Temporary coating device for vascular stent and method for temporary coating of vascular stent
A technology of vascular stents and membrane-covered devices, which is applied in the field of medical devices, can solve the problems of insufficient time, affecting the rescue effect, and the effect of temporary self-made stent-grafts is not accurate and reliable, so as to prevent rejection and avoid cost problems Effect
Inactive Publication Date: 2018-02-23
SHANGHAI PUDONG HOSPITAL
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Problems solved by technology
However, impromptu self-made stent-grafts are not reliable, and there is not enough time to make a stent-graft when a perforation occurs
Even if the preparation is done in a panic, there will be a certain amount of blood in the pericardium, which will definitely affect the rescue effect
Method used
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[0027] In the following description, many technical details are proposed in order to enable readers to better understand the application. However, those skilled in the art can understand that without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in each claim of the present application can be realized.
[0028] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the implementation of the present invention in detail in conjunction with the accompanying drawings.
[0029] The first embodiment of the present invention relates to a vascular stent temporary covering 1 device, figure 1 It is a structural schematic diagram of the temporary covering device of the vascular stent.
[0030] As shown in the figure, the temporary covering device for a vascular stent includes a covering film 1 and a hollow sleeve 2 for...
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The invention relates to a medical device, and discloses a temporary film covering device for a vascular stent and a method for temporarily covering the film. In the present invention, the coating and the vascular stent containing the hollow sleeve are included; the coating is a tubular elastic coating, which is sleeved on the outer surface of the vascular stent containing the hollow sleeve, and the inner diameter of the coating in a free state is smaller than that of the vascular stent when it is not released. Outer diameter; the vascular stent accommodates the hollow sleeve as a tube and the inner diameter matches the outer diameter of the unreleased vascular stent, providing a hollow lumen for the vascular stent to translate relative to the hollow sleeve to indirectly introduce the vascular stent into the membrane in the tubular space. The vascular stent temporary coating device of the present invention can utilize the separated vascular stent and the coating to quickly and conveniently prepare the stent-graft with low cost, and timely and effectively use the temporarily prepared stent-graft to seal the breach when the perforation occurs; and the whole During the preparation process, there is basically no hard contact between the covering film and the vascular stent, which can ensure the integrity of the covering film and the protection of the vascular stent.
Description
technical field [0001] The invention relates to a medical device, in particular to a temporary coating device and method for a blood vessel stent. Background technique [0002] During coronary intervention, coronary artery perforation often occurs due to excessive stent size, release pressure, post-dilation pressure, or pre-dilation pressure. Coronary artery perforation is a common complication in coronary intervention, and the situation is dangerous. If it is not treated in time, it will lead to acute cardiac tamponade and even death. [0003] When perforation occurs, the quickest and most convenient method is to use a balloon that matches the diameter of the blood vessel to expand and seal the breach with appropriate pressure. Sometimes this method can be effective when the breach is small. But in most cases, the bleeding cannot be stopped. If the blockage is too long, myocardial ischemia or even acute vascular occlusion will cause acute myocardial infarction. A simple s...
Claims
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IPC IPC(8): A61F2/07A61B17/00
Inventor 朱中生
Owner SHANGHAI PUDONG HOSPITAL