US 8,574,253 B2Granted

Method, system and device for tissue removal

AssigneeHologic, Inc.

InventorsWilliam Harwick Gruber, Ronald David Adams, Albert Chun-Chi Chin, Eric Karl Litscher, Roy Hewitt Sullivan, Paul DiCesare, Jeffrey Radziunas, Daniel Vigliotti, Bryan Dale Knodel, Chris Scott Daniels, Kevin J. Vititoe, Michael Anthony Lorenz, Paul P. Kolada, Ryan Scott Crisp, Chris William Cicenas, Ludwin M. Mora, Brent Lee Burchfield

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Abstract

A method and device for tissue removal. The device may be used to remove uterine fibroids and other abnormal gynecological tissue. According to one embodiment, the device includes a housing, an outer tube, and an inner tube. The outer tube is fixed to the housing and includes a side window proximate to its distal end. The side window may have sloped proximal and distal ends. The inner tube has a distal end positioned within the outer tube, the distal end being adapted to rotate and, at the same time, to move back and forth past the side window, with the rotational and translational movement of the inner tube being independently controllable. The distal end of the inner tube may have an external bevel. Suction is applied to the proximal end of the inner tube to draw tissue into the side window and to remove resected tissue through the inner tube.

Claims11

Dependent claims

A uterine fibroid tissue removal device, comprising:

an elongate outer tubular member having an outside diameter of no more than about 3.5 mm, the outer tubular member including a tissue receiving side window configured to receive uterine fibroid tissue to be severed from a uterus wall;
an inner tubular member positioned within the outer tubular member, the inner tubular member comprising a proximal end, an open distal end, and a tissue aspiration lumen extending therebetween;
a translational drive configured to oscillate the inner tubular member translationally along a longitudinal axis of the inner tubular member, such that the open distal end of the inner tubular member oscillates translationally across the tissue receiving side window of the outer tubular member to thereby sever uterine fibroid tissue extending therethrough;
and
a rotational drive that rotates the inner tubular member at a rate of at least 5000 revolutions per minute about the longitudinal axis of the inner tubular member while the inner tubular member oscillates translationally across the tissue receiving side window, such that the device is capable of removing uterine fibroid tissue severed by the inner tubular member at a rate of at least about 1.8 gm/min.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/098,250Filed 4 Apr 2008 · us provisional application
Priority: 6 Apr 2007
Published: US 2008/0249553 A19 Oct 2008
Granted: 5 Nov 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification20 codes

A61B 17/32002
Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes: with continuously rotating, oscillating or reciprocating cutting instruments
A61B 17/32053
Excision instruments: punch like cutting instruments, e.g. using a cylindrical or oval knife
A61B 17/42
Surgical instruments, devices or methods: gynaecological or obstetrical instruments or methods
A61M 1/842
Drainage tubes; Aspiration tips: rotating

Family

Application60/910,618Us provisional application · filed 6 Apr 2007
Application60/910,625Us provisional application · filed 6 Apr 2007
Application60/986,912Us provisional application · filed 9 Nov 2007
US 2008/0249553 A1Pre-grant publication · published 9 Oct 2008
US 8,574,253 B2This patent

From the US filing history. Foreign family members aren’t listed.