CN210131240U - Special sacculus of coronary artery bifurcation lesion support postdilatation stage - Google Patents
Special sacculus of coronary artery bifurcation lesion support postdilatation stage Download PDFInfo
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- CN210131240U CN210131240U CN201920423672.1U CN201920423672U CN210131240U CN 210131240 U CN210131240 U CN 210131240U CN 201920423672 U CN201920423672 U CN 201920423672U CN 210131240 U CN210131240 U CN 210131240U
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Abstract
The utility model provides a special balloon for post-dilatation stage of coronary bifurcation lesion stent, wherein a plurality of stages of independent balloons are sequentially arranged from front to back at the position of a catheter close to a head end; the outer diameter of the multistage independent saccule after isobaric expansion is sequentially increased from front to back, and each stage of independent saccule is cylindrical after isobaric expansion, so that the multistage independent saccule is arranged in a stepped shaft shape after isobaric expansion; each stage of independent saccule is connected with one end of an inflation tube, the other end of each inflation tube extends out of the tail end of the catheter and is connected with a control valve, and the control valves are connected with the same pressure pump. The utility model discloses a sacculus can carry out the multistage expansion of selecting to the support, can realize the perfect of support and branching ridge and cover, ensures to realize the perfect laminating of support and near-end vascular inner wall, and the support covers completely at the near-end, avoids producing the relevant complication of intervention such as thrombus in the support.
Description
Technical Field
The utility model belongs to the field of medical equipment, relate to the heart support, concretely relates to special sacculus of coronary artery branching pathological change support after expansion stage.
Background
Coronary artery bifurcation lesion refers to the lesion of severe stenosis existing in the main branch and branch parts of the coronary artery respectively or simultaneously, mainly comprises the lesions of anterior descending branch, diagonal branch, circumflex branch, blunt edge branch, right coronary artery distal bifurcation and left main branch, accounts for 15% -20% of all percutaneous coronary intervention, and is a difficult point of coronary artery interventional therapy.
Coronary bifurcation lesion is a common type of coronary heart disease patients, as shown in fig. 4, the bifurcation of main branch vessel 9 and side branch vessel 10 of coronary artery vessel is a vessel bifurcation crest 11, the vessel which is not bifurcated above bifurcation crest 11 is a proximal end 12, the main branch vessel which is divided into main branch vessel 9 and side branch vessel 10 below bifurcation crest 11 is a distal end 13, and the inner diameter of the vessel at proximal end 12 is larger than the inner diameter of the vessel at distal end 13. The treatment of bifurcation lesions is complicated by the fact that stents are placed in the main branch vessel and the side branch vessel, respectively, as is often done previously. However, the operation mode of the double stent usually has too much overlapped metal parts of the two metal stents, and has more complications after the operation. Therefore, in clinical practice, medical staff gradually performs the operation by only placing a stent on the main branch vessel as long as the side branch vessel lesion is not very serious, however, the method needs a good covering fit between the stent and the inner wall of the vessel, the stent needs to be expanded at the proximal end of the bifurcation crest of the vessel, and the process is mainly completed in the post-stenting expansion stage of the operation.
In the expansion process, the expansion of the stent at the near end is just right, and if the expansion at the near end is too far, the displacement of a bifurcation crest of the blood vessel and a metal ridge after the expansion of the stent is easily caused, so that the side branch blood vessel is influenced; if the stent is expanded too close at the proximal end, it is difficult to achieve perfect adhesion between the stent and the inner wall of the proximal blood vessel, and the stent is not covered sufficiently at the proximal end, and complications related to intervention such as thrombus in the stent are likely to occur. However, the balloon in the prior art has difficulty in realizing perfect coverage of the stent and the bifurcation ridges of the blood vessel in the post-stent expansion stage.
Disclosure of Invention
To the not enough and defect of above-mentioned prior art, the utility model aims to provide a special sacculus of coronary artery branching pathological change support postdilatation stage solves among the prior art the technical problem that the perfect coverage of support and blood vessel branching crest is difficult to realize in the support postdilatation stage.
In order to solve the technical problem, the application adopts the following technical scheme:
a special balloon for a post-dilatation phase of a coronary bifurcation lesion stent comprises a catheter, wherein a wire moving cavity with two open ends is coaxially arranged in the catheter, and a plurality of stages of independent balloons are sequentially arranged on the position, close to a head end, of the catheter from front to back;
the outer diameter of the multistage independent saccule after isobaric expansion is sequentially increased from front to back, and each stage of independent saccule is cylindrical after isobaric expansion, so that the multistage independent saccule is arranged in a stepped shaft shape after isobaric expansion; the end surfaces of two adjacent balloons which are in contact are integrally connected, so that after the multistage independent balloons are expanded in an isobaric manner, a balloon shoulder is formed between the two adjacent balloons;
each stage of independent saccule is connected with one end of an inflation tube, the other end of each inflation tube extends out of the tail end of the catheter and is connected with a control valve, and the control valves are connected with the same pressure pump.
The utility model discloses still have following technical characteristic:
the inflation tube is arranged in the tube wall of the conduit.
The multi-stage independent balloons are equal in axial length.
The axial length of the multi-stage independent saccule is equal to 5 mm.
The multistage independent saccule is a three-stage or four-stage independent saccule.
The outer diameters of the multistage independent balloons after isobaric expansion are sequentially increased in an arithmetic progression mode from front to back, the outer diameter of the balloon closest to the head end of the catheter is equal to 2.5mm, and the outer diameter of the balloon farthest from the head end of the catheter is equal to 4 mm.
The catheter at the corresponding position of each stage of independent balloon is correspondingly provided with an opaque marker band.
The opaque mark belt is arranged on the catheter corresponding to the head end of the saccule.
Compared with the prior art, the utility model, profitable technological effect is:
(I) the utility model discloses a sacculus can carry out the multistage expansion of selecting to the support, can realize the perfect of support and branching crest and cover, ensures to realize the perfect laminating of support and near-end vascular inner wall, and the support covers completely at the near-end, avoids producing the relevant complication of intervention such as thrombus in the support.
(II) the utility model discloses a sacculus can realize the one shot expansion shaping of support in the expansion stage behind the support, avoids the repeated operation damage support and blood vessel of sacculus.
(III) the utility model discloses a sacculus simple structure, convenient to use is showing and is reducing the operation time, improves treatment, is applicable to the intervention treatment of blood vessel branching position pathological change.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the structure of the pressure pump.
Fig. 3 is a structural schematic diagram of a general balloon.
Fig. 4 is a schematic diagram of the structure of a bifurcated ridge.
The meaning of the individual reference symbols in the figures is: 1-catheter, 2-running lumen, 3-balloon, 4-balloon shoulder, 5-inflation tube, 6-control valve, 7-pressure pump, 8-opaque marker band; 9-main branch vessel, 10-side branch vessel, 11-bifurcation ridge, 12-proximal, 13-distal, 14-guide wire.
The following detailed description of the present invention will be made with reference to the accompanying drawings and examples.
Detailed Description
The following embodiments of the present invention are given, and it should be noted that the present invention is not limited to the following embodiments, and all the equivalent transformations made on the basis of the technical solution of the present application all fall into the protection scope of the present invention.
Example (b):
according to the technical scheme, the special balloon for the post-dilatation phase of the coronary bifurcation lesion stent is provided in the embodiment, as shown in fig. 1 and fig. 2, the special balloon comprises a catheter 1, a wire moving cavity 2 with two open ends is coaxially arranged in the catheter 1, and a plurality of stages of independent balloons 3 are sequentially arranged on the position, close to the head end, of the catheter 1 from front to back;
the outer diameter of the multistage independent saccule 3 after isobaric expansion is sequentially increased from front to back, and each stage of independent saccule 3 is cylindrical after isobaric expansion, so that the multistage independent saccule 3 is arranged in a stepped shaft shape after isobaric expansion; the end surfaces of two adjacent balloons 3 which are in contact are integrally connected, so that after the multistage independent balloons 3 are expanded in an isobaric manner, a balloon shoulder 4 is formed between the two adjacent balloons 3;
each stage of independent saccule 3 is connected with one end of an inflation tube 5, the other end of each inflation tube 5 extends out of the tail end of the catheter 1 and is connected with a control valve 6, and the control valves 6 are connected with the same pressure pump 7.
In this embodiment, the catheter 1 and the wire passing lumen 2 are substantially the same as those of a conventional balloon for general dilatation shown in fig. 3, and the material of the balloon 3 is the same as that of a balloon for general dilatation. The inflation tube 5 and the pressure pump 7 are also conventional in the art.
As a preferable scheme of the embodiment, the inflation tube 5 is arranged in the tube wall of the catheter 1, and can be arranged along with the extension of the catheter 1 out of the patient body, and the arrangement is more reasonable.
As a preferable aspect of the present embodiment, the multiple stages of independent balloons 3 are equal in axial length. More preferably, the multistage independent balloon 3 is equal to 5mm in axial length. The balloon with the required outer diameter can be conveniently adjusted to the position needing to be expanded by a doctor according to clinical needs.
As a preferable aspect of the present embodiment, the multi-stage independent balloon 3 is a three-stage or four-stage independent balloon 3. In general, three or four stages of independent balloons 3 will meet most clinical needs.
As a preferable mode of the present embodiment, the outer diameters of the balloons 3, which are arranged in an equal-pressure expansion manner, of the multiple independent stages sequentially increase from front to back in an arithmetic progression manner, the outer diameter of the balloon 3 closest to the tip end of the catheter 1 is equal to 2.5mm, and the outer diameter of the balloon 3 farthest from the tip end of the catheter 1 is equal to 4 mm. The doctor can conveniently select the required balloon outer diameter according to the requirement.
As a specific scheme of this embodiment, an opaque marker band 8 is correspondingly disposed on the catheter 1 at a corresponding position of each stage of independent balloon 3. The opaque marker band 8 is arranged on the catheter 1 corresponding to the head end of the balloon 3. Opaque marker bands 8 are used for marker positioning under X-rays.
The utility model discloses a working process as follows:
in use, a PTCA guide wire 14 is fed into the distal end 13 of the main blood vessel 1, a stent is fed along the guide wire 14, the stent is initially expanded by a balloon carried by the stent, and then the balloon carried by the stent is withdrawn. At the post-expansion stage of the stent, the utility model discloses a special sacculus is sent into along seal wire 14, further expands the stent at the near-end 12 of bifurcation ridge 11 for the normal work of limit branch blood vessel 10 is guaranteed to the support mesh grow. During expansion, according to the specific situation of the proximal end 12, one stage of the balloons 3 in the multiple stages of independent balloons 3 is moved to a proper position of the proximal end 12, the control valve 6 corresponding to the balloon 3 is opened, the balloon 3 is inflated and expanded, and the stent is expanded. The operation type is suitable for treating coronary artery bifurcation lesions, particularly bifurcation lesions needing to be treated by a Crush operation type, realizes one-time expansion molding of the stent, realizes perfect coverage of the stent and a bifurcation ridge 11, and ensures perfect fit of the stent and the inner wall of a proximal end 12 blood vessel.
Claims (8)
1. A special balloon for a post-dilatation phase of a coronary bifurcation lesion stent comprises a catheter (1), wherein a wire moving cavity (2) with two open ends is coaxially arranged in the catheter (1), and is characterized in that a multi-stage independent balloon (3) is sequentially arranged from front to back at the position, close to a head end, of the catheter (1);
the outer diameter of the multistage independent sacculus (3) after isobaric expansion is sequentially increased from front to back, and each stage of independent sacculus (3) is cylindrical after isobaric expansion, so that the multistage independent sacculus (3) is arranged in a stepped shaft shape after isobaric expansion; the end surfaces of two adjacent balloons (3) which are in contact are integrally connected, so that after the multistage independent balloons (3) are expanded in an isobaric manner, a balloon shoulder (4) is formed between the two adjacent balloons (3);
each stage of independent saccule (3) is connected with one end of an inflation tube (5), the other end of each inflation tube (5) extends out of the tail end of the catheter (1) and is connected with a control valve (6), and the control valves (6) are connected with the same pressure pump (7).
2. The special balloon for post-stenting dilatation phase of coronary bifurcation according to claim 1, characterized in that the inflation tube (5) is arranged inside the wall of the catheter (1).
3. The special balloon for post-stenting dilatation phase of coronary bifurcation according to claim 1, characterized by the fact that said multiple independent balloons (3) are of equal axial length.
4. The balloon dedicated to the post-stenting dilatation phase of a coronary bifurcation according to claim 3, characterized in that said multi-stage independent balloon (3) has an axial length equal to 5 mm.
5. The special balloon for post-stenting dilatation phase of coronary bifurcation according to claim 1, characterized in that the multi-stage independent balloon (3) is a three-stage or four-stage independent balloon (3).
6. The special balloon for post-dilatation phase of coronary bifurcation lesion stent according to claim 1, wherein the external diameters of the multi-stage independent balloon (3) after isobaric expansion are sequentially increased in an arithmetic progression from front to back, the external diameter of the balloon (3) closest to the head end of the catheter (1) is equal to 2.5mm, and the external diameter of the balloon (3) farthest from the head end of the catheter (1) is equal to 4 mm.
7. The special balloon for post-dilatation of coronary bifurcation lesion stent as claimed in claim 1, wherein the catheter (1) at the corresponding position of each stage of independent balloon (3) is correspondingly provided with an opaque marker band (8).
8. The special balloon for post-dilatation of coronary bifurcation lesion stent according to claim 7, wherein the opaque marker band (8) is arranged on the catheter (1) corresponding to the most proximal end of the balloon (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920423672.1U CN210131240U (en) | 2019-03-29 | 2019-03-29 | Special sacculus of coronary artery bifurcation lesion support postdilatation stage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920423672.1U CN210131240U (en) | 2019-03-29 | 2019-03-29 | Special sacculus of coronary artery bifurcation lesion support postdilatation stage |
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| Publication Number | Publication Date |
|---|---|
| CN210131240U true CN210131240U (en) | 2020-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920423672.1U Expired - Fee Related CN210131240U (en) | 2019-03-29 | 2019-03-29 | Special sacculus of coronary artery bifurcation lesion support postdilatation stage |
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| CN (1) | CN210131240U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111973867A (en) * | 2020-08-28 | 2020-11-24 | 河南科技大学第一附属医院 | Balloon for preventing blood vessel from being broken and using method |
| CN116271444A (en) * | 2022-11-25 | 2023-06-23 | 广州易介医疗科技有限公司 | Balloon type auxiliary catheter and use method thereof |
-
2019
- 2019-03-29 CN CN201920423672.1U patent/CN210131240U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111973867A (en) * | 2020-08-28 | 2020-11-24 | 河南科技大学第一附属医院 | Balloon for preventing blood vessel from being broken and using method |
| CN116271444A (en) * | 2022-11-25 | 2023-06-23 | 广州易介医疗科技有限公司 | Balloon type auxiliary catheter and use method thereof |
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|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20200310 Termination date: 20210329 |