CN107837102A - A kind of dilator - Google Patents
A kind of dilator Download PDFInfo
- Publication number
- CN107837102A CN107837102A CN201610832642.7A CN201610832642A CN107837102A CN 107837102 A CN107837102 A CN 107837102A CN 201610832642 A CN201610832642 A CN 201610832642A CN 107837102 A CN107837102 A CN 107837102A
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- Prior art keywords
- blade
- passage
- dilator
- along
- med
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- 230000009471 action Effects 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 210000002421 cell wall Anatomy 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 210000001519 tissue Anatomy 0.000 description 14
- 238000005516 engineering process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 210000005036 nerve Anatomy 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 208000003618 Intervertebral Disc Displacement Diseases 0.000 description 1
- 206010050296 Intervertebral disc protrusion Diseases 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000002308 calcification Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 210000004262 dental pulp cavity Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 210000003041 ligament Anatomy 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 230000001537 neural effect Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
- 208000037804 stenosis Diseases 0.000 description 1
- 208000011580 syndromic disease Diseases 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, 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
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0218—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for minimally invasive surgery
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00238—Type of minimally invasive operation
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Prostheses (AREA)
Abstract
The present invention provides a kind of dilator, including：Fixed part, it has the passage for being used for passing through for the lens barrel of the MED；Multiple blades, one end of the blade form connection end respectively, and the connection end of each blade is articulated on the inwall of the passage respectively along the circumference of the passage, so that the operating portion formed by multiple blades can open or collapse；And regulation and control portion, it is connected with the fixed part, and the regulation and control portion, which is acted on the operating portion, to be used to drive the operating portion to do to open or gathering action, and each blade in the operating portion is spacing on the angle position.The dilator of the present invention can be used cooperatively with MED, and can avoid larger expansion epidermal tissue.
Description
Technical field
The present invention relates to a kind of dilator, more particularly to a kind of dilator that can be used cooperatively with MED.
Background technology
MED technology (MED) has the difference of essence with conventional percutaneous MED technology, and it is to open traditional
Put disc removal technology organically to be combined with endoscopic technic, be minimally invasiveization and scope of traditional lumbar intervertebral disc operation, can incite somebody to action
Operating field is clearly displayed on monitor, then coordinates special operating theater instruments, and otch is small, peels off that the scope of organization is small, and bleeding is few,
Normal structure destruction is smaller, can look at the compression situation of dural sac and nerve root straight, and is operated under direct-view, and nerve root decompression is thorough
Bottom, the generation of the complication such as neural blood vessel damage can be reduced while satisfied and reliable curative effect is obtained, utilizes the MED
The operations such as lumbar nucleus pulposus is extractd and nerve root passage is cleared up can be completed, therefore are applied to most types of lumber ertebral disc
Herniation.
The Operation indication of MED technology is similar to conventional spinal disc operation, but scope wants narrower.Interverbebral disc
The optimal adaptation disease of mirror technology：
(1) protrasion of the lumbar intervertebral disci based on root pain；
(2) Far lateral lumbar disc herniation；
(3) postoperative former section Contralateral recurrence person；
(4) single segmental lateral recess syndrome and (or) Nerve root canal stenosis.
MED advantage is minimally invasive, and anatomical structure can be seen in art, can cut off vertebral plate, articular process, spur, calcification
The disc tissue of ligament, protrusion.MED usually requires to be used in conjunction with dilator during operation, but of the prior art struts
Device is because structure limits, and it is difficult to be adapted with MED, adds the operation difficulty of user, in addition, in the prior art
Dilator using when can not only strut interior tissue, augmenting tissue inner space, while can also expand the wound in epidermal tissue
Mouthful, it is impossible to reach the standard of Minimally Invasive Surgery.
The content of the invention
Problem to be solved by this invention is to provide one kind and can be used cooperatively with MED, and can avoid larger
Expand the dilator of epidermal tissue.
In order to solve the above problems, the present invention provides a kind of dilator, for being connected with MED, the dilator bag
Include：
Fixed part, it has the passage for being used for passing through for the lens barrel of the MED；
Multiple blades, one end of the blade form connection end respectively, and the connection end of each blade leads to along described
The circumference in road is articulated on the inwall of the passage respectively, so that the operating portion formed by multiple blades can open or receive
Hold together；And
Regulation and control portion, it is connected with the fixed part, and the regulation and control portion, which is acted on the operating portion, to be used to drive the behaviour
Do and open or gathering action as portion, it is and each blade in the operating portion is spacing on the angle position.
Preferably, the passage is divided axially into Part I and Part II in cylinder, the passage along it；
The blade is the stripe board that plate face is cambered surface, and multiple blades are divided into two groups, and blade described in first group is along institute
The inwall for stating Part I is uniformly arranged, inwall of the blade along the Part II described in second group be uniformly arranged and with first group
The leaf position staggers.
Preferably, the blade is four, and two groups are divided into, the line of two in each group blade is vertical
The axis of the passage；
One end that four blades are stretched out outside the passage is flush.
Preferably, offered on the inwall of the passage with the one-to-one mounting groove in the connection end of the blade, respectively
The connection end of the blade is articulated in the corresponding mounting groove respectively, and each mounting groove is with the fixed part towards institute
The side for stating blade end is connected to increase the expansive space of each blade.
Preferably, the connection end of the blade has the projection in the mounting groove, the middle part edge of the projection
Be provided with parallel to the direction of the passage axis and be used to the projection being divided into two-part open slot, the two parts respectively with institute
The cell wall for stating mounting groove is articulated.
Preferably, offered on the fixed part and each one-to-one through hole of mounting groove, the regulation and control portion bag
Include and be arranged in the through hole and be connected with the connection end of the blade and can be moved along the direction of the vertical passage axis
To drive the actuator that the blade opens or collapsed.
Preferably, the actuator is regulating bolt, the through hole is screwed hole.
Preferably, the MED includes the body with the lens barrel and the connecting seat being connected with the body,
The body is spacing on the fixed part by the connecting seat.
Preferably, the connecting seat includes the fixed plate being connected with the body and is arranged in the fixed plate to be used for
Coordinate the sleeve in the passage for inserting the fixed part, the lens barrel is arranged in the passage by the sleeve, described solid
Fixed board at least one end stretches out to form handle along its plate face.
Preferably, direction of the body along the vertical fixed plate plate face is provided with elongated hole, the fixed plate is correspondingly set
There is the screwed hole being connected with the elongated hole, be equipped with the elongated hole and screwed hole for propping up the body and can adjust
The screw rod of the relatively described dilator height of the MED, revolved along the screw rod centered on the lens barrel on the fixed part
Track when turning around, which is uniformly provided with, multiple to be used to corresponding with the screw rod fasten with the limited impression of the spacing screw rod.
The beneficial effect of the dilator of the present invention is that it is possible to only strut interior tissue without changing cutting in epidermal tissue
Mouthful, reduce wound area, while can be used cooperatively with the MED with 90 ° of eyepieces, MED is aided in, makes its visual field
It is adjustable.
Brief description of the drawings
Fig. 1 is the structural representation of the dilator of the present invention.
Fig. 2 is the lateral partial structurtes sectional view of the dilator of the present invention.
Fig. 3 is the three-dimensional structure diagram of the blade in the dilator of the present invention.
Fig. 4 is the front view of the blade in the dilator of the present invention.
Reference：
1- fixed parts；2- blades；3- mounting grooves；4- projections；5- open slots；6- regulating bolts；7- Part I；8- mirrors
Cylinder；9- bodies；10- fixed plates；11- sleeves；12- screw rods；13- limited impressions；14- Part II.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be described in detail.
As shown in figure 1, the present invention provides a kind of dilator, it can be connected and coordinate with the MED with 90 ° of eyepieces
Use, the dilator includes：
Fixed part 1, it has the passage for being used for passing through for the lens barrel 8 of MED；
Multiple blades 2, one end of multiple homonymies of blade 2 form connection end respectively, the week of the connection end of each blade 2 along passage
To being articulated in respectively on the inwall of passage, so that the operating portion that multiple blades 2 are formed can open or collapse；And
Regulation and control portion, it is connected with fixed part 1, regulation and control portion be used for according to being actually needed the angle that struts inside of human body tissue and
Driving operating portion, which is done, to be opened or gathering action, that is, is driven each blade 2 to do and opened or gathering action, while can be by blade 2
It is spacing on the angle position, enable that dilator stablizes by inside of human body tissue expander to required degree.
As shown in figures 1 and 3, the passage in the present embodiment is in cylinder, and the passage is divided axially into Part I 7 along it
With Part II 14；
Blade 2 is the stripe board that plate face is cambered surface, and multiple blades 2 are divided into blade 2 in two groups, first group along Part I
7 inwall is uniformly arranged, inwall of the blade 2 along Part II 14 in second group be uniformly arranged and with the blade 2 in first group
Stagger position.Such as the part between the blade 2 in corresponding two adjacent first group of Part II 14 of passage sets one the
Blade 2 in two groups etc..The present embodiment includes four blades 2, and is uniformly divided into two groups, the company of two in every group blade 2
Line is each perpendicular to the axis of passage, and one end that four blades 2 are stretched out outside passage is flush.The length of namely two groups blades 2
Degree, the set-up mode can be easy to medical worker's control to strut position.
Specifically, it is installation blade 2 in the present embodiment, in being offered on the inwall of passage with the connection end of blade 2 one by one
Corresponding mounting groove 3, then the connection end of each blade 2 is articulated in corresponding mounting groove 3 respectively, so as to complete each blade 2
Installation.Wherein, each mounting groove 3 is connected to increase the expansion of each blade 2 with fixed part 1 towards the side of the end of blade 2
Space.Because the madial wall of passage is cambered surface, for the rotation that ensures the degree of firmly installing of blade 2 and can stablize, the leaf
The connection end of piece 2 is also formed with the projection 4 in mounting groove 3, and the middle part of the projection 4 is set along the direction parallel to passage axis
Have open slot 5, the open slot 5 is used to projection 4 being divided into two parts, then by by the two parts respectively with mounting groove 3
Cell wall is articulated, and realizes the overall installation of blade 2.
With reference to shown in Fig. 3 and Fig. 4, offered on fixed part 1 with each 3 one-to-one through hole of mounting groove, regulation and control portion includes
The actuator being arranged in through hole.The actuator be connected with the connection end of the blade 2 in the mounting groove 3, and can be along vertical
The direction movement of straight channel axis is to drive the blade 2 to rotate.Actuator in the present embodiment is regulating bolt 6, and what is opened up is logical
Hole is screwed hole, and the screwed hole is positioned close at the upper end of blade 2.During concrete operations, turn regulating bolt 6 makes it to close
The direction movement of blade 2, when regulating bolt 6 contacts towards one end of blade 2 simultaneously pushing tow blade 2 with blade 2, blade 2 it is upper
Portion is moved to close to the direction of passage axis, and the bottom of blade 2 is then moved backward, and effect is strutted to reach.When each blade 2
When upper end leans with corresponding cell wall, the amount of movement of each lower end of blade 2 is maximum, i.e. now the distraction angle of dilator is most
Greatly.During reverse turn regulating bolt 6, because the jacking force that the top of blade 2 is subject to reduces, therefore to the direction away from passage axis
It is mobile, and the bottom with movable vane piece 2 is moved to close to the direction of passage axis, the lower end of each blade 2 is accordingly collapsed, subtracted with reaching
The effect of small distraction angle.Further, since the dilator in the present embodiment, its blade 2 is separate, therefore is being needed
When one direction expands tissue, it can be realized by blade corresponding to pushing tow 2.And because each blade 2 in the present embodiment is
The swing of portion 1 can be relatively fixed, therefore each blade 2 only bottom has larger amount of movement when doing dilation procedure, realizes tissue
Internal expansion, and not acting in epidermal tissue, so may be such that epidermal tissue's damaged area is small, i.e., the wound of sufferer compared with
It is small, realize really minimally invasive effect, and the pain of sufferer can be mitigated.For example, the bore of MED working holes of the prior art
It only 17mm, can not expand, and then 34mm can will be extended to inside operation position using the dilator in the present embodiment, allow to show
Reveal two sections of vertebral plates, and the working hole of epidermis is constant, is still only 17mm.
Continuing with shown in Fig. 1 and Fig. 2, MED includes the body 9 with lens barrel 8 and the connection being connected with body 9
Seat, body 9 are spacing on fixed part 1 by connecting seat.The connecting seat specifically includes the fixed plate 10 being connected with body 9 and worn
By sleeve 11 and lead in being used to coordinate the sleeve 11 in the passage of insertion fixed part 1, that is, MED in fixed plate 10
The cooperation grafting in hole is spacing on dilator.It is bolted between body 9 and connecting seat in the present embodiment.Lens barrel 8 passes through
Sleeve is arranged in the passage of fixed part 1.At least one end of fixed plate 10 stretches out to form handle along its plate face, in order to medical matters
The operation of personnel.
Further, the end of the lens barrel 8 of the MED in the present embodiment is tapered end, in order to adjust MED
Visual angle, it can be realized by rotating MED or lifting the method for MED, to reach the regulation purpose, body 9 is along hanging down
The direction of the straight plate face of fixed plate 10 is provided with elongated hole, and fixed plate 10 is correspondingly provided with the screwed hole being connected with elongated hole, the elongated hole and spiral shell
It is equipped with pit for propping up body 9 and screw rod 12 of the MED with respect to dilator height can be adjusted, and in order to preferable
Limit screw 12, stable support force can be provided for MED, in being with lens barrel 8 along screw rod 12 on fixed part 1
Track of heart rotation when turning around be uniformly provided with it is multiple be used for and screw rod 12 it is corresponding fasten and then Limit screw 12 it is spacing recessed
Groove 13.The setting of the plurality of limited impression 13 can divide according to even angle, be treated with facilitating medical worker intuitively to obtain in tissue
Orientation at expansion, also according to above-mentioned track scale can be set to reach the effect above on fixed part 1 certainly.
When specifically used, when being such as intended to reduce or expand the visual field of MED, medical worker can rotate intervertebral as needed
Disk mirror makes it go to required angle position, adjusting screw rod 12, its lower end is stretched into corresponding limited impression 13 with Limit screw
12, ensure that MED is stably fixed on the angle position.In addition, also it can reduce by rotary screw 12 or extend it
The length of sleeve 11 is stretched out in bottom, i.e. the distance between regulation MED and fixed part 1 is realized (to make in the prior art
During with MED, its more and support means, such as support frame etc. are connected, and such support means can be easy to the spacing intervertebral of user
Disk mirror, therefore screw rod 12 can prop up body 9 and connecting seat under the booster action of such support means.).
Above example is only the exemplary embodiment of the present invention, is not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can make respectively in the essence and protection domain of the present invention to the present invention
Kind modification or equivalent substitution, this modification or equivalent substitution also should be regarded as being within the scope of the present invention.
Claims (10)
1. a kind of dilator, for being connected with MED, it is characterised in that the dilator includes：
Fixed part, it has the passage for being used for passing through for the lens barrel of the MED；
Multiple blades, one end of the blade form connection end respectively, and the connection end of each blade is along the passage
It is circumferential to be articulated in respectively on the inwall of the passage, so that the operating portion formed by multiple blades can open or collapse；
And
Regulation and control portion, it is connected with the fixed part, and the regulation and control portion, which is acted on the operating portion, to be used to drive the operating portion
Do and open or gathering action, it is and each blade in the operating portion is spacing on the angle position.
2. dilator according to claim 1, it is characterised in that
The passage is divided axially into Part I and Part II in cylinder, the passage along it；
The blade is the stripe board that plate face is cambered surface, and multiple blades are divided into two groups, and blade described in first group is along described
A part inwall be uniformly arranged, inwall of the blade along the Part II described in second group be uniformly arranged and with described in first group
Leaf position staggers.
3. dilator according to claim 2, it is characterised in that
The blade is four, and is divided into two groups, the axle of the vertical passage of the line of two in each group blade
Line；
One end that four blades are stretched out outside the passage is flush.
4. dilator according to claim 3, it is characterised in that offered on the inwall of the passage and the blade
The one-to-one mounting groove in connection end, the connection end of each blade is articulated in the corresponding mounting groove respectively, each described
Mounting groove is connected with the side of the fixed part towards the blade end to increase the expansive space of each blade.
5. dilator according to claim 4, it is characterised in that the connection end of the blade, which has, is located at the mounting groove
Interior projection, the middle part of the projection is provided with along the direction parallel to the passage axis to be used to the projection being divided into two parts
Open slot, cell wall of the two parts respectively with the mounting groove be articulated.
6. dilator according to claim 4, it is characterised in that offered on the fixed part and each mounting groove one
Through hole corresponding to one, the regulation and control portion include being arranged in the through hole and be connected with the connection end of the blade and can be along vertical
The direction movement of the straight passage axis is to drive the actuator that the blade opens or collapsed.
7. dilator according to claim 6, it is characterised in that the actuator is regulating bolt, and the through hole is spiral shell
Pit.
8. dilator according to claim 7, it is characterised in that the MED includes the body with the lens barrel
The connecting seat being connected with the body, the body are spacing on the fixed part by the connecting seat.
9. dilator according to claim 8, it is characterised in that the connecting seat includes the fixation being connected with the body
Plate and the sleeve being arranged in the fixed plate in the passage for coordinating the insertion fixed part, the lens barrel pass through the set
Cylinder is arranged in the passage, and the fixed plate at least one end stretches out to form handle along its plate face.
10. dilator according to claim 9, it is characterised in that side of the body along the vertical fixed plate plate face
To provided with elongated hole, the fixed plate is correspondingly provided with the screwed hole being connected with the elongated hole, is worn in the elongated hole and screwed hole
Have for propping up the body and the screw rod of the relatively described dilator height of the MED can be adjusted, on the fixed part
The track revolved along the screw rod centered on the lens barrel when turning around, which is uniformly provided with, multiple to be used to corresponding with the screw rod fasten
With the limited impression of the spacing screw rod.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610832642.7A CN107837102A (en) | 2016-09-19 | 2016-09-19 | A kind of dilator |
| PCT/CN2017/072303 WO2018049779A1 (en) | 2016-09-19 | 2017-01-24 | Expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610832642.7A CN107837102A (en) | 2016-09-19 | 2016-09-19 | A kind of dilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107837102A true CN107837102A (en) | 2018-03-27 |
Family
ID=61618559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610832642.7A Pending CN107837102A (en) | 2016-09-19 | 2016-09-19 | A kind of dilator |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107837102A (en) |
| WO (1) | WO2018049779A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108670319A (en) * | 2018-04-26 | 2018-10-19 | 黎庆初 | A kind of intervertebral disc mirror service aisle system |
| CN112336388A (en) * | 2019-08-07 | 2021-02-09 | 上海三友医疗器械股份有限公司 | Expanding channel tube |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110916733B (en) * | 2019-11-29 | 2022-10-18 | 李玉芳 | Thoracic surgery thorax distraction device with adjustable |
| CN114569328B (en) * | 2022-03-21 | 2023-09-08 | 中国人民解放军空军军医大学 | Adjustable expander for preventing restenosis after external auditory meatus stenosis |
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| CN1972635A (en) * | 2002-06-26 | 2007-05-30 | 华沙整形外科股份有限公司 | Instruments and methods for minimally invasive tissue retraction and surgery |
| US20110313256A1 (en) * | 2003-12-18 | 2011-12-22 | Depuy Spine, Inc. | Surgical methods and surgical kits |
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| GB2495890B (en) * | 2010-08-23 | 2016-12-14 | Nuvasive Inc | Surgical access system |
| AU2012299061B2 (en) * | 2011-08-19 | 2017-02-23 | Nuvasive, Inc. | Surgical retractor system and methods of use |
| US20130103103A1 (en) * | 2011-10-24 | 2013-04-25 | Warsaw Orthopedic, Inc | Surgical system methods for spinal access |
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- 2017-01-24 WO PCT/CN2017/072303 patent/WO2018049779A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1972635A (en) * | 2002-06-26 | 2007-05-30 | 华沙整形外科股份有限公司 | Instruments and methods for minimally invasive tissue retraction and surgery |
| US20110313256A1 (en) * | 2003-12-18 | 2011-12-22 | Depuy Spine, Inc. | Surgical methods and surgical kits |
| CN202211929U (en) * | 2011-08-24 | 2012-05-09 | 萧慕东 | Spreader |
| CN202409095U (en) * | 2012-01-30 | 2012-09-05 | 上海拓腾医疗器械有限公司 | Spreader and spreading device for minimally-invasive surgeries |
| CN206792435U (en) * | 2016-09-19 | 2017-12-26 | 奥斯奥鹏外科产品股份公司 | A kind of dilator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108670319A (en) * | 2018-04-26 | 2018-10-19 | 黎庆初 | A kind of intervertebral disc mirror service aisle system |
| CN112336388A (en) * | 2019-08-07 | 2021-02-09 | 上海三友医疗器械股份有限公司 | Expanding channel tube |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018049779A1 (en) | 2018-03-22 |
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