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Adjustable externally implanted aortic valve forming ring

A technology of aortic valve and forming ring, which is applied in the field of medical devices, can solve the problems of no clinical use in hospitals and the inability to adjust the size, etc., and achieve the effects of improving the effect of valve repair, ensuring life safety, and convenient assembly and preparation

Pending Publication Date: 2019-04-19
ZHONGSHAN HOSPITAL FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the shape and size of these aortic annuloplasty rings are relatively fixed, and the size cannot be adjusted according to the required degree of ring constriction or the echocardiogram after cardiac resuscitation, which has considerable limitations in use, so the current There is no hospital for clinical use

Method used

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  • Adjustable externally implanted aortic valve forming ring
  • Adjustable externally implanted aortic valve forming ring
  • Adjustable externally implanted aortic valve forming ring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] Embodiment 1: During the operation, the patient is first subjected to routine steps such as anesthesia induction, disinfection, and thoracotomy. Under the establishment of extracorporeal circulation, after the heart stopped beating, the ascending aorta was transected, and the root of the aorta was carefully dissected to the level of the valve ring. For cases that do not require coronary artery grafting, it is necessary to dissociate to the left and right coronary artery openings, and use a ring detector to measure Valve ring size, combined with the results of preoperative esophageal ultrasound measurement, select the appropriate specification (outside diameter 23mm and 28mm one of the specifications) of the forming ring 1 main body 2, for example Figure 4B and Figure 5B The main body 2 of the forming ring 1 is shown. Below the aortic valve, 3-6 stitches of fixed ring sutures were placed intermittently from the inside of the aorta to the outside of the aorta, avoiding...

Embodiment 2

[0078] Embodiment 2: The aortic annuloplasty ring 1 provided by the present invention is also suitable for some aortic valve insufficiency caused by dilation of the aortic sinus-tubular junction. The preparation before the operation is the same as the related steps in Example 1. With the aid of extracorporeal circulation established during the operation, the aortic-sinus-tube junction is separated, combined with intraoperative esophageal ultrasound and preoperative CT examination, and a suitable specification (one of the external diameters of 23mm and 28mm) of the forming ring 1 and the main body 2 is selected, for example Figure 4B and Figure 5B The main body 2 of the forming ring 1 is shown. The main body 2 of the forming ring 1 is passed through the ascending aorta, and the free end 72 of the adjustment wire 7 is knotted after passing through the fixing hole 51 of the second joint 5 . Close the connection part, that is, the first joint 4 and the second joint 5 are docke...

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Abstract

The invention discloses an aortic valve forming ring. The aortic valve forming ring includes a hollow elastic support, a first joint, a second joint, a suture circle and an adjusting thread; the firstjoint and the second joint are connected to the two ends of the elastic support respectively and can be connected to form a connecting part; the suture circle serves as a sleeve pipe for coating theelastic support to form a closed ring; one end of the adjusting thread serves as a front end to be fixed to the first joint, the free end extruding out of the elastic support serves as a rear end, andthe adjusting thread is provided with length scales. By controlling the length of the adjusting thread, the size of the aortic valve forming ring can be finely adjusted. The aortic valve forming ringserving as an implantable prosthesis can be applied to aortic valvuloplasty and used for conducting annular constriction on expanded aorta roots and valve rings, aortic valve ring long-term progressive expansion is prevented, and the valve repair effect is improved.

Description

technical field [0001] The invention belongs to the field of medical devices and relates to an aortic valve forming ring, in particular to an adjustable externally implanted aortic valve forming ring. Background technique [0002] The heart has four valves, the mitral valve between the left atrium and the left ventricle, the tricuspid valve between the right atrium and the right ventricle, the pulmonary valve between the right ventricle and the pulmonary artery, and the aortic valve between the left ventricle and the aortic valve. aortic valve, such as figure 1 shown. The aortic valve is a semilunar valve that is morphologically similar to the pulmonary valve, see figure 1 . There is a valve between the ascending aorta and the left ventricle, which is the aortic valve. Because it is in the center, the aortic valve is closely related to each heart chamber and valve, and is used to prevent blood from flowing backward. When severe aortic valve disease or dysfunction occurs,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/24
CPCA61F2/2409A61F2/2445A61F2250/0097A61F2220/0008A61F2210/0066
Inventor 王春生陆树洋程蕾蕾孙勇新
Owner ZHONGSHAN HOSPITAL FUDAN UNIV
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