CN219166778U - Aortic passageway balloon with lining support - Google Patents
Aortic passageway balloon with lining support Download PDFInfo
- Publication number
- CN219166778U CN219166778U CN202223379088.1U CN202223379088U CN219166778U CN 219166778 U CN219166778 U CN 219166778U CN 202223379088 U CN202223379088 U CN 202223379088U CN 219166778 U CN219166778 U CN 219166778U
- Authority
- CN
- China
- Prior art keywords
- balloon
- conveying rod
- channel
- stent
- aortic
- 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
Landscapes
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The utility model relates to an aortic channel balloon with a lining support. The device comprises a conveying rod, a metal bracket, an annular balloon and an outer sheath tube, wherein a guide wire channel is arranged in the middle of the interior of the conveying rod, and an injection channel is arranged on one side of the guide wire channel; the metal support surrounds and is fixed at the front part of the conveying rod, the metal support comprises a net tubular support, and two ends of the net tubular support are respectively connected with the conveying rod through a plurality of metal wires; the annular balloon is sleeved outside the net tubular support, a flexible injection pipeline is arranged between the conveying rod and the annular balloon, one end of the flexible injection pipeline is communicated with the injection channel of the conveying rod, and the other end of the flexible injection pipeline is communicated with the inside of the annular balloon after passing through the net tubular support; the outer sheath is sleeved on the conveying rod and can move back and forth along the conveying rod.
Description
Technical Field
The utility model relates to a vascular stent, in particular to an aortic channel balloon with a lining stent.
Background
Most of the existing balloons used for the expansion of the intra-aortic channel are of cylindrical design, the balloon completely blocks blood flow of blood vessels in the process of balloon expansion, the application of the balloon in some special parts is limited to a certain extent, for example, in the ascending aortic part, the balloon expansion can completely block the blood vessels, and the heart is in an outflow obstruction state, so that the rapid increase of ventricular pressure, circulatory collapse and even heart beat occur; in the process of blocking blood vessels, the whole body viscera are in an ischemia state, and the brain is extremely sensitive to ischemia, so that the related ischemia changes can be generated after more than 10 seconds of ischemia, and 5-10 minutes of ischemia can possibly cause irreversible damage to the brain and other important viscera. Meanwhile, the ascending aorta pressure is extremely high; and simultaneously, the balloon is easy to retreat and shift in the expanding process due to the excessive pressure, so that the vessel wall is damaged. If the balloon is used for expanding in the stent, the stent can be driven to shift, so that vascular injury and treatment failure are caused.
In the prior art, for example, patent application No. 202110014659.2 discloses an aortic passageway balloon, which is mainly provided with a one-way valve inside the balloon to maintain one-way blood flow during the expansion of the expanded aortic valve annulus. Because the blood flow sustaining passageway lacks internal support, the balloon will collapse inwardly rather than expand outwardly during inflation, making it difficult to achieve therapeutic demands. At the same time the design is too complex to be suitable for vasodilation in non-aortic valve areas.
Disclosure of Invention
The utility model aims to solve the problems in the prior art, and provides the aortic channel balloon with the lining support, which does not need to completely block blood flow in the balloon expanding process, does not influence blood supply of corresponding organs, can relieve pressure on a heart and impact force received by the balloon in the expanding process, and increases the internal supporting force of the balloon.
The utility model is realized in the following way: the aortic passageway saccule with the lining support comprises a conveying rod, a metal support, an annular saccule and an outer sheath tube, wherein a guide wire passageway is arranged in the middle of the interior of the conveying rod, and an injection passageway is arranged at one side of the guide wire passageway;
the metal bracket surrounds and is fixed at the front part of the conveying rod, the metal bracket comprises a compressible net tubular bracket, and two ends of the net tubular bracket are respectively connected with the conveying rod through a plurality of metal wires; the annular balloon is sleeved outside the net tubular support, a flexible injection pipeline is arranged between the conveying rod and the annular balloon, one end of the flexible injection pipeline is communicated with the injection channel of the conveying rod, and the other end of the flexible injection pipeline is communicated with the inside of the annular balloon after passing through the net tubular support; the outer sheath tube is sleeved on the conveying rod and can move back and forth along the conveying rod, and the metal support and the annular balloon are in a compressed shape when being positioned in the outer sheath tube.
The number of the metal wires is 8-24, and gaps are arranged between every two adjacent 2 metal wires.
The metal wire is connected with the conveying rod through a fixing ring, and the fixing ring is welded with the conveying rod and the metal wire respectively.
The inner diameter of the net tubular support is 20-40 mm when the net tubular support is unfolded.
The tail end of the injection channel is positioned at one side of the tail end of the conveying rod, and an injection interface is arranged at the tail end of the injection channel.
The number of the flexible injection pipelines is 1 or 2.
The flexible injection pipeline is a plastic hose.
The section of the injection channel is round, elliptic or crescent.
The axial length of the annular balloon is smaller than that of the net tubular stent.
The outer diameter of the annular balloon after being expanded is 26-52 mm.
The beneficial effects of the utility model are as follows: the annular balloon is sleeved outside the metal bracket in an annular manner, and when the metal bracket and the annular balloon are unfolded, blood flow can freely flow through a gap between the net tubular bracket of the metal bracket and the metal wire, so that the blood flow is not blocked, the risk of ischemia of related organs is avoided, and the conditions of heart outflow obstruction, and circulatory collapse caused by increase of load after heart are avoided when large blood vessels are expanded; the annular saccule can be expanded for a long time so as to fully achieve the aim of treatment; meanwhile, the hollow annular structure of the annular balloon can effectively reduce the cross-sectional area of blood impact, and the annular balloon cannot displace at the proximal end due to blood in the expanding process, so that the possibility of treating complications is reduced; the metal bracket can provide enough radial supporting force to ensure that the annular balloon has enough expanding force.
Drawings
FIG. 1 is a schematic illustration of the structural relationship between a delivery rod, a metallic stent and an outer sheath of the present utility model.
Fig. 2 is a schematic view of the structure of the front part of the present utility model.
FIG. 3 is a schematic representation of the cross-sectional positional relationship of the delivery rod, guidewire channel, injection channel, metal stent and annular balloon of the present utility model.
Wherein: 1. a conveying rod; 2. a metal bracket; 3. an annular balloon; 4. an outer sheath; 5. a guidewire channel; 6. an injection channel; 7. a mesh-like support; 8. a metal wire; 9. a fixing ring; 10. a flexible injection conduit; 11. an injection port.
Detailed Description
According to fig. 1-3, the aortic channel balloon with the lining support comprises a conveying rod 1, a metal support 2, an annular balloon 3 and an outer sheath tube 4, wherein a guide wire channel 5 is arranged in the middle of the interior of the conveying rod 1, the tail end of the guide wire channel 5 is positioned at the tail end of the conveying rod 1, the guide wire channel 5 is used for placing guide wires, one side of the guide wire channel 5 is provided with an injection channel 6, and the section of the injection channel 6 is round, oval or crescent; the tail end of the injection channel 6 is positioned at one side of the tail end of the conveying rod 1, and the tail end of the injection channel 6 is provided with an injection interface 11.
The metal bracket 2 surrounds and is fixed at the front part of the conveying rod 1, the metal bracket 2 comprises a compressible net-shaped bracket 7, the structure of the net-shaped bracket 7 is the same as that of the existing net-shaped vascular bracket, the net-shaped vascular bracket is in a woven circular tube structure, and two ends of the net-shaped bracket 7 are respectively connected with the conveying rod 1 through a plurality of metal wires 8; preferably, the metal wire 8 is connected to the conveying rod 1 through a fixing ring 9, and the fixing ring 9 is welded with the conveying rod 1 and the metal wire 8 respectively. The total number of wires 8 is 8-24, preferably 12-16, with a gap between each adjacent 2 wires to allow free flow of blood through the metal stent 2.
The axial length of the annular balloon 3 is smaller than the axial length of the mesh tubular stent 7. The annular balloon 3 is sleeved outside the net tubular support 7, a flexible injection pipeline 10 is arranged between the conveying rod 1 and the annular balloon 3, one end of the flexible injection pipeline 10 is communicated with the injection channel 6 of the conveying rod 1, and the other end of the flexible injection pipeline 10 is communicated with the inside of the annular balloon 3 after passing through the net tubular support 7; the number of the flexible injection pipes 10 is 1 or 2. The flexible injection tubing 10 is preferably a plastic hose. The outer sheath tube 4 is sleeved on the conveying rod 1 and can move back and forth along the conveying rod 1, and the metal support 2 and the annular balloon 3 are in a compressed shape when the metal support 2 and the annular balloon 3 are positioned in the outer sheath tube 4. The inner diameter of the net tubular stent 7 is 20-40 mm, preferably 30mm when being unfolded. The outer diameter of the annular balloon 3 after expansion is 26-52 mm, preferably 40mm.
When the utility model is used, under the compression state of the metal bracket 2 and the contraction state of the annular balloon 3, the outer sheath tube 4 is sleeved outside the metal bracket 2 and the annular balloon 3, the metal bracket 2 is released by withdrawing the outer sheath tube 4 after the guide wire channel 5 is used for guiding the metal bracket to reach a lesion part through the guide wire, the contrast agent and the physiological saline mixture are injected into the annular balloon 3 through the injection channel 6 and the flexible injection pipeline 10 through the injection interface 11, and the annular balloon 3 is filled, so that the annular balloon 3 is inflated, and the treatment purpose is achieved.
In the recovery of the present utility model, the inner contrast agent of the annular balloon 3 and the physiological saline mixture are mixed. The annular saccule 3 is pushed to move the outer sheath 4 forward after being completely contracted after being extracted through the flexible injection pipeline 10, the injection channel 6 and the injection interface 11, the metal wire 8 is extruded and deformed to drive the net tubular support 7 to be compressed and enter the outer sheath 4, and finally the utility model is withdrawn.
Claims (10)
1. An aortic passageway balloon with a lining stent, characterized in that: the device comprises a conveying rod, a metal bracket, an annular saccule and an outer sheath tube, wherein a guide wire channel is arranged in the middle of the interior of the conveying rod, and an injection channel is arranged on one side of the guide wire channel;
the metal bracket surrounds and is fixed at the front part of the conveying rod, the metal bracket comprises a compressible net tubular bracket, and two ends of the net tubular bracket are respectively connected with the conveying rod through a plurality of metal wires; the annular balloon is sleeved outside the net tubular support, a flexible injection pipeline is arranged between the conveying rod and the annular balloon, one end of the flexible injection pipeline is communicated with the injection channel of the conveying rod, and the other end of the flexible injection pipeline is communicated with the inside of the annular balloon after passing through the net tubular support; the outer sheath tube is sleeved on the conveying rod and can move back and forth along the conveying rod, and the metal support and the annular balloon are in a compressed shape when being positioned in the outer sheath tube.
2. The stent-lined aortic channel balloon of claim 1, wherein: the number of the metal wires is 8-24, and gaps are arranged between every two adjacent 2 metal wires.
3. The stent-lined aortic channel balloon of claim 1, wherein: the metal wire is connected with the conveying rod through a fixing ring, and the fixing ring is welded with the conveying rod and the metal wire respectively.
4. The stent-lined aortic channel balloon of claim 1, wherein: the inner diameter of the net tubular support is 20-40 mm when the net tubular support is unfolded.
5. The stent-lined aortic channel balloon of claim 1, wherein: the tail end of the injection channel is positioned at one side of the tail end of the conveying rod, and an injection interface is arranged at the tail end of the injection channel.
6. The stent-lined aortic channel balloon of claim 1, wherein: the number of the flexible injection pipelines is 1 or 2.
7. The stent-lined aortic channel balloon of claim 1 or 6, wherein: the flexible injection pipeline is a plastic hose.
8. The stent-lined aortic channel balloon of claim 1, wherein: the section of the injection channel is round, elliptic or crescent.
9. The stent-lined aortic channel balloon of claim 1, wherein: the axial length of the annular balloon is smaller than that of the net tubular stent.
10. The stent-lined aortic channel balloon of claim 1, wherein: the outer diameter of the annular balloon after being expanded is 26-52 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223379088.1U CN219166778U (en) | 2022-12-16 | 2022-12-16 | Aortic passageway balloon with lining support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223379088.1U CN219166778U (en) | 2022-12-16 | 2022-12-16 | Aortic passageway balloon with lining support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219166778U true CN219166778U (en) | 2023-06-13 |
Family
ID=86667232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223379088.1U Active CN219166778U (en) | 2022-12-16 | 2022-12-16 | Aortic passageway balloon with lining support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219166778U (en) |
-
2022
- 2022-12-16 CN CN202223379088.1U patent/CN219166778U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6626861B1 (en) | Balloon catheter apparatus and method | |
| US5868708A (en) | Balloon catheter apparatus and method | |
| CN103330989B (en) | For the top propulsion plant of motion in passage | |
| US8100855B2 (en) | Methods and devices for eluting agents to a vessel | |
| AU2019201522A1 (en) | Intra-aortic balloon apparatus, assist devices and methods for improving flow, counterpulsation and haemodynamics | |
| US10252036B2 (en) | Thrombus removal apparatus and method | |
| US20080319415A1 (en) | Balloon Angioplasty Device with Distal Protection Capability | |
| CN102256659A (en) | Medical device, method and system for temporary occlusion of an opening in a lumen of a body | |
| CN102858272A (en) | Expansion device for treatment of vascular passageways | |
| US20230041152A1 (en) | Vascular treatment devices, systems, and methods of use | |
| US20090105642A1 (en) | Low profile agent delivery perfusion catheter having reversibly expanding frames | |
| JPH06339530A (en) | Single luminal type wire loaded iab catheter | |
| US20210308433A1 (en) | Vascular treatment devices and associated systems and methods of use | |
| CN113907837A (en) | Vascular opening device | |
| US20140243843A1 (en) | Rapid expansion balloon catheter | |
| CN219166778U (en) | Aortic passageway balloon with lining support | |
| CN216439269U (en) | Vascular opening device | |
| CN111529899A (en) | Expandable balloon | |
| CN212940974U (en) | Balloon dilatation catheter | |
| CN111714756A (en) | Balloon dilatation catheter | |
| CN114983647A (en) | Plastic expander for expanding arterial stent | |
| CN218979357U (en) | Plastic dilator for dilating arterial stent | |
| CN212662448U (en) | Expandable balloon | |
| CN112263362A (en) | Recoverable covered stent | |
| CN106726040B (en) | Bracket sacculus is set with luggage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |