A blood flow diverting device for treating intracranial aneurysms

Abstract

This invention discloses a blood flow guiding device for treating intracranial aneurysms, relating to the field of medical device technology. It includes a blood flow catheter body, with a first connecting liner fixedly installed at one end and a second connecting liner fixedly installed at the other end. An externally threaded connecting ring is fixedly installed on the side of the first connecting liner away from the blood flow catheter body, and an internally threaded collar is fixedly installed on the side of the second connecting liner away from the blood flow catheter body. Connecting liners are embedded inside both ends of the blood flow catheter body, with their opposite ends fixedly connected to the first and second connecting liners, respectively. A main liner is also embedded inside the blood flow catheter body, located in the middle of the body. Anti-deformation bony rings and anti-deformation ribs are embedded inside the blood flow catheter body between the two connecting liners and the main liner. This invention ensures unobstructed blood flow within the catheter while maintaining flexibility and stability against deformation.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a blood flow diversion device for treating intracranial aneurysms. Background Technology

[0002] In the treatment of intracranial aneurysms, it is necessary to guide and drain the blood from the aneurysm, which requires medical catheters. Medical catheters, also known as medical tubing, are tubular rubber products used in medical settings. They can be divided into two types: external and internal. The former is used for the delivery of various gases and liquids, such as stethoscope tubing and infusion tubing. The latter, commonly referred to as medical rubber catheters, can be further classified by structure into single-lumen and multi-lumen catheters. Single-lumen catheters have only one lumen, while multi-lumen catheters, used in medical surgery, have two or more lumens (such as double-lumen hemostatic catheters and double-balloon triple-lumen catheters). Multi-lumen catheters are equipped with one or two latex balloons for sealing or compression. Rubber catheters are rubber tubes inserted into human cavities and blood vessels to inject drugs, withdraw fluids, and determine the degree of lumen opening. Medical tubing requires a smooth surface, to be non-toxic, odorless, and resistant to sterilization. In particular, internal tubing must be free of harmful soluble substances (such as lead, cadmium, and arsenic). Medical tubing is generally produced by extrusion molding, direct steam vulcanization, or compression molding.

[0003] Currently, most medical tubing used for blood flow guidance in the treatment of intracranial aneurysms is made of flexible material. During the process of guiding and transporting blood, it is easy for the negative pressure inside the tube to be compressed by the external air pressure, which can easily lead to poor flow within the tube. It is difficult to improve the rigidity of the tube while ensuring the flexibility of the tube, resulting in poor stability in application. Summary of the Invention

[0004] The purpose of this invention is to provide a blood flow guiding device for treating intracranial aneurysms, thereby solving the problems existing in the prior art and avoiding the situation where the blood is compressed by external air pressure due to negative pressure inside the tube during the blood diversion process, thus ensuring the smooth flow of blood inside the tube, while also ensuring the flexibility of the catheter and its stability against deformation.

[0005] To achieve the above objectives, the present invention provides the following solution:

[0006] This invention provides a blood flow guiding device for treating intracranial aneurysms, comprising a blood flow conduit body. A first connecting liner is fixedly installed at one end of the blood flow conduit body, and a second connecting liner is fixedly installed at the other end. An externally threaded connecting ring is fixedly installed on the side of the first connecting liner away from the blood flow conduit body, and an internally threaded collar is fixedly installed on the side of the second connecting liner away from the blood flow conduit body. Connecting liners are respectively embedded inside both ends of the blood flow conduit body, and the opposite ends of the two connecting liners are fixedly connected to the first connecting liner and the second connecting liner, respectively. A main liner is also embedded inside the blood flow conduit body, and the main liner is located in the middle of the blood flow conduit body. Anti-deformation bone rings and anti-deformation bone ribs are respectively embedded inside the blood flow conduit body between the two connecting liners and the main liner.

[0007] Preferably, the blood flow catheter body is made of medical-grade silicone rubber and is a round tube.

[0008] Preferably, the first connecting liner, the externally threaded connecting ring, the second connecting liner, the internally threaded collar, and the connecting liner are all made of medical-grade PVC material.

[0009] Preferably, both the anti-deformation bone ring and the anti-deformation rib are made of stainless steel.

[0010] Preferably, the pipe diameter of the external threaded connecting bushing is smaller than the pipe diameter of the internal threaded collar, and the pipe wall thickness of the external threaded connecting bushing and the internal threaded collar are equal.

[0011] Preferably, the wall thicknesses of the connecting liner, the main liner, the anti-deformation rib ring, and the anti-deformation rib are equal.

[0012] Preferably, the anti-deformation rib ring is disposed on the side of the main liner tube near the external threaded connecting liner ring, and the anti-deformation rib is disposed on the side of the main liner tube near the internal threaded collar.

[0013] Preferably, multiple anti-deformation rib rings are provided, and each anti-deformation rib ring is distributed at equal intervals along the axial direction; multiple anti-deformation ribs are provided, and each anti-deformation rib is distributed at equal intervals along the axial direction.

[0014] The present invention achieves the following technical effects compared to the prior art:

[0015] This invention provides a blood flow guiding device for treating intracranial aneurysms. By embedding a main liner in the middle of the blood flow catheter body and connecting liner inside both ends of the blood flow catheter body, the middle and proximal sections of the blood flow catheter body are provided with rigid structural support, making them less prone to deformation. Furthermore, by embedding anti-deformation bony rings and anti-deformation ribs inside the blood flow catheter body between the two connecting liner and the main liner, the sections between the main liner and the connecting liner are provided with intermittent rigid structural support. This allows the sections of the anti-deformation bony rings and anti-deformation ribs to bend without easily deforming under pressure, thus preventing the catheter from being compressed by external air pressure during blood flow. This ensures smooth blood flow within the catheter while maintaining the catheter's flexibility and stability, making it easy to bend and less prone to deformation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a cross-sectional view of the blood flow diversion device for treating intracranial aneurysms provided by the present invention.

[0018] Figure 2 This is a front view of the structure of the blood flow diversion device for treating intracranial aneurysms provided by the present invention.

[0019] In the figure: 1-Blood flow catheter body, 2-First connecting liner, 3-External threaded connecting liner, 4-Second connecting liner, 5-Internal threaded collar, 6-Main liner, 7-Connecting liner, 8-Anti-deformation bone ring, 9-Anti-deformation bone rib. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] The purpose of this invention is to provide a blood flow guiding device for treating intracranial aneurysms, thereby solving the problems existing in the prior art and avoiding the situation where the blood is compressed by external air pressure due to negative pressure inside the tube during the blood diversion process, thus achieving the effect of ensuring smooth blood delivery inside the tube, while also ensuring the flexibility of the catheter and its stability against deformation.

[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] like Figures 1-2 As shown, this embodiment provides a blood flow guiding device for treating intracranial aneurysms, including a blood flow catheter body 1. The blood flow catheter body 1 is made of medical-grade silicone rubber and is a round tube. A first connecting liner 2 is fixedly installed at one end of the blood flow catheter body 1, and a second connecting liner 4 is fixedly installed at the other end. An externally threaded connecting liner 3 is fixedly installed on the side of the first connecting liner 2 away from the blood flow catheter body 1, and an internally threaded collar 5 is fixedly installed on the side of the second connecting liner 4 away from the blood flow catheter body 1. Connecting... The two connecting liner tubes 7 are fixedly connected to the opposite ends of the first connecting liner tube 2 and the second connecting liner tube 4, respectively. The blood flow catheter body 1 is also embedded with a main liner tube 6, which is located in the middle of the blood flow catheter body 1. The blood flow catheter body 1 between the two connecting liner tubes 7 and the main liner tube 6 is embedded with an anti-deformation bone ring 8 and an anti-deformation bone rib 9, respectively. The first connecting liner tube 2, the external thread connecting liner tube 3, the second connecting liner tube 4, the internal thread collar 5, and the connecting liner tube 7 are all made of medical PVC material, while the anti-deformation bone ring 8 and the anti-deformation bone rib 9 are both made of stainless steel material.

[0024] By incorporating a main liner 6 and a connecting liner 7 made of medical PVC, the middle and proximal sections of the blood flow catheter body 1 made of silicone rubber are provided with rigid structural support, making it less prone to deformation. By incorporating anti-deformation bone rings 8 and anti-deformation ribs 9 made of stainless steel, the sections between the main liner 6 and the connecting liner 7 are provided with intermittent rigid structural support. This allows the sections of the anti-deformation bone rings 8 and anti-deformation ribs 9 to bend without being easily deformed by pressure. This avoids the situation where the catheter is compressed by external air pressure due to negative pressure inside the tube during blood flow, thus ensuring smooth blood flow inside the tube. At the same time, it ensures the flexibility and stability of the catheter when bending, making it easy to bend and less prone to deformation in application.

[0025] In this embodiment, the pipe diameter of the external threaded connecting bushing 3 is smaller than that of the internal threaded collar 5, and the pipe wall thicknesses of the external threaded connecting bushing 3 and the internal threaded collar 5 are equal. Setting the pipe wall thicknesses of the external threaded connecting bushing 3 and the internal threaded collar 5 to be equal ensures uniform stress at the positions of the external threaded connecting bushing 3 and the internal threaded collar 5 during use.

[0026] In this embodiment, the wall thickness of the connecting liner 7, main liner 6, anti-deformation bone ring 8 and anti-deformation bone rib 9 is equal, ensuring that the wall thickness of the distal, middle and proximal ends of the blood flow catheter body 1 is consistent, and preventing the blood flow catheter body 1 from breaking during use.

[0027] In this embodiment, the anti-deformation bone ring 8 is disposed on the side of the main liner 6 near the external threaded connecting liner 3, and the anti-deformation rib 9 is disposed on the side of the main liner 6 near the internal threaded collar 5. The material used for the blood flow catheter body 1 generally changes from soft to hard from the distal end to the middle end, making it easy to bend and pass through tortuous blood vessels, but it is also more prone to deformation during use, thus affecting its use; the proximal end of the blood flow catheter body 1 is generally made of a harder material with stronger support; the end with the external threaded connecting liner 3 is the distal part of the blood flow catheter body 1, and the end with the internal threaded collar 5 is the proximal part of the blood flow catheter body 1. Both the anti-deformation bone ring 8 and the anti-deformation rib 9 are made of stainless steel with equal inner and outer diameters. The length of the anti-deformation bone ring 8 is longer than that of the anti-deformation rib 9. The anti-deformation bone ring 8 can provide better anti-deformation strength. Therefore, the anti-deformation bone ring 8 is used in the middle and distal ends to compensate for the lack of easy deformation, and the anti-deformation rib 9 is used in the middle and proximal ends to further achieve the purpose of anti-deformation.

[0028] In this embodiment, multiple anti-deformation rings 8 are provided, and each anti-deformation ring 8 is distributed at equal intervals along the axial direction; multiple anti-deformation ribs 9 are provided, and each anti-deformation rib 9 is distributed at equal intervals along the axial direction. Different numbers of anti-deformation rings 8 and anti-deformation ribs 9 can be provided according to actual needs.

[0029] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A blood flow diversion device for treating intracranial aneurysms, comprising a blood flow conduit body, characterized in that: A first connecting liner is fixedly installed at one end of the blood flow conduit body, and a second connecting liner is fixedly installed at the other end. An externally threaded connecting ring is fixedly installed on the side of the first connecting liner away from the blood flow conduit body, and an internally threaded collar is fixedly installed on the side of the second connecting liner away from the blood flow conduit body. Connecting liners are respectively embedded inside both ends of the blood flow conduit body. The opposite ends of the two connecting liners are respectively fixedly connected to the first connecting liner and the second connecting liner. A main liner is also embedded inside the blood flow conduit body. The main liner is located in the middle of the blood flow conduit body. Anti-deformation bone rings and anti-deformation bone ribs are respectively embedded inside the blood flow conduit body between the two connecting liners and the main liner. The anti-deformation rib is disposed on the side of the main liner tube near the external threaded connecting liner, and the anti-deformation rib is disposed on the side of the main liner tube near the internal threaded collar. The length of the anti-deformation rib is longer than that of the anti-deformation rib. The anti-deformation rib is located near the far end of the main liner tube, and the anti-deformation rib is located near the proximal end of the main liner tube. Multiple anti-deformation rib rings are provided, and each anti-deformation rib ring is distributed at equal intervals along the axial direction; multiple anti-deformation ribs are provided, and each anti-deformation rib is distributed at equal intervals along the axial direction.

2. The blood flow diversion device for treating intracranial aneurysms according to claim 1, characterized in that: The blood flow catheter body is made of medical silicone rubber and is a round tube.

3. The blood flow diversion device for treating intracranial aneurysms according to claim 1, characterized in that: The first connecting liner, the externally threaded connecting ring, the second connecting liner, the internally threaded collar, and the connecting liner are all made of medical-grade PVC material.

4. The blood flow diversion device for treating intracranial aneurysms according to claim 1, characterized in that: Both the anti-deformation bone ring and the anti-deformation rib are made of stainless steel.

5. The blood flow diversion device for treating intracranial aneurysms according to claim 1, characterized in that: The pipe diameter of the externally threaded connecting bushing is smaller than that of the internally threaded collar, and the pipe wall thicknesses of the externally threaded connecting bushing and the internally threaded collar are equal.

6. The blood flow diversion device for treating intracranial aneurysms according to claim 1, characterized in that: The wall thicknesses of the connecting liner, the main liner, the anti-deformation rib ring, and the anti-deformation rib are equal.

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