CN1148152C - Osteological reducing and fixing orthopaedical device - Google Patents
Osteological reducing and fixing orthopaedical device Download PDFInfo
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- CN1148152C CN1148152C CNB991263790A CN99126379A CN1148152C CN 1148152 C CN1148152 C CN 1148152C CN B991263790 A CNB991263790 A CN B991263790A CN 99126379 A CN99126379 A CN 99126379A CN 1148152 C CN1148152 C CN 1148152C
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- 238000013461 design Methods 0.000 description 3
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- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 230000008733 trauma Effects 0.000 description 1
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Abstract
The present invention relates to a reposition fixing orthopedic device which comprises a fixing screw, a push-pull screw movably connected to both ends of a longitudinal connecting rod, wherein one end of the fixing screw end can be axially adjusted along a longitudinal connecting rod; one end of the push-pull screw penetrates through a through hole in the other end of the longitudinal connecting rod, and an included angle between the central line of the push-pull screw and the longitudinal connecting rod can be adjusted; then the push-pull screw is locked in a correct position by a locking device, and a 'U'-shaped supporter is formed. The longitudinal connecting rod is a polished rod whose one end has a through hole; a gap is left between the push-pull screw and the through hole, and an included angle between the push-pull screw and the longitudinal connecting rod is adjusted by the gap; one end of the fixing screw is in rotary connection around one end of the longitudinal connecting rod; after the fixing screw and the push-pull screw are positioned in correct positions by the locking device, the projections of extending lines of axial lines of the fixing screw and the push-pull screw on a plane where a human body's physiological curvature axial line form an included angle.
Description
Technical field
The present invention relates to a kind of Osteological device in the medical instruments field, especially for spinal trauma or malformation correction, especially spondylolishesis resets fixed orthopaedics with interplantation formula orthosis.
Background technology
Spinal surgery is a field that has developed rapidly in the orthopaedics field since the eighties.Merge problems such as paraplegia, spinal column regression deformity, slippage for a long time at spinal fracture, variously design implants based on pedicle screw and constantly come out.But the biomechanics characteristic in the anatomic form of spinal column complexity and function and the three dimensions, make the design of pedicle screw implants again and use and exist outstanding difficult point, be the three-dimensional mechanical characteristic of spinal column, require implants to have multiple corrective force and three dimensions adjustability.The Osteological device that is used for the treatment of at present spinal disease in the world has representational have U.S. AO system and Steffee fluting steel plate and screw system.Steffee fluting steel plate and screw system are simple, firm, but have lost the three dimensions adjustability; AO system implants becomes the adjustable implants of real three dimensions with the labyrinth of universal joint, and the spinal fracture that makes various complex shapes is under the effect of the multiple corrective force of three dimensions, and anatomical reduction becomes possibility.But the labyrinth of universal joint has brought complicated operation, the easily loosening major defect in fixing back, thereby resetting of obtaining is lost just, loses acquired therapeutic effect.
As a kind of improvement of said method, ZL93213258.8 discloses a kind of angle screw bilateral break-in nut Osteological device, includes an angle screw 11, bilateral break-in nut 14, fluting bolt 1 and push-pull effort screw 15.The flat head of angle screw 11 has U type opening and bends an angle, bilateral break-in nut 14 is hexahedrons, respectively open a circular hole on its three faces, perforation can mutually, fluting bolt one end is put into flat U type opening, and both become the angle greater than 90 degree, and the bolt other end stretches in another circular hole of bolt, one section rib-loop tail is extended in the turret head upper end of push-pull effort screw 15, two through holes in addition of its break-through nut.After being connected and fixed, screw can be that 360 degree circular motion are done in the center of circle with the bolt shaft.This Osteological device has possessed three-dimensional multiple corrective force, and the only fixedly spinal segments of pathological changes and an adjacent joint spinal segments thereof.This improvement is compared tool with existing AO series orthosis and is had greatly improved, can accomplish the labyrinth of no gimbal suspension, can realize three-dimensional adjustment really again, really solved the complexity of such implants and the contradiction of simplicity, motility and robustness, thereby made serious spondylolishesis reach real anatomical reduction.
Utilizing the orthotic operation technique of this kind, is earlier angle screw 11 and push-pull effort screw 15 to be separately fixed on the spinal segment that becomes sick and the adjacent spinal segment thereof, two screws is connected on bilateral break-in nut 14 and the fluting bolt 1 again.Because the individual variation of human body is bigger, must adjust at the angle between distance between two screws and two screws on the fluting bolt 1 and fluting bolt.Method of adjustment to the said structure orthopedic instrument is, earlier a nut 12 of angle screw 11 1 sides is screwed into the appropriate location and fixes, thus again turn opposite side nut 13 angle screws make angle screw 11 be locked on the correct axial location with being held and angle on.From the aforesaid operations process as can be seen, the three-dimensional adjustment process of this kind orthosis realizes by helicitic texture that all the defective that it brought is that the operation technique outfit is many, the operating process very complicated, it is slow to regulate the speed, and thereby prolonged operating time; Therefore also can increase the operation technique difficulty in addition, also higher to the requirement of operation operator's technical merit, limited the popularization of this technology to a certain extent.
Secondly, because patient's spinal column has the motion of six-freedom degree in complicated anatomic form and the three dimensions, the proper reset to spinal column three dimensions anatomical position in therapeutic process is very important.And in the process of operation, orthosis structural adjustment to very correct position can must be reached the effect of ideal anatomical reduction.And when the operation technique of reality, because the spinal lesion situation is very complicated, when two screws are implanted spinal column, be difficult to be controlled in the same plane, want to be connected and fixed the adjustment that two screws need be done bigger distance and angle, and above-mentioned in the prior art adjustment is all finished by threaded adjusting, the difficulty of operation is very big, sometimes the influence of other factor in being performed the operation, be difficult to reach optimal adjustment effect, therefore also can influence the quality or the effect of operation, and present above-mentioned defective is that technical merit with the operation technique person remedies, often needing that the operation operator is carried out comparatively strict training can be competent at, and has therefore limited the application of this kind operation widely, and has influenced the popularization of this kind surgical technic.
Summary of the invention
The purpose of this invention is to provide a kind of Osteological reducing and fixing orthopaedical device, make and more convenient fast, the operation easier that reduced operation of the three-dimensional adjustment positioning action of orthomorphia of spinal column orthopaedics reduce operating time, help the popularization of this kind operation.
Another object of the present invention is on the basis that further simplifies the orthosis structure, and firm firm after the implementation structure locking is to guarantee the anatomical reduction effect of postoperative.
The present invention is achieved in that a kind of Osteological reducing and fixing orthopaedical device, include a hold-down screw and a push-pull effort screw, this two screw is connected in longitudinal rod two ends versatilely, this hold-down screw one end longitudinally first end of connecting rod is axially adjustable, one end of push-pull effort screw passes the through hole of longitudinal rod second end, its centrage and longitudinal rod adjustable included angle; Described hold-down screw and push-pull effort screw are locked in the tram by locking device respectively, constitute one and are " U " font supporter; It is characterized by: this longitudinal rod is the polished rod that second end has described through hole, leaves the gap between push-pull effort screw and this through hole, and by the angle between this gap adjustment push-pull effort screw and longitudinal rod; The hold-down screw upper end is the rotary state connection around first end of longitudinal rod, and after described hold-down screw and push-pull effort screw were positioned the tram by described locking device, its axis extended line projection on sagittal plane was an angle.
Operation principle of the present invention is, because anatomic status and the function and the three-dimensional biomechanics characteristic of spinal column complexity require orthopedic implants to have multiple corrective force and three-dimensional adjustability.Among the present invention, this adjustment realizes by following several links:
Smooth being connected between the longitudinal rod that wears in the slideway of one, the upper end by hold-down screw, axial distance between screw and push-pull effort screw is decided at first adjustable solidating, its method of adjustment is, with the inside pinching of a clamp or outwards support rise and can make the hold-down screw connecting rod first end slippage longitudinally; Secondly, can make hold-down screw rotate, to adjust the angle direction of hold-down screw with respect to longitudinal rod around the termination of this longitudinal rod; The 3rd, can make the push-pull effort screw that is inserted in longitudinal rod second end, with vertical side rod with respect to the rotation in the slideway of hold-down screw upper end, to adjust the push-pull effort screw relatively and the angle direction of longitudinal rod.
After pressing above-mentioned adjustment location, by the whole adjustment operation in promptly performing the operation fully after the positioning and locking device locking of being located in the hold-down screw upper end.
Two, owing to be matched in clearance between the through hole of push-pull effort screw rod and longitudinal rod second end, make this push-pull effort screw the termination can be that rotating shaft is carried out low-angle with this through hole, and then the low-angle adjustment of realization push-pull effort screw; Lock the push-pull effort screw again, pull back or release forward spinal column, reach strutting or pressurizeing on the physiological bending axis at last, thereby realize the anatomical reduction of different shape.
Three, in the present invention, the angle of the angle that the angle adjustment between hold-down screw and push-pull effort screw can be by longitudinal rod or the spiro rod section of hold-down screw, perhaps be equipped with angle in longitudinal rod and hold-down screw, its adjusting range is bigger, angle adjustment operation in the operation of being more convenient for.
In sum, the present invention compared with prior art has following advantage:
1, adopts a slip positioning and locking device, by cooperating between guide locating device provided on the lateral surface on the slip positioning and locking device and the open slot inwall that is located at hold-down screw upper end, polished rod on the connecting rod is positioned in the open slot on the hold-down screw upper end, again by the locking that is fixed of a holding device.When connecting two screws, can be easy to the connecting rod location, be locked on the hold-down screw, clamping by a clamp and the operation that struts can be regulated distance between two screws and rotatable arbitrarily angled easily.Only need screw holding device in the time of fixedly gets final product.Said structure is being installed, is locating, tightens simple to operate in the process, easy, has reduced operating difficulty.
2, a block chalaza is respectively arranged at slip positioning and locking device two lateral surface tops, respectively there is a block chalaza to match with the relevant position of open slot two medial surface of described hold-down screw upper end, when connecting longitudinal rod and hold-down screw, slip positioning and locking device firm position, difficult slip comes off.
3, in one embodiment of the present invention, the groove that is located on hold-down screw upper end open groove two medial surface can be the identical parallel slot of both ends open size, the slip positioning and locking device can import from the two ends of notch, in operation, increased the selection of installation direction, avoided in operation, being subjected to the restriction at some position and situation about can't install.
4, the push-pull effort screw is the sphere contact with contacting of longitudinal rod second end, there is a boss platform upper surface of the hole wall of longitudinal rod second end, is located on the locking member of the push-pull effort screw that penetrates this hole and has a circular concave to match with this boss platform on the adjacent side end face with this boss platform.There is a circular concave lower surface of longitudinal rod second end, matches with the boss platform of the clamping boss upper surface of the push-pull effort screw that passes this hole, can allow the push-pull effort screw under the situation of inclination certain angle with its locking.
The present invention adopts titanium steel or titanium alloy steel material, intensity height, in light weight, and implant into body is highly profitable.
Description of drawings
Fig. 1 is the exploded view of the angle screw bilateral break-in nut Osteological device of prior art;
Fig. 2 is the overall diagram of the angle screw bilateral break-in nut Osteological device of prior art;
Fig. 3 is first kind of example structure sketch map of the present invention;
Fig. 4 is the user mode figure of first kind of embodiment of the present invention;
Fig. 5 is the another kind of user mode figure of first kind of embodiment of the present invention;
Fig. 6 is the structural representation of second kind of embodiment of the present invention;
Fig. 7 is the structural representation of the third embodiment of the present invention;
Fig. 8 is the axonometric chart of hold-down screw of the present invention;
Fig. 9 is the front view of hold-down screw among Fig. 8;
Figure 10 is the slide axonometric chart of positioning and locking device open mode of the present invention;
Figure 11 is the slide front view of positioning and locking device open mode of the present invention;
Figure 12 is the slide axonometric chart of positioning and locking device locking state of the present invention;
Figure 13 is the axonometric chart of longitudinal rod of the present invention;
Figure 14 is a push-pull effort bolt structure sketch map of the present invention;
Figure 15 is the hold-down screw that has angle of the present invention;
Figure 16 is an embodiment of hold-down screw of the present invention;
Figure 17 is hold-down screw one embodiment of the present invention;
Figure 18 is an embodiment of hold-down screw of the present invention;
Figure 19 is an embodiment of hold-down screw of the present invention;
Figure 20 is first kind of angle adjustment schematic diagram of the present invention;
Figure 21 is second kind of angle adjustment schematic diagram of the present invention.
The specific embodiment
Embodiment 1
Fig. 3, Fig. 4 and Fig. 5 illustrate the plane graph of the different stationary state of a kind of most preferred embodiment of the present invention.By accompanying drawing as can be seen, the present invention includes a hold-down screw 2 and a push-pull effort screw 5, this two screw is connected in a longitudinal rod 4 two ends versatilely, is locked in the tram by locking device again and constitutes one and be " U " font supporter;
Wherein hold-down screw 2 is the structures that adopt to go out as shown in Figure 8, and its upper end has one and constitutes a slideway structure by open slot 21;
One end of push-pull effort screw 5 then passes the through hole 44 of longitudinal rod 4 second ends, and is matched in clearance, and the therefore angle by push-pull effort screw 5 rotation this through hole 44 in change push-pull effort screw 5 is with adjustment push-pull effort screw and longitudinal rod 4 angles.After the adjustment of above-mentioned position and angle is finished, by a locking device with lock in place in the tram, constitute a fixed support body that is the U font, make that the axis extended line of 5 on hold-down screw 2 and push-pull effort screw is that projection on the sagittal plane is an angle a on plane, physiological bending axis place.
The structure that the structure employing of this longitudinal rod 4 goes out as shown in figure 13, this longitudinal rod 4 is the polished rod that second end has described through hole, is made up of one first end 41 and second end that has a through hole 44, first end 41 has an angle α and curved arc transition.First end 41 is arranged in the above-mentioned slideway that is made of open slot 21, because the A/F of this open slot 21 makes this wear processing ease less than the diameter of longitudinal rod first end 41 polished rods.In the said structure, hold-down screw 2 one ends both longitudinally pitman shaft adjust its axial location to adjustable, can rotate around this longitudinal rod 4 again, to adjust the angle direction of hold-down screw with respect to longitudinal rod 4.Because this slideway is contacting of shiny surface with 41 at first end, therefore when making above-mentioned axial adjustment or angle adjustment, compare more efficient and convenient with respect to prior art threaded adjustment mode.The U-shaped supporter forms a shape that is suitable for human spine's physiological bending.
Locking device in the present embodiment be a kind of slip positioning and locking device cooperate above-mentioned open slot 21 constitute the structure of slip positioner such as Figure 10, Figure 11 and shown in Figure 12.It includes a slide block body 3, and this slide block body 3 is provided with a holding device, and this holding device is a jackscrew 34 through slide block body 3.First end 41 at longitudinal rod 4 is positioned at this open slot 21, and adjusted is to correct position, this slide block body 3 can be slipped in the open slot 21 along the upper end of the open slot 41 on the said fixing screw, be screwed down jackscrew 34 again, first end 41 is held out against in this open slot 21, and locking hold-down screw 2 is with respect to the angle direction and the axial location of longitudinal rod 4.
For the restriction slide-and-lock is installed on relative position in the open slot 21, be provided with the guider of protruding, recessed embedding mutually between two interior sidewall surface of open slot 21 and slide-and-lock device.Guider in the present embodiment is to constitute like this, open slot 21 has two parallel medial walls, this medial wall is provided with longitudinal fluting 22, and be provided with and this groove 22 corresponding vertical projections 31 in two outer wall sides of above-mentioned slide block body 3, can be slipped into the appropriate location along this groove 22 of being located at open slot 21 sidewalls, hold out against the operation of longitudinal rod 4 again.In the present embodiment, the cross section of the direction recess 22 of this open slot 21 can be a kind of dove-tail form, but also can be rectangle, triangle, arc or semicircle or the like.Because the medial wall opposing parallel of open slot 21, so slide block body 3 can insert the operation that is more convenient for performing the operation from the two ends of open slot 21.
The appropriate location of the structure of present embodiment is that the concave point 23 that the card salient point 33 on slide block body 31 snaps on the open slot 21 is determined, strengthens the accurate positioning of slide block body 3.Also the lower surface of slide block body 3 can be had arc 32 corresponding to longitudinal rod 4.
The structure of push-pull effort screw 5 includes and has self tapping structure thread segment 51, foot piece 53 and be positioned between the two clamping boss 52 as shown in figure 14, and the perisporium of this clamping boss 52 is provided with a flat clamping face at least, is used for the operation of the clamping locking of wrench.Threaded rod 51 is screwed in the spinal column, and by the definite degree of depth that is screwed in advance of the concrete condition of pathological changes spinal column, 44 of through holes on the above-mentioned longitudinal rod 4 are enclosed within on the foot piece 53, utilize through hole 44 to carry out relative angle adjustment with the gap between the foot piece 53, again by a lock nut 6.Because the axis of push-pull effort screw 5 is an angle with the centrage of the through hole 44 of longitudinal rod 4 often, therefore be positioned at the lower surface of through hole 44 and be fastened in that the employing sphere cooperates between this lower surface of upper surface and through hole 44 of clamping boss 52 above-mentioned, promptly be provided with a segment inner concave in the lower surface of through hole 44, and be provided with a boss platform 54 in the upper surface of the clamping boss 52 of push-pull effort screw rod 5, to cooperate the inner concave of through hole 44.In like manner, also be that sphere contacts between the upper surface of lock nut 6 and above-mentioned through hole 44, in the present embodiment, the curved flanges 43 that through hole 44 upper surfaces of this longitudinal rod 4 have, and this lock nut 6 has a segment concave surface.Because above-mentioned sphere fit structure, guarantee when the centrage of the axis of push-pull effort screw 5 and the through hole 44 of longitudinal rod 4 is angle locking, increase and lock area, guarantee to lock the structural stability of U-shaped supporter afterwards.Also elastic expansion circle 45 can be provided with in the above-mentioned through hole 44, the loosening of foot piece 53 can be prevented.Its state of adjusting after the locking sees also Fig. 4 and shown in Figure 5.
Present embodiment in use, implant the spinal segments of pathological changes when push-pull effort screw 5, after hold-down screw 2 is implanted the sections adjacent with the pathological changes spinal segments, hole 44 on longitudinal rod 4 terminations is inserted on the foot piece 54 of push-pull effort screw, again first end 41 of longitudinal rod 4 is penetrated in the open slot 21 on the termination of hold-down screw 2, carry out the adjustment of angle and axial location.At last the slip positioning and locking device being slided imports in the open slot 21, and the projection on the slip positioning and locking device lateral surface is embedded in the groove 22.Use a clamp to clamp the soil end of slip positioning and locking device and hold-down screw, the block chalaza 33 of the evagination on the block chalaza 23 that makes indent on two medial surface of open slot 21 and the lateral surface of slip positioning and locking device 3 is fastened togather, the positioning and locking device that slides this moment is located, and screws in jackscrew 34 downwards the polished rod on the longitudinal rod 41 is resisted against locking in the open slot 21.Clamping by a clamping clip or the operation that struts can be regulated distance between hold-down screw and push-pull effort screw and rotatable arbitrarily angled at an easy rate, when regulating distance and angle, holding device holds out against polished rod on the bottom surface of open slot 21, and overall structure is locked.
Angle adjustment in the present embodiment is realized by two aspects, at first be to utilize the angle [alpha] that is had on the longitudinal rod 4, this angle [alpha] is generally between 0 degree is spent to 60, feature according to general human body, this angle the best should be at 5 ° to 20 ° degree, and this angle Selection should be decided according to patient's concrete condition.Next is to utilize the gap of 44 of push-pull effort screw 5 and longitudinal rod 4 through holes to carry out low-angle adjustment, thereby make that the adjustment of angle is more accurate, its principle as shown in figure 20, at first, determine a basic angle a by the angle [alpha] of longitudinal rod 4, by the gap of 44 of push-pull effort screw 5 and longitudinal rod 4 through holes the angle a of angle is carried out low-angle adjustment again, its adjusting range is a1, a2.
Fig. 6 illustrates second kind of embodiment of the present invention, in the present embodiment, the present invention includes a hold-down screw 10, push-pull effort screw 5 and be connected in a longitudinal rod 4 two ends versatilely, be locked in the tram by locking device again and constitute one and be " U " font supporter.
Wherein hold-down screw 2 is the structures that adopt to go out as shown in figure 15, and its upper end has an open slot 21 and constitutes a slideway structure; The thread segment of lower end is α with an angle then, and this angle [alpha] can be designed to 0 ° to 60 ° according to human spine's different situations, and by general conventional build, this angle optimum range is 5 ° to 20 °.In the present embodiment, the direct rod shape that 41 employings of longitudinal rod 4 first ends go out as shown in Figure 6, and no longer have angle.This first end 41 is arranged in the above-mentioned slideway that is made of open slot 21, because the A/F of this open slot, makes the processing ease that this wears less than the diameter of longitudinal rod first end 41 polished rods.And in the present embodiment, this hold-down screw can adopt structure as shown in figure 19, and the opening direction 101 of its open slot 101 is positioned at the side of hold-down screw upper end.According to principle of the present invention, the direction of the open slot of angle screw can also be established the upper surface or the oblique side of a termination.Said structure hold-down screw 2 one ends still 4 slips of connecting rod longitudinally carry out the adjustment of axial location, can rotate around this longitudinal rod 4 again, to adjust hold-down screw 2 or 10 angle directions with respect to longitudinal rod 4.
One end of push-pull effort screw 5 then passes the through hole 44 of longitudinal rod 4 other ends, and be matched in clearance, therefore adjust the angle of push-pull effort screw 5 by the rotation of push-pull effort screw 5 this through hole 44 in, thereby and then reach and adjust the push-pull effort screw is an angle a with respect to 4 corner dimensions of longitudinal rod and direction adjustment hold-down screw axis extended line and the projection of push-pull effort screw axis rand line on physiological bending axis plane angle.The principle of its angle adjustment at first, is determined a basic angle a by the angle α of hold-down screw 2 as shown in figure 21, by the gap of 44 of push-pull effort screw 5 and longitudinal rod 4 through holes the angle a of angle is carried out low-angle adjustment again, and its adjusting range is a1, a2.
After the adjustment of above-mentioned position and angle is finished, will be locked in a correct position, constitute a fixed support body that is the U font by a locking device.Hold-down screw 2 is an angle with the projection of axis rand line on human body axis of bending face of push-pull effort screw 5, and this supporter forms a shape that is suitable for human spine's bending.
Locking device structure in the present embodiment, with and the operation principle of locking identical with embodiment 1, do not repeat them here.
The structure of present embodiment includes a hold-down screw 2, push-pull effort screw 5 and is connected in a longitudinal rod 4 two ends versatilely at present embodiment as shown in Figure 7, is locked in the tram by locking device again and constitutes one and be " U " font supporter.
Wherein hold-down screw 2 is the structures that adopt to go out as shown in figure 15, and its upper end has an open slot 21 and constitutes a slideway structure; The thread segment of lower end is α with an angle then, this angle can be designed to 0 ° to 60 ° according to human spine's different situations, by general conventional build, this angle optimum range is 5 ° to 20 °, the structure that 41 employings of longitudinal rod 4 first ends go out as shown in figure 13, it is in first end, 41 tool angle [alpha].This first end 41 is arranged in the above-mentioned slideway that is made of open slot 21, because the A/F of this open slot, makes the processing ease that this wears less than the diameter of longitudinal rod first end 41 polished rods.And in the present embodiment, the direction of this open slot 21 is positioned at the side of hold-down screw upper end, as shown in figure 19.Owing to all be the angle setting on hold-down screw 2 in the present embodiment and the longitudinal rod 4, make both increase in the scope of physiological bending axle place planar projection angle a, can reduce the adjusting range of push-pull effort screw 5 with this, the angle adjustment principle of present embodiment is same as the previously described embodiments.
Embodiment 4
Present embodiment assembling back structure can be referring to Fig. 3 or Fig. 6.In the present embodiment, the structure of this hold-down screw can be a hold-down screw 7 as shown in figure 16, it includes open slot 71, set guider is the guiding raised line 72 that is positioned on the inwall on the inwall of this open slot 71, and in the two sides of corresponding locking device slide block body also correspondence be provided with and this raised line 72 corresponding groove.
The structure of the hold-down screw of present embodiment can be a hold-down screw 8 as shown in figure 17 also, this hold-down screw 8 includes open slot 81, two medial walls 82 of this open slot 81 are the little wedge-shaped slot of the big end of an end, and also be wedge-shaped design accordingly in the two sides of corresponding locking device slide block body, this kind embodiment, as the slide block 3 of slide-and-lock device is that a side head by open slot 81 slips into, and ends to the terminal knot of this open wedge.Therefore in this example, need not to be provided with the protruding location structure of locator card between the sidewall of open slot 21 and slide block 3.
The syndeton of present embodiment and adjustment mode are same as the previously described embodiments.
Present embodiment assembling back structure can be referring to Fig. 3 or Fig. 6.In the present embodiment, the structure of this hold-down screw 9 as shown in figure 18, in the present embodiment, the termination of this hold-down screw 9 has a through hole 91, it is oval that this through hole is preferably.Can be provided with a holding device on the sidewall of through hole 91, in the present embodiment, be provided with a screwed hole 92, can be provided with a jackscrew in this screwed hole 92 and tightly install, perhaps be fixed with a jacking block in this lower end of top thread as item in this sidewall.Longitudinal rod 4 is arranged in this through hole 91, make this hold-down screw 2 longitudinally connecting rod 4 carry out axial adjustment, can rotate to adjust its angle direction around this longitudinal rod 4 again with respect to longitudinal rod 4.The structure of present embodiment is one of a kind of minimalist program of the present invention, and it is simplified structure further.
The syndeton of present embodiment, adjustment mode and operation principle are same as the previously described embodiments.
Among the present invention, the shape of the open slot 21 of hold-down screw 2 also can be as shown in figure 15.In addition among the present invention, the structure of hold-down screw 7 can adopt the structure that goes out as shown in figure 16, the protruding key 72 that establish the medial wall of its open slot 71 is as the guider of slip positioner, and slide block 3 then can be provided with corresponding chimeric with it with these protruding key 71 corresponding grooves.
Various element of the present invention all can be made by titanium steel or titanium alloy, and it has fabulous mechanical strength, and a large amount of clinical practices prove that orthopaedics implants of the present invention can guarantee that it can not rupture in the course of treatment of whole anatomical reduction.The threaded end of hold-down screw 2 and push-pull effort screw can be provided with the self tapping structure.
The foregoing description is to further specify of the present invention, but not is used to limit the present invention.
Claims (36)
1, a kind of Osteological reducing and fixing orthopaedical device, include a hold-down screw and a push-pull effort screw, these two screws are connected in longitudinal rod two ends versatilely, longitudinally first end of connecting rod is axially adjustable on this hold-down screw, one end of this push-pull effort screw passes the through hole of longitudinal rod second end, the adjustable included angle of its centrage and longitudinal rod; Described hold-down screw and push-pull effort screw are locked in the tram by locking device respectively, constitute one and are " U " font supporter; It is characterized by: this longitudinal rod is the polished rod that second end has described through hole, leaves the gap between push-pull effort screw and this through hole, and by the angle between this gap adjustment push-pull effort screw and longitudinal rod; The hold-down screw upper end is the rotary state connection around first end of longitudinal rod, and after described hold-down screw and push-pull effort screw were positioned the tram by described locking device respectively, its axis extended line projection on sagittal plane was an angle.
2, Osteological reducing and fixing orthopaedical device according to claim 1, first end that it is characterized in that longitudinal rod is arranged in the hold-down screw upper end slidably again rotationally, with adjust the axial location of hold-down screw on longitudinal rod with and with the angle direction of longitudinal rod.
3, Osteological reducing and fixing orthopaedical device according to claim 1 and 2 is characterized in that described hold-down screw upper end is provided with a slideway, and first end of longitudinal rod is arranged in this slideway.
4, a kind of Osteological reducing and fixing orthopaedical device as claimed in claim 3, it is characterized by: the slideway of described hold-down screw upper end is a through hole, first end and this through hole of longitudinal rod are matched in clearance, and the locking device of the described screw that is locked is the holding device of being located on the hole wall.
5, Osteological reducing and fixing orthopaedical device as claimed in claim 3, the slideway that it is characterized by described hold-down screw upper end is an open slot, the locking device of the screw that is locked is a slip positioning and locking device that can be slidingly matched with slideway.
6, Osteological reducing and fixing orthopaedical device as claimed in claim 5 is characterized by: the opening direction of the slideway of described hold-down screw upper end is for upward or to side or prism.
7, a kind of Osteological reducing and fixing orthopaedical device as claimed in claim 5 is characterized by: described slideway A/F is less than the diameter of longitudinal rod.
8, Osteological reducing and fixing orthopaedical device as claimed in claim 5 is characterized by: described slideway inwall is provided with guide locating device provided that the locking device orientation that can make the screw that is locked slips into.
9, Osteological reducing and fixing orthopaedical device as claimed in claim 8 is characterized by: described slideway two medial surface are parallel surface.
10, Osteological reducing and fixing orthopaedical device as claimed in claim 8 is characterized by: the inclined-plane of described slideway two medial surface for tilting.
11, a kind of Osteological reducing and fixing orthopaedical device as claimed in claim 8, it is characterized by: described guide locating device provided chimeric with the corresponding surface slip positioning and locking device, the slip positioning and locking device is provided with holding device, and first end of longitudinal rod is resisted against the open slot internal fixation.
12, Osteological reducing and fixing orthopaedical device as claimed in claim 4 is characterized by: described holding device is a jackscrew.
13, Osteological reducing and fixing orthopaedical device as claimed in claim 11 is characterized by: described holding device is a jackscrew.
14, Osteological reducing and fixing orthopaedical device as claimed in claim 8 is characterized by: described guide locating device provided the be direction recess or the protruding key that leads; Protruding key of guiding or direction recess on this direction recess or lead protruding key and the slip positioning and locking device on the corresponding surface are chimeric.
15, Osteological reducing and fixing orthopaedical device as claimed in claim 14 is characterized by: the cross section of the described mutually chimeric positioning and guiding groove or the protruding key that leads is triangle, square, wedge shape, arc or semicircle.
16, a kind of Osteological reducing and fixing orthopaedical device as claimed in claim 14 is characterized by: protruding key of described guiding or direction recess are the parallel longitudinal setting.
17, Osteological reducing and fixing orthopaedical device as claimed in claim 14 is characterized by: protruding key of described guiding or direction recess are that an end is big, the wedge shape setting that an end is little.
18, a kind of Osteological reducing and fixing orthopaedical device as claimed in claim 5 is characterized by: be provided with between described slideway medial surface and slip positioning and locking device and engage positioner.
19, a kind of Osteological reducing and fixing orthopaedical device as claimed in claim 9 is characterized by: be provided with between described slideway medial surface and slip positioning and locking device and engage positioner.
20, a kind of Osteological reducing and fixing orthopaedical device as claimed in claim 10 is characterized by: be provided with between described slideway medial surface and slip positioning and locking device and engage positioner.
21, a kind of Osteological reducing and fixing orthopaedical device as claimed in claim 18 is characterized by: described engaging positioner is concave point or the salient point on the outside corresponding surface of salient point on the slideway medial surface or concave point and slip positioning and locking device.
22, Osteological reducing and fixing orthopaedical device as claimed in claim 1 is characterized by: the locking device of the described screw that is locked is a slide block, and slide block is provided with holding device.
23, Osteological reducing and fixing orthopaedical device as claimed in claim 22 is characterized by: described slide block lower surface is the arcwall face of first end of a corresponding described longitudinal rod, and this holding device is the jackscrew of being located on the slide block.
24, Osteological reducing and fixing orthopaedical device as claimed in claim 1 is characterized by: the angle of described hold-down screw axis extended line and projection the be angle of push-pull effort screw axis extended line on sagittal plane is 0 ° to 60 °.
25, as claim 1 or 24 described Osteological reducing and fixing orthopaedical devices, it is characterized by: the lower end of described hold-down screw is the threaded rod section, and the upper end of described hold-down screw and this threaded rod section are the angle setting.
26, as claim 1 or 24 described Osteological reducing and fixing orthopaedical devices, it is characterized by: second end of described longitudinal rod and first end are angle setting and curved arc transition.
27, Osteological reducing and fixing orthopaedical device according to claim 1, it is characterized by: push-pull effort screw two ends all are threaded, be the clamping boss between two sections screw threads, and can be anchored on the longitudinal rod through hole by the upper end by the described locking device of the described push-pull effort screw of locking.
28, Osteological reducing and fixing orthopaedical device as claimed in claim 27 is characterized by: be installed with an expansion loop in the through hole of described longitudinal rod second end.
29, Osteological reducing and fixing orthopaedical device as claimed in claim 28 is characterized by between the end face of expansion loop and the clamping boss of push-pull effort screw in the through hole of described longitudinal rod second end and contacts for sphere.
30, as claim 1 or 27 described Osteological reducing and fixing orthopaedical devices, it is characterized by: contact for sphere between the locking device contact surface of the through hole end face of described longitudinal rod second end and described locking push-pull effort screw.
31, as claim 1 or 27 described Osteological reducing and fixing orthopaedical devices, it is characterized by: contact for sphere between the contact surface on the through hole end face of described longitudinal rod second end and the push-pull effort screw.
32, Osteological reducing and fixing orthopaedical device as claimed in claim 31 is characterized by: the through hole end face of described longitudinal rod second end has a segment concave surface, has a sphere boss on the contact surface on the push-pull effort screw.
33, Osteological reducing and fixing orthopaedical device as claimed in claim 30 is characterized by: the through hole end face of described longitudinal rod second end has a sphere boss, and the contact surface on the locking device of described locking push-pull effort screw has a segment concave surface.
34, Osteological reducing and fixing orthopaedical device as claimed in claim 1 is characterized by: the through hole of described longitudinal rod second end is a circular hole, perhaps is elliptical aperture.
35, Osteological reducing and fixing orthopaedical device as claimed in claim 1 is characterized by: described Osteological reducing and fixing orthopaedical device constitutes for the titanium steel material.
36, Osteological reducing and fixing orthopaedical device as claimed in claim 1 is characterized by: the lower end of described hold-down screw and push-pull effort screw is a threaded end, and this threaded end has the self tapping structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991263790A CN1148152C (en) | 1999-12-15 | 1999-12-15 | Osteological reducing and fixing orthopaedical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991263790A CN1148152C (en) | 1999-12-15 | 1999-12-15 | Osteological reducing and fixing orthopaedical device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1299635A CN1299635A (en) | 2001-06-20 |
| CN1148152C true CN1148152C (en) | 2004-05-05 |
Family
ID=5284427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991263790A Expired - Lifetime CN1148152C (en) | 1999-12-15 | 1999-12-15 | Osteological reducing and fixing orthopaedical device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1148152C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9267443B2 (en) | 2009-05-08 | 2016-02-23 | Gas Turbine Efficiency Sweden Ab | Automated tuning of gas turbine combustion systems |
| US9328670B2 (en) | 2009-05-08 | 2016-05-03 | Gas Turbine Efficiency Sweden Ab | Automated tuning of gas turbine combustion systems |
| US9354618B2 (en) | 2009-05-08 | 2016-05-31 | Gas Turbine Efficiency Sweden Ab | Automated tuning of multiple fuel gas turbine combustion systems |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101361674B (en) * | 2007-08-09 | 2010-08-11 | 邹德威 | Angle-adjustable intervertebral expansion device |
| US7957831B2 (en) * | 2008-04-04 | 2011-06-07 | Isaacs Robert E | System and device for designing and forming a surgical implant |
| US8549888B2 (en) | 2008-04-04 | 2013-10-08 | Nuvasive, Inc. | System and device for designing and forming a surgical implant |
| CN106308978B (en) * | 2016-08-17 | 2017-10-20 | 董谢平 | A kind of bone within bone Conveyer and its application method |
| CN106667564B (en) * | 2017-01-06 | 2023-11-28 | 创生医疗器械（中国）有限公司 | Explosion-proof silk pedicle screw |
-
1999
- 1999-12-15 CN CNB991263790A patent/CN1148152C/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9267443B2 (en) | 2009-05-08 | 2016-02-23 | Gas Turbine Efficiency Sweden Ab | Automated tuning of gas turbine combustion systems |
| US9328670B2 (en) | 2009-05-08 | 2016-05-03 | Gas Turbine Efficiency Sweden Ab | Automated tuning of gas turbine combustion systems |
| US9354618B2 (en) | 2009-05-08 | 2016-05-31 | Gas Turbine Efficiency Sweden Ab | Automated tuning of multiple fuel gas turbine combustion systems |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1299635A (en) | 2001-06-20 |
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Assignee: Beijing Orthopedic Innovation Inc. Assignor: Zou Dewei Contract fulfillment period: 2005.1.4 to 2015.1.3 Contract record no.: 2008110000202 Denomination of invention: Osteological reducing and fixing orthopaedical device Granted publication date: 20040505 License type: Exclusive license Record date: 20081212 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2005.1.4 TO 2015.1.3; CHANGE OF CONTRACT Name of requester: BEIJING CITY AOSI BILIKE NEW TECHNOLOGY DEVELOPMEN Effective date: 20081212 |
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