CN103876816A - Lumbosacral anterior plate fixing device - Google Patents
Lumbosacral anterior plate fixing device Download PDFInfo
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- CN103876816A CN103876816A CN201210556492.3A CN201210556492A CN103876816A CN 103876816 A CN103876816 A CN 103876816A CN 201210556492 A CN201210556492 A CN 201210556492A CN 103876816 A CN103876816 A CN 103876816A
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- lock nut
- screw
- screw hole
- steel plate
- locking cap
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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
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
-
- 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
-
- 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
- A61B17/7059—Cortical plates
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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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8033—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers
- A61B17/8042—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers the additional component being a cover over the screw head
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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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8052—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
-
- 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
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
Abstract
The invention provides a lumbosacral anterior plate fixing device. The lumbosacral anterior plate fixing device comprises a steel plate and screws, the steel plate is provided with screw holes, and the head portion of every screw can be accommodated into the corresponding screw hole. The lumbosacral anterior plate fixing device is characterized in by also comprising locking caps, the steel plate is provided with locking cap holes adjacent to the screw holes, and the locking caps are retained inside the locking cap holes in a rotatable mode; each locking cap is provided with a concave-surface portion and a convex-surface portion along the circumference, in a locking cap first rotating position of the concave-surface portion of the locking cap, which faces towards the corresponding screw holes, the locking cap does not block the corresponding screw holes, and in a locking cap second rotating position of the convex-surface portion of the locking cap, which faces towards the corresponding screw holes, the convex-surface portion can press the head portions of the corresponding screws in the corresponding screw holes. According to the technical scheme, the lumbosacral anterior plate fixing device can simplify surgical processes, reduce surgical operation difficulty and obtain a compact structure.
Description
Technical field
The present invention relates to the fixation implant in medical instruments field, it is applied to the operation of orthopaedics spinal treatments.Particularly, the present invention relates to waist sacrum anterior plate fixture.
Background technology
Human spine links up vertebra and the organic whole structure that forms, and vertebra comprises 7 cervical vertebras, 12 thoracic vertebras, 5 lumbar vertebras, 5 sacrals and 4 caudal vertebras.Between the 5th lumbar vertebra and the 1st sacral, be easy to fracture, dislocation, pleurapophysis.If fracture, dislocation, pleurapophysis, should fix in time to recover its normal physiological state and stability.Nearly ten years, common fixing means has: way of escape sacrum rod is fixed, lag screw is fixed, anterior plate is fixed etc.
Way of escape sacrum rod fixedly requires bilateral posterior superior iliac spine intact, and excessively pressurization may damage sacral nerves, thereby it can not be used for bilateral sacroiliac dislocation.
Lag screw fixedly requires sacroiliac joint to reset completely, surgical condition require high, in art, need repeatedly to have an X-rayed, as put nail position improper, can cause blood vessel or nerve injury.
The fixing advantage of anterior plate has: 1. anterior plate is fixing safer, firm, simple, can anatomical reduction, reduce the destruction of sacroiliac joint posterior soft tissues, reduce the generation of wound infection and flap necrosis, be beneficial to through ilium groin approach simultaneously and fix to homonymy acetabular anterior column or in antetheca is fractured and fracture of pubis resets, improved surgical effect.2. premenstrual road is beneficial to the detecting of life-threatening abdominal injury, and pelvic ring is carried out to anatomical reduction and fixing simultaneously.3. under direct-view, complete to reset and fix, can reduce the complication such as neural blood vessel damage.4. in fixing can only short-term maintain reset fixing, the Healing strength that relies on local damage steady in a long-term, adopt sacroiliac joint bone-graft fusion can reach permanent stable, solve the problems such as fracture redisplacement and sacroiliac joint shakiness, and can avoid the generation of sacroiliac joint traumatic arthritis.It is convenient that ⑤Qian road otch appears, and complication is less, and is beneficial to the processing of associated injury.
At present, waist sacrum anterior plate fixed system is made up of steel plate and screw substantially.In order to prevent moving back nail after screw placement human body, the various pin structures that move back in prior art, are designed.For example, existing a kind of product of pungent DIS is exactly that steel plate and screw are passed through to screw-threaded coupling, and the shortcoming of this design is to have stress shielding.Existing a kind of product of Medtronic Inc. is to increase by a block pressur plate, screw is pushed down, then with lock-screw, pressing plate and steel plate are fixed together in addition, the shortcoming of this design is complex operation, difficulty is large, and because of in the time that pressing plate is installed, pressing plate is easy to slip in human body.In addition, Chinese patent literature CN201055419Y and CN202184786U also disclose some relevant fixtures.
Summary of the invention
In view of the defect of prior art, the object of the invention is to develop a kind of waist sacrum anterior plate fixture, it can simplify operating procedure, reduces operation technique difficulty, and can make package unit compact conformation.
According to the present invention, a kind of waist sacrum anterior plate fixture is provided, comprise steel plate and screw, in wherein said steel plate, be provided with screw hole, the screw head of described screw can be contained in described screw hole,
It is characterized in that,
Described waist sacrum anterior plate fixture also comprises lock nut, in described steel plate, be adjacent to be provided with locking cap opening with described screw hole, described lock nut rotatably remains in described locking cap opening, described lock nut has concave surface portion and convex surface part along its periphery, wherein face in lock nut first position of rotation of described screw hole in the concave surface portion of described lock nut, described lock nut does not block described screw hole, and face in lock nut second position of rotation of described screw hole in the convex surface part of described lock nut, described convex surface part can be pushed down the screw head of the screw that is positioned at described screw hole.
Preferably, in described steel plate, be adjacent to be provided with screw hole described in two or more with described locking cap opening, and described lock nut correspondingly has concave surface portion and convex surface part described in two or more, wherein in each described concave surface portion in lock nut the first position of rotation in the face of the corresponding screw hole in described two or more screw holes, described lock nut does not block described screw hole, and face in lock nut second position of rotation of the corresponding screw hole in described two or more screw holes in each described convex surface part, each described convex surface part can be pushed down the screw head of the screw that is positioned at a described corresponding screw hole.
Preferably, in described steel plate, be provided with locking cap opening described in two or more, to hold lock nut described in two or more.
Preferably, described locking cap opening is made up of coaxial macropore and aperture, and the diameter of described macropore is greater than the diameter of described aperture, and described macropore and described aperture communicate with each other; Described lock nut comprises lock nut top and lock nut bottom, described lock nut top is for being coupled to the described macropore of described locking cap opening, described concave surface portion and convex surface part are arranged in described lock nut top, described lock nut bottom can be through the described aperture of described locking cap opening, wherein, the external diameter on described lock nut top is less than or equal to the diameter of described macropore and is greater than the diameter of described aperture, and the external diameter of described lock nut bottom is less than or equal to the diameter of described aperture; Bottom in described lock nut bottom has formed caulking part, before riveted joint, the external diameter of described caulking part is less than the diameter of described aperture, thereby described caulking part can be riveted with described steel plate through described aperture, after riveted joint, the external diameter of described caulking part is greater than the diameter of described aperture, thereby described lock nut is fixed with respect to described steel plate along its longitudinal axis direction, but described lock nut can rotate around its longitudinal axis simultaneously with respect to described steel plate.
Preferably, described screw hole is spherical pore, and described screw head has spherical auxiliary section, matches with described spherical pore in this spherical auxiliary section.
Preferably, described steel plate is provided with spherical cambered surface at the part place of being combined with vertebral body.
According to technique scheme of the present invention, can simplify operating procedure, reduce operation technique difficulty, and can make package unit compact conformation.
Particularly, the present invention has advantages of as follows:
1, waist sacrum anterior plate fixture of the present invention is mainly made up of steel plate and screw, fewer than the existing product part of Medtronic Inc., package unit compact conformation, and can reduce operating procedure, simplify operating procedure, reduce operation technique difficulty, increase the safety and effectiveness of operation.
2, the existing product of pungent DIS is that steel plate and screw pass through screw-threaded coupling, and this can produce stress shielding; By comparison, in waist sacrum anterior plate fixture of the present invention, steel plate is that sphere is combined with screw, and screw also locks by lock nut, thereby can not produce stress shielding while shrinking merging.
3, in waist sacrum anterior plate fixture of the present invention, steel plate is provided with spherical cambered surface at the part place of being combined with vertebral body, thereby the design of the cambered surface at steel plate and vertebral body joint portion place has met anatomical structure, thereby make device stickiness of the present invention good, in operation, do not need osteotomy, and fixing rear reliable and stable, there is no stress shielding.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the present application, below the accompanying drawing of required use during embodiment is described is briefly described.Apparently, the accompanying drawing in the following describes only relates to the exemplary embodiment of recording in the application, for those of ordinary skill in the art, is not paying under the prerequisite of creative work, can also obtain other drawings and Examples according to these accompanying drawings.
Fig. 1 is the schematic perspective view of the waist sacrum anterior plate fixture according to an embodiment of the invention observed from side top;
Fig. 2 is the schematic top plan view of the waist sacrum anterior plate fixture according to an embodiment of the invention observed from top;
Fig. 3 is the schematic perspective view of lock nut according to an embodiment of the invention;
Fig. 4 is the schematic perspective view of steel plate according to an embodiment of the invention, can observe the front of described steel plate from this figure;
Fig. 5 is the schematic perspective view of steel plate according to an embodiment of the invention, can observe the back side of described steel plate from this figure;
Fig. 6 is the schematic perspective view of screw according to an embodiment of the invention;
Fig. 7 is the schematic perspective view that waist sacrum anterior plate fixture according to an embodiment of the invention is applied to vertebral body.
Description of reference numerals:
1, steel plate
2, screw
3, lock nut
4, screw hole
5, spherical cambered surface
6, screw head
7, concave surface portion
8, convex surface part
9, lumbar vertebra
10, sacral
11, screw body
12, locking cap opening
13, spherical auxiliary section
14, lock nut top
15, lock nut bottom
16, caulking part
17, macropore
18, aperture
Detailed description of the invention
Describe the preferred embodiments of the present invention in detail below with reference to accompanying drawing.
As shown in Fig. 1 ~ 4, waist sacrum anterior plate fixture of the present invention comprises steel plate 1 and screw 2, in wherein said steel plate 1, is provided with screw hole 4.In the embodiment of Fig. 1 ~ 4, steel plate 1 is rectangular substantially, and is provided with four screw holes 4 at roughly four bights place of this rectangle.Described screw 2 is for being fixed to corpus vertebrae by described steel plate 1.As shown in Figure 6, described screw 2 is made up of screw head 6 and screw body 11, and screw head 6 and screw body 11 form, and the periphery of screw body 11 is provided with screw thread so that fastening this screw 2.The screw body 11 of described screw 2 can pass screw hole 4, and the screw head 6 of described screw 2 can be contained in the screw hole 4 of described steel plate 1, thereby steel plate 1 can be fixed on corpus vertebrae.
As shown in Fig. 1 ~ 4, described waist sacrum anterior plate fixture also comprises lock nut 3, in described steel plate 1, is adjacent to be provided with locking cap opening 12 with described screw hole 4.Described lock nut 3 rotatably remains in described locking cap opening 12.That is, described lock nut 3 is fixed in described locking cap opening 12 in its longitudinal axis direction, but can be around its longitudinal axis rotation in described locking cap opening 12.In the embodiment of Fig. 1 ~ 4, described locking cap opening 12 is shoulder hole shape, is made up of coaxial macropore 17 and aperture 18, and the diameter of described macropore 17 is greater than the diameter of described aperture 18, and described macropore 17 and described aperture 18 communicate with each other; Described lock nut 3 comprises lock nut top 14 and lock nut bottom 15, described lock nut top 14 is for being coupled to the described macropore 17 of described locking cap opening 12, described lock nut bottom 15 can be through the described aperture 18 of described locking cap opening 12, wherein, the external diameter on described lock nut top 14 is less than or equal to the diameter of described macropore 17 and is greater than the diameter of described aperture 18, and the external diameter of described lock nut bottom 15 is less than or equal to the diameter of described aperture 18; Bottom in described lock nut bottom 15 has formed caulking part 16, before riveted joint, the external diameter of described caulking part 16 is less than the diameter of described aperture 18, thereby described caulking part 16 can be riveted with described steel plate 1 through described aperture 18, after riveted joint, the external diameter of described caulking part 16 is greater than the diameter of described aperture 18, thereby make described lock nut 3 fixing with respect to described steel plate 1 along its longitudinal axis direction, but described lock nut 3 can rotate around its longitudinal axis simultaneously with respect to described steel plate 1.
As shown in Figure 3, described lock nut 3 has concave surface portion 7 and convex surface part 8 along its periphery, and especially, described concave surface portion 7 and convex surface part 8 are arranged in described lock nut top 14.As shown in Figure 1 and 2, face in lock nut first position of rotation of described screw hole 4 in the concave surface portion 7 of described lock nut 3, described lock nut 3 does not block described screw hole 4, thereby screw 2 can freely insert in screw hole 4; And face in lock nut second position of rotation of described screw hole 4 in the convex surface part 8 of described lock nut 3, described convex surface part 8 can be pushed down the screw head 6 of the screw 2 that is positioned at described screw hole 4, thereby the screw 2 that can make to have inserted in screw hole 4 can not exit screw hole 4.Described concave surface portion 7 and convex surface part 8 can form by cutting one or more arch sections from a cylindrical base.As shown in Figure 2,4, locking cap opening 12 is overlapped with a part for the profile of adjacent screw hole 4, thereby locking cap opening 12 and adjacent screw hole 4 are interconnected, to make in lock nut the second position of rotation, the convex surface part 8 of described lock nut 3 can be projected in adjacent screw hole 4, thereby shelters from the screw head 6 of screw 2.
In the present invention, in described steel plate 1, can be adjacent to be provided with screw hole 4 described in two or more with described locking cap opening 12, and described lock nut 3 correspondingly has concave surface portion 7 and convex surface part 8 described in two or more, wherein in each described concave surface portion 7 in lock nut the first position of rotation in the face of the corresponding screw hole 4 in described two or more screw holes 4, described lock nut 3 does not block described screw hole 4, and face in lock nut second position of rotation of the corresponding screw hole 4 in described two or more screw holes 4 in each described convex surface part 8, each described convex surface part 8 can be pushed down the screw head 6 of the screw 2 that is positioned at a described corresponding screw hole 4.By above-mentioned setting, can adopt a lock nut 3 to lock two or more screws 2 simultaneously.In the present invention, in described steel plate 1, can also be provided with locking cap opening 12 described in two or more, to hold lock nut 3 described in two or more.The embodiment with two lock nuts 3 and two locking cap openings 12 and four screws 2 and four screw holes 4 has been shown in Fig. 1 ~ 2.
As shown in Fig. 4 ~ 6, in the present invention, described screw hole 4 can be spherical pore, and described screw head 6 can have spherical auxiliary section 13, matches with described spherical pore in this spherical auxiliary section 13.Steel plate 1 is spherical cooperation with coordinating of screw 2, and this can be avoided the generation of stress shielding phenomenon.
As shown in Figure 5, in the present invention, described steel plate 1 can be provided with spherical cambered surface 5 at the part place of being combined with vertebral body.In the embodiment of Fig. 5, described steel plate 1 is respectively equipped with a spherical cambered surface 5 at the upper and lower place at its back side, for combining with corresponding corpus vertebrae.Steel plate 1 has spherical cambered surface design with lumbar vertebra 9, sacral 10 junctions, and this meets human anatomic structure, thereby can make device stickiness of the present invention good, fixing rear reliable and stable.
In practical operation, as depicted in figs. 1 and 2, before pedicle screw 2, should make the concave surface portion 7 of lock nut 3 in the face of screw hole 4, thereby allow screw 2 to insert in screw hole 4; After screw 2 is all screwed in screw hole 4, operator can rotate lock nut 3 to make it half-twist, thereby can make the convex surface part 8 of lock nut 3 just in time push down screw head 6, can prevent that like this screw head 6 from exiting from screw hole 4, thereby prevent that screw 2 from exiting from screw hole 4.And in the embodiment of Fig. 1 and Fig. 2, a lock nut 3 can lock two screws 2 simultaneously.Fig. 7 is the schematic perspective view that waist sacrum anterior plate fixture according to an embodiment of the invention is applied to vertebral body.As shown in Figure 7, steel plate 1 is fixed on lumbar vertebra 9 by two, top screw 2, and steel plate 1 is fixed on sacral 10 by two of bottoms screw 2, and this structure has adopted two lock nuts 3, and wherein each lock nut 3 can lock two screws 2 simultaneously.
According to technique scheme of the present invention, can simplify operating procedure, reduce operation technique difficulty, and can make package unit compact conformation.
The above is only the application's exemplary detailed description of the invention.These improvement and modification it should be pointed out that for those skilled in the art, not departing under the prerequisite of the present application principle and inventive concept, can also make some improvement and modification, within also should be considered as dropping on the application's protection domain.
Claims (6)
1. a waist sacrum anterior plate fixture, comprises steel plate (1) and screw (2), is provided with screw hole (4) in wherein said steel plate (1), and the screw head (6) of described screw (2) can be contained in described screw hole (4),
It is characterized in that,
Described waist sacrum anterior plate fixture also comprises lock nut (3), in described steel plate (1), be adjacent to be provided with locking cap opening (12) with described screw hole (4), described lock nut (3) rotatably remains in described locking cap opening (12), described lock nut (3) has concave surface portion (7) and convex surface part (8) along its periphery, wherein face in lock nut first position of rotation of described screw hole (4) in the concave surface portion (7) of described lock nut (3), described lock nut (3) does not block described screw hole (4), and face in lock nut second position of rotation of described screw hole (4) in the convex surface part (8) of described lock nut (3), described convex surface part (8) can be pushed down the screw head (6) of the screw (2) that is positioned at described screw hole (4).
2. waist sacrum anterior plate fixture according to claim 1, it is characterized in that, in described steel plate (1), be adjacent to be provided with screw hole (4) described in two or more with described locking cap opening (12), and described lock nut (3) correspondingly has concave surface portion (7) and convex surface part (8) described in two or more, wherein face in lock nut first position of rotation of the corresponding screw hole (4) in described two or more screw holes (4) in each described concave surface portion (7), described lock nut (3) does not block described screw hole (4), and face in lock nut second position of rotation of the corresponding screw hole (4) in described two or more screw holes (4) in each described convex surface part (8), each described convex surface part (8) can be pushed down the screw head (6) of the screw (2) that is positioned at a described corresponding screw hole (4).
3. waist sacrum anterior plate fixture according to claim 2, is characterized in that, is provided with locking cap opening (12) described in two or more in described steel plate (1), to hold lock nut (3) described in two or more.
4. according to the waist sacrum anterior plate fixture described in any one in claim 1 ~ 3, it is characterized in that, described locking cap opening (12) is made up of coaxial macropore (17) and aperture (18), the diameter of described macropore (17) is greater than the diameter of described aperture (18), and described macropore (17) and described aperture (18) communicate with each other, described lock nut (3) comprises lock nut top (14) and lock nut bottom (15), described lock nut top (14) is for being coupled to the described macropore (17) of described locking cap opening (12), described concave surface portion (7) and convex surface part (8) are arranged in described lock nut top (14), described lock nut bottom (15) can be through the described aperture (18) of described locking cap opening (12), wherein, the external diameter on described lock nut top (14) is less than or equal to the diameter of described macropore (17) and is greater than the diameter of described aperture (18), the external diameter of described lock nut bottom (15) is less than or equal to the diameter of described aperture (18), form caulking part (16) in the bottom of described lock nut bottom (15), before riveted joint, the external diameter of described caulking part (16) is less than the diameter of described aperture (18), thereby described caulking part (16) can be riveted with described steel plate (1) through described aperture (18), after riveted joint, the external diameter of described caulking part (16) is greater than the diameter of described aperture (18), thereby make described lock nut (3) fixing with respect to described steel plate (1) along its longitudinal axis direction, but described lock nut (3) can rotate with respect to described steel plate (1) around its longitudinal axis simultaneously.
5. according to the waist sacrum anterior plate fixture described in any one in claim 1 ~ 3, it is characterized in that, described screw hole (4) is spherical pore, and described screw head (6) has spherical auxiliary section (13), matches with described spherical pore in this spherical auxiliary section (13).
6. according to the waist sacrum anterior plate fixture described in any one in claim 1 ~ 3, it is characterized in that, described steel plate (1) is provided with spherical cambered surface (5) at the part place of being combined with vertebral body.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210556492.3A CN103876816A (en) | 2012-12-19 | 2012-12-19 | Lumbosacral anterior plate fixing device |
| PCT/CN2013/088736 WO2014094551A1 (en) | 2012-12-19 | 2013-12-06 | Lumbosacral anterior approach steel plate fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210556492.3A CN103876816A (en) | 2012-12-19 | 2012-12-19 | Lumbosacral anterior plate fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103876816A true CN103876816A (en) | 2014-06-25 |
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ID=50946170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210556492.3A Pending CN103876816A (en) | 2012-12-19 | 2012-12-19 | Lumbosacral anterior plate fixing device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103876816A (en) |
| WO (1) | WO2014094551A1 (en) |
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| CN104352272A (en) * | 2014-11-14 | 2015-02-18 | 广西骨伤医院 | Anterior cervical locking and pressurizing steel plate |
| CN104758040A (en) * | 2015-04-30 | 2015-07-08 | 山东威高骨科材料股份有限公司 | Steel plate for anterior cervial internal fixation and guiding device |
| CN107582158A (en) * | 2017-09-11 | 2018-01-16 | 哈尔滨医科大学 | Anatomical form articulatio sacroiliaca locking steel plate |
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| CN109758221A (en) * | 2019-03-29 | 2019-05-17 | 大博医疗科技股份有限公司 | A kind of compound locking bone fracture plate |
| CN113813033A (en) * | 2021-09-24 | 2021-12-21 | 浙江省立同德医院 | Angle-adjustable self-locking type lumbosacral anterior channel vertebral arch fixing nail plate fixing method and system |
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| USD925740S1 (en) | 2019-11-26 | 2021-07-20 | GetSet Surgical SA | Spinal fusion cage |
| US11278426B2 (en) | 2019-11-26 | 2022-03-22 | GetSet Surgical SA | Spinal surgery assemblies, systems, and methods |
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Cited By (7)
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| CN104352272A (en) * | 2014-11-14 | 2015-02-18 | 广西骨伤医院 | Anterior cervical locking and pressurizing steel plate |
| CN104758040A (en) * | 2015-04-30 | 2015-07-08 | 山东威高骨科材料股份有限公司 | Steel plate for anterior cervial internal fixation and guiding device |
| CN107582158A (en) * | 2017-09-11 | 2018-01-16 | 哈尔滨医科大学 | Anatomical form articulatio sacroiliaca locking steel plate |
| CN108186100A (en) * | 2018-02-09 | 2018-06-22 | 黄雁鸣 | The minimally invasive preceding road plate of Thoracolumbar disk |
| CN109758221A (en) * | 2019-03-29 | 2019-05-17 | 大博医疗科技股份有限公司 | A kind of compound locking bone fracture plate |
| CN109758221B (en) * | 2019-03-29 | 2023-10-24 | 大博医疗科技股份有限公司 | Composite locking bone fracture plate |
| CN113813033A (en) * | 2021-09-24 | 2021-12-21 | 浙江省立同德医院 | Angle-adjustable self-locking type lumbosacral anterior channel vertebral arch fixing nail plate fixing method and system |
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| WO2014094551A1 (en) | 2014-06-26 |
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