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Closure 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 film covering, and achieve the effects of improving anatomical adaptability, reducing body shape, and making it convenient

Active Publication Date: 2017-05-24
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 interspersed weaving structure in the prior art, and to provide a film that is easy to cover, completely blocked, smaller in size after compression, and better in anatomical adaptability. occluder

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0051] 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.

[0052] like Figures 5a-5b ,as well as Figures 6a-6c As shown, the occluder includes two occlusion disks 10, wherein any occlusion disk 10 includes two central ends 100 and 100', two occlusion surfaces 101 and 101', and one of the occlusion surfaces 101 consists of A plurality of main rods 1010 that directly diverge from the central end 100 to the edge of the blocking surface are formed, and another blocking surface 101' is connected to the blocking surface 101 through a connecting rod 103, and the connecting rod 103 is formed from each of the main rods. The rod 1010 is composed of two or more sub-rods 1011, and the two or more sub-rods 1011 are respectively combined with the sub-rods 1011 of the adjacent main rod 1010 to form another main rod 1010' of the sea...

Embodiment 2

[0061] like Figure 7a-7b As shown, based on the first embodiment, the difference between the second embodiment and the first embodiment is that the sealing surface 101 of any blocking disk 10, the multiple sub-rods 1011 of the main rod 1010 are substantially parallel to each other, and the main rod 1010 penetrates the membrane 102 . This design further fixes the relative position of the membrane 102 and the main rod 1010. After the occlusion 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 chaos of the membranes of traditional occluders. Disorder leads to larger gaps. Because this design reduces the size of the occlusion surface 101 of the occlusion disk 10 after compression, it reduces the minimum diameter of the delivery sheath used, reduces the requirements for the surgical approach, and expands the space. The scope of application of the occluder. The multiple s...

Embodiment 3

[0063] 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.

[0064] like Figures 8a-8b 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 plugging surface 101 is provided with a thread hole 1014, or the gap between the sub-rods 1011 with intertwined weaving structure is used to form a thread hole, and the series thread 1013 passes through the thread hole 1014 to make multiple main rods 1010 connected in series. like Figure 8a As shown, and a sealing surface 101 is wrapped inside the membrane 102, such as Figure 8b As shown, this design makes the film 102 on both sides of the plugging surface 101...

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Abstract

The invention relates to a closure device. The closure device comprises at least one closure plate. The closure plate comprises two central end parts and two closure faces. One closure face is formed by a plurality of main rods directly dispersed from the central end part to the edge direction of the closure face, and the other closure face is connected with the closure face by a connecting rod. The connecting rod is formed by two or more sub-rods dispersed from each main rod. Two or more sub-rods are respectively combined with the sub-rods dispersed from the neighboring main rod so as to form the main rod of the other closure face. The main rods are converged to the central end part of the other closure face, so that two closure faces have the same structure. The connecting rod is provided with a bending section, so that two closure faces can be fit, and at least one of two closure faces is laminated. The closure device is capable of solving a series of the problems in the prior art that the lamination cannot be realized by using the traditional up and down alternate weaving structure. The lamination is easy, the closure is complete, the compressed shape is smaller, the adaptability of the anatomic form is better, and the manufacture is convenient.

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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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/00A61B17/12
CPCA61B17/0057A61B17/12109A61B17/12122A61B17/12145A61B17/1215A61B2017/00796A61B2017/00575
Inventor 李彪葛均波周达新叶金华沈雳
Owner NINGBO DIOCHANGE MEDICAL TECH CO LTD
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