US 2003/0191483 A1 · Thrombectomy device with multi-layered rotational wire

Abstract

An improvement to a thrombectomy apparatus for breaking up thrombus or other obstructive material in a lumen of a vascular graft or vessel having a wire and flexible sheath relatively movable, wherein the wire is sinuous in configuration and assumes its sinuous configuration when in the deployed configuration and has a straighter configuration in the first configuration. The wire is operatively connected to a motor for rotation of the wire to enable peaks of the sinuous wire to contact a wall of the lumen to break up the thrombus or other obstructive material. The improvement to the thrombectomy apparatus comprises the wire being formed of an inner core formed by a plurality of twisted wires and an outer wire wound directly around the inner core, wherein a distal portion of the outer wire extends distal of the inner core and progressively tapers towards a distal end to form a tapered region.

Drawings

Drawings are temporarily unavailable. Open the PDF at USPTO

Drawings

Claims15

Dependent claims

In a thrombectomy apparatus for breaking up thrombus or other obstructive material in a lumen of a vascular graft or vessel, the apparatus having a flexible sheath and a wire positioned within the flexible sheath, the wire and flexible sheath being relatively movable so the wire has a first configuration and a second deployed configuration, the wire being sinuous in configuration and assuming its sinuous configuration when in the deployed configuration and having a straighter configuration in the first configuration, the wire being operatively connected to a motor for rotation of the wire to enable peaks of the sinuous wire to contact a wall of the lumen to break up the thrombus or other obstructive material, the improvement comprising the wire formed of an inner core formed by a plurality of twisted wires and an outer wire wound directly around the inner core, a distal portion of the outer wire extending distal of the inner core and progressively tapering towards a distal end to form a tapered region.

Dependencies are inferred from the claim text.

Description4,019 words

Summary1,351 words

#1. Technical Field

#This application relates to a vascular device and more particularly to a thrombectomy device with an improved intravenous rotatable wire for clearing thrombus from dialysis grafts.

#2. Background of Related Art

Brief description of the drawings20 figures

#Preferred embodiment(s) of the present disclosure are described herein with reference to the drawings wherein:

#FIG. 1 is a side view of the thrombectomy apparatus of the present invention having a sinuous rotational wire;

#FIG. 2 is a side view of the thrombectomy apparatus of FIG. 1 with one of the housing halves removed to illustrate the internal components of the device;

Detailed description2,282 words

#Referring now in detail to the drawings where like reference numerals identify similar or like components throughout the several views, FIGS. 1 and 2 illustrate the thrombectomy apparatus of the present invention. Apparatus 10 has a housing 12 composed of two housing halves, a flexible catheter (tube or sheath) 20 extending from a distal end 14 of housing 12, and a rotational thrombectomy wire 30. One of the housing halves is removed in FIG. 2 to illustrate the internal components of the apparatus 10.

#Wire 30 is sinuous in configuration, having a substantially linear region extending through most if its length, from a proximal region through an intermediate region until distal region 36. At the distal region 36, wire 30 has a first arcuate region 34 facing a first direction (upwardly as viewed in the orientation of FIG. 1) and a second arcuate region 38 facing a second opposite direction (downwardly as viewed in the orientation of FIG. 1). Thus, as shown, the wire 30 assumes a shape resembling a sine curve.

#The distal tip 37 of wire 30 is slightly curved as it continues the “sine curve.” Distal tip 37 progressively tapers toward the distalmost end 39 (see FIG. 5B). The pitch of the tapered tip 37 is constant; however, it is greater than the rest of the wire 30 which is close-wound. This open-wind and narrowing diameter facilitate attachment of the atraumatic tip described below.

Facts

Application

10/390,416Filed 17 Mar 2003

Priority

4 Apr 2002

Published

9 Oct 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

A61B 17/320758
Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions: with a rotating cutting…
A61B 2017/00867
Material properties: shape memory effect
A61B 2017/22034
Gripping instruments, e.g. forceps, for removing or smashing calculi: for gripping the obstruction or the tissue part from inside
A61B 2017/22042
With a guide wire: details of the tip of the guide wire

Timeline

4 Apr 2002Priority claimedParent application 60/369,953
17 Mar 2003Application filedUS 10/390,416
17 Mar 2003Assigned to Rex Medical, L.P.assignment of assignor's interest
9 Oct 2003Published
11 Jan 2016Assigned to Argon Medical Devices, Inc.assignment of assignor's interest
5 Feb 2016Assigned to Healthcare Financial Solutions, LLC, AS Administrative Agentfirst lien patent security agreement
16 Feb 2016Assigned to Healthcare Financial Solutions, LLC, AS Administrative Agentsecond lien patent security agreement
23 Jan 2018Assigned to Argon Medical Devices, Inc., Manan Medical Products, Inc., Medical Device Technologies, Inc., Promex Technologies, LLCrelease of first lien patent security agreements recorded at reel/frame 037703/0001, 037702/0592, 037702/0580, and 037702/0497
23 Jan 2018Assigned to Argon Medical Devices, Inc., Manan Medical Products, Inc., Medical Device Technologies, Inc., Promex Technologies, LLC, Luther Medical Products, Inc.release of first lien patent security agreements recorded at reel/frame 037703/0001, 037702/0592, 037702/0580, and 037702/0497
23 Jan 2018Assigned to Argon Medical Devices, Inc., Manan Medical Products, Inc., Medical Device Technologies, Inc., Promex Technologies, LLC, Luther Medical Products, Inc.release of second lien patent security agreements recorded at reel/frame 037827/0460, 037827/0526, 037827/0764, and 037827/0882
10 May 2018Assigned to Ubs AG, Stamford Branch, AS Collateral Agentsecond lien patent security agreement
10 May 2018Assigned to Ubs AG, Stamford Branch, AS Collateral Agentfirst lien patent security agreement
13 Sep 2019Assigned to Argon Medical Devices, Inc., Manan Medical Products, Inc., Medical Device Technologies, Inc.termination and release of first lien security interest in patents
13 Sep 2019Assigned to Argon Medical Devices, Inc., Manan Medical Products, Inc., Medical Device Technologies, Inc.termination and release of second lien security interest in patents
19 Jan 2023Assigned to Argon Medical Devices, Inc.change of owner/assignee address
17 Nov 2023Assigned to Hsbc Bank USA, National Association, AS Collateral Agentsecurity interest
25 Mar 2024Assigned to Argon Medical Devices, Inc., Medical Device Technologies, Inc., Manan Medical Products, Inc.release of security interest

Thrombectomy device with multi-layered rotational wire

Life of this patent

Thrombectomy device with multi-layered rotational wire

Life of this patent

Life of this patent

Abstract

Drawings

Drawings

Claims15

Description4,019 words

Drawings

Classification7 codes

Life of this patent

Description4,019 words