A hollow type coronary artery dilatation balloon

By incorporating a hollow tube and hollow circular rod within the coronary artery dilation balloon, multiple chambers are formed to ensure blood flow, thus resolving the blockage problem during existing balloon dilation, reducing surgical risks, and achieving safer vascular dilation treatment.

CN224523788UActive Publication Date: 2026-07-21上海市松江区泗泾医院
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
上海市松江区泗泾医院
Filing Date
2025-04-25
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing coronary artery dilation balloons are prone to causing short-term blockage of blood vessels during use, increasing surgical risks and potentially leading to adverse consequences such as local ischemia and myocardial damage.

Method used

A hollow coronary artery dilation balloon was designed, with an auxiliary device between the inner wall and the guidewire, including a hollow tube and a hollow circular rod. Multiple chambers are formed inside the balloon by the adjustment device to ensure blood flow, and the balloon can move smoothly in the blood vessel through the flexible metal guidewire and protective cover.

Benefits of technology

This effectively avoids vascular blockage during dilation, reduces the risk of local ischemia and myocardial damage, and improves the safety and controllability of the surgery.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a hollow type's coronary artery dilatation balloon relates to artery dilatation balloon field, the utility model discloses an auxiliary device is set up, can be kept up in the process of using artery dilatation balloon main part to the patient and treating, can be kept up to the inner wall of artery dilatation balloon main part through hollow pipe and hollow circular ring pole, make its compartment formation three chambers, the inner wall of hollow circular ring pole can be convenient to the inside of artery dilatation balloon main part and inject air and liquid and make it swell, and hollow pipe can keep blood flow in the process of blood vessel operation, can therefore ensure that the process of operation can be more convenient, simple to solve the problem that artery balloon main part is short -time completely blocked when dilating, avoid the problem of appearing local ischemia, myocardial damage and ventricular fibrillation etc. when artery dilatation balloon main part dilates, reduce the risk probability in the process of operation.
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Description

Technical Field

[0001] This utility model relates to the field of arterial dilation balloons, and in particular to a hollow coronary artery dilation balloon. Background Technology

[0002] An arterial dilation balloon is a medical device primarily used to treat conditions such as narrowing or blockage of arteries, typically for coronary artery disease or peripheral artery disease. It works by inserting a specially designed balloon into the narrowed artery, using the balloon's inflation to dilate the blood vessel and restore blood flow.

[0003] When using a coronary artery dilation balloon to treat patients, the existing coronary artery dilation balloon bodies are directly wrapped around the outer surface of the guidewire without any gaps in between. During the process of inflating the balloon body with gas and dilating the blood vessel, the blood vessel may become completely blocked in a short time. If the dilation time is not well controlled, it can easily lead to a series of adverse consequences such as local ischemia, myocardial damage, and ventricular fibrillation, increasing the probability of risks during the operation. Utility Model Content

[0004] The technical problem this invention aims to solve is that, during the treatment of patients using an arterial dilation balloon, existing coronary artery dilation balloons are directly wrapped around the outer surface of the guidewire without any gaps in between. When gas is injected into the arterial dilation balloon to inflate it and dilate the blood vessels, the blood vessels may become completely blocked in a short time. If the dilation time is not well controlled, it can easily lead to a series of adverse consequences such as local ischemia, myocardial damage, and ventricular fibrillation, increasing the probability of risks during the procedure.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a hollow coronary artery dilator balloon, including an artery dilator balloon body and two guidewires. An auxiliary device is provided between the inner wall of the artery dilator balloon body and the guidewires. The auxiliary device includes a hollow tube and a hollow circular rod. An adjustment device is provided between the outer surface of the hollow circular rod and the inner wall of the artery dilator balloon body. The auxiliary device can suspend the inner wall of the artery dilator balloon body through the hollow tube and the hollow circular rod to maintain blood flow during vascular surgery. The adjustment device can inflate the artery dilator balloon body at different positions according to the actual surgical needs.

[0006] Preferably, both ends of the hollow tube are symmetrically fixedly connected with protrusions on their outer surfaces, and the inner walls of the protrusions are connected to the inner walls of the hollow tube. The outer surface of the hollow ring rod is symmetrically provided with a number of rectangular holes. The hollow tube and the number of protrusions are respectively fixedly installed in the inner walls of the hollow ring rod and the inner walls of the number of rectangular holes. The inner walls of both ends of the arterial dilation balloon body are fixedly installed on the outer surface of the hollow ring rod located between the number of opposite rectangular holes. Both guidewires are inserted through the inner wall of the hollow ring rod.

[0007] The aforementioned components achieve the following effects: By setting up auxiliary devices, during the treatment of patients using the arterial dilation balloon body, the inner wall of the arterial dilation balloon body can be suspended through the hollow tube and hollow circular rod, dividing it into three chambers. The inner wall of the hollow circular rod allows for easy injection of air and liquid into the arterial dilation balloon body to cause expansion, while the hollow tube ensures blood flow during vascular surgery. Therefore, it can ensure that the problem of coronary arteries being completely blocked for a short period of time during the arterial balloon body dilation can be solved relatively easily and simply during the operation, avoiding problems such as local ischemia, myocardial damage, and ventricular fibrillation during the arterial dilation balloon body dilation, and reducing the probability of risks during the operation.

[0008] Preferably, a protective cover is symmetrically fixedly installed on the outer surface of the hollow circular rod, and the diameter of the end of the protective cover closer to the body of the arterial dilation balloon is larger than that of the other end.

[0009] The effect achieved by the above components is that by setting up a protective shield, both ends of the main body of the arterial dilation balloon can be protected, making both ends tapered and inclined, so that it can be more smoothly inserted into the patient's artery along with the guidewire.

[0010] Preferably, a plurality of ball bearings are rotatably mounted on the outer surface of the protective cover, and the plurality of ball bearings are arranged at equal intervals.

[0011] The effect achieved by the above components is that by setting ball bearings, the contact friction on the outer surface of the protective cover can be reduced, making it easier for the protective cover to move in the arterial blood vessels.

[0012] Preferably, the guide wire, hollow tube, and hollow ring rod are all made of flexible metal material.

[0013] The effect achieved by the above components is that by using flexible metal materials to make guide wires, hollow tubes and hollow circular rods, they can be made to follow the curvature of the blood vessel during use, while also having a certain degree of toughness and strength, so that they are not easily flattened by excessive pressure in the blood vessel.

[0014] Preferably, the adjusting device includes two adjusting plates. The inner wall of the hollow ring rod has through holes symmetrically arranged in a central manner. The inner walls of the two adjusting plates at both ends are slidably connected to the outer surfaces of the inner wall of the hollow ring rod located on both sides of the through holes. An operating rod is fixedly connected to one side of the adjusting plate. The operating rod extends through one end of the hollow ring rod. A partition is fixedly connected to the inner wall of the arterial dilation balloon body between the two through holes.

[0015] The effect achieved by the above-mentioned components is as follows: By setting the adjustment device, when inflating a specific part of the arterial dilation balloon body according to surgical needs, one only needs to manually hold the operating rod on the adjustment plate at the corresponding through hole and pull it to one end. This allows the adjustment plate to slide open to one end within the inner wall of the hollow ring rod, facilitating the entry of air or liquid injected into the hollow ring rod through the through hole into the corresponding chamber inside the arterial dilation balloon body separated by the partition, causing it to expand. This facilitates use during surgery. It should be noted that, to avoid cross-infection, the arterial dilation balloon body is usually a disposable medical device, so the adjustment plate does not need to be reset.

[0016] Preferably, one end of the operating lever is fixedly connected to a pull ring, and the pull ring has a circular cross-section.

[0017] The effect achieved by the above components is that by setting a pull ring, the contact area at one end of the operating lever can be increased, making it easier to manually hold and pull one end.

[0018] Preferably, one side of the adjusting plate is fixed to the inner wall of the hollow circular rod by an adhesive.

[0019] The effect achieved by the above components is as follows: before the main body of the arterial dilation balloon is used, one side of the adjustment plate is fixed to the inner wall of the hollow ring rod with adhesive, which makes it easy to block the through hole. When used later, the adjustment plate can be opened by simply pulling the operating rod.

[0020] The beneficial effects of this utility model are:

[0021] By setting up an auxiliary device, during the treatment of patients using the arterial dilation balloon, the inner wall of the arterial dilation balloon can be suspended by a hollow tube and a hollow circular rod, dividing it into three chambers. The inner wall of the hollow circular rod allows for easy injection of air and liquid into the arterial dilation balloon to cause it to expand, while the hollow tube ensures blood flow during vascular surgery. Therefore, it can more easily and simply solve the problem of coronary artery blockage during arterial balloon dilation, avoiding problems such as local ischemia, myocardial damage, and ventricular fibrillation during arterial balloon dilation, and reducing the probability of risks during the operation. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is a three-dimensional structural diagram of the main body of the arterial dilation balloon of this utility model;

[0025] Figure 3 This is a three-dimensional structural diagram of the hollow tube section of this utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of the hollow circular ring rod of this utility model;

[0027] Figure 5 This is a three-dimensional structural diagram of the adjusting plate of this utility model.

[0028] Legend: 1. Main body of arterial dilation balloon; 2. Auxiliary device; 3. Adjustment device; 4. Guide wire; 21. Hollow tube; 22. Protrusion; 23. Hollow circular rod; 24. Rectangular hole; 25. Protective cover; 26. Ball bearing; 31. Through hole; 32. Adjustment plate; 33. Operating rod; 34. Pull ring; 35. Partition. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to 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 this utility model based on the specific circumstances.

[0031] Figure 1-5The diagram shows a hollow coronary artery dilation balloon, comprising an artery dilation balloon body 1 and two guidewires 4. An auxiliary device 2 is disposed between the inner wall of the artery dilation balloon body 1 and the guidewires 4. The auxiliary device 2 includes a hollow tube 21 and a hollow circular rod 23. An adjustment device 3 is disposed between the outer surface of the hollow circular rod 23 and the inner wall of the artery dilation balloon body 1. The auxiliary device 2 can elevate the inner wall of the artery dilation balloon body 1 through the hollow tube 21 and the hollow circular rod 23 to maintain blood flow during vascular surgery. The adjustment device 3 can inflate the artery dilation balloon body 1 at different positions according to the actual surgical needs.

[0032] Figure 1-5 The hollow tube 21 shown has protrusions 22 symmetrically fixedly connected to both outer surfaces. The inner wall of the protrusions 22 is connected to the inner wall of the hollow tube 21. The outer surface of the hollow ring rod 23 has several rectangular holes 24 symmetrically opened. The hollow tube 21 and several protrusions 22 are respectively fixedly installed in the inner wall of the hollow ring rod 23 and the inner wall of the several rectangular holes 24. The inner walls of both ends of the arterial dilation balloon body 1 are fixedly installed on the outer surface of the hollow ring rod 23 located between several opposite rectangular holes 24. Both guide wires 4 are inserted through the inner wall of the hollow ring rod 23. During the treatment of patients using the arterial dilation balloon body 1, a guidewire 4 is typically inserted into the patient's artery. The guidewire 4, along with the hollow ring rod 23, the arterial dilation balloon body 1, and the hollow tube 21, is then inserted into the artery at the location requiring treatment. The hollow tube 21 can open the inner wall of the arterial dilation balloon body 1, ensuring unobstructed blood flow within the artery. During dilation, air or liquid is injected through one end of the hollow ring rod 23, allowing it to pass through the inner wall of the hollow ring rod 23 into the arterial dilation balloon body 1, causing it to expand and dilate the blood vessel at the treatment location. This treatment method conveniently and simply addresses the problem of temporary complete blockage of the coronary artery during arterial balloon dilation, avoiding issues such as local ischemia, myocardial damage, and ventricular fibrillation during balloon dilation, thus reducing the risk probability during the procedure.

[0033] Figure 1-5A protective cover 25 is symmetrically fixed to the outer surface of the hollow circular rod 23 shown. The diameter of the protective cover 25 at the end closest to the arterial dilation balloon body 1 is larger than that at the other end. By setting the protective cover 25, both ends of the arterial dilation balloon body 1 can be protected, making both ends tapered and inclined, allowing it to enter the patient's artery more smoothly with the guidewire 4. Several ball bearings 26 are rotatably mounted on the outer surface of the protective cover 25, and the ball bearings 26 are evenly distributed. By setting the ball bearings 26, the contact friction of the outer surface of the protective cover 25 can be reduced, facilitating the movement of the protective cover 25 in the artery. The guidewire 4, hollow tube 21, and hollow circular rod 23 are all made of flexible metal. By using flexible metal to make the guidewire 4, hollow tube 21, and hollow circular rod 23, they can bend accordingly with the curvature of the blood vessel during use, while also possessing a certain degree of toughness and strength, making them less likely to be flattened by excessive pressure in the blood vessel.

[0034] Figure 1-5 The adjustment device 3 shown includes two adjustment plates 32. The inner wall of the hollow ring rod 23 is centrally symmetrically provided with through holes 31. The inner walls of the two ends of the adjustment plates 32 are slidably connected to the outer surfaces of the inner walls of the hollow ring rod 23 on both sides of the through holes 31. An operating rod 33 is fixedly connected to one side of the adjustment plate 32. The operating rod 33 extends through one end of the hollow ring rod 23. A partition 35 is fixedly connected to the inner wall of the arterial dilation balloon body 1 between the two through holes 31. Depending on the surgical needs, when inflating a specific part of the arterial dilation balloon body 1, simply hold the operating rod 33 on the adjustment plate 32 at the corresponding through hole 31 and pull it to one end. This will slide the adjustment plate 32 open to one end within the inner wall of the hollow ring rod 23, allowing the air or liquid injected into the hollow ring rod 23 to enter the corresponding chamber inside the arterial dilation balloon body 1 separated by the partition 35 through the through hole 31, causing it to expand and facilitating its use during surgery. It should be noted that to avoid cross-infection, the arterial dilation balloon body 1 is usually a disposable medical device, so the adjustment plate 32 does not need to be reset.

[0035] Figure 1-5 One end of the operating lever 33 is fixedly connected to a pull ring 34, which has a circular cross-section. The pull ring 34 increases the contact area at one end of the operating lever 33, making it easier to manually grasp and pull it. One side of the adjusting plate 32 is fixed to the inner wall of the hollow circular rod 23 with adhesive. Before the arterial dilation balloon body 1 is used, one side of the adjusting plate 32 is fixed to the inner wall of the hollow circular rod 23 with adhesive, facilitating the blocking of the through hole 31. In subsequent use, simply pulling the operating lever 33 will open the adjusting plate 32.

[0036] Working principle: During the treatment of a patient using the arterial dilation balloon body 1, a guidewire 4 is typically inserted into the patient's artery. The guidewire 4, along with the hollow ring rod 23, the arterial dilation balloon body 1, and the hollow tube 21, is then inserted into the artery at the location requiring treatment. The hollow tube 21 can open the inner wall of the arterial dilation balloon body 1, ensuring unobstructed blood flow within the artery. During dilation, air or liquid is injected through one end of the hollow ring rod 23, allowing it to pass through the inner wall of the hollow ring rod 23 into the arterial dilation balloon body 1, causing it to expand and dilate the blood vessel at the treatment location. This treatment method conveniently and simply addresses the problem of temporary complete blockage of the coronary artery during arterial balloon dilation, avoiding issues such as local ischemia, myocardial damage, and ventricular fibrillation during balloon dilation, thus reducing the risk probability during the procedure.

[0037] Depending on the surgical requirements, when inflating a specific part of the arterial dilation balloon body 1, simply hold the operating rod 33 on the adjustment plate 32 at the corresponding through hole 31 and pull it to one end. This will slide the adjustment plate 32 open to one end within the inner wall of the hollow ring rod 23, allowing the air or liquid injected into the hollow ring rod 23 to enter the corresponding chamber inside the arterial dilation balloon body 1 separated by the partition 35 through the through hole 31, causing it to expand and facilitating its use during surgery. It should be noted that to avoid cross-infection, the arterial dilation balloon body 1 is usually a disposable medical device, so the adjustment plate 32 does not need to be reset.

[0038] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A hollow coronary artery dilation balloon, comprising an arterial dilation balloon body (1) and two guidewires (4), characterized in that: An auxiliary device (2) is provided between the inner wall of the arterial dilation balloon body (1) and the guide wire (4). The auxiliary device (2) includes a hollow tube (21) and a hollow ring rod (23). An adjustment device (3) is provided between the outer surface of the hollow ring rod (23) and the inner wall of the arterial dilation balloon body (1). The auxiliary device (2) can suspend the inner wall of the arterial dilation balloon body (1) through the hollow tube (21) and the hollow ring rod (23) to maintain blood flow during vascular surgery. The adjustment device (3) can inflate the arterial dilation balloon body (1) at different positions according to the actual surgical needs.

2. A hollow coronary artery dilation balloon according to claim 1, characterized in that: Both ends of the hollow tube (21) are symmetrically fixedly connected with protrusions (22). The inner wall of the protrusions (22) is connected to the inner wall of the hollow tube (21). The outer surface of the hollow ring rod (23) is symmetrically provided with several rectangular holes (24). The hollow tube (21) and several protrusions (22) are respectively fixedly installed in the inner wall of the hollow ring rod (23) and the inner wall of several rectangular holes (24). The inner walls of both ends of the arterial dilation balloon body (1) are fixedly installed on the outer surface of the hollow ring rod (23) located between several opposite rectangular holes (24). Both guide wires (4) are inserted through the inner wall of the hollow ring rod (23).

3. A hollow coronary artery dilation balloon according to claim 2, characterized in that: A protective cover (25) is symmetrically fixed on the outer surface of the hollow circular rod (23). The diameter of the protective cover (25) at one end near the main body (1) of the arterial dilation balloon is larger than that at the other end.

4. A hollow coronary artery dilation balloon according to claim 3, characterized in that: The outer surface of the protective cover (25) is rotatably equipped with a number of ball bearings (26), and the ball bearings (26) are arranged at equal intervals.

5. A hollow coronary artery dilation balloon according to claim 1, characterized in that: The guide wire (4), hollow tube (21) and hollow ring rod (23) are all made of flexible metal material.

6. A hollow coronary artery dilation balloon according to claim 1, characterized in that: The adjustment device (3) includes two adjustment plates (32). The inner wall of the hollow ring rod (23) is provided with through holes (31) in a centrally symmetrical manner. The inner walls of the two adjustment plates (32) are slidably connected to the outer surfaces of the inner wall of the hollow ring rod (23) on both sides of the through holes (31). An operating rod (33) is fixedly connected to one side of the adjustment plate (32). The operating rod (33) extends through one end of the hollow ring rod (23). A partition (35) is fixedly connected to the inner wall of the arterial dilation balloon body (1) between the two through holes (31).

7. A hollow coronary artery dilation balloon according to claim 6, characterized in that: One end of the operating lever (33) is fixedly connected to a pull ring (34), and the cross-section of the pull ring (34) is circular.

8. A hollow coronary artery dilation balloon according to claim 7, characterized in that: One side of the adjusting plate (32) is fixed to the inner wall of the hollow circular rod (23) by adhesive.