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Improved modifiable occlusion device

A technology of occlusion devices and fragile materials, applied in the field of implants, occlusion devices, and the second condition of pore characteristics, which can solve the problems of patient injury and so on

Active Publication Date: 2014-09-17
DEPUY SYNTHES PROD INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of indiscriminate neck occlusion devices in such arteries may inadvertently injure the patient if the opening (called the "ostium") of the perforating vessel is blocked

Method used

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Examples

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Embodiment Construction

[0035] The invention can be realized by an occlusion device suitable for the endovascular treatment of an aneurysm in the region of the parent vessel of the patient, said occlusion device having at least one support structure such as a metal strut or a porous foam and in combination with the at least one friable material associated with the pore characteristics defined by the structure. The structure is sized for insertion into the patient's vasculature to reach the aneurysmal region of the parent vessel. The friable material initially provides a substantial barrier against flow through the friable material and is capable of localized rupture and partial erosion in a short period of time in the presence of a pressure differential at the ostium of the perforating vessel in communication with the parent vessel At least one, to minimize ischemia downstream of the perforating vessels. about Figure 3-8B A presently preferred configuration of the device according to the invention...

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Abstract

An occlusive device suitable for endovascular treatment of an aneurysm in a region of a parent vessel in a patient, including a structure having a pre-established pore features and having dimensions suitable for insertion into vasculature of the patient to reach the region of the aneurysm in the parent vessel. The device further includes a frangible material associated with the pore features which initially provides a substantial barrier to flow through the frangible material and is capable of at least one of localized rupturing and localized eroding, in the presence of a pressure differential arising at an ostium of a perforator vessel communicating with the parent vessel, within an acute time period to minimize ischemia downstream of the perforator vessel.

Description

[0001] Cross references to related patent applications [0002] This patent application claims priority to US Application No. 13 / 076,474, filed March 31, 2011, which is hereby incorporated by reference in its entirety. Background technique [0003] 1. technical field [0004] The present invention relates to implants within blood vessels of the body, and more particularly to occlusive devices including stents that are irreversibly adjustable in response to local pressure differentials. [0005] 2. Description of related fields [0006] Treating vascular diseases and defects such as aneurysms and other arteriovenous malformations is especially difficult when they are located near critical tissues or when the malformation site is not readily accessible. These two difficulties are especially true for intracranial aneurysms. Surgical treatment of intracranial vasculature defects is challenging and often dangerous due to the sensitivity and limited access of the brain tissue ...

Claims

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Application Information

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IPC IPC(8): A61F2/06A61L27/20A61L27/18A61L27/00A61L27/50
CPCA61B2019/307A61F2/07A61B17/12177A61B17/12031A61B17/12A61B17/12036A61F2002/823A61B17/12109A61F2/82A61F2210/0004A61F2250/0024A61B2090/037
Inventor K.约翰逊J.A.洛伦佐R.斯拉札斯
Owner DEPUY SYNTHES PROD INC
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