CN206729962U - Fixator for lumbar spinal fusion - Google Patents

Abstract

Fixator for lumbar spinal fusion,Including upper pedicle screw,Lower pedicle screw,Lateral joint is dashed forward screw,Triangle fixed mount,Screw guide cylinder and guide plate,Triangle fixed mount includes upper locking cap,Lower locking cap,The oblique locking cap in left side,Upper lateral connection post,The oblique connecting pole of vertical connecting pole and left side down,The left end of upper lateral connection post is fixedly connected with the oblique locking cap in left side,The right-hand member of upper lateral connection post is fixedly connected with upper locking cap,The upper end of vertical connecting pole is fixedly connected with upper locking cap down,The lower end of vertical connecting pole is fixedly connected with lower locking cap down,The lower end of the oblique connecting pole in left side is fixedly connected with lower locking cap,The upper end of the oblique connecting pole in left side is fixedly connected with the oblique locking cap in left side,Upper pedicle screw,Lower pedicle screw and the prominent screw of lateral joint form stable triangular fixed relationship,Reach the purpose of fixation,Realize Minimally Invasive Surgery,Procedure efficiency greatly improves.

Description

Fixator for lumbar spinal fusion

Technical field

It the utility model is related to a kind of fixator for lumbar spinal fusion.

Background technology

As modern society's life mode changes, the long-term sedentary of office clan, cause the protrasion of the lumbar intervertebral disci, disk source property The disease such as pain in the back and lumbar instability is more and more.If expectant treatment is invalid, it is necessary to operative treatment.Lumbar spinal fusion extensive use The diseases such as the protrasion of the lumbar intervertebral disci, disk source property pain in the back and lumbar instability are treated, the fixator for needing intensity high in therapeutic process is consolidated Fixed, existing fixator is made up of two simple screws and a very thin conventional metals rod, and this traditional classics are fixed Mode is not very firm, and needs all to peel off the bilateral muscle of human body, is then fixed respectively by two groups of fixators, Bear patient painful larger, Minimally Invasive Surgery can not be realized, screw easily wanders off when screwing in fixed, and accuracy rate is not high, holds Easily put by mistake, cause spinal cord, nerve root equivalent damage.

The content of the invention

For above-mentioned technical problem, the utility model provides a kind of：Fixation, side muscle, which are peeled off, can be achieved The painful smaller, screw that fixed, patient bears inserts accuracy rate height, is not easy to put and can realize for lumbar vertebrae melting for Minimally Invasive Surgery by mistake Close the fixator of art.

In order to solve the above technical problems, the utility model uses following technical scheme：For the fixator of lumbar spinal fusion, It is described including upper pedicle screw, lower pedicle screw, lateral joint prominent screw, triangle fixed mount, screw guide cylinder and guide plate Triangle fixed mount include upper locking cap, lower locking cap, the oblique locking cap in left side, upper lateral connection post, lower vertical connecting pole and The oblique connecting pole in left side, distribution triangular in shape between fixed cap, lower locking cap and left side locking cap, the upper transverse direction The left end of connecting pole is fixedly connected with the oblique locking cap in left side, and the right-hand member of the upper lateral connection post is fixed with upper locking cap to be connected Connect, the upper end of the lower vertical connecting pole is fixedly connected with upper locking cap, the lower end of the lower vertical connecting pole and lower locking cap It is fixedly connected, the lower end of the oblique connecting pole in left side is fixedly connected with lower locking cap, the upper end of the oblique connecting pole in left side It is fixedly connected with the oblique locking cap in left side, the outer ring of fixed cap is provided with upper locking cap external screw thread, fixed cap Endoporus be provided with upper locking cap internal thread, the outer ring of the lower locking cap is provided with lower locking cap external screw thread, the lower fixation The endoporus of cap is provided with lower locking cap internal thread, and the outer ring of the oblique locking cap in left side is provided with the outer spiral shell of the oblique locking cap in left side Line, the endoporus of the oblique locking cap in left side are provided with the oblique locking cap internal thread in left side, and the upper pedicle screw includes upper Pedicle screw cancellous bone self tapping section and upper pedicle screw canned paragraph, the top of the upper pedicle screw canned paragraph is provided with upper Pedicle screw countersunk head inner hexagonal hole, the upper pedicle screw cancellous bone self tapping section are provided with the outer spiral shell of upper pedicle screw self tapping Line, the upper pedicle screw canned paragraph are provided with upper pedicle screw and fix external screw thread, and the upper pedicle screw is fixed outer Screw thread matches with upper locking cap internal thread, and the lower pedicle screw includes lower pedicle screw cancellous bone self tapping section and lower vertebra Pedicle screw canned paragraph, the top of the lower pedicle screw canned paragraph is provided with lower pedicle screw countersunk head inner hexagonal hole, described Lower pedicle screw cancellous bone self tapping section is provided with lower pedicle screw from external threading, the lower pedicle screw canned paragraph External screw thread is fixed provided with lower pedicle screw, the lower pedicle screw is fixed external screw thread and matched with lower locking cap internal thread, The prominent screw of the lateral joint includes the prominent screw cancellous bone self tapping section of lateral joint and the prominent screw canned paragraph of lateral joint, and the lateral joint is dashed forward The top of screw canned paragraph is provided with the prominent screw countersunk head inner hexagonal hole of lateral joint, the prominent screw cancellous bone self tapping Duan Shangshe of the lateral joint There is lateral joint to dash forward screw from external threading, the prominent screw canned paragraph of the lateral joint is provided with the prominent screw fixation external screw thread of lateral joint, The prominent screw of the lateral joint is fixed external screw thread and matched with the oblique locking cap internal thread in left side, the upper pedicle screw cancellous bone The length of self tapping section be more than upper pedicle screw canned paragraph length, the upper pedicle screw cancellous bone self tapping section it is big slight In the size of upper pedicle screw canned paragraph, the size of the upper pedicle screw cancellous bone self tapping section is less than the interior of upper locking cap The size in hole, the length of the lower pedicle screw cancellous bone self tapping section is more than the length of lower pedicle screw canned paragraph, described The size of lower pedicle screw cancellous bone self tapping section is less than the size of lower pedicle screw canned paragraph, the lower pedicle screw pine The size of matter bone self tapping section is less than the size of the endoporus of lower locking cap, and the length of the prominent screw cancellous bone self tapping section of the lateral joint is big Dashed forward in lateral joint the length of screw canned paragraph, the dash forward size of screw cancellous bone self tapping section of the lateral joint is less than lateral joint and dashed forward screw The size of canned paragraph, the size of the prominent screw cancellous bone self tapping section of the lateral joint are less than the big of the endoporus of the oblique locking cap in left side Small, the screw guide cylinder includes positioning section screw guide cylinder and construction section screw guide cylinder, the construction section screw guide cylinder Length be more than the length of positioning section screw guide cylinder, the size of the construction section screw guide cylinder is more than positioning section screw guiding The size of cylinder, the endoporus of the construction section screw guide cylinder are provided with construction section screw guide cylinder internal thread, the positioning section spiral shell The endoporus of nail guide cylinder is provided with positioning section screw guide cylinder internal thread, and the upper pedicle screw fixes external screw thread and upper fixation Cap internal thread matches, and the lower pedicle screw is fixed external screw thread and matched with lower locking cap internal thread, and the lateral joint is dashed forward Screw is fixed external screw thread and matched with the oblique locking cap internal thread in left side, the upper pedicle screw fixation external screw thread, it is described under Pedicle screw fixes external screw thread and the prominent screw of lateral joint is fixed external screw thread and matched with positioning section screw guide cylinder internal thread, Fixed cap external screw thread, the oblique locking cap external screw thread of lower locking cap external screw thread and left side with construction section screw guide cylinder Screw thread matches, and the guide plate is provided with guide plate oblique through hole, the upper pedicle of vertebral arch on the left of through hole, guide plate lower through-hole and guide plate Screw cancellous bone self tapping section may pass through through hole on guide plate, and the lower pedicle screw cancellous bone self tapping section may pass through leads under guide plate Hole, the prominent screw cancellous bone self tapping section of the lateral joint may pass through oblique through hole on the left of guide plate, and the guide plate includes upper guide plate, lower-left Guide plate and bottom right guide plate, it is detachably connected between the upper guide plate, lower-left guide plate and bottom right guide plate three, leads on the guide plate Hole position on the junction between upper guide plate, lower-left guide plate and bottom right guide plate three, positioned at lower-left lead by the guide plate lower through-hole On junction between plate and bottom right guide plate, connection of the oblique through hole between upper guide plate and lower-left guide plate on the left of the guide plate In place, the bottom of fixed cap is provided with upper locking cap flange collar, and the bottom of the lower locking cap is provided with lower locking cap flange collar, institute State through hole on guide plate and be provided with the recessed circle of through hole on guide plate, the guide plate lower through-hole is provided with the recessed circle of guide plate lower through-hole, described solid Determine cap flange collar with the recessed circle of through hole on guide plate to match, the lower locking cap flange collar matches with the recessed circle of guide plate lower through-hole, the left side Bottom guide is provided with the first lower-left guide plate grab and the second lower-left guide plate grab, and the bottom right guide plate is provided with bottom right guide plate card Hook, bottom right guide plate hole clipping and bottom right guide plate removal hole, the upper guide plate are provided with the first upper guide plate hole clipping, the second upper guide plate card Hole, the first upper guide plate removal hole and the second upper guide plate removal hole, the first lower-left guide plate grab and the first upper guide plate hole clipping phase Coordinate, the second lower-left guide plate grab is engaged with bottom right guide plate hole clipping, the bottom right guide plate grab and the second upper guide plate card Hole is engaged, and the bottom right guide plate hole clipping connects with bottom right guide plate removal hole, and the first upper guide plate hole clipping on first with leading Plate removal hole is connected, and the second upper guide plate hole clipping is connected with the second upper guide plate removal hole, and the upper guide plate is led with lower-left The left side of plate is provided with left groove, and the left groove is connected spring provided with left side, on the left side of the upper guide plate Provided with gib head on the left of upper guide plate, the left side of the lower-left guide plate is provided with gib head on the left of the guide plate of lower-left, and the left side is connected One end of spring is hooked on the left of upper guide plate on gib head, and the be connected other end of spring of the left side is hooked in hook on the left of the guide plate of lower-left On head, the right side of the upper guide plate and bottom right guide plate is provided with right groove, and the right groove is connected provided with right side Spring, the right side of the upper guide plate are provided with gib head on the right side of upper guide plate, and the right side of the bottom right guide plate is provided with the bottom right guide plate right side Side gib head, be connected one end of spring of the right side are hooked on the right side of upper guide plate on gib head, and the right side is connected spring The other end is hooked on the right side of the guide plate of bottom right on gib head, and the downside of the lower-left guide plate and bottom right guide plate is provided with downside groove, described Downside groove is connected spring provided with downside, and the downside of the lower-left guide plate is provided with gib head on the downside of the guide plate of lower-left, described The downside of bottom right guide plate is provided with gib head on the downside of the guide plate of bottom right, and be connected one end of spring of the downside is hooked under the guide plate of lower-left On the gib head of side, the be connected other end of spring of the downside is hooked on the downside of bottom right guide plate on gib head.

The beneficial effect of fixator provided by the utility model for lumbar spinal fusion is：Guide plate is placed on trouble during use With person, the compactness of guide plate is higher, and positioning is more accurate, and triangle fixed mount is arranged on guide plate, on triangle fixed mount Upper locking cap flange collar insertion guide plate in the recessed circle of through hole, the lower locking cap flange collar insertion guide plate lower through-hole on triangle fixed mount In recessed circle, realize that the positioning of triangle fixed mount will not be subjected to displacement,

When upper pedicle screw is fixed on lumbar vertebrae, first screw guide cylinder is arranged on upper locking cap, screw guide cylinder It is to coordinate to realize that screw guide cylinder is fixed with upper locking cap external screw thread by construction section screw guide cylinder internal thread, then by upper vertebra Pedicle screw on screw guide cylinder, fix external screw thread and match with positioning section screw guide cylinder internal thread by upper pedicle screw Close, pedicle screw moves down along screw guide cylinder in formation, pedicle screw is not wandered off when screwing in fixed, accurate True rate greatly improves, and will not by mistake put, avoid spinal cord, nerve root equivalent damage, after upper pedicle screw is screwed into bottom soon, upper pedicle of vertebral arch screw The fixed external screw thread of nail depart from positioning section screw guide cylinder internal thread and with upper locking cap screw-internal thread fit, realize that pedicle screw is consolidated Finally screw guide cylinder is pulled down from upper locking cap, similarly descends pedicle screw and side on triangle fixed mount in Dingan County Interarticular screw also in this way, will not be wandered off when realizing and screwing in fixed when fixed, accuracy rate greatly improves, and will not be missed Put, pedicle screw countersunk head inner hexagonal hole, lower pedicle screw countersunk head inner hexagonal hole and lateral joint are dashed forward in screw countersunk head in setting Hexagon ring is easier for installation, by setting be connected spring, right side of left side to be connected spring and downside is connected bullet Spring so that there are more reconnections, the entirety of guide plate is more firm, and left between upper guide plate, lower-left guide plate and bottom right guide plate Be connected spring, right side of side is connected spring and the downside spring dismounting that is connected is very convenient, wherein left side connection is solid Spring is determined in the left groove so that the left side spring installation that is connected is more firm, will not be subjected to displacement, right side connection Fixed spring is arranged in right groove so that the right side spring installation that is connected is more firm, will not be subjected to displacement, downside connects Fixed spring is connect on the groove of downside so that the downside spring installation that is connected is more firm, will not be subjected to displacement,

After upper pedicle screw, lower pedicle screw and lateral joint dash forward screw all on triangle fixed mount, Guide plate is pulled down, and be connected spring, right side of left side first is connected into spring and the downside spring that is connected is pulled down during dismounting, so The first lower-left guide plate grab top is opened from the first upper guide plate removal hole insertion fine needle afterwards so that the first lower-left guide plate grab and first Upper guide plate hole clipping releases locking, opens bottom right guide plate grab top from the second upper guide plate removal hole insertion fine needle so that bottom right guide plate Grab and the second upper guide plate hole clipping release locking, open the second lower-left guide plate grab top from bottom right guide plate removal hole insertion fine needle, So that the second lower-left guide plate grab releases locking with bottom right guide plate hole clipping, so as to which guide plate is divided into upper guide plate, lower-left guide plate and the right side Bottom guide is dismantled, and can so be positioned, and and can, which avoids guide plate from staying in, influences health in patient body,

It should also be noted that, the side muscle of human body need to only be peeled off, you can realize fixed and lateral solid up and down It is fixed, realized by upper pedicle screw and lower pedicle screw and fixed up and down, entering the prominent screw of lateral joint by a side realizes side To fixation, the prominent screw of upper pedicle screw, lower pedicle screw and lateral joint is connected by triangle fixed mount, forms three The stable fixed relationship in angle, reaches the purpose of fixation, realizes Minimally Invasive Surgery, substantially reduce the pain that patient bears, perform the operation Efficiency greatly improves.

Further include it is upper reinforcing nut, it is lower reinforcing nut and side reinforce nut, it is described it is upper reinforcing nut with, it is described on Reinforce nut, lower reinforcing nut and side to reinforce on nut and be equipped with countersunk head inner hexagonal hole, the upper reinforcing nut and upper locking cap It is engaged, the lower reinforcing nut is engaged with lower locking cap, and the side reinforces nut and is engaged with the oblique locking cap in left side, makes Obtain to install respectively on upper locking cap, the oblique locking cap of lower locking cap and left side and reinforce nut, lower reinforcing nut and side reinforcing Intensity is higher after nut.

Further the guide plate turns up paster provided with upper arc and arc lower turns up paster so that guide plate compactness is more Height, locating effect are more preferable.

Further the upper lateral connection post includes square upper lateral connection post and semicircle upper lateral connection post, described With being fixedly connected at the top of square upper lateral connection post, the lower vertical connecting pole includes for the bottom of lateral connection post in semicircle Square lower vertical connecting pole and it is semicircle under vertical connecting pole, it is described it is semicircle under vertical connecting pole bottom with it is square lower vertical It is fixedly connected at the top of connecting pole, the oblique connecting pole in left side includes vertically connecting under the oblique connecting pole in square left side and semicircle Connect post, the semi-circular left skew back to the bottom of connecting pole with being fixedly connected at the top of the oblique connecting pole in square left side, this knot Structure make it that the bulk strength of triangle fixed mount is higher.

The utility model will be further described with reference to the accompanying drawings and detailed description.

Brief description of the drawings

Fig. 1 is the upper pedicle screw of the fixator provided by the utility model for lumbar spinal fusion, lower pedicle of vertebral arch screw One of structural representation of nail, lateral joint prominent screw, triangle fixed mount and guide plate；

Fig. 2 is the upper pedicle screw of the fixator provided by the utility model for lumbar spinal fusion, lower pedicle of vertebral arch screw The two of the structural representation of nail, lateral joint prominent screw, triangle fixed mount and guide plate；

Fig. 3 is the upper pedicle screw of the fixator provided by the utility model for lumbar spinal fusion, lower pedicle of vertebral arch screw Nail, lateral joint are dashed forward one of the structural representation of screw, triangle fixed mount, screw guide cylinder and guide plate；

Fig. 4 is the upper pedicle screw of the fixator provided by the utility model for lumbar spinal fusion, lower pedicle of vertebral arch screw Nail, lateral joint dash forward screw, triangle fixed mount, screw guide cylinder and guide plate structural representation two；

Fig. 5 is the upper pedicle screw of the fixator provided by the utility model for lumbar spinal fusion, lower pedicle of vertebral arch screw The prominent screw of nail, lateral joint, triangle fixed mount, the upper structural representation reinforced nut, lower reinforcing nut and side and reinforce nut；

Fig. 6 is the structural representation of the triangle fixed mount of the fixator provided by the utility model for lumbar spinal fusion One of；

Fig. 7 is the structural representation of the triangle fixed mount of the fixator provided by the utility model for lumbar spinal fusion Two；

Fig. 8 is one of structural representation of guide plate of fixator provided by the utility model for lumbar spinal fusion；

Fig. 9 is the two of the structural representation of the guide plate of the fixator provided by the utility model for lumbar spinal fusion；

Figure 10 is the structural representation of the screw guide cylinder of the fixator provided by the utility model for lumbar spinal fusion One of；

Figure 11 is the structural representation of the screw guide cylinder of the fixator provided by the utility model for lumbar spinal fusion Two；

Figure 12 is the structural representation of the upper pedicle screw of the fixator provided by the utility model for lumbar spinal fusion Figure；

Figure 13 is the structural representation of the lower pedicle screw of the fixator provided by the utility model for lumbar spinal fusion Figure；

Figure 14 is the structural representation of the prominent screw of lateral joint of the fixator provided by the utility model for lumbar spinal fusion Figure.

Embodiment

As shown in Fig. 1 to Figure 14, the embodiment of the fixator provided by the utility model for lumbar spinal fusion, including it is upper Pedicle screw 1, lower pedicle screw 2, lateral joint prominent screw 3, triangle fixed mount 4, screw guide cylinder 5 and guide plate 6, it is described Triangle fixed mount 4 includes upper locking cap 7, lower locking cap 8, the oblique locking cap 9 in left side, upper lateral connection post 10, lower vertically connected The oblique connecting pole 12 of post 11 and left side is connect, is in triangle between fixed cap 7, the oblique locking cap 9 of lower locking cap 8 and left side Shape is distributed, and the left end locking cap 9 oblique with left side of the upper lateral connection post 10 is fixedly connected, the upper lateral connection post 10 Right-hand member is fixedly connected with upper locking cap 7, and the upper end of the lower vertical connecting pole 11 is fixedly connected with upper locking cap 7, described lower perpendicular It is fixedly connected to the lower end of connecting pole 11 with lower locking cap 8, the lower end of the oblique connecting pole 12 in left side is fixed with lower locking cap 8 Connection, the upper end locking cap 9 oblique with left side of the oblique connecting pole 12 in left side are fixedly connected, the outer ring of fixed cap 7 Upper locking cap external screw thread 13 is provided with, the endoporus of fixed cap 7 is provided with upper locking cap internal thread 14, the lower locking cap 8 outer ring is provided with lower locking cap external screw thread 15, and the endoporus of the lower locking cap 8 is provided with lower locking cap internal thread 16, described The outer ring of the oblique locking cap 9 in left side is provided with the oblique locking cap external screw thread 17 in left side, on the endoporus of the oblique locking cap 9 in left side Provided with the oblique locking cap internal thread 18 in left side, the upper pedicle screw 1 includes the upper He of pedicle screw cancellous bone self tapping section 19 Upper pedicle screw canned paragraph 20, the top of the upper pedicle screw canned paragraph 20 are provided with hexagonal in upper pedicle screw countersunk head Hole 21, the upper pedicle screw cancellous bone self tapping section 19 are provided with upper pedicle screw from external threading 22, the upper vertebral arch Root screw canned paragraph 20 is provided with upper pedicle screw and fixes external screw thread 23, the upper pedicle screw fix external screw thread 23 with it is upper Locking cap internal thread 14 matches, and the lower pedicle screw 2 includes lower pedicle screw cancellous bone self tapping section 24 and lower vertebral arch Root screw canned paragraph 25, the top of the lower pedicle screw canned paragraph 25 are provided with lower pedicle screw countersunk head inner hexagonal hole 26, The lower pedicle screw cancellous bone self tapping section 24 is provided with lower pedicle screw from external threading 27, the lower pedicle screw Canned paragraph 25 is provided with lower pedicle screw and fixes external screw thread 28, and the lower pedicle screw fixes external screw thread 28 and lower locking cap Internal thread 16 matches, and the prominent screw 3 of the lateral joint includes the prominent screw cancellous bone self tapping section 29 of lateral joint and the prominent screw of lateral joint Canned paragraph 30, the top of the prominent screw canned paragraph 30 of the lateral joint are provided with the prominent screw countersunk head inner hexagonal hole 31 of lateral joint, the side Interarticular screw cancellous bone self tapping section 29 is provided with the prominent screw of lateral joint from external threading 32, the prominent screw canned paragraph of the lateral joint 30, which are provided with the prominent screw of lateral joint, fixes external screw thread 33, and the prominent screw of the lateral joint fixes external screw thread 33 and the oblique locking cap in left side Internal thread 18 matches, and the length of the upper pedicle screw cancellous bone self tapping section 19 is more than upper pedicle screw canned paragraph 20 Length, the size of the upper pedicle screw cancellous bone self tapping section 19 is less than the size of upper pedicle screw canned paragraph 20, described The size of upper pedicle screw cancellous bone self tapping section 19 is less than the size of the endoporus of upper locking cap 7, the lower pedicle screw pine The length of matter bone self tapping section 24 is more than the length of lower pedicle screw canned paragraph 25, the lower pedicle screw cancellous bone self tapping section 24 size be less than lower pedicle screw canned paragraph 25 size, the lower pedicle screw cancellous bone self tapping section 24 it is big slight In the size of the endoporus of lower locking cap 8, the length of the prominent screw cancellous bone self tapping section 29 of the lateral joint is more than the prominent screw of lateral joint The length of canned paragraph 30, the size of the prominent screw cancellous bone self tapping section 29 of the lateral joint are less than the prominent screw canned paragraph 30 of lateral joint Size, the size of the prominent screw cancellous bone self tapping section 29 of the lateral joint is less than the size of the endoporus of the oblique locking cap 9 in left side, described Screw guide cylinder 5 includes positioning section screw guide cylinder 34 and construction section screw guide cylinder 35, the construction section screw guide cylinder 35 Length be more than the length of positioning section screw guide cylinder 34, the size of the construction section screw guide cylinder 35 is more than positioning section screw The size of guide cylinder 34, the endoporus of the construction section screw guide cylinder 35 are provided with construction section screw guide cylinder internal thread 36, institute The endoporus for stating positioning section screw guide cylinder 34 is provided with positioning section screw guide cylinder internal thread 37, and the upper pedicle screw is fixed External screw thread 23 matches with upper locking cap internal thread 14, and the lower pedicle screw fixes external screw thread 28 and lower locking cap internal thread 16 match, and the prominent screw of the lateral joint is fixed external screw thread 33 and matched with the oblique locking cap internal thread 18 in left side, the upper vertebra Pedicle screw fixes external screw thread 23, the lower pedicle screw fixes external screw thread 28 and lateral joint is dashed forward, and screw fixation external screw thread 33 is equal Match with positioning section screw guide cylinder internal thread 37, fixed cap external screw thread 23, lower locking cap external screw thread 28 and left side Oblique locking cap external screw thread 33 matches with construction section screw guide cylinder internal thread 36, and the guide plate 6, which is provided with guide plate, to be led to Oblique through hole 40 on the left of hole 38, guide plate lower through-hole 39 and guide plate, the upper pedicle screw cancellous bone self tapping section 19, which may pass through, to be led Through hole 38 on plate, the lower pedicle screw cancellous bone self tapping section 24 may pass through guide plate lower through-hole 39, and the lateral joint is dashed forward screw Cancellous bone self tapping section 29, which may pass through oblique through hole 40, the guide plate 6 on the left of guide plate, includes upper guide plate 41, lower-left guide plate 42 and bottom right Guide plate 43, it is detachably connected between the upper guide plate 41, lower-left guide plate 42 and the three of bottom right guide plate 43, through hole on the guide plate On 38 junction between upper guide plate 41, lower-left guide plate 42 and the three of bottom right guide plate 43, the guide plate lower through-hole 39 On junction between lower-left guide plate 42 and bottom right guide plate 43, oblique through hole 40 is located at upper guide plate 41 and a left side on the left of the guide plate On junction between bottom guide 42, the bottom of fixed cap 7 is provided with upper locking cap flange collar 44, the lower locking cap 8 Bottom is provided with lower locking cap flange collar 45, and through hole 38 is provided with the recessed circle 46 of through hole on guide plate, the guide plate lower through-hole on the guide plate 39 are provided with the recessed circle 47 of guide plate lower through-hole, and the recessed circle of through hole matches 46 on fixed cap flange collar 44 and guide plate, described lower solid Determine the recessed circle of cap flange collar 45 and guide plate lower through-hole and match 47, the lower-left guide plate 42 is provided with the first lower-left guide plate grab 48 and the Two lower-left guide plate grabs 49, the bottom right guide plate 43 are provided with bottom right guide plate grab 50, bottom right guide plate hole clipping 51 and bottom right guide plate Removal hole 52, the upper guide plate 41 are provided with the first upper guide plate hole clipping 53, the second upper guide plate hole clipping 54, the first upper guide plate removal hole 55 and the second upper guide plate removal hole 56, the first lower-left guide plate grab 48 be engaged with the first upper guide plate hole clipping 53, described Two lower-left guide plate grabs 49 are engaged with bottom right guide plate hole clipping 51, the bottom right guide plate grab 50 and the phase of the second upper guide plate hole clipping 54 Coordinate, the bottom right guide plate hole clipping 51 connects with bottom right guide plate removal hole 52, in the first upper guide plate hole clipping 53 and first Guide plate removal hole 55 connects, and the second upper guide plate hole clipping 54 connects with the second upper guide plate removal hole 56, the upper guide plate 41 are provided with left groove with the left side of lower-left guide plate 42, and the left groove is connected spring a1 provided with left side, described The left side of upper guide plate 41 is provided with gib head on the left of upper guide plate, and the left side of the lower-left guide plate 42 is provided with hook on the left of the guide plate of lower-left Head, be connected spring a1 one end of the left side are hooked on the left of upper guide plate on gib head, and the left side is connected spring a1's The other end is hooked on the left of the guide plate of lower-left on gib head, and the right side of the upper guide plate 41 and bottom right guide plate 43 is provided with right groove, institute State right groove to be connected spring a2 provided with right side, the right side of the upper guide plate 41 is provided with gib head on the right side of upper guide plate, institute The right side for stating bottom right guide plate 43 is provided with gib head on the right side of the guide plate of bottom right, and be connected spring a2 one end of the right side is hooked in and led On the right side of plate on gib head, the be connected spring a2 other end of the right side is hooked on the right side of the guide plate of bottom right on gib head, and the lower-left is led The downside of plate 42 and bottom right guide plate 43 is provided with downside groove, and the downside groove is connected spring a3 provided with downside, institute The downside for stating lower-left guide plate 42 is provided with gib head on the downside of the guide plate of lower-left, and the downside of the bottom right guide plate 43 is provided with the guide plate of bottom right Side gib head, be connected spring a3 one end of the downside are hooked on the downside of lower-left guide plate on gib head, and the downside is connected bullet The spring a3 other end is hooked on the downside of the guide plate of bottom right on gib head.

When wherein upper guide plate 41, lower-left guide plate 42 and bottom right guide plate 43 connect as one, the left side is connected bullet Spring a1 one end is hooked on the left of upper guide plate on gib head, and the be connected spring a1 other end of the left side is hooked on the left of the guide plate of lower-left On gib head, be connected spring a2 one end of the right side is hooked on the right side of upper guide plate on gib head, and the right side is connected spring The a2 other end is hooked on the right side of bottom right guide plate on gib head, and be connected spring a3 one end of the downside is hooked on the downside of the guide plate of lower-left On gib head, the be connected spring a3 other end of the downside is hooked on the downside of bottom right guide plate on gib head.

When wherein needing to split upper guide plate 41, lower-left guide plate 42 and bottom right guide plate 43, be connected spring on the left of pull-up A1, right side are connected spring a2 and downside is connected, and spring a3 is pulled down.

Nut 59, the upper reinforcing nut 57, lower reinforcing spiral shell are reinforced including upper reinforcing nut 57, lower reinforcing nut 58 and side Cap 58 and side, which are reinforced on nut 59, is equipped with countersunk head inner hexagonal hole, and the upper reinforcing nut 57 is engaged with upper locking cap 7, described Lower reinforcing nut 58 is engaged with lower locking cap 8, and the side reinforces the locking cap 9 oblique with left side of nut 59 and is engaged, described to lead Plate 6 turns up paster 60 provided with upper arc and arc lower turns up paster 61, and the upper lateral connection post 10 includes square upper transverse direction Connecting pole 62 and semicircle upper lateral connection post 63, the bottom of the semicircle upper lateral connection post 63 and square upper lateral connection The top of post 62 is fixedly connected, and the lower vertical connecting pole 11 includes square lower vertical connecting pole 64 and semicircle lower vertical connection Post 65, it is described it is semicircle under the bottom of vertical connecting pole 65 be fixedly connected with the top of square lower vertically connecting pole 64, the left side Skew back includes vertical connecting pole 67 under the oblique connecting pole 66 in square left side and semicircle, the semi-circular left skew back to connecting pole 12 It is fixedly connected to the top of the bottom of connecting pole 67 connecting pole 66 oblique with square left side.

As needed, specific embodiment of the present utility model is disclosed herein, it will be appreciated that the disclosed embodiments Simply demonstrate the utility model, the utility model there can be different and alternative form to implement.Accompanying drawing is not necessarily drawn to scale.Cause This, concrete structure and function detail disclosed herein are understood not in a limiting sense, but are only used as representative base Plinth implements the utility model to instruct those skilled in the art to use.It is common based on the embodiment in the utility model, this area The every other embodiment that technical staff is obtained under the premise of creative work is not made, belong to the utility model protection Scope.

Claims (5)

1. the fixator for lumbar spinal fusion, it is characterised in that：Including upper pedicle screw (1), lower pedicle screw (2), Lateral joint is dashed forward screw (3), triangle fixed mount (4), screw guide cylinder (5) and guide plate (6), triangle fixed mount (4) bag Include locking cap (7), lower locking cap (8), the oblique locking cap in left side (9), upper lateral connection post (10), lower vertical connecting pole (11) It is in three between fixed cap (7), the oblique locking cap of lower locking cap (8) and left side (9) with the oblique connecting pole in left side (12) Angular distribution, the left end of the upper lateral connection post (10) are fixedly connected with the oblique locking cap in left side (9), the upper lateral connection The right-hand member of post (10) is fixedly connected with upper locking cap (7), and the upper end of the lower vertical connecting pole (11) and upper locking cap (7) are fixed Connection, the lower end of the lower vertical connecting pole (11) are fixedly connected with lower locking cap (8), the oblique connecting pole in left side (12) Lower end is fixedly connected with lower locking cap (8), and the upper end of the oblique connecting pole in left side (12) and the oblique locking cap in left side (9) are fixed Connection, the outer ring of fixed cap (7) is provided with upper locking cap external screw thread (13), set on the endoporus of fixed cap (7) There is upper locking cap internal thread (14), the outer ring of the lower locking cap (8) is provided with lower locking cap external screw thread (15), the lower fixation The endoporus of cap (8) is provided with lower locking cap internal thread (16), and the outer ring of the oblique locking cap in left side (9) is oblique provided with left side Locking cap external screw thread (17), the endoporus of the oblique locking cap in left side (9) are provided with the oblique locking cap internal thread (18) in left side, institute Stating pedicle screw (1) includes upper pedicle screw cancellous bone self tapping section (19) and upper pedicle screw canned paragraph (20), institute The top for stating pedicle screw canned paragraph (20) is provided with upper pedicle screw countersunk head inner hexagonal hole (21), the upper pedicle of vertebral arch screw Follow closely cancellous bone self tapping section (19) and be provided with upper pedicle screw from external threading (22), the upper pedicle screw canned paragraph (20) It is provided with upper pedicle screw and fixes external screw thread (23), the upper pedicle screw fixes external screw thread (23) and spiral shell in upper locking cap Line (14) matches, and the lower pedicle screw (2) includes lower pedicle screw cancellous bone self tapping section (24) and lower pedicle of vertebral arch screw Canned paragraph (25) is followed closely, the top of the lower pedicle screw canned paragraph (25) is provided with lower pedicle screw countersunk head inner hexagonal hole (26), the lower pedicle screw cancellous bone self tapping section (24) is provided with lower pedicle screw from external threading (27), under described Pedicle screw canned paragraph (25) is provided with lower pedicle screw and fixes external screw thread (28), and the lower pedicle screw fixes outer spiral shell Line (28) matches with lower locking cap internal thread (16), the lateral joint dash forward screw (3) include lateral joint dash forward screw cancellous bone from Section (29) and the prominent screw canned paragraph (30) of lateral joint are attacked, the top of the prominent screw canned paragraph (30) of the lateral joint is dashed forward provided with lateral joint Screw countersunk head inner hexagonal hole (31), the prominent screw cancellous bone self tapping section (29) of the lateral joint are provided with lateral joint and dashed forward outside screw self tapping Screw thread (32), the lateral joint dash forward screw canned paragraph (30) provided with the prominent screw fixation external screw thread (33) of lateral joint, and the side is closed The prominent screw of section is fixed external screw thread (33) locking cap internal thread (18) oblique with left side and matched, the upper pedicle screw cancellous bone The length of self tapping section (19) is more than the length of upper pedicle screw canned paragraph (20), the upper pedicle screw cancellous bone self tapping section (19) size is less than the size of upper pedicle screw canned paragraph (20), the upper pedicle screw cancellous bone self tapping section (19) Size is less than the size of the endoporus of upper locking cap (7), under the length of the lower pedicle screw cancellous bone self tapping section (24) is more than The length of pedicle screw canned paragraph (25), the size of the lower pedicle screw cancellous bone self tapping section (24) are less than lower pedicle of vertebral arch The size of screw canned paragraph (25), the size of the lower pedicle screw cancellous bone self tapping section (24) are less than lower locking cap (8) The size of endoporus, the length of the prominent screw cancellous bone self tapping section (29) of the lateral joint are more than the prominent screw canned paragraph (30) of lateral joint Length, the size of the prominent screw cancellous bone self tapping section (29) of the lateral joint are less than the size of the prominent screw canned paragraph (30) of lateral joint, The size of the prominent screw cancellous bone self tapping section (29) of the lateral joint is less than the size of the endoporus of the oblique locking cap in left side (9), described Screw guide cylinder (5) includes positioning section screw guide cylinder (34) and construction section screw guide cylinder (35), and the construction section screw is led It is more than the length of positioning section screw guide cylinder (34) to the length of cylinder (35), the size of the construction section screw guide cylinder (35) is big In the size of positioning section screw guide cylinder (34), the endoporus of the construction section screw guide cylinder (35) is led provided with construction section screw To cylinder internal thread (36), the endoporus of the positioning section screw guide cylinder (34) is provided with positioning section screw guide cylinder internal thread (37), the upper pedicle screw is fixed external screw thread (23) and matched with upper locking cap internal thread (14), the lower pedicle of vertebral arch screw Follow closely fixed external screw thread (28) with lower locking cap internal thread (16) to match, the prominent screw of the lateral joint fixes external screw thread (33) and a left side Skew back matches to locking cap internal thread (18), and the upper pedicle screw fixes external screw thread (23), the lower pedicle screw Fixed external screw thread (28) and lateral joint dash forward screw fixation external screw thread (33) with positioning section screw guide cylinder internal thread (37) phase Match somebody with somebody, fixed cap external screw thread (23), the oblique locking cap external screw thread (33) of lower locking cap external screw thread (28) and left side with peace Dress section screw guide cylinder internal thread (36) matches, and the guide plate (6) is provided with through hole (38), guide plate lower through-hole (39) on guide plate Through hole on guide plate (38) is may pass through with oblique through hole (40), the upper pedicle screw cancellous bone self tapping section (19) on the left of guide plate, The lower pedicle screw cancellous bone self tapping section (24) may pass through guide plate lower through-hole (39), and the lateral joint dashes forward screw cancellous bone certainly Attack section (29) and may pass through the oblique through hole (40) in guide plate left side, the guide plate (6) includes upper guide plate (41), lower-left guide plate (42) and the right side Bottom guide (43), it is detachably connected between the upper guide plate (41), lower-left guide plate (42) and bottom right guide plate (43) three, it is described Through hole (38) is located on the junction between upper guide plate (41), lower-left guide plate (42) and bottom right guide plate (43) three on guide plate, The guide plate lower through-hole (39) is located on the junction between lower-left guide plate (42) and bottom right guide plate (43), on the left of the guide plate tiltedly It is located to through hole (40) on the junction between upper guide plate (41) and lower-left guide plate (42), the bottom of fixed cap (7) is set There is a upper locking cap flange collar (44), the bottom of the lower locking cap (8) is provided with lower locking cap flange collar (45), through hole on the guide plate (38) the recessed circle (46) of through hole on guide plate is provided with, the guide plate lower through-hole (39) is provided with the recessed circle (47) of guide plate lower through-hole, described Upper locking cap flange collar (44) matches (46) with the recessed circle of through hole on guide plate, and the lower locking cap flange collar (45) and guide plate lower through-hole are recessed Circle matches (47), and the lower-left guide plate (42) is provided with the first lower-left guide plate grab (48) and the second lower-left guide plate grab (49), the bottom right guide plate (43) is provided with bottom right guide plate grab (50), bottom right guide plate hole clipping (51) and bottom right guide plate removal hole (52), the upper guide plate (41) is provided with the first upper guide plate hole clipping (53), the second upper guide plate hole clipping (54), the dismounting of the first upper guide plate Hole (55) and the second upper guide plate removal hole (56), the first lower-left guide plate grab (48) match with the first upper guide plate hole clipping (53) Close, the second lower-left guide plate grab (49) is engaged with bottom right guide plate hole clipping (51), the bottom right guide plate grab (50) and the Two upper guide plate hole clippings (54) are engaged, and the bottom right guide plate hole clipping (51) connects with bottom right guide plate removal hole (52), and described One upper guide plate hole clipping (53) connects with the first upper guide plate removal hole (55), and the second upper guide plate hole clipping (54) on second with leading Plate removal hole (56) connects, and the upper guide plate (41) and the left side of lower-left guide plate (42) are provided with left groove, the left side Groove is connected spring (a1) provided with left side, and the left side of the upper guide plate (41) is provided with gib head on the left of upper guide plate, described The left side of lower-left guide plate (42) is provided with gib head on the left of the guide plate of lower-left, and be connected one end of spring (a1) of the left side is hooked in On the left of guide plate on gib head, the be connected other end of spring (a1) of the left side is hooked on the left of the guide plate of lower-left on gib head, it is described on The right side of guide plate (41) and bottom right guide plate (43) is provided with right groove, and the right groove is connected spring provided with right side (a2), the right side of the upper guide plate (41) is provided with gib head on the right side of upper guide plate, and the right side of the bottom right guide plate (43) is provided with the right side Gib head on the right side of bottom guide, be connected one end of spring (a2) of the right side are hooked on the right side of upper guide plate on gib head, and the right side connects The other end for connecing fixed spring (a2) is hooked on the right side of the guide plate of bottom right on gib head, the lower-left guide plate (42) and bottom right guide plate (43) Downside is provided with downside groove, and the downside groove is connected spring (a3) provided with downside, the lower-left guide plate (42) Downside is provided with gib head on the downside of the guide plate of lower-left, and the downside of the bottom right guide plate (43) is provided with gib head on the downside of the guide plate of bottom right, described Be connected one end of spring (a3) of downside is hooked on the downside of lower-left guide plate on gib head, and the downside is connected the another of spring (a3) One end is hooked on the downside of the guide plate of bottom right on gib head.

2. the fixator according to claim 1 for lumbar spinal fusion, it is characterised in that：Including upper reinforcing nut (57), lower reinforcing nut (58) and side reinforce nut (59), and the upper reinforcing nut (57), lower reinforcing nut (58) and side reinforce Countersunk head inner hexagonal hole is equipped with nut (59), the upper reinforcing nut (57) is engaged with upper locking cap (7), the lower reinforcing Nut (58) is engaged with lower locking cap (8), and the side reinforces nut (59) and is engaged with the oblique locking cap in left side (9).

3. the fixator according to claim 1 or 2 for lumbar spinal fusion, it is characterised in that：Set on the guide plate (6) Have that upper arc turns up paster (60) and arc lower turns up paster (61).

4. the fixator according to claim 1 or 2 for lumbar spinal fusion, it is characterised in that：The upper lateral connection Post (10) includes square upper lateral connection post (62) and semicircle upper lateral connection post (63), the semicircle upper lateral connection post (63) bottom with being fixedly connected at the top of square upper lateral connection post (62), the lower vertical connecting pole (11) include it is square under Vertical connecting pole (64) and it is semicircle under vertical connecting pole (65), under the semicircle bottom of vertical connecting pole (65) with it is square It is fixedly connected at the top of vertical connecting pole (64) down, the oblique connecting pole in left side (12) includes the oblique connecting pole in square left side (66) and under semicircle vertical connecting pole (67), the semi-circular left skew back are oblique to the bottom of connecting pole (67) and square left side Connecting pole is fixedly connected at the top of (66).

5. the fixator according to claim 3 for lumbar spinal fusion, it is characterised in that：The upper lateral connection post (10) square upper lateral connection post (62) and semicircle upper lateral connection post (63), the semicircle upper lateral connection post are included (63) bottom with being fixedly connected at the top of square upper lateral connection post (62), the lower vertical connecting pole (11) include it is square under Vertical connecting pole (64) and it is semicircle under vertical connecting pole (65), under the semicircle bottom of vertical connecting pole (65) with it is square It is fixedly connected at the top of vertical connecting pole (64) down, the oblique connecting pole in left side (12) includes the oblique connecting pole in square left side (66) and under semicircle vertical connecting pole (67), the semi-circular left skew back are oblique to the bottom of connecting pole (67) and square left side Connecting pole is fixedly connected at the top of (66).