A drug-loaded device protection device that is easily withdrawn in vivo
A protection device and equipment technology, applied in the field of medical equipment, to achieve the effects of simple structure, strong practical value and convenient operation
Active Publication Date: 2019-01-04
赛诺神畅医疗科技有限公司
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Problems solved by technology
[0007] In view of the above-mentioned problems existing in the prior art, the purpose of the present invention is to provide a drug-loaded device protection device that is easy to evacuate in vivo, so as to solve the protection problem of drug-loaded devices such as drug stents and drug balloons during the in vivo delivery process
Method used
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Embodiment
[0027] Such as figure 1 As shown: a protective device for a drug-carrying device that is easily withdrawn in the body provided by this embodiment, including a handle 1, a proximal part 2 and a distal part 3, the handle 1 is connected to the head end of the proximal part 2 The tail end of the proximal part 2 is connected with the distal part 3, the opening of the distal part 3 is set at the end, and the pulling structure 4 is provided at the end 31.
[0028] The fixed end 41 of the pulling structure 4 is fixedly connected to the end 31 , and the free end 42 of the pulling structure 4 extends along the axial direction of the distal part 3 toward the proximal part 2 .
[0029] The pulling structure 4 is at least one pulling strap (two pulling straps are shown in the figure), and the two pulling straps are symmetrically arranged on both sides of the distal part 3 .
[0030] The distal part 3 is preferably an elastic or non-elastic capsule made of one or more layers of polymer mat...
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The invention discloses a medicine-carrying instrument protection device capable of being removed easily in the body. The medicine-carrying instrument protection device comprises a near-end part, the tail end of the near-end part is connected with a far-end part, an opening of the far-end part is arranged in the tail end, and the tail end is provided with a pulling structure. Because the opening of the far-end part of the medicine-carrying instrument protection device is arranged in the tail end, and the tail end is provided with the pulling structure, the far-end part can be pulled and rolled up through the pulling structure and is separated from the medicine-carrying instrument, and therefore the medicine-carrying instrument protection device can be separated from the carried medicine-carrying instrument in the body quickly and is removed. The medicine-carrying instrument protection device is simple in structure and convenient to operate, the medicine-carrying instrument protection device can be used for protecting the medicine-carrying instrument when the medicine-carrying instrument is transported in the body, problems that when the medicine-carrying instrument is transported in the body, medicine can fall off easily, the instrument is unloaded and can scratch and damage the vessel wall and the like are solved, and the medicine-carrying instrument protection device has a high practical value.
Description
technical field [0001] The invention relates to a drug-loaded device protection device which is easy to withdraw in the body, and belongs to the technical field of medical devices. Background technique [0002] In recent years, percutaneous coronary intervention (PCI) has achieved rapid development, but during the interventional operation, drug-loaded devices such as drug balloons and drug stents need to be delivered to the exact lesion location. [0003] Because the drug balloon is to coat the drug on the surface of the balloon, when the balloon reaches the lesion site, the blood vessel wall is stretched and expanded, and when it contacts the intima of the blood vessel wall, the drug is quickly released and transferred to the local blood vessel wall. However, the drug coating loss during the intravascular crossing of the drug balloon is still the main problem faced by the current drug balloon technology. According to the published data, the drug crossing loss rate in the p...
Claims
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IPC IPC(8): A61F2/958A61L31/06A61L31/04
CPCA61F2/958A61F2002/9583A61L31/048A61L31/049A61L31/06C08L9/00C08L75/04C08L77/00C08L67/02C08L71/02C08L27/18C08L23/12C08L23/06
Inventor 张瑞岩
Owner 赛诺神畅医疗科技有限公司