Hollowed-out balloon blood vessel dilation balloon catheter device with blood diversion function

Abstract

A blood vessel dilatation balloon catheter device with a hollow balloon for guiding blood is mainly placed at a blocked blood vessel position, the catheter device comprises a catheter portion and a balloon portion, a conducting pipeline is formed in the catheter portion, the balloon portion is arranged at one end of the catheter portion, and the balloon portion is arranged on the catheter portion. An inflation tube is arranged in the conduction pipeline in a penetrating mode and extends into at least one inflation air bag, and at least one blood diversion channel is arranged from one end of the balloon part to the other end of the balloon part in a penetrating mode. The inflation tube inflates the balloon part to enable the balloon part to expand, the balloon part expands to block the blood vessel, and after the balloon part is inflated, the at least one blood diversion channel forms an open state and is communicated with the blood vessel, so that blood in the blood vessel continuously circulates through the at least one blood diversion channel while the catheter device expands the blood vessel. Therefore, backflow and blockage caused by blood blocking do not need to be worried about, operation errors caused by time do not need to be worried about for doctors, and temporary tissue hypoxia and ischemia do not need to be worried about for patients.

Description

Technical Field

[0001] This invention relates to a hollowed-out balloon vasodilator catheter device with blood-guiding function, specifically a technology applied in the medical field. Its main purpose is to ensure that blood can continue to flow during medical procedures, avoiding temporary blockages that could cause blood backflow or stagnation, thus ensuring that patients can maintain unobstructed blood flow during medical treatment. Background Technology

[0002] Balloon catheters are a common surgical tool in the medical field. They are mainly used to open / expand narrowed areas of blood vessels to create a passage and improve blood flow. The structure of a balloon catheter mainly consists of a flexible catheter that can be inflated and deflated at one end of an inflatable balloon. When using it, the doctor first places the uninflated balloon in the designated position, and then inflates it according to different surgical purposes to expand the lesion in the blood vessel cavity and complete the dilation treatment of the narrowed area. After that, the balloon is deflated and the catheter is removed.

[0003] However, the use of balloon catheters carries risks. In some patients, the blood vessels may rebound and restenosis after dilation, sometimes requiring multiple dilations. Ultimately, doctors may recommend placing a high-tech metal vascular stent to support the blocked or narrowed area and reduce recurrence. However, each time a balloon catheter is used, especially when treating blood vessels inside the heart, the balloon will completely fill and expand after inflation, thus blocking and dilating the blood vessel. At this time, blood flow will be obstructed by the balloon's placement. Therefore, normally, the time that the heart blood must be dilated using a balloon catheter during surgery is limited, causing a transient myocardial hypoxia of about 30 seconds. If it exceeds 30 seconds, it will cause myocardial hypoxia, unstable vital signs, and even the possibility of arrhythmia, ultimately increasing the risk of surgery.

[0004] Modern medicine has developed a method to avoid the above problems; please see [link / reference needed]. Figure 11 As shown, the pull-string structure 400 of the balloon catheter 300 is provided with a small hole 500 to facilitate blood flow. However, the diameter of the small hole 500 is currently set differently depending on the location of the organ. For example, in balloon catheter 300 surgery applied to the heart, the diameter of the small hole 500 in the pull-string structure 400 is only 0.014 cm. This small hole size is too small to allow blood to flow through the blood vessels. In the end, the surface tension at the opening of the small hole 500 will prevent it from flowing through, eventually causing blockage.

[0005] Therefore, the balloon catheters mentioned above still have many shortcomings and risks in their use. Personnel and practitioners in related fields must consider how to improve them so that doctors have more time to perform surgery, and so as not to cause risks and complications to patients, thereby ensuring and improving the safety of patients when using balloon catheters in dilation surgery. Summary of the Invention

[0006] To address the shortcomings of traditional balloon catheters used in surgery, which can easily cause vascular blockage and backflow affecting the function of peripheral organs and tissues, and the need to undertake high-risk procedures to ensure surgical success, this invention provides a hollowed-out balloon catheter device for vascular dilation with blood drainage. This device allows surgeons more time to focus on the vascular site during balloon catheter dilation procedures, eliminating concerns about blood blockage and backflow affecting the function of other organs (such as myocardial tissue), especially the heart. Furthermore, it improves patient safety and eliminates the risk of complications. The technical solution adopted by this invention to solve its technical problem is:

[0007] A hollowed-out balloon vascular dilation catheter device with blood diversion function is mainly placed at the location of a blocked blood vessel. The device includes a catheter portion and a balloon portion. The catheter portion forms a guiding channel inside, and the balloon portion is located at one end of the catheter portion. An inflation tube passes through the guiding channel and extends into the at least one inflatable balloon. At least one blood diversion channel extends from one end of the balloon portion to the other end. The inflation tube inflates the balloon portion, causing it to expand. This expansion dilates the blocked blood vessel. Simultaneously, after inflation, the at least one blood diversion channel forms a hollow, open shape and connects to the blood vessel, allowing blood to continuously flow through the at least one blood diversion channel while the catheter device dilates the blood vessel.

[0008] According to the above description, the present invention utilizes a catheter device placed inside the blood vessel to be treated, and moves the balloon to the position requiring expansion (e.g., where fat is present on the inner wall of the blood vessel, causing poor blood flow). After the balloon reaches the predetermined position, an external device (air pump) supplies air, and the balloon is infused with liquid through the inflation tube. At this time, the balloon gradually expands and expands the blood vessel. Simultaneously, as the balloon expands, at least one blood flow channel located within the balloon gradually unfolds until the balloon is fully inflated. Then, both ends of the at least one blood flow channel become open and connected to the blood vessel. In this way, during the application of the catheter device, there is no need to worry about blood obstruction, backflow, or blockage. Doctors do not need to worry about time constraints or operational errors, and patients do not need to worry about temporary tissue hypoxia or ischemia.

[0009] The beneficial effects of this invention are that it allows doctors more time to operate on the blood vessels being treated when using balloon catheter dilation during surgery, without worrying about blood blockage or backflow affecting the operation of other organs (such as myocardial tissue), especially the heart. It also improves safety for patients and eliminates the problem of complications. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0011] Figure 1 This is a three-dimensional schematic diagram of the first embodiment of the present invention.

[0012] Figure 2 for Figure 1 The schematic diagram of the cross section of line segment II-II is shown.

[0013] Figure 3 This is a schematic diagram of the present invention in use within a blood vessel before it is inflated.

[0014] Figure 4 This is a diagram showing the application of the present invention within blood vessels and its state after inflation.

[0015] Figure 5 This is a three-dimensional schematic diagram of the second embodiment of the present invention.

[0016] Figure 6 for Figure 5 The diagram shows a cross-sectional view of line segment VI-VI.

[0017] Figure 7 This is a three-dimensional schematic diagram of the third embodiment of the present invention.

[0018] Figure 8 for Figure 7 The diagram shows a cross-sectional view of line segment VIII-VIII.

[0019] Figure 9 This is a three-dimensional schematic diagram of the fourth embodiment of the present invention.

[0020] Figure 10 for Figure 9 The diagram shows a cross-sectional view of the X-X line segment.

[0021] Figure 11 This is a schematic diagram of the cross-section of an existing balloon catheter. Explanation of the labels in the diagram: Catheter device 100 200 blood vessels Catheter section 10 Conduction pipe 101 balloon section 20 Blood diversion channel 201 202 inflatable airbag Outer Ring Filling Area 2021 Internal filling area 2022 Outer ring filling area 2023 Central filling area 2024 Filling connecting ribs 2025 Inner Ring Filling Area 2026 External filling area 2027 Filling guide ribs 2028 Ring section 2029 Side guide channel 2030 Inflation tube 30 Gas inlet 301 Balloon catheter 300 400 pull wire structure Small hole 500 Detailed Implementation

[0022] To clearly illustrate the aforementioned objectives and effects achieved by the present invention, its features and effects are described in detail below with reference to the accompanying drawings. Please refer to... Figures 1 to 10 As shown, the present invention discloses a hollowed-out balloon vasodilator catheter device with blood diversion function, which is mainly placed at the location of the blocked blood vessel 200 to dilate the location and allow blood to flow smoothly. The catheter device 100 includes a catheter portion 10 and a balloon portion 20. The catheter portion 10 forms a guiding channel 101 inside, and the balloon portion 20 is located at one end of the catheter portion 10. The balloon portion 20 includes at least one blood diversion channel 201 and at least one inflatable balloon 202 located inside the balloon portion 20. An inflation tube 30 is provided, passing through the guiding channel 101 and extending into the at least one inflatable balloon 202. After insertion, the inflation tube 30 is tightly attached to the guiding channel 101 and the at least one inflatable balloon 202. The connection between the inflatable airbags 202 forms a sealed state inside the at least one inflatable airbag 202 to prevent air leakage during inflation. The at least one blood flow channel 201 extends from one end of the balloon portion 20 to the other end. The inflation tube 30 inflates the at least one inflatable airbag 202 to expand it. The expansion of the at least one inflatable airbag 202 expands the blocked blood vessel. After the at least one inflatable airbag 202 is inflated, the at least one blood flow channel 201 becomes open and connects to the blood vessel 200. This allows the catheter device 100 to expand the blood vessel 200 while the blood in the blood vessel 200 continues to flow through the at least one blood flow channel 201.

[0023] Based on the above description of the main technology of the present invention, when a doctor determines that a patient needs to dilate a blood vessel 200, the catheter device 100 is first inserted into the blood vessel 200 and gradually moved so that the balloon portion 20 is moved to the area requiring dilation. After this is completed, the inflation tube 30 is inserted from one end of the catheter portion 10 into the guiding tube 101 and then inserted into the balloon portion 20 before stopping. Then, an external inflation device is used to supply air. The gas enters through the inflation tube 30 and gradually inflates at least one inflatable balloon 202 in the balloon portion 20. At this time, the at least one inflatable balloon 202 gradually expands and dilates the area of ​​the blood vessel 200 that needs treatment. The expansion of the at least one inflatable balloon 202 also causes the at least one blood flow channel 201 to gradually unfold. The so-called unfolding means that the channel state gradually becomes apparent. Once the blood flow channel 201 is fully expanded, it will form a connection with the inside of the blood vessel 200, allowing the blood within the blood vessel 200 to flow smoothly during treatment. This structure is especially important for organs, particularly the heart, as it eliminates the need for temporary obstruction of blood flow. Maintaining stable blood flow ensures that all organs can maintain normal blood supply. Unlike existing balloon catheters, which, once inflated, directly block the entire blood vessel, preventing blood flow, this invention avoids serious damage to organs if the timing is not precise, leading to pain, organ ischemia and discomfort, infarction, arrhythmia, and blood clots. Therefore, this invention not only allows for timely vasodilation treatment of the blood vessel 200 but also maintains unobstructed blood flow within the blood vessel 200, ensuring the safety of the treatment. Please see [link to details]. Figure 3 , Figure 4 As shown.

[0024] Based on the above description, the present invention has various embodiments, and please refer to [the relevant documentation] before proceeding. Figure 3 , Figure 4 As shown, in order to allow the inflation tube 30 to supply and draw in air, thereby inflating and deflated the at least one inflatable bladder 202, the end of the inflation tube 30 located inside the at least one inflatable bladder 202 is further provided with at least one air inlet 301. Gas is guided by the inflation tube 30 and discharged through the at least one air inlet 301 to fill the at least one inflatable bladder 202. The at least one inflatable bladder 202 is inflated to expand the blood vessel 200, and gas inside the at least one inflatable bladder 202 is drawn in through the at least one air inlet 301. After the at least one inflatable bladder 202 is deflated, the catheter device 100 can be withdrawn from the blood vessel 200.

[0025] Furthermore, in the first embodiment of the present invention, the cross-section of the at least one blood flow channel 201 is circular, while the cross-section of the at least one inflatable bladder 202 of the balloon portion 20 is annular. The at least one inflatable bladder 202 is a hollow tube. The central blood flow channel 201 provides a path for blood flow, while the peripheral inflatable bladders 202 expand due to inflation, thus enlarging the blood vessels 200 and providing smooth blood flow. Please see... Figures 1 to 4 As shown; please see the second embodiment of the present invention. Figure 5 , Figure 6 As shown, the cross-section of the at least one blood flow channel 201 is fan-shaped, and the at least one inflatable airbag 202 further includes an outer ring filling area 2021 and an inner filling area 2022. The outer ring filling area 2021 and the inner filling area 2022 are connected, and the at least one blood flow channel 201 and the inner filling area 2022 are assembled to form a circle. The at least one blood flow channel 201 occupies three-quarters of the area, and the inner filling area 2022 occupies one-quarter of the area. Blood will flow through the fan-shaped blood flow channel 201 (the above proportions are not intended to limit its shape; a 50 / 50 ratio is also possible. It is only used to describe the shape of this embodiment).

[0026] Continuing from the above, the third embodiment of the present invention is described below. Figure 7 , Figure 8 As shown, at least one inflatable airbag 202 of the balloon portion 20 can be further divided into an outer ring filling area 2023, a central filling area 2024, and several filling connecting ribs 2025. The outer ring filling area 2023 is annular, and the central filling area 2024 is located at the center of the outer ring filling area 2023 and is hollow. One end of each filling connecting rib 2025 is connected to the outer periphery of the central filling area 2024 and radially connected to the inner wall of the outer ring filling area 2023. Each filling connecting rib 2025 is also hollow and connects to the outer ring filling area 2023 and... The central filling area 2024 is supplied with air by the air tube 30, which in turn supplies and draws air into the central filling area 2024. The air fills the central filling area 2024, each filling connecting rib 2025, and the outer ring filling area 2023. In addition, the filling connecting ribs 2025 separate the area between the outer ring filling area 2023 and the central filling area 2024 to form several blood flow channels 201 (8 blood flow channels 201 are shown in the attached figure). Each blood flow channel 201 is connected to the blood vessel 200, so that the blood can flow along multiple routes.

[0027] Finally, please refer to the fourth embodiment of the present invention. Figure 9 , Figure 10As shown, the design of at least one inflatable airbag 202 in the balloon portion 20 further includes an inner ring filling area 2026, an outer filling area 2027, and several filling guide ribs 2028. The inner ring filling area 2026 and the outer filling area 2027 are both tubular in shape with a hollow annular cross-section. The inner ring filling area 2026 is located within the outer filling area 2027, forming concentric circles. An annular interval 2029 is formed between the inner ring filling area 2026 and the outer filling area 2027. The several filling guide ribs 2028 are located within the annular interval 2029 and are each connected to the inner ring filling area 2026 at one end. Each filling guide rib 2028 extends radially towards the outer filling area 2027 and connects to the inner wall surface of the outer filling area 2027. The connecting rib 2028 is hollow, so each filling guide rib 2028 connects the inner ring filling area 2026 and the outer filling area 2027, so that when the air tube 30 supplies air, the gas can fill the inner ring filling area 2026, the outer filling area 2027 and each filling guide rib 2028, and each filling guide rib 2028 divides the ring interval 2029 to form several side guide channels 2030 (the attached figure shows 6 side guide channels 2030). The at least one blood guide channel 201 passes through the inner ring filling area 2026, and the at least one blood guide channel 201 and each side guide channel 2030 are connected to the blood vessel 200. The blood in the blood vessel 200 can be maintained through the at least one blood guide channel 201 and each side guide channel 2030.

[0028] In summary, this invention, in treating blood vessels 200, not only dilates the affected area but, more importantly, maintains blood flow within the blood vessels 200, continuously supplying blood to the body's organs and systems. This addresses the problems associated with existing methods that completely block blood flow after dilation, leading to various high-risk issues such as peripheral vascular perfusion problems, blood stasis, intravascular pressure imbalance, infarction, arrhythmia, and blood clot formation. This invention, utilizing various designs of the inflatable airbag 202, can dilate blood vessels 200 without obstructing blood flow. This allows doctors to conduct thorough examinations without time constraints, and for patients, it avoids the need for bypass surgery, thus preventing increased wound formation.

[0029] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A hollowed-out balloon catheter device for vasodilation with blood diversion function, primarily placed at the location of a blocked blood vessel, characterized in that, The catheter device includes a catheter section and a balloon section. The catheter section forms a guiding channel inside, and the balloon section is located at one end of the catheter section. An inflation tube is provided through the guiding channel and extends into the at least one inflatable balloon. At least one blood flow channel is provided through one end of the balloon section to the other end. The balloon is inflated by the inflation tube, which expands the balloon to dilate the blocked blood vessel. At the same time, after the balloon is inflated, the at least one blood flow channel is opened and connected to the blood vessel, so that the catheter device dilates the blood vessel while the blood in the blood vessel continues to flow through the at least one blood flow channel.

2. The hollowed-out balloon vasodilator catheter device with blood diversion function according to claim 1, characterized in that, The balloon portion is provided with at least one inflatable balloon, and the end of the inflation tube located inside the at least one inflatable balloon is further provided with at least one inlet. Gas is guided by the inflation tube and discharged through the at least one inlet to fill the at least one inflatable balloon. The at least one inflatable balloon is inflated to expand the blood vessel, and gas inside the at least one inflatable balloon is drawn in through the at least one inlet. After the at least one inflatable balloon is flattened, the catheter device can be withdrawn from the blood vessel.

3. The hollowed-out balloon vasodilator catheter device with blood diversion function according to claim 1, characterized in that, The cross-section of the at least one blood diversion channel is circular, while the cross-section of the balloon portion is annular.

4. The hollowed-out balloon vasodilator catheter device with blood diversion function according to claim 1, characterized in that, The cross-section of the at least one blood flow channel is fan-shaped, and the balloon portion further includes an outer ring filling area and an inner filling area. The outer ring filling area and the inner filling area are connected, and the at least one blood flow channel and the inner filling area form a circle. The at least one blood flow channel occupies three-quarters of the area, and the inner filling area occupies one-quarter of the area.

5. The hollowed-out balloon vasodilator catheter device with blood diversion function according to claim 1, characterized in that, The balloon further includes an outer filling area, a central filling area, and several filling connecting ribs. The central filling area is located at the center of the outer filling area, and one end of each filling connecting rib is connected to the outer periphery of the central filling area and radially connected to the inner wall of the outer filling area. Each filling connecting rib connects the outer filling area and the central filling area. The inflation tube extends into the central filling area to supply and inhale air. In addition, the arrangement of each filling connecting rib separates the area between the outer filling area and the central filling area to form several blood flow channels, and each blood flow channel is connected to a blood vessel.

6. The hollowed-out balloon vasodilator catheter device with blood diversion function according to claim 1, characterized in that, The balloon further includes an inner ring filling area, an outer filling area, and several filling guide ribs. The inner ring filling area is located within the outer filling area, and an annular interval is formed between the inner ring filling area and the outer filling area. The several filling guide ribs are located in the annular interval and are connected to the inner ring filling area at one end. Each filling guide rib extends radially toward the outer filling area and connects to the inner wall surface of the outer filling area. Each filling guide rib connects the inner ring filling area and the outer filling area. Each filling guide rib separates the annular interval to form several side guide channels. At least one blood flow channel penetrates the inner ring filling area, and the at least one blood flow channel and each side guide channel are connected to blood vessels.

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