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US 4,512,768 AGranted
Analgesic syringe
OwnerAvvari Rangaswamyinventor
Life of this patent
Estimating the term…
Abstract
A syringe article, for analgesic puncture with twin needles, the syringe containing a thin walled plastic reservoir filled with local anesthetic mounted under a collapsible roof and located at the distal end of the syringe barrel adjacent the twin needles, so that depression of the syringe plunger compresses sharp projections against the reservoir which is then ruptured to release the local anesthetic for injection into the flesh which will be punctured, the local anesthetic being passed through pores in the wall of an outer positioned needle into the patient's flesh.
Claims5
A syringe, comprising:
- means for releasing a first pharmaceutical into a porous needle as said porous needle is being inserted in a patient, and said porous needle being in fixed adjacent proximity with a continuous walled cannula or needle through which (1) a second pharmaceutical can be passed or (2) fluids can be withdrawn from the patient;
- whereby said first pharmaceutical is infused substantially uniformly into the patient along the length of the inserted porous needle and therefore into the region which said continuous walled cannula or needle is passed.
Dependencies are inferred from the claim text.