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Class Information
Number: 604/228
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.) > With piston or plunger for expelling material from body or injector reservoir > Specific structure of means coupling piston to piston actuator
Description: Subject matter wherein significance is attributed to the means for connecting an initially separated piston and piston actuator, whereafter the actuator can be operated to impel material to or from the reservoir.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
5411489 Pre-filled syringe and pre-filled cartridge having actuating cylinder/plunger rod combination for reducing syringing force May. 2, 1995
5403288 Safety sleeve for dental syringe Apr. 4, 1995
5364359 Syringe with retractable needle Nov. 15, 1994
5352203 Aspirating non-reuseable syringe Oct. 4, 1994
5350367 Snap together hypodermic syringe holder Sep. 27, 1994
5336201 Syringe driving apparatus Aug. 9, 1994
5334691 Hydrophilic polyurethanes of improved strength Aug. 2, 1994
5326350 Soft tissue closure systems Jul. 5, 1994
5318537 Syringe Jun. 7, 1994
5314415 Aspirating plunger for power injector cartridges May. 24, 1994
5304147 Injection syringe Apr. 19, 1994
5257976 Single use disposable syringe Nov. 2, 1993
5232447 Non-reusable syringe Aug. 3, 1993
5232457 Medical syringe Aug. 3, 1993
5232444 Dilatation catheter Aug. 3, 1993
5226882 Single-use syringe with non-retractable piston Jul. 13, 1993
5215524 Plunger for non-reuseable syringe Jun. 1, 1993
5195975 Single use hypodermic syringe Mar. 23, 1993
5195973 Self-destructing disposable safety syringe system with piston and plunger joined by weak attachment sealant Mar. 23, 1993
5181912 Non-reusable syringe Jan. 26, 1993
5178609 Medical liquid injector for continuous transfusion Jan. 12, 1993
5176639 Single-injection syringe Jan. 5, 1993
5158549 Self-locking single-use syringe Oct. 27, 1992
5135512 Disposable syringe for injections Aug. 4, 1992
5135495 Self discarding syringe Aug. 4, 1992
5135511 Assembly for aspirating tissue, including adapter for syringe Aug. 4, 1992
5120816 Hydrophilic polyurethanes of improved strength Jun. 9, 1992
5112307 Dental syringe having a medication filled carpule and an automatically-detaching piston stem May. 12, 1992
5090962 Non-reusable syringe Feb. 25, 1992
5090961 Single use syringe Feb. 25, 1992
5085638 Single use disposable syringe Feb. 4, 1992
5084017 Self disabling, single use, hypodermic syringe Jan. 28, 1992
5078686 Single-use syringe Jan. 7, 1992
5059179 Non-reusable syringe assembly Oct. 22, 1991
5050617 Removable handle and means for attachment to a syringe or phlebotomy device Sep. 24, 1991
5047017 Syringe Sep. 10, 1991
5032114 Syringe Jul. 16, 1991
5007904 Plunger for power injector angiographic syringe, and syringe comprising same Apr. 16, 1991
5004460 Non-reusable syringe Apr. 2, 1991
5004124 Method and apparatus for dispensing a fluid substance Apr. 2, 1991
4973309 Disposable syringe Nov. 27, 1990
4973308 Injection syringe with mechanism preventing reuse Nov. 27, 1990
4968303 Hypodermic syringe holder Nov. 6, 1990
4966585 Infusion apparatus Oct. 30, 1990
4950240 Hypodermic syringe for single use Aug. 21, 1990
4950243 Syringe for one sole use Aug. 21, 1990
4944723 Universal disposable safety syringe system Jul. 31, 1990
4931043 Ratchet connector for hypodermic syringe pistons Jun. 5, 1990
4923443 Single use syringe May. 8, 1990
4915692 Non-reusable syringe Apr. 10, 1990

1 2 3 4 5










 
 
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