CN208096806U - A kind of way of escape Study of Atlas Fracture by Finite reduction fixture device - Google Patents
A kind of way of escape Study of Atlas Fracture by Finite reduction fixture device Download PDFInfo
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- CN208096806U CN208096806U CN201720329979.6U CN201720329979U CN208096806U CN 208096806 U CN208096806 U CN 208096806U CN 201720329979 U CN201720329979 U CN 201720329979U CN 208096806 U CN208096806 U CN 208096806U
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7055—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant connected to sacrum, pelvis or skull
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Abstract
The utility model discloses a kind of way of escape Study of Atlas Fracture by Finite reduction fixture devices, including screw, the left fixed plate and right fixed plate left and right arrangement and be flexibly connected, the left end of the left fixed plate and the right end of right fixed plate are equipped with the conical through-hole for mounting screw, the upper end bore of the conical through-hole is greater than lower end bore, the conical through-hole of left fixed plate left end tilts to the right, inclined downward, the screw are additionally provided with pyramidal structure in its screw body upper end to the conical through-hole of right fixed plate right end to the left.In the stationary state, the lower end of screw body passes through the conical through-hole and connect with lateral mass of atlas Study of Atlas Fracture by Finite reduction fixture device, and pyramidal structure insertion is installed in conical through-hole, and the diameter of screw body is less than the lower end bore of conical through-hole.Present embodiment is conducive to improve the therapeutic effect of Study of Atlas Fracture by Finite.
Description
Technical field
The utility model relates to the field of medical instrument technology, and in particular to a kind of way of escape Study of Atlas Fracture by Finite reduction fixation dress
It sets.
Background technique
Atlas is made of anterior arch, cantle and two lateral mass.Unstable atlas bursting fracture often causes lateral mass to shift to two sides,
It is now to advocate to treat using atlas list vertebra section reduction fixation method more, restore the physiological function of upper cervical spine.Because through oropharynx
Anterior approach easily causes the severe complications such as infection, plate exposure, mostly uses posterior approach at present.However it is existing it is various after
Road reduction fixation device is easier to reset to arch of posterior atlas fracture, but is difficult to reach ideal reset to anterior arch of atlas fracture,
To influence therapeutic effect.
Chinese invention patent《Way of escape atlas reduction fixture device》(publication number：204744370U；Publication date：In November, 2015
11 days) in provide a kind of way of escape atlas reduction fixture device, which includes left fixing piece, right fixation
Part, screw.The left fixing piece, right fixing piece include cross bar setting up and down and parallel and setting up and down for connecting
Cross bar brace.Keyway is provided on the cross bar on the top of the left fixing piece, the cross bar on the top of the right fixing piece is
One has the protrusion of lock screw, and the protrusion is cooperatively connected with keyway；The left fixing piece, right fixing piece brace on be arranged
There is the loaded reset hole fixed for horizontal pincers.The application method of the way of escape atlas reduction fixture device：After surgical exposure atlas
Bow, prepares screw way, screw placement screw way is simultaneously fixed on lateral mass on two lateral mass of atlas；Left fixing piece, right fixing piece are just
It is drawn close to arch of posterior atlas and by the cooperation of keyway and key to centre, draws close two side of atlas to centre and realize that physiology resets.It is logical
Analysis and actual use result are crossed it is found that because screw only has fixed effect, in carrying out reseting procedure, cantle fracture can be with
Realize preferable reset, but because the strength of pressurization comes from behind, anterior arch fracture is still difficult to realize preferably reset.Chinese invention
Patent《Arch of posterior atlas fixator》(publication number：202497224U；Publication date：On October 24th, 2012) in provide a kind of atlas
Cantle fixator, the arch of posterior atlas fixator suit the fixed plate structure with face from two same curvatures and by stepped ramp type
At.Two fixed plates pass through the fixing screws being arranged on regulating tank and fix, and the two sides of fixator are symmetrically arranged with screw hole, screw
It is threaded through in the ball whirlpool fixed structure in screw hole.When treating Study of Atlas Fracture by Finite using the arch of posterior atlas fixator, screw is fixed on extensive region
On the lateral mass of vertebra, pushes two side of atlas to draw close to centre by the retraction between two fixed plates and realize that physiology resets.By dividing
Analysis also cannot achieve the ideal of anterior arch of atlas and reset it is found that the screw also only effect of fixation.
Generally speaking, by the prior art it is found that the effect of screw only fixation, cannot achieve the reason of anterior arch of atlas fracture
Want to reset.
Summary of the invention
The utility model makes improvements for existing reseting fixture, i.e., the utility model is wanted
The technical issues of solution, is to provide a kind of way of escape Study of Atlas Fracture by Finite reduction fixture device, and screw described in the fixator can be in locking
It is swung in the process by the interior receipts of screw front, drives and receive rotation into the lateral mass of atlas front of lateral displacement because of fracture,
To realize that the physiology of anterior arch of atlas fracture resets.To solve the above problems, technical solution provided by the utility model is：
A kind of way of escape Study of Atlas Fracture by Finite reduction fixture device, including screw, left and right arrangement and the left fixed plate being flexibly connected and the right side
Fixed plate, which is characterized in that the left end of the left fixed plate and the right end of right fixed plate are equipped with the taper for mounting screw
The upper end bore of through-hole, the conical through-hole is greater than lower end bore, and the conical through-hole of left fixed plate left end tilts to the right, right
Inclined downward, the screw are additionally provided with pyramidal structure, atlas in its screw body upper end to the conical through-hole of fixed plate right end to the left
In the stationary state, the lower end of screw body passes through the conical through-hole and connect with lateral mass of atlas fracture reduction fixator, taper
Structure insertion is installed in conical through-hole, and the diameter of screw body is less than the lower end bore of conical through-hole,
The left fixed plate and right fixed plate are arc, and the curvature of the two is identical, and the right end of left fixed plate is equipped with along arc
The sliding slot that shape extends, the left end of right fixed plate are equipped with threaded hole, are equipped with lock-screw, lock-screw and sliding slot in the threaded hole
It is cooperatively connected,
The side of the sliding slot is equipped with the rack gear arcuately extended, and the lock-screw includes screw rod and connects with screw rod upper end
The head of screw connect, the outer cover of screw rod are equipped with the gear being engaged with rack,
The upper end of the gear is additionally provided with hexagonal boss, and the hexagonal boss and gear are coaxially connected, and hexagonal boss is equipped with logical
Hole, the diameter of the through-hole are greater than the diameter of the head of screw, and head of screw is located in through-hole.
Further, the conical through-hole is consistent with the taper of screw upper end pyramidal structure.
Further, the axis angle of two conical through-holes is 15 ° to 30 °.
Further, the left end of the left fixed plate and the right end of right fixed plate are equipped with upward protrusion, and the taper is logical
Hole is located in protrusion.
Further, the hexagonal boss is outer-hexagonal boss.
Further, the material of the left fixed plate and right fixed plate is medical titanium alloy.
In the above-mentioned technical solutions, since the diameter of screw body is less than the lower end bore of conical through-hole, screw body can
Conical through-hole is passed through along different angles, in order to which screw body passes through conical through-hole implantation atlas side in practical operation
Block.The application method of the utility model is specifically described for the ease of understanding the utility model,：Surgical exposure arch of posterior atlas,
Screw way is prepared along 5 ° to 10 ° directions of introversion on two lateral mass of atlas；The position for adjusting left fixed plate and right fixed plate makes to bore
Shape through-hole alignment screw way；Screw body passes through conical through-hole and protrudes into screw way；By rotate gear, left fixed plate, the right side are adjusted
The relative position of fixed plate makes to move inward to the lateral mass of atlas of lateral displacement and makes the direct-view of arch of posterior atlas fracture is lower to reset completely；
The lock-screw in fixed plate in hexagonal boss is tightened, left and right fixed plate relative position is fixed；Lateral mass screw ontology continues
It travels forward, so that pyramidal structure is constantly extend into conical through-hole, in the process, with pyramidal structure and conical through-hole
Relative position gradually match, screw body drives lateral mass of atlas front to rotate inward movement, realizes the life of anterior arch of atlas fracture
Reason resets.It follows that relative position of the utility model by adjusting left fixed plate and right fixed plate, and pass through screw and lock
Receiving to swing in process middle front part drives receipts rotation in lateral mass of atlas front to realize Study of Atlas Fracture by Finite, the especially life of anterior arch of atlas fracture
It manages physiology to reset, is conducive to the therapeutic effect for improving Study of Atlas Fracture by Finite.Since the utility model is needed through screw atlantad lateral mass
Stress is received in applying, conical through-hole depth is deeper, and the interior receipts stress of generation is bigger, and therefore, the utility model is increased by protrusion
Add the depth of conical through-hole, to guarantee to generate enough interior receipts power during screw locking.Adjust left fixed plate, right fixed plate
Relative position can be realized by the mating connection between lock-screw and sliding slot.Lock-screw is mobile along the chute to drive right fixation
Plate is mobile relative to left fixed plate, twists lock-screw when the relative position of left fixed plate, right fixed plate reaches predetermined position
It is tight.On this basis, the relative position of left fixed plate, right fixed plate is accurately controlled by the engagement of gear and rack gear
System.The outer-hexagonal boss is convenient for rotate gear.Outer-hexagonal boss, outer-hexagonal boss meeting are rotated by interior hexagonal socket wrench
Band moving gear rotates.In addition, the head of screw of lock-screw is exposed by the through-hole in hexagonal boss, be easy to use screw
Knife tightens lock-screw.
The utility model has the advantage that：
1. the therapeutic effect that the utility model is conducive to improve Study of Atlas Fracture by Finite.By adjusting left fixed plate and right fixed plate
Relative position realizes that Study of Atlas Fracture by Finite, especially anterior arch of atlas are fractured in conjunction with the interior receipts stress generated during lateral mass screw locking
Physiology reset, so as to improve the therapeutic effect of Study of Atlas Fracture by Finite.
2. the utility model is convenient for accurately controlling the relative position between the left fixed plate and right fixed plate.
3. the utility model is convenient in narrow space using operation.Outer-hexagonal can be rotated by interior hexagonal socket wrench
Boss, this process are convenient for operating in narrow space；The head of screw of lock-screw is exposed by the through-hole of hexagonal boss
Come, screwdriver easy to use tightens lock-screw.Whole operation process does not need excessively to pull muscle to two sides, to reduce flesh
Meat tissue damage.
Detailed description of the invention
Fig. 1 is the perspective view of the utility model.
Fig. 2 is the front view of the utility model.
Fig. 3 is the top view of the utility model.
Fig. 4 is the sectional view in Fig. 3 at A-A.
Fig. 5 is the enlarged drawing in Fig. 4 at J.
Fig. 6 is the first use state of the utility model with reference to figure.
Fig. 7 is second of use state of the utility model with reference to figure
Specific embodiment
Below with reference to embodiment and attached drawing, the utility model is described further.
Specific embodiment of the present utility model, as shown in Fig. 1 to 5.
A kind of way of escape Study of Atlas Fracture by Finite reduction fixture device, including screw 1,2 and of left fixed plate left and right arrangement and be flexibly connected
Right fixed plate 3.
The material of the left fixed plate 2 and right fixed plate 3 is medical titanium alloy.The left end of left fixed plate 2 and right fixation
The right end of plate 3 is equipped with upward protrusion, and conical through-hole is located in protrusion, and conical through-hole is used for mounting screw 1.The taper
The upper end bore of through-hole is greater than lower end bore.The conical through-hole of left 2 left end of fixed plate tilts to the right, right 3 right end of fixed plate
Conical through-hole inclined downward to the left, the axis angle of two conical through-holes is within the scope of 15 ° to 30 °.Left fixed plate 2 and the right side are solid
Fixed board 3 is arc, and the curvature of the two is identical.The arc contact surface of left fixed plate 2 and right fixed plate 3 is equipped with arcuately length
The sliding groove structure that direction extends, the sliding groove structure can ensure that left and right fixed plate can carry out left and right adjusting along the track of arc, no
The offset of front and back, up and down direction can be generated.
The right end of left fixed plate 2 is equipped with the sliding slot arcuately extended, and the side of sliding slot is equipped with the rack gear 21 arcuately extended.
The left end of right fixed plate 3 is equipped with threaded hole, and lock-screw 31 is equipped in the threaded hole, and lock-screw 31 and sliding slot cooperation connect
It connects.Lock-screw 31 includes screw rod 311 and the head of screw 312 connecting with 311 upper end of screw rod.The outer cover of screw rod 311 be equipped with
21 meshed gears 32 of rack gear.The upper end of gear 32 is additionally provided with hexagonal boss 33, and the hexagonal boss and gear 32 are coaxially connected, and six
Angle boss 33 is equipped with through-hole, and the diameter of the through-hole is greater than the diameter of head of screw 312, and head of screw 312 is located in the through-hole.Here,
Hexagonal boss 33 is outer-hexagonal boss.
The screw 1 is additionally provided with pyramidal structure 12 in its 11 end of screw body, present embodiment in the stationary state, spiral shell
The front end of nail ontology 11 passes through the conical through-hole and connect with lateral mass of atlas, and the insertion of pyramidal structure 12 is installed in conical through-hole,
Conical through-hole is consistent with the taper of pyramidal structure 12.The diameter of screw body 11 is less than the lower end bore of conical through-hole, screw sheet
Body 11 can pass through conical through-hole along different angles.
The application method of present embodiment, as shown in Figure 6 to 7：
Step 1：Surgical exposure arch of posterior atlas 4 prepares screw way along 5-10 ° of direction of introversion on two lateral mass 5 of atlas.
Step 2：Hexagonal boss 33 is rotated by interior hexagonal socket wrench, is adjusted between right fixed plate 3 and left fixed plate 2
Relative position, until conical through-hole be aligned screw way.
Step 3：The screw body 11 of screw 1 advances through conical through-hole and protrudes into screw way, as shown in Figure 6；Screw sheet
Body 11 moves forward, so that pyramidal structure 12 is just extend into conical through-hole.
Step 4：Hexagonal boss 33 is rotated by interior hexagonal socket wrench, is adjusted between left fixed plate 2 and right fixed plate 3
Relative position, make to move inward to the lateral mass of atlas of lateral displacement and make arch of posterior atlas fracture direct-view is lower to reset completely, pass through
Screwdriver lock-screw 31.
Step 5：Screw body 11 moves forward, so that pyramidal structure is constantly extend into conical through-hole, herein
In the process, it is gradually matched with pyramidal structure with the relative position of conical through-hole, screw body drives lateral mass of atlas front inside
Moving in rotation realizes that the physiology of anterior arch of atlas fracture resets.As shown in Figure 7.
The characteristics of present embodiment：
1. the therapeutic effect that present embodiment is conducive to improve Study of Atlas Fracture by Finite.By the relative position for adjusting left and right fixed plate
Realize that physiology resets under the direct-view of arch of posterior atlas fracture；During being locked by screw 1, the pyramidal structure and taper of end are logical
The relative position in hole gradually matches, and screw body drives lateral mass of atlas front to rotate inward movement, realizes anterior arch of atlas fracture
Physiology resets, so as to improve the therapeutic effect of Study of Atlas Fracture by Finite.
2. present embodiment is convenient for accurately controlling the relative position between the left fixed plate 2 and right fixed plate 3.
Hexagonal boss 33 is rotated by interior hexagonal socket wrench, meanwhile, hexagonal boss 33 will drive the rotation of gear 32；Gear 32 and rack gear
21 engage so that right fixed plate 3 is mobile relative to left fixed plate 2.
3. present embodiment in narrow space using operation.Hexagonal boss is rotated by interior hexagonal socket wrench
33, this process is convenient for operating in narrow space；It is by the through-hole of hexagonal boss 33 that the head of screw 312 of lock-screw 31 is naked
Expose, screwdriver easy to use tightens lock-screw 31.Whole operation process does not need excessively to pull muscle to two sides, thus
Reduce muscle tissue damage.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only the principles of the present invention, the utility model also has respectively on the premise of not departing from the spirit and scope of the utility model
Kind changes and improvements, these changes and improvements are both fallen in the range of claimed invention.The requires of the utility model
Protection scope defined by appended claims and its equivalent.
Claims (6)
1. a kind of way of escape Study of Atlas Fracture by Finite reduction fixture device, solid including screw, left and right arrangement and the left fixed plate being flexibly connected and the right side
Fixed board, which is characterized in that the left end of the left fixed plate and the right end of right fixed plate are equipped with and lead to for the taper of mounting screw
The upper end bore in hole, the conical through-hole is greater than lower end bore, and the conical through-hole of left fixed plate left end tilts to the right, and the right side is solid
Inclined downward, the screw are additionally provided with pyramidal structure, atlas bone in its screw body upper end to the conical through-hole of fixed board right end to the left
Roll over reduction fixture device in the stationary state, the lower end of screw body passes through the conical through-hole and connect with lateral mass of atlas, taper knot
Structure insertion is installed in conical through-hole, and the diameter of screw body is less than the lower end bore of conical through-hole,
The left fixed plate and right fixed plate are arc, and the curvature of the two is identical, and the right end of left fixed plate, which is equipped with, arcuately to be prolonged
The sliding slot stretched, the left end of right fixed plate are equipped with threaded hole, and lock-screw is equipped in the threaded hole, and lock-screw and sliding slot cooperate
Connection,
The side of the sliding slot is equipped with the rack gear arcuately extended, and the lock-screw includes screw rod and connect with screw rod upper end
Head of screw, the outer cover of screw rod are equipped with the gear being engaged with rack,
The upper end of the gear is additionally provided with hexagonal boss, and the hexagonal boss and gear are coaxially connected, and hexagonal boss is equipped with through-hole, should
The diameter of through-hole is greater than the diameter of the head of screw, and head of screw is located in through-hole.
2. way of escape Study of Atlas Fracture by Finite reduction fixture device as described in claim 1, which is characterized in that on the conical through-hole and screw
The taper of end toper structure is consistent.
3. way of escape Study of Atlas Fracture by Finite reduction fixture device as described in claim 1, which is characterized in that the axis folder of two conical through-holes
Angle is 15 ° to 30 °.
4. way of escape Study of Atlas Fracture by Finite reduction fixture device as described in claim 1, which is characterized in that the left end of the left fixed plate and
The right end of right fixed plate is equipped with upward protrusion, and the conical through-hole is located in protrusion.
5. way of escape Study of Atlas Fracture by Finite reduction fixture device as described in claim 1, which is characterized in that the hexagonal boss is outer-hexagonal
Boss.
6. way of escape Study of Atlas Fracture by Finite reduction fixture device as described in claim 1, which is characterized in that the left fixed plate and right fixation
The material of plate is medical titanium alloy.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720329979.6U CN208096806U (en) | 2017-03-31 | 2017-03-31 | A kind of way of escape Study of Atlas Fracture by Finite reduction fixture device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720329979.6U CN208096806U (en) | 2017-03-31 | 2017-03-31 | A kind of way of escape Study of Atlas Fracture by Finite reduction fixture device |
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| CN208096806U true CN208096806U (en) | 2018-11-16 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113855202A (en) * | 2021-09-18 | 2021-12-31 | 浙江省人民医院 | Reduction assistor for head and face irregular bone fracture |
| KR20220104946A (en) * | 2021-01-19 | 2022-07-26 | 고려대학교 산학협력단 | Bone orthotropics apparatus for adjusting distance |
| WO2022158812A1 (en) * | 2021-01-19 | 2022-07-28 | 고려대학교 산학협력단 | Spacing-adjustable orthopedic apparatus |
| KR20220115166A (en) * | 2021-02-10 | 2022-08-17 | 고려대학교 산학협력단 | Bone orthotropics apparatus for adjusting distance |
-
2017
- 2017-03-31 CN CN201720329979.6U patent/CN208096806U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220104946A (en) * | 2021-01-19 | 2022-07-26 | 고려대학교 산학협력단 | Bone orthotropics apparatus for adjusting distance |
| WO2022158812A1 (en) * | 2021-01-19 | 2022-07-28 | 고려대학교 산학협력단 | Spacing-adjustable orthopedic apparatus |
| KR102509060B1 (en) | 2021-01-19 | 2023-03-10 | 고려대학교 산학협력단 | Bone orthotropics apparatus for adjusting distance |
| KR20220115166A (en) * | 2021-02-10 | 2022-08-17 | 고려대학교 산학협력단 | Bone orthotropics apparatus for adjusting distance |
| KR102522326B1 (en) | 2021-02-10 | 2023-04-17 | 고려대학교 산학협력단 | Bone orthotropics apparatus for adjusting distance |
| CN113855202A (en) * | 2021-09-18 | 2021-12-31 | 浙江省人民医院 | Reduction assistor for head and face irregular bone fracture |
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