CN109984827A - A kind of orthopedic external fixing rack of adjustable bone - Google Patents
A kind of orthopedic external fixing rack of adjustable bone Download PDFInfo
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- CN109984827A CN109984827A CN201910296788.8A CN201910296788A CN109984827A CN 109984827 A CN109984827 A CN 109984827A CN 201910296788 A CN201910296788 A CN 201910296788A CN 109984827 A CN109984827 A CN 109984827A
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 28
- 230000000399 orthopedic effect Effects 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 75
- 239000010959 steel Substances 0.000 claims abstract description 75
- 230000035807 sensation Effects 0.000 claims abstract description 3
- 239000007787 solid Substances 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 6
- 238000004904 shortening Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000000116 mitigating effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 10
- 206010017076 Fracture Diseases 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 208000004221 Multiple Trauma Diseases 0.000 description 2
- 208000023637 Multiple injury Diseases 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010010149 Complicated fracture Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Classifications
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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
- A61B17/62—Ring frames, i.e. devices extending around the bones to be positioned
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a kind of adjustable orthopedic external fixing racks of bone, it threads a needle fixture including combined type fixed ring, link mechanism and step-less adjustment, combined type fixed ring is provided with a pair of setting symmetrical above and below, combined type fixed ring is connected by six roots of sensation link mechanism, and step-less adjustment fixture of threading a needle is fixed in combined type fixed ring；Combined type fixed ring includes arc part, sleeve type connecting piece and bolt-type connector, step-less adjustment fixture of threading a needle includes steel needle stepless regulator, steel needle guide locking device and fixture nut up and down, combined type fixed ring of the invention can adjust the size of fixed ring by way of the position of adjusting nut and removal connector, improve the applicability and compatibility of the present apparatus；Step-less adjustment of the invention fixture of threading a needle may be implemented fine tuning and fix, and provides guiding of threading a needle, not only can be improved the accuracy and safety of the clinical reduction of the fracture, but also the operation strength of mitigation clinician, greatly improves the success rate of operation.
Description
Technical field
The present invention relates to Orthopedic corrections, rehabilitation field, more specifically, more particularly to a kind of adjustable bone it is orthopedic outer solid
Determine frame.
Background technique
In the treatment of surgery bone-operating, when fixed device, is essential, and traditional fixed form generally uses steel plate
Also there is the therapeutic modality of the smaller outer fixation of wound now in interior fixation.Common external fixer is mainly Ilizarov
External fixator, Taylor's skeleton.Ilizarov technology runs through limbs and bone tissue using the thin Kirschner wire of more planes, and it is solid to connect annular
Determine device.Taylor doctor improves ILizarov external fixation system, and six telescopic extension rods are connected obliquely proximally and distally
It on ring, and can be rotated freely at tie point, as long as adjusting the length of a wherein extension rod, a ring will be relatively another
A ring changes position.The extension pole length that relatively lopsided parameter can be calculated using computer software, can imitate and appoint
What deformity constructs Taylor space frame in advance, is treated and corrected various simple or complicated fracture and deformity.Taylor's skeleton
It constitutes are as follows:
1, upper and lower two rings, are referred to as proximal loop and distal loop.
2, the extension rod of six adjustable length, and the length of each extension rod can directly be read.
3, the Universal rotary connector that extension rod is connected with ring.
4, the steel needle and needle folder of ring and bone section are connected and fixed.
A series of different models, fixed-size fixed rings are used in bone orthopedic rehabilitation field at present, it is practical
Using when according to the basic condition of patient, doctor is the fixed ring that patient chooses concrete model.Fixed ring chooses ground when choosing
It is too big, will increase patient and act limitation in rehabilitation, increase hidden danger, and if choose too small, will increase steel needle and extension rod
Installation difficulty, or even cannot use.And since production cost is larger, it is desirable that Taylor's frame that hospital backs up each model is not
Reality, it is difficult to ensure timeliness again in such a way that hospital orders to producer.Simultaneously because the actual conditions of patient, if using
The uncontrollable fixed frame of size is extremely difficult to optimum efficiency.
Steel needle is generally fixed on the appropriate location near fracture by the process of operation, is pressed from both sides by needle and is fixed steel needle
The fixation and adjusting of bone are realized on Ilizarov external fixator or Taylor's skeleton.Ilizarov external fixator and Taylor's frame
Fixed fixture of threading a needle is all made of in certain hole location in upper and lower fixed ring, to reach the ring up and down of human fracture and external fixing rack
It is mutually permanently connected.But middle punch position and asymmetric is operated in actual operation, the hole location of conventional brace might not can be complete
Beauty matches position of threading a needle, furthermore, when steel needle is hammered into subjects bones by surgical, since the height of technical level is different, meeting
Occur steel needle the case where training off need to carry out it is secondary hammer into, will cause secondary or even multiple injury, so that operating difficulty is big, threshold
Height, and the error of very little will be brought great pain to patients.
Summary of the invention
It is an object of the invention to solve to use some column fixed rings when in use in existing bone orthopedic rehabilitation field
Must be chosen according to patient profiles, the size of fixed ring be difficult to be adjusted and conventional brace can not perfect matching thread a needle
Being easy to appear when position causes surgical to hammer into steel needle in subjects bones will appear the case where steel needle trains off and needs to carry out two
It is secondary to hammer into, cause secondary or even multiple injury to make the problem that operating difficulty is big, threshold is high, brings very big pain to patient,
A kind of orthopedic external fixing rack of adjustable bone is proposed, can be adjusted by way of the position of adjusting nut and removal connector
The size of whole fixed frame may be implemented fine tuning and fix, and the accuracy and peace of the clinical reduction of the fracture not only can be improved in guiding of threading a needle
Quan Xing, and mitigate the operation strength of clinician, greatly improve the success rate of operation.
The present invention through the following technical solutions to achieve the above objectives: a kind of orthopedic external fixing rack of adjustable bone, including
Combined type fixed ring, link mechanism and step-less adjustment are threaded a needle fixture, and the combined type fixed ring is provided with setting symmetrical above and below
A pair, combined type fixed ring are connected by six roots of sensation link mechanism, and the fixture of threading a needle of the step-less adjustment for clamping steel needle is fixed on group
In box-like fixed ring；
The combined type fixed ring includes arc part, sleeve type connecting piece and bolt-type connector, the arc part
It is arc-shaped, uniformly distributed multiple mounting holes on arc part, the sleeve type connecting piece includes the arc connecting pin of integral molding
With straight line connecting pin, the arc connecting pin is identical as the width of arc part and radian, and straight line connecting pin is integrally linearly set
It sets, and straight line connecting pin is internally provided with inserting groove；The first fixation hole, the straight line connection are provided on the arc connecting pin
The second fixation hole is provided on end；The bolt-type connector includes the arc connector and straight line connector of integral molding,
The arc connector is identical as the width of arc part and radian, the whole linearly setting of straight line connector, and straight line connects
The size of part is matched with the inserting groove of the straight line connecting pin of sleeve type connecting piece；Upper only third is solid on the arc connector
Determine hole, to be provided with the 4th fixation hole on the straight line connector；Arc on one end and sleeve type connecting piece of the arc part
Shape connecting pin is fixedly connected by passing through the bolt of mounting hole and the first fixation hole, the other end and bolt-type of the arc part
Arc connector on connector is fixedly connected by passing through mounting hole with the bolt of third fixation hole；The bolt-type connector
On straight line connector insertion sleeve type connecting piece on straight line connecting pin on inserting groove and by pass through the second fixation hole and
The bolt of 4th fixation hole is fixedly connected；The quantity of the arc part, sleeve type connecting piece and bolt-type connector is equal, more
A arc part, sleeve type connecting piece and bolt-type connector, which are sequentially connected, to be collectively formed in entire combined type fixed ring；
The link mechanism includes inner screw, external thread sleeve, turncap, and the turncap is fixed on inner screw, inner screw
It is sleeved on inside external thread sleeve and is connected by the external screw thread on inner screw with the screw-internal thread fit on external thread sleeve, when turncap rotates
Inner screw and external thread sleeve relative motion are driven, realizes the elongation and shortening of link mechanism；The end of the inner screw passes through universal
Section one combined type fixed ring of connection, the end of external thread sleeve connects another combined type fixed ring by universal joint；
Step-less adjustment fixture of threading a needle includes steel needle stepless regulator, steel needle guide locking device and fixed spiral shell up and down
Mother, stepless regulator includes screw rod, upper fastening nut, lower fastening nut and sliding ring, the screw rod packet to the steel needle up and down
Adjustable side and fixing end are included, adjustable side is fixed on above fixing end, and screw thread is covered on the adjustable side, is spaced 90 degree on adjustable side
It opens up there are two the perforative straight-line groove for being parallel to screw rod axial line, the sliding ring is sleeved on the adjustable side of screw rod, upper fastening
It is threadedly engaged connection on the adjustable side of the internal screw thread and screw rod of nut and lower fastening nut, the upper and lower ends of sliding ring pass through upper
Fastening nut and lower fastening nut are fixed in the middle part of the adjustable side of screw rod；The internal diameter of the sliding ring and the adjusting splaying of screw rod
Cooperate, bolt hole and the sleeve connection hole through entire sliding ring is offered on sliding ring, between the bolt hole and sleeve connection
It is arranged every 90 degree；The steel needle guide locking device includes steel needle sleeve and locking bolt, and one end of steel needle sleeve is provided with convex
It rises, steel needle sleeve passes through the straight line slot on the sleeve connection hole on sliding ring and the adjustable side of screw rod, the side of steel needle sleeve
A locking hole is provided on face, locking bolt passes through the locking hole of bolt hole and steel needle cartridges sides on sliding ring, by steel
Needle is held out against in steel needle sleeve；The fixing end of the screw rod by fixture nut be fixed on exterior I lizarov external fixator or
On Taylor's skeleton.
Further, the width of the arc part, the width of arc connector, the width of straight line connector, arc connect
The width of the width and straight line connecting pin that connect end is equal.
Further, there are three the arc part, sleeve type connecting piece and bolt-type connector are respectively provided with.
Further, the mounting hole equidistantly distributed on arc part, the mounting hole at arc part both ends and telescopic company
Fitting and bolt-type connector are bolted to connection, and the mounting hole in the middle part of arc part is for connecting spicule fixed frame.
Further, the length of the straight line connector of the bolt-type connector is longer than the straight line connection of sleeve type connecting piece
The length at end, is provided at least six the 4th fixation holes on the straight line connector of bolt-type connector, sleeve type connecting piece it is straight
There are two the second fixation holes for the setting of line connecting pin.
Further, the sleeve connection hole on the lateral surface and sliding ring of steel needle sleeve is interference fitted, outside steel needle sleeve
Straight line slot clearance fit on side and the adjustable side of screw rod.
Further, one end of the steel needle sleeve is provided with boss, and the outer diameter of boss is greater than the sleeve on sliding ring and connects
Connect the diameter in hole.
Further, the sliding ring realizes upper bottom by upper fastening nut and moving up and down for lower fastening nut
The step-less adjustment set.
Further, the width of the straight-line groove on the screw rod adjustable side is slightly larger than the outer diameter of steel needle sleeve.
Further, the screw thread matched with locking bolt is provided on the bolt hole on the sliding ring.
The beneficial effects of the present invention are: 1, of the invention combined type fixed ring by the position of adjusting nut and can go
The size that fixed ring is adjusted except the mode of connector improves the applicability and compatibility of the present apparatus.
2, combined type fixed ring of the present invention is attached by each components, does not need to be changed the mold in production
The processing to realize different size of fixed ring is operated, production cost can be reduced significantly, improves production efficiency.
3, combined type fixed ring high recycling rate of the present invention, can be by the components of fixed ring after patient's recovery from illness
It is recycled, this will be effectively reduced treatment cost.
4, by using combined type fixed ring of the invention, doctor is not necessarily to select the fixed ring of concrete model for patient, and
It is only to need to select fixed ring components appropriate according to the shape of leg or thickness of patient, reduces movement when Rehabilitation
Limitation reduces hidden danger.
5, the present invention can reduce hospital to the model demand of Taylor's frame, not need the Taylor's frame for purchasing various models, only
Needing replacing the suitable present apparatus can be achieved with the adjusting of fixed frame size, greatly reduce the purchase cost of hospital.
6, step-less adjustment of the invention thread a needle fixture may be implemented fine tuning fix, guiding of threading a needle is provided, not only can be improved
The accuracy and safety of the clinical reduction of the fracture, and mitigate the operation strength of clinician, greatly improve the success of operation
Rate.
Detailed description of the invention
Fig. 1 is a kind of whole use state diagram of the adjustable orthopedic external fixing rack of bone of the present invention.
Fig. 2 is the overall mechanism schematic diagram of combined type fixed ring of the present invention.
Fig. 3 is the structural schematic diagram of bolt-type connector in combined type fixed ring of the present invention.
Fig. 4 is the structural schematic diagram of combined type fixed ring middle sleeve formula connector of the present invention.
Fig. 5 be step-less adjustment of the present invention thread a needle clamp strap steel needle when overall structure diagram.
Fig. 6 is overall structure diagram when step-less adjustment of the present invention threads a needle fixture without steel needle.
Fig. 7 is that step-less adjustment of the present invention is threaded a needle the structural schematic diagram of screw rod in fixture.
Fig. 8 is that step-less adjustment of the present invention is threaded a needle the structural schematic diagram of sliding ring in fixture.
Fig. 9 is that step-less adjustment of the present invention is threaded a needle the structural schematic diagram of steel needle sleeve in fixture.
Figure 10 is the structural schematic diagram of link mechanism of the present invention.
In figure, 1- combined type fixed ring, 2- link mechanism, 3- step-less adjustment are threaded a needle fixture, 4- bone, the telescopic connection of 5-
Part, 6- arc part, 7- bolt-type connector, 8- mounting hole, 9- arc connector, 10- straight line connector, 11- third are fixed
Hole, the 4th fixation hole of 12-, 13- arc connecting pin, 14- straight line connecting pin, 15- inserting groove, the first fixation hole of 16-, 17- second
Fixation hole, 18- sleeve connection hole, 19- steel needle, 20- bolt hole, 21- locking hole, 22- protrusion, on 23- straight-line groove, 24- steel needle
Fastening nut, 28- steel needle sleeve, 29- under lower stepless regulator, 25- steel needle guide locking device, 26- fixture nut, 27-
Locking bolt, 30- screw rod, the adjustable side 31-, 32- fixing end, the upper fastening nut of 33-, 34- sliding ring, 35- inner screw, outside 36-
Swivel nut, 37- turncap, 38- universal joint.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings:
As shown in Figure 1, a kind of orthopedic external fixing rack of adjustable bone, including combined type fixed ring 1, link mechanism 2 and nothing
Grade adjusts fixture 3 of threading a needle, and the combined type fixed ring 1 is provided with a pair of setting symmetrical above and below, and combined type fixed ring 1 passes through six
Root link mechanism 2 connects, and the fixture 3 of threading a needle of the step-less adjustment for clamping steel needle 19 is fixed on multiple nothings in combined type fixed ring 1
Grade, which is adjusted, threads a needle after fixture 3 is fixed in combined type fixed ring 1, is worn using these step-less adjustments steel needle 19 on fixture 3 of threading a needle
Enter the fixation that the adjustable orthopedic external fixing rack of bone is realized in the bone 4 of patient.
As shown in figs. 2 to 4, the combined type fixed ring 1 is connected including arc part 6, sleeve type connecting piece 5 with bolt-type
Part 7, the arc part 6 are arc-shaped, and uniformly distributed multiple mounting holes 8 on arc part 6, the sleeve type connecting piece 5 includes one
The molding arc connecting pin 13 of body formula and straight line connecting pin 14, the width and radian of the arc connecting pin 13 and arc part 6
It is identical, the whole linearly setting in straight line connecting pin 14, and straight line connecting pin 14 is internally provided with inserting groove 15；The arc connection
It is provided with the first fixation hole 16 on end 13, the second fixation hole 17 is provided on the straight line connecting pin 14；The bolt-type connection
Part 7 includes the arc connector 9 and straight line connector 10 of integral molding, the width of the arc connector 9 and arc part 6
It is identical with radian, the whole linearly setting of straight line connector 10, and the size of straight line connector 10 and sleeve type connecting piece 5 is straight
The inserting groove 15 of line connecting pin 14 matches；Upper only third fixation hole 11, the straight line connector on the arc connector 9
The 4th fixation hole 12 is provided on 10；One end of the arc part 6 passes through with the arc connecting pin 13 on sleeve type connecting piece 5
It is fixedly connected across mounting hole 8 with the bolt of the first fixation hole 16, the other end and bolt-type connector 7 of the arc part 6
On arc connector 9 be fixedly connected by passing through mounting hole 8 with the bolt of third fixation hole 11；The bolt-type connector 7
On straight line connector 10 be inserted into the inserting groove 15 on the straight line connecting pin 14 on sleeve type connecting piece 5 and solid by passing through second
Determine hole 17 to be fixedly connected with the bolt of the 4th fixation hole 12；The arc part 6, sleeve type connecting piece 5 and bolt-type connector 7
Quantity it is equal, multiple arcs part 6, sleeve type connecting piece 5 and bolt-type connector 7, which are sequentially connected, collectively forms entire combination
In formula fixed ring 1.
The width of the arc part 6, the width of arc connector 9, the width of straight line connector 10, arc connecting pin 13
Width and the width of straight line connecting pin 14 be equal.The arc part 6, sleeve type connecting piece 5 and bolt-type connector 7 are equal
There are three settings.
8 equidistantly distributed of mounting hole on arc part 6, the mounting hole 8 and sleeve type connecting piece 5 at 6 both ends of arc part
It is bolted to connection with bolt-type connector 7, the mounting hole 8 at 6 middle part of arc part is for connecting spicule fixed frame.
The length of the straight line connector 10 of the bolt-type connector 7 is longer than the straight line connecting pin 14 of sleeve type connecting piece 5
Length, be provided at least six the 4th fixation holes 12, sleeve type connecting piece 5 on the straight line connector 10 of bolt-type connector 7
The setting of straight line connecting pin 14 there are two the second fixation hole 17.
As shown in Figure 10, the link mechanism 2 includes inner screw 35, external thread sleeve 36, turncap 37, and the turncap 37 is solid
It is scheduled on inner screw 35, inner screw 35 is sleeved on 36 inside of external thread sleeve and by the external screw thread and external thread sleeve 36 on inner screw 35
Screw-internal thread fit connection, inner screw 35 and 36 relative motion of external thread sleeve are driven when turncap 37 rotates, realizes link mechanism 2
Elongation and shortening；The end of the inner screw 35 connects a combined type fixed ring 1, the end of external thread sleeve 36 by universal joint 38
Another combined type fixed ring 1 is connected by universal joint 38.
As shown in Fig. 5~9, the step-less adjustment thread a needle fixture 3 include steel needle up and down stepless regulator 24, steel needle guiding
Locking system 25 and fixture nut 26, the steel needle up and down stepless regulator 24 include screw rod 30, it is upper fastening nut 33, lower tight
Gu nut 27 and sliding ring 34, the screw rod 30 includes adjustable side 31 and fixing end 32, and adjustable side 31 is fixed in fixing end 32
Side is covered with screw thread on the adjustable side 31, on adjustable side 31 90 degree of interval open up there are two be parallel to passing through for 30 axial line of screw rod
The straight-line groove 23 worn, the sliding ring 34 are sleeved on the adjustable side 31 of screw rod 30, upper fastening nut 33 and lower fastening nut 27
Internal screw thread is connect with being threadedly engaged on the adjustable side 31 of screw rod 30, and the upper and lower ends of sliding ring 34 pass through upper 33 He of fastening nut
Lower fastening nut 27 is fixed on 31 middle part of adjustable side of screw rod 30；Between the internal diameter of the sliding ring 34 and the adjustable side 31 of screw rod 30
Gap cooperates, and offers bolt hole 20 on sliding ring 34 and through the sleeve connection hole 18 of entire sliding ring 34, the bolt hole 20
With the setting of 90 degree of sleeve connection interval；The steel needle guide locking device 25 includes steel needle sleeve 28 and locking bolt 29, steel needle
One end of sleeve 28 is provided with protrusion 22, and steel needle sleeve 28 passes through the sleeve connection hole 18 on sliding ring 34 and the adjusting of screw rod 30
The straight line slot 23 on 31 is held, a locking hole 21 is provided on the side of steel needle sleeve 28, locking bolt 29 passes through sliding
The locking hole 21 of 28 side of bolt hole 20 and steel needle sleeve on circle 34, steel needle 19 is held out against in steel needle sleeve 28；The spiral shell
The fixing end 32 of bar 30 is fixed on exterior I lizarov external fixator or Taylor's skeleton by fixture nut 26.
The lateral surface of steel needle sleeve 28 and the sleeve connection hole 18 on sliding ring 34 are interference fitted, the outside of steel needle sleeve 28
23 clearance fit of straight line slot on face and the adjustable side 31 of screw rod 30.Straight-line groove 23 on the adjustable side 31 of the screw rod 30
Width be slightly larger than steel needle sleeve 28 outer diameter.
One end of the steel needle sleeve 28 is provided with boss, and the outer diameter of boss is greater than the sleeve connection hole 18 on sliding ring 34
Diameter.
The sliding ring 34 realizes upper and lower position by upper fastening nut 33 and moving up and down for lower fastening nut 27
Step-less adjustment.The screw thread matched with locking bolt 29 is provided on bolt hole 20 on the sliding ring 34.
After doctor determines 19 installation site of steel needle, is analyzed by calculating, determine the installation site of fixture, adjust angle
It is mounted on Taylor's frame or other external fixation devices by the fixture nut 26 afterwards, passes through stepless regulator above and below steel needle
24 adjust the position of about 19 steel needles, determine and tighten fixation with the lower fastening nut 27 by upper fastening nut 33 behind position,
Steel needle 2 penetrates patients with fractures appropriate location by steel needle sleeve 28 and installs, and steel needle sleeve 28 provides the guiding of steel needle installation
Effect adjusts the position of front and back by steel needle guide locking device 25, is determined as tightening by the locking bolt 29 later solid
It is fixed.
Above-described embodiment is presently preferred embodiments of the present invention, is not a limitation on the technical scheme of the present invention, as long as
Without the technical solution that creative work can be realized on the basis of the above embodiments, it is regarded as falling into the invention patent
Rights protection scope in.
Claims (10)
1. a kind of orthopedic external fixing rack of adjustable bone, it is characterised in that: including combined type fixed ring (1), link mechanism (2) and
Step-less adjustment is threaded a needle fixture (3), and the combined type fixed ring (1) is provided with a pair of setting symmetrical above and below, combined type fixed ring
(1) it is connected by six roots of sensation link mechanism (2), the step-less adjustment fixture (3) of threading a needle for clamping steel needle (19) is fixed on combined type
In fixed ring (1)；
The combined type fixed ring (1) includes arc part (6), sleeve type connecting piece (5) and bolt-type connector (7), described
Arc part (6) is arc-shaped, and uniformly distributed multiple mounting holes (8) on arc part (6), the sleeve type connecting piece (5) includes one
The molding arc connecting pin (13) of body formula and straight line connecting pin (14), the width of the arc connecting pin (13) and arc part (6)
, straight line connecting pin (14) whole linearly setting identical with radian is spent, and straight line connecting pin (14) are internally provided with inserting groove
(15)；It is provided with the first fixation hole (16) on the arc connecting pin (13), is provided with second on the straight line connecting pin (14)
Fixation hole (17)；The bolt-type connector (7) includes the arc connector (9) and straight line connector (10) of integral molding,
The arc connector (9) is identical as the width of arc part (6) and radian, the whole linearly setting of straight line connector (10),
And the size of straight line connector (10) is matched with the inserting groove (15) of the straight line connecting pin (14) of sleeve type connecting piece (5)；Institute
It states on arc connector (9) and above there was only third fixation hole (11), be provided with the 4th fixation hole on the straight line connector (10)
(12)；One end of the arc part (6) and the arc connecting pin (13) on sleeve type connecting piece (5) pass through across mounting hole
(8) it is fixedly connected with the bolt of the first fixation hole (16), on the other end of the arc part (6) and bolt-type connector (7)
Arc connector (9) be fixedly connected by passing through mounting hole (8) with the bolt of third fixation hole (11)；The bolt-type connection
The inserting groove (15) on the straight line connecting pin (14) in straight line connector (10) insertion sleeve type connecting piece (5) on part (7) is simultaneously
It is fixedly connected by passing through the second fixation hole (17) with the bolt of the 4th fixation hole (12)；The arc part (6), telescopic company
The quantity of fitting (5) and bolt-type connector (7) is equal, and multiple arcs part (6), sleeve type connecting piece (5) and bolt-type connect
Fitting (7), which is sequentially connected, to be collectively formed on entire combined type fixed ring (1)；
The link mechanism (2) includes inner screw (35), external thread sleeve (36), turncap (37), and the turncap (37) is fixed on
On inner screw (35), inner screw (35) is sleeved on external thread sleeve (36) inside and by the external screw thread and external thread sleeve on inner screw (35)
(36) the screw-internal thread fit connection on, drives inner screw (35) and external thread sleeve (36) relative motion when turncap (37) rotates, real
The elongation and shortening of existing link mechanism (2)；The end of the inner screw (35) connects a combined type gas-liquid-solid by universal joint (38)
Determine ring (1), the end of external thread sleeve (36) connects another combined type fixed ring (1) by universal joint (38)；
The step-less adjustment thread a needle fixture (3) include steel needle up and down stepless regulator (24), steel needle guide locking device (25)
With fixture nut (26), stepless regulator (24) includes screw rod (30), upper fastening nut (33), lower fastening to the steel needle up and down
Nut (27) and sliding ring (34), the screw rod (30) include adjustable side (31) and fixing end (32), and adjustable side (31) are fixed on
Above fixing end (32), be covered with screw thread on the adjustable side (31), be spaced on adjustable side (31) 90 degree open up there are two be parallel to
The perforative straight-line groove (23) of screw rod (30) axial line, the sliding ring (34) are sleeved on the adjustable side (31) of screw rod (30), on
The internal screw thread of fastening nut (33) and lower fastening nut (27) is connect with being threadedly engaged on the adjustable side (31) of screw rod (30), sliding
The upper and lower ends of moving-coil (34) are fixed on the adjustable side of screw rod (30) by upper fastening nut (33) and lower fastening nut (27)
(31) middle part；The internal diameter of the sliding ring (34) and adjustable side (31) clearance fit of screw rod (30), sliding ring open up on (34)
There is bolt hole (20) and runs through the sleeve connection hole (18) of entire sliding ring (34), the bolt hole (20) and sleeve connection interval
90 degree of settings；The steel needle guide locking device (25) includes steel needle sleeve (28) and locking bolt (29), steel needle sleeve (28)
One end be provided with raised (22), steel needle sleeve (28) passes through sleeve connection hole (18) on sliding ring (34) and screw rod (30)
Straight line slot (23) on adjustable side (31) is provided with a locking hole (21), locking spiral shell on the side of steel needle sleeve (28)
Bolt (29) passes through the bolt hole (20) on sliding ring (34) and the locking hole (21) of steel needle sleeve (28) side, and steel needle (19) are pushed up
Tightly in steel needle sleeve (28)；The fixing end (32) of the screw rod (30) is fixed on exterior I lizarov by fixture nut (26)
On external fixator or Taylor's skeleton.
2. a kind of adjustable orthopedic external fixing rack of bone according to claim 1, it is characterised in that: the arc part
(6) width, the width of arc connector (9), the width of straight line connector (10), arc connecting pin (13) width and straight line
The width of connecting pin (14) is equal.
3. a kind of adjustable orthopedic external fixing rack of bone according to claim 1, it is characterised in that: the arc part
(6), there are three sleeve type connecting piece (5) and bolt-type connector (7) are respectively provided with.
4. a kind of adjustable orthopedic external fixing rack of bone according to claim 1, it is characterised in that: on arc part (6)
Mounting hole (8) equidistantly distributed, the mounting hole (8) at arc part (6) both ends connect with sleeve type connecting piece (5) and bolt-type
Part (7) is bolted to connection, and the mounting hole (8) in the middle part of arc part (6) is for connecting spicule fixed frame.
5. a kind of adjustable orthopedic external fixing rack of bone according to claim 1, it is characterised in that: the bolt-type connection
The length of the straight line connector (10) of part (7) is longer than the length of the straight line connecting pin (14) of sleeve type connecting piece (5), and bolt-type connects
At least six the 4th fixation holes (12) are provided on the straight line connector (10) of fitting (7), the straight line of sleeve type connecting piece (5) connects
Connecing end (14) setting, there are two the second fixation hole (17).
6. a kind of adjustable orthopedic external fixing rack of bone according to claim 1, it is characterised in that: steel needle sleeve (28)
Sleeve connection hole (18) on lateral surface and sliding ring (34) is interference fitted, lateral surface and screw rod (30) of steel needle sleeve (28)
Straight line slot (23) clearance fit on adjustable side (31).
7. a kind of adjustable orthopedic external fixing rack of bone according to claim 1, it is characterised in that: the steel needle sleeve
(28) one end is provided with boss, and the outer diameter of boss is greater than the diameter in the sleeve connection hole (18) on sliding ring (34).
8. a kind of adjustable orthopedic external fixing rack of bone according to claim 1, it is characterised in that: the sliding ring (34)
Pass through the step-less adjustment for moving up and down realization upper and lower position of upper fastening nut (33) and lower fastening nut (27).
9. a kind of adjustable orthopedic external fixing rack of bone according to claim 1, it is characterised in that: the screw rod (30)
The width of straight-line groove (23) on adjustable side (31) is slightly larger than the outer diameter of steel needle sleeve (28).
10. a kind of adjustable orthopedic external fixing rack of bone according to claim 1, it is characterised in that: the sliding ring
(34) screw thread matched with locking bolt (29) is provided on the bolt hole (20) on.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910296788.8A CN109984827B (en) | 2019-04-14 | 2019-04-14 | Adjustable skeleton orthopedic external fixation frame |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910296788.8A CN109984827B (en) | 2019-04-14 | 2019-04-14 | Adjustable skeleton orthopedic external fixation frame |
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| CN109984827A true CN109984827A (en) | 2019-07-09 |
| CN109984827B CN109984827B (en) | 2024-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910296788.8A Active CN109984827B (en) | 2019-04-14 | 2019-04-14 | Adjustable skeleton orthopedic external fixation frame |
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Cited By (1)
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|---|---|---|---|---|
| CN112255108A (en) * | 2020-11-06 | 2021-01-22 | 浙江工业大学 | External fixation frame experiment table capable of detecting axial stress condition of skeleton |
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| CN109984827B (en) | 2024-06-18 |
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