# US 10,117,671 B2 · Rotational thrombectomy device

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- Number: US 10,117,671 B2
- Document ID: US10117671B2
- Status: Granted
- Kind: B2
- Application number: 15/270,606
- Filed: 2016-09-20
- Published: 2017-01-12
- Granted: 2018-11-06
- Earliest claimed: 2004-11-17
- Assignees: Argon Medical Devices, Inc.
- Applicants: Argon Medical Devices, Inc.
- Inventors: James F. McGuckin, Jr.; John D. Leedle; Thanu Anidhran
- Web page: https://patentgrep.com/patent/US10117671B2

## CPC

- A61B 17/320758: {with a rotating cutting instrument, e.g. motor driven (A61B17/320725, A61B17/32075 and A61B17/320783 take precedence; for removing intra-ocular material A61F9/00763; endoscopic rotatable cutting instruments A61B17/32002)}
- A61B 2017/00867: {shape memory effect}
- A61B 2017/320733: {with a flexible cutting or scraping element, e.g. with a whip-like distal filament member}
- A61M 2025/09083: {having a coil around a core}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}

## Abstract

A rotatable thrombectomy wire for breaking up thrombus or other obstructive material comprising an inner core composed of a flexible material and an outer wire surrounding at least a portion of the inner core. The outer wire has a sinuous shaped portion at a distal region. The inner core limits the compressibility of the outer wire. The outer wire is operatively connectable at a proximal end to a motor for rotating the wire to macerate thrombus.

## Claims

### Claim 1

A rotational thrombectomy wire comprising:
an inner core composed of a flexible material,
an at least one outer wire wound over at least a portion of the inner core forming a coil;
an exterior surface of the coil extending proximally of a distalmost end of the coil;
the coil having a sinuous shaped portion;
the inner core having a sinuous shaped portion within the sinuous shaped portion of the coil;
a polymeric material positioned over the exterior surface of a first portion of the coil to block interstices of the at least one outer wire,
a portion of a separate distal tip component positioned over the exterior surface of a second portion of the coil;
a flexible polymeric tip positioned over the distal tip component and extending distally therefrom;
the distal tip component extending distally of the distalmost end of the coil;
the distal tip component extending proximally of a proximalmost end of the flexible polymeric tip; and
the thrombectomy wire is operatively connectable to a motor for rotation by the motor.

### Claim 2 (depends on 1)

The rotatable thrombectomy wire of claim 1, wherein the distal tip component includes a recess.

### Claim 3 (depends on 2)

The rotatable thrombectomy wire of claim 2, wherein a portion of the inner core is within the recess.

### Claim 4 (depends on 2)

The rotatable thrombectomy wire of claim 2, wherein a portion of the coil is within the recess.

### Claim 5 (depends on 4)

The rotatable thrombectomy wire of claim 4, wherein the coil is welded to the distal tip component.

### Claim 6 (depends on 1)

The rotatable thrombectomy wire of claim 1, wherein the at least one outer wire comprises a bifilar wire formed by first and second wires wound together side by side so a diameter of the first wire fills a space between adjacent turns of the second wire.

### Claim 7 (depends on 1)

The rotatable thrombectomy wire of claim 1, wherein the distal tip component is composed of stainless steel.

### Claim 8 (depends on 1)

The rotatable thrombectomy wire of claim 1, wherein the flexible polymeric tip is injection molded over the distal tip component.

### Claim 9 (depends on 1)

The rotatable thrombectomy wire of claim 1, wherein the distal tip component contains a dumbbell shaped region.

### Claim 10 (depends on 9)

The rotatable thrombectomy wire of claim 9, wherein the flexible polymeric tip is positioned over the dumbbell shaped region.

### Claim 11 (depends on 10)

The rotatable thrombectomy wire of claim 10, wherein the flexible polymeric tip is injection molded over the dumbbell shaped region.

### Claim 12 (depends on 1)

The rotatable thrombectomy wire of claim 1, wherein the inner core includes multiple wires twisted together.

### Claim 13 (depends on 1)

The rotatable thrombectomy wire of claim 1, wherein the polymeric material is applied as a coating.

### Claim 14 (depends on 1)

The rotatable thrombectomy wire of claim 1, wherein the polymeric material is applied as a shrink wrap material.

### Claim 15 (depends on 1)

The rotatable thrombectomy wire of claim 1, wherein the inner core is composed of nylon material.