Injection syringe
OwnerSalome Tkebuchava, Tengiz Tkebuchavainventors
Life of this patent
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Abstract
An injection syringe device includes a tubular barrel, a plunger, and a piezo-chromic pressure indicator. The plunger has a distal tip and is designed to fit tightly and to reciprocate within the tubular barrel. Pulling the plunger out of the tubular barrel draws a liquid or a gas inside the tubular barrel in a space between the distal tip and a distal end of the tubular barrel and pushing the plunger into the tubular barrel expels the liquid or gas from the space. The piezo-chromic pressure indicator changes color to indicate pressure applied on the liquid or gas being expelled and/or target tissue being injected with the liquid or gas.
Claims20
An injection syringe device comprising:
- a tubular barrel and a plunger;
- wherein the plunger comprises a distal tip and is designed to fit tightly and to reciprocate within the tubular barrel and wherein pulling the plunger out of the tubular barrel draws a liquid or a gas inside the tubular barrel in a space between the distal tip and a distal end of the tubular barrel and pushing the plunger into the tubular barrel expels the liquid or gas from said space;
- and
- a piezo-chromic pressure indicator that changes color to indicate pressure applied on said liquid or gas being expelled and/or target tissue being injected with said liquid or gas.
A method for injecting a liquid or a gas into a target comprising:
- providing an injection syringe comprising a tubular barrel and a plunger, wherein the plunger comprises a distal tip and is designed to fit tightly and to reciprocate within the tubular barrel;
- pulling the plunger out of the tubular barrel to draw a liquid or a gas inside the tubular barrel in a space between the distal tip and a distal end of the tubular barrel;
- pushing the plunger into the tubular barrel to expel the liquid or gas from said space and into a target;
- and
- providing a piezo-chromic pressure indicator that changes color to indicate pressure applied on said liquid or gas being expelled and/or target being injected with said liquid or gas.
Dependencies are inferred from the claim text.