CN204034000U - A kind of blood vessel expansion appliance - Google Patents
A kind of blood vessel expansion appliance Download PDFInfo
- Publication number
- CN204034000U CN204034000U CN201420148472.7U CN201420148472U CN204034000U CN 204034000 U CN204034000 U CN 204034000U CN 201420148472 U CN201420148472 U CN 201420148472U CN 204034000 U CN204034000 U CN 204034000U
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- CN
- China
- Prior art keywords
- sacculus
- balloon
- hole
- conduit
- blood
- 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.)
- Expired - Fee Related
Links
- 210000004204 blood vessel Anatomy 0.000 title claims abstract description 12
- 230000010412 perfusion Effects 0.000 claims abstract description 7
- 230000017531 blood circulation Effects 0.000 abstract description 6
- 230000003902 lesion Effects 0.000 abstract description 3
- 230000002792 vascular Effects 0.000 abstract 1
- 239000008280 blood Substances 0.000 description 12
- 210000004369 blood Anatomy 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- 231100000915 pathological change Toxicity 0.000 description 9
- 230000036285 pathological change Effects 0.000 description 9
- 208000028867 ischemia Diseases 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 230000036772 blood pressure Effects 0.000 description 4
- 230000000916 dilatatory effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 206010008111 Cerebral haemorrhage Diseases 0.000 description 2
- 206010020772 Hypertension Diseases 0.000 description 2
- 206010003119 arrhythmia Diseases 0.000 description 2
- 230000006793 arrhythmia Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 206010007559 Cardiac failure congestive Diseases 0.000 description 1
- 240000004859 Gamochaeta purpurea Species 0.000 description 1
- 206010019280 Heart failures Diseases 0.000 description 1
- 208000001953 Hypotension Diseases 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 206010049418 Sudden Cardiac Death Diseases 0.000 description 1
- 210000000709 aorta Anatomy 0.000 description 1
- 210000001841 basilar artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 230000036543 hypotension Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 210000004165 myocardium Anatomy 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 230000002966 stenotic effect Effects 0.000 description 1
- 208000014221 sudden cardiac arrest Diseases 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 231100000216 vascular lesion Toxicity 0.000 description 1
- 230000024883 vasodilation Effects 0.000 description 1
- 208000003663 ventricular fibrillation Diseases 0.000 description 1
Landscapes
- Media Introduction/Drainage Providing Device (AREA)
Abstract
本实用新型一种实施血管支架扩张手术时不会阻碍血液循环的血管扩张装置，包括导管以及粘接在其外壁的球囊，所述导管内有与所述球囊连通的球囊灌注管所述导管上开有可供导丝穿过的孔，在球囊上有贯通的孔。这样的设计使得球囊折叠时整体体积小，通过病变的能力较好，球囊膨胀后各个部位受力均匀，稳定性高，支撑和扩张病变的能力较好。
The utility model relates to a blood vessel expansion device that does not hinder blood circulation when performing vascular stent expansion operations, including a catheter and a balloon bonded to its outer wall, and a balloon perfusion tube connected to the balloon is provided in the catheter. A hole for the guide wire to pass is opened on the catheter, and a through hole is arranged on the balloon. Such a design makes the overall volume of the balloon smaller when folded, and has a better ability to pass through the lesion. After the balloon is inflated, all parts are evenly stressed, with high stability, and better ability to support and expand the lesion.
Description
Technical field
This utility model relates to medical instruments field, relates in particular to a kind of blood vessel expansion appliance.
Background technology
Current percutaneous intervene operation is extensively carried out, the use of foley's tube and balloon expandable stent is comparatively general, but at the foley's tube used and balloon expandable stent, its sacculus structure is the balloon structure of a fusiformis, usually blocking blood flow is needed when blood vessel dilating stenotic lesion, cause blocking remote organization's ischemia, the organ blood pressure blocking near-end rises sharply, clinical operation to be everlasting in this kind of sacculus operating process of application row coronary stricture pathological changes support when inserting often, there is balloon occlusion distal myocardium ischemia, there is arrhythmia in the lighter, severe one even ventricular fibrillation sudden cardiac arrest patient is dead, be expert at trunk narrow surgical, also need balloon expandable during support implantation surgery, be blood vessel blocking remote organization ischemia at dilating sacculus, there is transitional hypertension in near-end organ such as heart, brain etc., even cerebral hemorrhage, the generations such as congestive heart failure.When Percutantnoeus coronary intervention, balloon expandable pathological changes, can cause blood vessel distal ischemia, so the expansion time all only has 30 seconds to 60 seconds mostly, and often occurs that ST section changes, arrhythmia or hypotension change etc.; Blood pressure to be down to nearly section blood vessel transitional hypertension when 70mmHg mainly prevents support from discharging in addition when dissection of aorta support is inserted and make the generation of generation cerebral hemorrhage and stent migration; But in art, blood pressure is fallen too low, also can cause each histoorgan ischemia of patient, persistent period long even entail dangers to patient vitals.
Application number 201320171828.4 discloses a kind of intravascular stent extension fixture, this device can not circulate by occlude blood in process of expansion although can realize sacculus, but its structure has the shortcoming of following several respects: 1, have sleeve pipe in sacculus outer setting, make this structure too fat to move, volume increases, and is reduced by pathological changes performance; 2, sacculus is in process of expansion, needs bulging from the space of the sleeve pipe of its outside, sacculus outer wall and sleeve pipe is produced and rubs, reduce the stability of sacculus, may occur breaking in expansion process; The shape of the cross section 3, after inflation is not a complete circle, can not expand diseased region completely, may not reach operation object; 4, sacculus needs the resistance overcoming outer sleeve in expansion process, need to be filled with higher air pressure, the material of sacculus is had higher requirement, make whole apparatus cost increase, the financial burden 5 of patient, sacculus are increased the weight of in expansion process because the obstruction of sleeve pipe, the wall unevenness at each position is even, the Hazard ratio broken is higher, 6, the gap of sacculus and blood vessel wall is subject to the restriction of casing pipe hole opening, therefore not there is transmutability, in order to consider that, by volume during pathological changes, the gap of sleeve pipe is not too large, the ability that blood passes through reduces.
Utility model content
For solving the problems of the technologies described above, this utility model is achieved through the following technical solutions:
Sacculus in blood vessel expansion appliance comprises conduit and is bonded in the sacculus of its outer wall, described conduit has the hole can passed for seal wire, has the balloon perfusion catheter be communicated with described sacculus, sacculus has through hole in described conduit.Such design, sacculus overall volume before not expanding is less, improves the ability by pathological changes, it can also scribble hydrophilic coating with reference to prior art, make by property higher; And sacculus need not overcome the friction of outer sleeve in expansion process, and each several part pressurized is even, and risk of rupture is lower, and stability is better; And because all even frictional resistance of pressurized is less, the material of sacculus can adopt existing material, and therefore the cost of manufacture of sacculus can not raise; The sacculus shape of cross section completely that expands is a complete circle, and the ability supporting pathological changes and expansion diseased region is better, and there will not be blind area, and the hole on sacculus progressively can become large along with the expansion of sacculus, what improve blood passes through performance.
Preferably, described hole has two at least and is not connected.Such design makes blood evenly by sacculus, further increases the handling capacity of blood, and blood is more even to the external pressure of sacculus in flow process simultaneously, improves the stability of sacculus further, reduces the risk that it in use breaks.
Preferably, described sacculus contains two or more and mutually splits and the space be communicated with.It is more even that such design can make sacculus fill in expansion process, better expands diseased region, avoid " dog bone " phenomenon.
Preferably, described hole is distributed in the surrounding of described conduit.Inventor draws according to repeatedly hydrodynamic calculations, and when the through hole of sacculus is distributed on around foley's tube, the ratio of the stability by performance and sacculus of blood is optimum.
Preferably, the cross section in described hole is circular.Circular duct reduces the pressure of blood to balloon inflation channel wall in flowing code, also reduces the resistance of conduit wall to blood simultaneously, further improves the stability by performance and sacculus of blood.
This utility model can also be arranged among intravascular stent and just provide a kind of vasodilation support.
the beneficial effects of the utility model
This utility model provides a kind of enforcement can not hinder sanguimotor sacculus when intravascular stent expansion is performed the operation, and overall volume is little time folding, better by the ability of pathological changes, each position uniform force after inflation, stability is high, and the ability of support and expansion pathological changes is better.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of this utility model preferred implementation
Fig. 2 is the cross sectional representation of this utility model preferred implementation
Be labeled as in figure: conduit 1, for the hole 2 that seal wire passes through on conduit, sacculus 3, the through hole 4 on sacculus, seal wire 5, balloon perfusion catheter 6, the through hole 7 on sacculus, conduit 8, sacculus 9, for the hole 10 that seal wire passes through on conduit.
Specific embodiment
Below in conjunction with drawings and Examples, this utility model is further illustrated.
As shown in Figure 1, conduit 1, in it, attachment balloon perfusion catheter 6, makes sacculus 3 expand by conduit 1 injected gas or liquid, for expanding narrow blood vessel pathological changes, makes angiostenosis place caliber become large.Conduit 1 all can see prior art with the design of balloon perfusion catheter 6; Closely bond the sacculus 3 on conduit 1, realize expanding and retraction by conduit 1, sacculus 3 also can see prior art with the bonding way of conduit 1; Sacculus 3 there is the through hole 4 that 4 uniform, the shape of cross section in certain hole is good to be designed to Fig. 2 mesopore 7 circular port, after sacculus 3 expands, blood can from wherein passing through, thus realize blood circulation in whole operation and do not blocked, and uniform circular hole 7 makes blood in the process flow through, sacculus 3 uniform force, reduce its local compression too high, cause the risk of breaking.Conduit 1 also has the hole 2 passed through for seal wire, sacculus 3 is sent to vascular lesion position by this hole 2 along seal wire 5.
Use step: first, along seal wire 5, non-dilatation balloon 3 is delivered to angiostenosis position; Then, pressure injector is connected with the balloon perfusion catheter 6 in conduit 1, pressurization dilating sacculus 3; Through hole 4 on sacculus 3 is also expanded thereupon, forms the passage of blood circulation; If desired install elastic web support, only elastic web need be propped up and be placed on outside sacculus 3, elastic web support struts after expanding by dilating sacculus 3, after having placed elastic support, and pumpback pressure injector, sacculus 3 bounces back; Then, withdrawn from by sacculus along seal wire 5, operation completes.Or repetition above-mentioned steps, expands another diseased region.
Implement in the process of operation whole, patient blood circulation is not blocked, and avoid because of Basilar artery blood circulation or the various complication brought that reduce blood pressure, and medical personnel is simple to operation.
Claims (1)
1. a blood vessel expansion appliance, comprise conduit and be bonded in the sacculus of its outer wall, described conduit has the hole can passed for seal wire, the balloon perfusion catheter be communicated with described sacculus is had in described conduit, it is characterized in that, sacculus has through hole, and described hole cross section is circle and has two at least and be not connected to be distributed in described conduit surrounding, and described sacculus contains two or more to be split and the space be communicated with mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420148472.7U CN204034000U (en) | 2014-03-31 | 2014-03-31 | A kind of blood vessel expansion appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420148472.7U CN204034000U (en) | 2014-03-31 | 2014-03-31 | A kind of blood vessel expansion appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204034000U true CN204034000U (en) | 2014-12-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420148472.7U Expired - Fee Related CN204034000U (en) | 2014-03-31 | 2014-03-31 | A kind of blood vessel expansion appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204034000U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111700659A (en) * | 2020-05-06 | 2020-09-25 | 中国人民解放军陆军军医大学第一附属医院 | intraluminal vascular drainage device |
-
2014
- 2014-03-31 CN CN201420148472.7U patent/CN204034000U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111700659A (en) * | 2020-05-06 | 2020-09-25 | 中国人民解放军陆军军医大学第一附属医院 | intraluminal vascular drainage device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20170331 |