IP Library › Granted Patent US 6,872,185
Granted Patent B2
US 6,872,185 · App. 10/708,710 · Granted Mar 29, 2005

Dual action aspiration biopsy needle

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 6,872,185
App. No.
10/708,710
Granted
Mar 29, 2005
Kind
B2
Abstract

A biopsy needle scrapes tissue of cellular thickness from a lesion during repeated proximal-to-distal thrusts of the needle along its longitudinal axis of symmetry. A first sharp edge, formed by a beveled distal end of the needle, scrapes tissue during proximal-to-distal travel of the needle. A second sharp edge is provided by a transversely disposed slot formed in the needle near the first sharp edge. The second sharp edge also scrapes tissue during proximal-to-distal travel of the needle. The second sharp edge may be coincident with an exterior surface of the needle elevated with respect to the exterior surface, or recessed with respect to the exterior surface. Another embodiment includes a hinge for enabling pivotal movement of the second sharp edge.

Claims (22)

1. An aspiration biopsy needle, comprising:

a needle of elongate, hollow construction having a proximal end and a beveled distal end;

said needle having a uniform diameter along its extent;

said beveled distal end forming a first sharp edge adapted to scrape cellular material when said needle is displaced from a proximal position to a distal position;

a first slot formed in said needle near said beveled distal end;

said first slot being transversely disposed relative to a longitudinal axis of said needle;

said first slot also being angled relative to a transverse axis of said needle such that a bottom of said first slot is positioned proximal to an opening of said first slot;

said opening of said first slot being in open communication with an exterior surface of said needle;

said first slot including a second sharp edge adapted to scrape cellular material when said needle is displaced from a proximal position to a distal position;

means for communicating a vacuum to said proximal end of said needle so that cellular material scraped by said first sharp edge during proximal-to-distal travel of said needle is pulled into a lumen of said needle and so that cellular material scraped by said second sharp edge during said proximal-to-distal travel of said needle is also pulled into said lumen;

said second sharp edge being elevated with respect to said exterior surface of said needle.

2. An aspiration biopsy needle, comprising:

a needle of elongate, hollow construction having a proximal end and a beveled distal end;

said needle having a uniform diameter along its extent;

said beveled distal end forming a first sharp edge adapted to scrape cellular material when said needle is displaced from a proximal position to a distal position;

a first slot formed in said needle near said beveled distal end;

said first slot being transversely disposed relative to a longitudinal axis of said needle;

said first slot also being angled relative to a transverse axis of said needle such that a bottom of said first slot is positioned proximal to an opening of said first slot;

said opening of said first slot being in open communication with an exterior surface of said needle;

said first slot including a second sharp edge adapted to scrape cellular material when said needle is displaced from a proximal position to a distal position;

means for communicating a vacuum to said proximal end of said needle so that cellular material scraped by said first sharp edge during proximal-to-distal travel of said needle is pulled into a lumen of said needle and so that cellular material scraped by said second sharp edge during said proximal-to-distal travel of said needle is also pulled into said lumen; and

a hinge to which said second sharp edge is mounted to enable pivotal movement of said second sharp edge.

Assignments (18)
RELEASE OF SECURITY INTEREST Recorded Mar 25, 2024
From: HSBC BANK USA, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
To: ARGON MEDICAL DEVICES, INC.; MEDICAL DEVICE TECHNOLOGIES, INC.; MANAN MEDICAL PRODUCTS, INC.
Reel/Frame 066883/0812 →
SECURITY INTEREST Recorded Nov 17, 2023
From: ARGON MEDICAL DEVICES, INC.; MEDICAL DEVICE TECHNOLOGIES, INC.; MANAN MEDICAL PRODUCTS, INC.
To: HSBC BANK USA, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 065612/0206 →
CHANGE OF OWNER/ASSIGNEE ADDRESS Recorded Jan 19, 2023
From: ARGON MEDICAL DEVICES, INC.
To: ARGON MEDICAL DEVICES, INC.
Reel/Frame 062437/0600 →
TERMINATION AND RELEASE OF FIRST LIEN SECURITY INTEREST IN PATENTS Recorded Sep 13, 2019
From: UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT
To: ARGON MEDICAL DEVICES, INC.; MANAN MEDICAL PRODUCTS, INC.; MEDICAL DEVICE TECHNOLOGIES, INC.
Reel/Frame 050375/0599 →
TERMINATION AND RELEASE OF SECOND LIEN SECURITY INTEREST IN PATENTS Recorded Sep 13, 2019
From: UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT
To: ARGON MEDICAL DEVICES, INC.; MANAN MEDICAL PRODUCTS, INC.; MEDICAL DEVICE TECHNOLOGIES, INC.
Reel/Frame 050375/0620 →
FIRST LIEN PATENT SECURITY AGREEMENT Recorded May 10, 2018
From: ARGON MEDICAL DEVICES, INC.; MEDICAL DEVICE TECHNOLOGIES, INC.; MANAN MEDICAL PRODUCTS, INC.
To: UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT
Reel/Frame 046127/0748 →
SECOND LIEN PATENT SECURITY AGREEMENT Recorded May 10, 2018
From: ARGON MEDICAL DEVICES, INC.; MEDICAL DEVICE TECHNOLOGIES, INC.; MANAN MEDICAL PRODUCTS, INC.
To: UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT
Reel/Frame 046127/0602 →
RELEASE OF SECOND LIEN PATENT SECURITY AGREEMENTS RECORDED AT REEL/FRAME 037827/0460, 037827/0526, 037827/0764, AND 037827/0882 Recorded Jan 23, 2018
From: HEALTHCARE FINANCIAL SOLUTIONS, LLC, AS ADMINISTRATIVE AGENT
To: ARGON MEDICAL DEVICES, INC.; MANAN MEDICAL PRODUCTS, INC.; MEDICAL DEVICE TECHNOLOGIES, INC.; PROMEX TECHNOLOGIES, LLC; LUTHER MEDICAL PRODUCTS, INC.
Reel/Frame 045130/0906 →
RELEASE OF FIRST LIEN PATENT SECURITY AGREEMENTS RECORDED AT REEL/FRAME 037703/0001, 037702/0592, 037702/0580, AND 037702/0497 Recorded Jan 23, 2018
From: HEALTHCARE FINANCIAL SOLUTIONS, LLC, AS ADMINISTRATIVE AGENT
To: ARGON MEDICAL DEVICES, INC.; MANAN MEDICAL PRODUCTS, INC.; MEDICAL DEVICE TECHNOLOGIES, INC.; PROMEX TECHNOLOGIES, LLC
Reel/Frame 045130/0525 →
RELEASE OF FIRST LIEN PATENT SECURITY AGREEMENTS RECORDED AT REEL/FRAME 037703/0001, 037702/0592, 037702/0580, AND 037702/0497 Recorded Jan 23, 2018
From: HEALTHCARE FINANCIAL SOLUTIONS, LLC, AS ADMINISTRATIVE AGENT
To: ARGON MEDICAL DEVICES, INC.; MANAN MEDICAL PRODUCTS, INC.; MEDICAL DEVICE TECHNOLOGIES, INC.; PROMEX TECHNOLOGIES, LLC; LUTHER MEDICAL PRODUCTS, INC.
Reel/Frame 045130/0706 →
RELEASE OF SECURITY INTEREST Recorded Feb 17, 2016
From: GENERAL ELECTRIC COMPANY (AS SUCCESSOR IN INTEREST BY MERGER TO GENERAL ELECTRIC CAPITAL CORPORATION), AS ADMINISTRATIVE AGENT
To: MEDICAL DEVICE TECHNOLOGIES, INC.
Reel/Frame 037756/0341 →
SECOND LIEN PATENT SECURITY AGREEMENT Recorded Feb 16, 2016
From: MEDICAL DEVICE TECHNOLOGIES, INC.
To: HEALTHCARE FINANCIAL SOLUTIONS, LLC, AS ADMINISTRATIVE AGENT
Reel/Frame 037827/0764 →
FIRST LIEN PATENT SECURITY AGREEMENT Recorded Feb 5, 2016
From: MEDICAL DEVICE TECHNOLOGIES, INC.
To: HEALTHCARE FINANCIAL SOLUTIONS, LLC, AS ADMINISTRATIVE AGENT
Reel/Frame 037702/0580 →
RELEASE OF SECURITY INTEREST Recorded Apr 15, 2013
From: DEUTSCHE BANK NATIONAL TRUST COMPANY
To: ANGIOTECH PHARMACEUTICALS, INC.; AMERICAN MEDICAL INSTRUMENTS HOLDINGS, INC.; ANGIOTECH AMERICA, INC.; ANGIOTECH BIOCOATINGS CORP.; ANGIOTECH PHARMACEUTICALS (US), INC.; B.G. SULZLE, INC.; MANAN MEDICAL PRODUCTS, INC.; MEDICAL DEVICE TECHNOLOGIES, INC.; QUILL MEDICAL, INC.; SURGICAL SPECIALTIES CORPORATION; ANGIOTECH INTERNATIONAL HOLDINGS CORP.
Reel/Frame 030218/0820 →
SECURITY AGREEMENT Recorded Apr 12, 2013
From: ARGON MEDICAL DEVICES, INC.; LUTHER MEDICAL PRODUCTS, INC.; MANAN MEDICAL PRODUCTS, INC.; MEDICAL DEVICE TECHNOLOGIES, INC.
To: GENERAL ELECTRIC CAPITAL CORPORATION, AS ADMINISTRATIVE AGENT
Reel/Frame 030208/0278 →
SECURITY AGREEMENT Recorded Mar 2, 2009
From: ANGIOTECH PHARMACEUTICALS, INC.; AFMEDICA, INC.; AMERICAN MEDICAL INSTRUMENTS HOLDINGS, INC.; ANGIOTECH AMERICA, INC.; ANGIOTECH BIOCOATINGS CORP.; ANGIOTECH CAPITAL, LLC; ANGIOTECH PHARMACEUTICALS (US), INC.; B.G. SULZLE, INC.; CRIMSON CARDINAL CAPITAL, LLC; MANAN MEDICAL PRODUCTS, INC.; MEDICAL DEVICE TECHNOLOGIES, INC.; NEUCOLL INC.; QUILL MEDICAL, INC.; SURGICAL SPECIALTIES CORPORATION; 0741693 BRITISH COLUMBIA LTD.; 3091796 NOVA SCOTIA COMPANY; ANGIOTECH INTERNATIONAL HOLDINGS, CORP.; ANGIOTECH INVESTMENT PARTNERSHIP
To: WELLS FARGO FOOTHILL, LLC AS AGENT
Reel/Frame 022329/0310 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 12, 2007
From: BIOPSY SCIENCES, LLC
To: MEDICAL DEVICE TECHNOLOGIES, INC.
Reel/Frame 019407/0832 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 12, 2004
From: FISHER, JOHN S
To: BIOPSY SCIENCES, LLC
Reel/Frame 014494/0251 →