Flexible tube for cartridge filter

• US 7,987,994 B2
• Filed: 06/14/2010
• Issued: 08/02/2011
• Est. Priority Date: 02/24/2003
• Status: Expired due to Fees

• Current Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Inventors: Eskuri, Alan D., Lowe, Brian J.
• Primary Examiner(s): Drodge; Joseph W
• Application Number:
  US12/814,698
• Publication Number:
  US 20100300956A1
• Time in Patent Office: 414 Days
• Field of Search: 210/232, 210/241, 210/359, 210483-485, 210/459, 210/460, 210/497.01, 210/767, 604/96.01, 604/102.01, 604/103.01, 604/106, 604/500, 604/891.1, 606/191, 606/200, 606/108
• US Class Current: 210/359
• CPC Class Codes: A61F 2/011 Instruments for their placement or removal
• CPC Class Codes: A61F 2002/018 made from tubes or sheets of material, e.g. by etching or laser-cutting
• CPC Class Codes: A61F 2230/0006 circular
• CPC Class Codes: A61F 2230/0008 elliptical or oval
• CPC Class Codes: A61F 2230/005 Rosette-shaped, e.g. star-shaped
• CPC Class Codes: A61F 2230/008 paraboloidal

Abstract

Embolic protection filtering devices and methods of making and using the same. The present invention may include an embolic protection filtering device including a filter cartridge that is slidable over medical devices, for example, guidewires. The filter cartridge may have a filter coupled thereto and may have desirable flexibility and trackability characteristics.

Claims

1. A medical device, comprising:

a guidewire or catheter having a proximal region and a distal region;

the guidewire or catheter including one or more stops coupled adjacent the distal region;

a tubular cartridge slidably disposed over the guidewire or catheter;

the tubular cartridge having an interior surface, the interior surface including a plurality of dimples extending inwardly from a cartridge base member to define an inner surface; and

a filter coupled to the cartridge.

2. The medical device of claim 1, wherein the plurality of dimples defined in the interior surface is distributed uniformly.

3. The medical device of claim 1, wherein the plurality of dimples defined in the interior surface is not distributed uniformly.

4. The medical device of claim 1, wherein tubular cartridge comprises a polymer.

5. The medical device of claim 1, wherein at least one of the plurality of the plurality of dimples defined in the interior surface of the tubular cartridge is elongated in one dimension thereby forming a groove.

6. The medical device of claim 1, further comprising a delivery sheath slidably disposed over the guidewire or catheter.

7. The medical device of claim 1, wherein the exterior surface of the tubular cartridge is smooth.

8. The medical device of claim 1, wherein the exterior surface of the tubular cartridge includes a plurality of projections.

9. A medical device, comprising:

an elongate shaft having a proximal region and a distal region;

the shaft including one or more stops coupled adjacent the distal region;

a tubular cartridge slidably disposed over the shaft;

the tubular cartridge having an interior surface with a plurality of dimples defined therein; and

a filter coupled to the cartridge;

wherein the exterior surface of the tubular cartridge includes a plurality of projections; and

wherein said projections included in the exterior surface are radially aligned with dimples defined in the interior surface.