CN206044709U - A kind of automatically reset pedicle nail - Google Patents
A kind of automatically reset pedicle nail Download PDFInfo
- Publication number
- CN206044709U CN206044709U CN201620153627.5U CN201620153627U CN206044709U CN 206044709 U CN206044709 U CN 206044709U CN 201620153627 U CN201620153627 U CN 201620153627U CN 206044709 U CN206044709 U CN 206044709U
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- CN
- China
- Prior art keywords
- spring
- bulb
- adapter
- briquetting
- button
- 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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- 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
- A61B17/7062—Devices acting on, attached to, or simulating the effect of, vertebral processes, vertebral facets or ribs ; Tools for such devices
- A61B17/7064—Devices acting on, attached to, or simulating the effect of, vertebral facets; Tools therefor
-
- 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
- A61B17/7002—Longitudinal elements, e.g. rods
- A61B17/7004—Longitudinal elements, e.g. rods with a cross-section which varies along its length
- A61B17/7005—Parts of the longitudinal elements, e.g. their ends, being specially adapted to fit in the screw or hook heads
-
- 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
- A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
-
- 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
- A61B17/8605—Heads, i.e. proximal ends projecting from bone
- A61B17/861—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver
- A61B17/862—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver at the periphery of the screw head
-
- 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
- A61B2017/564—Methods for bone or joint treatment
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Neurology (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
This utility model provides a kind of automatically reset pedicle nail, including adapter, button and plug screw, adapter is a hollow cylinder, button includes the bulb being connected with each other and rivet nut, adapter is respectively arranged at two ends with upper shed and under shed, plug screw is arranged in adapter upper shed, button is arranged in adapter under shed, rivet nut stretches out adapter, described pedicle nail also includes spring and briquetting, the spring and briquetting are arranged on inside adapter, in plane at the top of the bulb, the spring is arranged on the top of button, the briquetting is arranged on above spring, spring one end props up briquetting, the other end props up bulb.This utility model simple structure, it is easy to use, using the elasticity of spring, make button automatically reset after activity, do not affect the support to vertebral body.
Description
Technical field
This utility model is related to a kind of automatically reset vertebral arch of a kind of medical apparatus and instruments, particularly vertebra internal fixation operation
Root is followed closely.
Background technology
The application of pedicle nail, comes in recent two decades, progressively comes into vogue at home, be mainly used in bone surgery
On, the disease such as prolapse of lumbar intervertebral disc or lumbar spinal stenosises of patient；During operation, first by the lumbar discectomy of necrosis, insert and melt
Compound, then it is implanted into pedicle nail in adjacent lumbar vertebra respectively, last Orthopedic rod loads adapter, and the plug screw for being connected device is solid
Fixed, just implanted nail and Orthopedic rod link together adjacent lumbar vertebra.The benefit of this operation can be the feelings in mandatory fixation
Under condition, adjacent intervertebral fusion is allowed, fundamentally solve its diseased region.But another problem is also brought from this：By fixed
Lumbar vertebra loses mobility, it is impossible to stretch before and after enough, has increased the pressure that neighbouring intervertebral disc bears, after a period of time, and
Produce new pathological changes.
For this problem, there has been proposed various On Fluctuations pedicle nails, but these pedicle screws are actually used
In, with physical activity, button can form different angles from adapter, but can not be good return to original state, this
Body activity can be given people makes troubles.
The content of the invention
Can not automatically reset this problem for pedicle nail of the prior art mentioned above, this utility model is provided
A kind of improvement project of pedicle nail, applies an auxiliary force to button using the elasticity of spring, solves this problem.
This utility model solves the technical scheme of its technical problem employing：A kind of automatically reset pedicle nail, including
Adapter, button and plug screw, adapter are a hollow cylinder, and button includes the bulb being connected with each other and rivet nut, adapter
Upper shed and under shed are respectively arranged at two ends with, plug screw is arranged in adapter upper shed, and button is arranged on adapter under shed
Interior, rivet nut stretches out adapter, and described pedicle nail also includes that spring and briquetting, the spring and briquetting are arranged in adapter
Portion, is in plane at the top of the bulb, and the spring is arranged on the top of button, and the briquetting is arranged on above spring, bullet
Spring one end props up briquetting, and the other end props up bulb.
This utility model solves the technical scheme of its technical problem employing and further comprises：
Further, the spring is column spring, and the spring is vertically installed between briquetting and bulb.
Further, the spring is provided with more than one.
Further, when the quantity of the spring has two or more, the spring is circumferentially distributed.
Further, the briquetting is provided with blind hole towards the one side of bulb, and spring is arranged in blind hole.
Further, blind hole is provided with the top of the bulb, spring is arranged in blind hole.
Further, the briquetting is provided with boss towards the one side of bulb, and the boss is snapped in spring.
Further, boss is provided with the top of the bulb, the boss is snapped in spring.
Further, polygonal tooling hole is provided with the top of the bulb.
The beneficial effects of the utility model are：It is optimized by the part to pedicle screws, helps the ball of pedicle nail
Head nail automatically resets, and clinical needs can be answered if necessary to use cooperatively with other briquettings, constitutes multiplex pedicle nail, expands
The purposes of pedicle screws.
This utility model is described further below in conjunction with the drawings and specific embodiments.
Description of the drawings
Structural representations of the Fig. 1 for one pedicle nail of this utility model embodiment；
Structural representations of the Fig. 2 for two pedicle nail of this utility model embodiment；
Structural representations of the Fig. 3 for the briquetting, spring and button of two pedicle nail of this utility model embodiment；
Top views of the Fig. 4 for the button bulb plane of two pedicle nail of this utility model embodiment；
1st, plug screw, 2, briquetting, 3, Orthopedic rod, 4, spring, 5, adapter, 6, button, 21, boss, 22, briquetting blind hole,
61st, the blind hole of bulb plane, 62, tooling hole.
Specific embodiment
Pedicle nail described in this utility model embodiment one as shown in figure 1, including adapter 5, button 6, plug screw 1,
Spring 4 and briquetting 2.Adapter 5 is a hollow cylinder, is respectively arranged at two ends with upper shed and under shed, and plug screw 1 is arranged on adapter
In 5 upper sheds, upper shed inwall is provided with the screw thread for installing plug screw, and briquetting 2 and spring 4 are arranged on inside adapter 5, briquetting 2
Above spring 4.In the present embodiment, spring 4 uses column spring, and the quantity of spring is one, the size of spring 4
With length for clinical setting determine, in being embodied as, user can with according to clinic need adjust spring 4 species and
Quantity.Button 6 installed under shed includes the bulb being connected with each other and rivet nut, and its bulb is connected to lower opening, under open
Sphere is provided with mouthful, is coordinated with bulb gap, rivet nut stretches out adapter.The bulb of button 6 be a hemisphere, the top of bulb
In plane, spring 4 is vertically installed at the plane at the top of bulb, and 4 one end of spring props up briquetting 2, and the other end is propped up at the top of bulb.
As the present embodiment only uses a spring, in order that uniform force, spring 4 to be arranged on the center at the top of bulb, therefore, press
Block 2 is provided with a boss 21, and boss 21 is snapped in 4 one end of spring, is provided with a blind hole 61 at the top of bulb, spring 4 it is another
One end is arranged in blind hole 61, to fix the position of spring 4, can be convenient and real according to number springs, production in actual production
With needs, boss and blind hole are set.A hexagonal tooling hole 62 is additionally provided with the top of bulb, it is possible to use instrument inserts work
The position of adjusting ball head nail 6 in tool hole 62.One group of U-type groove is additionally provided with adapter 5, for installing Orthopedic rod 3, U-type groove is adopted
The U-type groove structure of the installation Orthopedic rod in conventional adapter.
Using front, button 6, spring 4 and briquetting 2 can be pre-installed in adapter 5, and button 6 is connected to lower opening,
Spring 4 is vertically installed in the blind hole 61 of button 6, and briquetting 2 is arranged on spring 4, and the boss 21 of briquetting 2 snaps in spring 4
The other end.After whole pedicle nail implantation vertebral bodys, Orthopedic rod 3 is installed on adapter 5, plug screw 1 is installed to into adapter 5
In upper shed, tighten, fix Orthopedic rod 3.Pedicle nail in use, the angle of button 6 can change with physical activity,
But spring 4 can produce a relative active force, button 6 is made to reset.
As shown in Figures 2 to 4, the spring 4 in the present embodiment uses 8 column springs to embodiment two, to make dynamics equal
It is even, 8 column springs be circumferentially distributed in briquetting 2 and bulb at the top of plane between.In order to fix the position of spring 4, briquetting 2
In the plane towards bulb and bulb top planes, the blind hole 22 being engaged with the population size of spring has accordingly been opened up
With 61, one end of spring 4 is arranged in the blind hole 22 of briquetting 2, and the other end is arranged in the blind hole 61 at the top of bulb.
Using front, button 6, spring 4, briquetting 2 are pre-installed in adapter 5, and button 6 is arranged under shed, spring 4
It is pressed on bulb, loads in blind hole 61, briquetting 2 is arranged on spring 4, and the other end of spring 4 all installs blind on briquetting 2
Hole 21.During installation, after button implantation vertebral body, Orthopedic rod 3 is installed on adapter 5, plug screw 1 is installed to into adapter 5
In upper shed, tighten, fix Orthopedic rod 3.
Above-described embodiment is this utility model preferred implementation, other all its principles and basic structure and the present embodiment phase
It is same or approximate, within this utility model protection domain.
Claims (7)
1. a kind of automatically reset pedicle nail, including adapter, button and plug screw, adapter is a hollow cylinder, bulb
Nail includes the bulb that is connected with each other and rivet nut, and adapter one end is upper shed, and the other end of adapter is under shed, and plug screw is installed
In being open on the connectors, button is arranged in adapter under shed, and rivet nut stretches out adapter, it is characterised in that described
Pedicle nail also includes that spring and briquetting, the spring and briquetting are arranged on inside adapter, in plane at the top of the bulb,
The spring is arranged on the top of button, and the briquetting is arranged on above spring, and spring one end props up briquetting, and the other end is propped up
Bulb；The spring is column spring, and the spring is vertically installed between briquetting and bulb.
2. pedicle nail as claimed in claim 1, it is characterised in that when the quantity of the spring has two or more, the bullet
Spring is circumferentially distributed.
3. pedicle nail as claimed in claim 1, it is characterised in that the briquetting is provided with blind hole towards the one side of bulb,
Spring is arranged in blind hole.
4. pedicle nail as claimed in claim 1, it is characterised in that blind hole is provided with the top of the bulb, spring is arranged on blind
In hole.
5. pedicle nail as claimed in claim 1, it is characterised in that the briquetting is provided with boss towards the one side of bulb,
The boss is snapped in spring.
6. pedicle nail as claimed in claim 1, it is characterised in that boss is provided with the top of the bulb, the boss is snapped in
In spring.
7. pedicle nail as claimed in claim 1, it is characterised in that be provided with polygonal tooling hole at the top of institute's bulb.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620105935 | 2016-02-02 | ||
| CN2016201059350 | 2016-02-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206044709U true CN206044709U (en) | 2017-03-29 |
Family
ID=55814525
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610113650.6A Pending CN105534583A (en) | 2016-02-02 | 2016-02-29 | Automatically-restored pedicle screw |
| CN201620153627.5U Active CN206044709U (en) | 2016-02-02 | 2016-02-29 | A kind of automatically reset pedicle nail |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610113650.6A Pending CN105534583A (en) | 2016-02-02 | 2016-02-29 | Automatically-restored pedicle screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105534583A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105534583A (en) * | 2016-02-02 | 2016-05-04 | 薛妹妹 | Automatically-restored pedicle screw |
| WO2019237216A1 (en) * | 2018-06-13 | 2019-12-19 | 何伟义 | Low-notch microdynamic pedicle screw having buffering function |
| CN111329568A (en) * | 2020-04-03 | 2020-06-26 | 贵州医科大学附属医院 | Flexible combined fixing device for spine |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108464859A (en) * | 2018-04-17 | 2018-08-31 | 上海市第六人民医院 | A kind of dynamical feedback fixed system |
| CN110141344A (en) * | 2019-06-08 | 2019-08-20 | 何静 | A kind of flexible constraint formula pedicle nail of anti-explosion filaments |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10320417A1 (en) * | 2003-05-07 | 2004-12-02 | Biedermann Motech Gmbh | Dynamic anchoring device and dynamic stabilization device for bones, in particular for vertebrae, with such an anchoring device |
| KR100589728B1 (en) * | 2004-02-09 | 2006-06-15 | 메딕스얼라인 주식회사 | an internal fixator for spine |
| CN202136405U (en) * | 2011-04-14 | 2012-02-08 | 北京市富乐科技开发有限公司 | Micro-increment support pedicle screw |
| CN203539425U (en) * | 2013-09-29 | 2014-04-16 | 何静 | Vertebral pedicle nail |
| ES2611014T3 (en) * | 2014-01-13 | 2017-05-04 | Biedermann Technologies Gmbh & Co. Kg | Coupling assembly for coupling a rod to a bone anchoring element, and polyaxial bone anchoring device |
| CN105534583A (en) * | 2016-02-02 | 2016-05-04 | 薛妹妹 | Automatically-restored pedicle screw |
-
2016
- 2016-02-29 CN CN201610113650.6A patent/CN105534583A/en active Pending
- 2016-02-29 CN CN201620153627.5U patent/CN206044709U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105534583A (en) * | 2016-02-02 | 2016-05-04 | 薛妹妹 | Automatically-restored pedicle screw |
| WO2019237216A1 (en) * | 2018-06-13 | 2019-12-19 | 何伟义 | Low-notch microdynamic pedicle screw having buffering function |
| CN111329568A (en) * | 2020-04-03 | 2020-06-26 | 贵州医科大学附属医院 | Flexible combined fixing device for spine |
| CN111329568B (en) * | 2020-04-03 | 2023-04-11 | 贵州医科大学附属医院 | Flexible combined fixing device for spine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105534583A (en) | 2016-05-04 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |