Embolic protection device
First Claim
1. An embolic protection device, comprising:
- an approximately cylindrical outer structure (102) made of a filter mesh material;
an approximately conical inner structure (104) made of a filter mesh material positioned inside of the cylindrical outer structure (102);
one or more radial support elements (174), each support element being connected at one end to a narrow upstream end of the conical inner structure (104) and at another end to the cylindrical outer structure (102) to maintain the narrow upstream end of the conical inner structure (104) within the cylindrical outer structure (102); and
a graspable structure (122) configured to be engaged by a retrieval catheter;
wherein on a downstream end (110) of the embolic protection device (100), a wider end of the conical inner structure (104) is joined to the cylindrical outer structure (102);
wherein an upstream end (108) of the embolic protection device (100) is open for blood to flow between the conical inner structure (104) and the cylindrical outer structure (102);
with a space between the conical inner structure (104) and the cylindrical outer structure (102) defining a collection chamber (103) for captured emboli;
wherein the narrow upstream end of the conical inner structure (104) has a catheter port (106) configured for passage of a catheter shaft through the catheter port (106); and
wherein the graspable structure (122) is disposed on the downstream end (110) of the embolic protection device (100).
1 Assignment
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Accused Products
Abstract
An embolic protection device for use in a patient'"'"'s blood vessel, such as the aorta, has an approximately cylindrical outer structure made of a filter mesh material and an approximately conical inner structure also made of a filter mesh material. On the downstream end of the embolic protection device, the wider end of the conical inner structure is joined to the cylindrical outer structure. The upstream end of the embolic protection device is open for blood to flow between the conical inner structure and the cylindrical outer structure. The space between the conical inner structure and the cylindrical outer structure defines a collection chamber for captured emboli. The narrow upstream end of the conical inner structure has a catheter port with a resilient seal that is sized for passage of a catheter shaft. The filter mesh material may be self-supporting or it may be supported on a resilient-framework or an inflatable framework.
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Citations
32 Claims
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1. An embolic protection device, comprising:
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an approximately cylindrical outer structure (102) made of a filter mesh material; an approximately conical inner structure (104) made of a filter mesh material positioned inside of the cylindrical outer structure (102); one or more radial support elements (174), each support element being connected at one end to a narrow upstream end of the conical inner structure (104) and at another end to the cylindrical outer structure (102) to maintain the narrow upstream end of the conical inner structure (104) within the cylindrical outer structure (102); and a graspable structure (122) configured to be engaged by a retrieval catheter; wherein on a downstream end (110) of the embolic protection device (100), a wider end of the conical inner structure (104) is joined to the cylindrical outer structure (102); wherein an upstream end (108) of the embolic protection device (100) is open for blood to flow between the conical inner structure (104) and the cylindrical outer structure (102); with a space between the conical inner structure (104) and the cylindrical outer structure (102) defining a collection chamber (103) for captured emboli; wherein the narrow upstream end of the conical inner structure (104) has a catheter port (106) configured for passage of a catheter shaft through the catheter port (106); and wherein the graspable structure (122) is disposed on the downstream end (110) of the embolic protection device (100). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification