CN106166093A - Double balloon-stent of the band side opening of expansible branch vessel - Google Patents
Double balloon-stent of the band side opening of expansible branch vessel Download PDFInfo
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- CN106166093A CN106166093A CN201610884295.2A CN201610884295A CN106166093A CN 106166093 A CN106166093 A CN 106166093A CN 201610884295 A CN201610884295 A CN 201610884295A CN 106166093 A CN106166093 A CN 106166093A
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- Prior art keywords
- stent
- expansible
- side opening
- sacculus
- branch vessel
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Classifications
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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 double balloon-stent of the band side opening of a kind of expansible branch vessel, and it includes the double balloon structure in expansible compressed stent and expansible compressed stent, and double balloon structure are respectively main sacculus and prop up sacculus with limit；Wherein said expansible compressed stent includes two parts that interconnective external diameter varies in size, but the expansible compressed stent of various outer diameter size be arranged in parallel, including only strutting main vessel portion and strutting main blood vessel and branch vessel part；Additionally a main sacculus is longer than limit and props up sacculus, but both have staggered, while prop up length of balloon to terminate in the support section start that external diameter is less；Arranging the side opening of parallel bracket long axis direction at external diameter change, the caliber of foley's tube is propped up slightly larger than limit in the aperture of described side opening.Also the marker corresponding with side opening position is set at bifurcated balloon far-end.This balloon-stent can expand main 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 angiostenosis (bifurcated lesions)
A kind of expansion apparatus, be particularly related to double balloon-stent of the band side opening of a kind of expansible branch vessel.
Background technology
Balloon-stent is a kind of to be applied to the therapeutic device after arteria coronaria and other angiostenosiss, by being arranged at by sacculus
Inside frame, by micro-wire foley's tube is incorporated at angiostenosis and carries out predilation, be re-introduced into support, finally by injection
Contrast agent makes sacculus expand, and then makes the stent-expansion being arranged on outside sacculus, props narrow blood vessel.This kind of method is a kind of
Wicresoft gets involved operation, is widely popularized because injuring little to patient.
But mostly current balloon-stent is, for Single vessel disease, then to operate complexity for bifurcated lesions, need experience rich
Rich patient completes.While extending operating time, there is the formation of the ridge that support covers not exclusively and deformation of timbering causes
Etc. inferior position.
Although prior art there is also the balloon-stent (200910074735.8) solved containing the narrow problem of branch vessel,
Relate to balloon-stent to pass through to arrange osculum on foley's tube and support, come locating support position by the marker of little port part
Put.There is following inferior position in this patent: 1: the position of side opening opening and direction determine first to send into support, rear sends into that branch is micro-to be led
Silk.2. scaffold can be positioned by side opening, but it cannot be guaranteed that side opening is just to branch openings, needs to adjust further, and
Support rotates extremely difficult after sending into blood vessel.3. branch openings being existed to the case of pathological changes, simple seal wire is by the most tired
Difficulty, enters back into branch by this invention medium-height trestle side opening and operation easier be will be further increased.
The ridge that operation is complicated, support covers not exclusively and deformation of timbering causes is there is for bifurcation coronary artery art formula
The drawback such as formation.Purpose in the present invention is for the deficiency of existing balloon-stent, it is provided that the band of a kind of expansible branch vessel
There are double balloon-stent of side opening.Compared with traditional balloon-stent, this invention application in bifurcated lesions is primarily present following
Advantage: the most simple to operate, the patient with certain PCI experience all can complete；2. simplify the operating procedure of bifurcated lesions, thus contract
Short hand art time-histories, minimizing contrast agent consumption, minimizing patient and patient's lonizing radiation open-assembly time；Support is made to cover the most to a certain extent
Cover more completely and reduce the formation of ridge.
Summary of the invention
For the deficiency overcoming the balloon-stent of prior art to apply in bifurcated lesions, it is an object of the invention to provide one
Plant double balloon-stent of the band side opening of the expansible branch vessel that can solve the problems referred to above.
The purpose of the present invention is achieved through the following technical solutions:
Double balloon-stent of the band side opening of a kind of expansible branch vessel, it includes that the distensible compression with side opening is propped up
Double balloon structure in frame and expansible compressed stent, double balloon structure are respectively main sacculus and prop up sacculus with limit；Main sacculus
The foley's tube that inside one end of sacculus, setting connects is propped up with sacculus with limit；Injection contrast agent in sacculus is set in foley's tube
Passage and by the passage of micro-wire；Described expansible compressed stent includes two that interconnective external diameter varies in size
Dividing, 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
Ingredient, after balloon expandable, two-part diameter is identical；Described master props up sacculus and is longer than limit and props up sacculus, and both have staggered, limit
Prop up length of balloon and terminate in the section start that support external diameter is less；The side of parallel bracket long axis direction is set at support external diameter change
Hole, the caliber of foley's tube is propped up slightly larger than limit in the aperture of described side opening.This kind is arranged can be made by injecting in foley's tube
Expansible compressed stent different for external diameter is expanded by shadow agent, can effectively narrow main blood vessel and branch vessel mouth be supportted
Open；The setting of parallel side opening be based primarily upon following some: 1. be easy to first to send into main and branch's seal wire, then send into along seal wire
Frame；2. for locating support position；3. save the exchange guidewire step in conventional furcation pathological changes technology；Make the most to a certain extent
Support covers more completely and reduces the formation of ridge..The setting that the sacculus that length is different interlocks is based on considered below: 1. save tradition
Bifurcated lesions technology sends into the link of sacculus because of expandable stent mesh；The most directly can expand main and branch vessel and
Complete kiss technology.
Further, described bifurcated balloon conduit is additionally provided with marker.Marker is arranged on the remote of bifurcated balloon conduit
End (consistent with conventional stent sacculus), the marker of bifurcated balloon far-end is corresponding with the position of side opening.After entrance, bifurcated balloon
The marker of far-end is corresponding with branch vessel mouth (far-end of corresponding main major axis) position.The marker of bifurcated balloon far-end sets
Put the position that can see side opening intuitively, when facilitating Stent Implantation, assist support side opening accurately to find the position of branch vessel mouth
Put.
Further, described marker is the metal powder grain of the X-ray impermeable being arranged on foley's tube, the most preferably
For tungsten powder grain or alloy powder particle.
Further, described master props up sacculus and props up sacculus with limit, and original position is identical, all originates at big external diameter support mouth.Phase
Same original position can effectively save length of balloon, makes sacculus obtain the application of maximum magnitude, is expanding main branch vessel
Branch vessel opening part is expanded simultaneously.
Further, described side opening is arranged on the support at external diameter change, and it tilts upward to little at big external diameter support
At external diameter support, this kind of setting makes side opening opening parallel in scaffold, is conducive to sending into main and branch causes rear double sacculus
The entrance of support.
Further, the expansible compressed stent of various outer diameter size is connected by joining section support, setting of joining section support
Put and make it can accommodate double balloon structure, thus effectively main blood vessel and branch vessel mouth are expanded；Described side opening is arranged at
On joining section support.
Further, described balloon material is polyethylene, and described foley's tube material is silica gel tube.This kind is set to sacculus
Conventional setting, is readily obtained and effective.
Further, expansible compressed stent is arranged and prevents the medication coat of restenosis, the setting of medication coat can in case
The only vascular restenosis after expansion, is purged treatment to blocking material while expansion.
Further, described timbering material is band mesh metal material, and wherein preferably metal material is Ti-Ni alloy.
During use, micro-wire is sent to respectively main blood vessel and branch vessel far-end, i.e. MV and SB far-end；Then by double sacculus
Support is sent at bifurcated lesions along two micro-wires；Marker locating support by side opening corresponding on bifurcated balloon；Rear injection
Contrast agent, expands narrow master and props up and branch vessel, adjusts balloon position according to stent-expansion effect, makes stent-expansion reach 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-stent of the band side opening of the expansible branch vessel of the present invention can be effectively to main blood
Pipe and branch vessel mouth are expanded；Simple to operate, the patient with certain PCI experience all can complete；Simplify bifurcated lesions
Operating procedure, thus shorten operation time-histories, reduce contrast agent consumption, minimizing patient and patient's lonizing radiation open-assembly time；Necessarily
Make support cover more completely in degree and reduce the formation of ridge.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention；
Fig. 2 is that overall structure sectional structure of the present invention signal is intended to；
Fig. 3 is supporting structure overall structure schematic diagram of the present invention；
Fig. 4 is supporting structure sectional structure schematic 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 using method flow chart of balloon-stent of the present invention；
Fig. 8 is the balloon-stent of the present invention using method flow chart in provisional-T art formula；
Fig. 9 is the balloon-stent of the present invention using method flow chart in culottes art formula；
In figure, 1, the expansible compressed stent of big external diameter；2, the expansible compressed stent of little external diameter；3, main sacculus；4, limit is propped up
Sacculus；5, foley's tube；51, contrast agent passage；52, micro-wire passage；521, micro-wire；6, side opening；7, joining section support.
Detailed description of the invention
Double balloon-stent of the band side opening of 1 one kinds of expansible branch vessel of embodiment
Double balloon-stent of the band side opening of a kind of expansible branch vessel, it includes expansible compressed stent and expansible pressure
Double balloon structure in contracting support, double balloon structure are respectively main sacculus 3 and prop up sacculus 4 with limit；Main sacculus 3 props up sacculus with limit
The foley's tube 5 connected with sacculus is set inside one end of 4；The radiography injecting contrast agent in sacculus is set in foley's tube 5
Agent passage 51 and by the micro-wire passage 52 of micro-wire 521；Expansible compressed stent includes interconnective external diameter size not
With two parts, and the expansible compressed stent of various outer diameter size be arranged in parallel, the expansible compressed stent of the biggest external diameter 1
Compressed stent 2 expansible with little external diameter, little external diameter compressed stent struts main blood vessel, and the expansible compressed stent of big external diameter 1 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
Arrange and can effectively main blood vessel and branch vessel mouth be expanded.A main sacculus 3 is longer than limit and props up sacculus 4, and original position is identical,
All originating at big external diameter balloon-stent mouth, both have staggered, while prop up sacculus 4 length to terminate in the support section start that external diameter is less；
A main sacculus 3 terminates in the stent ends that external diameter is less；The side opening 6 of parallel bracket long axis direction, side are set at joining section support 7
At the respective branches openings in blood vessels of position, hole 6, the caliber of foley's tube is propped up slightly larger than limit in the aperture of side opening 6, and side opening props up from big external diameter
Tilt upward at frame to little external diameter support.This kind arranges and can once be passed through two foley's tubes 5, by foley's tube 5
Expansible compressed stent different for external diameter is expanded by middle injection contrast agent, can be effectively by narrow main blood vessel and branch
Blood vessel mouth struts；Side opening is arranged on the support at external diameter change, and it arranges and foley's tube can be made to pass through support, will prop up
Frame is enclosed within outside foley's tube, it is possible to achieve front inserting foley's tube inserted by support, and side opening is specially arranged on external diameter and changes
A bigger opening parallel with holder orientation on support at change.
Balloon material is polyethylene, and foley's tube 5 material is silica gel tube.This kind is set to the conventional setting of sacculus, easily
Obtain and effective.Timbering material is band mesh metal material, and wherein preferably metal material is Ti-Ni alloy.
Double balloon-stent of the band side opening of 2 one kinds of expansible branch vessel of embodiment
Double balloon-stent of the band side opening of a kind of expansible branch vessel, it includes expansible compressed stent and expansible pressure
Double balloon structure in contracting support, double balloon structure are respectively main sacculus 3 and prop up sacculus 4 with limit；Main sacculus 3 props up sacculus with limit
The foley's tube 5 connected with sacculus is set inside one end of 4；The radiography injecting contrast agent in sacculus is set in foley's tube 5
Agent passage 51 and by the micro-wire passage 52 of micro-wire 521；Expansible compressed stent includes interconnective external diameter size not
With two parts, and the expansible compressed stent of various outer diameter size be arranged in parallel, the expansible compressed stent of the biggest external diameter 1
Compressed stent 2 expansible with little external diameter, little external diameter compressed stent struts main blood vessel, and the expansible compressed stent of big external diameter 1 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
Arrange and can effectively main blood vessel and branch vessel mouth be expanded.A main sacculus 3 is longer than limit and props up sacculus 4, and original position is identical,
All originating at big external diameter balloon-stent mouth, both have staggered, while prop up sacculus 4 length to terminate in the support section start that external diameter is less；
A main sacculus 3 terminates in the stent ends that external diameter is less；The side opening 6 of parallel bracket long axis direction, side are set at joining section support 7
At the respective branches openings in blood vessels of position, hole 6, the caliber of foley's tube is propped up slightly larger than limit in the aperture of side opening 6, and side opening props up from big external diameter
Tilt upward at frame to little external diameter support.This kind arranges and can once be passed through two foley's tubes 5, by foley's tube 5
Expansible compressed stent different for external diameter is expanded by middle injection contrast agent, can be effectively by narrow main blood vessel and branch
Blood vessel mouth struts；Side opening is arranged on the support at external diameter change, and it arranges and foley's tube can be made to pass through support, will prop up
Frame is enclosed within outside foley's tube, it is possible to achieve front inserting foley's tube inserted by support, and side opening is specially arranged on external diameter and changes
A bigger opening parallel with holder orientation on support at change.
Balloon material is polyethylene, and foley's tube 5 material is silica gel tube.This kind is set to the conventional setting of sacculus, easily
Obtain and effective.Timbering material is band mesh metal material, and wherein preferably metal material is Ti-Ni alloy.
Marker it is additionally provided with on foley's tube.Marker is arranged on the far-end of bifurcated balloon conduit, with branch after entrance
Blood nozzle position is corresponding.Marker arranges the position that can see branch vessel mouth intuitively, when facilitating Stent Implantation, assists
Support accurately finds the position of branch vessel mouth.
Double balloon-stent of the band side opening of 3 one kinds of expansible branch vessel of embodiment
Double balloon-stent of the band side opening of a kind of expansible branch vessel, it includes expansible compressed stent and expansible pressure
Double balloon structure in contracting support, double balloon structure are respectively main sacculus 3 and prop up sacculus 4 with limit；Main sacculus 3 props up sacculus with limit
The foley's tube 5 connected with sacculus is set inside one end of 4；The radiography injecting contrast agent in sacculus is set in foley's tube 5
Agent passage 51 and by the micro-wire passage 52 of micro-wire 521；Expansible compressed stent includes interconnective external diameter size not
With two parts, and the expansible compressed stent of various outer diameter size be arranged in parallel, the expansible compressed stent of the biggest external diameter 1
Compressed stent 2 expansible with little external diameter, little external diameter compressed stent struts main blood vessel, and the expansible compressed stent of big external diameter 1 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
Arrange and can effectively main blood vessel and branch vessel mouth be expanded.A main sacculus 3 is longer than limit and props up sacculus 4, and original position is identical,
All originating at big external diameter balloon-stent mouth, both have staggered, while prop up sacculus 4 length to terminate in the support section start that external diameter is less；
A main sacculus 3 terminates in the stent ends that external diameter is less；The side opening 6 of parallel bracket long axis direction, side are set at joining section support 7
At the respective branches openings in blood vessels of position, hole 6, the caliber of foley's tube is propped up slightly larger than limit in the aperture of side opening 6, and side opening props up from big external diameter
Tilt upward at frame to little external diameter support.This kind arranges and can once be passed through two foley's tubes 5, by foley's tube 5
Expansible compressed stent different for external diameter is expanded by middle injection contrast agent, can be effectively by narrow main blood vessel and branch
Blood vessel mouth struts；Side opening is arranged on the support at external diameter change, and it arranges and foley's tube can be made to pass through support, will prop up
Frame is enclosed within outside foley's tube, it is possible to achieve front inserting foley's tube inserted by support, and side opening is specially arranged on external diameter and changes
A bigger opening parallel with holder orientation on support at change.
Balloon material is polyethylene, and foley's tube 5 material is silica gel tube.This kind is set to the conventional setting of sacculus, easily
Obtain and effective.Timbering material is band mesh metal material, and wherein preferably metal material is Ti-Ni alloy.
Marker it is additionally provided with on foley's tube.Marker arranges branch's far-end at foley's tube, with branch after entrance
Blood nozzle position is corresponding.Marker arranges the position that can see branch vessel mouth intuitively, when facilitating Stent Implantation, assists
Support accurately finds the position of branch vessel mouth.
The medication coat preventing restenosis is set in expansible compressed stent, after the setting of medication coat is possible to prevent expansion
Vascular restenosis, expansion while to blocking material be purged treatment.
The using method of double balloon-stent of the band side opening of the expansible branch vessel of embodiment 4
The using method of double balloon-stent of the band side opening of expansible branch vessel is: first sent to by micro-wire main respectively
Blood vessel and branch vessel far-end, i.e. MV and SB far-end (such as Fig. 7 step 1)；
Then double balloon-stent are sent at bifurcated lesions along two micro-wires, by side opening corresponding on bifurcated balloon
Marker locating support, injects contrast agent afterwards, expands two sacculus and reaches to expand narrow master and prop up the purpose with branch vessel (such as figure
7 steps 2),
Adjust balloon position according to stent-expansion effect, make stent-expansion reach desired effects (such as Fig. 7 step 3)；Extract out
Contrast agent, withdraws from balloon-stent and micro-wire；Complete the use of whole balloon-stent.
The use in provisional-T art formula of the double balloon-stent of the band side opening of the expansible branch vessel of embodiment 5
Method
1) the double balloon-stent of the band side opening of expansible branch vessel using method in provisional-T art formula
For: first micro-wire is sent to respectively main blood vessel and branch vessel far-end, i.e. MV and SB far-end (such as Fig. 8 step 1)；
2) in main branch vessel, introduce sacculus, narrow main branch vessel is first expanded (such as Fig. 8 step 2)；
3) balloon-stent of the present invention (such as Fig. 8 step 3) is used according to the step of embodiment 7；
4) if branch vessel is undesirable, need to process further, then a bifurcated balloon support is set, expand branch vessel
(such as Fig. 8 step 4).
The double balloon-stent of the band side opening of the expansible branch vessel of embodiment 6 using method in culottes art formula
1) the double balloon-stent of the band side opening of expansible branch vessel using method in culottes art formula is: first
Micro-wire is sent to respectively main blood vessel and branch vessel far-end, i.e. MV and SB far-end (such as Fig. 9 step 1)；
2) in main branch vessel, introduce sacculus, narrow main branch vessel is expanded (such as Fig. 9 step 2)；
3) in branch vessel, introduce sacculus, narrow branch vessel is expanded (such as Fig. 9 step 2)；
4) balloon-stent of the present invention (such as Fig. 9 step 4) is used according to the step of embodiment 7；
5) balloon-stent of the present invention is set after again, uses balloon-stent of the present invention, expansion point according to the step of embodiment 7
Branch vessel (such as Fig. 9 step 5).
The explanation of above-described embodiment is only intended to understand the present invention.It should be pointed out that, for those of ordinary skill in the art
For, under the premise without departing from the principles of the invention, it is also possible to the present invention is carried out some improvement, these improve and also will fall into this
In invention scope of the claims.
Claims (9)
1. double balloon-stent for the band side opening of expansible branch vessel, it includes expansible compressed stent and expansible compression
Double balloon structure in support, double balloon structure are respectively main sacculus and prop up sacculus with limit；Main sacculus props up the one of sacculus with limit
The foley's tube connected with sacculus is set inside end；Arrange in foley's tube and in sacculus, inject the passage of contrast agent and by micro-
The passage of seal wire；Described expansible compressed stent includes two parts that interconnective external diameter varies in size, and various outer diameter is big
Little expansible compressed stent be arranged in parallel；Described master props up sacculus and is longer than limit and props up sacculus, and both have staggered, while only prop up length of balloon
In the support section start that external diameter is less；The side opening of parallel bracket long axis direction is set at support external diameter change, described side opening
The caliber of foley's tube is propped up slightly larger than limit in aperture.
Double balloon-stent of the band side opening of expansible branch vessel the most according to claim 1, it is characterised in that described point
It is additionally provided with marker, marker on foley's tube and is arranged on the far-end of bifurcated balloon conduit.
Double balloon-stent of the band side opening of expansible branch vessel the most according to claim 2, it is characterised in that described
Marker is the metal powder grain of the X-ray impermeable being arranged on support.
Double balloon-stent of the band side opening of expansible branch vessel the most according to claim 1, it is characterised in that described master
It is identical that sacculus props up sacculus original position with limit.
Double balloon-stent of the band side opening of expansible branch vessel the most according to claim 1, it is characterised in that described side
Tilt upward to little external diameter support at Kong Cong great external diameter support.
Double balloon-stent of the band side opening of expansible branch vessel the most according to claim 1, it is characterised in that outside difference
The expansible compressed stent of footpath size is connected by joining section support, and described side opening is arranged on joining section support.
Double balloon-stent of the band side opening of expansible branch vessel the most according to claim 1, it is characterised in that expansible
The medication coat preventing restenosis is set in compressed stent.
Double balloon-stent of the band side opening of expansible branch vessel the most according to claim 1, it is characterised in that described ball
Capsule material is polyethylene, and described foley's tube material is silica gel tube.
9. according to double balloon-stent of the band side opening of the expansible branch vessel described in claim 1-8 any one, its feature
Being, described timbering material is band mesh metal material.
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| CN201610884295.2A CN106166093B (en) | 2016-10-10 | 2016-10-10 | Double balloon-stents with side opening of expansible branch vessel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110575605A (en) * | 2019-07-02 | 2019-12-17 | 华中科技大学同济医学院附属协和医院 | Head end double-cavity balloon catheter |
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| CN106166093B (en) | 2017-09-22 |
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