Coronary balloon dilatation catheter

Abstract

The utility model relates to medical instrument technical field, especially a kind of coronary artery balloon dilatation catheter, including catheter, the one end of catheter is fixedly installed with balloon, the inside of catheter is provided with first hose and second hose, the one end of first hose in catheter passes through catheter wall and is communicated with balloon, the inside of second hose is provided with wire harness, the one end in catheter of second hose is provided with camera, the one end of first hose in catheter outside is provided with airtight valve;The outside of balloon is equipped with expansion support. By adopting the above technical scheme, the device can be visually observed when installing expansion catheter, and when the pressure is up to standard, the first hose is closed by airtight valve, so that the expansion support can be stably left in the position to be installed.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a coronary balloon dilation catheter. Background Technology

[0002] Coronary artery disease is a common cardiovascular disease, and its interventional treatment technology has developed rapidly. In percutaneous coronary intervention (PCI), the balloon dilation catheter is one of the core devices, mainly used for dilation of stenotic vascular sites and stent implantation.

[0003] Currently, clinical procedures mainly rely on X-ray angiography for localization. However, two-dimensional imaging is insufficient to accurately determine the characteristics of vascular wall lesions and stent apposition, easily leading to problems such as incomplete stent expansion or poor apposition. Furthermore, the commonly used pressure pump control method suffers from response lag; once the balloon reaches the predetermined pressure, the operator must manually close the valve, a process that can cause pressure fluctuations and affect the stability of stent deployment. This is particularly problematic when treating calcified lesions, where inaccurate pressure control can easily cause vascular damage. Most balloon catheters on the market only have a single expansion function, requiring additional instruments for stent deployment, which not only increases the number of surgical steps but also raises the risk of complications. Some catheters that attempt to integrate imaging functions often suffer from complex structures and excessively large diameters, making it difficult to pass through severely stenotic lesions.

[0004] The aforementioned existing technical solutions have the following drawbacks: traditional balloon dilation processes suffer from a lack of real-time visual guidance, insufficient precision in balloon pressure control, and low functional integration of existing products. Utility Model Content

[0005] The purpose of this invention is to provide a coronary balloon dilation catheter to solve the problems existing in the prior art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A coronary balloon dilation catheter includes a catheter, a balloon fixedly mounted at one end of the catheter, a first tubing and a second tubing disposed inside the catheter, the first tubing passing through the catheter wall and communicating with the balloon at one end of the catheter, a wire harness disposed inside the second tubing, a camera disposed at one end of the second tubing inside the catheter, and an airtight valve disposed at one end of the first tubing outside the catheter; an dilation stent is fitted on the outside of the balloon.

[0007] By adopting the above technical solution, the device can be visually observed when installing the expansion conduit, and when the pressure reaches the standard, the first hose is sealed by the airtight valve, so that the expansion bracket can be stably fixed in the position to be installed.

[0008] In a further embodiment, the interior of the balloon is configured with three non-communicating compartments along the axial direction of the catheter, each compartment having a different wall thickness.

[0009] By adopting the above technical solution, the expansion of the two end chambers is achieved by controlling the wall thickness, allowing the balloon to stay in the required position. Then, the middle balloon slowly expands, allowing the dilator stent to open. When deflation occurs, the middle balloon contracts first, and the dilator stent stays on the blood vessel wall. The two end chambers then contract, firmly securing the blood vessel to the blood vessel wall.

[0010] In a further embodiment, the end of the second flexible tube where the camera is mounted is completely sealed.

[0011] In a further embodiment, one end of the catheter is connected to a blood circulation machine.

[0012] In a further embodiment, one end of the catheter-mounted balloon is configured with a sharp shape and has multiple through holes.

[0013] By adopting the above technical solution, it is easier to puncture the thrombus in the blood vessel.

[0014] In a further embodiment, the catheter, the first tubing, and the second tubing are all made of antibacterial material.

[0015] In summary, this utility model has the following beneficial effects: 1. A balloon is fixedly installed at one end of a conduit. The conduit contains a first tubing and a second tubing. The first tubing is located at one end of the conduit, passing through the conduit wall and communicating with the balloon. This configuration allows for visual observation during the installation of the dilation conduit. When the pressure reaches the target, the first tubing is sealed by an airtight valve, ensuring that the dilation support can be stably positioned at the desired installation location. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram illustrating the structure of the balloon used to demonstrate this utility model.

[0017] In the diagram, 1 is the catheter; 2 is the balloon; 3 is the first tubing; 4 is the second tubing; 5 is the camera; 6 is the airtight valve; and 7 is the dilation stent. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings.

[0019] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0020] Example 1: like Figures 1-2 As shown, a coronary balloon dilation catheter includes a catheter 1, with a balloon 2 fixedly installed at one end of the catheter 1. A first tubing 3 and a second tubing 4 are disposed inside the catheter 1. The first tubing 3, located at one end of the catheter 1, passes through the wall of the catheter 1 and communicates with the balloon 2. A wire harness is disposed inside the second tubing 4. A camera 5 is disposed at one end of the second tubing 4 inside the catheter 1. An airtight valve 6 is disposed at one end of the first tubing 3 outside the catheter 1. An dilation support 7 is fitted around the outside of the balloon 2. The interior of the balloon 2 is arranged along the axis of the catheter 1 into three non-communicating chambers, each with a different wall thickness. The end of the second tubing 4 where the camera 5 is installed is completely sealed. One end of the catheter 1 is connected to a blood circulation machine. The end of the catheter 1 where the balloon 2 is installed is sharp and has multiple through-holes. The catheter 1, the first tubing 3, and the second tubing 4 are all made of antibacterial material.

[0021] Specific implementation process: Before the operation begins, the sealing of the airtight valve 6 and the imaging quality of the camera 5 are checked. The catheter 1 is connected to the blood circulation machine to ensure that the tubing is unobstructed. Guided by a guidewire, the pointed end of the catheter 1 is inserted through the radial or femoral artery. The multiple perforations at its tip effectively reduce resistance to blood flow. During the advancement, the internal condition of the blood vessel is observed in real time through the camera 5 inside the second tubing 4 to accurately locate the lesion site. The catheter 1 is made of antibacterial material to reduce the risk of infection. After reaching the target position, it is confirmed that the dilator stent 7 is accurately aligned with the stenosis. Contrast agent is injected sequentially into the three independent chambers of the balloon 2 through the first tubing 3: the distal thin-walled chamber is dilated first to establish the initial channel. The intermediate chamber is then expanded for pre-expansion, and finally the proximal thick-walled chamber is expanded to ensure the stent is fully attached to the wall. The pressure of each chamber can be independently controlled by the airtight valve 6 to achieve precise graded expansion. When the pressure reaches the predetermined value, the airtight valve 6 is closed to maintain the pressure, allowing the expanded stent 7 to fully unfold. The stent's wall attachment is observed in real time through the camera 5. If necessary, the pressure can be adjusted for supplementary expansion. The entire process can be maintained with the help of a blood circulation machine to maintain hemodynamic stability. After confirming that the treatment effect is satisfactory, the balloon is gradually aspirated and the catheter 1 is retrieved. After use, the catheter is disposed of in accordance with the medical waste disposal procedures. Its antibacterial material can reduce the risk of biological contamination. This solution significantly improves the safety and precision of the surgery through zonal expansion and real-time visualization.

[0022] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0023] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A coronary balloon (2) dilation catheter (1), characterized in that: The device includes a catheter (1), one end of which is fixedly fitted with a balloon (2). Inside the catheter (1) are a first hose (3) and a second hose (4). The first hose (3) passes through the wall of the catheter (1) and communicates with the balloon (2). Inside the second hose (4) is a wire harness. At one end of the second hose (4) inside the catheter (1) is a camera (5). At one end of the first hose (3) outside the catheter (1) is an airtight valve (6). An expansion bracket (7) is fitted on the outside of the balloon (2).

2. The coronary balloon (2) dilation catheter (1) according to claim 1, characterized in that: The interior of the balloon (2) is arranged in three separate compartments along the axis of the catheter (1), each compartment having a different wall thickness.

3. The coronary balloon (2) dilation catheter (1) according to claim 1, characterized in that: The end of the second flexible tube (4) where the camera (5) is installed is completely closed.

4. The coronary balloon (2) dilation catheter (1) according to claim 1, characterized in that: One end of the catheter (1) is connected to the blood circulation machine.

5. The coronary balloon (2) dilation catheter (1) according to claim 1, characterized in that: The end of the catheter (1) that is fitted with the balloon (2) is made into a sharp shape and has multiple through holes.

6. The coronary balloon (2) dilation catheter (1) according to claim 1, characterized in that: The catheter (1), the first tubing (3), and the second tubing (4) are all made of antibacterial material.

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