Spiral shaped filter

• US 9,393,034 B2
• Filed: 03/08/2013
• Issued: 07/19/2016
• Est. Priority Date: 01/03/2005
• Status: Expired due to Fees

• Current Assignee: Crux Biomedical, Inc. (Koninklijke Philips N.V.)
• Original Assignee: Crux Biomedical, Inc. (Koninklijke Philips N.V.)
• Inventors: Johnson, Eric, Fogarty, Thomas J., Arko, Frank, Elkins, Jeff, Seery, Martin
• Primary Examiner(s): STRANSKY, KATRINA MARIE
• Application Number:
  US13/791,610
• Publication Number:
  US 20130184744A1
• Time in Patent Office: 1,229 Days
• Field of Search: 606/200, 606/113, 606/114, 606/110, 606/198, 606/159, 604104-106, 604/22
• US Class Current: 1/1
• CPC Class Codes: A61B 17/221 Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions surgical snare instruments A61B17/32056
• CPC Class Codes: A61F 2/01 Filters implantable into blood vessels
• CPC Class Codes: A61F 2/011 Instruments for their placement or removal
• CPC Class Codes: A61F 2002/016 made from wire-like elements
• CPC Class Codes: A61F 2002/018 made from tubes or sheets of material, e.g. by etching or laser-cutting
• CPC Class Codes: A61F 2230/0008 elliptical or oval
• CPC Class Codes: A61F 2230/001 Figure-8-shaped, e.g. hourglass-shaped
• CPC Class Codes: A61F 2230/0067 conical
• CPC Class Codes: A61F 2230/0095 Saddle-shaped
• CPC Class Codes: A61F 2250/0067 Means for introducing or releasing pharmaceutical products into the body
• CPC Class Codes: A61M 2025/0037 characterized by lumina being arranged side-by-side
• CPC Class Codes: A61M 2025/004 characterized by lumina being arranged circumferentially
• CPC Class Codes: A61M 25/0021 characterised by the form of the tubing A61M25/0054 takes precedence
• CPC Class Codes: A61M 25/007 Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked

Abstract

In one embodiment, a filter includes a first spiral support member having a first end and a second end; a second spiral support member positioned adjacent the first spiral support member to form a loop between the first end and the second end; a material covering a portion of the first and the second spiral support members; and a structure attached to the loop.

Claims

1. A filter, comprising:

a first spiral support member;

a second spiral support member positioned adjacent the first spiral support member and joined to the first spiral support member to form a first end and a second end of the filter and at least one loop between the first end and the second end of the filter;

a first material covering a portion of the first and the second spiral support members;

a second material between the first material and the first and second spiral support members, wherein the first material is wrapped around the first and second spiral support members and the second material;

and a structure attached to the loop.

2. The filter of claim 1 wherein the structure is attached to the first material.

3. The filter of claim 1 wherein the second material is one of ePTFe, PTFE, PET, PFA, or FEP.

4. The filter of claim 1 wherein the second material covers the portion of the first and the second spiral support members covered by the first material.

5. The filter of claim 1 wherein the first material and the second material are part of a multi-lumen structure.

6. The filter of claim 1 wherein the structure is attached to the loop by the first material.

7. The filter of claim 5 wherein the structure is attached to one lumen of the multi-lumen structure.

8. The filter of claim 1 wherein the first material is a multi-lumen structure.

9. The filter of claim 8 wherein the multi-lumen structure is configured to release a pharmacological agent.

10. The filter of claim 8 wherein a lumen of the multi-lumen structure is at least partially filled with a pharmacological agent.