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Plugging device

A technology of occluder and occlusion disc, which is applied in the fields of medical science, surgery, ligation, etc., can solve problems such as the inability to achieve membrane covering, and achieve the effects of improving anatomical adaptability, enhancing occlusion effect, and reducing body shape

Pending Publication Date: 2017-08-18
NINGBO DIOCHANGE MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] The purpose of the present invention is to solve the series of problems caused by the inability to achieve film covering by using the traditional up and down alternately interspers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The occluder of the first embodiment of the present invention can be used for the closure of defect openings, such as atrial septal defect, ventricular septal defect, and tissue breaches such as blood vessels.

[0062] like Figures 5a-5b ,as well as Figures 6a-6c As shown, the occluder includes two occlusion disks 10, any of which includes a central end 100, a first occlusion surface 101, a second occlusion surface 101' and a connecting portion 103, the two occlusion disks 10 The plugging disc 10 is connected by a connecting central piece 105 coaxial with the central axis of the central end 100 . The first occlusion surface 101 and the second occlusion surface 101' of the occlusion disk 10 are respectively composed of a plurality of main rods 1010 and main rods 1010 that directly diverge from the central end 100 and the connecting center piece 105 to the edge of the occlusion disk. 'constitute. The second blocking surface 101' is connected to the first blocking sur...

Embodiment 2

[0072] like Figure 7 As shown, based on the first embodiment, the difference between the second embodiment and the first embodiment is that in the first blocking surface 101 of any blocking disk 10, the main rod 1010 consists of many The root rods 1011 are substantially parallel to each other, and the main rod 1010 is inserted on the membrane 102 . This design further fixes the relative position of the membrane 102 and the main rod 1010. After the first occluding surface 101 is compressed and enters the delivery sheath, the membranes are arranged in an orderly manner in the sheath to achieve tight filling, instead of the membrane of the traditional occluder. The chaos and disorder of the occlusion disc 10 lead to a large gap, because this design reduces the size of the first occlusion surface 101 of the occlusion disc 10 after compression, so the minimum diameter of the delivery sheath tube used is reduced, and the impact on the surgical approach is reduced. requirements, ex...

Embodiment 3

[0074] The occluder of the third embodiment of the present invention can be used for occlusion of lumens and organ passages, such as patent ductus arteriosus and left atrial appendage.

[0075] like Figures 8a-8c As shown, based on the first embodiment, the third embodiment differs from the first embodiment in that the occluder includes an occlusion disk 10 and an anchor frame 11 . The anchoring frame 11 is placed inside the lumen or organ channel, and plays the role of fixing the occluder. The main rod 1010 of the first sealing surface 101 is provided with a thread hole 1014, or the gap between the sub-rods 1011 with intertwined braided structure is used to form a thread hole, and the series thread 1013 passes through the thread hole 1014 to make a plurality of main rods 1010 connected in series. One, such as Figure 8a , and the first sealing surface 101 is wrapped inside the membrane 102, as Figure 8bAs shown, this design makes the film 102 on both sides of the first p...

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PUM

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Abstract

The invention relates to a plugging device which comprises at least one plugging plate. Each plugging plate comprises a central end, a first plugging surface, a second plugging surface and a connecting portion, wherein the first plugging surface comprises a plurality of main rods directly diverged from the central end to the edge of the plugging surface, the second plugging surface is connected with the first plugging surface through the connecting portion, and the connecting portion comprises a plurality of auxiliary rods separated from each main rod. The auxiliary rods are cross-woven to form a latticed structure, bending sections are arranged on the auxiliary rods, cross points of the auxiliary rods adjacent to the first plugging surface in the latticed structure are first cross points, and the first plugging surface is covered with a film. The plugging device solves a series of problems caused by incapability of realizing film covering by a traditional vertically alternating three-dimensional interlacing structure in the prior art, film covering is easily realized, plugging is complete, the shape of the compressed plugging device is smaller, an anatomic form is better in adaptability, and the plugging device is convenient to manufacture.

Description

technical field [0001] The present invention relates to the field of percutaneous medical devices, and more specifically, relates to a sheath tube delivery technology that is delivered to the human body and / or animal body by an interventional method to seal the defect opening, tissue breach, internal An occluder for cavities, organ passages, etc. Background technique [0002] Intervention therapy is an emerging treatment method between surgery and medical treatment, including endovascular intervention and non-vascular intervention. After more than 30 years of development, it has now been called the three pillar disciplines together with surgery and internal medicine. To put it simply, interventional therapy is to make a small channel with a diameter of several millimeters on the blood vessel or skin without exposing the lesion, or through the original pipeline of the human body, in the imaging equipment (angiography machine, fluoroscopy machine, CT, MR). , B-ultrasound, et...

Claims

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Application Information

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IPC IPC(8): A61B17/00A61B17/12
CPCA61B17/0057A61B17/12109A61B17/12122A61B17/12172A61B17/12177A61B2017/00575A61B2017/00796
Inventor 李彪葛均波周达新叶金华沈雳
Owner NINGBO DIOCHANGE MEDICAL TECH CO LTD