CN109528254A - A kind of laminectomy retractor - Google Patents
A kind of laminectomy retractor Download PDFInfo
- Publication number
- CN109528254A CN109528254A CN201811245767.5A CN201811245767A CN109528254A CN 109528254 A CN109528254 A CN 109528254A CN 201811245767 A CN201811245767 A CN 201811245767A CN 109528254 A CN109528254 A CN 109528254A
- Authority
- CN
- China
- Prior art keywords
- vertical arm
- obliquitous
- rod
- arm
- abutment sleeve
- 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.)
- Withdrawn
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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
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
-
- 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/90—Guides therefor
Abstract
The present invention relates to a kind of laminectomy retractors, including transverse arm (1a) and vertical arm (1b), the one end transverse arm (1a) connects the handle (2) of outside bending, and the vertical arm end (1b) connects the latch (3) of a pair of bending outward, and midpoint is located on vertical arm (1b) middle line between two latches (3)；Connect an abutment sleeve fixed block (4) in vertical arm (1b), which is provided with a through-hole (5), through-hole (5) face and is parallel to vertical arm (1b) middle line；One group of protractor (6) is set on abutment sleeve fixed block (4), including orthogonal head obliquitous rod (6a) and tail obliquitous rod (6b), head obliquitous rod (6a) is connected in abutment sleeve fixed block (4) surface, face and it is parallel to vertical arm (1b) middle line, tail obliquitous rod (6b) is connected on an obliquitous rod (6a) and in tee T；Angle is set as 20 ° ~ 25 ° between latch (3) and vertical arm (1b) extended line.It is an advantage of the invention that promoting procedure efficiency, improve into nail accuracy safety.
Description
Technical field
The present invention relates to the field of medical instrument technology more particularly to a kind of laminectomy retractors.
Background technique
Laminectomy retractor is widely used in the fixed operation of Thoracolumbar disk, is often used in the merging of auxiliary pedicle screw.It is logical
In normal situation, pedicle screw operating difficulty is big, more complex, entry point slightly make mistakes will be brought to patient it is serious it is bad after
Fruit, therefore, find accurate entry point position, guarantee it is good into nail direction be that pedicle screw implantation surgery successfully closes
Key.The pedicle screw merging method generally used is cross into nail method, i.e., in processus articular superior outer rim vertical line and transverse process midtread
The point of intersection of line is into nail.
Currently, common laminectomy retractor is monodentate structure, vertebral plate main body is L-shaped, is made of transverse arm and vertical arm, and transverse arm
One end is connected with a handle, and the end of vertical arm is equipped with operation briar tooth.Hand is put on airs hand when operation, operation briar tooth is utilized to retract perpendicular ridge
Flesh exposes transverse process position, then abutment sleeve is placed on to the position of merging pedicle screw, the related behaviour being finally placed in
Make.Wherein, abutment sleeve used in operation, i.e., a kind of tubular structure device of the hollow cylinder of additional screws merging pedicle of vertebral arch
Tool.But the clinical experience of patient is relied primarily on using the merging accuracy that this laminectomy retractor carries out pedicle screw, for
For some insufficient patients of experience, then be easy to cause entry point and into nail direction deviation, cause it is bad set nail, thus to trouble
Person brings serious sequelae.
Summary of the invention
The object of the invention is to set that nail accuracy and safety are low, inefficient ask to solve existing laminectomy retractor
Topic, provides a kind of laminectomy retractor, can not only promote the efficiency of operation, but also is conducive to patient and finds accurately into nail position, improve into
The accuracy and safety of nail avoid bringing undesirable consequence to patient.
To achieve the goals above, present invention employs following technical solutions:
A kind of laminectomy retractor, including L-shaped drag hook main body, main body includes connected transverse arm and vertical arm, one end connection of transverse arm
The handle of one outside bending, it is characterised in that:
The end of vertical arm connects the latch of a pair of bending outward, and the midpoint between two latches is placed exactly on the middle line of vertical arm,
To ensure that entry point when performing the operation is located on transverse process middle line.
An abutment sleeve fixed block is connected in vertical arm above latch, abutment sleeve fixed block is equipped with one and operation
The vertical through-hole of middle abutment sleeve cooperation, through-hole face on vertical arm middle line and parallel with vertical arm, hole size and positioning sleeve
Cylinder size is adapted.
The inner surface of vertical arm is set there are two vertical groove, and abutment sleeve fixed block is equipped with a pair of recessed with vertical arm inside
The corresponding sliding block of slot, sliding block and groove form slide-and-guide cooperation.
One group of protractor, including a head obliquitous rod and a tail obliquitous rod, the two are additionally provided on abutment sleeve fixed block
It is mutually perpendicular to；
Head obliquitous rod is connected to abutment sleeve fixed block surface, and faces vertical arm middle line and, tail obliquitous rod company parallel with middle line
It connects on head obliquitous rod, is in " fourth " set up of character patt ern, to determine into nail direction.
Angle between the latch and vertical arm extended line is set as 20 ° ~ 25 °.
The transverse arm and vertical arm are plate body.
In technical solution of the present invention, laminectomy retractor is made of metal material, by will be stuck in waist between two latches
On vertebra transverse process, adjustment direction makes two latch center point alignment transverse process midline positions；Abutment sleeve insertion abutment sleeve is fixed again
In through-hole on block, so that bushing core transverse projection is in transverse process midtread line position, longitudinal projection is in processus articular superior outer rim
Vertical line position just makes entry point be located at the intersection position of processus articular superior outer rim vertical line Yu transverse process midtread line；It determines
After entry point, adjustment head inclines and tail degree of tilt, determines into nail direction, then by the merging of sleeve progress pilot pin, drill, set
Nail.The present apparatus can not only promote the efficiency of operation, but also be conducive to patient and find accurately into nail position and into nail direction, improve into nail
Accuracy and safety avoid bad set from following closely bring serious consequence.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of laminectomy retractor of the invention；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is the right view of Fig. 1；
Fig. 4 is the A-A cross-sectional view of Fig. 1；
Fig. 5 is the bottom view of Fig. 1.
Specific embodiment
In order to which the present invention is more clearly understood, with reference to the accompanying drawing furtherly to a kind of laminectomy retractor of the invention
Bright, the specific embodiments described herein are merely illustrative of the present invention, is not intended to limit the present invention.
As shown in Figure 1, a kind of laminectomy retractor, including L-shaped drag hook main body 1, main body 1 includes connected transverse arm 1a and erects
One end of arm 1b, transverse arm 1a connect the handle 2 of an outside bending, it is characterised in that:
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 5, the latch 3 of a pair of bending outward of the end connection of vertical arm 1b, between two latches 3
Midpoint is placed exactly on the middle line of vertical arm 1b, to ensure that entry point when performing the operation is located on transverse process middle line.
Referring to Fig. 1, Fig. 2, Fig. 4 and Fig. 5, an abutment sleeve fixed block 4, positioning are connected on the vertical arm 1b of 3 top of latch
Sleeve fixed block 4 is equipped with the through-hole 5 cooperated with abutment sleeve when operation, through-hole 5 face on vertical arm 1b middle line and with
Middle line is parallel, to guarantee that abutment sleeve can pass through through-hole 5.
Referring to Fig. 3, Fig. 4 and Fig. 5, the inner surface of vertical arm 1b is set there are two vertical groove 1c, abutment sleeve fixed block 4
It is equipped with a pair of sliding block 4a, sliding block 4a and groove 1c corresponding with vertical arm 1b inboard groove 1c and forms slide-and-guide cooperation.
Referring to Fig. 1, Fig. 2, Fig. 4 and Fig. 5, one group of protractor 6 is additionally provided on abutment sleeve fixed block 4, including a head inclines
Angular pole 6a and a tail obliquitous rod 6b, the two are mutually perpendicular to；
Head obliquitous rod 6a is connected to 4 surface of abutment sleeve fixed block, and faces vertical arm 1b middle line, and, tail parallel with middle line
Obliquitous rod 6b is connected on an obliquitous rod 6a, and is in " fourth " set up of character patt ern, to determine into nail direction.
Referring to Fig. 1, the angle between the latch 3 and vertical arm 1b extended line is set as 20 ° ~ 25 °.
The transverse arm 1a and vertical arm 1b is plate body, is made of metal material.
In use, will directly be stuck on transverse process of lumbar vertebra between two latches 3, adjustment direction makes two latches, 3 center point alignment
Transverse process midline position；Screw abutment sleeve is inserted into the through-hole 5 on abutment sleeve fixed block 4 again, so that bushing core is lateral
It is projected in transverse process midtread line position, longitudinal projection is located at just entry point upper in processus articular superior outer rim vertical line position
The intersection position of articular process outer rim vertical line and transverse process midtread line；After determining entry point, adjusts head obliquitous rod 6a and tail inclines
Angular pole 6b determines into nail direction, then by the merging of sleeve progress pilot pin, drill, set nail.The present apparatus can not only be promoted
The efficiency of operation, and be conducive to patient and find accurately into nail position and into nail direction, the accuracy and safety into nail are improved, is avoided not
It is good to set nail bring serious consequence.
Claims (2)
1. a kind of laminectomy retractor, including L-shaped drag hook main body (1), main body (1) includes connected transverse arm (1a) and vertical arm
(1b), one end of transverse arm (1a) connect the handle (2) of an outside bending, it is characterised in that:
The end of vertical arm (1b) connects the latch (3) of a pair of bending outward, and the midpoint between two latches (3) is placed exactly in vertical arm
On the middle line of (1b)；
An abutment sleeve fixed block (4) is connected in vertical arm (1b) above latch (3), abutment sleeve fixed block (4) is equipped with
One faces vertical arm (1b) middle line and parallel with middle line with the through-hole (5) of abutment sleeve cooperation in operation, through-hole (5)；
The transverse arm (1a) and vertical arm (1b) are plate body；
One group of protractor (6), including a head obliquitous rod (6a) and a tail obliquitous rod are additionally provided on abutment sleeve fixed block (4)
(6b), the two is mutually perpendicular to, and head obliquitous rod (6a) is connected to the surface of abutment sleeve fixed block (4), and is faced and in parallel
In vertical arm (1b) middle line, tail obliquitous rod (6b) is connected on an obliquitous rod (6a) and in " fourth " set up of character patt ern；
Angle between the latch (3) and vertical arm (1b) extended line is set as 20 ° ~ 25 °.
2. a kind of laminectomy retractor according to claim 1, it is characterised in that:
The inner surface of vertical arm (1b) is set there are two vertical groove (1c), abutment sleeve fixed block (4) be equipped with it is a pair of with it is perpendicular
The corresponding sliding block (4a) of arm (1b) inboard groove (1c), sliding block (4a) and groove (1c) form slide-and-guide cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811245767.5A CN109528254A (en) | 2018-10-24 | 2018-10-24 | A kind of laminectomy retractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811245767.5A CN109528254A (en) | 2018-10-24 | 2018-10-24 | A kind of laminectomy retractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109528254A true CN109528254A (en) | 2019-03-29 |
Family
ID=65845192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811245767.5A Withdrawn CN109528254A (en) | 2018-10-24 | 2018-10-24 | A kind of laminectomy retractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109528254A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130046352A1 (en) * | 2011-08-15 | 2013-02-21 | K2M, Inc. | Laminar hook insertion device |
| CN204306851U (en) * | 2014-05-09 | 2015-05-06 | 李伟 | A kind of dichotomous transverse process drag hook |
| CN205072980U (en) * | 2015-10-15 | 2016-03-09 | 胡金玺 | Lumbar vertebrae intervertebral foramen mirror and chest lumbar vertebrae percutaneous pedicle of vertebral arch screw puncture clamping orient ware |
| CN105935313A (en) * | 2016-05-04 | 2016-09-14 | 同济大学 | Simple pedicle screw placement navigator |
| CN105982707A (en) * | 2016-05-20 | 2016-10-05 | 上海三友医疗器械股份有限公司 | Wire retractor assembly for lumber interbody fusion and using method thereof |
| CN205729529U (en) * | 2016-04-22 | 2016-11-30 | 中国人民解放军第四军医大学 | A kind of intervertebral foramina percutaneous approach laser navigation device |
| CN206630663U (en) * | 2016-11-03 | 2017-11-14 | 程自申 | A kind of simple medical pedicle screw positioning and implantation servicing unit |
| CN107518936A (en) * | 2017-08-23 | 2017-12-29 | 上海交通大学医学院附属第九人民医院 | Full vertebral arch pedicle of vertebral column abutment sleeve |
| CN207492780U (en) * | 2017-04-11 | 2018-06-15 | 上海市浦东医院 | The multi-functional S-shaped drag hook of pelvis |
-
2018
- 2018-10-24 CN CN201811245767.5A patent/CN109528254A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130046352A1 (en) * | 2011-08-15 | 2013-02-21 | K2M, Inc. | Laminar hook insertion device |
| CN204306851U (en) * | 2014-05-09 | 2015-05-06 | 李伟 | A kind of dichotomous transverse process drag hook |
| CN205072980U (en) * | 2015-10-15 | 2016-03-09 | 胡金玺 | Lumbar vertebrae intervertebral foramen mirror and chest lumbar vertebrae percutaneous pedicle of vertebral arch screw puncture clamping orient ware |
| CN205729529U (en) * | 2016-04-22 | 2016-11-30 | 中国人民解放军第四军医大学 | A kind of intervertebral foramina percutaneous approach laser navigation device |
| CN105935313A (en) * | 2016-05-04 | 2016-09-14 | 同济大学 | Simple pedicle screw placement navigator |
| CN105982707A (en) * | 2016-05-20 | 2016-10-05 | 上海三友医疗器械股份有限公司 | Wire retractor assembly for lumber interbody fusion and using method thereof |
| CN206630663U (en) * | 2016-11-03 | 2017-11-14 | 程自申 | A kind of simple medical pedicle screw positioning and implantation servicing unit |
| CN207492780U (en) * | 2017-04-11 | 2018-06-15 | 上海市浦东医院 | The multi-functional S-shaped drag hook of pelvis |
| CN107518936A (en) * | 2017-08-23 | 2017-12-29 | 上海交通大学医学院附属第九人民医院 | Full vertebral arch pedicle of vertebral column abutment sleeve |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190329 |