Patent · US Active

Biopsy device incorporating an adjustable probe sleeve

US7481775B2 · kind B2 · utility

426Cited by

33References

16Claims

0Family size

Assignee

Ethicon Endo-Surgery, Inc. · US

Inventors

Robert F. Weikel, Jr. · Hamilton, US
Gwendolyn P. Payne · Cincinnati, US
John R. Andrisek · Hamilton, US

Key dates

Filing date	Mar 29, 2006
Grant date	Jan 27, 2009
Priority date	—
Expiry date	Jun 20, 2026

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B10/0283
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

Devices and methods for varying the size of a tissue sample in a biopsy device are disclosed. The biopsy device includes a needle with a tissue aperture and an inner cutter which translates within the needle. The inner cutter may be controlled to selectively block the aperture thereby varying the sample size. A half cylindrical sleeve may be resiliently attached to the exterior of the needle in order to block the aperture. The sleeve includes gripping flanges on its bottom surface, and a beveled distal tip configured to avoid damage from the inner cutter. The distal tip may include an inner metallic guide or may be heightened to avoid contact with the cutter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.