CN106491252A - Coronary ostium support Precise Position System - Google Patents
Coronary ostium support Precise Position System Download PDFInfo
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- CN106491252A CN106491252A CN201611066843.7A CN201611066843A CN106491252A CN 106491252 A CN106491252 A CN 106491252A CN 201611066843 A CN201611066843 A CN 201611066843A CN 106491252 A CN106491252 A CN 106491252A
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- sacculus
- support
- precise position
- positioning
- position system
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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
- A61F2/95—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 conveys the stent conveying device of the support, the stent conveying device includes central siphon, it is arranged on the pre-expansion sacculus of central siphon front end and positioned at the positioning sacculus of pre-expansion sacculus rear end, valve is provided with expansion chamber between positioning sacculus and pre-expansion sacculus, when less pressure pressurization is carried out, positioning sacculus is expanded in advance, is positioned；Continue pressurization, open valve, expand pre-expansion sacculus, 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 span master props up coronary ostium portion 3mm,
Belong to high-risk complex lesions.In clinical practice, most of opening pathological changes have atherosclerosiss and along with downstream
Arteria coronaria speckle, the pathological changes that are open have the fibrocyte and Calcified atheromatous plaque of densification so that opening lesion blood vessel
Stiffness index and elastical retraction substantially increase, and this results in opening pathological changes interventional therapy and still there are problems that a lot, such as processes opening
The unique technology requirement of pathological changes, relatively low success rate and higher follow-up restenosis rate.
Purpose based on interventional therapy and the position being located according to pathological changes, Ostial lesion can be generally divided into
Pathological changes and non-master tremulous pulse-Ostial lesion at aortocoronary-artery opening, the former involves Left main artery right coronary artery
Or great saphenous vein bridge and aorta intersection, it is opening pathological changes truly；And the latter involves coronary artery master or main
Want at branch openings, such as anterior descending branch, Circumflex branch and diagonal branch ostium pathological changes, the feature with bifurcated lesions, be not belonging to real meaning
The category of the opening pathological changes in justice.
The interventional therapy of opening pathological changes optionally has simple balloon expanding technology (PTCA), metal rack, Cutting balloon+gold
The scheme such as category support, rotary-cut or turnery+metal rack and drug stent.Because coronary artery oral area pathological changes have in dissection necessarily
Specificity and variability is larger, position is crucial, and interventional therapy has higher risk.Support leaves a mouthful lesion locations mistake
Remote then can not be completely covered by being open, cause speckle to cover complete, restenosis rate is very high, needs to be implanted into support again and covers disease
Become；Cross closely, then mount proximal end excessively covers pathological changes near-end, protrudes from aorta, affect further conduit adherent and corresponding
Treatment, and easily cause support dislocation.Simultaneously as stenotic lesion is nearer apart from opening, percutaneous coronary is accessed leads in art
After pipe enters coronary opening, blocking is caused to participate in tube chamber or stimulate pathological changes to cause coronary spasm, in fact it could happen that incarceration, coronary blood flow
Stagnate, such as timely discovery will cause severe myocardial ischemia, the malignant arrhythmia even pernicious complication such as sudden death, therefore realize
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 that opening pathological changes interventional therapy medium-height trestle is accurately positioned difficulty, domestic and international doctor and scholar do
Substantial amounts of researched and developed the pinpoint technology of some supports and related equipment, mainly have support sacculus to kiss technology, companion
Row seal wire technology, Ostial Pro support alignment systems, braided support alignment system.Although above-mentioned technology is to the accurately fixed of support
Certain improvement result is played in position, but each technology all haves the shortcomings that certain such as support excessively gos deep into target vessel, operation and is stranded
Hardly possible, cost height etc..Clinically in the urgent need to a kind of registration low cost, simple to operate, safe and effective, locating support system.
Content of the invention
An object of the present invention be to provide a kind of low cost, simple to operate, safely and effectively support be accurately positioned and be
System.
The second object of the present invention is that providing a kind of support for Ostial lesion truly determines
Position system.
To achieve these goals, the present invention is adopted the following technical scheme that：
The invention provides a kind of support Precise Position System, defeated including seal wire, support and the support for conveying the support
Device, the stent conveying device is sent to include central siphon, the pre-expansion sacculus for being placed in central siphon front end and positioned at pre-expansion sacculus rear end
Positioning sacculus, is provided with valve 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 that inner and outer tubes, inner tube have the inner side shape of guidewire lumen, the outside of inner tube and outer tube
Into injection channel.The constituent material of outer tube is preferably has flexible material, for example, polyethylene, polypropylene, polybutene, second
Alkene-propylene copolymer, ethylene-vinyl acetate copolymer, ionomer or the two or more mixture among them etc. gather
The thermoplastics such as alkene, soft PVC resin, polyamide, polyamide elastomer, polyester, polyester elastomer, polyurethane, fluororesin
Property resin, silicone rubber, latex rubber.The constituent material of inner tube can be used and outer tube identical material or metal material.Metal
Material is, for example, rustless steel, Ni-Ti alloys.
Further, the valve is pressure sensitive device.
Further, the valve is opened at least 6 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 place kick
The length of capsule refers to the distance of duct direction vertically, and the width of the positioning sacculus is referred to and axial pipe horizontal vertical
The distance in direction.The positioning sacculus dimension synthesis of the present invention consider aortic root diameter, aortic sinus spacing, coronary opening
Place's diameter, hole baseplane to hole top plan range etc., the height for arranging positioning sacculus are not more than the hole baseplane of twice to Dou Ding
Plan range.
Further, the shape of positioning sacculus of the invention include but is not limited to regular or irregular cylindrical, spherical,
Ellipse, cone, stairstepping, Os Canitis shape, mushroom-shaped.
Further, the positioning sacculus is side of mushroom-shaped, the described mushroom-shaped bottom towards Ostial lesion
To bottom is gentle, and top is flat or slightly flat hemispherical.Positioning balloon expandable after, mushroom-shaped structure can and coronary sinus
Contact.
Further, the positioning sacculus and pre-expansion sacculus two ends are provided with developing mark, and the developing mark is non-using X ray
Transmission material is constituted, due to the radiography image of distinctness being obtained in that under X-ray transmission, therefore, it is possible to easily verify that sacculus
Position with 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) Merlon, 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 are projected.Inlet is used for importing and discharge the pressor substance of dilating sacculus, such as gas, fluid, preferably
For pressure fluid, the including but not limited to liquid such as normal saline, intravascular contrast media.
Balloon material in the present invention is preferably has flexible material, including but not limited to, polyolefin, polrvinyl 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 included with the adaptive material of organism by constituting with the adaptive material of organism
(but not limited to) Nitinol, cochrome, rustless steel, ferrum, titanium, aluminum, stannum, zinc tungstate alloy.In addition, can by support utilize with
That the time decomposes in vivo and the biodegradability macromolecule that absorbs is constituted, additionally it is possible in the coating medicament of rack surface
(biological active substanceies).Biodegradability macromolecule is, for example, the copolymer of polylactic acid, polyglycolic acid, lactic acid and glycolic.
Medicament is, for example, anticarcinogen, immunosuppressant, antibiotic, immunosuppressant, 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 pathological changes at aortocoronary-artery opening first, adopts
The present invention, before stent-expansion, expansion positioning sacculus so that positioning sacculus is stuck at pathological changes arterial ostium, so as to effectively solve
Support of having determined leaves mouthful lesion locations and crosses far from being completely covered by being open or closely protrude from excessively Supraaortic technical barrier.
The support Precise Position System of the present invention, registration, low cost, simple to operate, safe and effective.
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 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 restriction the scope of the present invention.
A kind of 1 support Precise Position System of embodiment
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, the stent conveying device tool
There is central siphon 1, be located at the pre-expansion sacculus 3 of 1 front end of central siphon, be arranged at the positioning sacculus 4 of 3 rear end of pre-expansion sacculus, be arranged in central siphon 1
Valve 5, the joint 7 of 1 base portion of central siphon between pre-expansion sacculus 3 and positioning sacculus 4.
Central siphon 1 has inner tube 12 and the outer tube 13 for the insertion of inner tube 12.Seal wire of the Inner Constitution of inner tube 12 for 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 the inner surface by fluid-tight engagement in narrow and indwelling in the inner surface so as to keeping coronary artery pipe
The medical instruments of the open state in chamber, its can be expanded, with 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 stricture portion
Position.
Positioning sacculus 4 is located at 3 rear end of pre-expansion sacculus, is connected with pre-expansion sacculus 3, and two sacculus use an expansion path.
Positioning sacculus 4 be mushroom-shaped sacculus, its expand after with diameter greater than pathological changes ostium arteriosum diameter so that positioning sacculus 4 be stuck in
At coronary ostium, realize being accurately positioned.Different according to coronary artery, the setting length for positioning balloon dimension is preferably arranged to
It is less than 20mm, more preferably less than 15mm；Width is preferably arranged to for 5～15mm, more preferably be set to 7～10mm；Highly
5～50mm is preferably arranged to, 25～40mm is more preferably set to.Wherein, the height of the positioning sacculus is referred 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, when pressure is less than 6 atmospheric pressure, positions 4 leading expansion of sacculus, 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 and plastic deformation of support 2, makes support
2 combine closely in narrow.
Pre-expansion sacculus 3 and 4 two ends of positioning sacculus include developing mark 8, for the positioning of device.Developing mark 8 is penetrated using X
Line non-transmittive material is constituted, due to the radiography image of distinctness being obtained in that under X-ray transmission, therefore, it is possible to easily verify that
Sacculus and 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.
Joint 6 includes guidewire port 61, inlet 62.Guidewire port 61 is communicated with the guidewire lumen 11 in central siphon 1, and seal wire 7 is from leading
Silk mouth 61 is inserted, and is projected through the top ends from central siphon 1 along guidewire lumen 11.Inlet 62 is communicated with injection channel 14, inlet
62 pressure fluids for for example importing and discharging sacculus along injection channel 14, expansion or retraction sacculus.Pressure fluid is for example made a living
The liquid such as reason saline solution, intravascular contrast media.
Its using method of the invention is that 1 front end of central siphon is placed in Ostial lesion first under the guiding of seal wire 7
Place, visually behind lower locating support position, is imported less than 6 atmospheric pressure along injection channel 14 from inlet 62 by the force (forcing) pump
Pressure fluid, expands positioning sacculus 4 so as to be 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 and plastic deformation of support 2, makes 2 fluid-tight engagement of support narrow in Ostial lesion
Portion.Afterwards, pre-expansion sacculus 3 and positioning sacculus 4 are reduced pressure, release the engaging between support 2 and pre-expansion sacculus 3, by support 2 with pre-
Expand sacculus 3 to separate, then the system for having separated support 2 is withdrawn from by thus 2 indwelling of support in diseased region.
A kind of 2 support Precise Position System of embodiment
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, the stent conveying device tool
There is central siphon 1, be located at the pre-expansion sacculus 3 of 1 front end of central siphon, be arranged at the positioning sacculus 4 of 3 rear end of pre-expansion sacculus, be arranged in central siphon 1
Valve 5, the joint 7 of 1 base portion of central siphon 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 for the insertion of inner tube 12.Seal wire of the Inner Constitution of inner tube 12 for 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 the inner surface by fluid-tight engagement in narrow and indwelling in the inner surface so as to keeping coronary artery pipe
The medical instruments of the open state in chamber, its can be expanded, with 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 stricture portion
Position.
Positioning sacculus 4 is located at 3 rear end of pre-expansion sacculus, is connected with pre-expansion sacculus 3, and 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 pathological changes.The diameter with diameter greater than pathological changes ostium arteriosum after sacculus 4 is expanded is positioned, so that positioning sacculus 4
It is stuck at coronary ostium, realizes being accurately positioned.Different according to coronary artery, the setting length for positioning balloon dimension preferably sets
It is set to less than 20mm, more preferably less than 15mm；Width is preferably arranged to for 5～15mm, more preferably be set to 7～10mm；
Highly preferred be set to 5～50mm, be more preferably set to 25～40mm.Wherein, described positioning sacculus height refer to
The distance of the vertical vertical direction of axial pipe, the length of the positioning sacculus refer 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, when pressure is less than 6 atmospheric pressure, positions 4 leading expansion of sacculus, when pressurization surpasses
When crossing 6 atmospheric pressure, valve 6 is opened, and then pre-expansion sacculus 3 is expanded, and so as to cause the expansion and plastic deformation of support 2, makes to prop up
Frame 2 is combined closely in narrow.
Pre-expansion sacculus 3 and 4 two ends of positioning sacculus are provided with developing mark 8, for the positioning of device.Developing mark 8 utilizes X
Ray non-transmittive material is constituted, due to the radiography image of distinctness being obtained in that 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 is communicated with the guidewire lumen 11 in central siphon 1, and seal wire 7 is from leading
Silk mouth 61 is inserted, and is projected through the top ends from central siphon 1 along guidewire lumen 11.Inlet 62 is communicated with injection channel 14, inlet
62 pressure fluids for for example importing and discharging sacculus along injection channel 14, expansion or retraction sacculus.Pressure fluid is for example made a living
The liquid such as reason saline solution, intravascular contrast media.
Its using method of the invention is that 1 front end of central siphon is placed in Ostial lesion first under the guiding of seal wire 7
Place, visually behind lower locating support position, is imported less than 6 atmospheric pressure along injection channel 14 from inlet 62 by the force (forcing) pump
Pressure fluid, expands positioning sacculus 4 so as to be 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 and plastic deformation of support 2, makes 2 fluid-tight engagement of support narrow in Ostial lesion
Portion.Afterwards, pre-expansion sacculus 3 and positioning sacculus 4 are reduced pressure, release the engaging between support 2 and pre-expansion sacculus 3, by support 2 with pre-
Expand sacculus 3 to separate, then the system for having separated support 2 is withdrawn from by thus 2 indwelling of support in diseased region.
The explanation of above-described embodiment is used only to understand technical scheme.It should be pointed out that general for 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 in the protection domain of the claims in the present invention.
Claims (13)
1. a kind of support Precise Position System, it is characterised in that including seal wire, support and convey the support conveying dress of 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, is provided with valve between the positioning sacculus and pre-expansion sacculus.
2. support Precise Position System according to claim 1, it is characterised in that the central siphon includes inner and outer tubes,
The inner side that inner tube has guidewire lumen, the outside of inner tube and outer tube forms 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 6 atmospheric pressure
When open.
5. support Precise Position System according to claim 1, it is characterised in that the height of the positioning sacculus is more than hat
Shape arterial ostium diameter.
6. the support Precise Position System according to any one of claim 1-5, it is characterised in that the institute of the positioning sacculus
The height for stating positioning sacculus is 5～50mm, preferably 25～40mm.
7. the support Precise Position System according to any one of claim 1-5, it is characterised in that the length of the positioning sacculus
Degree is less than 20mm, preferably less than 15mm.
8. the support Precise Position System according to any one of claim 1-5, it is characterised in that the width of the positioning sacculus
Spend for 5～15mm, preferably 7～10mm.
9. the support Precise Position System according to any one of claim 1-5, it is characterised in that the positioning sacculus includes
Regular or irregular cylindrical, spherical, oval, conical, stairstepping, Os Canitis shape, mushroom-shaped.
10. the support Precise Position System according to any one of claim 9, it is characterised in that the positioning sacculus is mushroom
Mushroom type.
The 11. support Precise Position Systems according to any one of claim 1-5, it is characterised in that the sacculus two ends set
There is developing mark.
The 12. support Precise Position Systems according to any one of claim 1-5, it is characterised in that the support conveying dress
Put the joint also included positioned at central siphon periphery.
13. support Precise Position Systems according to claim 12, it is characterised in that the joint includes guidewire port, note
Entrance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
|---|---|---|---|
| CN201611066843.7A CN106491252B (en) | 2016-11-25 | 2016-11-25 | Coronary ostium support Precise Position System |
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| CN106491252A true CN106491252A (en) | 2017-03-15 |
| CN106491252B CN106491252B (en) | 2018-03-27 |
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| US20060189928A1 (en) * | 2005-02-18 | 2006-08-24 | Siemens Aktiengesellschaft | Catheter device |
| 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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