Hand-held grasping device

US11172935B2 · kind B2 · utility

Assignee

• City of Hope · US

Inventors

• David T. Wong · Newton, US
• Anthony Le · San Francisco, US
• Gagandeep Singh · Duarte, US
• H. Lawson Fisher · Portola Valley, US
• James McCrea · Albany, US

Key dates

• Filing date: Aug 20, 2015
• Grant date: Nov 16, 2021
• Expiry date: Nov 29, 2036

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B25B7/10
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A hand tool has a pivot connection pivotally attaching a first arm to a second arm, with the pivot connection fixed relative to the first arm and movable to first and second positions relative to the second arm. A spring urges the pivot connection into the first position. When jaws on the front ends of the arms clamp tissue with force greater than a pre-set threshold, the spring force is overcome and the jaws may move linearly apart, allowing for more uniform clamping of the tissue. The first arm may have an arm spring extending between a front segment pivotally attached to a rear segment of the first arm.