CN103393460A - Universal posterior locking anatomic bone fracture plate for acetabulum - Google Patents
Universal posterior locking anatomic bone fracture plate for acetabulum Download PDFInfo
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- CN103393460A CN103393460A CN2013103718758A CN201310371875A CN103393460A CN 103393460 A CN103393460 A CN 103393460A CN 2013103718758 A CN2013103718758 A CN 2013103718758A CN 201310371875 A CN201310371875 A CN 201310371875A CN 103393460 A CN103393460 A CN 103393460A
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Abstract
The invention discloses a universal posterior locking anatomic bone fracture plate for acetabulum. The universal posterior locking anatomic bone fracture plate comprises a right bone fracture plate, bolts and a guide sleeve, wherein the mirror structure of the right bone fracture plate is a left bone fracture plate. The right bone fracture plate is reversed at 0-9 degrees clockwise along the medial axis. The medial axis profile of the right bone fracture plate is an arc-shaped plane in smooth transition. The right bone fracture plate is sequentially divided into a first locking block, a first positioning block, a second locking block, a second positioning block and a third locking block from top to bottom and is provided with a first locking unit hole, a second locking unit hole and a third locking unit hole which form included angles with the surface of the right bone fracture plate at 0-25 degrees. The locking holes are provided with internal threads of the locking holes. The bolts and the guide sleeve are provided with adaptive internal threads. The universal posterior locking anatomic bone fracture plate disclosed by the invention has the advantages that the universal posterior locking anatomic bone fracture plate is optimal in structure, good in universality, good in structural stability, accordant with biomechanical characteristics, good in adhesion on the surface of acetabulum, efficient to use and low in surgical risk.
Description
Technical field
The present invention relates to the technical field of Curative Effect of Acetabular Fractures equipment, be particularly related to a kind of universal acetabular bone rear dissection bone plate for locking, be particularly useful in Curative Effect of Acetabular Fractures, the fracture on acetabular bone rear (rear pillar/rear wall) fracture, inboard four border areas of acetabular bone or acetabular bone top, need to adopt the laying method of acetabular bone Posterior approach inside-fixture, also be applicable in the hip replacement revision procedure case of acetabular bone rear and inboard bony defect.
Background technology
Along with the continuous progress of open reduction, interior technique for fixing and the improvement of built-in material, Surgical treatment of acetabular fractures is accepted by the patient more and more widely, anatomical reduction and firm be fixedly the crucial part of processing the unsettled fracture of acetabulum of displacement, but present existing problem mainly contains: 1, for the comminuted fracture of posterior wall of acetabulum or rear pillar, relate in particular to the fracture of bearing a heavy burden and distinguish in the acetabular bone top, there is no special internal fixation device; 2 to 4 reconstruction plates commonly used or cast steel plate are fixed now, and the method has not only increased the material quantity of implant into body, has also extended operating time; 2, the fastness that the reconstruction plate that uses at present, screw, steel wire, draw point are fixed is inadequate, and screw easily is strayed in hip joint, can not guarantee that the early stage functional exercise of patient, to recover its function of joint, also likely causes postoperative joint accretion, cause funtion part to be lost; 3,, to sufferers of osteoporosis face, there is no special internal fixation device; 4, the operation related complication is many, and as many in intraoperative blood loss, operation wound is large, anesthesia duration and operating time are grown etc.; 5, fracture of acetabulum disunion or slow, the myositis ossificans of healing, traumatic arthritis, injury of sciatic nerve, implants is loosening or the complication rates such as fracture, operative failure are higher.
, along with going deep into of contemporary orthopaedics " micro-invasive operation for treating hypertension theory ", require to bring maximum clinical efficacy with as far as possible little operation wound.But there is a shortcoming in the steel plate that uses at present: the biomechanics transmission system (being the mechanotransduction route of bone) that does not meet pelvis and acetabular bone, not docile with the acetabular bone configuration of surface, need to carry out craft according to every patient's skeletal form characteristics in art moulding, make operating time prolongation, anesthesia medication increase, operative hemorrhage increase, thereby cause various potential dangers to increase.
In addition, acetabular bone and pelvis anatomical shape are irregular, and important the soft tissue structure for example position of sciatic nerve, superior gluteal nerve blood vessel and the exposure range that form has limited operative incision around skeleton have limited size and the intensity of implant; In before hip joint, side is that pelvic cavity viscera and important blood vessels are neural, puts improper easily causing of nail and accidentally injures, and gives operative reduction and interior great difficulty and the risk fixedly brought.
The internal fixation method of clinical practice at present has 3 kinds: range estimation bone surface form in (1) art, and according to estimating the moulding pre-bending of reconstruction plate.Often need repeated multiple timesly just can make steel plate and bone surface form docile.(2) aluminum template, after the reduction of the fracture, first be taped against bone surface with softer aluminum template, and is moulding according to its profile, then template is taken off, then according to the shape of template, that reconstruction plate is moulding, could fracture be fixed with reconstruction plate finally.(3) steel wire draw point screw binding method, its biomechanical stability is poor, now few use.
The most frequently used is front two kinds of methods, and its drawback is: the first, the moulding process of steel plate extends operating time, and blood loss volume during the operation is increased, otch open-assembly time prolongation, and anesthesia duration extends, and the anesthesia dosage increases, and operation potential risk and complication increase.The second, steel plate moulding, bending repeatedly, can stay indentation or draw stricture of vagina at surface of steel plate, and steel plate stress concentration point is increased, and causes the danger of implant fatigue fracture to increase.Three, steel plate is moulding bad not docile with skeleton, causes fracture to become flexible, be shifted, and causes the stress shielding of pain and bone, and the danger that malunion of fracture or malunion occur increases.
Therefore, correctly select implant very important, according to every individual patients difference characteristics, select the suitable implant of size, shape and design can increase the success rate of fracture internal fixation operation, the selecting properly implant helps to reduce operation risk, in the prior art, as the patent No. be 200820120116.9 Chinese utility model patent " a kind of Anatomic acetabulum back-wall post-pillar steel plate " (notification number is CN201211223Y); Comprise main body, main body is the wide bar shape steel plate in narrow middle part, two ends, it comprises upper end screw porose area, middle part screw porose area and lower end screw porose area, have locating hole and lower locating hole between upper end screw porose area and middle part screw porose area and between middle part screw porose area and lower end screw porose area, the left and right sides of main body all curves inwardly, and the plate in its screw hole district, middle part is towards left side or right lateral bending camber plate face, and the vertical section, axis of main body is the arc-shaped curved surface of three sections curve smoothing transition simultaneously; Although this design can solve different patient individual differences and need again moulding problem, but existing blade plate can't be effectively fixing for the fracture in acetabular bone top and acetabular bone four border areas, it is only suitable for the fracture of fixing acetabular posterior column or rear wall, and therefore, its structure is further improved.
Summary of the invention
Technical problem to be solved by this invention is the present situation for prior art, a kind of structure optimization is provided, versatility is good, structural stability is good, meet biomechanics characteristic, good with acetabular bone surface stickiness, use efficient and the low a kind of universal acetabular bone rear dissection bone plate for locking of operation risk, it is not only applicable to the fracture of acetabular posterior column or rear wall, also is applicable to the fracture fixation in acetabular bone top and acetabular bone four border areas.
the present invention solves the problems of the technologies described above the technical scheme that adopts: a kind of universal acetabular bone rear dissection bone plate for locking, include right blade plate, screw and the guide thimble that is used for the pilot bore hole direction, the mirror-image structure of described right blade plate is left blade plate, wherein, described right blade plate is 0 ° to 9 ° torsion clockwise along axis, the vertical section, axis of this right blade plate is the arc-shaped curved surface that seamlessly transits, described right blade plate is divided into the first locking block that is arcuate structure from top to bottom successively, the first location block, the second locking block, the second location block and the 3rd locking block, described the first locking block, the first location block, the second locking block, the second location block and the 3rd locking block are positioned at the A district successively, the B district, the C district, D district and E district, be shaped with and can wear at least one first lock cell hole that accessory connects with screw on described the first locking block, be shaped with at least one second lock cell hole on the second locking block, be shaped with the 3rd lock hole on the 3rd locking block, described the first lock cell hole, the second lock cell hole and the 3rd locking block all are 0 ° to 25 ° angle with right blade plate surface, all be shaped with the lockhole female thread on the first lock cell hole, the second lock cell hole, the 3rd lock hole internal face, screw head is shaped with union joint, and the periphery of union joint is shaped with the first external screw thread, and this first external screw thread can spin and coordinate with described lockhole female thread, the guide thimble bottom is shaped with working head, and the periphery of working head is shaped with the second external screw thread, and this second external screw thread can spin and coordinate with described lockhole female thread, is shaped with pilot hole on the axis of guide thimble.
The measure of taking also comprises:
Above-mentioned guide thimble top is shaped with handle, and the periphery of this handle is shaped with the annular knurl stricture of vagina, and the length of guide thimble is 120mm to 200mm, and internal diameter is 2.1mm to 3.8mm, and external diameter is 4.2mm to 9.0mm.
The union joint top of above-mentioned screw is shaped with the regular hexagon suitable with erecting tools or regular pentagon cavity, and the diameter of screw is 2.5mm to 4.5mm.
Above-mentioned screw comprises lock screw and plain screw, and the bottom of lock screw is shaped with three self tapping grooves that facilitate lock screw to be screwed into, and the tangent line of this self tapping groove and the longitudinal axis of described lock screw are the angle of 45 ° to 60 °.
The front projection of above-mentioned the first locking block is a crooked curved surface left, its left side projection is a bandy curved surface, the quantitative range in the first lock cell hole on the first locking block is 1 to 10, the center of circle in the first lock cell hole is distributed on the camber line in the same center of circle, the thickness range of the first locking block is 15.0mm to 32.0mm, and width range is 5.0mm to 15.0mm.
The top of the first above-mentioned location block offers one first location block positioning screw hole, its underpart is positioned at described the first block positioning screw hole lower right, location and offers one first location block locating hole, the thickness range of described the first location block is 15.0mm to 32.0mm, and width range is 5.0mm to 15.0mm.
The front projection of above-mentioned the second locking block is a crooked curved surface to the right, its left side projection is an aduncate curved surface, the second lock cell hole circle heart on the second locking block is distributed on the sphere of the same centre of sphere, the thickness range of the second locking block is 15.0mm to 32.0mm, width range is 25.0mm to 40.0mm, and length range is 35.0mm to 58.0mm.
The second above-mentioned locking block comprises 27 the second lock cell holes, these 27 the second lock cell hole arranged distribution are on nine parallels, five warps, be provided with four the second lock cell holes on the first parallel, it is positioned on the second warp, the 3rd warp, the 4th warp and Five Classics line successively; Be provided with two the second lock cell holes on the second parallel, it is positioned on the 3rd warp and the 4th warp successively; Be respectively arranged with four the second lock cell holes on the 3rd parallel, the 5th parallel and the 7th parallel, it all is positioned on the first warp, the second warp, the 4th warp and Five Classics line successively; Be respectively arranged with second a lock cell hole on the 4th parallel, the 6th parallel and the 8th parallel, it all is positioned on the 3rd warp; Be provided with two the second lock cell holes on the 9th parallel, it is positioned on the second warp and the 4th warp successively; The both sides in the second lock cell hole on described the 4th parallel and the 6th parallel form respectively Ω type groove; Described the 3rd parallel, the 5th parallel and the 7th parallel from left to right the thickness of the 4th the second lock cell hole plate body of living in be first three second lock cell hole plate body of living in thickness 50% to 70%.
The top of the second above-mentioned location block offers upper hole, block location, one second location, and its underpart offers lower hole, block location, one second location, and the thickness range of the second location block is 15.0mm to 32.0mm, and width range is 5.0mm to 18.0mm.
The front projection of above-mentioned the 3rd locking block is a crooked curved surface to the right, and its left side projection is a bandy curved surface, and the thickness range of the 3rd locking block is 15.0mm to 32.0mm, and width range is 5.0mm to 18.0mm.
Compared with prior art, the right blade plate of the present invention, screw and guide thimble, right blade plate are 0 ° to 9 ° torsion clockwise along axis, and the vertical section, axis of this right blade plate is the arc-shaped curved surface that seamlessly transits; Right blade plate is divided into the first locking block, the first location block, the second locking block, the second location block and the 3rd locking block from top to bottom successively, on the first locking block, the second locking block, the 3rd locking block respectively corresponding being shaped with can be 0 ° of first lock cell hole to 25 ° of angles, the second lock cell hole and the 3rd lock hole with described right blade plate surface with screw wears that accessory connects; All be shaped with the lockhole female thread on the first lock cell hole, the second lock cell hole, the 3rd lock hole internal face; All be shaped with the external screw thread suitable with the lockhole female thread on above-mentioned screw and guide thimble.The invention has the advantages that, it meets acetabular bone three posts/twin columns front-back anatomical features, avoids repeatedly moulding in operation, saves operating time, reduces intraoperative blood loss, reduces anesthesia duration, reduces infection chance, reduces operation risk; Right blade plate reverses clockwise along axis, and the vertical section, axis of right blade plate is the arc-shaped curved surface that seamlessly transits, its structure meets human anatomy and biomechanics characteristic more, tightr with the laminating of acetabular bone surface, more be conducive to blade plate and bear acetabular bone load, thereby be conducive to the healing in affected part, increase the success rate of fracture internal fixation operation, ensure that the patient gets well as early as possible.This right blade plate has plurality of specifications, different sexes, age, Skeletal size, shape that can basis be selected, three locking blocks and two location blocks are set on right blade plate, and the lock hole that arranges on the locking block and right blade plate surface are 0 ° to 25 ° angle, the distribution of lock hole meets " load is shared " and " neutral principle " fixing in biomechanics, the screw stress distribution of fracture end is even, can effectively prevent screw loosening, fracture, reduce that the anaphase of bone fracture is loosening, the complication such as stress shielding of displacement, pain and bone.
In addition, lock hole design versatility is good, and lock screw and plain screw all can be applied; And adopt the design of lockhole female thread in lock hole, make the lock hole of screw and right blade plate tightly lock and form stable supporting construction, prevent the sclerite of pulverizing displacement, keep good interior constant intensity; And the configuration guide thimble can guarantee the accuracy of boring direction when right blade plate 1 fixedly.
Description of drawings
Fig. 1 is the front schematic view of the right blade plate of the embodiment of the present invention;
Fig. 2 is the perspective view of the right blade plate of the embodiment of the present invention;
Fig. 3 is the structural representation of the second locking block in Fig. 1;
Fig. 4 is that schematic diagram is looked on the left side of Fig. 1;
Fig. 5 is the structural representation of guide thimble in the embodiment of the present invention;
Fig. 6 is the upward view of Fig. 5;
Fig. 7 is the structural representation of lock screw in the embodiment of the present invention.
The specific embodiment
Embodiment is described in further detail the present invention below in conjunction with accompanying drawing.
as shown in Figures 1 to 7, figure grade is described as follows: right blade plate 1, lockhole female thread 11, lock screw 2, union joint 21, the first external screw thread 22, self tapping groove 23, guide thimble 3, pilot hole 3a, working head 31, the second external screw thread 32, handle 33, annular knurl stricture of vagina 33a, the first locking block a, the first lock cell hole a1, the first location block b, the first location block positioning screw hole b1, the first location block locating hole b2, the second locking block c, the second lock cell hole c1, Ω type groove c2, the second location block d, the second upper hole d1 in block location, location, the second lower hole d2 in block location, location, the 3rd locking block e, the 3rd lock hole e1, the first warp J1, the second warp J2, the 3rd warp J3, the 4th warp J4, Five Classics line J5, the first parallel W1, the second parallel W2, the 3rd parallel W3, the 4th parallel W4, the 5th parallel W5, the 6th parallel W6, the 7th parallel W7, the 8th parallel W8, the 9th parallel W9.
A kind of universal acetabular bone rear dissection bone plate for locking, the guide thimble 3 that includes right blade plate 1, screw and be used for the pilot bore hole direction, the mirror-image structure of described right blade plate 1 is left blade plate, below explanation is all take right blade plate 1 as example, operation for right blade plate 1 all is applicable to left blade plate, can use separately right blade plate 1 or left blade plate during use, but also both use simultaneously; Right blade plate 1 is 0 ° to 9 ° torsion clockwise along axis, the vertical section, axis of this right blade plate 1 is the arc-shaped curved surface that seamlessly transits, right blade plate 1 is divided into the first locking block a, the first location block b, the second locking block c, the second location block d and the 3rd locking block e that is arcuate structure from top to bottom successively, and described the first locking block a, the first location block b, the second locking block c, the second location block d and the 3rd locking block e are positioned at A district, B district, C district, D district and E district successively; Be shaped with and can wear the first lock cell hole a1 that accessory connects with screw on the first locking block a, be shaped with the second lock cell hole c1 on the second locking block c, be shaped with the 3rd lock hole e1 on the 3rd locking block e, the first lock cell hole a1, the second lock cell hole c1 and the 3rd locking block e all are 0 ° to 25 ° angle with right blade plate 1 surface; All be shaped with lockhole female thread 11 on the first lock cell hole a1, the second lock cell hole c1, the 3rd lock hole e1 internal face; Screw head is shaped with union joint 21, and the periphery of union joint 21 is shaped with the first external screw thread 22, and this first external screw thread 22 can spin and coordinate with described lockhole female thread 11; Guide thimble 3 bottoms are shaped with working head 31, and the periphery of working head 31 is shaped with the second external screw thread 32, and this second external screw thread 32 can spin and coordinate with described lockhole female thread 11, is shaped with pilot hole 3a on the axis of described guide thimble 3.
as shown in Figure 1, have 6 Region Segmentation lines in figure, article one, cut-off rule is a tangent line on the first locking block a top, the second cut-off rule is a tangent line on the first block positioning screw hole b1 top, location in the first location block b, article three, cut-off rule is a tangent line of the first block locating hole b2 bottom, location in the first location block b, article four, cut-off rule is a tangent line on the second upper d1 top, hole, block location, location in the second location block d, article five, cut-off rule is a tangent line of the second lower d2 bottom, hole, block location, location in the second location block d, article five, cut-off rule is a tangent line of the 3rd locking block e lower end, article one cut-off rule and the 3rd the folded part of cut-off rule of being positioned at second cut-off rule top are the A district, second cut-off rule and the 3rd the folded part of cut-off rule are the B district, article three, cut-off rule and the 4th the folded part of cut-off rule are the C district, article four, cut-off rule and the 5th the folded part of cut-off rule are the D district, and the 5th cut-off rule and the 6th the folded part of cut-off rule are the E district.
As shown in Figure 4, the left side of right blade plate 1 is looked on schematic diagram and is formed respectively the A1 district corresponding to above-mentioned subregion, B1 district, C1 district, D1 district and E1 district.The first locking block a is positioned at A1 district, the first location block b and is positioned at B1 district, the second locking block c and is positioned at C1 district, second and locates block d and be positioned at D1 district and the 3rd and lock block e and be positioned at the E1 district, because right blade plate 1 is 0 ° to 9 ° torsion clockwise along axis, observe from left side, the first locking block a only can see sidewall, and the 3rd lock hole e1 on the second lock cell hole c1 of the second locking block c and the 3rd locking block e also can observe in Fig. 4.
Blade plate integral body consists of continuous curve surface, from top view, as Fig. 1, the first locking block a, the second locking block c and the 3rd curved structure of locking block e, and the first locking block a and the second locking block c filter by the first location block b arc, filter by the second location block d arc between the second locking block c and the 3rd locking block e; Observe from left side, as Fig. 4, whole plate body is three sections continuously and seamlessly transits arcuate structure, wherein, the first locking block a and the first location block b form the arcuate structure on top, the second locking block c forms the arcuate structure at middle part, and the second location block d and the 3rd locking block e form the arcuate structure of bottom.The curved-surface structure of blade plate meets the skeleton shape, can fit tightly with the acetabular bone surface.
In embodiment, guide thimble 3 tops are shaped with handle 33, and the periphery of this handle 33 is shaped with annular knurl stricture of vagina 33a, and the length of guide thimble 3 is 120mm to 200mm, and internal diameter is 2.1mm to 3.8mm, and external diameter is 4.2mm to 9.0mm.
In embodiment, union joint 21 tops of screw are shaped with the regular hexagon suitable with erecting tools or regular pentagon cavity, and the diameter of screw is 2.5mm to 4.5mm.
In embodiment, screw comprises lock screw 2 and plain screw, and the bottom of lock screw 2 is shaped with three self tapping grooves 23 that facilitate lock screw 2 to be screwed into, and the longitudinal axis of the tangent line of this self tapping groove 23 and described lock screw 2 is the angle of 45 ° to 60 °; The setting of self tapping groove 23 not only can facilitate being screwed into of lock screw 2, can also reduce the effect of stabbing to tissue, improves the screw thread hold.Plain screw namely is used for the general 3.5mm screw of fracture internal fixation operation at present.
The circular gradual change in right blade plate 1 edge, minimizing is on the impact of joint capsule, ligament, tendon and muscle on every side, making the soft tissue such as its peripheral vessels be easy to growth covers, re-establish blood fortune, reduce plate body dead space on every side, reduce surrounding soft tissue is invaded and harassed, reduce the dissection of general steel plate sharpened edge to soft tissue, the myositis ossificans incidence rate that reduction causes because of organization of hematoma, the incidence rate of reduction nonunion or slow concrescence.
Lock hole design versatility is good, and lock screw 2 and plain screw all can be applied; And adopt 11 designs of lockhole female thread in lock hole, make the lock hole of screw and right blade plate 1 tightly lock and form stable supporting construction, prevent the sclerite of pulverizing displacement, keep good interior constant intensity; And configure guide thimble 3, can guarantee the accuracy of boring direction when right blade plate 1 is fixedly.
Below the location of left and right, the inside and outside direction in the explanation is all take the front schematic view of embodiment shown in Figure 1 as coordinate basis, the left side of left corresponding diagram 1, the right side of right corresponding diagram 1, take plane, Fig. 1 place as datum level, near outside observer's direction is, away from observer's direction be in.
The front projection of the first locking block a is a crooked curved surface left, its left side projection is a bandy curved surface, the quantitative range of the first lock cell hole a1 on the first locking block a is 1 to 10, the center of circle of the first lock cell hole a1 is distributed on the camber line in the same center of circle, the thickness range of the first locking block a is 15.0mm to 32.0mm, and width range is 5.0mm to 15.0mm.
As shown in Figure 1, in the present embodiment, the number of the first lock cell hole a1 is 7.According to the difference of the first lock cell hole a1 number, blade plate has plurality of specifications.
Right blade plate 1, according to the difference of the first lock cell hole a1 number, is divided into 10 models, and namely the model in 1 hole is R1, and the model in 2 holes is R2, and the model in 3 holes is R3 ... the model in 10 holes is R10; Accordingly, left blade plate also is divided into 10 models, and namely the model in 1 hole is L1, and the model in 2 holes is L2, and the model in 3 holes is L3 ... the model in 10 holes is L10; The blade plate of different model is applicable to different patients,Basically can adapt to all types of posterior wall of acetabulums/rear pillar fracture, not need to cut off plate body in installation process, both can save operating time, avoid again the damage to plate body.
The top of the first location block b offers one first location block positioning screw hole b1, its underpart is positioned at described the first block positioning screw hole b1 lower right, location and offers one first location block locating hole b2, the thickness range of the first location block b is 15.0mm to 32.0mm, and width range is 5.0mm to 15.0mm.Preliminary fixing when the first location block positioning screw hole b1 is used for the blade plate installation, the first location block locating hole b2 is used for definite acetabular bone upper limb, to guarantee the accuracy of installation site.
As shown in Figure 3, the front projection of the second locking block c is a crooked curved surface to the right, its left side projection is an aduncate curved surface, the second c1 center of circle, lock cell hole on the second locking block c is distributed on the sphere of the same centre of sphere, the thickness range of the second locking block c is 15.0mm to 32.0mm, width range is 25.0mm to 40.0mm, and length range is 35.0mm to 58.0mm.
The second locking block c comprises 27 the second lock cell hole c1, these 27 the second lock cell hole c1 arranged distribution are on nine parallels, five warps, be provided with four the second lock cell hole c1 on the first parallel W1, it is positioned on the second warp J2, the 3rd warp J3, the 4th warp J4 and Five Classics line J5 successively; Be provided with two the second lock cell hole c1 on the second parallel W2, it is positioned on the 3rd warp J3 and the 4th warp J4 successively; Be respectively arranged with four the second lock cell hole c1 on the 3rd parallel W3, the 5th parallel W5 and the 7th parallel W7, it all is positioned on the first warp J1, the second warp J2, the 4th warp J4 and Five Classics line J5 successively; Be respectively arranged with second a lock cell hole c1 on the 4th parallel W4, the 6th parallel W6 and the 8th parallel W8, it all is positioned on the 3rd warp J3; Be provided with two the second lock cell hole c1 on the 9th parallel W9, it is positioned on the second warp J2 and the 4th warp J4 successively; The both sides of the second lock cell hole c1 on described the 4th parallel W4 and the 6th parallel W6 form respectively Ω type groove c2; Described the 3rd parallel W3, the 5th parallel W5 and the 7th parallel W7 from left to right the thickness of the 4th the second lock cell hole c1 plate body of living in be first three second lock cell hole plate body of living in thickness 50% to 70%.
The second lock cell hole c1 is evenly distributed, and the second locking block c area coverage is larger, can be screwed into screw according to the selectivity that needs of bone fixation folded block in operation, and for the sclerite in small, broken bits that is difficult to be screwed into screw, the second lock cell hole c1 can stop osteocomma in small, broken bits, osteocomma is kept preferably resetted, prevent the skeleton loss.
Fixing the bear a heavy burden sclerite in district of acetabular bone after the screw of the first location block b and the second locking block c is screwed into, also fixing acetabular bone four border area sclerites, keeping bear a heavy burden district's articular surface and capital normal coupling relationship in a mutual action; Can keep simultaneously the stable of inboard, acetabular bone joint.For the first phase hip replacement, the case that the bone amount is less or the poor needs of sclerotin are overhauled, this blade plate can guarantee the stable of acetabular bone rear and inboard bone grafting.
The top of the second location block d offers one the second location upper hole d1 in block location, and its underpart offers the lower hole d2 in block location, one second location, and the thickness range of the second location block d is 15.0mm to 32.0mm, and width range is 5.0mm to 18.0mm.The second upper hole d1 in block location, location and the second lower hole d2 in block location, location are used for determining the acetabular bone lower edge, increase reset fixing accuracy and stability.
The front projection of the 3rd locking block e is a crooked curved surface to the right, its left side projection is a bandy curved surface, be provided with the 3rd a lock hole e1 on the 3rd locking block e, the thickness range of the 3rd locking block e is 15.0mm to 32.0mm, and width range is 5.0mm to 18.0mm.
This blade plate versatility is good, is applicable to the internal fixation operation of adult men and women's fracture of acetabulum.The clinical use advantage of this blade plate comprises: (1) relates to the fracture of bearing a heavy burden and distinguish in the acetabular bone top, especially the compression fracture of acetabular bone top area, need bone grafting to fill up the damaged patient of bone after resetting, this blade plate can be fixed free pulverizing bone, fixing plant bone mass effectively simultaneously, keep anatomical reduction, prevent the postoperative loss that resets.(2) the screw placement duct of default all directions on this blade plate, under the prerequisite that guarantees safety, realize that to posterior wall of acetabulum comminuted fracture piece locking is fixing reliably, prevents that bone cips is shifted again.(3), according to fixing needs in operation, can be screwed into lock screw 2 or plain screw, acetabular bone rear and inboard four border area sclerites are effectively fixed simultaneously.(4) after this blade plate is applicable to Replacement of Hip Joint, the case that need to overhaul, as bad or damaged in acetabular bone rear and inboard sclerotin.(5) for sufferers of osteoporosis face, this blade plate can be with the sclerotin steady lock of loosening.
Most preferred embodiment of the present invention is illustrated, and various variations or the remodeling made by those of ordinary skills can not depart from the scope of the present invention.
Claims (10)
1. universal acetabular bone rear dissection bone plate for locking, include right blade plate (1), screw and the guide thimble (3) that is used for the pilot bore hole direction, the mirror-image structure of described right blade plate (1) is left blade plate, it is characterized in that: described right blade plate (1) is 0 ° to 9 ° torsion clockwise along axis, the vertical section, axis of this right blade plate (1) is the arc-shaped curved surface that seamlessly transits, described right blade plate (1) is divided into the first locking block (a) that is arcuate structure from top to bottom successively, the first location block (b), the second locking block (c), the second location block (d) and the 3rd locking block (e), described the first locking block (a), the first location block (b), the second locking block (c), the second location block (d) and the 3rd locking block (e) are positioned at the A district successively, the B district, the C district, D district and E district, be shaped with and can wear at least one first lock cell hole (a1) that accessory connects with screw on described the first locking block (a), be shaped with at least one second lock cell hole (c1) on the second locking block (c), be shaped with the 3rd lock hole (e1) on the 3rd locking block (e), described the first lock cell hole (a1), the second lock cell hole (c1) and the 3rd locking block (e) all are 0 ° to 25 ° angle with right blade plate (1) surface,
All be shaped with lockhole female thread (11) on described the first lock cell hole (a1), the second lock cell hole (c1), the 3rd lock hole (e1) internal face;
Described screw head is shaped with union joint (21), and the periphery of described union joint (21) is shaped with the first external screw thread (22), and this first external screw thread (22) can spin and coordinate with described lockhole female thread (11);
Described guide thimble (3) bottom is shaped with working head (31), the periphery of described working head (31) is shaped with the second external screw thread (32), this second external screw thread (32) can spin and coordinate with described lockhole female thread (11), is shaped with pilot hole (3a) on the axis of described guide thimble (3).
2. a kind of universal acetabular bone according to claim 1 rear dissection bone plate for locking, it is characterized in that: described guide thimble (3) top is shaped with handle (33), the periphery of this handle (33) is shaped with annular knurl stricture of vagina (33a), the length of described guide thimble (3) is 120mm to 200mm, internal diameter is 2.1mm to 3.8mm, and external diameter is 4.2mm to 9.0mm.
3. a kind of universal acetabular bone according to claim 2 rear dissection bone plate for locking, it is characterized in that: the union joint of described screw (21) top is shaped with the regular hexagon suitable with erecting tools or regular pentagon cavity, and the diameter of described screw is 2.5mm to 4.5mm.
4. a kind of universal acetabular bone according to claim 3 rear dissection bone plate for locking, it is characterized in that: described screw comprises lock screw (2) and plain screw, the bottom of described lock screw (2) is shaped with three self tapping grooves (23) that facilitate lock screw (2) to be screwed into, and the longitudinal axis of the tangent line of this self tapping groove (23) and described lock screw (2) is the angle of 45 ° to 60 °.
5. a kind of universal acetabular bone according to claim 4 rear dissection bone plate for locking, it is characterized in that: the front projection of described the first locking block (a) is a crooked curved surface left, its left side projection is a bandy curved surface, the quantitative range in the first lock cell hole (a1) on described the first locking block (a) is 1 to 10, the center of circle in the first lock cell hole (a1) is distributed on the camber line in the same center of circle, the thickness range of described the first locking block (a) is 15.0mm to 32.0mm, and width range is 5.0mm to 15.0mm.
6. a kind of universal acetabular bone according to claim 4 rear dissection bone plate for locking, it is characterized in that: the top of described the first location block (b) offers one first location block positioning screw hole (b1), its underpart is positioned at described the first block positioning screw hole (b1) lower right, location and offers one first location block locating hole (b2), the thickness range of described the first location block (b) is 15.0mm to 32.0mm, and width range is 5.0mm to 15.0mm.
7. a kind of universal acetabular bone according to claim 4 rear dissection bone plate for locking, it is characterized in that: the front projection of described the second locking block (c) is a crooked curved surface to the right, its left side projection is an aduncate curved surface, second center of circle, lock cell hole (c1) on described the second locking block (c) is distributed on the sphere of the same centre of sphere, the thickness range of described the second locking block (c) is 15.0mm to 32.0mm, width range is 25.0mm to 40.0mm, and length range is 35.0mm to 58.0mm.
8. a kind of universal acetabular bone according to claim 7 rear dissection bone plate for locking, it is characterized in that: described the second locking block (c) comprises 27 the second lock cell holes (c1), these 27 the second lock cell hole (c1) arranged distribution are on nine parallels, five warps, be provided with four the second lock cell holes (c1) on the first parallel (W1), it is positioned on the second warp (J2), the 3rd warp (J3), the 4th warp (J4) and Five Classics line (J5) successively; Be provided with two the second lock cell holes (c1) on the second parallel (W2), it is positioned on the 3rd warp (J3) and the 4th warp (J4) successively; Be respectively arranged with four the second lock cell holes (c1) on the 3rd parallel (W3), the 5th parallel (W5) and the 7th parallel (W7), it all is positioned on the first warp (J1), the second warp (J2), the 4th warp (J4) and Five Classics line (J5) successively; Be respectively arranged with second a lock cell hole (c1) on the 4th parallel (W4), the 6th parallel (W6) and the 8th parallel (W8), it all is positioned on the 3rd warp (J3); Be provided with two the second lock cell holes (c1) on the 9th parallel (W9), it is positioned on the second warp (J2) and the 4th warp (J4) successively; The both sides in the second lock cell hole (c1) on described the 4th parallel (W4) and the 6th parallel (W6) form respectively Ω type groove (c2); Described the 3rd parallel (W3), the 5th parallel (W5) and the 7th parallel (W7) from left to right the thickness of the 4th the second lock cell hole (c1) plate body of living in be first three second lock cell hole plate body of living in thickness 50% to 70%.
9. a kind of universal acetabular bone according to claim 4 rear dissection bone plate for locking, it is characterized in that: the top of described the second location block (d) offers upper hole (d1), block location, one second location, its underpart offers lower hole (d2), block location, one second location, the thickness range of described the second location block (d) is 15.0mm to 32.0mm, and width range is 5.0mm to 18.0mm.
10. a kind of universal acetabular bone according to claim 4 rear dissection bone plate for locking, it is characterized in that: the front projection of described the 3rd locking block (e) is a crooked curved surface to the right, its left side projection is a bandy curved surface, the thickness range of described the 3rd locking block (e) is 15.0mm to 32.0mm, and width range is 5.0mm to 18.0mm.
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| CN201310371875.8A CN103393460B (en) | 2013-08-23 | 2013-08-23 | Universal posterior locking anatomic bone fracture plate for acetabulum |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105078559A (en) * | 2015-09-25 | 2015-11-25 | 李明 | General acetabulum back wall dissecting and locking bone plate |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050107796A1 (en) * | 2003-09-29 | 2005-05-19 | Darin Gerlach | Bone plates and methods for provisional fixation using same |
| CN201085674Y (en) * | 2007-10-26 | 2008-07-16 | 李西成 | Conformal steel plate for fixation of fracture for fracture of acetabulum |
| CN201211223Y (en) * | 2008-06-19 | 2009-03-25 | 李明 | Anatomic acetabulum back-wall post-pillar steel plate |
| CN201409977Y (en) * | 2009-04-02 | 2010-02-24 | 镱钛科技股份有限公司 | Bone lamella applicable to hip |
| CN101953712A (en) * | 2010-10-21 | 2011-01-26 | 李明 | Semi-self-locking acetabulum posterior wall and posterior column anatomical plate |
| CN101972162A (en) * | 2010-10-21 | 2011-02-16 | 李明 | Self-locking acetabular posterior-wall posterior-column anatomical steel plate |
| CN203436383U (en) * | 2013-08-23 | 2014-02-19 | 李明 | General-type locking and dissecting bone fracture plate for rear portion of acetabulum |
-
2013
- 2013-08-23 CN CN201310371875.8A patent/CN103393460B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050107796A1 (en) * | 2003-09-29 | 2005-05-19 | Darin Gerlach | Bone plates and methods for provisional fixation using same |
| CN201085674Y (en) * | 2007-10-26 | 2008-07-16 | 李西成 | Conformal steel plate for fixation of fracture for fracture of acetabulum |
| CN201211223Y (en) * | 2008-06-19 | 2009-03-25 | 李明 | Anatomic acetabulum back-wall post-pillar steel plate |
| CN201409977Y (en) * | 2009-04-02 | 2010-02-24 | 镱钛科技股份有限公司 | Bone lamella applicable to hip |
| CN101953712A (en) * | 2010-10-21 | 2011-01-26 | 李明 | Semi-self-locking acetabulum posterior wall and posterior column anatomical plate |
| CN101972162A (en) * | 2010-10-21 | 2011-02-16 | 李明 | Self-locking acetabular posterior-wall posterior-column anatomical steel plate |
| CN203436383U (en) * | 2013-08-23 | 2014-02-19 | 李明 | General-type locking and dissecting bone fracture plate for rear portion of acetabulum |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105078559A (en) * | 2015-09-25 | 2015-11-25 | 李明 | General acetabulum back wall dissecting and locking bone plate |
| CN105078559B (en) * | 2015-09-25 | 2017-06-23 | 李明 | A kind of universal posterior wall of acetabulum dissects locking bone fracture plate |
| US10420595B2 (en) * | 2015-09-25 | 2019-09-24 | Li Ming | Universal self-locking anatomical plate for posterior of acetabulum and pelvis |
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|---|---|
| CN103393460B (en) | 2015-04-01 |
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