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Embolectomy cage

A technique for removing a thrombus and an elongated member is applied in the field of a thrombus removal cage with a double-pillar structure, which can solve the problems of reducing the pillars, increasing the local pressure of the pillars, and damaging the blood vessels.

Active Publication Date: 2014-08-20
STRYKER CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, this larger opening reduces the number of struts, resulting in the total radial force required to engage the plug being distributed over fewer struts
Because strut widths are typically within the ranges listed above, this arrangement increases the local pressure of each strut on the vessel wall, which can lead to vessel damage

Method used

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Examples

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Embodiment Construction

[0025] For the terms defined below, these definitions shall apply unless a different definition is given in the claims or elsewhere in this specification.

[0026] All numerical values ​​herein, whether expressly or not, are assumed to be modified by the term "about". The term "about" generally refers to a numerical range considered equivalent to the recited value (ie, having the same function or result). In many instances, the term "about" may include numerical values ​​that are rounded to the nearest significant figure.

[0027] The recitations of numerical ranges by endpoints include all numbers within that range (eg, 1 to 5 includes 1, 1.5, 2, 2.75, 3, 3.80, 4, and 5).

[0028] As used in this specification and the appended claims, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. As used in this specification and the appended claims, the term "or" is generally employed in its sense including "and / or" unless th...

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Abstract

An embolectomy cage having an elongate axis and a circumference comprises a plurality of paired, closely spaced, substantially parallel, elongate members collectively defining a plurality of open cells, wherein individual elongate members of the pairs are connected at nodes located between respective pairs of axially adjacent cells and circumferentially adjacent cells, and wherein at least one elongate member spans each node without forming a connection to another elongate member.

Description

technical field [0001] The present invention generally relates to medical devices. More specifically, the present invention relates to a thrombectomy cage having a double-pillar structure. Background technique [0002] Blood thrombi can embolize and embolize in the patient's vasculature. Sometimes these plugs are dissolved in the blood safely and harmlessly. However, at other times, such emboli can lodge in blood vessels, and they can partially or completely block the flow of blood. If a blood vessel supplying blood to sensitive tissues such as the brain, lungs or heart is partially or completely blocked, for example, severe tissue damage can result. [0003] When symptoms of a blockage are evident, such as a blockage leading to a stroke, immediate action should be taken to reduce or eliminate the resulting tissue damage. One approach is to treat patients with clot-dissolving drugs. However, these drugs do not immediately dissolve a patient's blood clot. [0004] Throm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/221
CPCA61B17/221A61B2017/2212A61F2/01A61B2017/22001A61B2017/22094A61B2017/22034
Inventor S·C·波特
Owner STRYKER CORP
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