CN104998341B - A kind of Cutting balloon - Google Patents

A kind of Cutting balloon Download PDF

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Publication number
CN104998341B
CN104998341B CN201510305053.9A CN201510305053A CN104998341B CN 104998341 B CN104998341 B CN 104998341B CN 201510305053 A CN201510305053 A CN 201510305053A CN 104998341 B CN104998341 B CN 104998341B
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CN
China
Prior art keywords
cutter hub
sacculus
tool apron
knife
point
Prior art date
Application number
CN201510305053.9A
Other languages
Chinese (zh)
Other versions
CN104998341A (en
Inventor
王禹
孙家茂
姜立红
柳飞飞
刘洋
Original Assignee
乐普(北京)医疗器械股份有限公司
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 乐普(北京)医疗器械股份有限公司 filed Critical 乐普(北京)医疗器械股份有限公司
Priority to CN201510305053.9A priority Critical patent/CN104998341B/en
Publication of CN104998341A publication Critical patent/CN104998341A/en
Application granted granted Critical
Publication of CN104998341B publication Critical patent/CN104998341B/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32Surgical cutting instruments
    • A61B17/3205Excision instruments
    • A61B17/3207Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
    • A61B17/320725Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with radially expandable cutting or abrading elements
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B2017/22051Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
    • A61B2017/22061Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation for spreading elements apart
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/10Balloon catheters
    • A61M2025/1043Balloon catheters with special features or adapted for special applications
    • A61M2025/1086Balloon catheters with special features or adapted for special applications having a special balloon surface topography, e.g. pores, protuberances, spikes or grooves

Abstract

The embodiment of the invention discloses a kind of Cutting balloons, applied to the field of medical instrument technology, when solving existing sacculus to the biggish lesions cutting of hardness of calcification lesion or other formation, due to the impaired technical problem of the larger caused blade of stress, sacculus is caused reversely to destroy when avoiding blade stress excessive to a certain extent.Cutting balloon provided in an embodiment of the present invention includes sacculus, and on the sacculus outer surface axial restraint multiple rows of cutter hub;There are gaps between any two cutter hub;The cutter hub includes point of a knife and tool apron, the point of a knife and tool apron be it is integrated, the thickness of the cutter hub is gradually increased by point of a knife to tool apron, and the cutter hub is directly anchored on the sacculus by tool apron.

Description

A kind of Cutting balloon

Technical field

The present invention relates to the field of medical instrument technology more particularly to a kind of Cutting balloons.

Background technique

Interventional therapy is a kind of minimal invasive treatment, is to make diameter on blood vessel, skin under the guidance of medical imaging device Several millimeters of minim channel, or the precision instruments such as special conduit, seal wire are introduced into human body, to body through human body original pipeline Interior morbid state carries out diagnosis and local treatment.Because its minimally invasive, safe, easy to operate, good effect, it is quick the advantages that have become and in Section's treatment, surgical intervention the third-largest clinical treatment means arranged side by side.Clinically not thought to control or obstinate disease is opened in the past to be many New effective therapy approach, such as advanced cancer, arterial embolism, hemadostewnosis, calculus of intrahepatic duct etc. are warded off.

Sacculus is a kind of intervention therapeutic apparatus that clinical medicine is commonly used, and cardinal principle is that sacculus reaches lesion locations When, so that sacculus is propped up blood vessel by balloon expandable, treated accordingly at balloon expandable, such as thrombus.Clinic makes at present With effect preferably Cutting balloon, Cutting balloon is a kind of special sacculus, it is by micro- cutting operation and balloon expandable mechanism knot It is combined, expansion pressure concentrated using sacculus, lower is carried out safe and effective cutting to vascular wall, expanded by sacculus Zhang Zengjia minimum lumen diameter reduces Detecting Residual Stenosis, plays a significant role in Complex Coronary Lesions processing.

Summary of the invention

Inventor has found that there are passabilities is poor for the Cutting balloon occurred in recent years by numerous studies, it is difficult to by complicated circuitous Bent blood vessel reaches lesion to implement to cut.More importantly the cutter hub of traditional Cutting balloon is all sheet, stress is not Good, for biggish lesions of hardness such as cutting calcifications, blade is easy because of the excessive reversed destruction sacculus of stress itself.

In view of this, the embodiment of the present invention provides a kind of Cutting balloon, solve existing sacculus to calcification lesion or other When the biggish lesion of the hardness of formation is cut, due to the impaired technical problem of the larger caused blade of stress, to a certain extent Sacculus is caused reversely to destroy when avoiding blade stress excessive.

In order to solve the above technical problems, the embodiment of the present invention provides a kind of Cutting balloon, it may include: sacculus, and in institute State multiple rows of cutter hub of axial restraint on sacculus outer surface;There are gaps between any two cutter hub;

The cutter hub includes point of a knife and tool apron, and the point of a knife and tool apron are integrated;

The thickness of the cutter hub is gradually increased by point of a knife to tool apron, and cutter hub is directly anchored on the sacculus by tool apron.

In some embodiments, the length of the cutter hub is less than or equal to 2.4mm.

In some embodiments, the cutter hub of axial restraint is 3 rows or 4 rows on the outer surface of the sacculus.

In some embodiments, the cutter hub is formed by wire cutting.

In some embodiments, the point of a knife angle of the cutter hub is 18-22 degree.

In some embodiments, the hardness of the cutter hub is HV500-580.

In some embodiments, the tool apron bottom is fluted.

In some embodiments, the cross section of the cutter hub is tapered.

In some embodiments, the cutter hub is with sacculus bonding plane at the cylinder matched with sacculus.

As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that

In the technical solution provided in the embodiment of the present invention, the multiple rows of cutter hub of axial restraint on the external peripheral surface of sacculus is appointed Anticipate between two cutter hubs there are gap so that sacculus it is whole during push bending freedom degree it is higher, in tortuous blood vessel In passability it is also relatively strong, reduction is damaged caused by vascular wall in the course of surgery.The point of a knife and tool apron of cutter hub be it is integrated, And the thickness of cutter hub is gradually increased by point of a knife to tool apron, so that the area of base of cutter hub is larger, such cutter hub passes through blood in sacculus There is stronger force resistance, stress is more reasonable, is unlikely to deform, and is more suitable for the biggish diseases of some hardness such as cutting calcification when pipe Become.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with It obtains other drawings based on these drawings.

Fig. 1 is a kind of structural schematic diagram of Cutting balloon provided in an embodiment of the present invention;

Fig. 2 is the section schematic diagram of cutter hub shown in Fig. 1.

Specific embodiment

The embodiment of the invention provides a kind of Cutting balloon, solve existing sacculus to calcification lesion or other formed it is hard When spending the cutting of biggish lesion, due to the impaired technical problem of the larger caused blade of stress, blade is avoided to a certain extent Sacculus is caused reversely to destroy when stress is excessive.

In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work It encloses.

Referring to Fig. 1, for a kind of structural schematic diagram of Cutting balloon in the embodiment of the present invention, it is described to cut in the present embodiment Cutting sacculus includes sacculus 1, and on 1 outer surface of sacculus axial restraint multiple rows of cutter hub 2;Between any two cutter hub 2 There are gaps;The cutter hub 2 may include point of a knife and tool apron, and the point of a knife is integrated with tool apron, and the thickness of cutter hub is by knife Point is gradually increased to tool apron, and the cutter hub is directly anchored on the sacculus by tool apron.

Before Cutting balloon reaches the diseased region cut, fixed cutter hub 2 is wrapped up on 1 outer surface of sacculus In sacculus 1, Cutting balloon is avoided to damage blood vessel.When sacculus to be cut reaches the diseased region cut, Sacculus 1 can gradually be pressurizeed, and the cutter hub 2 for being attached to 1 surface of sacculus protrudes, and be cut to calcification lesion.Cutting balloon is recalled When, sacculus 1 can be depressurized gradually, and cutter hub 2 is wrapped up by sacculus again.

The multiple rows of cutter hub of axial restraint on the external peripheral surface of sacculus shown in Fig. 1, there are gap between any two cutter hub, So that sacculus it is whole during push bending freedom degree it is higher, passability in tortuous blood vessel is also relatively strong, can reduce It is damaged caused by vascular wall in the course of surgery.The point of a knife and tool apron of cutter hub be it is integrated, and the thickness of cutter hub by point of a knife to Tool apron gradually increases, and such cutter hub has stronger force resistance when sacculus passes through blood vessel, and stress is more reasonable, is unlikely to deform, more Suitable for biggish lesions of some hardness such as cutting calcifications.

In actual use, since the length of cutter hub is too long, it will affect free bend when sacculus pushes in the blood vessel, into And push of the sacculus in tortuous blood vessel is influenced, so, the length of each cutter hub is unsuitable too long, can be according to the length of Cutting balloon The length of the reasonable setting cutter hub of degree.For example, of length no more than 2.4 millimeters of each cutter hub.

Meanwhile the cutter hub number on the fixed each row in sacculus outer surface be also required to according to the length of sacculus, thickness and Extent of disease setting to be cut, biggish for extent of disease, every row may include multiple cutter hubs.Here it does not limit specifically It is fixed.Under normal conditions, three to four row's cutter hubs 2 are equipped on the external peripheral surface of sacculus 1.For example, the diameter when sacculus 1 is less than At 3.5 millimeters, three row's cutter hubs 2 can be equipped on the external peripheral surface of sacculus 1, and when the diameter of sacculus 1 is more than or equal to 3.5 millimeters When, four row's cutter hubs can be equipped on the external peripheral surface of sacculus 1.Cutter hub 2 in every row's cutter hub quantity view sacculus 1 length and It is fixed, it can be equipped with 2-6 cutter hub 2 under normal conditions.In this embodiment, four row's cutter hubs are equipped on the external peripheral surface of sacculus 1 2, each row's cutter hub includes four cutter hubs 2.

In order to keep cutter hub 2 reliably relatively fixed with sacculus 1, bonding way is used between cutter hub 2 and sacculus 1.Processing When, firstly, being fixed multiple cutter hubs 2 at regular intervals by tooling, then cutter hub 2 is adhered on sacculus 1.Preferably, knife Can be Nian Jie using glue between body 2 and sacculus 1, which uses UV glue, because this material non-toxic, and in ultraviolet light Under can harden.

Fig. 2 show the cross-sectional of the cutter hub 2 of Cutting balloon of the invention, as shown in Fig. 2, the cross section of cutter hub Tapered structure, the point of a knife angle of the cutter hub 2 is 18-22 °, to improve the sharpness of cutter hub 2.In addition, by vacuum heat treatment, The hardness for improving cutter hub 2 controls the hardness of cutter hub 2 between HV500-580.Since cutter hub 2 has wider tool apron, stress More evenly rationally.So its cutting for being not only applicable to thrombus and being more suitable for the cutting of calcification lesion.

Preferably, be equipped with groove in the pedestal lower part of cutter hub 2, after being bonded using glue, cutter hub and sacculus bonding plane at The cylinder that sacculus matches increases the cutter hub fastness Nian Jie with sacculus, guarantees that cutter hub 2 will not play relative to sacculus 1.

Preferably, there is fixed gap between multiple cutter hubs 2, sacculus is allow to have the bending of certain angle, guarantee ball Capsule has cross-country traveling ability.

Preferably, which is formed using wire cutting, reduces the production cost of cutter hub 2, while can be prevented in cutter hub 2 Margin residual burr and generate risk.

The above is merely illustrative of the technical solution of the present invention, rather than its limitations;Although right with reference to the foregoing embodiments The present invention is described in detail, those skilled in the art should understand that: it still can be to foregoing embodiments Documented technical solution is modified or equivalent replacement of some of the technical features;And these are modified or replace It changes, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.

Claims (8)

1. a kind of Cutting balloon, which is characterized in that the Cutting balloon includes sacculus, and on the sacculus outer surface axially Fixed multiple rows of cutter hub;There are gaps between any two cutter hub;
The cutter hub includes point of a knife and tool apron, and the point of a knife and tool apron are integrated;
The thickness of the cutter hub is gradually increased by point of a knife to tool apron, and the tool apron includes the first tool apron and the second tool apron, the knife Body is fixed on the sacculus by second tool apron, and the point of a knife is connect with first tool apron, the angle of the point of a knife For 18-22 degree.
2. Cutting balloon according to claim 1, which is characterized in that the length of the cutter hub is less than or equal to 2.4mm.
3. Cutting balloon according to claim 1, which is characterized in that the cutter hub of axial restraint on the outer surface of the sacculus For 3 rows or 4 rows.
4. Cutting balloon according to claim 1, which is characterized in that the cutter hub is formed by wire cutting.
5. Cutting balloon according to claim 1-4, which is characterized in that the hardness of the cutter hub is HV500- 580。
6. Cutting balloon according to claim 1-4, which is characterized in that the tool apron bottom is fluted.
7. Cutting balloon according to claim 1-4, which is characterized in that the cross section of the cutter hub is tapered.
8. Cutting balloon according to claim 1-4, which is characterized in that the cutter hub and sacculus bonding plane at The cylinder that sacculus matches.
CN201510305053.9A 2015-06-05 2015-06-05 A kind of Cutting balloon CN104998341B (en)

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Application Number Priority Date Filing Date Title
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CN104998341B true CN104998341B (en) 2019-03-05

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1473058A (en) * 2001-08-08 2004-02-04 钟渊化学工业株式会社 Expansion catheter
CN203564643U (en) * 2013-09-11 2014-04-30 乐普(北京)医疗器械股份有限公司 Cutting balloon
CN103877672A (en) * 2014-03-27 2014-06-25 北京工业大学 Double-blade cutting balloon with uneven thickness
CN204147401U (en) * 2014-07-24 2015-02-11 深圳市金瑞凯利生物科技有限公司 Balloon catheter with spinous processes
EP2878275A1 (en) * 2013-11-29 2015-06-03 Cook Medical Technologies LLC Medical balloon

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2292185B1 (en) * 2000-07-24 2013-12-04 Jeffrey Grayzel Stiffened balloon catheter for dilatation and stenting
US7270673B2 (en) * 2003-12-31 2007-09-18 Boston Scientific Scimed, Inc. Microsurgical balloon with protective reinforcement
US7879053B2 (en) * 2004-12-20 2011-02-01 Boston Scientific Scimed, Inc. Balloon with stepped sections and implements
WO2006073933A2 (en) * 2004-12-30 2006-07-13 Cook Incorporated Catheter assembly with plaque cutting balloon

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1473058A (en) * 2001-08-08 2004-02-04 钟渊化学工业株式会社 Expansion catheter
CN203564643U (en) * 2013-09-11 2014-04-30 乐普(北京)医疗器械股份有限公司 Cutting balloon
EP2878275A1 (en) * 2013-11-29 2015-06-03 Cook Medical Technologies LLC Medical balloon
CN103877672A (en) * 2014-03-27 2014-06-25 北京工业大学 Double-blade cutting balloon with uneven thickness
CN204147401U (en) * 2014-07-24 2015-02-11 深圳市金瑞凯利生物科技有限公司 Balloon catheter with spinous processes

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