CLOT REMOVAL DEVICE WITH STEERABLE ELEMENT

• US 20130325056A1
• Filed: 08/08/2013
• Published: 12/05/2013
• Est. Priority Date: 08/29/2008
• Status: Active Grant

• Current Assignee: Rapid Medical Ltd.
• Original Assignee: Rapid Medical Ltd.
• Inventors: ECKHOUSE, Ronen, ECKHOUSE, Shimon, SUDIN, Yuri
• Granted Patent: US 10,751,073 B2
• Time in Patent Office: Days
• US Class Current: 606/200
• CPC Class Codes: A61B 17/22 Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for dilators A61M29/00
• CPC Class Codes: A61B 17/22031 Gripping instruments, e.g. forceps, for removing or smashing calculi A61B17/221 takes precedence
• 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: A61B 2017/00685 Archimedes screw
• CPC Class Codes: A61B 2017/00867 shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61B 2017/22034 for gripping the obstruction or the tissue part from inside
• CPC Class Codes: A61B 2017/2217 single wire changing shape to a gripping configuration
• CPC Class Codes: A61B 2017/306 holding by means of suction
• CPC Class Codes: A61F 2/915 with bands having a meander structure, adjacent bands being connected to each other

Abstract

A clot removal device and method for removing a clot from a blood vessel are provided, where the clot removal device includes a shaft and an elongate clot engagement element having one end connected to the shaft and a distal end remote from the end connected to the shaft, and where the shaft and elongate clot engagement element having a principal longitudinal axis. Further, the distal end can include an end formation forming a curved contact surface at the distal end, and the end formation can be displaced to one side of the principal longitudinal axis.

Claims

1. A clot removal device, comprising:

a shaft; and

an elongate clot engagement element having one end connected to the shaft and a distal end remote from the end connected to the shaft;

the shaft and elongate clot engagement element having a principal longitudinal axis;

wherein the distal end comprises an end formation forming a curved contact surface at the distal end; and

wherein the end formation is displaced to one side of the principal longitudinal axis.

2. The device of claim 1, wherein the engagement element comprises a coil.

3. The device of claim 1, wherein the end formation comprises a curved section of the engagement element.

4. The device of claim 3, wherein the curved section has a J-shape.

5. The device of claim 3, wherein the curved section has two curved portions.

6. The device of claim 1, wherein the end formation comprises an over-sized tip at the distal end.

7. The device of claim 6, wherein the over-sized tip comprises a ball-like formation.

8. The device of claim 6, wherein the engagement element proximal the over-sized tip exhibits a substantial variation in pitch.

9. The device of claim 6, wherein the engagement element proximal the over-sized tip exhibits a substantial variation in radius.

10. A method of removing a clot from a blood vessel, comprising:

deploying a clot removal device according to claim 80 into a blood vessel;

advancing the device in a blood vessel to a junction of multiple blood vessels;

rotating the shaft and engagement element about the principal longitudinal axis such that the end portion faces a selected blood vessel;

advancing the device along the selected blood vessel to engage a clot; and

withdrawing the device from the blood vessel.