Retractor

- OSAKA CITY UNIVERSITY
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Description

FIG. 1 is a front perspective view of a retractor showing our new design.

FIG. 2 is a front elevational view thereof.

FIG. 3 is a rear elevational view thereof.

FIG. 4 is a right side elevational view thereof.

FIG. 5 is a left side elevational view thereof.

FIG. 6 is a top plan view thereof.

FIG. 7 is a bottom plan view thereof.

FIG. 8 is a cross-sectional view thereof, taken along line 8-8 of FIG. 2; and,

FIG. 9 is a perspective view thereof, showing the retractor in use after being inserted into a chest or an abdomen from a small incision, the retractor being deformed in a ring shape in a body, so as to keep the opened part in the opened state.

The broken lines illustrate environmental structure and form no part of the claimed design.

Claims

The ornamental design for a retractor, as shown and described.

Referenced Cited
U.S. Patent Documents
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3364919 January 1968 Hunnicutt
D224138 July 1972 Mahler
3828476 August 1974 Tenenbaum
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D255557 June 24, 1980 Ayson
4738248 April 19, 1988 Ray
D320658 October 8, 1991 Quigley
D366177 January 16, 1996 Dean
D415482 October 19, 1999 Jolson
6196608 March 6, 2001 Ooms
D664149 July 24, 2012 Crisp
8291531 October 23, 2012 Kuo
D781977 March 21, 2017 Lin
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Other references
  • Nargesa Hinges Making Tool PP200, as posted at Nargesa.com [online], captured by Internet Archive Wayback Machine on Jun. 18, 2015, [site visited Apr. 1, 2018]. Available from the Internet, <URL: https://web.archive.org/web/20150618231502/https://www.nargesa.com/en/industrial-machinery/horizontal-press-brake-pp200>.
Patent History
Patent number: D819810
Type: Grant
Filed: Jan 25, 2017
Date of Patent: Jun 5, 2018
Assignees: OSAKA CITY UNIVERSITY (Osaka-shi), OZK CO., LTD. (Yao-shi), SHINWA SYOJI CO., LTD. (Higashiosaka-shi)
Inventors: Toshihiko Shibata (Osaka), Haruhiko Yamasaki (Yao), Katsunori Mitsuhashi (Yao), Yoshiro Morishita (Higashiosaka)
Primary Examiner: Jeffrey D Asch
Assistant Examiner: Rebekah A Caruso
Application Number: 29/591,925
Classifications