CN109846527A - Spinal surgery ligamentum flavum Knife for stripping cable - Google Patents
Spinal surgery ligamentum flavum Knife for stripping cable Download PDFInfo
- Publication number
- CN109846527A CN109846527A CN201910098444.6A CN201910098444A CN109846527A CN 109846527 A CN109846527 A CN 109846527A CN 201910098444 A CN201910098444 A CN 201910098444A CN 109846527 A CN109846527 A CN 109846527A
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- knife
- ligamentum flavum
- spinal surgery
- scraper
- cutter hub
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Abstract
The present invention relates to a kind of spinal surgery instruments, more particularly to a kind of spinal surgery ligamentum flavum Knife for stripping cable, including cutter hub, casing and motor, the cutter hub be sheathed in described sleeve pipe, and top and bottom is pierced by described sleeve pipe, the top of the motor and the bottom of cutter hub are detachably connected.The cutter hub includes scraper, knife rest and knife handle, and knife rest is installed at the top of the knife handle, and the scraper is detachably connected with the knife rest, wherein the scraper is blunt knife, and blade is dentation, and the end of the scraper is provided with sliding block.The present invention compared with the prior art for, casing is arranged with outside cutter hub, and it is connected by the end of motor and cutter hub, it realizes and drives cutter hub to plane ligamentum flavum by motor, it solves the problems, such as to be difficult to scrape since ligamentum flavum is excessively tough and tensile, while multiple scrapers can be placed, improve stability when scraping efficiency and scraping, not only convenience was brought to operative doctor, but also reduces pain suffered by patient.
Description
Technical field
The present invention relates to a kind of spinal surgery instruments more particularly to a kind of spinal surgery to be planed with ligamentum flavum
Knife.
Background technique
Ligamentum flavum is one layer of fine and close yellow connective tissue, and proximal end arises from upper vertebral plate lower part depth face, distally terminates in bottom
Vertebral plate top superficial surface.Ligamentum flavum plays a role to column stability after backbone, while protect the endorchis of lower section.Backbone
In surgical operation, during laminectomy for decompression or decompression by fenestration, ligamentum flavum between vertebral plate need to be cut off.It is tough for tough and tensile Huang
Band can be just removed it by way of near tearing, thus damages deep dura mater and endorchis often occurs
Breakage, leakage of cerebrospinal increase iatrogenic injury.The method for cutting ligamentum flavum at present is usually to use stylet straight from surface to deep
Cutting is connect, dura mater and nerve root are easy to damage, is absolutely unsafe.The scraper for scraping ligamentum flavum simultaneously is not easy to grasp, and is used alone one
Efficiency is slower when a scraper, when needing replacing the Knife for stripping cable with multiple scraper cutter heads, needs replacing entire cutter, is not easy to grasp
Make.
Summary of the invention
In view of the technical problems existing in the prior art, the present invention provides a kind of backbones being convenient for changing or increase and decrease cutter head
Surgical operation ligamentum flavum Knife for stripping cable.
To realize the above-mentioned technical purpose, The technical solution adopted by the invention is as follows: spinal surgery is planed with ligamentum flavum
Knife, including cutter hub, casing and motor, the cutter hub are sheathed in described sleeve pipe, and top and bottom is pierced by described sleeve pipe, institute
The bottom at the top and cutter hub of stating motor is detachably connected.The cutter hub includes scraper, knife rest and knife handle, the top of the knife handle
It is installed with knife rest, the scraper is detachably connected with the knife rest, wherein the scraper is blunt knife, and blade is dentation, described
The end of scraper is provided with sliding block.The knife rest includes support frame, internal screw thread, sliding slot and the upper cover being threadedly coupled with internal screw thread,
Wherein support frame as described above is that top is equipped with opening and hollow cylindrical body, the internal screw thread are set to the inner wall of support frame as described above,
At least evenly spaced on support frame as described above to offer 4 sliding slots, the scraper is slidably connected by the sliding block of end with sliding slot.
The upper cover includes upper cover ontology, handle and rubber column, and the rubber column is set to the bottom of the upper cover ontology, the handle hinge
Connect the top with the upper cover ontology.The middle part of the knife handle is equipped with the limited block of annular, and the end of the knife handle is equipped with grafting
Head.The both ends of described sleeve pipe are threaded with overhead gage and lower baffle plate respectively, wherein in the overhead gage and the lower baffle plate
Portion offers the through-hole passed through for knife handle.The output end of the motor is equipped with the interface to match with the connection-peg.
The ligamentum flavum Knife for stripping cable of spinal surgery by adopting the above technical scheme can increase and decrease or replace in sliding slot
Scraper, when the ligamentum flavum hardness in patient's vertebra is larger or more, can addition scraper appropriate, be no longer limited to using list
The cutter head of one type strikes off ligamentum flavum, while being connected to motor in the end of knife handle, drives scraper rotation by motor, mentions
Rise scraping speed.
It further limits, the distance between the overhead gage and the lower baffle plate are equal to the length of the limited block.
It further limits, the length of described sleeve pipe is 32-38cm.
It further limits, the length of the knife handle is 42-48cm.
It further limits, the upper tops are equipped with the groove to match with the handle.
It further limits, the end of the sliding block is equipped with block.
It further limiting, the radius of the rubber column is 1.25cm,
It further limits, support frame as described above center is 1 ~ 1.2cm at a distance from block.
It further limits, the height of the rubber column is equal to the height of block.
The present invention compared with the prior art for, be arranged with casing outside cutter hub, and connect by the end of motor and cutter hub
It connects, realizes and planed by motor drive cutter hub to ligamentum flavum, solve and be difficult to scrape since ligamentum flavum is excessively tough and tensile
Problem, while multiple scrapers can be placed, stability when scraping efficiency and scraping is improved, was both brought just to operative doctor
Benefit, and reduce pain suffered by patient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of spinal surgery ligamentum flavum Knife for stripping cable of the present invention；
Fig. 2 is the structural schematic diagram of cutter hub in the use of the new type spinal surgery ligamentum flavum Knife for stripping cable；
Fig. 3 is the top view of spinal surgery ligamentum flavum Knife for stripping cable of the present invention；
Fig. 4 is the structural schematic diagram of scraper in spinal surgery ligamentum flavum Knife for stripping cable of the present invention；
Fig. 5 is the top view of overhead gage in spinal surgery ligamentum flavum Knife for stripping cable of the present invention；
Fig. 6 is the structural schematic diagram of spinal surgery ligamentum flavum Knife for stripping cable intermediate slide of the present invention；
Corresponding indicate is respectively as follows: 1- cutter hub in figure, 2- casing, 3- motor, 11- scraper, 12- knife rest, 13- knife handle, keeps off on 21-
Plate, 22- lower baffle plate, 23- through-hole, 31- interface, 111- sliding block, 112- block, 121- support frame, 122- internal screw thread, 123- are sliding
Slot, 124- upper cover, 131- limited block, 132- connection-peg, 1241- upper cover ontology, 1242- handle, 1243- rubber column, 1244- are recessed
Slot.
Specific embodiment
In order to which those skilled in the art may be better understood, with reference to the accompanying drawings and examples to the technology of the present invention
Scheme further illustrates.
As shown in Figure 1, Figure 2, Fig. 3, Fig. 4, Fig. 5 and spinal surgery ligamentum flavum Knife for stripping cable shown in fig. 6 include cutter hub 1,
Casing 2 and motor 3, the cutter hub 1 are sheathed in described sleeve pipe 2, and top and bottom is pierced by described sleeve pipe 2, the motor 3
Top and the bottom of cutter hub 1 be detachably connected.The cutter hub 1 includes scraper 11, knife rest 12 and knife handle 13, the knife handle 13
Top is installed with knife rest 12, and the scraper 11 is detachably connected with the knife rest 12, wherein the scraper 11 is blunt knife, and blade
End for dentation, the scraper 11 is provided with sliding block 111.The knife rest 12 includes support frame 121, internal screw thread 122, sliding slot
123 and the upper cover 124 that is threadedly coupled with internal screw thread 122, wherein support frame as described above 121 is that top is equipped with opening and hollow cylinder
Body, the internal screw thread 122 are set to the inner wall of support frame as described above 121, at least evenly spaced on support frame as described above 121 to offer
4 sliding slots 123, the scraper 11 are slidably connected by the sliding block 111 of end with sliding slot 123.The upper cover 124 includes upper cover sheet
Body 1241, handle 1242 and rubber column 1243, the rubber column 1243 are set to the bottom of the upper cover ontology 1241, the handle
1242 hinged tops with the upper cover ontology 1241.The middle part of the knife handle 13 is equipped with the limited block 131 of annular, the knife handle
13 end is equipped with connection-peg 132.The both ends of described sleeve pipe 2 are threaded with overhead gage 21 and lower baffle plate 22 respectively, wherein institute
The middle part for stating overhead gage 21 and the lower baffle plate 22 offers the through-hole 23 passed through for knife handle.The output end of the motor 3
Equipped with the interface 31 to match with the connection-peg 132.The distance between the overhead gage 21 and the lower baffle plate 22 are equal to
The length of the limited block 131.The length of described sleeve pipe 2 is 32-38cm.The length of the knife handle 13 is 42-48cm.On described
The groove 1244 to match with the handle 1242 is equipped at the top of lid 124.The end of the sliding block 111 is equipped with block 112.It is described
The radius of rubber column 1243 is 1.25cm.121 center of support frame as described above is 1 ~ 1.2cm at a distance from block 112.The rubber column
1243 height is equal to the height of block 112.
The present invention slides into sliding slot 123 before use, the scraper 11 of ligamentum flavum will be used to scrape from the top of sliding slot 123,
Scraper 11 at least places one, increases the quantity of scraper 11 according to the concrete condition of patient, is then pressed into upper cover 124 and supports
In frame 121, and upper cover 124 is threadedly coupled with support frame 121 by internal screw thread 122, since the bottom of upper cover 124 is equipped with rubber
Column 1243, and the radius of rubber column 1243 is greater than the spacing between support frame 121 and block 112, therefore rubber column 1243 is propping up
Scraper 11 is squeezed in the cavity of support 121, it is possible to prevente effectively from the sliding in 11 horizontal direction of scraper, while rubber column 1243
Height it is identical as the height of block 112, can avoid in the vertical direction scraper 11 slide or scraper 11 tilt, influence to perform the operation
As a result.Scraper 11 after the installation is completed, knife handle 13 is inserted in from top to bottom in sliding sleeve 2, and respectively the upper and lower ends of sliding sleeve 2 twist
Tight overhead gage 21 and lower baffle plate 22, the through-hole 23 that the upper and lower ends of cutter hub 1 open up among overhead gage 21 and lower baffle plate 22 respectively
In pass through, and the end of knife handle 13 and 3 grafting of motor, scraper 11 is probeed into it is intraspinal after, scraped by the hand-held check and correction of casing 2
The position of knife 11, subsequent start-up motor 3 drive scraper 11 in the intraspinal scraping ligamentum flavum of patient by motor 3.
Spinal surgery provided by the invention is described in detail with ligamentum flavum Knife for stripping cable above, specific embodiment
Explanation be merely used to help understand method and its core concept of the invention.It should be pointed out that for the common of the art
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for technical staff, these
Improvement and modification are also fallen within the protection scope of the claims of the present invention.
Claims (9)
1. spinal surgery ligamentum flavum Knife for stripping cable, it is characterised in that: including cutter hub, casing and motor, the cutter hub is arranged
In in described sleeve pipe, and top and bottom is pierced by described sleeve pipe, and the top of the motor and the bottom of cutter hub are detachably connected；
The cutter hub includes scraper, knife rest and knife handle, and knife rest is installed at the top of the knife handle, and the scraper and the knife rest are detachable
Connection, wherein the scraper is blunt knife, and blade is dentation, and the end of the scraper is provided with sliding block；The knife rest includes branch
Support, internal screw thread, sliding slot and the upper cover being threadedly coupled with internal screw thread, wherein support frame as described above be top be equipped with opening and it is hollow
Cylindrical body, the internal screw thread are set to the inner wall of support frame as described above, at least evenly spaced on support frame as described above to offer 4 cunnings
Slot, the scraper are slidably connected by the sliding block of end with sliding slot；The upper cover includes upper cover ontology, handle and rubber column, institute
State the bottom that rubber column is set to the upper cover ontology, the hinged top with the upper cover ontology of the handle, in the knife handle
Portion is equipped with the limited block of annular, and the end of the knife handle is equipped with connection-peg, and the both ends of described sleeve pipe are threaded with gear respectively
Plate and lower baffle plate, wherein the middle part of the overhead gage and the lower baffle plate offers the through-hole passed through for knife handle, the electricity
The output end of machine is equipped with the interface to match with the connection-peg.
2. spinal surgery as described in claim 1 ligamentum flavum Knife for stripping cable, it is characterised in that: the overhead gage with it is described
The distance between lower baffle plate is equal to the length of the limited block.
3. spinal surgery as described in claim 1 ligamentum flavum Knife for stripping cable, which is characterized in that the length of described sleeve pipe is
32-38cm。
4. spinal surgery as described in claim 1 ligamentum flavum Knife for stripping cable, it is characterised in that: the length of the knife handle is
42-48cm。
5. spinal surgery as described in claim 1 ligamentum flavum Knife for stripping cable, it is characterised in that: the upper tops are equipped with
The groove to match with the handle.
6. spinal surgery as described in claim 1 ligamentum flavum Knife for stripping cable, it is characterised in that: the end of the sliding block is set
There is block.
7. spinal surgery as described in claim 1 ligamentum flavum Knife for stripping cable, it is characterised in that: the radius of the rubber column
For 1.25cm.
8. spinal surgery as claimed in claim 6 ligamentum flavum Knife for stripping cable, it is characterised in that: support frame as described above center with
The distance of block is 1 ~ 1.2cm.
9. spinal surgery as claimed in claim 6 ligamentum flavum Knife for stripping cable, it is characterised in that: the height of the rubber column
Equal to the height of block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910098444.6A CN109846527B (en) | 2019-01-31 | 2019-01-31 | Ligamentum flavum planing knife for spinal surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910098444.6A CN109846527B (en) | 2019-01-31 | 2019-01-31 | Ligamentum flavum planing knife for spinal surgery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109846527A true CN109846527A (en) | 2019-06-07 |
| CN109846527B CN109846527B (en) | 2022-05-06 |
Family
ID=66897124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910098444.6A Active CN109846527B (en) | 2019-01-31 | 2019-01-31 | Ligamentum flavum planing knife for spinal surgery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111616776A (en) * | 2020-06-08 | 2020-09-04 | 聊城市人民医院 | Ligamentum flavum planing knife for spinal surgery |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9186159B2 (en) * | 2009-02-23 | 2015-11-17 | Globus Medical, Inc. | Discectomy instrument |
| US20170202560A1 (en) * | 2012-02-16 | 2017-07-20 | Göran Björn | Mastoid bone start drill bit |
| CN203122517U (en) * | 2013-02-28 | 2013-08-14 | 张伟 | Multifunctional motor-driven bone file |
| CN204318843U (en) * | 2014-12-15 | 2015-05-13 | 孙中建 | A kind of xyster |
| CN204931735U (en) * | 2015-07-22 | 2016-01-06 | 沈玉杰 | The supporting operation external member of a kind of novel foramen intervertebrale lens |
| CN204909562U (en) * | 2015-08-24 | 2015-12-30 | 刘显翠 | Combination formula curet for bone surgery |
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| CN208065237U (en) * | 2017-06-08 | 2018-11-09 | 钟志锋 | A kind of No. 34 ceramic scalpels |
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| CN111616776A (en) * | 2020-06-08 | 2020-09-04 | 聊城市人民医院 | Ligamentum flavum planing knife for spinal surgery |
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| Publication number | Publication date |
|---|---|
| CN109846527B (en) | 2022-05-06 |
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