CN105266925B - Intravascular blocking stent - Google Patents
Intravascular blocking stent Download PDFInfo
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- CN105266925B CN105266925B CN201510748891.3A CN201510748891A CN105266925B CN 105266925 B CN105266925 B CN 105266925B CN 201510748891 A CN201510748891 A CN 201510748891A CN 105266925 B CN105266925 B CN 105266925B
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Abstract
The invention discloses an intravascular blocking stent. The intravascular blocking stent comprises a main stent; the main stent includes a main stent tube and an expansion end arranged at one end of the main stent tube; the expansion end includes an annular stent ring; the diameter of the stent ring is greater than the diameter of the main stent tube; an elastic covering film is arranged between the stent ring and the main stent tube; the elastic covering film includes a thin film sheet and an elastic frame arranged on the thin film sheet; two ends of the elastic frame are respectively provided with a supporting female buckle and a supporting male buckle; and the supporting female buckle and the supporting male buckle are matched with each other. Both of the expansion end and the main stent are indispensable; if the expansion end is not adopted, a fixed position cannot be guaranteed, the progress of an operation will be affected; if the main stent is not adopted, desired effects cannot be realized; and the expansion end and the main stent act simultaneously in the course of the operation, and therefore, time of the operation can be greatly saved, and the survival rate of patients can be improved.
Description
Technical field
The present invention relates to a kind of intravascular occlusion support, belongs to medical instruments field.
Background technology
It is bleeding when reducing operation on liver in clinical position, often need to simultaneously blocks enter liver and go out hepatic blood flow.Blocking blood flow
Operating field can be made clear so that the excision of some tumours, the reparation of wound are smooth, and especially operation on liver, goes out
Blood is more, and effective control does not enter hepatic blood flow and will be unable to be performed the operation；For the huge liver tumour in right side, Caudate Lobe Neoplasms or neighbouring vena hepatica
, there is massive haemorrhage and air due to inferior caval vein and vena hepatica may be torn in inferior caval " central type " liver cancer after root and liver
The danger of embolism, with greater need for while blocking enter liver and going out after hepatic blood flow in " without blood " state menisectomy.Inferior caval blocking is right
It is huge in the impact of systemic hemodynamic, some patientss cause operative failure due to not being resistant to, even results in trouble
Person is dead.
Inferior caval vein blocking can affect the change of systemic hemodynamic, so as to cause multiple complications, how could be
Inferior caval vein can conveniently and efficiently being blocked during operation on liver and carrying out liver blood flow so that operative hemorrhage is few, operating field is clear, again may be used
It is clinically in the urgent need to address with the change of little effect systemic hemodynamic, it is ensured that the normal blood supply of important organ
Problem.
Traditional Sacral Tumors resection operation is often more because dissecting complexity, Voluminously, intraoperative hemorrhage, becomes bone surgery
A difficult problem.The big portion of rumpbone or secondary full amputation art treatment Sacral Tumors have that intraoperative blood loss is more, easily damage surrounding organ,
And cause the generation of other complication.It is reported that high-order excision of presacral tumor intraoperative hemorrhage is put down up to 1600-13000ml
6080ml.Clinically need conventional ligation bilateral internal iliac at present to reduce intraoperative hemorrhage, and this surgical procedure needs
Patient lies supine ligatures bilateral internal iliac under position, then turns to the descending excision of presacral tumor in prone position, needs multiple operations to cut
Mouthful, operating time is long, causes patient trauma larger.Patient trauma how is reduced, shortens operating time, it is mesh that bleeding can be reduced again
Front clinically urgent need to solve the problem.
The content of the invention
In view of the shortcomings of the prior art, the technical problem to be solved is to provide a kind of intravascular occlusion
Support, solves the weak point of existing blood occluding device, and vein or blood flow can be prevented to outflow from wound, obtains clear
Surgical field of view, be easy to repair vascular injury site.
To solve above-mentioned technical problem, the present invention is adopted the technical scheme that, a kind of intravascular occlusion support, including main
Frame, main support includes main support pipe and is arranged at the expanding end of main support pipe one end；The expanding end include annular
Frame ring, the diameter with diameter greater than main support pipe of support ring；Flexible overlay film, bullet are set between the support ring and main support pipe
Property overlay film include diaphragm and the elastic shelf that is arranged on diaphragm；The two ends of the elastic shelf be respectively arranged with support box and
Sub-buckle is supported, box is supported and is supported sub-buckle to be equipped with；Be provided with a clip in the middle part of the support ring, clip away from
It is identical with the diameter of main support pipe with a distance from support ring one end；Length of the length of the elastic shelf less than support ring；It is described
Main support pipe includes supporting section and sends into end, and supporting section includes support metal frame and is arranged at the memory metal supported in metal frame
Frame, on memory metal frame blocking thin film is coated with；The memory metal frame includes some support units, and support unit includes two
Arcuate struts, the middle part of arcuate struts is arc, and the two ends of arcuate struts are linear pattern, and the two ends of two arcuate struts are by length
The connection sheet connection of bar shaped；Between the support unit it is fixedly connected by connection sheet；Between the support ring and elastic shelf,
Reinforced support is provided between elastic shelf and primary branch, reinforced support is memory metal zig zag stent；The arc
The central angle of the segmental arc in the middle part of bar is 15-25 degree, and length is 3-8mm；Segmental arc in the middle part of the arcuate struts and two ends
The angle of straightway is 65-75 degree.
Optimization, above-mentioned intravascular occlusion support, the main support is connected with side stand away from one end of expanding end, collateral
Frame includes a network, and elastic film is coated with outside network.
Optimization, above-mentioned intravascular occlusion support, the network is internally provided with blocking net, and blocking is coated with the net
Elastic film.
Optimization, above-mentioned intravascular occlusion support, the network is memory metal material with blocking net.
Optimization, above-mentioned intravascular occlusion support, the circle centre position of the blocking net is provided with a via, the diameter of via
Less than 1mm.
Optimization, above-mentioned intravascular occlusion support, the circle centre position of the memory metal frame is provided with a main aperture, main aperture
Diameter is less than 1.5mm.
Optimization, above-mentioned intravascular occlusion support, the main support pipe is arc, and its central angle is 16-25 degree, and length is
50-75mm。
Optimization, above-mentioned intravascular occlusion support, the side stand is arc, and its central angle is 8-14 degree, and length is 31-
40mm。
Optimization, above-mentioned intravascular occlusion support, the angle between the side stand and main support pipe is 15-45 degree.
It is an advantage of the current invention that：
（1）Expanding end is provided with, its effect is will to prop expanding end, itself and quilt after blocking stenter to implant Ink vessel transfusing
After the blood vessel end thereof contacts of cut-out, blocking support is prevented to go successively to internal blood vessel, in surgical procedure, will not be because of muscular tremor
And cause device to shift, improve and use reliability.
（2）Support box and support sub-buckle that the two ends of elastic shelf are respectively provided with, after occluding device is loaded into blood vessel,
Support box and support sub-buckle coordinate to be buckled well, and tentatively launches expanding end, plays preliminary supporting role.
（3）After box being supported and supporting sub-buckle cooperation to buckle well, can be by the clip at the middle part of support ring and support ring
End fasten, the entirety for now completing expanding end is opened.
（4）The application is arranged using the elastic shelf support different with support ring two-layer width, and effect is due to different
Surgical environments need different surgical field of view, when surgical field of view is obstructed, elastic shelf is got out and packs up support ring, it is ensured that hand
The art visual field it is good, be user-friendly for operation.
（5）Metal frame is supported to be used to support vascularization passage, convenient blocking support intravasation simultaneously plays a bit
Supporting role.When surgical procedure is long, if without support device, blood vessel otch is easily adhered, and hinders subsequent procedures
The carrying out of work, the setting of metal supporting frames avoids this trouble.
（6）Bloodstream blocking inside main support pipe is mainly by supporting the memory metal frame in metal frame to complete.Leading
After stand tube intravasation inside, there is the memory metal frame that memory metal makes after the impact by blood temperature, slowly
Expansion, endovascular blood stream underwent operative tangent plane is blocked by the blocking thin film that coats thereon.
In the prior art, big many places carry out blood blocking or use air bag using mechanical structure, such
It is larger that mode causes occluding device volume, difficult implantable intravascular inside and complex structure, need during operation is carried out into
Row is certain manually operated completing blood blocking, which increases operating difficulty and operating time.
Memory metal form generation can change in specified temp, and the original state of memory metal frame is made as to launch
Sheet type, and elastic film is coated thereon, then by its folding shrinking.After in the occluding device intravasation, memory
Metal recovers shape due to being heated, and plays a part of to block blood.
（7）The setting of reinforced support provides enough intensity to expanding end, reduces occluding device because false touch is touched
Touch into Ink vessel transfusing, bring inconvenience.
（8）Hole is provided with blocking thin film, can so avoid blood long-time from not flowing and cause frozen plug blood vessel,
And its diameter is less, the blood flow volume of outflow is few, does not affect surgical field of view.When operating time is long, due to needing blood transfusion, loss
Blood volume be negligible.
（9）Side stand is not necessarily meant to what is arranged, its on other occasions, than if any the presence of bifurcated vessels, and
It is also required to carry out blood blocking, is just configured.Structure in side stand is identical with main support, is provided with supporting section, supports
Section includes the memory metal frame for supporting metal frame and being arranged in support metal frame, and on memory metal frame blocking thin film is coated with.
Its operation principle is identical with main support.
In the technical scheme of the application, expanding end and main support are indispensable, have lacked expanding end, do not ensure fixed bit
Put, affect operation progress, lacked main support and be unable to reach desired effects.And both this is action simultaneously in surgical procedure
, operating time is so greatly saved, improve the survival probability of patient.
Description of the drawings
Fig. 1 is the structural representation of embodiments of the invention 1；
Fig. 2 is the present invention looks up structural representation of Fig. 1；
Fig. 3 is the structural representation of embodiments of the invention 2；
In figure 1 be support ring, 2 be diaphragm, 3 be elastic shelf, 4 for support box, 5 for support sub-buckle, 6 be clip, 7
For support metal frame, 8 be arcuate struts, 9 be reinforced support, 10 be blocking thin film, 11 be network, 12 for blocking net.
Specific embodiment
The technical characterstic of the present invention is expanded on further with specific embodiment below in conjunction with the accompanying drawings.
Specific embodiment
Embodiment 1
The present invention is a kind of intravascular occlusion support, solves the weak point of existing blood occluding device, can be prevented
Vein or blood flow outflow from wound, obtain clearly surgical field of view, are easy to repair vascular injury site.
To solve above-mentioned technical problem, the present invention is adopted the technical scheme that, a kind of intravascular occlusion support, including main
Frame, main support includes main support pipe and is arranged at the expanding end of main support pipe one end；The expanding end include annular
Frame ring, the diameter with diameter greater than main support pipe of support ring；Flexible overlay film, bullet are set between the support ring and main support pipe
Property overlay film include diaphragm and the elastic shelf that is arranged on diaphragm；The two ends of the elastic shelf be respectively arranged with support box and
Sub-buckle is supported, box is supported and is supported sub-buckle to be equipped with；Be provided with a clip in the middle part of the support ring, clip away from
It is identical with the diameter of main support pipe with a distance from support ring one end；Length of the length of the elastic shelf less than support ring；It is described
Main support pipe includes supporting section and sends into end, and supporting section includes support metal frame and is arranged at the memory metal supported in metal frame
Frame, on memory metal frame blocking thin film is coated with；The memory metal frame includes some support units, and support unit includes two
Arcuate struts, the middle part of arcuate struts is arc, and the two ends of arcuate struts are linear pattern, and the two ends of two arcuate struts are by length
The connection sheet connection of bar shaped；Between the support unit it is fixedly connected by connection sheet；Between the support ring and elastic shelf,
Reinforced support is provided between elastic shelf and primary branch, reinforced support is memory metal zig zag stent；The arc
The central angle of the segmental arc in the middle part of bar is 15 degree, and length is 3mm；The straightway of segmental arc and two ends in the middle part of the arcuate struts
Angle be 65 degree.The circle centre position of blocking thin film is provided with a via, and the diameter of via is less than 1mm.The circle of memory metal frame
A main aperture is provided with the heart, the diameter of main aperture is less than 1.5mm.Main support pipe is arc, and its central angle is 16 degree, and length is
50mm.Side stand is arc, and its central angle is 8 degree, and length is 31mm.Angle between side stand and main support pipe is 15 degree.
It is an advantage of the current invention that：
（1）Expanding end is provided with, its effect is will to prop expanding end, itself and quilt after blocking stenter to implant Ink vessel transfusing
After the blood vessel end thereof contacts of cut-out, blocking support is prevented to go successively to internal blood vessel, in surgical procedure, will not be because of muscular tremor
And cause device to shift, improve and use reliability.
（2）Support box and support sub-buckle that the two ends of elastic shelf are respectively provided with, after occluding device is loaded into blood vessel,
Support box and support sub-buckle coordinate to be buckled well, and tentatively launches expanding end, plays preliminary supporting role.
（3）After box being supported and supporting sub-buckle cooperation to buckle well, can be by the clip at the middle part of support ring and support ring
End fasten, the entirety for now completing expanding end is opened.
（4）The application is arranged using the elastic shelf support different with support ring two-layer width, and effect is due to different
Surgical environments need different surgical field of view, when surgical field of view is obstructed, elastic shelf is got out and packs up support ring, it is ensured that hand
The art visual field it is good, be user-friendly for operation.
（5）Metal frame is supported to be used to support vascularization passage, convenient blocking support intravasation simultaneously plays a bit
Supporting role.When surgical procedure is long, if without support device, blood vessel otch is easily adhered, and hinders subsequent procedures
The carrying out of work, the setting of metal supporting frames avoids this trouble.
（6）Bloodstream blocking inside main support pipe is mainly by supporting the memory metal frame in metal frame to complete.Leading
After stand tube intravasation inside, there is the memory metal frame that memory metal makes after the impact by blood temperature, slowly
Expansion, endovascular blood stream underwent operative tangent plane is blocked by the blocking thin film that coats thereon.
In the prior art, big many places carry out blood blocking or use air bag using mechanical structure, such
It is larger that mode causes occluding device volume, difficult implantable intravascular inside and complex structure, need during operation is carried out into
Row is certain manually operated completing blood blocking, which increases operating difficulty and operating time.
Memory metal form generation can change in specified temp, and the original state of memory metal frame is made as to launch
Sheet type, and elastic film is coated thereon, then by its folding shrinking.After in the occluding device intravasation, memory
Metal recovers shape due to being heated, and plays a part of to block blood.
（7）The setting of reinforced support provides enough intensity to expanding end, reduces occluding device because false touch is touched
Touch into Ink vessel transfusing, bring inconvenience.
（8）Hole is provided with blocking thin film, can so avoid blood long-time from not flowing and cause frozen plug blood vessel,
And its diameter is less, the blood flow volume of outflow is few, does not affect surgical field of view.When operating time is long, due to needing blood transfusion, loss
Blood volume be negligible.
In the technical scheme of the application, expanding end and main support are indispensable, have lacked expanding end, do not ensure fixed bit
Put, affect operation progress, lacked main support and be unable to reach desired effects.And both this is action simultaneously in surgical procedure
, operating time is so greatly saved, improve the survival probability of patient.
Embodiment 2
The present embodiment is with the difference of embodiment 1：Main support is connected with side stand, side stand away from one end of expanding end
Including a network, elastic film is coated with outside network.Network is internally provided with blocking net, and blocking is online
It is coated with elastic film.Network and blocking net are memory metal material.
The central angle of the segmental arc in the middle part of the arcuate struts is 25 degree, and length is 8mm；Arc in the middle part of the arcuate struts
Shape section is 72 degree with the angle of the straightway at two ends.
Main support pipe is arc, and its central angle is 20 degree, and length is 71mm.
Side stand is arc, and its central angle is 11 degree, and length is 35mm.
Angle between side stand and main support pipe is 25 degree.
Side stand is not necessarily meant to what is arranged, its on other occasions, than if any the presence of bifurcated vessels, and its
Need to carry out blood blocking, be just configured.Structure in side stand is identical with main support, is provided with supporting section, supporting section bag
Include and support metal frame and be arranged at the memory metal frame supported in metal frame, on memory metal frame blocking thin film is coated with.Its work
Make principle identical with main support.
Embodiment 3
The central angle of the segmental arc in the middle part of the arcuate struts is 125 degree, and length is 8mm；In the middle part of the arcuate struts
Segmental arc is 75 degree with the angle of the straightway at two ends.
Main support pipe is arc, and its central angle is 25 degree, and length is 75mm.
Side stand is arc, and its central angle is 14 degree, and length is 40mm.
Angle between side stand and main support pipe is 45 degree.
Certainly, described above is not limitation of the present invention, and the present invention is also not limited to the example above, the art
Those of ordinary skill, in the essential scope of the present invention, the change made, remodeling, addition or replace, should all belong to of the invention
Protection domain.
Claims (9)
1. a kind of intravascular occlusion support, it is characterised in that：Including main support, main support includes main support pipe and is arranged at main propping up
The expanding end of frame pipe one end；The expanding end includes the support ring of annular, support ring it is straight with diameter greater than main support pipe
Footpath；Flexible overlay film is set between the support ring and main support pipe, and elastic overlay film includes diaphragm and is arranged on diaphragm
Elastic shelf；The two ends of the elastic shelf are respectively arranged with support box and support sub-buckle, support box and support sub-buckle to coordinate
Arrange；A clip, the distance and main support pipe of clip distance bracket ring one end are provided with the middle part of the support ring
Diameter is identical；Length of the length of the elastic shelf less than support ring；The main support pipe includes supporting section and sends into end, supports
Section includes the memory metal frame for supporting metal frame and being arranged in support metal frame, and on memory metal frame blocking thin film is coated with；
The memory metal frame includes some support units, and support unit includes two arcuate struts, and the middle part of arcuate struts is arc,
The two ends of arcuate struts are linear pattern, and the two ends of two arcuate struts are connected by the connection sheet of strip；The support unit
Between be to be fixedly connected by connection sheet；It is provided between the support ring and elastic shelf, between elastic shelf and primary branch and adds
Strong support, reinforced support is memory metal zig zag stent；The central angle of the segmental arc in the middle part of the arcuate struts is 15-25
Degree, length is 3-8mm；Segmental arc in the middle part of the arcuate struts is 65-75 degree with the angle of the straightway at two ends.
2. a kind of intravascular occlusion support according to claim 1, it is characterised in that：The main support is away from expanding end
One end is connected with side stand, and side stand includes a network, elastic film is coated with outside network.
3. a kind of intravascular occlusion support according to claim 2, it is characterised in that：The network is internally provided with
Blocking net, blocking is coated with the net elastic film.
4. a kind of intravascular occlusion support according to claim 3, it is characterised in that：The network and blocking net are equal
For memory metal material.
5. a kind of intravascular occlusion support according to claim 4, it is characterised in that：The circle centre position of the blocking net is arranged
The diameter for having a via, via is less than 1mm.
6. a kind of intravascular occlusion support according to claim 5, it is characterised in that：The circle centre position of the memory metal frame
A main aperture is provided with, the diameter of main aperture is less than 1.5mm.
7. a kind of intravascular occlusion support according to claim 6, it is characterised in that：The main support pipe is arc, its
Central angle is 16-25 degree, and length is 50-75mm.
8. a kind of intravascular occlusion support according to claim 7, it is characterised in that：The side stand is arc, its circle
Heart angle is 8-14 degree, and length is 31-40mm.
9. a kind of intravascular occlusion support according to claim 8, it is characterised in that：The side stand and main support pipe it
Between angle be 15-45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510748891.3A CN105266925B (en) | 2015-11-08 | 2015-11-08 | Intravascular blocking stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510748891.3A CN105266925B (en) | 2015-11-08 | 2015-11-08 | Intravascular blocking stent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105266925A CN105266925A (en) | 2016-01-27 |
| CN105266925B true CN105266925B (en) | 2017-05-10 |
Family
ID=55137350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510748891.3A Active CN105266925B (en) | 2015-11-08 | 2015-11-08 | Intravascular blocking stent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105266925B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107693081B (en) * | 2017-11-01 | 2020-05-15 | 张学利 | Blood flow blocking support for operation |
| CN114470344A (en) * | 2022-03-23 | 2022-05-13 | 苏州卓欣雅科技有限公司 | 3D printing degradable intravascular stent loaded with salvianolic acid B |
Citations (7)
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|---|---|---|---|---|
| US5375612A (en) * | 1992-04-07 | 1994-12-27 | B. Braun Celsa | Possibly absorbable blood filter |
| CN200963160Y (en) * | 2006-08-19 | 2007-10-24 | 滕林香 | Tracheotomy protective support |
| CN201150580Y (en) * | 2007-12-26 | 2008-11-19 | 上海康德莱企业发展集团有限公司 | Pipe network type blood vessel stent |
| CN201299672Y (en) * | 2008-12-01 | 2009-09-02 | 谢建 | Support mandrel system for spray coating drug-coated stent |
| CN101559011A (en) * | 2009-05-27 | 2009-10-21 | 上海交通大学 | Drug release tubular support provided with internal supporting wings |
| CN103040542A (en) * | 2012-12-04 | 2013-04-17 | 中国人民解放军第三军医大学第三附属医院 | T-shaped film-covered stent |
| CN104873304A (en) * | 2014-12-19 | 2015-09-02 | 中国人民解放军第二军医大学 | I type endoleak-preventing stent graft system with peripheral-tension-optimizing sponge structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7226474B2 (en) * | 2000-05-01 | 2007-06-05 | Endovascular Technologies, Inc. | Modular graft component junctions |
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2015
- 2015-11-08 CN CN201510748891.3A patent/CN105266925B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5375612A (en) * | 1992-04-07 | 1994-12-27 | B. Braun Celsa | Possibly absorbable blood filter |
| CN200963160Y (en) * | 2006-08-19 | 2007-10-24 | 滕林香 | Tracheotomy protective support |
| CN201150580Y (en) * | 2007-12-26 | 2008-11-19 | 上海康德莱企业发展集团有限公司 | Pipe network type blood vessel stent |
| CN201299672Y (en) * | 2008-12-01 | 2009-09-02 | 谢建 | Support mandrel system for spray coating drug-coated stent |
| CN101559011A (en) * | 2009-05-27 | 2009-10-21 | 上海交通大学 | Drug release tubular support provided with internal supporting wings |
| CN103040542A (en) * | 2012-12-04 | 2013-04-17 | 中国人民解放军第三军医大学第三附属医院 | T-shaped film-covered stent |
| CN104873304A (en) * | 2014-12-19 | 2015-09-02 | 中国人民解放军第二军医大学 | I type endoleak-preventing stent graft system with peripheral-tension-optimizing sponge structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105266925A (en) | 2016-01-27 |
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Inventor after: Yi Ming Inventor after: Huang Rong Inventor before: Xiang Hongxian |
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Effective date of registration: 20170411 Address after: 266200 Jimo Tobacco Road, Shandong, No. 1000 (Jimo City North Hospital) Applicant after: Yi Ming Address before: The middle Tianfu Avenue in Chengdu city Sichuan province 610041 No. 1388 1 8 storey building No. 866 Applicant before: CHENGDU YUYA SCIENCE & TECHNOLOGY CO., LTD. |
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