CN208864376U - The compound service aisle of vertebral column minimally invasive and device for spreading - Google Patents
The compound service aisle of vertebral column minimally invasive and device for spreading Download PDFInfo
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- CN208864376U CN208864376U CN201820810595.0U CN201820810595U CN208864376U CN 208864376 U CN208864376 U CN 208864376U CN 201820810595 U CN201820810595 U CN 201820810595U CN 208864376 U CN208864376 U CN 208864376U
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- blade
- service aisle
- minimally invasive
- vertebral column
- column minimally
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Abstract
The utility model provides a kind of compound service aisle of vertebral column minimally invasive and device for spreading, is related to device for spreading technical field, to solve the problems, such as service aisle bottom section tissue adhesions.The compound service aisle of vertebral column minimally invasive includes: at least three to strut blade and auxiliary blade, it struts blade and surrounds annular tubular structure, the outer upper region for strutting blade is provided with first connecting portion, the medial surface for strutting blade is provided with sliding slot along its length, auxiliary blade protrudes into sliding slot, the inside for strutting blade is provided with multiple fixed fixture blocks along its length, one end of each fixed fixture block is connect with blade is strutted, the other end is arranged diagonally downward and forms fixed card slot between blade with strutting, it is provided in auxiliary blade and the matched lock pawl of fixed card slot, it is connected between lock pawl and blade by torsional spring.The compound service aisle of vertebral column minimally invasive can separate and be adhered tissue, and stability is strong, while can protect the bottom soft tissue and nerve of service aisle, and expansion range is big.
Description
Technical field
The utility model relates to device for spreading technical field, more particularly, to a kind of compound service aisle of vertebral column minimally invasive and
Device for spreading.
Background technique
Currently, during medical operating, in order to utmostly reduce the wound to patient and the damage to tissue,
Doctor can make as far as possible notch as small as possible.When notch is small, in operation, operating area is seen in order to relatively sharp, lead to
It is often used device for spreading.
Device for spreading will strut blade and extend into form service aisle in notch, so that notch keeps open configuration, from
And it observes and operates convenient for doctor.Device for spreading in the prior art includes most three and struts blade, and three strut blade
Surround service aisle.
But in the actual operation process, due to conditions of patients difference, it is thus possible to appear in the bottom zone of service aisle
The tissue adhesions in domain cannot be softened blade so as to cause tissue and separate, and influence the observation and operation for affected part, and then influence
Procedure.
Utility model content
The purpose of this utility model is to provide a kind of compound service aisles of vertebral column minimally invasive, to solve to deposit in the prior art
Service aisle bottom section tissue adhesions the technical issues of.
The compound service aisle of vertebral column minimally invasive provided by the utility model, comprising:
At least three strut blade and auxiliary blade, it is multiple it is described strut blade and surround annular tubular structure, it is described to strut
The outer upper region of blade is provided with the first connecting portion for connecting with linkage mechanism, the medial surface edge for strutting blade
Length direction is provided with sliding slot, and the partial region of the auxiliary blade protrudes into the sliding slot and is slidably matched with the sliding slot, institute
It states and struts the inside of blade and be provided with multiple fixed fixture blocks along its length, one end of each fixed fixture block and described strut leaf
Piece connection, the other end are arranged diagonally downward and form fixed card slot between blade with described strut, be arranged in the auxiliary blade
Have with the matched lock pawl of the fixed card slot, between the lock pawl and the blade pass through torsional spring connect.
Preferably, it is described strut blade include the first blade, the second blade, third blade and quaterfoil, described first
Blade and the third blade are oppositely arranged, and first blade is opposite with the swing of the third blade and moving direction；
The quaterfoil is oppositely arranged with second blade, and swing and the movement side of the quaterfoil and second blade
To opposite.
It further, is to be detachably connected between the quaterfoil and the linkage mechanism；The compound work of vertebral column minimally invasive
Further include sub-barrier as channel, is set at the top of first blade and the one end of the third blade far from second blade
Be equipped with second connecting portion, the sub-barrier by the second connecting portion respectively with first blade and the third blade
It is detachably connected.
Optionally, on first blade and/or the third blade, the first connecting portion and second connection
Portion is located at the both sides of the edge at top.
Optionally, the second connecting portion is strap.
Preferably, the quantity of the sliding slot is two, is located at the corresponding both sides of the edge region for strutting blade.
Further, the opening of two sliding slots is opposite, and the angle between the two side walls of each sliding slot is sharp
Angle.
Optionally, the top two sides of the auxiliary blade are respectively arranged with sliding block, and the sliding block protrudes into the sliding slot, institute
Auxiliary blade is stated to slide by the sliding block along the sliding slot.
Preferably, the length direction that multiple fixed fixture blocks strut blade described in is uniformly distributed.
Compared with the existing technology, the compound service aisle of vertebral column minimally invasive described in the utility model has the advantage that
In the compound service aisle of vertebral column minimally invasive described in the utility model, blade is respectively strutted respectively and in device for spreading
Linkage mechanism connection, to move or swing under the drive of linkage mechanism, service aisle is expanded.In actual application
In, in the notch for strutting blade insertion patient, and after strutting into service aisle, auxiliary blade is moved down along the chute, so that
One end of auxiliary blade, which is stretched out, struts blade, and auxiliary blade can will be adhered tissue and separate.
Further, since auxiliary blade nail can play better fixed function on bone face to service aisle, so that work
The stability in channel is stronger.After auxiliary blade reaches setting position, the lock pawl of auxiliary blade protrudes into fixed card slot, thus anti-
Only auxiliary blade moves up.
Simultaneously as sliding slot is stretched out in one end of auxiliary blade, therefore auxiliary blade is equivalent to the length for extending service aisle
Degree, allows service aisle to reach deeper position, and auxiliary blade is isolated by the soft tissue for being located at service aisle bottom and nerve
On the outside of service aisle, play a protective role for service aisle bottom soft tissue and nerve.
It, can will be auxiliary in conclusion after strutting notch using the compound service aisle of vertebral column minimally invasive provided by the utility model
It helps blade to be moved downward to along the chute to strut below blade, auxiliary blade at least has following purposes and advantage:
The peelable soft tissue with bone adhesion of auxiliary blade；
Sclerotin is pegged in auxiliary blade front end can play the role of steady operation channel very well；
Auxiliary blade plays the protective effect to the bottom soft tissue and nerve of service aisle as the extension for strutting blade.
The another object of the utility model is to propose a kind of device for spreading, logical to solve work existing in the prior art
The technical issues of tissue adhesions of the bottom section in road.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of device for spreading, comprising: linkage mechanism and the compound work of vertebral column minimally invasive as described in the above technical scheme are logical
Road, the linkage mechanism in the compound service aisle of the vertebral column minimally invasive it is each it is described strut blade and connect, be used for band respectively
It moves and each described struts blade oscillating or movement.
The device for spreading and the compound service aisle of above-mentioned vertebral column minimally invasive compared with the existing technology possessed by advantage phase
Together, details are not described herein.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural representation that blade is strutted in the compound service aisle of vertebral column minimally invasive provided by the embodiment of the utility model
Figure；
Fig. 2 is to strut blade and auxiliary blade in the compound service aisle of vertebral column minimally invasive provided by the embodiment of the utility model
Structural schematic diagram；
Fig. 3 is auxiliary blade in the compound service aisle of vertebral column minimally invasive provided by the embodiment of the utility model in folding process
In with the relative positional relationship schematic diagram that struts fixation fixture block in blade；
Fig. 4 is that auxiliary blade reaches setting in the compound service aisle of vertebral column minimally invasive provided by the embodiment of the utility model
Behind position with the relative positional relationship schematic diagram that struts fixation fixture block in blade；
Fig. 5 is the cross-sectional view that blade is strutted in the compound service aisle of vertebral column minimally invasive provided by the embodiment of the utility model
One；
Fig. 6 is the cross-sectional view that blade is strutted in the compound service aisle of vertebral column minimally invasive provided by the embodiment of the utility model
Two；
Fig. 7 is the structural schematic diagram one of the compound service aisle of vertebral column minimally invasive provided by the embodiment of the utility model；
Fig. 8 is the structural schematic diagram two of the compound service aisle of vertebral column minimally invasive provided by the embodiment of the utility model.
In figure: 10- struts blade；The first blade of 11-；The second blade of 12-；13- third blade；14- quaterfoil；15-
Sub-barrier；20- auxiliary blade；21- lock pawl；31- first connecting portion；32- second connecting portion；33- fixes fixture block；34- is solid
Determine card slot；35- sliding slot.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
As Figure 1-Figure 8, the compound service aisle of vertebral column minimally invasive provided by the embodiment of the utility model, comprising: at least
Three strut blade 10 and auxiliary blade 20, and multiple blades 10 that strut surround annular tubular structure, on the outside for strutting blade 10
Portion region is provided with the first connecting portion 31 for connecting with linkage mechanism, and the medial surface for strutting blade 10 is arranged along its length
There is sliding slot 35, the partial region of auxiliary blade 20 protrudes into sliding slot 35 and is slidably matched with sliding slot 35, struts the interior lateral edge of blade 10
Length direction is provided with multiple fixed fixture blocks 33, and one end of each fixed fixture block 33 is connect with blade 10 is strutted, and the other end is tilted towards
It is lower to be arranged and form fixed card slot 34 between blade 10 with strutting, it is provided in auxiliary blade 20 matched only with fixed card slot 34
Pawl 21 is connected between lock pawl 21 and blade by torsional spring.
In the compound service aisle of vertebral column minimally invasive provided by the embodiment of the utility model, respectively strut blade 10 respectively with strut
Linkage mechanism connection in device, to move or swing under the drive of linkage mechanism, service aisle is expanded.In reality
In application process, in the notch for strutting blade 10 and being inserted into patient, and after strutting into service aisle, by auxiliary blade 20 along the chute 35
It moves down, so that one end of auxiliary blade 20, which is stretched out, struts blade 10.
Specifically, as shown in Figure 3 and Figure 4, since fixed fixture block 33 tilts down setting on strutting blade 10,
20 downward movement of auxiliary blade, the lock pawl 21 in auxiliary blade 20 are lifted up under the action of fixed fixture block 33, turn round
Spring stores power, so that auxiliary blade 20 smoothly moves down；After auxiliary blade 20 is mobile in place, lock pawl 21 is in torsional spring
It moves down, and is protruded into fixed card slot 34 under effect, after auxiliary blade 20 contacts bone face, auxiliary blade 20 is moved up
Trend contacted if moving up with fixed fixture block 33, thus can not but since lock pawl 21 is located in fixed card slot 34
It continues to move up.Therefore, the cooperation of fixed card slot 34 and lock pawl 21 can avoid auxiliary blade 20 in use upwards
It is mobile.
After strutting notch using the compound service aisle of vertebral column minimally invasive provided by the embodiment of the utility model, knife can will be assisted
Piece 20 35 is moved downward to along the chute and struts the lower section of blade 10, and auxiliary blade 20 can will be adhered tissue and separate, to avoid because of group
It knits and is adhered influence procedure.Further, since auxiliary blade 20 is followed closely on bone face, so that the stability of service aisle is more
By force.
Simultaneously as sliding slot 35 is stretched out in one end of auxiliary blade 20, therefore auxiliary blade 20 is equivalent to that extend work logical
The length in road, allows service aisle to reach deeper position, and auxiliary blade 20 will be located at the soft tissue of the bottom of service aisle
It is isolated on the outside of service aisle with nerve, plays a protective role for service aisle bottom soft tissue and nerve.
Specifically, auxiliary blade 20 at least has following purposes and advantage:
The peelable soft tissue with bone adhesion of auxiliary blade 20；
Sclerotin is pegged in 20 front end of auxiliary blade can play the role of steady operation channel very well；
Auxiliary blade 20 plays the protection to the bottom soft tissue and nerve of service aisle as the extension for strutting blade 10
Effect.
The quantity of sliding slot 35 can be one or two, when the quantity of sliding slot 35 is one, in 20 court of auxiliary blade
Sliding block is set to the region of sliding slot 35, sliding block protrudes into sliding slot 35, and can 35 movement along the chute.
When the quantity of sliding slot 35 is two, as shown in Figure 5 and Figure 6, two sliding slots 35, which are located at, corresponding struts leaf
The both sides of the edge region of piece 10.The side of upper and lower ends when sliding slot 35 and the central axis direction towards support blade all has out
When mouth, auxiliary blade 20 is inserted by the upper opening of sliding slot 35, so that the both sides of the edge region of auxiliary blade 20 is located at
In sliding slot 35, auxiliary blade 20 is moved down by auxiliary tool, auxiliary blade 20 35 moves down along the chute and stretches out cunning
The lower openings of slot 35, to stretch out the bone face contact for strutting blade 10 Yu patient, sliding slot 35 has limit for auxiliary blade 20
Position and guiding role.
Alternatively, in another embodiment specific implementation mode, the top two sides of auxiliary blade 20 are respectively arranged with sliding block, and sliding block is stretched
Enter in sliding slot 35, auxiliary blade 20 is located at the region between two sliding slots 35 by sliding block 35 sliding along the chute, auxiliary blade 20.
At this point, sliding slot 35 can all have opening or sliding slot for the side of upper and lower ends and the central axis direction towards support blade
35 upper end and the side of the central axis direction towards support blade all have opening, and lower end does not have opening.Such as Fig. 2 institute
Show,
As shown in figure 5, the side wall of sliding slot 35 can be curved surface；As shown in fig. 6, the side wall of sliding slot 35 can be plane,
In Fig. 6, the opening of two sliding slots 35 is opposite, and the angle between the two side walls of each sliding slot 35 is acute angle.Another specific
In embodiment, the section of sliding slot 35 can be the rectangle with opening.
As depicted in figs. 1 and 2, in a kind of specific embodiment of the present embodiment, multiple fixed fixture blocks 33 are along strutting leaf
The length direction of piece 10 is uniformly distributed.It, can be via so set, sending auxiliary stage property downwards or during secondary light source
The quantity of its fixation fixture block 33 passed through estimates the position of decline, that is to say, that can regard fixed fixture block 33 as object of reference
Or scale bar come using.
As shown in fig. 7, in a kind of preferred embodiment of the present embodiment, strutting blade 10 includes the first blade 11, the
Two blades 12, third blade 13 and quaterfoil 14, the first blade 11 and third blade 13 are oppositely arranged, and the first blade 11 with
The swing of third blade 13 and moving direction are opposite；Quaterfoil 14 is oppositely arranged with the second blade 12, and quaterfoil 14 with
The swing of second blade 12 and moving direction are opposite.
As shown in figure 8, further, being detachably connected between quaterfoil 14 and linkage mechanism；Vertebral column minimally invasive is compound
Type service aisle further includes sub-barrier 15, is set at the top of the first blade 11 and the one end of third blade 13 far from the second blade 12
It is equipped with second connecting portion 32, sub-barrier 15 is detachable with the first blade 11 and third blade 13 respectively by second connecting portion 32
Connection.That is, when cut and hang is without that quaterfoil 14 can be disassembled when expanding larger space, then the
A sub-barrier 15 is connected between one blade 11 and third blade 13, sub-barrier 15 can block mind on the outside of service aisle
It is avoided encountering nerve in surgical procedure.
It is provided only with first connecting portion 31 on the first blade 11 and quaterfoil 14, is not provided with second connecting portion 32.
First connecting portion 31 may be disposed at fringe region, and the outside central region in support blade also can be set.
On the first blade 11 and/or third blade 13, first connecting portion 31 and second connecting portion 32 are located at top
Both sides of the edge.As shown in fig. 7, on the first blade 11, first connecting portion 31 is located at close to one end of the second blade 12, second
Interconnecting piece 32 is located at the other end；On the second blade 12, first connecting portion 31 is located at close to one end of the first blade 11；In third
On blade 13, first connecting portion 31 is located at close to one end of the second blade 12, and second connecting portion 32 is located at the other end；In the 4th leaf
On piece 14, first connecting portion 31 is located at close to one end of third blade 13.That is, in Fig. 7, the first blade 11 and third
Blade 13 is symmetrical in mirror surface, and the second blade 12 is centrosymmetric with quaterfoil 14.
When not using quaterfoil 14, blade is separated with linkage mechanism, sub-barrier 15 is then fixed on original and is set
The position of quaterfoil 14 is set, and the both ends at the top of sub-barrier 15 are connect with the second of the first blade 11 of two sides respectively
The connection of the second connecting portion 32 of portion 32 and third blade 13.
In a specific embodiment, second connecting portion 32 is strap.When sub-barrier 15 is placed in first
After between blade 11 and third blade 13, the strap on the first blade 11 and third blade 13 clamps sub-barrier respectively
15 both sides of the edge region, so that sub-barrier 15 is fixed.
In another embodiment specific implementation mode, second connecting portion 32 includes screw rod and nut, and nut is sheathed on screw rod,
The two sides of sub-barrier 15 are provided with mounting hole, during the installation process, after nut is screwed out, so that the installation on sub-barrier 15
Screw rod is inserted in hole, is then inserted in nut tightening, thus fixed sub-barrier 15.
It in the specific application process, can be by changing the rotational angle for strutting blade 10, the stretching for adjusting auxiliary blade 20
The length of sliding slot 35 replaces the auxiliary blade 20 of different model to adjust service aisle, so that service aisle is suitable for
The affected part of different building shape patient and different conditions.
In addition, the service aisle of settable a variety of different sizes, size, the radian of blade 10 are strutted by changing, or
Change the specific structure size that the factors such as length, pointed shape, the thickness of auxiliary blade 20 change service aisle, to be made not
The service aisle of same specification is suitable for the patient of different building shape using the service aisle of different size.
The another object of the utility model embodiment is to propose a kind of device for spreading, existing in the prior art to solve
The technical issues of tissue adhesions of the bottom section of service aisle.
In order to achieve the above objectives, the technical solution of the utility model embodiment is achieved in that
A kind of device for spreading, comprising: linkage mechanism and the compound service aisle of vertebral column minimally invasive such as above-mentioned technical proposal, connection
Motivation structure is connect with the blade 10 that respectively struts in the compound service aisle of vertebral column minimally invasive, respectively struts the pendulum of blade 10 for driving respectively
It is dynamic or mobile.
When the quantity for strutting blade 10 is four, strutting blade 10 includes the first blade 11, the second blade 12, third leaf
Piece 13 and quaterfoil 14, the first blade 11 and third blade 13 are oppositely arranged, and quaterfoil 14 is set relatively with the second blade 12
It sets.In operation, linkage mechanism drives four to strut the swing of blade 10 or mobile respectively, and linkage mechanism drives first
Swing and the moving direction of blade 11 and third blade 13 are on the contrary, drive the swing and movement of quaterfoil 14 and the second blade 12
It is contrary.
When the bottom that four strut blade 10 is swung to the central axis direction far from service aisle, service aisle is upper
Small lower big circular platform type, when four, which strut blade 10, moves respectively to the central axis direction far from service aisle, service aisle
For isometrical cylindrical type.In the course of surgery, the size and shape of service aisle can be adjusted as the case may be.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of compound service aisle of vertebral column minimally invasive characterized by comprising at least three strut blade and auxiliary blade,
Multiple blades that strut surround annular tubular structure, and the outer upper region for strutting blade, which is provided with, to be used for and gear
The first connecting portion of structure connection, the medial surface for strutting blade are provided with sliding slot, the portion of the auxiliary blade along its length
Subregion protrudes into the sliding slot and is slidably matched with the sliding slot, and the inside for strutting blade is provided with multiple along its length
Fixed fixture block, one end of each fixed fixture block are connect with the blade that struts, the other end be arranged diagonally downward and with the support
Open and form fixed card slot between blade, be provided in the auxiliary blade with the matched lock pawl of the fixed card slot, it is described only
It is connected between pawl and the blade by torsional spring.
2. the compound service aisle of vertebral column minimally invasive according to claim 1, which is characterized in that the blade that struts includes the
One blade, the second blade, third blade and quaterfoil, first blade and the third blade are oppositely arranged, and described
First blade is opposite with the swing of the third blade and moving direction；The quaterfoil is opposite with second blade to be set
It sets, and the quaterfoil is opposite with the swing of second blade and moving direction.
3. the compound service aisle of vertebral column minimally invasive according to claim 2, which is characterized in that the quaterfoil with it is described
It is to be detachably connected between linkage mechanism；The compound service aisle of vertebral column minimally invasive further includes sub-barrier, first blade with
The third blade is provided with second connecting portion at the top of one end far from second blade, the sub-barrier passes through described
Second connecting portion is detachably connected with first blade and the third blade respectively.
4. the compound service aisle of vertebral column minimally invasive according to claim 3, which is characterized in that first blade and/
Or in the third blade, the first connecting portion and the second connecting portion are located at the both sides of the edge at top.
5. the compound service aisle of vertebral column minimally invasive according to claim 3, which is characterized in that the second connecting portion is solid
Clamp plate.
6. the compound service aisle of vertebral column minimally invasive according to claim 1, which is characterized in that the quantity of the sliding slot is two
It is a, it is located at the corresponding both sides of the edge region for strutting blade.
7. the compound service aisle of vertebral column minimally invasive according to claim 6, which is characterized in that the opening of two sliding slots
Relatively, the angle and between the two side walls of each sliding slot is acute angle.
8. the compound service aisle of vertebral column minimally invasive according to claim 1, which is characterized in that the top of the auxiliary blade
Two sides are respectively arranged with sliding block, and the sliding block protrudes into the sliding slot, and the auxiliary blade is by the sliding block along the sliding slot
Sliding.
9. the compound service aisle of vertebral column minimally invasive according to claim 1, which is characterized in that multiple fixed fixture block edges
The length direction for strutting blade is uniformly distributed.
10. a kind of device for spreading characterized by comprising linkage mechanism and such as described in any item backbones of claim 1-9 are micro-
It reconstructs mould assembly service aisle, each in the linkage mechanism and the compound service aisle of the vertebral column minimally invasive described struts blade company
It connects, each described struts blade oscillating or movement for driving respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820810595.0U CN208864376U (en) | 2018-05-28 | 2018-05-28 | The compound service aisle of vertebral column minimally invasive and device for spreading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820810595.0U CN208864376U (en) | 2018-05-28 | 2018-05-28 | The compound service aisle of vertebral column minimally invasive and device for spreading |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208864376U true CN208864376U (en) | 2019-05-17 |
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ID=66461958
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820810595.0U Active CN208864376U (en) | 2018-05-28 | 2018-05-28 | The compound service aisle of vertebral column minimally invasive and device for spreading |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208864376U (en) |
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2018
- 2018-05-28 CN CN201820810595.0U patent/CN208864376U/en active Active
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