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Class Information
Number: 604/213
Name: Surgery > Means for introducing or removing material from body for therapeutic purposes (e.g., medicating, irrigating, aspirating, etc.) > Treating material introduced into or removed from body orifice, or inserted or removed subcutaneously other than by diffusing through skin > Material introduced or removed through conduit, holder, or implantable reservoir inserted in body > Means moved by person to inject or remove fluent material to or from body inserted conduit, holder, or reservoir > Injector or aspirator syringe supported only by person during use (e.g., hand held hypodermic syringe, douche tube with forced injection, etc.) > Having collapsible material reservoir (e.g., squeeze bulb, etc.) > Having means to prevent fluid return to reservoir
Description: Subject matter including means, such as a one way valve, for preventing reentry of the material to the collapsible holder.

Patents under this class:

Patent Number Title Of Patent Date Issued
8529513 Device for metered administration of a liquid product Sep. 10, 2013
8444027 One way valve assembly May. 21, 2013
8221414 Catheter Jul. 17, 2012
8177757 Chemical liquid injection system May. 15, 2012
8118780 Hydraulic remote for a medical fluid injector Feb. 21, 2012
8087553 One way valve assembly Jan. 3, 2012
7997460 Continuously sealing one way valve assembly and fluid delivery system and formulations for use therein Aug. 16, 2011
7874467 Metered drop push button dispenser system Jan. 25, 2011
7819845 Syringe plunger jacket with expandable seal Oct. 26, 2010
7651481 Self-sealing male connector device with collapsible body Jan. 26, 2010
7513396 One way valve assembly Apr. 7, 2009
7306129 One way valve assembly Dec. 11, 2007
7144385 Discharging implement for medical care Dec. 5, 2006
7074210 Universal protector cap with auto-disable features for needle-free injectors Jul. 11, 2006
6626869 Guide wire introducer Sep. 30, 2003
6605064 Single-use syringe Aug. 12, 2003
6394982 Fibrin glue applicator system May. 28, 2002
5879336 Device for injecting a liquid Mar. 9, 1999
5836484 Contamination-safe multiple-dose dispensing cartridge for flowable materials Nov. 17, 1998
5772665 Device for mixing a pharmaceutical composition with an other agent Jun. 30, 1998
5484913 Calcium-modified oxidized cellulose hemostat Jan. 16, 1996
5474541 Valved nozzle for re-usable reservoir of a flowable product Dec. 12, 1995
5342329 Portable disposable device for post-surgical suction Aug. 30, 1994
5261881 Non-reusable dispensing apparatus Nov. 16, 1993
5222948 Injection port for single-use syringe Jun. 29, 1993
5219337 Liquid chemicals injector having a liquid container and catheter Jun. 15, 1993
5137177 Dispensing tube with tubewall ribs and rear spherical plunger ball Aug. 11, 1992
5067948 Safety, packaging, injection and disposal system for pre-filled pharmaceutical vials Nov. 26, 1991
4950254 Valve means for enteral therapy administration set Aug. 21, 1990
4926860 ARthroscopic instrumentation and method May. 22, 1990
4828546 Bulb evacuator for closed wound suction May. 9, 1989
4776848 Urethral fluid application device and system Oct. 11, 1988
4522622 Multiple fluid pulse dispenser Jun. 11, 1985
4513891 Spray dispensing container and valve therefor Apr. 30, 1985
4392858 Wound drainage device Jul. 12, 1983
4324242 Feminine syringe Apr. 13, 1982
4259952 Blood diluting method and apparatus Apr. 7, 1981
4200097 Disposable douche Apr. 29, 1980
4140120 Portable bidet Feb. 20, 1979
3986509 Disposable vaginal douche syringe Oct. 19, 1976

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