CN105534583A - Automatically-restored pedicle screw - Google Patents
Automatically-restored pedicle screw Download PDFInfo
- Publication number
- CN105534583A CN105534583A CN201610113650.6A CN201610113650A CN105534583A CN 105534583 A CN105534583 A CN 105534583A CN 201610113650 A CN201610113650 A CN 201610113650A CN 105534583 A CN105534583 A CN 105534583A
- Authority
- CN
- China
- Prior art keywords
- spring
- bulb
- adapter
- briquetting
- pedicle nail
- 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.)
- Pending
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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
- 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
The invention provides an automatically-restored pedicle screw which comprises a connector, a ball screw and a screw plug. The connector is a hollow column. The ball screw comprises a ball and a screw body connected with the ball, and an upper opening and a lower opening are formed in the two ends of the connector respectively. The screw plug is installed in the upper opening of the connector, the ball screw is installed in the lower opening of the connector, and the screw body stretches out of the connector. The automatically-restored pedicle screw further comprises a spring and a pressing block, wherein the spring and the pressing block are installed inside the connector. The top of the ball is in a plane shape, the spring is installed above the ball screw, the pressing block is installed above the spring, one end of the spring abuts against the pressing block, and the other end of the spring abuts against the ball. The automatically-restored pedicle screw is simple in structure and convenient to use, the ball screw restores automatically after moving through the elasticity of the spring, and support to the centrum is not influenced.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, particularly the automatically reset pedicle nail of the one of vertebra internal fixation operation.
Background technology
The application of pedicle nail, come at recent two decades, progressively come into vogue at home, main uses is on bone surgery, the diseases such as the prolapse of lumbar intervertebral disc of patient or lumbar spinal stenosis; During operation, first by the lumbar discectomy of necrosis, insert fusions, then implant pedicle nail respectively in adjacent lumbar vertebra, last Orthopedic rod loads adapter, and the plug screw being connected device is fixed, and adjacent lumbar vertebra just implanted nail and Orthopedic rod links together.Benefit of this operation be can when mandatory fixing, allow adjacent intervertebral fusion, fundamentally solve its diseased region.But from then on also bring another problem: the lumbar vertebra be fixed loses mobility, can not stretch front and back, increased the weight of the pressure that contiguous intervertebral disc bears, after a period of time, produced again new pathological changes.
For this problem, there has been proposed various On Fluctuations pedicle nail, but these pedicle screws in actual use, along with physical activity, button can form different angles from adapter, but can not be good return to original state, this can make troubles to physical activity.
Summary of the invention
Can not to automatically reset this problem for the above-mentioned pedicle nail of the prior art mentioned, the invention provides a kind of improvement project of pedicle nail, utilize the elasticity of spring to apply an auxiliary force to button, head it off.
The technical scheme that the present invention solves the employing of its technical problem is: a kind of automatically reset pedicle nail, comprise adapter, button and plug screw, adapter is a hollow cylinder, button comprises interconnective bulb and rivet nut, adapter two ends are respectively equipped 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 comprises spring and briquetting, described spring and briquetting are arranged on adapter inside, described bulb top is plane, described spring fitting is above button, described briquetting is arranged on above spring, spring one end props up briquetting, the other end props up bulb.
The technical scheme that the present invention solves the employing of its technical problem further comprises:
Further, described spring is column spring, and described spring is vertically arranged between briquetting and bulb.
Further, described spring is provided with more than one.
Further, when the quantity of described spring has a two or more, described spring circumferentially distributes.
Further, described briquetting is provided with blind hole towards the one side of bulb, and spring fitting is in blind hole.
Further, described bulb top is provided with blind hole, and spring fitting is in blind hole.
Further, described briquetting is provided with boss towards the one side of bulb, and described boss snaps in spring.
Further, described bulb top is provided with boss, and described boss snaps in spring.
Further, described bulb top is provided with polygonal tooling hole.
The invention has the beneficial effects as follows: by being optimized the part of pedicle screws, the button of pedicle nail is helped to automatically reset, and can answer if desired clinical needs and other briquettings with the use of, form multiplex pedicle nail, expanded the purposes of pedicle screws.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention one pedicle nail;
Fig. 2 is the structural representation of the embodiment of the present invention two pedicle nail;
Fig. 3 is the structural representation of the briquetting of the embodiment of the present invention two pedicle nail, spring and button;
Fig. 4 is the top view of the button bulb plane of the embodiment of the present invention two pedicle nail;
1, plug screw, 2, briquetting, 3, Orthopedic rod, 4, spring, 5, adapter, 6, button, 21, boss, 22, briquetting blind hole, 61, the blind hole of bulb plane, 62, tooling hole.
Detailed description of the invention
Pedicle nail described in the embodiment of the present invention one as shown in Figure 1, comprises adapter 5, button 6, plug screw 1, spring 4 and briquetting 2.Adapter 5 is a hollow cylinder, and two ends are respectively equipped with upper shed and under shed, and plug screw 1 is arranged in adapter 5 upper shed, and upper shed inwall is provided with the screw thread installing plug screw, and briquetting 2 and spring 4 are arranged on inside adapter 5, and briquetting 2 is arranged on above spring 4.What in the present embodiment, spring 4 adopted is column spring, and the quantity of spring is one, and size and the length of spring 4 are determined for clinical setting, and in concrete enforcement, user can also need according to clinical the kind and the quantity that adjust spring 4.The button 6 being arranged under shed comprises interconnective bulb and rivet nut, and its bulb is connected to lower opening, and lower opening is provided with sphere, and with bulb matched in clearance, rivet nut stretches out adapter.The bulb of button 6 is a hemisphere, and the top of bulb is plane, and spring 4 is vertically arranged on the plane at bulb top, and spring 4 one end props up briquetting 2, and the other end props up bulb top.Because the present embodiment only uses a spring, in order to make uniform force, spring 4 will be arranged on the center at bulb top, and therefore, briquetting 2 is provided with a boss 21, boss 21 snaps in spring 4 one end, bulb top is provided with a blind hole 61, and the other end of spring 4 is arranged in blind hole 61, with the position of fixing spring 4, according to number springs, production facility and practical needs, boss and blind hole can be set in actual production.The top of bulb is also provided with a hexagonal tooling hole 62, and instrument can be utilized to insert the position of adjusting ball head nail 6 in tooling hole 62.Adapter 5 is also provided with one group of U-type groove, for installing Orthopedic rod 3, U-type groove adopts the U-type groove structure of the installation Orthopedic rod in conventional adapter.
Before using, button 6, spring 4 and briquetting 2 meeting pre-installation is in adapter 5, and button 6 is connected to lower opening, and spring 4 is vertically arranged 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 the other end of spring 4.Orthopedic rod 3 is installed on adapter 5, is installed to by plug screw 1 in the upper shed of adapter 5, tightens, fix Orthopedic rod 3 after implanting vertebral body by whole pedicle nail.Pedicle nail in using, the angle of button 6 can change along with physical activity, but spring 4 can produce a relative active force, and button 6 is resetted.
As shown in Figures 2 to 4, what the spring 4 in the present embodiment adopted is 8 column springs to embodiment two, and for making dynamics even, 8 column springs are circumferentially distributed between the plane at briquetting 2 and bulb top.In order to the position of fixing spring 4, briquetting 2 is with in the plane and bulb top planes of bulb, offered the blind hole 22 and 61 matched with the population size of spring accordingly, 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 bulb top.
Before using, button 6, spring 4, briquetting 2 are pre-installed in adapter 5, and button 6 is arranged under shed, and spring 4 is pressed on bulb, and load in blind hole 61, briquetting 2 is arranged on spring 4, and the other end of spring 4 is all fit into the blind hole 21 on briquetting 2.During installation, Orthopedic rod 3 is installed on adapter 5, is installed to by plug screw 1 in the upper shed of adapter 5, tightens, fix Orthopedic rod 3 after implanting vertebral body by button.
Above-described embodiment is the preferred embodiment for the present invention, and other its principles all are identical with the present embodiment or approximate with basic structure, all within scope.
Claims (9)
1. an automatically reset pedicle nail, comprise adapter, button and plug screw, adapter is a hollow cylinder, button comprises interconnective bulb and rivet nut, adapter one end is upper shed, the other end of adapter is under shed, plug screw is arranged in adapter upper shed, button is arranged in adapter under shed, rivet nut stretches out adapter, it is characterized in that, described pedicle nail also comprises spring and briquetting, described spring and briquetting are arranged on adapter inside, described bulb top is plane, described spring is arranged on the top of button, described briquetting is arranged on above spring, spring one end props up briquetting, the other end props up bulb.
2. pedicle nail as claimed in claim 1, it is characterized in that, described spring is column spring, and described spring is vertically arranged between briquetting and bulb.
3. pedicle nail as claimed in claim 1, it is characterized in that, described spring is provided with more than one.
4. pedicle nail as claimed in claim 1, is characterized in that, when the quantity of described spring has a two or more, described spring circumferentially distributes.
5. pedicle nail as claimed in claim 1, it is characterized in that, described briquetting is provided with blind hole towards the one side of bulb, and spring fitting is in blind hole.
6. pedicle nail as claimed in claim 1, it is characterized in that, described bulb top is provided with blind hole, and spring fitting is in blind hole.
7. pedicle nail as claimed in claim 1, it is characterized in that, described briquetting is provided with boss towards the one side of bulb, and described boss snaps in spring.
8. pedicle nail as claimed in claim 1, it is characterized in that, described bulb top is provided with boss, and described boss snaps in spring.
9. pedicle nail as claimed in claim 1, it is characterized in that, institute's bulb top is provided with polygonal tooling hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610113650.6A CN105534583A (en) | 2016-02-02 | 2016-02-29 | Automatically-restored pedicle screw |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620105935 | 2016-02-02 | ||
| CN2016201059350 | 2016-02-02 | ||
| CN201610113650.6A CN105534583A (en) | 2016-02-02 | 2016-02-29 | Automatically-restored pedicle screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105534583A true CN105534583A (en) | 2016-05-04 |
Family
ID=55814525
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620153627.5U Active CN206044709U (en) | 2016-02-02 | 2016-02-29 | A kind of automatically reset pedicle nail |
| CN201610113650.6A Pending CN105534583A (en) | 2016-02-02 | 2016-02-29 | Automatically-restored pedicle screw |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620153627.5U Active CN206044709U (en) | 2016-02-02 | 2016-02-29 | A kind of automatically reset pedicle nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN206044709U (en) |
Cited By (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 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206044709U (en) * | 2016-02-02 | 2017-03-29 | 薛妹妹 | A kind of automatically reset pedicle nail |
| CN108720918A (en) * | 2018-06-13 | 2018-11-02 | 何伟义 | A kind of undercut mark On Fluctuations pedicle nail with pooling feature |
| CN111329568B (en) * | 2020-04-03 | 2023-04-11 | 贵州医科大学附属医院 | Flexible combined fixing device for spine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005074823A1 (en) * | 2004-02-09 | 2005-08-18 | Medixalign Co., Ltd. | Bone fixation apparatus |
| CN1784181A (en) * | 2003-05-07 | 2006-06-07 | 比德曼莫泰赫有限公司 | Dynamic anchoring device and dynamic stabilizing device, which serves to stabilize bones, particularly vertebrae, and which has an anchoring device of this type |
| 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 |
| CN104771219A (en) * | 2014-01-13 | 2015-07-15 | 比德尔曼技术有限责任两合公司 | Coupling assembly for coupling a rod to a bone anchoring element, and polyaxial bone anchoring device |
| CN206044709U (en) * | 2016-02-02 | 2017-03-29 | 薛妹妹 | A kind of automatically reset pedicle nail |
-
2016
- 2016-02-29 CN CN201620153627.5U patent/CN206044709U/en active Active
- 2016-02-29 CN CN201610113650.6A patent/CN105534583A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1784181A (en) * | 2003-05-07 | 2006-06-07 | 比德曼莫泰赫有限公司 | Dynamic anchoring device and dynamic stabilizing device, which serves to stabilize bones, particularly vertebrae, and which has an anchoring device of this type |
| WO2005074823A1 (en) * | 2004-02-09 | 2005-08-18 | Medixalign Co., Ltd. | Bone fixation apparatus |
| 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 |
| CN104771219A (en) * | 2014-01-13 | 2015-07-15 | 比德尔曼技术有限责任两合公司 | Coupling assembly for coupling a rod to a bone anchoring element, and polyaxial bone anchoring device |
| CN206044709U (en) * | 2016-02-02 | 2017-03-29 | 薛妹妹 | A kind of automatically reset pedicle nail |
Cited By (3)
| 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 |
| CN108464859B (en) * | 2018-04-17 | 2024-06-11 | 大博医疗科技股份有限公司 | Dynamic feedback fixing system |
| CN110141344A (en) * | 2019-06-08 | 2019-08-20 | 何静 | A kind of flexible constraint formula pedicle nail of anti-explosion filaments |
Also Published As
| Publication number | Publication date |
|---|---|
| CN206044709U (en) | 2017-03-29 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160504 |