CN110338949A - A kind of bracket conveying external member - Google Patents
A kind of bracket conveying external member Download PDFInfo
- Publication number
- CN110338949A CN110338949A CN201810280528.7A CN201810280528A CN110338949A CN 110338949 A CN110338949 A CN 110338949A CN 201810280528 A CN201810280528 A CN 201810280528A CN 110338949 A CN110338949 A CN 110338949A
- Authority
- CN
- China
- Prior art keywords
- bracket
- flexible sleeve
- foley
- tube
- external member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000003902 lesion Effects 0.000 claims description 2
- 150000001336 alkenes Chemical class 0.000 claims 1
- 239000004033 plastic Substances 0.000 claims 1
- 229920003023 plastic Polymers 0.000 claims 1
- 230000002308 calcification Effects 0.000 abstract description 15
- 208000004434 Calcinosis Diseases 0.000 description 14
- 238000002601 radiography Methods 0.000 description 10
- 210000004204 blood vessel Anatomy 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 238000013146 percutaneous coronary intervention Methods 0.000 description 6
- 208000031481 Pathologic Constriction Diseases 0.000 description 4
- 238000002583 angiography Methods 0.000 description 4
- 210000004351 coronary vessel Anatomy 0.000 description 4
- 208000037804 stenosis Diseases 0.000 description 4
- 230000036262 stenosis Effects 0.000 description 4
- 229920001477 hydrophilic polymer Polymers 0.000 description 3
- 208000029078 coronary artery disease Diseases 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 201000000057 Coronary Stenosis Diseases 0.000 description 1
- 206010011089 Coronary artery stenosis Diseases 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 229920001617 Vinyon Polymers 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 229920001688 coating polymer Polymers 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002107 myocardial effect Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- A61F2/97—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve the outer sleeve being splittable
-
- 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
- A61F2002/9505—Instruments specially adapted for placement or removal of stents or stent-grafts having retaining means other than an outer sleeve, e.g. male-female connector between stent and instrument
-
- 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
Landscapes
- 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 invention discloses a kind of intravascular stents to convey external member, including coronary guide wire, foley's tube, bracket, guiding catheter, pressure pump, the bracket is mounted in foley's tube outer surface in advance, it further include during transfer gantry to diseased region, cover the flexible sleeve in rack outer surface, the flexible sleeve both ends open；The pressure pump is connect with foley's tube.Flexible casing covers the present invention always during transfer gantry reaches diseased region, can smoothly pass through calcification point, distortion position, realize it is convenient, safe, bracket is quickly delivered to target site.
Description
Technical field
The invention belongs to medical instruments fields, and in particular to a kind of intravascular stent conveying external member.
Background technique
Percutaneous coronary intervention (PCI) is the important link treated in coronary heart disease, to the patient Jing Guo selection by being preced with
Shape artery is implanted into bracket, releases coronary artery stenosis, improves myocardial blood supply oxygen supply, reach alleviate symptom, raising activity tolerance,
It promotes quality of life, extend the purpose of service life.
The surgical procedure following steps of PCI:
A) it punctures, precession vein sheath；
B) radiography seal wire is sent by arterial sheath, is sent into angiography catheter, and radiography along radiography seal wire；
C) angiography catheter is removed along radiography seal wire, imports at the coronary opening that guiding catheter will extremely be treated, removes radiography
Seal wire；
D) it is sent into coronary guide wire along guiding catheter, foley's tube is sent along coronary guide wire at guiding catheter port, is fixed
Foley's tube, rotation seal wire makes it into target vessel, by stenosis, reaches blood vessel distal end；
E) foley's tube is promoted along coronary guide wire, after being positioned at narrowed mid-section, fills up sacculus with pressure pump, carry out predilation；
F) foley's tube is withdrawn from, retains coronary guide wire and guiding catheter, standoff foley's tube will be pre-installed and sent along coronary guide wire
Bracket is opened with pressure pump Filled Balloon to stenosis.
Planning commission PCI network declaration data is defended according to country, the total number of cases of Continental Area Coronary Artery Disease Intervention Treatment in 2015 are
567583, Continental Area PCI sum in 2016 is even more more than 600,000.Among such a large amount of patient, there is about 20%
There are severe calcifications, distortion for patient's coronary artery.During performing the operation to these patient's row PCI, bracket is difficult to be pushed to
Target area, and during pushing bracket, there is a possibility that severe complications such as bracket de- load, is brought very very much not for operation
Just.
For example, guiding catheter only reaches at coronary ostium, and from diseased region, there are also a spacings in operating procedure c)
From for coronary artery, there are the patients of calcification point, if that section of blood vessel between guiding catheter outlet and diseased region
On there are calcification points, or be mingled with calcification point in the thrombus of diseased region, then bracket has been after having gone out guiding catheter, branch posture
It must collide with harder calcification point, due to bracket and hard metal material, it may appear that very stiff and demanding situation, when pushing bracket
It can not also continue to be advanced into diseased region anyway.If blindly promoted, it is likely to result in bracket and deviates from from foley's tube.
Even if Guidezilla elongate catheter is also merely able to extend guiding catheter with elongate catheters such as Guidezilla, make its outlet end
Closer from diseased region but also only close, bracket can come out always from Guidezilla elongate catheter, walk one in the blood vessel
Set a distance gets to diseased region, and this section of distance is likely to encounter calcification point and cause push difficult, if calcification
Point is located at diseased region, and bracket is also difficult to promote and position.Even there are the feelings such as conduit, godet system abjection, the de- load of bracket
Condition.Moreover, the risk for causing interlayer to tear is inserted in Guidezilla elongate catheter coronary artery deeply.
Summary of the invention
In view of the above-mentioned problems, the present invention is intended to provide bracket conveniently, safely, quickly can be delivered to target site by one kind
Conveying external member, be particularly suitable for that there are the patients of coronary artery severe calcification, distortion.
The technical solution that the present invention solves the problems, such as is: a kind of intravascular stent conveying external member, including coronary guide wire, sacculus are led
Pipe, bracket, guiding catheter, pressure pump, the bracket are mounted in foley's tube outer surface in advance, further include in transfer gantry to lesion
During position, the flexible sleeve in rack outer surface, the flexible sleeve both ends open are covered；
The pressure pump is connect with foley's tube.
In above scheme, the soft property that flexible sleeve has due to its own is not in after encountering calcification point
Very stiff and demanding situation, but the deformation of flexible sleeve is utilized, it takes advantage of a situation and slips over calcification point arrival diseased region.It is reached in transfer gantry
Flexible casing covers always during diseased region, will not directly contact with calcification point, when bracket send to diseased region it
Afterwards, flexible sleeve is withdrawn from, then openable bracket.
Preferably, the flexible sleeve is made of hydrophilic polymer.
Preferably, the flexible sleeve is made of vinyon, and outer surface is coated with hydrophilic coating.
Chemical action between hydrophilic coating or hydrophilic polymer and water will form a kind of gel rubber material, this gel rubber material
Extremely low coefficient of friction can be shown, so that flexible sleeve in the blood vessel can be free to advance or retreat.
Further, the flexible sleeve length is greater than or equal to the distance between diseased region and guiding catheter outlet.
Further, the flexible sleeve caliber is less than the caliber of guiding catheter.
Flexible casing covers the present invention always during transfer gantry reaches diseased region, can smoothly pass through calcification
Point, distortion position realize convenience, bracket safely, are quickly delivered to target site.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings.
Fig. 1 is diseased region blood vessel schematic diagram.
Fig. 2 is the schematic diagram for being sent into flexible sleeve step.
Fig. 3 is the schematic diagram for being sent into stent procedures.
Fig. 4 is the schematic diagram for withdrawing from flexible sleeve step.
Fig. 5 is the schematic diagram of Filled Balloon conduit step.
Fig. 6 is the status diagram opened after bracket.
Fig. 7 is flexible sleeve structural schematic diagram.
In figure: 1- coronary guide wire, 2- foley's tube, 3- bracket, 4- pressure pump, 5- diseased region, 6- flexible sleeve, 7- blood
Pipe.
Specific embodiment
As shown in Fig. 1~7, a kind of intravascular stent conveying external member, including coronary guide wire 1, foley's tube 2, bracket 3, guide
Conduit, pressure pump 4.The bracket 3 is mounted in 2 outer surface of foley's tube in advance.
It further include covering the flexible sleeve 6 in 3 outer surface of bracket during transfer gantry 3 to diseased region 5.It is described soft
Property 6 both ends open of casing.6 length of flexible sleeve is greater than or equal to the distance between diseased region 5 and guiding catheter outlet.
6 caliber of flexible sleeve is less than the caliber of guiding catheter.The flexible sleeve 6 is made of hydrophilic polymer.
The pressure pump 4 is connect with foley's tube 2.
Surgical procedure following steps:
A) it punctures, precession vein sheath；
B) radiography seal wire is sent by arterial sheath, is sent into angiography catheter, and radiography along radiography seal wire；
C) angiography catheter is removed along radiography seal wire, imports at the coronary opening that guiding catheter will extremely be treated, removes radiography
Seal wire；
D) it is sent into coronary guide wire 1 along guiding catheter, predilation foley's tube is sent along coronary guide wire 1 to close to guiding catheter port
Place, fixed predilation foley's tube, rotation coronary guide wire 1 makes it into target vessel, by stenosis, reaches blood vessel distal end；
E) predilation foley's tube is promoted along coronary guide wire 1, after being positioned at narrowed mid-section, fills up sacculus with pressure pump 4, carried out
Predilation；
F) predilation foley's tube is withdrawn from, retains coronary guide wire 1 and guiding catheter, is sent into flexible sleeve 6 along coronary guide wire 1,
Until flexible sleeve 6 reaches the diseased region 5 in blood vessel 7 and positions that (during this, if any calcification point is encountered, flexible sleeve 6 becomes
Shape takes advantage of a situation and slips over calcification point), the foley's tube 2 for being preinstalled with bracket 3 is promoted along coronary guide wire 1 then, is come out from guiding catheter
After-poppet 3 reaches stenosis under the protection of flexible sleeve 6, then withdraws from flexible sleeve 6, with 4 Filled Balloon of pressure pump, thus
Open bracket 3.
Claims (5)
1. a kind of intravascular stent conveys external member, including coronary guide wire (1), foley's tube (2), bracket (3), guiding catheter, pressure
It pumps (4), the bracket (3) is mounted in foley's tube (2) outer surface in advance, it is characterised in that: further includes in transfer gantry (3) to lesion
During position (5), the flexible sleeve (6) in bracket (3) outer surface, flexible sleeve (6) both ends open are covered；
The pressure pump (4) connect with foley's tube (2).
2. intravascular stent according to claim 1 conveys external member, it is characterised in that: the flexible sleeve (6) is hydrophilic poly-
Object is closed to be made.
3. intravascular stent according to claim 1 conveys external member, it is characterised in that: the flexible sleeve (6) uses poly- second
Alkene plastics are made, and outer surface is coated with hydrophilic coating.
4. intravascular stent according to claim 1 conveys external member, it is characterised in that: flexible sleeve (6) length is greater than
Or it is equal to the distance between diseased region (5) and guiding catheter outlet.
5. intravascular stent according to claim 1 conveys external member, it is characterised in that: flexible sleeve (6) caliber is less than
The caliber of guiding catheter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810280528.7A CN110338949A (en) | 2018-04-02 | 2018-04-02 | A kind of bracket conveying external member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810280528.7A CN110338949A (en) | 2018-04-02 | 2018-04-02 | A kind of bracket conveying external member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110338949A true CN110338949A (en) | 2019-10-18 |
Family
ID=68172471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810280528.7A Pending CN110338949A (en) | 2018-04-02 | 2018-04-02 | A kind of bracket conveying external member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110338949A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5360401A (en) * | 1993-02-18 | 1994-11-01 | Advanced Cardiovascular Systems, Inc. | Catheter for stent delivery |
| US6379365B1 (en) * | 1999-03-29 | 2002-04-30 | Alexis Diaz | Stent delivery catheter system having grooved shaft |
| US20060089702A1 (en) * | 2004-10-27 | 2006-04-27 | Medtronic Vascular, Inc. | Sleeve to protect ratcheting stent from interference with guide catheter |
| US20120221089A1 (en) * | 2011-02-25 | 2012-08-30 | William Joseph Drasler | Large Vessel Closure Device and Method |
| US20130297003A1 (en) * | 2011-01-13 | 2013-11-07 | Innovia Llc | Endoluminal Drug Applicator and Method of Treating Diseased Vessels of the Body |
| CN209075054U (en) * | 2018-04-02 | 2019-07-09 | 胡信群 | A kind of bracket conveying external member |
-
2018
- 2018-04-02 CN CN201810280528.7A patent/CN110338949A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5360401A (en) * | 1993-02-18 | 1994-11-01 | Advanced Cardiovascular Systems, Inc. | Catheter for stent delivery |
| US6379365B1 (en) * | 1999-03-29 | 2002-04-30 | Alexis Diaz | Stent delivery catheter system having grooved shaft |
| US20060089702A1 (en) * | 2004-10-27 | 2006-04-27 | Medtronic Vascular, Inc. | Sleeve to protect ratcheting stent from interference with guide catheter |
| US20130297003A1 (en) * | 2011-01-13 | 2013-11-07 | Innovia Llc | Endoluminal Drug Applicator and Method of Treating Diseased Vessels of the Body |
| US20120221089A1 (en) * | 2011-02-25 | 2012-08-30 | William Joseph Drasler | Large Vessel Closure Device and Method |
| CN209075054U (en) * | 2018-04-02 | 2019-07-09 | 胡信群 | A kind of bracket conveying external member |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6882275B2 (en) | Sheathless guide catheter assembly | |
| US10974028B2 (en) | Guidewire fixation | |
| US20190046764A1 (en) | Treatment Method Using Catheter Assembly and Catheter Assembly | |
| US5488960A (en) | Coronary sinus catheter introducer system | |
| JP4237410B2 (en) | Guide device and method for inserting and advancing a catheter and guidewire into a patient's blood vessel during an endovascular procedure | |
| CA1294846C (en) | Bail-out catheter | |
| JP2019076526A (en) | Treatment method | |
| US6080140A (en) | Integral cerebro-vascular access system | |
| US20110301684A1 (en) | System and method for performing angiography and stenting | |
| JP2019076527A (en) | Treatment method | |
| JPH11500939A (en) | Braidless guide catheter | |
| JPWO2015146408A1 (en) | Catheter assembly and internal catheter | |
| US8083690B2 (en) | Convertible guidewire system and methods | |
| CN209075054U (en) | A kind of bracket conveying external member | |
| CN206183435U (en) | Tectorial membrane support is used in operation of aorta intermediate layer and conveyor thereof | |
| CN112245761A (en) | Trans-right radial artery III type aortic arch whole brain angiography catheter | |
| CN110338949A (en) | A kind of bracket conveying external member | |
| CN213789513U (en) | Drug balloon conveying system with protection device | |
| US20140121751A1 (en) | Cannula attachment in endoluminal delivery devices | |
| US20210093353A1 (en) | Malleable sheath body | |
| CN213432498U (en) | Multifunctional neurovascular microcatheter | |
| CN212016426U (en) | Serial drug eluting balloon | |
| CN114159675A (en) | Guide wire suite | |
| CN111672009A (en) | Multi-functional coronary artery of radial artery route guides pipe | |
| CN205683382U (en) | A kind of guiding catheter of head end band support air bag |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |