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Vascular implant, conveying device and medical equipment

A delivery device and implant technology, applied in the field of medical devices, can solve problems such as inability to stably transport vascular implants, difficulty in controlling the magnitude of friction, and unloading of vascular implants, so as to reduce the difficulty of surgical operations , Locking and unlocking operation is convenient, and the effect of improving safety

Pending Publication Date: 2019-08-23
MICROPORT NEUROTECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual operation, the magnitude of the frictional force is difficult to control, and it is easy to cause the unloading of the vascular implant (that is, the vascular implant falls off the delivery rod), so that the vascular implant cannot be transported stably, thereby affecting the operation. Effect

Method used

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  • Vascular implant, conveying device and medical equipment
  • Vascular implant, conveying device and medical equipment
  • Vascular implant, conveying device and medical equipment

Examples

Experimental program
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Effect test

Embodiment 1

[0098] Such as Figure 4 As shown, in this embodiment, the delivery rod 4 includes a second connecting portion, the second connecting portion includes at least two second connecting pieces 3, and the at least two second connecting pieces 3 are spaced apart in the axial direction of the rod body ground setting. Assuming that there are two second connecting pieces 3 , the axial distance between the two second connecting pieces 3 is configured to allow engaging at least one first connecting piece 2 . Since the first connecting piece 2 can be an elastic member, it can be compressed between the two second connecting pieces 3, so the axial distance between the two second connecting pieces 3 can be less than or equal to the first connecting piece 2 The axial length (that is, the length before compression). However, the first connector 2 can also be a rigid member without elasticity, that is, non-deformable. At this time, the axial distance between the two second connectors 3 can be...

Embodiment 2

[0105] Such as Figure 7 with Figure 8 As shown, in this embodiment, the second connecting part of the delivery rod 4 includes at least one second connecting part 3, while the first connecting part of the proximal end 11 of the support 1 includes at least two first connecting parts 2, at least The two first connecting parts 2 are arranged at intervals along the axial direction at the proximal end of the stent 1 . Below it is assumed that there are two first connectors 2 . The axial distance between the two first connecting pieces 2 is configured to allow at least one second connecting piece 3 to be engaged. Here, the axial distance between the two first connecting parts 2 may be greater than the axial length of the second connecting part 3, or less than or equal to the axial length of the second connecting part 3, for example, the first connecting part 2 is an elastic member , can be stretched or compressed.

[0106] Such as Figure 9 As shown, in actual operation, in the ...

Embodiment 3

[0109] In this embodiment, the first connection portion at the proximal end of the stent includes more than two first connection groups, and more than two first connection groups are arranged at intervals along the axial direction of the stent 1, and each first connection group includes two Above the first connecting piece 2, more than two first connecting pieces 2 in each first connecting group are arranged at intervals along the axial direction of the bracket 1, and the buckle 13 in the same first connecting group is on the bracket 1 aligned axially. Axially aligned means that, on the same projection plane perpendicular to the axis of the bracket, the axial projections of the buckles 13 in the same first connection group are coincident.

[0110] Further, the inventors found that when the radial dimension of the first connecting member 2 is relatively large, or the number of buckle members 13 is large, the compressed size of the stent 1 and its delivery device is too large. ...

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Abstract

The invention relates to a vascular implant, a conveying device and medical equipment. The vascular implant and a conveying rod maintains relative still axially, so that the problem that the vascularimplant is unloaded is avoided and the conveying stability of the vascular implant is improved. The vascular implant provided by the invention comprises a first connecting part; the conveying device comprises a conveying rod and a chamber; the conveying part comprise a second connecting part; the first connecting part is used for being in clamping connection with the second connecting part separably; and the first connecting part and the conveying rod are used for being accommodated in the chamber. When the first connecting part and the conveying rod are accommodated in the chamber, the firstconnecting part is constrained by the chamber, and the first connecting part and the second connecting part maintain a clamping state, so that axial locking between the vascular implant and the conveying rod is realized; and when the first connecting part is separated from the chamber, the first connecting part is relieved from the constraint of the chamber, and the first connecting part and the second connecting part are positioned in a separable state, so that axial unlocking between the vascular implant and the conveying rod is realized.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a vascular implant, a delivery device and medical equipment. Background technique [0002] Minimally invasive intervention is a treatment method for vascular aneurysms, which usually involves delivering vascular implants, such as but not limited to stents, coils, aneurysm occlusion devices, etc., to the lesion site through a delivery device. The delivery device includes a delivery rod. During actual delivery, the delivery rod cooperates with the vascular implant and is placed together in the delivery sheath, and then the delivery rod pushes the vascular implant in the delivery sheath to realize the release of the vascular implant. [0003] In the prior art, the vascular implant is usually delivered in the delivery sheath through static friction with the delivery rod, that is, the vascular implant is placed on the outside of the delivery rod after being crimped, and there ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/90A61F2/91A61F2/966A61F2/97A61B17/12
CPCA61F2/90A61F2/91A61F2/966A61F2/97A61B17/12113A61B17/12145A61B2017/1205A61B2017/12054A61F2002/9665A61F2250/0098A61F2/848A61F2/9522A61B17/12172
Inventor 赵涵饴田浩彭晴王芹芬
Owner MICROPORT NEUROTECH SHANGHAI
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