CN106420128B - A kind of bracket positioning system - Google Patents
A kind of bracket positioning system Download PDFInfo
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- CN106420128B CN106420128B CN201611055821.0A CN201611055821A CN106420128B CN 106420128 B CN106420128 B CN 106420128B CN 201611055821 A CN201611055821 A CN 201611055821A CN 106420128 B CN106420128 B CN 106420128B
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- sacculus
- bracket
- positioning
- precise position
- position system
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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
- 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
- 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
- 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
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Vascular Medicine (AREA)
- Cardiology (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The present invention relates to a kind of bracket positioning systems, the specific system is three chambers, two capsule coronary ostium bracket positioning system, the system includes guiding wire, bracket and the stent conveying device for conveying the bracket, the stent conveying device includes hollow conduit, the pre-expansion sacculus positioned at hollow conduit top end part, the positioning device adjacent with pre-expansion sacculus, and wherein positioning device is positioning sacculus.The bracket is set in outside pre-expansion sacculus, and the stent conveying device is movably set in outside the guiding wire.The hollow conduit includes guiding wire chamber, the first passage chamber communicated with pre-expansion sacculus and the second channel chamber communicated with positioning sacculus.
Description
Technical field
The invention belongs to medical domains, are related to a kind of bracket positioning system, are specifically related to one kind and open for coronary artery
Three chambers, the two capsule bracket positioning system of mouth lesion.
Background technique
Ostial lesion is the serious atherosclerotic lesion within span main branch coronary ostium portion 3mm,
Belong to high-risk complex lesions, treated frequently with the mode of minimally invasive intervention, generally requires implantable intravascular bracket.According to where lesion
Position can be divided into aortocoronary-artery opening lesion and non-master artery-Ostial lesion, the former involves a left side
Trunk arteria coronaria dextra or great saphenous vein bridge and aorta intersection, are opening lesions truly；And the latter involves hat
The main branch of shape artery or Main Branches opening, such as descending anterior branch, Circumflex branch and diagonal branch ostium lesion, the spy with bifurcated lesions
Sign, is not belonging to the scope of opening lesion truly.
Coronary artery oral area lesion has certain specificity in dissection and variability is larger, and position is crucial, and intervention is controlled
Treat risk with higher.Bracket, which leaves mouthful lesion locations and cannot then be completely covered by too far, to be open, and leads to patch covering not
Entirely, restenosis rate is very high, needs to be implanted into bracket covering lesion again；It crosses closely, then mount proximal end excessively covers lesion proximal end, prominent
Further conduit is adherent and corresponding treatment in influencing on aorta, and bracket is easily caused to dislocate.Simultaneously as narrow disease
It is closer that displacement leaves mouth, after guiding catheter enters coronary opening in percutaneous coronary access art, blocking is caused to participate in lumen or stimulation
Lesion leads to coronary spasm, in fact it could happen that incarceration, coronary blood flow are stagnated, and such as discovery will cause severe myocardial ischemia, dislike not in time
Property arrhythmia cordis even die suddenly etc. pernicious complication.
Accurate bracket positioning is the main difficulty of coronary artery oral area lesion interventional therapy, and uses routine techniques, special
When not being treatment Left main artery or arteria coronaria dextra oral area lesion, for the effective expansion for guaranteeing bracket, it is de- to generally require guiding catheter
It from coronary artery oral area, while also affecting injection of coronary artery, increasing the unstable of conduit, influence the accurate merging of bracket.
In order to solve the problems, such as that bracket is accurately positioned difficult in opening lesion interventional therapy, domestic and international doctor and scholar are done
Largely researched and developed the pinpoint technology of some brackets and related equipment, mainly have bracket Draw-back technology,
Szabo or " tailfiber " technology and Ostial Pro bracket positioning system.Although above-mentioned technology plays one to the accurate positionin of bracket
Fixed improvement result, but can not simply and effectively solve the problems, such as this, clinically there is an urgent need to a kind of at low cost, operation letters
Support system that is single, safe and effective, can be accurately positioned.
Summary of the invention
The purpose of the present invention is to provide a kind of at low cost, easy to operate, safely and effectively bracket Precise Position Systems, should
System can be used in the positioning at Ostial lesion truly, and bracket is accurately positioned at lesion.
To achieve the goals above, the present invention adopts the following technical scheme:
The present invention provides a kind of bracket Precise Position Systems, including guiding wire, releasable bracket and conveying should
The stent conveying device of bracket, the stent conveying device include hollow conduit, positioned at hollow conduit top end part pre-expansion sacculus,
The positioning device adjacent with pre-expansion sacculus, the bracket are set in outside pre-expansion sacculus, and the stent conveying device movably covers
It is located at outside the guiding wire, wherein positioning device is located at the front end of pre-expansion sacculus, is connected but is not communicated with pre-expansion sacculus.
Further, the positioning device is distensible positioning sacculus, when applying certain pressure, positions balloon expandable,
Its size can be stuck in arterial disease opening.
Further, the stent delivery system includes that first to be connected with pre-expansion sacculus being axially arranged along conduit is led to
Road.
Further, the stent delivery system further includes that second to be connected with positioning sacculus being axially arranged along conduit is led to
Road.
Further, the height after the positioning balloon expandable is greater 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 at a distance from the vertical vertical direction of axial pipe, the positioning ball
The length of capsule refers to the distance along axial pipe direction, and the width of the positioning sacculus refers to and axial pipe horizontal vertical
The distance in direction.Positioning balloon dimension of the invention has comprehensively 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 setting positioning sacculus no more than twice to Dou Ding
Plan range.
Further, the shape of positioning sacculus of the invention include but is not limited to rule 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 the mushroom-shaped bottom is towards the side of Ostial lesion
To bottom is gentle, and top is flat or slightly flat hemispherical.
Further, the positioning sacculus and pre-expansion sacculus both ends are equipped with developing mark, and the developing mark is non-using X-ray
Transmission material is constituted, since the distinct radiography image under X-ray transmission can be obtained, can easily verify that sacculus
With the position of bracket.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 further includes the bushing positioned at hollow conduit periphery.The composition material of the bushing
Material includes but is not limited to the heat such as polycarbonate, polyamide, polysulfones, polyarylate, methacrylate-butylene-styrol copolymer
Plastic resin.
Further, the bushing includes the first bushing and the second bushing；Wherein the first bushing is located at the base portion of hollow conduit,
Including first passage inlet and guiding guidewire port；Second bushing is set to the periphery of hollow conduit, including second channel injection
Mouthful.
Further, the bushing includes guiding guidewire port, first passage inlet, second channel inlet.
In the present invention, one section of protrusion, inside setting and the raised groove to match can be set in the periphery of hollow conduit,
Bushing is moved along trapped orbit, is directed at the side opening in the channel in hollow conduit.
Channel inlet in the present invention is used to import and be discharged the pressor substance of dilating sacculus, such as gas, fluid,
The liquid such as preferably pressurized fluid, including but not limited to physiological saline, vascular contrast agent.Guiding guidewire port will be for that will lead
Line insertion hollow conduit simultaneously keeps it prominent from the top end part of conduit.
Balloon material in the present invention is preferably flexible material, including but 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.
Bracket in the present invention is made of the material with organism adaptability, and the material with organism adaptability includes
(but being not limited to) Nitinol, cochrome, stainless steel, iron, titanium, aluminium, tin, zinc tungstate alloy.In addition, can by bracket utilize with
The time biodegradability macromolecule that decomposes and absorb in vivo constitute, additionally it is possible to be coated medicament in rack surface
(physiological activator).Biodegradability macromolecule is, for example, the copolymer of polylactic acid, polyglycolic acid, lactic acid and glycolic.
Medicament is, for example, anticancer agent, immunosuppressor, antibiotic, immunosuppressor, 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 bracket Precise Position System for the first time, and there are three chamber and two sacculus for system tool, is propping up
Before frame expansion, expansion positioning sacculus, so that positioning sacculus is stuck at lesion arterial ostium, so that bracket be prevented to leave stomatosis change
Position, which is crossed, to be open far from being completely covered by or closely protrudes from aorta excessively.
Bracket Precise Position System of the invention, it is at low cost, easy to operate, safe and effective.
Detailed description of the invention
Fig. 1 shows the overall structure diagram of bracket Precise Position System.
Fig. 2 shows the structural schematic diagram at the sacculus position of bracket Precise Position System.
Fig. 3 shows the structural schematic diagram of the bracket Precise Position System after positioning balloon expandable.
Fig. 4 shows the overall schematic of bracket Precise Position System.
Fig. 5 shows the sectional structure chart of bushing.
In figure, 1, hollow conduit, 11, guiding wire chamber, 12, protrusion, 2, bracket, 3, pre-expansion sacculus, 31, first passage,
32, the first bushing, 321, guidewire port, the 322, first inlet, 323, groove, 4, positioning sacculus, 41, second channel, 42, second
Bushing, the 421, second inlet, 5, bushing, 51, guiding wire mouth, 52, first passage inlet, 53, second channel inlet,
6, guiding wire, 7, developing mark.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples, and following embodiment is merely to illustrate this
It invents rather than limits the scope of the invention.
1 bracket Precise Position System of embodiment
A kind of bracket Precise Position System is as shown in Figure 1, include guiding wire 6, releasable bracket 2 and bracket conveying dress
Set, the stent conveying device have hollow conduit 1, positioned at 1 top end part of hollow conduit pre-expansion sacculus 3, be set to pre-expansion sacculus 3
The positioning sacculus 4 of front end, positioned at the bushing 5 of 6 base portion of hollow conduit.
As shown in Fig. 2, hollow conduit 1 includes guiding wire chamber 11, first passage 31, second channel 41, wherein first is logical
Road 31 is communicated with pre-expansion sacculus 3, and second channel 41 is communicated with positioning sacculus 4.
Bracket 2 be and being tightly engaged into the inner surface of narrow part indwelling in the inner surface to keeping coronary artery pipe
The medical instruments of the open state of chamber, consisting of can expand.Bracket 2 is sticked in pre-expansion sacculus 3, passes through pre-expansion sacculus 3
It expands and expands.
Pre-expansion sacculus 3 is axially configured at hollow conduit 1 along conduit with the state (or contracted state) folded up
Top end part periphery, and can free-extension, for expandable stent to treating coronary artery stenosis position.
Positioning sacculus 4 is located at 3 front end of pre-expansion sacculus, is connected but is not communicated with pre-expansion sacculus 3.It is mushroom-shaped for positioning sacculus 4
For sacculus as shown in figure 3, its bottom is towards the direction of Ostial lesion, bottom is gentle, and top is flat or slightly flat
Hemispherical, when positioning sacculus 4 is positioned, positioning sacculus 4 is highly greater than the diameter of culprit coronary artery opening after expanding,
So that positioning sacculus 4 is stuck at coronary ostium, realizes and be accurately positioned.Comprehensively consider aortic root diameter, active
Diameter, sinus baseplane to sinus top plan range etc. at arteries and veins sinus spacing, coronary opening, 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 be set as 7~10mm more preferably for 5~15mm；
It is highly preferred to be set as 5~50mm, more preferably it is set as 25~40mm.Wherein, it is described positioning sacculus height refer to
The length of the distance of the vertical vertical direction of axial pipe, the positioning sacculus refers to the distance along axial pipe direction, described
The width of positioning sacculus refers at a distance from axial pipe horizontal vertical direction.
Developing mark 7, positioning for device are contained in pre-expansion sacculus 3 and positioning 4 both ends of sacculus.Developing mark 7 is penetrated using X
Line non-transmittive material is constituted, since the distinct radiography image under X-ray transmission can be obtained, can 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.
Bushing 5 includes guiding wire mouth 51, first passage inlet 52 and second channel inlet 53.Guiding wire mouth 51
It is communicated with the guiding wire chamber 11 in hollow conduit 1, guiding wire 6 is inserted into from guiding wire mouth 51, is passed through along guiding wire chamber
It is prominent from the top end part of hollow conduit 1.First passage inlet 52 is communicated with first passage 31, second channel mouth inlet 53 with
Second channel 41 communicates, and inlet is for example, by importing and being discharged the pressurized fluid of sacculus, expansion or retraction sacculus.Pressurized stream
Body is, for example, the liquid such as normal saline solution, vascular contrast agent.
Its application method of the invention is that 1 front end of hollow conduit is first placed in coronary artery under the guidance of guiding wire 6 and is opened
Mouth lesion visually behind lower locating support position, is imported from second channel inlet 53 along second channel 41 by the force (forcing) pump
Pressurized fluid makes to position the expansion of sacculus 4, is stuck in it at coronary ostium；Then it is injected by force (forcing) pump from first passage
Mouth 52 imports pressurized fluid along first passage 31, expands pre-expansion sacculus 3, so as to cause the expansion and plastic deformation of bracket 2, makes
Bracket 2 is tightly engaged into Ostial lesion narrow part.Later, pre-expansion sacculus 3 and positioning sacculus 4 are depressurized, releases branch
Engaging between frame 2 and pre-expansion sacculus 3 separates bracket 2 with pre-expansion sacculus 3, and thus 2 indwelling of bracket is in diseased region, then
Withdraw from the system for having separated bracket 2.
A kind of bracket Precise Position System of embodiment 2
A kind of bracket Precise Position System is as shown in figure 4, include guiding wire 6, releasable bracket 2 and bracket conveying dress
Set, the stent conveying device have hollow conduit 1, positioned at 1 top end part of hollow conduit pre-expansion sacculus 3, be set to pre-expansion sacculus 3
Positioning sacculus 4, the first bushing 32 positioned at 6 base portion of hollow conduit and the second bushing 42 positioned at 6 periphery of hollow conduit of front end.
Hollow conduit 1 includes guiding wire chamber 11, first passage 31, second channel 41, wherein first passage 31 and pre-expansion
Sacculus 3 communicates, and second channel 41 is communicated with positioning sacculus 4, and positioned at the outer surface of hollow conduit, there are also one section of protrusion 12, protrusions 12
Movement for the first bushing 32 provides track.
Bracket 2 be and being tightly engaged into the inner surface of narrow part indwelling in the inner surface to keeping coronary artery pipe
The medical instruments of the open state of chamber consist of the structure that can be expanded.Bracket 2 is sticked in pre-expansion sacculus 3, passes through pre-expansion ball
The expansion of capsule 3 and expand.
Pre-expansion sacculus 3 is axially configured at the top of hollow conduit 1 with the state (or contracted state) of folding along conduit
The periphery of end, and can free-extension, for expandable stent to treating coronary artery stenosis position.
Positioning sacculus 4 is located at 3 front end of pre-expansion sacculus, is connected but is not communicated with pre-expansion sacculus 3.Positioning sacculus 4 is dog bone shape,
One end includes two protrusions, and for convex portion towards sinus bottom direction, the other end is gentle；It positions after sacculus 4 is expanded and is highly greater than disease
Become the diameter at coronary ostium, so that positioning sacculus 4 is stuck at coronary ostium, realizes and be accurately positioned.Positioning
The setting length of balloon dimension is preferably arranged to be less than 20mm, more preferably less than 15mm；Width is preferably arranged to as 5~
15mm is more preferably set as 7~10mm；It is highly preferred to be set as 5~50mm, more preferably it is set as 25~40mm.Wherein,
The height of the positioning sacculus refers to that at a distance from the vertical vertical direction of axial pipe, the length of the positioning sacculus refers to
The width of distance along axial pipe direction, the positioning sacculus refers at a distance from axial pipe horizontal vertical direction.
Developing mark 7, positioning for device are contained in pre-expansion sacculus 3 and positioning 4 both ends of sacculus.Developing mark 7 is penetrated using X
Line non-transmittive material is constituted, since the distinct radiography image under X-ray transmission can be obtained, can 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.
As shown in figure 5, the first bushing 32 includes guidewire port 321, the first inlet 322, groove 323.Guidewire port 321 is in
Guiding wire chamber 11 in empty catheter 1 communicates, and guiding wire 6 is inserted into from guidewire port 321, passes through along guiding wire chamber from hollow and leads
The top end part of pipe 1 is prominent.First inlet 322 is communicated with first passage 31.First inlet 322 is for example led along first passage 31
Enter and be discharged the pressurized fluid of sacculus, expansion or retraction pre-expansion sacculus 3.Pressurized fluid is, for example, that normal saline solution, blood vessel are made
The liquid such as shadow agent.Groove 323 matches with the protrusion 12 on hollow conduit 1, and the first bushing 32 is moved along protrusion 12.
The rear end of positioning sacculus 4 is arranged in second bushing 42, is fixed at the periphery of hollow conduit 1, including the second note
Entrance 421, when conduit enters diseased region along guiding wire 6, by the second inlet 421 along second channel 41 import and
The pressurized fluid of sacculus, expansion or retraction positioning sacculus 4 is discharged.
Its application method of the invention is that 1 front end of hollow conduit is first placed in coronary artery under the guidance of guiding wire 6 and is opened
Mouth lesion is imported along second channel 41 from second channel inlet 421 by force (forcing) pump and is added visually behind lower locating support position
Fluid is pressed, makes to position the expansion of sacculus 4, is stuck in it outside coronary ostium；Then pass through force (forcing) pump from the first inlet 322
Pressurized fluid is imported along first passage 31, pre-expansion sacculus 3 is expanded, so as to cause the expansion and plastic deformation of bracket 2, makes bracket
2 are tightly engaged into Ostial lesion narrow part.Later, by pre-expansion sacculus 3 and positioning sacculus 4 depressurize, release bracket 2 with
Engaging between pre-expansion sacculus 3 separates bracket 2 with pre-expansion sacculus 3, and thus then 2 indwelling of bracket makes to separate in diseased region
The system of bracket 2 is withdrawn from.
The explanation of above-described embodiment is used only to understand technical solution of the present invention.It should be pointed out that for the general of this field
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for logical technical staff, these
Improvement and modification will also be fallen into the protection scope of the claims in the present invention.
Claims (12)
1. a kind of bracket Precise Position System, which is characterized in that including guiding wire, releasable bracket and convey the bracket
Stent conveying device, the stent conveying device include hollow conduit, positioned at hollow conduit top end part pre-expansion sacculus, with it is pre-
Expand the adjacent positioning device of sacculus, the bracket is set in outside pre-expansion sacculus, and the stent conveying device is movably set in
Outside the guiding wire, the positioning device is distensible positioning sacculus, and the height of the positioning sacculus is greater than coronary artery
Opening diameter, shape are dog bone shape, and one end includes two protrusions, and convex portion is towards sinus bottom direction, and the other end is gentle, vertically
In vascular wall, sacculus both ends are equipped with developing mark.
2. bracket Precise Position System according to claim 1, which is characterized in that the stent delivery system includes that edge is led
The first passage being connected with pre-expansion sacculus that pipe is axially arranged.
3. bracket Precise Position System according to claim 1, which is characterized in that the stent delivery system further includes edge
The second channel being connected with positioning sacculus that conduit is axially arranged.
4. bracket Precise Position System according to claim 1-3, which is characterized in that the height of the positioning sacculus
Degree is 5~50mm.
5. bracket Precise Position System according to claim 4, which is characterized in that the height of positioned sacculus be 25~
40mm。
6. bracket Precise Position System according to claim 1-3, which is characterized in that the length of the positioning sacculus
Degree is less than 20mm.
7. bracket Precise Position System according to claim 6, which is characterized in that the length of positioned sacculus is less than
15mm。
8. bracket Precise Position System according to claim 1-3, which is characterized in that the width of the positioning sacculus
Degree is 5~15mm.
9. bracket Precise Position System according to claim 8, which is characterized in that it is described positioning sacculus width be 7~
10mm。
10. bracket Precise Position System according to claim 1-3, which is characterized in that the bracket conveying dress
Setting further includes the bushing for being located at hollow conduit periphery.
11. bracket Precise Position System according to claim 10, which is characterized in that the bushing include the first bushing and
Second bushing；The base portion that wherein the first bushing is located at hollow conduit is connected with first passage, including first passage inlet and leads
Guide wire mouth；The periphery that second bushing is set to hollow conduit is connected with second channel, including second channel inlet.
12. bracket Precise Position System according to claim 11, which is characterized in that the bushing includes guiding conducting wire
Mouth, first passage inlet, second channel inlet.
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| CN201611055821.0A CN106420128B (en) | 2016-11-25 | 2016-11-25 | A kind of bracket positioning system |
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| CN201611055821.0A CN106420128B (en) | 2016-11-25 | 2016-11-25 | A kind of bracket positioning system |
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| CN106420128A CN106420128A (en) | 2017-02-22 |
| CN106420128B true CN106420128B (en) | 2019-06-21 |
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| CN201611055821.0A Active CN106420128B (en) | 2016-11-25 | 2016-11-25 | A kind of bracket positioning system |
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| CN109381780B (en) | 2017-08-02 | 2024-01-26 | 杭州唯强医疗科技有限公司 | Drug coated balloon catheter |
| CN108784763B (en) * | 2017-10-10 | 2020-10-27 | 上海科赐医疗技术有限公司 | Curved balloon catheter retracting device and retracting method thereof |
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| CN202027752U (en) * | 2011-03-02 | 2011-11-09 | 河南中医学院 | Double-balloon catheter for bifurcate blood vessel opening |
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| US7077836B2 (en) * | 2000-07-21 | 2006-07-18 | Vein Rx, Inc. | Methods and apparatus for sclerosing the wall of a varicose vein |
| US7066905B2 (en) * | 2002-11-13 | 2006-06-27 | Squire James C | Method and apparatus for accurate positioning of a dual balloon catheter |
| US20060135985A1 (en) * | 2004-12-21 | 2006-06-22 | Cox Daniel L | Vulnerable plaque modification methods and apparatuses |
| DE102005007574B3 (en) * | 2005-02-18 | 2006-08-31 | Siemens Ag | catheter device |
| US8790396B2 (en) * | 2005-07-27 | 2014-07-29 | Medtronic 3F Therapeutics, Inc. | Methods and systems for cardiac valve delivery |
| CN102038565B (en) * | 2010-12-17 | 2013-08-14 | 北京有色金属研究总院 | Great vascular stent delivery system |
| CN103385773B (en) * | 2013-07-25 | 2015-07-01 | 业聚医疗器械(深圳)有限公司 | Stent delivery system with saccules |
| CN103479453A (en) * | 2013-10-14 | 2014-01-01 | 黄景陶 | Implantation device for precisely locating human body endoluminal stent |
| CN103767811A (en) * | 2014-01-24 | 2014-05-07 | 中国人民解放军第三军医大学第二附属医院 | Accurate positioning support system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202027752U (en) * | 2011-03-02 | 2011-11-09 | 河南中医学院 | Double-balloon catheter for bifurcate blood vessel opening |
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