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Automatic injector for emergency treatment

  • US 4,795,433 A
  • Filed: 03/31/1988
  • Issued: 01/03/1989
  • Est. Priority Date: 05/20/1985
  • Status: Expired due to Fees
First Claim
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1. Apparatus for treating a patient with a liquid medicament for purposes of establishing reperfusion under circumstances where intravenous injection is not practical but the fast response time of an intravenous injection is desirable comprisingan automatic injector assembly includingouter housing means,medicament cartridge means mounted within said outer housing means in a storage position, said medicament cartridge means including a hypodermic needle, a plurality of medicament containers, and a plurality of medicament ingredients in said medicament containers,moving means within said outer housing means for effecting movement of said medicament cartridge means out of said storage position,mixing means within said outer housing means operable when said medicament cartridge means is moved out of said storage position for mixing the medicament ingredients to form a liquid medicament,said moving means including stressed spring means releasable for effecting movement of said hypodermic needle outwardly of said outer housing means into the muscle tissue of the patient and said mixed liquid medicament outwardly through said needle into the muscle tissue of the patient,said mixed liquid medicament including a clot selective coronary thrombolytic agent and a blood absorption enhancing agent.

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