CN110338894A - It can the fixed pedicle nail of double screws - Google Patents
It can the fixed pedicle nail of double screws Download PDFInfo
- Publication number
- CN110338894A CN110338894A CN201910481951.8A CN201910481951A CN110338894A CN 110338894 A CN110338894 A CN 110338894A CN 201910481951 A CN201910481951 A CN 201910481951A CN 110338894 A CN110338894 A CN 110338894A
- Authority
- CN
- China
- Prior art keywords
- nail
- nail seat
- seat
- button
- stiffening plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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
- A61B17/8685—Pins or screws or threaded wires; nuts therefor comprising multiple separate parts
Abstract
The present invention relates to it is a kind of can the fixed pedicle nail of double screws, including nail seat, jackscrew, pitman and button, the nail seat has axially extending bore, button has ball head, the nail rod of the button passes through the axially extending bore of nail seat, and the ball head of button is connect with nail seat, the jackscrew is located at the top in the axially extending bore of nail seat and being located at the ball head of button, the jackscrew is detachably connected with nail seat, the pitman is radially across nail seat, and between jackscrew and the ball head of button, it further include stiffening plate and auxiliary nail, the stiffening plate is located at the periphery of nail seat, the auxiliary nail is detachably connected with stiffening plate, and auxiliary nail is located at the side of button and is arranged side by side with button.The present invention is not used only simply, and the fixation of double nails is more stable.
Description
Technical field
Present invention relates particularly to it is a kind of suitable for backbone minimal invasion system use can the fixed pedicle nail of double screws,
Belong to orthopaedics art equipment technology field.
Background technique
Minimally invasive spine surgical is for the tradition that spinal disease patient is big relative to wound, risk is high, recovery period is long
Open surgery has the advantages such as small to tissue damage, recovery is fast, spend less, patients ' psychological effect is good.
Currently, pedicle nail in the prior art only has a screw, the treatment for osteoporotic fracture is often planted
Holding power is weaker when entering single screw, tends to the inadequate problem of screw firmness occur, in order to reinforce the centrum one of damage
As can inject bone cement, but during being performed the operation, once bone cement injection is improper, will permeate, if damage
Nerve is hurt, nerve can be damaged, most serious can also be in peril of one's life.
Summary of the invention
The object of the present invention is to provide it is a kind of be not used only it is simple, and double nails it is fixed it is more stable can double screws it is solid
Fixed pedicle nail.
In order to achieve the above object, the technical scheme is that it is a kind of can the fixed pedicle nail of double screws, including nail
Seat, jackscrew, pitman and button, the nail seat have axially extending bore, and button has ball head, the nail rod of the button
Ball head across the axially extending bore of nail seat, and button is connect with nail seat, and the jackscrew is located in the axially extending bore of nail seat simultaneously
Positioned at the top of the ball head of button, the jackscrew is detachably connected with nail seat, and the pitman is radially across nail seat, and position
Between jackscrew and the ball head of button, innovative point is:
It further include stiffening plate and auxiliary nail, the stiffening plate is located at the periphery of nail seat, and the auxiliary nail detachably connects with stiffening plate
It connects, and assists nail to be located at the side of button and be arranged side by side with button.
It in the above-mentioned technical solutions, further include auxiliary nail universal adjustment locking mechanism, the auxiliary nail universal adjustment locking
Mechanism includes cardo ring and lock pin, and the cardo ring is located in stiffening plate, and the auxiliary nail is detachably connected with cardo ring, described
Lock pin is located at the side in stiffening plate and being located at cardo ring, and is integrated cardo ring and stiffening plate locking by lock pin.
In the above-mentioned technical solutions, the stiffening plate is equipped with the lockpin hole and cardo ring mounting hole being mutually communicated, cardo ring
With opening, the cardo ring is located in the cardo ring mounting hole of stiffening plate, and lock pin is located in lockpin hole, and the part card of lock pin
Enter in the opening of cardo ring and offsets with it.
In the above-mentioned technical solutions, the cardo ring mounting hole of the stiffening plate is spherical pore, and cardo ring is and spherical shape ten thousand
The spherical universal ring to match to ring mounting hole.
In the above-mentioned technical solutions, there is the cardo ring taper to lock threaded hole, and the head of the auxiliary nail is screwed into ten thousand
Into the taper of ring locking threaded hole.
In the above-mentioned technical solutions, the stiffening plate is an integral structure with nail seat.
In the above-mentioned technical solutions, the stiffening plate includes the nail seat connection ring being mutually integrated and auxiliary nail seat, the nail
The periphery of seat is equipped with support level, and the nail seat connection ring is sleeved on the periphery of nail seat and is supported on support level, and assists
Nail seat is located at the side of nail seat, and head and the auxiliary nail seat of the auxiliary nail are detachably connected.
In the above-mentioned technical solutions, the nail seat connection ring has nail seat positioning hole, and the nail seat of nail seat connection ring
Boss is equipped at positioning hole, the pitman offsets with boss.
In the above-mentioned technical solutions, be equipped with the intermediate being threadedly coupled with it in the axially extending bore of the nail seat, it is described in
Mesosome has spherical inner hole, and the ball head of button is threadedly coupled with the spherical inner hole of intermediate, and pitman is located at jackscrew
Between intermediate.
In the above-mentioned technical solutions, the nail seat has internal screw thread, and the jackscrew is threadedly coupled with the internal screw thread of nail seat, and
Jackscrew is equipped with axial assembly inner hole.
Good effect possessed by the present invention is: using it is of the invention can be after the fixed pedicle nail of double screws, due to this
Invention further includes stiffening plate and auxiliary nail, and the stiffening plate is located at the periphery of nail seat, and the auxiliary nail detachably connects with stiffening plate
It connects, and assists nail to be located at the side of button and be arranged side by side with button,
Fixed more stable effect can be played for sufferers of osteoporosis face, while screw is not easy to loosen and deviate from, and overcomes
There is the problem that single pedicle nail holding power is weaker in technology, in addition, double screw fixed structures of the invention may replace injection bone
The technical solution of cement, it is not only highly-safe, and also operation also facilitates.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of specific embodiment of the present invention；
Fig. 2 is the schematic perspective view of stiffening plate in Fig. 1；
Fig. 3 is the schematic perspective view of stiffening plate and the assembly of lock pin and cardo ring in Fig. 1；
Fig. 4 is the schematic perspective view of cardo ring of the present invention；
Fig. 5 is schematic perspective view of the invention.
Specific embodiment
Below in conjunction with attached drawing and the embodiment provided, the present invention is further illustrated, and however, it is not limited to this.
As shown in Fig. 1,2,3,4,5, it is a kind of can the fixed pedicle nail of double screws, including nail seat 1, jackscrew 2, pitman 3
With button 4, the nail seat 1 has axially extending bore, and button 4 has ball head 41, and the nail rod of the button 4 passes through nail seat
1 axially extending bore, and the ball head 41 of button 4 is connect with nail seat 1, the jackscrew 2 is located in the axially extending bore of nail seat 1 and position
In the top of the ball head 41 of button 4, the jackscrew 2 is detachably connected with nail seat 1, and the pitman 3 is radially across nail seat
1, and between jackscrew 2 and the ball head 41 of button 4,
It further include stiffening plate 5 and auxiliary nail 7, the stiffening plate 5 is located at the periphery of nail seat 1, and the auxiliary nail 7 can with stiffening plate 5
Dismantling connection, and assist nail 7 to be located at the side of button 4 and be arranged side by side with button 4.
As shown in Figure 1,3, auxiliary nail circumferencial direction rotation in order to prevent further includes auxiliary nail universal adjustment locking mechanism,
The auxiliary nail universal adjustment locking mechanism includes cardo ring 6 and lock pin 8, and the cardo ring 6 is located in stiffening plate 5, described auxiliary
Nail 7 is helped to be detachably connected with cardo ring 6, the lock pin 8 is located at the side in stiffening plate 5 and being located at cardo ring 6, and by lock pin 8
Cardo ring 6 and the locking of stiffening plate 5 are integrated.
As shown in figure 3, assembling and circumferentially fixed cardo ring prevent from rotating for convenience, the stiffening plate 5 is equipped with mutual
The lockpin hole 51 and cardo ring mounting hole 52 of perforation, cardo ring 6 have opening 61, and the cardo ring 6 is located at the universal of stiffening plate 5
In ring mounting hole 52, lock pin 8 is located in lockpin hole 51, and the part of lock pin 8 be caught in the opening 61 of cardo ring 6 and with its phase
It supports.
As shown in Figure 2,4, angular adjustment cardo ring, the cardo ring mounting hole 52 of the stiffening plate 5 are not limited for convenience
For spherical pore, and cardo ring 6 is the spherical universal ring to match with spherical universal ring mounting hole 52.
As shown in Figure 1, in order to improve the binding force between auxiliary nail and cardo ring, the cardo ring 6 is locked with taper
Threaded hole 62, the head of the auxiliary nail 7 are screwed into the taper locking threaded hole 62 of cardo ring 6.
Stiffening plate 5 of the present invention is an integral structure either split type structure with nail seat 1.
As shown in Fig. 2, the stiffening plate 5 includes the nail being mutually integrated when stiffening plate 5 and nail seat 1 are split type structure
Seat connection ring 53 and auxiliary nail seat 54, the periphery of the nail seat 1 are equipped with support level 11, and the nail seat connection ring 53 is sleeved on nail
The periphery of seat 1 is simultaneously supported on support level 11, and auxiliary nail seat 54 is located at the side of nail seat 1, the head of the auxiliary nail 54
It is detachably connected with the cardo ring 6 in auxiliary nail seat 54.
As shown in Fig. 2, in order to facilitate pitman can pressed stiffening plate, prevent axial direction mobile, the nail seat connection
Ring 53 has nail seat positioning hole 531, and boss 532 is equipped at the nail seat positioning hole 531 of nail seat connection ring 53, described
Pitman 3 offsets with boss 532.In use, by being screwed down jackscrew, so that jackscrew compresses pitman compression boss simultaneously,
Ensure the stability after stiffening plate is fixed.
As shown in Figure 1, adjusting ball head is followed closely for convenience, it is equipped in the axially extending bore of the nail seat 1 and is threadedly coupled with it
Intermediate 9, the intermediate 9 have spherical inner hole 91, and 91 spiral shell of spherical inner hole of the ball head 41 of button 4 and intermediate 9
Line connection, and pitman 3 is between jackscrew 2 and intermediate 9.
As shown in Figure 1, connecting for convenience, the nail seat 1 has internal screw thread, the internal screw thread spiral shell of the jackscrew 2 and nail seat 1
Line connection, and jackscrew 2 is equipped with axial assembly inner hole 21.
Stick (pitman) is worn for convenience, is previously implanted button 4, and need to adjust nail seat angle according to operation.
According to the position of implantation auxiliary nail in operation, cardo ring 6 is first adjusted, is then replanted into auxiliary nail 7, when auxiliary nail 7
When being screwed into the taper locking threaded hole 62 of cardo ring 6 to extreme position, cardo ring 6 and stiffening plate are in holding state, the lock
The part of pin 8 is caught in the opening 61 of cardo ring 6 and offsets with it, prevents cardo ring 6 from circumferencial direction rotation occur.
The present invention can play fixed more stable effect for sufferers of osteoporosis face, while screw is not easy to loosen and take off
Out, the problem that single pedicle nail holding power is weaker in prior art is overcome, in addition, double screw fixed structures of the invention can
Replace the technical solution of injection bone cement, it is not only highly-safe, and also operation also facilitates.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (10)
1. one kind can the fixed pedicle nail of double screws, including nail seat (1), jackscrew (2), pitman (3) and button (4), institute
Nail seat (1) is stated with axially extending bore, button (4) has ball head (41), and the nail rod of the button (4) passes through nail seat (1)
Axially extending bore, and the ball head (41) of button (4) is connect with nail seat (1), and the jackscrew (2) is located at the axial direction of nail seat (1)
The top of ball head (41) in through-hole and positioned at button (4), the jackscrew (2) are detachably connected with nail seat (1), the company
(3) are taken over the baton radially across nail seat (1), and between jackscrew (2) and the ball head (41) of button (4), it is characterised in that:
Further include stiffening plate (5) and auxiliary nail (7), the stiffening plate (5) is located at the periphery of nail seat (1), the auxiliary nail (7) and
Stiffening plate (5) is detachably connected, and nail (7) is assisted to be located at the side of button (4) and be arranged side by side with button (4).
2. according to claim 1 can the fixed pedicle nail of double screws, it is characterised in that: further include that auxiliary follows closely universal tune
Locking mechanism is saved, the auxiliary nail universal adjustment locking mechanism includes cardo ring (6) and lock pin (8), and the cardo ring (6) is located at
In stiffening plate (5), the auxiliary nail (7) is detachably connected with cardo ring (6), and the lock pin (8) is located on stiffening plate (5) and position
Cardo ring (6) and stiffening plate (5) locking are integrated in the side of cardo ring (6), and by lock pin (8).
3. according to claim 2 can the fixed pedicle nail of double screws, it is characterised in that: the stiffening plate (5) is equipped with
The lockpin hole (51) and cardo ring mounting hole (52) being mutually communicated, cardo ring (6) have opening (61), and the cardo ring (6) sets
In the cardo ring mounting hole (52) of stiffening plate (5), lock pin (8) is located in lockpin hole (51), and the part of lock pin (8) is caught in ten thousand
It offsets in the opening (61) of Xiang Huan (6) and with it.
4. according to claim 3 can the fixed pedicle nail of double screws, it is characterised in that: the ten thousand of the stiffening plate (5)
It is spherical pore to ring mounting hole (52), and cardo ring (6) is the spherical universal ring to match with spherical universal ring mounting hole (52).
5. according to claim 2 can the fixed pedicle nail of double screws, it is characterised in that: the cardo ring (6) has
Taper locks threaded hole (62), and the head of the auxiliary nail (7) is screwed into taper locking threaded hole (62) of cardo ring (6).
6. according to claim 1 can the fixed pedicle nail of double screws, it is characterised in that: the stiffening plate (5) and nail
Seat (1) is an integral structure.
7. according to claim 1 can the fixed pedicle nail of double screws, it is characterised in that: the stiffening plate (5) includes
The nail seat connection ring (53) and auxiliary nail seat (54) being mutually integrated, the periphery of the nail seat (1) is equipped with support level (11), described
Nail seat connection ring (53) is sleeved on the periphery of nail seat (1) and is supported on support level (11), and nail seat (54) is assisted to be located at nail
The side of seat (1), head and auxiliary nail seat (54) of the auxiliary nail (54) are detachably connected.
8. according to claim 7 can the fixed pedicle nail of double screws, it is characterised in that: the nail seat connection ring (53)
Boss (532) are equipped with nail seat positioning hole (531), and at the nail seat positioning hole (531) of nail seat connection ring (53),
The pitman (3) offsets with boss (532).
9. according to claim 1 can the fixed pedicle nail of double screws, it is characterised in that: the axial direction of the nail seat (1)
The intermediate (9) being threadedly coupled with it is equipped in through-hole, the intermediate (9) has spherical inner hole (91), and button (4)
Ball head (41) is threadedly coupled with the spherical inner hole (91) of intermediate (9), and pitman (3) is located at jackscrew (2) and intermediate (9)
Between.
10. according to claim 1 can the fixed pedicle nail of double screws, it is characterised in that: the nail seat (1) has interior
Screw thread, the jackscrew (2) are threadedly coupled with the internal screw thread of nail seat (1), and jackscrew (2) is equipped with axial assembly inner hole (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910481951.8A CN110338894B (en) | 2019-06-04 | 2019-06-04 | Pedicle screw capable of being fixed by double screws |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910481951.8A CN110338894B (en) | 2019-06-04 | 2019-06-04 | Pedicle screw capable of being fixed by double screws |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110338894A true CN110338894A (en) | 2019-10-18 |
| CN110338894B CN110338894B (en) | 2023-05-09 |
Family
ID=68181496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910481951.8A Active CN110338894B (en) | 2019-06-04 | 2019-06-04 | Pedicle screw capable of being fixed by double screws |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110338894B (en) |
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| CN109475371A (en) * | 2016-03-17 | 2019-03-15 | 美多斯国际有限公司 | Multiple spot fixation implant |
| CN208838136U (en) * | 2018-03-29 | 2019-05-10 | 常州市南翔医疗器械有限公司 | Cyclic annular universal lock steel plate |
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| CN2598519Y (en) * | 2003-01-29 | 2004-01-14 | 邱贵兴 | Intenral fixed device for vertebral arch pedicle of vertebral column |
| US20070049933A1 (en) * | 2005-08-30 | 2007-03-01 | Ahn Sae Y | Multi-axial spinal pedicle screw |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110338894B (en) | 2023-05-09 |
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