US Patent Issued to C. R. Bard on Sept. 23 for "Biopsy device having a hydraulic drive assembly" (Arizona Inventor)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,419,618, issued on Sept. 23, was assigned to C. R. Bard Inc. (Franklin Lake, N.J.).

"Biopsy device having a hydraulic drive assembly" was invented by Chad Van Liere (Phoenix).

According to the abstract* released by the U.S. Patent & Trademark Office: "A biopsy device includes a hydraulic drive assembly, a drive mechanism, and a biopsy member. The hydraulic drive assembly includes a chamber housing, a drive piston, a driven piston, a cavity in the chamber housing between the drive piston and the driven piston, and a hydraulic fluid that fills the cavity and hydraulically connects the drive piston to the driven piston. The chamber housing defines a proximal chamber, a distal chamber, ...