CN111481328A - Balloon-assisted branch vessel stent system - Google Patents
Balloon-assisted branch vessel stent system Download PDFInfo
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- CN111481328A CN111481328A CN202010334879.9A CN202010334879A CN111481328A CN 111481328 A CN111481328 A CN 111481328A CN 202010334879 A CN202010334879 A CN 202010334879A CN 111481328 A CN111481328 A CN 111481328A
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- branch
- sacculus
- balloon
- main
- protection
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- 210000005077 saccule Anatomy 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 2
- 230000002792 vascular Effects 0.000 claims description 2
- 210000004204 blood vessel Anatomy 0.000 abstract description 8
- 208000029078 coronary artery disease Diseases 0.000 abstract description 4
- 238000011282 treatment Methods 0.000 abstract description 3
- 230000003902 lesion Effects 0.000 description 13
- 238000000034 method Methods 0.000 description 3
- 238000013146 percutaneous coronary intervention Methods 0.000 description 3
- 238000011269 treatment regimen Methods 0.000 description 3
- 208000031481 Pathologic Constriction Diseases 0.000 description 2
- 230000003872 anastomosis Effects 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000017531 blood circulation Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000036262 stenosis Effects 0.000 description 2
- 208000037804 stenosis Diseases 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 201000001320 Atherosclerosis Diseases 0.000 description 1
- 201000000057 Coronary Stenosis Diseases 0.000 description 1
- 206010011086 Coronary artery occlusion Diseases 0.000 description 1
- 206010011089 Coronary artery stenosis Diseases 0.000 description 1
- 238000002583 angiography Methods 0.000 description 1
- 238000002586 coronary angiography Methods 0.000 description 1
- 210000004351 coronary vessel Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002695 general anesthesia Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010837 poor prognosis Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002861 ventricular Effects 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/958—Inflatable balloons for placing stents or stent-grafts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/954—Instruments specially adapted for placement or removal of stents or stent-grafts for placing stents or stent-grafts in a bifurcation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
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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 invention discloses a balloon-assisted branch blood vessel stent system, which comprises a main stent balloon body, a main stent balloon catheter body and a main stent body, wherein the main stent body is sleeved on the main stent balloon body, and the length of the main stent balloon body is greater than that of the main stent body, and the balloon-assisted branch blood vessel stent system is characterized in that: the coronary heart disease treatment device is characterized by further comprising a branch protection balloon, the main branch balloon catheter body comprises a first catheter and a second catheter, the branch protection balloon penetrates through the main branch balloon body and corresponds to the branch protection balloon, the branch protection balloon is arranged at an included angle relative to the main branch balloon body, one part of the branch protection balloon is attached to the outer wall of the middle rear section of the main branch balloon body, and the other part of the branch protection balloon extends towards the rear section of the end of the main branch balloon catheter and is integrally arranged with the main branch balloon catheter.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a balloon-assisted branch vessel stent system.
Background
Percutaneous Coronary Intervention (PCI) is a new treatment for coronary heart disease that has developed in the last 30 years. Because of small wound and obvious curative effect, the medicine is more and more widely applied all over the world at present. Without surgical thoracotomy and general anesthesia, doctors puncture the artery through the skin and treat the coronary artery stenosis or occlusion part by X-ray through instruments such as a catheter and the like, so that the lumen of the blood vessel is recovered and the blood flow is unobstructed again.
Currently, most scholars advocate that patients with lesions of the left trunk (L M) who undergo percutaneous coronary intervention should be treated with a left ventricular ejection fraction (L VEF) > 40%, wherein lesions of the left trunk are characterized by a stenosis degree of the coronary artery angiography (greater than or equal to 50% and account for 2.5% -10% of cases of coronary angiography), and the scholars divide lesions of the left trunk into open (proximal 1/3), middle (or body, middle 1/3) and distal (including bifurcation) lesions according to the lesion sites.
According to the research of Marco J, the lesion narrow parts of the left trunk at the opening, the middle section and the far section respectively account for 41.9 percent, 21.1 percent and 37.0 percent; while the study of Park SJ et al showed that the stenosis of the left trunk was 26%, 19% and 55% in the open, mid and distal segments, respectively. Because atherosclerosis is more likely to occur at the bifurcation of a blood vessel due to the increase of blood flow vortex and shear force, further research, establishment and improvement of the operation mode of the left main trunk bifurcation lesion are extremely important.
At present, for treatment strategies of bifurcation lesions, the side branch vessels are firstly classified into those without guide wire protection, those with guide wire protection and those with balloon expansion. The protection of the guide wire and the expansion of the side branch balloon are both used for preventing side branch occlusion during the main branch treatment process. The pre-expansion of the side branch saccule is beneficial to the subsequent guide wire to pass through the meshes of the main stent and enter the side branch blood vessel for final anastomosis expansion. In conjunction with the intervention of the main artery, the stent can be divided into two types, namely a single stent and a double stent.
The single stent technology is that only the main stent is implanted, and the side branch is protected by a side branch guide wire or expanded by a side branch balloon. The double-balloon anastomosis technology is adopted, namely two balloons of a main branch vessel and a side branch vessel are simultaneously expanded, so that plaque is prevented from moving to a side branch, and the risk of branch occlusion is avoided.
The double stent technique is a technique of implanting stents in the main branch and the larger side branch respectively. Including T or TAP (Tang Proprusion), Crush or mini-Crush, Culotte, SKS (Simultaneous Kissing Stent), etc. Although the double-stent has no branch occlusion risk, the technical difficulty is large, and the determination of the strategy in advance is most important. In both the single stent technology and the double stent technology, because the stent part is exposed out of the opening of the left trunk or the stent is poor in adherence to the left trunk, when the guide wire is guided to the bifurcation lesion of the left trunk, the guide wire is easy to penetrate through the stent meshes at the opening or the near end of the left trunk and then reach the main branch of the blood vessel. And then kissing may lead to poor prognosis and even catastrophic consequences.
Disclosure of Invention
In order to overcome the defect of the existing interventional treatment strategy at the bifurcation part of the left trunk, the invention provides a balloon-assisted branch vessel stent system which can facilitate the entrance of a guide wire and optimize the operation for treating the bifurcation part of the left trunk of the coronary heart disease.
The invention is realized by the following technical scheme: the utility model provides a vascular support system of sacculus auxiliary branch, includes main tributary sacculus body, main tributary sacculus pipe body and main tributary support body, and main tributary support body suit is on main tributary sacculus body, the length of main tributary sacculus body is greater than main tributary support body, its characterized in that: still including branch protection sacculus, main tributary sacculus pipe body is including the first pipe and the second pipe that branch pipe run through in main tributary sacculus body and branch protection sacculus corresponds, and branch protection sacculus is the contained angle setting for main tributary sacculus body, branch protection sacculus is partly attached with back end outer wall in the main tributary sacculus body, and other parts extend and set up rather than an organic whole to main tributary sacculus pipe tip back end.
The invention is further provided that the angle between the branch protection balloon and the main branch balloon body is 5-10 degrees.
The invention is further configured such that the main support is a cylindrical mesh structure made of metal.
The invention is further provided that the first catheter is provided with a main branch balloon guide wire cavity and a main branch balloon pressurization cavity corresponding to the main branch balloon body.
The invention is further provided that the second catheter is provided with a branch balloon guide wire cavity and a branch balloon pressurization cavity which correspond to the branch protection balloon, the opening of the branch balloon guide wire cavity is positioned on the side wall of the second catheter and is close to the end part of the branch protection balloon, and the rear part of the branch protection balloon is communicated with the branch balloon pressurization cavity.
The invention is further arranged in such a way that a cavity corresponding to the opening of the branch balloon guide wire cavity forms an included angle relative to the branch balloon guide wire cavity and is arranged in an arc transition way.
The invention has the beneficial effects that:
the invention applies the branch protection saccule to assist the guide wire to enter the bracket to treat the branch lesion of the left trunk, and can further optimize the operation for treating the bifurcation lesion of the left trunk of the coronary heart disease. The interventional therapy strategy operation of the left trunk bifurcation lesion is complex, so the interventional therapy strategy has certain influence on the operation time and the success rate. This application accessible sacculus assists the seal wire to get into the support, avoids the seal wire to get into from outstanding support mesh and causes the support to warp, can shorten operation time, avoids the emergence of complication, improves the operation success rate.
Drawings
Fig. 1 is a schematic sectional structure view of the ballstent system of the present embodiment.
Fig. 2 is a schematic view of a branch guide wire entering a left trunk bifurcation after the branch protection balloon of the ballstent system of the present embodiment is pressurized.
Fig. 3 is a schematic cross-sectional view of a branch guide wire entering a left trunk bifurcation after the branch protection balloon of the ballstent system of the present embodiment is pressurized.
The reference numbers in the figures are as follows: 1-main branch balloon body; 2-branch protection balloon; 3-main branch sacculus pipe body; 31-a first conduit; 32-a second conduit; 32 a-a bifurcated balloon guidewire lumen; 32 b-a branch balloon pressurization lumen; 4-main support body; 5-branch guide wire.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, 2 and 3, a balloon-assisted branch blood vessel stent system comprises a main stent balloon body 1, a main stent balloon catheter body 3 and a main stent body 4, wherein the main stent balloon body 4 is sleeved on the main stent balloon body 1, the main stent balloon body 1 is longer than the main stent balloon body 4, the main stent is a cylindrical mesh structure made of metal, the main stent balloon catheter body 3 further comprises a branch protection balloon 2, the main stent balloon catheter body 3 comprises a first catheter 31 and a second catheter 32, the respective catheters penetrate through the main stent balloon body 1 and the branch protection balloon 2, the first catheter 31 is provided with a main stent balloon guide wire cavity and a main stent balloon pressurization cavity (omitted in the drawing) corresponding to the main stent balloon body 1, the second catheter 32 is provided with a branch balloon guide wire cavity 32a and a branch balloon pressurization cavity 32b corresponding to the branch protection balloon 2, the opening of branch's sacculus wire chamber 32a be located second pipe 32 lateral wall and be close to the tip setting of branch protection sacculus 2, the cavity that branch's sacculus wire chamber 32 a's opening corresponds is 150-160 contained angles and circular arc and excessively sets up for branch's sacculus wire chamber 32a, branch protection sacculus 2 rear portion communicates in branch's sacculus pressurization chamber 32b, branch protection sacculus 2 is contained angle setting for main tributary sacculus body 1, branch protection sacculus 2 partly is attached with back end outer wall in the main tributary sacculus body 1, other parts extend and set up rather than an organic whole to main tributary sacculus catheter tip back end.
In this embodiment, the included angle between the branch protection balloon 2 and the main branch balloon body 1 is 5 to 10 °, and with such a structural arrangement, the end portions of the pressurized branch protection balloon 2 corresponding to the main branch balloon body 1 form a certain included angle, so as to provide guidance for the branch guide wire 5 to branch to the left trunk.
This application is before branch seal wire 5 gets into along branch sacculus seal wire chamber 32a, after main tributary support body 4 expands, restore to original state with main tributary sacculus body 1 pressure release, protect sacculus 2 further accurate adjustment position guide to main tributary blood vessel opening part with the branch, pressurize branch protection sacculus 2 simultaneously, branch seal wire 5 can be followed the opening along branch sacculus seal wire chamber 32a and is stretched out, paste in branch after the pressurization and protect the upper surface entering main tributary support body 4 of sacculus 2, branch after the pressurization and protect sacculus 2 and main tributary sacculus body 1 corresponding tip contained angle A department and stretch into left trunk bifurcation, with the support indeformable in ensureing the art, the efficiency is improved, thereby the operation safety problem in the art of present intervention treatment strategy in branch left trunk bifurcation lesion department has been solved effectively.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the design concept of the present invention should be included in the scope of the present invention.
Claims (6)
1. The utility model provides a vascular support system of sacculus auxiliary branch, includes main tributary sacculus body, main tributary sacculus pipe body and main tributary support body, and main tributary support body suit is on main tributary sacculus body, the length of main tributary sacculus body is greater than main tributary support body, its characterized in that: still including branch protection sacculus, main tributary sacculus pipe body is including the first pipe and the second pipe that branch pipe run through in main tributary sacculus body and branch protection sacculus corresponds, and branch protection sacculus is the contained angle setting for main tributary sacculus body, branch protection sacculus is partly attached with back end outer wall in the main tributary sacculus body, and other parts extend and set up rather than an organic whole to main tributary sacculus pipe tip back end.
2. The balloon-assisted branch vessel stent system according to claim 1, wherein: the included angle between the branch protection saccule and the main branch saccule body is 5-10 degrees.
3. The balloon-assisted branch vessel stent system according to claim 1, wherein: the main support is a cylindrical mesh structure made of metal.
4. The balloon-assisted branch vessel stent system according to claim 1 or 2, wherein: the first catheter is provided with a main branch sacculus wire guide cavity and a main branch sacculus pressurization cavity which correspond to the main branch sacculus body.
5. The balloon-assisted branch vessel stent system according to claim 1 or 2, wherein: the second pipe is provided with branch's sacculus wire chamber and branch's sacculus pressurization chamber that corresponds with branch's protection sacculus, the opening in branch's sacculus wire chamber be located second pipe lateral wall and be close to the tip setting of branch's protection sacculus, branch protection sacculus rear portion communicates in branch's sacculus pressurization chamber.
6. The balloon-assisted branch vessel stent system according to claim 5, wherein: the cavity corresponding to the opening of the branch balloon thread guide cavity forms an included angle relative to the branch balloon thread guide cavity and is arranged in a transition mode in an arc shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010334879.9A CN111481328A (en) | 2020-04-24 | 2020-04-24 | Balloon-assisted branch vessel stent system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010334879.9A CN111481328A (en) | 2020-04-24 | 2020-04-24 | Balloon-assisted branch vessel stent system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111481328A true CN111481328A (en) | 2020-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010334879.9A Pending CN111481328A (en) | 2020-04-24 | 2020-04-24 | Balloon-assisted branch vessel stent system |
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| Country | Link |
|---|---|
| CN (1) | CN111481328A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206342570U (en) * | 2016-08-17 | 2017-07-21 | 苗立夫 | A kind of sacculus protects the mounting system of branch vessel |
| CN110680577A (en) * | 2019-10-23 | 2020-01-14 | 广西中医药大学第一附属医院 | Double-balloon grading expansion blood vessel stent device |
-
2020
- 2020-04-24 CN CN202010334879.9A patent/CN111481328A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206342570U (en) * | 2016-08-17 | 2017-07-21 | 苗立夫 | A kind of sacculus protects the mounting system of branch vessel |
| CN110680577A (en) * | 2019-10-23 | 2020-01-14 | 广西中医药大学第一附属医院 | Double-balloon grading expansion blood vessel stent device |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200804 |
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| RJ01 | Rejection of invention patent application after publication |