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Technical Briefs

An Improved Puncture Access Tip-Retraction Mechanism

[+] Author and Article Information
Nikolai Begg

Department of Mechanical Engineering,
Massachusetts Institute of Technology

Manuscript received March 15, 2013; final manuscript received April 25, 2013; published online June 12, 2013. Editor: Arthur G. Erdman.

J. Med. Devices 7(2), 020920 (Jun 12, 2013) (2 pages) Paper No: MED-13-1064; doi: 10.1115/1.4024344 History: Received March 15, 2013; Revised April 25, 2013

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Grahic Jump Location
Fig. 1

Proposed mechanism embodiment in initial (left) and pre-loaded (right) states

Grahic Jump Location
Fig. 2

Prototypes demonstrating puncture mechanism. From left to right: laparoscopic trocar with pin-jointed mechanism, flexure-based trocar, improved flexural mechanism, layered iterative prototype demonstrating pre-locking mechanism, and hypodermic needle mechanism

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