CN106073874A - A kind of pedicle screw fixation system relocation device - Google Patents
A kind of pedicle screw fixation system relocation device Download PDFInfo
- Publication number
- CN106073874A CN106073874A CN201610402622.6A CN201610402622A CN106073874A CN 106073874 A CN106073874 A CN 106073874A CN 201610402622 A CN201610402622 A CN 201610402622A CN 106073874 A CN106073874 A CN 106073874A
- Authority
- CN
- China
- Prior art keywords
- rod
- pedicle screw
- fixation system
- screw fixation
- nut
- 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
Links
- 208000031481 Pathologic Constriction Diseases 0.000 claims description 2
- 210000001215 vagina Anatomy 0.000 claims description 2
- 230000000399 orthopedic effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 241001079814 Symphyotrichum pilosum Species 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 235000004224 Typha angustifolia Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- 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, e.g. stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7032—Screws or hooks with U-shaped head or back through which longitudinal rods pass
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- 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, e.g. stabilisers comprising fluid filler in an implant
- A61B17/7049—Connectors, not bearing on the vertebrae, for linking longitudinal elements together
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)
Abstract
The invention discloses a kind of pedicle screw fixation system relocation device, including first body of rod, second body of rod and multiple support bar, one end of described first body of rod and one end of described second body of rod are connected by a rotating shaft, described support bar is arranged for connecting described first body of rod and the pitman of pedicle screw fixation system and described second body of rod and the pitman of pedicle screw fixation system, so that described first body of rod and described second body of rod are fixed on spine nail system by support bar.The pedicle screw fixation system relocation device of the present invention can carry out reorientation to spine nail system easily, with resetting orthopedic intersegmental to patient spine more piece under the conditions of realizing Wicresoft.
Description
Technical field
The present invention relates to medical instruments field, particularly relate to a kind of pedicle screw fixation system relocation device.
Background technology
In spinal surgery, pedicle screw fixation system uses usually used as internal fixation system, and pedicle screw fixation system is main
Being made up of pedicle screw and pitman, its using method is: pedicle screw is first implanted the appointment position of each sections of spinal column,
Then it is tightly attached in the nail seat of pedicle screw by pitman, makes pitman be connected with each pedicle screw, so
Complete the implantation of pedicle screw fixation system.Such as, fusion between the interbody fusion often occurred clinically or spinous process, first by pedicle of vertebral arch
Screw placement lumbar vertebra vertebra both sides, generally implant 4 pedicle screws on vertebra, and both sides respectively implant two, homonymy
Two screws setting up and down, the most respectively two to two screws setting up and down between construction company take over the baton (titanium rod), be used for
Supporting lumbar vertebra.The pedicle screw fixation system implanted is able to maintain that stablizing between each spinal segments of Post operation, replaces spinal column to bear load,
Such as the torque load that trunk bends and stretches, spinal column is produced by lateral bending, the action such as torsion, spinal column is produced by the reason such as tissue gravity
The raw power load along spinal column direction.
In traditional pedicle screw fixation system, due to the existence of these load, it is very easy to the spine nail rod causing implanting
System deforms upon, and even needs second operation to be adjusted the position of pedicle screw fixation system when deformation is serious.At some
In the case of, it is likely to clinically need spine nail system carries out adjustment actively, so that the spine nail system implanted to carry out weight
Location, is also required to carry out second operation in most cases, just can complete this type of and adjust.
Therefore, those skilled in the art is devoted to develop a kind of novel instrument, and spine nail system conveniently carries out weight
Location, can avoid secondary otch to expose operation simultaneously, reduce the wound to patient and pain.
Summary of the invention
Because the drawbacks described above of prior art, in order to solve prior art be difficult to spine nail system is carried out reorientation this
One technical problem, the invention provides a kind of pedicle screw fixation system relocation device being applicable to and resetting spine nail, energy
Resetting orthopedic intersegmental to patient spine more piece under the conditions of enough realizing Wicresoft.
For achieving the above object, a kind of pedicle screw fixation system relocation device that the present invention provides, including first body of rod, the
Bipole body and multiple support bar, one end of described first body of rod and one end of described second body of rod are connected by a rotating shaft, described
Support bar is arranged for connecting described first body of rod and the pitman of pedicle screw fixation system and described second body of rod and spinal column
The pitman of nail-stick system, so that described first body of rod and described second body of rod are fixed on spine nail system by support bar.
Further, described first body of rod includes rod-like element, branch sleeve, the first nut and the second nut, described shaft-like
The end of part has external thread section, described first nut and described second nut and is respectively provided with and described external thread section matches
Female thread, described branch sleeve is socketed on described external thread section, the sidewall of described branch sleeve has the company extended
Connecing hole, described connecting hole is arranged for connecting described second body of rod.
Further, described second body of rod include rod-like element and the vertically disposed bolt of described rod-like element and with described spiral shell
The nut that bolt matches.
Further, described support bar includes that the body of rod and locking sleeve, the described body of rod include the first thread segment and with described
The second nut that the first nut that first thread segment matches and the second thread segment and described second thread segment match, institute
Stating the first thread segment and be positioned at one end of the described body of rod, described second thread segment is positioned at the middle part of the described body of rod, the described body of rod another
One end has clamping limb；Described locking sleeve is socketed on the described body of rod, and described locking sleeve includes first end and the second end
Portion, the first end of described lock sleeve jacket casing is resisted against described second nut, when described second nut is to described locking sleeve side
When mobile, the second end of described locking sleeve applies chucking power to described clamping limb, so that clamping limb clamping.
Further, the internal diameter of the second end of described locking sleeve is more than the internal diameter of described first end.
Further, described first body of rod has the connection that the first thread segment with the described support bar body of rod matches
Hole.
Further, described second body of rod has the connection that the first thread segment with the described support bar body of rod matches
Hole.
Below with reference to accompanying drawing, the technique effect of design, concrete structure and the generation of the present invention is described further, with
It is fully understood from the purpose of the present invention, feature and effect.
Accompanying drawing explanation
Fig. 1 is the overall schematic (before adjustment) of a preferred embodiment of the present invention；
Fig. 2 is the overall schematic (after adjustment) of a preferred embodiment of the present invention；
Fig. 3 is the partial structurtes schematic diagram of a preferred embodiment of the present invention；
Fig. 4 is the exploded structural representation of a preferred embodiment of the present invention；
Fig. 5 is the partial structurtes schematic diagram of a preferred embodiment of the present invention；
Fig. 6 is the partial structurtes schematic diagram of a preferred embodiment of the present invention.
Detailed description of the invention
As shown in Figure 1, 2, a kind of pedicle screw fixation system relocation device that the present embodiment provides, including first body of rod 1, the
Bipole body 2 and multiple support bar 3, one end of described first body of rod 1 and one end of described second body of rod 2 are connected by a rotating shaft,
Described support bar 3 is arranged for connecting described first body of rod 1 and the pitman 01 of pedicle screw fixation system and described second bar
The pitman 01 of body 2 and pedicle screw fixation system, so that described first body of rod 1 and described second body of rod 2 are fixed by support bar 3
In spine nail system.First body of rod 1 and second body of rod 2 connect two adjacent spine nail systems respectively, by the first body of rod 1 He
Second body of rod 2 can regulate the relative position of these two adjacent spine nail systems.In the present embodiment, described first body of rod and institute
State the connection between second body of rod, for the connection of adjustable angle, thus realize can regulating easily in Clinical practice adjacent
The position of pedicle screw fixation system.As shown in Figure 1, 2, can be by pedicle screw fixation system relocation device from figure by angle adjustment
Condition selecting shown in 1 is progressively adjusted to the state shown in Fig. 2.In the present invention, the number of concrete support bar, can basis
Situation is adjusted, and preferably includes two and described first body of rod according to the pedicle screw fixation system relocation device of the present invention
Support bar 3 that 1 matches and/or two support bars 3 matched with described second body of rod 2.
As shown in Figure 2,3, 4, in the present embodiment, described first body of rod 1 includes rod-like element 11, branch sleeve the 12, first spiral shell
Mother 13 and the second nut 14, the end of described rod-like element 11 has external thread section, described first nut 13 and described second spiral shell
Female 14 are respectively provided with the female thread matched with described external thread section, and described branch sleeve 12 is socketed on described external thread section, position
Between the first nut 13 and the second nut 14, and can slide along described external thread section, the sidewall of described branch sleeve 12 has
The connecting hole 121 extended, described connecting hole 121 is had to be arranged for connecting described second body of rod 2.Described second body of rod 2
Including rod-like element 21 and the described vertically disposed bolt of rod-like element 21 22 and the nut 23 matched with described bolt 22.Bolt
22 realize the first body of rod 1 and connection of second body of rod 2 through being tightened by nut 23 after connecting hole 121.Further, 12, sleeve
In the first nut 13 and centre of the second nut 14, sleeve 12 can slide along rod-like element 11, thus allows adjusting angle
Meanwhile, the first body of rod 1 and relative distance of second body of rod 2 can be regulated, after distance is adjusted, by the first nut 13 and second
Nut 14 positions, and more easily achieves pedicle screw fixation system reorientation.Branch sleeve 12 is positioned at described first nut 13
With second between nut 14.By regulating the first nut 13 and position of the second nut 14, it is possible to the position to branch sleeve 12
It is adjusted, and butt muff 12 carries out spacing.
As it is shown in figure 5, described support bar 3 includes that the body of rod 31 and locking sleeve 32, the described body of rod 31 include the first thread segment
311 and the first nut 312 of matching with described first thread segment and the second thread segment 313 and described second thread segment phase
The second nut 314 coordinated, described first thread segment 313 is positioned at one end of the described body of rod 31, and described second thread segment 314 is positioned at
The middle part of the described body of rod 31, the other end of the described body of rod 31 has clamping limb 315；Described locking sleeve 32 is socketed on the described body of rod
On 31, and can slide along the described body of rod 31, described locking sleeve 32 includes first end 321 and the second end 322, described locking
The first end 321 of set jacket casing 32 is resisted against described second nut 314, when described second nut 314 is to described locking sleeve 32
When direction is moved, the second end 322 of described locking sleeve 32 applies chucking power to described clamping limb 315, so that clamping limb
Clamping.
As shown in Figure 6, the lower end of the body of rod 31 of described support bar 3 has two clamping limbs 31 being oppositely arranged, described folder
Gripping arm 31 is arranged for connecting pitman 01, when the power that clamping limb 31 is applied by the second end 322 of locking sleeve, and folder
Gripping arm 31 inwardly clamps, thus realizes support bar 3 and the connection of pitman 01.In other embodiments, can be by the body of rod 31
Outer peripheral face and the inner peripheral surface of locking sleeve 32 be set to the inclined-plane that cooperates, when the relative body of rod 31 of locking sleeve 32 is to moving down
Time dynamic, it is achieved the clamping (locking) of the 31 of clamping limb.
As it is shown in figure 5, have the first spiral shell of the body of rod 31 with described support bar 3 in the rod-like element 11 of described first body of rod 1
The connecting hole 111 that stricture of vagina section 311 matches.Similarly, the rod-like element 21 on described second body of rod 2 has and described support bar 3 bar
The connecting hole that first thread segment 311 of body 31 matches.On first body of rod 1 and second body of rod 2, the specific number of connecting hole, permissible
According to circumstances it is adjusted, as long as can match with support bar.
The preferred embodiment of the present invention described in detail above.Should be appreciated that those of ordinary skill in the art without
Need creative work just can make many modifications and variations according to the design of the present invention.Therefore, all technology in the art
Personnel are available by logical analysis, reasoning, or a limited experiment the most on the basis of existing technology
Technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (7)
1. a pedicle screw fixation system relocation device, it is characterised in that include first body of rod, second body of rod and multiple support
Bar, one end of described first body of rod and one end of described second body of rod are connected by a rotating shaft, and described support bar is arranged for
Connect described first body of rod and the pitman of pedicle screw fixation system and described second body of rod and the pitman of pedicle screw fixation system,
So that described first body of rod and described second body of rod are fixed on spine nail system by support bar.
2. pedicle screw fixation system relocation device as claimed in claim 1, it is characterised in that described first body of rod includes shaft-like
Part, branch sleeve, the first nut and the second nut, the end of described rod-like element has an external thread section, described first nut and
Described second nut is respectively provided with the female thread matched with described external thread section, and described branch sleeve is socketed on described external thread section
On, the sidewall of described branch sleeve has the connecting hole extended, described connecting hole is arranged for connecting described second
The body of rod.
3. pedicle screw fixation system relocation device as claimed in claim 1, it is characterised in that described second body of rod includes shaft-like
Part bolt vertically disposed with described rod-like element and the nut matched with described bolt.
4. pedicle screw fixation system relocation device as claimed in claim 1, it is characterised in that described support bar include the body of rod and
Locking sleeve, the described body of rod includes the first thread segment and the first nut matched with described first thread segment and the second spiral shell
The second nut that stricture of vagina section and described second thread segment match, described first thread segment is positioned at one end of the described body of rod, and described
Two thread segments are positioned at the middle part of the described body of rod, and the other end of the described body of rod has clamping limb；Described locking sleeve is socketed on described
On the body of rod, it is described that described locking sleeve includes that first end and the second end, the first end of described lock sleeve jacket casing are resisted against
Second nut, when described second nut moves to described locking sleeve direction, the second end of described locking sleeve is to described
Clamping limb applies chucking power, so that clamping limb clamping.
5. pedicle screw fixation system relocation device as claimed in claim 4, it is characterised in that the second end of described locking sleeve
The internal diameter in portion is more than the internal diameter of described first end.
6. pedicle screw fixation system relocation device as claimed in claim 4, it is characterised in that have on described first body of rod and
The connecting hole that first thread segment of the described support bar body of rod matches.
7. pedicle screw fixation system relocation device as claimed in claim 4, it is characterised in that have on described second body of rod and
The connecting hole that first thread segment of the described support bar body of rod matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610402622.6A CN106073874A (en) | 2016-06-08 | 2016-06-08 | A kind of pedicle screw fixation system relocation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610402622.6A CN106073874A (en) | 2016-06-08 | 2016-06-08 | A kind of pedicle screw fixation system relocation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106073874A true CN106073874A (en) | 2016-11-09 |
Family
ID=57227696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610402622.6A Pending CN106073874A (en) | 2016-06-08 | 2016-06-08 | A kind of pedicle screw fixation system relocation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106073874A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111920501A (en) * | 2020-08-19 | 2020-11-13 | 北京大学第三医院（北京大学第三临床医学院） | Adjustable intraoperative temporary fixing device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2598518Y (en) * | 2003-01-29 | 2004-01-14 | 邱贵兴 | Vertebral column vertebral arch pedicle internal fixing device and special instrument |
| US20080086134A1 (en) * | 2006-10-04 | 2008-04-10 | Butler Michael S | Multi-axial spinal cross-connectors |
| US20100042149A1 (en) * | 2008-08-18 | 2010-02-18 | Chao Nam T | Pelvic obliquity correction instrument |
| CN103519878A (en) * | 2013-10-29 | 2014-01-22 | 宋西正 | Minimally invasive poking orthopedic internal fixator |
| US20140058450A1 (en) * | 2012-08-22 | 2014-02-27 | Warsaw Orthopedic, Inc. | Spinal correction system and method |
| CN204260825U (en) * | 2014-11-06 | 2015-04-15 | 广州军区广州总医院 | A kind of fracture Wicresoft screw implanting device |
| CN104936541A (en) * | 2013-01-23 | 2015-09-23 | Euros公司 | Self-extending implant |
-
2016
- 2016-06-08 CN CN201610402622.6A patent/CN106073874A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2598518Y (en) * | 2003-01-29 | 2004-01-14 | 邱贵兴 | Vertebral column vertebral arch pedicle internal fixing device and special instrument |
| US20080086134A1 (en) * | 2006-10-04 | 2008-04-10 | Butler Michael S | Multi-axial spinal cross-connectors |
| US20100042149A1 (en) * | 2008-08-18 | 2010-02-18 | Chao Nam T | Pelvic obliquity correction instrument |
| US20140058450A1 (en) * | 2012-08-22 | 2014-02-27 | Warsaw Orthopedic, Inc. | Spinal correction system and method |
| CN104936541A (en) * | 2013-01-23 | 2015-09-23 | Euros公司 | Self-extending implant |
| CN103519878A (en) * | 2013-10-29 | 2014-01-22 | 宋西正 | Minimally invasive poking orthopedic internal fixator |
| CN204260825U (en) * | 2014-11-06 | 2015-04-15 | 广州军区广州总医院 | A kind of fracture Wicresoft screw implanting device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111920501A (en) * | 2020-08-19 | 2020-11-13 | 北京大学第三医院（北京大学第三临床医学院） | Adjustable intraoperative temporary fixing device |
| CN111920501B (en) * | 2020-08-19 | 2022-02-01 | 北京大学第三医院（北京大学第三临床医学院） | Adjustable intraoperative temporary fixing device |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xiao Dan Inventor before: Xiao Dan |
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| CB03 | Change of inventor or designer information | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161109 |
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| WD01 | Invention patent application deemed withdrawn after publication |