阅读说明：本技术 一种人工心脏出口管道旋动吻合接头 (Artificial heart outlet pipeline rotating anastomosis joint ) 是由 高斌 张琪 马鑫蕊 常宇 于 2019-10-14 设计创作，主要内容包括：一种人工心脏出口管道旋动吻合接头,属于生物医学工程领域。包括支撑部、连接接头；支撑部、连接接头为一个整体；支撑部为长管状结构侧壁敞口弧的一部分,支撑部对应长管状结构侧壁的中心弧度为60°-120°,支撑部用于贴合在连接血管的外侧面；连接接头整体为管状结构,用于连接人工心脏输出管,连接接头管状端口通过斜旋的方式与支撑部的管状结构侧壁连接连通在一起,支撑部管状结构的中心轴与连接接头的中心轴不共面且之间有一距离,且上述两中心轴之间具有夹角θ小于90°,上述两中心轴之间的距离小于等于连接接头管状结构半径的30％。通过调整两中心轴的距离以及两中心轴的夹角的角度,改变人工心脏血流流向,形成旋动血流。(A rotating anastomotic joint of an outlet pipeline of an artificial heart belongs to the field of biomedical engineering. Comprises a supporting part and a connecting joint; the supporting part and the connecting joint are integrated; the supporting part is a part of an open arc of the side wall of the long tubular structure, the central radian of the supporting part corresponding to the side wall of the long tubular structure is 60-120 degrees, and the supporting part is used for being attached to the outer side surface of the connecting blood vessel; the whole connecting joint is of a tubular structure and is used for connecting an artificial heart output tube, the tubular port of the connecting joint is connected and communicated with the side wall of the tubular structure of the supporting part in a diagonal rotation mode, the central axis of the tubular structure of the supporting part is not coplanar with the central axis of the connecting joint, a distance is reserved between the central axis of the tubular structure of the supporting part and the central axis of the connecting joint, an included angle theta is smaller than 90 degrees, and the distance between the central axes is smaller than or equal to 30% of the radius of the tubular structure. The flow direction of the artificial heart blood flow is changed by adjusting the distance between the two central shafts and the angle of the included angle between the two central shafts, so as to form the swirling blood flow.)

1. A rotary anastomosis joint for an outlet pipeline of an artificial heart is characterized by comprising a supporting part (1) and a connecting joint (2); the supporting part (1) and the connecting joint (2) are integrated; the supporting part (1) is a part of an open arc of the side wall of the long tubular structure, the central radian of the supporting part (1) corresponding to the side wall of the long tubular structure is more than or equal to 60 degrees and less than or equal to 120 degrees, and the supporting part (1) is used for being attached to the outer side surface of the connecting blood vessel; the whole connecting joint (2) is of a tubular structure and is used for connecting an artificial heart output tube, the tubular port of the connecting joint (2) is connected and communicated with the side wall of the tubular structure of the supporting part (1) in an oblique rotating mode, the central axis of the tubular structure of the supporting part (1) is not coplanar with the central axis of the connecting joint (2), a distance is reserved between the central axis of the tubular structure of the supporting part (1) and the central axis of the connecting joint (2), and an included angle theta is formed between the two central axes and is smaller.

2. The artificial heart outlet conduit swirl anastomosis joint according to claim 1, wherein the central axes subtend an angle θ of from 15 ° to 75 °.

3. An artificial heart outlet conduit circumgyrating anastomosis joint according to claim 1, characterised in that the distance between the two central axes is less than or equal to 30% of the radius of the tubular structure of the connection joint (2).

4. An artificial heart outlet conduit circumgyrating anastomosis joint according to claim 1, characterised in that the distance between the two central axes is equal to or less than 15-30% of the radius of the tubular structure of the connection joint (2).

5. An artificial heart outlet conduit rotating anastomosis joint, according to claim 1, characterized in that, finally, at the junction between the supporting portion (1) and the connection joint (2), the side wall of the long tubular structure of the supporting portion (1) and the side wall of the long tubular structure of the connection joint (2) are embedded into the side wall of the tubular structure of the connection joint (2) in the above-mentioned manner, and the common region of the connection is absent, so that the inner part of the center of the tubular structure of the connection joint (2) is communicated with the inner part of the center of the corresponding long tubular structure of the supporting portion (1).

Technical Field

The invention relates to a rotary anastomosis joint for an outlet pipeline of an artificial heart, belonging to the field of biomedical engineering.

Background

The artificial heart has become one of the effective methods for treating heart failure, and the aortic valve diseases and the high incidence of the aortic diseases during the use greatly limit the clinical application of the artificial heart. Earlier studies have shown that the addition of a swirling flow component to the outflow of blood from an artificial heart can effectively reduce the risk of valve and aortic complications. Therefore, patent 2008102229630 discloses an artificial blood vessel with a bias flow guide, which can generate a swirling blood flow to reduce the impact on the blood vessel. Similarly, the patent 2014106871839 discloses a conical helical small-bore artificial blood vessel capable of generating swirling flow, which can generate a certain degree of swirling blood flow and reduce the risk of vascular complications. Although the above invention reduces the valve and aortic complications to some extent, the following problems still remain. First, the swirling flow degree generated in the above invention is greatly influenced by the blood flow velocity, and it cannot be considered to adjust the strength of the swirling blood flow, and it cannot generate the swirling blood flow most matched with the aortic blood flow according to the physiological structure of the patient's aorta. Secondly, the actual clinical effect of the device of the invention is directly influenced by the anastomosis angle and position of the doctor, and the doctor cannot accurately control the actual anastomosis angle. The above problems limit the clinical application and reliability of artificial hearts.

Disclosure of Invention

In order to solve the problems, the invention provides a rotary anastomosis joint for an outlet pipeline of an artificial heart.

The technical solution adopted by the present invention to solve the technical problem is specifically referred to fig. 1 and fig. 2.

A rotary anastomosis joint of an outlet pipeline of an artificial heart comprises a supporting part (1) and a connecting joint (2); the supporting part (1) and the connecting joint (2) are integrated; the supporting part (1) is a part of an open arc of the side wall of the long tubular structure, the central radian of the supporting part (1) corresponding to the side wall of the long tubular structure is more than or equal to 60 degrees and less than or equal to 120 degrees, and the supporting part (1) is used for being attached to the outer side surface of the connecting blood vessel; the whole connecting joint (2) is of a tubular structure and is used for connecting an artificial heart output tube, a tubular port of the connecting joint (2) is connected and communicated with the side wall of the tubular structure of the supporting part (1) in an oblique rotation mode, a central shaft of the tubular structure of the supporting part (1) is not coplanar with a central shaft of the connecting joint (2) and has a distance, an included angle theta is formed between the two central shafts, and the included angle theta is smaller than 90 degrees and preferably ranges from 15 degrees to 75 degrees; the distance between the two central axes is less than or equal to 30 percent of the radius of the tubular structure of the connecting joint (2), and is preferably 15 to 30 percent.

Finally, the connecting part of the supporting part (1) and the connecting joint (2) is formed by embedding the side wall of the long tubular structure of the supporting part (1) and the connecting joint (2) into the side wall of the tubular structure of the connecting joint (2) according to the mode, the connecting common area is lost, and the central inner part of the tubular structure of the connecting joint (2) is communicated with the central inner part of the corresponding long tubular structure of the supporting part (1).

The flow direction of the artificial heart blood flow is changed by adjusting the distance between the two central shafts and the angle of the included angle between the two central shafts, so as to form the swirling blood flow. The supporting part (1) and the connecting joint (2) are both made of hard high polymer materials, the supporting part is made of high polymer materials with good biocompatibility, and the connecting joint is made of high polymer materials and is provided with a groove for fixing an outlet pipeline of the artificial heart.

Drawings

Fig. 1 is a perspective view of the artificial heart outlet conduit rotary anastomosis joint.

Fig. 2 is a top view of fig. 1.

1. A support portion; 2. and connecting the joints.

FIG. 3 is a simplified diagram of the structure of the artificial heart outlet conduit rotary anastomosis joint of the present invention.

A is a schematic view of the joint of the support part and the connecting joint; b is a three-dimensional schematic view of the artificial heart outlet pipeline rotating anastomosis joint, and C is a front view.

Detailed Description

The present invention will be further illustrated with reference to the following examples, but the present invention is not limited to the following examples.