CN208823782U - A kind of sheath and syringe nozzle of bent moulding - Google Patents
A kind of sheath and syringe nozzle of bent moulding Download PDFInfo
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- CN208823782U CN208823782U CN201820461918.XU CN201820461918U CN208823782U CN 208823782 U CN208823782 U CN 208823782U CN 201820461918 U CN201820461918 U CN 201820461918U CN 208823782 U CN208823782 U CN 208823782U
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- sheath
- cavity
- shaped metal
- moulding
- metal silk
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Abstract
The utility model relates to the sheaths and syringe nozzle of a kind of bent moulding.The sheath includes sheath tube head and the multi-lumen tube for being connected to the first end of the sheath, and moulding cavity and at least one functional cavity are provided in multi-lumen tube, is provided with shaped metal silk in moulding cavity, one end of shaped metal silk is provided with flat positioning region.Sheath provided by the utility model is designed using flat positioning region, can prevent shaped metal silk from rotating and moving axially, and is in line or is reversely bent so that sheath arbitrarily bends moulding and restored under the driving of shaped metal silk, and occupies little space.In addition, improved by the construction to cavity, can non-deformability in reinforced pipe, improve effective liquid cross-sectional in functional cavity.
Description
Technical field
The utility model belongs to medical instruments field, more particularly, to the sheath and syringe of a kind of bent moulding
Spray head.
Background technique
For sheath in medical instrument use than wide, most of is all to connect syringe by Rule head.According to sheath
Function, which carries out classification, can be divided into bent moulding and not bent moulding, and the sheath application range of bent moulding is wider, technology
Difficulty is higher.
Bent sheath is more to have set the chamber for being used to be packed into shaped metal silk other than the cavity of functional property
Road.Shaped metal silk can bend sizing in use, and bent sheath, can be random under the driving of shaped metal silk
Moulding is bent, therefore, the matched combined of shaped metal silk and sheath in sheath is the performance quality for being related to bent sheath
Key technology point.
But since shaped metal silk has fixed reaction force, once toward the bending of direction, it is desirable to recovery be in line or
When person bends toward another direction, often shaped metal silk can after stress in cavity along rotation, and can not be according to making
The requirement of user is bent into different shapes, therefore, sheath is enable to be bent into different shape, and be capable of fixing shape again after bending
Shape is the problem that need to currently overcome.
Utility model content
The purpose of the utility model is to overcome that can be rotated after existing shaped metal silk stress, so that sheath can not be curved
It is converted into required shape and the shortcomings and deficiencies of shape can not be fixed after bending, a kind of sheath of bent moulding, this reality are provided
It is improved with fixed form of the sheath of novel offer to wire, not only makes shaped metal silk in bending process repeatedly
It will not rotate, and required space is small, can be applied to the smaller sheath of sheath tube head.
The another object of the utility model is to provide a kind of syringe nozzle.
For the purpose for realizing above-mentioned utility model, the utility model adopts the following technical solution:
A kind of sheath of bent moulding, the sheath include sheath tube head and the multi-cavity for being connected to the first end of the sheath
It manages, moulding cavity and at least one functional cavity is provided in the multi-lumen tube, is provided with moulding gold in the moulding cavity
Belong to silk, one end of the shaped metal silk is provided with flat positioning region.
In the prior art, it is packed into shaped metal silk for convenience, shaped metal silk is generally designed as circular section.Circle
The wire of tee section is during bending stress, it is possible to because of the hardness of multi-lumen tube and the difference of hardness of shaped metal silk
Different, deflection is variant, causes the deformation of the deformation of shaped metal silk and multi-lumen tube inconsistent, and shaped metal silk is caused to revolve
Turn.If sheath can not fix the rotation of shaped metal silk in internal structure, sheath is in first bending process, it is possible to meeting
The case where there is shaped metal silk and sheath separation, deformation can not be synchronized, that is, user can not be allowed effectively to control sheath
Bending deflection.In addition, if being intended to carry out second of moulding to sheath or the sheath of bending originally being broken directly,
Meeting is because the separation of shaped metal silk and sheath or shaped metal silk rotate and can not change the shape of bending.
One end of shaped metal silk is designed as flat positioning region by the utility model, can be realized and be made by the positioning region
The fixation of type wire and sheath tube head prevents shaped metal silk from rotating during bending stress, also defines and make
The movement of type wire in the axial direction, allow wire can not upper and lower vibration so that sheath can under the driving of shaped metal silk with
Meaning bending moulding and recovery are in line or reversely bend.
Meanwhile the positioning region in this programme uses flat design, occupies little space, does not need consolidating for shaped metal silk
It is fixed deliberately to design space, it can be substantially reduced the diameter of sheath tube head, keep its volume smaller finer, on the one hand, user makes
With in the process will not because sheath tube head is excessive and block vision, on the other hand, when sheath is combined as spare and accessory parts with other parts
When, the volume of entire product can be made smaller, it is more convenient to use.
Preferably, length L of the positioning region in the section of the shaped metal silk radial direction1Greater than the moulding gold
Belong to the diameter of silk, width L of the positioning region in the section of the shaped metal silk radial direction2Less than the shaped metal silk
Diameter.
Preferably, the positioning region exposes to the end face of the multi-lumen tube and is embedded in the sheath tube head, the sheath
The channel to connect with each functional cavity is provided in head.The utility model is by being embedded at the sheath for positioning region (6)
In head, the fixation of shaped metal silk and sheath tube head is realized.
Preferably, the functional cavity includes the first functional cavity and the second functional cavity, in the sheath tube head
Portion is equipped with the distributary division that its inner space is divided into first passage and second channel；Described first functional cavity and the second function
Energy property cavity connects with the first passage and second channel respectively, and the positioning region is embedded in the distributary division.
Preferably, the end face of the first passage forms concave station lower than the end face of the second channel, the distributary division
End face is concordant with the end face of the first passage or second channel.
The design of concave station construction is so that sheath provided by the utility model is more convenient accurate when docking with other components.
When being docked such as sheath with syringe connector, the boss to match is set at the medicine liquid outlet end of syringe connector, is then led to
The mutual cooperation for crossing boss and concave station can be realized between two cavities in sheath tube head in two channels and syringe connector
Accurate docking.
Preferably, the sheath includes at least two functional cavities, is provided in the sheath tube head and each functional chamber
Road mutually corresponds, and the channel with each functional cavity perforation respectively.
Can bending moulding sheath bending moulding in use, deformation occurs for the cavity that can make in sheath, rationally
Cavity design, after capable of making sheath deformation, cavity in sheath keeps balance, each cavity cutting before deformation and after deformation
Area change is small, will not influence the throughput of cavity liquid.Accordingly, the utility model is to functional cavity and moulding cavity
Construction has carried out further improvement.
Preferably, the moulding cavity is located at the axis center of the multi-lumen tube.
Preferably, the cross section of each functional cavity be using the cross-section center of the multi-lumen tube as the circular arc in the center of circle, and
The radiused cross-section of each functionality cavity is centrosymmetric.
Since the circular section of each functional cavity is centrosymmetric, each functionality cavity can shape in multi-lumen tube
At the cavity of balance, also, since axis center has the support of moulding cavity, on the one hand, in the process of bending, each functionality cavity
It is stackable at three-dimensional framework, non-deformability in reinforced pipe, on the other hand, each functional cavity that section is arc-shaped exists
Original sectional area is able to maintain after generation bending and does not have big variation, guarantees that entire multi-lumen tube is effective in functional cavity
Liquid cross-sectional thereby further ensures that the liquid throughput of functional cavity, prevents from blocking.
Preferably, the sheath tube head and the multi-lumen tube are integrally formed.The sheath can be made by Shooting Technique,
The utility model also provides a kind of achievable sheath tube head and the integrally formed preparation method of multi-lumen tube, the preparation side
Method includes the following steps:
S1: there is the multi-lumen tube of functional cavity and moulding cavity using extrusion die preparation；
S2: shaped metal silk is mounted in multi-lumen tube in advance, and one end that shaped metal silk extends multi-lumen tube is designed as
It is flat to obtaining positioning region；
S3: the multi-lumen tube for installing shaped metal silk is put into vertical injection mould and is molded by sheath tube head to get the sheath
Pipe.
A kind of syringe nozzle, the syringe nozzle include any of the above-described sheath and connect respectively with the sheath both ends
The spray head nut and nozzle connect.
Compared with prior art, the utility model has the following beneficial effects:
One end of shaped metal silk is designed as flat positioning by the sheath of bent moulding provided by the utility model
Portion after being fixedly connected with sheath tube head, can prevent shaped metal silk from rotating and moving axially, so that sheath is in shaped metal silk
Driving under can arbitrarily bend moulding and restore be in line or reversely bend.Simultaneously as positioning region uses flat design, account for
It is small with space, it may make the volume of sheath tube head smaller finer.In addition, by the construction to functional cavity and moulding cavity into
Row improves, the non-deformability in reinforced pipe, improves effective liquid cross-sectional in functional cavity.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the sheath of the bent moulding in the utility model embodiment 1；
Fig. 2 is schematic diagram of the sheath of the bent moulding in the utility model embodiment 1 under bending state；
Fig. 3 is the structural schematic diagram of the multi-lumen tube of the sheath of the bent moulding in the utility model embodiment 1；
Fig. 4 is the structural schematic diagram of the shaped metal silk in the utility model embodiment 1；
Fig. 5 be the utility model embodiment 1 in Fig. 4 shown in shaped metal silk positioning region enlarged drawing；
Fig. 6 is the structural schematic diagram of the sheath tube head of the sheath of the bent moulding in the utility model embodiment 1；
Fig. 7 is the structural schematic diagram of the sheath tube head and multi-lumen tube junction in the utility model embodiment 1；
Fig. 8 is the cross-sectional view of the multi-lumen tube in the utility model embodiment 1；
Fig. 9 is the cross-sectional view of multi-lumen tube in the prior art；
Figure 10 is the cross-sectional view of the multi-lumen tube of another embodiment of the utility model；
Figure 11 is the structural schematic diagram of syringe nozzle in the utility model embodiment 2；
Wherein:
1 is sheath tube head, and 2 be multi-lumen tube, and 3 be functional cavity, and 4 be moulding cavity, and 5 be shaped metal silk, and 6 be moulding
The positioning region of wire, 7 be the distributary division of sheath tube head, and 8 be spray head nut, and 9 be nozzle, and 11 be the first sealing ring, and 12 be second
Sealing ring.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with Figure of description
And specific embodiment, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only
To explain the utility model, it is not used to limit the utility model.In addition, each implementation of the utility model disclosed below
Involved technical characteristic can be combined with each other as long as they do not conflict with each other in mode.
It should be noted that it both can be directly another when original part is referred to as " being set to ", " install in " another element
On element, there may also be original parts placed in the middle.When an element is considered " to connect " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
Embodiment 1
As shown in Figure 1 and 2, the present embodiment provides a kind of sheath of bent moulding, which includes integrally formed sheath
First 1 and multi-lumen tube 2, the multi-lumen tube 2 can needing to bend moulding and restoring and be in line or reversely bend according to user.
In the present embodiment, there are two functional cavity 3 and moulding cavities 4 for setting in the multi-lumen tube 2.The moulding cavity
Shaped metal silk 5 is provided in 4, the end face that multi-lumen tube 2 is extended in one end of shaped metal silk 5 forms flat positioning region 6.
Fig. 3 show the structural schematic diagram of multi-lumen tube 2, and functional cavity 3 and moulding cavity are provided in the multi-lumen tube 2
4.The functionality cavity 3 includes the first functional cavity and the second functional cavity, is provided with shaped metal in moulding cavity 4
Silk 5, the end face (or the end face for exposing to multi-lumen tube 2) that multi-lumen tube 2 is extended in one end of shaped metal silk 5, which is formed, flat determines
Position portion 6, the positioning region 6 can be embedded in sheath tube head 1.
Fig. 4 is the structural schematic diagram of the shaped metal silk 5, as shown in figure 4, the shaped metal silk 5 includes cross section
It is in flat positioning region 6 for circular wire main body and set on wire main body one end, the wire main body is set
In in the moulding cavity 4.
Fig. 5 show the enlarged drawing of the positioning region 6.The positioning region 6 is along 5 radial direction upper section of shaped metal silk
Length L1Greater than the diameter of shaped metal silk 5, width L of the positioning region 6 along 5 radial direction upper section of shaped metal silk2Less than moulding
The diameter of wire 5.
One end of shaped metal silk 5 is designed as flat positioning region 6 by the utility model, and the positioning region 6 is embedded
, it can be achieved that the fixation of shaped metal silk 5 and sheath tube head 1, prevents shaped metal silk 5 in the process of bending stress in sheath tube head 1
In rotate, also define the movement of shaped metal silk 5 in the axial direction, allow shaped metal silk 5 can not upper and lower vibration so that
Sheath can arbitrarily bend moulding and be restored under the driving of shaped metal silk 5 and be in line or reversely bend.
Fig. 6 is the structural schematic diagram of the present embodiment mesotheca tube head, as shown in fig. 6, being equipped with inside the sheath tube head 1 will be in it
Portion space is divided into the distributary division 7 of first passage and second channel；First passage and second channel respectively with the first functional chamber
Road and the second functional cavity match and penetrate through.
Preferably, as shown in fig. 6, the end face of first passage forms concave station, the end of distributary division 7 lower than the end face of second channel
Face is concordant with the end face of first passage.The design of concave station construction is so that sheath provided by the utility model is docked with other components
When it is more convenient accurate.When such as sheath with being docked with syringe connector (being not shown, similarly hereinafter), go out in syringe connector medical fluid
The boss to match is arranged in mouthful end, then by the mutual cooperation of boss and concave station can be realized in sheath tube head 1 two channels with
The accurate docking between two cavities in syringe connector.
As shown in Figure 7, it is preferred that the positioning region 6 is embedded in distributary division 7.It does not need deliberately to design for positioning region 6
Space can be substantially reduced the diameter of sheath tube head 1, keep its volume smaller finer, on the one hand, user in use will not
Because sheath tube head 1 is excessive and block vision, on the other hand, when sheath is combined as spare and accessory parts with other parts, can make
The volume of entire product is smaller, and it is more convenient to use.
As shown in figure 8, the cross section of the moulding cavity 4 is round and is located in the axis of multi-lumen tube 2 in the present embodiment
The heart, the cross section of the functionality cavity 3 are and the first functional chamber using the cross-section center of multi-lumen tube 2 as the circular arc in the center of circle
The cross section of road and the second functional cavity is centrosymmetric (mirror surface is symmetrical) setting.
Since the radiused cross-section of the first functional cavity and the second functional cavity is that mirror surface is symmetrical, in multi-lumen tube
Internal structure be two tubuloses parallel construction, there is double-deck bending ability, in the case where keeping cross section unanimous circumstances, phase
(such as Fig. 9) is designed in non-concentric cross section than conventional multi-lumen tube, and sheath provided in this embodiment is keeping cross section consistent
Property on have more excellent bending ability.Also, since axis center has the support of moulding cavity, on the one hand, in bending process
In, two layers of cavity that the first functional cavity and the second functional cavity are constituted is stackable at three-dimensional framework, in reinforced pipe
Non-deformability, on the other hand, each functional cavity that cross section is arc-shaped are able to maintain original cross after bending occurs
Sectional area does not have big variation, guarantees entire multi-lumen tube effective liquid in the first functional cavity and the second functional cavity
Section thereby further ensures that the liquid throughput of functional cavity, prevents from blocking.
It will be appreciated by persons skilled in the art that it is described functionality cavity 3 may be set to be one, three or its
His quantity, the utility model to the quantity of cavity 3 functional in multi-lumen tube with no restrictions.
For example, the multi-lumen tube 2 only includes a functional cavity 3, the sheath in another embodiment of the utility model
The peripheral wall of tube head (1) has certain thickness, described to be directly embedded at the sheath tube head (1) in flat positioning region 6
It in peripheral wall, does not need deliberately to design space for positioning region 6, the diameter of sheath tube head can be substantially reduced, keep its volume smaller more smart
Carefully, on the one hand, user in use will not because sheath tube head is excessive and block vision, on the other hand, when sheath conduct
When spare and accessory parts are combined with other parts, the volume of entire product can be made smaller, it is more convenient to use.
Or in another embodiment of the utility model, as shown in Figure 10, the multi-lumen tube 2 may include three functions
Property cavity 3, be provided in the sheath tube head 1 and correspond with each functional cavity 3 and penetrated through respectively with each functional cavity 3
Channel；The moulding cavity 4 is located at the axis center of the multi-lumen tube 2, and the positioning region 6 is embedded in the sheath tube head 1.
It should be noted that in the embodiments of the present invention 1, the being only for example property of cross-sectional shape of the moulding cavity
Illustrate, utility model can be round or other irregular shapes with no restrictions to moulding cavity cross-sectional shape.
In the embodiments of the present invention 1, the sheath of the bent moulding is made of flexible glue plastics or rubber, can be passed through
Following Shooting Technique preparation, it is specific the preparation method is as follows:
S1: there is the multi-lumen tube of functional cavity and moulding cavity using extrusion die preparation；
S2: shaped metal silk is mounted in multi-lumen tube in advance, and one end that shaped metal silk extends multi-lumen tube is designed as
It is flat to obtaining positioning region；
S3: the multi-lumen tube for installing shaped metal silk is put into vertical injection mould and is molded by sheath tube head to get the sheath
Pipe.
Embodiment 2
As shown in figure 11, the utility model also provides a kind of syringe nozzle.The syringe nozzle includes that this is bent
The sheath 2 of moulding and the spray head nut 8 and nozzle 9 being connect respectively with sheath both ends.The syringe nozzle can be with syringe
Connector connection, for spraying medical fluid.
In the present embodiment, the multi-lumen tube 2 includes the first functional cavity and the second functional cavity, the sheath tube head 1
Including corresponding first passage and second channel, the end face of 1 first passage of sheath tube head is formed lower than the end face of second channel
The boss to match is arranged at syringe connector medicine liquid outlet end for concave station, when so that sheath being docked with syringe connector, leads to
The mutual cooperation for crossing boss and concave station can be realized between two cavities in sheath tube head in two channels and syringe connector
Accurate docking.
As shown in Figure 6, it is preferable that the end face of the first passage is equipped with the first sealing ring 11, the syringe connection
The medicine liquid outlet end of part is equipped with boss, and the concave station on the sheath tube head 1 is adapted therewith, and the raised head face is equipped with recessed
Slot, when tightening spray head nut 8 connect the syringe nozzle with the syringe connector, 11 meeting of the first sealing ring
It is compressed in the groove and constitutes closely sealing, guarantee that medical fluid will not be revealed in the end face of first passage.
As shown in Figure 6, it is preferable that 1 periphery wall of sheath tube head is equipped with the second sealing ring 12, second sealing ring 12
It ensure that the leakproofness of the junction of spray head nut 1 and sheath 2.
In addition, the medicine liquid outlet end of syringe connector is provided with third sealing ring, when syringe connector and syringe
When spray head connects, the leakproofness of syringe connector Yu 8 junction of spray head nut ensure that.The third sealing ring and second close
Seal 12 is located at the upper and lower of syringe connector medicine liquid outlet end face Yu sheath end surfaces junction, guarantees that medical fluid will not be
Syringe connector and syringe nozzle junction are revealed, and concave station, the first sealing ring 11 and the second sealing ring 12 in sheath are passed through
Setting and syringe connector boss and third sealing ring setting, the present embodiment can realize in use at any time
Replace syringe nozzle.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the universal skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.
Claims (10)
1. a kind of sheath of bent moulding, which is characterized in that the sheath includes sheath tube head (1) and is connected to the sheath tube head
(1) multi-lumen tube (2) of one end, the multi-lumen tube (2) is interior to be provided with moulding cavity (4) and at least one functional cavity (3), institute
It states and is provided with shaped metal silk (5) in moulding cavity (4), one end of the shaped metal silk (5) is equipped with flat positioning region
(6).
2. the sheath of bent moulding according to claim 1, which is characterized in that the positioning region (6) is in the moulding
The length L in the section of wire (5) radial direction1Greater than the diameter of the shaped metal silk (5), the positioning region (6) is in institute
State the width L in the section of shaped metal silk radial direction2Less than the diameter of the shaped metal silk (5).
3. the sheath of bent moulding according to claim 1, which is characterized in that the positioning region (6) exposes to described
The end face of multi-lumen tube (2) is simultaneously embedded in the sheath tube head (1), is provided in the sheath tube head (1) and functional cavity (3) phase
The channel of perforation.
4. the sheath of bent moulding according to claim 3, which is characterized in that the functionality cavity (3) includes the
Its inner space is divided into first passage by one functional cavity and the second functional cavity, internal be equipped with of the sheath tube head (1)
With the distributary division (7) of second channel；Described first functional cavity and the first passage connect, the described second functional chamber
Road and the second channel connect, and the positioning region (6) is embedded in the distributary division (7).
5. the sheath of bent moulding according to claim 4, which is characterized in that the end face of the first passage is lower than institute
The end face for stating second channel forms concave station, the end face of the distributary division (7) and the first passage or the end face of second channel is flat
Together.
6. the sheath of bent moulding according to claim 1, which is characterized in that the sheath includes at least two functions
Property cavity (3), be provided in the sheath tube head (1) and mutually corresponded with each functional cavity (3), and respectively with each functional chamber
The channel of road (3) perforation.
7. the sheath of bent moulding according to claim 6, which is characterized in that the moulding cavity (4) is located at described
The axis center of multi-lumen tube (2).
8. the sheath of bent moulding according to claim 6 or 7, which is characterized in that it is each functionality cavity (3) it is transversal
Face be using the cross-section center of the multi-lumen tube (2) as the circular arc in the center of circle, and it is each functionality cavity (3) radiused cross-section be in
Central symmetry.
9. the sheath of bent moulding according to claim 1, which is characterized in that the sheath tube head and the multi-lumen tube one
It is body formed.
10. a kind of syringe nozzle, which is characterized in that the syringe nozzle include any sheath of claim 1 ~ 9 with
And the spray head nut (8) and nozzle (9) being connect respectively with the sheath both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820461918.XU CN208823782U (en) | 2018-04-03 | 2018-04-03 | A kind of sheath and syringe nozzle of bent moulding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820461918.XU CN208823782U (en) | 2018-04-03 | 2018-04-03 | A kind of sheath and syringe nozzle of bent moulding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208823782U true CN208823782U (en) | 2019-05-07 |
Family
ID=66302693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820461918.XU Active CN208823782U (en) | 2018-04-03 | 2018-04-03 | A kind of sheath and syringe nozzle of bent moulding |
Country Status (1)
| Country | Link |
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| CN (1) | CN208823782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108339194A (en) * | 2018-04-03 | 2018-07-31 | 广州迈普再生医学科技有限公司 | A kind of sheath, syringe nozzle and its application of bent moulding |
-
2018
- 2018-04-03 CN CN201820461918.XU patent/CN208823782U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108339194A (en) * | 2018-04-03 | 2018-07-31 | 广州迈普再生医学科技有限公司 | A kind of sheath, syringe nozzle and its application of bent moulding |
| CN108339194B (en) * | 2018-04-03 | 2023-12-26 | 广州迈普再生医学科技股份有限公司 | Bendable sheath tube, injector nozzle and application thereof |
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