CN106166093B - Double balloon-stents with side opening of expansible branch vessel - Google Patents
Double balloon-stents with side opening of expansible branch vessel Download PDFInfo
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- CN106166093B CN106166093B CN201610884295.2A CN201610884295A CN106166093B CN 106166093 B CN106166093 B CN 106166093B CN 201610884295 A CN201610884295 A CN 201610884295A CN 106166093 B CN106166093 B CN 106166093B
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- branch
- expansible
- sacculus
- side opening
- balloon
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- 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
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/958—Inflatable balloons for placing stents or stent-grafts
-
- 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
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/954—Instruments specially adapted for placement or removal of stents or stent-grafts for placing stents or stent-grafts in a bifurcation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/12—Blood circulatory system
Abstract
The present invention is a kind of double balloon-stents with side opening of expansible branch vessel, and it includes double balloon structures in expansible compressed stent and expansible compressed stent, double balloon structures distinguish based on branch sacculus and side branch sacculus；Wherein described expansible compressed stent includes the external diameter two parts of different sizes being connected with each other, but the expansible compressed stent of various outer diameter size be arranged in parallel, including only struts main vessel portion and strut main blood vessel and branch vessel part；Other main branch sacculus is longer than side branch sacculus, but both have staggeredly, and side branch length of balloon terminates in the less support section start of external diameter；The side opening of parallel bracket long axis direction is set at external diameter change, and the aperture of the side opening is slightly larger than the caliber of side branch foley's tube.Marker corresponding with side opening position also is set in bifurcated balloon distal end.This balloon-stent can expand main branch and branch vessel simultaneously, easy to use, simple to operate.
Description
Technical field
The invention belongs to angiocarpy bracket medical instruments field, especially for the use after hemadostewnosis (bifurcated lesions)
A kind of expansion apparatus, and in particular to be a kind of double balloon-stents with side opening of expansible branch vessel.
Background technology
Balloon-stent is a kind of therapeutic device applied to after coronary artery and other hemadostewnosises, by the way that sacculus is arranged at into branch
Inside frame, foley's tube is incorporated into by progress predilation at hemadostewnosis by micro-wire, support is re-introduced into, finally by injection
Contrast agent expands sacculus, and then makes to be arranged on the stent-expansion on the outside of sacculus, props narrow blood vessel.Such a method is one kind
Minimally invasive intervention operation, is widely popularized because small to patient's injury.
But current balloon-stent mostly be directed to Single vessel disease, for bifurcated lesions then complex operation, it is necessary to which experience is rich
Rich patient completes.While extending operating time, there is the formation that support covers ridge caused by incomplete and deformation of timbering
Etc. inferior position.
Although in the prior art there is also the balloon-stent (200910074735.8) of the narrow problem containing branch vessel of solution,
It is related to balloon-stent by setting osculum on foley's tube and support, by the marker at osculum position come locating support position
Put.There is following inferior position in the patent：1：The position of side opening opening and direction determine first to send into support, and branch is micro- leads for rear feeding
Silk.2. side opening can be positioned to scaffold, but it cannot be guaranteed that side opening just to branch openings, it is necessary to further adjustment, and
Rotated after support feeding blood vessel extremely difficult.3. there is the case of lesion for branch openings, simple seal wire passes through very tired
Difficulty, enters back into branch by the invention medium-height trestle side opening and operation difficulty will be further increased.
For bifurcation coronary artery art formula exist complex operation, support covering not exclusively and deformation of timbering caused by ridge
The drawback such as formation.There is provided a kind of band of expansible branch vessel for existing balloon-stent not enough for purpose in the present invention
There are double balloon-stents of side opening.Compared with traditional balloon-stent, application of the invention in bifurcated lesions is primarily present following
Advantage：1. simple to operate, the patient with certain PCI experiences can complete；2. simplify the operating procedure of bifurcated lesions, so as to contract
Short hand art time-histories, reduction contrast agent consumption, reduction patient and patient's radioactive ray open-assembly time；3. cover support to a certain extent
Lid is more complete and reduces the formation of ridge.
The content of the invention
In order to overcome the shortcomings of that the balloon-stent of prior art is applied in bifurcated lesions, it is an object of the invention to provide one
Plant the double balloon-stents with side opening for the expansible branch vessel that can be solved the above problems.
The purpose of the present invention is achieved through the following technical solutions：
A kind of double balloon-stents with side opening of expansible branch vessel, it includes the distensible compression branch with side opening
Double balloon structures in frame and expansible compressed stent, double balloon structures respectively based on branch sacculus and side branch sacculus；Main branch sacculus
With setting the foley's tube connected with sacculus on the inside of one end of side branch sacculus；Set in foley's tube and contrast agent is injected into sacculus
Passage and the passage that passes through micro-wire；The expansible compressed stent includes of different sizes two of external diameter being connected with each other
Divide, and the expansible compressed stent of various outer diameter size be arranged in parallel, the compressed stent of various outer diameter size is same support
Part, two-part diameter is identical after balloon expandable；The main branch sacculus is longer than side branch sacculus, and both have staggeredly, side
Branch length of balloon terminates in the less section start of support external diameter；The side of parallel bracket long axis direction is set at support external diameter change
Hole, the aperture of the side opening is slightly larger than the caliber of side branch foley's tube.Such a setting can be made by being injected into foley's tube
The different expansible compressed stent of external diameter is expanded in shadow agent, effectively can support narrow main blood vessel and branch vessel mouthful
Open；The setting of parallel side opening be based primarily upon it is following some：1. being easy to first send into main branch and branch's seal wire, then branch is sent into along seal wire
Frame；2. for locating support position；3. save the exchange guidewire step in conventional furcation lesion technology；4. make to a certain extent
Support covering is more complete and reduces the formation of ridge..The setting that the different sacculus of length interlocks is based on considered below：1. save tradition
The link of sacculus is sent into bifurcated lesions technology because of expandable stent mesh；2. can directly expand main branch and branch vessel and
Complete to kiss technology.
Further, it is additionally provided with marker (label) on the side branch foley's tube.Marker is arranged on side branch sacculus
The distal end (consistent with conventional stent sacculus) of conduit, the marker of side branch balloon distal is corresponding with the position of side opening.After,
The marker of side branch balloon distal and branch vessel mouthful (distal end of corresponding main branch major axis) position are corresponding.Side branch balloon distal
Marker setting can intuitively see the position of side opening, when facilitating Stent Implantation, assist support side opening accurately to find branch
The position of blood vessel mouthful.
Further, the marker is the impermeable metal powder grain of the X-ray being arranged on foley's tube, wherein it is preferred that
For tungsten powder grain or alloy powder particle.
Further, the main branch sacculus and side branch sacculus, original position are identical, all originate at big external diameter support mouthful.Phase
Same original position can effectively save length of balloon, sacculus is obtained the application of maximum magnitude, expand main branch vessel
It will be expanded simultaneously at branch vessel opening.
Further, the side opening is arranged on the support at external diameter change, and it is tilted upward to small at big external diameter support
At external diameter support, such a setting makes side opening opening parallel in scaffold, be conducive to sending into main branch and branch cause after double sacculus
The entrance of support.
Further, the expansible compressed stent of various outer diameter size is connected by joining section support, and joining section support is set
Putting allows it to accommodate double balloon structures, so as to effectively be expanded to main blood vessel and branch vessel mouthful；The side opening is arranged at
On joining section support.
Further, the balloon material is polyethylene, and the foley's tube material is silicone tube.Such a sacculus of being set to
Conventional arrangement, is readily obtained and effect is good.
Further, being set in expansible compressed stent prevents the medication coat of ISR, and the setting of medication coat can be to prevent
Reangiostenosis after only expanding, treatment is purged while expansion to blocking material.
Further, the timbering material be band mesh metal material, wherein it is preferred that metal material be Ti-Ni alloy.
In use, micro-wire to be sent to main blood vessel and branch vessel distal end, i.e. MV and SB distal ends respectively；Then by double sacculus
Support is sent at bifurcated lesions along two micro-wires；Pass through the marker locating supports of correspondence side opening on the branch sacculus of side；After inject
Contrast agent, expands narrow main branch and branch vessel, adjusts balloon position according to stent-expansion effect, reaches stent-expansion pre-
Determine effect；Finally extract contrast agent out, sacculus and micro-wire are withdrawn from.Complete the use of whole balloon-stent.
Compared with prior art, double balloon-stents with side opening of expansible branch vessel of the invention can be effectively to main blood
Pipe and branch vessel mouthful are expanded；Simple to operate, the patient with certain PCI experiences can complete；Simplify bifurcated lesions
Operating procedure, so as to shorten operation time-histories, reduce contrast agent consumption, reduce patient and patient's radioactive ray open-assembly time；Certain
Make support covering more complete in degree and reduce the formation of ridge.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is that overall structure sectional structure of the present invention is illustrated to be intended to；
Fig. 3 is supporting structure overall structure diagram of the present invention；
Fig. 4 is supporting structure cross section structure diagram of the present invention；
Fig. 5 is Double-sacculus catheter structure schematic diagram of the present invention；
Fig. 6 is foley's tube perspective structure schematic diagram of the present invention；
Fig. 7 is the application method flow chart of balloon-stent of the present invention；
Fig. 8 is application method flow chart of the balloon-stent of the present invention in provisional-T art formulas；
Fig. 9 is application method flow chart of the balloon-stent of the present invention in culottes art formulas；
In figure, 1, the expansible compressed stent of big external diameter；2nd, the expansible compressed stent of small external diameter；3rd, main branch sacculus；4th, side branch
Sacculus；5th, foley's tube；51st, contrast agent passage；52nd, micro-wire passage；521st, micro-wire；6th, side opening；7th, joining section support.
Embodiment
A kind of double balloon-stents with side opening of the expansible branch vessel of embodiment 1
A kind of double balloon-stents with side opening of expansible branch vessel, it includes expansible compressed stent and expansible pressure
Double balloon structures in contracting support, double balloon structures respectively based on branch sacculus 3 and side branch sacculus 4；Main branch sacculus 3 and side branch sacculus
The foley's tube 5 connected with sacculus is set on the inside of 4 one end；The radiography that contrast agent is injected into sacculus is set in foley's tube 5
Agent passage 51 and the micro-wire passage 52 for passing through micro-wire 521；Expansible compressed stent includes the external diameter size being connected with each other not
With two parts, and the expansible compressed stent of various outer diameter size be arranged in parallel, the specially big expansible compressed stent 1 of external diameter
With the expansible compressed stent of small external diameter 2, small external diameter compressed stent struts main blood vessel, and the big expansible compressed stent 1 of external diameter struts master
Blood vessel and branch vessel；The expansible compressed stent of various outer diameter size is connected by joining section support 77, joining section support 7
Set effectively to expand to main blood vessel and branch vessel mouthful.Main branch sacculus 3 is longer than side branch sacculus 4, and original position is identical,
All originate at big external diameter balloon-stent mouthful, both have staggeredly, and the length of side branch sacculus 4 terminates in the less support section start of external diameter；
Main branch sacculus 3 terminates in the less stent ends of external diameter；The side opening 6 of parallel bracket long axis direction, side are set at joining section support 7
At the position respective branches openings in blood vessels of hole 6, the aperture of side opening 6 is slightly larger than the caliber of side branch foley's tube, and side opening is from big external diameter branch
Tilted upward at frame to small external diameter support.Such a setting can once be passed through two foley's tubes 5, by foley's tube 5
Middle injection contrast agent is expanded the different expansible compressed stent of external diameter, can be effectively by narrow main blood vessel and branch
Blood vessel mouthful is strutted；Side opening is arranged on the support at external diameter change, and its setting can make foley's tube pass through support, will prop up
Frame is enclosed on the outside of foley's tube, it is possible to achieve support inserts preceding inserting foley's tube, and side opening is specially to be arranged on external diameter to change
A larger opening parallel with holder orientation on support at change.
Balloon material is polyethylene, and the material of foley's tube 5 is silicone tube.Such a conventional arrangement for being set to sacculus, easily
Obtain and effect is good.Timbering material be band mesh metal material, wherein it is preferred that metal material be Ti-Ni alloy.
A kind of double balloon-stents with side opening of the expansible branch vessel of embodiment 2
A kind of double balloon-stents with side opening of expansible branch vessel, it includes expansible compressed stent and expansible pressure
Double balloon structures in contracting support, double balloon structures respectively based on branch sacculus 3 and side branch sacculus 4；Main branch sacculus 3 and side branch sacculus
The foley's tube 5 connected with sacculus is set on the inside of 4 one end；The radiography that contrast agent is injected into sacculus is set in foley's tube 5
Agent passage 51 and the micro-wire passage 52 for passing through micro-wire 521；Expansible compressed stent includes the external diameter size being connected with each other not
With two parts, and the expansible compressed stent of various outer diameter size be arranged in parallel, the specially big expansible compressed stent 1 of external diameter
With the expansible compressed stent of small external diameter 2, small external diameter compressed stent struts main blood vessel, and the big expansible compressed stent 1 of external diameter struts master
Blood vessel and branch vessel；The expansible compressed stent of various outer diameter size is connected by joining section support 77, joining section support 7
Set effectively to expand to main blood vessel and branch vessel mouthful.Main branch sacculus 3 is longer than side branch sacculus 4, and original position is identical,
All originate at big external diameter balloon-stent mouthful, both have staggeredly, and the length of side branch sacculus 4 terminates in the less support section start of external diameter；
Main branch sacculus 3 terminates in the less stent ends of external diameter；The side opening 6 of parallel bracket long axis direction, side are set at joining section support 7
At the position respective branches openings in blood vessels of hole 6, the aperture of side opening 6 is slightly larger than the caliber of side branch foley's tube, and side opening is from big external diameter branch
Tilted upward at frame to small external diameter support.Such a setting can once be passed through two foley's tubes 5, by foley's tube 5
Middle injection contrast agent is expanded the different expansible compressed stent of external diameter, can be effectively by narrow main blood vessel and branch
Blood vessel mouthful is strutted；Side opening is arranged on the support at external diameter change, and its setting can make foley's tube pass through support, will prop up
Frame is enclosed on the outside of foley's tube, it is possible to achieve support inserts preceding inserting foley's tube, and side opening is specially to be arranged on external diameter to change
A larger opening parallel with holder orientation on support at change.
Balloon material is polyethylene, and the material of foley's tube 5 is silicone tube.Such a conventional arrangement for being set to sacculus, easily
Obtain and effect is good.Timbering material be band mesh metal material, wherein it is preferred that metal material be Ti-Ni alloy.
Marker is additionally provided with foley's tube.Marker is arranged on the distal end of side branch foley's tube, after with branch
Blood nozzle position correspondence.Marker setting can intuitively see the position of branch vessel mouthful, when facilitating Stent Implantation, assist
Support accurately finds the position of branch vessel mouthful.
A kind of double balloon-stents with side opening of the expansible branch vessel of embodiment 3
A kind of double balloon-stents with side opening of expansible branch vessel, it includes expansible compressed stent and expansible pressure
Double balloon structures in contracting support, double balloon structures respectively based on branch sacculus 3 and side branch sacculus 4；Main branch sacculus 3 and side branch sacculus
The foley's tube 5 connected with sacculus is set on the inside of 4 one end；The radiography that contrast agent is injected into sacculus is set in foley's tube 5
Agent passage 51 and the micro-wire passage 52 for passing through micro-wire 521；Expansible compressed stent includes the external diameter size being connected with each other not
With two parts, and the expansible compressed stent of various outer diameter size be arranged in parallel, the specially big expansible compressed stent 1 of external diameter
With the expansible compressed stent of small external diameter 2, small external diameter compressed stent struts main blood vessel, and the big expansible compressed stent 1 of external diameter struts master
Blood vessel and branch vessel；The expansible compressed stent of various outer diameter size is connected by joining section support 77, joining section support 7
Set effectively to expand to main blood vessel and branch vessel mouthful.Main branch sacculus 3 is longer than side branch sacculus 4, and original position is identical,
All originate at big external diameter balloon-stent mouthful, both have staggeredly, and the length of side branch sacculus 4 terminates in the less support section start of external diameter；
Main branch sacculus 3 terminates in the less stent ends of external diameter；The side opening 6 of parallel bracket long axis direction, side are set at joining section support 7
At the position respective branches openings in blood vessels of hole 6, the aperture of side opening 6 is slightly larger than the caliber of side branch foley's tube, and side opening is from big external diameter branch
Tilted upward at frame to small external diameter support.Such a setting can once be passed through two foley's tubes 5, by foley's tube 5
Middle injection contrast agent is expanded the different expansible compressed stent of external diameter, can be effectively by narrow main blood vessel and branch
Blood vessel mouthful is strutted；Side opening is arranged on the support at external diameter change, and its setting can make foley's tube pass through support, will prop up
Frame is enclosed on the outside of foley's tube, it is possible to achieve support inserts preceding inserting foley's tube, and side opening is specially to be arranged on external diameter to change
A larger opening parallel with holder orientation on support at change.
Balloon material is polyethylene, and the material of foley's tube 5 is silicone tube.Such a conventional arrangement for being set to sacculus, easily
Obtain and effect is good.Timbering material be band mesh metal material, wherein it is preferred that metal material be Ti-Ni alloy.
Marker is additionally provided with foley's tube.Marker sets branch in the distal end of foley's tube, after with branch
Blood nozzle position correspondence.Marker setting can intuitively see the position of branch vessel mouthful, when facilitating Stent Implantation, assist
Support accurately finds the position of branch vessel mouthful.
Being set in expansible compressed stent prevents the medication coat of ISR, and the setting of medication coat can be prevented after expansion
Reangiostenosis, expansion while to block material be purged treatment.
The application method of double balloon-stents with side opening of the expansible branch vessel of embodiment 4
The application method of double balloon-stents with side opening of expansible branch vessel is：Micro-wire is sent to master respectively first
Blood vessel and branch vessel distal end, i.e. MV and SB distal ends (such as Fig. 7 steps 1)；
Then double balloon-stents are sent at bifurcated lesions along two micro-wires, pass through correspondence side opening on the branch sacculus of side
Marker locating supports, inject contrast agent afterwards, and the purpose that two sacculus of expansion reach the narrow main branch of expansion and branch vessel (is such as schemed
7 steps 2),
Balloon position is adjusted according to stent-expansion effect, stent-expansion is reached desired effects (such as Fig. 7 steps 3)；Extract out
Contrast agent, balloon-stent and micro-wire are withdrawn from；Complete the use of whole balloon-stent.
Note：Provisional-T arts are T support technologies or if necessary side branch support technology if necessary.
Use of the double balloon-stents with side opening of the expansible branch vessel of embodiment 5 in provisional-T art formulas
Method
1) application method of the double balloon-stents with side opening of expansible branch vessel in provisional-T art formulas
For：Micro-wire is sent to main blood vessel and branch vessel distal end, i.e. MV and SB distal ends (such as Fig. 8 steps 1) respectively first；
2) sacculus is introduced in main branch vessel, narrow main branch vessel is first expanded (such as Fig. 8 steps 2)；
3) according to the step of embodiment 7 use balloon-stent of the present invention (such as Fig. 8 steps 3)；
It if 4) branch vessel is undesirable, need to further handle, then one side branch balloon-stent is set, expand branch vessel
(such as Fig. 8 steps 4).
Note：Culottes arts are divided skirt formula support technology
Application method of the double balloon-stents with side opening of the expansible branch vessel of embodiment 6 in culottes art formulas
1) application method of the double balloon-stents with side opening of expansible branch vessel in culottes art formulas is：First
Micro-wire is sent to main blood vessel and branch vessel distal end, i.e. MV and SB distal ends (such as Fig. 9 steps 1) respectively；
2) sacculus is introduced in main branch vessel, narrow main branch vessel is expanded (such as Fig. 9 steps 2)；
3) sacculus is introduced in branch vessel, narrow branch vessel is expanded (such as Fig. 9 steps 2)；
4) according to the step of embodiment 7 use balloon-stent of the present invention (such as Fig. 9 steps 4)；
5) balloon-stent of the present invention is set again after, and according to balloon-stent of the present invention is used the step of embodiment 7, expansion divides
Branch vessel (such as Fig. 9 steps 5).
The explanation of above-described embodiment is only intended to understand the present invention.It should be pointed out that for one of ordinary skill in the art
For, under the premise without departing from the principles of the invention, some improvement can also be carried out to the present invention, these improvement will also fall into this
In invention scope of the claims.
Claims (9)
1. a kind of double balloon-stents with side opening of expansible branch vessel, it includes expansible compressed stent and expansible compression
Double balloon structures in support, double balloon structures respectively based on branch sacculus and side branch sacculus；Main branch sacculus and the one of side branch sacculus
End inner side sets the foley's tube connected with sacculus；Set in foley's tube and the passage of contrast agent is injected into sacculus and by micro-
The passage of seal wire；External diameter of the expansible compressed stent including interconnection two parts of different sizes, and various outer diameter is big
Small expansible compressed stent be arranged in parallel；The main branch sacculus is longer than side branch sacculus, and both have staggeredly, and side branch length of balloon stops
In the less support section start of external diameter；The side opening of parallel bracket long axis direction is set at support external diameter change, the side opening
Aperture is slightly larger than the caliber of side branch foley's tube.
2. double balloon-stents with side opening of expansible branch vessel according to claim 1, it is characterised in that the side
Marker is additionally provided with branch foley's tube, marker is arranged on the distal end of side branch foley's tube.
3. double balloon-stents with side opening of expansible branch vessel according to claim 2, it is characterised in that described
Marker is the impermeable metal powder grain of the X-ray being arranged on support.
4. double balloon-stents with side opening of expansible branch vessel according to claim 1, it is characterised in that the master
Branch sacculus is identical with side branch sacculus original position.
5. double balloon-stents with side opening of expansible branch vessel according to claim 1, it is characterised in that the side
Tilted upward at Kong Cong great external diameter supports to small external diameter support.
6. double balloon-stents with side opening of expansible branch vessel according to claim 1, it is characterised in that different outer
The expansible compressed stent of footpath size is connected by joining section support, and the side opening is arranged on joining section support.
7. double balloon-stents with side opening of expansible branch vessel according to claim 1, it is characterised in that expansible
Being set in compressed stent prevents the medication coat of ISR.
8. double balloon-stents with side opening of expansible branch vessel according to claim 1, it is characterised in that the ball
Capsule material is polyethylene, and the foley's tube material is silicone tube.
9. double balloon-stents with side opening of the expansible branch vessel according to claim 1-8 any one, its feature
It is, the timbering material is band mesh metal material.
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| CN105919701A (en) * | 2016-05-24 | 2016-09-07 | 江苏大学 | Stepped balloon |
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| US6520988B1 (en) * | 1997-09-24 | 2003-02-18 | Medtronic Ave, Inc. | Endolumenal prosthesis and method of use in bifurcation regions of body lumens |
| US7993389B2 (en) * | 2002-06-13 | 2011-08-09 | Existent Inc. | Guidewire system |
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| CA2392069A1 (en) * | 1999-12-01 | 2001-06-07 | Advanced Cardiovascular Systems, Inc. | Stent and catheter assembly and method for treating bifurcations |
| CN101325928A (en) * | 2005-12-27 | 2008-12-17 | Minvasys公司 | Catheter system for stenting bifurcated vessels |
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| CN104640521A (en) * | 2012-08-20 | 2015-05-20 | 哈利德·艾尔-萨阿敦 | Bifurcated dual-balloon catheter system for bifurcated vessels |
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| CN106166093A (en) | 2016-11-30 |
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