Disposable safety syringe
Patent 5188601 Issued on February 23, 1993. Estimated Expiration Date: 
November 6, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 6, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2888923 3584626 3677245 Corrosive protected hypodermic module Syringe apparatus with retractable needle Safety blood sample apparatus Medical syringe Manually operated reusable injection apparatus Retractable disposable syringe Disposable syringe with retractable cannula InventorApplicationNo. 787915 filed on 11/06/1991US Classes:604/110, Having means for preventing reuse of device604/195Portion of body entering conduit stored in material receiving syringe reservoirExaminersPrimary: Yasko, John D.Attorney, Agent or FirmInternational ClassA61M 005/32AbstractDisclosed is a syringe assembly which greatly reduces the chances of an operator coming in contact with an infectious needle. The syringe assembly is initially provided with its needle retracted within its barrel, in a sterile and safe environment. When used, the needle is engaged by the plunger, and locked in place at the forward end of the syringe barrel. Before disposal, the needle is withdrawn back into the barrel, and the plunger is broken off. Thus, the disposed of syringe is incapable of being reused, and there is little or no danger of accidental punctures, because the needle is retained within the syringe barrel.Field of SearchHaving means for preventing reuse of devicePortion of body entering conduit stored in material receiving syringe reservoir Injector or aspirator syringe supported only by person during use (e.g., hand held hypodermic syringe, douche tube with forced injection, etc.) Removable cover or protector for body inserted conduit With piston or plunger for expelling material from body or injector reservoir | |
