CN109925104A - Novel truss type human pipeline's bracket - Google Patents
Novel truss type human pipeline's bracket Download PDFInfo
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- CN109925104A CN109925104A CN201910354570.3A CN201910354570A CN109925104A CN 109925104 A CN109925104 A CN 109925104A CN 201910354570 A CN201910354570 A CN 201910354570A CN 109925104 A CN109925104 A CN 109925104A
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- bracket
- plane
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- 230000007704 transition Effects 0.000 claims description 8
- 238000010146 3D printing Methods 0.000 claims description 5
- 239000003814 drug Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 5
- 230000004323 axial length Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003902 lesion Effects 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- 208000007217 Esophageal Stenosis Diseases 0.000 description 1
- 230000005526 G1 to G0 transition Effects 0.000 description 1
- 206010030178 Oesophageal obstruction Diseases 0.000 description 1
- 206010030194 Oesophageal stenosis Diseases 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 208000029078 coronary artery disease Diseases 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 208000010125 myocardial infarction Diseases 0.000 description 1
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 239000004626 polylactic acid Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
- 208000037804 stenosis Diseases 0.000 description 1
- 230000002966 stenotic effect Effects 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 210000001631 vena cava inferior Anatomy 0.000 description 1
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- Prostheses (AREA)
Abstract
The invention discloses a kind of novel truss type human pipeline brackets, including at least one layer of stretching structure, stretching structure includes the first frame, second frame, third frame, first connecting rod and second connecting rod, first frame includes at least three components, component includes stock and quarter butt, at least three component circumference array form the first frame, first frame face identical and complete with third frame structure, second frame is to rotate to obtain after the first frame is overturn, first frame, the array center of second frame and third frame is conllinear, first frame, it is connected between second frame and the outer salient point of third frame by first connecting rod, first frame, it is connected between second frame and the interior concave point of third frame by second connecting rod.The present invention can guarantee bracket in process of expansion, and axial length elongation so that diseased region be completely covered, and guarantees bracket and the enough real contact areas of human pipeline.
Description
Technical field
The present invention relates to human pipeline's support technology fields, more particularly to a kind of novel truss type human pipeline bracket.
Background technique
The diseases such as coronary heart disease, myocardial infarction, esophageal obstruction, esophageal stricture, central airway organic stenosis seriously threaten people
Class health, treats disease caused by such stenotic obstruction as human pipeline, the most effective means are Stents at present.
Stent refer to using punctures, conduit, inferior vena cava balloon dilation formed and internal metal rack be placed in etc. technologies,
Make narrow, occlusion blood vessel or cavity expansion, lead to again, solves a kind of technology of traditional operation blind area.Interventional therapy method tool
Have the advantages that wound is small, curative effect is high, risk is low, few intercurrent disease, hospital stays are short, is blood vessel and cavity is narrow or the treatment of occlusion
Start the road Liao Yitiaoxin.
Conventional stent axially shortens in radial dilatation, and radial dilatation is bigger, and axial shortening is just more obvious, this
Sample is possible to cause diseased region covering incomplete, greatly influence therapeutic effect.
In addition, conventional stent is two-dimensional design mostly, i.e., it is planar structure after the bus along bracket is cut off and is unfolded.This
Kind structure is after radially expanding, and cylindrical stent wall surface grid structure unfolds opening, and rack cell element can become larger, and bracket
Expansion is bigger, and cell element will become bigger, this will cause bracket and human pipeline's wall surface real contact area of unit area is anxious
Reduce sharply small, the load of such human pipeline's wall surface cannot effectively be shared in the grid structure of bracket, to cause to damage
Tissue or even bracket, which cannot provide enough radial strengths, causes bracket to collapse under pressure.
Therefore, how a kind of bracket is provided, can be guaranteed in process of expansion, bracket axial length elongation, so as to
Diseased region is completely covered in guarantee, and guarantees bracket and the enough real contact areas of human pipeline, is those skilled in the art
Member's technical problem urgently to be resolved.
Summary of the invention
The object of the present invention is to provide a kind of novel truss type human pipeline brackets, can guarantee in process of expansion, branch
Frame axial length elongation so as to guarantee to be completely covered diseased region, and guarantees bracket and the enough reality of human pipeline
Contact area.
To achieve the above object, the present invention provides following schemes:
It is described flexible the invention discloses a kind of novel truss type human pipeline bracket, including at least one layer of stretching structure
Structure includes the first frame, the second frame, third frame, first connecting rod and second connecting rod, first frame, second frame
Frame and the third frame are located in the first plane, the second plane and third plane for setting gradually and being parallel to each other, institute
It states the first plane and is equal to second plane at a distance from second plane at a distance from the third plane, first frame
Frame includes at least three components, and the component includes stock and quarter butt, and at least three component circumference array form described the
One frame, in each component, the first end of the stock and the first end of the quarter butt are fixed by transition circle segmental arc
It is connected, the midpoint of the transition circle segmental arc is a point, the second end of the stock of each component and the adjacent component
The second end of the quarter butt is fixedly linked, tie point be b point, a point evagination of first frame, first frame
The b point indent, first frame face identical and complete with the third frame structure, second frame and described the
One frame structure is identical, and second frame is to rotate to obtain after first frame is overturn, and makes the b of first frame
Point and the axis projection of the b point of second frame mutually stagger, first frame, second frame and described the
The circumference array center of three frames is conllinear, and a point of first frame and a point of second frame are described in
First connecting rod is fixedly linked, and a point of second frame and a point of the third frame pass through the first connecting rod
It is fixedly linked, the b point of first frame and the b point of second frame pass through the second connecting rod stationary phase
Even, the b point of second frame is fixedly linked with the b point of the third frame by the second connecting rod, multiple
The first connecting rod joins end to end to form zigzag broken line, and multiple second connecting rods join end to end to form zigzag broken line, when
When the stretching structure is multilayer, for two layers adjacent of stretching structure, the third of the stretching structure on upper layer
The setting of the first frame integral type of frame and the stretching structure of lower layer.
Preferably, the novel truss type human pipeline bracket is made up of 3D printing equipment.
Preferably, the medicine layer of rejection is resisted in the surface coating of the novel truss type human pipeline bracket.
Preferably, the novel truss type human pipeline internal stent is provided with sacculus, and the air inlet of the sacculus is fixed
There is conduit, the conduit with inflatable structure to be connected to.
The present invention achieves following technical effect compared with the existing technology:
Bracket of the invention can realize radial and axial expansion in expansion simultaneously, which can be with smaller axial direction
Size imports human body, reduces importing difficulty, and can cover bigger patient part after expansion, avoids because of single branch
Frame is not complete to patient part covering and sets up multiple brackets, reduces medical expense；Bracket of the invention is in expansion, the first frame
It is moved outside the b point of frame, the second frame and third frame, the angle of stock and quarter butt becomes larger, and moves outside second connecting rod, is hidden in branch originally
Stock, quarter butt and second connecting rod on the inside of frame contact during stent-expansion with human pipeline's inner wall, are capable of increasing bracket
With the contact area of human pipeline, to reduce damage of the bracket to tissue, and guarantee that bracket has enough radial directions
Support strength consolidates the inner cavity of pipe of lesion.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the overlook direction schematic diagram of the first frame；
Fig. 2 is the overlook direction schematic diagram of the second frame；
Fig. 3 is the relativeness overlook direction schematic diagram of the first frame and the second frame；
Fig. 4 is the first frame, the second frame and third frame relativeness perspective direction schematic diagram；
Fig. 5 is the integrally-built overlook direction schematic diagram of the present embodiment novel truss type human pipeline's bracket；
Fig. 6 is the integrally-built perspective direction schematic diagram of the present embodiment novel truss type human pipeline's bracket；
Description of symbols: the first frame of 1-；11- stock；12- quarter butt；13-a point；14-b point；The second frame of 2-；3-
Three frames；4- first connecting rod；5- second connecting rod.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of novel truss type human pipeline brackets, can guarantee in process of expansion, branch
Frame axial length elongation, so as to guarantee that diseased region is completely covered.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
As shown in figures 1 to 6, the present embodiment provides a kind of novel truss type human pipeline brackets, including at least one layer of flexible knot
Structure.Stretching structure include the first frame 1, the second frame 2, third frame 3, first connecting rod 4 and second connecting rod 5, the first frame 1,
Second frame 2 and third frame 3 are located at the first plane, the second plane and third plane for setting gradually and being parallel to each other
Interior, the first plane is equal to the second plane at a distance from third plane at a distance from the second plane.First frame 1 includes at least three
Component, component include stock 11 and quarter butt 12, and at least three component circumference array form the first frame 1.It is long in each component
The first end of bar 11 and the first end of quarter butt 12 are fixedly linked by transition circle segmental arc, and the midpoint of transition circle segmental arc is a point 13.Often
The second end of the quarter butt 12 of the second end and adjacent component of the stock 11 of a component is fixedly linked, and tie point is b point 14.First frame
13 evagination of a point of frame 1,14 indent of b point of the first frame 1.First frame 1 face identical and complete with 3 structure of third frame, the
Two frames 2 are identical as 1 structure of the first frame, and the second frame 2 is to rotate to obtain after the first frame 1 is overturn, and make the b of the first frame 1
Point 14 and the axis projection of the b point 14 of the second frame 2 mutually stagger, the circumference of the first frame 1, the second frame 2 and third frame 3
Array center is conllinear.The a point 13 of first frame 1 and a point 13 of the second frame 2 are fixedly linked by first connecting rod 4, the second frame
The a point 13 of 2 a point 13 and third frame 3 is fixedly linked by first connecting rod 4, the b point 14 of the first frame 1 and the second frame 2
B point 14 is fixedly linked by second connecting rod 5, and the b point 14 of the second frame 2 and the b point 14 of third frame 3 are solid by second connecting rod 5
It is fixed to be connected.Multiple first connecting rods 4 join end to end to form zigzag broken line, and multiple second connecting rods 5 join end to end to form zigzag folding
Line.Stock 11, quarter butt 12, first connecting rod 4 and second connecting rod 5 interconnection at be fillet.When stretching structure is multilayer,
For two layers adjacent of stretching structure, the first frame 1 one of the stretching structure of the third frame 3 and lower layer of the stretching structure on upper layer
The setting of body formula.
When in use, the mode for first passing through puncture is attached in patient part for the novel truss type human pipeline bracket of the present embodiment
It is close to form bracket introduction channel, then by the support casing of contraction state on the outside of the sacculus of end of conduit, sacculus is inflated on a small quantity, makes ball
The outer surface of capsule and the medial surface of bracket securely offset, and bracket are sent to designated position by conduit, inflatable structure passes through conduit
To inflated, bracket is with balloon expandable, and after stent-expansion is complete, inflatable structure exports gas in sacculus, by conduit and
Sacculus integrally takes out, then sutures site of puncture.Since bracket can not take out once use, if patient part closes again
Plug and narrow symptom, can be superimposed on the inside of the bracket set up and use bracket.
Bracket in the prior art usually while radial dilatation, can shrink in axial direction or length is constant.In this way, in order to
Patient part is completely covered, needs to import bracket identical or even longer with patient part length, increases importing difficulty；Or
The bracket of smaller length is still imported, but multiple brackets need to be used to set gradually in the longitudinal direction, thus realize combined support, but
The acquisition expenses for considerably increasing bracket in this way has aggravated the burden of patient.
The bracket of the present embodiment realizes that the minimum unit of support function is stretching structure, can according to the length of patient part and
The number of plies and size of diameter selection stretching structure.
For single stretching structure, due to 13 evagination of a point of the first frame 1,14 indent of b point, when b point 14 is by sacculus
When pressure moves out, the first frame 1 is achieved that expansion in radial directions.Similarly, the second frame 2 and third frame 3
It is such.Again since the second frame 2 is to rotate to obtain after the first frame 1 is overturn, the b point 14 of the first frame 1 and third frame 3 is equal
Mutually staggered with the axis projection of the b point 14 of the second frame 2, a point 13 of the first frame 1 and third frame 3 with the second frame 2
The axis projection of a point 13 mutually stagger, then first connecting rod 4 and second connecting rod 5 are to be obliquely installed.When the stretching structure is in ball
When expanding under the support of capsule, the first plane is gradually increased at a distance from third plane at a distance from the second plane with the second plane,
First connecting rod 4 and second connecting rod 5 move closer to vertical direction (but it is fully expanded after position will not be vertical direction), realize branch
Frame axially expands.
Therefore, compared with the prior art, the bracket of the present embodiment can realize radial and axial expansion in expansion simultaneously.
The bracket can import human body with smaller axial dimension, reduce importing difficulty, and can cover after expansion bigger
Patient part avoids and sets up multiple brackets because single bracket is not complete to patient part covering, reduces medical expense.
Bracket in the prior art is two-dimensional design mostly, and before and after radial dilatation, bracket connects with human pipeline's inner wall
Contacting surface product is constant, but human pipeline's wall surface real contact area of bracket and unit area strongly reduces.
In a contracted state, stock 11 and the angle of quarter butt 12 are smaller for bracket of the invention, the first frame 1, the second frame 2
And on third frame 3 a point 13 and b point 14 radial distance difference it is larger (relative to circumference array center), only first connecting rod 4
Human pipeline's inner wall can be contacted；When expansion, moved outside the b point 14 of the first frame 1, the second frame 2 and third frame 3, stock 11
Become larger with the angle of quarter butt 12, is moved outside second connecting rod 5, stock 11, quarter butt 12 and the second connecting rod 5 being hidden on the inside of bracket originally
(certain deformation can occur for human pipeline's inner wall) is contacted with human pipeline's inner wall during stent-expansion.
Therefore, compared with the prior art, the bracket of the present embodiment is capable of increasing the contact surface with human pipeline in expansion
Product to reduce damage of the bracket to tissue, and guarantees that bracket has enough radial support intensity, consolidates lesion
Inner cavity of pipe.
When stretching structure is multilayer, for two layers adjacent of stretching structure, the third frame 3 of the stretching structure on upper layer with
1 integral type of the first frame of the stretching structure of lower layer is arranged, and implies that the third frame 3 of the stretching structure on upper layer is exactly stretching for lower layer
First frame 1 of shrinking structure, realizes the intercombination of multiple stretching structures in this way.
Above-mentioned supporting structure in the present embodiment is made up of 3D printing equipment, and 3D printing is mature increasing material manufacturing skill
Art, details are not described herein again.
In order to avoid the secondary injury to patient part, the first end of the stock 11 of the present embodiment and the first end of quarter butt 12
It is fixedly linked by transition circle segmental arc, so that a point of evagination is round and smooth structure.Because plane where zigzag broken line is perpendicular to the
The radial direction of one frame, the second frame and third frame, and zigzag broken line moves closer in the process of expansion of bracket
Straight line, no longer sharp when it is contacted with human pipeline, so there is no need to carry out arc transition.
In order to improve therapeutic effect, prevent human body from occurring rejection, table of the present embodiment in bracket after importing bracket
The medicine layer of rejection is resisted in face coating, which is the common drug of this field, and details are not described herein again.
For the material of human pipeline's bracket of the present embodiment, those skilled in the art can select according to actual needs
It selects, as long as being able to carry out 3D printing and there is certain plastic deformation ability, can be strutted under the action of sacculus, example
Such as stainless steel, Nitinol, cochrome, macromolecule or degradable high molecular material such as polylactic acid material etc..
Apply that a specific example illustrates the principle and implementation of the invention in this specification, above embodiments
Explanation be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art,
According to the thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion in this specification
Appearance should not be construed as limiting the invention.
Claims (4)
1. a kind of novel truss type human pipeline bracket, which is characterized in that including at least one layer of stretching structure, the stretching structure
Including the first frame, the second frame, third frame, first connecting rod and second connecting rod, first frame, second frame and
The third frame is located in the first plane, the second plane and third plane for setting gradually and being parallel to each other, and described
One plane is equal to second plane at a distance from the third plane at a distance from second plane, the first frame packet
At least three components are included, the component includes stock and quarter butt, and at least three component circumference array form first frame
Frame, in each component, the first end of the stock and the first end of the quarter butt are fixedly linked by transition circle segmental arc,
The midpoint of the transition circle segmental arc is a point, and the second end of the stock of each component is described with the adjacent component
The second end of quarter butt is fixedly linked, tie point be b point, a point evagination of first frame, first frame it is described
B point indent, first frame face identical and complete with the third frame structure, second frame and first frame
Frame structure is identical, and second frame is rotate and obtains after first frame overturning, make first frame the b point and
The axis projection of the b point of second frame mutually staggers, first frame, second frame and the third frame
The circumference array center of frame is conllinear, and a point of first frame and a point of second frame pass through described first
Connecting rod is fixedly linked, and a point of second frame is fixed with a point of the third frame by the first connecting rod
It is connected, the b point of first frame is fixedly linked with the b point of second frame by the second connecting rod, institute
The b point of the b point and the third frame of stating the second frame is fixedly linked by the second connecting rod, and multiple described
One connecting rod joins end to end to form zigzag broken line, and multiple second connecting rods join end to end to form zigzag broken line, stretches when described
When shrinking structure is multilayer, for two layers adjacent of stretching structure, the third frame of the stretching structure on upper layer with
The first frame integral type of the stretching structure of lower layer is arranged.
2. novel truss type human pipeline bracket according to claim 1, which is characterized in that the novel truss type human body
Support of pipelines is made up of 3D printing equipment.
3. novel truss type human pipeline bracket according to claim 1, which is characterized in that the novel truss type human body
The medicine layer of rejection is resisted in the surface coating of support of pipelines.
4. novel truss type human pipeline bracket according to claim 1, which is characterized in that the novel truss type human body
Support of pipelines is internally provided with sacculus, and the air inlet of the sacculus is fixed with conduit, and the conduit with inflatable structure to be connected to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910354570.3A CN109925104B (en) | 2019-04-29 | 2019-04-29 | Novel truss type human body pipeline bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910354570.3A CN109925104B (en) | 2019-04-29 | 2019-04-29 | Novel truss type human body pipeline bracket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109925104A true CN109925104A (en) | 2019-06-25 |
| CN109925104B CN109925104B (en) | 2020-11-17 |
Family
ID=66991151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910354570.3A Expired - Fee Related CN109925104B (en) | 2019-04-29 | 2019-04-29 | Novel truss type human body pipeline bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109925104B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2158729Y (en) * | 1993-07-06 | 1994-03-16 | 汪忠镐 | Internal stand for dilatation of blood vessel |
| EP0715834A1 (en) * | 1994-12-09 | 1996-06-12 | Jean-Claude Sgro | Self-expanding endoprothesis |
| US6162245A (en) * | 1997-05-07 | 2000-12-19 | Iowa-India Investments Company Limited | Stent valve and stent graft |
| US20030040791A1 (en) * | 2001-08-22 | 2003-02-27 | Oktay Hasan Semih | Flexible MEMS actuated controlled expansion stent |
| CN203263598U (en) * | 2013-05-06 | 2013-11-06 | 上海市肺科医院 | Blood vessel scaffold |
| CN109350316A (en) * | 2018-11-06 | 2019-02-19 | 广东工业大学 | A kind of intravascular stent monomer and intravascular stent |
-
2019
- 2019-04-29 CN CN201910354570.3A patent/CN109925104B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2158729Y (en) * | 1993-07-06 | 1994-03-16 | 汪忠镐 | Internal stand for dilatation of blood vessel |
| EP0715834A1 (en) * | 1994-12-09 | 1996-06-12 | Jean-Claude Sgro | Self-expanding endoprothesis |
| US6162245A (en) * | 1997-05-07 | 2000-12-19 | Iowa-India Investments Company Limited | Stent valve and stent graft |
| US20030040791A1 (en) * | 2001-08-22 | 2003-02-27 | Oktay Hasan Semih | Flexible MEMS actuated controlled expansion stent |
| CN203263598U (en) * | 2013-05-06 | 2013-11-06 | 上海市肺科医院 | Blood vessel scaffold |
| CN109350316A (en) * | 2018-11-06 | 2019-02-19 | 广东工业大学 | A kind of intravascular stent monomer and intravascular stent |
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| Publication number | Publication date |
|---|---|
| CN109925104B (en) | 2020-11-17 |
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