CN206745428U - Fracture multi-faceted external fixator for restoring - Google Patents
Fracture multi-faceted external fixator for restoring Download PDFInfo
- Publication number
- CN206745428U CN206745428U CN201621269887.5U CN201621269887U CN206745428U CN 206745428 U CN206745428 U CN 206745428U CN 201621269887 U CN201621269887 U CN 201621269887U CN 206745428 U CN206745428 U CN 206745428U
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- spicule
- ball
- installation portion
- dovetail
- adjusting
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Abstract
The utility model discloses the multi-faceted external fixator for restoring of one kind fracture, it includes mandrel, sleeve pipe, sliding track mechanism, two of right angle angular micro-adjusting mechanism and spicule first and second installation portion each other, spicule first, second installation portion respectively with mandrel, first is disposed between sleeve pipe, second universal head, sliding track mechanism includes cross dovetail guide, the first fitting sleeve is fixedly arranged on respectively, first and second dovetail geosynclinal block on mandrel, first and second regulating bolt, two dovetail geosynclinal blocks are slidedly arranged on dovetail guide respectively, first, second regulating bolt spins dovetail guide respectively, each angular micro-adjusting mechanism includes an Adjusting bolt Adjusting screw pipe, a pair of spherical plain bearing rod ends at the Adjusting bolt Adjusting screw pipe both ends are rotatably connected in respectively, it is individually fixed in sleeve pipe and two connecting rods on the installation portion of spicule second, each spherical plain bearing rod end is hubbed at respective link respectively.Fracture end lateral displacement and angulation displacement can be corrected using the utility model of such scheme, not only rapid operation, and reduce reduction of fracture difficulty.
Description
【Technical field】
A kind of multi-faceted external fixator for restoring of fracturing is the utility model is related to, for being directed to dislocation in orthopaedics Minimally Invasive Surgery
Fracture end carries out multi-faceted reset, belongs to orthopedic medical device technical field.
【Background technology】
The reduction of the fracture is substantially to be resetted by orthopedist's manpower in operation at present, and bone is held by instruments such as bone holding forcep
Roll over end, assistant traction, correct displacement fracture, it is necessary to manpower it is more.On the other hand, difficulty is maintained after reset, it is necessary to pass through
The means such as reduction forceps clamping, Kirschner wire or screw reach interim fixation, because wound is big to the blood supply damage of fracture end greatly, periosteum
Spalling damage is big, easily causes delayed healing even bone nonunion, in view of this, existing medical device industry needs the bone of hommization badly
Roll over external fixator for restoring.
【Utility model content】
The purpose of this utility model, which is to provide, a kind of can correct fracture end lateral displacement and the fracture of angulation displacement is multi-party
Position external fixator for restoring.
Therefore, the utility model provides following technical scheme：
Fracture multi-faceted external fixator for restoring, including a mandrel, the branch casing being set on mandrel, spicule first are pacified
Dress portion and the installation portion of spicule second, are disposed with the first universal head between the installation portion of spicule first and mandrel, spicule second is installed
The second universal head is disposed between portion and sleeve pipe, first universal head includes ten thousand be fixed on the installation portion of spicule first
To joint ball, kink in the ball-head cover on the gimbal suspension ball its universal ball end, the first fitting sleeve and in the first fitting sleeve
Ball cup, the first fitting sleeve snaps connection with ball-head cover, the ball cup by the cam pin that is plugged on the first fitting sleeve with
The spherical contact of universal ball end, second universal head include gimbal suspension ball, the work being fixed on the installation portion of spicule second
Ball-head cover, the second fitting sleeve and the ball cup in the second fitting sleeve being placed on the gimbal suspension ball its universal ball end,
Two fitting sleeves snap connection with ball-head cover, and the ball cup is in ball by the cam pin and universal ball end being plugged on the second fitting sleeve
Face contacts, wherein, the second fitting sleeve is by cannula tip direct forming, its improvement：Also include a sliding track mechanism, installation
Angular a micro-adjusting mechanism and another angular micro-adjusting mechanism on sleeve pipe and the installation portion of spicule second, this two angular fine settings
Mechanism is mutually at right angles arranged, and is all used to adjust spicule the second installation portion angle, and the sliding track mechanism is led including a cross dovetail
Rail, the first dovetail geosynclinal block being fixedly arranged on the first fitting sleeve end face, the second dovetail geosynclinal block being fixedly arranged on end face of mandrel, first are adjusted
Section bolt and the second regulating bolt, the first dovetail geosynclinal block and the second dovetail geosynclinal block slide be disposed on cross dovetail guide respectively,
First regulating bolt, the second regulating bolt are movably set in the first dovetail geosynclinal block, on the second dovetail geosynclinal block respectively, and first,
Two regulating bolts are mutually rotatably connected on the cross dovetail guide at a right angle, the regulating bolt of turn first, the second regulating bolt, can be with
Each other vertical locus of the installation portion of spicule first with the installation portion of spicule second is adjusted, an angular micro-adjusting mechanism includes one
Bar Adjusting bolt Adjusting screw pipe, a pair of spherical plain bearing rod ends for being rotatably connected in the Adjusting bolt Adjusting screw pipe both ends respectively, it is individually fixed in sleeve pipe and bone
Two connecting rods parallel to each other on the installation portion of pin second, each spherical plain bearing rod end are hubbed on a corresponding connecting rod respectively,
Another angular micro-adjusting mechanism includes an Adjusting bolt Adjusting screw pipe, is rotatably connected in a pair of rod end joints at the Adjusting bolt Adjusting screw pipe both ends respectively
Bearing, it is individually fixed in sleeve pipe and two connecting rods parallel to each other on the installation portion of spicule second, each spherical plain bearing rod end difference
Corresponding to being hubbed on a connecting rod.
As preferential, above-mentioned first dovetail geosynclinal block and the first fitting sleeve are integral part, and the second dovetail geosynclinal block is with mandrel
One single piece.
To save die sinking expense, the manufacturing cost of the multi-faceted external fixator for restoring of this fracture is reduced, said one is angularly micro-
Regulating mechanism and another angular micro-adjusting mechanism are two general mechanisms.
Compared with prior art, the utility model has the following advantages that and good effect：
After adopting the above technical scheme, during the regulating bolt of turn first (when this bolt is horizontally-arranged state), pass through translation the
One dovetail geosynclinal block, drive the installation portion of spicule first accordingly translate so that with the fracture end that the installation portion of spicule first is connected relative to
The human body translation to repose, to be finally reached the effect for one lateral displacement of fracture end that correction is connected with the installation portion of spicule first；
Similarly, during the regulating bolt of turn second (when this bolt is in vertical state), by moving up and down the second dovetail geosynclinal block, spicule is driven
Second installation portion accordingly moves up and down, and can adjust the height with the fracture end that the installation portion of spicule second is connected relative to the human body that reposes
Position, to be finally reached the effect for fracture end another lateral displacement that correction is connected with the installation portion of spicule second.
When the swivel nut pipe of one angular micro-adjusting mechanism of turn, the installation portion of spicule second is set to upwarp or sagging, with trickle
Its elevation angle of fracture end or inclination angle being connected with the installation portion of spicule second are adjusted, is connected with being finally reached correction with the installation portion of spicule second
The effect of the angulation displacement of fracture end one connect；Similarly, when the swivel nut pipe of another angular micro-adjusting mechanism of turn, pacify spicule second
Dress portion tend to human motion or deviate human body, the fracture end being connected with fine adjustments with the installation portion of spicule second outside be biased into angle or
Angle is biased into person, to be finally reached the effect for another angulation displacement of fracture end that correction is connected with the installation portion of spicule second.
To sum up, the utility model reduction of the fracture rapid operation is easy, manpower using few, meet well the reduction of the fracture and
Fixed needs, fracture multi-faceted external fixator for restoring during orthopaedics Minimally Invasive Surgery, greatly reduce with the use of the utility model
Reduction of the fracture operating difficulty, can reduce periosteum stripping and blood supply damage, improve reseting precision, beneficial to union, mitigate
Patient's pain, and facilitate subsequent installation bone plate, while make minimal invasion Internal fixation technology application more easy.
【Brief description of the drawings】
The utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the multi-faceted external fixator for restoring of the utility model fracture；
Fig. 2 is the sleeve structure schematic diagram in the utility model；
Fig. 3 is the mandrel radial cutaway view in the utility model；
Fig. 4 (5) is the ball cup structural representation in first, second universal head；
Fig. 6 (7) is the structural representation of an angular micro-adjusting mechanism (another angular micro-adjusting mechanism)；
Fig. 8 is the stereogram of cross dovetail guide；
Fig. 9 is the first dovetail geosynclinal block and the first fitting sleeve is the overall structural representation of a part.
【Embodiment】
Refer to shown in Fig. 1,2,3,4,5,6,7,8,9, be preferred embodiment of the present utility model.
Fracture multi-faceted external fixator for restoring, including a mandrel 3, the branch casing 4 being set on mandrel 3, spicule
One installation portion 1 and the second installation portion of spicule 2, are disposed with the first universal head 5, spicule between the first installation portion of spicule 1 and mandrel 3
The second universal head 6 is disposed between second installation portion 2 and sleeve pipe 4.
Screw 40 is offered on sleeve pipe 4, after holding screw S0 is screwed in, holding screw S0 head end dieback is opened in mandrel 3
If the bottom land of adjustment elongated slot 30, complete the adjustable fixation of sleeve pipe 4 and mandrel 3.
The first installation portion of spicule 1 is made up of mounting seat 11, needle clamping plate 12 and hexagon socket head cap screw S.Needle clamping plate 12 is attached to installation
To be fixed after on seat 11 by two pieces of hexagon socket head cap screw S, the first installation portion of spicule 1 after fixing is in class Elliptic Cylinder just,
And the class Elliptic Cylinder involuted has the mounting hole 10 used in for installation spicule, connecting rod；The second installation portion of spicule 2 and
Be made up of mounting seat 21, needle clamping plate (in Fig. 1 do not see) and hexagon socket head cap screw S, needle clamping plate be attached in mounting seat 21 after by two
Piece hexagon socket head cap screw S is fixed, it is fixed after spicule second install 2 and be in class Elliptic Cylinder, and this is involuted
Class Elliptic Cylinder has the mounting hole 20 used in for installation spicule, connecting rod.For save mold cost, the first installation portion of spicule 1 with
Spicule 2 structures of the second installation portion are identical.
Refer to shown in Fig. 1 left-hand sides, the first universal head 5 includes the universal pass being fixed on the first installation portion of spicule 1
Section ball 51, kink connect in the ball-head cover 52 on the gimbal suspension ball 51 its universal ball end 511, the first fitting sleeve 53 and positioned at first
Ball cup 54 in headgear 53, ball-head cover 52 snap connection with the first fitting sleeve 53, and ball cup 54 is by being plugged in the first joint
Cam pin H on set 53 with universal ball end 511 is spherical contacts.
The joint handle 512 of gimbal suspension ball 51 is fixedly connected into one by roundlet pin (not seen in figure) with mounting seat 11
Body；Cam pin H is radially plugged in the pin-and-hole 530 of the first fitting sleeve 53, and axially lining is attached to the first fitting sleeve 53 to ball cup 54 again
Interior, ball cup 54 offers the concave curved being adapted with universal ball end 511 with the opposite side of gimbal suspension ball 51 (outside of ball cup 54)
Face, ball cup 54 and cam pin H opposite sides (inner side of ball cup 54) then offer the pit 540 being adapted with cam pin H, when turning
During dynamic this cam pin H, may be such that ball cup 54 it is axially a little mobile and with 511 spherical conflict of universal ball end, with reference to Fig. 4,5,9
It is shown.
Refer to shown in Fig. 1 right-hand sides, the second universal head 6 includes the universal pass being fixed on the second installation portion of spicule 2
Section ball 61, kink connect in the ball-head cover 62 on the gimbal suspension ball 61 its universal ball end 611, the second fitting sleeve 41 and positioned at second
Ball cup 64 in headgear 41, ball-head cover 62 snap connection with the second fitting sleeve 41, and ball cup 64 is by being plugged in the second joint
Cam pin H on set 41 with universal ball end 611 is spherical contacts, wherein, by the end of sleeve pipe 4, (Fig. 1 is shown the second fitting sleeve 41
Right part) direct forming.
The joint handle 612 of gimbal suspension ball 61 is fixedly connected integrally by roundlet pin I with mounting seat 21；Cam pin H
Radially it is plugged in the second fitting sleeve 41, axially lining is attached in the second fitting sleeve 41 ball cup 64 again, ball cup 64 and universal pass
Section ball 61 opposite side (outside of ball cup 64) offers the concave curved surface being adapted with universal ball end 611, ball cup 64 and cam pin H
Opposite side (inner side of ball cup 64) then offers the pit 640 being adapted with cam pin H, when rotating cam pin H, may be such that
Ball cup 64 it is axially a little mobile and with 611 spherical conflict of universal ball end, with reference to shown in Fig. 4,5.
Ten thousand in gimbal suspension ball 51, ball-head cover 52, the universal head 6 of ball cup 54 and second in first universal head 5
There is identical structure respectively to joint ball 61, ball-head cover 62, ball cup 64, part universality is strong.
The improvement of the application is also to include a sliding track mechanism 7, is installed on sleeve pipe 4 and the second installation portion of spicule 2
An angular micro-adjusting mechanism 8 (Fig. 1 is shown as vertical overhead) and be installed on sleeve pipe 4 and the second installation portion of spicule 2 another
Angular micro-adjusting mechanism 9 (Fig. 1 shows in lower section), this two angular micro-adjusting mechanisms arranged at right angles each other.
The sliding track mechanism 7 includes a cross dovetail guide 70, the first dovetail being fixedly arranged on the end face of the first fitting sleeve 53
Geosynclinal block 71 (having level trough, Fig. 1 is not seen), (Fig. 1 is visible with vertical for the second dovetail geosynclinal block 72 being fixedly arranged on the end face of mandrel 3
Straight trough), the first regulating bolt S1 and the second regulating bolt S2.First dovetail geosynclinal block 71 slides respectively with the second dovetail geosynclinal block 72 matches somebody with somebody
On cross dovetail guide 70, the first regulating bolt S1, the second regulating bolt S2 are movably set in the first dovetail geosynclinal block respectively
71st, on the second dovetail geosynclinal block 72, and the first regulating bolt S1, the second regulating bolt S2 are mutually rotatably connected in the cross dovetail at a right angle
On guide rail 70.
Fig. 8 is visible, and the dovetail of its arranged on left and right sides of cross dovetail guide 70 is in space cross distribution, cross dovetail guide 70
Two opened up spin in space cross distribution screw for regulating bolt.
First dovetail geosynclinal block 71 and the first fitting sleeve 53 are integral part；Second dovetail geosynclinal block 72 is integral with mandrel 3
Part.
Second dovetail geosynclinal block 72 is welded in the left end of mandrel 3.
Fig. 1 is visible, and the first dovetail geosynclinal block 71 has bending part 711, and the first regulating bolt S1 is horizontal to be located at the bending part 711
In the through hole opened up, and first regulating bolt S1 its catch S11 and bolt head respectively positioned at this bending part 711 inwall side,
Outer wall side, the first regulating bolt S1 is horizontal to be rotatably connected on cross dovetail guide 70；Similarly, the second dovetail geosynclinal block 72 has bending
Portion 721, in the vertical through holes opened up located at the bending part 721 of the second regulating bolt S2, and second regulating bolt S2 its catch
(not seen in Fig. 1) and bolt head are respectively positioned at the inwall side of this bending part 721, outer wall side, the second vertical rotations of regulating bolt S2
It is connected on cross dovetail guide 70.
One angular micro-adjusting mechanism 8 includes an Adjusting bolt Adjusting screw pipe 80, is rotatably connected in the Adjusting bolt Adjusting screw pipe 80 left and right two respectively
The spherical plain bearing rod end 81,82 at end, it is individually fixed in sleeve pipe 4 and two connecting rods parallel to each other on the second installation portion of spicule 2
83rd, 84, spherical plain bearing rod end 81 is hubbed on connecting rod 83, and spherical plain bearing rod end 82 is then hubbed on connecting rod 84.
Another angular micro-adjusting mechanism 9 includes an Adjusting bolt Adjusting screw pipe 90, to be rotatably connected in the Adjusting bolt Adjusting screw pipe 90 respectively left and right
The spherical plain bearing rod end 91,92 at both ends, it is individually fixed in sleeve pipe 4 and two companies parallel to each other on the second installation portion of spicule 2
Bar 93,94, spherical plain bearing rod end 91 is hubbed on connecting rod 93, and spherical plain bearing rod end 92 is then hubbed on connecting rod 94.
One angular micro-adjusting mechanism 8 and another angular micro-adjusting mechanism 9 are two general mechanisms.
When the utility model is specifically used, anesthesia scheme is determined according to the age of patient and the state of an illness, distinguishes bone under X-ray machine
Folding displacement situation respectively squeezes into two stainless steel spicules with selected position of threading a needle from the leg at fracture both ends, then, with spicule the
One installation portion 1, the second installation portion of spicule 2 are fixedly clamped spicule respectively, this external fixator is located at the preceding outside of leg, and outer solid
It is consistent with the length direction of limbs to determine device length direction.
Pass through the Adjusting bolt Adjusting screw pipe 80 of angular micro-adjusting mechanism 8 and the Adjusting bolt Adjusting screw pipe of another angular micro-adjusting mechanism 9
90 are adjusted respectively, to correct fracture end angulation displacement and fixation.
When needing to adjust fracture end lateral displacement, pass through two regulating bolts S1, S2 of turn sliding track mechanism.
When key cripetura situation occurs, unscrew holding screw S0, after mobile sleeve pipe 4 is in place, then tighten holding screw S0
Until tight against adjustment elongated slot 30.
Claims (3)
- The multi-faceted external fixator for restoring 1. one kind is fractured, including a mandrel, the branch casing being set on mandrel, spicule first Installation portion and the installation portion of spicule second, are disposed with the first universal head between the installation portion of spicule first and mandrel, spicule second is pacified The second universal head is disposed between dress portion and sleeve pipe, first universal head includes being fixed on the installation portion of spicule first Gimbal suspension ball, kink are in the ball-head cover on the gimbal suspension ball its universal ball end, the first fitting sleeve and positioned at the first fitting sleeve Interior ball cup, the first fitting sleeve snap connection with ball-head cover, and the ball cup passes through the cam pin that is plugged on the first fitting sleeve With universal ball end is spherical contacts, gimbal suspension ball that second universal head includes being fixed on the installation portion of spicule second, Kink in ball-head cover, the second fitting sleeve and the ball cup in the second fitting sleeve on the gimbal suspension ball its universal ball end, Second fitting sleeve snaps connection with ball-head cover, and the ball cup is in universal ball end by the cam pin being plugged on the second fitting sleeve Sphere-contact, wherein, the second fitting sleeve is by cannula tip direct forming, it is characterised in that：Also include a sliding track mechanism, installation Angular a micro-adjusting mechanism and another angular micro-adjusting mechanism on sleeve pipe and the installation portion of spicule second, this two angular fine settings Mechanism mutually at right angles arranges that the sliding track mechanism includes a cross dovetail guide, first be fixedly arranged on the first fitting sleeve end face Dovetail geosynclinal block, the second dovetail geosynclinal block, the first regulating bolt and the second regulating bolt being fixedly arranged on end face of mandrel, the first dovetail groove Block and the second dovetail geosynclinal block slide respectively to be disposed on the cross dovetail guide, the first regulating bolt, the second regulating bolt difference Be movably set in the first dovetail geosynclinal block, on the second dovetail geosynclinal block, and first, second regulating bolt be mutually rotatably connected at a right angle this ten On word dovetail guide, an angular micro-adjusting mechanism includes an Adjusting bolt Adjusting screw pipe, is rotatably connected in the Adjusting bolt Adjusting screw pipe both ends respectively A pair of spherical plain bearing rod ends, it is individually fixed in sleeve pipe and two connecting rods parallel to each other on the installation portion of spicule second, each rod end Oscillating bearing is hubbed on a corresponding connecting rod respectively, and another angular micro-adjusting mechanism includes an Adjusting bolt Adjusting screw pipe, difference It is rotatably connected in a pair of spherical plain bearing rod ends at the Adjusting bolt Adjusting screw pipe both ends, is individually fixed in sleeve pipe and two on the installation portion of spicule second Bar connecting rod parallel to each other, each spherical plain bearing rod end are hubbed on a corresponding connecting rod respectively.
- 2. the multi-faceted external fixator for restoring of fracture according to claim 1, it is characterised in that：The first dovetail geosynclinal block with First fitting sleeve is integral part, and the second dovetail geosynclinal block is integral part with mandrel.
- 3. the multi-faceted external fixator for restoring of fracture according to claim 1 or 2, it is characterised in that：It is one angular micro- Regulating mechanism and another angular micro-adjusting mechanism are two general mechanisms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621269887.5U CN206745428U (en) | 2016-11-18 | 2016-11-18 | Fracture multi-faceted external fixator for restoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621269887.5U CN206745428U (en) | 2016-11-18 | 2016-11-18 | Fracture multi-faceted external fixator for restoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206745428U true CN206745428U (en) | 2017-12-15 |
Family
ID=60606654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621269887.5U Withdrawn - After Issue CN206745428U (en) | 2016-11-18 | 2016-11-18 | Fracture multi-faceted external fixator for restoring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206745428U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106691556A (en) * | 2016-11-18 | 2017-05-24 | 周海东 | Multi-azimuth reduction external fixator for bone fracture |
-
2016
- 2016-11-18 CN CN201621269887.5U patent/CN206745428U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106691556A (en) * | 2016-11-18 | 2017-05-24 | 周海东 | Multi-azimuth reduction external fixator for bone fracture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171215 Effective date of abandoning: 20230704 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20171215 Effective date of abandoning: 20230704 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |