Head end punching balloon

Abstract

A head end punching balloon comprises an inner balloon made of a non-compliant material, the inner balloon is sleeved with an outer balloon made of a compliant material, the inner balloon is connected with an inner balloon pressure pump through an inner balloon connecting pipe, and the outer balloon is connected with an outer balloon pressure pump through an outer balloon connecting pipe. The in-situ windowing balloon has the following advantages that the balloon body is close to the balloon far end opening, and the in-situ windowing operation requirement can be better met. The invention has the advantages of simple structure and convenient operation, effectively avoids the deviation of the puncture direction caused by the problem of the adjustable bent sheath structure, reduces the risk of inducing massive hemorrhage, improves the operation safety, has wide market prospect, can solve the clinical practical problem, improves the operation effect and safety, has important application value in the field of vascular interventional operation, and has wide application prospect. The device is expected to become an important auxiliary instrument in a vascular interventional operation, provides better diagnosis and treatment service for patients, and can bring good economic benefits for medical institutions and medical instrument enterprises.

Description

Technical Field

[0001] The invention relates to the technical field of medical supplies, in particular to a balloon with a perforated tip. Background Art

[0002] Acute aortic dissection is an extremely dangerous condition, and there is a risk of death from aortic rupture at any time. During the treatment process, intraluminal aortic stent graft isolation is often required. For patients with branch vessels such as the left subclavian artery, left common carotid artery, and brachiocephalic trunk, blood flow in these branch vessels often needs to be reopened, and in situ fenestration is one of the commonly used surgical methods.

[0003] The balloon commonly used in vascular interventional surgery is usually single and spherical in shape. It does not require a sheath-core transition section, so the balloon body is very close to the distal end of the balloon. The purpose is often to expand the narrowed blood vessel segment after water injection. At present, there are many problems with the in situ window opening method. For example, when using lasers, direct puncture and other methods, an adjustable long sheath is often required to assist in guidance. The adjustable long sheath enters the blood vessel through the guide wire and requires the sheath core to assist in the transition. After reaching the target blood vessel, the sheath core is withdrawn. The end of the adjustable sheath will be a short distance away from the puncture point due to the previous inner core transition section, and its end is flat and cannot be easily advanced (easy to scratch the inner wall of the blood vessel). When the branch blood vessels are at a large angle, this short distance can easily cause the puncture direction to deviate, and once the puncture is deviated, it can easily induce heavy bleeding. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the background technology and provide a balloon with a perforated tip.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is: a head-end perforated balloon, comprising an inner balloon made of non-compliant material, the inner balloon is covered with an outer balloon made of compliant material, the inner balloon is connected to an inner balloon pressure pump via an inner balloon connecting tube, and the outer balloon is connected to an outer balloon pressure pump via an outer balloon connecting tube.

[0006] Preferably, the inner balloon is cylindrical in shape.

[0007] Preferably, the inner balloon material is PET balloon material.

[0008] Preferably, the outer balloon material is polyvinyl chloride balloon material.

[0009] The present invention has the following advantages: the unique double-balloon structure is reasonably designed, does not require a sheath-core transition section, and the balloon body is close to the distal end of the balloon, which can better adapt to the needs of in-situ window opening operations. It effectively avoids the deviation of the puncture direction caused by the problem of the adjustable curved sheath structure, reduces the risk of inducing massive bleeding, and improves the safety of the operation. It can accurately guide and adjust the direction of the guidewire channel, and significantly increase the probability of window opening. The product is relatively simple as a whole, easy to make, and not costly. And after the window opening probability increases, the utilization rate of the subsequent inserted connecting stents and ordinary balloons is higher, which improves the patient's rate of return. It has broad market prospects, can solve practical clinical problems, improve surgical effects and safety, has important application value in the field of vascular interventional surgery, and is expected to become an important auxiliary instrument in vascular interventional surgery, providing patients with better diagnosis and treatment services, and at the same time can also bring good economic benefits to medical institutions and medical device companies. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0011] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0012] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0013] In the description of the embodiments of the present invention, if a feature is referred to as being "set", "fixed", "connected", or "installed" on another feature, it may be directly set, fixed, or connected to the other feature, or it may be indirectly set, fixed, connected, or installed on the other feature. In the description of the embodiments of the present invention, if "several" is involved, it means more than one, if "multiple" is involved, it means more than two, if "greater than", "less than", or "exceeds" is involved, it should be understood as not including the number itself, and if "above", "below", or "within" is involved, it should be understood as including the number itself. If "first" or "second" is involved, it should be understood as being used to distinguish technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0014] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings.

[0015] The preferred embodiments of the present invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0016] Example

[0017] In conjunction with the accompanying drawings, a head-end perforated balloon includes an inner balloon 100 made of a non-compliant material, the inner balloon is covered with an outer balloon 200 made of a compliant material, the inner balloon is connected to an inner balloon pressure pump 102 via an inner balloon connecting tube 101, and the outer balloon is connected to an outer balloon pressure pump 202 via an outer balloon connecting tube 201.

[0018] As a preferred implementation scheme of this embodiment, the inner balloon is cylindrical in shape.

[0019] As a preferred implementation scheme of this embodiment, the inner balloon material is PET balloon material.

[0020] As a preferred implementation scheme of this embodiment, the outer balloon material is polyvinyl chloride balloon material.

[0021] When the present invention is implemented specifically, the purpose of the head-end perforated balloon of the present invention is different from that of expanding and dilating the narrowed blood vessel segment after water injection. Its purpose is: the external compliant material balloon (spherical shape) is expanded after water injection, shaped according to the shape of the lumen, and anchored to the tube wall, acting as a fulcrum and stabilizing role; then the internal non-compliant material balloon (cylindrical shape) is expanded by water injection to achieve guidance, adjust the direction of the middle guide wire channel, and avoid the middle guide wire channel from sticking to the wall (at least a radius of the non-compliant material balloon can be retained after water injection); and avoid the puncture needle or laser needle passing through the middle guide wire channel from deviating.

[0022] The technical features of the above-described embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. The above-described embodiments only express several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present invention, several variations and improvements can be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A balloon with a perforated tip, characterized in that: It comprises an inner balloon made of non-compliant material, the inner balloon is covered with an outer balloon made of compliant material, the inner balloon is connected to an inner balloon pressure pump via an inner balloon connecting tube, and the outer balloon is connected to an outer balloon pressure pump via an outer balloon connecting tube.

2. A tip-perforated balloon according to claim 1, characterized in that: The inner balloon is in a cylindrical shape.

3. A tip-perforated balloon according to claim 2, characterized in that: The inner balloon material is PET balloon material.

4. A tip-perforated balloon according to any one of claims 1 to 3, characterized in that: The outer balloon material is polyvinyl chloride balloon material.

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