Degradable heart patent ductus arteriosus plugging device and manufacturing method thereof
A patent ductus arteriosus occluder technology, which is applied in medical science, surgery, ligation, etc., can solve the problems of poor compliance and recovery of degradable occluders, reduce the risk of thrombus formation, increase support and Resilience and low manufacturing cost
Pending Publication Date: 2021-06-11
MALLOW MEDICAL SHANGHAICO LTD
View PDF8 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0009] The technical problem to be solved by the present invention is to solve the problem of long-term risk in the existing clinically used patent ductus arteriosus occluder, and to overcome the defects of poor compliance and recovery of the degradable occluder in the prior art , providing a degradable patent ductus arteriosus occluder and manufacturing method thereof
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0104] The present invention will be further described by means of embodiments below in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the embodiments.
[0105] Such as Figure 1-3 As shown, the degradable patent ductus cardiac artery occluder 100 is made of degradable silk, and the degradable patent ductus cardiac artery occluder 100 includes: a main body part, a flow blocking part (not shown) and a suture ( Not shown); Wherein, the main body part includes a circular truncated portion 10 and a disc-shaped portion 20 that is connected to one end of the circular truncated portion 10 and protrudes outward along the circumferential direction of the circular truncated portion 10; wherein, the blocking member is used to block blood flow There are at least two layers of degradable or non-degradable films; wherein, the sutures are degradable or non-degradable sutures used to sew the flow-blocking part on the main body part and ser...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a degradable heart patent ductus arteriosus plugging device and a manufacturing method thereof. The degradable heart patent ductus arteriosus plugging device comprises a main body part, a flow blocking part and a suture line; the degradable heart patent ductus arteriosus plugging device is made of a special mold. The special mold comprises a core mold; the core mold comprises a first cover body, a second cover body, a central component and an annular peripheral component; the first cover body covers a first opening, in the axial direction, of the peripheral component; the second cover body covers a second opening, in the axial direction, of the peripheral component; the center component is arranged in the peripheral component; a first annular gap is formed between the peripheral wall of the center component and the inner peripheral wall of the peripheral component; and the first annular gap is used for forming a circular truncated cone part; a step face extending in the peripheral direction is arranged on the portion, close to the second opening, of the inner peripheral wall of the peripheral component; a second annular gap is formed between the step face and the inner side face of the second cover body; and the second annular gap is used for forming a disc-shaped part.
Description
technical field [0001] The invention relates to a degradable cardiac arterial duct patent occluder and a manufacturing method thereof. Background technique [0002] Patent ductus arteriosus is one of the common congenital heart diseases. It refers to a congenital abnormal channel between the aorta and pulmonary artery, mostly located between the aortic isthmus and the root of the left pulmonary artery. Patent ductus arteriosus is mainly formed during the growth and development of the fetus. Due to certain factors affecting the development of the heart, a patent ductus arteriosus is formed. In patients with a patent ductus arteriosus, blood usually flows from the aorta through the patent ductus arteriosus into the pulmonary artery, and blood entering the pulmonary circulation returns to the left atrium and left ventricle. This results in hypertrophy and enlargement of the left atrium and left ventricle, eventually leading to left heart failure. If the inner diameter of the ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): A61B17/12
CPCA61B17/12031A61B17/12122A61B17/12172A61B2017/00004A61B2017/00526
Inventor 张健张瑾马彩霞张永凯程海波杨晨
Owner MALLOW MEDICAL SHANGHAICO LTD