Thrombus removal system and process

Details Thrombus removal system and process Thrombus removal system and process

2011-06-07

2011-06-07

Ho, (Jackie) Tan-Uyen T (Department: 3731)

Surgery

Instruments

Blood vessel, duct or teat cutter, scrapper or abrader

C606S200000

Reexamination Certificate

active

07955345

ABSTRACT:
A device capable of capturing and facilitating the removal of a thrombus in blood vessels (or stones in biliary or urinary ducts, or foreign bodies) uses a soft coil mesh with the aid of a pull wire or string to engage the surface of a thrombus, and remove the captured thrombus. The soft coil mesh is formed by an elongated microcoil element that forms the helical elements of a macrocoil element. The microcoil element provides a relatively elastic effect to the helical elements forming the macrocoil and allows for control of gripping forces on the thrombus while reducing non-rigid contact of the device with arterial walls. The use of multiple coil mesh elements, delivered through a single lumen or multiple lumens, preferably with separate control of at least one end of each coil, provides a firm grasp on a distal side of a thrombus, assisting in non-disruptive or minimally disrupted removal of the thrombus upon withdrawal of the device.

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