Invention Grant
US09125640B2 Biopsy device having a ratchet drive mechanism for driving a biopsy probe assembly
有权
活检装置具有用于驱动活检探针组件的棘轮驱动机构
- Patent Title: Biopsy device having a ratchet drive mechanism for driving a biopsy probe assembly
- Patent Title (中): 活检装置具有用于驱动活检探针组件的棘轮驱动机构
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Application No.: US12981597Application Date: 2010-12-30
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Publication No.: US09125640B2Publication Date: 2015-09-08
- Inventor: Himanshu Mahesh Ranpura , Chad Van Liere
- Applicant: Himanshu Mahesh Ranpura , Chad Van Liere
- Applicant Address: US NJ Murray Hill
- Assignee: C. R. Bard, Inc.
- Current Assignee: C. R. Bard, Inc.
- Current Assignee Address: US NJ Murray Hill
- Main IPC: A61B10/00
- IPC: A61B10/00 ; A61B10/02
Abstract:
A biopsy device includes a first cannula having a first aperture, a second cannula having a second aperture, and a driver unit. The second cannula is disposed co-axially with the first cannula. At least one of the first aperture and the second aperture has a cutting edge. The driver unit has a ratchet drive mechanism operatively coupled to the first cannula and the second cannula. The ratchet drive mechanism includes a first gear fixedly attached to the first cannula. A second gear is fixedly attached to the second cannula. A torsion spring has a first end portion connected to the first gear and a second end portion connected to the second gear. The torsion spring stores energy which when released drivably rotates one of the first gear and the second gear relative to the other of the first gear and the second gear.
Public/Granted literature
- US20120172752A1 BIOPSY DEVICE HAVING A RATCHET DRIVE MECHANISM FOR DRIVING A BIOPSY PROBE ASSEMBLY Public/Granted day:2012-07-05
Information query
