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Document Number
US Patent 7022112
Issued Date
April 4, 2006
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Abstract
A hand-operated syringe for injecting a liquid under high pressure. The syringe has an elongated barrel with proximal and distal ends, the barrel having opposing finger grips at its proximal end with each finger grip having a proximal inner portion defining a most proximal pressure point closely adjacent the barrel, the pressure points defining a plane substantially perpendicular to the barrel's axis. A plunger is received in the barrel and has a proximal end that includes a pressure surface adapted to receive manual pressure. The pressure surface of the plunger and the finger pressure points are arranged so that when the plunger is in its fully inserted position, its pressure surface is spaced distally of the plane defined by the finger pressure points.
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Number of Claims:
14
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Published
April 4, 2006
Application Number
10/034,686
Filed
December 27, 2001
US Classification
604/227  
Int'l Classification
A61M   5/315   (20060101)  
Examiner
Attorney/Law Firm
Parent Case
This application claims priority from provisional patent application U.S. Ser. No. 60/041,558, filed Mar. 21, 1997 and is a continuation of application Ser. No. 09/045,441, filed Mar. 20, 1998, now abandoned.
USPTO Field of Search
604/93.01   604/181   604/187   604/218   604/220   604/221   604/227  
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