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Protection system with stem-leaf-imitated structure

A protection system, stem-leaf technology, applied in the field of protection system with imitation stem-leaf structure, can solve problems such as blocked blood supply, organ embolism, etc., achieve the effect of reducing incision size, reducing trauma, and improving bending compliance

Pending Publication Date: 2021-08-10
NINGBO DIOCHANGE MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] According to an embodiment in the application of heart aortic valve surgery, the present invention can provide a protection system with a stem-leaf imitation structure for patients with structural heart disease who need interventional treatment, which can solve the problem of foreign bodies entering during interventional treatment Blood vessels block the blood supply, causing embolism of the brain, heart or other important organs, and the stem-leaf structure-like protection system can adapt to aortic arches of different sizes and anatomical shapes, including aortic arches with non-equal diameters and aortic arches with large spans, etc. In this way, one or a small number of stem-leaf structure-like protection systems can be realized to meet a variety of clinical needs. In addition, the stem-leaf structure-like protection system can also collect foreign matter in time and pull foreign matter out of the body

Method used

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  • Protection system with stem-leaf-imitated structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0100] A protective system with imitation stem and leaf structure, such as Figure 1a-1dAs shown, the protection system of the imitation stem and leaf structure includes a barrier device 1, the barrier device 1 includes a skeleton 11 and a filter device 2 connected to the frame 11, the frame 11 can limit the circumferential coverage area of ​​the filter device 2, so that the barrier device 1 It can play the role of filtering the ascending blood flow in the collateral vessels, preventing the foreign matter generated during the operation from entering the brain, so as to avoid the occurrence of cerebral apoplexy; and wherein, the skeleton 11 includes two stems 3, and a supporting skeleton 12 is arranged between the stems 3 , the support frame 12 connects all the stems 3, the stem 3 and the support frame 12 have shape memory and anatomical adaptability, play a supporting and positioning role, and can prevent the filter device 2 from collapsing or wrinkling, Affecting the passage ...

Embodiment 2

[0133] The difference between the protection system provided in this embodiment and the first embodiment is that:

[0134] In this example, if Figure 4aAs shown, the barrier device 1 includes a skeleton 11 and a filter device 2 connected to the skeleton 11. The skeleton 11 includes two stems 3 and several branch structures 31. A support skeleton 12 is arranged between the stems 3. The branch structures 31 are in the form of combs. Symmetrically distributed on both sides of the stem 3, the branch structure 31 is 3D curved, so that the distance between the free ends of each pair of branch structures 31 distributed on both sides of the two stems 3 can be reduced to different degrees for blood vessels of different diameters Or adaptive adjustment, thus this design has anatomical shape self-adaptability, branch structure 31 has shape memory and anatomical shape self-adaptability, and several described branch structure 31 is made up of several thin filaments and described stem 3 a...

Embodiment 3

[0162] The difference between the protection system with the stem-leaf structure provided in this embodiment and the second embodiment is that:

[0163] In this example, if Figures 5a-5eAs shown, the protection system of the imitation stem and leaf structure also includes a collection device 4 arranged in the proximal area of ​​the protection system, and the collection device 4 includes a stabilizing structure 41 and a collecting structure 42; wherein, the stabilizing structure 41 is a self-expanding elastic net Structure, which includes a generally cylindrical body; the collection structure 42 has shape memory and elasticity and is located at the proximal part of the collection device 4, the collection structure 42 can intercept foreign objects, and at the same time does not affect the passage of blood and water, when the structure 41 is stabilized When located at the position of the descending aorta, it can have a good radial support effect to form a stable support. On the ...

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Abstract

The invention relates to the field of medical instruments, in particular to a protection system with a stem-leaf-imitated structure, the protection system with the stem-leaf-imitated structure at least comprises a blocking device, and the blocking device comprises an elastic framework and a filtering device connected to the framework; wherein the framework comprises at least two rhizomes, a supporting skeleton is arranged between the stems, the supporting skeleton is connected with all the stems, the stems and the supporting skeleton have shape memorability and anatomic form self-adaptability, and the filtering device can intercept foreign matters without influencing blood cell components and water passing; or the framework further comprises a plurality of branch rod structures, the branch rod structures have shape memorability and anatomic form self-adaptability, and the branch rod structures are distributed on the stems in a comb shape; when the blocking device is placed in a predetermined position, all the stems and / or the plurality of branch structures can form a convex surface, and when the blocking device comprises the branch structures, each branch structure is generally perpendicular to the whole stem in the axial direction or faces the far end.

Description

technical field [0001] The invention belongs to the field of medical equipment, and in particular relates to a protection system with a stem-leaf imitation structure. Background technique [0002] At present, whether it is cardiac intervention or surgery, such as interventional occlusion of congenital heart disease, catheter ablation of atrial fibrillation, left atrial appendage occlusion, percutaneous aortic valve implantation, balloon dilatation, endarterectomy, Surgery such as vascular atherectomy may cause blood clots or calcified plaques to break and fall off, and produce thrombus, which will enter the distal blood vessels along the direction of blood flow, thereby increasing the risk of thromboembolism in the systemic circulation and blocking important organs blood supply to the brain, heart or other vital organs, such embolism may lead to cerebral infarction, myocardial infarction, pulmonary embolism, etc., and may lead to death in severe cases, and its complications ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/50A61B17/221
CPCA61B17/221A61B17/50A61B2017/22072A61B2017/2215
Inventor 李彪邵烨
Owner NINGBO DIOCHANGE MEDICAL TECH CO LTD
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