IP Library › Granted Patent US 12,279,789
Granted Patent B2
US 12,279,789 · App. 17/747,715 · Granted Apr 22, 2025

Catheter device with detachable distal end

Inventors: Anthony J. Fernandez (Castro Valley, CA); Richard R. Newhauser (Redwood City, CA); Himanshu N. Patel (San Jose, CA)
Assignee: Avinger, Inc.
A61B17/320783A61M25/0068A61B2017/00473A61B2017/320064A61B2017/320791
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Quick Facts
Patent No.
US 12,279,789
App. No.
17/747,715
Filed
May 18, 2022
Granted
Apr 22, 2025
Kind
B2
Art Unit
3771
USPC
606/159
Abstract

An atherectomy catheter includes an elongate catheter body, a cutter at a distal end of the catheter body, and a nosecone attached to a distal end of the catheter body. The cutter is configured to excise tissue from the body. The nosecone is configured to hold tissue excised from the cutter. The nosecone includes a distal section, a proximal section, and a connection mechanism that is configured to allow the distal section to attach and detach from the proximal section during use. The distal section includes a plug configured to sit within an inner diameter of the proximal section when the proximal section is connected to the distal section.

Claims (9)

1. An atherectomy catheter comprising:

a catheter body having a catheter body proximal end, a catheter body distal end, a cutting window, and a cutter exposable through the cutting window;

a nosecone having a nosecone proximal end and a nosecone distal end, wherein the nosecone proximal end is configured to couple and decouple from the nosecone distal end; and

a collar having a collar inner surface configured to maintain a detachable connection between the nosecone proximal end with the nosecone distal end.

2. The atherectomy catheter of claim 1 , wherein the nosecone further comprises a hollow interior portion configured to receive excised tissue.

3. The atherectomy catheter of claim 1 , wherein the nosecone is rigid.

4. The atherectomy catheter of claim 1 , wherein the nosecone is flexible.

5. The atherectomy catheter of claim 1 , wherein the nosecone comprises both flexible and rigid regions.

6. The atherectomy catheter of claim 1 , further comprising a guidewire channel disposed on the nosecone and the catheter body.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 21, 2025
From: LUMIVASCULAR, INC.
To: ZYLOX TONBRIDGE MEDICAL LIMITED
Reel/Frame 073068/0209 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 10, 2025
From: AVINGER (ASSIGNMENT FOR THE BENEFIT OF CREDITORS), LLC
To: LUMIVASCULAR, INC.
Reel/Frame 072835/0378 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 10, 2025
From: AVINGER, INC.
To: AVINGER (ASSIGNMENT FOR THE BENEFIT OF CREDITORS), LLC
Reel/Frame 072852/0136 →
SECURITY INTEREST Recorded Apr 30, 2025
From: LUMIVASCULAR, INC.
To: ZYLOX TONBRIDGE MEDICAL LIMITED
Reel/Frame 071135/0568 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 19, 2022
From: FERNANDEZ, ANTHONY J.; NEWHAUSER, RICHARD R.; PATEL, HIMANSHU N.
To: AVINGER, INC.
Reel/Frame 059962/0056 →
Continuity (3)
Continuation 16305136
Provisional Application 62345483 · Jun 3, 2016
Related Publication 20220273336A1 · Sep 1, 2022
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