CN110269671A - A kind of adjustable orthopedic external fixing rack of bone of the digitlization that motor is removable - Google Patents
A kind of adjustable orthopedic external fixing rack of bone of the digitlization that motor is removable Download PDFInfo
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- CN110269671A CN110269671A CN201910296787.3A CN201910296787A CN110269671A CN 110269671 A CN110269671 A CN 110269671A CN 201910296787 A CN201910296787 A CN 201910296787A CN 110269671 A CN110269671 A CN 110269671A
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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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Abstract
The invention discloses a kind of digitlizations that motor is removable, and the orthopedic external fixing rack of bone is adjusted, it threads a needle fixture including combined type fixed ring, removable link mechanism and step-less adjustment, combined type fixed ring is provided with a pair, by the six roots of sensation removable link mechanism connection, step-less adjustment fixture of threading a needle is fixed in combined type fixed ring combined type fixed ring；Removable link mechanism includes electric pushrod, shaft coupling, connection arrangement, upper fixed ring, lower fixed ring, fine adjustment type connector, spiral connecting rod, universal joint, pin type connector and sleeve connector；The size that fixed ring can be adjusted by way of the position of adjusting nut and removal connector of the invention, improves the applicability and compatibility of the present apparatus；The design of detachable electric pushrod is provided, first substitution attachment device is bolted at the both ends of line handspike, keeps two-end-point position not change, then remove to electric pushrod, is substituted using the screw device of substitution.
Description
Technical field
The present invention relates to Orthopedic corrections, rehabilitation field, more specifically, more particularly to a kind of digitlization that motor is removable can
Adjust the orthopedic external fixing rack of bone.
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.
Screw type Taylor's frame is used in bone orthopedic rehabilitation field at present, clinical operation Shi doctor first pacifies to patient
Fixed ring is loaded onto, after the position of distal loop and proximal loop determines, is attached with Taylor's bar.Taylor's bar passes through adjustable diameter and screw adjusting
The spacing of stud and sleeve changes length, gradually adjusts the collapsing length of six roots of sensation Taylor bar, can gradually correct proximal loop and remote
Relative pose between end ring is realized the reset correction of bone and is fixed.But clinically discovery uses the Taylor of adjustable diameter and screw adjusting
Bar efficiency is not high enough, and especially when fracture dislocation is bigger, installation is too slow when operation.While the method precision of adjustable diameter and screw adjusting is not
Enough height, at the time of surgery, in order to guarantee precision, can be used electrically driven (operated) mode and are adjusted.But electrically driven (operated) telescopic device is such as
Electric pushrod, linear motor etc. cannot control distance when installation well, may need repeatedly fine tuning during installation, and imitate
Fruit is bad.
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,
It proposes a kind of digitlization that motor is removable and the orthopedic external fixing rack of bone is adjusted, it can position by adjusting nut and removal
The mode of connector adjusts the size of fixed frame, fine tuning may be implemented and fix, clinical fracture not only can be improved in guiding of threading a needle
The accuracy and safety of reset, and mitigate the operation strength of clinician, the success rate of operation is greatly improved, and both may be used
Bar length to be adjusted by electric pushrod driving, can also also may be used after the completion of motor is adjusted by adjustable diameter and screw adjusting length
Easily to be dismantled.
The present invention is through the following technical solutions to achieve the above objectives: a kind of adjustable bone of digitlization that motor is removable is rectified
Shape external fixing rack, including combined type fixed ring, removable link mechanism and step-less adjustment are threaded a needle fixture, the combined type fixed ring
It is provided with a pair of setting symmetrical above and below, combined type fixed ring is used for clamping steel needle by the removable link mechanism connection of the six roots of sensation
Step-less adjustment fixture of threading a needle be fixed in combined type fixed ring；
Step-less adjustment fixture of threading a needle includes adjusting post, steel needle sleeve, fixture nut, upper and lower locking bolt, front and back locking
Bolt and adjusting slider, the adjusting post include superposed rectangle adjustable side and the column installation end positioned at lower part, institute
It states and is provided with perforative straight-line groove on the opposite end face of two of them of rectangle adjustable side；The upper end of the column installation end is fixed
In the bottom of rectangle adjustable side, the lower part of column installation end by fixture nut be fixed on exterior I lizarov external fixator or
On Taylor's skeleton；The square hole matched with the rectangle adjustable side of adjusting post is provided on the adjusting slider, adjusting slider is logical
It crosses square hole to be sleeved on the rectangle adjustable side of adjusting post and slide up and down along rectangle adjustable side, a side of adjusting slider
It is provided with sliding block locking hole on face, the screw thread matched, upper and lower locking spiral shell are provided on sliding block locking hole and upper and lower locking bolt
Adjusting slider is fixed on the rectangle adjustable side of adjusting post by the sliding block locking hole that bolt passes through on adjusting slider；The adjusting
It is provided with perforative sleeve mounting hole on two sides adjacent with the side for being provided with sliding block locking hole on sliding block, one of them
It is provided with cylindrical projection on side where sleeve mounting hole, is provided in cylindrical projection and sleeve mounting hole aperture is consistent passes through
The through-hole worn, steel needle sleeve sequentially pass through the sleeve mounting hole on adjusting slider, straight-line groove and adjusting slider on adjusting post
On cylindrical projection on through-hole；The steel being connected with the through-hole inside cylindrical projection is additionally provided on the periphery of cylindrical projection
Needle locking hole is provided with circular hole corresponding with steel needle locking hole site on steel needle sleeve；Front and back locking bolt is locked across steel needle
Only steel needle and steel needle sleeve are fixed on adjusting slider by hole and circular hole；
The combined type fixed ring includes arc part, sleeve type connecting piece and bolt-type connector, and the arc part is in circle
Arc, uniformly distributed multiple mounting holes on arc part, the sleeve type connecting piece include the arc connecting pin of integral molding and straight
Line connecting pin, the arc connecting pin is identical as the width of arc part and radian, the whole linearly setting in straight line connecting pin, and
Straight line connecting pin is internally provided with inserting groove；The first fixation hole is provided on the arc connecting pin, on the straight line connecting pin
It is provided with the second fixation hole；The bolt-type connector includes the arc connector and straight line connector of integral molding, described
Arc connector is identical as the width of arc part and radian, the whole linearly setting of straight line connector, and straight line connector
Size is matched with the inserting groove of the straight line connecting pin of sleeve type connecting piece；Upper only third is fixed on the arc connector
Hole is provided with the 4th fixation hole on the straight line connector；Arc on one end and sleeve type connecting piece of the arc part
Connecting pin is fixedly connected by passing through the bolt of mounting hole and the first fixation hole, and the other end and bolt-type of the arc part connect
Arc connector on fitting is fixedly connected by passing through mounting hole with the bolt of third fixation hole；On the bolt-type connector
Straight line connector insertion sleeve type connecting piece on straight line connecting pin on inserting groove and by passing through the second fixation hole and the
The bolt of four fixation holes is fixedly connected；The quantity of the arc part, sleeve type connecting piece and bolt-type connector is equal, multiple
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 removable link mechanism includes electric pushrod, shaft coupling, connection arrangement, upper fixed ring, lower fixed ring, fine adjustment type
The lower end of connector, spiral connecting rod, universal joint, pin type connector and sleeve connector, the spiral connecting rod is logical
It crosses universal joint and connects a combined type fixed ring, upper fixed ring, fine adjustment type connector and lower fixed ring are successively sleeved on spirally
The upper end of connecting rod, and fine adjustment type connector is realized by the positioning of upper fixed ring and lower fixed ring and is determined in spiral connecting rod
Position；The along the circumferential direction uniformly distributed mounting hole of a circle, the upper end connection of the spiral connecting rod are provided on fine adjustment type connector
The lower end of shaft coupling, the lower end of the upper end connection electric pushrod of shaft coupling, the upper end of the electric pushrod connects connection arrangement
Lower end；The upper end of the connection arrangement is universal joint connecting pin, and the universal joint connecting pin of connection arrangement passes through universal joint
Another combined type fixed ring is connected, protrusion, the column at left and right sides of bilateral connector are in the form of a column at left and right sides of connection arrangement
It is provided with threaded hole on the end face of shape protrusion, the bottom of connection arrangement is provided with push rod fixing groove, the two sides of push rod fixing groove
The fixation hole for fixing electric pushrod upper end is provided on face, the upper end of electric pushrod is protruded into push rod fixing groove and by wearing
The bolt for crossing fixation hole is fixedly connected；The two sides of each connection arrangement are respectively connected with a sleeve connector, sleeve connector
Upper end be bolted on connection arrangement two sides column protrusion threaded hole at, the lower end of sleeve connector is provided with
The upper end of inserting groove, pin type connector is plugged in the inserting groove of sleeve connector, the lower end of sleeve connector and pin type
The upper end of connector is provided with a column fixation hole, and the lower end of sleeve connector and the upper end of pin type connector are solid by passing through
The bolt for determining hole is fixed；The total length of sleeve connector and pin type connector by bolt pass through fixation hole position come
It determines, guarantees that the lower end of pin type connector can be bolted with fine adjustment type connector in positioning.
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 adjusting post and adjusting slider are interference fitted.
Further, the diameter of the steel needle sleeve is slightly less than the width of straight-line groove on rectangle adjustable side.
Further, the interior spiral shell matched with the external screw thread on the locking bolt of front and back is provided on the steel needle locking hole
Line, the through-hole diameter in cylindrical projection on adjusting slider are slightly larger than the maximum outside diameter of front and back locking bolt.
Further, the upper end of fixed ring and lower fixed ring and spiral connecting rod passes through clearance fit, on
Screwed location hole is provided on the side of fixed ring and lower fixed ring, positioning bolt passes through location hole for upper fixed ring
It is fixed in spiral connecting rod with lower fixed ring.
Further, the spiral connecting rod is telescopic rod, and spiral connecting rod lower end is screw-casing, spiral to connect
Bar upper end is the screw rod with nut, and the lower end of screw rod is inserted into screw-casing, and rotary nut can realize spiral connecting rod
Elongation and shortening.
Further, the top of screw rod is screwed straight-bar, upper fixed ring and lower fixed ring is equipped with and straight-bar
The internal screw thread that matches of external screw thread, upper fixed ring and lower fixed ring realize upper fixed ring by the cooperation of external screw thread and internal screw thread
With the adjustment of lower fixed ring position on straight-bar.
Further, the lower end of the pin type connector is provided with upright shoulders, is provided with fixation hole on upright shoulders,
Pin type connector is fixedly connected by passing through the fixation hole on upright shoulders with the bolt of fine adjustment type connector upper installing hole.
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, fine tuning fixation may be implemented in the present invention, provides guiding of threading a needle, the accurate of the clinical reduction of the fracture not only can be improved
Property and safety, and mitigate clinician operation strength, greatly improve the success rate of operation.
7, removable link mechanism of the invention can both be driven by electric pushrod and bar length is adjusted, and can also pass through spiral shell
Adjustment length is revolved, can also easily be dismantled after the completion of motor is adjusted；In clinical operation, in order to realize proximal loop and
It is quickly connected between distal loop, manual fine-tuning can be realized by screw thread pair；In order to realize quick accurate positioning, Ke Yitong
Motor control electric pushrod is crossed to be adjusted；It is tediously long due to the six roots of sensation electric pushrod route after the completion of clinic is adjusted, and quality
It is too big, it can dramatically influence the life of patient.
8, the present invention provides the designs of detachable electric pushrod, and first substitution attachment device is bolted in straight line
The both ends of push rod keep two-end-point position not change, then remove to electric pushrod, are replaced using the screw device of substitution
Generation.
Detailed description of the invention
Fig. 1 is that a kind of whole use state of the adjustable orthopedic external fixing rack of bone of the removable digitlization of motor of the present invention is shown
It is intended to.
Fig. 2 is the whole use state diagram when present invention uses electric pushrod.
Fig. 3 is the whole use state diagram when present invention does not use electric pushrod.
Fig. 4 is the overall mechanism schematic diagram of combined type fixed ring of the present invention.
Fig. 5 is the structural schematic diagram of bolt-type connector in combined type fixed ring of the present invention.
Fig. 6 is the structural schematic diagram of combined type fixed ring middle sleeve formula connector of the present invention.
Fig. 7 be step-less adjustment of the present invention thread a needle clamp strap steel needle when overall structure diagram.
Fig. 8 is that step-less adjustment of the present invention is threaded a needle the structural schematic diagram of adjusting post 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 that step-less adjustment of the present invention is threaded a needle the structural schematic diagram of adjusting slider in fixture.
Figure 11 is the structural schematic diagram of the removable link mechanism of the present invention.
Figure 12 is the structural schematic diagram of spiral connecting rod of the invention.
In figure, 1- combined type fixed ring, the removable link mechanism of 2-, 3- step-less adjustment are threaded a needle the telescopic connection of fixture, 5-
Part, 6- arc part, 7-bolt-type connectors, 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- adjusting post, 19- steel needle, 20- steel needle sleeve, 21- fixture nut, 22- or more locking bolt, 23- locks
Only bolt, 24- adjusting slider, 25- rectangle adjustable side, 26- column installation end, 27- straight-line groove, 28- sleeve mounting hole, 29- circle
In column protrusion, 30- sliding block locking hole, 31- steel needle locking hole, 35- connection arrangement, 36- electric pushrod, 37- shaft coupling, 38-
Fixed ring, the connection of 43- pin type under fixed ring, 39- fine adjustment type connector, the spiral connecting rod of 40-, 41- universal joint, 42--
Part, 44- sleeve connector, 45- screw rod, 46- screw-casing, 47- screw-cap.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings:
As shown in Fig. 1 ~ 3, a kind of adjustable orthopedic external fixing rack of bone of the digitlization that motor is removable, including combined type fixed ring 1,
Removable link mechanism 2 and step-less adjustment are 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 is connected by the removable link mechanism 2 of the six roots of sensation, and the fixture 3 of threading a needle of the step-less adjustment for clamping steel needle 19 is solid
It is scheduled in combined type fixed ring 1, multiple step-less adjustments are threaded a needle after fixture 3 is fixed in combined type fixed ring 1, stepless using these
It adjusts the steel needle 19 on fixture 3 of threading a needle and penetrates in the bone of patient that realize that bone is adjusted in the removable digitlization of motor orthopedic outer solid
Determine the fixation of frame.
As shown in Fig. 7 ~ 10, the step-less adjustment thread a needle fixture 3 include adjusting post 18, steel needle sleeve 20, fixture nut
21, upper and lower locking bolt 22, front and back locking bolt 23 and adjusting slider 24, the adjusting post 18 include superposed rectangle
Adjustable side 25 and column installation end 26 positioned at lower part, the two of them of the rectangle adjustable side 25 are provided on opposite end face
Perforative straight-line groove 27；The upper end of the column installation end 26 is fixed on the bottom of rectangle adjustable side 25, column installation end 26
Lower part is fixed on exterior I lizarov external fixator or Taylor's skeleton by fixture nut 21；It is set on the adjusting slider 24
It is equipped with the square hole matched with the rectangle adjustable side 25 of adjusting post 18, adjusting slider 24 is sleeved on adjusting post 18 by square hole
Rectangle adjustable side 25 on and slide up and down along rectangle adjustable side 25, be provided with sliding block on a side of adjusting slider 24
It is provided with the screw thread matched on locking hole 30, sliding block locking hole 30 and upper and lower locking bolt 22, upper and lower locking bolt 22 passes through
Adjusting slider 24 is fixed on the rectangle adjustable side 25 of adjusting post 18 by the sliding block locking hole 30 on adjusting slider 24；It is described
Perforative sleeve mounting hole is provided on two sides adjacent with the side for being provided with sliding block locking hole 30 on adjusting slider 24
28, cylindrical projection 29 is provided on the side where one of sleeve mounting hole 28, is provided in cylindrical projection 29 and sleeve
The consistent perforative through-hole in 28 aperture of mounting hole, steel needle sleeve 20 sequentially pass through sleeve mounting hole 28, tune on adjusting slider 24
Save the through-hole in the cylindrical projection 29 on the straight-line groove 27 and adjusting slider 24 on column 18；On the periphery of cylindrical projection 29 also
It is provided with the steel needle locking hole 31 being connected with the through-hole inside cylindrical projection 29, is provided on steel needle sleeve 20 and steel needle locking
The corresponding circular hole in 31 position of hole；Front and back locking bolt 23 passes through steel needle locking hole 31 and circular hole for steel needle 19 and steel needle sleeve 20
It is fixed on adjusting slider 24.
The adjusting post 18 is interference fitted with adjusting slider 24.The diameter of the steel needle sleeve 20 is slightly less than rectangle adjusting
The width of straight-line groove on end 25.
It is provided with the internal screw thread matched with the external screw thread on front and back locking bolt 23 on the steel needle locking hole 31, adjusts
The through-hole diameter in cylindrical projection 29 on sliding block 24 is slightly larger than the maximum outside diameter of front and back locking bolt 23.
After doctor determines 19 installation site of steel needle, is analyzed by calculating, determine the installation site of fixture, adjust angle
It is mounted in combined type fixed ring by the fixture nut 21 afterwards, the position of about 19 steel needle is adjusted by adjusting slider 24,
It determines and fixation is tightened by upper and lower locking bolt 22 behind position, steel needle 19 penetrates patients with fractures appropriate location by steel needle sleeve 20
It is installed, steel needle sleeve 20 provides the guiding role of steel needle installation, adjusts 19 front and back of steel needle by front and back locking bolt 23
Fixation is tightened after determining position in position.
As shown in Fig. 4 ~ 6, 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 11 ~ 12, the removable link mechanism 2 includes electric pushrod 36, shaft coupling 37, connection arrangement
35, upper fixed ring 38, lower fixed ring 42, fine adjustment type connector 39, spiral connecting rod 40, universal joint 41, pin type connector
43 and sleeve connector 44, the lower end of the spiral connecting rod 40 connects a combined type fixed ring by universal joint 41, on
Fixed ring 38, fine adjustment type connector 39 and lower fixed ring 42 are successively sleeved on the upper end of spiral connecting rod 40, and fine adjustment type connects
Fitting 39 realizes the positioning in spiral connecting rod 40 by the positioning of upper fixed ring 38 and lower fixed ring 42；Fine adjustment type connector
The along the circumferential direction uniformly distributed mounting hole of a circle is provided on 39, the upper end of the spiral connecting rod 40 connects under shaft coupling 37
End, the lower end of the upper end connection electric pushrod 36 of shaft coupling 37, the upper end connection connection arrangement 35 of the electric pushrod 36
Lower end；The upper end of the connection arrangement 35 is 41 connecting pin of universal joint, and 41 connecting pin of universal joint of connection arrangement 35 passes through
Universal joint 41 connects another combined type fixed ring, and the left and right sides of connection arrangement 35 is in the form of a column protrusion, and bilateral connector is left
It is provided with threaded hole on the end face of the column protrusion of right two sides, the bottom of connection arrangement 35 is provided with push rod fixing groove, push rod
The fixation hole for fixing 36 upper end of electric pushrod is provided on the two sides of fixing groove, push rod is protruded into the upper end of electric pushrod 36
In fixing groove and the bolt by passing through fixation hole is fixedly connected；The two sides of each connection arrangement 35 are respectively connected with a sleeve
Connector 44, the upper end of sleeve connector 44 are bolted on the threaded hole of the column protrusion of 35 two sides of connection arrangement
Place, the lower end of sleeve connector 44 are provided with inserting groove, and the upper end of pin type connector 43 is plugged on inserting for sleeve connector 44
In access slot, the lower end of sleeve connector 44 and the upper end of pin type connector 43 are provided with a column fixation hole, sleeve connector
44 lower end and the upper end of pin type connector 43 are fixed by passing through the bolt of fixation hole；Sleeve connector 44 and pin shaft
The total length of formula connector 43 passes through the position of fixation hole by bolt to determine, guarantees pin type connector 43 in positioning
Lower end can be bolted with fine adjustment type connector 39.
The upper end of fixed ring 38 and lower fixed ring 42 and spiral connecting rod 40 passes through clearance fit, upper fixation
Screwed location hole is provided on the side of ring 38 and lower fixed ring 42, positioning bolt passes through location hole for upper fixed ring
38 and lower fixed ring 42 be fixed in spiral connecting rod 40.
The spiral connecting rod 40 is telescopic rod, and spiral 40 lower end of connecting rod is screw-casing 46, spiral connecting rod
40 upper ends are the screw rod 45 with nut, and the lower end of screw rod 45 is inserted into screw-casing 46, and rotary nut can be realized spirally
The elongation and shortening of connecting rod 40.
The top of screw rod 45 is screwed straight-bar, and upper fixed ring 38 and lower fixed ring 42 are equipped with outer with straight-bar
The internal screw thread that screw thread matches, upper fixed ring 38 and lower fixed ring 42 realize upper fixed ring by the cooperation of external screw thread and internal screw thread
38 and the lower position on straight-bar of fixed ring 42 adjustment.
The lower end of the pin type connector 43 is provided with upright shoulders, and fixation hole, pin type are provided on upright shoulders
Connector 43 is fixedly connected by passing through the fixation hole on upright shoulders with the bolt of 39 upper installing hole of fine adjustment type connector.
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. the orthopedic external fixing rack of bone is adjusted in a kind of digitlization that motor is removable, it is characterised in that: including combined type fixed ring
(1), removable link mechanism (2) and step-less adjustment are threaded a needle fixture (3), and the combined type fixed ring (1) is provided with symmetrical above and below
A pair of setting, combined type fixed ring (1) are connected by the removable link mechanism of the six roots of sensation (2), are used for the nothing of clamping steel needle (19)
Grade adjusts fixture (3) of threading a needle and is fixed on combined type fixed ring (1)；
The step-less adjustment thread a needle fixture (3) include adjusting post (18), steel needle sleeve (20), fixture nut (21), up and down lock
Only bolt (22), front and back locking bolt (23) and adjusting slider (24), the adjusting post (18) includes superposed rectangle
Adjustable side (25) and column installation end (26) positioned at lower part, on the opposite end face of the two of them of the rectangle adjustable side (25)
It is provided with perforative straight-line groove (27)；The upper end of the column installation end (26) is fixed on the bottom of rectangle adjustable side (25), column
The lower part of shape installation end (26) is fixed on exterior I lizarov external fixator or Taylor's skeleton by fixture nut (21)；Institute
State the square hole for being provided on adjusting slider (24) and matching with the rectangle adjustable side (25) of adjusting post (18), adjusting slider (24)
It is sleeved on the rectangle adjustable side (25) of adjusting post (18) by square hole and is slided up and down along rectangle adjustable side (25), adjusted
It saves and is provided with sliding block locking hole (30) on a side of sliding block (24), on sliding block locking hole (30) and upper and lower locking bolt (22)
It is provided with the screw thread matched, upper and lower locking bolt (22), which passes through the sliding block locking hole (30) on adjusting slider (24), will adjust cunning
Block (24) is fixed on the rectangle adjustable side (25) of adjusting post (18)；On the adjusting slider (24) be provided with sliding block lock
Only perforative sleeve mounting hole (28), one of sleeve mounting hole are provided on two adjacent sides of the side of hole (30)
(28) it is provided with cylindrical projection (29), is provided in cylindrical projection (29) and sleeve mounting hole (28) aperture one on the side where
The perforative through-hole caused, steel needle sleeve (20) sequentially pass through sleeve mounting hole (28), adjusting post on adjusting slider (24)
(18) through-hole in the cylindrical projection (29) on straight-line groove (27) and adjusting slider (24) on；The periphery of cylindrical projection (29)
On be additionally provided with the steel needle locking hole (31) that the through-hole internal with cylindrical projection (29) is connected, steel needle sleeve is provided on (20)
Circular hole corresponding with steel needle locking hole (31) position；Front and back locking bolt (23) passes through steel needle locking hole (31) and circular hole for steel
Needle (19) and steel needle sleeve (20) are fixed on adjusting slider (24)；
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 removable link mechanism (2) includes electric pushrod (36), shaft coupling (37), connection arrangement (35), upper fixed ring
(38), lower fixed ring (42), fine adjustment type connector (39), spiral connecting rod (40), universal joint (41), pin type connector
(43) and sleeve connector (44), the lower end of the spiral connecting rod (40) connect a combined type gas-liquid-solid by universal joint (41)
Determine ring, upper fixed ring (38), fine adjustment type connector (39) and lower fixed ring (42) are successively sleeved on spiral connecting rod (40)
Upper end, and fine adjustment type connector (39) is realized by the positioning of upper fixed ring (38) and lower fixed ring (42) in spiral connecting rod
(40) positioning；The along the circumferential direction uniformly distributed mounting hole of a circle, the spiral connection are provided on fine adjustment type connector (39)
The lower end of upper end connection shaft coupling (37) of bar (40), the lower end of upper end connection electric pushrod (36) of shaft coupling (37) are described
The lower end of upper end connection connection arrangement (35) of electric pushrod (36)；The upper end of the connection arrangement (35) is universal joint
(41) connecting pin, universal joint (41) connecting pin of connection arrangement (35) connect another combined type by universal joint (41) and fix
Ring is in the form of a column protrusion at left and right sides of connection arrangement (35), sets on the end face of the column protrusion at left and right sides of bilateral connector
It is equipped with threaded hole, the bottom of connection arrangement (35) is provided with push rod fixing groove, is arranged on the two sides of push rod fixing groove useful
Fixation hole in fixed electric pushrod (36) upper end, the upper end of electric pushrod (36) are protruded into push rod fixing groove and solid by passing through
The bolt for determining hole is fixedly connected；The two sides of each connection arrangement (35) are respectively connected with a sleeve connector (44), and sleeve connects
The upper end of fitting (44) is bolted at the threaded hole of column protrusion of connection arrangement (35) two sides, sleeve connector
(44) lower end is provided with inserting groove, and the upper end of pin type connector (43) is plugged in the inserting groove of sleeve connector (44),
The lower end of sleeve connector (44) and the upper end of pin type connector (43) are provided with a column fixation hole, sleeve connector (44)
Lower end and pin type connector (43) upper end by pass through fixation hole bolt be fixed；Sleeve connector (44) and pin
The total length of shaft type connector (43) passes through the position of fixation hole by bolt to determine, guarantees pin type connector in positioning
(43) lower end can be bolted with fine adjustment type connector (39).
2. the orthopedic external fixing rack of bone is adjusted in a kind of removable digitlization of motor according to claim 1, feature exists
In: 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) are equal.
3. the orthopedic external fixing rack of bone is adjusted in a kind of removable digitlization of motor according to claim 1, feature exists
In: there are three the arc part (6), sleeve type connecting piece (5) and bolt-type connector (7) are respectively provided with.
4. the orthopedic external fixing rack of bone is adjusted in a kind of removable digitlization of motor according to claim 1, feature exists
In: mounting hole (8) equidistantly distributed on arc part (6), the mounting hole (8) at arc part (6) both ends and telescopic connection
Part (5) and bolt-type connector (7) are bolted to connection, and the mounting hole (8) in the middle part of arc part (6) is for connecting spicule
Fixed frame.
5. the orthopedic external fixing rack of bone is adjusted in a kind of removable digitlization of motor according to claim 1, feature exists
In: the length of the straight line connector (10) of the bolt-type connector (7) is longer than the straight line connecting pin of sleeve type connecting piece (5)
(14) length is provided at least six the 4th fixation holes (12), sleeve on the straight line connector (10) of bolt-type connector (7)
There are two the second fixation hole (17) for straight line connecting pin (14) setting of formula connector (5).
6. the orthopedic external fixing rack of bone is adjusted in a kind of removable digitlization of motor according to claim 1, feature exists
In: it is provided with the internal screw thread matched with the external screw thread on front and back locking bolt (23) on the steel needle locking hole (31), is adjusted
The through-hole diameter in cylindrical projection (29) on sliding block (24) is slightly larger than the maximum outside diameter of front and back locking bolt (23).
7. the orthopedic external fixing rack of bone is adjusted in a kind of removable digitlization of motor according to claim 1, feature exists
In: the upper end of fixed ring (38) and lower fixed ring (42) and spiral connecting rod (40) passes through clearance fit, upper solid
Determine to be provided with screwed location hole on the side of ring (38) and lower fixed ring (42), positioning bolt passes through location hole will be upper
Fixed ring (38) and lower fixed ring (42) are fixed on spiral connecting rod (40).
8. the orthopedic external fixing rack of bone is adjusted in a kind of removable digitlization of motor according to claim 1, feature exists
In: the spiral connecting rod (40) is telescopic rod, and spiral connecting rod (40) lower end is screw-casing (46), spiral connecting rod
(40) upper end is the screw rod (45) with nut, and lower end insertion screw-casing (46) of screw rod (45) is interior, and rotary nut can be real
The now elongation and shortening of spiral connecting rod (40).
9. the orthopedic external fixing rack of bone is adjusted in a kind of removable digitlization of motor according to claim 1, feature exists
In: the top of screw rod (45) is screwed straight-bar, and upper fixed ring (38) and lower fixed ring (42) are equipped with and straight-bar
The internal screw thread that external screw thread matches, upper fixed ring (38) and lower fixed ring (42) are realized by the cooperation of external screw thread and internal screw thread
The adjustment of fixed ring (38) and lower fixed ring (42) position on straight-bar.
10. the orthopedic external fixing rack of bone is adjusted in a kind of removable digitlization of motor according to claim 1, feature exists
In: the lower end of the pin type connector (43) is provided with upright shoulders, and fixation hole, pin type connection are provided on upright shoulders
Part (43) is fixedly connected by passing through the fixation hole on upright shoulders with the bolt of fine adjustment type connector (39) upper installing hole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910296787.3A CN110269671B (en) | 2019-04-14 | 2019-04-14 | Digital adjustable bone orthopedic external fixation frame with detachable motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910296787.3A CN110269671B (en) | 2019-04-14 | 2019-04-14 | Digital adjustable bone orthopedic external fixation frame with detachable motor |
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| CN110269671B CN110269671B (en) | 2020-09-08 |
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|---|---|---|---|---|
| CN112255101A (en) * | 2020-11-06 | 2021-01-22 | 浙江工业大学 | External fixing frame with steel needle fixing device capable of detecting axial stress condition of skeleton |
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| CN110269671B (en) | 2020-09-08 |
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