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Sheath tip

a technology of body lumen and filtering device, which is applied in the field of filtering device of body lumen debris, can solve the problems of major heart and vascular disease, blockage or narrowing of blood vessels, and lack of oxygenation of the hear

Inactive Publication Date: 2006-12-21
BOSTON SCI SCIMED INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is about improving embolic protection devices used in medical procedures. The invention includes a filter delivery and retrieval assembly that includes a shaft, guidewire, and sheath. The tapering member is also included. This design helps to better protect the patient from embolic events during the procedure.

Problems solved by technology

Heart and vascular disease are majors problem in the United States and throughout the world.
Conditions such as atherosclerosis result in blood vessels becoming blocked or narrowed.
This blockage can result in lack of oxygenation of the heart, which has significant consequences since the heart muscle must be well oxygenated in order to maintain its blood pumping action.
During angioplasty procedures, stenotic debris may also break loose due to manipulation of the blood vessel.

Method used

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Examples

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Embodiment Construction

[0019] The following description should be read with reference to the drawings wherein like reference numerals indicate like elements throughout the several views. The detailed description and drawings illustrate example embodiments of the claimed invention.

[0020] A number of embolic protection devices exist that filter embolic debris generated during an intravascular intervention. Delivering and retrieving the filter often includes the use of a catheter or sheath that is advanced to an appropriate location adjacent, for example, an intravascular lesion. In some cases, the lesion may be expanded with a stent and the delivery or retrieval sheath may need to pass the stent. Thus, it may be desirable for the sheath to have a tapered or rounded tip so as to more easily pass the stent without “catching” or otherwise displacing the stent. The present invention includes several examples of a filter delivery and / or retrieval assembly 10 that includes a tapering member 12 coupled to a deliv...

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PUM

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Abstract

An embolic protection filter delivery and / or retrieval assembly. In one embodiment the assembly includes a shaft having a filter coupled thereto, a sheath, and a tapering member.

Description

[0001] This application is a continuation of U.S. application Ser. No. 10 / 234,260 filed Sep. 4, 2002.FIELD OF THE INVENTION [0002] The present invention pertains to devices for filtering debris from a body lumen. More particularly, the present invention pertains to devices for delivering and retrieving embolic filtering devices. BACKGROUND [0003] Heart and vascular disease are majors problem in the United States and throughout the world. Conditions such as atherosclerosis result in blood vessels becoming blocked or narrowed. This blockage can result in lack of oxygenation of the heart, which has significant consequences since the heart muscle must be well oxygenated in order to maintain its blood pumping action. [0004] Occluded, stenotic, or narrowed blood vessels may be treated with a number of relatively non-invasive medical procedures including percutaneous transluminal angioplasty (PTA), percutaneous transluminal coronary angioplasty (PTCA), and atherectomy. Angioplasty techniqu...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61M29/00A61B17/00A61B17/221A61F2/01
CPCA61F2/013A61F2230/0008A61F2002/011A61F2/011
Inventor RENATI, RICHARD J.DEMOND, JACKSON F.KROLIK, JEFF A.
Owner BOSTON SCI SCIMED INC
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