Tissue removal device with high reciprocation rate

US20090270898A1Inactive Publication Date: 2009-10-29HOLOGIC INC
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
HOLOGIC INC
Publication Date
2009-10-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

Disclosed is a tissue removal device. The device includes an outer tubular body, an inner tubular body and a cutting edge on the inner tubular body. The outer tubular body includes a window, which may be opened or closed by moving the cutting edge. The cutting edge has a hardness that exceeds the hardness of the material of the inner tube. The cutting edge may have a Rockwell C hardness of at least about 50, while the inner tube has a Rockwell C hardness of no more than about 40. The cutting edge may be formed by a milling step, and the inner tube may be formed by a drawing step. Tissue severed by the cutting edge may be removed at a rate of at least about 1.8 grams per minute through the inner tube, and the outer tubular body may have an outside diameter of no more than about 3.5 mm.
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Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] The present application is a continuation in part of U.S. patent application Ser. No. 12 / 098,250, filed Apr. 4, 2008 (titled “METHOD, SYSTEM AND DEVICE FOR TISSUE REMOVAL”), which claims the benefit under 35 U.S.C. § 119(e) of U.S. Provisional Application 60 / 910,618, filed Apr. 6, 2007, U.S. Provisional Patent Application Ser. No. 60 / 910,625, filed Apr. 6, 2007, and U.S. Provisional Patent Application Ser. No. 60 / 986,912, filed Nov. 9, 2007 all of which are incorporated herein by reference. The present application is a continuation in part of U.S. patent application Ser. No. 12 / 098,318, filed Apr. 4, 2008 (titled “SYSTEM FOR USE IN PERFORMING A MEDICAL PROCEDURE AND INTRODUCER DEVICE SUITABLE FOR USE IN SAID SYSTEM”), which claims the benefit under 35 U.S.C. § 119(e) of U.S. Provisional Application Ser. No. 60 / 910,618, filed Apr. 6, 2007, and U.S. Provisional Patent Application Ser. No. 60 / 910,625, filed Apr. 6, 2007, all of which are inc...

Claims

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