Dual port syringe

- Invasatec, Inc.
Description

FIG. 1 is a perspective view of a dual port syringe, embodying our new design;

FIG. 2 is a bottom plan view of FIG. 1;

FIG. 3 is a top plan view of FIG. 1;

FIG. 4 is a front side elevational view of FIG. 1, the back side elevational view being a mirror image thereof;

FIG. 5 is a left side elevational view of FIG. 1; and,

FIG. 6 is a right side elevational view of FIG. 1.

Referenced Cited
U.S. Patent Documents
3734258 May 1973 Roob
3768484 October 1973 Gawura
3768518 October 1973 Roth et al.
3910466 October 1975 Collar
3957052 May 18, 1976 Topham
4000685 January 4, 1977 Montalvo, Jr.
4187849 February 12, 1980 Stim
4345595 August 24, 1982 Whitney et al.
4355639 October 26, 1982 Di Salvo
4366831 January 4, 1983 Scott
4469481 September 4, 1984 Kobayashi
4475666 October 9, 1984 Bilbrey et al.
4502488 March 5, 1985 Degironimo et al.
4525167 June 25, 1985 Goldberg et al.
4585941 April 29, 1986 Bergner
4812724 March 14, 1989 Langer et al.
4842576 June 27, 1989 Lysaght et al.
4865581 September 12, 1989 Lundquist et al.
4903705 February 27, 1990 Imamura et al.
4921488 May 1, 1990 Maitz et al.
5059174 October 22, 1991 Valliancourt
5062835 November 5, 1991 Maitz et al.
5084011 January 28, 1992 Grady
5246012 September 21, 1993 Strickland
5334170 August 2, 1994 Moroski
5340364 August 23, 1994 Ghelli et al.
5342298 August 30, 1994 Michaels et al.
5417213 May 23, 1995 Prince
5423746 June 13, 1995 Burkett et al.
5472403 December 5, 1995 Cornacchia et al.
5485831 January 23, 1996 Holdsworth et al.
5515851 May 14, 1996 Goldstein
5549569 August 27, 1996 Lynn et al.
5573515 November 12, 1996 Wilson et al.
Foreign Patent Documents
0 554 716 A1 August 1993 EPX
0 567 944 A1 November 1993 EPX
WO 88/03815 June 1988 WOX
WO 93/15658 August 1993 WOX
Patent History
Patent number: D412205
Type: Grant
Filed: Jul 29, 1997
Date of Patent: Jul 20, 1999
Assignee: Invasatec, Inc. (Eden Prairie, MN)
Inventors: Douglas Duchon (Chanhassen, MN), Thomas Paulson (Minneapolis, MN), Robert F. Wilson (Shoreview, MN), Jiyan Liu (Roseville, MN)
Primary Examiner: Susan J. Lucas
Assistant Examiner: Cynthia E. Ramirez
Law Firm: Oppenheimer Wolff & Donnelly, LLP
Application Number: 0/74,195
Classifications
Current U.S. Class: Conduit Or Nozzle (e.g., Syringe, Cannula, Catheter, Etc.) (8) (D24/112)
International Classification: 2402;