The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 2025
Filed:
Nov. 22, 2021
C.r. Bard, Inc., Franklin Lakes, NJ (US);
Chad C Van Liere, Phoenix, AZ (US);
C.R. Bard, Inc., Franklin Lakes, NJ (US);
Abstract
A biopsy device includes a cutting cannula driver connected to a cutting cannula and a stylet driver connected to a stylet. The cutting cannula driver has a first rack member and a flange. The stylet driver has a second rack member. A drive assembly has a linear motor drive, a transmission assembly, a switching motor drive, and an electrical controller circuit. The electrical controller circuit is configured to execute program instructions to selectively operate the linear motor drive and the switching motor drive. The transmission assembly has a gear assembly drivably coupled to the switching motor drive and configured to releasably engage at least one of the first rack member of the first cannula driver and the second rack member of the second cannula driver. A coupler member is connected to the linear motor drive and is configured to receive and to engage the flange of the first cannula driver.