CN203724602U - Medical balloon and balloon expansion catheter - Google Patents
Medical balloon and balloon expansion catheter Download PDFInfo
- Publication number
- CN203724602U CN203724602U CN201320744167.XU CN201320744167U CN203724602U CN 203724602 U CN203724602 U CN 203724602U CN 201320744167 U CN201320744167 U CN 201320744167U CN 203724602 U CN203724602 U CN 203724602U
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- CN
- China
- Prior art keywords
- sacculus
- balloon
- medical balloon
- longitudinal rib
- coating
- 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 - Lifetime
Links
- 238000000576 coating method Methods 0.000 claims description 38
- 239000011248 coating agent Substances 0.000 claims description 35
- 238000005461 lubrication Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 10
- 230000000916 dilatatory effect Effects 0.000 claims description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- -1 poly(ethylene oxide) Polymers 0.000 claims description 6
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 5
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 5
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 4
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 3
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 3
- DFPAKSUCGFBDDF-UHFFFAOYSA-N Nicotinamide Chemical compound NC(=O)C1=CC=CN=C1 DFPAKSUCGFBDDF-UHFFFAOYSA-N 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 3
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- 229920001477 hydrophilic polymer Polymers 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 239000011247 coating layer Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 18
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000003902 lesion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 231100000915 pathological change Toxicity 0.000 description 3
- 230000036285 pathological change Effects 0.000 description 3
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 206010059245 Angiopathy Diseases 0.000 description 1
- 208000017667 Chronic Disease Diseases 0.000 description 1
- 229920002614 Polyether block amide Polymers 0.000 description 1
- 241001314440 Triphora trianthophoros Species 0.000 description 1
- 238000002399 angioplasty Methods 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 208000029078 coronary artery disease Diseases 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 208000019622 heart disease Diseases 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The utility model provides a medical balloon and a balloon expansion catheter. The contour diameter of the balloon is relatively small after the pressure relief of the balloon. The balloon provided by the utility model can well pass through a diseased region. The medical balloon provided by the present utility model comprises a balloon conical part and a balloon straight part. The balloon straight part is circumferentially provided with a plurality of raised longitudinal ribs arranged spaced apart from one another. A strip-shaped coating layer can be coated onto the balloon straight part to form the plurality of raised longitudinal ribs.
Description
Technical field
This utility model relates to a kind of medical balloon and sacculus dilating catheter.
Background technology
According to World Health Organization's statistics, heart disease chronic diseases has become the topmost cause of death of the mankind, accounts for annual total toll and surpasses 60%, wherein especially in the majority with patients with coronary heart disease.Angioplasty (PCI) is the method for all kinds of angiopathys of effectively treating, and it inserts foley's tube to lesion vessels by percutaneous puncture patient peripheral arterial, expands narrow diseased region, makes a kind of less invasive techniques of lesion vessels dredging.
Sacculus and near-end pipeline section that sacculus dilating catheter has expanding ability by far-end form.When the sacculus of sacculus dilating catheter partly pushes to lesion, by fluid pressure, make balloon dilatation, make lesion vessels open-minded, restoration of blood flow is normal, and operation finishes, and the pressure release of pumpback liquid sacculus is then taken out conduit from patient body's blood vessel.
Along with extensively carrying out of PCI operation, the pathological changes of medical treatment becomes increasingly complex, therefore just more and more higher to the performance requirement of conduit.In clinical practice at present, the greatest problem that conduit exists can't pass diseased region exactly, accounts for 80% left and right of quality complain feedback.In order to promote the pathological changes ability of passing through of conduit, the main measure of most companies comprise reduce conduit pass through external diameter (crossing profile) size, and catheter surface carries out the sacculus part of coating processing, particularly conduit.
On the other hand, withdrawing in process after sacculus completes expansion, (profile) is excessive for the outline diameter after sacculus pressure release, easily causes the support displacement after vascular damaged and implantation, has reduced the curative effect of operation.Finally, although the disposable use of medical apparatus and instruments has significantly reduced the risk infecting, also having caused the increase of patient treatment cost, will be effective solution and how to improve the repeatedly utilization rate of medical apparatus and instruments in same patient treatment.In order to realize withdrawing smoothly and utilization rate repeatedly after balloon expandable, the outline diameter reducing after sacculus pressure release is the most feasible mode.After balloon expandable pressure release, sacculus cannot be folded back to preoperative low profile diameter state again, and it is the state of uniform three wings, four wings and five wings that multipotency is replied, and what determine its outline diameter size is its wing number that can recover, the wing number of replying is more, and the outline diameter of formation is just less.
Therefore need on the one hand to improve sacculus by the ability of diseased region, should make on the other hand sacculus withdrawing in process after completing expansion, the outline diameter after pressure release is as much as possible little.
Summary of the invention
In view of this, main purpose of the present utility model is to provide a kind of medical balloon and sacculus dilating catheter, and this sacculus has less outline diameter after pressure release, and another object of the present utility model is that sacculus is also had preferably by the ability of diseased region simultaneously.
For achieving the above object, according to an aspect of the present utility model, provide a kind of medical balloon.
Medical balloon of the present utility model comprises sacculus tapering and sacculus flat segments, in described sacculus flat segments, along being circumferentially arranged at intervals with many protruding longitudinal ribs.
Alternatively, described longitudinal rib is to form by apply strip coating in described sacculus flat segments.
Alternatively, described coating is polyurethanes coating, hydrophilic lubrication coating, acrylic coatings or the high-elastic coating of organosilicon.
Alternatively, described hydrophilic lubrication coating is poly(ethylene oxide), acrylic acid or acrylic amide hydrophilic polymer or polyvinylpyrrolidone.
Alternatively, described longitudinal rib is that balloon material thickens and forms on strip region.
Alternatively, the bearing of trend of described longitudinal rib and balloon shaft between angle be more than or equal to zero, make described longitudinal rib in balloon surface clockwise or be rotated counterclockwise to extend or be parallel to sacculus and extend axially.
Alternatively, described angle is less than 15 °.
Alternatively, the number of described longitudinal rib is 3,4 or 5.
Alternatively, described longitudinal rib is along the circumferential spaced set of sacculus.
Alternatively, the material of described medical balloon is polyurethane elastomer, nylon, block polyether acidamide resin, polyolefin or polyester.
According on the other hand of the present utility model, a kind of sacculus dilating catheter is provided, the far-end of this sacculus dilating catheter has sacculus of the present utility model.
According to the technical solution of the utility model, in sacculus flat segments, there are many protruding longitudinal ribs, make to form after sacculus pressure release and take the wings that longitudinal rib is top, sacculus now has less outline diameter, is easy to withdraw; Adopt hydrophilic lubrication coating formation longitudinal rib can make sacculus hold under state and there is good trafficability characteristic in folding pressure, make again it under expansion state, can precisely expand diseased region, also can make to there is less outline diameter after its pressure release.
Accompanying drawing explanation
Accompanying drawing, for understanding this utility model better, does not form improper restriction of the present utility model.Wherein:
Fig. 1 is the schematic diagram in the profile of expansion state according to a kind of sacculus of this utility model embodiment;
Fig. 2 is according to the folding schematic diagram of pressing the state of holding of the sacculus with three longitudinal ribs of this utility model embodiment;
Fig. 3 is according to the schematic diagram of the state after the balloon expandable pressure release with three longitudinal ribs of this utility model embodiment;
Fig. 4 is according to the schematic diagram of the profile of the another kind of sacculus of this utility model embodiment;
Fig. 5 is the schematic diagram in the cross section under expansion state according to the sacculus of this utility model embodiment;
Fig. 6 A is a kind of front view and the section B-B schematic diagram of manufacturing the mould of sacculus according to this utility model embodiment;
Fig. 6 B is the schematic diagram of the cross section A-A in 6A;
Fig. 6 C is the enlarged diagram of the section B-B in Fig. 6 A;
Fig. 7 A, Fig. 7 B, Fig. 7 C manufacture the schematic diagram of the mould of sacculus according to the another kind of this utility model embodiment.
The specific embodiment
Below in conjunction with accompanying drawing, one exemplary embodiment of the present utility model is explained, comprising the various details of this utility model embodiment, to help understanding, they should be thought to be only exemplary.Therefore, those of ordinary skills will be appreciated that, can make various changes and modification to the embodiments described herein, and can not deviate from scope and spirit of the present utility model.Equally, for clarity and conciseness, in following description, omitted the description to known function and structure.
Fig. 1 is the schematic diagram in the profile of expansion state according to a kind of sacculus of this utility model embodiment.As shown in Figure 1, sacculus 1, under expansion state, has sacculus flat segments 11 and sacculus tapering 121,122.On the circumferencial direction of sacculus flat segments, be distributed with many protruding along the axially extended longitudinal rib 13 of sacculus, under pictorial view, can see a longitudinal rib, longitudinal rib can be three to five or more.
Take that to adopt three longitudinal ribs be example, it is folding presses the state held as shown in Figure 2.Fig. 2 is according to the folding schematic diagram of pressing the state of holding of the sacculus with three longitudinal ribs of this utility model embodiment.Fig. 2 is the view of section, and sacculus 2 has longitudinal rib 21,22,23 in the end of burst.As shown in Figure 3, Fig. 3 is according to the schematic diagram of the state after the balloon expandable pressure release with three longitudinal ribs of this utility model embodiment to the state of this sacculus after expansion pressure release.Existence due to protruding longitudinal rib, the intensity of the balloon wall between adjacent longitudinal rib is lower than the intensity of longitudinal rib position, therefore the balloon wall between adjacent longitudinal rib more easily curves inwardly during pressure release, thereby form and take the wings that longitudinal rib is top, thereby make to have less outline diameter after sacculus pressure release, for example three of the sacculus in Fig. 33 longitudinal ribs 311,312,313 lay respectively at the top of the wing 321,322,323.The number of longitudinal rib is more, and the wing number of replying after balloon expandable pressure release is just more.But longitudinal rib is too much unsuitable, otherwise sacculus is difficult to reply on the contrary.
If each wing that sacculus forms after expansion pressure release is as can be seen from Figure 3 if inclination to some extent contributes to reduce the now outline diameter of sacculus.For this reason, a kind of preferred structure be make longitudinal rib and balloon shaft between there is certain angle, this angle refers to the angle between longitudinal rib and the projection of sacculus axis in the plane that is parallel to sacculus axis.This angle can be within 15 °.Referring to Fig. 4, Fig. 4 is according to the schematic diagram of the profile of the another kind of sacculus of this utility model embodiment, and wherein there is the longitudinal rib 411,412 of inclination on the surface of sacculus 4.The longitudinal rib of this inclination can be three to five or more, they in balloon surface with clockwise or be rotated counterclockwise extension.
A kind of optimal way that forms longitudinal rib is to apply strip coating in sacculus flat segments, and this coating can be selected polyurethanes coating, hydrophilic lubrication coating, acrylic coatings or the high-elastic coating of organosilicon etc.Wherein preferred mode is to adopt hydrophilic lubrication coating, such as poly(ethylene oxide), acrylic acid or acrylic amide hydrophilic polymer or polyvinylpyrrolidone etc.When sacculus by the coating position after expanding as shown in Figure 5, Fig. 5 is the schematic diagram in the cross section under expansion state according to the sacculus of this utility model embodiment.In Fig. 5, coating 511,512,513 each self-forming longitudinal ribs of sacculus 5.The existence of coating makes the mechanical property generation difference of balloon wall between longitudinal rib place and longitudinal rib, after sacculus 5 pressure releases, the balloon wall between longitudinal rib is easier to shrink like this, can form and be similar to the wing shown in Fig. 3 equally, thereby obtain less sacculus outline diameter.Can for the accuracy applying, the sacculus of being expanded can be placed in to the formwork of a hollow out directly at the balloon surface coating of being expanded, coating is carried out in hollow out position.
Because adopt hydrophilic lubrication coating, thereby except forming the gabarit diameter of longitudinal rib reduction sacculus after expansion pressure release, due to the greasy property of hydrophilic lubrication coating, also contribute to improve by the ability of diseased region; And as can be seen from Figure 5, sacculus is under expansion state, its surface only scribbles hydrophilic lubrication coating in a part, so sacculus is not easy to skid when expansion, can precisely expand diseased region, thereby generally speaking adopt hydrophilic lubrication coating formation longitudinal rib can make sacculus hold under state and there is good trafficability characteristic in folding pressure, make again it under expansion state, can precisely expand diseased region, also can make to there is less outline diameter after its pressure release, so there is the effect of killing three birds with one stone.
In realization, can select specification is 2530 sacculus, and balloon material is PEBAX7233, and coating material can be selected polyvinylpyrrolidone PVP.According to Fig. 1 and Fig. 2, carry out sacculus coating, it is outer that hydrophilic lubrication coat is positioned at folding sacculus, is folding sacculus gabarit diameter maximum herein.Result after coating: sacculus under 14atm, 1:1 contrast solution, pressurising 10 times, all replys even three wings.Coating material also can be selected polyethylene glycol oxide PEO, by Fig. 4, carries out coating, and sacculus forms the even three wings of rotation after expansion pressure release like this.Apply after hydrophilic lubrication coating, built 3 pulley structures, be conducive to pushing with secondary first of sacculus and passing through of pathological changes.
Longitudinal rib can be also that balloon material thickens and forms on strip region, can adopt and realize as the mould of Fig. 6 A to Fig. 7 C.For example, can adopt the sacculus tubing of internal diameter 0.0230inch, external diameter 0.0355inch, put it into stretched inflation aftershaping in the mould as shown in Fig. 6 A to Fig. 6 C.Fig. 6 A is a kind of front view and the section B-B schematic diagram of manufacturing the mould of sacculus according to this utility model embodiment, and Fig. 6 B is the schematic diagram of the cross section A-A in 6A, and Fig. 6 C is the enlarged diagram of the section B-B in Fig. 6 A.Wherein there are four regions 611,612,613,614 of expanding to outside in the chamber 61 of mould 60, thereby balloon material thickens formation longitudinal rib in these four regions.The thickness of these four longitudinal ribs is different from other parts of sacculus, forms and is longitudinally evenly distributed in the striped on sacculus active section.The thickness at longitudinal rib place is 1.5mil, and the thickness of other parts of sacculus is 1.2mil, and sacculus nominal diameter is 3.5mm, and it is withstand voltage is 20atm.
Fig. 7 A, Fig. 7 B, Fig. 7 C manufacture the schematic diagram of the mould of sacculus according to the another kind of this utility model embodiment, wherein Fig. 7 A, Fig. 7 B and Fig. 7 C are respectively front view, A-A profile and B-B profile.It by external diameter, is first first one-step forming after 0.0385inch, the internal diameter stretched inflation of PEBAX sacculus tubing that is 0.0265inch, just the sacculus after one-step forming is placed in the heated hollow rhombus mould shown in Fig. 7 A to Fig. 7 C again, sacculus is pressurized to after 6atm, mould starts to be warming up to 100 ℃, after 5min, pressure release is taken out, and obtains the sacculus of complete molding.Existence due to the drift angle 711,712,713,714 of the rhombus 71 in mould, the sacculus that makes to obtain has four thickness and is different from other parts and is upwards distributed in the longitudinal stripe on sacculus active section in equispaced in sacculus week, the thickness of this part is 1.6mil, the thickness of other parts of sacculus is 1.3mil, sacculus nominal diameter is 4.0mm, and it is withstand voltage is 19atm.Those of ordinary skills can expect at an easy rate, and the mould of manufacturing sacculus can be also triangle or pentagon, are different from the longitudinal rib of other parts of sacculus to form three or five thickness.
Balloon material can also be selected polyurethane elastomer, nylon, block polyether acidamide resin, polyolefin, polyester etc.The sacculus of making can be applicable to, in various sacculus dilating catheters, be arranged on distal end of catheter.
The above-mentioned specific embodiment, does not form the restriction to this utility model protection domain.Those skilled in the art should be understood that, depend on designing requirement and other factors, various modifications, combination, sub-portfolio can occur and substitute.Any modification of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in this utility model protection domain.
Claims (11)
1. a medical balloon, comprises sacculus tapering and sacculus flat segments, it is characterized in that, in described sacculus flat segments, along being circumferentially arranged at intervals with many protruding longitudinal ribs.
2. medical balloon according to claim 1, is characterized in that, described longitudinal rib is to form by apply strip coating in described sacculus flat segments.
3. medical balloon according to claim 2, is characterized in that, described coating is polyurethanes coating, hydrophilic lubrication coating, acrylic coatings or the high-elastic coating of organosilicon.
4. medical balloon according to claim 3, is characterized in that, described hydrophilic lubrication coating is poly(ethylene oxide), acrylic acid or acrylic amide hydrophilic polymer or polyvinylpyrrolidone.
5. medical balloon according to claim 1, is characterized in that, described longitudinal rib is that balloon material thickens and forms on strip region.
6. according to the medical balloon described in any one in claim 1 to 5, it is characterized in that, the bearing of trend of described longitudinal rib and balloon shaft between angle be more than or equal to zero, make described longitudinal rib in balloon surface clockwise or be rotated counterclockwise to extend or be parallel to sacculus and extend axially.
7. medical balloon according to claim 6, is characterized in that, described angle is less than 15 °.
8. according to the medical balloon described in any one in claim 1 to 5, it is characterized in that, the number of described longitudinal rib is 3,4 or 5.
9. according to the medical balloon described in any one in claim 1 to 5, it is characterized in that, described longitudinal rib is along the circumferential spaced set of sacculus.
10. according to the medical balloon described in any one in claim 1 to 5, it is characterized in that, the material of described medical balloon is polyurethane elastomer, nylon, block polyether acidamide resin, polyolefin or polyester.
11. 1 kinds of sacculus dilating catheters, is characterized in that, far-end has the sacculus described in any one in claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320744167.XU CN203724602U (en) | 2013-11-21 | 2013-11-21 | Medical balloon and balloon expansion catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320744167.XU CN203724602U (en) | 2013-11-21 | 2013-11-21 | Medical balloon and balloon expansion catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203724602U true CN203724602U (en) | 2014-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320744167.XU Expired - Lifetime CN203724602U (en) | 2013-11-21 | 2013-11-21 | Medical balloon and balloon expansion catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203724602U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104645487A (en) * | 2013-11-21 | 2015-05-27 | 上海微创医疗器械（集团）有限公司 | Medical balloon and manufacturing method thereof, balloon dilatation catheter |
| CN106308870A (en) * | 2016-10-10 | 2017-01-11 | 谢斌 | superior and inferior vena cava occlusion airbag |
| CN109152649A (en) * | 2016-03-01 | 2019-01-04 | 海峡接入控股（私人）有限公司 | A kind of inflatable insertion equipment for being percutaneously inserted into |
| CN109999322A (en) * | 2019-04-25 | 2019-07-12 | 禾木（中国）生物工程有限公司 | Balloon guide catheter |
-
2013
- 2013-11-21 CN CN201320744167.XU patent/CN203724602U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104645487A (en) * | 2013-11-21 | 2015-05-27 | 上海微创医疗器械（集团）有限公司 | Medical balloon and manufacturing method thereof, balloon dilatation catheter |
| WO2015074602A1 (en) * | 2013-11-21 | 2015-05-28 | 上海微创医疗器械（集团）有限公司 | Medical balloon, manufacturing method therefor, and balloon expansion catheter |
| CN104645487B (en) * | 2013-11-21 | 2021-06-01 | 上海微创医疗器械（集团）有限公司 | Medical balloon, manufacturing method thereof and balloon dilatation catheter |
| CN109152649A (en) * | 2016-03-01 | 2019-01-04 | 海峡接入控股（私人）有限公司 | A kind of inflatable insertion equipment for being percutaneously inserted into |
| CN106308870A (en) * | 2016-10-10 | 2017-01-11 | 谢斌 | superior and inferior vena cava occlusion airbag |
| CN109999322A (en) * | 2019-04-25 | 2019-07-12 | 禾木（中国）生物工程有限公司 | Balloon guide catheter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |