Technical Briefs

Preliminary Design of a Minimally Invasive Mitral Valve Heart Retractor

[+] Author and Article Information
M. Susan Hallbeck

University of Nebraska-Lincoln,
Lincoln, NE;
Mayo Clinic,
Rochester MN

Manuscript received March 15, 2013; final manuscript received April 26, 2013; published online July 3, 2013. Assoc. Editor: Arthur G. Erdman.

J. Med. Devices 7(3), 030938 (Jul 03, 2013) (3 pages) Paper No: MED-13-1105; doi: 10.1115/1.4024508 History: Received March 15, 2013; Revised April 26, 2013

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Kypson, A., 2007, “Recent Trends in Minimally Invasive Cardiac Surgery,” Cardiology, 107(3), pp. 147–158. [CrossRef] [PubMed]
Gillinov, M., and Mihaljevic, T., 2010, “Minimally Invasive Mitral Valve Repair,” Cleveland Clinic, Web, 17 Sep 2010, http://my.clevelandclinic.org/heart/disorders/valve/mini_mv.aspx
Mishra, Y. K., Malhotra, R., Mehta, Y., Sharma, K., Kasliwal, R., and Trehan, N., 1999, “Minimally Invasive Mitral Valve Surgery Through Right Anterolateralminithoracotomy,” The Annals of Thoracic Surgery, 68, pp. 1520–1524.
ASM Standard Volume 110th edition: Properties and Selection: Irons, Steels, and High Performance Alloys, 1992.
Budynas, R. G., and Keith, N. J., 2008, Shigley's Mechanical Engineering Design8th Edition, McGraw Hill Companies Inc.


Grahic Jump Location
Fig. 1

Progression of surgical insertion of Heartport® retractor. (a) Insertion of blade using forceps. (b) Rod punctured into chest. (c) Rod screwed into blade to make the instrument become one piece. Pulled vertical (arrow) to raise atrial tissue. (d) The current retractor with the threaded rod attached to the Blade (right).

Grahic Jump Location
Fig. 2

Rendering of the ball and socket showing (left to right) the puncture rod, the socket cap with threading for the puncture rod to enter, the ball and blade rod, the socket bottom with threading for the socket top. The same puncture rod is used in each design. The ball and socket joint is used between the puncture rod and the blade.

Grahic Jump Location
Fig. 3

Angled views for socket top and bottom (Left). The puncture rod compressing the ball against the socket bottom in the new design concept rendering (Right). Socket cap is not included in image for clarity purposes. However, the threading for the socket cap is present.




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