CN102813995B - Balloon microcatheter for treating cerebrovascular stenosis - Google Patents
Balloon microcatheter for treating cerebrovascular stenosis Download PDFInfo
- Publication number
- CN102813995B CN102813995B CN201210314624.1A CN201210314624A CN102813995B CN 102813995 B CN102813995 B CN 102813995B CN 201210314624 A CN201210314624 A CN 201210314624A CN 102813995 B CN102813995 B CN 102813995B
- Authority
- CN
- China
- Prior art keywords
- balloon
- microtubular
- microcatheter
- sacculus
- tube
- 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.)
- Active
Links
Images
Abstract
The invention discloses a novel balloon microcatheter for treating cerebrovascular stenosis. The novel balloon microcatheter is combined by a balloon catheter and a microcatheter. The balloon catheter is sleeved outside the microcatheter. An external cavity is formed by the inner wall of the balloon catheter and the outer wall of the microcatheter. A balloon is arranged at the front end of the outer cavity. The microcatheter is provided with balloon developing rings at two ends corresponding to the balloon. A tip developing ring is disposed at the tip of the microcatheter. The inner cavity of the microcatheter is used as a conveying system for a support. During operation, a doctor uses the balloon on the balloon catheter to pre-expand vascular stenosis and then withdraws the balloon, a balloon expansion support or a self-expandable support disconnects from the inner cavity of the microcatheter along with withdrawal of the balloon (the balloon expansion support needs to pushed forward slightly), and the balloon expansion support or the self-expandable support expands and fixes at the vascular stenosis to expand the vessel. By the novel balloon microcatheter, exchanging times of medical instruments inside a patient's body during operation can be reduced, and possibility of complications of the patient is lowered.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, more particularly, the present invention relates to a kind of novel sacculus microtubular that is used for the treatment of cerebrovascular stenosis.
Background technology
Stent can be used for the treatment of cerebrovascular stenosis.Cerebrovascular stenosis is Important cause of disease and the risk factor that causes ischemic cerebrovascular.Cerebrovascular stenosis makes to reduce through cerebrovascular blood, and brain cell will ischemia death.Stent normally first carries out predilation with foley's tube, then withdraw from predilation foley's tube, with a support, be close on another balloon dilatation catheter again, when extraneous pressure control device pressurizes to the sacculus in support, support is opened along blood vessel wall, then support is fixed on and struts position, distends the blood vessels.Certainly, if use is self-expandable stent, do not need to rely on the pressurization of extraneous pressure control device to sacculus in support, support just can strut under certain condition automatically.
In such operation, conventionally use at present foley's tube to carry out predilation and use microtubular as the transfer passage of stent delivery system.In operation process, doctor need to withdraw from predilation foley's tube in patient body before transfer gantry, for microtubular enters vacating space in patient body.In other words, do not have temporarily in the market a kind of medical apparatus and instruments of getting involved class that predilation foley's tube and microtubular are combined into an integral body and realize predilation and support are carried and settled at one go.Clinical experience shows, similarly medical apparatus and instruments exchange times in patient body is more, more easily causes that patient's blood vessel injury forms the complication such as hemorrhage or ischemia.In view of the limitation of the support method for implantation on present market in clinical use, need to invent more preferably support method for implantation, invention sacculus microtubular is to reduce medical apparatus and instruments exchange times in patient body.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of novel sacculus microtubular that is used for the treatment of cerebrovascular stenosis is provided.
The object of the invention is to be achieved through the following technical solutions:
A novel sacculus microtubular that is used for the treatment of cerebrovascular stenosis, comprises and is provided with the microtubular of inner chamber, the handle that is provided with the foley's tube of exocoel and has respectively two separate chamber.Described foley's tube is enclosed within the outside of microtubular, its inwall and microtubular outer wall form an exocoel, the front end of described exocoel is provided with sacculus, described microtubular is provided with sacculus developing ring, at place, tip, is provided with most advanced and sophisticated developing ring at the two ends of corresponding sacculus, the inner chamber of described microtubular is as the induction system of support.
Object of the present invention can also be achieved through the following technical solutions:
Described foley's tube and sacculus outer surface are provided with hydrophilic coating.The skin of described microtubular is that macromolecular material pebax, intermediate layer are that platinumiridio or rustless steel webmaster, internal layer are macromolecular material politef; The foley's tube of exocoel consists of macromolecular material pebax; Handle consists of macromolecular material polycarbonate.Described foley's tube and the rear end of microtubular are handle, and the separate chamber of described foley's tube handle connects extraneous pressure control device, and linearly, the handle of described foley's tube and the handle of microtubular are sharp shape oblique angle for the handle of described microtubular and body.
Compared with prior art, the present invention has following beneficial effect:
Foley's tube and microtubular are united two into one, make balloon expandable stent or self-expandable stent settle the angiostenosis place of implant patient at one go, reduce the exchange times of medical apparatus and instruments in patient body in operation, thereby reduce the probability that complications of patients undergoing occurs.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of sacculus microtubular;
Fig. 2 is angiostenosis place schematic diagram;
Fig. 3 sacculus microtubular carries out balloon pre-dilation schematic diagram at angiostenosis place;
Fig. 4 is that sacculus microtubular is withdrawn from original angiostenosis place schematic diagram;
Fig. 5 is that balloon expandable stent is delivered to original angiostenosis place schematic diagram by sacculus microtubular inner chamber;
Fig. 6 is that balloon expandable stent is softened and be fixed on original angiostenosis place schematic diagram;
Fig. 7 is that self-expandable stent does not strut in microtubular, and in original angiostenosis place schematic diagram;
Fig. 8 is that self-expandable stent struts and be fixed on original angiostenosis place schematic diagram automatically.
In figure: foley's tube 1, macromolecular material pebax2, platinumiridio or rustless steel webmaster 3, macromolecular material politef 4, handle 5, sacculus developing ring 6, most advanced and sophisticated developing ring 7, sacculus 8, balloon expandable stent 9, hydrophilic coating 10, angiostenosis place 11, self-expandable stent 12, exocoel 13, inner chamber 14, connection extraneous pressure control device 15.
The specific embodiment
Below in conjunction with drawings and Examples, substance of the present invention is described in further detail:
Embodiment mono-: the mode of balloon expandable stent, as shown in Figures 1 to 6, a kind of novel sacculus microtubular that foley's tube and microtubular are united two into one, comprise the foley's tube 1 that forms exocoel 13, the microtubular being formed by macromolecular material pebax2, platinumiridio or rustless steel webmaster 3 and macromolecular material politef 4, there are 5, two separate chamber of handle of two separate chamber not communicate, but difference communication with cavity 14 and exocoel 13.Two sacculus developing rings 6, most advanced and sophisticated developing ring 7 and sacculus 8.Foley's tube 1 and sacculus outer surface cover hydrophilic coating 10.The sacculus 8 intravasation stenosis 11 of sacculus microtubular, hydrophilic coating 10 can improve catheter outer surface greasy property, and sacculus developing ring 6 and most advanced and sophisticated developing ring 7 can help the position of the accurate positioning catheter of doctor in patient body.The exocoel 13 of sacculus microtubular is owing to being subject to the pressurization of extraneous pressure control device 15, and the sacculus 8 in distal end of catheter is expanded, thereby angiostenosis place 11 is strutted.Then, owing to being subject to the negative pressure of extraneous pressure control device 15, sacculus 8 is taken out flat, and withdraws and exit original angiostenosis place 11.Now, whole sacculus microtubular does not need to withdraw from patient body.Direct inner chamber 14 forward impelling from sacculus microtubular of balloon expandable stent 9, until balloon expandable stent 9 arrives original angiostenosis places 11.Utilize the pressurization of extraneous pressure control device 15 to make balloon expandable stent 9 strut and be fixed on original angiostenosis place 11.Finally, sacculus microtubular is withdrawn from patient body, balloon expandable stent 9 will be stayed original angiostenosis place 11 to keep blood vessel fully unimpeded.
Embodiment bis-: the mode of self-expandable stent expansion, and as shown in Figure 7, self-expandable stent 12 does not strut in microtubular, and in original angiostenosis place 11; As shown in Figure 8, self-expandable stent 12 struts and is fixed on original angiostenosis place 11 automatically.Utilize the process and the similar process that uses balloon expandable stent 9 treatment cerebrovascular stenosis of self-expandable stent 12 dilation therapy cerebrovascular stenosis.Difference is that the expansion of balloon expandable stent 9 need to rely on the pressurization of sacculus in 15 pairs of supports of extraneous pressure control device, and self-expandable stent 12 is along with the short distance of sacculus microtubular withdraws, can be when disengaging be enclosed within the microtubular of its outside automatic expansion, do not need to rely on the pressurization of sacculus in 15 pairs of supports of extraneous pressure control device.Therefore self-expandable stent 12 (namely has to depart from before the microtubular that is enclosed within its outside) before release, must not arrive in advance original angiostenosis place 11, then microtubular withdraws, self-expandable stent 12 automatic expansions.
Claims (1)
1. a sacculus microtubular that is used for the treatment of cerebrovascular stenosis, comprise that being provided with the microtubular of inner chamber, the foley's tube that is provided with exocoel and two separate chamber is respectively provided with respectively one handle, it is characterized in that: described foley's tube is enclosed within the outside of microtubular, the inwall of described foley's tube and microtubular outer wall form an exocoel, the front end of described exocoel is provided with sacculus, described microtubular is provided with sacculus developing ring, at place, tip, is provided with most advanced and sophisticated developing ring at the two ends of corresponding sacculus, the inner chamber of described microtubular is as the induction system of support; Described foley's tube and sacculus outer surface are provided with hydrophilic coating; The skin of described microtubular is that macromolecular material pebax, intermediate layer are that platinumiridio or rustless steel webmaster, internal layer are macromolecular material politef; The foley's tube of exocoel consists of macromolecular material pebax; Handle consists of macromolecular material polycarbonate; Described foley's tube and the rear end of microtubular are handle, and the separate chamber of the handle of described foley's tube connects extraneous pressure control device, and linearly, the handle of described foley's tube and the handle of microtubular are sharp shape oblique angle for the handle of described microtubular and body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210314624.1A CN102813995B (en) | 2012-08-30 | 2012-08-30 | Balloon microcatheter for treating cerebrovascular stenosis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210314624.1A CN102813995B (en) | 2012-08-30 | 2012-08-30 | Balloon microcatheter for treating cerebrovascular stenosis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102813995A CN102813995A (en) | 2012-12-12 |
| CN102813995B true CN102813995B (en) | 2014-03-12 |
Family
ID=47298667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210314624.1A Active CN102813995B (en) | 2012-08-30 | 2012-08-30 | Balloon microcatheter for treating cerebrovascular stenosis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102813995B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107184296B (en) * | 2016-03-14 | 2019-11-22 | 上海微创医疗器械（集团）有限公司 | Sacculus, bracket conveyer and stent delivery system |
| CN106730254A (en) * | 2016-11-17 | 2017-05-31 | 张宏兵 | Reducing puncture drainage tube |
| CN108261601A (en) * | 2018-02-09 | 2018-07-10 | 南京鼓楼医院 | A kind of arterial sheath |
| CN108939257B (en) * | 2018-04-11 | 2024-05-03 | 上海长海医院 | Balloon microcatheter with releasable head end |
| CN113398442A (en) * | 2021-07-28 | 2021-09-17 | 茂名市人民医院 | Neurovascular semi-compliance balloon dilatation micro-catheter |
| CN113616397A (en) * | 2021-08-27 | 2021-11-09 | 苏州中天医疗器械科技有限公司 | Integral exchange type balloon stent mounting device and stent mounting method |
| CN113599037A (en) * | 2021-08-27 | 2021-11-05 | 苏州中天医疗器械科技有限公司 | Quick exchange type balloon stent mounting device and stent mounting method |
| CN114522329A (en) * | 2022-04-25 | 2022-05-24 | 天津市环湖医院 | Neurovascular balloon dilatation catheter for pushing intracranial thrombus removal stent |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101045175B (en) * | 2006-03-29 | 2012-07-04 | 微创医疗器械(上海)有限公司 | Double-layered balloon catheter |
| CN101732790A (en) * | 2008-11-06 | 2010-06-16 | 浙江科惠医疗器械有限公司 | Minimal invasive centrum elastic capsule |
| CN201350278Y (en) * | 2009-02-25 | 2009-11-25 | 赛诺医疗科学技术有限公司 | Improved peripheral vascular balloon dilatation catheter |
| CN102488577B (en) * | 2011-12-14 | 2014-12-24 | 湖南埃普特医疗器械有限公司 | Intravascular guiding wire positioning device and manufacturing method thereof |
| CN202740600U (en) * | 2012-08-30 | 2013-02-20 | 加奇生物科技(上海)有限公司 | Novel saccule microtubule for curing cerebrovascular stenosis |
-
2012
- 2012-08-30 CN CN201210314624.1A patent/CN102813995B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102813995A (en) | 2012-12-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102813995B (en) | Balloon microcatheter for treating cerebrovascular stenosis | |
| CN206424184U (en) | A kind of branch vessel protective cradle system | |
| CN102462565A (en) | Recyclable and adjustable interventional stent for constricting blood vessels | |
| JPH10127791A (en) | Charging and centering device for blood vessel radiotherapy source | |
| CN104853800B (en) | Foley's tube with transient state radiopaque label | |
| CN202740600U (en) | Novel saccule microtubule for curing cerebrovascular stenosis | |
| CN103230640A (en) | Medicine-carrying cutting balloon dilating catheter | |
| CN210521532U (en) | Sacculus expansion tube for hepatobiliary pancreas spleen surgery | |
| CN205198665U (en) | Sacculus expansion pipe of double -deck hypo pipe | |
| CN209316143U (en) | A kind of novel aortic windowing stent system | |
| CN106137486A (en) | A kind of bifurcated sacculus | |
| CN213312823U (en) | Controlled release type medicine sacculus | |
| CN205964676U (en) | Adopt sacculus pipe of curved form head end | |
| CN201847799U (en) | Novel balloon catheter | |
| CN103316417A (en) | Cone-shaped balloon dilatation catheter | |
| JP2015213623A (en) | Balloon catheter | |
| CN207384354U (en) | A kind of outer sheath for aorta petal transport system | |
| CN205698866U (en) | A kind of Novel head aortic sac | |
| CN213941827U (en) | Pulmonary body shunt system for interventional therapy of pulmonary arterial hypertension | |
| CN208372275U (en) | Foley's tube | |
| CN205054514U (en) | Blood vessel bracket | |
| CN202478393U (en) | Coronary artery dilation balloon | |
| CN215841130U (en) | Balloon microcatheter capable of performing balloon dilatation and stent pushing | |
| CN213789513U (en) | Drug balloon conveying system with protection device | |
| CN206934434U (en) | A kind of hepatic surgery used saccular dilation guide tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170921 Address after: Suzhou City, Jiangsu Province, China 215000 Suzhou Industrial Park No. 8 Lane Patentee after: Shanghai Marvell Technology Suzhou Co. Ltd. Address before: 201203, room 328, 301 Edison Road, Zhangjiang hi tech garden, Shanghai, Pudong New Area Patentee before: Achieva Medical (Shanghai) Co., Ltd. |