CN109009590A - The trapezoidal biodegradable stent of biology - Google Patents
The trapezoidal biodegradable stent of biology Download PDFInfo
- Publication number
- CN109009590A CN109009590A CN201810971047.0A CN201810971047A CN109009590A CN 109009590 A CN109009590 A CN 109009590A CN 201810971047 A CN201810971047 A CN 201810971047A CN 109009590 A CN109009590 A CN 109009590A
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- Prior art keywords
- ladder
- rack body
- adjacent
- shaped frame
- trapezoidal
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- 238000009826 distribution Methods 0.000 claims description 9
- 230000001965 increasing effect Effects 0.000 claims description 4
- 239000010432 diamond Substances 0.000 description 23
- 238000000465 moulding Methods 0.000 description 21
- 229910003460 diamond Inorganic materials 0.000 description 18
- 238000010586 diagram Methods 0.000 description 10
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 4
- 230000001771 impaired effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 210000000056 organ Anatomy 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000968 intestinal effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000004218 vascular function Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
- A61F2/07—Stent-grafts
Abstract
The present invention relates to biological support fields, it is intended to solve the problems, such as that existing biodegradable trapezoid support radial support is hypodynamic, provide biodegradable trapezoid support；Rack body includes multiple annular units and multiple circular row connection components；Each annular unit includes multiple circumferential direction annular spreads along rack body and the ladder-shaped frame for being provided with open end, and the open end of adjacent two ladder-shaped frame in an annular unit is respectively facing the both ends of rack body；Each circular row connection component includes the connection strap of multiple annular spreads along the circumferential direction, two adjacent annular unit split shed ends are connected towards between rack body wherein two ladder-shaped frames of one end by connection strap, and the open end for two ladder-shaped frames that connection strap is connected in two adjacent circular row connection components is towards on the contrary.Using the structure of ladder-shaped frame, radial support power is bigger.The open end of ladder-shaped frame in each annular unit is towards on the contrary, can guarantee the radial support power of each annular unit.
Description
Technical field
The present invention relates to biological support fields, in particular to the trapezoidal biodegradable stent of biology.
Background technique
Timbering material is often used in surgical operation, such as provides the intravascular stent of support, intestinal stent, is in addition also wrapped
It includes as nutrient carriers and provides the artificial bone scaffold of certain dimensional structure, artificial organs bracket etc..The bracket of early stage
Material generallys use metal or some other non-degradation material, it usually needs second operation takes out, and simultaneous is some negative
Face effect；And the trapezoidal biodegradable stent of biology is made of may be dissolved in the intracorporal material of people, after being put into vivo, can be inhaled by human body
It receives.
The trapezoidal biodegradable stent of biology can pass through the degradable recovery for realizing vascular function, reduction bad thing at a specified future date
Part incidence, while the diagnosis and treatment project that may also need for patient's future leaves more selection spaces.But biology is trapezoidal
The problem of biodegradable stent maximum is that radial support power is insufficient.
Summary of the invention
The present invention is intended to provide a kind of trapezoidal biodegradable stent of biology, to solve the trapezoidal biodegradable stent diameter of existing biology
To the hypodynamic problem of support.
The embodiment of the present invention is achieved in that
The embodiment of the present invention provides biology trapezoidal biodegradable stent,
Including tube wall in the rack body of the reticular structure of hollow out；
Rack body includes multiple annular units and multiple circular row connection components；Each annular unit includes multiple along branch
The circumferential direction annular spread of frame body and the ladder-shaped frame for being provided with open end, the opening width of each ladder-shaped frame is from bottom end to opening
Mouth end is gradually increased, and the open end of each ladder-shaped frame is arranged towards axial direction, adjacent two ladder in an annular unit
The open end of shape frame is respectively facing the both ends of rack body, and two side arms of a ladder-shaped frame are respectively and in the same annular unit
The side arm of adjacent ladder-shaped frame is overlapped connection；
Multiple annular units are arranged along the axial direction interval of rack body, pass through between two adjacent annular units
Circular row connection component connects, and the open end direction of the ladder-shaped frame between two adjacent annular units respectively corresponds setting；
Each circular row connection component includes the connection strap of multiple annular spreads along the circumferential direction, and adjacent two cyclic annular single
First split shed end is connected towards between rack body wherein two ladder-shaped frames of one end by connection strap, two adjacent circular rows
The open end for two ladder-shaped frames that connection strap is connected in connection component is towards on the contrary.
" open end of each ladder-shaped frame is arranged towards axial direction ", which refers to, is opened on end towards one end of rack body.
" open end of adjacent two ladder-shaped frame in an annular unit is respectively facing the both ends of rack body " refer to towards on the contrary,
One one end towards rack body, another other end towards rack body." two side arms of a ladder-shaped frame respectively with
The side arm of adjacent ladder-shaped frame is overlapped connection in the same annular unit ", two side arms of two ladder-shaped frames of the position are set
It is consistent to set direction, can be overlapped." the open end direction of the ladder-shaped frame between two adjacent annular units respectively corresponds setting ",
The open end one of the open end of trapezoidal circle and a ladder-shaped frame in adjacent annular unit each of in one annular unit
One is corresponding." two adjacent annular unit split shed ends are towards rack body wherein one end " only connection towards wherein one end
, towards being not connected to for the other end；" the opening for two ladder-shaped frames that connection strap is connected in two adjacent circular row connection components
End is towards opposite ", ladder-shaped frame of the connection strap connection open end towards wherein one end in a circular row connection component, adjacent ring
Connection strap connection open end in column connection component can guarantee that rack body has foot towards other end of ladder-shaped frame in this way
While enough radial support power, it may have the effect of compression.
Arc-shaped is used compared to the prior art, and using the structure of ladder-shaped frame, radial support power is bigger.Each annular unit
The open end of interior ladder-shaped frame is towards on the contrary, can guarantee the radial support power of each annular unit.
In an embodiment of the present embodiment:
The trapezoidal biodegradable stent of biology further includes second layer bracket, and rack body is sheathed on the periphery of second layer bracket；
The periphery wall of second layer bracket is arranged at intervals with multiple connecting holes, and the internal perisporium of rack body is arranged at intervals with multiple
It is able to the connecting column of clamping engagement corresponding with connecting hole.
In an embodiment of the present embodiment:
The trapezoidal biodegradable stent of biology further includes third layer bracket, and second layer support casing is set to the periphery of third layer bracket；
The periphery wall of third layer bracket is provided with multiple support columns, and the internal perisporium of second layer bracket is arranged at intervals with multiple energy
The supported hole of enough clamping engagement corresponding with support column.
In an embodiment of the present embodiment:
Between the internal perisporium and second layer bracket of rack body be spaced setting, between second layer bracket and third layer bracket between
Every setting.
In an embodiment of the present embodiment:
Connecting hole and connecting column array distribution along the circumferential direction；
Support column and supported hole array distribution along the circumferential direction are correspondingly arranged a branch between two adjacent connecting holes
Support hole.
The beneficial effects of the present invention are:
Using the structure of ladder-shaped frame, radial support power is bigger.The open end of ladder-shaped frame in each annular unit is towards phase
Instead, it can guarantee the radial support power of each annular unit.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the side structure schematic view for the trapezoidal biodegradable stent of biology that the embodiment of the present invention 1 provides；
Fig. 2 is the structural schematic diagram for the trapezoidal biodegradable stent unfolded state of biology that the embodiment of the present invention 1 provides；
Fig. 3 is the structural schematic diagram for the trapezoidal biodegradable stent compressive state of biology that the embodiment of the present invention 1 provides；
Fig. 4 is the structural schematic diagram for the trapezoidal biodegradable stent internal layer support frame of biology that the embodiment of the present invention 1 provides；
Fig. 5 is the structural schematic diagram for the trapezoidal biodegradable stent outer layer support frame of biology that the embodiment of the present invention 1 provides；
Fig. 6 is the structure of the unfolded state of trapezoidal second of structure of biodegradable stent of biology that the embodiment of the present invention 1 provides
Schematic diagram；
Fig. 7 is the structure of the compressive state of trapezoidal second of structure of biodegradable stent of biology that the embodiment of the present invention 1 provides
Schematic diagram；
Fig. 8 is the partial structural diagram for trapezoidal the first structure of biodegradable stent of biology that the embodiment of the present invention 2 provides；
Fig. 9 is the partial structural diagram of trapezoidal second of structure of biodegradable stent of biology that the embodiment of the present invention 2 provides；
Figure 10 is the structural schematic diagram of the unfolded state for the trapezoidal biodegradable stent of biology that the embodiment of the present invention 2 provides；
Figure 11 is the structural schematic diagram of the compressive state for the trapezoidal biodegradable stent of biology that the embodiment of the present invention 2 provides；
Figure 12 is the side structure schematic view for the trapezoidal biodegradable stent of biology that the embodiment of the present invention 2 provides；
Figure 13 is the schematic view of the front view for the trapezoidal biodegradable stent of biology that the embodiment of the present invention 3 provides；
Figure 14 is the side view structure signal of second of structure of the trapezoidal biodegradable stent of biology that the embodiment of the present invention 3 provides
Figure；
Figure 15 is the side view structure signal of the third structure of the trapezoidal biodegradable stent of biology that the embodiment of the present invention 3 provides
Figure；
Figure 16 is the front view structure signal of the third structure of the trapezoidal biodegradable stent of biology that the embodiment of the present invention 3 provides
Figure；
Figure 17 is the front view structure signal of the first structure of the trapezoidal biodegradable stent of biology that the embodiment of the present invention 4 provides
Figure；
Figure 18 is the front view structure signal of second of structure of the trapezoidal biodegradable stent of biology that the embodiment of the present invention 4 provides
Figure；
Figure 19 is the side structure schematic view for the trapezoidal biodegradable stent of biology that the embodiment of the present invention 4 provides.
Icon: 100- internal layer pipe holder；The first annular unit of 101-；The first frame of 102-；110- outer layer pipe holder；111-
Second annular unit；The second frame of 112-；120- connecting hole；121- connecting column；200- pipe holder；201- support column；210- branch
Pushing out ring column；The first diamond of 211-；212- reinforces diamond；220- connection circular row；The second diamond of 221-；230- connection strap；
240- internal layer support frame；241- support frame；242- arc-shaped workpiece；243- supported hole；300- rack body；301- connecting column；310-
Annular unit；311- ladder-shaped frame；The open end 312-；320- circular row connection component；321- connection strap；330- second layer bracket；
331- connecting hole；332- supported hole；340- third layer bracket；341- support column；400- pipe holder；410- ring structure；412-V
Shape frame；The first moulding of 413-；The second moulding of 414-；The first closed angle end of 415-；The second closed angle end of 416-；The connecting pin 417-；420-
Connection component；421- connection strap；422- elastic strip；430- supplementary structure；431- assistant strip；440- internal layer support frame；441- branch
Support frame；442- arc-shaped workpiece；443- supported hole；444- support column.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that if occur term " center ", "upper", "lower", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings,
Either the invention product using when the orientation or positional relationship usually put, be merely for convenience of the description present invention and simplification retouched
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.If only being used in addition, occurring term " first ", " second " etc. in description of the invention
It is described in distinguishing, is not understood to indicate or imply relative importance.
If being not offered as requiring component absolute in addition, occurring the terms such as term "horizontal", "vertical" in description of the invention
Horizontal or pendency, but can be slightly tilted.If "horizontal" only refers to that its direction is more horizontal with respect to for "vertical", not
It is to indicate that the structure is had to fully horizontally, but can be slightly tilted.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, if there is term
" setting ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, " connection " may be a fixed connection, being also possible to can
Dismantling connection, or be integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also pass through
Intermediary is indirectly connected, and can be the connection inside two elements.For the ordinary skill in the art, can have
Body situation understands the concrete meaning of above-mentioned term in the present invention.
Embodiment 1, referring to Figure 1 to Figure 7.
The trapezoidal biodegradable stent of biology provided in this embodiment,
As shown in Figure 1, including internal layer pipe holder 100 and the outer layer pipe holder 110 for being sheathed on 100 periphery of internal layer pipe holder,
The tube wall of internal layer pipe holder 100 and outer layer pipe holder 110 is in the reticular structure of hollow out；
The periphery wall of internal layer pipe holder 100 is arranged at intervals with multiple row hole group along the circumferential direction, each column hole group include along
The spaced multiple connecting holes 120 of axial direction, each connecting hole 120 extend along radial direction；
The internal perisporium of outer layer pipe holder 110 is provided with the connecting column 121 extended along radial direction, each connecting hole 120
It is correspondingly arranged a connecting column 121, each connecting column 121 is corresponding with a connecting hole 120 to be embedded connection.
The existing trapezoidal biodegradable stent of biology has that radial support power is inadequate, by the way that internal layer pipe holder is arranged
100 and outer layer pipe holder 110, compared to existing, internal layer pipe holder 100 and outer layer pipe holder 110 are set, and production cost changes not
Greatly, but radial support power can be effectively improved.
The distribution of connecting hole 120 and connecting column 121 on internal layer pipe holder 100 and outer layer pipe holder 110, helps to balance
Involve power between internal layer pipe holder 100 and outer layer pipe holder 110 everywhere is supportted in internal layer pipe holder 100 and outer layer pipe holder 110
It opens and in the case of pressure holds two kinds, the stable state of balance is able to maintain, to guarantee that radial support power is intact.
In an embodiment of the present embodiment:
As shown in Figure 1, the radical length size of connecting hole 120 is less than the radical length size of connecting column 121；
Setting is spaced between the periphery wall of internal layer pipe holder 100 and the internal perisporium of outer layer pipe holder 110.
Interval setting, on the one hand, for guaranteeing that internal layer pipe holder 100 and outer layer pipe holder 110 have enough avoiding spaces
Smoothly strut and pressure is held, on the other hand, avoid in its natural state outer layer pipe holder 110 oppress internal layer pipe holder 100 always,
Cause the radial support power of internal layer pipe holder 100 impaired, to influence whole support force.
In an embodiment of the present embodiment: as shown in Figures 2 and 3,
As shown in figure 4, internal layer pipe holder 100 includes multiple first annular units 101 axially arranged side by side；Often
A first annular unit 101 includes multiple the first frames 102 for being sequentially connected and be in regular hexagon along the circumferential direction；Each
The seamed edge of two adjacent the first frames 102 is overlapped connection, two adjacent the first annular units 101 in one annular unit 101
Between two the first frames 102 are corresponding and corresponding wedge angle connection；
As shown in figure 5, outer layer pipe holder 110 includes multiple second annular units 111 axially arranged side by side；Often
A second annular unit 111 includes multiple is sequentially connected along the circumferential direction and the second hexagonal frame 112；Each second
In annular unit 111 two adjacent the second frames 112 seamed edge be overlapped connection, two adjacent the second annular units 111 it
Between two the second frames 112 are corresponding and corresponding wedge angle connection.
Arcuate structure is used compared to the existing trapezoidal biodegradable stent of biology, using the first frame 102 of hexagon and the
Two frames 112 can be improved bigger radial support power.
In an embodiment of the present embodiment:
As shown in Figures 2 and 3, two the first frames 102 adjacent in the first annular unit 101 are overlapped the seamed edge edge of connection
Axial direction setting；Two adjacent the second frames 112 are overlapped the seamed edge of connection also along axial direction in second annular unit 111
Direction setting.Guarantee that radial support power is balanced everywhere.
In an embodiment of the present embodiment:
As shown in Figure 6 and Figure 7, two the first frames 102 adjacent in the first annular unit 101 are overlapped the seamed edge edge of connection
Axial direction extend and along the circumferential direction around setting；Two adjacent 112 weights of the second frame in second annular unit 111
The seamed edge of conjunction connection is axially extending and along the circumferential direction around setting.
Around setting, it is capable of increasing and is allocated as exerting oneself in radial direction, to increase whole radial support power.
In an embodiment of the present embodiment:
As shown in Fig. 2, Fig. 3, Fig. 6 and Fig. 7, two adjacent the first frames 102 are overlapped connection in the first annular unit 101
Seamed edge in the middle part of be provided with connecting hole 120；Two adjacent the second frames 112 are overlapped connection in second annular unit 111
One end of seamed edge is provided with connecting column 121；Connecting column 121 is connect with connecting hole 120, and the first annular unit 101 and second is cyclic annular
Unit 111 is arranged in a staggered manner in the axial direction.
It is arranged in a staggered manner, enhances the support at the middle part of the first frame 102 using the second frame 112, thus the first frame of enhancing
102 integrated support power.
Embodiment 2, referring to Fig. 8 to Figure 12.
The trapezoidal biodegradable stent of biology provided in this embodiment,
Including pipe holder 200, the tube wall of pipe holder 200 is in the reticular structure of hollow out；
Pipe holder 200 includes the support circular row 210 being axially successively spaced apart and connects circular row 220, adjacent
Two support circular rows 210 be arranged a connection circular row 220；
Support circular row 210 includes multiple distributions along the circumferential direction and one pair of them wedge angle is arranged towards circumferential direction the
One diamond 211, the wedge angle connection of two adjacent the first diamonds 211 arranged towards circumferential direction, such as Fig. 8 and Fig. 9 institute
Show, the reinforcement diamond 212 that multiple equimultiples reduce is provided in the first diamond 211；As shown in Figure 8 and Figure 9, circular row is connected
220 include multiple the second diamonds 221 that distribution and one pair of them wedge angle are arranged towards circumferential direction along the circumferential direction, adjacent
Two the second diamonds 221 towards circumferential direction arrange wedge angle connection；
As shown in Figure 10 and Figure 11, the first diamond 211 towards the wedge angle of circumferential direction and the court of the second diamond 221
The wedge angle in direction is opposite in the axial direction；The middle part of every seamed edge of each first diamond 211 and four adjacent the second diamonds
221 wedge angle passes through connection strap 230 respectively and connects.
Support circular row 210 can guarantee and enhance the overall radial support force of pipe holder 200, reinforce setting for diamond 212
It sets, can more further strengthen whole radial support power.And circular row 220 is connected for facilitating pressure to hold overall structure, to reduce
The diameter of pipe holder 200, so as to be sent into inside organ.
In an embodiment of the present embodiment:
As shown in figure 12, pipe holder 200 is provided with multiple axially spaced internal layer support frames 240；
Support frame 241 of each internal layer support frame 240 including the shape that assumes diamond in shape, center and the pipe holder 200 of support frame 241
Axial line is overlapped, and four angles of support frame 241 are respectively arranged with supported hole 243；The internal perisporium of pipe holder 200 is provided with can be with
The support column 201 that supported hole 243 is correspondingly connected with.
The support frame 241 of shape of assuming diamond in shape plays the role of support to pipe holder 200, to enhance the radial branch of pipe holder 200
Support force；When the pressure of pipe holder 200 is held simultaneously, internal layer support frame 240 also can smoothly compress, and realize the diminution of diameter, so as to
It is sent into inside organ after realizing undergauge.
In an embodiment of the present embodiment:
As shown in figure 12, extension and lateral wall energy along the circumferential direction are provided on the outside of four wedge angles of support frame 241
Enough arc-shaped workpieces 242 being bonded with the internal perisporium of pipe holder 200；Supported hole 243 is set to arc-shaped workpiece 242.
Arc-shaped workpiece 242 coincide for realizing internal layer support frame 240 and 200 internal perisporium of pipe holder, to increase internal layer support
Effective contact area of frame 240 and pipe holder 200 avoids support force to reduce the size of support force corresponding to unit area
It excessively concentrates, so that internal layer support frame 240 can effectively support pipe holder 200.
In an embodiment of the present embodiment:
As shown in figure 12, setting is spaced between the lateral wall of arc-shaped workpiece 242 and the internal perisporium of pipe holder 200.Interval setting,
On the one hand, for guaranteeing that internal layer support frame 240 and pipe holder 200 have that enough avoiding spaces smoothly strut and pressure is held, another
Aspect, avoid in its natural state pipe holder 200 oppress internal layer support frame 240 always, cause the radial branch of internal layer support frame 240
Support force is impaired, to influence whole support force.
In an embodiment of the present embodiment:
As shown in Figure 10, four connection straps 230 of each first diamond, 211 surrounding are into the first diamond 211
The heart extends and intersects.Connection strap 230 extends to the center of the first diamond 211, can effectively enhance the first diamond 211 and
Bonding strength between two diamonds 221.
Implement 3, referring to Fig.1 3 to Figure 16.
The trapezoidal biodegradable stent of biology provided in this embodiment,
Including tube wall in the rack body 300 of the reticular structure of hollow out；
As shown in figure 13, rack body 300 includes multiple annular units 310 and multiple circular row connection components 320；Each ring
Shape unit 310 includes multiple circumferential direction annular spreads along rack body 300 and the ladder-shaped frame for being provided with open end 312
311, the opening width of each ladder-shaped frame 311 312 is gradually increased from bottom end to open end, the open end 312 of each ladder-shaped frame 311
It is arranged towards axial direction, the open end 312 of adjacent two ladder-shaped frame 311 in an annular unit 310 is respectively facing branch
The both ends of frame body 300, two side arms of a ladder-shaped frame 311 ladder-shaped frame adjacent in the same annular unit 310 respectively
311 side arm is overlapped connection；
Multiple annular units 310 are arranged along the axial direction interval of rack body 300, two adjacent annular units
It is connected between 310 by circular row connection component 320, the open end of the ladder-shaped frame 311 between two adjacent annular units 310
312 directions respectively correspond setting；
Connection strap 321 of each circular row connection component 320 including multiple annular spreads along the circumferential direction, adjacent two
310 split shed end 312 of annular unit passes through connection strap towards between rack body 300 wherein two ladder-shaped frames 311 of one end
321 connect, the open end 312 for two ladder-shaped frames 311 that connection strap 321 is connected in two adjacent circular row connection components 320
Towards on the contrary.
" open end 312 of each ladder-shaped frame 311 is arranged towards axial direction ", which refers to, is opened on end towards rack body 300
One end." open end 312 of adjacent two ladder-shaped frame 311 in an annular unit 310 is respectively facing rack body 300
Both ends " refer to towards on the contrary, the one end towards rack body 300, another other end towards rack body 300.
" side arm of two side arms of a ladder-shaped frame 311 ladder-shaped frame 311 adjacent in the same annular unit 310 respectively is overlapped company
Connect ", the setting direction of two side arms of two ladder-shaped frames 311 of the position is consistent, can be overlapped." adjacent two are cyclic annular single
The open end 312 of ladder-shaped frame 311 between member 310 is towards respectively corresponding setting ", it is trapezoidal each of in an annular unit 310
The open end 312 of a ladder-shaped frame 311 in the open end 312 of 311 frame of frame and adjacent annular unit 310 corresponds." phase
Adjacent two annular units, 310 split shed end 312 is towards the wherein one end of rack body 300 " only connection is towards wherein one end,
Towards being not connected to for the other end；" two ladder-shaped frames 311 that connection strap 321 is connected in two adjacent circular row connection components 320
Open end 312 towards opposite ", the connection strap 321 in a circular row connection component 320 connects open end 312 towards wherein one
The ladder-shaped frame 311 at end, the connection strap 321 in adjacent circular row connection component 320 connect open end 312 towards other end of ladder
Shape frame 311, while capable of guaranteeing that rack body 300 has enough radial support power in this way, it may have the effect of compression.
Arc-shaped is used compared to the prior art, and using the structure of ladder-shaped frame 311, radial support power is bigger.Each ring-type
The open end 312 of ladder-shaped frame 311 in unit 310 is towards on the contrary, can guarantee the radial support power of each annular unit 310.
In an embodiment of the present embodiment:
As shown in figure 14, the trapezoidal biodegradable stent of biology further includes second layer bracket 330, and rack body 300 is sheathed on the
The periphery of two layers of bracket 330；
The periphery wall of second layer bracket 330 is arranged at intervals with multiple connecting holes 331, the internal perisporium interval of rack body 300
It is provided with multiple connecting columns 301 for being able to clamping engagement corresponding with connecting hole 331.
Connecting hole 331 is arranged in second layer bracket 330, and connecting column 301 is arranged in rack body 300, compares second layer bracket 330
Connecting column 301 is set, and rack body 300 is arranged connecting hole 331, reduces support of the second layer bracket 330 to rack body 300
Restriction effect.
In an embodiment of the present embodiment:
As shown in Figure 15 and Figure 16, the trapezoidal biodegradable stent of biology further includes third layer bracket 340, second layer bracket 330
It is sheathed on the periphery of third layer bracket 340；
The periphery wall of third layer bracket 340 is provided with multiple support columns 341, and the internal perisporium interval of second layer bracket 330 is set
It is equipped with multiple supported holes 332 for capableing of clamping engagement corresponding with support column 341.
Using third layer bracket 340, the radial support power of rack body 300 is further enhanced.Supported hole 332 is set to
Support column 341, rack body 300 and third layer branch is respectively set in two layers of bracket 330, rack body 300 and third layer bracket 340
Frame 340 applies active force to the interior outside of the slave second layer bracket 330 of second layer bracket 330, can not only guarantee that enhancing is radial
Overall support power, can not also weaken the radial support power of single second layer bracket 330.
In an embodiment of the present embodiment:
As shown in Figure 14 and Figure 15, it is spaced and is arranged between the internal perisporium of rack body 300 and second layer bracket 330, second
Setting is spaced between layer bracket 330 and third layer bracket 340.
On the one hand, for guaranteeing that second layer bracket 330 and rack body 300 have enough avoiding spaces smoothly to strut and press
Hold, on the other hand, avoid in its natural state rack body 300 oppress second layer bracket 330 always, cause second layer bracket
330 radial support power is impaired, to influence whole support force.
In an embodiment of the present embodiment:
As shown in Figure 14 and Figure 15, connecting hole 331 and connecting column 301 array distribution along the circumferential direction；
Support column 341 and supported hole 332 array distribution along the circumferential direction, it is corresponding between two adjacent connecting holes 331
One supported hole 332 is set.Make rack body 300 and third layer bracket 340 to the active force of second layer bracket 330 along second
The circumferential surface of layer bracket 330 is uniformly distributed.
Embodiment 4, referring to Fig.1 7 to Figure 19.
The trapezoidal biodegradable stent of biology provided in this embodiment,
Including tube wall in the pipe holder 400 of the reticular structure of hollow out；
As shown in figure 17, pipe holder 400 includes multiple ring structures 410 and multiple connection components 420, multiple ring structures
410 are spaced apart along the axial direction of pipe holder 400, pass through a connection component between two adjacent ring structures 410
420 connections；
Ring structure 410 includes the V-frame 412 of multiple annular spreads along the circumferential direction, and V-frame 412 includes length phase
Deng two the first mouldings 413 and equal length two the second mouldings 414, the length dimension of the first moulding 413 is greater than second
The length dimension of moulding 414；One end of two the first mouldings 413 connects to form the first closed angle end 415, two the second mouldings 414
One end connect to form the second closed angle end 416, the remaining both ends of two the first mouldings 413 are surplus with the second moulding 414 respectively
Under both ends be correspondingly connected with to form two connecting pins 417；First closed angle end 415 and the second closed angle end 416 are towards pipe holder 400
Axial direction setting and towards consistent；
Each connection component 420 includes annular spread and spaced multiple connection straps 421 and more along the circumferential direction
A elastic strip 422, each connection strap 421 and each elastic strip 422 are extended along the axial direction of pipe holder 400, adjacent
Two ring structures 410 adjacent side the first closed angle end 415 and the second closed angle end 416 connected by elastic strip 422, phase
The connecting pin 417 of two adjacent ring structures 410 is connected by connection strap 421.
First moulding 413 of two arrangements that are in the shape of the letter V and the arrangement of the second moulding 414 form " V-frame 412 ", the first moulding
413 and second the angle of moulding 414 can adjust, but since the length of the first moulding 413 and the second moulding 414 is inconsistent,
Therefore, not compressible by mutual inhibition when the first moulding 413 and the second moulding 414 are compressed, so as to
Enough radial support power is provided for pipe holder 400, that is, " V-frame 412 " has the feature of triangle stability.And the
The angle of one moulding 413 and the second moulding 414 can be adjusted, and pipe holder 400 is made to can be realized compression undergauge processing.Elastic strip
422 setting, on the one hand, the connection function between two ring structures 410 of enhancing, to enhance radial support power, another side
Face guarantees that V-frame 412 can be made smoothly to realize compression while enhancing radial support power.
In an embodiment of the present embodiment:
As shown in figure 18, the side of the first closed angle end 415 of each V-frame 412 is provided with supplementary structure 430；
Supplementary structure 430 includes two assistant strips 431 of equal length；The length and the second moulding of each assistant strip 431
414 is equal, and each assistant strip 431 is parallel to the setting of assistant strip 431, and one end of each assistant strip 431 and the first closed angle end 415 connect
It connects, the other end of each assistant strip 431 is connect with connection strap 421.
Supplementary structure 430 further enhances the radial support power of V-frame 412.
In an embodiment of the present embodiment:
As shown in figure 19, pipe holder 400 is provided with multiple axially spaced internal layer support frames 440；
Support frame 441 of each internal layer support frame 440 including the shape that assumes diamond in shape, center and the pipe holder 400 of support frame 441
Axial line is overlapped, and four angles of support frame 441 are respectively arranged with supported hole 443；
The internal perisporium of pipe holder 400 is provided with the support column 444 that can be correspondingly connected with supported hole 443.
The support frame 441 of shape of assuming diamond in shape plays the role of support to pipe holder 400, to enhance the radial branch of pipe holder 400
Support force；When the pressure of pipe holder 400 is held simultaneously, internal layer support frame 440 also can smoothly compress, and realize the diminution of diameter, so as to
It is sent into inside organ after realizing undergauge.
In an embodiment of the present embodiment:
As shown in figure 19, extension and lateral wall energy along the circumferential direction are provided on the outside of four wedge angles of support frame 441
Enough arc-shaped workpieces 442 being bonded with the internal perisporium of pipe holder 400；Supported hole 443 is set to arc-shaped workpiece 442.
Arc-shaped workpiece 442 coincide for realizing internal layer support frame 440 and 400 internal perisporium of pipe holder, to increase internal layer support
Effective contact area of frame 440 and pipe holder 400 avoids support force to reduce the size of support force corresponding to unit area
It excessively concentrates, so that internal layer support frame 440 can effectively support pipe holder 400.
In an embodiment of the present embodiment:
As shown in figure 19, setting is spaced between the lateral wall of arc-shaped workpiece 442 and the internal perisporium of pipe holder 400.Interval setting,
For guaranteeing that internal layer support frame 440 and pipe holder 400 have that enough avoiding spaces smoothly strut and pressure is held, avoid in nature
Lower pipe holder 400 oppresses internal layer support frame 440 always, causes the radial support power of internal layer support frame 440 impaired, to influence whole
The support force of body.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of biodegradable trapezoid support, it is characterised in that:
Including tube wall in the rack body of the reticular structure of hollow out；
The rack body includes multiple annular units and multiple circular row connection components；Each annular unit includes multiple edges
The circumferential direction annular spread of the rack body and be provided with the ladder-shaped frame of open end, the opening of each ladder-shaped frame is wide
Degree is gradually increased from bottom end to open end, and the open end of each ladder-shaped frame is arranged towards axial direction, a ring-type
The open end of adjacent two ladder-shaped frame in unit is respectively facing the both ends of the rack body, a ladder-shaped frame
The side arm of two side arms ladder-shaped frame adjacent in the same annular unit respectively be overlapped connection；
Multiple annular units are arranged along the axial direction interval of the rack body, two adjacent annular units
Between connected by the circular row connection component, the open end court of the ladder-shaped frame between two adjacent annular units
It is arranged to respectively corresponding；
Each circular row connection component includes the connection strap of multiple annular spreads along the circumferential direction, two adjacent rings
Shape unit split shed end is connected towards between the rack body wherein two ladder-shaped frames of one end by the connection strap
It connects, the open ends of two ladder-shaped frames that connection strap described in the circular row connection component of adjacent two is connected is towards phase
Instead.
2. the trapezoidal biodegradable stent of biology according to claim 1, it is characterised in that:
The trapezoidal biodegradable stent of biology further includes second layer bracket, and the rack body is sheathed on the second layer bracket
Periphery；
The periphery wall of the second layer bracket is arranged at intervals with multiple connecting holes, and the internal perisporium of the rack body is arranged at intervals with
Multiple connecting columns for being able to clamping engagement corresponding with the connecting hole.
3. the trapezoidal biodegradable stent of biology according to claim 2, it is characterised in that:
The trapezoidal biodegradable stent of biology further includes third layer bracket, and the second layer support casing is set to the third layer bracket
Periphery；
The periphery wall of the third layer bracket is provided with multiple support columns, and the internal perisporium of the second layer bracket is arranged at intervals with more
A supported hole for capableing of clamping engagement corresponding with the support column.
4. the trapezoidal biodegradable stent of biology according to claim 3, it is characterised in that:
Setting, the second layer bracket and the third are spaced between the internal perisporium of the rack body and the second layer bracket
Setting is spaced between layer bracket.
5. the trapezoidal biodegradable stent of biology according to claim 3, it is characterised in that:
The connecting hole and the connecting column array distribution along the circumferential direction；
The support column and the supported hole array distribution along the circumferential direction, correspondence is set between two adjacent connecting holes
Set the supported hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810971047.0A CN109009590B (en) | 2018-08-24 | Biological trapezoid degradable support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810971047.0A CN109009590B (en) | 2018-08-24 | Biological trapezoid degradable support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109009590A true CN109009590A (en) | 2018-12-18 |
| CN109009590B CN109009590B (en) | 2024-04-26 |
Family
ID=
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030158596A1 (en) * | 2000-04-20 | 2003-08-21 | Takeshi Ikeuchi | Stent |
| CN201135516Y (en) * | 2007-12-13 | 2008-10-22 | 乐普（北京）医疗器械股份有限公司 | Variable diameter blood vessel support |
| CN103930074A (en) * | 2011-05-22 | 2014-07-16 | 东莞天天向上医疗科技有限公司 | Biodegradable drug-eluitng stent patten |
| CN103948454A (en) * | 2014-04-30 | 2014-07-30 | 四川大学华西医院 | Branch controllable type integrated blood vessel scaffold and implantation device thereof |
| CN203763303U (en) * | 2014-03-04 | 2014-08-13 | 东华大学 | Biodegradable endovascular stent |
| US20140343666A1 (en) * | 2010-04-20 | 2014-11-20 | Shanghai Microport Medical (Group) Co., Ltd. | Stent for bifurcated vessel |
| CN106691647A (en) * | 2015-07-20 | 2017-05-24 | 上海交通大学 | Biodegradable metal intravascular stent and application thereof |
| CN106890359A (en) * | 2015-12-17 | 2017-06-27 | 四川大学 | The three-dimensional porous polyurethane support and preparation method repaired for central nervous system injury |
| CN206566053U (en) * | 2016-11-18 | 2017-10-20 | 天津索玛科技有限公司 | A kind of effective biological support of coronary blood |
| CN206714859U (en) * | 2016-12-30 | 2017-12-08 | 齐齐哈尔医学院附属第三医院(齐齐哈尔医学院附属肿瘤医院) | It is a kind of can pre- preventing restenosis of blood vessel double-deck intravascular stent |
| CN209091764U (en) * | 2018-08-24 | 2019-07-12 | 四川大学 | The trapezoidal biodegradable stent of biology |
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030158596A1 (en) * | 2000-04-20 | 2003-08-21 | Takeshi Ikeuchi | Stent |
| CN201135516Y (en) * | 2007-12-13 | 2008-10-22 | 乐普（北京）医疗器械股份有限公司 | Variable diameter blood vessel support |
| US20140343666A1 (en) * | 2010-04-20 | 2014-11-20 | Shanghai Microport Medical (Group) Co., Ltd. | Stent for bifurcated vessel |
| CN103930074A (en) * | 2011-05-22 | 2014-07-16 | 东莞天天向上医疗科技有限公司 | Biodegradable drug-eluitng stent patten |
| CN203763303U (en) * | 2014-03-04 | 2014-08-13 | 东华大学 | Biodegradable endovascular stent |
| CN103948454A (en) * | 2014-04-30 | 2014-07-30 | 四川大学华西医院 | Branch controllable type integrated blood vessel scaffold and implantation device thereof |
| CN106691647A (en) * | 2015-07-20 | 2017-05-24 | 上海交通大学 | Biodegradable metal intravascular stent and application thereof |
| CN106890359A (en) * | 2015-12-17 | 2017-06-27 | 四川大学 | The three-dimensional porous polyurethane support and preparation method repaired for central nervous system injury |
| CN206566053U (en) * | 2016-11-18 | 2017-10-20 | 天津索玛科技有限公司 | A kind of effective biological support of coronary blood |
| CN206714859U (en) * | 2016-12-30 | 2017-12-08 | 齐齐哈尔医学院附属第三医院(齐齐哈尔医学院附属肿瘤医院) | It is a kind of can pre- preventing restenosis of blood vessel double-deck intravascular stent |
| CN209091764U (en) * | 2018-08-24 | 2019-07-12 | 四川大学 | The trapezoidal biodegradable stent of biology |
Non-Patent Citations (1)
| Title |
|---|
| 王果;倪中华;倪晓宇;龙志红;顾兴中;: "食管支架径向支撑性能", 东南大学学报(自然科学版), no. 05 * |
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