市人民医院 | Cephalopelvic ring traction device |
| WO2013128046A1 (en) * | 2012-03-01 | 2013-09-06 | Universidad De Málaga | External fixator for pelvic fractures and turnbuckle for opening said fixator |
| CN207928363U (en) * | 2017-04-07 | 2018-10-02 | 张群 | External fixer for pelvis |
-
2017
- 2017-04-07 CN CN201710224520.4A patent/CN106859751A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2284054Y (en) * | 1996-06-21 | 1998-06-17 | 同济医科大学 | Outer fixer for bone |
| CN201968808U (en) * | 2011-01-20 | 2011-09-14 | 范伟杰 | Full ring-shaped external fixation support for pelvis |
| CN202409097U (en) * | 2011-11-30 | 2012-09-05 | 天津市康尔医疗器械有限公司 | External fixation support in orthopedics department |
| WO2013128046A1 (en) * | 2012-03-01 | 2013-09-06 | Universidad De Málaga | External fixator for pelvic fractures and turnbuckle for opening said fixator |
| CN202761413U (en) * | 2012-08-22 | 2013-03-06 | 高州市人民医院 | Cephalopelvic ring traction device |
| CN207928363U (en) * | 2017-04-07 | 2018-10-02 | 张群 | External fixer for pelvis |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107928956A (en) * | 2017-11-28 | 2018-04-20 | 北京积水潭医院 | A kind of reduction of the fracture grasping device based on operating bed |
| CN108143473A (en) * | 2017-12-27 | 2018-06-12 | 宜兴市人民医院 | A kind of outer resting guide for being accurately positioned pelvis fracture operation |
| CN108143474A (en) * | 2017-12-27 | 2018-06-12 | 苏州大学附属第医院 | A kind of outer resting guide for being accurately positioned pelvis fracture operation |
| CN108143473B (en) * | 2017-12-27 | 2020-04-10 | 蒋臻欢 | External fixation guide plate for accurate positioning pelvis fracture operation |
| CN108553152A (en) * | 2018-05-11 | 2018-09-21 | 石家庄高新区亿成科技有限公司 | Orthopaedics arbitrarily has an X-rayed replacement and fixation frame |
| CN111529029A (en) * | 2020-05-21 | 2020-08-14 | 上海长海医院 | Integrative external fixation support of pelvis front and back ring |
| CN111529029B (en) * | 2020-05-21 | 2024-01-23 | 上海长海医院 | Integrative external fixation support of ring around pelvis |
| WO2023005118A1 (en) * | 2021-07-30 | 2023-02-02 | 上海大学 | Holding instrument of pelvic fracture reduction robot |
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