CN101785692A - Adjustable pelvic fracture external fixator - Google Patents
Adjustable pelvic fracture external fixator Download PDFInfo
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- CN101785692A CN101785692A CN201010101898A CN201010101898A CN101785692A CN 101785692 A CN101785692 A CN 101785692A CN 201010101898 A CN201010101898 A CN 201010101898A CN 201010101898 A CN201010101898 A CN 201010101898A CN 101785692 A CN101785692 A CN 101785692A
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Abstract
The invention relates to an adjustable pelvic fracture external fixator. The adjustable pelvic fracture external fixator consists of an upper pressurizing structure, a plane boss umbrella-type insection adjusting clip, an adjusting lock structure, a locking pin structure and a stable structure. The upper pressurizing structure consists of an upper two-end threaded pipe, a front-to-back U-shaped connecting block, an internal thread rotating wheel, a ring threaded rod, a cylindrical head threaded rod, a thin round bar and a hex socket cylindrical nut; the stable structure consists of a folding stable structure and a T-shaped lock sleeve stable structure; the folding stable structure consists of a folding arc semi-ring, a folding insection semi-ring with the umbrella-type insection, an insection head U-shaped head tube, an L-shaped rod piece, and another locking pin structure; and the T-shaped lock sleeve stable structure consists of a T-shaped lock sleeve, an insection pressing bowl, another insection head U-shaped head tube, the L-shaped rod piece and the another locking pin structure. Aiming at physiology arc crown structural characteristics of the pelvic, the adjustable pelvic fracture external fixator can be adjusted, and pressurized, enables needles to be threaded at a plurality of angles, has flexible and adjustable stability for connection of the pelvic fracture, and provides a convenient fixing condition for rescuing of pelvic trauma.
Description
Technical field
The present invention relates to the orthopedic medical device technical field, particularly a kind of adjustable pelvic fracture external fixator.
Background technology
Fracture of pelvis mostly is the high-energy wound, often merges blood vessel, nerve and visceral injury, and fracture of pelvis accounts for the 1-2% of whole body fracture, and the pelvis unstable fracture merges the mortality rate of massive hemorrhage between 20-50%.Reported in literature is arranged, and wound is used expopexy in early days, makes recovery phase mortality rate drop to 8% from 22%.The external pelvis-repositioning fixer of clinical practice at present, for example one-sided multifunctional external fixation apparatus combination type is external fixator such as device, AO combination type pelvis support fixedly, mechanical structure with pelvis on the adjustment function exists difference, its flexibility ratio has significant limitation, it is more not only to thread a needle, operation is inconvenient, and brings many difficulties to functional exercise, therefore need be improved.A kind of purl structure with T type lock tube is provided among utility model patent 200520089428.4 and the 200720013563.X, has pressed bowl, purl gland to constitute by locking screw, T type lock tube, lock tube.This lock purl structure has lot of advantages, also can be used for various external fixators.
Summary of the invention
The purpose of this invention is to provide a kind of easy to use and can guarantee to receive the adjustable pelvic fracture external fixator of better surgical effect, so that reduce iatrogenic injury as far as possible, shorten operating time, alleviate the misery that patient will bear, make operation fast, finish safely.
The object of the present invention is achieved like this:
Adjustable pelvic fracture external fixator of the present invention, it is characterized in that by top pressure structure, the adjustment folder that swing connects is made at the two ends of top pressure structure therewith, be connected and the middle part hollow pipe parallel with these two adjustment folders by adjusting latch-up structure with top pressure structure, adjusting purl structure that the lower end of folder is connected and the rock-steady structure that is located on this middle part hollow pipe therewith forms
Described adjustment folder is plane boss umbrella shape groove adjustment folder, the groove lock tube screw rod that described adjustment latch-up structure is meshed by the umbrella shape groove of the folder of plane boss umbrella shape groove adjustment therewith, the lock tube that socket-connects of the spiro rod section of groove lock tube screw rod one side is pressed bowl therewith, the interior hexangular cylindrical nut that is meshed of spiro rod section therewith, be sleeved on the spring on this groove lock tube screw rod opposite side round rod segment, the wing nut of groove lock tube screw rod opposite side threaded engagement is formed therewith
The convex square station upright opening axle that described purl structure is connected by the lower end with described plane boss umbrella shape groove adjustment folder, the friction tight T shape of the upright opening of convex square station upright opening axle bar therewith, be located at the groove pin folder at the cross bar two ends of this T shape bar respectively, the purl post that is complementary with the pin folder hole of this two groove pins folder and with boss that groove that these two groove pins press from both sides is meshed in the hexagonal screw rod form
Described top pressure structure is by the both upper ends thereof corrugated tubing, one end of this both upper ends thereof corrugated tubing is connected with described adjustment folder, the positive and negative U type contiguous block that is connected of the other end of both upper ends thereof corrugated tubing therewith, pack into female thread runner in the forward U type opening of this positive and negative U type contiguous block, pack into suspension ring screw rod in the reverse U type opening of this positive and negative U type contiguous block, the socket cap screw rod that is complementary of the female thread of female thread runner therewith, be located at the pipe plug in the termination of described both upper ends thereof corrugated tubing, the interior hexangular cylindrical nut that is located at the thin round bar in this pipe plug and is meshed with described suspension ring screw flight is formed
Described rock-steady structure is made up of folding rock-steady structure that is connected with described middle part hollow pipe and T shape lock tube rock-steady structure, described folding rock-steady structure is by folding arc semi-ring, the folding groove semi-ring that is provided with the umbrella shape groove that folding arc semi-ring is connected therewith, therewith the umbrella shape groove of folding groove semi-ring be meshed groove head U-shaped head pipe, the L shaped rod member that is connected of groove head U-shaped head pipe therewith, another purl structure that is located on this L shaped rod member is formed
Described T shape lock tube rock-steady structure is by T shape lock tube, therewith the groove of T shape lock tube phase suit press bowl and therewith groove press that bowl is meshed another groove head U-shaped head pipe, another L shaped rod member of being connected of groove head U-shaped head pipe therewith, the another purl structure that is located on this another L shaped rod member is formed.
The bottom of described plane boss umbrella shape groove adjustment folder is a square body, top is the prolate square body, interlude is provided with annular boss, be provided with shoulder hole in this interlude, described spring is packed in this shoulder hole, the boss plane of this annular boss is provided with the umbrella shape groove, be provided with bearings mounted shoulder hole in the upper end of this prolate square body, in the square body of described bottom, be provided with the vertical round counterbore that is slidingly matched with described T shape bar work, in the square body of this bottom, be provided with the side direction shoulder hole, this side direction shoulder hole and described convex square station upright opening axle are made matched in clearance
Described groove lock tube screw rod is made of mediate cylindrical section, the thin cylindrical screw section of a side and opposite side fine thread bar section, be provided with the round tube hole that is slidingly matched with described middle part hollow pipe work in this shell portion, one end of this shell portion is provided with boss, the end face of this boss is provided with the umbrella shape groove that is meshed with the umbrella shape groove of described annular boss, the spring of the horizontal shoulder hole at the umbrella shape groove position of plane boss umbrella shape groove adjustment folder and the aperture section of horizontal shoulder hole and wing nut coupling.Loosening wing nut, the active force of spring is separated from the umbrella shape groove of engagement, can adjust the required angle position of umbrella shape groove adjustment folder this moment, tightens wing nut then, and the umbrella shape groove is meshing with each other, and reaches the firm stable combination.
Described convex square station upright opening axle is made of shell portion and the short cylinder section that the end face that continues successively is provided with square boss, be provided with vertical round tube hole in this shell portion, this vertical round tube hole and described T shape bar are slidingly matched, and are provided with the axial thread hole that is meshed with hexagonal screw rod in the described boss in this short cylinder section.
The external diameter of described T shape bar rolls straight burr; Described groove pin folder is made of semicircular arc section and flat rectangular body section; This semi arch body section center is provided with the radially little round tube hole of doing to be slidingly matched with described T shape bar and reaches therewith radially little round tube hole opening that communicate, that connect this flat rectangular body section; This flat rectangular body section is provided with the big round tube hole that is slidingly matched with described purl post work; The end face of this flat rectangular body section one side is provided with annular boss; The anchor ring of this annular boss is provided with the umbrella shape groove
Described purl post is made of external end head boss section, middle circle through hole section and inner axial thread counterbore section, be provided with the circular radial through hole hereinto in the round tube hole section, this circular radial through hole and threaded rod are made matched in clearance, are provided with the axial thread counterbore that is meshed with hexagonal screw rod in the boss in this inner axial thread counterbore section.Tighten hexagonal screw rod in the boss, make the purl post produce axial displacement, the screw thread shank just firmly is locked on the umbrella shape groove face of groove pin folder, and the axially open of groove pin folder also shrinks thereupon, and T shape bar also simultaneously firmly is locked in the groove pin and presss from both sides in the radially little round tube hole of a side.
Described positive and negative U type contiguous block is the deltiod body that is provided with axial round tube hole, this axial round tube hole and socket cap screw rod are made matched in clearance, oppositely be provided with the round tube hole of making matched in clearance with the suspension ring screw rod in the U type open bottom, described forward U type opening and female thread runner are made matched in clearance, in the side short cylindrical of this forward U type opening, be provided with the screwed hole that communicates with described axial round tube hole, this screwed hole and both upper ends thereof threaded rod are complementary
Described female thread runner is oblate cylinder, and the external diameter of this oblate cylinder rolls straight burr, and this oblate cylinder is provided with along the equally distributed radial screw bore of circumference, and the external screw thread of this radial screw bore and socket cap screw rod is complementary,
One side of described suspension ring screw rod is oblate annular solid, and opposite side is a threaded rod, is provided with the round tube hole of making matched in clearance with the socket cap screw rod in the plane of this oblate annular solid,
One end of described both upper ends thereof corrugated tubing is provided with female thread, and the other end is provided with external screw thread, and its internal diameter cooperates with socket cap screw flight crest clearance,
Be provided with in the end short cylindrical section of described socket cap screw rod and the thin friction tight radially small sircle hole of round bar,
Described pipe plug is the short cylindrical screw rod, is provided with and the thin friction tight radially small sircle hole of round bar,
Described thin round bar is the thin round bar of step, in its thick section insertion bearing.
The socket cap screw rod enters in the endoporus of both upper ends thereof threaded rod to the ring portion endoporus that circular hole entered and passed the suspension ring screw rod is screwed into the female thread runner of forward U type opening of positive and negative U type contiguous block from the reverse U type open side axon of positive and negative U type contiguous block again.Rotate the female thread runner, the socket cap screw rod also enters thereupon rotating or withdraws from, and drives the interior thin round bar of termination bearing of plane boss umbrella shape groove adjustment folder, makes it to reach the purpose of adjusting pressurization.Twist the cylinder hexagonal socket nut on the suspension ring screw rod, make the suspension ring screw rod produce displacement, reach the purpose of firm socket cap screw rod.
Described folding arc ring is a folding paper semicircular arc plate body, makes matched in clearance at the interior semi arch and the hollow pipe of this semicircular arc plate body, is provided with round tube hole in the plate body section of this semicircular arc plate body,
Described folding groove ring is made of semicircular arc section and the rectangular body section that is provided with umbrella groove boss, this rectangular body section is connected as bolt with the plate body section and the described groove head U-shaped head pipe of described semicircular arc plate body respectively, the boss umbrella groove of this rectangular body section cooperates with the boss umbrella shape groove of described groove head U-shaped head pipe
Constituting of described groove head U-shaped head pipe by pipe body interlude, U-shaped opening rectangular body tube head section, the joint pipeline section that is provided with umbrella boss groove, this U-shaped opening rectangular body tube head section and described L shaped rod member be suit mutually, and the joint pipeline section of this boss umbrella groove is connected with the boss umbrella groove of described folding groove ring.Tighten the cylinder hexagonal socket nut of the suspension ring screw rod coupling in the U-shaped opening of packing into, make the suspension ring screw rod produce displacement, L shaped rod member is firmly pinned under its axial round tube hole interacts.Be provided with round tube hole in the U-shaped open bottom.
The termination of described T shape lock tube is the cylinder that is provided with boss, this cylindrical end is a micro screw, cover is loaded onto groove and is pressed bowl on this micro screw, the epimere groove of this micro screw cooperates with the cylinder hexagonal socket nut, this cylindrical middle part is provided with the circular radial through hole of making matched in clearance with described hollow pipe, and this cylindrical termination portion is provided with the axial round tube hole that circular radial through hole therewith communicates.
Groove presses the boss of bowl to be provided with the umbrella shape groove, and this umbrella shape groove is meshed with the umbrella groove of the groove head U-shaped head pipe of the described joint pipeline section that is provided with umbrella groove boss.Tighten the cylinder hexagonal socket nut, the umbrella shape groove secure engagement on the round ring boss plane of umbrella shape groove on the round ring boss plane of groove head U-shaped head pipe and groove pressure bowl, groove presses bowl generation axial displacement also to be clamped on the hollow pipe simultaneously thereupon.The socket cap screw rod enters in the endoporus of both upper ends thereof threaded rod to the ring portion endoporus that circular hole entered and passed the suspension ring screw rod is screwed into the female thread runner of forward U type opening of positive and negative U type contiguous block from the reverse U type open side axon of positive and negative U type contiguous block again.Rotate the female thread runner, the socket cap screw rod also enters thereupon rotating or withdraws from, and drives the interior thin round bar of termination bearing of plane boss umbrella shape groove adjustment folder, makes it to reach the purpose of adjusting pressurization.Twist the cylinder hexagonal socket nut on the suspension ring screw rod, make the suspension ring screw rod produce displacement, reach the purpose of firm socket cap screw rod.
Described folding arc ring is a folding paper semicircular arc plate body, makes matched in clearance at the interior semi arch and the hollow pipe of this semicircular arc plate body, is provided with round tube hole in the plate body section of this semicircular arc plate body,
Described folding groove ring is made of semicircular arc section and the rectangular body section that is provided with umbrella groove boss, this rectangular body section is connected as bolt with the plate body section and the described groove head U-shaped head pipe of described semicircular arc plate body respectively, the umbrella groove boss of this rectangular body section is made the umbrella shape groove with described groove head U-shaped head pipe and is cooperated
Constituting of described groove head U-shaped head pipe by pipe body interlude, U-shaped opening rectangular body tube head section, the joint pipeline section that is provided with umbrella groove boss, this U-shaped opening rectangular body tube head section and described L shaped rod member be suit mutually, and the joint pipeline section of this umbrella groove boss is connected with described folding groove ring.Tighten the cylinder hexagonal socket nut in the U-shaped opening of packing into, L shaped rod member is firmly pinned under its axial round tube hole interacts.
Described L shaped rod member is L shaped round bar, has rolled straight burr on two round rod segments,
Advantage of the present invention is: the physiology arc at pelvis is envisioned for a vault construction, pelvis is the characteristics of flat-shaped irregular bone shape, adjustable pelvic fracture external fixator of the present invention is designed to a kind ofly can adjust, can pressurize again, the suitable multi-angle fixed holder of threading a needle, designed the purl structure of 43 kinds of different structure forms, between top pressure structure, adjustment folder, the rock-steady structure is intercoordination, can separately adjust flexibly again, be very easy to the operation of threading a needle, not only to Tile-B
1Open book bar sample fracture, Tile-B
2Close book bar sample fracture and have the stability of flexible adjustment, connection also has the stability of flexible adjustment to Tile-C type vertical judder fracture of pelvis, utilize the subtend pull strength that the both sides inside tractive of the ilium wing is fixed, hinder the outer backward top displacement of side half pelvis with elimination.Adjustable pelvic fracture external fixator of the present invention rescues for the pelvis wound and has created utmost point rigid condition easily.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of adjustment latch-up structure of the present invention.
Fig. 3 is the structural representation of purl structure of the present invention, and Fig. 3-1 is the side view of Fig. 3.
Fig. 4 is the structural representation of positive and negative U type contiguous block of the present invention.
Fig. 5 is the structural representation of folding rock-steady structure of the present invention.
Fig. 6 is the structural representation of another kind of rock-steady structure.
The specific embodiment
The embodiment given below in conjunction with accompanying drawing further specifies the specific embodiment of the present invention.
As shown in Figure 1 and Figure 2, adjustable pelvic fracture external fixator of the present invention, it is characterized in that by top pressure structure, the adjustment folder that swing connects is made at the two ends of top pressure structure therewith, be connected and the middle part hollow pipe 4 parallel with these two adjustment folders by adjusting latch-up structure with top pressure structure, adjusting purl structure that the lower end of folder is connected and the rock-steady structure that is located on this middle part hollow pipe 4 therewith forms
Described adjustment folder is plane boss umbrella shape groove adjustment folder 1, the groove lock tube screw rod 2 that described adjustment latch-up structure is meshed by the umbrella shape groove of the folder of plane boss umbrella shape groove adjustment therewith 1, the lock tube that socket-connects of the spiro rod section of groove lock tube screw rod 2 one sides is pressed bowl 3 therewith, the interior hexangular cylindrical nut 8 that is meshed of spiro rod section therewith, be sleeved on the spring 6 on these groove lock tube screw rod 2 opposite side round rod segments, the wing nut 7 of groove lock tube screw rod 2 opposite side threaded engagement is formed therewith
The convex square station upright opening axle 5 that described purl structure is connected by the lower end with described plane boss umbrella shape groove adjustment folder 1, the friction tight T shape of the upright opening of convex square station upright opening axle 5 bar 10 therewith, be located at the groove pin folder 11 at the cross bar two ends of this T shape bar 10 respectively, the purl post 12 that is complementary with the pin folder hole of this two groove pins folder 11 and with boss that groove that these two groove pins press from both sides is meshed in hexagonal screw rod 9 form
Described top pressure structure is by both upper ends thereof corrugated tubing 16, one end of this both upper ends thereof corrugated tubing 16 is connected with described adjustment folder, the positive and negative U type contiguous block 13 that is connected of the other end of both upper ends thereof corrugated tubing 16 therewith, pack into female thread runner 14 in the forward U type opening of this positive and negative U type contiguous block 13, pack into suspension ring screw rod 15 in the reverse U type opening of this positive and negative U type contiguous block 13, the socket cap screw rod 17 that is complementary of the female thread of female thread runner 14 therewith, be located at the pipe plug 18 in the termination of described both upper ends thereof corrugated tubing 16, be located at the thin round bar 19 in this pipe plug 18 and form with the interior hexangular cylindrical nut of the threaded engagement of described suspension ring screw rod 15
Described rock-steady structure is made up of the folding rock-steady structure that is connected with described middle part hollow pipe 4 and T shape lock tube rock-steady structure; Described folding rock-steady structure is by folding arc semi-ring 20; The folding groove semi-ring 21 that is provided with the umbrella shape groove that folding arc semi-ring 20 is connected therewith; Therewith the umbrella shape groove of folding groove semi-ring 21 be meshed groove head U-shaped head tube 22; The L shaped rod member 23 that is connected of groove head U-shaped head tube 22 therewith; Another purl structure that is located on this L shaped rod member 23 forms
Described T shape lock tube rock-steady structure is by T shape lock tube 24, therewith the groove of T shape lock tube 24 phase suits press bowl 25 and therewith groove press that bowl 25 is meshed another groove head U-shaped head pipe, another L shaped rod member of being connected of groove head U-shaped head pipe therewith, the another purl structure that is located on this another L shaped rod member is formed.
The bottom of described plane boss umbrella shape groove adjustment folder 1 is a square body, top is the prolate square body, interlude is provided with annular boss 26, be provided with shoulder hole 27 in this interlude, described spring 6 is packed in this shoulder hole 27, the boss plane of this annular boss 26 is provided with the umbrella shape groove, be provided with bearings mounted shoulder hole 30 in the upper end of this prolate square body, in the square body of described bottom, be provided with the vertical round counterbore 31 that is slidingly matched with described T shape bar work, in the square body of this bottom, be provided with side direction shoulder hole 33, this side direction shoulder hole 33 is made matched in clearance with described convex square station upright opening axle 5
Described groove lock tube screw rod 2 is made of mediate cylindrical section 36, the thin cylindrical screw section 29 of a side and opposite side fine thread bar section 28, be provided with the round tube hole 34 that is slidingly matched with described middle part hollow pipe 4 works in this shell portion 36, one end of this shell portion 36 is provided with boss 35, the end face of this boss 35 is provided with the umbrella shape groove 32 that is meshed with the umbrella shape groove of described annular boss 26, the spring 6 of the horizontal shoulder hole 27 at the umbrella shape groove position of plane boss umbrella shape groove adjustment folder 1 and the aperture section of horizontal shoulder hole 27 and wing nut 7 couplings.Loosening wing nut 7, the active force of spring 6 is separated from the umbrella shape groove of engagement, can adjust the required angle position of umbrella shape groove adjustment folder this moment, tightens wing nut 7 then, and the umbrella shape groove is meshing with each other, and reaches the firm stable combination.
As shown in Figure 1, described convex square station upright opening axle 5 is made of shell portion and the short cylinder section that the end face that continues successively is provided with square boss, be provided with vertical round tube hole in this shell portion, this vertical round tube hole and described T shape bar 10 are slidingly matched, and are provided with the axial thread hole 40 that is meshed with hexagonal screw rod 9 in the described boss in this short cylinder section.
As Fig. 3, shown in the 3-1, the external diameter of described T shape bar 10 rolls straight burr, described groove pin folder 11 is made of semicircular arc section and prolate square body section, this semi arch body section center be provided with described T shape bar 10 do the radially roundlet through hole 41 that is slidingly matched and therewith radially roundlet through hole 41 communicate, connect the opening 42 of this prolate square body section, this prolate square body section is provided with the big round tube hole 43 that is slidingly matched with described purl post 12 works, the end face of this prolate square body section one side is provided with annular boss 44, the anchor ring of this annular boss 44 is provided with umbrella shape groove 45
Described purl post 12 is made of external end head boss section, middle circle through hole section and inner axial thread counterbore section, be provided with circular radial through hole 46 hereinto in the round tube hole section, this circular radial through hole 46 is made matched in clearance with threaded rod 38, is provided with the axial thread counterbore 47 that is meshed with hexagonal screw rod 9 in the boss in this inner axial thread counterbore section.Tighten hexagonal screw rod 9 in the boss, make purl post 12 produce axial displacement, the screw thread shank just firmly is locked on the umbrella shape groove face of groove pin folder 11, and the axially open of groove pin folder 11 also shrinks thereupon, and T shape bar 10 also simultaneously firmly is locked in the groove pin and presss from both sides in the radially roundlet through hole 41 of 11 1 sides.
Such as Fig. 1, shown in Figure 4; Described positive and negative U-shaped contiguous block 13 is for being provided with the deltiod body of axial circular through hole 48; This axial circular through hole 48 is made matched in clearance with socket cap screw rod 17; Reverse U-shaped opening is provided with the round tube hole 51 of making matched in clearance with suspension ring screw rod 15 in 49 bottoms 50; The U-shaped opening 52 of described forward is made matched in clearance with internal thread runner 14; In the side short cylindrical 53 of the U-shaped opening 52 of this forward, be provided with the screwed hole 54 that communicates with described axial circular through hole 48; This screwed hole 54 is complementary with both upper ends thereof threaded rod 16
Described female thread runner 14 is oblate cylinder, and the external diameter of this oblate cylinder rolls straight burr, and this oblate cylinder is provided with along the equally distributed radial screw bore of circumference, and the external screw thread of this radial screw bore and socket cap screw rod 17 is complementary,
One side of described suspension ring screw rod 15 is oblate annular solid, and opposite side is a threaded rod, is provided with the round tube hole of making matched in clearance with socket cap screw rod 17 in the plane of this oblate annular solid,
One end of described both upper ends thereof corrugated tubing 16 is provided with female thread, and the other end is provided with external screw thread, the major diameter of thread matched in clearance of its internal diameter and socket cap screw rod 17,
Be provided with in the end short cylindrical section of described socket cap screw rod 17 and thin round bar 19 friction tight radially small sircle holes,
Described pipe plug 18 is the short cylindrical screw rod, is provided with and thin round bar 19 friction tight radially small sircle holes,
Described thin round bar 19 is the thin round bar of step, and its thick section is inserted in the described bearing.
The ring portion endoporus that socket cap screw rod 17 entered and passed suspension ring screw rod 15 from the axial circular hole of reverse U type opening 49 side surface bodies of positive and negative U type contiguous block 13 is screwed into the female thread runner 14 of forward U type opening of positive and negative U type contiguous block 13 and enters in the endoporus of both upper ends thereof threaded rod 16 again.Rotate female thread runner 14, socket cap screw rod 17 also enters thereupon rotating or withdraws from, and drives the interior thin round bar 19 of termination bearing of plane boss umbrella shape groove adjustment folder 1, makes it to reach the purpose of adjusting pressurization.Twist the cylinder hexagonal socket nut on the suspension ring screw rod 15, make suspension ring screw rod 15 produce displacement, reach the purpose of firm socket cap screw rod.
As Fig. 1, shown in Figure 5, described folding arc ring 20 is a folding paper semicircular arc plate body, makes matched in clearance at the interior semi arch 55 and the hollow pipe 4 of this semicircular arc plate body, is provided with round tube hole in the plate body section 56 of this semicircular arc plate body,
Described folding groove ring 21 is made of semicircular arc section 58 and the rectangular body section 60 that is provided with umbrella groove boss, this rectangular body section 60 is connected as bolt with the plate body section 56 of described semicircular arc plate body and described groove head U-shaped head pipe 22 respectively, the boss umbrella groove 61 of this rectangular body section 60 cooperates with the boss umbrella shape groove 62 of described groove head U-shaped head pipe 22, and the label 66,65 among the figure is a connecting bolt.
Constituting of described groove head U-shaped head pipe 22 by pipe body interlude 64, U-shaped opening rectangular body tube head section 63, the joint pipeline section that is provided with umbrella boss groove 62, this U-shaped opening rectangular body tube head section 63 and described L shaped rod member 23 be suit mutually, and the joint pipeline section of this boss umbrella groove is connected with the boss umbrella groove 61 of described folding groove ring 21.
As Fig. 1, shown in Figure 6, the termination of described T shape lock tube is the cylinder that is provided with boss, this cylindrical end is a micro screw 74, cover is loaded onto groove and is pressed bowl 73 on this micro screw 74, the epimere groove of this micro screw 74 cooperates with the cylinder hexagonal socket nut, this cylindrical middle part is provided with the circular radial through hole 71 of making matched in clearance with described hollow pipe 4, and this cylindrical termination portion 75 is provided with the axial round tube hole 72 that circular radial through hole 71 therewith communicates.
Groove presses the boss 76 of bowl 73 to be provided with the umbrella shape groove, and this umbrella shape groove is meshed with the umbrella groove 62 of the groove head U-shaped head pipe 22 of the described joint pipeline section that is provided with umbrella groove boss.Tighten the cylinder hexagonal socket nut, umbrella shape groove secure engagement on the round ring boss plane of umbrella shape groove on the round ring boss plane of groove head U-shaped head pipe 22 and groove pressure bowl 73, groove presses bowl 73 generation axial displacements also to be clamped on simultaneously on the hollow pipe 4 thereupon.
Be provided with round tube hole 70 in U-shaped opening 67 bottoms 69.Tighten the cylinder hexagonal socket nut in the U-shaped opening 67 of packing into, L shaped rod member 23 is firmly pinned under its axial round tube hole 68 interacts.
Adjustable pelvic fracture external fixator of the present invention can be envisioned for a vault construction for the physiology arc of pelvis, and pelvis is the characteristics of flat-shaped irregular bone shape, designs a kind ofly can adjust, can pressurize again, and suitable multi-angle is threaded a needle fixing, not only to Tile-B1Open book bar sample fracture, Tile-B2Close book bar sample fracture and have the stability of flexible adjustment, connection also has the stability of flexible adjustment to Tile-C type vertical judder pelvic fracture, utilize subtend tractive force that the both sides inside tractive of the ilium wing is fixed, hinder the backward outer top displacement of side half pelvis with elimination. Adjustable pelvic fracture external fixator of the present invention is that easily rigid condition of the utmost point has been created in the Pelvic trauma rescue.
Claims (6)
1. adjustable pelvic fracture external fixator, it is characterized in that by top pressure structure, the adjustment folder that swing connects is made at the two ends of top pressure structure therewith, be connected and the middle part hollow pipe parallel with these two adjustment folders by adjusting latch-up structure with top pressure structure, adjusting purl structure that the lower end of folder is connected and the rock-steady structure that is located on this middle part hollow pipe therewith forms
Described adjustment folder is plane boss umbrella shape groove adjustment folder, the groove lock tube screw rod that described adjustment latch-up structure is meshed by the umbrella shape groove of the folder of plane boss umbrella shape groove adjustment therewith, the lock tube that socket-connects of the spiro rod section of groove lock tube screw rod one side is pressed bowl therewith, the interior hexangular cylindrical nut that is meshed of spiro rod section therewith, be sleeved on the spring on this groove lock tube screw rod opposite side round rod segment, the wing nut of groove lock tube screw rod opposite side threaded engagement is formed therewith
The convex square station upright opening axle that described purl structure is connected by the lower end with described plane boss umbrella shape groove adjustment folder, the friction tight T shape of the upright opening of convex square station upright opening axle bar therewith, be located at the groove pin folder at the cross bar two ends of this T shape bar respectively, the purl post that is complementary with the pin folder hole of this two groove pins folder and with boss that groove that these two groove pins press from both sides is meshed in the hexagonal screw rod form
Described top pressure structure is by the both upper ends thereof corrugated tubing, one end of this both upper ends thereof corrugated tubing is connected with described adjustment folder, the positive and negative U type contiguous block that is connected of the other end of both upper ends thereof corrugated tubing therewith, pack into female thread runner in the forward U type opening of this positive and negative U type contiguous block, pack into suspension ring screw rod in the reverse U type opening of this positive and negative U type contiguous block, the socket cap screw rod that is complementary of the female thread of female thread runner therewith, be located at the pipe plug in the termination of described both upper ends thereof corrugated tubing, the interior hexangular cylindrical nut that is located at the thin round bar in this pipe plug and is meshed with described suspension ring screw flight is formed
Described rock-steady structure is made up of folding rock-steady structure that is connected with described middle part hollow pipe and T shape lock tube rock-steady structure, described folding rock-steady structure is by folding arc semi-ring, the folding groove semi-ring that is provided with the umbrella shape groove that folding arc semi-ring is connected therewith, therewith the umbrella shape groove of folding groove semi-ring be meshed groove head U-shaped head pipe, the L shaped rod member that is connected of groove head U-shaped head pipe therewith, another purl structure that is located on this L shaped rod member is formed
Described T shape lock tube rock-steady structure is by T shape lock tube, therewith the groove of T shape lock tube phase suit press bowl and therewith groove press that bowl is meshed another groove head U-shaped head pipe, another L shaped rod member of being connected of groove head U-shaped head pipe therewith, the another purl structure that is located on this another L shaped rod member is formed.
2. adjustable pelvic fracture external fixator according to claim 1, the bottom that it is characterized in that described plane boss umbrella shape groove adjustment folder is a square body, top is the prolate square body, interlude is provided with annular boss, be provided with shoulder hole in this interlude, described spring is packed in this shoulder hole, the boss plane of this annular boss is provided with the umbrella shape groove, be provided with bearings mounted shoulder hole in the upper end of this prolate square body, in the square body of described bottom, be provided with the vertical round counterbore that is slidingly matched with described T shape bar work, be provided with the side direction shoulder hole in the square body of this bottom, this side direction shoulder hole and described convex square station upright opening axle are made matched in clearance
Described groove lock tube screw rod is made of mediate cylindrical section, the thin cylindrical screw section of a side and opposite side fine thread bar section; Be provided with the round tube hole that is slidingly matched with described middle part hollow pipe work in this shell portion; One end of this shell portion is provided with boss; The end face of this boss is provided with the umbrella shape groove that is meshed with the umbrella shape groove of described annular boss; The spring of the horizontal shoulder hole at the umbrella shape groove position of plane boss umbrella shape groove adjustment folder and the aperture section of horizontal shoulder hole and wing nut coupling
Described convex square station upright opening axle is made of shell portion and the short cylinder section that the end face that continues successively is provided with square boss, be provided with vertical round tube hole in this shell portion, this vertical round tube hole and described T shape bar are slidingly matched, and are provided with the axial thread hole that is meshed with hexagonal screw rod in the described boss in this short cylinder section.
3. adjustable pelvic fracture external fixator according to claim 1, the external diameter that it is characterized in that described T shape bar rolls straight burr, described groove pin folder is made of semicircular arc section and prolate square body section, this semi arch body section center is provided with does with described T shape bar that the radially little round tube hole that is slidingly matched and radially little therewith round tube hole communicate, connect the opening of this prolate square body section, this prolate square body section is provided with the big round tube hole that is slidingly matched with described purl post work, the end face of this prolate square body section one side is provided with annular boss, the anchor ring of this annular boss is provided with the umbrella shape groove
Described purl post is made of external end head boss section, middle circle through hole section and inner axial thread counterbore section, be provided with the circular radial through hole hereinto in the round tube hole section, this circular radial through hole and threaded rod are made matched in clearance, are provided with the axial thread counterbore that is meshed with hexagonal screw rod in the boss in this inner axial thread counterbore section.
4. adjustable pelvic fracture external fixator according to claim 1; It is characterized in that described positive and negative U-shaped contiguous block is the deltiod body that is provided with the axial circular through hole; This axial circular through hole and socket cap screw rod are made matched in clearance; Be provided with the round tube hole of making matched in clearance with the suspension ring screw rod in the reverse U-shaped open bottom; The U-shaped opening of described forward and internal thread runner are made matched in clearance; In the side short cylindrical of the U-shaped opening of this forward, be provided with the screwed hole that communicates with described axial circular through hole; This screwed hole and both upper ends thereof threaded rod are complementary
Described female thread runner is oblate cylinder, and the external diameter of this oblate cylinder rolls straight burr, and this oblate cylinder is provided with along the equally distributed radial screw bore of circumference, and the external screw thread of this radial screw bore and socket cap screw rod is complementary,
One side of described suspension ring screw rod is oblate annular solid, and opposite side is a threaded rod, is provided with the round tube hole of making matched in clearance with the socket cap screw rod in the plane of this oblate annular solid,
One end of described both upper ends thereof corrugated tubing is provided with female thread, and the other end is provided with external screw thread, and its internal diameter cooperates with socket cap screw flight crest clearance,
Be provided with in the end short cylindrical section of described socket cap screw rod and the thin friction tight radially small sircle hole of round bar,
Described pipe plug is the short cylindrical screw rod, is provided with and the thin friction tight radially small sircle hole of round bar,
Described thin round bar is the thin round bar of step, and its thick section is inserted in the described bearing.
5. adjustable pelvic fracture external fixator according to claim 1, it is characterized in that described folding arc ring is a folding paper semicircular arc plate body, interior semi arch and hollow pipe at this semicircular arc plate body are made matched in clearance, in the plate body section of this semicircular arc plate body, be provided with round tube hole
Described folding groove ring is made of semicircular arc section and the rectangular body section that is provided with umbrella groove boss, this rectangular body section is connected as bolt with the plate body section and the described groove head U-shaped head pipe of described semicircular arc plate body respectively, the boss umbrella groove of this rectangular body section cooperates with the boss umbrella shape groove of described groove head U-shaped head pipe
Constituting of described groove head U-shaped head pipe by pipe body interlude, U-shaped opening rectangular body tube head section, the joint pipeline section that is provided with umbrella boss groove, this U-shaped opening rectangular body tube head section and described L shaped rod member be suit mutually, and the joint pipeline section of this boss umbrella groove is connected with the boss umbrella groove of described folding groove ring.
6. adjustable pelvic fracture external fixator according to claim 1, the termination that it is characterized in that described T shape lock tube is the cylinder that is provided with boss, this cylindrical end is a micro screw, cover is loaded onto groove and is pressed bowl on this micro screw, the epimere groove of this micro screw cooperates with the cylinder hexagonal socket nut, this cylindrical middle part is provided with the circular radial through hole of making matched in clearance with described hollow pipe, and this cylindrical termination portion is provided with the axial round tube hole that circular radial through hole therewith communicates
Described groove presses the boss of bowl to be provided with the umbrella shape groove, and this umbrella shape groove is meshed with the umbrella groove of the groove head U-shaped head pipe of the described joint pipeline section that is provided with umbrella groove boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101018983A CN101785692B (en) | 2010-01-28 | 2010-01-28 | Adjustable pelvic fracture external fixator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101018983A CN101785692B (en) | 2010-01-28 | 2010-01-28 | Adjustable pelvic fracture external fixator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101785692A true CN101785692A (en) | 2010-07-28 |
| CN101785692B CN101785692B (en) | 2011-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101018983A Expired - Fee Related CN101785692B (en) | 2010-01-28 | 2010-01-28 | Adjustable pelvic fracture external fixator |
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| Country | Link |
|---|---|
| CN (1) | CN101785692B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108143473A (en) * | 2017-12-27 | 2018-06-12 | 宜兴市人民医院 | A kind of outer resting guide for being accurately positioned pelvis fracture operation |
| CN108143474A (en) * | 2017-12-27 | 2018-06-12 | 苏州大学附属第医院 | A kind of outer resting guide for being accurately positioned pelvis fracture operation |
| CN110495975A (en) * | 2019-08-29 | 2019-11-26 | 北京长木谷医疗科技有限公司 | The method for posting of Position Fixing Navigation System, prosthese |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5350378A (en) * | 1993-05-19 | 1994-09-27 | Cole J Dean | Posterior external pelvic fixator |
| CN2300379Y (en) * | 1997-04-30 | 1998-12-16 | 海城市正骨医院 | Slot type pelvis reduction external fixator |
| CN1141914C (en) * | 2000-01-08 | 2004-03-17 | 苏继承 | External pelvis-repositioning fixer |
| CN201617931U (en) * | 2010-01-28 | 2010-11-03 | 贾恩鹏 | Adjustable pelvic fracture external fixing apparatus |
-
2010
- 2010-01-28 CN CN2010101018983A patent/CN101785692B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108143473A (en) * | 2017-12-27 | 2018-06-12 | 宜兴市人民医院 | A kind of outer resting guide for being accurately positioned pelvis fracture operation |
| CN108143474A (en) * | 2017-12-27 | 2018-06-12 | 苏州大学附属第医院 | A kind of outer resting guide for being accurately positioned pelvis fracture operation |
| CN108143473B (en) * | 2017-12-27 | 2020-04-10 | 蒋臻欢 | External fixation guide plate for accurate positioning pelvis fracture operation |
| CN110495975A (en) * | 2019-08-29 | 2019-11-26 | 北京长木谷医疗科技有限公司 | The method for posting of Position Fixing Navigation System, prosthese |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101785692B (en) | 2011-08-17 |
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