CN103877672A - Double-blade cutting balloon with uneven thickness - Google Patents
Double-blade cutting balloon with uneven thickness Download PDFInfo
- Publication number
- CN103877672A CN103877672A CN201410117540.8A CN201410117540A CN103877672A CN 103877672 A CN103877672 A CN 103877672A CN 201410117540 A CN201410117540 A CN 201410117540A CN 103877672 A CN103877672 A CN 103877672A
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- CN
- China
- Prior art keywords
- cutting
- balloon
- cutting balloon
- sacculus
- blade
- 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.)
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3205—Excision instruments
- A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
- A61B17/320725—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with radially expandable cutting or abrading elements
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements 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
- A61B2017/22051—Implements 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
- A61B2017/22061—Implements 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M2025/1043—Balloon catheters with special features or adapted for special applications
- A61M2025/1086—Balloon catheters with special features or adapted for special applications having a special balloon surface topography, e.g. pores, protuberances, spikes or grooves
Abstract
The invention relates to the field of medical apparatuses and instruments, in particular to a double-blade cutting balloon with the uneven thickness. The cross section of the cutting balloon is in an oval shape and is uneven in thickness. Two blades of the same size are attached to the short axis. In the prior art, a cutting balloon is defined as an interventional device with three to four blades distributed at equal angles along the longitudinal axis of the cylindrical balloon. According to the novel cutting balloon, due to the facts that the shape of a balloon body is changed and the number of the blades is determined, the cutting balloon can be more flexible, and excessive cutting or incomplete cutting is avoided in the cutting process. The cutting balloon can effectively cut plaques in blood vessels, operation is convenient, the cutting portion and the cutting degree are easy to control, and the cutting balloon is particularly suitable for stenosis cases with irregularly-distributed plaques.
Description
Technical field
The present invention relates to medical instruments field, be loaded with the Cutting balloon of double blade in particular to a kind of uneven gauge balloon surface.
Background technology
Along with the raising of people's living standard, the change of living habit, and the process of senescence society, cardiovascular diseases's sickness rate increases day by day, and human health in serious threat, even threatens patient's life, and its prevention and diagnosis and treatment burden concerning society's medical treatment is larger.Coronary atherosclerosis is the arteria coronaria angiostenosis causing and cause the main cause of coronary heart disease.Reach 1,730 ten thousand people according to the global number of dying from cardiovascular disease of statistics in 2008, account for 30% of global death toll.According to estimates, the year two thousand thirty will have 2,330 ten thousand people to die from cardiovascular disease.
Coronary atherosclerosis and then generation stricture of artery or obstruction, very easily cause coronary heart disease.The Therapeutic Method of coronary heart disease mainly contains internal medicine treatment, heart intervention treating and surgical operation therapy at present.Have the patient of myocardial ischemia evidence in a big way for chronic stable coronary heart disease, interventional therapy is one of effective ways of relief of symptoms.
Percutaneous coronary balloon angioplasty, coronary artery stent implantation and the coronary artery turnery art of cardio-vascular interventional therapeutic become the very important means for the treatment of coronary stricture, and is slowly accepted in coronary heart disease treatment with superioritys such as its wound are little, safe, indication is wide, postoperative complication is few.But with the aggravation of social senilization, the prevalence of coronary heart disease is in rising trend, the ratio of coronary artery calcification pathological changes obviously raises, and increases the difficulty of the interventional therapy of knowing clearly, and has a strong impact on patient's quality of life and prognosis.When calcify lesion interventional therapy, often blood vessel angulation, distortion are serious, make intervention apparatus be difficult to pass through, and have increased the probability that support comes off; Calcify lesion is hard, after employing balloon expandable, may exist expansion insufficient, or vascular dissection; Calcify lesion belongs to high expansion resistance pathological changes and easily causes support hypectasia.At this moment, Cutting balloon angioplasty has just become highly effective means.
Cutting balloon angioplasty is a kind of interventional therapy method growing up on angioplasty basis in traditional balloon cavity.But be a kind of method that rotary-cut art is not exclusively rotary-cut art that is similar to, mainly utilize with the atheromatous plaque on the balloon expandable cutting vessel inwall of microknife, use conventional sacculus to expand to hard pathological changes such as calcifications, Cutting balloon often can reach promising result.But in clinical practice, normal generation is cut transition or cuts not exclusively.Therefore, need a kind of Cutting balloon can either freely select cutting part and can guarantee that cutting part is not injury-free.
Summary of the invention
The Cutting balloon that sacculus is in uneven thickness, described Cutting balloon comprises the double blade that sacculus itself and surface are provided with.
To achieve these goals, the invention provides technical scheme:
A double blade Cutting balloon for uneven gauge, is characterized in that: described Cutting balloon comprises sacculus body and surperficial double blade.Preferably, sacculus body shape is elliptical cylinder-shape.
Preferably, blade is attached to sacculus minor axis and parallel with the longitudinal axis.
Preferably, this body section of sacculus is oval, and on long axis direction, sacculus is thicker, and on short-axis direction, sacculus is thinner; In major and minor axis direction, sacculus Thickness Ratio is 3:1-5:1.The thickness that is Cutting balloon major axis position is minor axis 3 to 5 times.
Preferably, described balloon material is the nylon material that tensile property is good.
Preferably, the blade work section cross sectional shape of balloon surface is triangle or trapezoidal.
Preferably, blade side is lamellar, zigzag or stepped.
Preferably, described blade material is selected medical macromolecular materials or micro-cutting operation metal material.
Preferably, described metal material is medical stainless steel, alloy.
Preferably, described blade symmetry is attached on the minor axis of elliptic cross-section and moves towards along the sacculus longitudinal axis.
Preferably, preferably, blade side has some apertures.Be that described blade side is uniformly distributed the hole that can increase blade compliance.
Preferably, described Cutting balloon is for cerebrovascular, cardiovascular or peripheral blood vessel.
Can find out from above-mentioned technical scheme, sacculus cross section is oval, and in balloon expandable process, the expansion support blood vessels speckle on major axis forms moment of flexure on minor axis, more easily cutting.And major axis is thicker on sacculus cross section, it is thinner that minor axis adheres to insert orientation, and such sacculus can be expanded comparatively uniformly under hydraulic action, long axis direction can not occur and overextend, and short-axis direction is expanded not enough situation.The present invention design Cutting balloon in numerical simulation analysis adheres to insert orientation and can cut completely the speckle in blood vessel, does not adhere to and on insert orientation, does not injure blood vessel body simultaneously.Avoid the incomplete cutting of cutting part in operation process and retained the infringement of not being in the mood at position.
Accompanying drawing explanation
Be illustrated more clearly in the technical scheme of the embodiment of the present invention or prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be done to simple introduction below, the specific embodiment of a kind of Cutting balloon that obviously, these accompanying drawing feeds the application records.The present invention includes but be not limited only to following these.
Fig. 1 is the schematic diagram of stricture of artery speckle,
The Cutting balloon cutting stenotic lesion schematic diagram that Fig. 2 provides for the embodiment of the present invention.
The Cutting balloon structural representation that Fig. 3 provides for the embodiment of the present invention.
The Cutting balloon cross-sectional configuration schematic diagram that Fig. 4 provides for the embodiment of the present invention.
The local structural representation that amplifies of Cutting balloon that Fig. 5 provides for the embodiment of the present invention.
Local two structural representations that amplify of Cutting balloon that Fig. 6 provides for the embodiment of the present invention.
The Cutting balloon blade schematic diagram that Fig. 7 provides for the embodiment of the present invention.
The local structure for amplifying schematic diagram of Cutting balloon blade that Fig. 8 provides for the embodiment of the present invention.
The Cutting balloon blade side view one that Fig. 9 provides for the embodiment of the present invention
The Cutting balloon blade side view two that Figure 10 provides for the embodiment of the present invention.
The specific embodiment
In order further to understand the present invention, below in conjunction with embodiment, preferred version of the present invention is described.These descriptions just illustrate the features and advantages of the present invention, but not limit the scope of the invention.
The invention provides is that a kind of sacculus is in uneven thickness, the Cutting balloon of two pieces of blades of surface attachment.
In Fig. 3, blade material is micro-cutting operation metal material.The mode that is welding with sacculus is attached on the sacculus longitudinal axis.While expansion like this, can cut expansion to pathological changes narrow positions together by related blade under sacculus is subject to hydraulic action.
Cutting blade active section shape adopts trapezoidal, consults Fig. 5, also can adopt triangle, consults Fig. 6.Object is the narrow speckle of fly-cutting, makes sacculus can better expand stenotic lesion place.
Described knife number is two, on the symmetrical minor axis that is attached to sacculus.
Described blade side is uniformly distributed some apertures, makes blade more easily by the calcification of distortion.
Described blade side is flat blade, triangle or stepped dentalation, consults Fig. 7,9,10.
In sum, the Cutting balloon 1 for the treatment of stricture of artery disclosed by the invention, sacculus 2 surfaces are with blade 3, blade 3 can cut the speckle 5 in blood vessel, without the ellipse sacculus longitudinal end of blade, blood vessel wall 6 is acted on simultaneously, but can not reach the rupture stress of speckle, can not cause damage to it.On blade 3, some apertures 4 increase the compliance of blade, and another Cutting balloon passes the pathological tissues of distortion easily.
The present invention is applicable to the irregular pathological changes of speckle, is particularly useful for symmetrical cutting, and the complex lesions that another axially needs protection.
In this description, each embodiment adopts the mode of selection to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually with reference to.
Claims (7)
1. a double blade Cutting balloon for uneven gauge, is characterized in that: described Cutting balloon comprises sacculus body and surperficial double blade.
2. the double blade Cutting balloon of a kind of uneven gauge as claimed in claim 1, is characterized in that: described sacculus body shape is elliptical cylinder-shape.
3. the double blade Cutting balloon of a kind of uneven gauge as claimed in claim 1 or 2, is characterized in that: this body section of sacculus is for oval, and on long axis direction, sacculus is thicker, and on short-axis direction, sacculus is thinner; In major and minor axis direction, sacculus Thickness Ratio is 3:1-5:1.
4. a kind of double blade Cutting balloon of uneven gauge as claimed in claim 2 or claim 3, is characterized in that: blade is attached to sacculus minor axis and parallel with the longitudinal axis.
5. the double blade Cutting balloon of a kind of uneven gauge as described in claim 1-4 any one, is characterized in that: blade work section cross sectional shape is triangle or trapezoidal.
6. the double blade Cutting balloon of a kind of uneven gauge as described in claim 1-5 any one,, it is characterized in that: blade side has some apertures.
7. the double blade Cutting balloon of a kind of uneven gauge as described in claim 1-6 any one,, it is characterized in that: blade side is lamellar, zigzag or stepped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410117540.8A CN103877672B (en) | 2014-03-27 | 2014-03-27 | A kind of double blade Cutting balloon of uneven gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410117540.8A CN103877672B (en) | 2014-03-27 | 2014-03-27 | A kind of double blade Cutting balloon of uneven gauge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103877672A true CN103877672A (en) | 2014-06-25 |
| CN103877672B CN103877672B (en) | 2016-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410117540.8A Active CN103877672B (en) | 2014-03-27 | 2014-03-27 | A kind of double blade Cutting balloon of uneven gauge |
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| Country | Link |
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| CN (1) | CN103877672B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104998341A (en) * | 2015-06-05 | 2015-10-28 | 乐普（北京）医疗器械股份有限公司 | Cutting balloon |
| CN105521547A (en) * | 2016-01-19 | 2016-04-27 | 杨首男 | Supporting balloon capable of realizing prostate directional dilation |
| CN108348734A (en) * | 2015-09-17 | 2018-07-31 | 开金血管有限公司 | The wedge-shaped cutter of medical balloon |
| CN110063768A (en) * | 2019-04-04 | 2019-07-30 | 深圳市业聚实业有限公司 | A kind of Cutting balloon |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2266994Y (en) * | 1996-12-19 | 1997-11-12 | 王成伟 | Saccule catheter for picking off and then removing thrombus |
| US5797935A (en) * | 1996-09-26 | 1998-08-25 | Interventional Technologies Inc. | Balloon activated forced concentrators for incising stenotic segments |
| US20040133223A1 (en) * | 2003-01-02 | 2004-07-08 | Jan Weber | Medical devices |
| US20110160756A1 (en) * | 2009-12-29 | 2011-06-30 | William Cook Europe Aps | Cutting or Scoring Balloon, System and Method of Making a Cutting or Scoring Balloon |
| US20120172901A1 (en) * | 2010-12-29 | 2012-07-05 | Boston Scientific Scimed, Inc. | Cutting balloon catheter |
-
2014
- 2014-03-27 CN CN201410117540.8A patent/CN103877672B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5797935A (en) * | 1996-09-26 | 1998-08-25 | Interventional Technologies Inc. | Balloon activated forced concentrators for incising stenotic segments |
| CN2266994Y (en) * | 1996-12-19 | 1997-11-12 | 王成伟 | Saccule catheter for picking off and then removing thrombus |
| US20040133223A1 (en) * | 2003-01-02 | 2004-07-08 | Jan Weber | Medical devices |
| US20110160756A1 (en) * | 2009-12-29 | 2011-06-30 | William Cook Europe Aps | Cutting or Scoring Balloon, System and Method of Making a Cutting or Scoring Balloon |
| US20120172901A1 (en) * | 2010-12-29 | 2012-07-05 | Boston Scientific Scimed, Inc. | Cutting balloon catheter |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104998341A (en) * | 2015-06-05 | 2015-10-28 | 乐普（北京）医疗器械股份有限公司 | Cutting balloon |
| CN104998341B (en) * | 2015-06-05 | 2019-03-05 | 乐普（北京）医疗器械股份有限公司 | A kind of Cutting balloon |
| CN108348734A (en) * | 2015-09-17 | 2018-07-31 | 开金血管有限公司 | The wedge-shaped cutter of medical balloon |
| CN105521547A (en) * | 2016-01-19 | 2016-04-27 | 杨首男 | Supporting balloon capable of realizing prostate directional dilation |
| CN110063768A (en) * | 2019-04-04 | 2019-07-30 | 深圳市业聚实业有限公司 | A kind of Cutting balloon |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103877672B (en) | 2016-08-17 |
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