CN106491252B - Coronary ostium support Precise Position System - Google Patents
Coronary ostium support Precise Position System Download PDFInfo
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- CN106491252B CN106491252B CN201611066843.7A CN201611066843A CN106491252B CN 106491252 B CN106491252 B CN 106491252B CN 201611066843 A CN201611066843 A CN 201611066843A CN 106491252 B CN106491252 B CN 106491252B
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- sacculus
- support
- precise position
- position system
- positioning
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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
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
-
- 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
- A61F2002/9583—Means for holding the stent on the balloon, e.g. using protrusions, adhesives or an outer sleeve
-
- 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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The present invention relates to a kind of coronary ostium support Precise Position System, the system includes seal wire, support and the stent conveying device for conveying the support, the stent conveying device includes central siphon, it is arranged on the pre-expansion sacculus of central siphon front end and the positioning sacculus positioned at pre-expansion sacculus rear end, valve is provided with expansion chamber between positioning sacculus and pre-expansion sacculus, when carrying out smaller pressure pressurization, positioning sacculus is expanded in advance, is positioned；Continue to pressurize, open valve, pre-expansion sacculus is expanded, so as to be implanted into support.
Description
Technical field
The invention belongs to medical domain, is related to coronary ostium support Precise Position System.
Background technology
Ostial lesion is the serious atherosclerotic lesion within the main branch coronary ostium portion 3mm of span,
Belong to high-risk complex lesions.In clinical practice, most of opening lesion has atherosclerosis and along with downstream
Coronary artery patch, there is the fibrocyte and Calcified atheromatous plaque of densification for opening lesion so that opening lesion blood vessel
Stiffness index and elastical retraction substantially increase, and this results in opening lesion PCI and many problems still be present, such as processing opening
Unique technology requirement, relatively low success rate and the higher follow-up restenosis rate of lesion.
Purpose based on PCI and the position according to where lesion, Ostial lesion can be generally divided into
Aortocoronary-artery opening lesion and non-master artery-Ostial lesion, the former involves Left main artery arteria coronaria dextra
Or great saphenous vein bridge and sustainer intersection, it is opening lesion truly；And the latter involves the main branch of coronary artery or master
Want at branch openings, such as descending anterior branch, Circumflex branch and diagonal branch ostium lesion, there is the feature of bifurcated lesions, be not belonging to really anticipate
The category of opening lesion in justice.
The PCI of opening lesion optionally has simple balloon expanding technology (PTCA), metallic support, Cutting balloon+gold
Belong to the schemes such as support, rotary-cut or turnery+metallic support and drug stent.Because coronary artery oral area lesion has necessarily in dissection
Specificity and variability it is larger, position is crucial, and PCI has higher risk.Support leaves a mouthful lesion locations mistake
It is remote then can not be completely covered by being open, cause patch covering incomplete, restenosis rate is very high, it is necessary to be implanted into support covering disease again
Become；Cross closely, then mount proximal end excessively covers lesion near-end, protrudes from sustainer, and it is adherent and corresponding to influence further conduit
Treatment, and easily cause support dislocation.Simultaneously as stenotic lesion is nearer apart from opening, led in percutaneous coronary access art
After pipe enters coronary opening, cause to block participation tube chamber or stimulate lesion to cause coronary spasm, in fact it could happen that incarceration, coronary blood flow
Stagnate, it is such as timely to find that severe myocardial ischemia, the malignant arrhythmia even pernicious complication of sudden death, therefore realize will be triggered
Being accurately positioned for support has great importance, and this is also the technical barrier of this area.
In order to solve the problems, such as to be open, lesion PCI medium-height trestle is accurately positioned difficulty, and domestic and international doctor and scholar do
The pinpoint technology of some supports and related equipment largely have been researched and developed, has mainly had support sacculus to kiss technology, companion
Row seal wire technology, Ostial Pro supports alignment system, braided support alignment system.Although above-mentioned technology is to the accurate fixed of support
Certain improvement result is played in position, but each technology all has the shortcomings that certain such as support and excessively gos deep into target vessel, operates and be stranded
Hardly possible, cost height etc..Clinically there is an urgent need to a kind of registration cost is low, simple to operate, safe and effective, locating support system.
The content of the invention
An object of the present invention is to provide that a kind of cost is low, simple to operate, safely and effectively support is accurately positioned and is
System.
The second object of the present invention is that providing a kind of support for being used for Ostial lesion truly determines
Position system.
To achieve these goals, the present invention adopts the following technical scheme that：
The invention provides a kind of support Precise Position System, including seal wire, support and convey the support support it is defeated
Device is sent, the stent conveying device includes central siphon, is placed in the pre-expansion sacculus of central siphon front end and positioned at pre-expansion sacculus rear end
Sacculus is positioned, valve is provided between the positioning sacculus and pre-expansion sacculus.Wherein, support is set in outside pre-expansion sacculus, and support is defeated
Device is sent movably to be set in outside the seal wire.
Further, the central siphon includes inner and outer tubes, and inner tube has guidewire lumen, the outside of inner tube and the inner side shape of outer tube
Into injection channel.The constituent material of outer tube is preferably with flexible material, for example, polyethylene, polypropylene, polybutene, second
Alkene-propylene copolymer, ethylene-vinyl acetate copolymer, ionomer or two or more mixtures among them etc. are poly-
The thermoplastics such as alkene, soft PVC resin, polyamide, polyamide elastomer, polyester, polyester elastomer, polyurethane, fluororesin
Property resin, silicon rubber, latex rubber.The constituent material of inner tube can use and outer tube identical material or metal material.Metal
Material is, for example, stainless steel, Ni-Ti alloys.
Further, the valve is pressure sensitive device.
Further, the valve is opened at least six atmospheric pressure.
Further, the height after the positioning balloon expandable is more than the diameter at coronary ostium.
Further, the height of the positioning sacculus is 5~50mm, preferably 25~40mm.
Further, the length of the positioning sacculus is less than 20mm, preferably less than 15mm.
Further, the width of the positioning sacculus is 5~15mm, preferably 7~10mm.
Wherein, the height of the positioning sacculus refers to the distance with the vertical vertical direction of axial pipe, the positioning ball
The length of capsule refers to the distance of duct direction vertically, and the width of the positioning sacculus refers to and axial pipe horizontal vertical
The distance in direction.The positioning balloon dimension of the present invention has considered aortic root diameter, aortic sinus spacing, coronary opening
Locate diameter, sinus baseplane to sinus top plan range etc., sinus baseplane of the height of positioning sacculus no more than twice is set to Dou Ding
Plan range.
Further, the shape of positioning sacculus of the invention include but is not limited to it is regular or it is irregular it is cylindrical, spherical,
It is ellipse, cone, stairstepping, dog bone shape, mushroom-shaped.
Further, the positioning sacculus is mushroom-shaped, and described mushroom-shaped bottom is towards the side of Ostial lesion
To bottom is gentle, and top is flat or slightly flat hemispherical.Position balloon expandable after, mushroom-shaped structure can and coronary sinus
It is in contact.
Further, the positioning sacculus and pre-expansion sacculus both ends are provided with developing mark, and the developing mark is non-using X ray
Transmission material is formed, due to that can obtain the distinct radiography image under X-ray transmission, therefore, it is possible to easily verify that sacculus
With the position of support.X ray non-transmittive material includes but is not limited to the alloy of platinum, gold, tungsten, iridium or these metals.
Further, the stent conveying device also includes the joint positioned at central siphon periphery.The constituent material bag of the joint
Include the thermoplastics such as (but not limited to) makrolon, polyamide, polysulfones, polyarylate, methacrylate-butylene-styrol copolymer
Property resin.
Further, the joint includes guidewire port, inlet.Guidewire port be used for will guiding wire insertion central siphon and make its from
The top ends of conduit protrude.Inlet is used for the pressor substance for importing and discharging dilating sacculus, such as gas, fluid, preferably
For pressure fluid, the including but not limited to liquid such as physiological saline, vascular contrast agent.
Balloon material in the present invention is preferably with flexible material, is included but is not limited to, polyolefin, polyvinyl chloride,
The poly arylidene thio-esters such as the polyester such as polyamide, polyamide elastomer, polyurethane, polyethylene terephthalate, polyphenylene sulfide, silicon rubber
Glue, latex rubber.Polyolefin be, for example, polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer,
Cross-linking type ethylene-vinyl acetate copolymer.
Support in the present invention is made up of the material with organism adaptability, and the material with organism adaptability includes
(but not limited to) Nitinol, cochrome, stainless steel, iron, titanium, aluminium, tin, zinc tungstate alloy.In addition, can by support utilize with
The biodegradability macromolecule that the time decomposes and absorb in vivo to form, additionally it is possible to be coated to medicament in rack surface
(physiological activator).Biodegradability macromolecule is, for example, the copolymer of PLA, polyglycolic acid, lactic acid and glycolic.
Medicament is, for example, anticancer, immunodepressant, antibiotic, immunodepressant, antithrombotic.It can also enough bases in conduit
Portion side configuration flag.
The advantages of the present invention：
The present invention has invented a kind of support Precise Position System of aortocoronary-artery opening lesion first, uses
The present invention, before stent-expansion, expansion positioning sacculus so that positioning sacculus is stuck at lesion arterial ostium, so as to effectively solve
Support of having determined leaves a mouthful lesion locations and crossed far from being completely covered by being open or closely protrude from Supraaortic technical barrier excessively.
The support Precise Position System of the present invention, registration, cost are low, simple to operate, safe and effective.
Brief description of the drawings
Fig. 1 shows the overall structure diagram of support Precise Position System.
Fig. 2 shows the structural representation at the sacculus position of support Precise Position System.
In figure, 1, central siphon, 11, guidewire lumen, 12, inner tube, 13, outer tube, 14, injection channel, 2, support, 3, pre-expansion sacculus,
4th, sacculus is positioned, 5, valve, 6, joint, 61, guidewire port, 62, inlet, 7, seal wire, 8, developing mark.
Specific embodiment
The present invention is further detailed explanation with reference to the accompanying drawings and examples, and following examples are merely to illustrate this
Invention rather than limitation the scope of the present invention.
A kind of support Precise Position System of embodiment 1
The support Precise Position System of embodiments of the present invention is applied to narrow or inaccessible at coronary ostium
Place is improved, as shown in figure 1, the alignment system includes seal wire 7, support 2 and stent conveying device, stent conveying device tool
There are central siphon 1, the pre-expansion sacculus 3 positioned at the front end of central siphon 1, the positioning sacculus 4 for being arranged at the rear end of pre-expansion sacculus 3, be arranged in central siphon 1
Valve 5, the joint 6 of the base portion of central siphon 1 between pre-expansion sacculus 3 and positioning sacculus 4.
Central siphon 1 has inner tube 12 and the outer tube 13 inserted for inner tube 12.The Inner Constitution of inner tube 12 is the seal wire of seal wire
Chamber 11.Outer tube 13 is configured at the outside of inner tube 12, is made up of the space between the inner peripheral surface of outer tube 13 and the outer peripheral face of inner tube 12
Injection channel 14.
Support 2 be by be tightly engaged into the inner surface in narrow and indwelling in the inner surface so as to keeping coronary artery pipe
The medical instruments of the open state of chamber, it can expand, and have plasticity.Support 2 is sticked in the periphery of pre-expansion sacculus 3, passes through
The expansion of pre-expansion sacculus 3 and expand.
Pre-expansion sacculus 3 can free-extension, expand the support 2 for being configured at its periphery, so as to treat coronary artery stenosis portion
Position.
Positioning sacculus 4 is located at the rear end of pre-expansion sacculus 3, is connected with pre-expansion sacculus 3, two sacculus use an expansion path.
Positioning sacculus 4 is mushroom-shaped sacculus, and diameter is more than the diameter of lesion ostium arteriosum after it is expanded, so that positioning sacculus 4 is stuck in
At coronary ostium, realization is accurately positioned.Different according to coronary artery, the setting length for positioning balloon dimension is preferably arranged to
Less than 20mm, more preferably less than 15mm；Width is preferably arranged to for 5~15mm, more preferably be arranged to 7~10mm；Highly
5~50mm is preferably arranged to, is more preferably arranged to 25~40mm.Wherein, the height of the positioning sacculus refers to and axial direction
The distance of the vertical vertical direction of conduit, the length of the positioning sacculus refer to the distance of duct direction vertically, the positioning
The width of sacculus refers to the distance with axial pipe horizontal vertical direction.
Valve 5 is pressure sensitive device, and when pressure is less than 6 atmospheric pressure, positioning sacculus 4 is expanded in advance, when pressurization 6
When more than atmospheric pressure, valve 6 is opened, and then pre-expansion sacculus 3 is expanded, and so as to cause the expansion of support 2 and plastic deformation, makes support
2 combine closely in narrow.
Pre-expansion sacculus 3 and positioning sacculus 4 both ends include developing mark 8, the positioning for device.Developing mark 8 is penetrated using X
Line non-transmittive material is formed, due to that can obtain the distinct radiography image under X-ray transmission, therefore, it is possible to easily verify that
The position of sacculus and support.X ray non-transmittive material includes but is not limited to the alloy of platinum, gold, tungsten, iridium or these metals.
Joint 6 includes guidewire port 61, inlet 62.Guidewire port 61 communicates with the guidewire lumen 11 in central siphon 1, and seal wire 7 is from leading
Silk mouth 61 inserts, and passes through from the top ends of central siphon 1 and protrudes along guidewire lumen 11.Inlet 62 communicates with injection channel 14, inlet
62 for example import and discharge the pressure fluid of sacculus, expansion or retraction sacculus along injection channel 14.Pressure fluid is for example made a living
Manage the liquid such as saline solution, vascular contrast agent.
Its application method of the invention is that the front end of central siphon 1 first is placed in into Ostial lesion under the guiding of seal wire 7
Place, visually behind lower locating support position, imported by the force (forcing) pump from inlet 62 along injection channel 14 and be less than 6 atmospheric pressure
Pressure fluid, positioning sacculus 4 is expanded, it is stuck at coronary ostium；Then proceed to pressurize, open valve 5, make pre-expansion
Sacculus 3 is expanded, and so as to cause the expansion of support 2 and plastic deformation, is tightly engaged into support 2 narrow in Ostial lesion
Portion.Afterwards, pre-expansion sacculus 3 and positioning sacculus 4 are depressurized, releases the engaging between support 2 and pre-expansion sacculus 3, by support 2 and in advance
Expand sacculus 3 to separate, then the thus indwelling of support 2 is withdrawn from the system for having separated support 2 in diseased region.
A kind of support Precise Position System of embodiment 2
The support Precise Position System of embodiments of the present invention is applied to narrow or inaccessible at coronary ostium
Place is improved, as shown in figure 1, the alignment system includes seal wire 7, support 2 and stent conveying device, stent conveying device tool
There are central siphon 1, the pre-expansion sacculus 3 positioned at the front end of central siphon 1, the positioning sacculus 4 for being arranged at the rear end of pre-expansion sacculus 3, be arranged in central siphon 1
Valve 5, the joint 6 of the base portion of central siphon 1 between pre-expansion sacculus 3 and positioning sacculus 4, wherein pre-expansion sacculus 3 and positioning sacculus 4
A passage is shared come expansion of pressurizeing.
Central siphon 1 has inner tube 12 and the outer tube 13 inserted for inner tube 12.The Inner Constitution of inner tube 12 is the seal wire of seal wire
Chamber 11.Outer tube 13 is configured at the outside of inner tube 12, is made up of the space between the inner peripheral surface of outer tube 13 and the outer peripheral face of inner tube 12
Injection channel 14.
Support 2 be by be tightly engaged into the inner surface in narrow and indwelling in the inner surface so as to keeping coronary artery pipe
The medical instruments of the open state of chamber, it can expand, and have plasticity.Support 2 is sticked in the periphery of pre-expansion sacculus 3, passes through
The expansion of pre-expansion sacculus 3 and expand.
Pre-expansion sacculus 3 can free-extension, expand the support 2 for being configured at its periphery, so as to treat coronary artery stenosis portion
Position.
Positioning sacculus 4 is located at the rear end of pre-expansion sacculus 3, is connected with pre-expansion sacculus 3, two sacculus use an expansion path.
Positioning sacculus 4 is irregular oval sacculus, and its one end is flat, the curved structure of the other end, in operation, flat one end towards
The coronary ostium of lesion.The diameter that diameter after sacculus 4 is expanded is more than lesion ostium arteriosum is positioned, so that positioning sacculus 4
It is stuck at coronary ostium, realization is accurately positioned.Different according to coronary artery, the setting length for positioning balloon dimension is preferably set
It is set to and is less than 20mm, more preferably less than 15mm；Width is preferably arranged to for 5~15mm, more preferably be arranged to 7~10mm；
It is highly preferred to be arranged to 5~50mm, more preferably it is arranged to 25~40mm.Wherein, it is described positioning sacculus height refer to
The distance of the vertical vertical direction of axial pipe, the length of the positioning sacculus refers to the distance of duct direction vertically, described
The width of positioning sacculus refers to the distance with axial pipe horizontal vertical direction.
Valve 5 is pressure sensitive device, and when pressure is less than 6 atmospheric pressure, positioning sacculus 4 is expanded in advance, when pressurization is super
When crossing 6 atmospheric pressure, valve 6 is opened, and then pre-expansion sacculus 3 is expanded, and so as to cause the expansion of support 2 and plastic deformation, makes branch
Frame 2 is combined closely in narrow.
Pre-expansion sacculus 3 and positioning sacculus 4 are provided at both ends with developing mark 8, the positioning for device.Developing mark 8 utilizes X
Ray non-transmittive material is formed, due to that can obtain the distinct radiography image under X-ray transmission, therefore, it is possible to easily true
Recognize the position of sacculus and support.X ray non-transmittive material includes but is not limited to the alloy of platinum, gold, tungsten, iridium or these metals.
Joint 6 includes guidewire port 61, inlet 62.Guidewire port 61 communicates with the guidewire lumen 11 in central siphon 1, and seal wire 7 is from leading
Silk mouth 61 inserts, and passes through from the top ends of central siphon 1 and protrudes along guidewire lumen 11.Inlet 62 communicates with injection channel 14, inlet
62 for example import and discharge the pressure fluid of sacculus, expansion or retraction sacculus along injection channel 14.Pressure fluid is for example made a living
Manage the liquid such as saline solution, vascular contrast agent.
Its application method of the invention is that the front end of central siphon 1 first is placed in into Ostial lesion under the guiding of seal wire 7
Place, visually behind lower locating support position, imported by the force (forcing) pump from inlet 62 along injection channel 14 and be less than 6 atmospheric pressure
Pressure fluid, positioning sacculus 4 is expanded, it is stuck at coronary ostium；Then proceed to pressurize, open valve 5, make pre-expansion
Sacculus 3 is expanded, and so as to cause the expansion of support 2 and plastic deformation, is tightly engaged into support 2 narrow in Ostial lesion
Portion.Afterwards, pre-expansion sacculus 3 and positioning sacculus 4 are depressurized, releases the engaging between support 2 and pre-expansion sacculus 3, by support 2 and in advance
Expand sacculus 3 to separate, then the thus indwelling of support 2 is withdrawn from the system for having separated support 2 in diseased region.
The explanation of above-described embodiment is used only to understand technical scheme.It should be pointed out that for the general of this area
For logical technical staff, under the premise without departing from the principles of the invention, some improvement and modification can be carried out to the present invention, these
Improve and modification will be also fallen into the protection domain of the claims in the present invention.
Claims (15)
1. a kind of support Precise Position System, it is characterised in that including seal wire, support and the support conveying dress for conveying the support
Put, the stent conveying device includes central siphon, the pre-expansion sacculus for being placed in central siphon front end and the positioning positioned at pre-expansion sacculus rear end
Sacculus, the height of the positioning sacculus are more than coronary ostium diameter, valve are provided between the positioning sacculus and pre-expansion sacculus
Door.
2. support Precise Position System according to claim 1, it is characterised in that the central siphon includes inner and outer tubes,
Inner tube has guidewire lumen, and the outside of inner tube and the inner side of outer tube form injection channel.
3. support Precise Position System according to claim 1, it is characterised in that the valve is pressure sensitive device.
4. support Precise Position System according to claim 3, it is characterised in that the valve is at least six atmospheric pressure
When open.
5. according to the support Precise Position System described in claim any one of 1-4, it is characterised in that the height of the positioning sacculus
Spend for 5~50mm.
6. support Precise Position System according to claim 5, it is characterised in that the height of the positioning sacculus for 25~
40mm。
7. according to the support Precise Position System described in claim any one of 1-4, it is characterised in that the length of the positioning sacculus
Degree is less than 20mm.
8. support Precise Position System according to claim 7, it is characterised in that the length of the positioning sacculus is less than
15mm。
9. according to the support Precise Position System described in claim any one of 1-4, it is characterised in that the width of the positioning sacculus
Spend for 5~15mm.
10. according to the support Precise Position System described in claim any one of 1-4, it is characterised in that the positioning sacculus
Width is 7-10mm.
11. according to the support Precise Position System described in claim any one of 1-4, it is characterised in that the positioning sacculus bag
Include regular or irregular cylindrical, spherical, oval, conical, stairstepping, dog bone shape, mushroom-shaped.
12. support Precise Position System according to claim 11, it is characterised in that the positioning sacculus is mushroom-shaped.
13. according to the support Precise Position System described in claim any one of 1-4, it is characterised in that the sacculus both ends are set
There is developing mark.
14. according to the support Precise Position System described in claim any one of 1-4, it is characterised in that the support conveying dress
Put the joint also included positioned at central siphon periphery.
15. support Precise Position System according to claim 14, it is characterised in that the joint includes guidewire port, note
Entrance.
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| CN201611066843.7A CN106491252B (en) | 2016-11-25 | 2016-11-25 | Coronary ostium support Precise Position System |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611066843.7A CN106491252B (en) | 2016-11-25 | 2016-11-25 | Coronary ostium support Precise Position System |
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| CN106491252B true CN106491252B (en) | 2018-03-27 |
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| EP0917886A1 (en) * | 1997-10-23 | 1999-05-26 | Schneider (Europe) GmbH | Seal for catheter assembly with dilation and occlusion balloon |
| CN101637416A (en) * | 2008-07-31 | 2010-02-03 | 王于 | Intracavity stent conveying system for pre-implanting saccule at front end |
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