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An Adaptive Guidance System for Ultrasound-Guided Closure of Ventricular Septal Defect

A technology of ventricular septal defect and guidance system, applied in the medical field, can solve the problems of complicated operation, long operation time, and large trauma.

Active Publication Date: 2018-12-18
潘湘斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional technique not only has complicated operation, great trauma, long operation time and radiation exposure time, but also has a high incidence of complications such as tricuspid regurgitation

Method used

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  • An Adaptive Guidance System for Ultrasound-Guided Closure of Ventricular Septal Defect
  • An Adaptive Guidance System for Ultrasound-Guided Closure of Ventricular Septal Defect
  • An Adaptive Guidance System for Ultrasound-Guided Closure of Ventricular Septal Defect

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Such as Figure 1-4 As shown, the new guidance system for transfemoral venous ventricular septal defect closure under the guidance of pure ultrasound or combined guidance of radiation and ultrasound includes an outer catheter, an inner catheter FH, a loading sheath KM, and a 0.035-inch guide wire; The outer guide includes a sheath AD and an inner core IJ.

[0052] The sheath AD has a hollow structure and is suitable for insertion of the inner catheter FH and the inner core IJ. The sheath AD is sequentially divided into a first straight segment AB, a first arc segment BEC and a second straight segment CD along the direction in which it is inserted into the blood vessel; the first arc segment BEC is 135°; the first straight segment The length of AB is 4 cm, and the length of the second straight section CD is 115 cm; the angle between the extension line of the first straight section AB and the extension line of the second straight section CD is 45°. The end D of the seco...

Embodiment 2

[0057] Such as Figure 1-4 As shown, the new guidance system for transfemoral venous ventricular septal defect closure under the guidance of pure ultrasound or the guidance of radiation and ultrasound together includes an outer catheter, an inner catheter FH, a loading sheath KM, and a 0.038-inch guide wire; The outer guide includes a sheath AD and an inner core IJ.

[0058] The sheath AD has a hollow structure and is suitable for insertion of the inner catheter FH and the inner core IJ. The sheath AD is sequentially divided into a first straight segment AB, a first arc segment BEC and a second straight segment CD along the direction in which it is inserted into the blood vessel; the first arc segment BEC is in the shape of a 120° arc; the The length of the first straight section AB is 1 cm, and the length of the second straight section CD is 100 cm; the angle between the extension line of the first straight section AB and the extension line of the second straight section CD ...

Embodiment 3

[0063] Such as Figure 1-4 As shown, the new guidance system for transfemoral venous ventricular septal defect closure under the guidance of pure ultrasound or combined guidance of radiation and ultrasound includes an outer catheter, an inner catheter FH, a loading sheath KM, and a 0.035-inch guide wire; The outer guide includes a sheath AD and an inner core IJ.

[0064] The sheath AD has a hollow structure and is suitable for insertion of the inner catheter FH and the inner core IJ. The sheath AD is sequentially divided into a first straight segment AB, a first arc segment BEC and a second straight segment CD along the direction in which it is inserted into the blood vessel; the first arc segment BEC is in the shape of a 160° arc; the The length of the first straight section AB is 6 cm, and the length of the second straight section CD is 120 cm; the angle between the extension line of the first straight section AB and the extension line of the second straight section CD is 6...

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Abstract

An adaptive guidance system for ventricular septal defect occlusion under ultrasound guidance belongs to the field of the medical technology. The system comprises a guide wire, an outer catheter used for guiding an inner catheter (FH) and transporting an occlusion device, the inner catheter (FH) used for guiding the guide wire and a loading sheath (KM) used for storing the occlusion device. The guiding system and the occlusion can use ultrasound as a unique guiding means, under the ultrasound guidance, insert the guide wire and the catheters to a heart after puncturing via a femoral vein or incision, totally independent from radiation rays, and place the occlusion device at a lesion location through the catheters after passing through a ventricular septal defect from a right ventricle surface, overcoming a problem in prior art that radiation rays are used as guidance media and damages are caused by radiation and contrast agent.

Description

technical field [0001] The invention belongs to the field of medical technology, and in particular relates to a guiding system for ultrasonic-guided occlusion of ventricular septal defect and its adaptation. Background technique [0002] Ventricular septal defect refers to the incomplete development of the ventricular septum during the embryonic period, forming abnormal communication and generating left-to-right shunt at the ventricular level. Ventricular septal defect is the most common congenital heart disease, accounting for about 20% of congenital heart disease, can exist alone or coexist with other malformations. The defect is usually 0.1-3cm, and it is more common in the membranous part. If the defect is less than 0.3cm, the shunt flow is small, and there are usually no clinical symptoms. The size of the heart can be normal in those with small defects, and the left ventricle in those with large defects is significantly enlarged, which can cause pulmonary hypertension...

Claims

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Application Information

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IPC IPC(8): A61M25/088A61B8/12
CPCA61B8/0841A61B2017/00336A61B2017/00575A61B2017/00623A61B2090/378
Inventor 潘湘斌
Owner 潘湘斌